1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
<?php
/**
* BaconQrCode
*
* @link http://github.com/Bacon/BaconQrCode For the canonical source repository
* @copyright 2013 Ben 'DASPRiD' Scholzen
* @license http://opensource.org/licenses/BSD-2-Clause Simplified BSD License
*/
namespace BaconQrCode\Renderer\Image;
use BaconQrCode\Exception;
use BaconQrCode\Renderer\Color\ColorInterface;
use SimpleXMLElement;
/**
* SVG backend.
*/
class Svg extends AbstractRenderer
{
/**
* SVG resource.
*
* @var SimpleXMLElement
*/
protected $svg;
/**
* Colors used for drawing.
*
* @var array
*/
protected $colors = array();
/**
* Prototype IDs.
*
* @var array
*/
protected $prototypeIds = array();
/**
* init(): defined by RendererInterface.
*
* @see ImageRendererInterface::init()
* @return void
*/
public function init()
{
$this->svg = new SimpleXMLElement(
'<?xml version="1.0" encoding="UTF-8"?>'
. '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"/>'
);
$this->svg->addAttribute('version', '1.1');
$this->svg->addAttribute('width', $this->finalWidth . 'px');
$this->svg->addAttribute('height', $this->finalHeight . 'px');
$this->svg->addAttribute('viewBox', '0 0 ' . $this->finalWidth . ' ' . $this->finalHeight);
$this->svg->addChild('defs');
}
/**
* addColor(): defined by RendererInterface.
*
* @see ImageRendererInterface::addColor()
* @param string $id
* @param ColorInterface $color
* @return void
* @throws Exception\InvalidArgumentException
*/
public function addColor($id, ColorInterface $color)
{
$this->colors[$id] = (string) $color->toRgb();
}
/**
* drawBackground(): defined by RendererInterface.
*
* @see ImageRendererInterface::drawBackground()
* @param string $colorId
* @return void
*/
public function drawBackground($colorId)
{
$rect = $this->svg->addChild('rect');
$rect->addAttribute('x', 0);
$rect->addAttribute('y', 0);
$rect->addAttribute('width', $this->finalWidth);
$rect->addAttribute('height', $this->finalHeight);
$rect->addAttribute('fill', '#' . $this->colors[$colorId]);
}
/**
* drawBlock(): defined by RendererInterface.
*
* @see ImageRendererInterface::drawBlock()
* @param integer $x
* @param integer $y
* @param string $colorId
* @return void
*/
public function drawBlock($x, $y, $colorId)
{
$use = $this->svg->addChild('use');
$use->addAttribute('x', $x);
$use->addAttribute('y', $y);
$use->addAttribute(
'xlink:href',
$this->getRectPrototypeId($colorId),
'http://www.w3.org/1999/xlink'
);
}
/**
* getByteStream(): defined by RendererInterface.
*
* @see ImageRendererInterface::getByteStream()
* @return string
*/
public function getByteStream()
{
return $this->svg->asXML();
}
/**
* Get the prototype ID for a color.
*
* @param integer $colorId
* @return string
*/
protected function getRectPrototypeId($colorId)
{
if (!isset($this->prototypeIds[$colorId])) {
$id = 'r' . dechex(count($this->prototypeIds));
$rect = $this->svg->defs->addChild('rect');
$rect->addAttribute('id', $id);
$rect->addAttribute('width', $this->blockSize);
$rect->addAttribute('height', $this->blockSize);
$rect->addAttribute('fill', '#' . $this->colors[$colorId]);
$this->prototypeIds[$colorId] = '#' . $id;
}
return $this->prototypeIds[$colorId];
}
}
|