yatra / vendor / dompdf / dompdf / src / Renderer / ListBullet.php

ListBullet.php in Yatra – Travel Booking & Tour Operator Software 3.0.16, at vendor/dompdf/dompdf/src/Renderer/ListBullet.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\Renderer;
8
9	use Dompdf\Helpers;
10	use Dompdf\Frame;
11	use Dompdf\FrameDecorator\ListBullet as ListBulletFrameDecorator;
12	use Dompdf\FrameDecorator\ListBulletImage;
13	use Dompdf\Image\Cache;
14
15	/**
16	* Renders list bullets
17	*
18	* @package dompdf
19	*/
20	class ListBullet extends AbstractRenderer
21	{
22	/**
23	* @param $type
24	* @return mixed\|string
25	*/
26	static function get_counter_chars($type)
27	{
28	static $cache = [];
29
30	if (isset($cache[$type])) {
31	return $cache[$type];
32	}
33
34	$uppercase = false;
35	$text = "";
36
37	switch ($type) {
38	case "decimal-leading-zero":
39	case "decimal":
40	case "1":
41	return "0123456789";
42
43	case "upper-alpha":
44	case "upper-latin":
45	case "A":
46	$uppercase = true;
47	case "lower-alpha":
48	case "lower-latin":
49	case "a":
50	$text = "abcdefghijklmnopqrstuvwxyz";
51	break;
52
53	case "upper-roman":
54	case "I":
55	$uppercase = true;
56	case "lower-roman":
57	case "i":
58	$text = "ivxlcdm";
59	break;
60
61	case "lower-greek":
62	for ($i = 0; $i < 24; $i++) {
63	$text .= Helpers::unichr($i + 944);
64	}
65	break;
66	}
67
68	if ($uppercase) {
69	$text = strtoupper($text);
70	}
71
72	return $cache[$type] = "$text.";
73	}
74
75	/**
76	* @param int $n
77	* @param string $type
78	* @param int\|null $pad
79	*
80	* @return string
81	*/
82	private function make_counter($n, $type, $pad = null)
83	{
84	$n = intval($n);
85	$text = "";
86	$uppercase = false;
87
88	switch ($type) {
89	case "decimal-leading-zero":
90	case "decimal":
91	case "1":
92	if ($pad) {
93	$text = str_pad($n, $pad, "0", STR_PAD_LEFT);
94	} else {
95	$text = $n;
96	}
97	break;
98
99	case "upper-alpha":
100	case "upper-latin":
101	case "A":
102	$uppercase = true;
103	case "lower-alpha":
104	case "lower-latin":
105	case "a":
106	$text = chr((($n - 1) % 26) + ord('a'));
107	break;
108
109	case "upper-roman":
110	case "I":
111	$uppercase = true;
112	case "lower-roman":
113	case "i":
114	$text = Helpers::dec2roman($n);
115	break;
116
117	case "lower-greek":
118	$text = Helpers::unichr($n + 944);
119	break;
120	}
121
122	if ($uppercase) {
123	$text = strtoupper($text);
124	}
125
126	return "$text.";
127	}
128
129	/**
130	* @param ListBulletFrameDecorator $frame
131	*/
132	function render(Frame $frame)
133	{
134	$li = $frame->get_parent();
135	$style = $frame->get_style();
136
137	$this->_set_opacity($frame->get_opacity($style->opacity));
138
139	// Don't render bullets twice if the list item was split
140	if ($li->is_split_off) {
141	return;
142	}
143
144	$font_family = $style->font_family;
145	$font_size = $style->font_size;
146	$baseline = $this->_canvas->get_font_baseline($font_family, $font_size);
147
148	// Handle list-style-image
149	// If list style image is requested but missing, fall back to predefined types
150	if ($frame instanceof ListBulletImage && !Cache::is_broken($img = $frame->get_image_url())) {
151	[$x, $y] = $frame->get_position();
152	$w = $frame->get_width();
153	$h = $frame->get_height();
154	$y += $baseline - $h;
155
156	$this->_canvas->image($img, $x, $y, $w, $h);
157	} else {
158	$bullet_style = $style->list_style_type;
159
160	switch ($bullet_style) {
161	default:
162	case "disc":
163	case "circle":
164	[$x, $y] = $frame->get_position();
165	$offset = $font_size * ListBulletFrameDecorator::BULLET_OFFSET;
166	$r = ($font_size * ListBulletFrameDecorator::BULLET_SIZE) / 2;
167	$x += $r;
168	$y += $baseline - $r - $offset;
169	$o = $font_size * ListBulletFrameDecorator::BULLET_THICKNESS;
170	$this->_canvas->circle($x, $y, $r, $style->color, $o, null, $bullet_style !== "circle");
171	break;
172
173	case "square":
174	[$x, $y] = $frame->get_position();
175	$offset = $font_size * ListBulletFrameDecorator::BULLET_OFFSET;
176	$w = $font_size * ListBulletFrameDecorator::BULLET_SIZE;
177	$y += $baseline - $w - $offset;
178	$this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
179	break;
180
181	case "decimal-leading-zero":
182	case "decimal":
183	case "lower-alpha":
184	case "lower-latin":
185	case "lower-roman":
186	case "lower-greek":
187	case "upper-alpha":
188	case "upper-latin":
189	case "upper-roman":
190	case "1": // HTML 4.0 compatibility
191	case "a":
192	case "i":
193	case "A":
194	case "I":
195	$pad = null;
196	if ($bullet_style === "decimal-leading-zero") {
197	$pad = strlen($li->get_parent()->get_node()->getAttribute("dompdf-children-count"));
198	}
199
200	$node = $frame->get_node();
201
202	if (!$node->hasAttribute("dompdf-counter")) {
203	return;
204	}
205
206	$index = $node->getAttribute("dompdf-counter");
207	$text = $this->make_counter($index, $bullet_style, $pad);
208
209	if (trim($text) === "") {
210	return;
211	}
212
213	$word_spacing = $style->word_spacing;
214	$letter_spacing = $style->letter_spacing;
215	$text_width = $this->_dompdf->getFontMetrics()->getTextWidth($text, $font_family, $font_size, $word_spacing, $letter_spacing);
216
217	[$x, $y] = $frame->get_position();
218	// Correct for static frame width applied by positioner
219	$x += $frame->get_width() - $text_width;
220
221	$this->_canvas->text($x, $y, $text,
222	$font_family, $font_size,
223	$style->color, $word_spacing, $letter_spacing);
224
225	case "none":
226	break;
227	}
228	}
229
230	$id = $frame->get_node()->getAttribute("id");
231	if (strlen($id) > 0) {
232	$this->_canvas->add_named_dest($id);
233	}
234	}
235	}
236