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ef416fc2 | 1 | //======================================================================== |
2 | // | |
3 | // Link.cc | |
4 | // | |
5 | // Copyright 1996-2003 Glyph & Cog, LLC | |
6 | // | |
7 | //======================================================================== | |
8 | ||
9 | #include <config.h> | |
10 | ||
11 | #ifdef USE_GCC_PRAGMAS | |
12 | #pragma implementation | |
13 | #endif | |
14 | ||
15 | #include <stddef.h> | |
16 | #include <string.h> | |
17 | #include "gmem.h" | |
18 | #include "GString.h" | |
19 | #include "Error.h" | |
20 | #include "Object.h" | |
21 | #include "Array.h" | |
22 | #include "Dict.h" | |
23 | #include "Link.h" | |
24 | ||
25 | //------------------------------------------------------------------------ | |
26 | // LinkAction | |
27 | //------------------------------------------------------------------------ | |
28 | ||
29 | LinkAction *LinkAction::parseDest(Object *obj) { | |
30 | LinkAction *action; | |
31 | ||
32 | action = new LinkGoTo(obj); | |
33 | if (!action->isOk()) { | |
34 | delete action; | |
35 | return NULL; | |
36 | } | |
37 | return action; | |
38 | } | |
39 | ||
40 | LinkAction *LinkAction::parseAction(Object *obj, GString *baseURI) { | |
41 | LinkAction *action; | |
42 | Object obj2, obj3, obj4; | |
43 | ||
44 | if (!obj->isDict()) { | |
45 | error(-1, "Bad annotation action"); | |
46 | return NULL; | |
47 | } | |
48 | ||
49 | obj->dictLookup("S", &obj2); | |
50 | ||
51 | // GoTo action | |
52 | if (obj2.isName("GoTo")) { | |
53 | obj->dictLookup("D", &obj3); | |
54 | action = new LinkGoTo(&obj3); | |
55 | obj3.free(); | |
56 | ||
57 | // GoToR action | |
58 | } else if (obj2.isName("GoToR")) { | |
59 | obj->dictLookup("F", &obj3); | |
60 | obj->dictLookup("D", &obj4); | |
61 | action = new LinkGoToR(&obj3, &obj4); | |
62 | obj3.free(); | |
63 | obj4.free(); | |
64 | ||
65 | // Launch action | |
66 | } else if (obj2.isName("Launch")) { | |
67 | action = new LinkLaunch(obj); | |
68 | ||
69 | // URI action | |
70 | } else if (obj2.isName("URI")) { | |
71 | obj->dictLookup("URI", &obj3); | |
72 | action = new LinkURI(&obj3, baseURI); | |
73 | obj3.free(); | |
74 | ||
75 | // Named action | |
76 | } else if (obj2.isName("Named")) { | |
77 | obj->dictLookup("N", &obj3); | |
78 | action = new LinkNamed(&obj3); | |
79 | obj3.free(); | |
80 | ||
81 | // Movie action | |
82 | } else if (obj2.isName("Movie")) { | |
83 | obj->dictLookupNF("Annot", &obj3); | |
84 | obj->dictLookup("T", &obj4); | |
85 | action = new LinkMovie(&obj3, &obj4); | |
86 | obj3.free(); | |
87 | obj4.free(); | |
88 | ||
89 | // unknown action | |
90 | } else if (obj2.isName()) { | |
91 | action = new LinkUnknown(obj2.getName()); | |
92 | ||
93 | // action is missing or wrong type | |
94 | } else { | |
95 | error(-1, "Bad annotation action"); | |
96 | action = NULL; | |
97 | } | |
98 | ||
99 | obj2.free(); | |
100 | ||
101 | if (action && !action->isOk()) { | |
102 | delete action; | |
103 | return NULL; | |
104 | } | |
105 | return action; | |
106 | } | |
107 | ||
108 | GString *LinkAction::getFileSpecName(Object *fileSpecObj) { | |
109 | GString *name; | |
110 | Object obj1; | |
111 | ||
112 | name = NULL; | |
113 | ||
114 | // string | |
115 | if (fileSpecObj->isString()) { | |
116 | name = fileSpecObj->getString()->copy(); | |
117 | ||
118 | // dictionary | |
119 | } else if (fileSpecObj->isDict()) { | |
120 | #ifdef WIN32 | |
121 | if (!fileSpecObj->dictLookup("DOS", &obj1)->isString()) { | |
122 | #else | |
123 | if (!fileSpecObj->dictLookup("Unix", &obj1)->isString()) { | |
124 | #endif | |
125 | obj1.free(); | |
126 | fileSpecObj->dictLookup("F", &obj1); | |
127 | } | |
128 | if (obj1.isString()) { | |
129 | name = obj1.getString()->copy(); | |
130 | } else { | |
131 | error(-1, "Illegal file spec in link"); | |
132 | } | |
133 | obj1.free(); | |
134 | ||
135 | // error | |
136 | } else { | |
137 | error(-1, "Illegal file spec in link"); | |
138 | } | |
139 | ||
140 | // system-dependent path manipulation | |
141 | if (name) { | |
142 | #ifdef WIN32 | |
143 | int i, j; | |
144 | ||
145 | // "//...." --> "\...." | |
146 | // "/x/...." --> "x:\...." | |
147 | // "/server/share/...." --> "\\server\share\...." | |
148 | // convert escaped slashes to slashes and unescaped slashes to backslashes | |
149 | i = 0; | |
150 | if (name->getChar(0) == '/') { | |
151 | if (name->getLength() >= 2 && name->getChar(1) == '/') { | |
152 | name->del(0); | |
153 | i = 0; | |
154 | } else if (name->getLength() >= 2 && | |
155 | ((name->getChar(1) >= 'a' && name->getChar(1) <= 'z') || | |
156 | (name->getChar(1) >= 'A' && name->getChar(1) <= 'Z')) && | |
157 | (name->getLength() == 2 || name->getChar(2) == '/')) { | |
158 | name->setChar(0, name->getChar(1)); | |
159 | name->setChar(1, ':'); | |
160 | i = 2; | |
161 | } else { | |
162 | for (j = 2; j < name->getLength(); ++j) { | |
163 | if (name->getChar(j-1) != '\\' && | |
164 | name->getChar(j) == '/') { | |
165 | break; | |
166 | } | |
167 | } | |
168 | if (j < name->getLength()) { | |
169 | name->setChar(0, '\\'); | |
170 | name->insert(0, '\\'); | |
171 | i = 2; | |
172 | } | |
173 | } | |
174 | } | |
175 | for (; i < name->getLength(); ++i) { | |
176 | if (name->getChar(i) == '/') { | |
177 | name->setChar(i, '\\'); | |
178 | } else if (name->getChar(i) == '\\' && | |
179 | i+1 < name->getLength() && | |
180 | name->getChar(i+1) == '/') { | |
181 | name->del(i); | |
182 | } | |
183 | } | |
184 | #else | |
185 | // no manipulation needed for Unix | |
186 | #endif | |
187 | } | |
188 | ||
189 | return name; | |
190 | } | |
191 | ||
192 | //------------------------------------------------------------------------ | |
193 | // LinkDest | |
194 | //------------------------------------------------------------------------ | |
195 | ||
196 | LinkDest::LinkDest(Array *a) { | |
197 | Object obj1, obj2; | |
198 | ||
199 | // initialize fields | |
200 | left = bottom = right = top = zoom = 0; | |
201 | ok = gFalse; | |
202 | ||
203 | // get page | |
204 | if (a->getLength() < 2) { | |
205 | error(-1, "Annotation destination array is too short"); | |
206 | return; | |
207 | } | |
208 | a->getNF(0, &obj1); | |
209 | if (obj1.isInt()) { | |
210 | pageNum = obj1.getInt() + 1; | |
211 | pageIsRef = gFalse; | |
212 | } else if (obj1.isRef()) { | |
213 | pageRef.num = obj1.getRefNum(); | |
214 | pageRef.gen = obj1.getRefGen(); | |
215 | pageIsRef = gTrue; | |
216 | } else { | |
217 | error(-1, "Bad annotation destination"); | |
218 | goto err2; | |
219 | } | |
220 | obj1.free(); | |
221 | ||
222 | // get destination type | |
223 | a->get(1, &obj1); | |
224 | ||
225 | // XYZ link | |
226 | if (obj1.isName("XYZ")) { | |
227 | kind = destXYZ; | |
228 | if (a->getLength() < 3) { | |
229 | changeLeft = gFalse; | |
230 | } else { | |
231 | a->get(2, &obj2); | |
232 | if (obj2.isNull()) { | |
233 | changeLeft = gFalse; | |
234 | } else if (obj2.isNum()) { | |
235 | changeLeft = gTrue; | |
236 | left = obj2.getNum(); | |
237 | } else { | |
238 | error(-1, "Bad annotation destination position"); | |
239 | goto err1; | |
240 | } | |
241 | obj2.free(); | |
242 | } | |
243 | if (a->getLength() < 4) { | |
244 | changeTop = gFalse; | |
245 | } else { | |
246 | a->get(3, &obj2); | |
247 | if (obj2.isNull()) { | |
248 | changeTop = gFalse; | |
249 | } else if (obj2.isNum()) { | |
250 | changeTop = gTrue; | |
251 | top = obj2.getNum(); | |
252 | } else { | |
253 | error(-1, "Bad annotation destination position"); | |
254 | goto err1; | |
255 | } | |
256 | obj2.free(); | |
257 | } | |
258 | if (a->getLength() < 5) { | |
259 | changeZoom = gFalse; | |
260 | } else { | |
261 | a->get(4, &obj2); | |
262 | if (obj2.isNull()) { | |
263 | changeZoom = gFalse; | |
264 | } else if (obj2.isNum()) { | |
265 | changeZoom = gTrue; | |
266 | zoom = obj2.getNum(); | |
267 | } else { | |
268 | error(-1, "Bad annotation destination position"); | |
269 | goto err1; | |
270 | } | |
271 | obj2.free(); | |
272 | } | |
273 | ||
274 | // Fit link | |
275 | } else if (obj1.isName("Fit")) { | |
276 | if (a->getLength() < 2) { | |
277 | error(-1, "Annotation destination array is too short"); | |
278 | goto err2; | |
279 | } | |
280 | kind = destFit; | |
281 | ||
282 | // FitH link | |
283 | } else if (obj1.isName("FitH")) { | |
284 | if (a->getLength() < 3) { | |
285 | error(-1, "Annotation destination array is too short"); | |
286 | goto err2; | |
287 | } | |
288 | kind = destFitH; | |
289 | if (!a->get(2, &obj2)->isNum()) { | |
290 | error(-1, "Bad annotation destination position"); | |
291 | goto err1; | |
292 | } | |
293 | top = obj2.getNum(); | |
294 | obj2.free(); | |
295 | ||
296 | // FitV link | |
297 | } else if (obj1.isName("FitV")) { | |
298 | if (a->getLength() < 3) { | |
299 | error(-1, "Annotation destination array is too short"); | |
300 | goto err2; | |
301 | } | |
302 | kind = destFitV; | |
303 | if (!a->get(2, &obj2)->isNum()) { | |
304 | error(-1, "Bad annotation destination position"); | |
305 | goto err1; | |
306 | } | |
307 | left = obj2.getNum(); | |
308 | obj2.free(); | |
309 | ||
310 | // FitR link | |
311 | } else if (obj1.isName("FitR")) { | |
312 | if (a->getLength() < 6) { | |
313 | error(-1, "Annotation destination array is too short"); | |
314 | goto err2; | |
315 | } | |
316 | kind = destFitR; | |
317 | if (!a->get(2, &obj2)->isNum()) { | |
318 | error(-1, "Bad annotation destination position"); | |
319 | goto err1; | |
320 | } | |
321 | left = obj2.getNum(); | |
322 | obj2.free(); | |
323 | if (!a->get(3, &obj2)->isNum()) { | |
324 | error(-1, "Bad annotation destination position"); | |
325 | goto err1; | |
326 | } | |
327 | bottom = obj2.getNum(); | |
328 | obj2.free(); | |
329 | if (!a->get(4, &obj2)->isNum()) { | |
330 | error(-1, "Bad annotation destination position"); | |
331 | goto err1; | |
332 | } | |
333 | right = obj2.getNum(); | |
334 | obj2.free(); | |
335 | if (!a->get(5, &obj2)->isNum()) { | |
336 | error(-1, "Bad annotation destination position"); | |
337 | goto err1; | |
338 | } | |
339 | top = obj2.getNum(); | |
340 | obj2.free(); | |
341 | ||
342 | // FitB link | |
343 | } else if (obj1.isName("FitB")) { | |
344 | if (a->getLength() < 2) { | |
345 | error(-1, "Annotation destination array is too short"); | |
346 | goto err2; | |
347 | } | |
348 | kind = destFitB; | |
349 | ||
350 | // FitBH link | |
351 | } else if (obj1.isName("FitBH")) { | |
352 | if (a->getLength() < 3) { | |
353 | error(-1, "Annotation destination array is too short"); | |
354 | goto err2; | |
355 | } | |
356 | kind = destFitBH; | |
357 | if (!a->get(2, &obj2)->isNum()) { | |
358 | error(-1, "Bad annotation destination position"); | |
359 | goto err1; | |
360 | } | |
361 | top = obj2.getNum(); | |
362 | obj2.free(); | |
363 | ||
364 | // FitBV link | |
365 | } else if (obj1.isName("FitBV")) { | |
366 | if (a->getLength() < 3) { | |
367 | error(-1, "Annotation destination array is too short"); | |
368 | goto err2; | |
369 | } | |
370 | kind = destFitBV; | |
371 | if (!a->get(2, &obj2)->isNum()) { | |
372 | error(-1, "Bad annotation destination position"); | |
373 | goto err1; | |
374 | } | |
375 | left = obj2.getNum(); | |
376 | obj2.free(); | |
377 | ||
378 | // unknown link kind | |
379 | } else { | |
380 | error(-1, "Unknown annotation destination type"); | |
381 | goto err2; | |
382 | } | |
383 | ||
384 | obj1.free(); | |
385 | ok = gTrue; | |
386 | return; | |
387 | ||
388 | err1: | |
389 | obj2.free(); | |
390 | err2: | |
391 | obj1.free(); | |
392 | } | |
393 | ||
394 | LinkDest::LinkDest(LinkDest *dest) { | |
395 | kind = dest->kind; | |
396 | pageIsRef = dest->pageIsRef; | |
397 | if (pageIsRef) | |
398 | pageRef = dest->pageRef; | |
399 | else | |
400 | pageNum = dest->pageNum; | |
401 | left = dest->left; | |
402 | bottom = dest->bottom; | |
403 | right = dest->right; | |
404 | top = dest->top; | |
405 | zoom = dest->zoom; | |
406 | changeLeft = dest->changeLeft; | |
407 | changeTop = dest->changeTop; | |
408 | changeZoom = dest->changeZoom; | |
409 | ok = gTrue; | |
410 | } | |
411 | ||
412 | //------------------------------------------------------------------------ | |
413 | // LinkGoTo | |
414 | //------------------------------------------------------------------------ | |
415 | ||
416 | LinkGoTo::LinkGoTo(Object *destObj) { | |
417 | dest = NULL; | |
418 | namedDest = NULL; | |
419 | ||
420 | // named destination | |
421 | if (destObj->isName()) { | |
422 | namedDest = new GString(destObj->getName()); | |
423 | } else if (destObj->isString()) { | |
424 | namedDest = destObj->getString()->copy(); | |
425 | ||
426 | // destination dictionary | |
427 | } else if (destObj->isArray()) { | |
428 | dest = new LinkDest(destObj->getArray()); | |
429 | if (!dest->isOk()) { | |
430 | delete dest; | |
431 | dest = NULL; | |
432 | } | |
433 | ||
434 | // error | |
435 | } else { | |
436 | error(-1, "Illegal annotation destination"); | |
437 | } | |
438 | } | |
439 | ||
440 | LinkGoTo::~LinkGoTo() { | |
441 | if (dest) | |
442 | delete dest; | |
443 | if (namedDest) | |
444 | delete namedDest; | |
445 | } | |
446 | ||
447 | //------------------------------------------------------------------------ | |
448 | // LinkGoToR | |
449 | //------------------------------------------------------------------------ | |
450 | ||
451 | LinkGoToR::LinkGoToR(Object *fileSpecObj, Object *destObj) { | |
452 | dest = NULL; | |
453 | namedDest = NULL; | |
454 | ||
455 | // get file name | |
456 | fileName = getFileSpecName(fileSpecObj); | |
457 | ||
458 | // named destination | |
459 | if (destObj->isName()) { | |
460 | namedDest = new GString(destObj->getName()); | |
461 | } else if (destObj->isString()) { | |
462 | namedDest = destObj->getString()->copy(); | |
463 | ||
464 | // destination dictionary | |
465 | } else if (destObj->isArray()) { | |
466 | dest = new LinkDest(destObj->getArray()); | |
467 | if (!dest->isOk()) { | |
468 | delete dest; | |
469 | dest = NULL; | |
470 | } | |
471 | ||
472 | // error | |
473 | } else { | |
474 | error(-1, "Illegal annotation destination"); | |
475 | } | |
476 | } | |
477 | ||
478 | LinkGoToR::~LinkGoToR() { | |
479 | if (fileName) | |
480 | delete fileName; | |
481 | if (dest) | |
482 | delete dest; | |
483 | if (namedDest) | |
484 | delete namedDest; | |
485 | } | |
486 | ||
487 | ||
488 | //------------------------------------------------------------------------ | |
489 | // LinkLaunch | |
490 | //------------------------------------------------------------------------ | |
491 | ||
492 | LinkLaunch::LinkLaunch(Object *actionObj) { | |
493 | Object obj1, obj2; | |
494 | ||
495 | fileName = NULL; | |
496 | params = NULL; | |
497 | ||
498 | if (actionObj->isDict()) { | |
499 | if (!actionObj->dictLookup("F", &obj1)->isNull()) { | |
500 | fileName = getFileSpecName(&obj1); | |
501 | } else { | |
502 | obj1.free(); | |
503 | #ifdef WIN32 | |
504 | if (actionObj->dictLookup("Win", &obj1)->isDict()) { | |
505 | obj1.dictLookup("F", &obj2); | |
506 | fileName = getFileSpecName(&obj2); | |
507 | obj2.free(); | |
508 | if (obj1.dictLookup("P", &obj2)->isString()) { | |
509 | params = obj2.getString()->copy(); | |
510 | } | |
511 | obj2.free(); | |
512 | } else { | |
513 | error(-1, "Bad launch-type link action"); | |
514 | } | |
515 | #else | |
516 | //~ This hasn't been defined by Adobe yet, so assume it looks | |
517 | //~ just like the Win dictionary until they say otherwise. | |
518 | if (actionObj->dictLookup("Unix", &obj1)->isDict()) { | |
519 | obj1.dictLookup("F", &obj2); | |
520 | fileName = getFileSpecName(&obj2); | |
521 | obj2.free(); | |
522 | if (obj1.dictLookup("P", &obj2)->isString()) { | |
523 | params = obj2.getString()->copy(); | |
524 | } | |
525 | obj2.free(); | |
526 | } else { | |
527 | error(-1, "Bad launch-type link action"); | |
528 | } | |
529 | #endif | |
530 | } | |
531 | obj1.free(); | |
532 | } | |
533 | } | |
534 | ||
535 | LinkLaunch::~LinkLaunch() { | |
536 | if (fileName) | |
537 | delete fileName; | |
538 | if (params) | |
539 | delete params; | |
540 | } | |
541 | ||
542 | //------------------------------------------------------------------------ | |
543 | // LinkURI | |
544 | //------------------------------------------------------------------------ | |
545 | ||
546 | LinkURI::LinkURI(Object *uriObj, GString *baseURI) { | |
547 | GString *uri2; | |
548 | int n; | |
549 | char c; | |
550 | ||
551 | uri = NULL; | |
552 | if (uriObj->isString()) { | |
553 | uri2 = uriObj->getString()->copy(); | |
554 | if (baseURI && baseURI->getLength() > 0) { | |
555 | n = strcspn(uri2->getCString(), "/:"); | |
556 | if (n == uri2->getLength() || uri2->getChar(n) == '/') { | |
557 | uri = baseURI->copy(); | |
558 | c = uri->getChar(uri->getLength() - 1); | |
559 | if (c == '/' || c == '?') { | |
560 | if (uri2->getChar(0) == '/') { | |
561 | uri2->del(0); | |
562 | } | |
563 | } else { | |
564 | if (uri2->getChar(0) != '/') { | |
565 | uri->append('/'); | |
566 | } | |
567 | } | |
568 | uri->append(uri2); | |
569 | delete uri2; | |
570 | } else { | |
571 | uri = uri2; | |
572 | } | |
573 | } else { | |
574 | uri = uri2; | |
575 | } | |
576 | } else { | |
577 | error(-1, "Illegal URI-type link"); | |
578 | } | |
579 | } | |
580 | ||
581 | LinkURI::~LinkURI() { | |
582 | if (uri) | |
583 | delete uri; | |
584 | } | |
585 | ||
586 | //------------------------------------------------------------------------ | |
587 | // LinkNamed | |
588 | //------------------------------------------------------------------------ | |
589 | ||
590 | LinkNamed::LinkNamed(Object *nameObj) { | |
591 | name = NULL; | |
592 | if (nameObj->isName()) { | |
593 | name = new GString(nameObj->getName()); | |
594 | } | |
595 | } | |
596 | ||
597 | LinkNamed::~LinkNamed() { | |
598 | if (name) { | |
599 | delete name; | |
600 | } | |
601 | } | |
602 | ||
603 | //------------------------------------------------------------------------ | |
604 | // LinkMovie | |
605 | //------------------------------------------------------------------------ | |
606 | ||
607 | LinkMovie::LinkMovie(Object *annotObj, Object *titleObj) { | |
608 | annotRef.num = -1; | |
609 | title = NULL; | |
610 | if (annotObj->isRef()) { | |
611 | annotRef = annotObj->getRef(); | |
612 | } else if (titleObj->isString()) { | |
613 | title = titleObj->getString()->copy(); | |
614 | } else { | |
615 | error(-1, "Movie action is missing both the Annot and T keys"); | |
616 | } | |
617 | } | |
618 | ||
619 | LinkMovie::~LinkMovie() { | |
620 | if (title) { | |
621 | delete title; | |
622 | } | |
623 | } | |
624 | ||
625 | //------------------------------------------------------------------------ | |
626 | // LinkUnknown | |
627 | //------------------------------------------------------------------------ | |
628 | ||
629 | LinkUnknown::LinkUnknown(char *actionA) { | |
630 | action = new GString(actionA); | |
631 | } | |
632 | ||
633 | LinkUnknown::~LinkUnknown() { | |
634 | delete action; | |
635 | } | |
636 | ||
637 | //------------------------------------------------------------------------ | |
638 | // LinkBorderStyle | |
639 | //------------------------------------------------------------------------ | |
640 | ||
641 | LinkBorderStyle::LinkBorderStyle(LinkBorderType typeA, double widthA, | |
642 | double *dashA, int dashLengthA, | |
643 | double rA, double gA, double bA) { | |
644 | type = typeA; | |
645 | width = widthA; | |
646 | dash = dashA; | |
647 | dashLength = dashLengthA; | |
648 | r = rA; | |
649 | g = gA; | |
650 | b = bA; | |
651 | } | |
652 | ||
653 | LinkBorderStyle::~LinkBorderStyle() { | |
654 | if (dash) { | |
655 | gfree(dash); | |
656 | } | |
657 | } | |
658 | ||
659 | //------------------------------------------------------------------------ | |
660 | // Link | |
661 | //------------------------------------------------------------------------ | |
662 | ||
663 | Link::Link(Dict *dict, GString *baseURI) { | |
664 | Object obj1, obj2, obj3; | |
665 | LinkBorderType borderType; | |
666 | double borderWidth; | |
667 | double *borderDash; | |
668 | int borderDashLength; | |
669 | double borderR, borderG, borderB; | |
670 | double t; | |
671 | int i; | |
672 | ||
673 | borderStyle = NULL; | |
674 | action = NULL; | |
675 | ok = gFalse; | |
676 | ||
677 | // get rectangle | |
678 | if (!dict->lookup("Rect", &obj1)->isArray()) { | |
679 | error(-1, "Annotation rectangle is wrong type"); | |
680 | goto err2; | |
681 | } | |
682 | if (!obj1.arrayGet(0, &obj2)->isNum()) { | |
683 | error(-1, "Bad annotation rectangle"); | |
684 | goto err1; | |
685 | } | |
686 | x1 = obj2.getNum(); | |
687 | obj2.free(); | |
688 | if (!obj1.arrayGet(1, &obj2)->isNum()) { | |
689 | error(-1, "Bad annotation rectangle"); | |
690 | goto err1; | |
691 | } | |
692 | y1 = obj2.getNum(); | |
693 | obj2.free(); | |
694 | if (!obj1.arrayGet(2, &obj2)->isNum()) { | |
695 | error(-1, "Bad annotation rectangle"); | |
696 | goto err1; | |
697 | } | |
698 | x2 = obj2.getNum(); | |
699 | obj2.free(); | |
700 | if (!obj1.arrayGet(3, &obj2)->isNum()) { | |
701 | error(-1, "Bad annotation rectangle"); | |
702 | goto err1; | |
703 | } | |
704 | y2 = obj2.getNum(); | |
705 | obj2.free(); | |
706 | obj1.free(); | |
707 | if (x1 > x2) { | |
708 | t = x1; | |
709 | x1 = x2; | |
710 | x2 = t; | |
711 | } | |
712 | if (y1 > y2) { | |
713 | t = y1; | |
714 | y1 = y2; | |
715 | y2 = t; | |
716 | } | |
717 | ||
718 | // get the border style info | |
719 | borderType = linkBorderSolid; | |
720 | borderWidth = 1; | |
721 | borderDash = NULL; | |
722 | borderDashLength = 0; | |
723 | borderR = 0; | |
724 | borderG = 0; | |
725 | borderB = 1; | |
726 | if (dict->lookup("BS", &obj1)->isDict()) { | |
727 | if (obj1.dictLookup("S", &obj2)->isName()) { | |
728 | if (obj2.isName("S")) { | |
729 | borderType = linkBorderSolid; | |
730 | } else if (obj2.isName("D")) { | |
731 | borderType = linkBorderDashed; | |
732 | } else if (obj2.isName("B")) { | |
733 | borderType = linkBorderEmbossed; | |
734 | } else if (obj2.isName("I")) { | |
735 | borderType = linkBorderEngraved; | |
736 | } else if (obj2.isName("U")) { | |
737 | borderType = linkBorderUnderlined; | |
738 | } | |
739 | } | |
740 | obj2.free(); | |
741 | if (obj1.dictLookup("W", &obj2)->isNum()) { | |
742 | borderWidth = obj2.getNum(); | |
743 | } | |
744 | obj2.free(); | |
745 | if (obj1.dictLookup("D", &obj2)->isArray()) { | |
746 | borderDashLength = obj2.arrayGetLength(); | |
747 | borderDash = (double *)gmallocn(borderDashLength, sizeof(double)); | |
748 | for (i = 0; i < borderDashLength; ++i) { | |
749 | if (obj2.arrayGet(i, &obj3)->isNum()) { | |
750 | borderDash[i] = obj3.getNum(); | |
751 | } else { | |
752 | borderDash[i] = 1; | |
753 | } | |
754 | obj3.free(); | |
755 | } | |
756 | } | |
757 | obj2.free(); | |
758 | } else { | |
759 | obj1.free(); | |
760 | if (dict->lookup("Border", &obj1)->isArray()) { | |
761 | if (obj1.arrayGetLength() >= 3) { | |
762 | if (obj1.arrayGet(2, &obj2)->isNum()) { | |
763 | borderWidth = obj2.getNum(); | |
764 | } | |
765 | obj2.free(); | |
766 | if (obj1.arrayGetLength() >= 4) { | |
767 | if (obj1.arrayGet(3, &obj2)->isArray()) { | |
768 | borderType = linkBorderDashed; | |
769 | borderDashLength = obj2.arrayGetLength(); | |
770 | borderDash = (double *)gmallocn(borderDashLength, sizeof(double)); | |
771 | for (i = 0; i < borderDashLength; ++i) { | |
772 | if (obj2.arrayGet(i, &obj3)->isNum()) { | |
773 | borderDash[i] = obj3.getNum(); | |
774 | } else { | |
775 | borderDash[i] = 1; | |
776 | } | |
777 | obj3.free(); | |
778 | } | |
779 | } else { | |
780 | // Adobe draws no border at all if the last element is of | |
781 | // the wrong type. | |
782 | borderWidth = 0; | |
783 | } | |
784 | obj2.free(); | |
785 | } | |
786 | } | |
787 | } | |
788 | } | |
789 | obj1.free(); | |
790 | if (dict->lookup("C", &obj1)->isArray() && obj1.arrayGetLength() == 3) { | |
791 | if (obj1.arrayGet(0, &obj2)->isNum()) { | |
792 | borderR = obj2.getNum(); | |
793 | } | |
794 | obj1.free(); | |
795 | if (obj1.arrayGet(1, &obj2)->isNum()) { | |
796 | borderG = obj2.getNum(); | |
797 | } | |
798 | obj1.free(); | |
799 | if (obj1.arrayGet(2, &obj2)->isNum()) { | |
800 | borderB = obj2.getNum(); | |
801 | } | |
802 | obj1.free(); | |
803 | } | |
804 | obj1.free(); | |
805 | borderStyle = new LinkBorderStyle(borderType, borderWidth, | |
806 | borderDash, borderDashLength, | |
807 | borderR, borderG, borderB); | |
808 | ||
809 | // look for destination | |
810 | if (!dict->lookup("Dest", &obj1)->isNull()) { | |
811 | action = LinkAction::parseDest(&obj1); | |
812 | ||
813 | // look for action | |
814 | } else { | |
815 | obj1.free(); | |
816 | if (dict->lookup("A", &obj1)->isDict()) { | |
817 | action = LinkAction::parseAction(&obj1, baseURI); | |
818 | } | |
819 | } | |
820 | obj1.free(); | |
821 | ||
822 | // check for bad action | |
823 | if (action) { | |
824 | ok = gTrue; | |
825 | } | |
826 | ||
827 | return; | |
828 | ||
829 | err1: | |
830 | obj2.free(); | |
831 | err2: | |
832 | obj1.free(); | |
833 | } | |
834 | ||
835 | Link::~Link() { | |
836 | if (borderStyle) { | |
837 | delete borderStyle; | |
838 | } | |
839 | if (action) { | |
840 | delete action; | |
841 | } | |
842 | } | |
843 | ||
844 | //------------------------------------------------------------------------ | |
845 | // Links | |
846 | //------------------------------------------------------------------------ | |
847 | ||
848 | Links::Links(Object *annots, GString *baseURI) { | |
849 | Link *link; | |
850 | Object obj1, obj2; | |
851 | int size; | |
852 | int i; | |
853 | ||
854 | links = NULL; | |
855 | size = 0; | |
856 | numLinks = 0; | |
857 | ||
858 | if (annots->isArray()) { | |
859 | for (i = 0; i < annots->arrayGetLength(); ++i) { | |
860 | if (annots->arrayGet(i, &obj1)->isDict()) { | |
861 | if (obj1.dictLookup("Subtype", &obj2)->isName("Link")) { | |
862 | link = new Link(obj1.getDict(), baseURI); | |
863 | if (link->isOk()) { | |
864 | if (numLinks >= size) { | |
865 | size += 16; | |
866 | links = (Link **)greallocn(links, size, sizeof(Link *)); | |
867 | } | |
868 | links[numLinks++] = link; | |
869 | } else { | |
870 | delete link; | |
871 | } | |
872 | } | |
873 | obj2.free(); | |
874 | } | |
875 | obj1.free(); | |
876 | } | |
877 | } | |
878 | } | |
879 | ||
880 | Links::~Links() { | |
881 | int i; | |
882 | ||
883 | for (i = 0; i < numLinks; ++i) | |
884 | delete links[i]; | |
885 | gfree(links); | |
886 | } | |
887 | ||
888 | LinkAction *Links::find(double x, double y) { | |
889 | int i; | |
890 | ||
891 | for (i = numLinks - 1; i >= 0; --i) { | |
892 | if (links[i]->inRect(x, y)) { | |
893 | return links[i]->getAction(); | |
894 | } | |
895 | } | |
896 | return NULL; | |
897 | } | |
898 | ||
899 | GBool Links::onLink(double x, double y) { | |
900 | int i; | |
901 | ||
902 | for (i = 0; i < numLinks; ++i) { | |
903 | if (links[i]->inRect(x, y)) | |
904 | return gTrue; | |
905 | } | |
906 | return gFalse; | |
907 | } |