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authora_kovalenko <a_kovalenko>2002-06-25 16:27:43 (GMT)
committera_kovalenko <a_kovalenko>2002-06-25 16:27:43 (GMT)
commit74607ec0cc8a43fcd4eee20367551cfe4c9b6be3 (patch)
tree54777509221f3836a6476f53f585d0fd218a540a
parent38552c3a2aca52950e9aab3fae0045c6ad03c17e (diff)
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Applied patch #546910 -- international postscript output
-rw-r--r--ChangeLog13
-rw-r--r--generic/tkCanvPs.c335
-rw-r--r--generic/tkFont.c64
-rw-r--r--library/mkpsenc.tcl1368
-rw-r--r--library/tclIndex1
-rw-r--r--tests/canvText.test8
6 files changed, 1443 insertions, 346 deletions
diff --git a/ChangeLog b/ChangeLog
index 6f63408..df565ec 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2002-06-25 Anton Kovalenko <a_kovalenko@users.sourceforge.net>
+
+ * library/mkpsenc.tcl: (added) utilities to generate
+ Postscript prolog for current system encoding.
+ * generic/tkCanvPs.c (TkCanvPostscriptCmd): now
+ uses mkpsenc.tcl to generate Postscript prolog.
+ * generic/tkFont.c (TkTextLayoutToPostscript): modified
+ according to patch #546910. Now outputs system-encoded
+ characters (for unibyte) or Adobe glyph names (for
+ multibyte or outside-locale).
+ * tests/canvText.test (canvText-17.1): updated this test
+ to expect the new behavior of canvas postscript.
+
2002-06-25 Reinhard Max <max@suse.de>
* unix/configure: Replaced ${exec_prefix}/lib
diff --git a/generic/tkCanvPs.c b/generic/tkCanvPs.c
index ea6ec2a..47aa841 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 1.8 2002/01/25 21:09:36 dgp Exp $
+ * RCS: @(#) $Id: tkCanvPs.c,v 1.9 2002/06/25 16:27:43 a_kovalenko Exp $
*/
#include "tkInt.h"
@@ -116,320 +116,6 @@ static Tk_ConfigSpec configSpecs[] = {
};
/*
- * The prolog data. Generated by str2c from prolog.ps
- * This was split in small chunks by str2c because
- * some C compiler have limitations on the size of static strings.
- * (str2c is a small tcl script in tcl's tool directory (source release))
- */
-static CONST char * CONST prolog[]= {
- /* Start of part 1 (2000 characters) */
- "%%BeginProlog\n\
-50 dict begin\n\
-\n\
-% This is a standard prolog for Postscript generated by Tk's canvas\n\
-% widget.\n\
-% RCS: @(#) $Id: tkCanvPs.c,v 1.8 2002/01/25 21:09:36 dgp 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\
-% explained on p. 716 of the Postscript manual (Section H.2.7,\n\
-% \"Initializing Variables,\" in the section on Encapsulated Postscript).\n\
-\n\
-/baseline 0 def\n\
-/stipimage 0 def\n\
-/height 0 def\n\
-/justify 0 def\n\
-/lineLength 0 def\n\
-/spacing 0 def\n\
-/stipple 0 def\n\
-/strings 0 def\n\
-/xoffset 0 def\n\
-/yoffset 0 def\n\
-/tmpstip null def\n\
-\n\
-% Define the array ISOLatin1Encoding (which specifies how characters are\n\
-% encoded for ISO-8859-1 fonts), if it isn't already present (Postscript\n\
-% level 2 is supposed to define it, but level 1 doesn't).\n\
-\n\
-systemdict /ISOLatin1Encoding known not {\n\
- /ISOLatin1Encoding [\n\
- /space /space /space /space /space /space /space /space\n\
- /space /space /space /space /space /space /space /space\n\
- /space /space /space /space /space /space /space /space\n\
- /space /space /space /space /space /space /space /space\n\
- /space /exclam /quotedbl /numbersign /dollar /percent /ampersand\n\
- /quoteright\n\
- /parenleft /parenright /asterisk /plus /comma /minus /period /slash\n\
- /zero /one /two /three /four /five /six /seven\n\
- /eight /nine /colon /semicolon /less /equal /greater /question\n\
- /at /A /B /C /D /E /F /G\n\
- /H /I /J /K /L /M /N /O\n\
- /P /Q /R /S /T /U /V /W\n\
- /X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore\n\
- /quoteleft /a /b /c /d /e /f /g\n\
- /h /i /j /k /l /m /n /o\n\
- /p /q /r /s /t /u /v /w\n\
- /x /y /z /braceleft /bar /braceright /asciitilde /space\n\
- /space /space /space /space /space /space /space /space\n\
- /space /space /space /space /space /space /space /space\n\
- /dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent\n\
- /dieresis /space /ring /cedilla /space /hungarumlaut /ogonek /caron\n\
- /space /exclamdown /cent /sterling /currency /yen /brokenbar /section\n\
- /dieresis /copyright /ordfem",
- /* End of part 1 */
-
- /* Start of part 2 (2000 characters) */
- "inine /guillemotleft /logicalnot /hyphen\n\
- /registered /macron\n\
- /degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph\n\
- /periodcentered\n\
- /cedillar /onesuperior /ordmasculine /guillemotright /onequarter\n\
- /onehalf /threequarters /questiondown\n\
- /Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla\n\
- /Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex\n\
- /Idieresis\n\
- /Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply\n\
- /Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn\n\
- /germandbls\n\
- /agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla\n\
- /egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex\n\
- /idieresis\n\
- /eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide\n\
- /oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn\n\
- /ydieresis\n\
- ] def\n\
-} if\n\
-\n\
-% font ISOEncode font\n\
-% This procedure changes the encoding of a font from the default\n\
-% Postscript encoding to ISOLatin1. It's typically invoked just\n\
-% before invoking \"setfont\". The body of this procedure comes from\n\
-% Section 5.6.1 of the Postscript book.\n\
-\n\
-/ISOEncode {\n\
- dup length dict begin\n\
- {1 index /FID ne {def} {pop pop} ifelse} forall\n\
- /Encoding ISOLatin1Encoding def\n\
- currentdict\n\
- end\n\
-\n\
- % I'm not sure why it's necessary to use \"definefont\" on this new\n\
- % font, but it seems to be important; just use the name \"Temporary\"\n\
- % for the font.\n\
-\n\
- /Temporary exch definefont\n\
-} bind def\n\
-\n\
-% StrokeClip\n\
-%\n\
-% This procedure converts the current path into a clip area under\n\
-% the assumption of stroking. It's a bit tricky because some Postscript\n\
-% interpreters get errors during strokepath for dashed lines. If\n\
-% this happens then turn off dashes and try again.\n\
-\n\
-/StrokeClip {\n\
- {strokepath} stopped {\n\
- (This Postscript printer gets limitcheck overflows when) =\n\
- (stippling dashed lines; lines will be printed solid instead.) =\n\
- [] 0 setdash strokepath} if\n\
- clip\n\
-} bind def\n\
-\n\
-% d",
- /* End of part 2 */
-
- /* Start of part 3 (2000 characters) */
- "esiredSize EvenPixels closestSize\n\
-%\n\
-% The procedure below is used for stippling. Given the optimal size\n\
-% of a dot in a stipple pattern in the current user coordinate system,\n\
-% compute the closest size that is an exact multiple of the device's\n\
-% pixel size. This allows stipple patterns to be displayed without\n\
-% aliasing effects.\n\
-\n\
-/EvenPixels {\n\
- % Compute exact number of device pixels per stipple dot.\n\
- dup 0 matrix currentmatrix dtransform\n\
- dup mul exch dup mul add sqrt\n\
-\n\
- % Round to an integer, make sure the number is at least 1, and compute\n\
- % user coord distance corresponding to this.\n\
- dup round dup 1 lt {pop 1} if\n\
- exch div mul\n\
-} bind def\n\
-\n\
-% width height string StippleFill --\n\
-%\n\
-% Given a path already set up and a clipping region generated from\n\
-% it, this procedure will fill the clipping region with a stipple\n\
-% pattern. \"String\" contains a proper image description of the\n\
-% stipple pattern and \"width\" and \"height\" give its dimensions. Each\n\
-% stipple dot is assumed to be about one unit across in the current\n\
-% user coordinate system. This procedure trashes the graphics state.\n\
-\n\
-/StippleFill {\n\
- % The following code is needed to work around a NeWSprint bug.\n\
-\n\
- /tmpstip 1 index def\n\
-\n\
- % Change the scaling so that one user unit in user coordinates\n\
- % corresponds to the size of one stipple dot.\n\
- 1 EvenPixels dup scale\n\
-\n\
- % Compute the bounding box occupied by the path (which is now\n\
- % the clipping region), and round the lower coordinates down\n\
- % to the nearest starting point for the stipple pattern. Be\n\
- % careful about negative numbers, since the rounding works\n\
- % differently on them.\n\
-\n\
- pathbbox\n\
- 4 2 roll\n\
- 5 index div dup 0 lt {1 sub} if cvi 5 index mul 4 1 roll\n\
- 6 index div dup 0 lt {1 sub} if cvi 6 index mul 3 2 roll\n\
-\n\
- % Stack now: width height string y1 y2 x1 x2\n\
- % Below is a doubly-nested for loop to iterate across this area\n\
- % in units of the stipple pattern size, going up columns then\n\
- % acr",
- /* End of part 3 */
-
- /* Start of part 4 (2000 characters) */
- "oss rows, blasting out a stipple-pattern-sized rectangle at\n\
- % each position\n\
-\n\
- 6 index exch {\n\
- 2 index 5 index 3 index {\n\
- % Stack now: width height string y1 y2 x y\n\
-\n\
- gsave\n\
- 1 index exch translate\n\
- 5 index 5 index true matrix tmpstip imagemask\n\
- grestore\n\
- } for\n\
- pop\n\
- } for\n\
- pop pop pop pop pop\n\
-} bind def\n\
-\n\
-% -- AdjustColor --\n\
-% Given a color value already set for output by the caller, adjusts\n\
-% that value to a grayscale or mono value if requested by the CL\n\
-% variable.\n\
-\n\
-/AdjustColor {\n\
- CL 2 lt {\n\
- currentgray\n\
- CL 0 eq {\n\
- .5 lt {0} {1} ifelse\n\
- } if\n\
- setgray\n\
- } if\n\
-} bind def\n\
-\n\
-% x y strings spacing xoffset yoffset justify stipple DrawText --\n\
-% This procedure does all of the real work of drawing text. The\n\
-% color and font must already have been set by the caller, and the\n\
-% following arguments must be on the stack:\n\
-%\n\
-% x, y - Coordinates at which to draw text.\n\
-% strings - An array of strings, one for each line of the text item,\n\
-% in order from top to bottom.\n\
-% spacing - Spacing between lines.\n\
-% xoffset - Horizontal offset for text bbox relative to x and y: 0 for\n\
-% nw/w/sw anchor, -0.5 for n/center/s, and -1.0 for ne/e/se.\n\
-% yoffset - Vertical offset for text bbox relative to x and y: 0 for\n\
-% nw/n/ne anchor, +0.5 for w/center/e, and +1.0 for sw/s/se.\n\
-% justify - 0 for left justification, 0.5 for center, 1 for right justify.\n\
-% stipple - Boolean value indicating whether or not text is to be\n\
-% drawn in stippled fashion. If text is stippled,\n\
-% procedure StippleText must have been defined to call\n\
-% StippleFill in the right way.\n\
-%\n\
-% Also, when this procedure is invoked, the color and font must already\n\
-% have been set for the text.\n\
-\n\
-/DrawText {\n\
- /stipple exch def\n\
- /justify exch def\n\
- /yoffset exch def\n\
- /xoffset exch def\n\
- /spacing exch def\n\
- /strings exch def\n\
-\n\
- % First scan through all of the text to find the widest line.\n\
-\n\
- /lineLength 0 def\n\
- strings {\n\
- stringwidth pop\n\
- dup lineLength gt {/lineLength exch def}",
- /* End of part 4 */
-
- /* Start of part 5 (1546 characters) */
- " {pop} ifelse\n\
- newpath\n\
- } forall\n\
-\n\
- % Compute the baseline offset and the actual font height.\n\
-\n\
- 0 0 moveto (TXygqPZ) false charpath\n\
- pathbbox dup /baseline exch def\n\
- exch pop exch sub /height exch def pop\n\
- newpath\n\
-\n\
- % Translate coordinates first so that the origin is at the upper-left\n\
- % corner of the text's bounding box. Remember that x and y for\n\
- % positioning are still on the stack.\n\
-\n\
- translate\n\
- lineLength xoffset mul\n\
- strings length 1 sub spacing mul height add yoffset mul translate\n\
-\n\
- % Now use the baseline and justification information to translate so\n\
- % that the origin is at the baseline and positioning point for the\n\
- % first line of text.\n\
-\n\
- justify lineLength mul baseline neg translate\n\
-\n\
- % Iterate over each of the lines to output it. For each line,\n\
- % compute its width again so it can be properly justified, then\n\
- % display it.\n\
-\n\
- strings {\n\
- dup stringwidth pop\n\
- justify neg mul 0 moveto\n\
- stipple {\n\
-\n\
- % The text is stippled, so turn it into a path and print\n\
- % by calling StippledText, which in turn calls StippleFill.\n\
- % Unfortunately, many Postscript interpreters will get\n\
- % overflow errors if we try to do the whole string at\n\
- % once, so do it a character at a time.\n\
-\n\
- gsave\n\
- /char (X) def\n\
- {\n\
- char 0 3 -1 roll put\n\
- currentpoint\n\
- gsave\n\
- char true charpath clip StippleText\n\
- grestore\n\
- char stringwidth translate\n\
- moveto\n\
- } forall\n\
- grestore\n\
- } {show} ifelse\n\
- 0 spacing neg translate\n\
- } forall\n\
-} bind def\n\
-\n\
-%%EndProlog\n\
-",
- /* End of part 5 */
-
- NULL /* End of data marker */
-};
-
-/*
* Forward declarations for procedures defined later in this file:
*/
@@ -485,7 +171,7 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
Tcl_HashSearch search;
Tcl_HashEntry *hPtr;
Tcl_DString buffer;
- CONST char * CONST *chunk;
+ char psenccmd[]="::tk::ensure_psenc_is_loaded";
/*
*----------------------------------------------------------------
@@ -493,7 +179,10 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
* then process all the arguments to fill the data structure in.
*----------------------------------------------------------------
*/
-
+ result = Tcl_EvalEx(interp,psenccmd,-1,TCL_EVAL_GLOBAL);
+ if (result != TCL_OK) {
+ return result;
+ }
oldInfoPtr = canvasPtr->psInfo;
canvasPtr->psInfo = (Tk_PostscriptInfo) &psInfo;
psInfo.x = canvasPtr->xOrigin;
@@ -718,8 +407,8 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
*/
if (psInfo.prolog) {
- Tcl_AppendResult(interp, "%!PS-Adobe-3.0 EPSF-3.0\n",
- "%%Creator: Tk Canvas Widget\n", (char *) NULL);
+ 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. */
@@ -769,14 +458,12 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv)
/*
* Insert the prolog
*/
- for (chunk=prolog; *chunk; chunk++) {
- Tcl_AppendResult(interp, *chunk, (char *) NULL);
- }
-
+ Tcl_AppendResult(interp, Tcl_GetVar(interp,"::tk::ps_preamable",TCL_GLOBAL_ONLY), (char *) NULL);
if (psInfo.chan != NULL) {
- Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1);
+ Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1);
Tcl_ResetResult(canvasPtr->interp);
}
+
/*
*-----------------------------------------------------------
diff --git a/generic/tkFont.c b/generic/tkFont.c
index 5ab4e46..90914d2 100644
--- a/generic/tkFont.c
+++ b/generic/tkFont.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: tkFont.c,v 1.14 2002/06/22 09:13:37 hobbs Exp $
+ * RCS: @(#) $Id: tkFont.c,v 1.15 2002/06/25 16:27:43 a_kovalenko Exp $
*/
#include "tkPort.h"
@@ -2756,22 +2756,29 @@ Tk_TextLayoutToPostscript(interp, layout)
Tk_TextLayout layout; /* The layout to be rendered. */
{
#define MAXUSE 128
- char buf[MAXUSE+10];
+ char buf[MAXUSE+30];
LayoutChunk *chunkPtr;
int i, j, used, c, baseline;
Tcl_UniChar ch;
- CONST char *p;
+ CONST char *p, *last_p,*glyphname;
TextLayout *layoutPtr;
+ char uindex[5]="\0\0\0\0";
+ char one_char[5];
+ int charsize;
+ int bytecount=0;
layoutPtr = (TextLayout *) layout;
chunkPtr = layoutPtr->chunks;
baseline = chunkPtr->y;
used = 0;
+ buf[used++] = '[';
buf[used++] = '(';
for (i = 0; i < layoutPtr->numChunks; i++) {
if (baseline != chunkPtr->y) {
buf[used++] = ')';
+ buf[used++] = ']';
buf[used++] = '\n';
+ buf[used++] = '[';
buf[used++] = '(';
baseline = chunkPtr->y;
}
@@ -2788,23 +2795,43 @@ Tk_TextLayoutToPostscript(interp, layout)
* data and display the lower byte. Eventually this should
* be revised to handle international postscript fonts.
*/
+ last_p=p;
+ p +=(charsize= Tcl_UtfToUniChar(p,&ch));
+ Tcl_UtfToExternal(interp,NULL,last_p,charsize,0,NULL,one_char,4,
+ NULL,&bytecount,NULL);
+ if (bytecount == 1) {
+ c = UCHAR(one_char[0]);
+ /* c = UCHAR( ch & 0xFF) */;
+ if ((c == '(') || (c == ')') || (c == '\\') || (c < 0x20)
+ || (c >= UCHAR(0x7f))) {
+ /*
+ * Tricky point: the "03" is necessary in the sprintf
+ * below, so that a full three digits of octal are
+ * always generated. Without the "03", a number
+ * following this sequence could be interpreted by
+ * Postscript as part of this sequence.
+ */
- p += Tcl_UtfToUniChar(p, &ch);
- c = UCHAR(ch & 0xff);
- if ((c == '(') || (c == ')') || (c == '\\') || (c < 0x20)
- || (c >= UCHAR(0x7f))) {
- /*
- * Tricky point: the "03" is necessary in the sprintf
- * below, so that a full three digits of octal are
- * always generated. Without the "03", a number
- * following this sequence could be interpreted by
- * Postscript as part of this sequence.
- */
-
- sprintf(buf + used, "\\%03o", c);
- used += 4;
+ sprintf(buf + used, "\\%03o", c);
+ used += 4;
+ } else {
+ buf[used++] = c;
+ }
} else {
- buf[used++] = c;
+ /* This character doesn't belong to system character set.
+ * So, we must use full glyph name */
+ sprintf(uindex,"%04X",ch); /* endianness? */
+ if ((glyphname = Tcl_GetVar2( interp , "::tk::psglyphs",uindex,0))) {
+ if (used > 0 && buf [used-1] == '(')
+ --used;
+ else
+ buf[used++] = ')';
+ buf[used++] = '/';
+ while( *glyphname )
+ buf[used++] = *glyphname++ ;
+ buf[used++] = '(';
+ }
+
}
if (used >= MAXUSE) {
buf[used] = '\0';
@@ -2826,6 +2853,7 @@ Tk_TextLayoutToPostscript(interp, layout)
chunkPtr++;
}
buf[used++] = ')';
+ buf[used++] = ']';
buf[used++] = '\n';
buf[used] = '\0';
Tcl_AppendResult(interp, buf, (char *) NULL);
diff --git a/library/mkpsenc.tcl b/library/mkpsenc.tcl
new file mode 100644
index 0000000..b8603ea
--- /dev/null
+++ b/library/mkpsenc.tcl
@@ -0,0 +1,1368 @@
+# mkpsenc.tcl --
+#
+# Creates Postscript encoding vector for given encoding
+#
+
+proc ::tk::CreatePostscriptEncoding {encoding} {
+ # now check for known. Even if it is known, it can be other
+ # than we need. GhostScript seems to be happy with such approach
+ set result "/CurrentEncoding \[\n"
+ for {set i 0} {$i<256} {incr i 8} {
+ for {set j 0} {$j<8} {incr j} {
+ set hexcode [format "%04X" [scan [encoding convertfrom\
+ $encoding [format "%c" [expr $i+$j] ]] %c]]
+ if [info exists ::tk::psglyphs($hexcode)] {
+ append result "/$::tk::psglyphs($hexcode)"
+ } else {
+ append result "/space"
+ }
+ }
+ append result "\n"
+ }
+ append result "\] def\n"
+ return $result
+}
+
+# List of adobe glyph names. Converted from glyphlist.txt, downloaded
+# from Adobe
+
+namespace eval ::tk {
+array set psglyphs {
+ 0020 space
+ 0021 exclam
+ 0022 quotedbl
+ 0023 numbersign
+ 0024 dollar
+ 0025 percent
+ 0026 ampersand
+ 0027 quotesingle
+ 0028 parenleft
+ 0029 parenright
+ 002A asterisk
+ 002B plus
+ 002C comma
+ 002D hyphen
+ 002E period
+ 002F slash
+ 0030 zero
+ 0031 one
+ 0032 two
+ 0033 three
+ 0034 four
+ 0035 five
+ 0036 six
+ 0037 seven
+ 0038 eight
+ 0039 nine
+ 003A colon
+ 003B semicolon
+ 003C less
+ 003D equal
+ 003E greater
+ 003F question
+ 0040 at
+ 0041 A
+ 0042 B
+ 0043 C
+ 0044 D
+ 0045 E
+ 0046 F
+ 0047 G
+ 0048 H
+ 0049 I
+ 004A J
+ 004B K
+ 004C L
+ 004D M
+ 004E N
+ 004F O
+ 0050 P
+ 0051 Q
+ 0052 R
+ 0053 S
+ 0054 T
+ 0055 U
+ 0056 V
+ 0057 W
+ 0058 X
+ 0059 Y
+ 005A Z
+ 005B bracketleft
+ 005C backslash
+ 005D bracketright
+ 005E asciicircum
+ 005F underscore
+ 0060 grave
+ 0061 a
+ 0062 b
+ 0063 c
+ 0064 d
+ 0065 e
+ 0066 f
+ 0067 g
+ 0068 h
+ 0069 i
+ 006A j
+ 006B k
+ 006C l
+ 006D m
+ 006E n
+ 006F o
+ 0070 p
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+ F8F2 braceleftmid
+ F8F3 braceleftbt
+ F8F4 braceex
+ F8F5 integralex
+ F8F6 parenrighttp
+ F8F7 parenrightex
+ F8F8 parenrightbt
+ F8F9 bracketrighttp
+ F8FA bracketrightex
+ F8FB bracketrightbt
+ F8FC bracerighttp
+ F8FD bracerightmid
+ F8FE bracerightbt
+ FB00 ff
+ FB01 fi
+ FB02 fl
+ FB03 ffi
+ FB04 ffl
+ FB1F afii57705
+ FB2A afii57694
+ FB2B afii57695
+ FB35 afii57723
+ FB4B afii57700
+}
+
+# precalculate entire prolog when this file is loaded
+# (to speed things up)
+set ps_preamable "%%BeginProlog\n"
+append ps_preamable [CreatePostscriptEncoding [encoding system]]
+append ps_preamable {
+50 dict begin
+% This is a standard prolog for Postscript generated by Tk's canvas
+% widget.
+% RCS: @(#) $Id: mkpsenc.tcl,v 1.1 2002/06/25 16:27:43 a_kovalenko Exp $
+
+% The definitions below just define all of the variables used in
+% any of the procedures here. This is needed for obscure reasons
+% explained on p. 716 of the Postscript manual (Section H.2.7,
+% "Initializing Variables," in the section on Encapsulated Postscript).
+
+/baseline 0 def
+/stipimage 0 def
+/height 0 def
+/justify 0 def
+/lineLength 0 def
+/spacing 0 def
+/stipple 0 def
+/strings 0 def
+/xoffset 0 def
+/yoffset 0 def
+/tmpstip null def
+
+
+/cstringshow {
+ {
+ dup type /stringtype eq
+ { show } { glyphshow }
+ ifelse
+ }
+ forall
+} bind def
+
+
+
+/cstringwidth {
+ 0 exch 0 exch
+ {
+ dup type /stringtype eq
+ { stringwidth } {
+ currentfont /Encoding get exch 1 exch put (\001) stringwidth
+ }
+ ifelse
+ exch 3 1 roll add 3 1 roll add exch
+ }
+ forall
+} bind def
+
+% font ISOEncode font
+% This procedure changes the encoding of a font from the default
+% Postscript encoding to current system encoding. It's typically invoked just
+% before invoking "setfont". The body of this procedure comes from
+% Section 5.6.1 of the Postscript book.
+
+/ISOEncode {
+ dup length dict begin
+ {1 index /FID ne {def} {pop pop} ifelse} forall
+ /Encoding CurrentEncoding def
+ currentdict
+ end
+
+ % I'm not sure why it's necessary to use "definefont" on this new
+ % font, but it seems to be important; just use the name "Temporary"
+ % for the font.
+
+ /Temporary exch definefont
+} bind def
+
+% StrokeClip
+%
+% This procedure converts the current path into a clip area under
+% the assumption of stroking. It's a bit tricky because some Postscript
+% interpreters get errors during strokepath for dashed lines. If
+% this happens then turn off dashes and try again.
+
+/StrokeClip {
+ {strokepath} stopped {
+ (This Postscript printer gets limitcheck overflows when) =
+ (stippling dashed lines; lines will be printed solid instead.) =
+ [] 0 setdash strokepath} if
+ clip
+} bind def
+
+% desiredSize EvenPixels closestSize
+%
+% The procedure below is used for stippling. Given the optimal size
+% of a dot in a stipple pattern in the current user coordinate system,
+% compute the closest size that is an exact multiple of the device's
+% pixel size. This allows stipple patterns to be displayed without
+% aliasing effects.
+
+/EvenPixels {
+ % Compute exact number of device pixels per stipple dot.
+ dup 0 matrix currentmatrix dtransform
+ dup mul exch dup mul add sqrt
+
+ % Round to an integer, make sure the number is at least 1, and compute
+ % user coord distance corresponding to this.
+ dup round dup 1 lt {pop 1} if
+ exch div mul
+} bind def
+
+% width height string StippleFill --
+%
+% Given a path already set up and a clipping region generated from
+% it, this procedure will fill the clipping region with a stipple
+% pattern. "String" contains a proper image description of the
+% stipple pattern and "width" and "height" give its dimensions. Each
+% stipple dot is assumed to be about one unit across in the current
+% user coordinate system. This procedure trashes the graphics state.
+
+/StippleFill {
+ % The following code is needed to work around a NeWSprint bug.
+
+ /tmpstip 1 index def
+
+ % Change the scaling so that one user unit in user coordinates
+ % corresponds to the size of one stipple dot.
+ 1 EvenPixels dup scale
+
+ % Compute the bounding box occupied by the path (which is now
+ % the clipping region), and round the lower coordinates down
+ % to the nearest starting point for the stipple pattern. Be
+ % careful about negative numbers, since the rounding works
+ % differently on them.
+
+ pathbbox
+ 4 2 roll
+ 5 index div dup 0 lt {1 sub} if cvi 5 index mul 4 1 roll
+ 6 index div dup 0 lt {1 sub} if cvi 6 index mul 3 2 roll
+
+ % Stack now: width height string y1 y2 x1 x2
+ % Below is a doubly-nested for loop to iterate across this area
+ % in units of the stipple pattern size, going up columns then
+ % across rows, blasting out a stipple-pattern-sized rectangle at
+ % each position
+
+ 6 index exch {
+ 2 index 5 index 3 index {
+ % Stack now: width height string y1 y2 x y
+
+ gsave
+ 1 index exch translate
+ 5 index 5 index true matrix tmpstip imagemask
+ grestore
+ } for
+ pop
+ } for
+ pop pop pop pop pop
+} bind def
+
+% -- AdjustColor --
+% Given a color value already set for output by the caller, adjusts
+% that value to a grayscale or mono value if requested by the CL
+% variable.
+
+/AdjustColor {
+ CL 2 lt {
+ currentgray
+ CL 0 eq {
+ .5 lt {0} {1} ifelse
+ } if
+ setgray
+ } if
+} bind def
+
+% x y strings spacing xoffset yoffset justify stipple DrawText --
+% This procedure does all of the real work of drawing text. The
+% color and font must already have been set by the caller, and the
+% following arguments must be on the stack:
+%
+% x, y - Coordinates at which to draw text.
+% strings - An array of strings, one for each line of the text item,
+% in order from top to bottom.
+% spacing - Spacing between lines.
+% xoffset - Horizontal offset for text bbox relative to x and y: 0 for
+% nw/w/sw anchor, -0.5 for n/center/s, and -1.0 for ne/e/se.
+% yoffset - Vertical offset for text bbox relative to x and y: 0 for
+% nw/n/ne anchor, +0.5 for w/center/e, and +1.0 for sw/s/se.
+% justify - 0 for left justification, 0.5 for center, 1 for right justify.
+% stipple - Boolean value indicating whether or not text is to be
+% drawn in stippled fashion. If text is stippled,
+% procedure StippleText must have been defined to call
+% StippleFill in the right way.
+%
+% Also, when this procedure is invoked, the color and font must already
+% have been set for the text.
+
+/DrawText {
+ /stipple exch def
+ /justify exch def
+ /yoffset exch def
+ /xoffset exch def
+ /spacing exch def
+ /strings exch def
+
+ % First scan through all of the text to find the widest line.
+
+ /lineLength 0 def
+ strings {
+ cstringwidth pop
+ dup lineLength gt {/lineLength exch def} {pop} ifelse
+ newpath
+ } forall
+
+ % Compute the baseline offset and the actual font height.
+
+ 0 0 moveto (TXygqPZ) false charpath
+ pathbbox dup /baseline exch def
+ exch pop exch sub /height exch def pop
+ newpath
+
+ % Translate coordinates first so that the origin is at the upper-left
+ % corner of the text's bounding box. Remember that x and y for
+ % positioning are still on the stack.
+
+ translate
+ lineLength xoffset mul
+ strings length 1 sub spacing mul height add yoffset mul translate
+
+ % Now use the baseline and justification information to translate so
+ % that the origin is at the baseline and positioning point for the
+ % first line of text.
+
+ justify lineLength mul baseline neg translate
+
+ % Iterate over each of the lines to output it. For each line,
+ % compute its width again so it can be properly justified, then
+ % display it.
+
+ strings {
+ dup cstringwidth pop
+ justify neg mul 0 moveto
+ stipple {
+
+
+ % The text is stippled, so turn it into a path and print
+ % by calling StippledText, which in turn calls StippleFill.
+ % Unfortunately, many Postscript interpreters will get
+ % overflow errors if we try to do the whole string at
+ % once, so do it a character at a time.
+
+ gsave
+ /char (X) def
+ {
+ dup type /stringtype eq {
+ % This segment is a string.
+ {
+ char 0 3 -1 roll put
+ currentpoint
+ gsave
+ char true charpath clip StippleText
+ grestore
+ char stringwidth translate
+ moveto
+ } forall
+ } {
+ % This segment is glyph name
+ % Temporary override
+ currentfont /Encoding get exch 1 exch put
+ currentpoint
+ gsave (\001) true charpath clip StippleText
+ grestore
+ (\001) stringwidth translate
+ moveto
+ } ifelse
+ } forall
+ grestore
+ } {cstringshow} ifelse
+ 0 spacing neg translate
+ } forall
+} bind def
+
+%%EndProlog
+}
+
+}
+
+proc tk::ensure_psenc_is_loaded {} {
+}
+
diff --git a/library/tclIndex b/library/tclIndex
index 711fe32..6b3547d 100644
--- a/library/tclIndex
+++ b/library/tclIndex
@@ -118,6 +118,7 @@ set auto_index(::tk::RestoreOldGrab) [list source [file join $dir menu.tcl]]
set auto_index(tk_menuSetFocus) [list source [file join $dir menu.tcl]]
set auto_index(::tk::GenerateMenuSelect) [list source [file join $dir menu.tcl]]
set auto_index(tk_popup) [list source [file join $dir menu.tcl]]
+set auto_index(::tk::ensure_psenc_is_loaded) [list source [file join $dir mkpsenc.tcl]]
set auto_index(::tk::MessageBox) [list source [file join $dir msgbox.tcl]]
set auto_index(tk_menuBar) [list source [file join $dir obsolete.tcl]]
set auto_index(tk_bindForTraversal) [list source [file join $dir obsolete.tcl]]
diff --git a/tests/canvText.test b/tests/canvText.test
index fd76894..a6316c0 100644
--- a/tests/canvText.test
+++ b/tests/canvText.test
@@ -6,7 +6,7 @@
# Copyright (c) 1998-1999 by Scriptics Corporation.
# All rights reserved.
#
-# RCS: @(#) $Id: canvText.test,v 1.9 2000/02/03 21:27:27 ericm Exp $
+# RCS: @(#) $Id: canvText.test,v 1.10 2002/06/25 16:27:44 a_kovalenko Exp $
if {[lsearch [namespace children] ::tcltest] == -1} {
source [file join [pwd] [file dirname [info script]] defs.tcl]
@@ -493,9 +493,9 @@ test canvText-17.1 {TextToPostscript procedure} {
} "/Courier-Oblique findfont [font actual $font -size] scalefont ISOEncode setfont
0.000 0.000 0.000 setrgbcolor AdjustColor
100 200 \[
-(000)
-(000)
-(00)
+\[(000)\]
+\[(000)\]
+\[(00)\]
] $ay -0.5 0 0 false DrawText
grestore
restore showpage