mail-boxes-etc / lib / dompdf / src / FrameDecorator / Image.php

Image.php in MBE eShip trunk, at lib/dompdf/src/FrameDecorator/Image.php

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1	<?php
2	/**
3	* @package dompdf
4	* @link https://github.com/dompdf/dompdf
5	* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
6	*/
7	namespace Dompdf\FrameDecorator;
8
9	use Dompdf\Dompdf;
10	use Dompdf\Frame;
11	use Dompdf\Helpers;
12	use Dompdf\Image\Cache;
13
14	/**
15	* Decorates frames for image layout and rendering
16	*
17	* @package dompdf
18	*/
19	class Image extends AbstractFrameDecorator
20	{
21
22	/**
23	* The path to the image file (note that remote images are
24	* downloaded locally to Options:tempDir).
25	*
26	* @var string
27	*/
28	protected $_image_url;
29
30	/**
31	* The image's file error message
32	*
33	* @var string
34	*/
35	protected $_image_msg;
36
37	/**
38	* Class constructor
39	*
40	* @param Frame $frame the frame to decorate
41	* @param DOMPDF $dompdf the document's dompdf object (required to resolve relative & remote urls)
42	*/
43	function __construct(Frame $frame, Dompdf $dompdf)
44	{
45	parent::__construct($frame, $dompdf);
46	$url = $frame->get_node()->getAttribute("src");
47
48	$debug_png = $dompdf->getOptions()->getDebugPng();
49	if ($debug_png) {
50	print '[__construct ' . $url . ']';
51	}
52
53	list($this->_image_url, /$type/, $this->_image_msg) = Cache::resolve_url(
54	$url,
55	$dompdf->getProtocol(),
56	$dompdf->getBaseHost(),
57	$dompdf->getBasePath(),
58	$dompdf->getOptions()
59	);
60
61	if (Cache::is_broken($this->_image_url) &&
62	$alt = $frame->get_node()->getAttribute("alt")
63	) {
64	$fontMetrics = $dompdf->getFontMetrics();
65	$style = $frame->get_style();
66	$font = $style->font_family;
67	$size = $style->font_size;
68	$word_spacing = $style->word_spacing;
69	$letter_spacing = $style->letter_spacing;
70
71	$style->width = (4 / 3) * $fontMetrics->getTextWidth($alt, $font, $size, $word_spacing, $letter_spacing);
72	$style->height = $fontMetrics->getFontHeight($font, $size);
73	}
74	}
75
76	/**
77	* Get the intrinsic pixel dimensions of the image.
78	*
79	* @return array Width and height as `float\|int`.
80	*/
81	public function get_intrinsic_dimensions(): array
82	{
83	[$width, $height] = Helpers::dompdf_getimagesize($this->_image_url, $this->_dompdf->getHttpContext());
84
85	return [$width, $height];
86	}
87
88	/**
89	* Resample the given pixel length according to dpi.
90	*
91	* @param float\|int $length
92	* @return float
93	*/
94	public function resample($length): float
95	{
96	$dpi = $this->_dompdf->getOptions()->getDpi();
97	return ($length * 72) / $dpi;
98	}
99
100	/**
101	* Return the image's url
102	*
103	* @return string The url of this image
104	*/
105	function get_image_url()
106	{
107	return $this->_image_url;
108	}
109
110	/**
111	* Return the image's error message
112	*
113	* @return string The image's error message
114	*/
115	function get_image_msg()
116	{
117	return $this->_image_msg;
118	}
119
120	}
121