--- /dev/null
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * GraphicsMagick Image Driver.
+ *
+ * @package Image
+ * @author Kohana Team
+ * @copyright (c) 2007-2008 Kohana Team
+ * @license http://kohanaphp.com/license.html
+ */
+class Image_GraphicsMagick_Driver extends Image_Driver {
+
+ // Directory that GM is installed in
+ protected $dir = '';
+
+ // Command extension (exe for windows)
+ protected $ext = '';
+
+ // Temporary image filename
+ protected $tmp_image;
+
+ /**
+ * Attempts to detect the GraphicsMagick installation directory.
+ *
+ * @throws Kohana_Exception
+ * @param array configuration
+ * @return void
+ */
+ public function __construct($config)
+ {
+ if (empty($config['directory']))
+ {
+ // Attempt to locate GM by using "which" (only works for *nix!)
+ if ( ! is_file($path = exec('which gm')))
+ throw new Kohana_Exception('image.graphicsmagick.not_found');
+
+ $config['directory'] = dirname($path);
+ }
+
+ // Set the command extension
+ $this->ext = (PHP_SHLIB_SUFFIX === 'dll') ? '.exe' : '';
+
+ // Check to make sure the provided path is correct
+ if ( ! is_file(realpath($config['directory']).'/gm'.$this->ext))
+ throw new Kohana_Exception('image.graphicsmagick.not_found', 'gm'.$this->ext);
+
+
+ // Set the installation directory
+ $this->dir = str_replace('\\', '/', realpath($config['directory'])).'/';
+ }
+
+ /**
+ * Creates a temporary image and executes the given actions. By creating a
+ * temporary copy of the image before manipulating it, this process is atomic.
+ */
+ public function process($image, $actions, $dir, $file, $render = FALSE)
+ {
+ // We only need the filename
+ $image = $image['file'];
+
+ // Unique temporary filename
+ $this->tmp_image = $dir.'k2img--'.sha1(time().$dir.$file).substr($file, strrpos($file, '.'));
+
+ // Copy the image to the temporary file
+ copy($image, $this->tmp_image);
+
+ // Quality change is done last
+ $quality = (int) arr::remove('quality', $actions);
+
+ // Use 95 for the default quality
+ empty($quality) and $quality = 95;
+
+ // All calls to these will need to be escaped, so do it now
+ $this->cmd_image = escapeshellarg($this->tmp_image);
+ $this->new_image = ($render)? $this->cmd_image : escapeshellarg($dir.$file);
+
+ if ($status = $this->execute($actions))
+ {
+ // Use convert to change the image into its final version. This is
+ // done to allow the file type to change correctly, and to handle
+ // the quality conversion in the most effective way possible.
+ if ($error = exec(escapeshellcmd($this->dir.'gm'.$this->ext.' convert').' -quality '.$quality.'% '.$this->cmd_image.' '.$this->new_image))
+ {
+ $this->errors[] = $error;
+ }
+ else
+ {
+ // Output the image directly to the browser
+ if ($render !== FALSE)
+ {
+ $contents = file_get_contents($this->tmp_image);
+ switch (substr($file, strrpos($file, '.') + 1))
+ {
+ case 'jpg':
+ case 'jpeg':
+ header('Content-Type: image/jpeg');
+ break;
+ case 'gif':
+ header('Content-Type: image/gif');
+ break;
+ case 'png':
+ header('Content-Type: image/png');
+ break;
+ }
+ echo $contents;
+ }
+ }
+ }
+
+ // Remove the temporary image
+ unlink($this->tmp_image);
+ $this->tmp_image = '';
+
+ return $status;
+ }
+
+ public function crop($prop)
+ {
+ // Sanitize and normalize the properties into geometry
+ $this->sanitize_geometry($prop);
+
+ // Set the IM geometry based on the properties
+ $geometry = escapeshellarg($prop['width'].'x'.$prop['height'].'+'.$prop['left'].'+'.$prop['top']);
+
+ if ($error = exec(escapeshellcmd($this->dir.'gm'.$this->ext.' convert').' -crop '.$geometry.' '.$this->cmd_image.' '.$this->cmd_image))
+ {
+ $this->errors[] = $error;
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ public function flip($dir)
+ {
+ // Convert the direction into a GM command
+ $dir = ($dir === Image::HORIZONTAL) ? '-flop' : '-flip';
+
+ if ($error = exec(escapeshellcmd($this->dir.'gm'.$this->ext.' convert').' '.$dir.' '.$this->cmd_image.' '.$this->cmd_image))
+ {
+ $this->errors[] = $error;
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ public function resize($prop)
+ {
+ switch ($prop['master'])
+ {
+ case Image::WIDTH: // Wx
+ $dim = escapeshellarg($prop['width'].'x');
+ break;
+ case Image::HEIGHT: // xH
+ $dim = escapeshellarg('x'.$prop['height']);
+ break;
+ case Image::AUTO: // WxH
+ $dim = escapeshellarg($prop['width'].'x'.$prop['height']);
+ break;
+ case Image::NONE: // WxH!
+ $dim = escapeshellarg($prop['width'].'x'.$prop['height'].'!');
+ break;
+ }
+
+ // Use "convert" to change the width and height
+ if ($error = exec(escapeshellcmd($this->dir.'gm'.$this->ext.' convert').' -resize '.$dim.' '.$this->cmd_image.' '.$this->cmd_image))
+ {
+ $this->errors[] = $error;
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ public function rotate($amt)
+ {
+ if ($error = exec(escapeshellcmd($this->dir.'gm'.$this->ext.' convert').' -rotate '.escapeshellarg($amt).' -background transparent '.$this->cmd_image.' '.$this->cmd_image))
+ {
+ $this->errors[] = $error;
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ public function sharpen($amount)
+ {
+ // Set the sigma, radius, and amount. The amount formula allows a nice
+ // spread between 1 and 100 without pixelizing the image badly.
+ $sigma = 0.5;
+ $radius = $sigma * 2;
+ $amount = round(($amount / 80) * 3.14, 2);
+
+ // Convert the amount to an GM command
+ $sharpen = escapeshellarg($radius.'x'.$sigma.'+'.$amount.'+0');
+
+ if ($error = exec(escapeshellcmd($this->dir.'gm'.$this->ext.' convert').' -unsharp '.$sharpen.' '.$this->cmd_image.' '.$this->cmd_image))
+ {
+ $this->errors[] = $error;
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ protected function properties()
+ {
+ return array_slice(getimagesize($this->tmp_image), 0, 2, FALSE);
+ }
+
+} // End Image GraphicsMagick Driver
\ No newline at end of file
projects / speedfreak / blobdiff