diff options
Diffstat (limited to 'generic/tkCanvPs.c')
| -rw-r--r-- | generic/tkCanvPs.c | 783 |
1 files changed, 362 insertions, 421 deletions
diff --git a/generic/tkCanvPs.c b/generic/tkCanvPs.c index ac8f105..c6470dd 100644 --- a/generic/tkCanvPs.c +++ b/generic/tkCanvPs.c @@ -41,7 +41,6 @@ typedef struct TkColormapData { /* Hold color information for a window */ */ typedef struct TkPostscriptInfo { - Tk_Window tkwin; /* The canvas being printed. */ int x, y, width, height; /* Area to print, in canvas pixel * coordinates. */ int x2, y2; /* x+width and y+height. */ @@ -72,7 +71,7 @@ typedef struct TkPostscriptInfo { * NULL means return Postscript info as * result. Malloc'ed. */ char *channelName; /* If -channel is specified, the name of the - * channel to use. */ + * channel to use. */ Tcl_Channel chan; /* Open channel corresponding to fileName. */ Tcl_HashTable fontTable; /* Hash table containing names of all font * families used in output. The hash table @@ -81,7 +80,11 @@ typedef struct TkPostscriptInfo { * pre-pass that collects font information, so * the Postscript generated isn't relevant. */ int prolog; /* Non-zero means output should contain the - * prolog definitions in the header. */ + * standard prolog in the header. Generated in + * library/mkpsenc.tcl, stored in the variable + * ::tk::ps_preamable [sic]. */ + Tk_Window tkwin; /* Window to get font pixel/point transform + * from. */ } TkPostscriptInfo; /* @@ -89,40 +92,40 @@ typedef struct TkPostscriptInfo { * canvas "postscript" command and fill in TkPostscriptInfo structures. */ -static Tk_ConfigSpec configSpecs[] = { +static const Tk_ConfigSpec configSpecs[] = { {TK_CONFIG_STRING, "-colormap", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, colorVar), 0}, + "", Tk_Offset(TkPostscriptInfo, colorVar), 0, NULL}, {TK_CONFIG_STRING, "-colormode", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, colorMode), 0}, + "", Tk_Offset(TkPostscriptInfo, colorMode), 0, NULL}, {TK_CONFIG_STRING, "-file", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, fileName), 0}, + "", Tk_Offset(TkPostscriptInfo, fileName), 0, NULL}, {TK_CONFIG_STRING, "-channel", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, channelName), 0}, + "", Tk_Offset(TkPostscriptInfo, channelName), 0, NULL}, {TK_CONFIG_STRING, "-fontmap", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, fontVar), 0}, + "", Tk_Offset(TkPostscriptInfo, fontVar), 0, NULL}, {TK_CONFIG_PIXELS, "-height", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, height), 0}, + "", Tk_Offset(TkPostscriptInfo, height), 0, NULL}, {TK_CONFIG_ANCHOR, "-pageanchor", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, pageAnchor), 0}, + "", Tk_Offset(TkPostscriptInfo, pageAnchor), 0, NULL}, {TK_CONFIG_STRING, "-pageheight", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, pageHeightString), 0}, + "", Tk_Offset(TkPostscriptInfo, pageHeightString), 0, NULL}, {TK_CONFIG_STRING, "-pagewidth", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, pageWidthString), 0}, + "", Tk_Offset(TkPostscriptInfo, pageWidthString), 0, NULL}, {TK_CONFIG_STRING, "-pagex", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, pageXString), 0}, + "", Tk_Offset(TkPostscriptInfo, pageXString), 0, NULL}, {TK_CONFIG_STRING, "-pagey", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, pageYString), 0}, + "", Tk_Offset(TkPostscriptInfo, pageYString), 0, NULL}, {TK_CONFIG_BOOLEAN, "-prolog", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, prolog), 0}, + "", Tk_Offset(TkPostscriptInfo, prolog), 0, NULL}, {TK_CONFIG_BOOLEAN, "-rotate", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, rotate), 0}, + "", Tk_Offset(TkPostscriptInfo, rotate), 0, NULL}, {TK_CONFIG_PIXELS, "-width", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, width), 0}, + "", Tk_Offset(TkPostscriptInfo, width), 0, NULL}, {TK_CONFIG_PIXELS, "-x", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, x), 0}, + "", Tk_Offset(TkPostscriptInfo, x), 0, NULL}, {TK_CONFIG_PIXELS, "-y", NULL, NULL, - "", Tk_Offset(TkPostscriptInfo, y), 0}, - {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0} + "", Tk_Offset(TkPostscriptInfo, y), 0, NULL}, + {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0, NULL} }; /* @@ -131,6 +134,10 @@ static Tk_ConfigSpec configSpecs[] = { static int GetPostscriptPoints(Tcl_Interp *interp, char *string, double *doublePtr); +static void PostscriptBitmap(Tk_Window tkwin, Pixmap bitmap, + int startX, int startY, int width, int height, + Tcl_Obj *psObj); +static inline Tcl_Obj * GetPostscriptBuffer(Tcl_Interp *interp); /* *-------------------------------------------------------------- @@ -156,7 +163,7 @@ TkCanvPostscriptCmd( TkCanvas *canvasPtr, /* Information about canvas widget. */ Tcl_Interp *interp, /* Current interpreter. */ int argc, /* Number of arguments. */ - CONST char **argv) /* Argument strings. Caller has already parsed + const char **argv) /* Argument strings. Caller has already parsed * this command enough to know that argv[1] is * "postscript". */ { @@ -165,15 +172,15 @@ TkCanvPostscriptCmd( int result; Tk_Item *itemPtr; #define STRING_LENGTH 400 - char string[STRING_LENGTH+1]; - CONST char *p; + const char *p; time_t now; size_t length; Tk_Window tkwin = canvasPtr->tkwin; Tcl_HashSearch search; Tcl_HashEntry *hPtr; Tcl_DString buffer; - char psenccmd[] = "::tk::ensure_psenc_is_loaded"; + Tcl_Obj *preambleObj; + Tcl_Obj *psObj; int deltaX = 0, deltaY = 0; /* Offset of lower-left corner of area to be * marked up, measured in canvas units from * the positioning point on the page (reflects @@ -181,17 +188,31 @@ TkCanvPostscriptCmd( * only to stop compiler warnings. */ /* - * Initialize the data structure describing Postscript generation, then - * process all the arguments to fill the data structure in. + * Get the generic preamble. We only ever bother with the ASCII encoding; + * the others just make life too complicated and never actually worked as + * such. */ - result = Tcl_EvalEx(interp,psenccmd,-1,TCL_EVAL_GLOBAL); + result = Tcl_EvalEx(interp, "::tk::ensure_psenc_is_loaded", -1, 0); if (result != TCL_OK) { - return result; + return result; + } + preambleObj = Tcl_GetVar2Ex(interp, "::tk::ps_preamble", NULL, + TCL_LEAVE_ERR_MSG); + if (preambleObj == NULL) { + return TCL_ERROR; } + Tcl_IncrRefCount(preambleObj); + Tcl_ResetResult(interp); + psObj = Tcl_NewObj(); + + /* + * Initialize the data structure describing Postscript generation, then + * process all the arguments to fill the data structure in. + */ + oldInfoPtr = canvasPtr->psInfo; canvasPtr->psInfo = (Tk_PostscriptInfo) psInfoPtr; - psInfo.tkwin = canvasPtr->tkwin; psInfo.x = canvasPtr->xOrigin; psInfo.y = canvasPtr->yOrigin; psInfo.width = -1; @@ -214,6 +235,7 @@ TkCanvPostscriptCmd( psInfo.chan = NULL; psInfo.prepass = 0; psInfo.prolog = 1; + psInfo.tkwin = tkwin; Tcl_InitHashTable(&psInfo.fontTable, TCL_STRING_KEYS); result = Tk_ConfigureWidget(interp, tkwin, configSpecs, argc-2, argv+2, (char *) &psInfo, TK_CONFIG_ARGV_ONLY); @@ -304,35 +326,40 @@ TkCanvPostscriptCmd( } else if (strncmp(psInfo.colorMode, "color", length) == 0) { psInfo.colorLevel = 2; } else { - Tcl_AppendResult(interp, "bad color mode \"", psInfo.colorMode, - "\": must be monochrome, gray, or color", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad color mode \"%s\": must be monochrome, gray, or color", + psInfo.colorMode)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "COLORMODE", NULL); + result = TCL_ERROR; goto cleanup; } } if (psInfo.fileName != NULL) { - /* - * Check that -file and -channel are not both specified. - */ - - if (psInfo.channelName != NULL) { - Tcl_AppendResult(interp, "can't specify both -file", - " and -channel", NULL); - result = TCL_ERROR; - goto cleanup; - } - - /* - * Check that we are not in a safe interpreter. If we are, disallow - * the -file specification. - */ - - if (Tcl_IsSafe(interp)) { - Tcl_AppendResult(interp, "can't specify -file in a", - " safe interpreter", NULL); - result = TCL_ERROR; - goto cleanup; - } + /* + * Check that -file and -channel are not both specified. + */ + + if (psInfo.channelName != NULL) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "can't specify both -file and -channel", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "USAGE", NULL); + result = TCL_ERROR; + goto cleanup; + } + + /* + * Check that we are not in a safe interpreter. If we are, disallow + * the -file specification. + */ + + if (Tcl_IsSafe(interp)) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "can't specify -file in a safe interpreter", -1)); + Tcl_SetErrorCode(interp, "TK", "SAFE", "PS_FILE", NULL); + result = TCL_ERROR; + goto cleanup; + } p = Tcl_TranslateFileName(interp, psInfo.fileName, &buffer); if (p == NULL) { @@ -346,24 +373,26 @@ TkCanvPostscriptCmd( } if (psInfo.channelName != NULL) { - int mode; - - /* - * Check that the channel is found in this interpreter and that it is - * open for writing. - */ - - psInfo.chan = Tcl_GetChannel(interp, psInfo.channelName, &mode); - if (psInfo.chan == (Tcl_Channel) NULL) { - result = TCL_ERROR; - goto cleanup; - } - if ((mode & TCL_WRITABLE) == 0) { - Tcl_AppendResult(interp, "channel \"", psInfo.channelName, - "\" wasn't opened for writing", NULL); - result = TCL_ERROR; - goto cleanup; - } + int mode; + + /* + * Check that the channel is found in this interpreter and that it is + * open for writing. + */ + + psInfo.chan = Tcl_GetChannel(interp, psInfo.channelName, &mode); + if (psInfo.chan == (Tcl_Channel) NULL) { + result = TCL_ERROR; + goto cleanup; + } + if (!(mode & TCL_WRITABLE)) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "channel \"%s\" wasn't opened for writing", + psInfo.channelName)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "UNWRITABLE",NULL); + result = TCL_ERROR; + goto cleanup; + } } /* @@ -384,7 +413,7 @@ TkCanvPostscriptCmd( if (itemPtr->typePtr->postscriptProc == NULL) { continue; } - result = (*itemPtr->typePtr->postscriptProc)(interp, + result = itemPtr->typePtr->postscriptProc(interp, (Tk_Canvas) canvasPtr, itemPtr, 1); Tcl_ResetResult(interp); if (result != TCL_OK) { @@ -394,6 +423,7 @@ TkCanvPostscriptCmd( * can happen later that don't happen now, so we still have to * check for errors later anyway). */ + break; } } @@ -404,24 +434,27 @@ TkCanvPostscriptCmd( */ if (psInfo.prolog) { - Tcl_AppendResult(interp, "%!PS-Adobe-3.0 EPSF-3.0\n", - "%%Creator: Tk Canvas Widget\n", NULL); + Tcl_AppendToObj(psObj, + "%!PS-Adobe-3.0 EPSF-3.0\n" + "%%Creator: Tk Canvas Widget\n", -1); + #ifdef HAVE_PW_GECOS if (!Tcl_IsSafe(interp)) { struct passwd *pwPtr = getpwuid(getuid()); /* INTL: Native. */ - Tcl_AppendResult(interp, "%%For: ", - (pwPtr != NULL) ? pwPtr->pw_gecos : "Unknown", "\n", NULL); + Tcl_AppendPrintfToObj(psObj, + "%%%%For: %s\n", (pwPtr ? pwPtr->pw_gecos : "Unknown")); endpwent(); } #endif /* HAVE_PW_GECOS */ - Tcl_AppendResult(interp, "%%Title: Window ", Tk_PathName(tkwin), "\n", - NULL); + Tcl_AppendPrintfToObj(psObj, + "%%%%Title: Window %s\n", Tk_PathName(tkwin)); time(&now); - Tcl_AppendResult(interp, "%%CreationDate: ", - ctime(&now), NULL); /* INTL: Native. */ + Tcl_AppendPrintfToObj(psObj, + "%%%%CreationDate: %s", ctime(&now)); /* INTL: Native. */ if (!psInfo.rotate) { - sprintf(string, "%d %d %d %d", + Tcl_AppendPrintfToObj(psObj, + "%%%%BoundingBox: %d %d %d %d\n", (int) (psInfo.pageX + psInfo.scale*deltaX), (int) (psInfo.pageY + psInfo.scale*deltaY), (int) (psInfo.pageX + psInfo.scale*(deltaX + psInfo.width) @@ -429,51 +462,60 @@ TkCanvPostscriptCmd( (int) (psInfo.pageY + psInfo.scale*(deltaY + psInfo.height) + 1.0)); } else { - sprintf(string, "%d %d %d %d", + Tcl_AppendPrintfToObj(psObj, + "%%%%BoundingBox: %d %d %d %d\n", (int) (psInfo.pageX - psInfo.scale*(deltaY+psInfo.height)), (int) (psInfo.pageY + psInfo.scale*deltaX), (int) (psInfo.pageX - psInfo.scale*deltaY + 1.0), (int) (psInfo.pageY + psInfo.scale*(deltaX + psInfo.width) + 1.0)); } - Tcl_AppendResult(interp, "%%BoundingBox: ", string, "\n", NULL); - Tcl_AppendResult(interp, "%%Pages: 1\n", - "%%DocumentData: Clean7Bit\n", NULL); - Tcl_AppendResult(interp, "%%Orientation: ", - psInfo.rotate ? "Landscape\n" : "Portrait\n", NULL); - p = "%%DocumentNeededResources: font "; + Tcl_AppendPrintfToObj(psObj, + "%%%%Pages: 1\n" + "%%%%DocumentData: Clean7Bit\n" + "%%%%Orientation: %s\n", + psInfo.rotate ? "Landscape" : "Portrait"); + p = "%%%%DocumentNeededResources: font %s\n"; for (hPtr = Tcl_FirstHashEntry(&psInfo.fontTable, &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { - Tcl_AppendResult(interp, p, - Tcl_GetHashKey(&psInfo.fontTable, hPtr), "\n", NULL); - p = "%%+ font "; + Tcl_AppendPrintfToObj(psObj, p, + Tcl_GetHashKey(&psInfo.fontTable, hPtr)); + p = "%%%%+ font %s\n"; } - Tcl_AppendResult(interp, "%%EndComments\n\n", NULL); + Tcl_AppendToObj(psObj, "%%EndComments\n\n", -1); /* * Insert the prolog */ - Tcl_AppendResult(interp, Tcl_GetVar(interp,"::tk::ps_preamable", - TCL_GLOBAL_ONLY), NULL); + Tcl_AppendObjToObj(psObj, preambleObj); if (psInfo.chan != NULL) { - Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1); - Tcl_ResetResult(canvasPtr->interp); + if (Tcl_WriteObj(psInfo.chan, psObj) == -1) { + channelWriteFailed: + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "problem writing postscript data to channel: %s", + Tcl_PosixError(interp))); + result = TCL_ERROR; + goto cleanup; + } + Tcl_DecrRefCount(psObj); + psObj = Tcl_NewObj(); } /* * Document setup: set the color level and include fonts. */ - sprintf(string, "/CL %d def\n", psInfo.colorLevel); - Tcl_AppendResult(interp, "%%BeginSetup\n", string, NULL); + Tcl_AppendPrintfToObj(psObj, + "%%%%BeginSetup\n/CL %d def\n", psInfo.colorLevel); for (hPtr = Tcl_FirstHashEntry(&psInfo.fontTable, &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { - Tcl_AppendResult(interp, "%%IncludeResource: font ", - Tcl_GetHashKey(&psInfo.fontTable, hPtr), "\n", NULL); + Tcl_AppendPrintfToObj(psObj, + "%%%%IncludeResource: font %s\n", + (char *) Tcl_GetHashKey(&psInfo.fontTable, hPtr)); } - Tcl_AppendResult(interp, "%%EndSetup\n\n", NULL); + Tcl_AppendToObj(psObj, "%%EndSetup\n\n", -1); /* * Page setup: move to page positioning point, rotate if needed, set @@ -481,18 +523,19 @@ TkCanvPostscriptCmd( * region. */ - Tcl_AppendResult(interp, "%%Page: 1 1\n", "save\n", NULL); - sprintf(string, "%.1f %.1f translate\n", psInfo.pageX, psInfo.pageY); - Tcl_AppendResult(interp, string, NULL); + Tcl_AppendToObj(psObj, "%%Page: 1 1\nsave\n", -1); + Tcl_AppendPrintfToObj(psObj, + "%.1f %.1f translate\n", psInfo.pageX, psInfo.pageY); if (psInfo.rotate) { - Tcl_AppendResult(interp, "90 rotate\n", NULL); + Tcl_AppendToObj(psObj, "90 rotate\n", -1); } - sprintf(string, "%.4g %.4g scale\n", psInfo.scale, psInfo.scale); - Tcl_AppendResult(interp, string, NULL); - sprintf(string, "%d %d translate\n", deltaX - psInfo.x, deltaY); - Tcl_AppendResult(interp, string, NULL); - sprintf(string, - "%d %.15g moveto %d %.15g lineto %d %.15g lineto %d %.15g", + Tcl_AppendPrintfToObj(psObj, + "%.4g %.4g scale\n", psInfo.scale, psInfo.scale); + Tcl_AppendPrintfToObj(psObj, + "%d %d translate\n", deltaX - psInfo.x, deltaY); + Tcl_AppendPrintfToObj(psObj, + "%d %.15g moveto %d %.15g lineto %d %.15g lineto %d %.15g " + "lineto closepath clip newpath\n", psInfo.x, Tk_PostscriptY((double)psInfo.y, (Tk_PostscriptInfo)psInfoPtr), psInfo.x2, Tk_PostscriptY((double)psInfo.y, @@ -501,12 +544,13 @@ TkCanvPostscriptCmd( (Tk_PostscriptInfo)psInfoPtr), psInfo.x, Tk_PostscriptY((double)psInfo.y2, (Tk_PostscriptInfo)psInfoPtr)); - Tcl_AppendResult(interp, string, - " lineto closepath clip newpath\n", NULL); - } - if (psInfo.chan != NULL) { - Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1); - Tcl_ResetResult(canvasPtr->interp); + if (psInfo.chan != NULL) { + if (Tcl_WriteObj(psInfo.chan, psObj) == -1) { + goto channelWriteFailed; + } + Tcl_DecrRefCount(psObj); + psObj = Tcl_NewObj(); + } } /* @@ -527,21 +571,27 @@ TkCanvPostscriptCmd( if (itemPtr->state == TK_STATE_HIDDEN) { continue; } - Tcl_AppendResult(interp, "gsave\n", NULL); - result = (*itemPtr->typePtr->postscriptProc)(interp, + + Tcl_ResetResult(interp); + result = itemPtr->typePtr->postscriptProc(interp, (Tk_Canvas) canvasPtr, itemPtr, 0); if (result != TCL_OK) { - char msg[64 + TCL_INTEGER_SPACE]; - - sprintf(msg, "\n (generating Postscript for item %d)", - itemPtr->id); - Tcl_AddErrorInfo(interp, msg); + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (generating Postscript for item %d)", + itemPtr->id)); goto cleanup; } - Tcl_AppendResult(interp, "grestore\n", NULL); + + Tcl_AppendToObj(psObj, "gsave\n", -1); + Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp)); + Tcl_AppendToObj(psObj, "grestore\n", -1); + if (psInfo.chan != NULL) { - Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1); - Tcl_ResetResult(interp); + if (Tcl_WriteObj(psInfo.chan, psObj) == -1) { + goto channelWriteFailed; + } + Tcl_DecrRefCount(psObj); + psObj = Tcl_NewObj(); } } @@ -551,12 +601,22 @@ TkCanvPostscriptCmd( */ if (psInfo.prolog) { - Tcl_AppendResult(interp, "restore showpage\n\n", - "%%Trailer\nend\n%%EOF\n", NULL); + Tcl_AppendToObj(psObj, + "restore showpage\n\n" + "%%Trailer\n" + "end\n" + "%%EOF\n", -1); + + if (psInfo.chan != NULL) { + if (Tcl_WriteObj(psInfo.chan, psObj) == -1) { + goto channelWriteFailed; + } + } } - if (psInfo.chan != NULL) { - Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1); - Tcl_ResetResult(canvasPtr->interp); + + if (psInfo.chan == NULL) { + Tcl_SetObjResult(interp, psObj); + psObj = Tcl_NewObj(); } /* @@ -592,13 +652,28 @@ TkCanvPostscriptCmd( Tcl_Close(interp, psInfo.chan); } if (psInfo.channelName != NULL) { - ckfree(psInfo.channelName); + ckfree(psInfo.channelName); } Tcl_DeleteHashTable(&psInfo.fontTable); canvasPtr->psInfo = (Tk_PostscriptInfo) oldInfoPtr; + Tcl_DecrRefCount(preambleObj); + Tcl_DecrRefCount(psObj); return result; } +static inline Tcl_Obj * +GetPostscriptBuffer( + Tcl_Interp *interp) +{ + Tcl_Obj *psObj = Tcl_GetObjResult(interp); + + if (Tcl_IsShared(psObj)) { + psObj = Tcl_DuplicateObj(psObj); + Tcl_SetObjResult(interp, psObj); + } + return psObj; +} + /* *-------------------------------------------------------------- * @@ -627,9 +702,7 @@ Tk_PostscriptColor( XColor *colorPtr) /* Information about color. */ { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; - int tmp; double red, green, blue; - char string[200]; if (psInfoPtr->prepass) { return TCL_OK; @@ -641,12 +714,12 @@ Tk_PostscriptColor( */ if (psInfoPtr->colorVar != NULL) { - CONST char *cmdString; - - cmdString = Tcl_GetVar2(interp, psInfoPtr->colorVar, + const char *cmdString = Tcl_GetVar2(interp, psInfoPtr->colorVar, Tk_NameOfColor(colorPtr), 0); + if (cmdString != NULL) { - Tcl_AppendResult(interp, cmdString, "\n", NULL); + Tcl_AppendPrintfToObj(GetPostscriptBuffer(interp), + "%s\n", cmdString); return TCL_OK; } } @@ -663,15 +736,12 @@ Tk_PostscriptColor( * per color, but most diplays use at least 8 bits. */ - tmp = colorPtr->red; - red = ((double) (tmp >> 8))/255.0; - tmp = colorPtr->green; - green = ((double) (tmp >> 8))/255.0; - tmp = colorPtr->blue; - blue = ((double) (tmp >> 8))/255.0; - sprintf(string, "%.3f %.3f %.3f setrgbcolor AdjustColor\n", + red = ((double) (((int) colorPtr->red) >> 8))/255.0; + green = ((double) (((int) colorPtr->green) >> 8))/255.0; + blue = ((double) (((int) colorPtr->blue) >> 8))/255.0; + Tcl_AppendPrintfToObj(GetPostscriptBuffer(interp), + "%.3f %.3f %.3f setrgbcolor AdjustColor\n", red, green, blue); - Tcl_AppendResult(interp, string, NULL); return TCL_OK; } @@ -705,9 +775,9 @@ Tk_PostscriptFont( * be printed. */ { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; - char pointString[TCL_INTEGER_SPACE]; Tcl_DString ds; int i, points; + const char *fontname; /* * First, look up the font's name in the font map, if there is one. If @@ -716,35 +786,31 @@ Tk_PostscriptFont( */ if (psInfoPtr->fontVar != NULL) { - CONST char *name = Tk_NameOfFont(tkfont); + const char *name = Tk_NameOfFont(tkfont); Tcl_Obj **objv; int objc; double size; Tcl_Obj *list = Tcl_GetVar2Ex(interp, psInfoPtr->fontVar, name, 0); if (list != NULL) { - CONST char *fontname; - if (Tcl_ListObjGetElements(interp, list, &objc, &objv) != TCL_OK || objc != 2 - || Tcl_GetString(objv[0])[0]=='\0' + || (fontname = Tcl_GetString(objv[0]))[0] == '\0' + || strchr(fontname, ' ') != NULL || Tcl_GetDoubleFromObj(interp, objv[1], &size) != TCL_OK || size <= 0) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "bad font map entry for \"", name, - "\": \"", Tcl_GetString(list), "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad font map entry for \"%s\": \"%s\"", + name, Tcl_GetString(list))); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "FONTMAP", + NULL); return TCL_ERROR; } - fontname = Tcl_GetString(objv[0]); - sprintf(pointString, "%d", (int)size); - - Tcl_AppendResult(interp, "/", fontname, " findfont ", - pointString, " scalefont ", NULL); - if (strncasecmp(fontname, "Symbol", 7) != 0) { - Tcl_AppendResult(interp, "ISOEncode ", NULL); - } - Tcl_AppendResult(interp, "setfont\n", NULL); + Tcl_AppendPrintfToObj(GetPostscriptBuffer(interp), + "/%s findfont %d scalefont%s setfont\n", + fontname, (int) size, + strncasecmp(fontname, "Symbol", 7) ? " ISOEncode" : ""); Tcl_CreateHashEntry(&psInfoPtr->fontTable, fontname, &i); return TCL_OK; } @@ -756,13 +822,11 @@ Tk_PostscriptFont( Tcl_DStringInit(&ds); points = Tk_PostscriptFontName(tkfont, &ds); - sprintf(pointString, "%d", TkFontGetPoints(psInfoPtr->tkwin, points)); - Tcl_AppendResult(interp, "/", Tcl_DStringValue(&ds), " findfont ", - pointString, " scalefont ", NULL); - if (strncasecmp(Tcl_DStringValue(&ds), "Symbol", 7) != 0) { - Tcl_AppendResult(interp, "ISOEncode ", NULL); - } - Tcl_AppendResult(interp, "setfont\n", NULL); + fontname = Tcl_DStringValue(&ds); + Tcl_AppendPrintfToObj(GetPostscriptBuffer(interp), + "/%s findfont %d scalefont%s setfont\n", + fontname, TkFontGetPoints(psInfoPtr->tkwin, points), + strncasecmp(fontname, "Symbol", 7) ? " ISOEncode" : ""); Tcl_CreateHashEntry(&psInfoPtr->fontTable, Tcl_DStringValue(&ds), &i); Tcl_DStringFree(&ds); @@ -800,18 +864,32 @@ Tk_PostscriptBitmap( int width, int height) /* Height of rectangular region. */ { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; + + if (psInfoPtr->prepass) { + return TCL_OK; + } + + PostscriptBitmap(tkwin, bitmap, startX, startY, width, height, + GetPostscriptBuffer(interp)); + return TCL_OK; +} + +static void +PostscriptBitmap( + Tk_Window tkwin, + Pixmap bitmap, /* Bitmap for which to generate Postscript. */ + int startX, int startY, /* Coordinates of upper-left corner of + * rectangular region to output. */ + int width, int height, /* Height of rectangular region. */ + Tcl_Obj *psObj) /* Where to append the postscript. */ +{ XImage *imagePtr; int charsInLine, x, y, lastX, lastY, value, mask; unsigned int totalWidth, totalHeight; - char string[100]; Window dummyRoot; int dummyX, dummyY; unsigned dummyBorderwidth, dummyDepth; - if (psInfoPtr->prepass) { - return TCL_OK; - } - /* * The following call should probably be a call to Tk_SizeOfBitmap * instead, but it seems that we are occasionally invoked by custom item @@ -825,7 +903,8 @@ Tk_PostscriptBitmap( (unsigned int *) &totalHeight, &dummyBorderwidth, &dummyDepth); imagePtr = XGetImage(Tk_Display(tkwin), bitmap, 0, 0, totalWidth, totalHeight, 1, XYPixmap); - Tcl_AppendResult(interp, "<", NULL); + + Tcl_AppendToObj(psObj, "<", -1); mask = 0x80; value = 0; charsInLine = 0; @@ -838,28 +917,26 @@ Tk_PostscriptBitmap( } mask >>= 1; if (mask == 0) { - sprintf(string, "%02x", value); - Tcl_AppendResult(interp, string, NULL); + Tcl_AppendPrintfToObj(psObj, "%02x", value); mask = 0x80; value = 0; charsInLine += 2; if (charsInLine >= 60) { - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); charsInLine = 0; } } } if (mask != 0x80) { - sprintf(string, "%02x", value); - Tcl_AppendResult(interp, string, NULL); + Tcl_AppendPrintfToObj(psObj, "%02x", value); mask = 0x80; value = 0; charsInLine += 2; } } - Tcl_AppendResult(interp, ">", NULL); + Tcl_AppendToObj(psObj, ">", -1); + XDestroyImage(imagePtr); - return TCL_OK; } /* @@ -894,10 +971,10 @@ Tk_PostscriptStipple( { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; int width, height; - char string[TCL_INTEGER_SPACE * 2]; Window dummyRoot; int dummyX, dummyY; unsigned dummyBorderwidth, dummyDepth; + Tcl_Obj *psObj; if (psInfoPtr->prepass) { return TCL_OK; @@ -914,13 +991,11 @@ Tk_PostscriptStipple( XGetGeometry(Tk_Display(tkwin), bitmap, &dummyRoot, (int *) &dummyX, (int *) &dummyY, (unsigned *) &width, (unsigned *) &height, &dummyBorderwidth, &dummyDepth); - sprintf(string, "%d %d ", width, height); - Tcl_AppendResult(interp, string, NULL); - if (Tk_PostscriptBitmap(interp, tkwin, psInfo, bitmap, 0, 0, - width, height) != TCL_OK) { - return TCL_ERROR; - } - Tcl_AppendResult(interp, " StippleFill\n", NULL); + + psObj = GetPostscriptBuffer(interp); + Tcl_AppendPrintfToObj(psObj, "%d %d ", width, height); + PostscriptBitmap(tkwin, bitmap, 0, 0, width, height, psObj); + Tcl_AppendToObj(psObj, " StippleFill\n", -1); return TCL_OK; } @@ -980,19 +1055,19 @@ Tk_PostscriptPath( int numPoints) /* Number of points at *coordPtr. */ { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; - char buffer[200]; + Tcl_Obj *psObj; if (psInfoPtr->prepass) { return; } - sprintf(buffer, "%.15g %.15g moveto\n", coordPtr[0], - Tk_PostscriptY(coordPtr[1], psInfo)); - Tcl_AppendResult(interp, buffer, NULL); + + psObj = GetPostscriptBuffer(interp); + Tcl_AppendPrintfToObj(psObj, "%.15g %.15g moveto\n", + coordPtr[0], Tk_PostscriptY(coordPtr[1], psInfo)); for (numPoints--, coordPtr += 2; numPoints > 0; numPoints--, coordPtr += 2) { - sprintf(buffer, "%.15g %.15g lineto\n", coordPtr[0], - Tk_PostscriptY(coordPtr[1], psInfo)); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%.15g %.15g lineto\n", + coordPtr[0], Tk_PostscriptY(coordPtr[1], psInfo)); } } @@ -1063,7 +1138,8 @@ GetPostscriptPoints( return TCL_OK; error: - Tcl_AppendResult(interp, "bad distance \"", string, "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf("bad distance \"%s\"", string)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "POINTS", NULL); return TCL_ERROR; } @@ -1092,7 +1168,7 @@ GetPostscriptPoints( *-------------------------------------------------------------- */ -#ifdef WIN32 +#ifdef _WIN32 #include <windows.h> /* @@ -1102,15 +1178,15 @@ GetPostscriptPoints( #define GetBValue(rgb) ((BYTE)((rgb)>>16)) */ -#else /* !WIN32 */ +#else /* !_WIN32 */ #define GetRValue(rgb) ((rgb & cdata->red_mask) >> cdata->red_shift) #define GetGValue(rgb) ((rgb & cdata->green_mask) >> cdata->green_shift) #define GetBValue(rgb) ((rgb & cdata->blue_mask) >> cdata->blue_shift) -#endif /* WIN32 */ +#endif /* _WIN32 */ -#if defined(WIN32) || defined(MAC_OSX_TK) +#if defined(_WIN32) || defined(MAC_OSX_TK) static void TkImageGetColor( TkColormapData *cdata, /* Colormap data */ @@ -1122,7 +1198,7 @@ TkImageGetColor( *green = (double) GetGValue(pixel) / 255.0; *blue = (double) GetBValue(pixel) / 255.0; } -#else /* ! (WIN32 || MAC_OSX_TK) */ +#else /* ! (_WIN32 || MAC_OSX_TK) */ static void TkImageGetColor( TkColormapData *cdata, /* Colormap data */ @@ -1144,7 +1220,7 @@ TkImageGetColor( *blue = cdata->colors[pixel].blue / 65535.0; } } -#endif /* WIN32 || MAC_OSX_TK */ +#endif /* _WIN32 || MAC_OSX_TK */ /* *-------------------------------------------------------------- @@ -1177,15 +1253,15 @@ TkPostscriptImage( int width, int height) /* Width and height of area */ { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; - char buffer[256]; int xx, yy, band, maxRows; double red, green, blue; - int bytesPerLine=0, maxWidth=0; + int bytesPerLine = 0, maxWidth = 0; int level = psInfoPtr->colorLevel; Colormap cmap; int i, ncolors; Visual *visual; TkColormapData cdata; + Tcl_Obj *psObj; if (psInfoPtr->prepass) { return TCL_OK; @@ -1200,7 +1276,7 @@ TkPostscriptImage( */ ncolors = visual->map_entries; - cdata.colors = (XColor *) ckalloc(sizeof(XColor) * ncolors); + cdata.colors = ckalloc(sizeof(XColor) * ncolors); cdata.ncolors = ncolors; if (visual->class == DirectColor || visual->class == TrueColor) { @@ -1249,7 +1325,7 @@ TkPostscriptImage( * monochrome screen, use gray or monochrome mode instead. */ - if (!cdata.color && level == 2) { + if (!cdata.color && level >= 2) { level = 1; } @@ -1266,20 +1342,21 @@ TkPostscriptImage( switch (level) { case 0: bytesPerLine = (width + 7) / 8; maxWidth = 240000; break; case 1: bytesPerLine = width; maxWidth = 60000; break; - case 2: bytesPerLine = 3 * width; maxWidth = 20000; break; + default: bytesPerLine = 3 * width; maxWidth = 20000; break; } if (bytesPerLine > 60000) { Tcl_ResetResult(interp); - sprintf(buffer, - "Can't generate Postscript for images more than %d pixels wide", - maxWidth); - Tcl_AppendResult(interp, buffer, NULL); - ckfree((char *) cdata.colors); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't generate Postscript for images more than %d pixels wide", + maxWidth)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "MEMLIMIT", NULL); + ckfree(cdata.colors); return TCL_ERROR; } maxRows = 60000 / bytesPerLine; + psObj = GetPostscriptBuffer(interp); for (band = height-1; band >= 0; band -= maxRows) { int rows = (band >= maxRows) ? maxRows : band + 1; @@ -1287,16 +1364,13 @@ TkPostscriptImage( switch (level) { case 0: - sprintf(buffer, "%d %d 1 matrix {\n<", width, rows); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%d %d 1 matrix {\n<", width, rows); break; case 1: - sprintf(buffer, "%d %d 8 matrix {\n<", width, rows); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%d %d 8 matrix {\n<", width, rows); break; - case 2: - sprintf(buffer, "%d %d 8 matrix {\n<", width, rows); - Tcl_AppendResult(interp, buffer, NULL); + default: + Tcl_AppendPrintfToObj(psObj, "%d %d 8 matrix {\n<", width, rows); break; } for (yy = band; yy > band - rows; yy--) { @@ -1318,22 +1392,20 @@ TkPostscriptImage( } mask >>= 1; if (mask == 0) { - sprintf(buffer, "%02X", data); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", data); lineLen += 2; if (lineLen > 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } - mask=0x80; - data=0x00; + mask = 0x80; + data = 0x00; } } if ((width % 8) != 0) { - sprintf(buffer, "%02X", data); - Tcl_AppendResult(interp, buffer, NULL); - mask=0x80; - data=0x00; + Tcl_AppendPrintfToObj(psObj, "%02X", data); + mask = 0x80; + data = 0x00; } break; } @@ -1346,17 +1418,17 @@ TkPostscriptImage( for (xx = x; xx < x+width; xx ++) { TkImageGetColor(&cdata, XGetPixel(ximage, xx, yy), &red, &green, &blue); - sprintf(buffer, "%02X", (int) floor(0.5 + 255.0 * + Tcl_AppendPrintfToObj(psObj, "%02X", + (int) floor(0.5 + 255.0 * (0.30 * red + 0.59 * green + 0.11 * blue))); - Tcl_AppendResult(interp, buffer, NULL); lineLen += 2; if (lineLen > 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } } break; - case 2: + default: /* * Finally, color mode. Here, just output the red, green, and * blue values directly. @@ -1365,15 +1437,14 @@ TkPostscriptImage( for (xx = x; xx < x+width; xx++) { TkImageGetColor(&cdata, XGetPixel(ximage, xx, yy), &red, &green, &blue); - sprintf(buffer, "%02X%02X%02X", + Tcl_AppendPrintfToObj(psObj, "%02X%02X%02X", (int) floor(0.5 + 255.0 * red), (int) floor(0.5 + 255.0 * green), (int) floor(0.5 + 255.0 * blue)); - Tcl_AppendResult(interp, buffer, NULL); lineLen += 6; if (lineLen > 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } } break; @@ -1381,15 +1452,13 @@ TkPostscriptImage( } switch (level) { case 0: case 1: - sprintf(buffer, ">\n} image\n"); break; - case 2: - sprintf(buffer, ">\n} false 3 colorimage\n"); break; + Tcl_AppendToObj(psObj, ">\n} image\n", -1); break; + default: + Tcl_AppendToObj(psObj, ">\n} false 3 colorimage\n", -1); break; } - Tcl_AppendResult(interp, buffer, NULL); - sprintf(buffer, "0 %d translate\n", rows); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "0 %d translate\n", rows); } - ckfree((char *) cdata.colors); + ckfree(cdata.colors); return TCL_OK; } @@ -1423,153 +1492,32 @@ Tk_PostscriptPhoto( { TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo; int colorLevel = psInfoPtr->colorLevel; - static int codeIncluded = 0; - + const char *displayOperation, *decode; unsigned char *pixelPtr; - char buffer[256], cspace[40], decode[40]; - int bpc; - int xx, yy, lineLen; + int bpc, xx, yy, lineLen, alpha; float red, green, blue; - int alpha; - int bytesPerLine=0, maxWidth=0; - + int bytesPerLine = 0, maxWidth = 0; unsigned char opaque = 255; unsigned char *alphaPtr; int alphaOffset, alphaPitch, alphaIncr; + Tcl_Obj *psObj; if (psInfoPtr->prepass) { - codeIncluded = 0; return TCL_OK; } - /* - * Define the "TkPhoto" function, which is a modified version of the - * original "transparentimage" function posted by ian@five-d.com (Ian - * Kemmish) to comp.lang.postscript. For a monochrome colorLevel this is a - * slightly different version that uses the imagemask command instead of - * image. - */ - - if (!codeIncluded && (colorLevel != 0)) { + if (colorLevel != 0) { /* * Color and gray-scale code. */ - codeIncluded = !0; - Tcl_AppendResult(interp, - "/TkPhoto { \n", - " gsave \n", - " 32 dict begin \n", - " /tinteger exch def \n", - " /transparent 1 string def \n", - " transparent 0 tinteger put \n", - " /olddict exch def \n", - " olddict /DataSource get dup type /filetype ne { \n", - " olddict /DataSource 3 -1 roll \n", - " 0 () /SubFileDecode filter put \n", - " } { \n", - " pop \n", - " } ifelse \n", - " /newdict olddict maxlength dict def \n", - " olddict newdict copy pop \n", - " /w newdict /Width get def \n", - " /crpp newdict /Decode get length 2 idiv def \n", - " /str w string def \n", - " /pix w crpp mul string def \n", - " /substrlen 2 w log 2 log div floor exp cvi def \n", - " /substrs [ \n", - " { \n", - " substrlen string \n", - " 0 1 substrlen 1 sub { \n", - " 1 index exch tinteger put \n", - " } for \n", - " /substrlen substrlen 2 idiv def \n", - " substrlen 0 eq {exit} if \n", - " } loop \n", - " ] def \n", - " /h newdict /Height get def \n", - " 1 w div 1 h div matrix scale \n", - " olddict /ImageMatrix get exch matrix concatmatrix \n", - " matrix invertmatrix concat \n", - " newdict /Height 1 put \n", - " newdict /DataSource pix put \n", - " /mat [w 0 0 h 0 0] def \n", - " newdict /ImageMatrix mat put \n", - " 0 1 h 1 sub { \n", - " mat 5 3 -1 roll neg put \n", - " olddict /DataSource get str readstring pop pop \n", - " /tail str def \n", - " /x 0 def \n", - " olddict /DataSource get pix readstring pop pop \n", - " { \n", - " tail transparent search dup /done exch not def \n", - " {exch pop exch pop} if \n", - " /w1 exch length def \n", - " w1 0 ne { \n", - " newdict /DataSource ", - " pix x crpp mul w1 crpp mul getinterval put \n", - " newdict /Width w1 put \n", - " mat 4 x neg put \n", - " /x x w1 add def \n", - " newdict image \n", - " /tail tail w1 tail length w1 sub getinterval def \n", - " } if \n", - " done {exit} if \n", - " tail substrs { \n", - " anchorsearch {pop} if \n", - " } forall \n", - " /tail exch def \n", - " tail length 0 eq {exit} if \n", - " /x w tail length sub def \n", - " } loop \n", - " } for \n", - " end \n", - " grestore \n", - "} bind def \n\n\n", NULL); - } else if (!codeIncluded && (colorLevel == 0)) { + displayOperation = "TkPhotoColor"; + } else { /* * Monochrome-only code */ - codeIncluded = !0; - Tcl_AppendResult(interp, - "/TkPhoto { \n", - " gsave \n", - " 32 dict begin \n", - " /dummyInteger exch def \n", - " /olddict exch def \n", - " olddict /DataSource get dup type /filetype ne { \n", - " olddict /DataSource 3 -1 roll \n", - " 0 () /SubFileDecode filter put \n", - " } { \n", - " pop \n", - " } ifelse \n", - " /newdict olddict maxlength dict def \n", - " olddict newdict copy pop \n", - " /w newdict /Width get def \n", - " /pix w 7 add 8 idiv string def \n", - " /h newdict /Height get def \n", - " 1 w div 1 h div matrix scale \n", - " olddict /ImageMatrix get exch matrix concatmatrix \n", - " matrix invertmatrix concat \n", - " newdict /Height 1 put \n", - " newdict /DataSource pix put \n", - " /mat [w 0 0 h 0 0] def \n", - " newdict /ImageMatrix mat put \n", - " 0 1 h 1 sub { \n", - " mat 5 3 -1 roll neg put \n", - " 0.000 0.000 0.000 setrgbcolor \n", - " olddict /DataSource get pix readstring pop pop \n", - " newdict /DataSource pix put \n", - " newdict imagemask \n", - " 1.000 1.000 1.000 setrgbcolor \n", - " olddict /DataSource get pix readstring pop pop \n", - " newdict /DataSource pix put \n", - " newdict imagemask \n", - " } for \n", - " end \n", - " grestore \n", - "} bind def \n\n\n", NULL); + displayOperation = "TkPhotoMono"; } /* @@ -1581,14 +1529,14 @@ Tk_PostscriptPhoto( switch (colorLevel) { case 0: bytesPerLine = (width + 7) / 8; maxWidth = 240000; break; case 1: bytesPerLine = width; maxWidth = 60000; break; - case 2: bytesPerLine = 3 * width; maxWidth = 20000; break; + default: bytesPerLine = 3 * width; maxWidth = 20000; break; } if (bytesPerLine > 60000) { Tcl_ResetResult(interp); - sprintf(buffer, - "Can't generate Postscript for images more than %d pixels wide", - maxWidth); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't generate Postscript for images more than %d pixels wide", + maxWidth)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "PS", "MEMLIMIT", NULL); return TCL_ERROR; } @@ -1596,35 +1544,32 @@ Tk_PostscriptPhoto( * Set up the postscript code except for the image-data stream. */ + psObj = GetPostscriptBuffer(interp); switch (colorLevel) { case 0: - strcpy(cspace, "/DeviceGray"); - strcpy(decode, "[1 0]"); + Tcl_AppendToObj(psObj, "/DeviceGray setcolorspace\n\n", -1); + decode = "1 0"; bpc = 1; break; case 1: - strcpy(cspace, "/DeviceGray"); - strcpy(decode, "[0 1]"); + Tcl_AppendToObj(psObj, "/DeviceGray setcolorspace\n\n", -1); + decode = "0 1"; bpc = 8; break; default: - strcpy(cspace, "/DeviceRGB"); - strcpy(decode, "[0 1 0 1 0 1]"); + Tcl_AppendToObj(psObj, "/DeviceRGB setcolorspace\n\n", -1); + decode = "0 1 0 1 0 1"; bpc = 8; break; } - - Tcl_AppendResult(interp, cspace, " setcolorspace\n\n", NULL); - - sprintf(buffer, " /Width %d\n /Height %d\n /BitsPerComponent %d\n", - width, height, bpc); - Tcl_AppendResult(interp, "<<\n /ImageType 1\n", buffer, - " /DataSource currentfile /ASCIIHexDecode filter\n", NULL); - - sprintf(buffer, " /ImageMatrix [1 0 0 -1 0 %d]\n", height); - Tcl_AppendResult(interp, buffer, " /Decode ", decode, - "\n>>\n1 TkPhoto\n", NULL); + Tcl_AppendPrintfToObj(psObj, + "<<\n /ImageType 1\n" + " /Width %d\n /Height %d\n /BitsPerComponent %d\n" + " /DataSource currentfile\n /ASCIIHexDecode filter\n" + " /ImageMatrix [1 0 0 -1 0 %d]\n /Decode [%s]\n>>\n" + "1 %s\n", + width, height, bpc, height, decode, displayOperation); /* * Check the PhotoImageBlock information. We assume that: @@ -1684,20 +1629,18 @@ Tk_PostscriptPhoto( } mask >>= 1; if (mask == 0) { - sprintf(buffer, "%02X", data); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", data); lineLen += 2; if (lineLen >= 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } mask = 0x80; data = 0x00; } } if ((width % 8) != 0) { - sprintf(buffer, "%02X", data); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", data); mask = 0x80; data = 0x00; } @@ -1725,20 +1668,18 @@ Tk_PostscriptPhoto( } mask >>= 1; if (mask == 0) { - sprintf(buffer, "%02X", data); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", data); lineLen += 2; if (lineLen >= 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } mask = 0x80; data = 0x00; } } if ((width % 8) != 0) { - sprintf(buffer, "%02X", data); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", data); mask = 0x80; data = 0x00; } @@ -1753,12 +1694,11 @@ Tk_PostscriptPhoto( for (xx = 0; xx < width; xx ++) { alpha = *(alphaPtr + (yy * alphaPitch) + (xx * alphaIncr) + alphaOffset); - sprintf(buffer, "%02X", alpha | 0x01); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", alpha | 0x01); lineLen += 2; if (lineLen >= 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } } @@ -1775,13 +1715,12 @@ Tk_PostscriptPhoto( green = pixelPtr[blockPtr->offset[1]]; blue = pixelPtr[blockPtr->offset[2]]; - sprintf(buffer, "%02X", (int) floor(0.5 + + Tcl_AppendPrintfToObj(psObj, "%02X", (int) floor(0.5 + ( 0.3086 * red + 0.6094 * green + 0.0820 * blue))); - Tcl_AppendResult(interp, buffer, NULL); lineLen += 2; if (lineLen >= 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } } break; @@ -1795,12 +1734,11 @@ Tk_PostscriptPhoto( for (xx = 0; xx < width; xx ++) { alpha = *(alphaPtr + (yy * alphaPitch) + (xx * alphaIncr) + alphaOffset); - sprintf(buffer, "%02X", alpha | 0x01); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%02X", alpha | 0x01); lineLen += 2; if (lineLen >= 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } } @@ -1813,22 +1751,25 @@ Tk_PostscriptPhoto( pixelPtr = blockPtr->pixelPtr + (yy * blockPtr->pitch) + (xx * blockPtr->pixelSize); - sprintf(buffer, "%02X%02X%02X", + Tcl_AppendPrintfToObj(psObj, "%02X%02X%02X", pixelPtr[blockPtr->offset[0]], pixelPtr[blockPtr->offset[1]], pixelPtr[blockPtr->offset[2]]); - Tcl_AppendResult(interp, buffer, NULL); lineLen += 6; if (lineLen >= 60) { lineLen = 0; - Tcl_AppendResult(interp, "\n", NULL); + Tcl_AppendToObj(psObj, "\n", -1); } } break; } } - Tcl_AppendResult(interp, ">\n", NULL); + /* + * The end-of-data marker. + */ + + Tcl_AppendToObj(psObj, ">\n", -1); return TCL_OK; } |