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calc: on editing invalidation of view with different zoom is wrong
[LibreOffice.git] / svgio / source / svgreader / svgtools.cxx
blobeec5133cc8a14bfdc209e019f6b2f68a23e958d0
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20 #include <svgtools.hxx>
21 #include <sal/log.hxx>
22 #include <tools/color.hxx>
23 #include <rtl/math.hxx>
24 #include <o3tl/string_view.hxx>
25 #include <basegfx/matrix/b2dhommatrix.hxx>
26 #include <basegfx/matrix/b2dhommatrixtools.hxx>
27 #include <svgtoken.hxx>
28 #include <unordered_map>
29
30 namespace svgio::svgreader
31 {
32 basegfx::B2DHomMatrix SvgAspectRatio::createLinearMapping(const basegfx::B2DRange& rTarget, const basegfx::B2DRange& rSource)
33 {
34 basegfx::B2DHomMatrix aRetval;
35 const double fSWidth(rSource.getWidth());
36 const double fSHeight(rSource.getHeight());
37 const bool bNoSWidth(basegfx::fTools::equalZero(fSWidth));
38 const bool bNoSHeight(basegfx::fTools::equalZero(fSHeight));
39
40 // transform from source state to unit range
41 aRetval.translate(-rSource.getMinX(), -rSource.getMinY());
42 aRetval.scale(
43 (bNoSWidth ? 1.0 : 1.0 / fSWidth) * rTarget.getWidth(),
44 (bNoSHeight ? 1.0 : 1.0 / fSHeight) * rTarget.getHeight());
45
46 // transform from unit rage to target range
47 aRetval.translate(rTarget.getMinX(), rTarget.getMinY());
48
49 return aRetval;
50 }
51
52 basegfx::B2DHomMatrix SvgAspectRatio::createMapping(const basegfx::B2DRange& rTarget, const basegfx::B2DRange& rSource) const
53 {
54 // removed !isSet() from below. Due to correct defaults in the constructor an instance
55 // of this class is perfectly useful without being set by any importer
56 if(SvgAlign::none == getSvgAlign())
57 {
58 // create linear mapping (default)
59 return createLinearMapping(rTarget, rSource);
60 }
61
62 basegfx::B2DHomMatrix aRetval;
63
64 const double fSWidth(rSource.getWidth());
65 const double fSHeight(rSource.getHeight());
66 const bool bNoSWidth(basegfx::fTools::equalZero(fSWidth));
67 const bool bNoSHeight(basegfx::fTools::equalZero(fSHeight));
68 const double fScaleX((bNoSWidth ? 1.0 : 1.0 / fSWidth) * rTarget.getWidth());
69 const double fScaleY((bNoSHeight ? 1.0 : 1.0 / fSHeight) * rTarget.getHeight());
70 const double fScale(isMeetOrSlice() ? std::min(fScaleX, fScaleY) : std::max(fScaleX, fScaleY));
71
72 // remove source translation, apply scale
73 aRetval.translate(-rSource.getMinX(), -rSource.getMinY());
74 aRetval.scale(fScale, fScale);
75
76 // evaluate horizontal alignment
77 const double fNewWidth(fSWidth * fScale);
78 double fTransX(0.0);
79
80 switch(getSvgAlign())
81 {
82 case SvgAlign::xMidYMin:
83 case SvgAlign::xMidYMid:
84 case SvgAlign::xMidYMax:
85 {
86 // centerX
87 const double fFreeSpace(rTarget.getWidth() - fNewWidth);
88 fTransX = fFreeSpace * 0.5;
89 break;
90 }
91 case SvgAlign::xMaxYMin:
92 case SvgAlign::xMaxYMid:
93 case SvgAlign::xMaxYMax:
94 {
95 // Right align
96 const double fFreeSpace(rTarget.getWidth() - fNewWidth);
97 fTransX = fFreeSpace;
98 break;
99 }
100 default: break;
101 }
102
103 // evaluate vertical alignment
104 const double fNewHeight(fSHeight * fScale);
105 double fTransY(0.0);
106
107 switch(getSvgAlign())
108 {
109 case SvgAlign::xMinYMid:
110 case SvgAlign::xMidYMid:
111 case SvgAlign::xMaxYMid:
112 {
113 // centerY
114 const double fFreeSpace(rTarget.getHeight() - fNewHeight);
115 fTransY = fFreeSpace * 0.5;
116 break;
117 }
118 case SvgAlign::xMinYMax:
119 case SvgAlign::xMidYMax:
120 case SvgAlign::xMaxYMax:
121 {
122 // Bottom align
123 const double fFreeSpace(rTarget.getHeight() - fNewHeight);
124 fTransY = fFreeSpace;
125 break;
126 }
127 default: break;
128 }
129
130 // add target translation
131 aRetval.translate(
132 rTarget.getMinX() + fTransX,
133 rTarget.getMinY() + fTransY);
134
135 return aRetval;
136 }
137
138 void skip_char(std::u16string_view rCandidate, sal_Unicode nChar, sal_Int32& nPos, const sal_Int32 nLen)
139 {
140 while(nPos < nLen && nChar == rCandidate[nPos])
141 {
142 nPos++;
143 }
144 }
145
146 void skip_char(std::u16string_view rCandidate, sal_Unicode nCharA, sal_Unicode nCharB, sal_Int32& nPos, const sal_Int32 nLen)
147 {
148 while(nPos < nLen && (nCharA == rCandidate[nPos] || nCharB == rCandidate[nPos]))
149 {
150 nPos++;
151 }
152 }
153
154 void copySign(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen)
155 {
156 if(nPos < nLen)
157 {
158 const sal_Unicode aChar(rCandidate[nPos]);
159
160 if('+' == aChar || '-' == aChar)
161 {
162 rTarget.append(aChar);
163 nPos++;
164 }
165 }
166 }
167
168 void copyNumber(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen)
169 {
170 bool bOnNumber(true);
171
172 while(bOnNumber && nPos < nLen)
173 {
174 const sal_Unicode aChar(rCandidate[nPos]);
175
176 bOnNumber = ('0' <= aChar && '9' >= aChar) || '.' == aChar;
177
178 if(bOnNumber)
179 {
180 rTarget.append(aChar);
181 nPos++;
182 }
183 }
184 }
185
186 void copyHex(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen)
187 {
188 bool bOnHex(true);
189
190 while(bOnHex && nPos < nLen)
191 {
192 const sal_Unicode aChar(rCandidate[nPos]);
193
194 bOnHex = ('0' <= aChar && '9' >= aChar)
195 || ('A' <= aChar && 'F' >= aChar)
196 || ('a' <= aChar && 'f' >= aChar);
197
198 if(bOnHex)
199 {
200 rTarget.append(aChar);
201 nPos++;
202 }
203 }
204 }
205
206 void copyString(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen)
207 {
208 bool bOnChar(true);
209
210 while(bOnChar && nPos < nLen)
211 {
212 const sal_Unicode aChar(rCandidate[nPos]);
213
214 bOnChar = ('a' <= aChar && 'z' >= aChar)
215 || ('A' <= aChar && 'Z' >= aChar)
216 || '-' == aChar;
217
218 if(bOnChar)
219 {
220 rTarget.append(aChar);
221 nPos++;
222 }
223 }
224 }
225
226 void copyToLimiter(std::u16string_view rCandidate, sal_Unicode nLimiter, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen)
227 {
228 while(nPos < nLen && nLimiter != rCandidate[nPos])
229 {
230 rTarget.append(rCandidate[nPos]);
231 nPos++;
232 }
233 }
234
235 bool readNumber(std::u16string_view rCandidate, sal_Int32& nPos, double& fNum, const sal_Int32 nLen)
236 {
237 if(nPos < nLen)
238 {
239 OUStringBuffer aNum;
240
241 copySign(rCandidate, nPos, aNum, nLen);
242 copyNumber(rCandidate, nPos, aNum, nLen);
243
244 if(nPos < nLen)
245 {
246 const sal_Unicode aChar(rCandidate[nPos]);
247
248 if('e' == aChar || 'E' == aChar)
249 {
250 // try to read exponential number, but be careful. I had
251 // a case where dx="2em" was used, thus the 'e' was consumed
252 // by error. First try if there are numbers after the 'e',
253 // safe current state
254 nPos++;
255 const OUStringBuffer aNum2(aNum);
256 const sal_Int32 nPosAfterE(nPos);
257
258 aNum.append(aChar);
259 copySign(rCandidate, nPos, aNum, nLen);
260 copyNumber(rCandidate, nPos, aNum, nLen);
261
262 if(nPosAfterE == nPos)
263 {
264 // no number after 'e', go back. Do not
265 // return false, it's still a valid integer number
266 aNum = aNum2;
267 nPos--;
268 }
269 }
270 }
271
272 if(!aNum.isEmpty())
273 {
274 rtl_math_ConversionStatus eStatus;
275
276 fNum = rtl::math::stringToDouble(
277 aNum, '.', ',',
278 &eStatus);
279
280 return eStatus == rtl_math_ConversionStatus_Ok;
281 }
282 }
283
284 return false;
285 }
286
287 SvgUnit readUnit(std::u16string_view rCandidate, sal_Int32& nPos, const sal_Int32 nLen)
288 {
289 SvgUnit aRetval(SvgUnit::px);
290
291 if(nPos < nLen)
292 {
293 const sal_Unicode aCharA(rCandidate[nPos]);
294
295 if(nPos + 1 < nLen)
296 {
297 const sal_Unicode aCharB(rCandidate[nPos + 1]);
298 bool bTwoCharValid(false);
299
300 switch(aCharA)
301 {
302 case u'e' :
303 {
304 if('m' == aCharB)
305 {
306 // 'em' Relative to current font size
307 aRetval = SvgUnit::em;
308 bTwoCharValid = true;
309 }
310 else if('x' == aCharB)
311 {
312 // 'ex' Relative to current font x-height
313 aRetval = SvgUnit::ex;
314 bTwoCharValid = true;
315 }
316 break;
317 }
318 case u'p' :
319 {
320 if('x' == aCharB)
321 {
322 // 'px' UserUnit (default)
323 bTwoCharValid = true;
324 }
325 else if('t' == aCharB)
326 {
327 // 'pt' == 4/3 px
328 aRetval = SvgUnit::pt;
329 bTwoCharValid = true;
330 }
331 else if('c' == aCharB)
332 {
333 // 'pc' == 16 px
334 aRetval = SvgUnit::pc;
335 bTwoCharValid = true;
336 }
337 break;
338 }
339 case u'i' :
340 {
341 if('n' == aCharB)
342 {
343 // 'in' == 96 px, since CSS 2.1
344 aRetval = SvgUnit::in;
345 bTwoCharValid = true;
346 }
347 break;
348 }
349 case u'c' :
350 {
351 if('m' == aCharB)
352 {
353 // 'cm' == 37.79527559 px
354 aRetval = SvgUnit::cm;
355 bTwoCharValid = true;
356 }
357 break;
358 }
359 case u'm' :
360 {
361 if('m' == aCharB)
362 {
363 // 'mm' == 3.779528 px
364 aRetval = SvgUnit::mm;
365 bTwoCharValid = true;
366 }
367 break;
368 }
369 }
370
371 if(bTwoCharValid)
372 {
373 nPos += 2;
374 }
375 }
376 else
377 {
378 if('%' == aCharA)
379 {
380 // percent used, relative to current
381 nPos++;
382 aRetval = SvgUnit::percent;
383 }
384 }
385 }
386
387 return aRetval;
388 }
389
390 bool readNumberAndUnit(std::u16string_view rCandidate, sal_Int32& nPos, SvgNumber& aNum, const sal_Int32 nLen)
391 {
392 double fNum(0.0);
393
394 if(readNumber(rCandidate, nPos, fNum, nLen))
395 {
396 skip_char(rCandidate, ' ', nPos, nLen);
397 aNum = SvgNumber(fNum, readUnit(rCandidate, nPos, nLen));
398
399 return true;
400 }
401
402 return false;
403 }
404
405 bool readAngle(std::u16string_view rCandidate, sal_Int32& nPos, double& fAngle, const sal_Int32 nLen)
406 {
407 if(readNumber(rCandidate, nPos, fAngle, nLen))
408 {
409 skip_char(rCandidate, ' ', nPos, nLen);
410
411 enum class DegreeType
412 {
413 deg,
414 grad,
415 rad
416 } aType(DegreeType::deg); // degrees is default
417
418 if(nPos < nLen)
419 {
420 const sal_Unicode aChar(rCandidate[nPos]);
421 static constexpr std::u16string_view aStrGrad = u"grad";
422 static constexpr std::u16string_view aStrRad = u"rad";
423
424 switch(aChar)
425 {
426 case u'g' :
427 case u'G' :
428 {
429 if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrGrad, nPos))
430 {
431 // angle in grad
432 nPos += aStrGrad.size();
433 aType = DegreeType::grad;
434 }
435 break;
436 }
437 case u'r' :
438 case u'R' :
439 {
440 if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrRad, nPos))
441 {
442 // angle in radians
443 nPos += aStrRad.size();
444 aType = DegreeType::rad;
445 }
446 break;
447 }
448 }
449 }
450
451 // convert to radians
452 if (DegreeType::deg == aType)
453 {
454 fAngle = basegfx::deg2rad(fAngle);
455 }
456 else if (DegreeType::grad == aType)
457 {
458 // looks like 100 grad is 90 degrees
459 fAngle *= M_PI / 200.0;
460 }
461
462 return true;
463 }
464
465 return false;
466 }
467
468 sal_Int32 read_hex(sal_Unicode nChar)
469 {
470 if(nChar >= '0' && nChar <= '9')
471 {
472 return nChar - u'0';
473 }
474 else if(nChar >= 'A' && nChar <= 'F')
475 {
476 return 10 + sal_Int32(nChar - u'A');
477 }
478 else if(nChar >= 'a' && nChar <= 'f')
479 {
480 return 10 + sal_Int32(nChar - u'a');
481 }
482 else
483 {
484 // error
485 return 0;
486 }
487 }
488
489 bool match_colorKeyword(basegfx::BColor& rColor, const OUString& rName)
490 {
491 typedef std::unordered_map< OUString, Color > ColorTokenMapper;
492 typedef std::pair< OUString, Color > ColorTokenValueType;
493 static const ColorTokenMapper aColorTokenMapperList {
494 { ColorTokenValueType(OUString("aliceblue"), Color(240, 248, 255)) },
495 { ColorTokenValueType(OUString("antiquewhite"), Color(250, 235, 215) ) },
496 { ColorTokenValueType(OUString("aqua"), Color( 0, 255, 255) ) },
497 { ColorTokenValueType(OUString("aquamarine"), Color(127, 255, 212) ) },
498 { ColorTokenValueType(OUString("azure"), Color(240, 255, 255) ) },
499 { ColorTokenValueType(OUString("beige"), Color(245, 245, 220) ) },
500 { ColorTokenValueType(OUString("bisque"), Color(255, 228, 196) ) },
501 { ColorTokenValueType(OUString("black"), Color( 0, 0, 0) ) },
502 { ColorTokenValueType(OUString("blanchedalmond"), Color(255, 235, 205) ) },
503 { ColorTokenValueType(OUString("blue"), Color( 0, 0, 255) ) },
504 { ColorTokenValueType(OUString("blueviolet"), Color(138, 43, 226) ) },
505 { ColorTokenValueType(OUString("brown"), Color(165, 42, 42) ) },
506 { ColorTokenValueType(OUString("burlywood"), Color(222, 184, 135) ) },
507 { ColorTokenValueType(OUString("cadetblue"), Color( 95, 158, 160) ) },
508 { ColorTokenValueType(OUString("chartreuse"), Color(127, 255, 0) ) },
509 { ColorTokenValueType(OUString("chocolate"), Color(210, 105, 30) ) },
510 { ColorTokenValueType(OUString("coral"), Color(255, 127, 80) ) },
511 { ColorTokenValueType(OUString("cornflowerblue"), Color(100, 149, 237) ) },
512 { ColorTokenValueType(OUString("cornsilk"), Color(255, 248, 220) ) },
513 { ColorTokenValueType(OUString("crimson"), Color(220, 20, 60) ) },
514 { ColorTokenValueType(OUString("cyan"), Color( 0, 255, 255) ) },
515 { ColorTokenValueType(OUString("darkblue"), Color( 0, 0, 139) ) },
516 { ColorTokenValueType(OUString("darkcyan"), Color( 0, 139, 139) ) },
517 { ColorTokenValueType(OUString("darkgoldenrod"), Color(184, 134, 11) ) },
518 { ColorTokenValueType(OUString("darkgray"), Color(169, 169, 169) ) },
519 { ColorTokenValueType(OUString("darkgreen"), Color( 0, 100, 0) ) },
520 { ColorTokenValueType(OUString("darkgrey"), Color(169, 169, 169) ) },
521 { ColorTokenValueType(OUString("darkkhaki"), Color(189, 183, 107) ) },
522 { ColorTokenValueType(OUString("darkmagenta"), Color(139, 0, 139) ) },
523 { ColorTokenValueType(OUString("darkolivegreen"), Color( 85, 107, 47) ) },
524 { ColorTokenValueType(OUString("darkorange"), Color(255, 140, 0) ) },
525 { ColorTokenValueType(OUString("darkorchid"), Color(153, 50, 204) ) },
526 { ColorTokenValueType(OUString("darkred"), Color(139, 0, 0) ) },
527 { ColorTokenValueType(OUString("darksalmon"), Color(233, 150, 122) ) },
528 { ColorTokenValueType(OUString("darkseagreen"), Color(143, 188, 143) ) },
529 { ColorTokenValueType(OUString("darkslateblue"), Color( 72, 61, 139) ) },
530 { ColorTokenValueType(OUString("darkslategray"), Color( 47, 79, 79) ) },
531 { ColorTokenValueType(OUString("darkslategrey"), Color( 47, 79, 79) ) },
532 { ColorTokenValueType(OUString("darkturquoise"), Color( 0, 206, 209) ) },
533 { ColorTokenValueType(OUString("darkviolet"), Color(148, 0, 211) ) },
534 { ColorTokenValueType(OUString("deeppink"), Color(255, 20, 147) ) },
535 { ColorTokenValueType(OUString("deepskyblue"), Color( 0, 191, 255) ) },
536 { ColorTokenValueType(OUString("dimgray"), Color(105, 105, 105) ) },
537 { ColorTokenValueType(OUString("dimgrey"), Color(105, 105, 105) ) },
538 { ColorTokenValueType(OUString("dodgerblue"), Color( 30, 144, 255) ) },
539 { ColorTokenValueType(OUString("firebrick"), Color(178, 34, 34) ) },
540 { ColorTokenValueType(OUString("floralwhite"), Color(255, 250, 240) ) },
541 { ColorTokenValueType(OUString("forestgreen"), Color( 34, 139, 34) ) },
542 { ColorTokenValueType(OUString("fuchsia"), Color(255, 0, 255) ) },
543 { ColorTokenValueType(OUString("gainsboro"), Color(220, 220, 220) ) },
544 { ColorTokenValueType(OUString("ghostwhite"), Color(248, 248, 255) ) },
545 { ColorTokenValueType(OUString("gold"), Color(255, 215, 0) ) },
546 { ColorTokenValueType(OUString("goldenrod"), Color(218, 165, 32) ) },
547 { ColorTokenValueType(OUString("gray"), Color(128, 128, 128) ) },
548 { ColorTokenValueType(OUString("grey"), Color(128, 128, 128) ) },
549 { ColorTokenValueType(OUString("green"), Color(0, 128, 0) ) },
550 { ColorTokenValueType(OUString("greenyellow"), Color(173, 255, 47) ) },
551 { ColorTokenValueType(OUString("honeydew"), Color(240, 255, 240) ) },
552 { ColorTokenValueType(OUString("hotpink"), Color(255, 105, 180) ) },
553 { ColorTokenValueType(OUString("indianred"), Color(205, 92, 92) ) },
554 { ColorTokenValueType(OUString("indigo"), Color( 75, 0, 130) ) },
555 { ColorTokenValueType(OUString("ivory"), Color(255, 255, 240) ) },
556 { ColorTokenValueType(OUString("khaki"), Color(240, 230, 140) ) },
557 { ColorTokenValueType(OUString("lavender"), Color(230, 230, 250) ) },
558 { ColorTokenValueType(OUString("lavenderblush"), Color(255, 240, 245) ) },
559 { ColorTokenValueType(OUString("lawngreen"), Color(124, 252, 0) ) },
560 { ColorTokenValueType(OUString("lemonchiffon"), Color(255, 250, 205) ) },
561 { ColorTokenValueType(OUString("lightblue"), Color(173, 216, 230) ) },
562 { ColorTokenValueType(OUString("lightcoral"), Color(240, 128, 128) ) },
563 { ColorTokenValueType(OUString("lightcyan"), Color(224, 255, 255) ) },
564 { ColorTokenValueType(OUString("lightgoldenrodyellow"), Color(250, 250, 210) ) },
565 { ColorTokenValueType(OUString("lightgray"), Color(211, 211, 211) ) },
566 { ColorTokenValueType(OUString("lightgreen"), Color(144, 238, 144) ) },
567 { ColorTokenValueType(OUString("lightgrey"), Color(211, 211, 211) ) },
568 { ColorTokenValueType(OUString("lightpink"), Color(255, 182, 193) ) },
569 { ColorTokenValueType(OUString("lightsalmon"), Color(255, 160, 122) ) },
570 { ColorTokenValueType(OUString("lightseagreen"), Color( 32, 178, 170) ) },
571 { ColorTokenValueType(OUString("lightskyblue"), Color(135, 206, 250) ) },
572 { ColorTokenValueType(OUString("lightslategray"), Color(119, 136, 153) ) },
573 { ColorTokenValueType(OUString("lightslategrey"), Color(119, 136, 153) ) },
574 { ColorTokenValueType(OUString("lightsteelblue"), Color(176, 196, 222) ) },
575 { ColorTokenValueType(OUString("lightyellow"), Color(255, 255, 224) ) },
576 { ColorTokenValueType(OUString("lime"), Color( 0, 255, 0) ) },
577 { ColorTokenValueType(OUString("limegreen"), Color( 50, 205, 50) ) },
578 { ColorTokenValueType(OUString("linen"), Color(250, 240, 230) ) },
579 { ColorTokenValueType(OUString("magenta"), Color(255, 0, 255) ) },
580 { ColorTokenValueType(OUString("maroon"), Color(128, 0, 0) ) },
581 { ColorTokenValueType(OUString("mediumaquamarine"), Color(102, 205, 170) ) },
582 { ColorTokenValueType(OUString("mediumblue"), Color( 0, 0, 205) ) },
583 { ColorTokenValueType(OUString("mediumorchid"), Color(186, 85, 211) ) },
584 { ColorTokenValueType(OUString("mediumpurple"), Color(147, 112, 219) ) },
585 { ColorTokenValueType(OUString("mediumseagreen"), Color( 60, 179, 113) ) },
586 { ColorTokenValueType(OUString("mediumslateblue"), Color(123, 104, 238) ) },
587 { ColorTokenValueType(OUString("mediumspringgreen"), Color( 0, 250, 154) ) },
588 { ColorTokenValueType(OUString("mediumturquoise"), Color( 72, 209, 204) ) },
589 { ColorTokenValueType(OUString("mediumvioletred"), Color(199, 21, 133) ) },
590 { ColorTokenValueType(OUString("midnightblue"), Color( 25, 25, 112) ) },
591 { ColorTokenValueType(OUString("mintcream"), Color(245, 255, 250) ) },
592 { ColorTokenValueType(OUString("mistyrose"), Color(255, 228, 225) ) },
593 { ColorTokenValueType(OUString("moccasin"), Color(255, 228, 181) ) },
594 { ColorTokenValueType(OUString("navajowhite"), Color(255, 222, 173) ) },
595 { ColorTokenValueType(OUString("navy"), Color( 0, 0, 128) ) },
596 { ColorTokenValueType(OUString("oldlace"), Color(253, 245, 230) ) },
597 { ColorTokenValueType(OUString("olive"), Color(128, 128, 0) ) },
598 { ColorTokenValueType(OUString("olivedrab"), Color(107, 142, 35) ) },
599 { ColorTokenValueType(OUString("orange"), Color(255, 165, 0) ) },
600 { ColorTokenValueType(OUString("orangered"), Color(255, 69, 0) ) },
601 { ColorTokenValueType(OUString("orchid"), Color(218, 112, 214) ) },
602 { ColorTokenValueType(OUString("palegoldenrod"), Color(238, 232, 170) ) },
603 { ColorTokenValueType(OUString("palegreen"), Color(152, 251, 152) ) },
604 { ColorTokenValueType(OUString("paleturquoise"), Color(175, 238, 238) ) },
605 { ColorTokenValueType(OUString("palevioletred"), Color(219, 112, 147) ) },
606 { ColorTokenValueType(OUString("papayawhip"), Color(255, 239, 213) ) },
607 { ColorTokenValueType(OUString("peachpuff"), Color(255, 218, 185) ) },
608 { ColorTokenValueType(OUString("peru"), Color(205, 133, 63) ) },
609 { ColorTokenValueType(OUString("pink"), Color(255, 192, 203) ) },
610 { ColorTokenValueType(OUString("plum"), Color(221, 160, 221) ) },
611 { ColorTokenValueType(OUString("powderblue"), Color(176, 224, 230) ) },
612 { ColorTokenValueType(OUString("purple"), Color(128, 0, 128) ) },
613 { ColorTokenValueType(OUString("red"), Color(255, 0, 0) ) },
614 { ColorTokenValueType(OUString("rosybrown"), Color(188, 143, 143) ) },
615 { ColorTokenValueType(OUString("royalblue"), Color( 65, 105, 225) ) },
616 { ColorTokenValueType(OUString("saddlebrown"), Color(139, 69, 19) ) },
617 { ColorTokenValueType(OUString("salmon"), Color(250, 128, 114) ) },
618 { ColorTokenValueType(OUString("sandybrown"), Color(244, 164, 96) ) },
619 { ColorTokenValueType(OUString("seagreen"), Color( 46, 139, 87) ) },
620 { ColorTokenValueType(OUString("seashell"), Color(255, 245, 238) ) },
621 { ColorTokenValueType(OUString("sienna"), Color(160, 82, 45) ) },
622 { ColorTokenValueType(OUString("silver"), Color(192, 192, 192) ) },
623 { ColorTokenValueType(OUString("skyblue"), Color(135, 206, 235) ) },
624 { ColorTokenValueType(OUString("slateblue"), Color(106, 90, 205) ) },
625 { ColorTokenValueType(OUString("slategray"), Color(112, 128, 144) ) },
626 { ColorTokenValueType(OUString("slategrey"), Color(112, 128, 144) ) },
627 { ColorTokenValueType(OUString("snow"), Color(255, 250, 250) ) },
628 { ColorTokenValueType(OUString("springgreen"), Color( 0, 255, 127) ) },
629 { ColorTokenValueType(OUString("steelblue"), Color( 70, 130, 180) ) },
630 { ColorTokenValueType(OUString("tan"), Color(210, 180, 140) ) },
631 { ColorTokenValueType(OUString("teal"), Color( 0, 128, 128) ) },
632 { ColorTokenValueType(OUString("thistle"), Color(216, 191, 216) ) },
633 { ColorTokenValueType(OUString("tomato"), Color(255, 99, 71) ) },
634 { ColorTokenValueType(OUString("turquoise"), Color( 64, 224, 208) ) },
635 { ColorTokenValueType(OUString("violet"), Color(238, 130, 238) ) },
636 { ColorTokenValueType(OUString("wheat"), Color(245, 222, 179) ) },
637 { ColorTokenValueType(OUString("white"), Color(255, 255, 255) ) },
638 { ColorTokenValueType(OUString("whitesmoke"), Color(245, 245, 245) ) },
639 { ColorTokenValueType(OUString("yellow"), Color(255, 255, 0) ) },
640 { ColorTokenValueType(OUString("yellowgreen"), Color(154, 205, 50) ) },
641 };
642
643 ColorTokenMapper::const_iterator aResult(aColorTokenMapperList.find(rName.toAsciiLowerCase().trim()));
644
645 if(aResult == aColorTokenMapperList.end())
646 {
647 return false;
648 }
649 else
650 {
651 rColor = aResult->second.getBColor();
652 return true;
653 }
654 }
655
656 bool read_color(const OUString& rCandidate, basegfx::BColor& rColor, SvgNumber& rOpacity)
657 {
658 const sal_Int32 nLen(rCandidate.getLength());
659
660 if(nLen)
661 {
662 const sal_Unicode aChar(rCandidate[0]);
663 const double fFactor(1.0 / 255.0);
664
665 if(aChar == '#')
666 {
667 // hex definition
668 OUStringBuffer aNum;
669 sal_Int32 nPos(1);
670
671 copyHex(rCandidate, nPos, aNum, nLen);
672 const sal_Int32 nLength(aNum.getLength());
673
674 if(3 == nLength)
675 {
676 const sal_Int32 nR(read_hex(aNum[0]));
677 const sal_Int32 nG(read_hex(aNum[1]));
678 const sal_Int32 nB(read_hex(aNum[2]));
679
680 rColor.setRed((nR | (nR << 4)) * fFactor);
681 rColor.setGreen((nG | (nG << 4)) * fFactor);
682 rColor.setBlue((nB | (nB << 4)) * fFactor);
683
684 return true;
685 }
686 else if(6 == nLength)
687 {
688 const sal_Int32 nR1(read_hex(aNum[0]));
689 const sal_Int32 nR2(read_hex(aNum[1]));
690 const sal_Int32 nG1(read_hex(aNum[2]));
691 const sal_Int32 nG2(read_hex(aNum[3]));
692 const sal_Int32 nB1(read_hex(aNum[4]));
693 const sal_Int32 nB2(read_hex(aNum[5]));
694
695 rColor.setRed((nR2 | (nR1 << 4)) * fFactor);
696 rColor.setGreen((nG2 | (nG1 << 4)) * fFactor);
697 rColor.setBlue((nB2 | (nB1 << 4)) * fFactor);
698
699 return true;
700 }
701 }
702 else
703 {
704 static const char aStrRgb[] = "rgb";
705
706 if(rCandidate.matchIgnoreAsciiCase(aStrRgb, 0))
707 {
708 // rgb/rgba definition
709 sal_Int32 nPos(strlen(aStrRgb));
710 bool bIsRGBA = false;
711
712 if('a' == rCandidate[nPos])
713 {
714 //Delete the 'a' from 'rbga'
715 skip_char(rCandidate, 'a', nPos, nPos + 1);
716 bIsRGBA = true;
717 }
718
719 skip_char(rCandidate, ' ', '(', nPos, nLen);
720 double fR(0.0);
721
722 if(readNumber(rCandidate, nPos, fR, nLen))
723 {
724 skip_char(rCandidate, ' ', nPos, nLen);
725
726 if(nPos < nLen)
727 {
728 const sal_Unicode aPercentChar(rCandidate[nPos]);
729 const bool bIsPercent('%' == aPercentChar);
730 double fG(0.0);
731
732 if(bIsPercent)
733 {
734 skip_char(rCandidate, '%', nPos, nLen);
735 }
736
737 skip_char(rCandidate, ' ', ',', nPos, nLen);
738
739 if(readNumber(rCandidate, nPos, fG, nLen))
740 {
741 double fB(0.0);
742
743 if(bIsPercent)
744 {
745 skip_char(rCandidate, '%', nPos, nLen);
746 }
747
748 skip_char(rCandidate, ' ', ',', nPos, nLen);
749
750 if(readNumber(rCandidate, nPos, fB, nLen))
751 {
752 double fA(1.0);
753
754 if(bIsPercent)
755 {
756 skip_char(rCandidate, '%', nPos, nLen);
757 }
758
759 skip_char(rCandidate, ' ', ',', nPos, nLen);
760
761 if(readNumber(rCandidate, nPos, fA, nLen))
762 {
763 if(bIsRGBA)
764 {
765 const double fFac(bIsPercent ? 0.01 : 1);
766 rOpacity = SvgNumber(fA * fFac);
767
768 if(bIsPercent)
769 {
770 skip_char(rCandidate, '%', nPos, nLen);
771 }
772 }
773 else
774 {
775 return false;
776 }
777 }
778
779 const double fFac(bIsPercent ? 0.01 : fFactor);
780
781 rColor.setRed(fR * fFac);
782 rColor.setGreen(fG * fFac);
783 rColor.setBlue(fB * fFac);
784
785 skip_char(rCandidate, ' ', ')', nPos, nLen);
786 return true;
787 }
788 }
789 }
790 }
791 }
792 else
793 {
794 // color keyword
795 if(match_colorKeyword(rColor, rCandidate))
796 {
797 return true;
798 }
799 }
800 }
801 }
802
803 return false;
804 }
805
806 basegfx::B2DRange readViewBox(std::u16string_view rCandidate, InfoProvider const & rInfoProvider)
807 {
808 const sal_Int32 nLen(rCandidate.size());
809
810 if(nLen)
811 {
812 sal_Int32 nPos(0);
813 SvgNumber aMinX;
814 skip_char(rCandidate, ' ', ',', nPos, nLen);
815
816 if(readNumberAndUnit(rCandidate, nPos, aMinX, nLen))
817 {
818 SvgNumber aMinY;
819 skip_char(rCandidate, ' ', ',', nPos, nLen);
820
821 if(readNumberAndUnit(rCandidate, nPos, aMinY, nLen))
822 {
823 SvgNumber aWidth;
824 skip_char(rCandidate, ' ', ',', nPos, nLen);
825
826 if(readNumberAndUnit(rCandidate, nPos, aWidth, nLen))
827 {
828 SvgNumber aHeight;
829 skip_char(rCandidate, ' ', ',', nPos, nLen);
830
831 if(readNumberAndUnit(rCandidate, nPos, aHeight, nLen))
832 {
833 double fX(aMinX.solve(rInfoProvider, NumberType::xcoordinate));
834 double fY(aMinY.solve(rInfoProvider, NumberType::ycoordinate));
835 double fW(aWidth.solve(rInfoProvider, NumberType::xcoordinate));
836 double fH(aHeight.solve(rInfoProvider, NumberType::ycoordinate));
837 return basegfx::B2DRange(fX,fY,fX+fW,fY+fH);
838 }
839 }
840 }
841 }
842 }
843
844 return basegfx::B2DRange();
845 }
846
847 basegfx::B2DHomMatrix readTransform(std::u16string_view rCandidate, InfoProvider const & rInfoProvider)
848 {
849 basegfx::B2DHomMatrix aMatrix;
850 const sal_Int32 nLen(rCandidate.size());
851
852 if(nLen)
853 {
854 sal_Int32 nPos(0);
855 skip_char(rCandidate, ' ', ',', nPos, nLen);
856
857 while(nPos < nLen)
858 {
859 const sal_Unicode aChar(rCandidate[nPos]);
860 const sal_Int32 nInitPos(nPos);
861 static constexpr std::u16string_view aStrMatrix = u"matrix";
862 static constexpr std::u16string_view aStrTranslate = u"translate";
863 static constexpr std::u16string_view aStrScale = u"scale";
864 static constexpr std::u16string_view aStrRotate = u"rotate";
865 static constexpr std::u16string_view aStrSkewX = u"skewX";
866 static constexpr std::u16string_view aStrSkewY = u"skewY";
867
868 switch(aChar)
869 {
870 case u'm' :
871 {
872 if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrMatrix, nPos))
873 {
874 // matrix element
875 nPos += aStrMatrix.size();
876 skip_char(rCandidate, ' ', '(', nPos, nLen);
877 SvgNumber aVal;
878 basegfx::B2DHomMatrix aNew;
879
880 if(readNumberAndUnit(rCandidate, nPos, aVal, nLen))
881 {
882 aNew.set(0, 0, aVal.solve(rInfoProvider)); // Element A
883 skip_char(rCandidate, ' ', ',', nPos, nLen);
884
885 if(readNumberAndUnit(rCandidate, nPos, aVal, nLen))
886 {
887 aNew.set(1, 0, aVal.solve(rInfoProvider)); // Element B
888 skip_char(rCandidate, ' ', ',', nPos, nLen);
889
890 if(readNumberAndUnit(rCandidate, nPos, aVal, nLen))
891 {
892 aNew.set(0, 1, aVal.solve(rInfoProvider)); // Element C
893 skip_char(rCandidate, ' ', ',', nPos, nLen);
894
895 if(readNumberAndUnit(rCandidate, nPos, aVal, nLen))
896 {
897 aNew.set(1, 1, aVal.solve(rInfoProvider)); // Element D
898 skip_char(rCandidate, ' ', ',', nPos, nLen);
899
900 if(readNumberAndUnit(rCandidate, nPos, aVal, nLen))
901 {
902 aNew.set(0, 2, aVal.solve(rInfoProvider, NumberType::xcoordinate)); // Element E
903 skip_char(rCandidate, ' ', ',', nPos, nLen);
904
905 if(readNumberAndUnit(rCandidate, nPos, aVal, nLen))
906 {
907 aNew.set(1, 2, aVal.solve(rInfoProvider, NumberType::ycoordinate)); // Element F
908 skip_char(rCandidate, ' ', ')', nPos, nLen);
909 skip_char(rCandidate, ' ', ',', nPos, nLen);
910
911 // caution: String is evaluated from left to right, but matrix multiplication
912 // in SVG is right to left, so put the new transformation before the current
913 // one by multiplicating from the right side
914 aMatrix = aMatrix * aNew;
915 }
916 }
917 }
918 }
919 }
920 }
921 }
922 break;
923 }
924 case u't' :
925 {
926 if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrTranslate, nPos))
927 {
928 // translate element
929 nPos += aStrTranslate.size();
930 skip_char(rCandidate, ' ', '(', nPos, nLen);
931 SvgNumber aTransX;
932
933 if(readNumberAndUnit(rCandidate, nPos, aTransX, nLen))
934 {
935 skip_char(rCandidate, ' ', ',', nPos, nLen);
936 SvgNumber aTransY;
937 readNumberAndUnit(rCandidate, nPos, aTransY, nLen);
938 skip_char(rCandidate, ' ', ')', nPos, nLen);
939 skip_char(rCandidate, ' ', ',', nPos, nLen);
940
941 aMatrix = aMatrix * basegfx::utils::createTranslateB2DHomMatrix(
942 aTransX.solve(rInfoProvider, NumberType::xcoordinate),
943 aTransY.solve(rInfoProvider, NumberType::ycoordinate));
944 }
945 }
946 break;
947 }
948 case u's' :
949 {
950 if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrScale, nPos))
951 {
952 // scale element
953 nPos += aStrScale.size();
954 skip_char(rCandidate, ' ', '(', nPos, nLen);
955 SvgNumber aScaleX;
956
957 if(readNumberAndUnit(rCandidate, nPos, aScaleX, nLen))
958 {
959 skip_char(rCandidate, ' ', ',', nPos, nLen);
960 SvgNumber aScaleY(aScaleX);
961 readNumberAndUnit(rCandidate, nPos, aScaleY, nLen);
962 skip_char(rCandidate, ' ', ')', nPos, nLen);
963 skip_char(rCandidate, ' ', ',', nPos, nLen);
964
965 aMatrix = aMatrix * basegfx::utils::createScaleB2DHomMatrix(
966 aScaleX.solve(rInfoProvider),
967 aScaleY.solve(rInfoProvider));
968 }
969 }
970 else if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrSkewX, nPos))
971 {
972 // skewx element
973 nPos += aStrSkewX.size();
974 skip_char(rCandidate, ' ', '(', nPos, nLen);
975 double fSkewX(0.0);
976
977 if(readAngle(rCandidate, nPos, fSkewX, nLen))
978 {
979 skip_char(rCandidate, ' ', ')', nPos, nLen);
980 skip_char(rCandidate, ' ', ',', nPos, nLen);
981
982 aMatrix = aMatrix * basegfx::utils::createShearXB2DHomMatrix(tan(fSkewX));
983 }
984 }
985 else if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrSkewY, nPos))
986 {
987 // skewy element
988 nPos += aStrSkewY.size();
989 skip_char(rCandidate, ' ', '(', nPos, nLen);
990 double fSkewY(0.0);
991
992 if(readAngle(rCandidate, nPos, fSkewY, nLen))
993 {
994 skip_char(rCandidate, ' ', ')', nPos, nLen);
995 skip_char(rCandidate, ' ', ',', nPos, nLen);
996
997 aMatrix = aMatrix * basegfx::utils::createShearYB2DHomMatrix(tan(fSkewY));
998 }
999 }
1000 break;
1001 }
1002 case u'r' :
1003 {
1004 if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrRotate, nPos))
1005 {
1006 // rotate element
1007 nPos += aStrRotate.size();
1008 skip_char(rCandidate, ' ', '(', nPos, nLen);
1009 double fAngle(0.0);
1010
1011 if(readAngle(rCandidate, nPos, fAngle, nLen))
1012 {
1013 skip_char(rCandidate, ' ', ',', nPos, nLen);
1014 SvgNumber aX;
1015 readNumberAndUnit(rCandidate, nPos, aX, nLen);
1016 skip_char(rCandidate, ' ', ',', nPos, nLen);
1017 SvgNumber aY;
1018 readNumberAndUnit(rCandidate, nPos, aY, nLen);
1019 skip_char(rCandidate, ' ', ')', nPos, nLen);
1020 skip_char(rCandidate, ' ', ',', nPos, nLen);
1021
1022 const double fX(aX.isSet() ? aX.solve(rInfoProvider, NumberType::xcoordinate) : 0.0);
1023 const double fY(aY.isSet() ? aY.solve(rInfoProvider, NumberType::ycoordinate) : 0.0);
1024
1025 if(!basegfx::fTools::equalZero(fX) || !basegfx::fTools::equalZero(fY))
1026 {
1027 // rotate around point
1028 aMatrix = aMatrix * basegfx::utils::createRotateAroundPoint(fX, fY, fAngle);
1029 }
1030 else
1031 {
1032 // rotate
1033 aMatrix = aMatrix * basegfx::utils::createRotateB2DHomMatrix(fAngle);
1034 }
1035 }
1036 }
1037 break;
1038 }
1039 }
1040
1041 if(nInitPos == nPos)
1042 {
1043 SAL_WARN("svgio", "Could not interpret on current position (!)");
1044 nPos++;
1045 }
1046 }
1047 }
1048
1049 return aMatrix;
1050 }
1051
1052 bool readSingleNumber(std::u16string_view rCandidate, SvgNumber& aNum)
1053 {
1054 const sal_Int32 nLen(rCandidate.size());
1055 sal_Int32 nPos(0);
1056
1057 return readNumberAndUnit(rCandidate, nPos, aNum, nLen);
1058 }
1059
1060 bool readLocalLink(std::u16string_view rCandidate, OUString& rURL)
1061 {
1062 sal_Int32 nPos(0);
1063 const sal_Int32 nLen(rCandidate.size());
1064
1065 skip_char(rCandidate, ' ', nPos, nLen);
1066
1067 if (nLen && nPos < nLen && '#' == rCandidate[nPos])
1068 {
1069 ++nPos;
1070 rURL = rCandidate.substr(nPos);
1071
1072 return true;
1073 }
1074
1075 return false;
1076 }
1077
1078 bool readLocalUrl(const OUString& rCandidate, OUString& rURL)
1079 {
1080 static const char aStrUrl[] = "url(";
1081
1082 if(rCandidate.startsWithIgnoreAsciiCase(aStrUrl))
1083 {
1084 const sal_Int32 nLen(rCandidate.getLength());
1085 sal_Int32 nPos(strlen(aStrUrl));
1086 sal_Unicode aLimiter(')');
1087
1088 skip_char(rCandidate, ' ', nPos, nLen);
1089
1090 if('"' == rCandidate[nPos])
1091 {
1092 aLimiter = '"';
1093 ++nPos;
1094 }
1095 else if('\'' == rCandidate[nPos])
1096 {
1097 aLimiter = '\'';
1098 ++nPos;
1099 }
1100
1101 skip_char(rCandidate, ' ', nPos, nLen);
1102 skip_char(rCandidate, '#', nPos, nPos + 1);
1103 OUStringBuffer aTokenValue;
1104
1105 copyToLimiter(rCandidate, aLimiter, nPos, aTokenValue, nLen);
1106
1107 rURL = aTokenValue.makeStringAndClear();
1108
1109 return true;
1110 }
1111
1112 return false;
1113 }
1114
1115 bool readSvgPaint(const OUString& rCandidate, SvgPaint& rSvgPaint,
1116 OUString& rURL, SvgNumber& rOpacity)
1117 {
1118 if( !rCandidate.isEmpty() )
1119 {
1120 basegfx::BColor aColor;
1121
1122 if(read_color(rCandidate, aColor, rOpacity))
1123 {
1124 rSvgPaint = SvgPaint(aColor, true, true);
1125 return true;
1126 }
1127 else
1128 {
1129 if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(rCandidate), u"none"))
1130 {
1131 rSvgPaint = SvgPaint(aColor, true, false, false);
1132 return true;
1133 }
1134 else if(readLocalUrl(rCandidate, rURL))
1135 {
1136 /// Url is copied to rURL, but needs to be solved outside this helper
1137 return false;
1138 }
1139 else if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(rCandidate), u"currentColor"))
1140 {
1141 rSvgPaint = SvgPaint(aColor, true, true, true);
1142 return true;
1143 }
1144 }
1145 }
1146
1147 return false;
1148 }
1149
1150 bool readSvgNumberVector(std::u16string_view rCandidate, SvgNumberVector& rSvgNumberVector)
1151 {
1152 const sal_Int32 nLen(rCandidate.size());
1153 rSvgNumberVector.clear();
1154
1155 if(nLen)
1156 {
1157 sal_Int32 nPos(0);
1158 SvgNumber aNum;
1159 skip_char(rCandidate, ' ', ',', nPos, nLen);
1160
1161 while(readNumberAndUnit(rCandidate, nPos, aNum, nLen))
1162 {
1163 rSvgNumberVector.push_back(aNum);
1164 skip_char(rCandidate, ' ', ',', nPos, nLen);
1165 }
1166
1167 return !rSvgNumberVector.empty();
1168 }
1169
1170 return false;
1171 }
1172
1173 SvgAspectRatio readSvgAspectRatio(std::u16string_view rCandidate)
1174 {
1175 const sal_Int32 nLen(rCandidate.size());
1176
1177 if(nLen)
1178 {
1179 sal_Int32 nPos(0);
1180 SvgAlign aSvgAlign(SvgAlign::xMidYMid);
1181 bool bMeetOrSlice(true);
1182 bool bChanged(false);
1183
1184 while(nPos < nLen)
1185 {
1186 const sal_Int32 nInitPos(nPos);
1187 skip_char(rCandidate, ' ', nPos, nLen);
1188 OUStringBuffer aTokenName;
1189 copyString(rCandidate, nPos, aTokenName, nLen);
1190
1191 if(!aTokenName.isEmpty())
1192 {
1193 switch(StrToSVGToken(aTokenName.makeStringAndClear(), false))
1194 {
1195 case SVGToken::Defer:
1196 {
1197 bChanged = true;
1198 break;
1199 }
1200 case SVGToken::None:
1201 {
1202 aSvgAlign = SvgAlign::none;
1203 bChanged = true;
1204 break;
1205 }
1206 case SVGToken::XMinYMin:
1207 {
1208 aSvgAlign = SvgAlign::xMinYMin;
1209 bChanged = true;
1210 break;
1211 }
1212 case SVGToken::XMidYMin:
1213 {
1214 aSvgAlign = SvgAlign::xMidYMin;
1215 bChanged = true;
1216 break;
1217 }
1218 case SVGToken::XMaxYMin:
1219 {
1220 aSvgAlign = SvgAlign::xMaxYMin;
1221 bChanged = true;
1222 break;
1223 }
1224 case SVGToken::XMinYMid:
1225 {
1226 aSvgAlign = SvgAlign::xMinYMid;
1227 bChanged = true;
1228 break;
1229 }
1230 case SVGToken::XMidYMid:
1231 {
1232 aSvgAlign = SvgAlign::xMidYMid;
1233 bChanged = true;
1234 break;
1235 }
1236 case SVGToken::XMaxYMid:
1237 {
1238 aSvgAlign = SvgAlign::xMaxYMid;
1239 bChanged = true;
1240 break;
1241 }
1242 case SVGToken::XMinYMax:
1243 {
1244 aSvgAlign = SvgAlign::xMinYMax;
1245 bChanged = true;
1246 break;
1247 }
1248 case SVGToken::XMidYMax:
1249 {
1250 aSvgAlign = SvgAlign::xMidYMax;
1251 bChanged = true;
1252 break;
1253 }
1254 case SVGToken::XMaxYMax:
1255 {
1256 aSvgAlign = SvgAlign::xMaxYMax;
1257 bChanged = true;
1258 break;
1259 }
1260 case SVGToken::Meet:
1261 {
1262 bMeetOrSlice = true;
1263 bChanged = true;
1264 break;
1265 }
1266 case SVGToken::Slice:
1267 {
1268 bMeetOrSlice = false;
1269 bChanged = true;
1270 break;
1271 }
1272 default:
1273 {
1274 break;
1275 }
1276 }
1277 }
1278
1279 if(nInitPos == nPos)
1280 {
1281 SAL_WARN("svgio", "Could not interpret on current position (!)");
1282 nPos++;
1283 }
1284 }
1285
1286 if(bChanged)
1287 {
1288 return SvgAspectRatio(aSvgAlign, bMeetOrSlice);
1289 }
1290 }
1291
1292 return SvgAspectRatio();
1293 }
1294
1295 bool readSvgStringVector(std::u16string_view rCandidate, SvgStringVector& rSvgStringVector)
1296 {
1297 rSvgStringVector.clear();
1298 const sal_Int32 nLen(rCandidate.size());
1299
1300 if(nLen)
1301 {
1302 sal_Int32 nPos(0);
1303 OUStringBuffer aTokenValue;
1304 skip_char(rCandidate, ' ', ',', nPos, nLen);
1305
1306 while(nPos < nLen)
1307 {
1308 copyToLimiter(rCandidate, ',', nPos, aTokenValue, nLen);
1309 skip_char(rCandidate, ',', ' ', nPos, nLen);
1310 const OUString aString = aTokenValue.makeStringAndClear();
1311
1312 if(!aString.isEmpty())
1313 {
1314 rSvgStringVector.push_back(aString);
1315 }
1316 }
1317 }
1318
1319 return !rSvgStringVector.empty();
1320 }
1321
1322 void readImageLink(const OUString& rCandidate, OUString& rXLink, OUString& rUrl, OUString& rMimeType, OUString& rData)
1323 {
1324 rXLink.clear();
1325 rUrl.clear();
1326 rMimeType.clear();
1327 rData.clear();
1328
1329 if(!readLocalLink(rCandidate, rXLink))
1330 {
1331 static const char aStrData[] = "data:";
1332
1333 if(rCandidate.matchIgnoreAsciiCase(aStrData, 0))
1334 {
1335 // embedded data
1336 sal_Int32 nPos(strlen(aStrData));
1337 sal_Int32 nLen(rCandidate.getLength());
1338 OUStringBuffer aBuffer;
1339
1340 // read mime type
1341 skip_char(rCandidate, ' ', nPos, nLen);
1342 copyToLimiter(rCandidate, ';', nPos, aBuffer, nLen);
1343 skip_char(rCandidate, ' ', ';', nPos, nLen);
1344 rMimeType = aBuffer.makeStringAndClear();
1345
1346 if(!rMimeType.isEmpty() && nPos < nLen)
1347 {
1348 if(rMimeType.startsWith("image"))
1349 {
1350 // image data
1351 std::u16string_view aData(rCandidate.subView(nPos));
1352 static constexpr std::u16string_view aStrBase64 = u"base64";
1353
1354 if(o3tl::starts_with(aData, aStrBase64))
1355 {
1356 // base64 encoded
1357 nPos = aStrBase64.size();
1358 nLen = aData.size();
1359
1360 skip_char(aData, ' ', ',', nPos, nLen);
1361
1362 if(nPos < nLen)
1363 {
1364 rData = aData.substr(nPos);
1365 }
1366 }
1367 }
1368 }
1369 }
1370 else
1371 {
1372 // Url (path and filename)
1373 rUrl = rCandidate;
1374 }
1375 }
1376 }
1377
1378 // #i125325#
1379 OUString removeBlockComments(const OUString& rCandidate)
1380 {
1381 const sal_Int32 nLen(rCandidate.getLength());
1382
1383 if(nLen)
1384 {
1385 sal_Int32 nPos(0);
1386 OUStringBuffer aBuffer;
1387 bool bChanged(false);
1388 sal_Int32 nInsideComment(0);
1389 const sal_Unicode aCommentSlash('/');
1390 const sal_Unicode aCommentStar('*');
1391
1392 while(nPos < nLen)
1393 {
1394 const sal_Unicode aChar(rCandidate[nPos]);
1395 const bool bStart(aCommentSlash == aChar && nPos + 1 < nLen && aCommentStar == rCandidate[nPos + 1]);
1396 const bool bEnd(aCommentStar == aChar && nPos + 1 < nLen && aCommentSlash == rCandidate[nPos + 1]);
1397
1398 if(bStart)
1399 {
1400 nPos += 2;
1401 nInsideComment++;
1402 bChanged = true;
1403 }
1404 else if(bEnd)
1405 {
1406 nPos += 2;
1407 nInsideComment--;
1408 }
1409 else
1410 {
1411 if(!nInsideComment)
1412 {
1413 aBuffer.append(aChar);
1414 }
1415
1416 nPos++;
1417 }
1418 }
1419
1420 if(bChanged)
1421 {
1422 return aBuffer.makeStringAndClear();
1423 }
1424 }
1425
1426 return rCandidate;
1427 }
1428
1429 OUString consolidateContiguousSpace(const OUString& rCandidate)
1430 {
1431 const sal_Int32 nLen(rCandidate.getLength());
1432
1433 if(nLen)
1434 {
1435 sal_Int32 nPos(0);
1436 OUStringBuffer aBuffer;
1437 bool bInsideSpace(false);
1438 const sal_Unicode aSpace(' ');
1439
1440 while(nPos < nLen)
1441 {
1442 const sal_Unicode aChar(rCandidate[nPos]);
1443
1444 if(aSpace == aChar)
1445 {
1446 bInsideSpace = true;
1447 }
1448 else
1449 {
1450 if(bInsideSpace)
1451 {
1452 bInsideSpace = false;
1453 aBuffer.append(aSpace);
1454 }
1455
1456 aBuffer.append(aChar);
1457 }
1458
1459 nPos++;
1460 }
1461
1462 if(bInsideSpace)
1463 {
1464 aBuffer.append(aSpace);
1465 }
1466
1467 if(aBuffer.getLength() != nLen)
1468 {
1469 return aBuffer.makeStringAndClear();
1470 }
1471 }
1472
1473 return rCandidate;
1474 }
1475
1476 ::std::vector< double > solveSvgNumberVector(const SvgNumberVector& rInput, const InfoProvider& rInfoProvider)
1477 {
1478 ::std::vector< double > aRetval;
1479
1480 if(!rInput.empty())
1481 {
1482 const double nCount(rInput.size());
1483 aRetval.reserve(nCount);
1484
1485 for(sal_uInt32 a(0); a < nCount; a++)
1486 {
1487 aRetval.push_back(rInput[a].solve(rInfoProvider));
1488 }
1489 }
1490
1491 return aRetval;
1492 }
1493
1494 } // end of namespace svgio::svgreader
1495
1496 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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