summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-tex4ht.def
blob: 97fdf10974668dfa0e0d7e0367a114ed39a1d542 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
% Copyright 2006 by Till Tantau
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file doc/generic/pgf/licenses/LICENSE for more details.

\ProvidesFileRCS{pgfsys-tex4ht.def}



% Driver commands for tex4ht

%
% Load common pdf commands:
%
\input pgfsys-common-svg.def

%
% tex4ht-specific stuff:
%
\def\pgfsys@invoke#1{\pgf@sys@fail{svg code in preamble}}
\def\pgfsys@body@invoke#1{\HCode{#1}}

\newcount\pgf@sys@svg@picnum

\def\pgfsys@pictureboxsynced#1{%
  \pgfsys@beginscope\pgflowlevelsynccm\box#1\pgfsys@endscope%
}


%%
%% initial support of Mathml and xhtml inside svg through the svg:foreignelement tag
%%
%% it'll allow us to have complicated text nodes in the tex4ht driver
%%


%Example  (to improve the display, you have to use css)
%
%\tikzpicture[svg text only=false]
%\draw (0,0) node[inner sep=0pt,draw] {tight}
%(0cm,2em) node[inner sep=5pt,draw] {loose}
%(0cm,4em) node[fill=red!20] {default};
%\draw (3,0) node[inner sep=0pt,draw] {TIGHT}
%(3cm,2em) node[inner sep=5pt,draw] {LOOSE}
%(3cm,4em) node[fill=red!20] {DEFAULT};
%\draw (6,0) node[inner sep=0pt,draw] {$tight$}
%(6cm,2em) node[inner sep=5pt,draw] {$loose$}
%(6cm,4em) node[fill=red!20] {$default$};
%\draw (9,0) node[inner sep=0pt,draw] {$TIGHT$}
%(9cm,2em) node[inner sep=5pt,draw] {$LOOSE$}
%(9cm,4em) node[fill=red!20] {$Default$};
%\endtikzpicture
%
% you can use the options "svg text css=filename", "svg text id=idname", "svg text class=classname" to customize the display through the use of css
%







%\def\pgfsys@beginpicture{%
% % \Configure{[]}{$}{$}   these two lines aren't needed for tex4ht and moreother they produce errors with plain tex !
% % \Configure{()}{$}{$}
% \Configure{$$}{}{}{}%$$
% \Configure{$}{}{}{}%$
%  \Configure{SUB}{\HCode{<tspan baseline-shift="sub">}}{\HCode{</tspan>}}
%  \Configure{SUP}{\HCode{<tspan baseline-shift="sub">}}{\HCode{</tspan>}}
%  \Configure{SUBSUP}{}{}{}
%  \Configure{htf}
%    {0}{+}{<tspan font-family="}
%    {\%s}{" font-size="\%s}{}{}
%    {">}{</tspan>}
%}



%\def\pgfsys@endpicture{%
%  % undo:
%  \Configure{htf}{0}{+}{<span\Hnewline
%     class="}{\%s}{-\%s}{x-x-\%d}{}{">}{</span>}
%}

\def\pgfsys@svg@newline{^^J}

% we don't want tex4ht putting <p> and </p> tags automatically in our svg code and causing invalid xhtml in our svg pictures
\newif\ifpgfsys@CssIncluded@\pgfsys@CssIncluded@false
\def\pgfsys@beginpicture{%
  \pgfsys@svg@boxmodefalse%
  \EndP\HtmlParOff%
  \pgfkeys{/pgf/tex4ht node/escape=false}%
  % text only nodes are the default. Advantage : pure svg pictures are
  % the default, nicer for text only nodes.
  % Disadvantages : this rendering methods produce more invalid or degraded svg pictures than with the foreignelement tag
  %% we use css to control the display of foreignelement rendered text nodes
  \ifpgfsys@CssIncluded@
  \else
    \Css{
      .foreignobject {%
        line-height:100\%;
        font-size:120\%; % this is the trick....a font of size 100% in
                         % a box scaled down to half size makes it a
                         % half size font.
                         % you'll have to double the size of things
                         % that you want to have a regular size in
                         % this half-scaled box though
        font-family:STIXgeneral,Times,Symbol,cmr10,CMSY10,CMEX10;%
        % can't wait for the stix font...the cmr10, etc font are
        % available from the mozilla site, times and symbols should be
        % okey
        padding:0;
        margin:0;
        % background-color:\#12ff55;  usefull for debugging positioning
        text-align:center; % good for centered text nodes...will have to improve that later on...with more integration with pgf options for text nodes
      }
    }%
    \Css{%
      math {%, math[mode="inline"] {
        vertical-align:baseline;
        line-height:100\%;
        font-size:100\%;
        font-family:STIXGeneral,Times,Symbol, cmr10,cmsy10,cmex10,cmmi10;
        font-style: normal;
        margin:0;
        % background-color:\#99ff99;
        padding:0;
      }%
    }%
    \pgfsys@CssIncluded@true
  \fi
}%

\def\pgfsys@endpicture{%
  \HtmlParOn
  \par% FIXME : was '\Par' but that seems to be undefined!?
}%

% this is okay for both rendering methods for text nodes (mtext or foreignelement)...
\def\pgfsys@typesetpicturebox#1{%
  \global\advance\pgf@sys@svg@picnum by 1\relax%
  % Ok, compute width/height
  \pgf@xa=\pgf@picminx%
  \pgf@ya=\pgf@picminy%
  \pgf@xb=\pgf@picmaxx%
  \pgf@yb=\pgf@picmaxy%
  \pgf@x=\pgf@xb%
  \advance\pgf@x by-\pgf@xa%
  \pgf@y=\pgf@yb%
  \advance\pgf@y by-\pgf@ya%
  \ifdim\pgf@y<1pt%
    \pgf@y=1pt%
  \fi%
  \pgf@xc=\pgf@x%
  \pgf@yc=\pgf@y%
  \pgfsysprotocol@flushcurrentprotocol%
  \HCode{<object data="\jobname-\the\pgf@sys@svg@picnum.svg" width="}%
  % Calculate pixel coordinates (this does not really make sense, but
  % we have to do it anyway). Assume 96dpi.
  \pgf@x=1.3333333\pgf@x%
  \pgf@y=1.3333333\pgf@y%
  % Add one pixel for security:
  \advance\pgf@x by1pt%
  \advance\pgf@y by1pt%
  \pgf@sys@pt\pgf@x%
  \pgfsysprotocol@flushcurrentprotocol%
  \pgfsys@invoke{" height="}%
  \pgf@sys@pt\pgf@y%
  \pgfsysprotocol@flushcurrentprotocol%
  \pgfsys@invoke{" type="image/svg+xml"><p>SVG-Viewer needed.</p></object>}%
  \special{t4ht>\jobname-\the\pgf@sys@svg@picnum.svg}%
  %%%%%%%% This is necessary to control the svg through css
  \pgfkeys{%
    /pgf/tex4ht node/css/.get=\pgfsys@foreignobject@css
  }%
  \pgfsys@invoke{<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>\Hnewline% added that
  <?xml-stylesheet href="\pgfsys@foreignobject@css.css" type="text/css"?>\Hnewline}% added that
%%%%%%%%%%%%%%% maybee I should add an option to change the css, for the whole picture
  \pgfsys@invoke{<svg xmlns="http://www.w3.org/2000/svg"
    xmlns:xlink="http://www.w3.org/1999/xlink" width="\the\pgf@xc"
    height="\the\pgf@yc" viewBox="}%
  \pgf@sys@pt{\pgf@xa}\pgf@sys@pt{\pgf@ya}\pgf@sys@pt{\pgf@xc}\pgf@sys@pt{\pgf@yc}%
  \pgfsysprotocol@flushcurrentprotocol%
  \pgf@ya=-\pgf@ya%
  \pgfsys@invoke{">\Hnewline  <g transform="translate(0,}
  \pgf@sys@pt\pgf@yb\pgfsysprotocol@flushcurrentprotocol%
  \pgfsys@invoke{) scale(1,-1) translate(0,}%
  \pgf@sys@pt\pgf@ya\pgfsysprotocol@flushcurrentprotocol%
  \pgfsys@invoke{)">\Hnewline }%
  %
  \pgf@ya=\pgf@shift@baseline\relax%
  \advance\pgf@ya by-\pgf@picminy\relax%
  %
  %
  \advance\pgf@picmaxy by-\pgf@picminy\relax% maxy is now the height
  \advance\pgf@picmaxx by-\pgf@picminx\relax% maxx is now the width
  \setbox#1=\hbox{\hskip-\pgf@picminx\lower\pgf@picminy\box#1}%
  \ht#1=\pgf@picmaxy%
  \wd#1=\pgf@picmaxx%
  \dp#1=0pt%
  \leavevmode
  \pgf@xa=\pgf@trimleft@final\relax  \ifdim\pgf@xa=0pt \else\kern\pgf@xa\fi
  \raise-\pgf@ya\box#1%
  \pgf@xa=\pgf@trimright@final\relax \ifdim\pgf@xa=0pt \else\kern\pgf@xa\fi
  \pgfsys@invoke{</g>\Hnewline </svg>\Hnewline }%
  \special{t4ht<\jobname-\the\pgf@sys@svg@picnum.svg}%
}%

%% we'll use this hbox for the mtext rendering method (the "text only=true" option)
\def\pgfsys@hbox#1{%
  \pgf@x=.5\wd#1%
  \ifx\tikz@textcolor\relax\else\ifx\tikz@textcolor\@undefined\else%
    \ifx\tikz@textcolor\pgfutil@empty%
      \pgfsetfillcolor{.}%
    \else%
      \pgfsetfillcolor{\tikz@textcolor}%
    \fi%
  \fi\fi% tweak for TikZ
  \HCode{<text
    style="stroke:none"
    transform="scale(1,-1) translate(\pgf@sys@tonumber{\pgf@x},0)"
    text-anchor="middle"
  }%
  \ifpgfutil@format@is@latex%
    \ifx\f@size\pgfutil@empty%
    \else%
      \HCode{ font-size="\f@size"}%
    \fi%
  \fi%
  \HCode{>\Hnewline }%
    \wd#1=0pt%
    \ht#1=0pt%
    \dp#1=0pt%
    \box#1
  \HCode{</text>\Hnewline }%
}%

%% we save this definition
\let\pgfsys@mtext@hbox\pgfsys@hbox

%% we have to use some "evil" ^^ tex4ht hackery
% tex4ht hackery
{% grouping necessary cause we change the catcode of ":"
  \catcode`:=11\relax
  %%% this is necessary to calculate the size of text nodes with
  %%% inline maths
  % (it is an improvement of tex4ht, got to ask eitan gurary if he
  % could put it in the tex4ht code)
  \gdef\DviMathAlt{%
    \a:DviMath\leavevmode \MathClass
    \ht:special{t4ht@(}\hbox\bgroup{\expandafter\ifx\csname
      ht:everypar\endcsname\relax\expandafter\everypar\else
      \expandafter\ht:everypar\fi{}\leavevmode\ht:special{t4ht@)}}\DviSend
  }%
  % these are configures for the foreignelement rendering method of text nodes : we let tex4ht write xhtml and mathml in the svg picture
  %
  \gdef\pgfsys@foreignobject@configure{%
    \Configure{$}{\Configure{@math}{%\a:mathml
        display="inline" }\DviMathAlt}{\EndDviMath}{}%%% we REALLY need to use \DviMathAlt here instead of \DviMath see above remark
    \Configure{$$}{\Configure{@math}{%\a:mathml
        display="block" }\IgnorePar
      \ifvmode\else \HCode{<!--tex4ht:inline-->}\fi\EndP
      \DviMath}{\EndDviMath\ShowPar\pgfsys@foreignobject@par{\csname HCondtrue\endcsname\noindent}
    }{\DisplayMathtrue}%
    \Configure{SUB}{\Send{BACK}{<\a:mathml msub><\a:mathml mrow\Hnewline>}%
      \Tg</\a:mathml mrow>\Tg<\a:mathml mrow\Hnewline>\trap:base}{\Tg</\a:mathml mrow>\TG</\a:mathml msub\Hnewline>}%
    \Configure{SUP}{\Send{BACK}{<\a:mathml msup><\a:mathml mrow\Hnewline>}%
      \Tg</\a:mathml mrow>\Tg<\a:mathml mrow\Hnewline>\trap:base}{\Tg</\a:mathml mrow>\TG</\a:mathml msup\Hnewline>}%
    \Configure{SUBSUP}{\Send{BACK}{<\a:mathml msubsup><\a:mathml mrow\Hnewline>}%
      \Tg</\a:mathml mrow>\Tg<\a:mathml mrow\Hnewline>\trap:base}{\Tg</\a:mathml mrow>\Tg<\a:mathml mrow\Hnewline>\trap:base}{\Tg</\a:mathml mrow>\TG</\a:mathml msubsup\Hnewline>}%
    \Configure{htf}{0}{+}{<span\Hnewline
      class="}{\%s}{-\%s}{x-x-\%d}{}{">}{</span>}%
  }%
  \global\let\pgfsys@foreignobject@par=\par % use this instead of \par
                                % -- \Configure is no \long macro (at
                                % least in one of the older
                                % versions).

  % these are the configures for the mtext rendering method of text
  % nodes : we turn everything into regular character (don't want math
  % modes or subsup)
  % and we hope it works (it doesn't if the text nodes aren't simple)
  \gdef\pgfsys@mtext@configure{%
    % no configures for \(\) and \[\] those might be needed for
    % context or Latex. Let me know !
    \Configure{$$}{}{}{}% no block maths
    \Configure{$}{}{}{}%$ no inline maths
    \Configure{SUB}{\HCode{<tspan baseline-shift="sub">}}{\HCode{</tspan>}}%
    \Configure{SUP}{\HCode{<tspan baseline-shift="sub">}}{\HCode{</tspan>}}%
    \Configure{SUBSUP}{}{}{}% not both sub and sup
    \Configure{htf} {0}{+}{<tspan font-family="}{\%s}{" font-size="\%s}{}{}{">}{</tspan>}%
  }%
}%

% a counter to produce unique ids for each text node rendered with foreign element
\newcount\pgf@sys@svg@nodenum


% pgfutil@minipage
%
%  I had to change it to make it play nice with the way tex4ht puts <p> and <\p> tags
%

\newif\ifpgfsys@textonly
\def\pgfutil@minipage[#1]#2{%
  \hbox to#2\bgroup
    \hsize=#2\relax
    \vbox\bgroup
% though it works, I'm desabling the above-mentioned hack to make tex4ht behave with <p> <\p>, because it blurps the positioning
% (I''l try to fix that later, it's a css thing)
%
%    \ifpgfsys@textonly\else\HtmlParOn\fi
%
% \noindent is better as it doesn't produce indentation AND it makes you leave vertical mode
    \noindent%\leavevmode
}%
\def\pgfutil@endminipage{%
%  same thing here
%
%  \ifpgfsys@textonly\else\EndP\HtmlParOff\fi
  \egroup\egroup
}%


% I'll have to fix those names later
\newbox\pgfsys@foreignobject@Box
\newdimen\pgf@s
\newdimen\pgf@t
% this is the alternate hbox routine that renders text nodes through the foreignobject tag
\def\pgfsys@foreignobject@hbox#1{%
  % Compute box y translation  (x translation is correct).
  \pgf@y=-\ht#1\relax
  \HCode{<g transform="scale(1,-1) translate(0,\pgf@sys@tonumber{\pgf@y}) % got to translate in y
    scale(0.5,0.5)">\Hnewline}% scaling work around (damn dumb browsers !)
  % Compute box size (scaled 2 times)
  % this is necessary to make the browser scale the font down 50% (the STUPID browsers won't make font-size:50% happen,
  % so we have to work around this by making svg scale the things down 50%, doubling the size of the text node frame (i.e. no changement there)
  \pgf@x=2\wd#1\relax
  \pgf@y=2\ht#1\relax
  \advance\pgf@y by 2\dp#1\relax
  % this is to adjust the y translation to compensate for the differences between the TeX and the Html models for lines
  \setbox\pgfsys@foreignobject@Box=\hbox{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
    $abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZf_1^1\overline D)_1^1\vec i\vec j$}%
  \pgf@t=\ht#1\relax
  \advance\pgf@t by -\ht\pgfsys@foreignobject@Box\relax
  \pgf@s=\pgf@t\relax
  \advance\pgf@s by \dp#1\relax
  \advance\pgf@s by -\dp\pgfsys@foreignobject@Box\relax
  \ifnum\pgf@s>0\relax
    \pgf@s=0pt
    \pgf@t=0pt
  \else
    \advance \pgf@y by -2\pgf@s\relax
    \pgf@t=2\pgf@t\relax
  \fi
  %
  \HCode{<foreignObject x="0" y="\pgf@sys@tonumber{\pgf@t}"
    width="\pgf@sys@tonumber{\pgf@x}" height="\pgf@sys@tonumber{\pgf@y}">}%
  % this is to make use of the css, class and id options through which you can control the way things display
  \pgfkeys{%
    /pgf/tex4ht node/css/.get=\pgfsys@foreignobject@css,%
    /pgf/tex4ht node/class/.get=\pgfsys@foreignobject@class,%
    /pgf/tex4ht node/id/.get=\pgfsys@foreignobject@id
  }%
  \HCode{<head>\Hnewline
    <link rel="stylesheet" type="text/css" href="\pgfsys@foreignobject@css.css" />\Hnewline
    </head>\Hnewline
    % I'll have to look into this, perhaps there are better
    % doctype....&nbsp; aren't recognised and produces invalid svg
    % pictures a workaround (not implemented yet) would be to make
    % them into entities of the svg picture.
    <body id="\pgfsys@foreignobject@id" class="\pgfsys@foreignobject@class" xmlns="http://www.w3.org/1999/xhtml" >\Hnewline
    <div>\Hnewline
  }%
  \box#1%
  \HCode{%
    </div>\Hnewline
    </body>\Hnewline
    </foreignObject>\Hnewline
  }%
  % debug positioning not needed but it would be nice to let it there to control things later on
  % \HCode{<rect x="0" y="0" width="\pgf@sys@tonumber{\pgf@x}" height="\pgf@sys@tonumber{\pgf@y}"
  %   style="fill:yellow;stroke:red; fill-opacity:0.5;stroke-opacity:0.5"/>}
  \HCode{</g>\Hnewline}%
  \global\advance\pgf@sys@svg@nodenum by 1\relax
}%

% the options and the code that controls it all (switches between \pgfsys@mtext@hbox and \pgfsys@foreignelement@hbox)

\pgfkeys{%
  /pgf/.cd,
  tex4ht node/escape/.is choice,
  tex4ht node/escape/false/.code={\let\pgfsys@hbox\pgfsys@mtext@hbox\pgfsys@mtext@configure\pgfsys@textonlytrue},
  tex4ht node/escape/true/.code={\let\pgfsys@hbox\pgfsys@foreignobject@hbox\pgfsys@foreignobject@configure\pgfsys@textonlyfalse},
  tex4ht node/css/.initial=\jobname,
  tex4ht node/class/.initial=foreignobject,
  tex4ht node/id/.initial=\jobname\the\pgf@sys@svg@picnum-\the\pgf@sys@svg@nodenum
}%






% this might be needed
%\font\SvgText=cmr10\relax




% There is something rellay wrong with the way "%" chars are used in here... you should code "}%" to avoid unnecessary spaces
% and it is unnecessary to code \cs%
% got to be carefull with numbers though, cf the texbook...2\relax and 2 % are okey

\def\pgfsys@outerinvoke{\ifpgfpicture\expandafter\pgfsys@invoke\else\expandafter\pgfutil@gobble\fi}

\def\pgfsys@shadingoutsidepgfpicture#1{\pgf@sys@fail{svg code in preamble}}
\def\pgfsys@shadinginsidepgfpicture#1{\pgf@sys@fail{svg code in preamble}}

\def\pgfsys@body@shadingoutsidepgfpicture#1{%
  \begingroup%
    #1%
    \setbox\pgfpic=\hbox to0pt{%
      \pgfsys@beginpicture%
        \pgfsys@beginscope%
          \pgf@sys@svg@sh@defs%
          \pgf@sys@svg@sh%
        \pgfsys@endscope%
      \pgfsys@endpicture%
      \hss%
    }%
    \pgf@process{\pgf@sys@svg@pos}%
    \pgf@picminx=0pt%
    \pgf@picminy=0pt%
    \pgf@picmaxx=\pgf@x%
    \pgf@picmaxy=\pgf@y%
    \def\pgf@shift@baseline{0pt}%
    \pgfsys@typesetpicturebox\pgfpic%
  \endgroup%
}

\def\pgfsys@body@shadinginsidepgfpicture#1{%
  #1%
  \pgf@sys@svg@sh@defs% hmmm....
  \pgf@process{\pgf@sys@svg@pos}
  \pgf@xa=-.5\pgf@x%
  \pgf@ya=-.5\pgf@y%
  \pgfsysprotocol@literal{<g transform="translate(\pgf@sys@tonumber{\pgf@xa},\pgf@sys@tonumber{\pgf@ya})">\Hnewline}%
  \pgf@sys@svg@sh%
  \pgfsysprotocol@literal{</g>\Hnewline}%
}


\ifpgfutil@format@is@latex
  % Protect against color.4ht evil meddling with xcolor:
  \RequirePackage{xcolor}
  \let\pgf@xcolor@declaredcolor=\@declaredcolor
  \let\pgf@xcolor@undeclaredcolor=\@undeclaredcolor
\fi

\AtBeginDocument{
  \let\pgfsys@invoke=\pgfsys@body@invoke
  \let\pgfsys@shadingoutsidepgfpicture=\pgfsys@body@shadingoutsidepgfpicture
  \let\pgfsys@shadinginsidepgfpicture=\pgfsys@body@shadinginsidepgfpicture
  \ifpgfutil@format@is@latex
    \let\pgf@texht@declaredcolor=\@declaredcolor
    \let\pgf@texht@undeclaredcolor=\@undeclaredcolor
    \def\@declaredcolor{\ifpgfpicture\expandafter\pgf@xcolor@declaredcolor\else\expandafter\pgf@texht@declaredcolor\fi}
    \def\@undeclaredcolor{\ifpgfpicture\expandafter\pgf@xcolor@undeclaredcolor\else\expandafter\pgf@texht@undeclaredcolor\fi}
  \fi
  \def\pgfutil@color{\pgfsetcolor}
  % \ConfigureEnv{pgfpicture}{}{}{}{} there is no environment in plain TeX and this produces errors
  % this might be needed for context or latex though....let me know !
}%

\endinput


%%% Local Variables:
%%% mode: latex
%%% End: