quickwebp / includes / vendor / intervention / image / src / Intervention / Image / AbstractDriver.php

AbstractDriver.php in QuickWebP – WebP & AVIF Image Optimizer, Compression & SEO for WordPress 3.2.1, at includes/vendor/intervention/image/src/Intervention/Image/AbstractDriver.php

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1	<?php
2
3	namespace Intervention\Image;
4
5	use Intervention\Image\Exception\NotSupportedException;
6
7	abstract class AbstractDriver
8	{
9	/**
10	* Decoder instance to init images from
11	*
12	* @var \Intervention\Image\AbstractDecoder
13	*/
14	public $decoder;
15
16	/**
17	* Image encoder instance
18	*
19	* @var \Intervention\Image\AbstractEncoder
20	*/
21	public $encoder;
22
23	/**
24	* Creates new image instance
25	*
26	* @param int $width
27	* @param int $height
28	* @param string $background
29	* @return \Intervention\Image\Image
30	*/
31	abstract public function newImage($width, $height, $background);
32
33	/**
34	* Reads given string into color object
35	*
36	* @param string $value
37	* @return AbstractColor
38	*/
39	abstract public function parseColor($value);
40
41	/**
42	* Checks if core module installation is available
43	*
44	* @return boolean
45	*/
46	abstract protected function coreAvailable();
47
48	/**
49	* Returns clone of given core
50	*
51	* @return mixed
52	*/
53	public function cloneCore($core)
54	{
55	return clone $core;
56	}
57
58	/**
59	* Initiates new image from given input
60	*
61	* @param mixed $data
62	* @return \Intervention\Image\Image
63	*/
64	public function init($data)
65	{
66	return $this->decoder->init($data);
67	}
68
69	/**
70	* Encodes given image
71	*
72	* @param Image $image
73	* @param string $format
74	* @param int $quality
75	* @return \Intervention\Image\Image
76	*/
77	public function encode($image, $format, $quality)
78	{
79	return $this->encoder->process($image, $format, $quality);
80	}
81
82	/**
83	* Executes named command on given image
84	*
85	* @param Image $image
86	* @param string $name
87	* @param array $arguments
88	* @return \Intervention\Image\Commands\AbstractCommand
89	*/
90	public function executeCommand($image, $name, $arguments)
91	{
92	$commandName = $this->getCommandClassName($name);
93	$command = new $commandName($arguments);
94	$command->execute($image);
95
96	return $command;
97	}
98
99	/**
100	* Returns classname of given command name
101	*
102	* @param string $name
103	* @return string
104	*/
105	private function getCommandClassName($name)
106	{
107	if (extension_loaded('mbstring')) {
108	$name = mb_strtoupper(mb_substr($name, 0, 1)) . mb_substr($name, 1);
109	} else {
110	$name = strtoupper(substr($name, 0, 1)) . substr($name, 1);
111	}
112
113	$drivername = $this->getDriverName();
114	$classnameLocal = sprintf('\Intervention\Image\%s\Commands\%sCommand', $drivername, ucfirst($name));
115	$classnameGlobal = sprintf('\Intervention\Image\Commands\%sCommand', ucfirst($name));
116
117	if (class_exists($classnameLocal)) {
118	return $classnameLocal;
119	} elseif (class_exists($classnameGlobal)) {
120	return $classnameGlobal;
121	}
122
123	throw new NotSupportedException(
124	"Command ({$name}) is not available for driver ({$drivername})."
125	);
126	}
127
128	/**
129	* Returns name of current driver instance
130	*
131	* @return string
132	*/
133	public function getDriverName()
134	{
135	$reflect = new \ReflectionClass($this);
136	$namespace = $reflect->getNamespaceName();
137
138	return substr(strrchr($namespace, "\\"), 1);
139	}
140	}
141