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<?php |
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/* |
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* This file is part of the kaloa/image package. |
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* |
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* For full copyright and license information, please view the LICENSE file |
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* that was distributed with this source code. |
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*/ |
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namespace Kaloa\Image; |
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use Kaloa\Image\Filter\FilterInterface; |
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use Kaloa\Image\ImageException; |
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use Kaloa\Image\ImageFactory; |
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/** |
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* |
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*/ |
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final class Image |
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{ |
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/** |
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* |
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* @var resource |
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*/ |
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private $resource = null; |
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const TYPE_UNKNOWN = 'application/octet-stream'; |
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const TYPE_JPEG = 'image/jpeg'; |
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const TYPE_PNG = 'image/png'; |
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const TYPE_GIF = 'image/gif'; |
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const TYPE_BMP = 'image/x-windows-bmp'; |
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const TYPE_TIFF = 'image/tiff'; |
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/** |
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* |
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* @var resource |
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*/ |
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private $mimeType = null; |
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/** |
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* |
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* @var ImageFactory |
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*/ |
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private $factory; |
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/** |
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* |
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* @param ImageFactory $factory |
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*/ |
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public function __construct(ImageFactory $factory) |
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{ |
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$this->mimeType = self::TYPE_UNKNOWN; |
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$this->factory = $factory; |
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} |
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public function __call($name, $arguments) |
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{ |
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if (!$this->factory->_hasFilter($name)) { |
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throw new ImageException('Unknown filter or unknown method: ' |
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. $name); |
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} |
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$this->filter($this->factory->_getFilterInstance($name, $arguments)); |
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return $this; |
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} |
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private function create($resource) |
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{ |
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$this->resource = $resource; |
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} |
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/** |
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* |
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* |
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* @param string $binary |
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* @return string TYPE_* constant |
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*/ |
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private function getMimeTypeFromBinary($binary) |
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{ |
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$type = self::TYPE_UNKNOWN; |
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switch (true) { |
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case (1 === preg_match('/\A\xff\xd8\xff/', $binary)): |
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$type = self::TYPE_JPEG; |
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break; |
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case (1 === preg_match('/\AGIF8[79]a/', $binary)): |
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$type = self::TYPE_GIF; |
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break; |
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case (1 === preg_match('/\A\x89PNG\x0d\x0a/', $binary)): |
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$type = self::TYPE_PNG; |
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break; |
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case (1 === preg_match('/\ABM/', $binary)): |
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$type = self::TYPE_BMP; |
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break; |
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case (1 === preg_match('/\A\x49\x49(?:\x2a\x00|\x00\x4a)/', |
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$binary)): |
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$type = self::TYPE_TIFF; |
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break; |
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case (1 === preg_match('/\AFORM.{4}ILBM/', $binary)): |
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/** TODO Find out what this is */ |
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$type = self::TYPE_UNKNOWN; |
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break; |
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default: |
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$type = self::TYPE_UNKNOWN; |
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break; |
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} |
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return $type; |
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} |
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public function getMimeType() |
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{ |
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return $this->mimeType; |
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} |
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public function createFromPath($path) |
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{ |
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return $this->createFromString(file_get_contents($path)); |
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} |
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public function createFromGd($resource) |
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{ |
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$this->create($resource); |
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return $this; |
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} |
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public function createFromString($imageData) |
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{ |
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$this->mimeType = $this->getMimeTypeFromBinary($imageData); |
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$this->create(imagecreatefromstring($imageData)); |
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return $this; |
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} |
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public function filter(FilterInterface $filter) |
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{ |
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$this->resource = $filter->render($this); |
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return $this; |
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} |
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public function isInitialized() |
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{ |
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return ($this->resource !== null); |
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} |
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public function getResource() |
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{ |
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if (!$this->isInitialized()) { |
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throw new ImageException('Image is not initialized'); |
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} |
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return $this->resource; |
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} |
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/** |
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* Output image directly |
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* |
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* Appopriate MIME types will be set. |
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*/ |
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public function output() |
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{ |
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switch ($this->mimeType) { |
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case self::TYPE_JPEG: |
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header('Content-Type: image/jpeg'); |
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imagejpeg($this->resource); |
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break; |
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case self::TYPE_PNG: |
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header('Content-Type: image/png'); |
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imagepng($this->resource); |
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break; |
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case self::TYPE_GIF: |
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header('Content-Type: image/gif'); |
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imagegif($this->resource); |
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break; |
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case self::TYPE_BMP: |
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header('Content-Type: image/x-windows-bmp'); |
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imagewbmp($this->resource); |
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break; |
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case self::TYPE_TIFF: |
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/** TODO */ |
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header('Content-Type: image/x-windows-bmp'); |
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imagewbmp($this->resource); |
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break; |
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case self::TYPE_UNKNOWN: |
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/** TODO */ |
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header('Content-Type: image/png'); |
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imagepng($this->resource); |
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break; |
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} |
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} |
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/** |
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* |
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* @return string Binary string containing image data |
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*/ |
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public function outputRaw() |
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{ |
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ob_start(); |
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switch ($this->mimeType) { |
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case self::TYPE_JPEG: |
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imagejpeg($this->resource); |
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break; |
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case self::TYPE_PNG: |
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imagepng($this->resource); |
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break; |
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case self::TYPE_GIF: |
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imagegif($this->resource); |
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break; |
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case self::TYPE_BMP: |
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imagewbmp($this->resource); |
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break; |
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case self::TYPE_TIFF: |
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/** TODO */ |
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imagewbmp($this->resource); |
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break; |
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case self::TYPE_UNKNOWN: |
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/** TODO */ |
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imagepng($this->resource); |
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break; |
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} |
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return ob_get_clean(); |
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} |
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/** |
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* |
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* @return ImageFactory |
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*/ |
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public function getFactory() |
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{ |
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return $this->factory; |
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} |
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/** |
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* |
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* @param ImageFactory $factory |
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*/ |
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public function setFactory(ImageFactory $factory) |
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{ |
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$this->factory = $factory; |
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} |
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/** |
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* |
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*/ |
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public function __clone() |
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{ |
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if (null !== $this->resource) { |
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$this->createFromString($this->outputRaw()); |
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} |
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} |
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} |
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Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..