|
1 <?php |
|
2 /** |
|
3 * Zend Framework |
|
4 * |
|
5 * LICENSE |
|
6 * |
|
7 * This source file is subject to the new BSD license that is bundled |
|
8 * with this package in the file LICENSE.txt. |
|
9 * It is also available through the world-wide-web at this URL: |
|
10 * http://framework.zend.com/license/new-bsd |
|
11 * If you did not receive a copy of the license and are unable to |
|
12 * obtain it through the world-wide-web, please send an email |
|
13 * to license@zend.com so we can send you a copy immediately. |
|
14 * |
|
15 * @category Zend |
|
16 * @package Zend_Pdf |
|
17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
|
18 * @license http://framework.zend.com/license/new-bsd New BSD License |
|
19 * @version $Id: Page.php 22909 2010-08-27 19:57:48Z alexander $ |
|
20 */ |
|
21 |
|
22 /** Internally used classes */ |
|
23 require_once 'Zend/Pdf/Element.php'; |
|
24 require_once 'Zend/Pdf/Element/Array.php'; |
|
25 require_once 'Zend/Pdf/Element/String/Binary.php'; |
|
26 require_once 'Zend/Pdf/Element/Boolean.php'; |
|
27 require_once 'Zend/Pdf/Element/Dictionary.php'; |
|
28 require_once 'Zend/Pdf/Element/Name.php'; |
|
29 require_once 'Zend/Pdf/Element/Null.php'; |
|
30 require_once 'Zend/Pdf/Element/Numeric.php'; |
|
31 require_once 'Zend/Pdf/Element/String.php'; |
|
32 require_once 'Zend/Pdf/Resource/Unified.php'; |
|
33 |
|
34 require_once 'Zend/Pdf/Canvas/Abstract.php'; |
|
35 |
|
36 |
|
37 /** |
|
38 * PDF Page |
|
39 * |
|
40 * @package Zend_Pdf |
|
41 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
|
42 * @license http://framework.zend.com/license/new-bsd New BSD License |
|
43 */ |
|
44 class Zend_Pdf_Page extends Zend_Pdf_Canvas_Abstract |
|
45 { |
|
46 /**** Class Constants ****/ |
|
47 |
|
48 |
|
49 /* Page Sizes */ |
|
50 |
|
51 /** |
|
52 * Size representing an A4 page in portrait (tall) orientation. |
|
53 */ |
|
54 const SIZE_A4 = '595:842:'; |
|
55 |
|
56 /** |
|
57 * Size representing an A4 page in landscape (wide) orientation. |
|
58 */ |
|
59 const SIZE_A4_LANDSCAPE = '842:595:'; |
|
60 |
|
61 /** |
|
62 * Size representing a US Letter page in portrait (tall) orientation. |
|
63 */ |
|
64 const SIZE_LETTER = '612:792:'; |
|
65 |
|
66 /** |
|
67 * Size representing a US Letter page in landscape (wide) orientation. |
|
68 */ |
|
69 const SIZE_LETTER_LANDSCAPE = '792:612:'; |
|
70 |
|
71 |
|
72 /* Shape Drawing */ |
|
73 |
|
74 /** |
|
75 * Stroke the path only. Do not fill. |
|
76 */ |
|
77 const SHAPE_DRAW_STROKE = 0; |
|
78 |
|
79 /** |
|
80 * Fill the path only. Do not stroke. |
|
81 */ |
|
82 const SHAPE_DRAW_FILL = 1; |
|
83 |
|
84 /** |
|
85 * Fill and stroke the path. |
|
86 */ |
|
87 const SHAPE_DRAW_FILL_AND_STROKE = 2; |
|
88 |
|
89 |
|
90 /* Shape Filling Methods */ |
|
91 |
|
92 /** |
|
93 * Fill the path using the non-zero winding rule. |
|
94 */ |
|
95 const FILL_METHOD_NON_ZERO_WINDING = 0; |
|
96 |
|
97 /** |
|
98 * Fill the path using the even-odd rule. |
|
99 */ |
|
100 const FILL_METHOD_EVEN_ODD = 1; |
|
101 |
|
102 |
|
103 /* Line Dash Types */ |
|
104 |
|
105 /** |
|
106 * Solid line dash. |
|
107 */ |
|
108 const LINE_DASHING_SOLID = 0; |
|
109 |
|
110 |
|
111 |
|
112 /** |
|
113 * Page dictionary (refers to an inderect Zend_Pdf_Element_Dictionary object). |
|
114 * |
|
115 * @var Zend_Pdf_Element_Reference|Zend_Pdf_Element_Object |
|
116 */ |
|
117 protected $_dictionary; |
|
118 |
|
119 /** |
|
120 * PDF objects factory. |
|
121 * |
|
122 * @var Zend_Pdf_ElementFactory_Interface |
|
123 */ |
|
124 protected $_objFactory = null; |
|
125 |
|
126 /** |
|
127 * Flag which signals, that page is created separately from any PDF document or |
|
128 * attached to anyone. |
|
129 * |
|
130 * @var boolean |
|
131 */ |
|
132 protected $_attached; |
|
133 |
|
134 /** |
|
135 * Safe Graphics State semafore |
|
136 * |
|
137 * If it's false, than we can't be sure Graphics State is restored withing |
|
138 * context of previous contents stream (ex. drawing coordinate system may be rotated). |
|
139 * We should encompass existing content with save/restore GS operators |
|
140 * |
|
141 * @var boolean |
|
142 */ |
|
143 protected $_safeGS; |
|
144 |
|
145 /** |
|
146 * Object constructor. |
|
147 * Constructor signatures: |
|
148 * |
|
149 * 1. Load PDF page from a parsed PDF file. |
|
150 * Object factory is created by PDF parser. |
|
151 * --------------------------------------------------------- |
|
152 * new Zend_Pdf_Page(Zend_Pdf_Element_Dictionary $pageDict, |
|
153 * Zend_Pdf_ElementFactory_Interface $factory); |
|
154 * --------------------------------------------------------- |
|
155 * |
|
156 * 2. Make a copy of the PDF page. |
|
157 * New page is created in the same context as source page. Object factory is shared. |
|
158 * Thus it will be attached to the document, but need to be placed into Zend_Pdf::$pages array |
|
159 * to be included into output. |
|
160 * --------------------------------------------------------- |
|
161 * new Zend_Pdf_Page(Zend_Pdf_Page $page); |
|
162 * --------------------------------------------------------- |
|
163 * |
|
164 * 3. Create new page with a specified pagesize. |
|
165 * If $factory is null then it will be created and page must be attached to the document to be |
|
166 * included into output. |
|
167 * --------------------------------------------------------- |
|
168 * new Zend_Pdf_Page(string $pagesize, Zend_Pdf_ElementFactory_Interface $factory = null); |
|
169 * --------------------------------------------------------- |
|
170 * |
|
171 * 4. Create new page with a specified pagesize (in default user space units). |
|
172 * If $factory is null then it will be created and page must be attached to the document to be |
|
173 * included into output. |
|
174 * --------------------------------------------------------- |
|
175 * new Zend_Pdf_Page(numeric $width, numeric $height, Zend_Pdf_ElementFactory_Interface $factory = null); |
|
176 * --------------------------------------------------------- |
|
177 * |
|
178 * |
|
179 * @param mixed $param1 |
|
180 * @param mixed $param2 |
|
181 * @param mixed $param3 |
|
182 * @throws Zend_Pdf_Exception |
|
183 */ |
|
184 public function __construct($param1, $param2 = null, $param3 = null) |
|
185 { |
|
186 if (($param1 instanceof Zend_Pdf_Element_Reference || |
|
187 $param1 instanceof Zend_Pdf_Element_Object |
|
188 ) && |
|
189 $param2 instanceof Zend_Pdf_ElementFactory_Interface && |
|
190 $param3 === null |
|
191 ) { |
|
192 switch ($param1->getType()) { |
|
193 case Zend_Pdf_Element::TYPE_DICTIONARY: |
|
194 $this->_dictionary = $param1; |
|
195 $this->_objFactory = $param2; |
|
196 $this->_attached = true; |
|
197 $this->_safeGS = false; |
|
198 return; |
|
199 break; |
|
200 |
|
201 case Zend_Pdf_Element::TYPE_NULL: |
|
202 $this->_objFactory = $param2; |
|
203 $pageWidth = $pageHeight = 0; |
|
204 break; |
|
205 |
|
206 default: |
|
207 require_once 'Zend/Pdf/Exception.php'; |
|
208 throw new Zend_Pdf_Exception('Unrecognized object type.'); |
|
209 break; |
|
210 |
|
211 } |
|
212 } else if ($param1 instanceof Zend_Pdf_Page && $param2 === null && $param3 === null) { |
|
213 // Duplicate existing page. |
|
214 // Let already existing content and resources to be shared between pages |
|
215 // We don't give existing content modification functionality, so we don't need "deep copy" |
|
216 $this->_objFactory = $param1->_objFactory; |
|
217 $this->_attached = &$param1->_attached; |
|
218 $this->_safeGS = false; |
|
219 |
|
220 $this->_dictionary = $this->_objFactory->newObject(new Zend_Pdf_Element_Dictionary()); |
|
221 |
|
222 foreach ($param1->_dictionary->getKeys() as $key) { |
|
223 if ($key == 'Contents') { |
|
224 // Clone Contents property |
|
225 |
|
226 $this->_dictionary->Contents = new Zend_Pdf_Element_Array(); |
|
227 |
|
228 if ($param1->_dictionary->Contents->getType() != Zend_Pdf_Element::TYPE_ARRAY) { |
|
229 // Prepare array of content streams and add existing stream |
|
230 $this->_dictionary->Contents->items[] = $param1->_dictionary->Contents; |
|
231 } else { |
|
232 // Clone array of the content streams |
|
233 foreach ($param1->_dictionary->Contents->items as $srcContentStream) { |
|
234 $this->_dictionary->Contents->items[] = $srcContentStream; |
|
235 } |
|
236 } |
|
237 } else { |
|
238 $this->_dictionary->$key = $param1->_dictionary->$key; |
|
239 } |
|
240 } |
|
241 |
|
242 return; |
|
243 } else if (is_string($param1) && |
|
244 ($param2 === null || $param2 instanceof Zend_Pdf_ElementFactory_Interface) && |
|
245 $param3 === null) { |
|
246 if ($param2 !== null) { |
|
247 $this->_objFactory = $param2; |
|
248 } else { |
|
249 require_once 'Zend/Pdf/ElementFactory.php'; |
|
250 $this->_objFactory = Zend_Pdf_ElementFactory::createFactory(1); |
|
251 } |
|
252 $this->_attached = false; |
|
253 $this->_safeGS = true; /** New page created. That's users App responsibility to track GS changes */ |
|
254 |
|
255 switch (strtolower($param1)) { |
|
256 case 'a4': |
|
257 $param1 = Zend_Pdf_Page::SIZE_A4; |
|
258 break; |
|
259 case 'a4-landscape': |
|
260 $param1 = Zend_Pdf_Page::SIZE_A4_LANDSCAPE; |
|
261 break; |
|
262 case 'letter': |
|
263 $param1 = Zend_Pdf_Page::SIZE_LETTER; |
|
264 break; |
|
265 case 'letter-landscape': |
|
266 $param1 = Zend_Pdf_Page::SIZE_LETTER_LANDSCAPE; |
|
267 break; |
|
268 default: |
|
269 // should be in "x:y" or "x:y:" form |
|
270 } |
|
271 |
|
272 $pageDim = explode(':', $param1); |
|
273 if(count($pageDim) == 2 || count($pageDim) == 3) { |
|
274 $pageWidth = $pageDim[0]; |
|
275 $pageHeight = $pageDim[1]; |
|
276 } else { |
|
277 /** |
|
278 * @todo support of user defined pagesize notations, like: |
|
279 * "210x297mm", "595x842", "8.5x11in", "612x792" |
|
280 */ |
|
281 require_once 'Zend/Pdf/Exception.php'; |
|
282 throw new Zend_Pdf_Exception('Wrong pagesize notation.'); |
|
283 } |
|
284 /** |
|
285 * @todo support of pagesize recalculation to "default user space units" |
|
286 */ |
|
287 |
|
288 } else if (is_numeric($param1) && is_numeric($param2) && |
|
289 ($param3 === null || $param3 instanceof Zend_Pdf_ElementFactory_Interface)) { |
|
290 if ($param3 !== null) { |
|
291 $this->_objFactory = $param3; |
|
292 } else { |
|
293 require_once 'Zend/Pdf/ElementFactory.php'; |
|
294 $this->_objFactory = Zend_Pdf_ElementFactory::createFactory(1); |
|
295 } |
|
296 |
|
297 $this->_attached = false; |
|
298 $this->_safeGS = true; /** New page created. That's users App responsibility to track GS changes */ |
|
299 $pageWidth = $param1; |
|
300 $pageHeight = $param2; |
|
301 |
|
302 } else { |
|
303 require_once 'Zend/Pdf/Exception.php'; |
|
304 throw new Zend_Pdf_Exception('Unrecognized method signature, wrong number of arguments or wrong argument types.'); |
|
305 } |
|
306 |
|
307 $this->_dictionary = $this->_objFactory->newObject(new Zend_Pdf_Element_Dictionary()); |
|
308 $this->_dictionary->Type = new Zend_Pdf_Element_Name('Page'); |
|
309 require_once 'Zend/Pdf.php'; |
|
310 $this->_dictionary->LastModified = new Zend_Pdf_Element_String(Zend_Pdf::pdfDate()); |
|
311 $this->_dictionary->Resources = new Zend_Pdf_Element_Dictionary(); |
|
312 $this->_dictionary->MediaBox = new Zend_Pdf_Element_Array(); |
|
313 $this->_dictionary->MediaBox->items[] = new Zend_Pdf_Element_Numeric(0); |
|
314 $this->_dictionary->MediaBox->items[] = new Zend_Pdf_Element_Numeric(0); |
|
315 $this->_dictionary->MediaBox->items[] = new Zend_Pdf_Element_Numeric($pageWidth); |
|
316 $this->_dictionary->MediaBox->items[] = new Zend_Pdf_Element_Numeric($pageHeight); |
|
317 $this->_dictionary->Contents = new Zend_Pdf_Element_Array(); |
|
318 } |
|
319 |
|
320 |
|
321 /** |
|
322 * Attach resource to the canvas |
|
323 * |
|
324 * Method returns a name of the resource which can be used |
|
325 * as a resource reference within drawing instructions stream |
|
326 * Allowed types: 'ExtGState', 'ColorSpace', 'Pattern', 'Shading', |
|
327 * 'XObject', 'Font', 'Properties' |
|
328 * |
|
329 * @param string $type |
|
330 * @param Zend_Pdf_Resource $resource |
|
331 * @return string |
|
332 */ |
|
333 protected function _attachResource($type, Zend_Pdf_Resource $resource) |
|
334 { |
|
335 // Check that Resources dictionary contains appropriate resource set |
|
336 if ($this->_dictionary->Resources->$type === null) { |
|
337 $this->_dictionary->Resources->touch(); |
|
338 $this->_dictionary->Resources->$type = new Zend_Pdf_Element_Dictionary(); |
|
339 } else { |
|
340 $this->_dictionary->Resources->$type->touch(); |
|
341 } |
|
342 |
|
343 // Check, that resource is already attached to resource set. |
|
344 $resObject = $resource->getResource(); |
|
345 foreach ($this->_dictionary->Resources->$type->getKeys() as $ResID) { |
|
346 if ($this->_dictionary->Resources->$type->$ResID === $resObject) { |
|
347 return $ResID; |
|
348 } |
|
349 } |
|
350 |
|
351 $idCounter = 1; |
|
352 do { |
|
353 $newResName = $type[0] . $idCounter++; |
|
354 } while ($this->_dictionary->Resources->$type->$newResName !== null); |
|
355 |
|
356 $this->_dictionary->Resources->$type->$newResName = $resObject; |
|
357 $this->_objFactory->attach($resource->getFactory()); |
|
358 |
|
359 return $newResName; |
|
360 } |
|
361 |
|
362 /** |
|
363 * Add procedureSet to the Page description |
|
364 * |
|
365 * @param string $procSetName |
|
366 */ |
|
367 protected function _addProcSet($procSetName) |
|
368 { |
|
369 // Check that Resources dictionary contains ProcSet entry |
|
370 if ($this->_dictionary->Resources->ProcSet === null) { |
|
371 $this->_dictionary->Resources->touch(); |
|
372 $this->_dictionary->Resources->ProcSet = new Zend_Pdf_Element_Array(); |
|
373 } else { |
|
374 $this->_dictionary->Resources->ProcSet->touch(); |
|
375 } |
|
376 |
|
377 foreach ($this->_dictionary->Resources->ProcSet->items as $procSetEntry) { |
|
378 if ($procSetEntry->value == $procSetName) { |
|
379 // Procset is already included into a ProcSet array |
|
380 return; |
|
381 } |
|
382 } |
|
383 |
|
384 $this->_dictionary->Resources->ProcSet->items[] = new Zend_Pdf_Element_Name($procSetName); |
|
385 } |
|
386 |
|
387 /** |
|
388 * Returns dictionaries of used resources. |
|
389 * |
|
390 * Used for canvas implementations interoperability |
|
391 * |
|
392 * Structure of the returned array: |
|
393 * array( |
|
394 * <resTypeName> => array( |
|
395 * <resName> => <Zend_Pdf_Resource object>, |
|
396 * <resName> => <Zend_Pdf_Resource object>, |
|
397 * <resName> => <Zend_Pdf_Resource object>, |
|
398 * ... |
|
399 * ), |
|
400 * <resTypeName> => array( |
|
401 * <resName> => <Zend_Pdf_Resource object>, |
|
402 * <resName> => <Zend_Pdf_Resource object>, |
|
403 * <resName> => <Zend_Pdf_Resource object>, |
|
404 * ... |
|
405 * ), |
|
406 * ... |
|
407 * 'ProcSet' => array() |
|
408 * ) |
|
409 * |
|
410 * where ProcSet array is a list of used procedure sets names (strings). |
|
411 * Allowed procedure set names: 'PDF', 'Text', 'ImageB', 'ImageC', 'ImageI' |
|
412 * |
|
413 * @internal |
|
414 * @return array |
|
415 */ |
|
416 public function getResources() |
|
417 { |
|
418 $resources = array(); |
|
419 $resDictionary = $this->_dictionary->Resources; |
|
420 |
|
421 foreach ($resDictionary->getKeys() as $resType) { |
|
422 $resources[$resType] = array(); |
|
423 |
|
424 if ($resType == 'ProcSet') { |
|
425 foreach ($resDictionary->ProcSet->items as $procSetEntry) { |
|
426 $resources[$resType][] = $procSetEntry->value; |
|
427 } |
|
428 } else { |
|
429 $resMap = $resDictionary->$resType; |
|
430 |
|
431 foreach ($resMap->getKeys() as $resId) { |
|
432 $resources[$resType][$resId] =new Zend_Pdf_Resource_Unified($resMap->$resId); |
|
433 } |
|
434 } |
|
435 } |
|
436 |
|
437 return $resources; |
|
438 } |
|
439 |
|
440 /** |
|
441 * Get drawing instructions stream |
|
442 * |
|
443 * It has to be returned as a PDF stream object to make it reusable. |
|
444 * |
|
445 * @internal |
|
446 * @returns Zend_Pdf_Resource_ContentStream |
|
447 */ |
|
448 public function getContents() |
|
449 { |
|
450 /** @todo implementation */ |
|
451 } |
|
452 |
|
453 /** |
|
454 * Return the height of this page in points. |
|
455 * |
|
456 * @return float |
|
457 */ |
|
458 public function getHeight() |
|
459 { |
|
460 return $this->_dictionary->MediaBox->items[3]->value - |
|
461 $this->_dictionary->MediaBox->items[1]->value; |
|
462 } |
|
463 |
|
464 /** |
|
465 * Return the width of this page in points. |
|
466 * |
|
467 * @return float |
|
468 */ |
|
469 public function getWidth() |
|
470 { |
|
471 return $this->_dictionary->MediaBox->items[2]->value - |
|
472 $this->_dictionary->MediaBox->items[0]->value; |
|
473 } |
|
474 |
|
475 /** |
|
476 * Clone page, extract it and dependent objects from the current document, |
|
477 * so it can be used within other docs. |
|
478 */ |
|
479 public function __clone() |
|
480 { |
|
481 $factory = Zend_Pdf_ElementFactory::createFactory(1); |
|
482 $processed = array(); |
|
483 |
|
484 // Clone dictionary object. |
|
485 // Do it explicitly to prevent sharing page attributes between different |
|
486 // results of clonePage() operation (other resources are still shared) |
|
487 $dictionary = new Zend_Pdf_Element_Dictionary(); |
|
488 foreach ($this->_dictionary->getKeys() as $key) { |
|
489 $dictionary->$key = $this->_dictionary->$key->makeClone($factory->getFactory(), |
|
490 $processed, |
|
491 Zend_Pdf_Element::CLONE_MODE_SKIP_PAGES); |
|
492 } |
|
493 |
|
494 $this->_dictionary = $factory->newObject($dictionary); |
|
495 $this->_objFactory = $factory; |
|
496 $this->_attached = false; |
|
497 $this->_style = null; |
|
498 $this->_font = null; |
|
499 } |
|
500 |
|
501 /** |
|
502 * Clone page, extract it and dependent objects from the current document, |
|
503 * so it can be used within other docs. |
|
504 * |
|
505 * @internal |
|
506 * @param Zend_Pdf_ElementFactory_Interface $factory |
|
507 * @param array $processed |
|
508 * @return Zend_Pdf_Page |
|
509 */ |
|
510 public function clonePage($factory, &$processed) |
|
511 { |
|
512 // Clone dictionary object. |
|
513 // Do it explicitly to prevent sharing page attributes between different |
|
514 // results of clonePage() operation (other resources are still shared) |
|
515 $dictionary = new Zend_Pdf_Element_Dictionary(); |
|
516 foreach ($this->_dictionary->getKeys() as $key) { |
|
517 $dictionary->$key = $this->_dictionary->$key->makeClone($factory->getFactory(), |
|
518 $processed, |
|
519 Zend_Pdf_Element::CLONE_MODE_SKIP_PAGES); |
|
520 } |
|
521 |
|
522 $clonedPage = new Zend_Pdf_Page($factory->newObject($dictionary), $factory); |
|
523 $clonedPage->_attached = false; |
|
524 |
|
525 return $clonedPage; |
|
526 } |
|
527 |
|
528 /** |
|
529 * Retrive PDF file reference to the page |
|
530 * |
|
531 * @internal |
|
532 * @return Zend_Pdf_Element_Dictionary |
|
533 */ |
|
534 public function getPageDictionary() |
|
535 { |
|
536 return $this->_dictionary; |
|
537 } |
|
538 |
|
539 /** |
|
540 * Dump current drawing instructions into the content stream. |
|
541 * |
|
542 * @todo Don't forget to close all current graphics operations (like path drawing) |
|
543 * |
|
544 * @throws Zend_Pdf_Exception |
|
545 */ |
|
546 public function flush() |
|
547 { |
|
548 if ($this->_saveCount != 0) { |
|
549 require_once 'Zend/Pdf/Exception.php'; |
|
550 throw new Zend_Pdf_Exception('Saved graphics state is not restored'); |
|
551 } |
|
552 |
|
553 if ($this->_contents == '') { |
|
554 return; |
|
555 } |
|
556 |
|
557 if ($this->_dictionary->Contents->getType() != Zend_Pdf_Element::TYPE_ARRAY) { |
|
558 /** |
|
559 * It's a stream object. |
|
560 * Prepare Contents page attribute for update. |
|
561 */ |
|
562 $this->_dictionary->touch(); |
|
563 |
|
564 $currentPageContents = $this->_dictionary->Contents; |
|
565 $this->_dictionary->Contents = new Zend_Pdf_Element_Array(); |
|
566 $this->_dictionary->Contents->items[] = $currentPageContents; |
|
567 } else { |
|
568 $this->_dictionary->Contents->touch(); |
|
569 } |
|
570 |
|
571 if ((!$this->_safeGS) && (count($this->_dictionary->Contents->items) != 0)) { |
|
572 /** |
|
573 * Page already has some content which is not treated as safe. |
|
574 * |
|
575 * Add save/restore GS operators |
|
576 */ |
|
577 $this->_addProcSet('PDF'); |
|
578 |
|
579 $newContentsArray = new Zend_Pdf_Element_Array(); |
|
580 $newContentsArray->items[] = $this->_objFactory->newStreamObject(" q\n"); |
|
581 foreach ($this->_dictionary->Contents->items as $contentStream) { |
|
582 $newContentsArray->items[] = $contentStream; |
|
583 } |
|
584 $newContentsArray->items[] = $this->_objFactory->newStreamObject(" Q\n"); |
|
585 |
|
586 $this->_dictionary->touch(); |
|
587 $this->_dictionary->Contents = $newContentsArray; |
|
588 |
|
589 $this->_safeGS = true; |
|
590 } |
|
591 |
|
592 $this->_dictionary->Contents->items[] = |
|
593 $this->_objFactory->newStreamObject($this->_contents); |
|
594 |
|
595 $this->_contents = ''; |
|
596 } |
|
597 |
|
598 /** |
|
599 * Prepare page to be rendered into PDF. |
|
600 * |
|
601 * @todo Don't forget to close all current graphics operations (like path drawing) |
|
602 * |
|
603 * @param Zend_Pdf_ElementFactory_Interface $objFactory |
|
604 * @throws Zend_Pdf_Exception |
|
605 */ |
|
606 public function render(Zend_Pdf_ElementFactory_Interface $objFactory) |
|
607 { |
|
608 $this->flush(); |
|
609 |
|
610 if ($objFactory === $this->_objFactory) { |
|
611 // Page is already attached to the document. |
|
612 return; |
|
613 } |
|
614 |
|
615 if ($this->_attached) { |
|
616 require_once 'Zend/Pdf/Exception.php'; |
|
617 throw new Zend_Pdf_Exception('Page is attached to other documen. Use clone $page to get it context free.'); |
|
618 } else { |
|
619 $objFactory->attach($this->_objFactory); |
|
620 } |
|
621 } |
|
622 |
|
623 /** |
|
624 * Extract resources attached to the page |
|
625 * |
|
626 * This method is not intended to be used in userland, but helps to optimize some document wide operations |
|
627 * |
|
628 * returns array of Zend_Pdf_Element_Dictionary objects |
|
629 * |
|
630 * @internal |
|
631 * @return array |
|
632 */ |
|
633 public function extractResources() |
|
634 { |
|
635 return $this->_dictionary->Resources; |
|
636 } |
|
637 |
|
638 /** |
|
639 * Extract fonts attached to the page |
|
640 * |
|
641 * returns array of Zend_Pdf_Resource_Font_Extracted objects |
|
642 * |
|
643 * @return array |
|
644 * @throws Zend_Pdf_Exception |
|
645 */ |
|
646 public function extractFonts() |
|
647 { |
|
648 if ($this->_dictionary->Resources->Font === null) { |
|
649 // Page doesn't have any font attached |
|
650 // Return empty array |
|
651 return array(); |
|
652 } |
|
653 |
|
654 $fontResources = $this->_dictionary->Resources->Font; |
|
655 |
|
656 $fontResourcesUnique = array(); |
|
657 foreach ($fontResources->getKeys() as $fontResourceName) { |
|
658 $fontDictionary = $fontResources->$fontResourceName; |
|
659 |
|
660 if (! ($fontDictionary instanceof Zend_Pdf_Element_Reference || |
|
661 $fontDictionary instanceof Zend_Pdf_Element_Object) ) { |
|
662 require_once 'Zend/Pdf/Exception.php'; |
|
663 throw new Zend_Pdf_Exception('Font dictionary has to be an indirect object or object reference.'); |
|
664 } |
|
665 |
|
666 $fontResourcesUnique[spl_object_hash($fontDictionary->getObject())] = $fontDictionary; |
|
667 } |
|
668 |
|
669 $fonts = array(); |
|
670 require_once 'Zend/Pdf/Exception.php'; |
|
671 foreach ($fontResourcesUnique as $resourceId => $fontDictionary) { |
|
672 try { |
|
673 require_once 'Zend/Pdf/Resource/Font/Extracted.php'; |
|
674 // Try to extract font |
|
675 $extractedFont = new Zend_Pdf_Resource_Font_Extracted($fontDictionary); |
|
676 |
|
677 $fonts[$resourceId] = $extractedFont; |
|
678 } catch (Zend_Pdf_Exception $e) { |
|
679 if ($e->getMessage() != 'Unsupported font type.') { |
|
680 throw new Zend_Pdf_Exception($e->getMessage(), $e->getCode(), $e); |
|
681 } |
|
682 } |
|
683 } |
|
684 |
|
685 return $fonts; |
|
686 } |
|
687 |
|
688 /** |
|
689 * Extract font attached to the page by specific font name |
|
690 * |
|
691 * $fontName should be specified in UTF-8 encoding |
|
692 * |
|
693 * @return Zend_Pdf_Resource_Font_Extracted|null |
|
694 * @throws Zend_Pdf_Exception |
|
695 */ |
|
696 public function extractFont($fontName) |
|
697 { |
|
698 if ($this->_dictionary->Resources->Font === null) { |
|
699 // Page doesn't have any font attached |
|
700 return null; |
|
701 } |
|
702 |
|
703 $fontResources = $this->_dictionary->Resources->Font; |
|
704 |
|
705 $fontResourcesUnique = array(); |
|
706 |
|
707 require_once 'Zend/Pdf/Exception.php'; |
|
708 foreach ($fontResources->getKeys() as $fontResourceName) { |
|
709 $fontDictionary = $fontResources->$fontResourceName; |
|
710 |
|
711 if (! ($fontDictionary instanceof Zend_Pdf_Element_Reference || |
|
712 $fontDictionary instanceof Zend_Pdf_Element_Object) ) { |
|
713 require_once 'Zend/Pdf/Exception.php'; |
|
714 throw new Zend_Pdf_Exception('Font dictionary has to be an indirect object or object reference.'); |
|
715 } |
|
716 |
|
717 $resourceId = spl_object_hash($fontDictionary->getObject()); |
|
718 if (isset($fontResourcesUnique[$resourceId])) { |
|
719 continue; |
|
720 } else { |
|
721 // Mark resource as processed |
|
722 $fontResourcesUnique[$resourceId] = 1; |
|
723 } |
|
724 |
|
725 if ($fontDictionary->BaseFont->value != $fontName) { |
|
726 continue; |
|
727 } |
|
728 |
|
729 try { |
|
730 // Try to extract font |
|
731 require_once 'Zend/Pdf/Resource/Font/Extracted.php'; |
|
732 return new Zend_Pdf_Resource_Font_Extracted($fontDictionary); |
|
733 } catch (Zend_Pdf_Exception $e) { |
|
734 if ($e->getMessage() != 'Unsupported font type.') { |
|
735 throw new Zend_Pdf_Exception($e->getMessage(), $e->getCode(), $e); |
|
736 } |
|
737 |
|
738 // Continue searhing font with specified name |
|
739 } |
|
740 } |
|
741 |
|
742 return null; |
|
743 } |
|
744 |
|
745 /** |
|
746 * |
|
747 * @param Zend_Pdf_Annotation $annotation |
|
748 * @return Zend_Pdf_Page |
|
749 */ |
|
750 public function attachAnnotation(Zend_Pdf_Annotation $annotation) |
|
751 { |
|
752 $annotationDictionary = $annotation->getResource(); |
|
753 if (!$annotationDictionary instanceof Zend_Pdf_Element_Object && |
|
754 !$annotationDictionary instanceof Zend_Pdf_Element_Reference) { |
|
755 $annotationDictionary = $this->_objFactory->newObject($annotationDictionary); |
|
756 } |
|
757 |
|
758 if ($this->_dictionary->Annots === null) { |
|
759 $this->_dictionary->touch(); |
|
760 $this->_dictionary->Annots = new Zend_Pdf_Element_Array(); |
|
761 } else { |
|
762 $this->_dictionary->Annots->touch(); |
|
763 } |
|
764 |
|
765 $this->_dictionary->Annots->items[] = $annotationDictionary; |
|
766 |
|
767 $annotationDictionary->touch(); |
|
768 $annotationDictionary->P = $this->_dictionary; |
|
769 |
|
770 return $this; |
|
771 } |
|
772 } |
|
773 |