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-rw-r--r--generic/tkCanvas.c3552
1 files changed, 1695 insertions, 1857 deletions
diff --git a/generic/tkCanvas.c b/generic/tkCanvas.c
index 8f9641f..14fe1ab 100644
--- a/generic/tkCanvas.c
+++ b/generic/tkCanvas.c
@@ -1,23 +1,22 @@
-/*
+/*
* tkCanvas.c --
*
- * This module implements canvas widgets for the Tk toolkit.
- * A canvas displays a background and a collection of graphical
- * objects such as rectangles, lines, and texts.
+ * This module implements canvas widgets for the Tk toolkit. A canvas
+ * displays a background and a collection of graphical objects such as
+ * rectangles, lines, and texts.
*
* Copyright (c) 1991-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 1998-1999 by Scriptics Corporation.
*
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
/* #define USE_OLD_TAG_SEARCH 1 */
#include "default.h"
#include "tkInt.h"
-#include "tkPort.h"
#include "tkCanvas.h"
#ifdef TK_NO_DOUBLE_BUFFERING
#ifdef MAC_OSX_TK
@@ -31,32 +30,29 @@
#ifdef USE_OLD_TAG_SEARCH
/*
- * The structure defined below is used to keep track of a tag search
- * in progress. No field should be accessed by anyone other than
- * StartTagSearch and NextItem.
+ * The structure defined below is used to keep track of a tag search in
+ * progress. No field should be accessed by anyone other than StartTagSearch
+ * and NextItem.
*/
typedef struct TagSearch {
TkCanvas *canvasPtr; /* Canvas widget being searched. */
- Tk_Uid tag; /* Tag to search for. 0 means return
- * all items. */
+ Tk_Uid tag; /* Tag to search for. 0 means return all
+ * items. */
Tk_Item *currentPtr; /* Pointer to last item returned. */
- Tk_Item *lastPtr; /* The item right before the currentPtr
- * is tracked so if the currentPtr is
- * deleted we don't have to start from the
- * beginning. */
+ Tk_Item *lastPtr; /* The item right before the currentPtr is
+ * tracked so if the currentPtr is deleted we
+ * don't have to start from the beginning. */
int searchOver; /* Non-zero means NextItem should always
* return NULL. */
} TagSearch;
#else /* USE_OLD_TAG_SEARCH */
/*
- * The structure defined below is used to keep track of a tag search
- * in progress. No field should be accessed by anyone other than
- * TagSearchScan, TagSearchFirst, TagSearchNext,
- * TagSearchScanExpr, TagSearchEvalExpr,
- * TagSearchExprInit, TagSearchExprDestroy,
- * TagSearchDestroy.
+ * The structure defined below is used to keep track of a tag search in
+ * progress. No field should be accessed by anyone other than TagSearchScan,
+ * TagSearchFirst, TagSearchNext, TagSearchScanExpr, TagSearchEvalExpr,
+ * TagSearchExprInit, TagSearchExprDestroy, TagSearchDestroy.
* (
* Not quite accurate: the TagSearch structure is also accessed from:
* CanvasWidgetCmd, FindItems, RelinkItems
@@ -72,24 +68,32 @@ typedef struct TagSearch {
typedef struct TagSearch {
TkCanvas *canvasPtr; /* Canvas widget being searched. */
Tk_Item *currentPtr; /* Pointer to last item returned. */
- Tk_Item *lastPtr; /* The item right before the currentPtr
- * is tracked so if the currentPtr is
- * deleted we don't have to start from the
- * beginning. */
+ Tk_Item *lastPtr; /* The item right before the currentPtr is
+ * tracked so if the currentPtr is deleted we
+ * don't have to start from the beginning. */
int searchOver; /* Non-zero means NextItem should always
* return NULL. */
- int type; /* search type */
- int id; /* item id for searches by id */
+ int type; /* Search type (see #defs below) */
+ int id; /* Item id for searches by id */
+ char *string; /* Tag expression string */
+ int stringIndex; /* Current position in string scan */
+ int stringLength; /* Length of tag expression string */
+ char *rewritebuffer; /* Tag string (after removing escapes) */
+ unsigned int rewritebufferAllocated;
+ /* Available space for rewrites. */
+ TagSearchExpr *expr; /* Compiled tag expression. */
+} TagSearch;
- char *string; /* tag expression string */
- int stringIndex; /* current position in string scan */
- int stringLength; /* length of tag expression string */
+/*
+ * Values for the TagSearch type field.
+ */
- char *rewritebuffer; /* tag string (after removing escapes) */
- unsigned int rewritebufferAllocated; /* available space for rewrites */
+#define SEARCH_TYPE_EMPTY 0 /* Looking for empty tag */
+#define SEARCH_TYPE_ID 1 /* Looking for an item by id */
+#define SEARCH_TYPE_ALL 2 /* Looking for all items */
+#define SEARCH_TYPE_TAG 3 /* Looking for an item by simple tag */
+#define SEARCH_TYPE_EXPR 4 /* Compound search */
- TagSearchExpr *expr; /* compiled tag expression */
-} TagSearch;
#endif /* USE_OLD_TAG_SEARCH */
/*
@@ -119,10 +123,8 @@ static Tk_ConfigSpec configSpecs[] = {
{TK_CONFIG_BORDER, "-background", "background", "Background",
DEF_CANVAS_BG_MONO, Tk_Offset(TkCanvas, bgBorder),
TK_CONFIG_MONO_ONLY},
- {TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
- (char *) NULL, 0, 0},
- {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
- (char *) NULL, 0, 0},
+ {TK_CONFIG_SYNONYM, "-bd", "borderWidth", NULL, NULL, 0, 0},
+ {TK_CONFIG_SYNONYM, "-bg", "background", NULL, NULL, 0, 0},
{TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
DEF_CANVAS_BORDER_WIDTH, Tk_Offset(TkCanvas, borderWidth), 0},
{TK_CONFIG_DOUBLE, "-closeenough", "closeEnough", "CloseEnough",
@@ -203,13 +205,12 @@ static Tk_ConfigSpec configSpecs[] = {
"ScrollIncrement",
DEF_CANVAS_Y_SCROLL_INCREMENT, Tk_Offset(TkCanvas, yScrollIncrement),
0},
- {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
- (char *) NULL, 0, 0}
+ {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
};
/*
- * List of all the item types known at present. This is *global* and
- * is protected by typeListMutex.
+ * List of all the item types known at present. This is *global* and is
+ * protected by typeListMutex.
*/
static Tk_ItemType *typeList = NULL; /* NULL means initialization hasn't
@@ -218,9 +219,10 @@ TCL_DECLARE_MUTEX(typeListMutex)
#ifndef USE_OLD_TAG_SEARCH
/*
- * Uids for operands in compiled advanced tag search expressions
+ * Uids for operands in compiled advanced tag search expressions.
* Initialization is done by GetStaticUids()
*/
+
typedef struct {
Tk_Uid allUid;
Tk_Uid currentUid;
@@ -235,107 +237,89 @@ typedef struct {
} SearchUids;
static Tcl_ThreadDataKey dataKey;
-static SearchUids *GetStaticUids _ANSI_ARGS_((void));
+static SearchUids * GetStaticUids(void);
#endif /* USE_OLD_TAG_SEARCH */
/*
- * Standard item types provided by Tk:
+ * Prototypes for functions defined later in this file:
*/
-extern Tk_ItemType tkArcType, tkBitmapType, tkImageType, tkLineType;
-extern Tk_ItemType tkOvalType, tkPolygonType;
-extern Tk_ItemType tkRectangleType, tkTextType, tkWindowType;
-
-/*
- * Prototypes for procedures defined later in this file:
- */
-
-static void CanvasBindProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
-static void CanvasBlinkProc _ANSI_ARGS_((ClientData clientData));
-static void CanvasCmdDeletedProc _ANSI_ARGS_((
- ClientData clientData));
-static void CanvasDoEvent _ANSI_ARGS_((TkCanvas *canvasPtr,
- XEvent *eventPtr));
-static void CanvasEventProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
-static int CanvasFetchSelection _ANSI_ARGS_((
- ClientData clientData, int offset,
- char *buffer, int maxBytes));
-static Tk_Item * CanvasFindClosest _ANSI_ARGS_((TkCanvas *canvasPtr,
- double coords[2]));
-static void CanvasFocusProc _ANSI_ARGS_((TkCanvas *canvasPtr,
- int gotFocus));
-static void CanvasLostSelection _ANSI_ARGS_((
- ClientData clientData));
-static void CanvasSelectTo _ANSI_ARGS_((TkCanvas *canvasPtr,
- Tk_Item *itemPtr, int index));
-static void CanvasSetOrigin _ANSI_ARGS_((TkCanvas *canvasPtr,
- int xOrigin, int yOrigin));
-static void CanvasUpdateScrollbars _ANSI_ARGS_((
- TkCanvas *canvasPtr));
-static int CanvasWidgetCmd _ANSI_ARGS_((ClientData clientData,
- Tcl_Interp *interp, int argc, Tcl_Obj *CONST *argv));
-static void CanvasWorldChanged _ANSI_ARGS_((
- ClientData instanceData));
-static int ConfigureCanvas _ANSI_ARGS_((Tcl_Interp *interp,
- TkCanvas *canvasPtr, int argc, Tcl_Obj *CONST *argv,
- int flags));
-static void DestroyCanvas _ANSI_ARGS_((char *memPtr));
-static void DisplayCanvas _ANSI_ARGS_((ClientData clientData));
-static void DoItem _ANSI_ARGS_((Tcl_Interp *interp,
- Tk_Item *itemPtr, Tk_Uid tag));
-static void EventuallyRedrawItem _ANSI_ARGS_((Tk_Canvas canvas,
- Tk_Item *itemPtr));
+static void CanvasBindProc(ClientData clientData,
+ XEvent *eventPtr);
+static void CanvasBlinkProc(ClientData clientData);
+static void CanvasCmdDeletedProc(ClientData clientData);
+static void CanvasDoEvent(TkCanvas *canvasPtr, XEvent *eventPtr);
+static void CanvasEventProc(ClientData clientData,
+ XEvent *eventPtr);
+static int CanvasFetchSelection(ClientData clientData, int offset,
+ char *buffer, int maxBytes);
+static Tk_Item * CanvasFindClosest(TkCanvas *canvasPtr,
+ double coords[2]);
+static void CanvasFocusProc(TkCanvas *canvasPtr, int gotFocus);
+static void CanvasLostSelection(ClientData clientData);
+static void CanvasSelectTo(TkCanvas *canvasPtr,
+ Tk_Item *itemPtr, int index);
+static void CanvasSetOrigin(TkCanvas *canvasPtr,
+ int xOrigin, int yOrigin);
+static void CanvasUpdateScrollbars(TkCanvas *canvasPtr);
+static int CanvasWidgetCmd(ClientData clientData,
+ Tcl_Interp *interp, int argc,
+ Tcl_Obj *CONST *argv);
+static void CanvasWorldChanged(
+ ClientData instanceData);
+static int ConfigureCanvas(Tcl_Interp *interp,
+ TkCanvas *canvasPtr, int argc,
+ Tcl_Obj *CONST *argv, int flags);
+static void DestroyCanvas(char *memPtr);
+static void DisplayCanvas(ClientData clientData);
+static void DoItem(Tcl_Interp *interp,
+ Tk_Item *itemPtr, Tk_Uid tag);
+static void EventuallyRedrawItem(Tk_Canvas canvas,
+ Tk_Item *itemPtr);
#ifdef USE_OLD_TAG_SEARCH
-static int FindItems _ANSI_ARGS_((Tcl_Interp *interp,
- TkCanvas *canvasPtr, int argc, Tcl_Obj *CONST *argv,
- Tcl_Obj *newTagObj, int first));
+static int FindItems(Tcl_Interp *interp, TkCanvas *canvasPtr,
+ int argc, Tcl_Obj *CONST *argv,
+ Tcl_Obj *newTagObj, int first);
#else /* USE_OLD_TAG_SEARCH */
-static int FindItems _ANSI_ARGS_((Tcl_Interp *interp,
- TkCanvas *canvasPtr, int argc, Tcl_Obj *CONST *argv,
+static int FindItems(Tcl_Interp *interp, TkCanvas *canvasPtr,
+ int argc, Tcl_Obj *CONST *argv,
Tcl_Obj *newTagObj, int first,
- TagSearch **searchPtrPtr));
+ TagSearch **searchPtrPtr);
#endif /* USE_OLD_TAG_SEARCH */
-static int FindArea _ANSI_ARGS_((Tcl_Interp *interp,
- TkCanvas *canvasPtr, Tcl_Obj *CONST *argv, Tk_Uid uid,
- int enclosed));
-static double GridAlign _ANSI_ARGS_((double coord, double spacing));
-static CONST char** GetStringsFromObjs _ANSI_ARGS_((int argc,
- Tcl_Obj *CONST *objv));
-static void InitCanvas _ANSI_ARGS_((void));
+static int FindArea(Tcl_Interp *interp, TkCanvas *canvasPtr,
+ Tcl_Obj *CONST *argv, Tk_Uid uid, int enclosed);
+static double GridAlign(double coord, double spacing);
+static CONST char** TkGetStringsFromObjs(int argc, Tcl_Obj *CONST *objv);
+static void InitCanvas(void);
#ifdef USE_OLD_TAG_SEARCH
-static Tk_Item * NextItem _ANSI_ARGS_((TagSearch *searchPtr));
+static Tk_Item * NextItem(TagSearch *searchPtr);
#endif /* USE_OLD_TAG_SEARCH */
-static void PickCurrentItem _ANSI_ARGS_((TkCanvas *canvasPtr,
- XEvent *eventPtr));
-static Tcl_Obj * ScrollFractions _ANSI_ARGS_((int screen1,
- int screen2, int object1, int object2));
+static void PickCurrentItem(TkCanvas *canvasPtr, XEvent *eventPtr);
+static Tcl_Obj * ScrollFractions(int screen1,
+ int screen2, int object1, int object2);
#ifdef USE_OLD_TAG_SEARCH
-static void RelinkItems _ANSI_ARGS_((TkCanvas *canvasPtr,
- Tcl_Obj *tag, Tk_Item *prevPtr));
-static Tk_Item * StartTagSearch _ANSI_ARGS_((TkCanvas *canvasPtr,
- Tcl_Obj *tag, TagSearch *searchPtr));
+static void RelinkItems(TkCanvas *canvasPtr,
+ Tcl_Obj *tag, Tk_Item *prevPtr);
+static Tk_Item * StartTagSearch(TkCanvas *canvasPtr,
+ Tcl_Obj *tag, TagSearch *searchPtr);
#else /* USE_OLD_TAG_SEARCH */
-static int RelinkItems _ANSI_ARGS_((TkCanvas *canvasPtr,
- Tcl_Obj *tag, Tk_Item *prevPtr,
- TagSearch **searchPtrPtr));
-static void TagSearchExprInit _ANSI_ARGS_ ((
- TagSearchExpr **exprPtrPtr));
-static void TagSearchExprDestroy _ANSI_ARGS_((TagSearchExpr *expr));
-static void TagSearchDestroy _ANSI_ARGS_((TagSearch *searchPtr));
-static int TagSearchScan _ANSI_ARGS_((TkCanvas *canvasPtr,
- Tcl_Obj *tag, TagSearch **searchPtrPtr));
-static int TagSearchScanExpr _ANSI_ARGS_((Tcl_Interp *interp,
- TagSearch *searchPtr, TagSearchExpr *expr));
-static int TagSearchEvalExpr _ANSI_ARGS_((TagSearchExpr *expr,
- Tk_Item *itemPtr));
-static Tk_Item * TagSearchFirst _ANSI_ARGS_((TagSearch *searchPtr));
-static Tk_Item * TagSearchNext _ANSI_ARGS_((TagSearch *searchPtr));
+static int RelinkItems(TkCanvas *canvasPtr, Tcl_Obj *tag,
+ Tk_Item *prevPtr, TagSearch **searchPtrPtr);
+static void TagSearchExprInit(TagSearchExpr **exprPtrPtr);
+static void TagSearchExprDestroy(TagSearchExpr *expr);
+static void TagSearchDestroy(TagSearch *searchPtr);
+static int TagSearchScan(TkCanvas *canvasPtr,
+ Tcl_Obj *tag, TagSearch **searchPtrPtr);
+static int TagSearchScanExpr(Tcl_Interp *interp,
+ TagSearch *searchPtr, TagSearchExpr *expr);
+static int TagSearchEvalExpr(TagSearchExpr *expr,
+ Tk_Item *itemPtr);
+static Tk_Item * TagSearchFirst(TagSearch *searchPtr);
+static Tk_Item * TagSearchNext(TagSearch *searchPtr);
#endif /* USE_OLD_TAG_SEARCH */
/*
- * The structure below defines canvas class behavior by means of procedures
+ * The structure below defines canvas class behavior by means of functions
* that can be invoked from generic window code.
*/
@@ -344,15 +328,38 @@ static Tk_ClassProcs canvasClass = {
CanvasWorldChanged, /* worldChangedProc */
};
+/*
+ * Macros that significantly simplify all code that finds items.
+ */
+
+#ifdef USE_OLD_TAG_SEARCH
+#define FIRST_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \
+ (itemPtr) = StartTagSearch(canvasPtr,(objPtr),&search)
+#define FOR_EVERY_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \
+ for ((itemPtr) = StartTagSearch(canvasPtr, (objPtr), &search); \
+ (itemPtr) != NULL; (itemPtr) = NextItem(&search))
+#else /* USE_OLD_TAG_SEARCH */
+#define FIRST_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \
+ if ((result=TagSearchScan(canvasPtr,(objPtr),(searchPtrPtr))) != TCL_OK){ \
+ errorExitClause; \
+ } \
+ itemPtr = TagSearchFirst(*(searchPtrPtr));
+#define FOR_EVERY_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \
+ if ((result=TagSearchScan(canvasPtr,(objPtr),(searchPtrPtr))) != TCL_OK){ \
+ errorExitClause; \
+ } \
+ for (itemPtr = TagSearchFirst(*(searchPtrPtr)); \
+ itemPtr != NULL; itemPtr = TagSearchNext(*(searchPtrPtr)))
+#endif /* USE_OLD_TAG_SEARCH */
+
/*
*--------------------------------------------------------------
*
* Tk_CanvasObjCmd --
*
- * This procedure is invoked to process the "canvas" Tcl
- * command. See the user documentation for details on what
- * it does.
+ * This function is invoked to process the "canvas" Tcl command. See the
+ * user documentation for details on what it does.
*
* Results:
* A standard Tcl result.
@@ -364,16 +371,15 @@ static Tk_ClassProcs canvasClass = {
*/
int
-Tk_CanvasObjCmd(clientData, interp, argc, argv)
- ClientData clientData; /* Main window associated with
- * interpreter. */
- Tcl_Interp *interp; /* Current interpreter. */
- int argc; /* Number of arguments. */
- Tcl_Obj *CONST argv[]; /* Argument objects. */
+Tk_CanvasObjCmd(
+ ClientData clientData, /* Main window associated with interpreter. */
+ Tcl_Interp *interp, /* Current interpreter. */
+ int argc, /* Number of arguments. */
+ Tcl_Obj *CONST argv[]) /* Argument objects. */
{
Tk_Window tkwin = (Tk_Window) clientData;
TkCanvas *canvasPtr;
- Tk_Window new;
+ Tk_Window newWin;
if (typeList == NULL) {
InitCanvas();
@@ -384,21 +390,20 @@ Tk_CanvasObjCmd(clientData, interp, argc, argv)
return TCL_ERROR;
}
- new = Tk_CreateWindowFromPath(interp, tkwin,
- Tcl_GetString(argv[1]), (char *) NULL);
- if (new == NULL) {
+ newWin = Tk_CreateWindowFromPath(interp,tkwin,Tcl_GetString(argv[1]),NULL);
+ if (newWin == NULL) {
return TCL_ERROR;
}
/*
- * Initialize fields that won't be initialized by ConfigureCanvas,
- * or which ConfigureCanvas expects to have reasonable values
- * (e.g. resource pointers).
+ * Initialize fields that won't be initialized by ConfigureCanvas, or
+ * which ConfigureCanvas expects to have reasonable values (e.g. resource
+ * pointers).
*/
canvasPtr = (TkCanvas *) ckalloc(sizeof(TkCanvas));
- canvasPtr->tkwin = new;
- canvasPtr->display = Tk_Display(new);
+ canvasPtr->tkwin = newWin;
+ canvasPtr->display = Tk_Display(newWin);
canvasPtr->interp = interp;
canvasPtr->widgetCmd = Tcl_CreateObjCommand(interp,
Tk_PathName(canvasPtr->tkwin), CanvasWidgetCmd,
@@ -460,8 +465,8 @@ Tk_CanvasObjCmd(clientData, interp, argc, argv)
canvasPtr->hotPrevPtr = NULL;
canvasPtr->cursor = None;
canvasPtr->takeFocus = NULL;
- canvasPtr->pixelsPerMM = WidthOfScreen(Tk_Screen(new));
- canvasPtr->pixelsPerMM /= WidthMMOfScreen(Tk_Screen(new));
+ canvasPtr->pixelsPerMM = WidthOfScreen(Tk_Screen(newWin));
+ canvasPtr->pixelsPerMM /= WidthMMOfScreen(Tk_Screen(newWin));
canvasPtr->flags = 0;
canvasPtr->nextId = 1;
canvasPtr->psInfo = NULL;
@@ -492,7 +497,7 @@ Tk_CanvasObjCmd(clientData, interp, argc, argv)
Tcl_SetResult(interp, Tk_PathName(canvasPtr->tkwin), TCL_STATIC);
return TCL_OK;
- error:
+ error:
Tk_DestroyWindow(canvasPtr->tkwin);
return TCL_ERROR;
}
@@ -502,9 +507,9 @@ Tk_CanvasObjCmd(clientData, interp, argc, argv)
*
* CanvasWidgetCmd --
*
- * This procedure is invoked to process the Tcl command
- * that corresponds to a widget managed by this module.
- * See the user documentation for details on what it does.
+ * This function is invoked to process the Tcl command that corresponds
+ * to a widget managed by this module. See the user documentation for
+ * details on what it does.
*
* Results:
* A standard Tcl result.
@@ -516,22 +521,21 @@ Tk_CanvasObjCmd(clientData, interp, argc, argv)
*/
static int
-CanvasWidgetCmd(clientData, interp, objc, objv)
- ClientData clientData; /* Information about canvas
- * widget. */
- Tcl_Interp *interp; /* Current interpreter. */
- int objc; /* Number of arguments. */
- Tcl_Obj *CONST objv[]; /* Argument objects. */
+CanvasWidgetCmd(
+ ClientData clientData, /* Information about canvas widget. */
+ Tcl_Interp *interp, /* Current interpreter. */
+ int objc, /* Number of arguments. */
+ Tcl_Obj *CONST objv[]) /* Argument objects. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
- int c, length, result;
- Tk_Item *itemPtr = NULL; /* Initialization needed only to
- * prevent compiler warning. */
+ int c, result;
+ Tk_Item *itemPtr = NULL; /* Initialization needed only to prevent
+ * compiler warning. */
#ifdef USE_OLD_TAG_SEARCH
TagSearch search;
#else /* USE_OLD_TAG_SEARCH */
- TagSearch *searchPtr = NULL; /* Allocated by first TagSearchScan
- * Freed by TagSearchDestroy */
+ TagSearch *searchPtr = NULL;/* Allocated by first TagSearchScan, freed by
+ * TagSearchDestroy */
#endif /* USE_OLD_TAG_SEARCH */
int index;
@@ -569,7 +573,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_OK;
switch ((enum options) index) {
- case CANV_ADDTAG: {
+ case CANV_ADDTAG:
if (objc < 4) {
Tcl_WrongNumArgs(interp, 2, objv, "tag searchCommand ?arg arg ...?");
result = TCL_ERROR;
@@ -581,13 +585,12 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = FindItems(interp, canvasPtr, objc, objv, objv[2], 3, &searchPtr);
#endif /* USE_OLD_TAG_SEARCH */
break;
- }
- case CANV_BBOX: {
+ case CANV_BBOX: {
int i, gotAny;
- int x1 = 0, y1 = 0, x2 = 0, y2 = 0; /* Initializations needed
- * only to prevent compiler
- * warnings. */
+ int x1 = 0, y1 = 0, x2 = 0, y2 = 0; /* Initializations needed only
+ * to prevent overcautious
+ * compiler warnings. */
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "tagOrId ?tagOrId ...?");
@@ -596,17 +599,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
gotAny = 0;
for (i = 2; i < objc; i++) {
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[i], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[i], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
-
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[i], &searchPtr, goto done) {
if ((itemPtr->x1 >= itemPtr->x2)
|| (itemPtr->y1 >= itemPtr->y2)) {
continue;
@@ -635,13 +628,13 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
if (gotAny) {
char buf[TCL_INTEGER_SPACE * 4];
-
+
sprintf(buf, "%d %d %d %d", x1, y1, x2, y2);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
}
break;
- }
- case CANV_BIND: {
+ }
+ case CANV_BIND: {
ClientData object;
if ((objc < 3) || (objc > 5)) {
@@ -651,8 +644,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
/*
- * Figure out what object to use for the binding (individual
- * item vs. tag).
+ * Figure out what object to use for the binding (individual item vs.
+ * tag).
*/
object = 0;
@@ -674,7 +667,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
if (object == 0) {
Tcl_AppendResult(interp, "item \"", Tcl_GetString(objv[2]),
- "\" doesn't exist", (char *) NULL);
+ "\" doesn't exist", NULL);
result = TCL_ERROR;
goto done;
}
@@ -683,13 +676,15 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
object = (ClientData) Tk_GetUid(Tcl_GetString(objv[2]));
}
#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
+ result = TagSearchScan(canvasPtr, objv[2], &searchPtr);
+ if (result != TCL_OK) {
goto done;
}
- if (searchPtr->type == 1) {
+ if (searchPtr->type == SEARCH_TYPE_ID) {
Tcl_HashEntry *entryPtr;
- entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable, (char *) searchPtr->id);
+ entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable,
+ (char *) INT2PTR(searchPtr->id));
if (entryPtr != NULL) {
itemPtr = (Tk_Item *) Tcl_GetHashValue(entryPtr);
object = (ClientData) itemPtr;
@@ -697,7 +692,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
if (object == 0) {
Tcl_AppendResult(interp, "item \"", Tcl_GetString(objv[2]),
- "\" doesn't exist", (char *) NULL);
+ "\" doesn't exist", NULL);
result = TCL_ERROR;
goto done;
}
@@ -707,8 +702,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
#endif /* USE_OLD_TAG_SEARCH */
/*
- * Make a binding table if the canvas doesn't already have
- * one.
+ * Make a binding table if the canvas doesn't already have one.
*/
if (canvasPtr->bindingTable == NULL) {
@@ -718,18 +712,19 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
if (objc == 5) {
int append = 0;
unsigned long mask;
- char* argv4 = Tcl_GetStringFromObj(objv[4],NULL);
+ char* argv4 = Tcl_GetString(objv[4]);
if (argv4[0] == 0) {
result = Tk_DeleteBinding(interp, canvasPtr->bindingTable,
- object, Tcl_GetStringFromObj(objv[3], NULL));
+ object, Tcl_GetString(objv[3]));
goto done;
}
#ifndef USE_OLD_TAG_SEARCH
- if (searchPtr->type == 4) {
- /*
- * if new tag expression, then insert in linked list
- */
+ if (searchPtr->type == SEARCH_TYPE_EXPR) {
+ /*
+ * If new tag expression, then insert in linked list.
+ */
+
TagSearchExpr *expr, **lastPtr;
lastPtr = &(canvasPtr->bindTagExprs);
@@ -741,25 +736,27 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
if (!expr) {
/*
- * transfer ownership of expr to bindTagExprs list
+ * Transfer ownership of expr to bindTagExprs list.
*/
+
*lastPtr = searchPtr->expr;
searchPtr->expr->next = NULL;
/*
- * flag in TagSearch that expr has changed ownership
- * so that TagSearchDestroy doesn't try to free it
+ * Flag in TagSearch that expr has changed ownership so
+ * that TagSearchDestroy doesn't try to free it.
*/
+
searchPtr->expr = NULL;
}
- }
+ }
#endif /* not USE_OLD_TAG_SEARCH */
if (argv4[0] == '+') {
argv4++;
append = 1;
}
mask = Tk_CreateBinding(interp, canvasPtr->bindingTable,
- object, Tcl_GetStringFromObj(objv[3],NULL), argv4, append);
+ object, Tcl_GetString(objv[3]), argv4, append);
if (mask == 0) {
result = TCL_ERROR;
goto done;
@@ -770,27 +767,28 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
|EnterWindowMask|LeaveWindowMask|KeyPressMask
|KeyReleaseMask|PointerMotionMask|VirtualEventMask)) {
Tk_DeleteBinding(interp, canvasPtr->bindingTable,
- object, Tcl_GetStringFromObj(objv[3], NULL));
+ object, Tcl_GetString(objv[3]));
Tcl_ResetResult(interp);
Tcl_AppendResult(interp, "requested illegal events; ",
"only key, button, motion, enter, leave, and virtual ",
- "events may be used", (char *) NULL);
+ "events may be used", NULL);
result = TCL_ERROR;
goto done;
}
} else if (objc == 4) {
CONST char *command;
-
+
command = Tk_GetBinding(interp, canvasPtr->bindingTable,
- object, Tcl_GetStringFromObj(objv[3], NULL));
+ object, Tcl_GetString(objv[3]));
if (command == NULL) {
CONST char *string;
- string = Tcl_GetStringResult(interp);
+ string = Tcl_GetStringResult(interp);
+
/*
- * Ignore missing binding errors. This is a special hack
- * that relies on the error message returned by FindSequence
- * in tkBind.c.
+ * Ignore missing binding errors. This is a special hack that
+ * relies on the error message returned by FindSequence in
+ * tkBind.c.
*/
if (string[0] != '\0') {
@@ -806,8 +804,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
Tk_GetAllBindings(interp, canvasPtr->bindingTable, object);
}
break;
- }
- case CANV_CANVASX: {
+ }
+ case CANV_CANVASX: {
int x;
double grid;
char buf[TCL_DOUBLE_SPACE];
@@ -834,8 +832,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
Tcl_PrintDouble(interp, GridAlign((double) x, grid), buf);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
break;
- }
- case CANV_CANVASY: {
+ }
+ case CANV_CANVASY: {
int y;
double grid;
char buf[TCL_DOUBLE_SPACE];
@@ -862,8 +860,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
Tcl_PrintDouble(interp, GridAlign((double) y, grid), buf);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
break;
- }
- case CANV_CGET: {
+ }
+ case CANV_CGET:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "option");
result = TCL_ERROR;
@@ -872,11 +870,10 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = Tk_ConfigureValue(interp, canvasPtr->tkwin, configSpecs,
(char *) canvasPtr, Tcl_GetString(objv[2]), 0);
break;
- }
- case CANV_CONFIGURE: {
+ case CANV_CONFIGURE:
if (objc == 2) {
result = Tk_ConfigureInfo(interp, canvasPtr->tkwin, configSpecs,
- (char *) canvasPtr, (char *) NULL, 0);
+ (char *) canvasPtr, NULL, 0);
} else if (objc == 3) {
result = Tk_ConfigureInfo(interp, canvasPtr->tkwin, configSpecs,
(char *) canvasPtr, Tcl_GetString(objv[2]), 0);
@@ -885,43 +882,37 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
TK_CONFIG_ARGV_ONLY);
}
break;
- }
- case CANV_COORDS: {
+ case CANV_COORDS:
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "tagOrId ?x y x y ...?");
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- itemPtr = TagSearchFirst(searchPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done);
if (itemPtr != NULL) {
if (objc != 3) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
}
if (itemPtr->typePtr->coordProc != NULL) {
- if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = (*itemPtr->typePtr->coordProc)(interp,
- (Tk_Canvas) canvasPtr, itemPtr, objc-3, objv+3);
- } else {
- CONST char **args = GetStringsFromObjs(objc-3, objv+3);
- result = (*itemPtr->typePtr->coordProc)(interp,
- (Tk_Canvas) canvasPtr, itemPtr, objc-3, (Tcl_Obj **) args);
- if (args) ckfree((char *) args);
- }
+ if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
+ result = (*itemPtr->typePtr->coordProc)(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, objc-3, objv+3);
+ } else {
+ CONST char **args = TkGetStringsFromObjs(objc-3, objv+3);
+ result = (*itemPtr->typePtr->coordProc)(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, objc-3,
+ (Tcl_Obj **) args);
+ if (args != NULL) {
+ ckfree((char *) args);
+ }
+ }
}
if (objc != 3) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
}
}
break;
- }
- case CANV_CREATE: {
+ case CANV_CREATE: {
Tk_ItemType *typePtr;
Tk_ItemType *matchPtr = NULL;
Tk_Item *itemPtr;
@@ -929,6 +920,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
int isNew = 0;
Tcl_HashEntry *entryPtr;
char *arg;
+ int length;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "type coords ?arg arg ...?");
@@ -940,13 +932,12 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
Tcl_MutexLock(&typeListMutex);
for (typePtr = typeList; typePtr != NULL; typePtr = typePtr->nextPtr) {
if ((c == typePtr->name[0])
- && (strncmp(arg, typePtr->name, (unsigned) length) == 0)) {
+ && (strncmp(arg, typePtr->name, (unsigned)length) == 0)) {
if (matchPtr != NULL) {
Tcl_MutexUnlock(&typeListMutex);
- badType:
+ badType:
Tcl_AppendResult(interp,
- "unknown or ambiguous item type \"",
- arg, "\"", (char *) NULL);
+ "unknown or ambiguous item type \"",arg,"\"",NULL);
result = TCL_ERROR;
goto done;
}
@@ -984,10 +975,12 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = (*typePtr->createProc)(interp, (Tk_Canvas) canvasPtr,
itemPtr, objc-3, objv+3);
} else {
- CONST char **args = GetStringsFromObjs(objc-3, objv+3);
+ CONST char **args = TkGetStringsFromObjs(objc-3, objv+3);
result = (*typePtr->createProc)(interp, (Tk_Canvas) canvasPtr,
itemPtr, objc-3, (Tcl_Obj **) args);
- if (args) ckfree((char *) args);
+ if (args != NULL) {
+ ckfree((char *) args);
+ }
}
if (result != TCL_OK) {
ckfree((char *) itemPtr);
@@ -996,7 +989,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
itemPtr->nextPtr = NULL;
entryPtr = Tcl_CreateHashEntry(&canvasPtr->idTable,
- (char *) itemPtr->id, &isNew);
+ (char *) INT2PTR(itemPtr->id), &isNew);
Tcl_SetHashValue(entryPtr, itemPtr);
itemPtr->prevPtr = canvasPtr->lastItemPtr;
canvasPtr->hotPtr = itemPtr;
@@ -1013,8 +1006,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
sprintf(buf, "%d", itemPtr->id);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
break;
- }
- case CANV_DCHARS: {
+ }
+ case CANV_DCHARS: {
int first, last;
int x1,x2,y1,y2;
@@ -1023,37 +1016,32 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
if ((itemPtr->typePtr->indexProc == NULL)
|| (itemPtr->typePtr->dCharsProc == NULL)) {
continue;
}
if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, (char *) objv[3], &first);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, (char *) objv[3],
+ &first);
} else {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, Tcl_GetStringFromObj(objv[3], NULL), &first);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[3]),
+ &first);
}
if (result != TCL_OK) {
goto done;
}
if (objc == 5) {
if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, (char *) objv[4], &last);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, (char *) objv[4],
+ &last);
} else {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, Tcl_GetStringFromObj(objv[4], NULL), &last);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr,
+ Tcl_GetString(objv[4]), &last);
}
if (result != TCL_OK) {
goto done;
@@ -1063,10 +1051,10 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
/*
- * Redraw both item's old and new areas: it's possible
- * that a delete could result in a new area larger than
- * the old area. Except if the insertProc sets the
- * TK_ITEM_DONT_REDRAW flag, nothing more needs to be done.
+ * Redraw both item's old and new areas: it's possible that a
+ * delete could result in a new area larger than the old area.
+ * Except if the insertProc sets the TK_ITEM_DONT_REDRAW flag,
+ * nothing more needs to be done.
*/
x1 = itemPtr->x1; y1 = itemPtr->y1;
@@ -1082,22 +1070,13 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW;
}
break;
- }
- case CANV_DELETE: {
+ }
+ case CANV_DELETE: {
int i;
Tcl_HashEntry *entryPtr;
for (i = 2; i < objc; i++) {
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[i], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[i], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[i], &searchPtr, goto done) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
if (canvasPtr->bindingTable != NULL) {
Tk_DeleteAllBindings(canvasPtr->bindingTable,
@@ -1109,7 +1088,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
ckfree((char *) itemPtr->tagPtr);
}
entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable,
- (char *) itemPtr->id);
+ (char *) INT2PTR(itemPtr->id));
Tcl_DeleteHashEntry(entryPtr);
if (itemPtr->nextPtr != NULL) {
itemPtr->nextPtr->prevPtr = itemPtr->prevPtr;
@@ -1148,8 +1127,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
}
break;
- }
- case CANV_DTAG: {
+ }
+ case CANV_DTAG: {
Tk_Uid tag;
int i;
@@ -1159,20 +1138,11 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
goto done;
}
if (objc == 4) {
- tag = Tk_GetUid(Tcl_GetStringFromObj(objv[3], NULL));
+ tag = Tk_GetUid(Tcl_GetString(objv[3]));
} else {
- tag = Tk_GetUid(Tcl_GetStringFromObj(objv[2], NULL));
+ tag = Tk_GetUid(Tcl_GetString(objv[2]));
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
for (i = itemPtr->numTags-1; i >= 0; i--) {
if (itemPtr->tagPtr[i] == tag) {
itemPtr->tagPtr[i] = itemPtr->tagPtr[itemPtr->numTags-1];
@@ -1181,22 +1151,21 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
}
break;
- }
- case CANV_FIND: {
+ }
+ case CANV_FIND:
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "searchCommand ?arg arg ...?");
result = TCL_ERROR;
goto done;
}
#ifdef USE_OLD_TAG_SEARCH
- result = FindItems(interp, canvasPtr, objc, objv, (Tcl_Obj *) NULL, 2);
+ result = FindItems(interp, canvasPtr, objc, objv, NULL, 2);
#else /* USE_OLD_TAG_SEARCH */
- result = FindItems(interp, canvasPtr, objc, objv,
- (Tcl_Obj *) NULL, 2, &searchPtr);
+ result = FindItems(interp, canvasPtr, objc, objv, NULL, 2,
+ &searchPtr);
#endif /* USE_OLD_TAG_SEARCH */
break;
- }
- case CANV_FOCUS: {
+ case CANV_FOCUS:
if (objc > 3) {
Tcl_WrongNumArgs(interp, 2, objv, "?tagOrId?");
result = TCL_ERROR;
@@ -1206,7 +1175,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
if (objc == 2) {
if (itemPtr != NULL) {
char buf[TCL_INTEGER_SPACE];
-
+
sprintf(buf, "%d", itemPtr->id);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
}
@@ -1215,20 +1184,11 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
if ((itemPtr != NULL) && (canvasPtr->textInfo.gotFocus)) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
}
- if (Tcl_GetStringFromObj(objv[2], NULL)[0] == 0) {
+ if (Tcl_GetString(objv[2])[0] == 0) {
canvasPtr->textInfo.focusItemPtr = NULL;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
if (itemPtr->typePtr->icursorProc != NULL) {
break;
}
@@ -1241,21 +1201,13 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
}
break;
- }
- case CANV_GETTAGS: {
+ case CANV_GETTAGS:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "tagOrId");
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- itemPtr = TagSearchFirst(searchPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done);
if (itemPtr != NULL) {
int i;
for (i = 0; i < itemPtr->numTags; i++) {
@@ -1263,8 +1215,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
}
break;
- }
- case CANV_ICURSOR: {
+ case CANV_ICURSOR: {
int index;
if (objc != 4) {
@@ -1272,26 +1223,19 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
if ((itemPtr->typePtr->indexProc == NULL)
|| (itemPtr->typePtr->icursorProc == NULL)) {
goto done;
}
if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, (char *) objv[3], &index);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, (char *) objv[3],
+ &index);
} else {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, Tcl_GetStringFromObj(objv[3], NULL), &index);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[3]),
+ &index);
}
if (result != TCL_OK) {
goto done;
@@ -1304,9 +1248,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
}
break;
- }
- case CANV_INDEX: {
-
+ }
+ case CANV_INDEX: {
int index;
char buf[TCL_INTEGER_SPACE];
@@ -1315,23 +1258,14 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
if (itemPtr->typePtr->indexProc != NULL) {
break;
}
}
if (itemPtr == NULL) {
Tcl_AppendResult(interp, "can't find an indexable item \"",
- Tcl_GetStringFromObj(objv[2], NULL), "\"", (char *) NULL);
+ Tcl_GetString(objv[2]), "\"", NULL);
result = TCL_ERROR;
goto done;
}
@@ -1340,7 +1274,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
itemPtr, (char *) objv[3], &index);
} else {
result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, Tcl_GetStringFromObj(objv[3], NULL), &index);
+ itemPtr, Tcl_GetString(objv[3]), &index);
}
if (result != TCL_OK) {
goto done;
@@ -1348,8 +1282,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
sprintf(buf, "%d", index);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
break;
- }
- case CANV_INSERT: {
+ }
+ case CANV_INSERT: {
int beforeThis;
int x1,x2,y1,y2;
@@ -1358,37 +1292,29 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
if ((itemPtr->typePtr->indexProc == NULL)
|| (itemPtr->typePtr->insertProc == NULL)) {
continue;
}
if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, (char *) objv[3], &beforeThis);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, (char *) objv[3],
+ &beforeThis);
} else {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, Tcl_GetStringFromObj(objv[3], NULL), &beforeThis);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[3]),
+ &beforeThis);
}
if (result != TCL_OK) {
goto done;
}
/*
- * Redraw both item's old and new areas: it's possible
- * that an insertion could result in a new area either
- * larger or smaller than the old area. Except if the
- * insertProc sets the TK_ITEM_DONT_REDRAW flag, nothing
- * more needs to be done.
+ * Redraw both item's old and new areas: it's possible that an
+ * insertion could result in a new area either larger or smaller
+ * than the old area. Except if the insertProc sets the
+ * TK_ITEM_DONT_REDRAW flag, nothing more needs to be done.
*/
x1 = itemPtr->x1; y1 = itemPtr->y1;
@@ -1399,7 +1325,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
itemPtr, beforeThis, (char *) objv[4]);
} else {
(*itemPtr->typePtr->insertProc)((Tk_Canvas) canvasPtr,
- itemPtr, beforeThis, Tcl_GetStringFromObj(objv[4], NULL));
+ itemPtr, beforeThis, Tcl_GetString(objv[4]));
}
if (!(itemPtr->redraw_flags & TK_ITEM_DONT_REDRAW)) {
Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr,
@@ -1409,48 +1335,31 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW;
}
break;
- }
- case CANV_ITEMCGET: {
+ }
+ case CANV_ITEMCGET:
if (objc != 4) {
Tcl_WrongNumArgs(interp, 2, objv, "tagOrId option");
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- itemPtr = TagSearchFirst(searchPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done);
if (itemPtr != NULL) {
result = Tk_ConfigureValue(canvasPtr->interp, canvasPtr->tkwin,
itemPtr->typePtr->configSpecs, (char *) itemPtr,
- Tcl_GetStringFromObj(objv[3], NULL), 0);
+ Tcl_GetString(objv[3]), 0);
}
break;
- }
- case CANV_ITEMCONFIGURE: {
+ case CANV_ITEMCONFIGURE:
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "tagOrId ?option value ...?");
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
if (objc == 3) {
result = Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin,
itemPtr->typePtr->configSpecs, (char *) itemPtr,
- (char *) NULL, 0);
+ NULL, 0);
} else if (objc == 4) {
result = Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin,
itemPtr->typePtr->configSpecs, (char *) itemPtr,
@@ -1458,15 +1367,17 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
} else {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = (*itemPtr->typePtr->configProc)(interp,
- (Tk_Canvas) canvasPtr, itemPtr, objc-3, objv+3,
- TK_CONFIG_ARGV_ONLY);
+ result = (*itemPtr->typePtr->configProc)(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, objc-3, objv+3,
+ TK_CONFIG_ARGV_ONLY);
} else {
- CONST char **args = GetStringsFromObjs(objc-3, objv+3);
- result = (*itemPtr->typePtr->configProc)(interp,
- (Tk_Canvas) canvasPtr, itemPtr, objc-3, (Tcl_Obj **) args,
- TK_CONFIG_ARGV_ONLY);
- if (args) ckfree((char *) args);
+ CONST char **args = TkGetStringsFromObjs(objc-3, objv+3);
+ result = (*itemPtr->typePtr->configProc)(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, objc-3,
+ (Tcl_Obj **) args, TK_CONFIG_ARGV_ONLY);
+ if (args != NULL) {
+ ckfree((char *) args);
+ }
}
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
canvasPtr->flags |= REPICK_NEEDED;
@@ -1476,8 +1387,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
}
break;
- }
- case CANV_LOWER: {
+ case CANV_LOWER: {
Tk_Item *itemPtr;
if ((objc != 3) && (objc != 4)) {
@@ -1487,24 +1397,16 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
/*
- * First find the item just after which we'll insert the
- * named items.
+ * First find the item just after which we'll insert the named items.
*/
if (objc == 3) {
itemPtr = NULL;
} else {
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, objv[3], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[3], &searchPtr)) != TCL_OK) {
- goto done;
- }
- itemPtr = TagSearchFirst(searchPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ FIRST_CANVAS_ITEM_MATCHING(objv[3], &searchPtr, goto done);
if (itemPtr == NULL) {
Tcl_AppendResult(interp, "tag \"", Tcl_GetString(objv[3]),
- "\" doesn't match any items", (char *) NULL);
+ "\" doesn't match any items", NULL);
result = TCL_ERROR;
goto done;
}
@@ -1513,13 +1415,11 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
#ifdef USE_OLD_TAG_SEARCH
RelinkItems(canvasPtr, objv[2], itemPtr);
#else /* USE_OLD_TAG_SEARCH */
- if ((result = RelinkItems(canvasPtr, objv[2], itemPtr, &searchPtr)) != TCL_OK) {
- goto done;
- }
+ result = RelinkItems(canvasPtr, objv[2], itemPtr, &searchPtr);
#endif /* USE_OLD_TAG_SEARCH */
break;
- }
- case CANV_MOVE: {
+ }
+ case CANV_MOVE: {
double xAmount, yAmount;
if (objc != 5) {
@@ -1533,16 +1433,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
(void) (*itemPtr->typePtr->translateProc)((Tk_Canvas) canvasPtr,
itemPtr, xAmount, yAmount);
@@ -1550,14 +1441,17 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
canvasPtr->flags |= REPICK_NEEDED;
}
break;
- }
- case CANV_POSTSCRIPT: {
- CONST char **args = GetStringsFromObjs(objc, objv);
+ }
+ case CANV_POSTSCRIPT: {
+ CONST char **args = TkGetStringsFromObjs(objc, objv);
+
result = TkCanvPostscriptCmd(canvasPtr, interp, objc, args);
- if (args) ckfree((char *) args);
+ if (args != NULL) {
+ ckfree((char *) args);
+ }
break;
- }
- case CANV_RAISE: {
+ }
+ case CANV_RAISE: {
Tk_Item *prevPtr;
if ((objc != 3) && (objc != 4)) {
@@ -1567,29 +1461,19 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
/*
- * First find the item just after which we'll insert the
- * named items.
+ * First find the item just after which we'll insert the named items.
*/
if (objc == 3) {
prevPtr = canvasPtr->lastItemPtr;
} else {
prevPtr = NULL;
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[3], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[3], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[3], &searchPtr, goto done) {
prevPtr = itemPtr;
}
if (prevPtr == NULL) {
- Tcl_AppendResult(interp, "tagOrId \"", Tcl_GetStringFromObj(objv[3], NULL),
- "\" doesn't match any items", (char *) NULL);
+ Tcl_AppendResult(interp, "tagOrId \"", Tcl_GetString(objv[3]),
+ "\" doesn't match any items", NULL);
result = TCL_ERROR;
goto done;
}
@@ -1597,14 +1481,11 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
#ifdef USE_OLD_TAG_SEARCH
RelinkItems(canvasPtr, objv[2], prevPtr);
#else /* USE_OLD_TAG_SEARCH */
- result = RelinkItems(canvasPtr, objv[2], prevPtr, &searchPtr);
- if (result != TCL_OK) {
- goto done;
- }
+ result = RelinkItems(canvasPtr, objv[2], prevPtr, &searchPtr);
#endif /* USE_OLD_TAG_SEARCH */
break;
- }
- case CANV_SCALE: {
+ }
+ case CANV_SCALE: {
double xOrigin, yOrigin, xScale, yScale;
if (objc != 7) {
@@ -1626,16 +1507,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr);
(void) (*itemPtr->typePtr->scaleProc)((Tk_Canvas) canvasPtr,
itemPtr, xOrigin, yOrigin, xScale, yScale);
@@ -1643,9 +1515,9 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
canvasPtr->flags |= REPICK_NEEDED;
}
break;
- }
- case CANV_SCAN: {
- int x, y, gain=10;
+ }
+ case CANV_SCAN: {
+ int x, y, gain = 10;
static CONST char *optionStrings[] = {
"mark", "dragto", NULL
};
@@ -1687,8 +1559,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
CanvasSetOrigin(canvasPtr, newXOrigin, newYOrigin);
}
break;
- }
- case CANV_SELECT: {
+ }
+ case CANV_SELECT: {
int index, optionindex;
static CONST char *optionStrings[] = {
"adjust", "clear", "from", "item", "to", NULL
@@ -1703,16 +1575,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
goto done;
}
if (objc >= 4) {
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, objv[3], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[3], &searchPtr)) != TCL_OK) {
- goto done;
- }
- for (itemPtr = TagSearchFirst(searchPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(searchPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[3], &searchPtr, goto done) {
if ((itemPtr->typePtr->indexProc != NULL)
&& (itemPtr->typePtr->selectionProc != NULL)){
break;
@@ -1721,30 +1584,32 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
if (itemPtr == NULL) {
Tcl_AppendResult(interp,
"can't find an indexable and selectable item \"",
- Tcl_GetStringFromObj(objv[3], NULL), "\"", (char *) NULL);
+ Tcl_GetString(objv[3]), "\"", NULL);
result = TCL_ERROR;
goto done;
}
}
if (objc == 5) {
if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, (char *) objv[4], &index);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, (char *) objv[4],
+ &index);
} else {
- result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr,
- itemPtr, Tcl_GetStringFromObj(objv[4], NULL), &index);
+ result = itemPtr->typePtr->indexProc(interp,
+ (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[4]),
+ &index);
}
if (result != TCL_OK) {
goto done;
}
}
- if (Tcl_GetIndexFromObj(interp, objv[2], optionStrings, "select option", 0,
- &optionindex) != TCL_OK) {
+ if (Tcl_GetIndexFromObj(interp, objv[2], optionStrings,
+ "select option", 0, &optionindex) != TCL_OK) {
result = TCL_ERROR;
goto done;
}
switch ((enum options) optionindex) {
- case CANV_ADJUST: {
+ case CANV_ADJUST:
if (objc != 5) {
Tcl_WrongNumArgs(interp, 3, objv, "tagOrId index");
result = TCL_ERROR;
@@ -1762,10 +1627,9 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
CanvasSelectTo(canvasPtr, itemPtr, index);
break;
- }
- case CANV_CLEAR: {
+ case CANV_CLEAR:
if (objc != 3) {
- Tcl_AppendResult(interp, 3, objv, (char *) NULL);
+ Tcl_WrongNumArgs(interp, 3, objv, NULL);
result = TCL_ERROR;
goto done;
}
@@ -1776,8 +1640,7 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
goto done;
break;
- }
- case CANV_FROM: {
+ case CANV_FROM:
if (objc != 5) {
Tcl_WrongNumArgs(interp, 3, objv, "tagOrId index");
result = TCL_ERROR;
@@ -1786,22 +1649,18 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
canvasPtr->textInfo.anchorItemPtr = itemPtr;
canvasPtr->textInfo.selectAnchor = index;
break;
- }
- case CANV_ITEM: {
+ case CANV_ITEM:
if (objc != 3) {
- Tcl_WrongNumArgs(interp, 3, objv, (char *) NULL);
+ Tcl_WrongNumArgs(interp, 3, objv, NULL);
result = TCL_ERROR;
goto done;
}
if (canvasPtr->textInfo.selItemPtr != NULL) {
- char buf[TCL_INTEGER_SPACE];
-
- sprintf(buf, "%d", canvasPtr->textInfo.selItemPtr->id);
- Tcl_SetResult(interp, buf, TCL_VOLATILE);
+ Tcl_SetObjResult(interp,
+ Tcl_NewIntObj(canvasPtr->textInfo.selItemPtr->id));
}
break;
- }
- case CANV_TO: {
+ case CANV_TO:
if (objc != 5) {
Tcl_WrongNumArgs(interp, 2, objv, "tagOrId index");
result = TCL_ERROR;
@@ -1809,30 +1668,21 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
}
CanvasSelectTo(canvasPtr, itemPtr, index);
break;
- }
}
break;
- }
- case CANV_TYPE: {
+ }
+ case CANV_TYPE:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "tag");
result = TCL_ERROR;
goto done;
}
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, objv[2], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if ((result = TagSearchScan(canvasPtr, objv[2], &searchPtr)) != TCL_OK) {
- goto done;
- }
- itemPtr = TagSearchFirst(searchPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done);
if (itemPtr != NULL) {
Tcl_SetResult(interp, itemPtr->typePtr->name, TCL_STATIC);
}
break;
- }
- case CANV_XVIEW: {
+ case CANV_XVIEW: {
int count, type;
int newX = 0; /* Initialization needed only to prevent
* gcc warnings. */
@@ -1845,84 +1695,89 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
- canvasPtr->inset, canvasPtr->scrollX1,
canvasPtr->scrollX2));
} else {
- CONST char **args = GetStringsFromObjs(objc, objv);
+ CONST char **args = TkGetStringsFromObjs(objc, objv);
type = Tk_GetScrollInfo(interp, objc, args, &fraction, &count);
- if (args) ckfree((char *) args);
+ if (args != NULL) {
+ ckfree((char *) args);
+ }
switch (type) {
- case TK_SCROLL_ERROR:
- result = TCL_ERROR;
- goto done;
- case TK_SCROLL_MOVETO:
- newX = canvasPtr->scrollX1 - canvasPtr->inset
- + (int) (fraction * (canvasPtr->scrollX2
- - canvasPtr->scrollX1) + 0.5);
- break;
- case TK_SCROLL_PAGES:
- newX = (int) (canvasPtr->xOrigin + count * .9
- * (Tk_Width(canvasPtr->tkwin) - 2*canvasPtr->inset));
- break;
- case TK_SCROLL_UNITS:
- if (canvasPtr->xScrollIncrement > 0) {
- newX = canvasPtr->xOrigin
- + count*canvasPtr->xScrollIncrement;
- } else {
- newX = (int) (canvasPtr->xOrigin + count * .1
- * (Tk_Width(canvasPtr->tkwin)
- - 2*canvasPtr->inset));
- }
- break;
+ case TK_SCROLL_ERROR:
+ result = TCL_ERROR;
+ goto done;
+ case TK_SCROLL_MOVETO:
+ newX = canvasPtr->scrollX1 - canvasPtr->inset
+ + (int) (fraction * (canvasPtr->scrollX2
+ - canvasPtr->scrollX1) + 0.5);
+ break;
+ case TK_SCROLL_PAGES:
+ newX = (int) (canvasPtr->xOrigin + count * .9
+ * (Tk_Width(canvasPtr->tkwin) - 2*canvasPtr->inset));
+ break;
+ case TK_SCROLL_UNITS:
+ if (canvasPtr->xScrollIncrement > 0) {
+ newX = canvasPtr->xOrigin
+ + count*canvasPtr->xScrollIncrement;
+ } else {
+ newX = (int) (canvasPtr->xOrigin + count * .1
+ * (Tk_Width(canvasPtr->tkwin)
+ - 2*canvasPtr->inset));
+ }
+ break;
}
CanvasSetOrigin(canvasPtr, newX, canvasPtr->yOrigin);
}
break;
- }
- case CANV_YVIEW: {
+ }
+ case CANV_YVIEW: {
int count, type;
int newY = 0; /* Initialization needed only to prevent
* gcc warnings. */
double fraction;
if (objc == 2) {
- Tcl_SetObjResult(interp,ScrollFractions(\
+ Tcl_SetObjResult(interp, ScrollFractions(
canvasPtr->yOrigin + canvasPtr->inset,
canvasPtr->yOrigin + Tk_Height(canvasPtr->tkwin)
- - canvasPtr->inset, canvasPtr->scrollY1,
- canvasPtr->scrollY2));
+ - canvasPtr->inset,
+ canvasPtr->scrollY1, canvasPtr->scrollY2));
} else {
- CONST char **args = GetStringsFromObjs(objc, objv);
+ CONST char **args = TkGetStringsFromObjs(objc, objv);
type = Tk_GetScrollInfo(interp, objc, args, &fraction, &count);
- if (args) ckfree((char *) args);
+ if (args != NULL) {
+ ckfree((char *) args);
+ }
switch (type) {
- case TK_SCROLL_ERROR:
- result = TCL_ERROR;
- goto done;
- case TK_SCROLL_MOVETO:
- newY = canvasPtr->scrollY1 - canvasPtr->inset
- + (int) (fraction*(canvasPtr->scrollY2
- - canvasPtr->scrollY1) + 0.5);
- break;
- case TK_SCROLL_PAGES:
- newY = (int) (canvasPtr->yOrigin + count * .9
+ case TK_SCROLL_ERROR:
+ result = TCL_ERROR;
+ goto done;
+ case TK_SCROLL_MOVETO:
+ newY = canvasPtr->scrollY1 - canvasPtr->inset
+ + (int) (fraction*(canvasPtr->scrollY2
+ - canvasPtr->scrollY1) + 0.5);
+ break;
+ case TK_SCROLL_PAGES:
+ newY = (int) (canvasPtr->yOrigin + count * .9
+ * (Tk_Height(canvasPtr->tkwin)
+ - 2*canvasPtr->inset));
+ break;
+ case TK_SCROLL_UNITS:
+ if (canvasPtr->yScrollIncrement > 0) {
+ newY = canvasPtr->yOrigin
+ + count*canvasPtr->yScrollIncrement;
+ } else {
+ newY = (int) (canvasPtr->yOrigin + count * .1
* (Tk_Height(canvasPtr->tkwin)
- 2*canvasPtr->inset));
- break;
- case TK_SCROLL_UNITS:
- if (canvasPtr->yScrollIncrement > 0) {
- newY = canvasPtr->yOrigin
- + count*canvasPtr->yScrollIncrement;
- } else {
- newY = (int) (canvasPtr->yOrigin + count * .1
- * (Tk_Height(canvasPtr->tkwin)
- - 2*canvasPtr->inset));
- }
- break;
+ }
+ break;
}
CanvasSetOrigin(canvasPtr, canvasPtr->xOrigin, newY);
}
break;
- }
}
- done:
+ }
+
+ done:
#ifndef USE_OLD_TAG_SEARCH
TagSearchDestroy(searchPtr);
#endif /* not USE_OLD_TAG_SEARCH */
@@ -1935,9 +1790,9 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
*
* DestroyCanvas --
*
- * This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
- * to clean up the internal structure of a canvas at a safe time
- * (when no-one is using it anymore).
+ * This function is invoked by Tcl_EventuallyFree or Tcl_Release to clean
+ * up the internal structure of a canvas at a safe time (when no-one is
+ * using it anymore).
*
* Results:
* None.
@@ -1949,8 +1804,8 @@ CanvasWidgetCmd(clientData, interp, objc, objv)
*/
static void
-DestroyCanvas(memPtr)
- char *memPtr; /* Info about canvas widget. */
+DestroyCanvas(
+ char *memPtr) /* Info about canvas widget. */
{
TkCanvas *canvasPtr = (TkCanvas *) memPtr;
Tk_Item *itemPtr;
@@ -1974,9 +1829,8 @@ DestroyCanvas(memPtr)
}
/*
- * Free up all the stuff that requires special handling,
- * then let Tk_FreeOptions handle all the standard option-related
- * stuff.
+ * Free up all the stuff that requires special handling, then let
+ * Tk_FreeOptions handle all the standard option-related stuff.
*/
Tcl_DeleteHashTable(&canvasPtr->idTable);
@@ -1990,7 +1844,7 @@ DestroyCanvas(memPtr)
TagSearchExprDestroy(expr);
expr = next;
}
-#endif
+#endif /* USE_OLD_TAG_SEARCH */
Tcl_DeleteTimerHandler(canvasPtr->insertBlinkHandler);
if (canvasPtr->bindingTable != NULL) {
Tk_DeleteBindingTable(canvasPtr->bindingTable);
@@ -2005,33 +1859,33 @@ DestroyCanvas(memPtr)
*
* ConfigureCanvas --
*
- * This procedure is called to process an objv/objc list, plus
- * the Tk option database, in order to configure (or
- * reconfigure) a canvas widget.
+ * This function is called to process an objv/objc list, plus the Tk
+ * option database, in order to configure (or reconfigure) a canvas
+ * widget.
*
* Results:
- * The return value is a standard Tcl result. If TCL_ERROR is
- * returned, then the interp's result contains an error message.
+ * The return value is a standard Tcl result. If TCL_ERROR is returned,
+ * then the interp's result contains an error message.
*
* Side effects:
- * Configuration information, such as colors, border width,
- * etc. get set for canvasPtr; old resources get freed,
- * if there were any.
+ * Configuration information, such as colors, border width, etc. get set
+ * for canvasPtr; old resources get freed, if there were any.
*
*----------------------------------------------------------------------
*/
static int
-ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
- Tcl_Interp *interp; /* Used for error reporting. */
- TkCanvas *canvasPtr; /* Information about widget; may or may
- * not already have values for some fields. */
- int objc; /* Number of valid entries in objv. */
- Tcl_Obj *CONST objv[]; /* Argument objects. */
- int flags; /* Flags to pass to Tk_ConfigureWidget. */
+ConfigureCanvas(
+ Tcl_Interp *interp, /* Used for error reporting. */
+ TkCanvas *canvasPtr, /* Information about widget; may or may not
+ * already have values for some fields. */
+ int objc, /* Number of valid entries in objv. */
+ Tcl_Obj *CONST objv[], /* Argument objects. */
+ int flags) /* Flags to pass to Tk_ConfigureWidget. */
{
XGCValues gcValues;
- GC new;
+ GC newGC;
+ Tk_State old_canvas_state=canvasPtr->canvas_state;
if (Tk_ConfigureWidget(interp, canvasPtr->tkwin, configSpecs,
objc, (CONST char **) objv, (char *) canvasPtr,
@@ -2040,9 +1894,8 @@ ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
}
/*
- * A few options need special processing, such as setting the
- * background from a 3-D border and creating a GC for copying
- * bits to the screen.
+ * A few options need special processing, such as setting the background
+ * from a 3-D border and creating a GC for copying bits to the screen.
*/
Tk_SetBackgroundFromBorder(canvasPtr->tkwin, canvasPtr->bgBorder);
@@ -2055,12 +1908,33 @@ ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
gcValues.function = GXcopy;
gcValues.graphics_exposures = False;
gcValues.foreground = Tk_3DBorderColor(canvasPtr->bgBorder)->pixel;
- new = Tk_GetGC(canvasPtr->tkwin,
+ newGC = Tk_GetGC(canvasPtr->tkwin,
GCFunction|GCGraphicsExposures|GCForeground, &gcValues);
if (canvasPtr->pixmapGC != None) {
Tk_FreeGC(canvasPtr->display, canvasPtr->pixmapGC);
}
- canvasPtr->pixmapGC = new;
+ canvasPtr->pixmapGC = newGC;
+
+ /*
+ * Reconfigure items to reflect changed state disabled/normal.
+ */
+
+ if ( old_canvas_state != canvasPtr->canvas_state ) {
+ Tk_Item *itemPtr;
+ int result;
+
+ for ( itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
+ itemPtr = itemPtr->nextPtr) {
+ if ( itemPtr->state == TK_STATE_NULL ) {
+ result = (*itemPtr->typePtr->configProc)(canvasPtr->interp,
+ (Tk_Canvas) canvasPtr, itemPtr, 0, NULL,
+ TK_CONFIG_ARGV_ONLY);
+ if (result != TCL_OK) {
+ Tcl_ResetResult(canvasPtr->interp);
+ }
+ }
+ }
+ }
/*
* Reset the desired dimensions for the window.
@@ -2070,8 +1944,8 @@ ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
canvasPtr->height + 2*canvasPtr->inset);
/*
- * Restart the cursor timing sequence in case the on-time or off-time
- * just changed.
+ * Restart the cursor timing sequence in case the on-time or off-time just
+ * changed.
*/
if (canvasPtr->textInfo.gotFocus) {
@@ -2096,7 +1970,7 @@ ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
}
if (argc2 != 4) {
Tcl_AppendResult(interp, "bad scrollRegion \"",
- canvasPtr->regionString, "\"", (char *) NULL);
+ canvasPtr->regionString, "\"", NULL);
badRegion:
ckfree(canvasPtr->regionString);
ckfree((char *) argv2);
@@ -2133,8 +2007,8 @@ ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
}
/*
- * Reset the canvas's origin (this is a no-op unless confine
- * mode has just been turned on or the scroll region has changed).
+ * Reset the canvas's origin (this is a no-op unless confine mode has just
+ * been turned on or the scroll region has changed).
*/
CanvasSetOrigin(canvasPtr, canvasPtr->xOrigin, canvasPtr->yOrigin);
@@ -2151,24 +2025,24 @@ ConfigureCanvas(interp, canvasPtr, objc, objv, flags)
*
* CanvasWorldChanged --
*
- * This procedure is called when the world has changed in some
- * way and the widget needs to recompute all its graphics contexts
- * and determine its new geometry.
+ * This function is called when the world has changed in some way and the
+ * widget needs to recompute all its graphics contexts and determine its
+ * new geometry.
*
* Results:
- * None.
+ * None.
*
* Side effects:
- * Configures all items in the canvas with a empty argc/argv, for
- * the side effect of causing all the items to recompute their
- * geometry and to be redisplayed.
+ * Configures all items in the canvas with a empty argc/argv, for the
+ * side effect of causing all the items to recompute their geometry and
+ * to be redisplayed.
*
*---------------------------------------------------------------------------
*/
-
+
static void
-CanvasWorldChanged(instanceData)
- ClientData instanceData; /* Information about widget. */
+CanvasWorldChanged(
+ ClientData instanceData) /* Information about widget. */
{
TkCanvas *canvasPtr;
Tk_Item *itemPtr;
@@ -2196,9 +2070,9 @@ CanvasWorldChanged(instanceData)
*
* DisplayCanvas --
*
- * This procedure redraws the contents of a canvas window.
- * It is invoked as a do-when-idle handler, so it only runs
- * when there's nothing else for the application to do.
+ * This function redraws the contents of a canvas window. It is invoked
+ * as a do-when-idle handler, so it only runs when there's nothing else
+ * for the application to do.
*
* Results:
* None.
@@ -2210,8 +2084,8 @@ CanvasWorldChanged(instanceData)
*/
static void
-DisplayCanvas(clientData)
- ClientData clientData; /* Information about widget. */
+DisplayCanvas(
+ ClientData clientData) /* Information about widget. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
Tk_Window tkwin = canvasPtr->tkwin;
@@ -2228,8 +2102,8 @@ DisplayCanvas(clientData)
}
/*
- * Choose a new current item if that is needed (this could cause
- * event handlers to be invoked).
+ * Choose a new current item if that is needed (this could cause event
+ * handlers to be invoked).
*/
while (canvasPtr->flags & REPICK_NEEDED) {
@@ -2244,9 +2118,9 @@ DisplayCanvas(clientData)
}
/*
- * Scan through the item list, registering the bounding box
- * for all items that didn't do that for the final coordinates
- * yet. This can be determined by the FORCE_REDRAW flag.
+ * Scan through the item list, registering the bounding box for all items
+ * that didn't do that for the final coordinates yet. This can be
+ * determined by the FORCE_REDRAW flag.
*/
for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
@@ -2258,8 +2132,8 @@ DisplayCanvas(clientData)
}
}
/*
- * Compute the intersection between the area that needs redrawing
- * and the area that's visible on the screen.
+ * Compute the intersection between the area that needs redrawing and the
+ * area that's visible on the screen.
*/
if ((canvasPtr->redrawX1 < canvasPtr->redrawX2)
@@ -2283,43 +2157,39 @@ DisplayCanvas(clientData)
if ((screenX1 >= screenX2) || (screenY1 >= screenY2)) {
goto borders;
}
-
+
width = screenX2 - screenX1;
height = screenY2 - screenY1;
#ifndef TK_NO_DOUBLE_BUFFERING
/*
- * Redrawing is done in a temporary pixmap that is allocated
- * here and freed at the end of the procedure. All drawing
- * is done to the pixmap, and the pixmap is copied to the
- * screen at the end of the procedure. The temporary pixmap
- * serves two purposes:
+ * Redrawing is done in a temporary pixmap that is allocated here and
+ * freed at the end of the function. All drawing is done to the
+ * pixmap, and the pixmap is copied to the screen at the end of the
+ * function. The temporary pixmap serves two purposes:
*
- * 1. It provides a smoother visual effect (no clearing and
- * gradual redraw will be visible to users).
- * 2. It allows us to redraw only the objects that overlap
- * the redraw area. Otherwise incorrect results could
- * occur from redrawing things that stick outside of
- * the redraw area (we'd have to redraw everything in
- * order to make the overlaps look right).
+ * 1. It provides a smoother visual effect (no clearing and gradual
+ * redraw will be visible to users).
+ * 2. It allows us to redraw only the objects that overlap the redraw
+ * area. Otherwise incorrect results could occur from redrawing
+ * things that stick outside of the redraw area (we'd have to
+ * redraw everything in order to make the overlaps look right).
*
* Some tricky points about the pixmap:
*
- * 1. We only allocate a large enough pixmap to hold the
- * area that has to be redisplayed. This saves time in
- * in the X server for large objects that cover much
- * more than the area being redisplayed: only the area
- * of the pixmap will actually have to be redrawn.
- * 2. Some X servers (e.g. the one for DECstations) have troubles
- * with characters that overlap an edge of the pixmap (on the
- * DEC servers, as of 8/18/92, such characters are drawn one
- * pixel too far to the right). To handle this problem,
- * make the pixmap a bit larger than is absolutely needed
- * so that for normal-sized fonts the characters that overlap
- * the edge of the pixmap will be outside the area we care
- * about.
+ * 1. We only allocate a large enough pixmap to hold the area that has
+ * to be redisplayed. This saves time in in the X server for large
+ * objects that cover much more than the area being redisplayed:
+ * only the area of the pixmap will actually have to be redrawn.
+ * 2. Some X servers (e.g. the one for DECstations) have troubles with
+ * with characters that overlap an edge of the pixmap (on the DEC
+ * servers, as of 8/18/92, such characters are drawn one pixel too
+ * far to the right). To handle this problem, make the pixmap a bit
+ * larger than is absolutely needed so that for normal-sized fonts
+ * the characters that overlap the edge of the pixmap will be
+ * outside the area we care about.
*/
-
+
canvasPtr->drawableXOrigin = screenX1 - 30;
canvasPtr->drawableYOrigin = screenY1 - 30;
pixmap = Tk_GetPixmap(Tk_Display(tkwin), Tk_WindowId(tkwin),
@@ -2334,24 +2204,24 @@ DisplayCanvas(clientData)
screenX1 - canvasPtr->xOrigin, screenY1 - canvasPtr->yOrigin,
width, height);
#endif /* TK_NO_DOUBLE_BUFFERING */
-
+
/*
* Clear the area to be redrawn.
*/
-
+
XFillRectangle(Tk_Display(tkwin), pixmap, canvasPtr->pixmapGC,
screenX1 - canvasPtr->drawableXOrigin,
screenY1 - canvasPtr->drawableYOrigin, (unsigned int) width,
(unsigned int) height);
-
+
/*
- * Scan through the item list, redrawing those items that need it.
- * An item must be redraw if either (a) it intersects the smaller
+ * Scan through the item list, redrawing those items that need it. An
+ * item must be redraw if either (a) it intersects the smaller
* on-screen area or (b) it intersects the full canvas area and its
- * type requests that it be redrawn always (e.g. so subwindows can
- * be unmapped when they move off-screen).
+ * type requests that it be redrawn always (e.g. so subwindows can be
+ * unmapped when they move off-screen).
*/
-
+
for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
itemPtr = itemPtr->nextPtr) {
if ((itemPtr->x1 >= screenX2)
@@ -2375,13 +2245,13 @@ DisplayCanvas(clientData)
canvasPtr->display, pixmap, screenX1, screenY1, width,
height);
}
-
+
#ifndef TK_NO_DOUBLE_BUFFERING
/*
- * Copy from the temporary pixmap to the screen, then free up
- * the temporary pixmap.
+ * Copy from the temporary pixmap to the screen, then free up the
+ * temporary pixmap.
*/
-
+
XCopyArea(Tk_Display(tkwin), pixmap, Tk_WindowId(tkwin),
canvasPtr->pixmapGC,
screenX1 - canvasPtr->drawableXOrigin,
@@ -2398,7 +2268,7 @@ DisplayCanvas(clientData)
* Draw the window borders, if needed.
*/
- borders:
+ borders:
if (canvasPtr->flags & REDRAW_BORDERS) {
canvasPtr->flags &= ~REDRAW_BORDERS;
if (canvasPtr->borderWidth > 0) {
@@ -2426,7 +2296,7 @@ DisplayCanvas(clientData)
}
}
- done:
+ done:
canvasPtr->flags &= ~(REDRAW_PENDING|BBOX_NOT_EMPTY);
canvasPtr->redrawX1 = canvasPtr->redrawX2 = 0;
canvasPtr->redrawY1 = canvasPtr->redrawY2 = 0;
@@ -2440,23 +2310,23 @@ DisplayCanvas(clientData)
*
* CanvasEventProc --
*
- * This procedure is invoked by the Tk dispatcher for various
- * events on canvases.
+ * This function is invoked by the Tk dispatcher for various events on
+ * canvases.
*
* Results:
* None.
*
* Side effects:
- * When the window gets deleted, internal structures get
- * cleaned up. When it gets exposed, it is redisplayed.
+ * When the window gets deleted, internal structures get cleaned up.
+ * When it gets exposed, it is redisplayed.
*
*--------------------------------------------------------------
*/
static void
-CanvasEventProc(clientData, eventPtr)
- ClientData clientData; /* Information about window. */
- XEvent *eventPtr; /* Information about event. */
+CanvasEventProc(
+ ClientData clientData, /* Information about window. */
+ XEvent *eventPtr) /* Information about event. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
@@ -2491,8 +2361,8 @@ CanvasEventProc(clientData, eventPtr)
canvasPtr->flags |= UPDATE_SCROLLBARS;
/*
- * The call below is needed in order to recenter the canvas if
- * it's confined and its scroll region is smaller than the window.
+ * The call below is needed in order to recenter the canvas if it's
+ * confined and its scroll region is smaller than the window.
*/
CanvasSetOrigin(canvasPtr, canvasPtr->xOrigin, canvasPtr->yOrigin);
@@ -2513,9 +2383,9 @@ CanvasEventProc(clientData, eventPtr)
Tk_Item *itemPtr;
/*
- * Special hack: if the canvas is unmapped, then must notify
- * all items with "alwaysRedraw" set, so that they know that
- * they are no longer displayed.
+ * Special hack: if the canvas is unmapped, then must notify all items
+ * with "alwaysRedraw" set, so that they know that they are no longer
+ * displayed.
*/
for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
@@ -2533,9 +2403,9 @@ CanvasEventProc(clientData, eventPtr)
*
* CanvasCmdDeletedProc --
*
- * This procedure is invoked when a widget command is deleted. If
- * the widget isn't already in the process of being destroyed,
- * this command destroys it.
+ * This function is invoked when a widget command is deleted. If the
+ * widget isn't already in the process of being destroyed, this command
+ * destroys it.
*
* Results:
* None.
@@ -2547,17 +2417,17 @@ CanvasEventProc(clientData, eventPtr)
*/
static void
-CanvasCmdDeletedProc(clientData)
- ClientData clientData; /* Pointer to widget record for widget. */
+CanvasCmdDeletedProc(
+ ClientData clientData) /* Pointer to widget record for widget. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
Tk_Window tkwin = canvasPtr->tkwin;
/*
- * This procedure could be invoked either because the window was
- * destroyed and the command was then deleted (in which case tkwin
- * is NULL) or because the command was deleted, and then this procedure
- * destroys the widget.
+ * This function could be invoked either because the window was destroyed
+ * and the command was then deleted (in which case tkwin is NULL) or
+ * because the command was deleted, and then this function destroys the
+ * widget.
*/
if (tkwin != NULL) {
@@ -2571,8 +2441,8 @@ CanvasCmdDeletedProc(clientData)
*
* Tk_CanvasEventuallyRedraw --
*
- * Arrange for part or all of a canvas widget to redrawn at
- * some convenient time in the future.
+ * Arrange for part or all of a canvas widget to redrawn at some
+ * convenient time in the future.
*
* Results:
* None.
@@ -2584,18 +2454,20 @@ CanvasCmdDeletedProc(clientData)
*/
void
-Tk_CanvasEventuallyRedraw(canvas, x1, y1, x2, y2)
- Tk_Canvas canvas; /* Information about widget. */
- int x1, y1; /* Upper left corner of area to redraw.
- * Pixels on edge are redrawn. */
- int x2, y2; /* Lower right corner of area to redraw.
+Tk_CanvasEventuallyRedraw(
+ Tk_Canvas canvas, /* Information about widget. */
+ int x1, int y1, /* Upper left corner of area to redraw. Pixels
+ * on edge are redrawn. */
+ int x2, int y2) /* Lower right corner of area to redraw.
* Pixels on edge are not redrawn. */
{
TkCanvas *canvasPtr = (TkCanvas *) canvas;
+
/*
* If tkwin is NULL, the canvas has been destroyed, so we can't really
* redraw it.
*/
+
if (canvasPtr->tkwin == NULL) {
return;
}
@@ -2637,8 +2509,8 @@ Tk_CanvasEventuallyRedraw(canvas, x1, y1, x2, y2)
*
* EventuallyRedrawItem --
*
- * Arrange for part or all of a canvas widget to redrawn at
- * some convenient time in the future.
+ * Arrange for part or all of a canvas widget to redrawn at some
+ * convenient time in the future.
*
* Results:
* None.
@@ -2650,9 +2522,9 @@ Tk_CanvasEventuallyRedraw(canvas, x1, y1, x2, y2)
*/
static void
-EventuallyRedrawItem(canvas, itemPtr)
- Tk_Canvas canvas; /* Information about widget. */
- Tk_Item *itemPtr; /* item to be redrawn. */
+EventuallyRedrawItem(
+ Tk_Canvas canvas, /* Information about widget. */
+ Tk_Item *itemPtr) /* Item to be redrawn. */
{
TkCanvas *canvasPtr = (TkCanvas *) canvas;
if ((itemPtr->x1 >= itemPtr->x2) || (itemPtr->y1 >= itemPtr->y2) ||
@@ -2698,27 +2570,26 @@ EventuallyRedrawItem(canvas, itemPtr)
*
* Tk_CreateItemType --
*
- * This procedure may be invoked to add a new kind of canvas
- * element to the core item types supported by Tk.
+ * This function may be invoked to add a new kind of canvas element to
+ * the core item types supported by Tk.
*
* Results:
* None.
*
* Side effects:
- * From now on, the new item type will be useable in canvas
- * widgets (e.g. typePtr->name can be used as the item type
- * in "create" widget commands). If there was already a
- * type with the same name as in typePtr, it is replaced with
- * the new type.
+ * From now on, the new item type will be useable in canvas widgets
+ * (e.g. typePtr->name can be used as the item type in "create" widget
+ * commands). If there was already a type with the same name as in
+ * typePtr, it is replaced with the new type.
*
*--------------------------------------------------------------
*/
void
-Tk_CreateItemType(typePtr)
- Tk_ItemType *typePtr; /* Information about item type;
- * storage must be statically
- * allocated (must live forever). */
+Tk_CreateItemType(
+ Tk_ItemType *typePtr) /* Information about item type; storage must
+ * be statically allocated (must live
+ * forever). */
{
Tk_ItemType *typePtr2, *prevPtr;
@@ -2752,14 +2623,14 @@ Tk_CreateItemType(typePtr)
*
* Tk_GetItemTypes --
*
- * This procedure returns a pointer to the list of all item
- * types. Note that this is inherently thread-unsafe, but since
- * item types are only ever registered very rarely this is
- * unlikely to be a problem in practice.
+ * This function returns a pointer to the list of all item types. Note
+ * that this is inherently thread-unsafe, but since item types are only
+ * ever registered very rarely this is unlikely to be a problem in
+ * practice.
*
* Results:
- * The return value is a pointer to the first in the list
- * of item types currently supported by canvases.
+ * The return value is a pointer to the first in the list of item types
+ * currently supported by canvases.
*
* Side effects:
* None.
@@ -2768,7 +2639,7 @@ Tk_CreateItemType(typePtr)
*/
Tk_ItemType *
-Tk_GetItemTypes()
+Tk_GetItemTypes(void)
{
if (typeList == NULL) {
InitCanvas();
@@ -2777,13 +2648,12 @@ Tk_GetItemTypes()
}
/*
- *--------------------------------------------------------------
+ *----------------------------------------------------------------------
*
* InitCanvas --
*
- * This procedure is invoked to perform once-only-ever
- * initialization for the module, such as setting up the type
- * table.
+ * This function is invoked to perform once-only-ever initialization for
+ * the module, such as setting up the type table.
*
* Results:
* None.
@@ -2791,11 +2661,11 @@ Tk_GetItemTypes()
* Side effects:
* None.
*
- *--------------------------------------------------------------
+ *----------------------------------------------------------------------
*/
static void
-InitCanvas()
+InitCanvas(void)
{
Tcl_MutexLock(&typeListMutex);
if (typeList != NULL) {
@@ -2821,33 +2691,30 @@ InitCanvas()
*
* StartTagSearch --
*
- * This procedure is called to initiate an enumeration of
- * all items in a given canvas that contain a given tag.
+ * This function is called to initiate an enumeration of all items in a
+ * given canvas that contain a given tag.
*
* Results:
- * The return value is a pointer to the first item in
- * canvasPtr that matches tag, or NULL if there is no
- * such item. The information at *searchPtr is initialized
- * such that successive calls to NextItem will return
- * successive items that match tag.
+ * The return value is a pointer to the first item in canvasPtr that
+ * matches tag, or NULL if there is no such item. The information at
+ * *searchPtr is initialized such that successive calls to NextItem will
+ * return successive items that match tag.
*
* Side effects:
- * SearchPtr is linked into a list of searches in progress
- * on canvasPtr, so that elements can safely be deleted
- * while the search is in progress. EndTagSearch must be
- * called at the end of the search to unlink searchPtr from
- * this list.
+ * SearchPtr is linked into a list of searches in progress on canvasPtr,
+ * so that elements can safely be deleted while the search is in
+ * progress. EndTagSearch must be called at the end of the search to
+ * unlink searchPtr from this list.
*
*--------------------------------------------------------------
*/
static Tk_Item *
-StartTagSearch(canvasPtr, tagObj, searchPtr)
- TkCanvas *canvasPtr; /* Canvas whose items are to be
- * searched. */
- Tcl_Obj *tagObj; /* Object giving tag value. */
- TagSearch *searchPtr; /* Record describing tag search;
- * will be initialized here. */
+StartTagSearch(
+ TkCanvas *canvasPtr, /* Canvas whose items are to be searched. */
+ Tcl_Obj *tagObj, /* Object giving tag value. */
+ TagSearch *searchPtr) /* Record describing tag search; will be
+ * initialized here. */
{
int id;
Tk_Item *itemPtr, *lastPtr;
@@ -2869,10 +2736,10 @@ StartTagSearch(canvasPtr, tagObj, searchPtr)
searchPtr->searchOver = 0;
/*
- * Find the first matching item in one of several ways. If the tag
- * is a number then it selects the single item with the matching
- * identifier. In this case see if the item being requested is the
- * hot item, in which case the search can be skipped.
+ * Find the first matching item in one of several ways. If the tag is a
+ * number then it selects the single item with the matching identifier.
+ * In this case see if the item being requested is the hot item, in which
+ * case the search can be skipped.
*/
if (isdigit(UCHAR(*tag))) {
@@ -2883,7 +2750,7 @@ StartTagSearch(canvasPtr, tagObj, searchPtr)
id = strtoul(tag, &end, 0);
if (*end == 0) {
itemPtr = canvasPtr->hotPtr;
- lastPtr = canvasPtr->hotPrevPtr;
+ lastPtr = canvasPtr->hotPrevPtr;
if ((itemPtr == NULL) || (itemPtr->id != id) || (lastPtr == NULL)
|| (lastPtr->nextPtr != itemPtr)) {
dispPtr->numSlowSearches++;
@@ -2916,7 +2783,7 @@ StartTagSearch(canvasPtr, tagObj, searchPtr)
}
/*
- * None of the above. Search for an item with a matching tag.
+ * None of the above. Search for an item with a matching tag.
*/
for (lastPtr = NULL, itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
@@ -2940,15 +2807,15 @@ StartTagSearch(canvasPtr, tagObj, searchPtr)
*
* NextItem --
*
- * This procedure returns successive items that match a given
- * tag; it should be called only after StartTagSearch has been
- * used to begin a search.
+ * This function returns successive items that match a given tag; it
+ * should be called only after StartTagSearch has been used to begin a
+ * search.
*
* Results:
- * The return value is a pointer to the next item that matches
- * the tag specified to StartTagSearch, or NULL if no such
- * item exists. *SearchPtr is updated so that the next call
- * to this procedure will return the next item.
+ * The return value is a pointer to the next item that matches the tag
+ * specified to StartTagSearch, or NULL if no such item exists.
+ * *SearchPtr is updated so that the next call to this function will
+ * return the next item.
*
* Side effects:
* None.
@@ -2957,9 +2824,8 @@ StartTagSearch(canvasPtr, tagObj, searchPtr)
*/
static Tk_Item *
-NextItem(searchPtr)
- TagSearch *searchPtr; /* Record describing search in
- * progress. */
+NextItem(
+ TagSearch *searchPtr) /* Record describing search in progress. */
{
Tk_Item *itemPtr, *lastPtr;
int count;
@@ -2967,8 +2833,8 @@ NextItem(searchPtr)
Tk_Uid *tagPtr;
/*
- * Find next item in list (this may not actually be a suitable
- * one to return), and return if there are no items left.
+ * Find next item in list (this may not actually be a suitable one to
+ * return), and return if there are no items left.
*/
lastPtr = searchPtr->lastPtr;
@@ -2983,10 +2849,10 @@ NextItem(searchPtr)
}
if (itemPtr != searchPtr->currentPtr) {
/*
- * The structure of the list has changed. Probably the
- * previously-returned item was removed from the list.
- * In this case, don't advance lastPtr; just return
- * its new successor (i.e. do nothing here).
+ * The structure of the list has changed. Probably the previously-
+ * returned item was removed from the list. In this case, don't
+ * advance lastPtr; just return its new successor (i.e. do nothing
+ * here).
*/
} else {
lastPtr = itemPtr;
@@ -3023,29 +2889,28 @@ NextItem(searchPtr)
return NULL;
}
-#else /* USE_OLD_TAG_SEARCH */
+#else /* !USE_OLD_TAG_SEARCH */
/*
*----------------------------------------------------------------------
*
* GetStaticUids --
*
- *This procedure is invoked to return a structure filled with
- *the Uids used when doing tag searching. If it was never before
- *called in the current thread, it initializes the structure for
- *that thread (uids are only ever local to one thread [Bug
- *1114977]).
+ * This function is invoked to return a structure filled with the Uids
+ * used when doing tag searching. If it was never before called in the
+ * current thread, it initializes the structure for that thread (uids are
+ * only ever local to one thread [Bug 1114977]).
*
* Results:
- *None.
+ * None.
*
* Side effects:
- *None.
+ * None.
*
*----------------------------------------------------------------------
*/
static SearchUids *
-GetStaticUids()
+GetStaticUids(void)
{
SearchUids *searchUids = (SearchUids *)
Tcl_GetThreadData(&dataKey, sizeof(SearchUids));
@@ -3070,7 +2935,7 @@ GetStaticUids()
*
* TagSearchExprInit --
*
- * This procedure allocates and initializes one TagSearchExpr struct.
+ * This function allocates and initializes one TagSearchExpr struct.
*
* Results:
*
@@ -3080,8 +2945,8 @@ GetStaticUids()
*/
static void
-TagSearchExprInit(exprPtrPtr)
- TagSearchExpr **exprPtrPtr;
+TagSearchExprInit(
+ TagSearchExpr **exprPtrPtr)
{
TagSearchExpr* expr = *exprPtrPtr;
@@ -3096,67 +2961,63 @@ TagSearchExprInit(exprPtrPtr)
expr->length = 0;
*exprPtrPtr = expr;
}
-
+
/*
*--------------------------------------------------------------
*
* TagSearchExprDestroy --
*
- * This procedure destroys one TagSearchExpr structure.
+ * This function destroys one TagSearchExpr structure.
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
- */
+ */
static void
-TagSearchExprDestroy(expr)
- TagSearchExpr *expr;
+TagSearchExprDestroy(
+ TagSearchExpr *expr)
{
if (expr) {
if (expr->uids) {
- ckfree((char *)expr->uids);
+ ckfree((char *)expr->uids);
}
- ckfree((char *)expr);
+ ckfree((char *)expr);
}
}
-
+
/*
*--------------------------------------------------------------
*
* TagSearchScan --
*
- * This procedure is called to initiate an enumeration of
- * all items in a given canvas that contain a tag that matches
- * the tagOrId expression.
+ * This function is called to initiate an enumeration of all items in a
+ * given canvas that contain a tag that matches the tagOrId expression.
*
* Results:
- * The return value indicates if the tagOrId expression
- * was successfully scanned (syntax).
- * The information at *searchPtr is initialized
- * such that a call to TagSearchFirst, followed by
- * successive calls to TagSearchNext will return items
- * that match tag.
+ * The return value indicates if the tagOrId expression was successfully
+ * scanned (syntax). The information at *searchPtr is initialized such
+ * that a call to TagSearchFirst, followed by successive calls to
+ * TagSearchNext will return items that match tag.
*
* Side effects:
- * SearchPtr is linked into a list of searches in progress
- * on canvasPtr, so that elements can safely be deleted
- * while the search is in progress.
+ * SearchPtr is linked into a list of searches in progress on canvasPtr,
+ * so that elements can safely be deleted while the search is in
+ * progress.
*
*--------------------------------------------------------------
*/
static int
-TagSearchScan(canvasPtr, tagObj, searchPtrPtr)
- TkCanvas *canvasPtr; /* Canvas whose items are to be
- * searched. */
- Tcl_Obj *tagObj; /* Object giving tag value. */
- TagSearch **searchPtrPtr; /* Record describing tag search;
- * will be initialized here. */
+TagSearchScan(
+ TkCanvas *canvasPtr, /* Canvas whose items are to be searched. */
+ Tcl_Obj *tagObj, /* Object giving tag value. */
+ TagSearch **searchPtrPtr) /* Record describing tag search; will be
+ * initialized here. */
{
- char *tag = Tcl_GetStringFromObj(tagObj,NULL);
+ char *tag = Tcl_GetString(tagObj);
int i;
TagSearch *searchPtr;
@@ -3165,61 +3026,78 @@ TagSearchScan(canvasPtr, tagObj, searchPtrPtr)
*/
if (*searchPtrPtr) {
- searchPtr = *searchPtrPtr;
+ searchPtr = *searchPtrPtr;
} else {
- /* Allocate primary search struct on first call */
- *searchPtrPtr = searchPtr = (TagSearch *) ckalloc(sizeof(TagSearch));
+ /*
+ * Allocate primary search struct on first call.
+ */
+
+ *searchPtrPtr = searchPtr = (TagSearch *) ckalloc(sizeof(TagSearch));
searchPtr->expr = NULL;
- /* Allocate buffer for rewritten tags (after de-escaping) */
- searchPtr->rewritebufferAllocated = 100;
- searchPtr->rewritebuffer =
- ckalloc(searchPtr->rewritebufferAllocated);
+ /*
+ * Allocate buffer for rewritten tags (after de-escaping).
+ */
+
+ searchPtr->rewritebufferAllocated = 100;
+ searchPtr->rewritebuffer = ckalloc(searchPtr->rewritebufferAllocated);
}
TagSearchExprInit(&(searchPtr->expr));
- /* How long is the tagOrId ? */
+ /*
+ * How long is the tagOrId?
+ */
+
searchPtr->stringLength = strlen(tag);
- /* Make sure there is enough buffer to hold rewritten tags */
+ /*
+ * Make sure there is enough buffer to hold rewritten tags.
+ */
+
if ((unsigned int)searchPtr->stringLength >=
searchPtr->rewritebufferAllocated) {
- searchPtr->rewritebufferAllocated = searchPtr->stringLength + 100;
- searchPtr->rewritebuffer =
- ckrealloc(searchPtr->rewritebuffer,
- searchPtr->rewritebufferAllocated);
+ searchPtr->rewritebufferAllocated = searchPtr->stringLength + 100;
+ searchPtr->rewritebuffer =
+ ckrealloc(searchPtr->rewritebuffer,
+ searchPtr->rewritebufferAllocated);
}
- /* Initialize search */
+ /*
+ * Initialize search.
+ */
+
searchPtr->canvasPtr = canvasPtr;
searchPtr->searchOver = 0;
- searchPtr->type = 0;
+ searchPtr->type = SEARCH_TYPE_EMPTY;
/*
- * Find the first matching item in one of several ways. If the tag
- * is a number then it selects the single item with the matching
- * identifier. In this case see if the item being requested is the
- * hot item, in which case the search can be skipped.
+ * Find the first matching item in one of several ways. If the tag is a
+ * number then it selects the single item with the matching identifier.
+ * In this case see if the item being requested is the hot item, in which
+ * case the search can be skipped.
*/
if (searchPtr->stringLength && isdigit(UCHAR(*tag))) {
- char *end;
+ char *end;
- searchPtr->id = strtoul(tag, &end, 0);
- if (*end == 0) {
- searchPtr->type = 1;
- return TCL_OK;
+ searchPtr->id = strtoul(tag, &end, 0);
+ if (*end == 0) {
+ searchPtr->type = SEARCH_TYPE_ID;
+ return TCL_OK;
}
}
/*
- * For all other tags and tag expressions convert to a UID.
- * This UID is kept forever, but this should be thought of
- * as a cache rather than as a memory leak.
+ * For all other tags and tag expressions convert to a UID. This UID is
+ * kept forever, but this should be thought of as a cache rather than as a
+ * memory leak.
*/
searchPtr->expr->uid = Tk_GetUid(tag);
- /* short circuit impossible searches for null tags */
+ /*
+ * Short circuit impossible searches for null tags.
+ */
+
if (searchPtr->stringLength == 0) {
return TCL_OK;
}
@@ -3228,55 +3106,58 @@ TagSearchScan(canvasPtr, tagObj, searchPtrPtr)
* Pre-scan tag for at least one unquoted "&&" "||" "^" "!"
* if not found then use string as simple tag
*/
+
for (i = 0; i < searchPtr->stringLength ; i++) {
- if (tag[i] == '"') {
- i++;
- for ( ; i < searchPtr->stringLength; i++) {
- if (tag[i] == '\\') {
- i++;
- continue;
- }
- if (tag[i] == '"') {
- break;
- }
- }
- } else {
- if ((tag[i] == '&' && tag[i+1] == '&')
- || (tag[i] == '|' && tag[i+1] == '|')
- || (tag[i] == '^')
- || (tag[i] == '!')) {
- searchPtr->type = 4;
- break;
- }
- }
+ if (tag[i] == '"') {
+ i++;
+ for ( ; i < searchPtr->stringLength; i++) {
+ if (tag[i] == '\\') {
+ i++;
+ continue;
+ }
+ if (tag[i] == '"') {
+ break;
+ }
+ }
+ } else if ((tag[i] == '&' && tag[i+1] == '&')
+ || (tag[i] == '|' && tag[i+1] == '|')
+ || (tag[i] == '^')
+ || (tag[i] == '!')) {
+ searchPtr->type = SEARCH_TYPE_EXPR;
+ break;
+ }
}
searchPtr->string = tag;
searchPtr->stringIndex = 0;
- if (searchPtr->type == 4) {
- /*
- * an operator was found in the prescan, so
- * now compile the tag expression into array of Tk_Uid
- * flagging any syntax errors found
- */
- if (TagSearchScanExpr(canvasPtr->interp, searchPtr, searchPtr->expr) != TCL_OK) {
- /* Syntax error in tag expression */
- /* Result message set by TagSearchScanExpr */
+ if (searchPtr->type == SEARCH_TYPE_EXPR) {
+ /*
+ * An operator was found in the prescan, so now compile the tag
+ * expression into array of Tk_Uid flagging any syntax errors found.
+ */
+
+ if (TagSearchScanExpr(canvasPtr->interp, searchPtr,
+ searchPtr->expr) != TCL_OK) {
+ /*
+ * Syntax error in tag expression. The result message was set by
+ * TagSearchScanExpr.
+ */
+
return TCL_ERROR;
}
searchPtr->expr->length = searchPtr->expr->index;
+ } else if (searchPtr->expr->uid == GetStaticUids()->allUid) {
+ /*
+ * All items match.
+ */
+
+ searchPtr->type = SEARCH_TYPE_ALL;
} else {
- if (searchPtr->expr->uid == GetStaticUids()->allUid) {
- /*
- * All items match.
- */
- searchPtr->type = 2;
- } else {
- /*
- * Optimized single-tag search
- */
- searchPtr->type = 3;
- }
+ /*
+ * Optimized single-tag search
+ */
+
+ searchPtr->type = SEARCH_TYPE_TAG;
}
return TCL_OK;
}
@@ -3286,24 +3167,26 @@ TagSearchScan(canvasPtr, tagObj, searchPtrPtr)
*
* TagSearchDestroy --
*
- * This procedure destroys any dynamic structures that
- * may have been allocated by TagSearchScan.
+ * This function destroys any dynamic structures that may have been
+ * allocated by TagSearchScan.
*
* Results:
+ * None
*
* Side effects:
+ * Deallocates memory.
*
*--------------------------------------------------------------
*/
static void
-TagSearchDestroy(searchPtr)
- TagSearch *searchPtr; /* Record describing tag search */
+TagSearchDestroy(
+ TagSearch *searchPtr) /* Record describing tag search */
{
if (searchPtr) {
- TagSearchExprDestroy(searchPtr->expr);
- ckfree((char *)searchPtr->rewritebuffer);
- ckfree((char *)searchPtr);
+ TagSearchExprDestroy(searchPtr->expr);
+ ckfree((char *)searchPtr->rewritebuffer);
+ ckfree((char *)searchPtr);
}
}
@@ -3312,16 +3195,14 @@ TagSearchDestroy(searchPtr)
*
* TagSearchScanExpr --
*
- * This recursive procedure is called to scan a tag expression
- * and compile it into an array of Tk_Uids.
+ * This recursive function is called to scan a tag expression and compile
+ * it into an array of Tk_Uids.
*
* Results:
- * The return value indicates if the tagOrId expression
- * was successfully scanned (syntax).
- * The information at *searchPtr is initialized
- * such that a call to TagSearchFirst, followed by
- * successive calls to TagSearchNext will return items
- * that match tag.
+ * The return value indicates if the tagOrId expression was successfully
+ * scanned (syntax). The information at *searchPtr is initialized such
+ * that a call to TagSearchFirst, followed by successive calls to
+ * TagSearchNext will return items that match tag.
*
* Side effects:
*
@@ -3329,216 +3210,233 @@ TagSearchDestroy(searchPtr)
*/
static int
-TagSearchScanExpr(interp, searchPtr, expr)
- Tcl_Interp *interp; /* Current interpreter. */
- TagSearch *searchPtr; /* Search data */
- TagSearchExpr *expr; /* compiled expression result */
+TagSearchScanExpr(
+ Tcl_Interp *interp, /* Current interpreter. */
+ TagSearch *searchPtr, /* Search data */
+ TagSearchExpr *expr) /* compiled expression result */
{
- int looking_for_tag; /* When true, scanner expects
- * next char(s) to be a tag,
- * else operand expected */
- int found_tag; /* One or more tags found */
- int found_endquote; /* For quoted tag string parsing */
- int negate_result; /* Pending negation of next tag value */
- char *tag; /* tag from tag expression string */
+ int looking_for_tag; /* When true, scanner expects next char(s) to
+ * be a tag, else operand expected */
+ int found_tag; /* One or more tags found */
+ int found_endquote; /* For quoted tag string parsing */
+ int negate_result; /* Pending negation of next tag value */
+ char *tag; /* Tag from tag expression string */
char c;
SearchUids *searchUids; /* Collection of uids for basic search
* expression terms. */
-
+
searchUids = GetStaticUids();
negate_result = 0;
found_tag = 0;
looking_for_tag = 1;
while (searchPtr->stringIndex < searchPtr->stringLength) {
- c = searchPtr->string[searchPtr->stringIndex++];
+ c = searchPtr->string[searchPtr->stringIndex++];
- if (expr->allocated == expr->index) {
- expr->allocated += 15;
+ /*
+ * Need two slots free at this point, not one. [Bug 2931374]
+ */
+
+ if (expr->index >= expr->allocated-1) {
+ expr->allocated += 15;
if (expr->uids) {
- expr->uids =
- (Tk_Uid *) ckrealloc((char *)(expr->uids),
- (expr->allocated)*sizeof(Tk_Uid));
+ expr->uids = (Tk_Uid *)
+ ckrealloc((char *)(expr->uids),
+ (expr->allocated)*sizeof(Tk_Uid));
} else {
- expr->uids =
- (Tk_Uid *) ckalloc((expr->allocated)*sizeof(Tk_Uid));
+ expr->uids = (Tk_Uid *)
+ ckalloc((expr->allocated)*sizeof(Tk_Uid));
}
- }
-
- if (looking_for_tag) {
-
- switch (c) {
- case ' ' : /* ignore unquoted whitespace */
- case '\t' :
- case '\n' :
- case '\r' :
- break;
-
- case '!' : /* negate next tag or subexpr */
- if (looking_for_tag > 1) {
- Tcl_AppendResult(interp,
- "Too many '!' in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
- }
- looking_for_tag++;
- negate_result = 1;
- break;
-
- case '(' : /* scan (negated) subexpr recursively */
- if (negate_result) {
- expr->uids[expr->index++] = searchUids->negparenUid;
- negate_result = 0;
- } else {
- expr->uids[expr->index++] = searchUids->parenUid;
+ }
+
+ if (looking_for_tag) {
+
+ switch (c) {
+ case ' ': /* ignore unquoted whitespace */
+ case '\t':
+ case '\n':
+ case '\r':
+ break;
+
+ case '!': /* negate next tag or subexpr */
+ if (looking_for_tag > 1) {
+ Tcl_AppendResult(interp,
+ "Too many '!' in tag search expression",
+ NULL);
+ return TCL_ERROR;
+ }
+ looking_for_tag++;
+ negate_result = 1;
+ break;
+
+ case '(': /* scan (negated) subexpr recursively */
+ if (negate_result) {
+ expr->uids[expr->index++] = searchUids->negparenUid;
+ negate_result = 0;
+ } else {
+ expr->uids[expr->index++] = searchUids->parenUid;
+ }
+ if (TagSearchScanExpr(interp, searchPtr, expr) != TCL_OK) {
+ /*
+ * Result string should be already set by nested call to
+ * tag_expr_scan()
+ */
+
+ return TCL_ERROR;
+ }
+ looking_for_tag = 0;
+ found_tag = 1;
+ break;
+
+ case '"': /* quoted tag string */
+ if (negate_result) {
+ expr->uids[expr->index++] = searchUids->negtagvalUid;
+ negate_result = 0;
+ } else {
+ expr->uids[expr->index++] = searchUids->tagvalUid;
+ }
+ tag = searchPtr->rewritebuffer;
+ found_endquote = 0;
+ while (searchPtr->stringIndex < searchPtr->stringLength) {
+ c = searchPtr->string[searchPtr->stringIndex++];
+ if (c == '\\') {
+ c = searchPtr->string[searchPtr->stringIndex++];
}
- if (TagSearchScanExpr(interp, searchPtr, expr) != TCL_OK) {
- /* Result string should be already set
- * by nested call to tag_expr_scan() */
- return TCL_ERROR;
+ if (c == '"') {
+ found_endquote = 1;
+ break;
}
- looking_for_tag = 0;
- found_tag = 1;
- break;
-
- case '"' : /* quoted tag string */
- if (negate_result) {
- expr->uids[expr->index++] = searchUids->negtagvalUid;
- negate_result = 0;
- } else {
- expr->uids[expr->index++] = searchUids->tagvalUid;
+ *tag++ = c;
+ }
+ if (! found_endquote) {
+ Tcl_AppendResult(interp,
+ "Missing endquote in tag search expression",
+ NULL);
+ return TCL_ERROR;
+ }
+ if (! (tag - searchPtr->rewritebuffer)) {
+ Tcl_AppendResult(interp,
+ "Null quoted tag string in tag search expression",
+ NULL);
+ return TCL_ERROR;
+ }
+ *tag++ = '\0';
+ expr->uids[expr->index++] =
+ Tk_GetUid(searchPtr->rewritebuffer);
+ looking_for_tag = 0;
+ found_tag = 1;
+ break;
+
+ case '&': /* illegal chars when looking for tag */
+ case '|':
+ case '^':
+ case ')':
+ Tcl_AppendResult(interp,
+ "Unexpected operator in tag search expression",
+ NULL);
+ return TCL_ERROR;
+
+ default: /* unquoted tag string */
+ if (negate_result) {
+ expr->uids[expr->index++] = searchUids->negtagvalUid;
+ negate_result = 0;
+ } else {
+ expr->uids[expr->index++] = searchUids->tagvalUid;
+ }
+ tag = searchPtr->rewritebuffer;
+ *tag++ = c;
+
+ /*
+ * Copy rest of tag, including any embedded whitespace.
+ */
+
+ while (searchPtr->stringIndex < searchPtr->stringLength) {
+ c = searchPtr->string[searchPtr->stringIndex];
+ if (c == '!' || c == '&' || c == '|' || c == '^'
+ || c == '(' || c == ')' || c == '"') {
+ break;
}
- tag = searchPtr->rewritebuffer;
- found_endquote = 0;
- while (searchPtr->stringIndex < searchPtr->stringLength) {
- c = searchPtr->string[searchPtr->stringIndex++];
- if (c == '\\') {
- c = searchPtr->string[searchPtr->stringIndex++];
- }
- if (c == '"') {
- found_endquote = 1;
- break;
- }
- *tag++ = c;
- }
- if (! found_endquote) {
- Tcl_AppendResult(interp,
- "Missing endquote in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (! (tag - searchPtr->rewritebuffer)) {
- Tcl_AppendResult(interp,
- "Null quoted tag string in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
- }
- *tag++ = '\0';
- expr->uids[expr->index++] =
- Tk_GetUid(searchPtr->rewritebuffer);
- looking_for_tag = 0;
- found_tag = 1;
- break;
-
- case '&' : /* illegal chars when looking for tag */
- case '|' :
- case '^' :
- case ')' :
- Tcl_AppendResult(interp,
- "Unexpected operator in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
-
- default : /* unquoted tag string */
- if (negate_result) {
- expr->uids[expr->index++] = searchUids->negtagvalUid;
- negate_result = 0;
- } else {
- expr->uids[expr->index++] = searchUids->tagvalUid;
- }
- tag = searchPtr->rewritebuffer;
- *tag++ = c;
- /* copy rest of tag, including any embedded whitespace */
- while (searchPtr->stringIndex < searchPtr->stringLength) {
- c = searchPtr->string[searchPtr->stringIndex];
- if (c == '!' || c == '&' || c == '|' || c == '^'
- || c == '(' || c == ')' || c == '"') {
- break;
- }
- *tag++ = c;
- searchPtr->stringIndex++;
- }
- /* remove trailing whitespace */
- while (1) {
- c = *--tag;
- /* there must have been one non-whitespace char,
- * so this will terminate */
- if (c != ' ' && c != '\t' && c != '\n' && c != '\r') {
- break;
- }
- }
- *++tag = '\0';
- expr->uids[expr->index++] =
- Tk_GetUid(searchPtr->rewritebuffer);
- looking_for_tag = 0;
- found_tag = 1;
- }
-
- } else { /* ! looking_for_tag */
-
- switch (c) {
- case ' ' : /* ignore whitespace */
- case '\t' :
- case '\n' :
- case '\r' :
- break;
-
- case '&' : /* AND operator */
- c = searchPtr->string[searchPtr->stringIndex++];
- if (c != '&') {
- Tcl_AppendResult(interp,
- "Singleton '&' in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
- }
- expr->uids[expr->index++] = searchUids->andUid;
- looking_for_tag = 1;
- break;
-
- case '|' : /* OR operator */
- c = searchPtr->string[searchPtr->stringIndex++];
- if (c != '|') {
- Tcl_AppendResult(interp,
- "Singleton '|' in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
- }
- expr->uids[expr->index++] = searchUids->orUid;
- looking_for_tag = 1;
- break;
-
- case '^' : /* XOR operator */
- expr->uids[expr->index++] = searchUids->xorUid;
- looking_for_tag = 1;
- break;
-
- case ')' : /* end subexpression */
- expr->uids[expr->index++] = searchUids->endparenUid;
- goto breakwhile;
-
- default : /* syntax error */
- Tcl_AppendResult(interp,
- "Invalid boolean operator in tag search expression",
- (char *) NULL);
- return TCL_ERROR;
- }
- }
- }
- breakwhile:
+ *tag++ = c;
+ searchPtr->stringIndex++;
+ }
+
+ /*
+ * Remove trailing whitespace.
+ */
+
+ while (1) {
+ c = *--tag;
+
+ /*
+ * There must have been one non-whitespace char, so this
+ * will terminate.
+ */
+
+ if (c != ' ' && c != '\t' && c != '\n' && c != '\r') {
+ break;
+ }
+ }
+ *++tag = '\0';
+ expr->uids[expr->index++] =
+ Tk_GetUid(searchPtr->rewritebuffer);
+ looking_for_tag = 0;
+ found_tag = 1;
+ }
+
+ } else { /* ! looking_for_tag */
+ switch (c) {
+ case ' ': /* ignore whitespace */
+ case '\t':
+ case '\n':
+ case '\r':
+ break;
+
+ case '&': /* AND operator */
+ c = searchPtr->string[searchPtr->stringIndex++];
+ if (c != '&') {
+ Tcl_AppendResult(interp,
+ "Singleton '&' in tag search expression",
+ NULL);
+ return TCL_ERROR;
+ }
+ expr->uids[expr->index++] = searchUids->andUid;
+ looking_for_tag = 1;
+ break;
+
+ case '|': /* OR operator */
+ c = searchPtr->string[searchPtr->stringIndex++];
+ if (c != '|') {
+ Tcl_AppendResult(interp,
+ "Singleton '|' in tag search expression",
+ NULL);
+ return TCL_ERROR;
+ }
+ expr->uids[expr->index++] = searchUids->orUid;
+ looking_for_tag = 1;
+ break;
+
+ case '^' : /* XOR operator */
+ expr->uids[expr->index++] = searchUids->xorUid;
+ looking_for_tag = 1;
+ break;
+
+ case ')' : /* end subexpression */
+ expr->uids[expr->index++] = searchUids->endparenUid;
+ goto breakwhile;
+
+ default: /* syntax error */
+ Tcl_AppendResult(interp,
+ "Invalid boolean operator in tag search expression",
+ NULL);
+ return TCL_ERROR;
+ }
+ }
+ }
+
+ breakwhile:
if (found_tag && ! looking_for_tag) {
- return TCL_OK;
+ return TCL_OK;
}
- Tcl_AppendResult(interp, "Missing tag in tag search expression",
- (char *) NULL);
+ Tcl_AppendResult(interp, "Missing tag in tag search expression", NULL);
return TCL_ERROR;
}
@@ -3547,11 +3445,11 @@ TagSearchScanExpr(interp, searchPtr, expr)
*
* TagSearchEvalExpr --
*
- * This recursive procedure is called to eval a tag expression.
+ * This recursive function is called to eval a tag expression.
*
* Results:
- * The return value indicates if the tagOrId expression
- * successfully matched the tags of the current item.
+ * The return value indicates if the tagOrId expression successfully
+ * matched the tags of the current item.
*
* Side effects:
*
@@ -3559,18 +3457,17 @@ TagSearchScanExpr(interp, searchPtr, expr)
*/
static int
-TagSearchEvalExpr(expr, itemPtr)
- TagSearchExpr *expr; /* Search expression */
- Tk_Item *itemPtr; /* Item being test for match */
+TagSearchEvalExpr(
+ TagSearchExpr *expr, /* Search expression */
+ Tk_Item *itemPtr) /* Item being test for match */
{
- int looking_for_tag; /* When true, scanner expects
- * next char(s) to be a tag,
- * else operand expected */
- int negate_result; /* Pending negation of next tag value */
+ int looking_for_tag; /* When true, scanner expects next char(s) to
+ * be a tag, else operand expected. */
+ int negate_result; /* Pending negation of next tag value */
Tk_Uid uid;
Tk_Uid *tagPtr;
int count;
- int result; /* Value of expr so far */
+ int result; /* Value of expr so far */
int parendepth;
SearchUids *searchUids; /* Collection of uids for basic search
* expression terms. */
@@ -3581,77 +3478,84 @@ TagSearchEvalExpr(expr, itemPtr)
negate_result = 0;
looking_for_tag = 1;
while (expr->index < expr->length) {
- uid = expr->uids[expr->index++];
- if (looking_for_tag) {
- if (uid == searchUids->tagvalUid) {
+ uid = expr->uids[expr->index++];
+ if (looking_for_tag) {
+ if (uid == searchUids->tagvalUid) {
/*
- * assert(expr->index < expr->length);
+ * assert(expr->index < expr->length);
*/
- uid = expr->uids[expr->index++];
- result = 0;
- /*
- * set result 1 if tag is found in item's tags
- */
- for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
- count > 0; tagPtr++, count--) {
- if (*tagPtr == uid) {
- result = 1;
- break;
- }
- }
-
- } else if (uid == searchUids->negtagvalUid) {
- negate_result = ! negate_result;
+ uid = expr->uids[expr->index++];
+ result = 0;
+
+ /*
+ * set result 1 if tag is found in item's tags
+ */
+
+ for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
+ count > 0; tagPtr++, count--) {
+ if (*tagPtr == uid) {
+ result = 1;
+ break;
+ }
+ }
+
+ } else if (uid == searchUids->negtagvalUid) {
+ negate_result = ! negate_result;
/*
- * assert(expr->index < expr->length);
+ * assert(expr->index < expr->length);
*/
- uid = expr->uids[expr->index++];
- result = 0;
- /*
- * set result 1 if tag is found in item's tags
- */
- for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
- count > 0; tagPtr++, count--) {
- if (*tagPtr == uid) {
- result = 1;
- break;
- }
- }
-
- } else if (uid == searchUids->parenUid) {
- /*
- * evaluate subexpressions with recursion
- */
- result = TagSearchEvalExpr(expr, itemPtr);
-
- } else if (uid == searchUids->negparenUid) {
- negate_result = ! negate_result;
- /*
- * evaluate subexpressions with recursion
- */
- result = TagSearchEvalExpr(expr, itemPtr);
+ uid = expr->uids[expr->index++];
+ result = 0;
+
+ /*
+ * set result 1 if tag is found in item's tags
+ */
+
+ for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
+ count > 0; tagPtr++, count--) {
+ if (*tagPtr == uid) {
+ result = 1;
+ break;
+ }
+ }
+
+ } else if (uid == searchUids->parenUid) {
+ /*
+ * Evaluate subexpressions with recursion
+ */
+
+ result = TagSearchEvalExpr(expr, itemPtr);
+
+ } else if (uid == searchUids->negparenUid) {
+ negate_result = ! negate_result;
+
+ /*
+ * Evaluate subexpressions with recursion
+ */
+
+ result = TagSearchEvalExpr(expr, itemPtr);
/*
- * } else {
- * assert(0);
+ * } else {
+ * assert(0);
*/
- }
- if (negate_result) {
- result = ! result;
- negate_result = 0;
- }
- looking_for_tag = 0;
- } else { /* ! looking_for_tag */
- if (((uid == searchUids->andUid) && (!result)) ||
+ }
+ if (negate_result) {
+ result = ! result;
+ negate_result = 0;
+ }
+ looking_for_tag = 0;
+ } else { /* ! looking_for_tag */
+ if (((uid == searchUids->andUid) && (!result)) ||
((uid == searchUids->orUid) && result)) {
- /*
- * short circuit expression evaluation
- *
- * if result before && is 0, or result before || is 1,
- * then the expression is decided and no further
- * evaluation is needed.
- */
-
- parendepth = 0;
+ /*
+ * Short circuit expression evaluation.
+ *
+ * if result before && is 0, or result before || is 1, then
+ * the expression is decided and no further evaluation is
+ * needed.
+ */
+
+ parendepth = 0;
while (expr->index < expr->length) {
uid = expr->uids[expr->index++];
if (uid == searchUids->tagvalUid ||
@@ -3663,7 +3567,7 @@ TagSearchEvalExpr(expr, itemPtr)
uid == searchUids->negparenUid) {
parendepth++;
continue;
- }
+ }
if (uid == searchUids->endparenUid) {
parendepth--;
if (parendepth < 0) {
@@ -3671,24 +3575,24 @@ TagSearchEvalExpr(expr, itemPtr)
}
}
}
- return result;
+ return result;
- } else if (uid == searchUids->xorUid) {
- /*
- * if the previous result was 1
- * then negate the next result
- */
- negate_result = result;
+ } else if (uid == searchUids->xorUid) {
+ /*
+ * If the previous result was 1 then negate the next result.
+ */
- } else if (uid == searchUids->endparenUid) {
- return result;
+ negate_result = result;
+
+ } else if (uid == searchUids->endparenUid) {
+ return result;
/*
- * } else {
- * assert(0);
+ * } else {
+ * assert(0);
*/
- }
- looking_for_tag = 1;
- }
+ }
+ looking_for_tag = 1;
+ }
}
/*
* assert(! looking_for_tag);
@@ -3701,104 +3605,103 @@ TagSearchEvalExpr(expr, itemPtr)
*
* TagSearchFirst --
*
- * This procedure is called to get the first item
- * item that matches a preestablished search predicate
- * that was set by TagSearchScan.
+ * This function is called to get the first item item that matches a
+ * preestablished search predicate that was set by TagSearchScan.
*
* Results:
- * The return value is a pointer to the first item, or NULL
- * if there is no such item. The information at *searchPtr
- * is updated such that successive calls to TagSearchNext
- * will return successive items.
+ * The return value is a pointer to the first item, or NULL if there is
+ * no such item. The information at *searchPtr is updated such that
+ * successive calls to TagSearchNext will return successive items.
*
* Side effects:
- * SearchPtr is linked into a list of searches in progress
- * on canvasPtr, so that elements can safely be deleted
- * while the search is in progress.
+ * SearchPtr is linked into a list of searches in progress on canvasPtr,
+ * so that elements can safely be deleted while the search is in
+ * progress.
*
*--------------------------------------------------------------
*/
static Tk_Item *
-TagSearchFirst(searchPtr)
- TagSearch *searchPtr; /* Record describing tag search */
+TagSearchFirst(
+ TagSearch *searchPtr) /* Record describing tag search */
{
Tk_Item *itemPtr, *lastPtr;
Tk_Uid uid, *tagPtr;
int count;
- /* short circuit impossible searches for null tags */
+ /*
+ * Short circuit impossible searches for null tags.
+ */
+
if (searchPtr->stringLength == 0) {
- return NULL;
+ return NULL;
}
/*
- * Find the first matching item in one of several ways. If the tag
- * is a number then it selects the single item with the matching
- * identifier. In this case see if the item being requested is the
- * hot item, in which case the search can be skipped.
+ * Find the first matching item in one of several ways. If the tag is a
+ * number then it selects the single item with the matching identifier.
+ * In this case see if the item being requested is the hot item, in which
+ * case the search can be skipped.
*/
- if (searchPtr->type == 1) {
- Tcl_HashEntry *entryPtr;
-
- itemPtr = searchPtr->canvasPtr->hotPtr;
- lastPtr = searchPtr->canvasPtr->hotPrevPtr;
- if ((itemPtr == NULL) || (itemPtr->id != searchPtr->id) ||
- (lastPtr == NULL) || (lastPtr->nextPtr != itemPtr)) {
- entryPtr = Tcl_FindHashEntry(&searchPtr->canvasPtr->idTable,
- (char *) searchPtr->id);
- if (entryPtr != NULL) {
- itemPtr = (Tk_Item *)Tcl_GetHashValue(entryPtr);
- lastPtr = itemPtr->prevPtr;
- } else {
- lastPtr = itemPtr = NULL;
- }
- }
- searchPtr->lastPtr = lastPtr;
- searchPtr->searchOver = 1;
- searchPtr->canvasPtr->hotPtr = itemPtr;
- searchPtr->canvasPtr->hotPrevPtr = lastPtr;
- return itemPtr;
- }
-
- if (searchPtr->type == 2) {
-
- /*
- * All items match.
- */
-
- searchPtr->lastPtr = NULL;
- searchPtr->currentPtr = searchPtr->canvasPtr->firstItemPtr;
- return searchPtr->canvasPtr->firstItemPtr;
- }
-
- if (searchPtr->type == 3) {
-
- /*
- * Optimized single-tag search
- */
-
- uid = searchPtr->expr->uid;
- for (lastPtr = NULL, itemPtr = searchPtr->canvasPtr->firstItemPtr;
- itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
- for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
- count > 0; tagPtr++, count--) {
- if (*tagPtr == uid) {
- searchPtr->lastPtr = lastPtr;
- searchPtr->currentPtr = itemPtr;
- return itemPtr;
- }
- }
- }
+ if (searchPtr->type == SEARCH_TYPE_ID) {
+ Tcl_HashEntry *entryPtr;
+
+ itemPtr = searchPtr->canvasPtr->hotPtr;
+ lastPtr = searchPtr->canvasPtr->hotPrevPtr;
+ if ((itemPtr == NULL) || (itemPtr->id != searchPtr->id)
+ || (lastPtr == NULL) || (lastPtr->nextPtr != itemPtr)) {
+ entryPtr = Tcl_FindHashEntry(&searchPtr->canvasPtr->idTable,
+ (char *) INT2PTR(searchPtr->id));
+ if (entryPtr != NULL) {
+ itemPtr = (Tk_Item *)Tcl_GetHashValue(entryPtr);
+ lastPtr = itemPtr->prevPtr;
+ } else {
+ lastPtr = itemPtr = NULL;
+ }
+ }
+ searchPtr->lastPtr = lastPtr;
+ searchPtr->searchOver = 1;
+ searchPtr->canvasPtr->hotPtr = itemPtr;
+ searchPtr->canvasPtr->hotPrevPtr = lastPtr;
+ return itemPtr;
+ }
+
+ if (searchPtr->type == SEARCH_TYPE_ALL) {
+ /*
+ * All items match.
+ */
+
+ searchPtr->lastPtr = NULL;
+ searchPtr->currentPtr = searchPtr->canvasPtr->firstItemPtr;
+ return searchPtr->canvasPtr->firstItemPtr;
+ }
+
+ if (searchPtr->type == SEARCH_TYPE_TAG) {
+ /*
+ * Optimized single-tag search
+ */
+
+ uid = searchPtr->expr->uid;
+ for (lastPtr = NULL, itemPtr = searchPtr->canvasPtr->firstItemPtr;
+ itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
+ for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
+ count > 0; tagPtr++, count--) {
+ if (*tagPtr == uid) {
+ searchPtr->lastPtr = lastPtr;
+ searchPtr->currentPtr = itemPtr;
+ return itemPtr;
+ }
+ }
+ }
} else {
/*
- * None of the above. Search for an item matching the tag expression.
+ * None of the above. Search for an item matching the tag expression.
*/
for (lastPtr = NULL, itemPtr = searchPtr->canvasPtr->firstItemPtr;
- itemPtr != NULL; lastPtr=itemPtr, itemPtr=itemPtr->nextPtr) {
+ itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
searchPtr->expr->index = 0;
if (TagSearchEvalExpr(searchPtr->expr, itemPtr)) {
searchPtr->lastPtr = lastPtr;
@@ -3817,89 +3720,86 @@ TagSearchFirst(searchPtr)
*
* TagSearchNext --
*
- * This procedure returns successive items that match a given
- * tag; it should be called only after TagSearchFirst has been
- * used to begin a search.
+ * This function returns successive items that match a given tag; it
+ * should be called only after TagSearchFirst has been used to begin a
+ * search.
*
* Results:
- * The return value is a pointer to the next item that matches
- * the tag expr specified to TagSearchScan, or NULL if no such
- * item exists. *SearchPtr is updated so that the next call
- * to this procedure will return the next item.
+ * The return value is a pointer to the next item that matches the tag
+ * expr specified to TagSearchScan, or NULL if no such item exists.
+ * *SearchPtr is updated so that the next call to this function will
+ * return the next item.
*
* Side effects:
- * None.
+ * None.
*
*--------------------------------------------------------------
*/
static Tk_Item *
-TagSearchNext(searchPtr)
- TagSearch *searchPtr; /* Record describing search in
- * progress. */
+TagSearchNext(
+ TagSearch *searchPtr) /* Record describing search in progress. */
{
Tk_Item *itemPtr, *lastPtr;
Tk_Uid uid, *tagPtr;
int count;
/*
- * Find next item in list (this may not actually be a suitable
- * one to return), and return if there are no items left.
+ * Find next item in list (this may not actually be a suitable one to
+ * return), and return if there are no items left.
*/
lastPtr = searchPtr->lastPtr;
if (lastPtr == NULL) {
- itemPtr = searchPtr->canvasPtr->firstItemPtr;
+ itemPtr = searchPtr->canvasPtr->firstItemPtr;
} else {
- itemPtr = lastPtr->nextPtr;
+ itemPtr = lastPtr->nextPtr;
}
if ((itemPtr == NULL) || (searchPtr->searchOver)) {
- searchPtr->searchOver = 1;
- return NULL;
+ searchPtr->searchOver = 1;
+ return NULL;
}
if (itemPtr != searchPtr->currentPtr) {
- /*
- * The structure of the list has changed. Probably the
- * previously-returned item was removed from the list.
- * In this case, don't advance lastPtr; just return
- * its new successor (i.e. do nothing here).
- */
+ /*
+ * The structure of the list has changed. Probably the previously-
+ * returned item was removed from the list. In this case, don't
+ * advance lastPtr; just return its new successor (i.e. do nothing
+ * here).
+ */
} else {
- lastPtr = itemPtr;
- itemPtr = lastPtr->nextPtr;
+ lastPtr = itemPtr;
+ itemPtr = lastPtr->nextPtr;
}
- if (searchPtr->type == 2) {
-
- /*
- * All items match.
- */
+ if (searchPtr->type == SEARCH_TYPE_ALL) {
+ /*
+ * All items match.
+ */
- searchPtr->lastPtr = lastPtr;
- searchPtr->currentPtr = itemPtr;
- return itemPtr;
+ searchPtr->lastPtr = lastPtr;
+ searchPtr->currentPtr = itemPtr;
+ return itemPtr;
}
- if (searchPtr->type == 3) {
-
- /*
- * Optimized single-tag search
- */
+ if (searchPtr->type == SEARCH_TYPE_TAG) {
+ /*
+ * Optimized single-tag search
+ */
- uid = searchPtr->expr->uid;
- for ( ; itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
- for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
- count > 0; tagPtr++, count--) {
- if (*tagPtr == uid) {
- searchPtr->lastPtr = lastPtr;
- searchPtr->currentPtr = itemPtr;
- return itemPtr;
- }
- }
- }
- searchPtr->lastPtr = lastPtr;
- searchPtr->searchOver = 1;
- return NULL;
+ uid = searchPtr->expr->uid;
+ for (; itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
+ for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
+ count > 0; tagPtr++, count--) {
+ if (*tagPtr == uid) {
+ searchPtr->lastPtr = lastPtr;
+ searchPtr->currentPtr = itemPtr;
+ return itemPtr;
+ }
+ }
+ }
+ searchPtr->lastPtr = lastPtr;
+ searchPtr->searchOver = 1;
+ return NULL;
}
/*
@@ -3907,12 +3807,12 @@ TagSearchNext(searchPtr)
*/
for ( ; itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
- searchPtr->expr->index = 0;
- if (TagSearchEvalExpr(searchPtr->expr, itemPtr)) {
- searchPtr->lastPtr = lastPtr;
- searchPtr->currentPtr = itemPtr;
- return itemPtr;
- }
+ searchPtr->expr->index = 0;
+ if (TagSearchEvalExpr(searchPtr->expr, itemPtr)) {
+ searchPtr->lastPtr = lastPtr;
+ searchPtr->currentPtr = itemPtr;
+ return itemPtr;
+ }
}
searchPtr->lastPtr = lastPtr;
searchPtr->searchOver = 1;
@@ -3925,29 +3825,27 @@ TagSearchNext(searchPtr)
*
* DoItem --
*
- * This is a utility procedure called by FindItems. It
- * either adds itemPtr's id to the result forming in interp,
- * or it adds a new tag to itemPtr, depending on the value
- * of tag.
+ * This is a utility function called by FindItems. It either adds
+ * itemPtr's id to the result forming in interp, or it adds a new tag to
+ * itemPtr, depending on the value of tag.
*
* Results:
* None.
*
* Side effects:
- * If tag is NULL then itemPtr's id is added as a list element
- * to the interp's result; otherwise tag is added to itemPtr's
- * list of tags.
+ * If tag is NULL then itemPtr's id is added as a list element to the
+ * interp's result; otherwise tag is added to itemPtr's list of tags.
*
*--------------------------------------------------------------
*/
static void
-DoItem(interp, itemPtr, tag)
- Tcl_Interp *interp; /* Interpreter in which to (possibly)
- * record item id. */
- Tk_Item *itemPtr; /* Item to (possibly) modify. */
- Tk_Uid tag; /* Tag to add to those already
- * present for item, or NULL. */
+DoItem(
+ Tcl_Interp *interp, /* Interpreter in which to (possibly) record
+ * item id. */
+ Tk_Item *itemPtr, /* Item to (possibly) modify. */
+ Tk_Uid tag) /* Tag to add to those already present for
+ * item, or NULL. */
{
Tk_Uid *tagPtr;
int count;
@@ -3972,18 +3870,17 @@ DoItem(interp, itemPtr, tag)
}
/*
- * Grow the tag space if there's no more room left in the current
- * block.
+ * Grow the tag space if there's no more room left in the current block.
*/
if (itemPtr->tagSpace == itemPtr->numTags) {
Tk_Uid *newTagPtr;
itemPtr->tagSpace += 5;
- newTagPtr = (Tk_Uid *) ckalloc((unsigned)
- (itemPtr->tagSpace * sizeof(Tk_Uid)));
- memcpy((VOID *) newTagPtr, (VOID *) itemPtr->tagPtr,
- (itemPtr->numTags * sizeof(Tk_Uid)));
+ newTagPtr = (Tk_Uid *)
+ ckalloc((unsigned) (itemPtr->tagSpace * sizeof(Tk_Uid)));
+ memcpy((void *) newTagPtr, itemPtr->tagPtr,
+ itemPtr->numTags * sizeof(Tk_Uid));
if (itemPtr->tagPtr != itemPtr->staticTagSpace) {
ckfree((char *) itemPtr->tagPtr);
}
@@ -4004,57 +3901,51 @@ DoItem(interp, itemPtr, tag)
*
* FindItems --
*
- * This procedure does all the work of implementing the
- * "find" and "addtag" options of the canvas widget command,
- * which locate items that have certain features (location,
- * tags, position in display list, etc.).
+ * This function does all the work of implementing the "find" and
+ * "addtag" options of the canvas widget command, which locate items that
+ * have certain features (location, tags, position in display list, etc.)
*
* Results:
- * A standard Tcl return value. If newTag is NULL, then a
- * list of ids from all the items that match argc/argv is
- * returned in the interp's result. If newTag is NULL, then
- * the normal the interp's result is an empty string. If an error
- * occurs, then the interp's result will hold an error message.
+ * A standard Tcl return value. If newTag is NULL, then a list of ids
+ * from all the items that match objc/objv is returned in the interp's
+ * result. If newTag is NULL, then the normal the interp's result is an
+ * empty string. If an error occurs, then the interp's result will hold
+ * an error message.
*
* Side effects:
- * If newTag is non-NULL, then all the items that match the
- * information in argc/argv have that tag added to their
- * lists of tags.
+ * If newTag is non-NULL, then all the items that match the information
+ * in objc/objv have that tag added to their lists of tags.
*
*--------------------------------------------------------------
*/
static int
-#ifdef USE_OLD_TAG_SEARCH
-FindItems(interp, canvasPtr, argc, argv, newTag, first)
-#else /* USE_OLD_TAG_SEARCH */
-FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
-#endif /* USE_OLD_TAG_SEARCH */
- Tcl_Interp *interp; /* Interpreter for error reporting. */
- TkCanvas *canvasPtr; /* Canvas whose items are to be
- * searched. */
- int argc; /* Number of entries in argv. Must be
- * greater than zero. */
- Tcl_Obj *CONST *argv; /* Arguments that describe what items
- * to search for (see user doc on
- * "find" and "addtag" options). */
- Tcl_Obj *newTag; /* If non-NULL, gives new tag to set
- * on all found items; if NULL, then
- * ids of found items are returned
- * in the interp's result. */
- int first; /* For error messages: gives number
- * of elements of argv which are already
- * handled. */
+FindItems(
+ Tcl_Interp *interp, /* Interpreter for error reporting. */
+ TkCanvas *canvasPtr, /* Canvas whose items are to be searched. */
+ int objc, /* Number of entries in argv. Must be greater
+ * than zero. */
+ Tcl_Obj *CONST *objv, /* Arguments that describe what items to
+ * search for (see user doc on "find" and
+ * "addtag" options). */
+ Tcl_Obj *newTag, /* If non-NULL, gives new tag to set on all
+ * found items; if NULL, then ids of found
+ * items are returned in the interp's
+ * result. */
+ int first /* For error messages: gives number of
+ * elements of objv which are already
+ * handled. */
#ifndef USE_OLD_TAG_SEARCH
- TagSearch **searchPtrPtr; /* From CanvasWidgetCmd local vars*/
+ ,TagSearch **searchPtrPtr /* From CanvasWidgetCmd local vars*/
#endif /* not USE_OLD_TAG_SEARCH */
+ )
{
#ifdef USE_OLD_TAG_SEARCH
TagSearch search;
#endif /* USE_OLD_TAG_SEARCH */
Tk_Item *itemPtr;
Tk_Uid uid;
- int index;
+ int index, result;
static CONST char *optionStrings[] = {
"above", "all", "below", "closest",
"enclosed", "overlapping", "withtag", NULL
@@ -4065,41 +3956,34 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
};
if (newTag != NULL) {
- uid = Tk_GetUid(Tcl_GetStringFromObj(newTag, NULL));
+ uid = Tk_GetUid(Tcl_GetString(newTag));
} else {
uid = NULL;
}
- if (Tcl_GetIndexFromObj(interp, argv[first], optionStrings, "search command", 0,
- &index) != TCL_OK) {
+ if (Tcl_GetIndexFromObj(interp, objv[first], optionStrings,
+ "search command", 0, &index) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum options) index) {
- case CANV_ABOVE: {
+ case CANV_ABOVE: {
Tk_Item *lastPtr = NULL;
- if (argc != first+2) {
- Tcl_WrongNumArgs(interp, first+1, argv, "tagOrId");
+
+ if (objc != first+2) {
+ Tcl_WrongNumArgs(interp, first+1, objv, "tagOrId");
return TCL_ERROR;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, argv[first+1], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if (TagSearchScan(canvasPtr, argv[first+1], searchPtrPtr) != TCL_OK) {
- return TCL_ERROR;
- }
- for (itemPtr = TagSearchFirst(*searchPtrPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(*searchPtrPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr,
+ return TCL_ERROR) {
lastPtr = itemPtr;
}
if ((lastPtr != NULL) && (lastPtr->nextPtr != NULL)) {
DoItem(interp, lastPtr->nextPtr, uid);
}
break;
- }
- case CANV_ALL: {
- if (argc != first+1) {
- Tcl_WrongNumArgs(interp, first+1, argv, (char *) NULL);
+ }
+ case CANV_ALL:
+ if (objc != first+1) {
+ Tcl_WrongNumArgs(interp, first+1, objv, NULL);
return TCL_ERROR;
}
@@ -4108,52 +3992,43 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
DoItem(interp, itemPtr, uid);
}
break;
- }
- case CANV_BELOW: {
- Tk_Item *itemPtr;
- if (argc != first+2) {
- Tcl_WrongNumArgs(interp, first+1, argv, "tagOrId");
+ case CANV_BELOW:
+ if (objc != first+2) {
+ Tcl_WrongNumArgs(interp, first+1, objv, "tagOrId");
return TCL_ERROR;
}
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, argv[first+1], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if (TagSearchScan(canvasPtr, argv[first+1], searchPtrPtr) != TCL_OK) {
- return TCL_ERROR;
- }
- itemPtr = TagSearchFirst(*searchPtrPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ FIRST_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr,
+ return TCL_ERROR);
if (itemPtr != NULL) {
if (itemPtr->prevPtr != NULL) {
DoItem(interp, itemPtr->prevPtr, uid);
}
}
break;
- }
- case CANV_CLOSEST: {
+ case CANV_CLOSEST: {
double closestDist;
Tk_Item *startPtr, *closestPtr;
double coords[2], halo;
int x1, y1, x2, y2;
- if ((argc < first+3) || (argc > first+5)) {
- Tcl_WrongNumArgs(interp, first+1, argv, "x y ?halo? ?start?");
+ if ((objc < first+3) || (objc > first+5)) {
+ Tcl_WrongNumArgs(interp, first+1, objv, "x y ?halo? ?start?");
return TCL_ERROR;
}
- if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, argv[first+1],
+ if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[first+1],
&coords[0]) != TCL_OK) || (Tk_CanvasGetCoordFromObj(interp,
- (Tk_Canvas) canvasPtr, argv[first+2], &coords[1]) != TCL_OK)) {
+ (Tk_Canvas) canvasPtr, objv[first+2], &coords[1]) != TCL_OK)) {
return TCL_ERROR;
}
- if (argc > first+3) {
- if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, argv[first+3],
+ if (objc > first+3) {
+ if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[first+3],
&halo) != TCL_OK) {
return TCL_ERROR;
}
if (halo < 0.0) {
Tcl_AppendResult(interp, "can't have negative halo value \"",
- Tcl_GetString(argv[3]), "\"", (char *) NULL);
+ Tcl_GetString(objv[3]), "\"", NULL);
return TCL_ERROR;
}
} else {
@@ -4165,31 +4040,26 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
*/
startPtr = canvasPtr->firstItemPtr;
- if (argc == first+5) {
-#ifdef USE_OLD_TAG_SEARCH
- itemPtr = StartTagSearch(canvasPtr, argv[first+4], &search);
-#else /* USE_OLD_TAG_SEARCH */
- if (TagSearchScan(canvasPtr, argv[first+4], searchPtrPtr) != TCL_OK) {
- return TCL_ERROR;
- }
- itemPtr = TagSearchFirst(*searchPtrPtr);
-#endif /* USE_OLD_TAG_SEARCH */
+ if (objc == first+5) {
+ FIRST_CANVAS_ITEM_MATCHING(objv[first+4], searchPtrPtr,
+ return TCL_ERROR);
if (itemPtr != NULL) {
startPtr = itemPtr;
}
}
/*
- * The code below is optimized so that it can eliminate most
- * items without having to call their item-specific procedures.
- * This is done by keeping a bounding box (x1, y1, x2, y2) that
- * an item's bbox must overlap if the item is to have any
- * chance of being closer than the closest so far.
+ * The code below is optimized so that it can eliminate most items
+ * without having to call their item-specific functions. This is done
+ * by keeping a bounding box (x1, y1, x2, y2) that an item's bbox must
+ * overlap if the item is to have any chance of being closer than the
+ * closest so far.
*/
itemPtr = startPtr;
while(itemPtr && (itemPtr->state == TK_STATE_HIDDEN ||
- (itemPtr->state == TK_STATE_NULL && canvasPtr->canvas_state == TK_STATE_HIDDEN))) {
+ (itemPtr->state == TK_STATE_NULL &&
+ canvasPtr->canvas_state == TK_STATE_HIDDEN))) {
itemPtr = itemPtr->nextPtr;
}
if (itemPtr == NULL) {
@@ -4204,8 +4074,8 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
double newDist;
/*
- * Update the bounding box using itemPtr, which is the
- * new closest item.
+ * Update the bounding box using itemPtr, which is the new closest
+ * item.
*/
x1 = (int) (coords[0] - closestDist - halo - 1);
@@ -4215,9 +4085,9 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
closestPtr = itemPtr;
/*
- * Search for an item that beats the current closest one.
- * Work circularly through the canvas's item list until
- * getting back to the starting item.
+ * Search for an item that beats the current closest one. Work
+ * circularly through the canvas's item list until getting back to
+ * the starting item.
*/
while (1) {
@@ -4229,7 +4099,8 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
DoItem(interp, closestPtr, uid);
return TCL_OK;
}
- if (itemPtr->state == TK_STATE_HIDDEN || (itemPtr->state == TK_STATE_NULL &&
+ if (itemPtr->state == TK_STATE_HIDDEN ||
+ (itemPtr->state == TK_STATE_NULL &&
canvasPtr->canvas_state == TK_STATE_HIDDEN)) {
continue;
}
@@ -4249,39 +4120,28 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
}
}
break;
- }
- case CANV_ENCLOSED: {
- if (argc != first+5) {
- Tcl_WrongNumArgs(interp, first+1, argv, "x1 y1 x2 y2");
+ }
+ case CANV_ENCLOSED:
+ if (objc != first+5) {
+ Tcl_WrongNumArgs(interp, first+1, objv, "x1 y1 x2 y2");
return TCL_ERROR;
}
- return FindArea(interp, canvasPtr, argv+first+1, uid, 1);
- }
- case CANV_OVERLAPPING: {
- if (argc != first+5) {
- Tcl_WrongNumArgs(interp, first+1, argv, "x1 y1 x2 y2");
+ return FindArea(interp, canvasPtr, objv+first+1, uid, 1);
+ case CANV_OVERLAPPING:
+ if (objc != first+5) {
+ Tcl_WrongNumArgs(interp, first+1, objv, "x1 y1 x2 y2");
return TCL_ERROR;
}
- return FindArea(interp, canvasPtr, argv+first+1, uid, 0);
- }
- case CANV_WITHTAG: {
- if (argc != first+2) {
- Tcl_WrongNumArgs(interp, first+1, argv, "tagOrId");
+ return FindArea(interp, canvasPtr, objv+first+1, uid, 0);
+ case CANV_WITHTAG:
+ if (objc != first+2) {
+ Tcl_WrongNumArgs(interp, first+1, objv, "tagOrId");
return TCL_ERROR;
}
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, argv[first+1], &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if (TagSearchScan(canvasPtr, argv[first+1], searchPtrPtr) != TCL_OK) {
- return TCL_ERROR;
- }
- for (itemPtr = TagSearchFirst(*searchPtrPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(*searchPtrPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr,
+ return TCL_ERROR) {
DoItem(interp, itemPtr, uid);
}
- }
}
return TCL_OK;
}
@@ -4291,53 +4151,49 @@ FindItems(interp, canvasPtr, argc, argv, newTag, first, searchPtrPtr)
*
* FindArea --
*
- * This procedure implements area searches for the "find"
- * and "addtag" options.
+ * This function implements area searches for the "find" and "addtag"
+ * options.
*
* Results:
- * A standard Tcl return value. If newTag is NULL, then a
- * list of ids from all the items overlapping or enclosed
- * by the rectangle given by argc is returned in the interp's result.
- * If newTag is NULL, then the normal the interp's result is an
- * empty string. If an error occurs, then the interp's result will
- * hold an error message.
+ * A standard Tcl return value. If newTag is NULL, then a list of ids
+ * from all the items overlapping or enclosed by the rectangle given by
+ * objc is returned in the interp's result. If newTag is NULL, then the
+ * normal the interp's result is an empty string. If an error occurs,
+ * then the interp's result will hold an error message.
*
* Side effects:
- * If uid is non-NULL, then all the items overlapping
- * or enclosed by the area in argv have that tag added to
- * their lists of tags.
+ * If uid is non-NULL, then all the items overlapping or enclosed by the
+ * area in objv have that tag added to their lists of tags.
*
*--------------------------------------------------------------
*/
static int
-FindArea(interp, canvasPtr, argv, uid, enclosed)
- Tcl_Interp *interp; /* Interpreter for error reporting
- * and result storing. */
- TkCanvas *canvasPtr; /* Canvas whose items are to be
- * searched. */
- Tcl_Obj *CONST *argv; /* Array of four arguments that
- * give the coordinates of the
- * rectangular area to search. */
- Tk_Uid uid; /* If non-NULL, gives new tag to set
- * on all found items; if NULL, then
- * ids of found items are returned
- * in the interp's result. */
- int enclosed; /* 0 means overlapping or enclosed
- * items are OK, 1 means only enclosed
- * items are OK. */
+FindArea(
+ Tcl_Interp *interp, /* Interpreter for error reporting and result
+ * storing. */
+ TkCanvas *canvasPtr, /* Canvas whose items are to be searched. */
+ Tcl_Obj *CONST *objv, /* Array of four arguments that give the
+ * coordinates of the rectangular area to
+ * search. */
+ Tk_Uid uid, /* If non-NULL, gives new tag to set on all
+ * found items; if NULL, then ids of found
+ * items are returned in the interp's
+ * result. */
+ int enclosed) /* 0 means overlapping or enclosed items are
+ * OK, 1 means only enclosed items are OK. */
{
double rect[4], tmp;
int x1, y1, x2, y2;
Tk_Item *itemPtr;
- if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, argv[0],
+ if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[0],
&rect[0]) != TCL_OK)
- || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, argv[1],
+ || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[1],
&rect[1]) != TCL_OK)
- || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, argv[2],
+ || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[2],
&rect[2]) != TCL_OK)
- || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, argv[3],
+ || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[3],
&rect[3]) != TCL_OK)) {
return TCL_ERROR;
}
@@ -4349,8 +4205,8 @@ FindArea(interp, canvasPtr, argv, uid, enclosed)
}
/*
- * Use an integer bounding box for a quick test, to avoid
- * calling item-specific code except for items that are close.
+ * Use an integer bounding box for a quick test, to avoid calling
+ * item-specific code except for items that are close.
*/
x1 = (int) (rect[0]-1.0);
@@ -4380,65 +4236,60 @@ FindArea(interp, canvasPtr, argv, uid, enclosed)
*
* RelinkItems --
*
- * Move one or more items to a different place in the
- * display order for a canvas.
+ * Move one or more items to a different place in the display order for a
+ * canvas.
*
* Results:
* None.
*
* Side effects:
- * The items identified by "tag" are moved so that they
- * are all together in the display list and immediately
- * after prevPtr. The order of the moved items relative
- * to each other is not changed.
+ * The items identified by "tag" are moved so that they are all together
+ * in the display list and immediately after prevPtr. The order of the
+ * moved items relative to each other is not changed.
*
*--------------------------------------------------------------
*/
#ifdef USE_OLD_TAG_SEARCH
static void
-RelinkItems(canvasPtr, tag, prevPtr)
+RelinkItems(
+ TkCanvas *canvasPtr, /* Canvas to be modified. */
+ Tcl_Obj *tag, /* Tag identifying items to be moved in the
+ * redisplay list. */
+ Tk_Item *prevPtr) /* Reposition the items so that they go just
+ * after this item (NULL means put at
+ * beginning of list). */
#else /* USE_OLD_TAG_SEARCH */
static int
-RelinkItems(canvasPtr, tag, prevPtr, searchPtrPtr)
+RelinkItems(
+ TkCanvas *canvasPtr, /* Canvas to be modified. */
+ Tcl_Obj *tag, /* Tag identifying items to be moved in the
+ * redisplay list. */
+ Tk_Item *prevPtr, /* Reposition the items so that they go just
+ * after this item (NULL means put at
+ * beginning of list). */
+ TagSearch **searchPtrPtr) /* From CanvasWidgetCmd local vars */
#endif /* USE_OLD_TAG_SEARCH */
- TkCanvas *canvasPtr; /* Canvas to be modified. */
- Tcl_Obj *tag; /* Tag identifying items to be moved
- * in the redisplay list. */
- Tk_Item *prevPtr; /* Reposition the items so that they
- * go just after this item (NULL means
- * put at beginning of list). */
-#ifndef USE_OLD_TAG_SEARCH
- TagSearch **searchPtrPtr; /* From CanvasWidgetCmd local vars */
-#endif /* not USE_OLD_TAG_SEARCH */
{
Tk_Item *itemPtr;
#ifdef USE_OLD_TAG_SEARCH
TagSearch search;
#endif /* USE_OLD_TAG_SEARCH */
Tk_Item *firstMovePtr, *lastMovePtr;
+ int result;
/*
- * Find all of the items to be moved and remove them from
- * the list, making an auxiliary list running from firstMovePtr
- * to lastMovePtr. Record their areas for redisplay.
+ * Find all of the items to be moved and remove them from the list, making
+ * an auxiliary list running from firstMovePtr to lastMovePtr. Record
+ * their areas for redisplay.
*/
firstMovePtr = lastMovePtr = NULL;
-#ifdef USE_OLD_TAG_SEARCH
- for (itemPtr = StartTagSearch(canvasPtr, tag, &search);
- itemPtr != NULL; itemPtr = NextItem(&search)) {
-#else /* USE_OLD_TAG_SEARCH */
- if (TagSearchScan(canvasPtr, tag, searchPtrPtr) != TCL_OK) {
- return TCL_ERROR;
- }
- for (itemPtr = TagSearchFirst(*searchPtrPtr);
- itemPtr != NULL; itemPtr = TagSearchNext(*searchPtrPtr)) {
-#endif /* USE_OLD_TAG_SEARCH */
+ FOR_EVERY_CANVAS_ITEM_MATCHING(tag, searchPtrPtr, return TCL_ERROR) {
if (itemPtr == prevPtr) {
/*
- * Item after which insertion is to occur is being
- * moved! Switch to insert after its predecessor.
+ * Item after which insertion is to occur is being moved! Switch
+ * to insert after its predecessor.
*/
prevPtr = prevPtr->prevPtr;
@@ -4470,15 +4321,15 @@ RelinkItems(canvasPtr, tag, prevPtr, searchPtrPtr)
}
/*
- * Insert the list of to-be-moved items back into the canvas's
- * at the desired position.
+ * Insert the list of to-be-moved items back into the canvas's at the
+ * desired position.
*/
if (firstMovePtr == NULL) {
#ifdef USE_OLD_TAG_SEARCH
return;
#else /* USE_OLD_TAG_SEARCH */
- return TCL_OK;
+ return TCL_OK;
#endif /* USE_OLD_TAG_SEARCH */
}
if (prevPtr == NULL) {
@@ -4510,24 +4361,23 @@ RelinkItems(canvasPtr, tag, prevPtr, searchPtrPtr)
*
* CanvasBindProc --
*
- * This procedure is invoked by the Tk dispatcher to handle
- * events associated with bindings on items.
+ * This function is invoked by the Tk dispatcher to handle events
+ * associated with bindings on items.
*
* Results:
* None.
*
* Side effects:
- * Depends on the command invoked as part of the binding
- * (if there was any).
+ * Depends on the command invoked as part of the binding (if there was
+ * any).
*
*--------------------------------------------------------------
*/
static void
-CanvasBindProc(clientData, eventPtr)
- ClientData clientData; /* Pointer to canvas structure. */
- XEvent *eventPtr; /* Pointer to X event that just
- * happened. */
+CanvasBindProc(
+ ClientData clientData, /* Pointer to canvas structure. */
+ XEvent *eventPtr) /* Pointer to X event that just happened. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
@@ -4535,47 +4385,46 @@ CanvasBindProc(clientData, eventPtr)
/*
* This code below keeps track of the current modifier state in
- * canvasPtr>state. This information is used to defer repicks of
- * the current item while buttons are down.
+ * canvasPtr>state. This information is used to defer repicks of the
+ * current item while buttons are down.
*/
if ((eventPtr->type == ButtonPress) || (eventPtr->type == ButtonRelease)) {
int mask;
switch (eventPtr->xbutton.button) {
- case Button1:
- mask = Button1Mask;
- break;
- case Button2:
- mask = Button2Mask;
- break;
- case Button3:
- mask = Button3Mask;
- break;
- case Button4:
- mask = Button4Mask;
- break;
- case Button5:
- mask = Button5Mask;
- break;
- default:
- mask = 0;
- break;
+ case Button1:
+ mask = Button1Mask;
+ break;
+ case Button2:
+ mask = Button2Mask;
+ break;
+ case Button3:
+ mask = Button3Mask;
+ break;
+ case Button4:
+ mask = Button4Mask;
+ break;
+ case Button5:
+ mask = Button5Mask;
+ break;
+ default:
+ mask = 0;
+ break;
}
/*
- * For button press events, repick the current item using the
- * button state before the event, then process the event. For
- * button release events, first process the event, then repick
- * the current item using the button state *after* the event
- * (the button has logically gone up before we change the
- * current item).
+ * For button press events, repick the current item using the button
+ * state before the event, then process the event. For button release
+ * events, first process the event, then repick the current item using
+ * the button state *after* the event (the button has logically gone
+ * up before we change the current item).
*/
if (eventPtr->type == ButtonPress) {
/*
- * On a button press, first repick the current item using
- * the button state before the event, the process the event.
+ * On a button press, first repick the current item using the
+ * button state before the event, the process the event.
*/
canvasPtr->state = eventPtr->xbutton.state;
@@ -4584,9 +4433,9 @@ CanvasBindProc(clientData, eventPtr)
CanvasDoEvent(canvasPtr, eventPtr);
} else {
/*
- * Button release: first process the event, with the button
- * still considered to be down. Then repick the current
- * item under the assumption that the button is no longer down.
+ * Button release: first process the event, with the button still
+ * considered to be down. Then repick the current item under the
+ * assumption that the button is no longer down.
*/
canvasPtr->state = eventPtr->xbutton.state;
@@ -4608,7 +4457,7 @@ CanvasBindProc(clientData, eventPtr)
}
CanvasDoEvent(canvasPtr, eventPtr);
- done:
+ done:
Tcl_Release((ClientData) canvasPtr);
}
@@ -4617,34 +4466,31 @@ CanvasBindProc(clientData, eventPtr)
*
* PickCurrentItem --
*
- * Find the topmost item in a canvas that contains a given
- * location and mark the the current item. If the current
- * item has changed, generate a fake exit event on the old
- * current item, a fake enter event on the new current item
- * item and force a redraw of the two items. Canvas items
- * that are hidden or disabled are ignored.
+ * Find the topmost item in a canvas that contains a given location and
+ * mark the the current item. If the current item has changed, generate a
+ * fake exit event on the old current item, a fake enter event on the new
+ * current item item and force a redraw of the two items. Canvas items
+ * that are hidden or disabled are ignored.
*
* Results:
* None.
*
* Side effects:
- * The current item for canvasPtr may change. If it does,
- * then the commands associated with item entry and exit
- * could do just about anything. A binding script could
- * delete the canvas, so callers should protect themselves
- * with Tcl_Preserve and Tcl_Release.
+ * The current item for canvasPtr may change. If it does, then the
+ * commands associated with item entry and exit could do just about
+ * anything. A binding script could delete the canvas, so callers should
+ * protect themselves with Tcl_Preserve and Tcl_Release.
*
*--------------------------------------------------------------
*/
static void
-PickCurrentItem(canvasPtr, eventPtr)
- TkCanvas *canvasPtr; /* Canvas widget in which to select
- * current item. */
- XEvent *eventPtr; /* Event describing location of
- * mouse cursor. Must be EnterWindow,
- * LeaveWindow, ButtonRelease, or
- * MotionNotify. */
+PickCurrentItem(
+ TkCanvas *canvasPtr, /* Canvas widget in which to select current
+ * item. */
+ XEvent *eventPtr) /* Event describing location of mouse cursor.
+ * Must be EnterWindow, LeaveWindow,
+ * ButtonRelease, or MotionNotify. */
{
double coords[2];
int buttonDown;
@@ -4654,23 +4500,24 @@ PickCurrentItem(canvasPtr, eventPtr)
#endif
/*
- * Check whether or not a button is down. If so, we'll log entry
- * and exit into and out of the current item, but not entry into
- * any other item. This implements a form of grabbing equivalent
- * to what the X server does for windows.
+ * Check whether or not a button is down. If so, we'll log entry and exit
+ * into and out of the current item, but not entry into any other item.
+ * This implements a form of grabbing equivalent to what the X server does
+ * for windows.
*/
buttonDown = canvasPtr->state
& (Button1Mask|Button2Mask|Button3Mask|Button4Mask|Button5Mask);
/*
- * Save information about this event in the canvas. The event in
- * the canvas is used for two purposes:
+ * Save information about this event in the canvas. The event in the
+ * canvas is used for two purposes:
*
* 1. Event bindings: if the current item changes, fake events are
* generated to allow item-enter and item-leave bindings to trigger.
- * 2. Reselection: if the current item gets deleted, can use the
- * saved event to find a new current item.
+ * 2. Reselection: if the current item gets deleted, can use the saved
+ * event to find a new current item.
+ *
* Translate MotionNotify events into EnterNotify events, since that's
* what gets reported to item handlers.
*/
@@ -4703,10 +4550,10 @@ PickCurrentItem(canvasPtr, eventPtr)
}
/*
- * If this is a recursive call (there's already a partially completed
- * call pending on the stack; it's in the middle of processing a
- * Leave event handler for the old current item) then just return;
- * the pending call will do everything that's needed.
+ * If this is a recursive call (there's already a partially completed call
+ * pending on the stack; it's in the middle of processing a Leave event
+ * handler for the old current item) then just return; the pending call
+ * will do everything that's needed.
*/
if (canvasPtr->flags & REPICK_IN_PROGRESS) {
@@ -4714,8 +4561,8 @@ PickCurrentItem(canvasPtr, eventPtr)
}
/*
- * A LeaveNotify event automatically means that there's no current
- * object, so the check for closest item can be skipped.
+ * A LeaveNotify event automatically means that there's no current object,
+ * so the check for closest item can be skipped.
*/
coords[0] = canvasPtr->pickEvent.xcrossing.x + canvasPtr->xOrigin;
@@ -4738,12 +4585,11 @@ PickCurrentItem(canvasPtr, eventPtr)
if (!buttonDown) {
canvasPtr->flags &= ~LEFT_GRABBED_ITEM;
}
-
+
/*
- * Simulate a LeaveNotify event on the previous current item and
- * an EnterNotify event on the new current item. Remove the "current"
- * tag from the previous current item and place it on the new current
- * item.
+ * Simulate a LeaveNotify event on the previous current item and an
+ * EnterNotify event on the new current item. Remove the "current" tag
+ * from the previous current item and place it on the new current item.
*/
if ((canvasPtr->newCurrentPtr != canvasPtr->currentItemPtr)
@@ -4757,9 +4603,9 @@ PickCurrentItem(canvasPtr, eventPtr)
event.type = LeaveNotify;
/*
- * If the event's detail happens to be NotifyInferior the
- * binding mechanism will discard the event. To be consistent,
- * always use NotifyAncestor.
+ * If the event's detail happens to be NotifyInferior the binding
+ * mechanism will discard the event. To be consistent, always use
+ * NotifyAncestor.
*/
event.xcrossing.detail = NotifyAncestor;
@@ -4768,28 +4614,29 @@ PickCurrentItem(canvasPtr, eventPtr)
canvasPtr->flags &= ~REPICK_IN_PROGRESS;
/*
- * The check below is needed because there could be an event
- * handler for <LeaveNotify> that deletes the current item.
+ * The check below is needed because there could be an event handler
+ * for <LeaveNotify> that deletes the current item.
*/
if ((itemPtr == canvasPtr->currentItemPtr) && !buttonDown) {
for (i = itemPtr->numTags-1; i >= 0; i--) {
#ifdef USE_OLD_TAG_SEARCH
- if (itemPtr->tagPtr[i] == Tk_GetUid("current")) {
+ if (itemPtr->tagPtr[i] == Tk_GetUid("current"))
#else /* USE_OLD_TAG_SEARCH */
- if (itemPtr->tagPtr[i] == searchUids->currentUid) {
+ if (itemPtr->tagPtr[i] == searchUids->currentUid)
#endif /* USE_OLD_TAG_SEARCH */
+ /* then */ {
itemPtr->tagPtr[i] = itemPtr->tagPtr[itemPtr->numTags-1];
itemPtr->numTags--;
break;
}
}
}
-
+
/*
- * Note: during CanvasDoEvent above, it's possible that
- * canvasPtr->newCurrentPtr got reset to NULL because the
- * item was deleted.
+ * Note: during CanvasDoEvent above, it's possible that
+ * canvasPtr->newCurrentPtr got reset to NULL because the item was
+ * deleted.
*/
}
if ((canvasPtr->newCurrentPtr != canvasPtr->currentItemPtr) && buttonDown) {
@@ -4798,9 +4645,9 @@ PickCurrentItem(canvasPtr, eventPtr)
}
/*
- * Special note: it's possible that canvasPtr->newCurrentPtr ==
- * canvasPtr->currentItemPtr here. This can happen, for example,
- * if LEFT_GRABBED_ITEM was set.
+ * Special note: it's possible that canvasPtr->newCurrentPtr ==
+ * canvasPtr->currentItemPtr here. This can happen, for example, if
+ * LEFT_GRABBED_ITEM was set.
*/
prevItemPtr = canvasPtr->currentItemPtr;
@@ -4810,23 +4657,21 @@ PickCurrentItem(canvasPtr, eventPtr)
(prevItemPtr->redraw_flags & TK_ITEM_STATE_DEPENDANT)) {
EventuallyRedrawItem((Tk_Canvas) canvasPtr, prevItemPtr);
(*prevItemPtr->typePtr->configProc)(canvasPtr->interp,
- (Tk_Canvas) canvasPtr, prevItemPtr, 0, (Tcl_Obj **) NULL,
+ (Tk_Canvas) canvasPtr, prevItemPtr, 0, NULL,
TK_CONFIG_ARGV_ONLY);
}
if (canvasPtr->currentItemPtr != NULL) {
XEvent event;
#ifdef USE_OLD_TAG_SEARCH
- DoItem((Tcl_Interp *) NULL, canvasPtr->currentItemPtr,
- Tk_GetUid("current"));
+ DoItem(NULL, canvasPtr->currentItemPtr, Tk_GetUid("current"));
#else /* USE_OLD_TAG_SEARCH */
- DoItem((Tcl_Interp *) NULL, canvasPtr->currentItemPtr,
- searchUids->currentUid);
+ DoItem(NULL, canvasPtr->currentItemPtr, searchUids->currentUid);
#endif /* USE_OLD_TAG_SEA */
if ((canvasPtr->currentItemPtr->redraw_flags & TK_ITEM_STATE_DEPENDANT &&
prevItemPtr != canvasPtr->currentItemPtr)) {
(*canvasPtr->currentItemPtr->typePtr->configProc)(canvasPtr->interp,
- (Tk_Canvas) canvasPtr, canvasPtr->currentItemPtr, 0, (Tcl_Obj **) NULL,
+ (Tk_Canvas) canvasPtr, canvasPtr->currentItemPtr, 0, NULL,
TK_CONFIG_ARGV_ONLY);
EventuallyRedrawItem((Tk_Canvas) canvasPtr,
canvasPtr->currentItemPtr);
@@ -4843,13 +4688,13 @@ PickCurrentItem(canvasPtr, eventPtr)
*
* CanvasFindClosest --
*
- * Given x and y coordinates, find the topmost canvas item that
- * is "close" to the coordinates. Canvas items that are hidden
- * or disabled are ignored.
+ * Given x and y coordinates, find the topmost canvas item that is
+ * "close" to the coordinates. Canvas items that are hidden or disabled
+ * are ignored.
*
* Results:
- * The return value is a pointer to the topmost item that is
- * close to (x,y), or NULL if no item is close.
+ * The return value is a pointer to the topmost item that is close to
+ * (x,y), or NULL if no item is close.
*
* Side effects:
* None.
@@ -4858,10 +4703,10 @@ PickCurrentItem(canvasPtr, eventPtr)
*/
static Tk_Item *
-CanvasFindClosest(canvasPtr, coords)
- TkCanvas *canvasPtr; /* Canvas widget to search. */
- double coords[2]; /* Desired x,y position in canvas,
- * not screen, coordinates.) */
+CanvasFindClosest(
+ TkCanvas *canvasPtr, /* Canvas widget to search. */
+ double coords[2]) /* Desired x,y position in canvas, not screen,
+ * coordinates.) */
{
Tk_Item *itemPtr;
Tk_Item *bestPtr;
@@ -4897,27 +4742,25 @@ CanvasFindClosest(canvasPtr, coords)
*
* CanvasDoEvent --
*
- * This procedure is called to invoke binding processing
- * for a new event that is associated with the current item
- * for a canvas.
+ * This function is called to invoke binding processing for a new event
+ * that is associated with the current item for a canvas.
*
* Results:
* None.
*
* Side effects:
- * Depends on the bindings for the canvas. A binding script
- * could delete the canvas, so callers should protect themselves
- * with Tcl_Preserve and Tcl_Release.
+ * Depends on the bindings for the canvas. A binding script could delete
+ * the canvas, so callers should protect themselves with Tcl_Preserve and
+ * Tcl_Release.
*
*--------------------------------------------------------------
*/
static void
-CanvasDoEvent(canvasPtr, eventPtr)
- TkCanvas *canvasPtr; /* Canvas widget in which event
- * occurred. */
- XEvent *eventPtr; /* Real or simulated X event that
- * is to be processed. */
+CanvasDoEvent(
+ TkCanvas *canvasPtr, /* Canvas widget in which event occurred. */
+ XEvent *eventPtr) /* Real or simulated X event that is to be
+ * processed. */
{
#define NUM_STATIC 3
ClientData staticObjects[NUM_STATIC];
@@ -4944,30 +4787,30 @@ CanvasDoEvent(canvasPtr, eventPtr)
#ifdef USE_OLD_TAG_SEARCH
/*
- * Set up an array with all the relevant objects for processing
- * this event. The relevant objects are (a) the event's item,
- * (b) the tags associated with the event's item, and (c) the
- * tag "all". If there are a lot of tags then malloc an array
- * to hold all of the objects.
+ * Set up an array with all the relevant objects for processing this
+ * event. The relevant objects are (a) the event's item, (b) the tags
+ * associated with the event's item, and (c) the tag "all". If there are a
+ * lot of tags then malloc an array to hold all of the objects.
*/
numObjects = itemPtr->numTags + 2;
#else /* USE_OLD_TAG_SEARCH */
/*
- * Set up an array with all the relevant objects for processing
- * this event. The relevant objects are:
+ * Set up an array with all the relevant objects for processing this
+ * event. The relevant objects are:
* (a) the event's item,
- * (b) the tags associated with the event's item,
+ * (b) the tags associated with the event's item,
* (c) the expressions that are true for the event's item's tags, and
- * (d) the tag "all".
+ * (d) the tag "all".
*
- * If there are a lot of tags then malloc an array to hold all of
- * the objects.
+ * If there are a lot of tags then malloc an array to hold all of the
+ * objects.
*/
/*
- * flag and count all expressions that match item's tags
+ * Flag and count all expressions that match item's tags.
*/
+
numExprs = 0;
expr = canvasPtr->bindTagExprs;
while (expr) {
@@ -4984,8 +4827,8 @@ CanvasDoEvent(canvasPtr, eventPtr)
if (numObjects <= NUM_STATIC) {
objectPtr = staticObjects;
} else {
- objectPtr = (ClientData *)
- ckalloc((unsigned) (numObjects * sizeof(ClientData)));
+ objectPtr = (ClientData *) ckalloc((unsigned)
+ (numObjects * sizeof(ClientData)));
}
#ifdef USE_OLD_TAG_SEARCH
objectPtr[0] = (ClientData) Tk_GetUid("all");
@@ -4996,10 +4839,12 @@ CanvasDoEvent(canvasPtr, eventPtr)
objectPtr[i+1] = (ClientData) itemPtr->tagPtr[i];
}
objectPtr[itemPtr->numTags+1] = (ClientData) itemPtr;
+
#ifndef USE_OLD_TAG_SEARCH
/*
- * copy uids of matching expressions into object array
+ * Copy uids of matching expressions into object array
*/
+
i = itemPtr->numTags+2;
expr = canvasPtr->bindTagExprs;
while (expr) {
@@ -5011,8 +4856,8 @@ CanvasDoEvent(canvasPtr, eventPtr)
#endif /* not USE_OLD_TAG_SEARCH */
/*
- * Invoke the binding system, then free up the object array if
- * it was malloc-ed.
+ * Invoke the binding system, then free up the object array if it was
+ * malloc-ed.
*/
if (canvasPtr->tkwin != NULL) {
@@ -5029,22 +4874,22 @@ CanvasDoEvent(canvasPtr, eventPtr)
*
* CanvasBlinkProc --
*
- * This procedure is called as a timer handler to blink the
- * insertion cursor off and on.
+ * This function is called as a timer handler to blink the insertion
+ * cursor off and on.
*
* Results:
* None.
*
* Side effects:
- * The cursor gets turned on or off, redisplay gets invoked,
- * and this procedure reschedules itself.
+ * The cursor gets turned on or off, redisplay gets invoked, and this
+ * function reschedules itself.
*
*----------------------------------------------------------------------
*/
static void
-CanvasBlinkProc(clientData)
- ClientData clientData; /* Pointer to record describing entry. */
+CanvasBlinkProc(
+ ClientData clientData) /* Pointer to record describing entry. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
@@ -5073,9 +4918,9 @@ CanvasBlinkProc(clientData)
*
* CanvasFocusProc --
*
- * This procedure is called whenever a canvas gets or loses the
- * input focus. It's also called whenever the window is
- * reconfigured while it has the focus.
+ * This function is called whenever a canvas gets or loses the input
+ * focus. It's also called whenever the window is reconfigured while it
+ * has the focus.
*
* Results:
* None.
@@ -5087,9 +4932,9 @@ CanvasBlinkProc(clientData)
*/
static void
-CanvasFocusProc(canvasPtr, gotFocus)
- TkCanvas *canvasPtr; /* Canvas that just got or lost focus. */
- int gotFocus; /* 1 means window is getting focus, 0 means
+CanvasFocusProc(
+ TkCanvas *canvasPtr, /* Canvas that just got or lost focus. */
+ int gotFocus) /* 1 means window is getting focus, 0 means
* it's losing it. */
{
Tcl_DeleteTimerHandler(canvasPtr->insertBlinkHandler);
@@ -5124,8 +4969,8 @@ CanvasFocusProc(canvasPtr, gotFocus)
*
* CanvasSelectTo --
*
- * Modify the selection by moving its un-anchored end. This could
- * make the selection either larger or smaller.
+ * Modify the selection by moving its un-anchored end. This could make
+ * the selection either larger or smaller.
*
* Results:
* None.
@@ -5137,10 +4982,10 @@ CanvasFocusProc(canvasPtr, gotFocus)
*/
static void
-CanvasSelectTo(canvasPtr, itemPtr, index)
- TkCanvas *canvasPtr; /* Information about widget. */
- Tk_Item *itemPtr; /* Item that is to hold selection. */
- int index; /* Index of element that is to become the
+CanvasSelectTo(
+ TkCanvas *canvasPtr, /* Information about widget. */
+ Tk_Item *itemPtr, /* Item that is to hold selection. */
+ int index) /* Index of element that is to become the
* "other" end of the selection. */
{
int oldFirst, oldLast;
@@ -5186,15 +5031,15 @@ CanvasSelectTo(canvasPtr, itemPtr, index)
*
* CanvasFetchSelection --
*
- * This procedure is invoked by Tk to return part or all of
- * the selection, when the selection is in a canvas widget.
- * This procedure always returns the selection as a STRING.
+ * This function is invoked by Tk to return part or all of the selection,
+ * when the selection is in a canvas widget. This function always returns
+ * the selection as a STRING.
*
* Results:
- * The return value is the number of non-NULL bytes stored
- * at buffer. Buffer is filled (or partially filled) with a
- * NULL-terminated string containing part or all of the selection,
- * as given by offset and maxBytes.
+ * The return value is the number of non-NULL bytes stored at buffer.
+ * Buffer is filled (or partially filled) with a NULL-terminated string
+ * containing part or all of the selection, as given by offset and
+ * maxBytes.
*
* Side effects:
* None.
@@ -5203,15 +5048,14 @@ CanvasSelectTo(canvasPtr, itemPtr, index)
*/
static int
-CanvasFetchSelection(clientData, offset, buffer, maxBytes)
- ClientData clientData; /* Information about canvas widget. */
- int offset; /* Offset within selection of first
- * character to be returned. */
- char *buffer; /* Location in which to place
- * selection. */
- int maxBytes; /* Maximum number of bytes to place
- * at buffer, not including terminating
- * NULL character. */
+CanvasFetchSelection(
+ ClientData clientData, /* Information about canvas widget. */
+ int offset, /* Offset within selection of first character
+ * to be returned. */
+ char *buffer, /* Location in which to place selection. */
+ int maxBytes) /* Maximum number of bytes to place at buffer,
+ * not including terminating NULL
+ * character. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
@@ -5231,22 +5075,22 @@ CanvasFetchSelection(clientData, offset, buffer, maxBytes)
*
* CanvasLostSelection --
*
- * This procedure is called back by Tk when the selection is
- * grabbed away from a canvas widget.
+ * This function is called back by Tk when the selection is grabbed away
+ * from a canvas widget.
*
* Results:
* None.
*
* Side effects:
- * The existing selection is unhighlighted, and the window is
- * marked as not containing a selection.
+ * The existing selection is unhighlighted, and the window is marked as
+ * not containing a selection.
*
*----------------------------------------------------------------------
*/
static void
-CanvasLostSelection(clientData)
- ClientData clientData; /* Information about entry widget. */
+CanvasLostSelection(
+ ClientData clientData) /* Information about entry widget. */
{
TkCanvas *canvasPtr = (TkCanvas *) clientData;
@@ -5262,13 +5106,11 @@ CanvasLostSelection(clientData)
*
* GridAlign --
*
- * Given a coordinate and a grid spacing, this procedure
- * computes the location of the nearest grid line to the
- * coordinate.
+ * Given a coordinate and a grid spacing, this function computes the
+ * location of the nearest grid line to the coordinate.
*
* Results:
- * The return value is the location of the grid line nearest
- * to coord.
+ * The return value is the location of the grid line nearest to coord.
*
* Side effects:
* None.
@@ -5277,10 +5119,10 @@ CanvasLostSelection(clientData)
*/
static double
-GridAlign(coord, spacing)
- double coord; /* Coordinate to grid-align. */
- double spacing; /* Spacing between grid lines. If <= 0
- * then no alignment is done. */
+GridAlign(
+ double coord, /* Coordinate to grid-align. */
+ double spacing) /* Spacing between grid lines. If <= 0 then no
+ * alignment is done. */
{
if (spacing <= 0.0) {
return coord;
@@ -5296,15 +5138,14 @@ GridAlign(coord, spacing)
*
* ScrollFractions --
*
- * Given the range that's visible in the window and the "100%
- * range" for what's in the canvas, return a list of two
- * doubles representing the scroll fractions. This procedure
- * is used for both x and y scrolling.
+ * Given the range that's visible in the window and the "100% range" for
+ * what's in the canvas, return a list of two doubles representing the
+ * scroll fractions. This function is used for both x and y scrolling.
*
* Results:
- * The memory pointed to by string is modified to hold
- * two real numbers containing the scroll fractions (between
- * 0 and 1) corresponding to the other arguments.
+ * A List Tcl_Obj with two real numbers (Double Tcl_Objs) containing the
+ * scroll fractions (between 0 and 1) corresponding to the other
+ * arguments.
*
* Side effects:
* None.
@@ -5313,14 +5154,14 @@ GridAlign(coord, spacing)
*/
static Tcl_Obj *
-ScrollFractions(screen1, screen2, object1, object2)
- int screen1; /* Lowest coordinate visible in the window. */
- int screen2; /* Highest coordinate visible in the window. */
- int object1; /* Lowest coordinate in the object. */
- int object2; /* Highest coordinate in the object. */
+ScrollFractions(
+ int screen1, /* Lowest coordinate visible in the window. */
+ int screen2, /* Highest coordinate visible in the window. */
+ int object1, /* Lowest coordinate in the object. */
+ int object2) /* Highest coordinate in the object. */
{
+ Tcl_Obj *buffer[2];
double range, f1, f2;
- char buffer[2*TCL_DOUBLE_SPACE+2];
range = object2 - object1;
if (range <= 0) {
@@ -5339,8 +5180,9 @@ ScrollFractions(screen1, screen2, object1, object2)
f2 = f1;
}
}
- sprintf(buffer, "%g %g", f1, f2);
- return Tcl_NewStringObj(buffer, -1);
+ buffer[0] = Tcl_NewDoubleObj(f1);
+ buffer[1] = Tcl_NewDoubleObj(f2);
+ return Tcl_NewListObj(2, buffer);
}
/*
@@ -5348,46 +5190,45 @@ ScrollFractions(screen1, screen2, object1, object2)
*
* CanvasUpdateScrollbars --
*
- * This procedure is invoked whenever a canvas has changed in
- * a way that requires scrollbars to be redisplayed (e.g. the
- * view in the canvas has changed).
+ * This function is invoked whenever a canvas has changed in a way that
+ * requires scrollbars to be redisplayed (e.g. the view in the canvas has
+ * changed).
*
* Results:
* None.
*
* Side effects:
- * If there are scrollbars associated with the canvas, then
- * their scrolling commands are invoked to cause them to
- * redisplay. If errors occur, additional Tcl commands may
- * be invoked to process the errors.
+ * If there are scrollbars associated with the canvas, then their
+ * scrolling commands are invoked to cause them to redisplay. If errors
+ * occur, additional Tcl commands may be invoked to process the errors.
*
*--------------------------------------------------------------
*/
static void
-CanvasUpdateScrollbars(canvasPtr)
- TkCanvas *canvasPtr; /* Information about canvas. */
+CanvasUpdateScrollbars(
+ TkCanvas *canvasPtr) /* Information about canvas. */
{
int result;
Tcl_Interp *interp;
- int xOrigin, yOrigin, inset, width, height, scrollX1, scrollX2,
- scrollY1, scrollY2;
+ int xOrigin, yOrigin, inset, width, height;
+ int scrollX1, scrollX2, scrollY1, scrollY2;
char *xScrollCmd, *yScrollCmd;
/*
* Save all the relevant values from the canvasPtr, because it might be
* deleted as part of either of the two calls to Tcl_VarEval below.
*/
-
+
interp = canvasPtr->interp;
Tcl_Preserve((ClientData) interp);
xScrollCmd = canvasPtr->xScrollCmd;
- if (xScrollCmd != (char *) NULL) {
- Tcl_Preserve((ClientData) xScrollCmd);
+ if (xScrollCmd != NULL) {
+ Tcl_Preserve((ClientData) xScrollCmd);
}
yScrollCmd = canvasPtr->yScrollCmd;
- if (yScrollCmd != (char *) NULL) {
- Tcl_Preserve((ClientData) yScrollCmd);
+ if (yScrollCmd != NULL) {
+ Tcl_Preserve((ClientData) yScrollCmd);
}
xOrigin = canvasPtr->xOrigin;
yOrigin = canvasPtr->yOrigin;
@@ -5402,27 +5243,27 @@ CanvasUpdateScrollbars(canvasPtr)
if (canvasPtr->xScrollCmd != NULL) {
Tcl_Obj *fractions = ScrollFractions(xOrigin + inset,
xOrigin + width - inset, scrollX1, scrollX2);
- result = Tcl_VarEval(interp, xScrollCmd, " ",
- Tcl_GetString(fractions), (char *) NULL);
+ result = Tcl_VarEval(interp, xScrollCmd, " ", Tcl_GetString(fractions),
+ NULL);
Tcl_DecrRefCount(fractions);
if (result != TCL_OK) {
Tcl_BackgroundError(interp);
}
Tcl_ResetResult(interp);
- Tcl_Release((ClientData) xScrollCmd);
+ Tcl_Release((ClientData) xScrollCmd);
}
if (yScrollCmd != NULL) {
Tcl_Obj *fractions = ScrollFractions(yOrigin + inset,
yOrigin + height - inset, scrollY1, scrollY2);
- result = Tcl_VarEval(interp, yScrollCmd, " ",
- Tcl_GetString(fractions), (char *) NULL);
+ result = Tcl_VarEval(interp, yScrollCmd, " ", Tcl_GetString(fractions),
+ NULL);
Tcl_DecrRefCount(fractions);
if (result != TCL_OK) {
Tcl_BackgroundError(interp);
}
Tcl_ResetResult(interp);
- Tcl_Release((ClientData) yScrollCmd);
+ Tcl_Release((ClientData) yScrollCmd);
}
Tcl_Release((ClientData) interp);
}
@@ -5432,38 +5273,35 @@ CanvasUpdateScrollbars(canvasPtr)
*
* CanvasSetOrigin --
*
- * This procedure is invoked to change the mapping between
- * canvas coordinates and screen coordinates in the canvas
- * window.
+ * This function is invoked to change the mapping between canvas
+ * coordinates and screen coordinates in the canvas window.
*
* Results:
* None.
*
* Side effects:
- * The canvas will be redisplayed to reflect the change in
- * view. In addition, scrollbars will be updated if there
- * are any.
+ * The canvas will be redisplayed to reflect the change in view. In
+ * addition, scrollbars will be updated if there are any.
*
*--------------------------------------------------------------
*/
static void
-CanvasSetOrigin(canvasPtr, xOrigin, yOrigin)
- TkCanvas *canvasPtr; /* Information about canvas. */
- int xOrigin; /* New X origin for canvas (canvas x-coord
+CanvasSetOrigin(
+ TkCanvas *canvasPtr, /* Information about canvas. */
+ int xOrigin, /* New X origin for canvas (canvas x-coord
* corresponding to left edge of canvas
* window). */
- int yOrigin; /* New Y origin for canvas (canvas y-coord
+ int yOrigin) /* New Y origin for canvas (canvas y-coord
* corresponding to top edge of canvas
* window). */
{
int left, right, top, bottom, delta;
/*
- * If scroll increments have been set, round the window origin
- * to the nearest multiple of the increments. Remember, the
- * origin is the place just inside the borders, not the upper
- * left corner.
+ * If scroll increments have been set, round the window origin to the
+ * nearest multiple of the increments. Remember, the origin is the place
+ * just inside the borders, not the upper left corner.
*/
if (canvasPtr->xScrollIncrement > 0) {
@@ -5491,13 +5329,13 @@ CanvasSetOrigin(canvasPtr, xOrigin, yOrigin)
/*
* Adjust the origin if necessary to keep as much as possible of the
- * canvas in the view. The variables left, right, etc. keep track of
- * how much extra space there is on each side of the view before it
- * will stick out past the scroll region. If one side sticks out past
- * the edge of the scroll region, adjust the view to bring that side
- * back to the edge of the scrollregion (but don't move it so much that
- * the other side sticks out now). If scroll increments are in effect,
- * be sure to adjust only by full increments.
+ * canvas in the view. The variables left, right, etc. keep track of how
+ * much extra space there is on each side of the view before it will stick
+ * out past the scroll region. If one side sticks out past the edge of
+ * the scroll region, adjust the view to bring that side back to the edge
+ * of the scrollregion (but don't move it so much that the other side
+ * sticks out now). If scroll increments are in effect, be sure to adjust
+ * only by full increments.
*/
if ((canvasPtr->confine) && (canvasPtr->regionString != NULL)) {
@@ -5540,11 +5378,11 @@ CanvasSetOrigin(canvasPtr, xOrigin, yOrigin)
}
/*
- * Tricky point: must redisplay not only everything that's visible
- * in the window's final configuration, but also everything that was
- * visible in the initial configuration. This is needed because some
- * item types, like windows, need to know when they move off-screen
- * so they can explicitly undisplay themselves.
+ * Tricky point: must redisplay not only everything that's visible in the
+ * window's final configuration, but also everything that was visible in
+ * the initial configuration. This is needed because some item types, like
+ * windows, need to know when they move off-screen so they can explicitly
+ * undisplay themselves.
*/
Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr,
@@ -5559,37 +5397,38 @@ CanvasSetOrigin(canvasPtr, xOrigin, yOrigin)
canvasPtr->xOrigin + Tk_Width(canvasPtr->tkwin),
canvasPtr->yOrigin + Tk_Height(canvasPtr->tkwin));
}
-
+
/*
*----------------------------------------------------------------------
*
- * GetStringsFromObjs
+ * TkGetStringsFromObjs --
*
* Results:
* Converts object list into string list.
*
* Side effects:
- * Memory is allocated for the argv array, which must
- * be freed using ckfree() when no longer needed.
+ * Memory is allocated for the objv array, which must be freed using
+ * ckfree() when no longer needed.
*
*----------------------------------------------------------------------
*/
+
/* ARGSUSED */
static CONST char **
-GetStringsFromObjs(argc, objv)
- int argc;
- Tcl_Obj *CONST objv[];
+TkGetStringsFromObjs(
+ int objc,
+ Tcl_Obj *CONST objv[])
{
register int i;
CONST char **argv;
- if (argc <= 0) {
+ if (objc <= 0) {
return NULL;
}
- argv = (CONST char **) ckalloc((argc+1) * sizeof(char *));
- for (i = 0; i < argc; i++) {
- argv[i] = Tcl_GetStringFromObj(objv[i], NULL);
+ argv = (CONST char **) ckalloc((objc+1) * sizeof(char *));
+ for (i = 0; i < objc; i++) {
+ argv[i] = Tcl_GetString(objv[i]);
}
- argv[argc] = 0;
+ argv[objc] = 0;
return argv;
}
@@ -5598,16 +5437,15 @@ GetStringsFromObjs(argc, objv)
*
* Tk_CanvasPsColor --
*
- * This procedure is called by individual canvas items when
- * they want to set a color value for output. Given information
- * about an X color, this procedure will generate Postscript
- * commands to set up an appropriate color in Postscript.
+ * This function is called by individual canvas items when they want to
+ * set a color value for output. Given information about an X color, this
+ * function will generate Postscript commands to set up an appropriate
+ * color in Postscript.
*
* Results:
- * Returns a standard Tcl return value. If an error occurs
- * then an error message will be left in interp->result.
- * If no error occurs, then additional Postscript will be
- * appended to interp->result.
+ * Returns a standard Tcl return value. If an error occurs then an error
+ * message will be left in interp->result. If no error occurs, then
+ * additional Postscript will be appended to interp->result.
*
* Side effects:
* None.
@@ -5616,11 +5454,11 @@ GetStringsFromObjs(argc, objv)
*/
int
-Tk_CanvasPsColor(interp, canvas, colorPtr)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
- XColor *colorPtr; /* Information about color. */
+Tk_CanvasPsColor(
+ Tcl_Interp *interp, /* Interpreter for returning Postscript or
+ * error message. */
+ Tk_Canvas canvas, /* Information about canvas. */
+ XColor *colorPtr) /* Information about color. */
{
return Tk_PostscriptColor(interp, ((TkCanvas *) canvas)->psInfo,
colorPtr);
@@ -5631,31 +5469,30 @@ Tk_CanvasPsColor(interp, canvas, colorPtr)
*
* Tk_CanvasPsFont --
*
- * This procedure is called by individual canvas items when
- * they want to output text. Given information about an X
- * font, this procedure will generate Postscript commands
- * to set up an appropriate font in Postscript.
+ * This function is called by individual canvas items when they want to
+ * output text. Given information about an X font, this function will
+ * generate Postscript commands to set up an appropriate font in
+ * Postscript.
*
* Results:
- * Returns a standard Tcl return value. If an error occurs
- * then an error message will be left in interp->result.
- * If no error occurs, then additional Postscript will be
- * appended to the interp->result.
+ * Returns a standard Tcl return value. If an error occurs then an error
+ * message will be left in interp->result. If no error occurs, then
+ * additional Postscript will be appended to the interp->result.
*
* Side effects:
- * The Postscript font name is entered into psInfoPtr->fontTable
- * if it wasn't already there.
+ * The Postscript font name is entered into psInfoPtr->fontTable if it
+ * wasn't already there.
*
*--------------------------------------------------------------
*/
int
-Tk_CanvasPsFont(interp, canvas, tkfont)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
- Tk_Font tkfont; /* Information about font in which text
- * is to be printed. */
+Tk_CanvasPsFont(
+ Tcl_Interp *interp, /* Interpreter for returning Postscript or
+ * error message. */
+ Tk_Canvas canvas, /* Information about canvas. */
+ Tk_Font tkfont) /* Information about font in which text is to
+ * be printed. */
{
return Tk_PostscriptFont(interp, ((TkCanvas *) canvas)->psInfo, tkfont);
}
@@ -5665,16 +5502,14 @@ Tk_CanvasPsFont(interp, canvas, tkfont)
*
* Tk_CanvasPsBitmap --
*
- * This procedure is called to output the contents of a
- * sub-region of a bitmap in proper image data format for
- * Postscript (i.e. data between angle brackets, one bit
- * per pixel).
+ * This function is called to output the contents of a sub-region of a
+ * bitmap in proper image data format for Postscript (i.e. data between
+ * angle brackets, one bit per pixel).
*
* Results:
- * Returns a standard Tcl return value. If an error occurs
- * then an error message will be left in interp->result.
- * If no error occurs, then additional Postscript will be
- * appended to interp->result.
+ * Returns a standard Tcl return value. If an error occurs then an error
+ * message will be left in interp->result. If no error occurs, then
+ * additional Postscript will be appended to interp->result.
*
* Side effects:
* None.
@@ -5683,15 +5518,14 @@ Tk_CanvasPsFont(interp, canvas, tkfont)
*/
int
-Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
- Pixmap bitmap; /* Bitmap for which to generate
- * Postscript. */
- int startX, startY; /* Coordinates of upper-left corner
- * of rectangular region to output. */
- int width, height; /* Height of rectangular region. */
+Tk_CanvasPsBitmap(
+ Tcl_Interp *interp, /* Interpreter for returning Postscript or
+ * error message. */
+ Tk_Canvas canvas, /* Information about canvas. */
+ Pixmap bitmap, /* Bitmap for which to generate Postscript. */
+ int startX, int startY, /* Coordinates of upper-left corner of
+ * rectangular region to output. */
+ int width, int height) /* Size of rectangular region. */
{
return Tk_PostscriptBitmap(interp, ((TkCanvas *) canvas)->tkwin,
((TkCanvas *) canvas)->psInfo, bitmap, startX, startY,
@@ -5703,18 +5537,16 @@ Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
*
* Tk_CanvasPsStipple --
*
- * This procedure is called by individual canvas items when
- * they have created a path that they'd like to be filled with
- * a stipple pattern. Given information about an X bitmap,
- * this procedure will generate Postscript commands to fill
- * the current clip region using a stipple pattern defined by the
- * bitmap.
+ * This function is called by individual canvas items when they have
+ * created a path that they'd like to be filled with a stipple pattern.
+ * Given information about an X bitmap, this function will generate
+ * Postscript commands to fill the current clip region using a stipple
+ * pattern defined by the bitmap.
*
* Results:
- * Returns a standard Tcl return value. If an error occurs
- * then an error message will be left in interp->result.
- * If no error occurs, then additional Postscript will be
- * appended to interp->result.
+ * Returns a standard Tcl return value. If an error occurs then an error
+ * message will be left in interp->result. If no error occurs, then
+ * additional Postscript will be appended to interp->result.
*
* Side effects:
* None.
@@ -5723,11 +5555,11 @@ Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
*/
int
-Tk_CanvasPsStipple(interp, canvas, bitmap)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
- Pixmap bitmap; /* Bitmap to use for stippling. */
+Tk_CanvasPsStipple(
+ Tcl_Interp *interp, /* Interpreter for returning Postscript or
+ * error message. */
+ Tk_Canvas canvas, /* Information about canvas. */
+ Pixmap bitmap) /* Bitmap to use for stippling. */
{
return Tk_PostscriptStipple(interp, ((TkCanvas *) canvas)->tkwin,
((TkCanvas *) canvas)->psInfo, bitmap);
@@ -5738,12 +5570,11 @@ Tk_CanvasPsStipple(interp, canvas, bitmap)
*
* Tk_CanvasPsY --
*
- * Given a y-coordinate in canvas coordinates, this procedure
- * returns a y-coordinate to use for Postscript output.
+ * Given a y-coordinate in canvas coordinates, this function returns a
+ * y-coordinate to use for Postscript output.
*
* Results:
- * Returns the Postscript coordinate that corresponds to
- * "y".
+ * Returns the Postscript coordinate that corresponds to "y".
*
* Side effects:
* None.
@@ -5752,10 +5583,10 @@ Tk_CanvasPsStipple(interp, canvas, bitmap)
*/
double
-Tk_CanvasPsY(canvas, y)
- Tk_Canvas canvas; /* Token for canvas on whose behalf
- * Postscript is being generated. */
- double y; /* Y-coordinate in canvas coords. */
+Tk_CanvasPsY(
+ Tk_Canvas canvas, /* Token for canvas on whose behalf Postscript
+ * is being generated. */
+ double y) /* Y-coordinate in canvas coords. */
{
return Tk_PostscriptY(y, ((TkCanvas *) canvas)->psInfo);
}
@@ -5765,8 +5596,8 @@ Tk_CanvasPsY(canvas, y)
*
* Tk_CanvasPsPath --
*
- * Given an array of points for a path, generate Postscript
- * commands to create the path.
+ * Given an array of points for a path, generate Postscript commands to
+ * create the path.
*
* Results:
* Postscript commands get appended to what's in interp->result.
@@ -5778,16 +5609,23 @@ Tk_CanvasPsY(canvas, y)
*/
void
-Tk_CanvasPsPath(interp, canvas, coordPtr, numPoints)
- Tcl_Interp *interp; /* Put generated Postscript in this
- * interpreter's result field. */
- Tk_Canvas canvas; /* Canvas on whose behalf Postscript
- * is being generated. */
- double *coordPtr; /* Pointer to first in array of
- * 2*numPoints coordinates giving
- * points for path. */
- int numPoints; /* Number of points at *coordPtr. */
+Tk_CanvasPsPath(
+ Tcl_Interp *interp, /* Put generated Postscript in this
+ * interpreter's result field. */
+ Tk_Canvas canvas, /* Canvas on whose behalf Postscript is being
+ * generated. */
+ double *coordPtr, /* Pointer to first in array of 2*numPoints
+ * coordinates giving points for path. */
+ int numPoints) /* Number of points at *coordPtr. */
{
Tk_PostscriptPath(interp, ((TkCanvas *) canvas)->psInfo,
coordPtr, numPoints);
}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */