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-rw-r--r--admin/include/image.class.php1248
1 files changed, 624 insertions, 624 deletions
diff --git a/admin/include/image.class.php b/admin/include/image.class.php
index 3cc8ce214..067cc9b08 100644
--- a/admin/include/image.class.php
+++ b/admin/include/image.class.php
@@ -1,625 +1,625 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | Piwigo - a PHP based photo gallery |
-// +-----------------------------------------------------------------------+
-// | Copyright(C) 2008-2011 Piwigo Team http://piwigo.org |
-// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
-// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
-// +-----------------------------------------------------------------------+
-// | This program is free software; you can redistribute it and/or modify |
-// | it under the terms of the GNU General Public License as published by |
-// | the Free Software Foundation |
-// | |
-// | This program is distributed in the hope that it will be useful, but |
-// | WITHOUT ANY WARRANTY; without even the implied warranty of |
-// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
-// | General Public License for more details. |
-// | |
-// | You should have received a copy of the GNU General Public License |
-// | along with this program; if not, write to the Free Software |
-// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
-// | USA. |
-// +-----------------------------------------------------------------------+
-
-// +-----------------------------------------------------------------------+
-// | Image Interface |
-// +-----------------------------------------------------------------------+
-
-// Define all needed methods for image class
-interface imageInterface
-{
- function get_width();
-
- function get_height();
-
- function set_compression_quality($quality);
-
- function crop($width, $height, $x, $y);
-
- function strip();
-
- function rotate($rotation);
-
- function resize($width, $height);
-
- function write($destination_filepath);
-}
-
-// +-----------------------------------------------------------------------+
-// | Main Image Class |
-// +-----------------------------------------------------------------------+
-
-class pwg_image
-{
- var $image;
- var $library = '';
- var $source_filepath = '';
-
- function __construct($source_filepath, $library=null)
- {
- $this->source_filepath = $source_filepath;
-
- trigger_action('load_image_library', array(&$this) );
-
- if (is_object($this->image))
- {
- return; // A plugin may have load its own library
- }
-
- $extension = strtolower(get_extension($source_filepath));
-
- if (!in_array($extension, array('jpg', 'jpeg', 'png', 'gif')))
- {
- die('[Image] unsupported file extension');
- }
-
- if (!($this->library = self::get_library($library, $extension)))
- {
- die('No image library available on your server.');
- }
-
- $class = 'image_'.$this->library;
- $this->image = new $class($source_filepath);
- }
-
- // Unknow methods will be redirected to image object
- function __call($method, $arguments)
- {
- return call_user_func_array(array($this->image, $method), $arguments);
- }
-
- // Piwigo resize function
- function pwg_resize($destination_filepath, $max_width, $max_height, $quality, $automatic_rotation=true, $strip_metadata=false, $crop=false, $follow_orientation=true)
- {
- $starttime = get_moment();
-
- // width/height
- $source_width = $this->image->get_width();
- $source_height = $this->image->get_height();
-
- // Crop image
- if ($crop)
- {
- $x = 0;
- $y = 0;
-
- if ($source_width < $source_height and $follow_orientation)
- {
- list($max_width, $max_height) = array($max_height, $max_width);
- }
-
- $img_ratio = $source_width / $source_height;
- $dest_ratio = $max_width / $max_height;
-
- if($dest_ratio > $img_ratio)
- {
- $destHeight = round($source_width * $max_height / $max_width);
- $y = round(($source_height - $destHeight) / 2 );
- $source_height = $destHeight;
- }
- elseif ($dest_ratio < $img_ratio)
- {
- $destWidth = round($source_height * $max_width / $max_height);
- $x = round(($source_width - $destWidth) / 2 );
- $source_width = $destWidth;
- }
-
- $this->image->crop($source_width, $source_height, $x, $y);
- }
-
- $rotation = null;
- if ($automatic_rotation)
- {
- $rotation = self::get_rotation_angle($this->source_filepath);
- }
- $resize_dimensions = self::get_resize_dimensions($source_width, $source_height, $max_width, $max_height, $rotation);
-
- // testing on height is useless in theory: if width is unchanged, there
- // should be no resize, because width/height ratio is not modified.
- if ($resize_dimensions['width'] == $source_width and $resize_dimensions['height'] == $source_height)
- {
- // the image doesn't need any resize! We just copy it to the destination
- copy($this->source_filepath, $destination_filepath);
- return $this->get_resize_result($destination_filepath, $resize_dimensions['width'], $resize_dimensions['height'], $starttime);
- }
-
- $this->image->set_compression_quality($quality);
-
- if ($strip_metadata)
- {
- // we save a few kilobytes. For example a thumbnail with metadata weights 25KB, without metadata 7KB.
- $this->image->strip();
- }
-
- $this->image->resize($resize_dimensions['width'], $resize_dimensions['height']);
-
- if (isset($rotation))
- {
- $this->image->rotate($rotation);
- }
-
- $this->image->write($destination_filepath);
-
- // everything should be OK if we are here!
- return $this->get_resize_result($destination_filepath, $resize_dimensions['width'], $resize_dimensions['height'], $starttime);
- }
-
- static function get_resize_dimensions($width, $height, $max_width, $max_height, $rotation=null)
- {
- $rotate_for_dimensions = false;
- if (isset($rotation) and in_array(abs($rotation), array(90, 270)))
- {
- $rotate_for_dimensions = true;
- }
-
- if ($rotate_for_dimensions)
- {
- list($width, $height) = array($height, $width);
- }
-
- $ratio_width = $width / $max_width;
- $ratio_height = $height / $max_height;
- $destination_width = $width;
- $destination_height = $height;
-
- // maximal size exceeded ?
- if ($ratio_width > 1 or $ratio_height > 1)
- {
- if ($ratio_width < $ratio_height)
- {
- $destination_width = round($width / $ratio_height);
- $destination_height = $max_height;
- }
- else
- {
- $destination_width = $max_width;
- $destination_height = round($height / $ratio_width);
- }
- }
-
- if ($rotate_for_dimensions)
- {
- list($destination_width, $destination_height) = array($destination_height, $destination_width);
- }
-
- return array(
- 'width' => $destination_width,
- 'height'=> $destination_height,
- );
- }
-
- static function get_rotation_angle($source_filepath)
- {
- list($width, $height, $type) = getimagesize($source_filepath);
- if (IMAGETYPE_JPEG != $type)
- {
- return null;
- }
-
- if (!function_exists('exif_read_data'))
- {
- return null;
- }
-
- $rotation = null;
-
- $exif = exif_read_data($source_filepath);
-
- if (isset($exif['Orientation']) and preg_match('/^\s*(\d)/', $exif['Orientation'], $matches))
- {
- $orientation = $matches[1];
- if (in_array($orientation, array(3, 4)))
- {
- $rotation = 180;
- }
- elseif (in_array($orientation, array(5, 6)))
- {
- $rotation = 270;
- }
- elseif (in_array($orientation, array(7, 8)))
- {
- $rotation = 90;
- }
- }
-
- return $rotation;
- }
-
- private function get_resize_result($destination_filepath, $width, $height, $time=null)
- {
- return array(
- 'source' => $this->source_filepath,
- 'destination' => $destination_filepath,
- 'width' => $width,
- 'height' => $height,
- 'size' => floor(filesize($destination_filepath) / 1024).' KB',
- 'time' => $time ? number_format((get_moment() - $time) * 1000, 2, '.', ' ').' ms' : null,
- 'library' => $this->library,
- );
- }
-
- static function is_imagick()
- {
- return extension_loaded('imagick');
- }
-
- static function is_ext_imagick()
- {
- global $conf;
-
- if (!function_exists('exec'))
- {
- return false;
- }
- @exec($conf['ext_imagick_dir'].'convert -version', $returnarray, $returnvalue);
- if (!$returnvalue and !empty($returnarray[0]) and preg_match('/ImageMagick/i', $returnarray[0]))
- {
- return true;
- }
- return false;
- }
-
- static function is_gd()
- {
- return function_exists('gd_info');
- }
-
- static function get_library($library=null, $extension=null)
- {
- global $conf;
-
- if (is_null($library))
- {
- $library = $conf['graphics_library'];
- }
-
- // Choose image library
- switch (strtolower($library))
- {
- case 'auto':
- case 'imagick':
- if ($extension != 'gif' and self::is_imagick())
- {
- return 'imagick';
- }
- case 'ext_imagick':
- if ($extension != 'gif' and self::is_ext_imagick())
- {
- return 'ext_imagick';
- }
- case 'gd':
- if (self::is_gd())
- {
- return 'gd';
- }
- default:
- if ($library != 'auto')
- {
- // Requested library not available. Try another library
- return self::get_library('auto', $extension);
- }
- }
- return false;
- }
-
- function destroy()
- {
- if (method_exists($this->image, 'destroy'))
- {
- return $this->image->destroy();
- }
- return true;
- }
-}
-
-// +-----------------------------------------------------------------------+
-// | Class for Imagick extension |
-// +-----------------------------------------------------------------------+
-
-class image_imagick implements imageInterface
-{
- var $image;
-
- function __construct($source_filepath)
- {
- // A bug cause that Imagick class can not be extended
- $this->image = new Imagick($source_filepath);
- }
-
- function get_width()
- {
- return $this->image->getImageWidth();
- }
-
- function get_height()
- {
- return $this->image->getImageHeight();
- }
-
- function set_compression_quality($quality)
- {
- return $this->image->setImageCompressionQuality($quality);
- }
-
- function crop($width, $height, $x, $y)
- {
- return $this->image->cropImage($width, $height, $x, $y);
- }
-
- function strip()
- {
- return $this->image->stripImage();
- }
-
- function rotate($rotation)
- {
- $this->image->rotateImage(new ImagickPixel(), -$rotation);
- $this->image->setImageOrientation(Imagick::ORIENTATION_TOPLEFT);
- return true;
- }
-
- function resize($width, $height)
- {
- $this->image->setInterlaceScheme(Imagick::INTERLACE_LINE);
- return $this->image->resizeImage($width, $height, Imagick::FILTER_LANCZOS, 0.9);
- }
-
- function write($destination_filepath)
- {
- return $this->image->writeImage($destination_filepath);
- }
-}
-
-// +-----------------------------------------------------------------------+
-// | Class for ImageMagick external installation |
-// +-----------------------------------------------------------------------+
-
-class image_ext_imagick implements imageInterface
-{
- var $imagickdir = '';
- var $source_filepath = '';
- var $width = '';
- var $height = '';
- var $commands = array();
-
- function __construct($source_filepath, $imagickdir='')
- {
- $this->source_filepath = $source_filepath;
- $this->imagickdir = $imagickdir;
-
- $command = $imagickdir.'identify -format "%wx%h" "'.realpath($source_filepath).'"';
- @exec($command, $returnarray, $returnvalue);
- if($returnvalue or !preg_match('/^(\d+)x(\d+)$/', $returnarray[0], $match))
- {
- die("[External ImageMagick] Corrupt image");
- }
-
- $this->width = $match[1];
- $this->height = $match[2];
- }
-
- function add_command($command, $params=null)
- {
- $this->commands[$command] = $params;
- }
-
- function get_width()
- {
- return $this->width;
- }
-
- function get_height()
- {
- return $this->height;
- }
-
- function crop($width, $height, $x, $y)
- {
- $this->add_command('crop', $width.'x'.$height.'+'.$x.'+'.$y);
- return true;
- }
-
- function strip()
- {
- $this->add_command('strip');
- return true;
- }
-
- function rotate($rotation)
- {
- $this->add_command('rotate', -$rotation);
- $this->add_command('orient', 'top-left');
- return true;
- }
-
- function set_compression_quality($quality)
- {
- $this->add_command('quality', $quality);
- return true;
- }
-
- function resize($width, $height)
- {
- $this->add_command('interlace', 'line');
- $this->add_command('filter', 'Lanczos');
- $this->add_command('resize', $width.'x'.$height.'!');
- return true;
- }
-
- function write($destination_filepath)
- {
- $exec = $this->imagickdir.'convert';
- $exec .= ' "'.realpath($this->source_filepath).'"';
-
- foreach ($this->commands as $command => $params)
- {
- $exec .= ' -'.$command;
- if (!empty($params))
- {
- $exec .= ' '.$params;
- }
- }
-
- $dest = pathinfo($destination_filepath);
- $exec .= ' "'.realpath($dest['dirname']).'/'.$dest['basename'].'"';
- @exec($exec, $returnarray, $returnvalue);
- return !$returnvalue;
- }
-}
-
-// +-----------------------------------------------------------------------+
-// | Class for GD library |
-// +-----------------------------------------------------------------------+
-
-class image_gd implements imageInterface
-{
- var $image;
- var $quality = 95;
-
- function __construct($source_filepath)
- {
- $gd_info = gd_info();
- $extension = strtolower(get_extension($source_filepath));
-
- if (in_array($extension, array('jpg', 'jpeg')))
- {
- $this->image = imagecreatefromjpeg($source_filepath);
- }
- else if ($extension == 'png')
- {
- $this->image = imagecreatefrompng($source_filepath);
- }
- elseif ($extension == 'gif' and $gd_info['GIF Read Support'] and $gd_info['GIF Create Support'])
- {
- $this->image = imagecreatefromgif($source_filepath);
- }
- else
- {
- die('[Image GD] unsupported file extension');
- }
- }
-
- function get_width()
- {
- return imagesx($this->image);
- }
-
- function get_height()
- {
- return imagesy($this->image);
- }
-
- function crop($width, $height, $x, $y)
- {
- $dest = imagecreatetruecolor($width, $height);
-
- imagealphablending($dest, false);
- imagesavealpha($dest, true);
- if (function_exists('imageantialias'))
- {
- imageantialias($dest, true);
- }
-
- $result = imagecopymerge($dest, $this->image, 0, 0, $x, $y, $width, $height, 100);
-
- if ($result !== false)
- {
- imagedestroy($this->image);
- $this->image = $dest;
- }
- else
- {
- imagedestroy($dest);
- }
- return $result;
- }
-
- function strip()
- {
- return true;
- }
-
- function rotate($rotation)
- {
- $dest = imagerotate($this->image, $rotation, 0);
- imagedestroy($this->image);
- $this->image = $dest;
- return true;
- }
-
- function set_compression_quality($quality)
- {
- $this->quality = $quality;
- return true;
- }
-
- function resize($width, $height)
- {
- $dest = imagecreatetruecolor($width, $height);
-
- imagealphablending($dest, false);
- imagesavealpha($dest, true);
- if (function_exists('imageantialias'))
- {
- imageantialias($dest, true);
- }
-
- $result = imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $width, $height, $this->get_width(), $this->get_height());
-
- if ($result !== false)
- {
- imagedestroy($this->image);
- $this->image = $dest;
- }
- else
- {
- imagedestroy($dest);
- }
- return $result;
- }
-
- function write($destination_filepath)
- {
- $extension = strtolower(get_extension($destination_filepath));
-
- if ($extension == 'png')
- {
- imagepng($this->image, $destination_filepath);
- }
- elseif ($extension == 'gif')
- {
- imagegif($this->image, $destination_filepath);
- }
- else
- {
- imagejpeg($this->image, $destination_filepath, $this->quality);
- }
- }
-
- function destroy()
- {
- imagedestroy($this->image);
- }
-}
-
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based photo gallery |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2011 Piwigo Team http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify |
+// | it under the terms of the GNU General Public License as published by |
+// | the Free Software Foundation |
+// | |
+// | This program is distributed in the hope that it will be useful, but |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
+// | General Public License for more details. |
+// | |
+// | You should have received a copy of the GNU General Public License |
+// | along with this program; if not, write to the Free Software |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA. |
+// +-----------------------------------------------------------------------+
+
+// +-----------------------------------------------------------------------+
+// | Image Interface |
+// +-----------------------------------------------------------------------+
+
+// Define all needed methods for image class
+interface imageInterface
+{
+ function get_width();
+
+ function get_height();
+
+ function set_compression_quality($quality);
+
+ function crop($width, $height, $x, $y);
+
+ function strip();
+
+ function rotate($rotation);
+
+ function resize($width, $height);
+
+ function write($destination_filepath);
+}
+
+// +-----------------------------------------------------------------------+
+// | Main Image Class |
+// +-----------------------------------------------------------------------+
+
+class pwg_image
+{
+ var $image;
+ var $library = '';
+ var $source_filepath = '';
+
+ function __construct($source_filepath, $library=null)
+ {
+ $this->source_filepath = $source_filepath;
+
+ trigger_action('load_image_library', array(&$this) );
+
+ if (is_object($this->image))
+ {
+ return; // A plugin may have load its own library
+ }
+
+ $extension = strtolower(get_extension($source_filepath));
+
+ if (!in_array($extension, array('jpg', 'jpeg', 'png', 'gif')))
+ {
+ die('[Image] unsupported file extension');
+ }
+
+ if (!($this->library = self::get_library($library, $extension)))
+ {
+ die('No image library available on your server.');
+ }
+
+ $class = 'image_'.$this->library;
+ $this->image = new $class($source_filepath);
+ }
+
+ // Unknow methods will be redirected to image object
+ function __call($method, $arguments)
+ {
+ return call_user_func_array(array($this->image, $method), $arguments);
+ }
+
+ // Piwigo resize function
+ function pwg_resize($destination_filepath, $max_width, $max_height, $quality, $automatic_rotation=true, $strip_metadata=false, $crop=false, $follow_orientation=true)
+ {
+ $starttime = get_moment();
+
+ // width/height
+ $source_width = $this->image->get_width();
+ $source_height = $this->image->get_height();
+
+ // Crop image
+ if ($crop)
+ {
+ $x = 0;
+ $y = 0;
+
+ if ($source_width < $source_height and $follow_orientation)
+ {
+ list($max_width, $max_height) = array($max_height, $max_width);
+ }
+
+ $img_ratio = $source_width / $source_height;
+ $dest_ratio = $max_width / $max_height;
+
+ if($dest_ratio > $img_ratio)
+ {
+ $destHeight = round($source_width * $max_height / $max_width);
+ $y = round(($source_height - $destHeight) / 2 );
+ $source_height = $destHeight;
+ }
+ elseif ($dest_ratio < $img_ratio)
+ {
+ $destWidth = round($source_height * $max_width / $max_height);
+ $x = round(($source_width - $destWidth) / 2 );
+ $source_width = $destWidth;
+ }
+
+ $this->image->crop($source_width, $source_height, $x, $y);
+ }
+
+ $rotation = null;
+ if ($automatic_rotation)
+ {
+ $rotation = self::get_rotation_angle($this->source_filepath);
+ }
+ $resize_dimensions = self::get_resize_dimensions($source_width, $source_height, $max_width, $max_height, $rotation);
+
+ // testing on height is useless in theory: if width is unchanged, there
+ // should be no resize, because width/height ratio is not modified.
+ if ($resize_dimensions['width'] == $source_width and $resize_dimensions['height'] == $source_height)
+ {
+ // the image doesn't need any resize! We just copy it to the destination
+ copy($this->source_filepath, $destination_filepath);
+ return $this->get_resize_result($destination_filepath, $resize_dimensions['width'], $resize_dimensions['height'], $starttime);
+ }
+
+ $this->image->set_compression_quality($quality);
+
+ if ($strip_metadata)
+ {
+ // we save a few kilobytes. For example a thumbnail with metadata weights 25KB, without metadata 7KB.
+ $this->image->strip();
+ }
+
+ $this->image->resize($resize_dimensions['width'], $resize_dimensions['height']);
+
+ if (isset($rotation))
+ {
+ $this->image->rotate($rotation);
+ }
+
+ $this->image->write($destination_filepath);
+
+ // everything should be OK if we are here!
+ return $this->get_resize_result($destination_filepath, $resize_dimensions['width'], $resize_dimensions['height'], $starttime);
+ }
+
+ static function get_resize_dimensions($width, $height, $max_width, $max_height, $rotation=null)
+ {
+ $rotate_for_dimensions = false;
+ if (isset($rotation) and in_array(abs($rotation), array(90, 270)))
+ {
+ $rotate_for_dimensions = true;
+ }
+
+ if ($rotate_for_dimensions)
+ {
+ list($width, $height) = array($height, $width);
+ }
+
+ $ratio_width = $width / $max_width;
+ $ratio_height = $height / $max_height;
+ $destination_width = $width;
+ $destination_height = $height;
+
+ // maximal size exceeded ?
+ if ($ratio_width > 1 or $ratio_height > 1)
+ {
+ if ($ratio_width < $ratio_height)
+ {
+ $destination_width = round($width / $ratio_height);
+ $destination_height = $max_height;
+ }
+ else
+ {
+ $destination_width = $max_width;
+ $destination_height = round($height / $ratio_width);
+ }
+ }
+
+ if ($rotate_for_dimensions)
+ {
+ list($destination_width, $destination_height) = array($destination_height, $destination_width);
+ }
+
+ return array(
+ 'width' => $destination_width,
+ 'height'=> $destination_height,
+ );
+ }
+
+ static function get_rotation_angle($source_filepath)
+ {
+ list($width, $height, $type) = getimagesize($source_filepath);
+ if (IMAGETYPE_JPEG != $type)
+ {
+ return null;
+ }
+
+ if (!function_exists('exif_read_data'))
+ {
+ return null;
+ }
+
+ $rotation = null;
+
+ $exif = exif_read_data($source_filepath);
+
+ if (isset($exif['Orientation']) and preg_match('/^\s*(\d)/', $exif['Orientation'], $matches))
+ {
+ $orientation = $matches[1];
+ if (in_array($orientation, array(3, 4)))
+ {
+ $rotation = 180;
+ }
+ elseif (in_array($orientation, array(5, 6)))
+ {
+ $rotation = 270;
+ }
+ elseif (in_array($orientation, array(7, 8)))
+ {
+ $rotation = 90;
+ }
+ }
+
+ return $rotation;
+ }
+
+ private function get_resize_result($destination_filepath, $width, $height, $time=null)
+ {
+ return array(
+ 'source' => $this->source_filepath,
+ 'destination' => $destination_filepath,
+ 'width' => $width,
+ 'height' => $height,
+ 'size' => floor(filesize($destination_filepath) / 1024).' KB',
+ 'time' => $time ? number_format((get_moment() - $time) * 1000, 2, '.', ' ').' ms' : null,
+ 'library' => $this->library,
+ );
+ }
+
+ static function is_imagick()
+ {
+ return extension_loaded('imagick');
+ }
+
+ static function is_ext_imagick()
+ {
+ global $conf;
+
+ if (!function_exists('exec'))
+ {
+ return false;
+ }
+ @exec($conf['ext_imagick_dir'].'convert -version', $returnarray, $returnvalue);
+ if (!$returnvalue and !empty($returnarray[0]) and preg_match('/ImageMagick/i', $returnarray[0]))
+ {
+ return true;
+ }
+ return false;
+ }
+
+ static function is_gd()
+ {
+ return function_exists('gd_info');
+ }
+
+ static function get_library($library=null, $extension=null)
+ {
+ global $conf;
+
+ if (is_null($library))
+ {
+ $library = $conf['graphics_library'];
+ }
+
+ // Choose image library
+ switch (strtolower($library))
+ {
+ case 'auto':
+ case 'imagick':
+ if ($extension != 'gif' and self::is_imagick())
+ {
+ return 'imagick';
+ }
+ case 'ext_imagick':
+ if ($extension != 'gif' and self::is_ext_imagick())
+ {
+ return 'ext_imagick';
+ }
+ case 'gd':
+ if (self::is_gd())
+ {
+ return 'gd';
+ }
+ default:
+ if ($library != 'auto')
+ {
+ // Requested library not available. Try another library
+ return self::get_library('auto', $extension);
+ }
+ }
+ return false;
+ }
+
+ function destroy()
+ {
+ if (method_exists($this->image, 'destroy'))
+ {
+ return $this->image->destroy();
+ }
+ return true;
+ }
+}
+
+// +-----------------------------------------------------------------------+
+// | Class for Imagick extension |
+// +-----------------------------------------------------------------------+
+
+class image_imagick implements imageInterface
+{
+ var $image;
+
+ function __construct($source_filepath)
+ {
+ // A bug cause that Imagick class can not be extended
+ $this->image = new Imagick($source_filepath);
+ }
+
+ function get_width()
+ {
+ return $this->image->getImageWidth();
+ }
+
+ function get_height()
+ {
+ return $this->image->getImageHeight();
+ }
+
+ function set_compression_quality($quality)
+ {
+ return $this->image->setImageCompressionQuality($quality);
+ }
+
+ function crop($width, $height, $x, $y)
+ {
+ return $this->image->cropImage($width, $height, $x, $y);
+ }
+
+ function strip()
+ {
+ return $this->image->stripImage();
+ }
+
+ function rotate($rotation)
+ {
+ $this->image->rotateImage(new ImagickPixel(), -$rotation);
+ $this->image->setImageOrientation(Imagick::ORIENTATION_TOPLEFT);
+ return true;
+ }
+
+ function resize($width, $height)
+ {
+ $this->image->setInterlaceScheme(Imagick::INTERLACE_LINE);
+ return $this->image->resizeImage($width, $height, Imagick::FILTER_LANCZOS, 0.9);
+ }
+
+ function write($destination_filepath)
+ {
+ return $this->image->writeImage($destination_filepath);
+ }
+}
+
+// +-----------------------------------------------------------------------+
+// | Class for ImageMagick external installation |
+// +-----------------------------------------------------------------------+
+
+class image_ext_imagick implements imageInterface
+{
+ var $imagickdir = '';
+ var $source_filepath = '';
+ var $width = '';
+ var $height = '';
+ var $commands = array();
+
+ function __construct($source_filepath, $imagickdir='')
+ {
+ $this->source_filepath = $source_filepath;
+ $this->imagickdir = $imagickdir;
+
+ $command = $imagickdir.'identify -format "%wx%h" "'.realpath($source_filepath).'"';
+ @exec($command, $returnarray, $returnvalue);
+ if($returnvalue or !preg_match('/^(\d+)x(\d+)$/', $returnarray[0], $match))
+ {
+ die("[External ImageMagick] Corrupt image");
+ }
+
+ $this->width = $match[1];
+ $this->height = $match[2];
+ }
+
+ function add_command($command, $params=null)
+ {
+ $this->commands[$command] = $params;
+ }
+
+ function get_width()
+ {
+ return $this->width;
+ }
+
+ function get_height()
+ {
+ return $this->height;
+ }
+
+ function crop($width, $height, $x, $y)
+ {
+ $this->add_command('crop', $width.'x'.$height.'+'.$x.'+'.$y);
+ return true;
+ }
+
+ function strip()
+ {
+ $this->add_command('strip');
+ return true;
+ }
+
+ function rotate($rotation)
+ {
+ $this->add_command('rotate', -$rotation);
+ $this->add_command('orient', 'top-left');
+ return true;
+ }
+
+ function set_compression_quality($quality)
+ {
+ $this->add_command('quality', $quality);
+ return true;
+ }
+
+ function resize($width, $height)
+ {
+ $this->add_command('interlace', 'line');
+ $this->add_command('filter', 'Lanczos');
+ $this->add_command('resize', $width.'x'.$height.'!');
+ return true;
+ }
+
+ function write($destination_filepath)
+ {
+ $exec = $this->imagickdir.'convert';
+ $exec .= ' "'.realpath($this->source_filepath).'"';
+
+ foreach ($this->commands as $command => $params)
+ {
+ $exec .= ' -'.$command;
+ if (!empty($params))
+ {
+ $exec .= ' '.$params;
+ }
+ }
+
+ $dest = pathinfo($destination_filepath);
+ $exec .= ' "'.realpath($dest['dirname']).'/'.$dest['basename'].'"';
+ @exec($exec, $returnarray, $returnvalue);
+ return !$returnvalue;
+ }
+}
+
+// +-----------------------------------------------------------------------+
+// | Class for GD library |
+// +-----------------------------------------------------------------------+
+
+class image_gd implements imageInterface
+{
+ var $image;
+ var $quality = 95;
+
+ function __construct($source_filepath)
+ {
+ $gd_info = gd_info();
+ $extension = strtolower(get_extension($source_filepath));
+
+ if (in_array($extension, array('jpg', 'jpeg')))
+ {
+ $this->image = imagecreatefromjpeg($source_filepath);
+ }
+ else if ($extension == 'png')
+ {
+ $this->image = imagecreatefrompng($source_filepath);
+ }
+ elseif ($extension == 'gif' and $gd_info['GIF Read Support'] and $gd_info['GIF Create Support'])
+ {
+ $this->image = imagecreatefromgif($source_filepath);
+ }
+ else
+ {
+ die('[Image GD] unsupported file extension');
+ }
+ }
+
+ function get_width()
+ {
+ return imagesx($this->image);
+ }
+
+ function get_height()
+ {
+ return imagesy($this->image);
+ }
+
+ function crop($width, $height, $x, $y)
+ {
+ $dest = imagecreatetruecolor($width, $height);
+
+ imagealphablending($dest, false);
+ imagesavealpha($dest, true);
+ if (function_exists('imageantialias'))
+ {
+ imageantialias($dest, true);
+ }
+
+ $result = imagecopymerge($dest, $this->image, 0, 0, $x, $y, $width, $height, 100);
+
+ if ($result !== false)
+ {
+ imagedestroy($this->image);
+ $this->image = $dest;
+ }
+ else
+ {
+ imagedestroy($dest);
+ }
+ return $result;
+ }
+
+ function strip()
+ {
+ return true;
+ }
+
+ function rotate($rotation)
+ {
+ $dest = imagerotate($this->image, $rotation, 0);
+ imagedestroy($this->image);
+ $this->image = $dest;
+ return true;
+ }
+
+ function set_compression_quality($quality)
+ {
+ $this->quality = $quality;
+ return true;
+ }
+
+ function resize($width, $height)
+ {
+ $dest = imagecreatetruecolor($width, $height);
+
+ imagealphablending($dest, false);
+ imagesavealpha($dest, true);
+ if (function_exists('imageantialias'))
+ {
+ imageantialias($dest, true);
+ }
+
+ $result = imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $width, $height, $this->get_width(), $this->get_height());
+
+ if ($result !== false)
+ {
+ imagedestroy($this->image);
+ $this->image = $dest;
+ }
+ else
+ {
+ imagedestroy($dest);
+ }
+ return $result;
+ }
+
+ function write($destination_filepath)
+ {
+ $extension = strtolower(get_extension($destination_filepath));
+
+ if ($extension == 'png')
+ {
+ imagepng($this->image, $destination_filepath);
+ }
+ elseif ($extension == 'gif')
+ {
+ imagegif($this->image, $destination_filepath);
+ }
+ else
+ {
+ imagejpeg($this->image, $destination_filepath, $this->quality);
+ }
+ }
+
+ function destroy()
+ {
+ imagedestroy($this->image);
+ }
+}
+
?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 02:27:48 +0000