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7f254ad8 AE |
1 | <?php |
2 | /** | |
3 | * @package dompdf | |
4 | * @link http://dompdf.github.com/ | |
5 | * @author Benj Carson <benjcarson@digitaljunkies.ca> | |
6 | * @author Fabien Ménager <fabien.menager@gmail.com> | |
7 | * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License | |
8 | */ | |
9 | namespace Dompdf\Adapter; | |
10 | ||
11 | use Dompdf\Canvas; | |
12 | use Dompdf\Dompdf; | |
13 | use Dompdf\Image\Cache; | |
14 | use Dompdf\Helpers; | |
15 | ||
16 | /** | |
17 | * Image rendering interface | |
18 | * | |
19 | * Renders to an image format supported by GD (jpeg, gif, png, xpm). | |
20 | * Not super-useful day-to-day but handy nonetheless | |
21 | * | |
22 | * @package dompdf | |
23 | */ | |
24 | class GD implements Canvas | |
25 | { | |
26 | /** | |
27 | * @var Dompdf | |
28 | */ | |
29 | private $_dompdf; | |
30 | ||
31 | /** | |
32 | * Resource handle for the image | |
33 | * | |
34 | * @var resource | |
35 | */ | |
36 | private $_img; | |
37 | ||
38 | /** | |
39 | * Resource handle for the image | |
40 | * | |
41 | * @var resource[] | |
42 | */ | |
43 | private $_imgs; | |
44 | ||
45 | /** | |
46 | * Apparent canvas width in pixels | |
47 | * | |
48 | * @var int | |
49 | */ | |
50 | private $_width; | |
51 | ||
52 | /** | |
53 | * Apparent canvas height in pixels | |
54 | * | |
55 | * @var int | |
56 | */ | |
57 | private $_height; | |
58 | ||
59 | /** | |
60 | * Actual image width in pixels | |
61 | * | |
62 | * @var int | |
63 | */ | |
64 | private $_actual_width; | |
65 | ||
66 | /** | |
67 | * Actual image height in pixels | |
68 | * | |
69 | * @var int | |
70 | */ | |
71 | private $_actual_height; | |
72 | ||
73 | /** | |
74 | * Current page number | |
75 | * | |
76 | * @var int | |
77 | */ | |
78 | private $_page_number; | |
79 | ||
80 | /** | |
81 | * Total number of pages | |
82 | * | |
83 | * @var int | |
84 | */ | |
85 | private $_page_count; | |
86 | ||
87 | /** | |
88 | * Image antialias factor | |
89 | * | |
90 | * @var float | |
91 | */ | |
92 | private $_aa_factor; | |
93 | ||
94 | /** | |
95 | * Allocated colors | |
96 | * | |
97 | * @var array | |
98 | */ | |
99 | private $_colors; | |
100 | ||
101 | /** | |
102 | * Background color | |
103 | * | |
104 | * @var int | |
105 | */ | |
106 | private $_bg_color; | |
107 | ||
108 | /** | |
109 | * Background color array | |
110 | * | |
111 | * @var int | |
112 | */ | |
113 | private $_bg_color_array; | |
114 | ||
115 | /** | |
116 | * Actual DPI | |
117 | * | |
118 | * @var int | |
119 | */ | |
120 | private $dpi; | |
121 | ||
122 | /** | |
123 | * Amount to scale font sizes | |
124 | * | |
125 | * Font sizes are 72 DPI, GD internally uses 96. Scale them proportionally. | |
126 | * 72 / 96 = 0.75. | |
127 | * | |
128 | * @var float | |
129 | */ | |
130 | const FONT_SCALE = 0.75; | |
131 | ||
132 | /** | |
133 | * Class constructor | |
134 | * | |
135 | * @param mixed $size The size of image to create: array(x1,y1,x2,y2) or "letter", "legal", etc. | |
136 | * @param string $orientation The orientation of the document (either 'landscape' or 'portrait') | |
137 | * @param Dompdf $dompdf | |
138 | * @param float $aa_factor Anti-aliasing factor, 1 for no AA | |
139 | * @param array $bg_color Image background color: array(r,g,b,a), 0 <= r,g,b,a <= 1 | |
140 | */ | |
141 | function __construct($size = 'letter', $orientation = "portrait", Dompdf $dompdf, $aa_factor = 1.0, $bg_color = array(1, 1, 1, 0)) | |
142 | { | |
143 | ||
144 | if (!is_array($size)) { | |
145 | $size = strtolower($size); | |
146 | ||
147 | if (isset(CPDF::$PAPER_SIZES[$size])) { | |
148 | $size = CPDF::$PAPER_SIZES[$size]; | |
149 | } else { | |
150 | $size = CPDF::$PAPER_SIZES["letter"]; | |
151 | } | |
152 | } | |
153 | ||
154 | if (strtolower($orientation) === "landscape") { | |
155 | list($size[2], $size[3]) = array($size[3], $size[2]); | |
156 | } | |
157 | ||
158 | $this->_dompdf = $dompdf; | |
159 | ||
160 | $this->dpi = $this->get_dompdf()->get_option('dpi'); | |
161 | ||
162 | if ($aa_factor < 1) { | |
163 | $aa_factor = 1; | |
164 | } | |
165 | ||
166 | $this->_aa_factor = $aa_factor; | |
167 | ||
168 | $size[2] *= $aa_factor; | |
169 | $size[3] *= $aa_factor; | |
170 | ||
171 | $this->_width = $size[2] - $size[0]; | |
172 | $this->_height = $size[3] - $size[1]; | |
173 | ||
174 | $this->_actual_width = $this->_upscale($this->_width); | |
175 | $this->_actual_height = $this->_upscale($this->_height); | |
176 | ||
177 | if (is_null($bg_color) || !is_array($bg_color)) { | |
178 | // Pure white bg | |
179 | $bg_color = array(1, 1, 1, 0); | |
180 | } | |
181 | ||
182 | $this->_bg_color_array = $bg_color; | |
183 | ||
184 | $this->new_page(); | |
185 | } | |
186 | ||
187 | function get_dompdf() | |
188 | { | |
189 | return $this->_dompdf; | |
190 | } | |
191 | ||
192 | /** | |
193 | * Return the GF image resource | |
194 | * | |
195 | * @return resource | |
196 | */ | |
197 | function get_image() | |
198 | { | |
199 | return $this->_img; | |
200 | } | |
201 | ||
202 | /** | |
203 | * Return the image's width in pixels | |
204 | * | |
205 | * @return float | |
206 | */ | |
207 | function get_width() | |
208 | { | |
209 | return $this->_width / $this->_aa_factor; | |
210 | } | |
211 | ||
212 | /** | |
213 | * Return the image's height in pixels | |
214 | * | |
215 | * @return float | |
216 | */ | |
217 | function get_height() | |
218 | { | |
219 | return $this->_height / $this->_aa_factor; | |
220 | } | |
221 | ||
222 | /** | |
223 | * Returns the current page number | |
224 | * @return int | |
225 | */ | |
226 | function get_page_number() | |
227 | { | |
228 | return $this->_page_number; | |
229 | } | |
230 | ||
231 | /** | |
232 | * Returns the total number of pages in the document | |
233 | * @return int | |
234 | */ | |
235 | function get_page_count() | |
236 | { | |
237 | return $this->_page_count; | |
238 | } | |
239 | ||
240 | /** | |
241 | * Sets the current page number | |
242 | * | |
243 | * @param int $num | |
244 | */ | |
245 | function set_page_number($num) | |
246 | { | |
247 | $this->_page_number = $num; | |
248 | } | |
249 | ||
250 | /** | |
251 | * Sets the page count | |
252 | * | |
253 | * @param int $count | |
254 | */ | |
255 | function set_page_count($count) | |
256 | { | |
257 | $this->_page_count = $count; | |
258 | } | |
259 | ||
260 | /** | |
261 | * Sets the opacity | |
262 | * | |
263 | * @param $opacity | |
264 | * @param $mode | |
265 | */ | |
266 | function set_opacity($opacity, $mode = "Normal") | |
267 | { | |
268 | // FIXME | |
269 | } | |
270 | ||
271 | /** | |
272 | * Allocate a new color. Allocate with GD as needed and store | |
273 | * previously allocated colors in $this->_colors. | |
274 | * | |
275 | * @param array $color The new current color | |
276 | * @return int The allocated color | |
277 | */ | |
278 | private function _allocate_color($color) | |
279 | { | |
280 | ||
281 | if (isset($color["c"])) { | |
282 | $color = Helpers::cmyk_to_rgb($color); | |
283 | } | |
284 | ||
285 | // Full opacity if no alpha set | |
286 | if (!isset($color[3])) | |
287 | $color[3] = 0; | |
288 | ||
289 | list($r, $g, $b, $a) = $color; | |
290 | ||
291 | $r *= 255; | |
292 | $g *= 255; | |
293 | $b *= 255; | |
294 | $a *= 127; | |
295 | ||
296 | // Clip values | |
297 | $r = $r > 255 ? 255 : $r; | |
298 | $g = $g > 255 ? 255 : $g; | |
299 | $b = $b > 255 ? 255 : $b; | |
300 | $a = $a > 127 ? 127 : $a; | |
301 | ||
302 | $r = $r < 0 ? 0 : $r; | |
303 | $g = $g < 0 ? 0 : $g; | |
304 | $b = $b < 0 ? 0 : $b; | |
305 | $a = $a < 0 ? 0 : $a; | |
306 | ||
307 | $key = sprintf("#%02X%02X%02X%02X", $r, $g, $b, $a); | |
308 | ||
309 | if (isset($this->_colors[$key])) | |
310 | return $this->_colors[$key]; | |
311 | ||
312 | if ($a != 0) | |
313 | $this->_colors[$key] = imagecolorallocatealpha($this->get_image(), $r, $g, $b, $a); | |
314 | else | |
315 | $this->_colors[$key] = imagecolorallocate($this->get_image(), $r, $g, $b); | |
316 | ||
317 | return $this->_colors[$key]; | |
318 | ||
319 | } | |
320 | ||
321 | /** | |
322 | * Scales value up to the current canvas DPI from 72 DPI | |
323 | * | |
324 | * @param float $length | |
325 | * @return float | |
326 | */ | |
327 | private function _upscale($length) | |
328 | { | |
329 | return ($length * $this->dpi) / 72 * $this->_aa_factor; | |
330 | } | |
331 | ||
332 | /** | |
333 | * Scales value down from the current canvas DPI to 72 DPI | |
334 | * | |
335 | * @param float $length | |
336 | * @return float | |
337 | */ | |
338 | private function _downscale($length) | |
339 | { | |
340 | return ($length / $this->dpi * 72) / $this->_aa_factor; | |
341 | } | |
342 | ||
343 | /** | |
344 | * Draws a line from x1,y1 to x2,y2 | |
345 | * | |
346 | * See {@link Style::munge_color()} for the format of the color array. | |
347 | * See {@link Cpdf::setLineStyle()} for a description of the format of the | |
348 | * $style parameter (aka dash). | |
349 | * | |
350 | * @param float $x1 | |
351 | * @param float $y1 | |
352 | * @param float $x2 | |
353 | * @param float $y2 | |
354 | * @param array $color | |
355 | * @param float $width | |
356 | * @param array $style | |
357 | */ | |
358 | function line($x1, $y1, $x2, $y2, $color, $width, $style = null) | |
359 | { | |
360 | ||
361 | // Scale by the AA factor and DPI | |
362 | $x1 = $this->_upscale($x1); | |
363 | $y1 = $this->_upscale($y1); | |
364 | $x2 = $this->_upscale($x2); | |
365 | $y2 = $this->_upscale($y2); | |
366 | $width = $this->_upscale($width); | |
367 | ||
368 | $c = $this->_allocate_color($color); | |
369 | ||
370 | // Convert the style array if required | |
371 | if (is_array($style) && count($style) > 0) { | |
372 | $gd_style = array(); | |
373 | ||
374 | if (count($style) == 1) { | |
375 | for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) { | |
376 | $gd_style[] = $c; | |
377 | } | |
378 | ||
379 | for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) { | |
380 | $gd_style[] = $this->_bg_color; | |
381 | } | |
382 | ||
383 | } else { | |
384 | ||
385 | $i = 0; | |
386 | foreach ($style as $length) { | |
387 | ||
388 | if ($i % 2 == 0) { | |
389 | // 'On' pattern | |
390 | for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) | |
391 | $gd_style[] = $c; | |
392 | ||
393 | } else { | |
394 | // Off pattern | |
395 | for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) | |
396 | $gd_style[] = $this->_bg_color; | |
397 | ||
398 | } | |
399 | $i++; | |
400 | } | |
401 | } | |
402 | ||
403 | if(!empty($gd_style)) { | |
404 | imagesetstyle($this->get_image(), $gd_style); | |
405 | $c = IMG_COLOR_STYLED; | |
406 | } | |
407 | } | |
408 | ||
409 | imagesetthickness($this->get_image(), $width); | |
410 | ||
411 | imageline($this->get_image(), $x1, $y1, $x2, $y2, $c); | |
412 | ||
413 | } | |
414 | ||
415 | function arc($x1, $y1, $r1, $r2, $astart, $aend, $color, $width, $style = array()) | |
416 | { | |
417 | // @todo | |
418 | } | |
419 | ||
420 | /** | |
421 | * Draws a rectangle at x1,y1 with width w and height h | |
422 | * | |
423 | * See {@link Style::munge_color()} for the format of the color array. | |
424 | * See {@link Cpdf::setLineStyle()} for a description of the $style | |
425 | * parameter (aka dash) | |
426 | * | |
427 | * @param float $x1 | |
428 | * @param float $y1 | |
429 | * @param float $w | |
430 | * @param float $h | |
431 | * @param array $color | |
432 | * @param float $width | |
433 | * @param array $style | |
434 | */ | |
435 | function rectangle($x1, $y1, $w, $h, $color, $width, $style = null) | |
436 | { | |
437 | ||
438 | // Scale by the AA factor and DPI | |
439 | $x1 = $this->_upscale($x1); | |
440 | $y1 = $this->_upscale($y1); | |
441 | $w = $this->_upscale($w); | |
442 | $h = $this->_upscale($h); | |
443 | $width = $this->_upscale($width); | |
444 | ||
445 | $c = $this->_allocate_color($color); | |
446 | ||
447 | // Convert the style array if required | |
448 | if (is_array($style) && count($style) > 0) { | |
449 | $gd_style = array(); | |
450 | ||
451 | foreach ($style as $length) { | |
452 | for ($i = 0; $i < $length; $i++) { | |
453 | $gd_style[] = $c; | |
454 | } | |
455 | } | |
456 | ||
457 | if(!empty($gd_style)) { | |
458 | imagesetstyle($this->get_image(), $gd_style); | |
459 | $c = IMG_COLOR_STYLED; | |
460 | } | |
461 | } | |
462 | ||
463 | imagesetthickness($this->get_image(), $width); | |
464 | ||
465 | imagerectangle($this->get_image(), $x1, $y1, $x1 + $w, $y1 + $h, $c); | |
466 | ||
467 | } | |
468 | ||
469 | /** | |
470 | * Draws a filled rectangle at x1,y1 with width w and height h | |
471 | * | |
472 | * See {@link Style::munge_color()} for the format of the color array. | |
473 | * | |
474 | * @param float $x1 | |
475 | * @param float $y1 | |
476 | * @param float $w | |
477 | * @param float $h | |
478 | * @param array $color | |
479 | */ | |
480 | function filled_rectangle($x1, $y1, $w, $h, $color) | |
481 | { | |
482 | ||
483 | // Scale by the AA factor and DPI | |
484 | $x1 = $this->_upscale($x1); | |
485 | $y1 = $this->_upscale($y1); | |
486 | $w = $this->_upscale($w); | |
487 | $h = $this->_upscale($h); | |
488 | ||
489 | $c = $this->_allocate_color($color); | |
490 | ||
491 | imagefilledrectangle($this->get_image(), $x1, $y1, $x1 + $w, $y1 + $h, $c); | |
492 | ||
493 | } | |
494 | ||
495 | /** | |
496 | * Starts a clipping rectangle at x1,y1 with width w and height h | |
497 | * | |
498 | * @param float $x1 | |
499 | * @param float $y1 | |
500 | * @param float $w | |
501 | * @param float $h | |
502 | */ | |
503 | function clipping_rectangle($x1, $y1, $w, $h) | |
504 | { | |
505 | // @todo | |
506 | } | |
507 | ||
508 | function clipping_roundrectangle($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL) | |
509 | { | |
510 | // @todo | |
511 | } | |
512 | ||
513 | /** | |
514 | * Ends the last clipping shape | |
515 | */ | |
516 | function clipping_end() | |
517 | { | |
518 | // @todo | |
519 | } | |
520 | ||
521 | function save() | |
522 | { | |
523 | $this->get_dompdf()->set_option('dpi', 72); | |
524 | } | |
525 | ||
526 | function restore() | |
527 | { | |
528 | $this->get_dompdf()->set_option('dpi', $this->dpi); | |
529 | } | |
530 | ||
531 | function rotate($angle, $x, $y) | |
532 | { | |
533 | // @todo | |
534 | } | |
535 | ||
536 | function skew($angle_x, $angle_y, $x, $y) | |
537 | { | |
538 | // @todo | |
539 | } | |
540 | ||
541 | function scale($s_x, $s_y, $x, $y) | |
542 | { | |
543 | // @todo | |
544 | } | |
545 | ||
546 | function translate($t_x, $t_y) | |
547 | { | |
548 | // @todo | |
549 | } | |
550 | ||
551 | function transform($a, $b, $c, $d, $e, $f) | |
552 | { | |
553 | // @todo | |
554 | } | |
555 | ||
556 | /** | |
557 | * Draws a polygon | |
558 | * | |
559 | * The polygon is formed by joining all the points stored in the $points | |
560 | * array. $points has the following structure: | |
561 | * <code> | |
562 | * array(0 => x1, | |
563 | * 1 => y1, | |
564 | * 2 => x2, | |
565 | * 3 => y2, | |
566 | * ... | |
567 | * ); | |
568 | * </code> | |
569 | * | |
570 | * See {@link Style::munge_color()} for the format of the color array. | |
571 | * See {@link Cpdf::setLineStyle()} for a description of the $style | |
572 | * parameter (aka dash) | |
573 | * | |
574 | * @param array $points | |
575 | * @param array $color | |
576 | * @param float $width | |
577 | * @param array $style | |
578 | * @param bool $fill Fills the polygon if true | |
579 | */ | |
580 | function polygon($points, $color, $width = null, $style = null, $fill = false) | |
581 | { | |
582 | ||
583 | // Scale each point by the AA factor and DPI | |
584 | foreach (array_keys($points) as $i) | |
585 | $points[$i] = $this->_upscale($points[$i]); | |
586 | ||
587 | $c = $this->_allocate_color($color); | |
588 | ||
589 | // Convert the style array if required | |
590 | if (is_array($style) && count($style) > 0 && !$fill) { | |
591 | $gd_style = array(); | |
592 | ||
593 | foreach ($style as $length) { | |
594 | for ($i = 0; $i < $length; $i++) { | |
595 | $gd_style[] = $c; | |
596 | } | |
597 | } | |
598 | ||
599 | if(!empty($gd_style)) { | |
600 | imagesetstyle($this->get_image(), $gd_style); | |
601 | $c = IMG_COLOR_STYLED; | |
602 | } | |
603 | } | |
604 | ||
605 | imagesetthickness($this->get_image(), $width); | |
606 | ||
607 | if ($fill) | |
608 | imagefilledpolygon($this->get_image(), $points, count($points) / 2, $c); | |
609 | else | |
610 | imagepolygon($this->get_image(), $points, count($points) / 2, $c); | |
611 | ||
612 | } | |
613 | ||
614 | /** | |
615 | * Draws a circle at $x,$y with radius $r | |
616 | * | |
617 | * See {@link Style::munge_color()} for the format of the color array. | |
618 | * See {@link Cpdf::setLineStyle()} for a description of the $style | |
619 | * parameter (aka dash) | |
620 | * | |
621 | * @param float $x | |
622 | * @param float $y | |
623 | * @param float $r | |
624 | * @param array $color | |
625 | * @param float $width | |
626 | * @param array $style | |
627 | * @param bool $fill Fills the circle if true | |
628 | */ | |
629 | function circle($x, $y, $r, $color, $width = null, $style = null, $fill = false) | |
630 | { | |
631 | ||
632 | // Scale by the AA factor and DPI | |
633 | $x = $this->_upscale($x); | |
634 | $y = $this->_upscale($y); | |
635 | $r = $this->_upscale($r); | |
636 | ||
637 | $c = $this->_allocate_color($color); | |
638 | ||
639 | // Convert the style array if required | |
640 | if (is_array($style) && count($style) > 0 && !$fill) { | |
641 | $gd_style = array(); | |
642 | ||
643 | foreach ($style as $length) { | |
644 | for ($i = 0; $i < $length; $i++) { | |
645 | $gd_style[] = $c; | |
646 | } | |
647 | } | |
648 | ||
649 | if(!empty($gd_style)) { | |
650 | imagesetstyle($this->get_image(), $gd_style); | |
651 | $c = IMG_COLOR_STYLED; | |
652 | } | |
653 | } | |
654 | ||
655 | imagesetthickness($this->get_image(), $width); | |
656 | ||
657 | if ($fill) | |
658 | imagefilledellipse($this->get_image(), $x, $y, $r, $r, $c); | |
659 | else | |
660 | imageellipse($this->get_image(), $x, $y, $r, $r, $c); | |
661 | ||
662 | } | |
663 | ||
664 | /** | |
665 | * Add an image to the pdf. | |
666 | * The image is placed at the specified x and y coordinates with the | |
667 | * given width and height. | |
668 | * | |
669 | * @param string $img_url the path to the image | |
670 | * @param float $x x position | |
671 | * @param float $y y position | |
672 | * @param int $w width (in pixels) | |
673 | * @param int $h height (in pixels) | |
674 | * @param string $resolution | |
675 | * | |
676 | * @return void | |
677 | * @internal param string $img_type the type (e.g. extension) of the image | |
678 | */ | |
679 | function image($img_url, $x, $y, $w, $h, $resolution = "normal") | |
680 | { | |
681 | $img_type = Cache::detect_type($img_url, $this->get_dompdf()->getHttpContext()); | |
682 | ||
683 | if (!$img_type) { | |
684 | return; | |
685 | } | |
686 | ||
687 | $func = "imagecreatefrom$img_type"; | |
688 | if (!function_exists($func_name)) { | |
689 | if (!method_exists("Dompdf\Helpers", $func_name)) { | |
690 | throw new Exception("Function $func_name() not found. Cannot convert $type image: $image_url. Please install the image PHP extension."); | |
691 | } | |
692 | $func_name = "\\Dompdf\\Helpers::" . $func_name; | |
693 | } | |
694 | $src = @call_user_func($func_name, $image_url); | |
695 | ||
696 | if (!$src) { | |
697 | return; // Probably should add to $_dompdf_errors or whatever here | |
698 | } | |
699 | ||
700 | // Scale by the AA factor and DPI | |
701 | $x = $this->_upscale($x); | |
702 | $y = $this->_upscale($y); | |
703 | ||
704 | $w = $this->_upscale($w); | |
705 | $h = $this->_upscale($h); | |
706 | ||
707 | $img_w = imagesx($src); | |
708 | $img_h = imagesy($src); | |
709 | ||
710 | imagecopyresampled($this->get_image(), $src, $x, $y, 0, 0, $w, $h, $img_w, $img_h); | |
711 | ||
712 | } | |
713 | ||
714 | /** | |
715 | * Writes text at the specified x and y coordinates | |
716 | * See {@link Style::munge_color()} for the format of the color array. | |
717 | * | |
718 | * @param float $x | |
719 | * @param float $y | |
720 | * @param string $text the text to write | |
721 | * @param string $font the font file to use | |
722 | * @param float $size the font size, in points | |
723 | * @param array $color | |
724 | * @param float $word_spacing word spacing adjustment | |
725 | * @param float $char_spacing | |
726 | * @param float $angle Text angle | |
727 | * | |
728 | * @return void | |
729 | */ | |
730 | function text($x, $y, $text, $font, $size, $color = array(0, 0, 0), $word_spacing = 0.0, $char_spacing = 0.0, $angle = 0.0) | |
731 | { | |
732 | ||
733 | // Scale by the AA factor and DPI | |
734 | $x = $this->_upscale($x); | |
735 | $y = $this->_upscale($y); | |
736 | $size = $this->_upscale($size) * self::FONT_SCALE; | |
737 | ||
738 | $h = $this->get_font_height_actual($font, $size); | |
739 | $c = $this->_allocate_color($color); | |
740 | ||
741 | // imagettftext() converts numeric entities to their respective | |
742 | // character. Preserve any originally double encoded entities to be | |
743 | // represented as is. | |
744 | // eg: &#160; will render   rather than its character. | |
745 | $text = preg_replace('/&(#(?:x[a-fA-F0-9]+|[0-9]+);)/', '&\1', $text); | |
746 | ||
747 | $text = mb_encode_numericentity($text, array(0x0080, 0xff, 0, 0xff), 'UTF-8'); | |
748 | ||
749 | $font = $this->get_ttf_file($font); | |
750 | ||
751 | // FIXME: word spacing | |
752 | imagettftext($this->get_image(), $size, $angle, $x, $y + $h, $c, $font, $text); | |
753 | ||
754 | } | |
755 | ||
756 | function javascript($code) | |
757 | { | |
758 | // Not implemented | |
759 | } | |
760 | ||
761 | /** | |
762 | * Add a named destination (similar to <a name="foo">...</a> in html) | |
763 | * | |
764 | * @param string $anchorname The name of the named destination | |
765 | */ | |
766 | function add_named_dest($anchorname) | |
767 | { | |
768 | // Not implemented | |
769 | } | |
770 | ||
771 | /** | |
772 | * Add a link to the pdf | |
773 | * | |
774 | * @param string $url The url to link to | |
775 | * @param float $x The x position of the link | |
776 | * @param float $y The y position of the link | |
777 | * @param float $width The width of the link | |
778 | * @param float $height The height of the link | |
779 | */ | |
780 | function add_link($url, $x, $y, $width, $height) | |
781 | { | |
782 | // Not implemented | |
783 | } | |
784 | ||
785 | /** | |
786 | * Add meta information to the PDF | |
787 | * | |
788 | * @param string $label label of the value (Creator, Producer, etc.) | |
789 | * @param string $value the text to set | |
790 | */ | |
791 | function add_info($label, $value) | |
792 | { | |
793 | // N/A | |
794 | } | |
795 | ||
796 | function set_default_view($view, $options = array()) | |
797 | { | |
798 | // N/A | |
799 | } | |
800 | ||
801 | /** | |
802 | * Calculates text size, in points | |
803 | * | |
804 | * @param string $text the text to be sized | |
805 | * @param string $font the desired font | |
806 | * @param float $size the desired font size | |
807 | * @param float $word_spacing word spacing, if any | |
808 | * @param float $char_spacing char spacing, if any | |
809 | * | |
810 | * @return float | |
811 | */ | |
812 | function get_text_width($text, $font, $size, $word_spacing = 0.0, $char_spacing = 0.0) | |
813 | { | |
814 | $font = $this->get_ttf_file($font); | |
815 | $size = $this->_upscale($size) * self::FONT_SCALE; | |
816 | ||
817 | // imagettfbbox() converts numeric entities to their respective | |
818 | // character. Preserve any originally double encoded entities to be | |
819 | // represented as is. | |
820 | // eg: &#160; will render   rather than its character. | |
821 | $text = preg_replace('/&(#(?:x[a-fA-F0-9]+|[0-9]+);)/', '&\1', $text); | |
822 | ||
823 | $text = mb_encode_numericentity($text, array(0x0080, 0xffff, 0, 0xffff), 'UTF-8'); | |
824 | ||
825 | // FIXME: word spacing | |
826 | list($x1, , $x2) = imagettfbbox($size, 0, $font, $text); | |
827 | ||
828 | // Add additional 1pt to prevent text overflow issues | |
829 | return $this->_downscale($x2 - $x1) + 1; | |
830 | } | |
831 | ||
832 | function get_ttf_file($font) | |
833 | { | |
834 | if (strpos($font, '.ttf') === false) | |
835 | $font .= ".ttf"; | |
836 | ||
837 | /*$filename = substr(strtolower(basename($font)), 0, -4); | |
838 | ||
839 | if ( in_array($filename, Dompdf::$native_fonts) ) { | |
840 | return "arial.ttf"; | |
841 | }*/ | |
842 | ||
843 | return $font; | |
844 | } | |
845 | ||
846 | /** | |
847 | * Calculates font height, in points | |
848 | * | |
849 | * @param string $font | |
850 | * @param float $size | |
851 | * @return float | |
852 | */ | |
853 | function get_font_height($font, $size) | |
854 | { | |
855 | $size = $this->_upscale($size) * self::FONT_SCALE; | |
856 | ||
857 | $height = $this->get_font_height_actual($font, $size); | |
858 | ||
859 | return $this->_downscale($height); | |
860 | } | |
861 | ||
862 | private function get_font_height_actual($font, $size) | |
863 | { | |
864 | $font = $this->get_ttf_file($font); | |
865 | $ratio = $this->_dompdf->get_option("font_height_ratio"); | |
866 | ||
867 | // FIXME: word spacing | |
868 | list(, $y2, , , , $y1) = imagettfbbox($size, 0, $font, "MXjpqytfhl"); // Test string with ascenders, descenders and caps | |
869 | return ($y2 - $y1) * $ratio; | |
870 | } | |
871 | ||
872 | function get_font_baseline($font, $size) | |
873 | { | |
874 | $ratio = $this->_dompdf->get_option("font_height_ratio"); | |
875 | return $this->get_font_height($font, $size) / $ratio; | |
876 | } | |
877 | ||
878 | /** | |
879 | * Starts a new page | |
880 | * | |
881 | * Subsequent drawing operations will appear on the new page. | |
882 | */ | |
883 | function new_page() | |
884 | { | |
885 | $this->_page_number++; | |
886 | $this->_page_count++; | |
887 | ||
888 | $this->_img = imagecreatetruecolor($this->_actual_width, $this->_actual_height); | |
889 | ||
890 | $this->_bg_color = $this->_allocate_color($this->_bg_color_array); | |
891 | imagealphablending($this->_img, true); | |
892 | imagesavealpha($this->_img, true); | |
893 | imagefill($this->_img, 0, 0, $this->_bg_color); | |
894 | ||
895 | $this->_imgs[] = $this->_img; | |
896 | } | |
897 | ||
898 | function open_object() | |
899 | { | |
900 | // N/A | |
901 | } | |
902 | ||
903 | function close_object() | |
904 | { | |
905 | // N/A | |
906 | } | |
907 | ||
908 | function add_object() | |
909 | { | |
910 | // N/A | |
911 | } | |
912 | ||
913 | function page_text() | |
914 | { | |
915 | // N/A | |
916 | } | |
917 | ||
918 | /** | |
919 | * Streams the image directly to the browser | |
920 | * | |
921 | * @param string $filename the name of the image file (ignored) | |
922 | * @param array $options associative array, 'type' => jpeg|jpg|png, 'quality' => 0 - 100 (jpeg only) | |
923 | */ | |
924 | function stream($filename, $options = null) | |
925 | { | |
926 | ||
927 | $img = $this->_imgs[0]; | |
928 | ||
929 | if (isset($options['page']) && isset($this->_imgs[$options['page'] - 1])) { | |
930 | $img = $this->_imgs[$options['page'] - 1]; | |
931 | } | |
932 | ||
933 | // Perform any antialiasing | |
934 | if ($this->_aa_factor != 1) { | |
935 | $dst_w = $this->_actual_width / $this->_aa_factor; | |
936 | $dst_h = $this->_actual_height / $this->_aa_factor; | |
937 | $dst = imagecreatetruecolor($dst_w, $dst_h); | |
938 | imagecopyresampled($dst, $img, 0, 0, 0, 0, | |
939 | $dst_w, $dst_h, | |
940 | $this->_actual_width, $this->_actual_height); | |
941 | } else { | |
942 | $dst = $img; | |
943 | } | |
944 | ||
945 | if (!isset($options["type"])) | |
946 | $options["type"] = "png"; | |
947 | ||
948 | $type = strtolower($options["type"]); | |
949 | ||
950 | header("Cache-Control: private"); | |
951 | ||
952 | $filename = str_replace(array("\n", "'"), "", basename($filename)); | |
953 | switch ($type) { | |
954 | ||
955 | case "jpg": | |
956 | case "jpeg": | |
957 | $filename .= ".jpg"; | |
958 | break; | |
959 | ||
960 | case "png": | |
961 | default: | |
962 | $filename .= ".png"; | |
963 | break; | |
964 | } | |
965 | $attach = (isset($options["Attachment"]) && $options["Attachment"]) ? "attachment" : "inline"; | |
966 | ||
967 | // detect the character encoding of the incoming file | |
968 | $encoding = mb_detect_encoding($filename); | |
969 | $fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding); | |
970 | $encodedfallbackfilename = rawurlencode($fallbackfilename); | |
971 | $encodedfilename = rawurlencode($filename); | |
972 | ||
973 | header("Content-Disposition: $attach; filename=". $encodedfallbackfilename ."; filename*=UTF-8''$encodedfilename"); | |
974 | ||
975 | switch ($type) { | |
976 | ||
977 | case "jpg": | |
978 | case "jpeg": | |
979 | if (!isset($options["quality"])) | |
980 | $options["quality"] = 75; | |
981 | ||
982 | header("Content-type: image/jpeg"); | |
983 | imagejpeg($dst, '', $options["quality"]); | |
984 | break; | |
985 | ||
986 | case "png": | |
987 | default: | |
988 | header("Content-type: image/png"); | |
989 | imagepng($dst); | |
990 | break; | |
991 | } | |
992 | ||
993 | if ($this->_aa_factor != 1) | |
994 | imagedestroy($dst); | |
995 | } | |
996 | ||
997 | /** | |
998 | * Returns the PNG as a string | |
999 | * | |
1000 | * @param array $options associative array, 'type' => jpeg|jpg|png, 'quality' => 0 - 100 (jpeg only) | |
1001 | * @return string | |
1002 | */ | |
1003 | function output($options = null) | |
1004 | { | |
1005 | ||
1006 | $img = $this->_imgs[0]; | |
1007 | ||
1008 | if (isset($options['page']) && isset($this->_imgs[$options['page'] - 1])) { | |
1009 | $img = $this->_imgs[$options['page'] - 1]; | |
1010 | } | |
1011 | ||
1012 | if ($this->_aa_factor != 1) { | |
1013 | $dst_w = $this->_actual_width / $this->_aa_factor; | |
1014 | $dst_h = $this->_actual_height / $this->_aa_factor; | |
1015 | $dst = imagecreatetruecolor($dst_w, $dst_h); | |
1016 | imagecopyresampled($dst, $img, 0, 0, 0, 0, | |
1017 | $dst_w, $dst_h, | |
1018 | $this->_actual_width, $this->_actual_height); | |
1019 | } else { | |
1020 | $dst = $img; | |
1021 | } | |
1022 | ||
1023 | if (!isset($options["type"])) | |
1024 | $options["type"] = "png"; | |
1025 | ||
1026 | $type = $options["type"]; | |
1027 | ||
1028 | ob_start(); | |
1029 | ||
1030 | switch ($type) { | |
1031 | ||
1032 | case "jpg": | |
1033 | case "jpeg": | |
1034 | if (!isset($options["quality"])) | |
1035 | $options["quality"] = 75; | |
1036 | ||
1037 | imagejpeg($dst, '', $options["quality"]); | |
1038 | break; | |
1039 | ||
1040 | case "png": | |
1041 | default: | |
1042 | imagepng($dst); | |
1043 | break; | |
1044 | } | |
1045 | ||
1046 | $image = ob_get_clean(); | |
1047 | ||
1048 | if ($this->_aa_factor != 1) | |
1049 | imagedestroy($dst); | |
1050 | ||
1051 | return $image; | |
1052 | } | |
1053 | ||
1054 | ||
1055 | } |