diff options
Diffstat (limited to 'generic/tkCanvas.c')
| -rw-r--r-- | generic/tkCanvas.c | 1757 |
1 files changed, 1046 insertions, 711 deletions
diff --git a/generic/tkCanvas.c b/generic/tkCanvas.c index 8ebe9ba..9c4d60a 100644 --- a/generic/tkCanvas.c +++ b/generic/tkCanvas.c @@ -75,7 +75,7 @@ typedef struct TagSearch { * return NULL. */ int type; /* Search type (see #defs below) */ int id; /* Item id for searches by id */ - char *string; /* Tag expression string */ + const 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) */ @@ -100,112 +100,109 @@ typedef struct TagSearch { * Custom option for handling "-state" and "-offset" */ -static Tk_CustomOption stateOption = { - (Tk_OptionParseProc *) TkStateParseProc, - TkStatePrintProc, - (ClientData) NULL /* only "normal" and "disabled" */ +static const Tk_CustomOption stateOption = { + TkStateParseProc, TkStatePrintProc, + NULL /* Only "normal" and "disabled". */ }; -static Tk_CustomOption offsetOption = { - (Tk_OptionParseProc *) TkOffsetParseProc, - TkOffsetPrintProc, - (ClientData) TK_OFFSET_RELATIVE +static const Tk_CustomOption offsetOption = { + TkOffsetParseProc, TkOffsetPrintProc, INT2PTR(TK_OFFSET_RELATIVE) }; /* * Information used for argv parsing. */ -static Tk_ConfigSpec configSpecs[] = { +static const Tk_ConfigSpec configSpecs[] = { {TK_CONFIG_BORDER, "-background", "background", "Background", DEF_CANVAS_BG_COLOR, Tk_Offset(TkCanvas, bgBorder), - TK_CONFIG_COLOR_ONLY}, + TK_CONFIG_COLOR_ONLY, NULL}, {TK_CONFIG_BORDER, "-background", "background", "Background", DEF_CANVAS_BG_MONO, Tk_Offset(TkCanvas, bgBorder), - TK_CONFIG_MONO_ONLY}, - {TK_CONFIG_SYNONYM, "-bd", "borderWidth", NULL, NULL, 0, 0}, - {TK_CONFIG_SYNONYM, "-bg", "background", NULL, NULL, 0, 0}, + TK_CONFIG_MONO_ONLY, NULL}, + {TK_CONFIG_SYNONYM, "-bd", "borderWidth", NULL, NULL, 0, 0, NULL}, + {TK_CONFIG_SYNONYM, "-bg", "background", NULL, NULL, 0, 0, NULL}, {TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth", - DEF_CANVAS_BORDER_WIDTH, Tk_Offset(TkCanvas, borderWidth), 0}, + DEF_CANVAS_BORDER_WIDTH, Tk_Offset(TkCanvas, borderWidth), 0, NULL}, {TK_CONFIG_DOUBLE, "-closeenough", "closeEnough", "CloseEnough", - DEF_CANVAS_CLOSE_ENOUGH, Tk_Offset(TkCanvas, closeEnough), 0}, + DEF_CANVAS_CLOSE_ENOUGH, Tk_Offset(TkCanvas, closeEnough), 0, NULL}, {TK_CONFIG_BOOLEAN, "-confine", "confine", "Confine", - DEF_CANVAS_CONFINE, Tk_Offset(TkCanvas, confine), 0}, + DEF_CANVAS_CONFINE, Tk_Offset(TkCanvas, confine), 0, NULL}, {TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor", - DEF_CANVAS_CURSOR, Tk_Offset(TkCanvas, cursor), TK_CONFIG_NULL_OK}, + DEF_CANVAS_CURSOR, Tk_Offset(TkCanvas, cursor), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_PIXELS, "-height", "height", "Height", - DEF_CANVAS_HEIGHT, Tk_Offset(TkCanvas, height), 0}, + DEF_CANVAS_HEIGHT, Tk_Offset(TkCanvas, height), 0, NULL}, {TK_CONFIG_COLOR, "-highlightbackground", "highlightBackground", "HighlightBackground", DEF_CANVAS_HIGHLIGHT_BG, - Tk_Offset(TkCanvas, highlightBgColorPtr), 0}, + Tk_Offset(TkCanvas, highlightBgColorPtr), 0, NULL}, {TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor", - DEF_CANVAS_HIGHLIGHT, Tk_Offset(TkCanvas, highlightColorPtr), 0}, + DEF_CANVAS_HIGHLIGHT, Tk_Offset(TkCanvas, highlightColorPtr), 0, NULL}, {TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness", "HighlightThickness", - DEF_CANVAS_HIGHLIGHT_WIDTH, Tk_Offset(TkCanvas, highlightWidth), 0}, + DEF_CANVAS_HIGHLIGHT_WIDTH, Tk_Offset(TkCanvas, highlightWidth), 0, NULL}, {TK_CONFIG_BORDER, "-insertbackground", "insertBackground", "Foreground", - DEF_CANVAS_INSERT_BG, Tk_Offset(TkCanvas, textInfo.insertBorder), 0}, + DEF_CANVAS_INSERT_BG, Tk_Offset(TkCanvas, textInfo.insertBorder), 0, NULL}, {TK_CONFIG_PIXELS, "-insertborderwidth", "insertBorderWidth", "BorderWidth", DEF_CANVAS_INSERT_BD_COLOR, - Tk_Offset(TkCanvas, textInfo.insertBorderWidth), TK_CONFIG_COLOR_ONLY}, + Tk_Offset(TkCanvas, textInfo.insertBorderWidth), TK_CONFIG_COLOR_ONLY, NULL}, {TK_CONFIG_PIXELS, "-insertborderwidth", "insertBorderWidth", "BorderWidth", DEF_CANVAS_INSERT_BD_MONO, - Tk_Offset(TkCanvas, textInfo.insertBorderWidth), TK_CONFIG_MONO_ONLY}, + Tk_Offset(TkCanvas, textInfo.insertBorderWidth), TK_CONFIG_MONO_ONLY, NULL}, {TK_CONFIG_INT, "-insertofftime", "insertOffTime", "OffTime", - DEF_CANVAS_INSERT_OFF_TIME, Tk_Offset(TkCanvas, insertOffTime), 0}, + DEF_CANVAS_INSERT_OFF_TIME, Tk_Offset(TkCanvas, insertOffTime), 0, NULL}, {TK_CONFIG_INT, "-insertontime", "insertOnTime", "OnTime", - DEF_CANVAS_INSERT_ON_TIME, Tk_Offset(TkCanvas, insertOnTime), 0}, + DEF_CANVAS_INSERT_ON_TIME, Tk_Offset(TkCanvas, insertOnTime), 0, NULL}, {TK_CONFIG_PIXELS, "-insertwidth", "insertWidth", "InsertWidth", - DEF_CANVAS_INSERT_WIDTH, Tk_Offset(TkCanvas, textInfo.insertWidth), 0}, + DEF_CANVAS_INSERT_WIDTH, Tk_Offset(TkCanvas, textInfo.insertWidth), 0, NULL}, {TK_CONFIG_CUSTOM, "-offset", "offset", "Offset", "0,0", Tk_Offset(TkCanvas, tsoffset),TK_CONFIG_DONT_SET_DEFAULT, &offsetOption}, {TK_CONFIG_RELIEF, "-relief", "relief", "Relief", - DEF_CANVAS_RELIEF, Tk_Offset(TkCanvas, relief), 0}, + DEF_CANVAS_RELIEF, Tk_Offset(TkCanvas, relief), 0, NULL}, {TK_CONFIG_STRING, "-scrollregion", "scrollRegion", "ScrollRegion", DEF_CANVAS_SCROLL_REGION, Tk_Offset(TkCanvas, regionString), - TK_CONFIG_NULL_OK}, + TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_BORDER, "-selectbackground", "selectBackground", "Foreground", DEF_CANVAS_SELECT_COLOR, Tk_Offset(TkCanvas, textInfo.selBorder), - TK_CONFIG_COLOR_ONLY}, + TK_CONFIG_COLOR_ONLY, NULL}, {TK_CONFIG_BORDER, "-selectbackground", "selectBackground", "Foreground", DEF_CANVAS_SELECT_MONO, Tk_Offset(TkCanvas, textInfo.selBorder), - TK_CONFIG_MONO_ONLY}, + TK_CONFIG_MONO_ONLY, NULL}, {TK_CONFIG_PIXELS, "-selectborderwidth", "selectBorderWidth", "BorderWidth", DEF_CANVAS_SELECT_BD_COLOR, - Tk_Offset(TkCanvas, textInfo.selBorderWidth), TK_CONFIG_COLOR_ONLY}, + Tk_Offset(TkCanvas, textInfo.selBorderWidth), TK_CONFIG_COLOR_ONLY, NULL}, {TK_CONFIG_PIXELS, "-selectborderwidth", "selectBorderWidth", "BorderWidth", DEF_CANVAS_SELECT_BD_MONO, Tk_Offset(TkCanvas, textInfo.selBorderWidth), - TK_CONFIG_MONO_ONLY}, + TK_CONFIG_MONO_ONLY, NULL}, {TK_CONFIG_COLOR, "-selectforeground", "selectForeground", "Background", DEF_CANVAS_SELECT_FG_COLOR, Tk_Offset(TkCanvas, textInfo.selFgColorPtr), - TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK}, + TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_COLOR, "-selectforeground", "selectForeground", "Background", DEF_CANVAS_SELECT_FG_MONO, Tk_Offset(TkCanvas, textInfo.selFgColorPtr), - TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK}, + TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_CUSTOM, "-state", "state", "State", "normal", Tk_Offset(TkCanvas, canvas_state), TK_CONFIG_DONT_SET_DEFAULT, &stateOption}, {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus", DEF_CANVAS_TAKE_FOCUS, Tk_Offset(TkCanvas, takeFocus), - TK_CONFIG_NULL_OK}, + TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_PIXELS, "-width", "width", "Width", - DEF_CANVAS_WIDTH, Tk_Offset(TkCanvas, width), 0}, + DEF_CANVAS_WIDTH, Tk_Offset(TkCanvas, width), 0, NULL}, {TK_CONFIG_STRING, "-xscrollcommand", "xScrollCommand", "ScrollCommand", DEF_CANVAS_X_SCROLL_CMD, Tk_Offset(TkCanvas, xScrollCmd), - TK_CONFIG_NULL_OK}, + TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_PIXELS, "-xscrollincrement", "xScrollIncrement", "ScrollIncrement", DEF_CANVAS_X_SCROLL_INCREMENT, Tk_Offset(TkCanvas, xScrollIncrement), - 0}, + 0, NULL}, {TK_CONFIG_STRING, "-yscrollcommand", "yScrollCommand", "ScrollCommand", DEF_CANVAS_Y_SCROLL_CMD, Tk_Offset(TkCanvas, yScrollCmd), - TK_CONFIG_NULL_OK}, + TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_PIXELS, "-yscrollincrement", "yScrollIncrement", "ScrollIncrement", DEF_CANVAS_Y_SCROLL_INCREMENT, Tk_Offset(TkCanvas, yScrollIncrement), - 0}, - {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0} + 0, NULL}, + {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0, NULL} }; /* @@ -213,8 +210,9 @@ static Tk_ConfigSpec configSpecs[] = { * protected by typeListMutex. */ -static Tk_ItemType *typeList = NULL; /* NULL means initialization hasn't - * been done yet. */ +static Tk_ItemType *typeList = NULL; + /* NULL means initialization hasn't been done + * yet. */ TCL_DECLARE_MUTEX(typeListMutex) #ifndef USE_OLD_TAG_SEARCH @@ -264,32 +262,31 @@ static void CanvasSetOrigin(TkCanvas *canvasPtr, static void CanvasUpdateScrollbars(TkCanvas *canvasPtr); static int CanvasWidgetCmd(ClientData clientData, Tcl_Interp *interp, int argc, - Tcl_Obj *CONST *argv); -static void CanvasWorldChanged( - ClientData instanceData); + 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); + Tcl_Obj *const *argv, int flags); static void DestroyCanvas(char *memPtr); static void DisplayCanvas(ClientData clientData); -static void DoItem(Tcl_Interp *interp, +static void DoItem(Tcl_Obj *accumObj, Tk_Item *itemPtr, Tk_Uid tag); -static void EventuallyRedrawItem(Tk_Canvas canvas, +static void EventuallyRedrawItem(TkCanvas *canvasPtr, Tk_Item *itemPtr); #ifdef USE_OLD_TAG_SEARCH static int FindItems(Tcl_Interp *interp, TkCanvas *canvasPtr, - int argc, Tcl_Obj *CONST *argv, + int argc, Tcl_Obj *const *argv, Tcl_Obj *newTagObj, int first); #else /* USE_OLD_TAG_SEARCH */ static int FindItems(Tcl_Interp *interp, TkCanvas *canvasPtr, - int argc, Tcl_Obj *CONST *argv, + int argc, Tcl_Obj *const *argv, Tcl_Obj *newTagObj, int first, TagSearch **searchPtrPtr); #endif /* USE_OLD_TAG_SEARCH */ static int FindArea(Tcl_Interp *interp, TkCanvas *canvasPtr, - Tcl_Obj *CONST *argv, Tk_Uid uid, int enclosed); + 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 const char** TkGetStringsFromObjs(int argc, Tcl_Obj *const *objv); static void InitCanvas(void); #ifdef USE_OLD_TAG_SEARCH static Tk_Item * NextItem(TagSearch *searchPtr); @@ -323,9 +320,11 @@ static Tk_Item * TagSearchNext(TagSearch *searchPtr); * that can be invoked from generic window code. */ -static Tk_ClassProcs canvasClass = { +static const Tk_ClassProcs canvasClass = { sizeof(Tk_ClassProcs), /* size */ CanvasWorldChanged, /* worldChangedProc */ + NULL, /* createProc */ + NULL /* modalProc */ }; /* @@ -334,10 +333,14 @@ static Tk_ClassProcs canvasClass = { #ifdef USE_OLD_TAG_SEARCH #define FIRST_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \ - (itemPtr) = StartTagSearch(canvasPtr,(objPtr),&search) + 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)) + for (itemPtr = StartTagSearch(canvasPtr, (objPtr), &search); \ + itemPtr != NULL; itemPtr = NextItem(&search)) +#define FIND_ITEMS(objPtr, n) \ + FindItems(interp, canvasPtr, objc, objv, (objPtr), (n)) +#define RELINK_ITEMS(objPtr, itemPtr) \ + RelinkItems(canvasPtr, (objPtr), (itemPtr)) #else /* USE_OLD_TAG_SEARCH */ #define FIRST_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \ if ((result=TagSearchScan(canvasPtr,(objPtr),(searchPtrPtr))) != TCL_OK){ \ @@ -350,8 +353,266 @@ static Tk_ClassProcs canvasClass = { } \ for (itemPtr = TagSearchFirst(*(searchPtrPtr)); \ itemPtr != NULL; itemPtr = TagSearchNext(*(searchPtrPtr))) +#define FIND_ITEMS(objPtr, n) \ + FindItems(interp, canvasPtr, objc, objv, (objPtr), (n), &searchPtr) +#define RELINK_ITEMS(objPtr, itemPtr) \ + result = RelinkItems(canvasPtr, (objPtr), (itemPtr), &searchPtr) #endif /* USE_OLD_TAG_SEARCH */ + +/* + * ---------------------------------------------------------------------- + * + * AlwaysRedraw, ItemConfigure, ItemCoords, etc. -- + * + * Helper functions that make access to canvas item functions simpler. + * Note that these are all inline functions. + * + * ---------------------------------------------------------------------- + */ + +static inline int +AlwaysRedraw( + Tk_Item *itemPtr) +{ + return itemPtr->typePtr->alwaysRedraw & 1; +} + +static inline int +ItemConfigure( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Interp *interp = canvasPtr->interp; + int result; + + if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { + result = itemPtr->typePtr->configProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objc, objv, TK_CONFIG_ARGV_ONLY); + } else { + const char **args = TkGetStringsFromObjs(objc, objv); + + result = itemPtr->typePtr->configProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objc, (Tcl_Obj **) args, TK_CONFIG_ARGV_ONLY); + if (args != NULL) { + ckfree(args); + } + } + return result; +} + +static inline int +ItemConfigInfo( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + Tcl_Obj *fieldName) +{ + return Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin, + itemPtr->typePtr->configSpecs, (char *) itemPtr, + (fieldName ? Tcl_GetString(fieldName) : NULL), 0); +} + +static inline int +ItemConfigValue( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + Tcl_Obj *fieldName) +{ + return Tk_ConfigureValue(canvasPtr->interp, canvasPtr->tkwin, + itemPtr->typePtr->configSpecs, (char *) itemPtr, + Tcl_GetString(fieldName), 0); +} +static inline int +ItemCoords( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Interp *interp = canvasPtr->interp; + int result; + + if (itemPtr->typePtr->coordProc == NULL) { + result = TCL_OK; + } else if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { + result = itemPtr->typePtr->coordProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objc, objv); + } else { + const char **args = TkGetStringsFromObjs(objc, objv); + + result = itemPtr->typePtr->coordProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objc, (Tcl_Obj **) args); + if (args != NULL) { + ckfree(args); + } + } + return result; +} + +static inline int +ItemCreate( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, /* Warning: incomplete! typePtr field must be + * set by this point. */ + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Interp *interp = canvasPtr->interp; + int result; + + if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { + result = itemPtr->typePtr->createProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objc-3, objv+3); + } else { + const char **args = TkGetStringsFromObjs(objc-3, objv+3); + + result = itemPtr->typePtr->createProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objc-3, (Tcl_Obj **) args); + if (args != NULL) { + ckfree(args); + } + } + return result; +} + +static inline void +ItemCursor( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + int index) +{ + itemPtr->typePtr->icursorProc((Tk_Canvas) canvasPtr, itemPtr, index); +} + +static inline void +ItemDelChars( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + int first, + int last) +{ + itemPtr->typePtr->dCharsProc((Tk_Canvas) canvasPtr, itemPtr, first, last); +} + +static inline void +ItemDelete( + TkCanvas *canvasPtr, + Tk_Item *itemPtr) +{ + itemPtr->typePtr->deleteProc((Tk_Canvas) canvasPtr, itemPtr, + canvasPtr->display); +} + +static inline void +ItemDisplay( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + Pixmap pixmap, + int screenX1, int screenY1, + int width, int height) +{ + itemPtr->typePtr->displayProc((Tk_Canvas) canvasPtr, itemPtr, + canvasPtr->display, pixmap, screenX1, screenY1, width, height); +} + +static inline int +ItemIndex( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + Tcl_Obj *objPtr, + int *indexPtr) +{ + Tcl_Interp *interp = canvasPtr->interp; + + if (itemPtr->typePtr->indexProc == NULL) { + return TCL_OK; + } else if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { + return itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, objPtr, indexPtr); + } else { + return itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr, + itemPtr, (Tcl_Obj *) Tcl_GetString(objPtr), indexPtr); + } +} + +static inline void +ItemInsert( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + int beforeThis, + Tcl_Obj *toInsert) +{ + if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { + itemPtr->typePtr->insertProc((Tk_Canvas) canvasPtr, itemPtr, + beforeThis, toInsert); + } else { + itemPtr->typePtr->insertProc((Tk_Canvas) canvasPtr, itemPtr, + beforeThis, (Tcl_Obj *) Tcl_GetString(toInsert)); + } +} + +static inline int +ItemOverlap( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + double rect[]) +{ + return itemPtr->typePtr->areaProc((Tk_Canvas) canvasPtr, itemPtr, rect); +} + +static inline double +ItemPoint( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + double coords[], + double halo) +{ + double dist; + + dist = itemPtr->typePtr->pointProc((Tk_Canvas) canvasPtr, itemPtr, + coords) - halo; + return (dist < 0.0) ? 0.0 : dist; +} + +static inline void +ItemScale( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + double xOrigin, double yOrigin, + double xScale, double yScale) +{ + itemPtr->typePtr->scaleProc((Tk_Canvas) canvasPtr, itemPtr, + xOrigin, yOrigin, xScale, yScale); +} + +static inline int +ItemSelection( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + int offset, + char *buffer, + int maxBytes) +{ + if (itemPtr == NULL || itemPtr->typePtr->selectionProc == NULL) { + return -1; + } + + return itemPtr->typePtr->selectionProc((Tk_Canvas) canvasPtr, itemPtr, + offset, buffer, maxBytes); +} + +static inline void +ItemTranslate( + TkCanvas *canvasPtr, + Tk_Item *itemPtr, + double xDelta, + double yDelta) +{ + itemPtr->typePtr->translateProc((Tk_Canvas) canvasPtr, itemPtr, + xDelta, yDelta); +} /* *-------------------------------------------------------------- @@ -375,9 +636,9 @@ 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. */ + Tcl_Obj *const argv[]) /* Argument objects. */ { - Tk_Window tkwin = (Tk_Window) clientData; + Tk_Window tkwin = clientData; TkCanvas *canvasPtr; Tk_Window newWin; @@ -386,7 +647,7 @@ Tk_CanvasObjCmd( } if (argc < 2) { - Tcl_WrongNumArgs(interp, 1, argv, "pathName ?options?"); + Tcl_WrongNumArgs(interp, 1, argv, "pathName ?-option value ...?"); return TCL_ERROR; } @@ -401,13 +662,13 @@ Tk_CanvasObjCmd( * pointers). */ - canvasPtr = (TkCanvas *) ckalloc(sizeof(TkCanvas)); + canvasPtr = ckalloc(sizeof(TkCanvas)); canvasPtr->tkwin = newWin; canvasPtr->display = Tk_Display(newWin); canvasPtr->interp = interp; canvasPtr->widgetCmd = Tcl_CreateObjCommand(interp, - Tk_PathName(canvasPtr->tkwin), CanvasWidgetCmd, - (ClientData) canvasPtr, CanvasCmdDeletedProc); + Tk_PathName(canvasPtr->tkwin), CanvasWidgetCmd, canvasPtr, + CanvasCmdDeletedProc); canvasPtr->firstItemPtr = NULL; canvasPtr->lastItemPtr = NULL; canvasPtr->borderWidth = 0; @@ -480,21 +741,21 @@ Tk_CanvasObjCmd( Tcl_InitHashTable(&canvasPtr->idTable, TCL_ONE_WORD_KEYS); Tk_SetClass(canvasPtr->tkwin, "Canvas"); - Tk_SetClassProcs(canvasPtr->tkwin, &canvasClass, (ClientData) canvasPtr); + Tk_SetClassProcs(canvasPtr->tkwin, &canvasClass, canvasPtr); Tk_CreateEventHandler(canvasPtr->tkwin, ExposureMask|StructureNotifyMask|FocusChangeMask, - CanvasEventProc, (ClientData) canvasPtr); + CanvasEventProc, canvasPtr); Tk_CreateEventHandler(canvasPtr->tkwin, KeyPressMask|KeyReleaseMask |ButtonPressMask|ButtonReleaseMask|EnterWindowMask |LeaveWindowMask|PointerMotionMask|VirtualEventMask, - CanvasBindProc, (ClientData) canvasPtr); + CanvasBindProc, canvasPtr); Tk_CreateSelHandler(canvasPtr->tkwin, XA_PRIMARY, XA_STRING, - CanvasFetchSelection, (ClientData) canvasPtr, XA_STRING); + CanvasFetchSelection, canvasPtr, XA_STRING); if (ConfigureCanvas(interp, canvasPtr, argc-2, argv+2, 0) != TCL_OK) { goto error; } - Tcl_SetResult(interp, Tk_PathName(canvasPtr->tkwin), TCL_STATIC); + Tcl_SetObjResult(interp, TkNewWindowObj(canvasPtr->tkwin)); return TCL_OK; error: @@ -525,9 +786,9 @@ CanvasWidgetCmd( ClientData clientData, /* Information about canvas widget. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; int c, result; Tk_Item *itemPtr = NULL; /* Initialization needed only to prevent * compiler warning. */ @@ -539,15 +800,16 @@ CanvasWidgetCmd( #endif /* USE_OLD_TAG_SEARCH */ int index; - static CONST char *optionStrings[] = { + static const char *const optionStrings[] = { "addtag", "bbox", "bind", "canvasx", "canvasy", "cget", "configure", "coords", "create", "dchars", "delete", "dtag", "find", "focus", "gettags", "icursor", - "index", "insert", "itemcget", "itemconfigure", - "lower", "move", "postscript", "raise", - "scale", "scan", "select", "type", - "xview", "yview", + "imove", "index", "insert", "itemcget", + "itemconfigure", + "lower", "move", "moveto", "postscript", + "raise", "rchars", "scale", "scan", + "select", "type", "xview", "yview", NULL }; enum options { @@ -555,35 +817,32 @@ CanvasWidgetCmd( CANV_CANVASY, CANV_CGET, CANV_CONFIGURE, CANV_COORDS, CANV_CREATE, CANV_DCHARS, CANV_DELETE, CANV_DTAG, CANV_FIND, CANV_FOCUS, CANV_GETTAGS, CANV_ICURSOR, - CANV_INDEX, CANV_INSERT, CANV_ITEMCGET, CANV_ITEMCONFIGURE, - CANV_LOWER, CANV_MOVE, CANV_POSTSCRIPT,CANV_RAISE, - CANV_SCALE, CANV_SCAN, CANV_SELECT, CANV_TYPE, - CANV_XVIEW, CANV_YVIEW + CANV_IMOVE, CANV_INDEX, CANV_INSERT, CANV_ITEMCGET, + CANV_ITEMCONFIGURE, + CANV_LOWER, CANV_MOVE, CANV_MOVETO, CANV_POSTSCRIPT, + CANV_RAISE, CANV_RCHARS, CANV_SCALE, CANV_SCAN, + CANV_SELECT, CANV_TYPE, CANV_XVIEW, CANV_YVIEW }; if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?"); + Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?"); return TCL_ERROR; } if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0, &index) != TCL_OK) { return TCL_ERROR; } - Tcl_Preserve((ClientData) canvasPtr); + Tcl_Preserve(canvasPtr); result = TCL_OK; switch ((enum options) index) { case CANV_ADDTAG: if (objc < 4) { - Tcl_WrongNumArgs(interp, 2, objv, "tag searchCommand ?arg arg ...?"); + Tcl_WrongNumArgs(interp, 2, objv, "tag searchCommand ?arg ...?"); result = TCL_ERROR; goto done; } -#ifdef USE_OLD_TAG_SEARCH - result = FindItems(interp, canvasPtr, objc, objv, objv[2], 3); -#else /* USE_OLD_TAG_SEARCH */ - result = FindItems(interp, canvasPtr, objc, objv, objv[2], 3, &searchPtr); -#endif /* USE_OLD_TAG_SEARCH */ + result = FIND_ITEMS(objv[2], 3); break; case CANV_BBOX: { @@ -627,10 +886,13 @@ CanvasWidgetCmd( } } if (gotAny) { - char buf[TCL_INTEGER_SPACE * 4]; + Tcl_Obj *resultObjs[4]; - sprintf(buf, "%d %d %d %d", x1, y1, x2, y2); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + resultObjs[0] = Tcl_NewIntObj(x1); + resultObjs[1] = Tcl_NewIntObj(y1); + resultObjs[2] = Tcl_NewIntObj(x2); + resultObjs[3] = Tcl_NewIntObj(y2); + Tcl_SetObjResult(interp, Tcl_NewListObj(4, resultObjs)); } break; } @@ -648,7 +910,7 @@ CanvasWidgetCmd( * tag). */ - object = 0; + object = NULL; #ifdef USE_OLD_TAG_SEARCH if (isdigit(UCHAR(Tcl_GetString(objv[2])[0]))) { int id; @@ -661,19 +923,21 @@ CanvasWidgetCmd( } entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable, (char *) id); if (entryPtr != NULL) { - itemPtr = (Tk_Item *) Tcl_GetHashValue(entryPtr); - object = (ClientData) itemPtr; + itemPtr = Tcl_GetHashValue(entryPtr); + object = itemPtr; } - if (object == 0) { - Tcl_AppendResult(interp, "item \"", Tcl_GetString(objv[2]), - "\" doesn't exist", NULL); + if (object == NULL) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "item \"%s\" doesn't exist", Tcl_GetString(objv[2]))); + Tcl_SetErrorCode(interp, "TK", "LOOKUP", "CANVAS_ITEM", + Tcl_GetString(objv[2]), NULL); result = TCL_ERROR; goto done; } } else { - bindByTag: - object = (ClientData) Tk_GetUid(Tcl_GetString(objv[2])); + bindByTag: + object = Tk_GetUid(Tcl_GetString(objv[2])); } #else /* USE_OLD_TAG_SEARCH */ result = TagSearchScan(canvasPtr, objv[2], &searchPtr); @@ -686,13 +950,15 @@ CanvasWidgetCmd( entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable, (char *) INT2PTR(searchPtr->id)); if (entryPtr != NULL) { - itemPtr = (Tk_Item *) Tcl_GetHashValue(entryPtr); - object = (ClientData) itemPtr; + itemPtr = Tcl_GetHashValue(entryPtr); + object = itemPtr; } if (object == 0) { - Tcl_AppendResult(interp, "item \"", Tcl_GetString(objv[2]), - "\" doesn't exist", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "item \"%s\" doesn't exist", Tcl_GetString(objv[2]))); + Tcl_SetErrorCode(interp, "TK", "LOOKUP", "CANVAS_ITEM", + Tcl_GetString(objv[2]), NULL); result = TCL_ERROR; goto done; } @@ -712,7 +978,7 @@ CanvasWidgetCmd( if (objc == 5) { int append = 0; unsigned long mask; - char* argv4 = Tcl_GetString(objv[4]); + const char *argv4 = Tcl_GetString(objv[4]); if (argv4[0] == 0) { result = Tk_DeleteBinding(interp, canvasPtr->bindingTable, @@ -768,22 +1034,20 @@ CanvasWidgetCmd( |KeyReleaseMask|PointerMotionMask|VirtualEventMask)) { Tk_DeleteBinding(interp, canvasPtr->bindingTable, 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", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "requested illegal events; only key, button, motion," + " enter, leave, and virtual events may be used", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "BAD_EVENTS", NULL); result = TCL_ERROR; goto done; } } else if (objc == 4) { - CONST char *command; + const char *command; command = Tk_GetBinding(interp, canvasPtr->bindingTable, object, Tcl_GetString(objv[3])); if (command == NULL) { - CONST char *string; - - string = Tcl_GetStringResult(interp); + const char *string = Tcl_GetString(Tcl_GetObjResult(interp)); /* * Ignore missing binding errors. This is a special hack that @@ -794,11 +1058,10 @@ CanvasWidgetCmd( if (string[0] != '\0') { result = TCL_ERROR; goto done; - } else { - Tcl_ResetResult(interp); } + Tcl_ResetResult(interp); } else { - Tcl_SetResult(interp, (char *) command, TCL_STATIC); + Tcl_SetObjResult(interp, Tcl_NewStringObj(command, -1)); } } else { Tk_GetAllBindings(interp, canvasPtr->bindingTable, object); @@ -808,20 +1071,20 @@ CanvasWidgetCmd( case CANV_CANVASX: { int x; double grid; - char buf[TCL_DOUBLE_SPACE]; if ((objc < 3) || (objc > 4)) { Tcl_WrongNumArgs(interp, 2, objv, "screenx ?gridspacing?"); result = TCL_ERROR; goto done; } - if (Tk_GetPixelsFromObj(interp, canvasPtr->tkwin, objv[2], &x) != TCL_OK) { + if (Tk_GetPixelsFromObj(interp, canvasPtr->tkwin, objv[2], + &x) != TCL_OK) { result = TCL_ERROR; goto done; } if (objc == 4) { - if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[3], - &grid) != TCL_OK) { + if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[3], &grid) != TCL_OK) { result = TCL_ERROR; goto done; } @@ -829,21 +1092,20 @@ CanvasWidgetCmd( grid = 0.0; } x += canvasPtr->xOrigin; - Tcl_PrintDouble(interp, GridAlign((double) x, grid), buf); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + Tcl_SetObjResult(interp, Tcl_NewDoubleObj(GridAlign((double)x,grid))); break; } case CANV_CANVASY: { int y; double grid; - char buf[TCL_DOUBLE_SPACE]; if ((objc < 3) || (objc > 4)) { Tcl_WrongNumArgs(interp, 2, objv, "screeny ?gridspacing?"); result = TCL_ERROR; goto done; } - if (Tk_GetPixelsFromObj(interp, canvasPtr->tkwin, objv[2], &y) != TCL_OK) { + if (Tk_GetPixelsFromObj(interp, canvasPtr->tkwin, objv[2], + &y) != TCL_OK) { result = TCL_ERROR; goto done; } @@ -857,8 +1119,7 @@ CanvasWidgetCmd( grid = 0.0; } y += canvasPtr->yOrigin; - Tcl_PrintDouble(interp, GridAlign((double) y, grid), buf); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + Tcl_SetObjResult(interp, Tcl_NewDoubleObj(GridAlign((double)y,grid))); break; } case CANV_CGET: @@ -891,78 +1152,152 @@ CanvasWidgetCmd( 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 = 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); - } - } + EventuallyRedrawItem(canvasPtr, itemPtr); } + result = ItemCoords(canvasPtr, itemPtr, objc-3, objv+3); if (objc != 3) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); + } + } + break; + case CANV_IMOVE: { + double ignored; + Tcl_Obj *tmpObj; + + if (objc != 6) { + Tcl_WrongNumArgs(interp, 2, objv, "tagOrId index x y"); + result = TCL_ERROR; + goto done; + } + if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[4], &ignored) != TCL_OK + || Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[5], &ignored) != TCL_OK) { + result = TCL_ERROR; + goto done; + } + + /* + * Make a temporary object here that we can reuse for all the + * modifications in the loop. + */ + + tmpObj = Tcl_NewListObj(2, objv+4); + + FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto doneImove) { + int index; + int x1,x2,y1,y2; + int dontRedraw1,dontRedraw2; + + /* + * The TK_MOVABLE_POINTS flag should only be set for types that + * support the same semantics of index, dChars and insert methods + * as lines and canvases. + */ + + if (itemPtr == NULL || + !(itemPtr->typePtr->alwaysRedraw & TK_MOVABLE_POINTS)) { + continue; + } + + result = ItemIndex(canvasPtr, itemPtr, objv[3], &index); + if (result != TCL_OK) { + break; } + + /* + * Redraw both item's old and new areas: it's possible that a + * replace could result in a new area larger than the old area. + * Except if the dCharsProc or insertProc sets the + * TK_ITEM_DONT_REDRAW flag, nothing more needs to be done. + */ + + x1 = itemPtr->x1; y1 = itemPtr->y1; + x2 = itemPtr->x2; y2 = itemPtr->y2; + + itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; + ItemDelChars(canvasPtr, itemPtr, index, index); + dontRedraw1=itemPtr->redraw_flags & TK_ITEM_DONT_REDRAW; + + itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; + ItemInsert(canvasPtr, itemPtr, index, tmpObj); + dontRedraw2=itemPtr->redraw_flags & TK_ITEM_DONT_REDRAW; + + if (!(dontRedraw1 && dontRedraw2)) { + Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, + x1, y1, x2, y2); + EventuallyRedrawItem(canvasPtr, itemPtr); + } + itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; } + + doneImove: + Tcl_DecrRefCount(tmpObj); break; + } case CANV_CREATE: { Tk_ItemType *typePtr; Tk_ItemType *matchPtr = NULL; Tk_Item *itemPtr; - char buf[TCL_INTEGER_SPACE]; int isNew = 0; Tcl_HashEntry *entryPtr; - char *arg; - int length; + const char *arg; + size_t length; if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "type coords ?arg arg ...?"); + Tcl_WrongNumArgs(interp, 2, objv, "type coords ?arg ...?"); result = TCL_ERROR; goto done; } - arg = Tcl_GetStringFromObj(objv[2], &length); + arg = Tcl_GetString(objv[2]); + length = objv[2]->length; c = arg[0]; + + /* + * Lock because the list of types is a global resource that could be + * updated by another thread. That's fairly unlikely, but not + * impossible. + */ + Tcl_MutexLock(&typeListMutex); - for (typePtr = typeList; typePtr != NULL; typePtr = typePtr->nextPtr) { + for (typePtr = typeList; typePtr != NULL; typePtr = typePtr->nextPtr){ if ((c == typePtr->name[0]) - && (strncmp(arg, typePtr->name, (unsigned)length) == 0)) { + && (!strncmp(arg, typePtr->name, length))) { if (matchPtr != NULL) { Tcl_MutexUnlock(&typeListMutex); - badType: - Tcl_AppendResult(interp, - "unknown or ambiguous item type \"",arg,"\"",NULL); - result = TCL_ERROR; - goto done; + goto badType; } matchPtr = typePtr; } } + /* - * Can unlock now because we no longer look at the fields of - * the matched item type that are potentially modified by - * other threads. + * Can unlock now because we no longer look at the fields of the + * matched item type that are potentially modified by other threads. */ + Tcl_MutexUnlock(&typeListMutex); if (matchPtr == NULL) { - goto badType; + badType: + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "unknown or ambiguous item type \"%s\"", arg)); + Tcl_SetErrorCode(interp, "TK", "LOOKUP", "CANVAS_ITEM_TYPE", arg, + NULL); + result = TCL_ERROR; + goto done; } if (objc < 4) { /* * Allow more specific error return. */ - Tcl_WrongNumArgs(interp, 3, objv, "coords ?arg arg ...?"); + + Tcl_WrongNumArgs(interp, 3, objv, "coords ?arg ...?"); result = TCL_ERROR; goto done; } + typePtr = matchPtr; - itemPtr = (Tk_Item *) ckalloc((unsigned) typePtr->itemSize); + itemPtr = ckalloc(typePtr->itemSize); itemPtr->id = canvasPtr->nextId; canvasPtr->nextId++; itemPtr->tagPtr = itemPtr->staticTagSpace; @@ -971,22 +1306,13 @@ CanvasWidgetCmd( itemPtr->typePtr = typePtr; itemPtr->state = TK_STATE_NULL; itemPtr->redraw_flags = 0; - if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { - result = (*typePtr->createProc)(interp, (Tk_Canvas) canvasPtr, - itemPtr, objc-3, objv+3); - } else { - CONST char **args = TkGetStringsFromObjs(objc-3, objv+3); - result = (*typePtr->createProc)(interp, (Tk_Canvas) canvasPtr, - itemPtr, objc-3, (Tcl_Obj **) args); - if (args != NULL) { - ckfree((char *) args); - } - } - if (result != TCL_OK) { - ckfree((char *) itemPtr); + + if (ItemCreate(canvasPtr, itemPtr, objc, objv) != TCL_OK) { + ckfree(itemPtr); result = TCL_ERROR; goto done; } + itemPtr->nextPtr = NULL; entryPtr = Tcl_CreateHashEntry(&canvasPtr->idTable, (char *) INT2PTR(itemPtr->id), &isNew); @@ -1001,10 +1327,9 @@ CanvasWidgetCmd( } canvasPtr->lastItemPtr = itemPtr; itemPtr->redraw_flags |= FORCE_REDRAW; - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); canvasPtr->flags |= REPICK_NEEDED; - sprintf(buf, "%d", itemPtr->id); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + Tcl_SetObjResult(interp, Tcl_NewIntObj(itemPtr->id)); break; } case CANV_DCHARS: { @@ -1021,28 +1346,12 @@ CanvasWidgetCmd( || (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); - } else { - result = itemPtr->typePtr->indexProc(interp, - (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[3]), - &first); - } + result = ItemIndex(canvasPtr, itemPtr, 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); - } else { - result = itemPtr->typePtr->indexProc(interp, - (Tk_Canvas) canvasPtr, itemPtr, - Tcl_GetString(objv[4]), &last); - } + result = ItemIndex(canvasPtr, itemPtr, objv[4], &last); if (result != TCL_OK) { goto done; } @@ -1060,12 +1369,11 @@ CanvasWidgetCmd( x1 = itemPtr->x1; y1 = itemPtr->y1; x2 = itemPtr->x2; y2 = itemPtr->y2; itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; - (*itemPtr->typePtr->dCharsProc)((Tk_Canvas) canvasPtr, - itemPtr, first, last); + ItemDelChars(canvasPtr, itemPtr, first, last); if (!(itemPtr->redraw_flags & TK_ITEM_DONT_REDRAW)) { Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, x1, y1, x2, y2); - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); } itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; } @@ -1077,15 +1385,13 @@ CanvasWidgetCmd( for (i = 2; i < objc; i++) { FOR_EVERY_CANVAS_ITEM_MATCHING(objv[i], &searchPtr, goto done) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); if (canvasPtr->bindingTable != NULL) { - Tk_DeleteAllBindings(canvasPtr->bindingTable, - (ClientData) itemPtr); + Tk_DeleteAllBindings(canvasPtr->bindingTable, itemPtr); } - (*itemPtr->typePtr->deleteProc)((Tk_Canvas) canvasPtr, itemPtr, - canvasPtr->display); + ItemDelete(canvasPtr, itemPtr); if (itemPtr->tagPtr != itemPtr->staticTagSpace) { - ckfree((char *) itemPtr->tagPtr); + ckfree(itemPtr->tagPtr); } entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable, (char *) INT2PTR(itemPtr->id)); @@ -1105,7 +1411,7 @@ CanvasWidgetCmd( if (canvasPtr->lastItemPtr == itemPtr) { canvasPtr->lastItemPtr = itemPtr->prevPtr; } - ckfree((char *) itemPtr); + ckfree(itemPtr); if (itemPtr == canvasPtr->currentItemPtr) { canvasPtr->currentItemPtr = NULL; canvasPtr->flags |= REPICK_NEEDED; @@ -1154,16 +1460,11 @@ CanvasWidgetCmd( } case CANV_FIND: if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "searchCommand ?arg arg ...?"); + Tcl_WrongNumArgs(interp, 2, objv, "searchCommand ?arg ...?"); result = TCL_ERROR; goto done; } -#ifdef USE_OLD_TAG_SEARCH - result = FindItems(interp, canvasPtr, objc, objv, NULL, 2); -#else /* USE_OLD_TAG_SEARCH */ - result = FindItems(interp, canvasPtr, objc, objv, NULL, 2, - &searchPtr); -#endif /* USE_OLD_TAG_SEARCH */ + result = FIND_ITEMS(NULL, 2); break; case CANV_FOCUS: if (objc > 3) { @@ -1174,15 +1475,12 @@ CanvasWidgetCmd( itemPtr = canvasPtr->textInfo.focusItemPtr; if (objc == 2) { if (itemPtr != NULL) { - char buf[TCL_INTEGER_SPACE]; - - sprintf(buf, "%d", itemPtr->id); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + Tcl_SetObjResult(interp, Tcl_NewIntObj(itemPtr->id)); } goto done; } - if ((itemPtr != NULL) && (canvasPtr->textInfo.gotFocus)) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + if (canvasPtr->textInfo.gotFocus) { + EventuallyRedrawItem(canvasPtr, itemPtr); } if (Tcl_GetString(objv[2])[0] == 0) { canvasPtr->textInfo.focusItemPtr = NULL; @@ -1198,7 +1496,7 @@ CanvasWidgetCmd( } canvasPtr->textInfo.focusItemPtr = itemPtr; if (canvasPtr->textInfo.gotFocus) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); } break; case CANV_GETTAGS: @@ -1210,9 +1508,13 @@ CanvasWidgetCmd( FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done); if (itemPtr != NULL) { int i; + Tcl_Obj *resultObj = Tcl_NewObj(); + for (i = 0; i < itemPtr->numTags; i++) { - Tcl_AppendElement(interp, (char *) itemPtr->tagPtr[i]); + Tcl_ListObjAppendElement(NULL, resultObj, + Tcl_NewStringObj(itemPtr->tagPtr[i], -1)); } + Tcl_SetObjResult(interp, resultObj); } break; case CANV_ICURSOR: { @@ -1228,30 +1530,20 @@ CanvasWidgetCmd( || (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); - } else { - result = itemPtr->typePtr->indexProc(interp, - (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[3]), - &index); - } + result = ItemIndex(canvasPtr, itemPtr, objv[3], &index); if (result != TCL_OK) { goto done; } - (*itemPtr->typePtr->icursorProc)((Tk_Canvas) canvasPtr, itemPtr, - index); + ItemCursor(canvasPtr, itemPtr, index); if ((itemPtr == canvasPtr->textInfo.focusItemPtr) && (canvasPtr->textInfo.cursorOn)) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); } } break; } case CANV_INDEX: { int index; - char buf[TCL_INTEGER_SPACE]; if (objc != 4) { Tcl_WrongNumArgs(interp, 2, objv, "tagOrId string"); @@ -1264,23 +1556,18 @@ CanvasWidgetCmd( } } if (itemPtr == NULL) { - Tcl_AppendResult(interp, "can't find an indexable item \"", - Tcl_GetString(objv[2]), "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't find an indexable item \"%s\"", + Tcl_GetString(objv[2]))); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "INDEXABLE_ITEM", NULL); result = TCL_ERROR; goto done; } - if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { - result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr, - itemPtr, (char *) objv[3], &index); - } else { - result = itemPtr->typePtr->indexProc(interp, (Tk_Canvas) canvasPtr, - itemPtr, Tcl_GetString(objv[3]), &index); - } + result = ItemIndex(canvasPtr, itemPtr, objv[3], &index); if (result != TCL_OK) { goto done; } - sprintf(buf, "%d", index); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + Tcl_SetObjResult(interp, Tcl_NewIntObj(index)); break; } case CANV_INSERT: { @@ -1297,15 +1584,7 @@ CanvasWidgetCmd( || (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); - } else { - result = itemPtr->typePtr->indexProc(interp, - (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[3]), - &beforeThis); - } + result = ItemIndex(canvasPtr, itemPtr, objv[3], &beforeThis); if (result != TCL_OK) { goto done; } @@ -1320,17 +1599,11 @@ CanvasWidgetCmd( x1 = itemPtr->x1; y1 = itemPtr->y1; x2 = itemPtr->x2; y2 = itemPtr->y2; itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; - if (itemPtr->typePtr->alwaysRedraw & TK_CONFIG_OBJS) { - (*itemPtr->typePtr->insertProc)((Tk_Canvas) canvasPtr, - itemPtr, beforeThis, (char *) objv[4]); - } else { - (*itemPtr->typePtr->insertProc)((Tk_Canvas) canvasPtr, - itemPtr, beforeThis, Tcl_GetString(objv[4])); - } + ItemInsert(canvasPtr, itemPtr, beforeThis, objv[4]); if (!(itemPtr->redraw_flags & TK_ITEM_DONT_REDRAW)) { Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, x1, y1, x2, y2); - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); } itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; } @@ -1344,42 +1617,24 @@ CanvasWidgetCmd( } 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_GetString(objv[3]), 0); + result = ItemConfigValue(canvasPtr, itemPtr, objv[3]); } break; case CANV_ITEMCONFIGURE: if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "tagOrId ?option value ...?"); + Tcl_WrongNumArgs(interp, 2, objv, "tagOrId ?-option value ...?"); result = TCL_ERROR; goto done; } 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, - NULL, 0); + result = ItemConfigInfo(canvasPtr, itemPtr, NULL); } else if (objc == 4) { - result = Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin, - itemPtr->typePtr->configSpecs, (char *) itemPtr, - Tcl_GetString(objv[3]), 0); + result = ItemConfigInfo(canvasPtr, itemPtr, objv[3]); } 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); - } else { - 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); + EventuallyRedrawItem(canvasPtr, itemPtr); + result = ItemConfigure(canvasPtr, itemPtr, objc-3, objv+3); + EventuallyRedrawItem(canvasPtr, itemPtr); canvasPtr->flags |= REPICK_NEEDED; } if ((result != TCL_OK) || (objc < 5)) { @@ -1405,18 +1660,16 @@ CanvasWidgetCmd( } else { 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", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "tagOrId \"%s\" doesn't match any items", + Tcl_GetString(objv[3]))); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "ITEM", NULL); result = TCL_ERROR; goto done; } itemPtr = itemPtr->prevPtr; } -#ifdef USE_OLD_TAG_SEARCH - RelinkItems(canvasPtr, objv[2], itemPtr); -#else /* USE_OLD_TAG_SEARCH */ - result = RelinkItems(canvasPtr, objv[2], itemPtr, &searchPtr); -#endif /* USE_OLD_TAG_SEARCH */ + RELINK_ITEMS(objv[2], itemPtr); break; } case CANV_MOVE: { @@ -1434,20 +1687,82 @@ CanvasWidgetCmd( goto done; } 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); - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); + ItemTranslate(canvasPtr, itemPtr, xAmount, yAmount); + EventuallyRedrawItem(canvasPtr, itemPtr); canvasPtr->flags |= REPICK_NEEDED; } break; } + case CANV_MOVETO: { + int xBlank, yBlank; + double xAmount, yAmount; + double oldX = 0, oldY = 0, newX, newY; + + if (objc != 5) { + Tcl_WrongNumArgs(interp, 2, objv, "tagOrId x y"); + result = TCL_ERROR; + goto done; + } + + xBlank = 0; + if (Tcl_GetString(objv[3])[0] == '\0') { + xBlank = 1; + } else if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[3], &newX) != TCL_OK) { + result = TCL_ERROR; + goto done; + } + + yBlank = 0; + if (Tcl_GetString(objv[4])[0] == '\0') { + yBlank = 1; + } else if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[4], &newY) != TCL_OK) { + result = TCL_ERROR; + goto done; + } + + FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done); + if (itemPtr != NULL) { + oldX = itemPtr->x1; + oldY = itemPtr->y1; + + /* + * Calculate the displacement. + */ + + if (xBlank) { + xAmount = 0; + } else { + xAmount = newX - oldX; + } + + if (yBlank) { + yAmount = 0; + } else { + yAmount = newY - oldY; + } + + /* + * Move the object(s). + */ + + FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) { + EventuallyRedrawItem(canvasPtr, itemPtr); + ItemTranslate(canvasPtr, itemPtr, xAmount, yAmount); + EventuallyRedrawItem(canvasPtr, itemPtr); + canvasPtr->flags |= REPICK_NEEDED; + } + } + break; + } case CANV_POSTSCRIPT: { - CONST char **args = TkGetStringsFromObjs(objc, objv); + const char **args = TkGetStringsFromObjs(objc, objv); result = TkCanvPostscriptCmd(canvasPtr, interp, objc, args); if (args != NULL) { - ckfree((char *) args); + ckfree(args); } break; } @@ -1472,24 +1787,70 @@ CanvasWidgetCmd( prevPtr = itemPtr; } if (prevPtr == NULL) { - Tcl_AppendResult(interp, "tagOrId \"", Tcl_GetString(objv[3]), - "\" doesn't match any items", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "tagOrId \"%s\" doesn't match any items", + Tcl_GetString(objv[3]))); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "ITEM", NULL); result = TCL_ERROR; goto done; } } -#ifdef USE_OLD_TAG_SEARCH - RelinkItems(canvasPtr, objv[2], prevPtr); -#else /* USE_OLD_TAG_SEARCH */ - result = RelinkItems(canvasPtr, objv[2], prevPtr, &searchPtr); -#endif /* USE_OLD_TAG_SEARCH */ + RELINK_ITEMS(objv[2], prevPtr); + break; + } + case CANV_RCHARS: { + int first, last; + int x1,x2,y1,y2; + + if (objc != 6) { + Tcl_WrongNumArgs(interp, 2, objv, "tagOrId first last string"); + result = TCL_ERROR; + goto done; + } + FOR_EVERY_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done) { + if ((itemPtr->typePtr->indexProc == NULL) + || (itemPtr->typePtr->dCharsProc == NULL) + || (itemPtr->typePtr->insertProc == NULL)) { + continue; + } + result = ItemIndex(canvasPtr, itemPtr, objv[3], &first); + if (result != TCL_OK) { + goto done; + } + result = ItemIndex(canvasPtr, itemPtr, objv[4], &last); + if (result != TCL_OK) { + goto done; + } + + /* + * Redraw both item's old and new areas: it's possible that a + * replace could result in a new area larger than the old area. + * Except if the dCharsProc or insertProc sets the + * TK_ITEM_DONT_REDRAW flag, nothing more needs to be done. + */ + + x1 = itemPtr->x1; y1 = itemPtr->y1; + x2 = itemPtr->x2; y2 = itemPtr->y2; + itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; + + ItemDelChars(canvasPtr, itemPtr, first, last); + ItemInsert(canvasPtr, itemPtr, first, objv[5]); + + if (!(itemPtr->redraw_flags & TK_ITEM_DONT_REDRAW)) { + Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, + x1, y1, x2, y2); + EventuallyRedrawItem(canvasPtr, itemPtr); + } + itemPtr->redraw_flags &= ~TK_ITEM_DONT_REDRAW; + } break; } case CANV_SCALE: { double xOrigin, yOrigin, xScale, yScale; if (objc != 7) { - Tcl_WrongNumArgs(interp, 2, objv, "tagOrId xOrigin yOrigin xScale yScale"); + Tcl_WrongNumArgs(interp, 2, objv, + "tagOrId xOrigin yOrigin xScale yScale"); result = TCL_ERROR; goto done; } @@ -1497,28 +1858,29 @@ CanvasWidgetCmd( objv[3], &xOrigin) != TCL_OK) || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[4], &yOrigin) != TCL_OK) - || (Tcl_GetDoubleFromObj(interp, objv[5], &xScale) != TCL_OK) - || (Tcl_GetDoubleFromObj(interp, objv[6], &yScale) != TCL_OK)) { + || (Tcl_GetDoubleFromObj(interp, objv[5], &xScale)!=TCL_OK) + || (Tcl_GetDoubleFromObj(interp, objv[6], &yScale)!=TCL_OK)) { result = TCL_ERROR; goto done; } if ((xScale == 0.0) || (yScale == 0.0)) { - Tcl_SetResult(interp, "scale factor cannot be zero", TCL_STATIC); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "scale factor cannot be zero", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "BAD_SCALE", NULL); result = TCL_ERROR; goto done; } 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); - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); + ItemScale(canvasPtr, itemPtr, xOrigin, yOrigin, xScale, yScale); + EventuallyRedrawItem(canvasPtr, itemPtr); canvasPtr->flags |= REPICK_NEEDED; } break; } case CANV_SCAN: { int x, y, gain = 10; - static CONST char *optionStrings[] = { + static const char *const optionStrings[] = { "mark", "dragto", NULL }; @@ -1562,7 +1924,7 @@ CanvasWidgetCmd( } case CANV_SELECT: { int index, optionindex; - static CONST char *optionStrings[] = { + static const char *const optionStrings[] = { "adjust", "clear", "from", "item", "to", NULL }; enum options { @@ -1582,23 +1944,17 @@ CanvasWidgetCmd( } } if (itemPtr == NULL) { - Tcl_AppendResult(interp, - "can't find an indexable and selectable item \"", - Tcl_GetString(objv[3]), "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't find an indexable and selectable item \"%s\"", + Tcl_GetString(objv[3]))); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SELECTABLE_ITEM", + 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); - } else { - result = itemPtr->typePtr->indexProc(interp, - (Tk_Canvas) canvasPtr, itemPtr, Tcl_GetString(objv[4]), - &index); - } + result = ItemIndex(canvasPtr, itemPtr, objv[4], &index); if (result != TCL_OK) { goto done; } @@ -1633,12 +1989,8 @@ CanvasWidgetCmd( result = TCL_ERROR; goto done; } - if (canvasPtr->textInfo.selItemPtr != NULL) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, - canvasPtr->textInfo.selItemPtr); - canvasPtr->textInfo.selItemPtr = NULL; - } - goto done; + EventuallyRedrawItem(canvasPtr, canvasPtr->textInfo.selItemPtr); + canvasPtr->textInfo.selItemPtr = NULL; break; case CANV_FROM: if (objc != 5) { @@ -1679,14 +2031,16 @@ CanvasWidgetCmd( } FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done); if (itemPtr != NULL) { - Tcl_SetResult(interp, itemPtr->typePtr->name, TCL_STATIC); + Tcl_SetObjResult(interp, + Tcl_NewStringObj(itemPtr->typePtr->name, -1)); } break; case CANV_XVIEW: { int count, type; - int newX = 0; /* Initialization needed only to prevent - * gcc warnings. */ + int newX = 0; /* Initialization needed only to prevent gcc + * warnings. */ double fraction; + const char **args; if (objc == 2) { Tcl_SetObjResult(interp, ScrollFractions( @@ -1694,45 +2048,45 @@ CanvasWidgetCmd( canvasPtr->xOrigin + Tk_Width(canvasPtr->tkwin) - canvasPtr->inset, canvasPtr->scrollX1, canvasPtr->scrollX2)); - } else { - CONST char **args = TkGetStringsFromObjs(objc, objv); - type = Tk_GetScrollInfo(interp, objc, args, &fraction, &count); - 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 + break; + } + + args = TkGetStringsFromObjs(objc, objv); + type = Tk_GetScrollInfo(interp, objc, args, &fraction, &count); + if (args != NULL) { + ckfree(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_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; } + CanvasSetOrigin(canvasPtr, newX, canvasPtr->yOrigin); break; } case CANV_YVIEW: { int count, type; - int newY = 0; /* Initialization needed only to prevent - * gcc warnings. */ + int newY = 0; /* Initialization needed only to prevent gcc + * warnings. */ double fraction; + const char **args; if (objc == 2) { Tcl_SetObjResult(interp, ScrollFractions( @@ -1740,39 +2094,36 @@ CanvasWidgetCmd( canvasPtr->yOrigin + Tk_Height(canvasPtr->tkwin) - canvasPtr->inset, canvasPtr->scrollY1, canvasPtr->scrollY2)); - } else { - CONST char **args = TkGetStringsFromObjs(objc, objv); - type = Tk_GetScrollInfo(interp, objc, args, &fraction, &count); - 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 - * (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; + } + + args = TkGetStringsFromObjs(objc, objv); + type = Tk_GetScrollInfo(interp, objc, args, &fraction, &count); + if (args != NULL) { + ckfree(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 + * (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)); } - CanvasSetOrigin(canvasPtr, canvasPtr->xOrigin, newY); + break; } + CanvasSetOrigin(canvasPtr, canvasPtr->xOrigin, newY); break; } } @@ -1781,7 +2132,7 @@ CanvasWidgetCmd( #ifndef USE_OLD_TAG_SEARCH TagSearchDestroy(searchPtr); #endif /* not USE_OLD_TAG_SEARCH */ - Tcl_Release((ClientData) canvasPtr); + Tcl_Release(canvasPtr); return result; } @@ -1820,12 +2171,11 @@ DestroyCanvas( for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = canvasPtr->firstItemPtr) { canvasPtr->firstItemPtr = itemPtr->nextPtr; - (*itemPtr->typePtr->deleteProc)((Tk_Canvas) canvasPtr, itemPtr, - canvasPtr->display); + ItemDelete(canvasPtr, itemPtr); if (itemPtr->tagPtr != itemPtr->staticTagSpace) { - ckfree((char *) itemPtr->tagPtr); + ckfree(itemPtr->tagPtr); } - ckfree((char *) itemPtr); + ckfree(itemPtr); } /* @@ -1851,7 +2201,7 @@ DestroyCanvas( } Tk_FreeOptions(configSpecs, (char *) canvasPtr, canvasPtr->display, 0); canvasPtr->tkwin = NULL; - ckfree((char *) canvasPtr); + ckfree(canvasPtr); } /* @@ -1880,7 +2230,7 @@ ConfigureCanvas( 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. */ + Tcl_Obj *const objv[], /* Argument objects. */ int flags) /* Flags to pass to Tk_ConfigureWidget. */ { XGCValues gcValues; @@ -1888,7 +2238,7 @@ ConfigureCanvas( Tk_State old_canvas_state=canvasPtr->canvas_state; if (Tk_ConfigureWidget(interp, canvasPtr->tkwin, configSpecs, - objc, (CONST char **) objv, (char *) canvasPtr, + objc, (const char **) objv, (char *) canvasPtr, flags|TK_CONFIG_OBJS) != TCL_OK) { return TCL_ERROR; } @@ -1936,7 +2286,7 @@ ConfigureCanvas( } } - /* + /* * Reset the desired dimensions for the window. */ @@ -1962,18 +2312,19 @@ ConfigureCanvas( canvasPtr->scrollY2 = 0; if (canvasPtr->regionString != NULL) { int argc2; - CONST char **argv2; + const char **argv2; if (Tcl_SplitList(canvasPtr->interp, canvasPtr->regionString, &argc2, &argv2) != TCL_OK) { return TCL_ERROR; } if (argc2 != 4) { - Tcl_AppendResult(interp, "bad scrollRegion \"", - canvasPtr->regionString, "\"", NULL); - badRegion: + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad scrollRegion \"%s\"", canvasPtr->regionString)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SCROLL_REGION", NULL); + badRegion: ckfree(canvasPtr->regionString); - ckfree((char *) argv2); + ckfree(argv2); canvasPtr->regionString = NULL; return TCL_ERROR; } @@ -1987,7 +2338,7 @@ ConfigureCanvas( argv2[3], &canvasPtr->scrollY2) != TCL_OK)) { goto badRegion; } - ckfree((char *) argv2); + ckfree(argv2); } flags = canvasPtr->tsoffset.flags; @@ -2021,7 +2372,7 @@ ConfigureCanvas( } /* - *--------------------------------------------------------------------------- + *---------------------------------------------------------------------- * * CanvasWorldChanged -- * @@ -2037,24 +2388,19 @@ ConfigureCanvas( * side effect of causing all the items to recompute their geometry and * to be redisplayed. * - *--------------------------------------------------------------------------- + *---------------------------------------------------------------------- */ static void CanvasWorldChanged( ClientData instanceData) /* Information about widget. */ { - TkCanvas *canvasPtr; + TkCanvas *canvasPtr = instanceData; Tk_Item *itemPtr; - int result; - canvasPtr = (TkCanvas *) instanceData; itemPtr = canvasPtr->firstItemPtr; for ( ; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { - result = (*itemPtr->typePtr->configProc)(canvasPtr->interp, - (Tk_Canvas) canvasPtr, itemPtr, 0, NULL, - TK_CONFIG_ARGV_ONLY); - if (result != TCL_OK) { + if (ItemConfigure(canvasPtr, itemPtr, 0, NULL) != TCL_OK) { Tcl_ResetResult(canvasPtr->interp); } } @@ -2066,7 +2412,7 @@ CanvasWorldChanged( } /* - *-------------------------------------------------------------- + *---------------------------------------------------------------------- * * DisplayCanvas -- * @@ -2080,14 +2426,14 @@ CanvasWorldChanged( * Side effects: * Information appears on the screen. * - *-------------------------------------------------------------- + *---------------------------------------------------------------------- */ static void DisplayCanvas( ClientData clientData) /* Information about widget. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; Tk_Window tkwin = canvasPtr->tkwin; Tk_Item *itemPtr; Pixmap pixmap; @@ -2120,11 +2466,11 @@ DisplayCanvas( */ while (canvasPtr->flags & REPICK_NEEDED) { - Tcl_Preserve((ClientData) canvasPtr); + Tcl_Preserve(canvasPtr); canvasPtr->flags &= ~REPICK_NEEDED; PickCurrentItem(canvasPtr, &canvasPtr->pickEvent); tkwin = canvasPtr->tkwin; - Tcl_Release((ClientData) canvasPtr); + Tcl_Release(canvasPtr); if (tkwin == NULL) { return; } @@ -2137,13 +2483,14 @@ DisplayCanvas( */ for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; - itemPtr = itemPtr->nextPtr) { + itemPtr = itemPtr->nextPtr) { if (itemPtr->redraw_flags & FORCE_REDRAW) { itemPtr->redraw_flags &= ~FORCE_REDRAW; - EventuallyRedrawItem((Tk_Canvas)canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); itemPtr->redraw_flags &= ~FORCE_REDRAW; } } + /* * Compute the intersection between the area that needs redrawing and the * area that's visible on the screen. @@ -2241,7 +2588,7 @@ DisplayCanvas( || (itemPtr->y1 >= screenY2) || (itemPtr->x2 < screenX1) || (itemPtr->y2 < screenY1)) { - if (!(itemPtr->typePtr->alwaysRedraw & 1) + if (!AlwaysRedraw(itemPtr) || (itemPtr->x1 >= canvasPtr->redrawX2) || (itemPtr->y1 >= canvasPtr->redrawY2) || (itemPtr->x2 < canvasPtr->redrawX1) @@ -2250,12 +2597,11 @@ DisplayCanvas( } } if (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)) { continue; } - (*itemPtr->typePtr->displayProc)((Tk_Canvas) canvasPtr, itemPtr, - canvasPtr->display, pixmap, screenX1, screenY1, width, + ItemDisplay(canvasPtr, itemPtr, pixmap, screenX1, screenY1, width, height); } @@ -2319,7 +2665,7 @@ DisplayCanvas( } /* - *-------------------------------------------------------------- + *---------------------------------------------------------------------- * * CanvasEventProc -- * @@ -2330,10 +2676,10 @@ DisplayCanvas( * 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 @@ -2341,7 +2687,7 @@ CanvasEventProc( ClientData clientData, /* Information about window. */ XEvent *eventPtr) /* Information about event. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; if (eventPtr->type == Expose) { int x, y; @@ -2366,10 +2712,9 @@ CanvasEventProc( canvasPtr->widgetCmd); } if (canvasPtr->flags & REDRAW_PENDING) { - Tcl_CancelIdleCall(DisplayCanvas, (ClientData) canvasPtr); + Tcl_CancelIdleCall(DisplayCanvas, canvasPtr); } - Tcl_EventuallyFree((ClientData) canvasPtr, - (Tcl_FreeProc *) DestroyCanvas); + Tcl_EventuallyFree(canvasPtr, (Tcl_FreeProc *) DestroyCanvas); } else if (eventPtr->type == ConfigureNotify) { canvasPtr->flags |= UPDATE_SCROLLBARS; @@ -2403,9 +2748,8 @@ CanvasEventProc( for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { - if (itemPtr->typePtr->alwaysRedraw & 1) { - (*itemPtr->typePtr->displayProc)((Tk_Canvas) canvasPtr, - itemPtr, canvasPtr->display, None, 0, 0, 0, 0); + if (AlwaysRedraw(itemPtr)) { + ItemDisplay(canvasPtr, itemPtr, None, 0, 0, 0, 0); } } } @@ -2433,7 +2777,7 @@ static void CanvasCmdDeletedProc( ClientData clientData) /* Pointer to widget record for widget. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; Tk_Window tkwin = canvasPtr->tkwin; /* @@ -2450,7 +2794,7 @@ CanvasCmdDeletedProc( } /* - *-------------------------------------------------------------- + *---------------------------------------------------------------------- * * Tk_CanvasEventuallyRedraw -- * @@ -2463,7 +2807,7 @@ CanvasCmdDeletedProc( * Side effects: * The screen will eventually be refreshed. * - *-------------------------------------------------------------- + *---------------------------------------------------------------------- */ void @@ -2474,7 +2818,7 @@ Tk_CanvasEventuallyRedraw( int x2, int y2) /* Lower right corner of area to redraw. * Pixels on edge are not redrawn. */ { - TkCanvas *canvasPtr = (TkCanvas *) canvas; + TkCanvas *canvasPtr = Canvas(canvas); /* * If tkwin is NULL, the canvas has been destroyed, so we can't really @@ -2512,13 +2856,13 @@ Tk_CanvasEventuallyRedraw( canvasPtr->flags |= BBOX_NOT_EMPTY; } if (!(canvasPtr->flags & REDRAW_PENDING)) { - Tcl_DoWhenIdle(DisplayCanvas, (ClientData) canvasPtr); + Tcl_DoWhenIdle(DisplayCanvas, canvasPtr); canvasPtr->flags |= REDRAW_PENDING; } } /* - *-------------------------------------------------------------- + *---------------------------------------------------------------------- * * EventuallyRedrawItem -- * @@ -2531,21 +2875,24 @@ Tk_CanvasEventuallyRedraw( * Side effects: * The screen will eventually be refreshed. * - *-------------------------------------------------------------- + *---------------------------------------------------------------------- */ static void EventuallyRedrawItem( - Tk_Canvas canvas, /* Information about widget. */ - Tk_Item *itemPtr) /* Item to be redrawn. */ + TkCanvas *canvasPtr, /* Information about widget. */ + Tk_Item *itemPtr) /* Item to be redrawn. May be NULL, in which + * case nothing happens. */ { - TkCanvas *canvasPtr = (TkCanvas *) canvas; + if (itemPtr == NULL) { + return; + } if ((itemPtr->x1 >= itemPtr->x2) || (itemPtr->y1 >= itemPtr->y2) || (itemPtr->x2 < canvasPtr->xOrigin) || (itemPtr->y2 < canvasPtr->yOrigin) || - (itemPtr->x1 >= canvasPtr->xOrigin + Tk_Width(canvasPtr->tkwin)) || - (itemPtr->y1 >= canvasPtr->yOrigin + Tk_Height(canvasPtr->tkwin))) { - if (!(itemPtr->typePtr->alwaysRedraw & 1)) { + (itemPtr->x1 >= canvasPtr->xOrigin+Tk_Width(canvasPtr->tkwin)) || + (itemPtr->y1 >= canvasPtr->yOrigin+Tk_Height(canvasPtr->tkwin))) { + if (!AlwaysRedraw(itemPtr)) { return; } } @@ -2573,13 +2920,13 @@ EventuallyRedrawItem( itemPtr->redraw_flags |= FORCE_REDRAW; } if (!(canvasPtr->flags & REDRAW_PENDING)) { - Tcl_DoWhenIdle(DisplayCanvas, (ClientData) canvasPtr); + Tcl_DoWhenIdle(DisplayCanvas, canvasPtr); canvasPtr->flags |= REDRAW_PENDING; } } /* - *-------------------------------------------------------------- + *---------------------------------------------------------------------- * * Tk_CreateItemType -- * @@ -2595,7 +2942,7 @@ EventuallyRedrawItem( * commands). If there was already a type with the same name as in * typePtr, it is replaced with the new type. * - *-------------------------------------------------------------- + *---------------------------------------------------------------------- */ void @@ -2735,11 +3082,8 @@ StartTagSearch( Tk_Uid uid; char *tag = Tcl_GetString(tagObj); int count; - TkWindow *tkwin; - TkDisplay *dispPtr; - - tkwin = (TkWindow *) canvasPtr->tkwin; - dispPtr = tkwin->dispPtr; + TkWindow *tkwin = (TkWindow *) canvasPtr->tkwin; + TkDisplay *dispPtr = tkwin->dispPtr; /* * Initialize the search. @@ -2767,9 +3111,9 @@ StartTagSearch( if ((itemPtr == NULL) || (itemPtr->id != id) || (lastPtr == NULL) || (lastPtr->nextPtr != itemPtr)) { dispPtr->numSlowSearches++; - entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable, (char *) id); + entryPtr = Tcl_FindHashEntry(&canvasPtr->idTable, (char*) id); if (entryPtr != NULL) { - itemPtr = (Tk_Item *)Tcl_GetHashValue(entryPtr); + itemPtr = Tcl_GetHashValue(entryPtr); lastPtr = itemPtr->prevPtr; } else { lastPtr = itemPtr = NULL; @@ -2925,7 +3269,7 @@ NextItem( static SearchUids * GetStaticUids(void) { - SearchUids *searchUids = (SearchUids *) + SearchUids *searchUids = Tcl_GetThreadData(&dataKey, sizeof(SearchUids)); if (searchUids->allUid == NULL) { @@ -2961,10 +3305,10 @@ static void TagSearchExprInit( TagSearchExpr **exprPtrPtr) { - TagSearchExpr* expr = *exprPtrPtr; + TagSearchExpr *expr = *exprPtrPtr; - if (! expr) { - expr = (TagSearchExpr *) ckalloc(sizeof(TagSearchExpr)); + if (expr == NULL) { + expr = ckalloc(sizeof(TagSearchExpr)); expr->allocated = 0; expr->uids = NULL; expr->next = NULL; @@ -2993,11 +3337,11 @@ static void TagSearchExprDestroy( TagSearchExpr *expr) { - if (expr) { + if (expr != NULL) { if (expr->uids) { - ckfree((char *)expr->uids); + ckfree(expr->uids); } - ckfree((char *)expr); + ckfree(expr); } } @@ -3030,7 +3374,7 @@ TagSearchScan( TagSearch **searchPtrPtr) /* Record describing tag search; will be * initialized here. */ { - char *tag = Tcl_GetString(tagObj); + const char *tag = Tcl_GetString(tagObj); int i; TagSearch *searchPtr; @@ -3038,14 +3382,14 @@ TagSearchScan( * Initialize the search. */ - if (*searchPtrPtr) { + if (*searchPtrPtr != NULL) { searchPtr = *searchPtrPtr; } else { /* * Allocate primary search struct on first call. */ - *searchPtrPtr = searchPtr = (TagSearch *) ckalloc(sizeof(TagSearch)); + *searchPtrPtr = searchPtr = ckalloc(sizeof(TagSearch)); searchPtr->expr = NULL; /* @@ -3055,7 +3399,7 @@ TagSearchScan( searchPtr->rewritebufferAllocated = 100; searchPtr->rewritebuffer = ckalloc(searchPtr->rewritebufferAllocated); } - TagSearchExprInit(&(searchPtr->expr)); + TagSearchExprInit(&searchPtr->expr); /* * How long is the tagOrId? @@ -3067,7 +3411,7 @@ TagSearchScan( * Make sure there is enough buffer to hold rewritten tags. */ - if ((unsigned int)searchPtr->stringLength >= + if ((unsigned) searchPtr->stringLength >= searchPtr->rewritebufferAllocated) { searchPtr->rewritebufferAllocated = searchPtr->stringLength + 100; searchPtr->rewritebuffer = @@ -3105,6 +3449,7 @@ TagSearchScan( * kept forever, but this should be thought of as a cache rather than as a * memory leak. */ + searchPtr->expr->uid = Tk_GetUid(tag); /* @@ -3116,8 +3461,8 @@ TagSearchScan( } /* - * Pre-scan tag for at least one unquoted "&&" "||" "^" "!" - * if not found then use string as simple tag + * Pre-scan tag for at least one unquoted "&&" "||" "^" "!"; if not found + * then use string as simple tag. */ for (i = 0; i < searchPtr->stringLength ; i++) { @@ -3194,12 +3539,12 @@ TagSearchScan( static void TagSearchDestroy( - TagSearch *searchPtr) /* Record describing tag search */ + TagSearch *searchPtr) /* Record describing tag search. */ { if (searchPtr) { TagSearchExprDestroy(searchPtr->expr); - ckfree((char *)searchPtr->rewritebuffer); - ckfree((char *)searchPtr); + ckfree(searchPtr->rewritebuffer); + ckfree(searchPtr); } } @@ -3225,15 +3570,15 @@ TagSearchDestroy( static int TagSearchScanExpr( Tcl_Interp *interp, /* Current interpreter. */ - TagSearch *searchPtr, /* Search data */ - TagSearchExpr *expr) /* compiled expression result */ + 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 */ + * 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. */ @@ -3252,36 +3597,34 @@ TagSearchScanExpr( 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 = ckrealloc(expr->uids, + expr->allocated * sizeof(Tk_Uid)); } else { - expr->uids = (Tk_Uid *) - ckalloc((expr->allocated)*sizeof(Tk_Uid)); + expr->uids = ckalloc(expr->allocated * sizeof(Tk_Uid)); } } if (looking_for_tag) { - switch (c) { - case ' ': /* ignore unquoted whitespace */ + case ' ': /* Ignore unquoted whitespace */ case '\t': case '\n': case '\r': break; - case '!': /* negate next tag or subexpr */ + case '!': /* Negate next tag or subexpr */ if (looking_for_tag > 1) { - Tcl_AppendResult(interp, - "Too many '!' in tag search expression", - NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "too many '!' in tag search expression", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", + "COMPLEXITY", NULL); return TCL_ERROR; } looking_for_tag++; negate_result = 1; break; - case '(': /* scan (negated) subexpr recursively */ + case '(': /* Scan (negated) subexpr recursively */ if (negate_result) { expr->uids[expr->index++] = searchUids->negparenUid; negate_result = 0; @@ -3300,7 +3643,7 @@ TagSearchScanExpr( found_tag = 1; break; - case '"': /* quoted tag string */ + case '"': /* Quoted tag string */ if (negate_result) { expr->uids[expr->index++] = searchUids->negtagvalUid; negate_result = 0; @@ -3320,16 +3663,19 @@ TagSearchScanExpr( } *tag++ = c; } - if (! found_endquote) { - Tcl_AppendResult(interp, - "Missing endquote in tag search expression", - NULL); + if (!found_endquote) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "missing endquote in tag search expression", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", + "ENDQUOTE", NULL); return TCL_ERROR; } - if (! (tag - searchPtr->rewritebuffer)) { - Tcl_AppendResult(interp, - "Null quoted tag string in tag search expression", - NULL); + if (!(tag - searchPtr->rewritebuffer)) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "null quoted tag string in tag search expression", + -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", + "EMPTY", NULL); return TCL_ERROR; } *tag++ = '\0'; @@ -3339,16 +3685,17 @@ TagSearchScanExpr( found_tag = 1; break; - case '&': /* illegal chars when looking for tag */ + case '&': /* Illegal chars when looking for tag */ case '|': case '^': case ')': - Tcl_AppendResult(interp, - "Unexpected operator in tag search expression", - NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "unexpected operator in tag search expression", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", + "UNEXPECTED", NULL); return TCL_ERROR; - default: /* unquoted tag string */ + default: /* Unquoted tag string */ if (negate_result) { expr->uids[expr->index++] = searchUids->negtagvalUid; negate_result = 0; @@ -3395,50 +3742,54 @@ TagSearchScanExpr( found_tag = 1; } - } else { /* ! looking_for_tag */ + } else { /* ! looking_for_tag */ switch (c) { - case ' ': /* ignore whitespace */ + case ' ': /* Ignore whitespace */ case '\t': case '\n': case '\r': break; - case '&': /* AND operator */ + case '&': /* AND operator */ c = searchPtr->string[searchPtr->stringIndex++]; if (c != '&') { - Tcl_AppendResult(interp, - "Singleton '&' in tag search expression", - NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "singleton '&' in tag search expression", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", + "INCOMPLETE_OP", NULL); return TCL_ERROR; } expr->uids[expr->index++] = searchUids->andUid; looking_for_tag = 1; break; - case '|': /* OR operator */ + case '|': /* OR operator */ c = searchPtr->string[searchPtr->stringIndex++]; if (c != '|') { - Tcl_AppendResult(interp, - "Singleton '|' in tag search expression", - NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "singleton '|' in tag search expression", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", + "INCOMPLETE_OP", NULL); return TCL_ERROR; } expr->uids[expr->index++] = searchUids->orUid; looking_for_tag = 1; break; - case '^' : /* XOR operator */ + case '^': /* XOR operator */ expr->uids[expr->index++] = searchUids->xorUid; looking_for_tag = 1; break; - case ')' : /* end subexpression */ + case ')': /* End subexpression */ expr->uids[expr->index++] = searchUids->endparenUid; goto breakwhile; - default: /* syntax error */ - Tcl_AppendResult(interp, - "Invalid boolean operator in tag search expression", + default: /* syntax error */ + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "invalid boolean operator in tag search expression", + -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", "BAD_OP", NULL); return TCL_ERROR; } @@ -3446,10 +3797,12 @@ TagSearchScanExpr( } breakwhile: - if (found_tag && ! looking_for_tag) { + if (found_tag && !looking_for_tag) { return TCL_OK; } - Tcl_AppendResult(interp, "Missing tag in tag search expression", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "missing tag in tag search expression", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "SEARCH", "NO_TAG", NULL); return TCL_ERROR; } @@ -3486,7 +3839,7 @@ TagSearchEvalExpr( * expression terms. */ searchUids = GetStaticUids(); - result = 0; /* just to keep the compiler quiet */ + result = 0; /* Just to keep the compiler quiet. */ negate_result = 0; looking_for_tag = 1; @@ -3521,7 +3874,7 @@ TagSearchEvalExpr( result = 0; /* - * set result 1 if tag is found in item's tags + * set result 1 if tag is found in item's tags. */ for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags; @@ -3534,30 +3887,26 @@ TagSearchEvalExpr( } else if (uid == searchUids->parenUid) { /* - * Evaluate subexpressions with recursion + * Evaluate subexpressions with recursion. */ result = TagSearchEvalExpr(expr, itemPtr); } else if (uid == searchUids->negparenUid) { - negate_result = ! negate_result; + negate_result = !negate_result; /* - * Evaluate subexpressions with recursion + * Evaluate subexpressions with recursion. */ result = TagSearchEvalExpr(expr, itemPtr); -/* - * } else { - * assert(0); - */ } if (negate_result) { result = ! result; negate_result = 0; } looking_for_tag = 0; - } else { /* ! looking_for_tag */ + } else { /* ! looking_for_tag */ if (((uid == searchUids->andUid) && (!result)) || ((uid == searchUids->orUid) && result)) { /* @@ -3599,16 +3948,12 @@ TagSearchEvalExpr( } else if (uid == searchUids->endparenUid) { return result; -/* - * } else { - * assert(0); - */ } looking_for_tag = 1; } } /* - * assert(! looking_for_tag); + * assert(!looking_for_tag); */ return result; } @@ -3667,7 +4012,7 @@ TagSearchFirst( entryPtr = Tcl_FindHashEntry(&searchPtr->canvasPtr->idTable, (char *) INT2PTR(searchPtr->id)); if (entryPtr != NULL) { - itemPtr = (Tk_Item *)Tcl_GetHashValue(entryPtr); + itemPtr = Tcl_GetHashValue(entryPtr); lastPtr = itemPtr->prevPtr; } else { lastPtr = itemPtr = NULL; @@ -3697,7 +4042,7 @@ TagSearchFirst( uid = searchPtr->expr->uid; for (lastPtr = NULL, itemPtr = searchPtr->canvasPtr->firstItemPtr; - itemPtr != NULL; lastPtr = itemPtr, itemPtr = itemPtr->nextPtr) { + itemPtr != NULL; lastPtr=itemPtr, itemPtr=itemPtr->nextPtr) { for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags; count > 0; tagPtr++, count--) { if (*tagPtr == uid) { @@ -3708,7 +4053,6 @@ TagSearchFirst( } } } else { - /* * None of the above. Search for an item matching the tag expression. */ @@ -3839,23 +4183,23 @@ TagSearchNext( * DoItem -- * * 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's id to the list being constructed, 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 an element to the + * supplied object; otherwise tag is added to itemPtr's list of tags. * *-------------------------------------------------------------- */ static void DoItem( - Tcl_Interp *interp, /* Interpreter in which to (possibly) record - * item id. */ + Tcl_Obj *accumObj, /* Object 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. */ @@ -3868,10 +4212,7 @@ DoItem( */ if (tag == NULL) { - char msg[TCL_INTEGER_SPACE]; - - sprintf(msg, "%d", itemPtr->id); - Tcl_AppendElement(interp, msg); + Tcl_ListObjAppendElement(NULL, accumObj, Tcl_NewIntObj(itemPtr->id)); return; } @@ -3890,12 +4231,11 @@ DoItem( Tk_Uid *newTagPtr; itemPtr->tagSpace += 5; - newTagPtr = (Tk_Uid *) - ckalloc((unsigned) (itemPtr->tagSpace * sizeof(Tk_Uid))); + newTagPtr = ckalloc(itemPtr->tagSpace * sizeof(Tk_Uid)); memcpy((void *) newTagPtr, itemPtr->tagPtr, itemPtr->numTags * sizeof(Tk_Uid)); if (itemPtr->tagPtr != itemPtr->staticTagSpace) { - ckfree((char *) itemPtr->tagPtr); + ckfree(itemPtr->tagPtr); } itemPtr->tagPtr = newTagPtr; tagPtr = &itemPtr->tagPtr[itemPtr->numTags]; @@ -3938,7 +4278,7 @@ FindItems( 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 + 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 @@ -3959,7 +4299,8 @@ FindItems( Tk_Item *itemPtr; Tk_Uid uid; int index, result; - static CONST char *optionStrings[] = { + Tcl_Obj *resultObj; + static const char *const optionStrings[] = { "above", "all", "below", "closest", "enclosed", "overlapping", "withtag", NULL }; @@ -3990,7 +4331,9 @@ FindItems( lastPtr = itemPtr; } if ((lastPtr != NULL) && (lastPtr->nextPtr != NULL)) { - DoItem(interp, lastPtr->nextPtr, uid); + resultObj = Tcl_NewObj(); + DoItem(resultObj, lastPtr->nextPtr, uid); + Tcl_SetObjResult(interp, resultObj); } break; } @@ -4000,10 +4343,12 @@ FindItems( return TCL_ERROR; } + resultObj = Tcl_NewObj(); for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { - DoItem(interp, itemPtr, uid); + DoItem(resultObj, itemPtr, uid); } + Tcl_SetObjResult(interp, resultObj); break; case CANV_BELOW: @@ -4013,10 +4358,10 @@ FindItems( } FIRST_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr, return TCL_ERROR); - if (itemPtr != NULL) { - if (itemPtr->prevPtr != NULL) { - DoItem(interp, itemPtr->prevPtr, uid); - } + if ((itemPtr != NULL) && (itemPtr->prevPtr != NULL)) { + resultObj = Tcl_NewObj(); + DoItem(resultObj, itemPtr->prevPtr, uid); + Tcl_SetObjResult(interp, resultObj); } break; case CANV_CLOSEST: { @@ -4029,19 +4374,20 @@ FindItems( Tcl_WrongNumArgs(interp, first+1, objv, "x y ?halo? ?start?"); return TCL_ERROR; } - if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[first+1], - &coords[0]) != TCL_OK) || (Tk_CanvasGetCoordFromObj(interp, - (Tk_Canvas) canvasPtr, objv[first+2], &coords[1]) != TCL_OK)) { + if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[first+1], &coords[0]) != TCL_OK + || Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, + objv[first+2], &coords[1]) != TCL_OK) { return TCL_ERROR; } if (objc > first+3) { - if (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[first+3], - &halo) != TCL_OK) { + 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(objv[3]), "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't have negative halo value \"%f\"", halo)); return TCL_ERROR; } } else { @@ -4078,11 +4424,7 @@ FindItems( if (itemPtr == NULL) { return TCL_OK; } - closestDist = (*itemPtr->typePtr->pointProc)((Tk_Canvas) canvasPtr, - itemPtr, coords) - halo; - if (closestDist < 0.0) { - closestDist = 0.0; - } + closestDist = ItemPoint(canvasPtr, itemPtr, coords, halo); while (1) { double newDist; @@ -4109,7 +4451,9 @@ FindItems( itemPtr = canvasPtr->firstItemPtr; } if (itemPtr == startPtr) { - DoItem(interp, closestPtr, uid); + resultObj = Tcl_NewObj(); + DoItem(resultObj, closestPtr, uid); + Tcl_SetObjResult(interp, resultObj); return TCL_OK; } if (itemPtr->state == TK_STATE_HIDDEN || @@ -4121,11 +4465,7 @@ FindItems( || (itemPtr->y1 >= y2) || (itemPtr->y2 <= y1)) { continue; } - newDist = (*itemPtr->typePtr->pointProc)((Tk_Canvas) canvasPtr, - itemPtr, coords) - halo; - if (newDist < 0.0) { - newDist = 0.0; - } + newDist = ItemPoint(canvasPtr, itemPtr, coords, halo); if (newDist <= closestDist) { closestDist = newDist; break; @@ -4151,10 +4491,16 @@ FindItems( Tcl_WrongNumArgs(interp, first+1, objv, "tagOrId"); return TCL_ERROR; } + resultObj = Tcl_NewObj(); FOR_EVERY_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr, - return TCL_ERROR) { - DoItem(interp, itemPtr, uid); + goto badWithTagSearch) { + DoItem(resultObj, itemPtr, uid); } + Tcl_SetObjResult(interp, resultObj); + return TCL_OK; + badWithTagSearch: + Tcl_DecrRefCount(resultObj); + return TCL_ERROR; } return TCL_OK; } @@ -4186,7 +4532,7 @@ 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 + 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 @@ -4199,14 +4545,15 @@ FindArea( double rect[4], tmp; int x1, y1, x2, y2; Tk_Item *itemPtr; + Tcl_Obj *resultObj; if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[0], &rect[0]) != TCL_OK) - || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[1], + || (Tk_CanvasGetCoordFromObj(interp,(Tk_Canvas)canvasPtr,objv[1], &rect[1]) != TCL_OK) - || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[2], + || (Tk_CanvasGetCoordFromObj(interp,(Tk_Canvas)canvasPtr,objv[2], &rect[2]) != TCL_OK) - || (Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[3], + || (Tk_CanvasGetCoordFromObj(interp,(Tk_Canvas)canvasPtr,objv[3], &rect[3]) != TCL_OK)) { return TCL_ERROR; } @@ -4222,25 +4569,27 @@ FindArea( * item-specific code except for items that are close. */ - x1 = (int) (rect[0]-1.0); - y1 = (int) (rect[1]-1.0); - x2 = (int) (rect[2]+1.0); - y2 = (int) (rect[3]+1.0); + x1 = (int) (rect[0] - 1.0); + y1 = (int) (rect[1] - 1.0); + x2 = (int) (rect[2] + 1.0); + y2 = (int) (rect[3] + 1.0); + resultObj = Tcl_NewObj(); for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { - if (itemPtr->state == TK_STATE_HIDDEN || (itemPtr->state == TK_STATE_NULL && - canvasPtr->canvas_state == TK_STATE_HIDDEN)) { + if (itemPtr->state == TK_STATE_HIDDEN || + (itemPtr->state == TK_STATE_NULL + && canvasPtr->canvas_state == TK_STATE_HIDDEN)) { continue; } if ((itemPtr->x1 >= x2) || (itemPtr->x2 <= x1) || (itemPtr->y1 >= y2) || (itemPtr->y2 <= y1)) { continue; } - if ((*itemPtr->typePtr->areaProc)((Tk_Canvas) canvasPtr, itemPtr, rect) - >= enclosed) { - DoItem(interp, itemPtr, uid); + if (ItemOverlap(canvasPtr, itemPtr, rect) >= enclosed) { + DoItem(resultObj, itemPtr, uid); } } + Tcl_SetObjResult(interp, resultObj); return TCL_OK; } @@ -4329,7 +4678,7 @@ RelinkItems( lastMovePtr->nextPtr = itemPtr; } lastMovePtr = itemPtr; - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); canvasPtr->flags |= REPICK_NEEDED; } @@ -4392,9 +4741,10 @@ CanvasBindProc( ClientData clientData, /* Pointer to canvas structure. */ XEvent *eventPtr) /* Pointer to X event that just happened. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; + int mask; - Tcl_Preserve((ClientData) canvasPtr); + Tcl_Preserve(canvasPtr); /* * This code below keeps track of the current modifier state in @@ -4402,9 +4752,9 @@ CanvasBindProc( * current item while buttons are down. */ - if ((eventPtr->type == ButtonPress) || (eventPtr->type == ButtonRelease)) { - int mask; - + switch (eventPtr->type) { + case ButtonPress: + case ButtonRelease: switch (eventPtr->xbutton.button) { case Button1: mask = Button1Mask; @@ -4458,20 +4808,21 @@ CanvasBindProc( PickCurrentItem(canvasPtr, eventPtr); eventPtr->xbutton.state ^= mask; } - goto done; - } else if ((eventPtr->type == EnterNotify) - || (eventPtr->type == LeaveNotify)) { + break; + case EnterNotify: + case LeaveNotify: canvasPtr->state = eventPtr->xcrossing.state; PickCurrentItem(canvasPtr, eventPtr); - goto done; - } else if (eventPtr->type == MotionNotify) { + break; + case MotionNotify: canvasPtr->state = eventPtr->xmotion.state; PickCurrentItem(canvasPtr, eventPtr); + /* fallthrough */ + default: + CanvasDoEvent(canvasPtr, eventPtr); } - CanvasDoEvent(canvasPtr, eventPtr); - done: - Tcl_Release((ClientData) canvasPtr); + Tcl_Release(canvasPtr); } /* @@ -4553,11 +4904,11 @@ PickCurrentItem( canvasPtr->pickEvent.xcrossing.y_root = eventPtr->xmotion.y_root; canvasPtr->pickEvent.xcrossing.mode = NotifyNormal; canvasPtr->pickEvent.xcrossing.detail = NotifyNonlinear; - canvasPtr->pickEvent.xcrossing.same_screen - = eventPtr->xmotion.same_screen; + canvasPtr->pickEvent.xcrossing.same_screen = + eventPtr->xmotion.same_screen; canvasPtr->pickEvent.xcrossing.focus = False; canvasPtr->pickEvent.xcrossing.state = eventPtr->xmotion.state; - } else { + } else { canvasPtr->pickEvent = *eventPtr; } } @@ -4589,7 +4940,7 @@ PickCurrentItem( if ((canvasPtr->newCurrentPtr == canvasPtr->currentItemPtr) && !(canvasPtr->flags & LEFT_GRABBED_ITEM)) { /* - * Nothing to do: the current item hasn't changed. + * Nothing to do: the current item hasn't changed. */ return; @@ -4652,7 +5003,7 @@ PickCurrentItem( * deleted. */ } - if ((canvasPtr->newCurrentPtr != canvasPtr->currentItemPtr) && buttonDown) { + if ((canvasPtr->newCurrentPtr!=canvasPtr->currentItemPtr) && buttonDown) { canvasPtr->flags |= LEFT_GRABBED_ITEM; return; } @@ -4668,10 +5019,8 @@ PickCurrentItem( canvasPtr->currentItemPtr = canvasPtr->newCurrentPtr; if (prevItemPtr != NULL && prevItemPtr != canvasPtr->currentItemPtr && (prevItemPtr->redraw_flags & TK_ITEM_STATE_DEPENDANT)) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, prevItemPtr); - (*prevItemPtr->typePtr->configProc)(canvasPtr->interp, - (Tk_Canvas) canvasPtr, prevItemPtr, 0, NULL, - TK_CONFIG_ARGV_ONLY); + EventuallyRedrawItem(canvasPtr, prevItemPtr); + ItemConfigure(canvasPtr, prevItemPtr, 0, NULL); } if (canvasPtr->currentItemPtr != NULL) { XEvent event; @@ -4680,14 +5029,11 @@ PickCurrentItem( DoItem(NULL, canvasPtr->currentItemPtr, Tk_GetUid("current")); #else /* USE_OLD_TAG_SEARCH */ 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, NULL, - TK_CONFIG_ARGV_ONLY); - EventuallyRedrawItem((Tk_Canvas) canvasPtr, - canvasPtr->currentItemPtr); +#endif /* USE_OLD_TAG_SEARCH */ + if ((canvasPtr->currentItemPtr->redraw_flags & TK_ITEM_STATE_DEPENDANT + && prevItemPtr != canvasPtr->currentItemPtr)) { + ItemConfigure(canvasPtr, canvasPtr->currentItemPtr, 0, NULL); + EventuallyRedrawItem(canvasPtr, canvasPtr->currentItemPtr); } event = canvasPtr->pickEvent; event.type = EnterNotify; @@ -4733,8 +5079,10 @@ CanvasFindClosest( bestPtr = NULL; for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { - if (itemPtr->state == TK_STATE_HIDDEN || itemPtr->state==TK_STATE_DISABLED || - (itemPtr->state == TK_STATE_NULL && (canvasPtr->canvas_state == TK_STATE_HIDDEN || + if (itemPtr->state == TK_STATE_HIDDEN || + itemPtr->state==TK_STATE_DISABLED || + (itemPtr->state == TK_STATE_NULL && + (canvasPtr->canvas_state == TK_STATE_HIDDEN || canvasPtr->canvas_state == TK_STATE_DISABLED))) { continue; } @@ -4742,8 +5090,7 @@ CanvasFindClosest( || (itemPtr->y1 > y2) || (itemPtr->y2 < y1)) { continue; } - if ((*itemPtr->typePtr->pointProc)((Tk_Canvas) canvasPtr, - itemPtr, coords) <= canvasPtr->closeEnough) { + if (ItemPoint(canvasPtr,itemPtr,coords,0) <= canvasPtr->closeEnough) { bestPtr = itemPtr; } } @@ -4840,8 +5187,7 @@ CanvasDoEvent( if (numObjects <= NUM_STATIC) { objectPtr = staticObjects; } else { - objectPtr = (ClientData *) ckalloc((unsigned) - (numObjects * sizeof(ClientData))); + objectPtr = ckalloc(numObjects * sizeof(ClientData)); } #ifdef USE_OLD_TAG_SEARCH objectPtr[0] = (ClientData) Tk_GetUid("all"); @@ -4851,7 +5197,7 @@ CanvasDoEvent( for (i = itemPtr->numTags-1; i >= 0; i--) { objectPtr[i+1] = (ClientData) itemPtr->tagPtr[i]; } - objectPtr[itemPtr->numTags+1] = (ClientData) itemPtr; + objectPtr[itemPtr->numTags+1] = itemPtr; #ifndef USE_OLD_TAG_SEARCH /* @@ -4878,7 +5224,7 @@ CanvasDoEvent( numObjects, objectPtr); } if (objectPtr != staticObjects) { - ckfree((char *) objectPtr); + ckfree(objectPtr); } } @@ -4904,7 +5250,7 @@ static void CanvasBlinkProc( ClientData clientData) /* Pointer to record describing entry. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; if (!canvasPtr->textInfo.gotFocus || (canvasPtr->insertOffTime == 0)) { return; @@ -4912,18 +5258,13 @@ CanvasBlinkProc( if (canvasPtr->textInfo.cursorOn) { canvasPtr->textInfo.cursorOn = 0; canvasPtr->insertBlinkHandler = Tcl_CreateTimerHandler( - canvasPtr->insertOffTime, CanvasBlinkProc, - (ClientData) canvasPtr); + canvasPtr->insertOffTime, CanvasBlinkProc, canvasPtr); } else { canvasPtr->textInfo.cursorOn = 1; canvasPtr->insertBlinkHandler = Tcl_CreateTimerHandler( - canvasPtr->insertOnTime, CanvasBlinkProc, - (ClientData) canvasPtr); - } - if (canvasPtr->textInfo.focusItemPtr != NULL) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, - canvasPtr->textInfo.focusItemPtr); + canvasPtr->insertOnTime, CanvasBlinkProc, canvasPtr); } + EventuallyRedrawItem(canvasPtr, canvasPtr->textInfo.focusItemPtr); } /* @@ -4956,22 +5297,18 @@ CanvasFocusProc( canvasPtr->textInfo.cursorOn = 1; if (canvasPtr->insertOffTime != 0) { canvasPtr->insertBlinkHandler = Tcl_CreateTimerHandler( - canvasPtr->insertOffTime, CanvasBlinkProc, - (ClientData) canvasPtr); + canvasPtr->insertOffTime, CanvasBlinkProc, canvasPtr); } } else { canvasPtr->textInfo.gotFocus = 0; canvasPtr->textInfo.cursorOn = 0; canvasPtr->insertBlinkHandler = (Tcl_TimerToken) NULL; } - if (canvasPtr->textInfo.focusItemPtr != NULL) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, - canvasPtr->textInfo.focusItemPtr); - } + EventuallyRedrawItem(canvasPtr, canvasPtr->textInfo.focusItemPtr); if (canvasPtr->highlightWidth > 0) { canvasPtr->flags |= REDRAW_BORDERS; if (!(canvasPtr->flags & REDRAW_PENDING)) { - Tcl_DoWhenIdle(DisplayCanvas, (ClientData) canvasPtr); + Tcl_DoWhenIdle(DisplayCanvas, canvasPtr); canvasPtr->flags |= REDRAW_PENDING; } } @@ -5014,10 +5351,9 @@ CanvasSelectTo( if (canvasPtr->textInfo.selItemPtr == NULL) { Tk_OwnSelection(canvasPtr->tkwin, XA_PRIMARY, CanvasLostSelection, - (ClientData) canvasPtr); + canvasPtr); } else if (canvasPtr->textInfo.selItemPtr != itemPtr) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, - canvasPtr->textInfo.selItemPtr); + EventuallyRedrawItem(canvasPtr, canvasPtr->textInfo.selItemPtr); } canvasPtr->textInfo.selItemPtr = itemPtr; @@ -5035,7 +5371,7 @@ CanvasSelectTo( if ((canvasPtr->textInfo.selectFirst != oldFirst) || (canvasPtr->textInfo.selectLast != oldLast) || (itemPtr != oldSelPtr)) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, itemPtr); + EventuallyRedrawItem(canvasPtr, itemPtr); } } @@ -5070,16 +5406,9 @@ CanvasFetchSelection( * not including terminating NULL * character. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; - if (canvasPtr->textInfo.selItemPtr == NULL) { - return -1; - } - if (canvasPtr->textInfo.selItemPtr->typePtr->selectionProc == NULL) { - return -1; - } - return (*canvasPtr->textInfo.selItemPtr->typePtr->selectionProc)( - (Tk_Canvas) canvasPtr, canvasPtr->textInfo.selItemPtr, offset, + return ItemSelection(canvasPtr, canvasPtr->textInfo.selItemPtr, offset, buffer, maxBytes); } @@ -5105,12 +5434,9 @@ static void CanvasLostSelection( ClientData clientData) /* Information about entry widget. */ { - TkCanvas *canvasPtr = (TkCanvas *) clientData; + TkCanvas *canvasPtr = clientData; - if (canvasPtr->textInfo.selItemPtr != NULL) { - EventuallyRedrawItem((Tk_Canvas) canvasPtr, - canvasPtr->textInfo.selItemPtr); - } + EventuallyRedrawItem(canvasPtr, canvasPtr->textInfo.selItemPtr); canvasPtr->textInfo.selItemPtr = NULL; } @@ -5227,6 +5553,7 @@ CanvasUpdateScrollbars( int xOrigin, yOrigin, inset, width, height; int scrollX1, scrollX2, scrollY1, scrollY2; char *xScrollCmd, *yScrollCmd; + Tcl_DString buf; /* * Save all the relevant values from the canvasPtr, because it might be @@ -5234,14 +5561,14 @@ CanvasUpdateScrollbars( */ interp = canvasPtr->interp; - Tcl_Preserve((ClientData) interp); + Tcl_Preserve(interp); xScrollCmd = canvasPtr->xScrollCmd; if (xScrollCmd != NULL) { - Tcl_Preserve((ClientData) xScrollCmd); + Tcl_Preserve(xScrollCmd); } yScrollCmd = canvasPtr->yScrollCmd; if (yScrollCmd != NULL) { - Tcl_Preserve((ClientData) yScrollCmd); + Tcl_Preserve(yScrollCmd); } xOrigin = canvasPtr->xOrigin; yOrigin = canvasPtr->yOrigin; @@ -5256,29 +5583,39 @@ CanvasUpdateScrollbars( if (canvasPtr->xScrollCmd != NULL) { Tcl_Obj *fractions = ScrollFractions(xOrigin + inset, xOrigin + width - inset, scrollX1, scrollX2); - result = Tcl_VarEval(interp, xScrollCmd, " ", Tcl_GetString(fractions), - NULL); + + Tcl_DStringInit(&buf); + Tcl_DStringAppend(&buf, xScrollCmd, -1); + Tcl_DStringAppend(&buf, " ", -1); + Tcl_DStringAppend(&buf, Tcl_GetString(fractions), -1); + result = Tcl_EvalEx(interp, Tcl_DStringValue(&buf), -1, 0); + Tcl_DStringFree(&buf); Tcl_DecrRefCount(fractions); if (result != TCL_OK) { - Tcl_BackgroundError(interp); + Tcl_BackgroundException(interp, result); } Tcl_ResetResult(interp); - Tcl_Release((ClientData) xScrollCmd); + Tcl_Release(xScrollCmd); } if (yScrollCmd != NULL) { Tcl_Obj *fractions = ScrollFractions(yOrigin + inset, yOrigin + height - inset, scrollY1, scrollY2); - result = Tcl_VarEval(interp, yScrollCmd, " ", Tcl_GetString(fractions), - NULL); + + Tcl_DStringInit(&buf); + Tcl_DStringAppend(&buf, yScrollCmd, -1); + Tcl_DStringAppend(&buf, " ", -1); + Tcl_DStringAppend(&buf, Tcl_GetString(fractions), -1); + result = Tcl_EvalEx(interp, Tcl_DStringValue(&buf), -1, 0); + Tcl_DStringFree(&buf); Tcl_DecrRefCount(fractions); if (result != TCL_OK) { - Tcl_BackgroundError(interp); + Tcl_BackgroundException(interp, result); } Tcl_ResetResult(interp); - Tcl_Release((ClientData) yScrollCmd); + Tcl_Release(yScrollCmd); } - Tcl_Release((ClientData) interp); + Tcl_Release(interp); } /* @@ -5344,11 +5681,11 @@ CanvasSetOrigin( * 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. + * 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)) { @@ -5427,17 +5764,18 @@ CanvasSetOrigin( */ /* ARGSUSED */ -static CONST char ** +static const char ** TkGetStringsFromObjs( int objc, - Tcl_Obj *CONST objv[]) + Tcl_Obj *const objv[]) { register int i; - CONST char **argv; + const char **argv; + if (objc <= 0) { return NULL; } - argv = (CONST char **) ckalloc((objc+1) * sizeof(char *)); + argv = ckalloc((objc+1) * sizeof(char *)); for (i = 0; i < objc; i++) { argv[i] = Tcl_GetString(objv[i]); } @@ -5473,8 +5811,7 @@ Tk_CanvasPsColor( Tk_Canvas canvas, /* Information about canvas. */ XColor *colorPtr) /* Information about color. */ { - return Tk_PostscriptColor(interp, ((TkCanvas *) canvas)->psInfo, - colorPtr); + return Tk_PostscriptColor(interp, Canvas(canvas)->psInfo, colorPtr); } /* @@ -5507,7 +5844,7 @@ Tk_CanvasPsFont( Tk_Font tkfont) /* Information about font in which text is to * be printed. */ { - return Tk_PostscriptFont(interp, ((TkCanvas *) canvas)->psInfo, tkfont); + return Tk_PostscriptFont(interp, Canvas(canvas)->psInfo, tkfont); } /* @@ -5540,9 +5877,8 @@ Tk_CanvasPsBitmap( * 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, - width, height); + return Tk_PostscriptBitmap(interp, Canvas(canvas)->tkwin, + Canvas(canvas)->psInfo, bitmap, startX, startY, width, height); } /* @@ -5574,8 +5910,8 @@ Tk_CanvasPsStipple( Tk_Canvas canvas, /* Information about canvas. */ Pixmap bitmap) /* Bitmap to use for stippling. */ { - return Tk_PostscriptStipple(interp, ((TkCanvas *) canvas)->tkwin, - ((TkCanvas *) canvas)->psInfo, bitmap); + return Tk_PostscriptStipple(interp, Canvas(canvas)->tkwin, + Canvas(canvas)->psInfo, bitmap); } /* @@ -5601,7 +5937,7 @@ Tk_CanvasPsY( * is being generated. */ double y) /* Y-coordinate in canvas coords. */ { - return Tk_PostscriptY(y, ((TkCanvas *) canvas)->psInfo); + return Tk_PostscriptY(y, Canvas(canvas)->psInfo); } /* @@ -5631,8 +5967,7 @@ Tk_CanvasPsPath( * coordinates giving points for path. */ int numPoints) /* Number of points at *coordPtr. */ { - Tk_PostscriptPath(interp, ((TkCanvas *) canvas)->psInfo, - coordPtr, numPoints); + Tk_PostscriptPath(interp, Canvas(canvas)->psInfo, coordPtr, numPoints); } /* |