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authorhobbs <hobbs>1999-12-14 06:52:24 (GMT)
committerhobbs <hobbs>1999-12-14 06:52:24 (GMT)
commitb6b6ff8f0eee42e270a45b019789faa444ed4dad (patch)
tree5b5ddecf0f3677601c5511eaded466191ef3ba8a /generic/tkCanvPs.c
parent9b37fa05b11850066aed28ed447109e55708bce0 (diff)
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* generic/tkStubInit.c:
* generic/tkDecls.h: * generic/tkIntXlibDecls.h: * generic/tkInt.decls: added XSetDashes and XWarpPointer * generic/tk.decls: added Tk_CreateSmoothMethod, and reserved two spots * generic/tk.h: added Tk_SmoothMethod struct, state item to canvas record, #defines for item state, support for using old char*-based canvas item C creation procedures with -DUSE_OLD_CANVAS, Tk_Dash, Tk_TSOffset (-offsets) & Tk_Outline structs and #defs, decls for dash, outline and postscript routines * generic/tkBind.c: added support for Quadruple clicks, and added the -warp option to 'event' with pointer warping routines * xlib/xgc.c: * generic/tkRectOval.c: * generic/tkCanvArc.c: * generic/tkCanvBmap.c: * generic/tkCanvImg.c: * generic/tkCanvLine.c: * generic/tkCanvPoly.c: * generic/tkCanvPs.c: * generic/tkCanvText.c: * generic/tkCanvUtil.c: * generic/tkCanvWind.c: * generic/tkCanvas.c: * generic/tkCanvas.h: Canvas and items received overhaul to with the addition of the dash patch (Nijtmans, et al) This includes objectification of the 'canvas' command, as well as support for (where appropriate) dashes in items, extended stipple support, state for all items, and postscript generation of images and windows. See the new canvas man page for related docs. * generic/tkEntry.c: added entry widget validation, see entry.n * generic/tkEvent.c: on simulated events, ButtonPress should be matched with ButtonRelease to be correct * generic/tkFont.c: corrected possible null reference * generic/tkFrame.c: made frame a Tcl_Obj based command * generic/tkGet.c: added TkGetDoublePixels * generic/tkImage.c: bug fixes from Img patch and new Tk_PostscriptImage and Tk_SetTSOrigin functions * generic/tkImgBmap.c: new ImgBmapPostscript function * generic/tkImgPhoto.c: new Tk_CreatePhotoOption, Tk_DitherPhoto * generic/tkInt.h: declarations for some new functions * generic/tkMessage.c: reworked relief drawing * generic/tkOldConfig.c: added TK_CONFIG_OBJS so old style ConfigureWidget calls can pass in Tcl_Obj arrays * generic/tkScrollbar.c: * generic/tkScrollbar.h: made -orient use an option table * generic/tkText.c: * generic/tkText.h: made -wrap and -state use option tables * generic/tkTextBTree.c: * generic/tkTextDisp.c: * generic/tkTextImage.c: * generic/tkTextMark.c: * generic/tkTextTag.c: * generic/tkTextWind.c: added support for -elide and -state hidden * generic/tkTrig.c: changed TkMakeBezierCurve to support returning the upper limit of points needed for spline * generic/tkUtil.c: new option table parsing routines * generic/tkWindow.c: init'ing of warp stuff, mouseButtonState
Diffstat (limited to 'generic/tkCanvPs.c')
-rw-r--r--generic/tkCanvPs.c504
1 files changed, 400 insertions, 104 deletions
diff --git a/generic/tkCanvPs.c b/generic/tkCanvPs.c
index 4c99b15..c234320 100644
--- a/generic/tkCanvPs.c
+++ b/generic/tkCanvPs.c
@@ -11,7 +11,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkCanvPs.c,v 1.5 1999/04/16 01:51:11 stanton Exp $
+ * RCS: @(#) $Id: tkCanvPs.c,v 1.6 1999/12/14 06:52:26 hobbs Exp $
*/
#include "tkInt.h"
@@ -68,6 +68,8 @@ typedef struct TkPostscriptInfo {
* the pre-pass that collects font information,
* so the Postscript generated isn't
* relevant. */
+ int prolog; /* Non-zero means output should contain
+ the file prolog.ps in the header. */
} TkPostscriptInfo;
/*
@@ -99,6 +101,8 @@ static Tk_ConfigSpec configSpecs[] = {
"", Tk_Offset(TkPostscriptInfo, pageXString), 0},
{TK_CONFIG_STRING, "-pagey", (char *) NULL, (char *) NULL,
"", Tk_Offset(TkPostscriptInfo, pageYString), 0},
+ {TK_CONFIG_BOOLEAN, "-prolog", (char *) NULL, (char *) NULL,
+ "", Tk_Offset(TkPostscriptInfo, prolog), 0},
{TK_CONFIG_BOOLEAN, "-rotate", (char *) NULL, (char *) NULL,
"", Tk_Offset(TkPostscriptInfo, rotate), 0},
{TK_CONFIG_PIXELS, "-width", (char *) NULL, (char *) NULL,
@@ -124,7 +128,7 @@ static CONST char * CONST prolog[]= {
\n\
% This is a standard prolog for Postscript generated by Tk's canvas\n\
% widget.\n\
-% RCS: @(#) $Id: tkCanvPs.c,v 1.5 1999/04/16 01:51:11 stanton Exp $\n\
+% RCS: @(#) $Id: tkCanvPs.c,v 1.6 1999/12/14 06:52:26 hobbs Exp $\n\
\n\
% The definitions below just define all of the variables used in\n\
% any of the procedures here. This is needed for obscure reasons\n\
@@ -461,13 +465,15 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
* to know that argv[1] is
* "postscript". */
{
- TkPostscriptInfo psInfo, *oldInfoPtr;
+ TkPostscriptInfo psInfo;
+ Tk_PostscriptInfo oldInfoPtr;
int result;
Tk_Item *itemPtr;
#define STRING_LENGTH 400
char string[STRING_LENGTH+1], *p;
time_t now;
size_t length;
+ Tk_Window tkwin = canvasPtr->tkwin;
int deltaX = 0, deltaY = 0; /* Offset of lower-left corner of
* area to be marked up, measured
* in canvas units from the positioning
@@ -487,8 +493,8 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*----------------------------------------------------------------
*/
- oldInfoPtr = canvasPtr->psInfoPtr;
- canvasPtr->psInfoPtr = &psInfo;
+ oldInfoPtr = canvasPtr->psInfo;
+ canvasPtr->psInfo = (Tk_PostscriptInfo) &psInfo;
psInfo.x = canvasPtr->xOrigin;
psInfo.y = canvasPtr->yOrigin;
psInfo.width = -1;
@@ -510,8 +516,9 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
psInfo.channelName = NULL;
psInfo.chan = NULL;
psInfo.prepass = 0;
+ psInfo.prolog = 1;
Tcl_InitHashTable(&psInfo.fontTable, TCL_STRING_KEYS);
- result = Tk_ConfigureWidget(canvasPtr->interp, canvasPtr->tkwin,
+ result = Tk_ConfigureWidget(interp, tkwin,
configSpecs, argc-2, argv+2, (char *) &psInfo,
TK_CONFIG_ARGV_ONLY);
if (result != TCL_OK) {
@@ -519,41 +526,41 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
}
if (psInfo.width == -1) {
- psInfo.width = Tk_Width(canvasPtr->tkwin);
+ psInfo.width = Tk_Width(tkwin);
}
if (psInfo.height == -1) {
- psInfo.height = Tk_Height(canvasPtr->tkwin);
+ psInfo.height = Tk_Height(tkwin);
}
psInfo.x2 = psInfo.x + psInfo.width;
psInfo.y2 = psInfo.y + psInfo.height;
if (psInfo.pageXString != NULL) {
- if (GetPostscriptPoints(canvasPtr->interp, psInfo.pageXString,
+ if (GetPostscriptPoints(interp, psInfo.pageXString,
&psInfo.pageX) != TCL_OK) {
goto cleanup;
}
}
if (psInfo.pageYString != NULL) {
- if (GetPostscriptPoints(canvasPtr->interp, psInfo.pageYString,
+ if (GetPostscriptPoints(interp, psInfo.pageYString,
&psInfo.pageY) != TCL_OK) {
goto cleanup;
}
}
if (psInfo.pageWidthString != NULL) {
- if (GetPostscriptPoints(canvasPtr->interp, psInfo.pageWidthString,
+ if (GetPostscriptPoints(interp, psInfo.pageWidthString,
&psInfo.scale) != TCL_OK) {
goto cleanup;
}
psInfo.scale /= psInfo.width;
} else if (psInfo.pageHeightString != NULL) {
- if (GetPostscriptPoints(canvasPtr->interp, psInfo.pageHeightString,
+ if (GetPostscriptPoints(interp, psInfo.pageHeightString,
&psInfo.scale) != TCL_OK) {
goto cleanup;
}
psInfo.scale /= psInfo.height;
} else {
- psInfo.scale = (72.0/25.4)*WidthMMOfScreen(Tk_Screen(canvasPtr->tkwin));
- psInfo.scale /= WidthOfScreen(Tk_Screen(canvasPtr->tkwin));
+ psInfo.scale = (72.0/25.4)*WidthMMOfScreen(Tk_Screen(tkwin));
+ psInfo.scale /= WidthOfScreen(Tk_Screen(tkwin));
}
switch (psInfo.pageAnchor) {
case TK_ANCHOR_NW:
@@ -601,7 +608,7 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
} else if (strncmp(psInfo.colorMode, "color", length) == 0) {
psInfo.colorLevel = 2;
} else {
- Tcl_AppendResult(canvasPtr->interp, "bad color mode \"",
+ Tcl_AppendResult(interp, "bad color mode \"",
psInfo.colorMode, "\": must be monochrome, ",
"gray, or color", (char *) NULL);
goto cleanup;
@@ -615,7 +622,7 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*/
if (psInfo.channelName != NULL) {
- Tcl_AppendResult(canvasPtr->interp, "can't specify both -file",
+ Tcl_AppendResult(interp, "can't specify both -file",
" and -channel", (char *) NULL);
result = TCL_ERROR;
goto cleanup;
@@ -626,18 +633,18 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
* the -file specification.
*/
- if (Tcl_IsSafe(canvasPtr->interp)) {
- Tcl_AppendResult(canvasPtr->interp, "can't specify -file in a",
+ if (Tcl_IsSafe(interp)) {
+ Tcl_AppendResult(interp, "can't specify -file in a",
" safe interpreter", (char *) NULL);
result = TCL_ERROR;
goto cleanup;
}
- p = Tcl_TranslateFileName(canvasPtr->interp, psInfo.fileName, &buffer);
+ p = Tcl_TranslateFileName(interp, psInfo.fileName, &buffer);
if (p == NULL) {
goto cleanup;
}
- psInfo.chan = Tcl_OpenFileChannel(canvasPtr->interp, p, "w", 0666);
+ psInfo.chan = Tcl_OpenFileChannel(interp, p, "w", 0666);
Tcl_DStringFree(&buffer);
if (psInfo.chan == NULL) {
goto cleanup;
@@ -652,14 +659,14 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
* is open for writing.
*/
- psInfo.chan = Tcl_GetChannel(canvasPtr->interp, psInfo.channelName,
+ 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(canvasPtr->interp, "channel \"",
+ Tcl_AppendResult(interp, "channel \"",
psInfo.channelName, "\" wasn't opened for writing",
(char *) NULL);
result = TCL_ERROR;
@@ -687,9 +694,9 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
if (itemPtr->typePtr->postscriptProc == NULL) {
continue;
}
- result = (*itemPtr->typePtr->postscriptProc)(canvasPtr->interp,
+ result = (*itemPtr->typePtr->postscriptProc)(interp,
(Tk_Canvas) canvasPtr, itemPtr, 1);
- Tcl_ResetResult(canvasPtr->interp);
+ Tcl_ResetResult(interp);
if (result != TCL_OK) {
/*
* An error just occurred. Just skip out of this loop.
@@ -709,21 +716,22 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*--------------------------------------------------------
*/
- Tcl_AppendResult(canvasPtr->interp, "%!PS-Adobe-3.0 EPSF-3.0\n",
+ if (psInfo.prolog) {
+ Tcl_AppendResult(interp, "%!PS-Adobe-3.0 EPSF-3.0\n",
"%%Creator: Tk Canvas Widget\n", (char *) NULL);
#ifdef HAVE_PW_GECOS
if (!Tcl_IsSafe(interp)) {
struct passwd *pwPtr = getpwuid(getuid()); /* INTL: Native. */
- Tcl_AppendResult(canvasPtr->interp, "%%For: ",
+ Tcl_AppendResult(interp, "%%For: ",
(pwPtr != NULL) ? pwPtr->pw_gecos : "Unknown", "\n",
(char *) NULL);
endpwent();
}
#endif /* HAVE_PW_GECOS */
- Tcl_AppendResult(canvasPtr->interp, "%%Title: Window ",
- Tk_PathName(canvasPtr->tkwin), "\n", (char *) NULL);
+ Tcl_AppendResult(interp, "%%Title: Window ",
+ Tk_PathName(tkwin), "\n", (char *) NULL);
time(&now);
- Tcl_AppendResult(canvasPtr->interp, "%%CreationDate: ",
+ Tcl_AppendResult(interp, "%%CreationDate: ",
ctime(&now), (char *) NULL); /* INTL: Native. */
if (!psInfo.rotate) {
sprintf(string, "%d %d %d %d",
@@ -741,21 +749,21 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
(int) (psInfo.pageY + psInfo.scale*(deltaX + psInfo.width)
+ 1.0));
}
- Tcl_AppendResult(canvasPtr->interp, "%%BoundingBox: ", string,
+ Tcl_AppendResult(interp, "%%BoundingBox: ", string,
"\n", (char *) NULL);
- Tcl_AppendResult(canvasPtr->interp, "%%Pages: 1\n",
+ Tcl_AppendResult(interp, "%%Pages: 1\n",
"%%DocumentData: Clean7Bit\n", (char *) NULL);
- Tcl_AppendResult(canvasPtr->interp, "%%Orientation: ",
+ Tcl_AppendResult(interp, "%%Orientation: ",
psInfo.rotate ? "Landscape\n" : "Portrait\n", (char *) NULL);
p = "%%DocumentNeededResources: font ";
for (hPtr = Tcl_FirstHashEntry(&psInfo.fontTable, &search);
hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {
- Tcl_AppendResult(canvasPtr->interp, p,
+ Tcl_AppendResult(interp, p,
Tcl_GetHashKey(&psInfo.fontTable, hPtr),
"\n", (char *) NULL);
p = "%%+ font ";
}
- Tcl_AppendResult(canvasPtr->interp, "%%EndComments\n\n", (char *) NULL);
+ Tcl_AppendResult(interp, "%%EndComments\n\n", (char *) NULL);
/*
* Insert the prolog
@@ -765,7 +773,7 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
}
if (psInfo.chan != NULL) {
- Tcl_Write(psInfo.chan, Tcl_GetStringResult(canvasPtr->interp), -1);
+ Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1);
Tcl_ResetResult(canvasPtr->interp);
}
@@ -776,14 +784,14 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*/
sprintf(string, "/CL %d def\n", psInfo.colorLevel);
- Tcl_AppendResult(canvasPtr->interp, "%%BeginSetup\n", string,
+ Tcl_AppendResult(interp, "%%BeginSetup\n", string,
(char *) NULL);
for (hPtr = Tcl_FirstHashEntry(&psInfo.fontTable, &search);
hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {
- Tcl_AppendResult(canvasPtr->interp, "%%IncludeResource: font ",
+ Tcl_AppendResult(interp, "%%IncludeResource: font ",
Tcl_GetHashKey(&psInfo.fontTable, hPtr), "\n", (char *) NULL);
}
- Tcl_AppendResult(canvasPtr->interp, "%%EndSetup\n\n", (char *) NULL);
+ Tcl_AppendResult(interp, "%%EndSetup\n\n", (char *) NULL);
/*
*-----------------------------------------------------------
@@ -793,26 +801,31 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*-----------------------------------------------------------
*/
- Tcl_AppendResult(canvasPtr->interp, "%%Page: 1 1\n", "save\n",
+ Tcl_AppendResult(interp, "%%Page: 1 1\n", "save\n",
(char *) NULL);
sprintf(string, "%.1f %.1f translate\n", psInfo.pageX, psInfo.pageY);
- Tcl_AppendResult(canvasPtr->interp, string, (char *) NULL);
+ Tcl_AppendResult(interp, string, (char *) NULL);
if (psInfo.rotate) {
- Tcl_AppendResult(canvasPtr->interp, "90 rotate\n", (char *) NULL);
+ Tcl_AppendResult(interp, "90 rotate\n", (char *) NULL);
}
sprintf(string, "%.4g %.4g scale\n", psInfo.scale, psInfo.scale);
- Tcl_AppendResult(canvasPtr->interp, string, (char *) NULL);
+ Tcl_AppendResult(interp, string, (char *) NULL);
sprintf(string, "%d %d translate\n", deltaX - psInfo.x, deltaY);
- Tcl_AppendResult(canvasPtr->interp, string, (char *) NULL);
+ Tcl_AppendResult(interp, string, (char *) NULL);
sprintf(string, "%d %.15g moveto %d %.15g lineto %d %.15g lineto %d %.15g",
- psInfo.x, Tk_CanvasPsY((Tk_Canvas) canvasPtr, (double) psInfo.y),
- psInfo.x2, Tk_CanvasPsY((Tk_Canvas) canvasPtr, (double) psInfo.y),
- psInfo.x2, Tk_CanvasPsY((Tk_Canvas) canvasPtr, (double) psInfo.y2),
- psInfo.x, Tk_CanvasPsY((Tk_Canvas) canvasPtr, (double) psInfo.y2));
- Tcl_AppendResult(canvasPtr->interp, string,
+ psInfo.x,
+ Tk_PostscriptY((double) psInfo.y, (Tk_PostscriptInfo) &psInfo),
+ psInfo.x2,
+ Tk_PostscriptY((double) psInfo.y, (Tk_PostscriptInfo) &psInfo),
+ psInfo.x2,
+ Tk_PostscriptY((double) psInfo.y2, (Tk_PostscriptInfo) &psInfo),
+ psInfo.x,
+ Tk_PostscriptY((double) psInfo.y2, (Tk_PostscriptInfo) &psInfo));
+ Tcl_AppendResult(interp, string,
" lineto closepath clip newpath\n", (char *) NULL);
+ }
if (psInfo.chan != NULL) {
- Tcl_Write(psInfo.chan, Tcl_GetStringResult(canvasPtr->interp), -1);
+ Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1);
Tcl_ResetResult(canvasPtr->interp);
}
@@ -833,21 +846,24 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
if (itemPtr->typePtr->postscriptProc == NULL) {
continue;
}
- Tcl_AppendResult(canvasPtr->interp, "gsave\n", (char *) NULL);
- result = (*itemPtr->typePtr->postscriptProc)(canvasPtr->interp,
+ if (itemPtr->state == TK_STATE_HIDDEN) {
+ continue;
+ }
+ Tcl_AppendResult(interp, "gsave\n", (char *) NULL);
+ 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(canvasPtr->interp, msg);
+ Tcl_AddErrorInfo(interp, msg);
goto cleanup;
}
- Tcl_AppendResult(canvasPtr->interp, "grestore\n", (char *) NULL);
+ Tcl_AppendResult(interp, "grestore\n", (char *) NULL);
if (psInfo.chan != NULL) {
- Tcl_Write(psInfo.chan, Tcl_GetStringResult(canvasPtr->interp), -1);
- Tcl_ResetResult(canvasPtr->interp);
+ Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1);
+ Tcl_ResetResult(interp);
}
}
@@ -858,10 +874,12 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*---------------------------------------------------------------------
*/
- Tcl_AppendResult(canvasPtr->interp, "restore showpage\n\n",
+ if (psInfo.prolog) {
+ Tcl_AppendResult(interp, "restore showpage\n\n",
"%%Trailer\nend\n%%EOF\n", (char *) NULL);
+ }
if (psInfo.chan != NULL) {
- Tcl_Write(psInfo.chan, Tcl_GetStringResult(canvasPtr->interp), -1);
+ Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1);
Tcl_ResetResult(canvasPtr->interp);
}
@@ -895,20 +913,20 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
ckfree(psInfo.fileName);
}
if ((psInfo.chan != NULL) && (psInfo.channelName == NULL)) {
- Tcl_Close(canvasPtr->interp, psInfo.chan);
+ Tcl_Close(interp, psInfo.chan);
}
if (psInfo.channelName != NULL) {
ckfree(psInfo.channelName);
}
Tcl_DeleteHashTable(&psInfo.fontTable);
- canvasPtr->psInfoPtr = oldInfoPtr;
+ canvasPtr->psInfo = (Tk_PostscriptInfo) oldInfoPtr;
return result;
}
/*
*--------------------------------------------------------------
*
- * Tk_CanvasPsColor --
+ * Tk_PostscriptColor --
*
* This procedure is called by individual canvas items when
* they want to set a color value for output. Given information
@@ -928,14 +946,12 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*/
int
-Tk_CanvasPsColor(interp, canvas, colorPtr)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
+Tk_PostscriptColor(interp, psInfo, colorPtr)
+ Tcl_Interp *interp;
+ Tk_PostscriptInfo psInfo; /* Postscript info. */
XColor *colorPtr; /* Information about color. */
{
- TkCanvas *canvasPtr = (TkCanvas *) canvas;
- TkPostscriptInfo *psInfoPtr = canvasPtr->psInfoPtr;
+ TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo;
int tmp;
double red, green, blue;
char string[200];
@@ -989,7 +1005,7 @@ Tk_CanvasPsColor(interp, canvas, colorPtr)
/*
*--------------------------------------------------------------
*
- * Tk_CanvasPsFont --
+ * Tk_PostscriptFont --
*
* This procedure is called by individual canvas items when
* they want to output text. Given information about an X
@@ -1010,15 +1026,13 @@ Tk_CanvasPsColor(interp, canvas, colorPtr)
*/
int
-Tk_CanvasPsFont(interp, canvas, tkfont)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
+Tk_PostscriptFont(interp, psInfo, tkfont)
+ Tcl_Interp *interp;
+ Tk_PostscriptInfo psInfo; /* Postscript Info. */
Tk_Font tkfont; /* Information about font in which text
* is to be printed. */
{
- TkCanvas *canvasPtr = (TkCanvas *) canvas;
- TkPostscriptInfo *psInfoPtr = canvasPtr->psInfoPtr;
+ TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo;
char *end;
char pointString[TCL_INTEGER_SPACE];
Tcl_DString ds;
@@ -1083,7 +1097,7 @@ Tk_CanvasPsFont(interp, canvas, tkfont)
/*
*--------------------------------------------------------------
*
- * Tk_CanvasPsBitmap --
+ * Tk_PostscriptBitmap --
*
* This procedure is called to output the contents of a
* sub-region of a bitmap in proper image data format for
@@ -1103,18 +1117,18 @@ Tk_CanvasPsFont(interp, canvas, tkfont)
*/
int
-Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
- * or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
+Tk_PostscriptBitmap(interp, tkwin, psInfo, bitmap, startX, startY, width,
+ height)
+ Tcl_Interp *interp;
+ Tk_Window tkwin;
+ Tk_PostscriptInfo psInfo; /* Postscript info. */
Pixmap bitmap; /* Bitmap for which to generate
* Postscript. */
int startX, startY; /* Coordinates of upper-left corner
* of rectangular region to output. */
int width, height; /* Height of rectangular region. */
{
- TkCanvas *canvasPtr = (TkCanvas *) canvas;
- TkPostscriptInfo *psInfoPtr = canvasPtr->psInfoPtr;
+ TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo;
XImage *imagePtr;
int charsInLine, x, y, lastX, lastY, value, mask;
unsigned int totalWidth, totalHeight;
@@ -1135,10 +1149,10 @@ Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
* it shouldn't matter here.
*/
- XGetGeometry(Tk_Display(Tk_CanvasTkwin(canvas)), bitmap, &dummyRoot,
+ XGetGeometry(Tk_Display(tkwin), bitmap, &dummyRoot,
(int *) &dummyX, (int *) &dummyY, (unsigned int *) &totalWidth,
(unsigned int *) &totalHeight, &dummyBorderwidth, &dummyDepth);
- imagePtr = XGetImage(Tk_Display(canvasPtr->tkwin), bitmap, 0, 0,
+ imagePtr = XGetImage(Tk_Display(tkwin), bitmap, 0, 0,
totalWidth, totalHeight, 1, XYPixmap);
Tcl_AppendResult(interp, "<", (char *) NULL);
mask = 0x80;
@@ -1180,7 +1194,7 @@ Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
/*
*--------------------------------------------------------------
*
- * Tk_CanvasPsStipple --
+ * Tk_PostscriptStipple --
*
* This procedure is called by individual canvas items when
* they have created a path that they'd like to be filled with
@@ -1202,14 +1216,14 @@ Tk_CanvasPsBitmap(interp, canvas, bitmap, startX, startY, width, height)
*/
int
-Tk_CanvasPsStipple(interp, canvas, bitmap)
- Tcl_Interp *interp; /* Interpreter for returning Postscript
+Tk_PostscriptStipple(interp, tkwin, psInfo, bitmap)
+ Tcl_Interp *interp;
+ Tk_Window tkwin;
+ Tk_PostscriptInfo psInfo; /* Interpreter for returning Postscript
* or error message. */
- Tk_Canvas canvas; /* Information about canvas. */
Pixmap bitmap; /* Bitmap to use for stippling. */
{
- TkCanvas *canvasPtr = (TkCanvas *) canvas;
- TkPostscriptInfo *psInfoPtr = canvasPtr->psInfoPtr;
+ TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo;
int width, height;
char string[TCL_INTEGER_SPACE * 2];
Window dummyRoot;
@@ -1228,12 +1242,12 @@ Tk_CanvasPsStipple(interp, canvas, bitmap)
* it shouldn't matter here.
*/
- XGetGeometry(Tk_Display(Tk_CanvasTkwin(canvas)), bitmap, &dummyRoot,
+ 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, (char *) NULL);
- if (Tk_CanvasPsBitmap(interp, (Tk_Canvas) canvasPtr, bitmap, 0, 0,
+ if (Tk_PostscriptBitmap(interp, tkwin, psInfo, bitmap, 0, 0,
width, height) != TCL_OK) {
return TCL_ERROR;
}
@@ -1244,9 +1258,9 @@ Tk_CanvasPsStipple(interp, canvas, bitmap)
/*
*--------------------------------------------------------------
*
- * Tk_CanvasPsY --
+ * Tk_PostscriptY --
*
- * Given a y-coordinate in canvas coordinates, this procedure
+ * Given a y-coordinate in local coordinates, this procedure
* returns a y-coordinate to use for Postscript output.
*
* Results:
@@ -1260,12 +1274,11 @@ Tk_CanvasPsStipple(interp, canvas, bitmap)
*/
double
-Tk_CanvasPsY(canvas, y)
- Tk_Canvas canvas; /* Token for canvas on whose behalf
- * Postscript is being generated. */
+Tk_PostscriptY(y, psInfo)
double y; /* Y-coordinate in canvas coords. */
+ Tk_PostscriptInfo psInfo; /* Postscript info */
{
- TkPostscriptInfo *psInfoPtr = ((TkCanvas *) canvas)->psInfoPtr;
+ TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo;
return psInfoPtr->y2 - y;
}
@@ -1273,7 +1286,7 @@ Tk_CanvasPsY(canvas, y)
/*
*--------------------------------------------------------------
*
- * Tk_CanvasPsPath --
+ * Tk_PostscriptPath --
*
* Given an array of points for a path, generate Postscript
* commands to create the path.
@@ -1288,29 +1301,28 @@ Tk_CanvasPsY(canvas, y)
*/
void
-Tk_CanvasPsPath(interp, canvas, coordPtr, numPoints)
- Tcl_Interp *interp; /* Put generated Postscript in this
- * interpreter's result field. */
- Tk_Canvas canvas; /* Canvas on whose behalf Postscript
+Tk_PostscriptPath(interp, psInfo, coordPtr, numPoints)
+ Tcl_Interp *interp;
+ Tk_PostscriptInfo psInfo; /* Canvas on whose behalf Postscript
* is being generated. */
double *coordPtr; /* Pointer to first in array of
* 2*numPoints coordinates giving
* points for path. */
int numPoints; /* Number of points at *coordPtr. */
{
- TkPostscriptInfo *psInfoPtr = ((TkCanvas *) canvas)->psInfoPtr;
+ TkPostscriptInfo *psInfoPtr = (TkPostscriptInfo *) psInfo;
char buffer[200];
if (psInfoPtr->prepass) {
return;
}
sprintf(buffer, "%.15g %.15g moveto\n", coordPtr[0],
- Tk_CanvasPsY(canvas, coordPtr[1]));
+ Tk_PostscriptY(coordPtr[1], psInfo));
Tcl_AppendResult(interp, buffer, (char *) NULL);
for (numPoints--, coordPtr += 2; numPoints > 0;
numPoints--, coordPtr += 2) {
sprintf(buffer, "%.15g %.15g lineto\n", coordPtr[0],
- Tk_CanvasPsY(canvas, coordPtr[1]));
+ Tk_PostscriptY(coordPtr[1], psInfo));
Tcl_AppendResult(interp, buffer, (char *) NULL);
}
}
@@ -1385,3 +1397,287 @@ GetPostscriptPoints(interp, string, doublePtr)
*doublePtr = d;
return TCL_OK;
}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkImageGetColor --
+ *
+ * This procedure converts a pixel value to three floating
+ * point numbers, representing the amount of red, green, and
+ * blue in that pixel on the screen. It makes use of colormap
+ * data passed as an argument, and should work for all Visual
+ * types.
+ *
+ * Results:
+ * Returns red, green, and blue color values in the range
+ * 0 to 1. There are no error returns.
+ *
+ * Side effects:
+ * None.
+ *
+ *--------------------------------------------------------------
+ */
+
+static void
+TkImageGetColor(cdata, pixel, red, green, blue)
+ TkColormapData *cdata; /* Colormap data */
+ unsigned long pixel; /* Pixel value to look up */
+ double *red, *green, *blue; /* Color data to return */
+{
+ if (cdata->separated) {
+ int r = (pixel & cdata->red_mask) >> cdata->red_shift;
+ int g = (pixel & cdata->green_mask) >> cdata->green_shift;
+ int b = (pixel & cdata->blue_mask) >> cdata->blue_shift;
+ *red = cdata->colors[r].red / 65535.0;
+ *green = cdata->colors[g].green / 65535.0;
+ *blue = cdata->colors[b].blue / 65535.0;
+ } else {
+ *red = cdata->colors[pixel].red / 65535.0;
+ *green = cdata->colors[pixel].green / 65535.0;
+ *blue = cdata->colors[pixel].blue / 65535.0;
+ }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkPostscriptImage --
+ *
+ * This procedure is called to output the contents of an
+ * image in Postscript, using a format appropriate for the
+ * current color mode (i.e. one bit per pixel in monochrome,
+ * one byte per pixel in gray, and three bytes per pixel in
+ * color).
+ *
+ * Results:
+ * Returns a standard Tcl return value. If an error occurs
+ * then an error message will be left in interp->result.
+ * If no error occurs, then additional Postscript will be
+ * appended to interp->result.
+ *
+ * Side effects:
+ * None.
+ *
+ *--------------------------------------------------------------
+ */
+
+int
+TkPostscriptImage(interp, tkwin, psInfo, ximage, x, y, width, height)
+ Tcl_Interp *interp;
+ Tk_Window tkwin;
+ Tk_PostscriptInfo psInfo; /* postscript info */
+ XImage *ximage; /* Image to draw */
+ int x, y; /* First pixel to output */
+ int width, 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 level = psInfoPtr->colorLevel;
+ Colormap cmap;
+ int i, depth, ncolors;
+ Visual *visual;
+ TkColormapData cdata;
+
+ if (psInfoPtr->prepass) {
+ return TCL_OK;
+ }
+
+ cmap = Tk_Colormap(tkwin);
+ depth = Tk_Depth(tkwin);
+ visual = Tk_Visual(tkwin);
+
+ /*
+ * Obtain information about the colormap, ie the mapping between
+ * pixel values and RGB values. The code below should work
+ * for all Visual types.
+ */
+
+ ncolors = visual->map_entries;
+ cdata.colors = (XColor *) ckalloc(sizeof(XColor) * ncolors);
+ cdata.ncolors = ncolors;
+
+ if (visual->class == DirectColor || visual->class == TrueColor) {
+ cdata.separated = 1;
+ cdata.red_mask = visual->red_mask;
+ cdata.green_mask = visual->green_mask;
+ cdata.blue_mask = visual->blue_mask;
+ cdata.red_shift = 0;
+ cdata.green_shift = 0;
+ cdata.blue_shift = 0;
+ while ((0x0001 & (cdata.red_mask >> cdata.red_shift)) == 0)
+ cdata.red_shift ++;
+ while ((0x0001 & (cdata.green_mask >> cdata.green_shift)) == 0)
+ cdata.green_shift ++;
+ while ((0x0001 & (cdata.blue_mask >> cdata.blue_shift)) == 0)
+ cdata.blue_shift ++;
+ for (i = 0; i < ncolors; i ++)
+ cdata.colors[i].pixel =
+ ((i << cdata.red_shift) & cdata.red_mask) |
+ ((i << cdata.green_shift) & cdata.green_mask) |
+ ((i << cdata.blue_shift) & cdata.blue_mask);
+ } else {
+ cdata.separated=0;
+ for (i = 0; i < ncolors; i ++)
+ cdata.colors[i].pixel = i;
+ }
+ if (visual->class == StaticGray || visual->class == GrayScale)
+ cdata.color = 0;
+ else
+ cdata.color = 1;
+
+
+ XQueryColors(Tk_Display(tkwin), cmap, cdata.colors, ncolors);
+
+ /*
+ * Figure out which color level to use (possibly lower than the
+ * one specified by the user). For example, if the user specifies
+ * color with monochrome screen, use gray or monochrome mode instead.
+ */
+
+ if (!cdata.color && level == 2) {
+ level = 1;
+ }
+
+ if (!cdata.color && cdata.ncolors == 2) {
+ level = 0;
+ }
+
+ /*
+ * Check that at least one row of the image can be represented
+ * with a string less than 64 KB long (this is a limit in the
+ * Postscript interpreter).
+ */
+
+ 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;
+ }
+
+ if (bytesPerLine > 60000) {
+ Tcl_ResetResult(interp);
+ sprintf(buffer,
+ "Can't generate Postscript for images more than %d pixels wide",
+ maxWidth);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ ckfree((char *) cdata.colors);
+ return TCL_ERROR;
+ }
+
+ maxRows = 60000 / bytesPerLine;
+
+ for (band = height-1; band >= 0; band -= maxRows) {
+ int rows = (band >= maxRows) ? maxRows : band + 1;
+ int lineLen = 0;
+ switch (level) {
+ case 0:
+ sprintf(buffer, "%d %d 1 matrix {\n<", width, rows);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ break;
+ case 1:
+ sprintf(buffer, "%d %d 8 matrix {\n<", width, rows);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ break;
+ case 2:
+ sprintf(buffer, "%d %d 8 matrix {\n<",
+ width, rows);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ break;
+ }
+ for (yy = band; yy > band - rows; yy--) {
+ switch (level) {
+ case 0: {
+ /*
+ * Generate data for image in monochrome mode.
+ * No attempt at dithering is made--instead, just
+ * set a threshold.
+ */
+ unsigned char mask=0x80;
+ unsigned char data=0x00;
+ for (xx = x; xx< x+width; xx++) {
+ TkImageGetColor(&cdata, XGetPixel(ximage, xx, yy),
+ &red, &green, &blue);
+ if (0.30 * red + 0.59 * green + 0.11 * blue > 0.5)
+ data |= mask;
+ mask >>= 1;
+ if (mask == 0) {
+ sprintf(buffer, "%02X", data);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ lineLen += 2;
+ if (lineLen > 60) {
+ lineLen = 0;
+ Tcl_AppendResult(interp, "\n", (char *) NULL);
+ }
+ mask=0x80;
+ data=0x00;
+ }
+ }
+ if ((width % 8) != 0) {
+ sprintf(buffer, "%02X", data);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ mask=0x80;
+ data=0x00;
+ }
+ break;
+ }
+ case 1: {
+ /*
+ * Generate data in gray mode--in this case, take a
+ * weighted sum of the red, green, and blue values.
+ */
+ 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 *
+ (0.30 * red +
+ 0.59 * green +
+ 0.11 * blue)));
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ lineLen += 2;
+ if (lineLen > 60) {
+ lineLen = 0;
+ Tcl_AppendResult(interp, "\n", (char *) NULL);
+ }
+ }
+ break;
+ }
+ case 2: {
+ /*
+ * Finally, color mode. Here, just output the red, green,
+ * and blue values directly.
+ */
+ for (xx = x; xx < x+width; xx++) {
+ TkImageGetColor(&cdata, XGetPixel(ximage, xx, yy),
+ &red, &green, &blue);
+ sprintf(buffer, "%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, (char *) NULL);
+ lineLen += 6;
+ if (lineLen > 60) {
+ lineLen = 0;
+ Tcl_AppendResult(interp, "\n", (char *) NULL);
+ }
+ }
+ break;
+ }
+ }
+ }
+ switch (level) {
+ case 0: sprintf(buffer, ">\n} image\n"); break;
+ case 1: sprintf(buffer, ">\n} image\n"); break;
+ case 2: sprintf(buffer, ">\n} false 3 colorimage\n"); break;
+ }
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ sprintf(buffer, "0 %d translate\n", rows);
+ Tcl_AppendResult(interp, buffer, (char *) NULL);
+ }
+ ckfree((char *) cdata.colors);
+ return TCL_OK;
+}