diff options
Diffstat (limited to 'generic/tkTextImage.c')
| -rw-r--r-- | generic/tkTextImage.c | 800 |
1 files changed, 374 insertions, 426 deletions
diff --git a/generic/tkTextImage.c b/generic/tkTextImage.c index 57d444f..5d77c13 100644 --- a/generic/tkTextImage.c +++ b/generic/tkTextImage.c @@ -1,120 +1,111 @@ -/* +/* * tkImage.c -- * - * This file contains code that allows images to be - * nested inside text widgets. It also implements the "image" - * widget command for texts. + * This file contains code that allows images to be nested inside text + * widgets. It also implements the "image" widget command for texts. * * Copyright (c) 1997 Sun Microsystems, Inc. * - * See the file "license.terms" for information on usage and redistribution - * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ -#include "tk.h" -#include "tkText.h" #include "tkPort.h" - -/* - * Definitions for alignment values: - */ - -#define ALIGN_BOTTOM 0 -#define ALIGN_CENTER 1 -#define ALIGN_TOP 2 -#define ALIGN_BASELINE 3 +#include "tkText.h" /* * Macro that determines the size of an embedded image segment: */ -#define EI_SEG_SIZE ((unsigned) (Tk_Offset(TkTextSegment, body) \ - + sizeof(TkTextEmbImage))) +#define EI_SEG_SIZE \ + ((unsigned) (Tk_Offset(TkTextSegment, body) + sizeof(TkTextEmbImage))) /* - * Prototypes for procedures defined in this file: + * Prototypes for functions defined in this file: */ -static int AlignParseProc _ANSI_ARGS_((ClientData clientData, - Tcl_Interp *interp, Tk_Window tkwin, - CONST char *value, char *widgRec, int offset)); -static char * AlignPrintProc _ANSI_ARGS_((ClientData clientData, - Tk_Window tkwin, char *widgRec, int offset, - Tcl_FreeProc **freeProcPtr)); -static TkTextSegment * EmbImageCleanupProc _ANSI_ARGS_((TkTextSegment *segPtr, - TkTextLine *linePtr)); -static void EmbImageCheckProc _ANSI_ARGS_((TkTextSegment *segPtr, - TkTextLine *linePtr)); -static void EmbImageBboxProc _ANSI_ARGS_((TkTextDispChunk *chunkPtr, - int index, int y, int lineHeight, int baseline, - int *xPtr, int *yPtr, int *widthPtr, - int *heightPtr)); -static int EmbImageConfigure _ANSI_ARGS_((TkText *textPtr, - TkTextSegment *eiPtr, int argc, CONST char **argv)); -static int EmbImageDeleteProc _ANSI_ARGS_((TkTextSegment *segPtr, - TkTextLine *linePtr, int treeGone)); -static void EmbImageDisplayProc _ANSI_ARGS_(( +static TkTextSegment * EmbImageCleanupProc(TkTextSegment *segPtr, + TkTextLine *linePtr); +static void EmbImageCheckProc(TkTextSegment *segPtr, + TkTextLine *linePtr); +static void EmbImageBboxProc(TkText *textPtr, + TkTextDispChunk *chunkPtr, int index, int y, + int lineHeight, int baseline, int *xPtr, int *yPtr, + int *widthPtr, int *heightPtr); +static int EmbImageConfigure(TkText *textPtr, + TkTextSegment *eiPtr, int objc, + Tcl_Obj *const objv[]); +static int EmbImageDeleteProc(TkTextSegment *segPtr, + TkTextLine *linePtr, int treeGone); +static void EmbImageDisplayProc(TkText *textPtr, TkTextDispChunk *chunkPtr, int x, int y, int lineHeight, int baseline, Display *display, - Drawable dst, int screenY)); -static int EmbImageLayoutProc _ANSI_ARGS_((TkText *textPtr, + Drawable dst, int screenY); +static int EmbImageLayoutProc(TkText *textPtr, TkTextIndex *indexPtr, TkTextSegment *segPtr, int offset, int maxX, int maxChars, int noCharsYet, TkWrapMode wrapMode, - TkTextDispChunk *chunkPtr)); -static void EmbImageProc _ANSI_ARGS_((ClientData clientData, - int x, int y, int width, int height, - int imageWidth, int imageHeight)); + TkTextDispChunk *chunkPtr); +static void EmbImageProc(ClientData clientData, int x, int y, + int width, int height, int imageWidth, + int imageHeight); /* * The following structure declares the "embedded image" segment type. */ -static Tk_SegType tkTextEmbImageType = { - "image", /* name */ - 0, /* leftGravity */ - (Tk_SegSplitProc *) NULL, /* splitProc */ - EmbImageDeleteProc, /* deleteProc */ - EmbImageCleanupProc, /* cleanupProc */ - (Tk_SegLineChangeProc *) NULL, /* lineChangeProc */ - EmbImageLayoutProc, /* layoutProc */ - EmbImageCheckProc /* checkProc */ +static const Tk_SegType tkTextEmbImageType = { + "image", /* name */ + 0, /* leftGravity */ + NULL, /* splitProc */ + EmbImageDeleteProc, /* deleteProc */ + EmbImageCleanupProc, /* cleanupProc */ + NULL, /* lineChangeProc */ + EmbImageLayoutProc, /* layoutProc */ + EmbImageCheckProc /* checkProc */ +}; + +/* + * Definitions for alignment values: + */ + +static char *alignStrings[] = { + "baseline", "bottom", "center", "top", NULL }; +typedef enum { + ALIGN_BASELINE, ALIGN_BOTTOM, ALIGN_CENTER, ALIGN_TOP +} alignMode; + /* * Information used for parsing image configuration options: */ -static Tk_CustomOption alignOption = {AlignParseProc, AlignPrintProc, - (ClientData) NULL}; - -static Tk_ConfigSpec configSpecs[] = { - {TK_CONFIG_CUSTOM, "-align", (char *) NULL, (char *) NULL, - "center", 0, TK_CONFIG_DONT_SET_DEFAULT, &alignOption}, - {TK_CONFIG_PIXELS, "-padx", (char *) NULL, (char *) NULL, - "0", Tk_Offset(TkTextEmbImage, padX), - TK_CONFIG_DONT_SET_DEFAULT}, - {TK_CONFIG_PIXELS, "-pady", (char *) NULL, (char *) NULL, - "0", Tk_Offset(TkTextEmbImage, padY), - TK_CONFIG_DONT_SET_DEFAULT}, - {TK_CONFIG_STRING, "-image", (char *) NULL, (char *) NULL, - (char *) NULL, Tk_Offset(TkTextEmbImage, imageString), - TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK}, - {TK_CONFIG_STRING, "-name", (char *) NULL, (char *) NULL, - (char *) NULL, Tk_Offset(TkTextEmbImage, imageName), - TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK}, - {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, - (char *) NULL, 0, 0} +static const Tk_OptionSpec optionSpecs[] = { + {TK_OPTION_STRING_TABLE, "-align", NULL, NULL, + "center", -1, Tk_Offset(TkTextEmbImage, align), + 0, (ClientData) alignStrings, 0}, + {TK_OPTION_PIXELS, "-padx", NULL, NULL, + "0", -1, Tk_Offset(TkTextEmbImage, padX), 0, 0, 0}, + {TK_OPTION_PIXELS, "-pady", NULL, NULL, + "0", -1, Tk_Offset(TkTextEmbImage, padY), 0, 0, 0}, + {TK_OPTION_STRING, "-image", NULL, NULL, + NULL, -1, Tk_Offset(TkTextEmbImage, imageString), + TK_OPTION_NULL_OK, 0, 0}, + {TK_OPTION_STRING, "-name", NULL, NULL, + NULL, -1, Tk_Offset(TkTextEmbImage, imageName), + TK_OPTION_NULL_OK, 0, 0}, + {TK_OPTION_END} }; + /* *-------------------------------------------------------------- * * TkTextImageCmd -- * - * This procedure implements the "image" widget command - * for text widgets. See the user documentation for details - * on what it does. + * This function implements the "image" widget command for text widgets. + * See the user documentation for details on what it does. * * Results: * A standard Tcl result or error. @@ -126,100 +117,121 @@ static Tk_ConfigSpec configSpecs[] = { */ int -TkTextImageCmd(textPtr, interp, argc, argv) - register TkText *textPtr; /* Information about text widget. */ - Tcl_Interp *interp; /* Current interpreter. */ - int argc; /* Number of arguments. */ - CONST char **argv; /* Argument strings. Someone else has already +TkTextImageCmd( + register TkText *textPtr, /* Information about text widget. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. Someone else has already * parsed this command enough to know that - * argv[1] is "image". */ + * objv[1] is "image". */ { - size_t length; + int idx; register TkTextSegment *eiPtr; - - if (argc < 3) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " image option ?arg arg ...?\"", (char *) NULL); + TkTextIndex index; + static const char *optionStrings[] = { + "cget", "configure", "create", "names", NULL + }; + enum opts { + CMD_CGET, CMD_CONF, CMD_CREATE, CMD_NAMES + }; + + if (objc < 3) { + Tcl_WrongNumArgs(interp, 2, objv, "option ?arg arg ...?"); return TCL_ERROR; } - length = strlen(argv[2]); - if ((strncmp(argv[2], "cget", length) == 0) && (length >= 2)) { - TkTextIndex index; - TkTextSegment *eiPtr; - - if (argc != 5) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " image cget index option\"", - (char *) NULL); + if (Tcl_GetIndexFromObj(interp, objv[2], optionStrings, "option", 0, + &idx) != TCL_OK) { + return TCL_ERROR; + } + switch ((enum opts) idx) { + case CMD_CGET: { + Tcl_Obj *objPtr; + + if (objc != 5) { + Tcl_WrongNumArgs(interp, 3, objv, "index option"); return TCL_ERROR; } - if (TkTextGetIndex(interp, textPtr, argv[3], &index) != TCL_OK) { + if (TkTextGetObjIndex(interp, textPtr, objv[3], &index) != TCL_OK) { return TCL_ERROR; } - eiPtr = TkTextIndexToSeg(&index, (int *) NULL); + eiPtr = TkTextIndexToSeg(&index, NULL); if (eiPtr->typePtr != &tkTextEmbImageType) { Tcl_AppendResult(interp, "no embedded image at index \"", - argv[3], "\"", (char *) NULL); + Tcl_GetString(objv[3]), "\"", NULL); return TCL_ERROR; } - return Tk_ConfigureValue(interp, textPtr->tkwin, configSpecs, - (char *) &eiPtr->body.ei, argv[4], 0); - } else if ((strncmp(argv[2], "configure", length) == 0) && (length >= 2)) { - TkTextIndex index; - TkTextSegment *eiPtr; - - if (argc < 4) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " image configure index ?option value ...?\"", - (char *) NULL); + objPtr = Tk_GetOptionValue(interp, (char *) &eiPtr->body.ei, + eiPtr->body.ei.optionTable, objv[4], textPtr->tkwin); + if (objPtr == NULL) { + return TCL_ERROR; + } else { + Tcl_SetObjResult(interp, objPtr); + return TCL_OK; + } + } + case CMD_CONF: + if (objc < 4) { + Tcl_WrongNumArgs(interp, 3, objv, "index ?option value ...?"); return TCL_ERROR; } - if (TkTextGetIndex(interp, textPtr, argv[3], &index) != TCL_OK) { + if (TkTextGetObjIndex(interp, textPtr, objv[3], &index) != TCL_OK) { return TCL_ERROR; } - eiPtr = TkTextIndexToSeg(&index, (int *) NULL); + eiPtr = TkTextIndexToSeg(&index, NULL); if (eiPtr->typePtr != &tkTextEmbImageType) { Tcl_AppendResult(interp, "no embedded image at index \"", - argv[3], "\"", (char *) NULL); + Tcl_GetString(objv[3]), "\"", NULL); return TCL_ERROR; } - if (argc == 4) { - return Tk_ConfigureInfo(interp, textPtr->tkwin, configSpecs, - (char *) &eiPtr->body.ei, (char *) NULL, 0); - } else if (argc == 5) { - return Tk_ConfigureInfo(interp, textPtr->tkwin, configSpecs, - (char *) &eiPtr->body.ei, argv[4], 0); + if (objc <= 5) { + Tcl_Obj *objPtr = Tk_GetOptionInfo(interp, + (char *) &eiPtr->body.ei, eiPtr->body.ei.optionTable, + (objc == 5) ? objv[4] : NULL, textPtr->tkwin); + if (objPtr == NULL) { + return TCL_ERROR; + } else { + Tcl_SetObjResult(interp, objPtr); + return TCL_OK; + } } else { - TkTextChanged(textPtr, &index, &index); - return EmbImageConfigure(textPtr, eiPtr, argc-4, argv+4); + TkTextChanged(textPtr->sharedTextPtr, NULL, &index, &index); + + /* + * It's probably not true that all window configuration can change + * the line height, so we could be more efficient here and only + * call this when necessary. + */ + + TkTextInvalidateLineMetrics(textPtr->sharedTextPtr, NULL, + index.linePtr, 0, TK_TEXT_INVALIDATE_ONLY); + return EmbImageConfigure(textPtr, eiPtr, objc-4, objv+4); } - } else if ((strncmp(argv[2], "create", length) == 0) && (length >= 2)) { - TkTextIndex index; + case CMD_CREATE: { int lineIndex; /* - * Add a new image. Find where to put the new image, and - * mark that position for redisplay. + * Add a new image. Find where to put the new image, and mark that + * position for redisplay. */ - if (argc < 4) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " image create index ?option value ...?\"", - (char *) NULL); + if (objc < 4) { + Tcl_WrongNumArgs(interp, 3, objv, "index ?option value ...?"); return TCL_ERROR; } - if (TkTextGetIndex(interp, textPtr, argv[3], &index) != TCL_OK) { + if (TkTextGetObjIndex(interp, textPtr, objv[3], &index) != TCL_OK) { return TCL_ERROR; } /* * Don't allow insertions on the last (dummy) line of the text. */ - - lineIndex = TkBTreeLineIndex(index.linePtr); - if (lineIndex == TkBTreeNumLines(textPtr->tree)) { + + lineIndex = TkBTreeLinesTo(textPtr, index.linePtr); + if (lineIndex == TkBTreeNumLines(textPtr->sharedTextPtr->tree, + textPtr)) { lineIndex--; - TkTextMakeByteIndex(textPtr->tree, lineIndex, 1000000, &index); + TkTextMakeByteIndex(textPtr->sharedTextPtr->tree, textPtr, + lineIndex, 1000000, &index); } /* @@ -229,7 +241,7 @@ TkTextImageCmd(textPtr, interp, argc, argv) eiPtr = (TkTextSegment *) ckalloc(EI_SEG_SIZE); eiPtr->typePtr = &tkTextEmbImageType; eiPtr->size = 1; - eiPtr->body.ei.textPtr = textPtr; + eiPtr->body.ei.sharedTextPtr = textPtr->sharedTextPtr; eiPtr->body.ei.linePtr = NULL; eiPtr->body.ei.imageName = NULL; eiPtr->body.ei.imageString = NULL; @@ -238,42 +250,45 @@ TkTextImageCmd(textPtr, interp, argc, argv) eiPtr->body.ei.align = ALIGN_CENTER; eiPtr->body.ei.padX = eiPtr->body.ei.padY = 0; eiPtr->body.ei.chunkCount = 0; + eiPtr->body.ei.optionTable = Tk_CreateOptionTable(interp, optionSpecs); /* - * Link the segment into the text widget, then configure it (delete - * it again if the configuration fails). + * Link the segment into the text widget, then configure it (delete it + * again if the configuration fails). */ - TkTextChanged(textPtr, &index, &index); + TkTextChanged(textPtr->sharedTextPtr, NULL, &index, &index); TkBTreeLinkSegment(eiPtr, &index); - if (EmbImageConfigure(textPtr, eiPtr, argc-4, argv+4) != TCL_OK) { + if (EmbImageConfigure(textPtr, eiPtr, objc-4, objv+4) != TCL_OK) { TkTextIndex index2; - TkTextIndexForwChars(&index, 1, &index2); - TkBTreeDeleteChars(&index, &index2); + TkTextIndexForwChars(NULL, &index, 1, &index2, COUNT_INDICES); + TkBTreeDeleteIndexRange(textPtr->sharedTextPtr->tree, &index, &index2); return TCL_ERROR; } - } else if (strncmp(argv[2], "names", length) == 0) { + TkTextInvalidateLineMetrics(textPtr->sharedTextPtr, NULL, + index.linePtr, 0, TK_TEXT_INVALIDATE_ONLY); + return TCL_OK; + } + case CMD_NAMES: { Tcl_HashSearch search; Tcl_HashEntry *hPtr; - if (argc != 3) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " image names\"", (char *) NULL); + if (objc != 3) { + Tcl_WrongNumArgs(interp, 3, objv, NULL); return TCL_ERROR; } - for (hPtr = Tcl_FirstHashEntry(&textPtr->imageTable, &search); - hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { + for (hPtr = Tcl_FirstHashEntry(&textPtr->sharedTextPtr->imageTable, + &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { Tcl_AppendElement(interp, - Tcl_GetHashKey(&textPtr->markTable, hPtr)); + Tcl_GetHashKey(&textPtr->sharedTextPtr->markTable, hPtr)); } - } else { - Tcl_AppendResult(interp, "bad image option \"", argv[2], - "\": must be cget, configure, create, or names", - (char *) NULL); - return TCL_ERROR; + return TCL_OK; } - return TCL_OK; + default: + Tcl_Panic("unexpected switch fallthrough"); + } + return TCL_ERROR; } /* @@ -281,55 +296,54 @@ TkTextImageCmd(textPtr, interp, argc, argv) * * EmbImageConfigure -- * - * This procedure is called to handle configuration options - * for an embedded image, using an argc/argv list. + * This function is called to handle configuration options for an + * embedded image, using an objc/objv list. * * Results: - * The return value is a standard Tcl result. If TCL_ERROR is - * returned, then the interp's result contains an error message.. + * The return value is a standard Tcl result. If TCL_ERROR is returned, + * then the interp's result contains an error message.. * * Side effects: - * Configuration information for the embedded image changes, - * such as alignment, or name of the image. + * Configuration information for the embedded image changes, such as + * alignment, or name of the image. * *-------------------------------------------------------------- */ static int -EmbImageConfigure(textPtr, eiPtr, argc, argv) - TkText *textPtr; /* Information about text widget that - * contains embedded image. */ - TkTextSegment *eiPtr; /* Embedded image to be configured. */ - int argc; /* Number of strings in argv. */ - CONST char **argv; /* Array of strings describing configuration +EmbImageConfigure( + TkText *textPtr, /* Information about text widget that contains + * embedded image. */ + TkTextSegment *eiPtr, /* Embedded image to be configured. */ + int objc, /* Number of strings in objv. */ + Tcl_Obj *const objv[]) /* Array of strings describing configuration * options. */ { Tk_Image image; Tcl_DString newName; Tcl_HashEntry *hPtr; Tcl_HashSearch search; - int new; char *name; int count = 0; /* The counter for picking a unique name */ int conflict = 0; /* True if we have a name conflict */ - unsigned int len; /* length of image name */ + size_t len; /* length of image name */ - if (Tk_ConfigureWidget(textPtr->interp, textPtr->tkwin, configSpecs, - argc, argv, (char *) &eiPtr->body.ei,TK_CONFIG_ARGV_ONLY) - != TCL_OK) { + if (Tk_SetOptions(textPtr->interp, (char*)&eiPtr->body.ei, + eiPtr->body.ei.optionTable, + objc, objv, textPtr->tkwin, NULL, NULL) != TCL_OK) { return TCL_ERROR; } /* - * Create the image. Save the old image around and don't free it - * until after the new one is allocated. This keeps the reference - * count from going to zero so the image doesn't have to be recreated - * if it hasn't changed. + * Create the image. Save the old image around and don't free it until + * after the new one is allocated. This keeps the reference count from + * going to zero so the image doesn't have to be recreated if it hasn't + * changed. */ if (eiPtr->body.ei.imageString != NULL) { - image = Tk_GetImage(textPtr->interp, textPtr->tkwin, eiPtr->body.ei.imageString, - EmbImageProc, (ClientData) eiPtr); + image = Tk_GetImage(textPtr->interp, textPtr->tkwin, + eiPtr->body.ei.imageString, EmbImageProc, (ClientData) eiPtr); if (image == NULL) { return TCL_ERROR; } @@ -345,9 +359,9 @@ EmbImageConfigure(textPtr, eiPtr, argc, argv) return TCL_OK; } - /* - * Find a unique name for this image. Use imageName (or imageString) - * if available, otherwise tack on a #nn and use it. If a name is already + /* + * Find a unique name for this image. Use imageName (or imageString) if + * available, otherwise tack on a #nn and use it. If a name is already * associated with this image, delete the name. */ @@ -356,42 +370,50 @@ EmbImageConfigure(textPtr, eiPtr, argc, argv) name = eiPtr->body.ei.imageString; } if (name == NULL) { - Tcl_AppendResult(textPtr->interp,"Either a \"-name\" ", + Tcl_AppendResult(textPtr->interp, "Either a \"-name\" ", "or a \"-image\" argument must be provided ", - "to the \"image create\" subcommand.", - (char *) NULL); + "to the \"image create\" subcommand.", NULL); return TCL_ERROR; } len = strlen(name); - for (hPtr = Tcl_FirstHashEntry(&textPtr->imageTable, &search); - hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { - char *haveName = Tcl_GetHashKey(&textPtr->imageTable, hPtr); + for (hPtr = Tcl_FirstHashEntry(&textPtr->sharedTextPtr->imageTable, + &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { + char *haveName = + Tcl_GetHashKey(&textPtr->sharedTextPtr->imageTable, hPtr); + if (strncmp(name, haveName, len) == 0) { - new = 0; - sscanf(haveName+len,"#%d",&new); - if (new > count) { - count = new; + int newVal = 0; + + sscanf(haveName+len, "#%d", &newVal); + if (newVal > count) { + count = newVal; } - if (len == (int) strlen(haveName)) { + if (len == strlen(haveName)) { conflict = 1; } } } Tcl_DStringInit(&newName); - Tcl_DStringAppend(&newName,name, -1); + Tcl_DStringAppend(&newName, name, -1); if (conflict) { char buf[4 + TCL_INTEGER_SPACE]; - sprintf(buf, "#%d",count+1); - Tcl_DStringAppend(&newName,buf, -1); + + sprintf(buf, "#%d", count+1); + Tcl_DStringAppend(&newName, buf, -1); } name = Tcl_DStringValue(&newName); - hPtr = Tcl_CreateHashEntry(&textPtr->imageTable, name, &new); + { + int dummy; + + hPtr = Tcl_CreateHashEntry(&textPtr->sharedTextPtr->imageTable, name, + &dummy); + } Tcl_SetHashValue(hPtr, eiPtr); - Tcl_AppendResult(textPtr->interp, name , (char *) NULL); + Tcl_AppendResult(textPtr->interp, name, NULL); eiPtr->body.ei.name = ckalloc((unsigned) Tcl_DStringLength(&newName)+1); - strcpy(eiPtr->body.ei.name,name); + strcpy(eiPtr->body.ei.name, name); Tcl_DStringFree(&newName); return TCL_OK; @@ -400,103 +422,10 @@ EmbImageConfigure(textPtr, eiPtr, argc, argv) /* *-------------------------------------------------------------- * - * AlignParseProc -- - * - * This procedure is invoked by Tk_ConfigureWidget during - * option processing to handle "-align" options for embedded - * images. - * - * Results: - * A standard Tcl return value. - * - * Side effects: - * The alignment for the embedded image may change. - * - *-------------------------------------------------------------- - */ - - /* ARGSUSED */ -static int -AlignParseProc(clientData, interp, tkwin, value, widgRec, offset) - ClientData clientData; /* Not used.*/ - Tcl_Interp *interp; /* Used for reporting errors. */ - Tk_Window tkwin; /* Window for text widget. */ - CONST char *value; /* Value of option. */ - char *widgRec; /* Pointer to TkTextEmbWindow - * structure. */ - int offset; /* Offset into item (ignored). */ -{ - register TkTextEmbImage *embPtr = (TkTextEmbImage *) widgRec; - - if (strcmp(value, "baseline") == 0) { - embPtr->align = ALIGN_BASELINE; - } else if (strcmp(value, "bottom") == 0) { - embPtr->align = ALIGN_BOTTOM; - } else if (strcmp(value, "center") == 0) { - embPtr->align = ALIGN_CENTER; - } else if (strcmp(value, "top") == 0) { - embPtr->align = ALIGN_TOP; - } else { - Tcl_AppendResult(interp, "bad alignment \"", value, - "\": must be baseline, bottom, center, or top", - (char *) NULL); - return TCL_ERROR; - } - return TCL_OK; -} - -/* - *-------------------------------------------------------------- - * - * AlignPrintProc -- - * - * This procedure is invoked by the Tk configuration code - * to produce a printable string for the "-align" configuration - * option for embedded images. - * - * Results: - * The return value is a string describing the embedded - * images's current alignment. - * - * Side effects: - * None. - * - *-------------------------------------------------------------- - */ - - /* ARGSUSED */ -static char * -AlignPrintProc(clientData, tkwin, widgRec, offset, freeProcPtr) - ClientData clientData; /* Ignored. */ - Tk_Window tkwin; /* Window for text widget. */ - char *widgRec; /* Pointer to TkTextEmbImage - * structure. */ - int offset; /* Ignored. */ - Tcl_FreeProc **freeProcPtr; /* Pointer to variable to fill in with - * information about how to reclaim - * storage for return string. */ -{ - switch (((TkTextEmbImage *) widgRec)->align) { - case ALIGN_BASELINE: - return "baseline"; - case ALIGN_BOTTOM: - return "bottom"; - case ALIGN_CENTER: - return "center"; - case ALIGN_TOP: - return "top"; - default: - return "??"; - } -} - -/* - *-------------------------------------------------------------- - * * EmbImageDeleteProc -- * - * This procedure is invoked by the text B-tree code whenever - * an embedded image lies in a range of characters being deleted. + * This function is invoked by the text B-tree code whenever an embedded + * image lies in a range of characters being deleted. * * Results: * Returns 0 to indicate that the deletion has been accepted. @@ -510,17 +439,17 @@ AlignPrintProc(clientData, tkwin, widgRec, offset, freeProcPtr) /* ARGSUSED */ static int -EmbImageDeleteProc(eiPtr, linePtr, treeGone) - TkTextSegment *eiPtr; /* Segment being deleted. */ - TkTextLine *linePtr; /* Line containing segment. */ - int treeGone; /* Non-zero means the entire tree is - * being deleted, so everything must - * get cleaned up. */ +EmbImageDeleteProc( + TkTextSegment *eiPtr, /* Segment being deleted. */ + TkTextLine *linePtr, /* Line containing segment. */ + int treeGone) /* Non-zero means the entire tree is being + * deleted, so everything must get cleaned + * up. */ { Tcl_HashEntry *hPtr; if (eiPtr->body.ei.image != NULL) { - hPtr = Tcl_FindHashEntry(&eiPtr->body.ei.textPtr->imageTable, + hPtr = Tcl_FindHashEntry(&eiPtr->body.ei.sharedTextPtr->imageTable, eiPtr->body.ei.name); if (hPtr != NULL) { /* @@ -533,9 +462,15 @@ EmbImageDeleteProc(eiPtr, linePtr, treeGone) } Tk_FreeImage(eiPtr->body.ei.image); } - Tk_FreeOptions(configSpecs, (char *) &eiPtr->body.ei, - eiPtr->body.ei.textPtr->display, 0); - if (eiPtr->body.ei.name != NULL) { + + /* + * No need to supply a tkwin argument, since we have no window-specific + * options. + */ + + Tk_FreeConfigOptions((char *) &eiPtr->body.ei, eiPtr->body.ei.optionTable, + NULL); + if (eiPtr->body.ei.name) { ckfree(eiPtr->body.ei.name); } ckfree((char *) eiPtr); @@ -547,9 +482,8 @@ EmbImageDeleteProc(eiPtr, linePtr, treeGone) * * EmbImageCleanupProc -- * - * This procedure is invoked by the B-tree code whenever a - * segment containing an embedded image is moved from one - * line to another. + * This function is invoked by the B-tree code whenever a segment + * containing an embedded image is moved from one line to another. * * Results: * None. @@ -561,9 +495,9 @@ EmbImageDeleteProc(eiPtr, linePtr, treeGone) */ static TkTextSegment * -EmbImageCleanupProc(eiPtr, linePtr) - TkTextSegment *eiPtr; /* Mark segment that's being moved. */ - TkTextLine *linePtr; /* Line that now contains segment. */ +EmbImageCleanupProc( + TkTextSegment *eiPtr, /* Mark segment that's being moved. */ + TkTextLine *linePtr) /* Line that now contains segment. */ { eiPtr->body.ei.linePtr = linePtr; return eiPtr; @@ -574,12 +508,11 @@ EmbImageCleanupProc(eiPtr, linePtr) * * EmbImageLayoutProc -- * - * This procedure is the "layoutProc" for embedded image - * segments. + * This function is the "layoutProc" for embedded image segments. * * Results: - * 1 is returned to indicate that the segment should be - * displayed. The chunkPtr structure is filled in. + * 1 is returned to indicate that the segment should be displayed. The + * chunkPtr structure is filled in. * * Side effects: * None, except for filling in chunkPtr. @@ -589,30 +522,30 @@ EmbImageCleanupProc(eiPtr, linePtr) /*ARGSUSED*/ static int -EmbImageLayoutProc(textPtr, indexPtr, eiPtr, offset, maxX, maxChars, - noCharsYet, wrapMode, chunkPtr) - TkText *textPtr; /* Text widget being layed out. */ - TkTextIndex *indexPtr; /* Identifies first character in chunk. */ - TkTextSegment *eiPtr; /* Segment corresponding to indexPtr. */ - int offset; /* Offset within segPtr corresponding to +EmbImageLayoutProc( + TkText *textPtr, /* Text widget being layed out. */ + TkTextIndex *indexPtr, /* Identifies first character in chunk. */ + TkTextSegment *eiPtr, /* Segment corresponding to indexPtr. */ + int offset, /* Offset within segPtr corresponding to * indexPtr (always 0). */ - int maxX; /* Chunk must not occupy pixels at this + int maxX, /* Chunk must not occupy pixels at this * position or higher. */ - int maxChars; /* Chunk must not include more than this - * many characters. */ - int noCharsYet; /* Non-zero means no characters have been + int maxChars, /* Chunk must not include more than this many + * characters. */ + int noCharsYet, /* Non-zero means no characters have been * assigned to this line yet. */ - TkWrapMode wrapMode; /* Wrap mode to use for line: TEXT_WRAPMODE_CHAR, - * TEXT_WRAPMODE_NONE, or TEXT_WRAPMODE_WORD. */ - register TkTextDispChunk *chunkPtr; - /* Structure to fill in with information - * about this chunk. The x field has already - * been set by the caller. */ + TkWrapMode wrapMode, /* Wrap mode to use for line: + * TEXT_WRAPMODE_CHAR, TEXT_WRAPMODE_NONE, or + * TEXT_WRAPMODE_WORD. */ + register TkTextDispChunk *chunkPtr) + /* Structure to fill in with information about + * this chunk. The x field has already been + * set by the caller. */ { int width, height; if (offset != 0) { - panic("Non-zero offset in EmbImageLayoutProc"); + Tcl_Panic("Non-zero offset in EmbImageLayoutProc"); } /* @@ -637,8 +570,8 @@ EmbImageLayoutProc(textPtr, indexPtr, eiPtr, offset, maxX, maxChars, */ chunkPtr->displayProc = EmbImageDisplayProc; - chunkPtr->undisplayProc = (Tk_ChunkUndisplayProc *) NULL; - chunkPtr->measureProc = (Tk_ChunkMeasureProc *) NULL; + chunkPtr->undisplayProc = NULL; + chunkPtr->measureProc = NULL; chunkPtr->bboxProc = EmbImageBboxProc; chunkPtr->numBytes = 1; if (eiPtr->body.ei.align == ALIGN_BASELINE) { @@ -663,29 +596,30 @@ EmbImageLayoutProc(textPtr, indexPtr, eiPtr, offset, maxX, maxChars, * * EmbImageCheckProc -- * - * This procedure is invoked by the B-tree code to perform - * consistency checks on embedded images. + * This function is invoked by the B-tree code to perform consistency + * checks on embedded images. * * Results: * None. * * Side effects: - * The procedure panics if it detects anything wrong with - * the embedded image. + * The function panics if it detects anything wrong with the embedded + * image. * *-------------------------------------------------------------- */ static void -EmbImageCheckProc(eiPtr, linePtr) - TkTextSegment *eiPtr; /* Segment to check. */ - TkTextLine *linePtr; /* Line containing segment. */ +EmbImageCheckProc( + TkTextSegment *eiPtr, /* Segment to check. */ + TkTextLine *linePtr) /* Line containing segment. */ { if (eiPtr->nextPtr == NULL) { - panic("EmbImageCheckProc: embedded image is last segment in line"); + Tcl_Panic("EmbImageCheckProc: embedded image is last segment in line"); } if (eiPtr->size != 1) { - panic("EmbImageCheckProc: embedded image has size %d", eiPtr->size); + Tcl_Panic("EmbImageCheckProc: embedded image has size %d", + eiPtr->size); } } @@ -694,37 +628,35 @@ EmbImageCheckProc(eiPtr, linePtr) * * EmbImageDisplayProc -- * - * This procedure is invoked by the text displaying code - * when it is time to actually draw an embedded image - * chunk on the screen. + * This function is invoked by the text displaying code when it is time + * to actually draw an embedded image chunk on the screen. * * Results: * None. * * Side effects: - * The embedded image gets moved to the correct location - * and drawn onto the display. + * The embedded image gets moved to the correct location and drawn onto + * the display. * *-------------------------------------------------------------- */ static void -EmbImageDisplayProc(chunkPtr, x, y, lineHeight, baseline, display, dst, screenY) - TkTextDispChunk *chunkPtr; /* Chunk that is to be drawn. */ - int x; /* X-position in dst at which to - * draw this chunk (differs from - * the x-position in the chunk because - * of scrolling). */ - int y; /* Top of rectangular bounding box - * for line: tells where to draw this - * chunk in dst (x-position is in - * the chunk itself). */ - int lineHeight; /* Total height of line. */ - int baseline; /* Offset of baseline from y. */ - Display *display; /* Display to use for drawing. */ - Drawable dst; /* Pixmap or window in which to draw */ - int screenY; /* Y-coordinate in text window that - * corresponds to y. */ +EmbImageDisplayProc( + TkText *textPtr, + TkTextDispChunk *chunkPtr, /* Chunk that is to be drawn. */ + int x, /* X-position in dst at which to draw this + * chunk (differs from the x-position in the + * chunk because of scrolling). */ + int y, /* Top of rectangular bounding box for line: + * tells where to draw this chunk in dst + * (x-position is in the chunk itself). */ + int lineHeight, /* Total height of line. */ + int baseline, /* Offset of baseline from y. */ + Display *display, /* Display to use for drawing. */ + Drawable dst, /* Pixmap or window in which to draw */ + int screenY) /* Y-coordinate in text window that + * corresponds to y. */ { TkTextSegment *eiPtr = (TkTextSegment *) chunkPtr->clientData; int lineX, imageX, imageY, width, height; @@ -739,16 +671,15 @@ EmbImageDisplayProc(chunkPtr, x, y, lineHeight, baseline, display, dst, screenY) } /* - * Compute the image's location and size in the text widget, taking - * into account the align value for the image. + * Compute the image's location and size in the text widget, taking into + * account the align value for the image. */ - EmbImageBboxProc(chunkPtr, 0, y, lineHeight, baseline, &lineX, + EmbImageBboxProc(textPtr, chunkPtr, 0, y, lineHeight, baseline, &lineX, &imageY, &width, &height); imageX = lineX - chunkPtr->x + x; - Tk_RedrawImage(image, 0, 0, width, height, dst, - imageX, imageY); + Tk_RedrawImage(image, 0, 0, width, height, dst, imageX, imageY); } /* @@ -756,17 +687,16 @@ EmbImageDisplayProc(chunkPtr, x, y, lineHeight, baseline, display, dst, screenY) * * EmbImageBboxProc -- * - * This procedure is called to compute the bounding box of - * the area occupied by an embedded image. + * This function is called to compute the bounding box of the area + * occupied by an embedded image. * * Results: - * There is no return value. *xPtr and *yPtr are filled in - * with the coordinates of the upper left corner of the - * image, and *widthPtr and *heightPtr are filled in with - * the dimensions of the image in pixels. Note: not all - * of the returned bbox is necessarily visible on the screen - * (the rightmost part might be off-screen to the right, - * and the bottommost part might be off-screen to the bottom). + * There is no return value. *xPtr and *yPtr are filled in with the + * coordinates of the upper left corner of the image, and *widthPtr and + * *heightPtr are filled in with the dimensions of the image in pixels. + * Note: not all of the returned bbox is necessarily visible on the + * screen (the rightmost part might be off-screen to the right, and the + * bottommost part might be off-screen to the bottom). * * Side effects: * None. @@ -775,22 +705,22 @@ EmbImageDisplayProc(chunkPtr, x, y, lineHeight, baseline, display, dst, screenY) */ static void -EmbImageBboxProc(chunkPtr, index, y, lineHeight, baseline, xPtr, yPtr, - widthPtr, heightPtr) - TkTextDispChunk *chunkPtr; /* Chunk containing desired char. */ - int index; /* Index of desired character within - * the chunk. */ - int y; /* Topmost pixel in area allocated - * for this line. */ - int lineHeight; /* Total height of line. */ - int baseline; /* Location of line's baseline, in - * pixels measured down from y. */ - int *xPtr, *yPtr; /* Gets filled in with coords of - * character's upper-left pixel. */ - int *widthPtr; /* Gets filled in with width of - * character, in pixels. */ - int *heightPtr; /* Gets filled in with height of - * character, in pixels. */ +EmbImageBboxProc( + TkText *textPtr, + TkTextDispChunk *chunkPtr, /* Chunk containing desired char. */ + int index, /* Index of desired character within the + * chunk. */ + int y, /* Topmost pixel in area allocated for this + * line. */ + int lineHeight, /* Total height of line. */ + int baseline, /* Location of line's baseline, in pixels + * measured down from y. */ + int *xPtr, int *yPtr, /* Gets filled in with coords of character's + * upper-left pixel. */ + int *widthPtr, /* Gets filled in with width of image, in + * pixels. */ + int *heightPtr) /* Gets filled in with height of image, in + * pixels. */ { TkTextSegment *eiPtr = (TkTextSegment *) chunkPtr->clientData; Tk_Image image; @@ -802,20 +732,22 @@ EmbImageBboxProc(chunkPtr, index, y, lineHeight, baseline, xPtr, yPtr, *widthPtr = 0; *heightPtr = 0; } + *xPtr = chunkPtr->x + eiPtr->body.ei.padX; + switch (eiPtr->body.ei.align) { - case ALIGN_BOTTOM: - *yPtr = y + (lineHeight - *heightPtr - eiPtr->body.ei.padY); - break; - case ALIGN_CENTER: - *yPtr = y + (lineHeight - *heightPtr)/2; - break; - case ALIGN_TOP: - *yPtr = y + eiPtr->body.ei.padY; - break; - case ALIGN_BASELINE: - *yPtr = y + (baseline - *heightPtr); - break; + case ALIGN_BOTTOM: + *yPtr = y + (lineHeight - *heightPtr - eiPtr->body.ei.padY); + break; + case ALIGN_CENTER: + *yPtr = y + (lineHeight - *heightPtr)/2; + break; + case ALIGN_TOP: + *yPtr = y + eiPtr->body.ei.padY; + break; + case ALIGN_BASELINE: + *yPtr = y + (baseline - *heightPtr); + break; } } @@ -824,14 +756,13 @@ EmbImageBboxProc(chunkPtr, index, y, lineHeight, baseline, xPtr, yPtr, * * TkTextImageIndex -- * - * Given the name of an embedded image within a text widget, - * returns an index corresponding to the image's position - * in the text. + * Given the name of an embedded image within a text widget, returns an + * index corresponding to the image's position in the text. * * Results: - * The return value is 1 if there is an embedded image by - * the given name in the text widget, 0 otherwise. If the - * image exists, *indexPtr is filled in with its index. + * The return value is 1 if there is an embedded image by the given name + * in the text widget, 0 otherwise. If the image exists, *indexPtr is + * filled in with its index. * * Side effects: * None. @@ -840,20 +771,20 @@ EmbImageBboxProc(chunkPtr, index, y, lineHeight, baseline, xPtr, yPtr, */ int -TkTextImageIndex(textPtr, name, indexPtr) - TkText *textPtr; /* Text widget containing image. */ - CONST char *name; /* Name of image. */ - TkTextIndex *indexPtr; /* Index information gets stored here. */ +TkTextImageIndex( + TkText *textPtr, /* Text widget containing image. */ + const char *name, /* Name of image. */ + TkTextIndex *indexPtr) /* Index information gets stored here. */ { Tcl_HashEntry *hPtr; TkTextSegment *eiPtr; - hPtr = Tcl_FindHashEntry(&textPtr->imageTable, name); + hPtr = Tcl_FindHashEntry(&textPtr->sharedTextPtr->imageTable, name); if (hPtr == NULL) { return 0; } eiPtr = (TkTextSegment *) Tcl_GetHashValue(hPtr); - indexPtr->tree = textPtr->tree; + indexPtr->tree = textPtr->sharedTextPtr->tree; indexPtr->linePtr = eiPtr->body.ei.linePtr; indexPtr->byteIndex = TkTextSegToOffset(eiPtr, indexPtr->linePtr); return 1; @@ -864,8 +795,8 @@ TkTextImageIndex(textPtr, name, indexPtr) * * EmbImageProc -- * - * This procedure is called by the image code whenever an - * image or its contents changes. + * This function is called by the image code whenever an image or its + * contents changes. * * Results: * None. @@ -877,20 +808,37 @@ TkTextImageIndex(textPtr, name, indexPtr) */ static void -EmbImageProc(clientData, x, y, width, height, imgWidth, imgHeight) - ClientData clientData; /* Pointer to widget record. */ - int x, y; /* Upper left pixel (within image) - * that must be redisplayed. */ - int width, height; /* Dimensions of area to redisplay - * (may be <= 0). */ - int imgWidth, imgHeight; /* New dimensions of image. */ +EmbImageProc( + ClientData clientData, /* Pointer to widget record. */ + int x, int y, /* Upper left pixel (within image) that must + * be redisplayed. */ + int width, int height, /* Dimensions of area to redisplay (may be + * <= 0). */ + int imgWidth, int imgHeight)/* New dimensions of image. */ { TkTextSegment *eiPtr = (TkTextSegment *) clientData; TkTextIndex index; - index.tree = eiPtr->body.ei.textPtr->tree; + index.tree = eiPtr->body.ei.sharedTextPtr->tree; index.linePtr = eiPtr->body.ei.linePtr; index.byteIndex = TkTextSegToOffset(eiPtr, eiPtr->body.ei.linePtr); - TkTextChanged(eiPtr->body.ei.textPtr, &index, &index); + TkTextChanged(eiPtr->body.ei.sharedTextPtr, NULL, &index, &index); + + /* + * It's probably not true that all image changes can change the line + * height, so we could be more efficient here and only call this when + * necessary. + */ + + TkTextInvalidateLineMetrics(eiPtr->body.ei.sharedTextPtr, NULL, + index.linePtr, 0, TK_TEXT_INVALIDATE_ONLY); } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |