diff --git a/class/class.thumbnail.php b/class/class.thumbnail.php index 3558b68..eaa3d1e 100644 --- a/class/class.thumbnail.php +++ b/class/class.thumbnail.php @@ -1,1477 +1,1766 @@ - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * 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.. - * - * The latest version of Image_Toolbox can be obtained from: - * http://sourceforge.net/projects/image-toolbox - * http://www.phpclasses.org/image_toolbox - * - * @author Martin Theimer - * @copyright Copyright (C) 2003 Martin Theimer - * @version 1.1.0 - * @package Image_Toolbox - * @link http://sourceforge.net/projects/image-toolbox - */ - -// $Id: Image_Toolbox.class.php,v 1.9 2003/12/05 19:34:01 pappkamerad Exp $ - -if (!defined('IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY')) { - define('IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY', 3); -} -if (!defined('IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY')) { - define('IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY', 90); -} -if (!defined('IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS')) { - define('IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS', 256); -} -if (!defined('IMAGE_TOOLBOX_BIAS_HORIZONTAL')) { - define('IMAGE_TOOLBOX_BIAS_HORIZONTAL', 1); -} -if (!defined('IMAGE_TOOLBOX_BIAS_VERTICAL')) { - define('IMAGE_TOOLBOX_BIAS_VERTICAL', 0); -} -if (!defined('IMAGE_TOOLBOX_BLEND_COPY')) { - define('IMAGE_TOOLBOX_BLEND_COPY', 1); -} -if (!defined('IMAGE_TOOLBOX_BLEND_MULTIPLY')) { - define('IMAGE_TOOLBOX_BLEND_MULTIPLY', 2); -} -if (!defined('IMAGE_TOOLBOX_BLEND_SCREEN')) { - define('IMAGE_TOOLBOX_BLEND_SCREEN', 3); -} -if (!defined('IMAGE_TOOLBOX_BLEND_DIFFERENCE')) { - define('IMAGE_TOOLBOX_BLEND_DIFFERENCE', 4); -} -if (!defined('IMAGE_TOOLBOX_BLEND_NEGATION')) { - define('IMAGE_TOOLBOX_BLEND_NEGATION', 5); -} -if (!defined('IMAGE_TOOLBOX_BLEND_EXCLUSION')) { - define('IMAGE_TOOLBOX_BLEND_EXCLUSION', 6); -} -if (!defined('IMAGE_TOOLBOX_BLEND_OVERLAY')) { - define('IMAGE_TOOLBOX_BLEND_OVERLAY', 7); -} - -/** - * PHP image manipulation class - * - * This class provides an easy to use library to the PHP GD-based imagefunctions - * - * @author Martin Theimer - * @copyright 2003, Martin Theimer - * @package Image_Toolbox - * @link http://sourceforge.net/projects/image-toolbox - * @version 1.1.0 - */ -class Image_Toolbox { - /** - * The prefix for every error message + * Image_Toolbox.class.php -- PHP image manipulation class * - * @access private - * @var string - */ - var $_error_prefix = 'Image: '; - - /** - * Defines imagetypes and how they are supported by the server + * Copyright (C) 2003 Martin Theimer * - * @access private - * @var array */ - var $_types = array ( - 1 => array ( - 'ext' => 'gif', - 'mime' => 'image/gif', - 'supported' => 0 - ), - 2 => array ( - 'ext' => 'jpg', - 'mime' => 'image/jpeg', - 'supported' => 0 - ), - 3 => array ( - 'ext' => 'png', - 'mime' => 'image/png', - 'supported' => 0 - ) - ); - /** - * Which PHP image resize function to be used - * imagecopyresampled only supported with GD >= 2.0 - * - * @access private - * @var string - */ - var $_resize_function = 'imagecopyresampled'; - /** - * Stores all image resource data - * - * @access private - * @var array - */ - var $_img = array ( - 'main' => array ( - 'resource' => 0, - 'width' => 0, - 'height' => 0, - 'bias' => 0, - 'aspectratio' => 0, - 'type' => 0, - 'output_type' => 0, - 'indexedcolors' => 0, - 'color' => -1 - ) - ); + if (! defined('IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY')) + define('IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY', 3); - /** - * Which PHP image create function to be used - * imagecreatetruecolor only supported with GD >= 2.0 - * - * @access private - * @var string - */ - var $_imagecreatefunction = ''; + if (! defined('IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY')) + define('IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY', 90); + + if (! defined('IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS')) + define('IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS', 256); + + if (! defined('IMAGE_TOOLBOX_BIAS_HORIZONTAL')) + define('IMAGE_TOOLBOX_BIAS_HORIZONTAL', 1); + + if (! defined('IMAGE_TOOLBOX_BIAS_VERTICAL')) + define('IMAGE_TOOLBOX_BIAS_VERTICAL', 0); + + if (! defined('IMAGE_TOOLBOX_BLEND_COPY')) + define('IMAGE_TOOLBOX_BLEND_COPY', 1); + + if (! defined('IMAGE_TOOLBOX_BLEND_MULTIPLY')) + define('IMAGE_TOOLBOX_BLEND_MULTIPLY', 2); + + if (! defined('IMAGE_TOOLBOX_BLEND_SCREEN')) + define('IMAGE_TOOLBOX_BLEND_SCREEN', 3); + + if (! defined('IMAGE_TOOLBOX_BLEND_DIFFERENCE')) + define('IMAGE_TOOLBOX_BLEND_DIFFERENCE', 4); + + if (! defined('IMAGE_TOOLBOX_BLEND_NEGATION')) + define('IMAGE_TOOLBOX_BLEND_NEGATION', 5); + + if (! defined('IMAGE_TOOLBOX_BLEND_EXCLUSION')) + define('IMAGE_TOOLBOX_BLEND_EXCLUSION', 6); + + if (! defined('IMAGE_TOOLBOX_BLEND_OVERLAY')) + define('IMAGE_TOOLBOX_BLEND_OVERLAY', 7); /** - * The class constructor. + * PHP image manipulation class * - * Determines the image features of the server and sets the according values.
- * Additionally you can specify a image to be created/loaded. like {@link addImage() addImage}. - * - * If no parameter is given, no image resource will be generated
- * Or:
- * string $file imagefile to load
- * Or:
- * integer $width imagewidth of new image to be created
- * integer $height imageheight of new image to be created
- * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
+ * This class provides an easy to use library to the PHP GD-based imagefunctions */ - function __construct() + class Image_Toolbox { - $args = func_get_args(); - $argc = func_num_args(); - - //get GD information. see what types we can handle - $gd_info = function_exists('gd_info') ? gd_info() : $this->_gd_info(); - preg_match('/\A[\D]*([\d+\.]*)[\D]*\Z/', $gd_info['GD Version'], $matches); - list($this->_gd_version_string, $this->_gd_version_number) = $matches; - $this->_gd_version = substr($this->_gd_version_number, 0, strpos($this->_gd_version_number, '.')); - if ($this->_gd_version >= 2) { - $this->_imagecreatefunction = 'imagecreatetruecolor'; - $this->_resize_function = 'imagecopyresampled'; - } else { - $this->_imagecreatefunction = 'imagecreate'; - $this->_resize_function = 'imagecopyresized'; - } + /** + * The prefix for every error message + * + * @access private + * @var string + */ + public $_error_prefix = 'Image: '; + + + /** + * Defines imagetypes and how they are supported by the server + * + * @access private + * @var array + */ + public $_types = array ( + 1 => array ( + 'ext' => 'gif', + 'mime' => 'image/gif', + 'supported' => 0 + ), + 2 => array ( + 'ext' => 'jpg', + 'mime' => 'image/jpeg', + 'supported' => 0 + ), + 3 => array ( + 'ext' => 'png', + 'mime' => 'image/png', + 'supported' => 0 + ) + ); - $this->_gd_ttf = $gd_info['FreeType Support']; - $this->_gd_ps = isset($gd_info['T1Lib Support']) ? $gd_info['T1Lib Support'] : false; - if ($gd_info['GIF Read Support']) { - $this->_types[1]['supported'] = 1; - if ($gd_info['GIF Create Support']) { - $this->_types[1]['supported'] = 2; + /** + * Which PHP image resize function to be used + * imagecopyresampled only supported with GD >= 2.0 + * + * @access private + * @var string + */ + public $_resize_function = 'imagecopyresampled'; + + + /** + * Stores all image resource data + * + * @access private + * @var array + */ + public $_img = array ( + 'main' => array ( + 'resource' => 0, + 'width' => 0, + 'height' => 0, + 'bias' => 0, + 'aspectratio' => 0, + 'type' => 0, + 'output_type' => 0, + 'indexedcolors' => 0, + 'color' => -1 + ) + ); + + + /** + * Which PHP image create function to be used + * imagecreatetruecolor only supported with GD >= 2.0 + * + * @access private + * @var string + */ + public $_imagecreatefunction = ''; + + + /** + * The class constructor. + * + * Determines the image features of the server and sets the according values.
+ * Additionally you can specify a image to be created/loaded. like {@link addImage() addImage}. + * + * If no parameter is given, no image resource will be generated
+ * Or:
+ * string $file imagefile to load
+ * Or:
+ * integer $width imagewidth of new image to be created
+ * integer $height imageheight of new image to be created
+ * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
+ */ + function __construct() + { + $args = func_get_args(); + $argc = func_num_args(); + + //get GD information. see what types we can handle + $gd_info = function_exists('gd_info') + ? gd_info() + : $this->_gd_info(); + + preg_match('/\A[\D]*([\d+\.]*)[\D]*\Z/', $gd_info['GD Version'], $matches); + + list($this->_gd_version_string, $this->_gd_version_number) = $matches; + + $this->_gd_version = substr($this->_gd_version_number, 0, strpos($this->_gd_version_number, '.')); + + if ($this->_gd_version >= 2) + { + $this->_imagecreatefunction = 'imagecreatetruecolor'; + $this->_resize_function = 'imagecopyresampled'; + } + else + { + $this->_imagecreatefunction = 'imagecreate'; + $this->_resize_function = 'imagecopyresized'; + } + + $this->_gd_ttf = $gd_info['FreeType Support']; + $this->_gd_ps = isset($gd_info['T1Lib Support']) ? $gd_info['T1Lib Support'] : false; + + if ($gd_info['GIF Read Support']) + { + $this->_types[1]['supported'] = 1; + + if ($gd_info['GIF Create Support']) + $this->_types[1]['supported'] = 2; + } + + if ((isset($gd_info['JPG Support']) && $gd_info['JPG Support']) || (isset($gd_info['JPEG Support']) && $gd_info['JPEG Support'])) + $this->_types[2]['supported'] = 2; + + if ($gd_info['PNG Support']) + $this->_types[3]['supported'] = 2; + + //load or create main image + if ($argc == 0) + { + return true; + } + else + { + if ($this->_addImage($argc, $args)) + { + foreach ($this->_img['operator'] as $key => $value) + $this->_img['main'][$key] = $value; + + $this->_img['main']['output_type'] = $this->_img['main']['type']; + + unset($this->_img['operator']); + + return true; + } + else + { + trigger_error($this->_error_prefix . 'No appropriate constructor found.', E_USER_ERROR); + return null; + } } } - if ((isset($gd_info['JPG Support']) && $gd_info['JPG Support']) || (isset($gd_info['JPEG Support']) && $gd_info['JPEG Support'])) { - $this->_types[2]['supported'] = 2; - } - if ($gd_info['PNG Support']) { - $this->_types[3]['supported'] = 2; + + + /** + * Returns an assocative array with information about the image features of this server + * + * Array values: + *
    + *
  • 'gd_version' -> what GD version is installed on this server (e.g. 2.0)
    • + *
  • 'gif' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported
    • + *
  • 'jpg' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported
    • + *
  • 'png' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported
    • + *
  • 'ttf' -> TTF text creation. true = supported, false = not supported + *
+ * + * @return array + */ + function getServerFeatures() + { + $features = array(); + $features['gd_version'] = $this->_gd_version_number; + $features['gif'] = $this->_types[1]['supported']; + $features['jpg'] = $this->_types[2]['supported']; + $features['png'] = $this->_types[3]['supported']; + $features['ttf'] = $this->_gd_ttf; + + return $features; } - //load or create main image - if ($argc == 0) { - return true; - } else { - if ($this->_addImage($argc, $args)) { - foreach ($this->_img['operator'] as $key => $value) { + + /** + * Flush all image resources and init a new one + * + * Parameter:
+ * string $file imagefile to load
+ * Or:
+ * integer $width imagewidth of new image to be created
+ * integer $height imageheight of new image to be created
+ * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
+ */ + function newImage() + { + $args = func_get_args(); + $argc = func_num_args(); + + if ($this->_addImage($argc, $args)) + { + foreach ($this->_img['operator'] as $key => $value) $this->_img['main'][$key] = $value; - } + $this->_img['main']['output_type'] = $this->_img['main']['type']; + unset($this->_img['operator']); + return true; - } else { + } + else + { trigger_error($this->_error_prefix . 'No appropriate constructor found.', E_USER_ERROR); + return null; } } - } - /** - * Returns an assocative array with information about the image features of this server - * - * Array values: - *
    - *
  • 'gd_version' -> what GD version is installed on this server (e.g. 2.0)
    • - *
  • 'gif' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported
    • - *
  • 'jpg' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported
    • - *
  • 'png' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported
    • - *
  • 'ttf' -> TTF text creation. true = supported, false = not supported - *
- * - * @return array - */ - function getServerFeatures() { - $features = array(); - $features['gd_version'] = $this->_gd_version_number; - $features['gif'] = $this->_types[1]['supported']; - $features['jpg'] = $this->_types[2]['supported']; - $features['png'] = $this->_types[3]['supported']; - $features['ttf'] = $this->_gd_ttf; - return $features; - } - /** - * Flush all image resources and init a new one - * - * Parameter:
- * string $file imagefile to load
- * Or:
- * integer $width imagewidth of new image to be created
- * integer $height imageheight of new image to be created
- * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
- */ - function newImage() { - $args = func_get_args(); - $argc = func_num_args(); + /** + * Reimplements the original PHP {@link gd_info()} function for older PHP versions + * + * @access private + * @return array associative array with info about the GD library of the server + */ + function _gd_info() + { + $array = array( + 'GD Version' => '', + 'FreeType Support' => false, + 'FreeType Linkage' => '', + 'T1Lib Support' => false, + 'GIF Read Support' => false, + 'GIF Create Support' => false, + 'JPG Support' => false, + 'PNG Support' => false, + 'WBMP Support' => false, + 'XBM Support' => false + ); - if ($this->_addImage($argc, $args)) { - foreach ($this->_img['operator'] as $key => $value) { - $this->_img['main'][$key] = $value; + $gif_support = 0; + + ob_start(); + + eval('phpinfo();'); + + $info = ob_get_contents(); + + ob_end_clean(); + + foreach(explode('\n', $info) as $line) + { + if (strpos($line, 'GD Version') !== false) + $array['GD Version'] = trim(str_replace('GD Version', '', strip_tags($line))); + + if (strpos($line, 'FreeType Support') !== false) + $array['FreeType Support'] = trim(str_replace('FreeType Support', '', strip_tags($line))); + + if (strpos($line, 'FreeType Linkage') !== false) + $array['FreeType Linkage'] = trim(str_replace('FreeType Linkage', '', strip_tags($line))); + + if (strpos($line, 'T1Lib Support') !== false) + $array['T1Lib Support'] = trim(str_replace('T1Lib Support', '', strip_tags($line))); + + if (strpos($line, 'GIF Read Support') !== false) + $array['GIF Read Support'] = trim(str_replace('GIF Read Support', '', strip_tags($line))); + + if (strpos($line, 'GIF Create Support') !== false) + $array['GIF Create Support'] = trim(str_replace('GIF Create Support', '', strip_tags($line))); + + if (strpos($line, 'GIF Support') !== false) + $gif_support = trim(str_replace('GIF Support', '', strip_tags($line))); + + if (strpos($line, 'JPG Support') !== false) + $array['JPG Support'] = trim(str_replace('JPG Support', '', strip_tags($line))); + + if (strpos($line, 'PNG Support') !== false) + $array['PNG Support'] = trim(str_replace('PNG Support', '', strip_tags($line))); + + if (strpos($line, 'WBMP Support') !== false) + $array['WBMP Support'] = trim(str_replace('WBMP Support', '', strip_tags($line))); + + if (strpos($line, 'XBM Support') !== false) + $array['XBM Support'] = trim(str_replace('XBM Support', '', strip_tags($line))); } - $this->_img['main']['output_type'] = $this->_img['main']['type']; - unset($this->_img['operator']); - return true; - } else { - trigger_error($this->_error_prefix . 'No appropriate constructor found.', E_USER_ERROR); - return null; - } - } - /** - * Reimplements the original PHP {@link gd_info()} function for older PHP versions - * - * @access private - * @return array associative array with info about the GD library of the server - */ - function _gd_info() { - $array = array( - "GD Version" => "", - "FreeType Support" => false, - "FreeType Linkage" => "", - "T1Lib Support" => false, - "GIF Read Support" => false, - "GIF Create Support" => false, - "JPG Support" => false, - "PNG Support" => false, - "WBMP Support" => false, - "XBM Support" => false - ); + if ($gif_support === 'enabled') + { + $array['GIF Read Support'] = true; + $array['GIF Create Support'] = true; + } - $gif_support = 0; - ob_start(); - eval("phpinfo();"); - $info = ob_get_contents(); - ob_end_clean(); - - foreach(explode("\n", $info) as $line) { - if(strpos($line, "GD Version") !== false) - $array["GD Version"] = trim(str_replace("GD Version", "", strip_tags($line))); - if(strpos($line, "FreeType Support") !== false) - $array["FreeType Support"] = trim(str_replace("FreeType Support", "", strip_tags($line))); - if(strpos($line, "FreeType Linkage") !== false) - $array["FreeType Linkage"] = trim(str_replace("FreeType Linkage", "", strip_tags($line))); - if(strpos($line, "T1Lib Support") !== false) - $array["T1Lib Support"] = trim(str_replace("T1Lib Support", "", strip_tags($line))); - if(strpos($line, "GIF Read Support") !== false) - $array["GIF Read Support"] = trim(str_replace("GIF Read Support", "", strip_tags($line))); - if(strpos($line, "GIF Create Support") !== false) - $array["GIF Create Support"] = trim(str_replace("GIF Create Support", "", strip_tags($line))); - if(strpos($line, "GIF Support") !== false) - $gif_support = trim(str_replace("GIF Support", "", strip_tags($line))); - if(strpos($line, "JPG Support") !== false) - $array["JPG Support"] = trim(str_replace("JPG Support", "", strip_tags($line))); - if(strpos($line, "PNG Support") !== false) - $array["PNG Support"] = trim(str_replace("PNG Support", "", strip_tags($line))); - if(strpos($line, "WBMP Support") !== false) - $array["WBMP Support"] = trim(str_replace("WBMP Support", "", strip_tags($line))); - if(strpos($line, "XBM Support") !== false) - $array["XBM Support"] = trim(str_replace("XBM Support", "", strip_tags($line))); - } + if ($array['FreeType Support'] === 'enabled') + { + $array['FreeType Support'] = true; + } - if($gif_support === "enabled") { - $array["GIF Read Support"] = true; - $array["GIF Create Support"] = true; - } + if ($array['T1Lib Support'] === 'enabled') + { + $array['T1Lib Support'] = true; + } - if($array["FreeType Support"] === "enabled") { - $array["FreeType Support"] = true; - } + if ($array['GIF Read Support'] === 'enabled') + { + $array['GIF Read Support'] = true; + } - if($array["T1Lib Support"] === "enabled") { - $array["T1Lib Support"] = true; - } + if ($array['GIF Create Support'] === 'enabled') + { + $array['GIF Create Support'] = true; + } - if($array["GIF Read Support"] === "enabled") { - $array["GIF Read Support"] = true; - } + if ($array['JPG Support'] === 'enabled') + { + $array['JPG Support'] = true; + } - if($array["GIF Create Support"] === "enabled") { - $array["GIF Create Support"] = true; - } + if ($array['PNG Support'] === 'enabled') + { + $array['PNG Support'] = true; + } - if($array["JPG Support"] === "enabled") { - $array["JPG Support"] = true; - } + if ($array['WBMP Support'] === 'enabled') + { + $array['WBMP Support'] = true; + } - if($array["PNG Support"] === "enabled") { - $array["PNG Support"] = true; + if ($array['XBM Support'] === 'enabled') + { + $array['XBM Support'] = true; + } + + return $array; } - if($array["WBMP Support"] === "enabled") { - $array["WBMP Support"] = true; + + /** + * Convert a color defined in hexvalues to the PHP color format + * + * @access private + * @param string $hex color value in hexformat (e.g. '#FF0000') + * @return integer color value in PHP format + */ + function _hexToPHPColor($hex) + { + $length = strlen($hex); + $dr = hexdec(substr($hex, $length - 6, 2)); + $dg = hexdec(substr($hex, $length - 4, 2)); + $db = hexdec(substr($hex, $length - 2, 2)); + $color = ($dr << 16) + ($dg << 8) + $db; + + return $color; } - if($array["XBM Support"] === "enabled") { - $array["XBM Support"] = true; + + /** + * Convert a color defined in hexvalues to corresponding dezimal values + * + * @access private + * @param string $hex color value in hexformat (e.g. '#FF0000') + * @return array associative array with color values in dezimal format (fields: 'red', 'green', 'blue') + */ + function _hexToDecColor($hex) + { + $length = strlen($hex); + $color['red'] = hexdec(substr($hex, $length - 6, 2)); + $color['green'] = hexdec(substr($hex, $length - 4, 2)); + $color['blue'] = hexdec(substr($hex, $length - 2, 2)); + + return $color; } - return $array; - } - /** - * Convert a color defined in hexvalues to the PHP color format - * - * @access private - * @param string $hex color value in hexformat (e.g. '#FF0000') - * @return integer color value in PHP format - */ - function _hexToPHPColor($hex) { - $length = strlen($hex); - $dr = hexdec(substr($hex, $length - 6, 2)); - $dg = hexdec(substr($hex, $length - 4, 2)); - $db = hexdec(substr($hex, $length - 2, 2)); - $color = ($dr << 16) + ($dg << 8) + $db; - return $color; - } + /** + * Generate a new image resource based on the given parameters + * + * Parameter: + * string $file imagefile to load
+ * Or:
+ * integer $width imagewidth of new image to be created
+ * integer $height imageheight of new image to be created
+ * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
+ * + * @access private + */ + function _addImage($argc, $args) + { + if (($argc == 2 || $argc == 3) && is_int($args[0]) && is_int($args[1]) && (is_string($args[2]) || ! isset($args[2]))) + { + //neues leeres bild mit width und height (fillcolor optional) + $this->_img['operator']['width'] = $args[0]; + $this->_img['operator']['height'] = $args[1]; - /** - * Convert a color defined in hexvalues to corresponding dezimal values - * - * @access private - * @param string $hex color value in hexformat (e.g. '#FF0000') - * @return array associative array with color values in dezimal format (fields: 'red', 'green', 'blue') - */ - function _hexToDecColor($hex) { - $length = strlen($hex); - $color['red'] = hexdec(substr($hex, $length - 6, 2)); - $color['green'] = hexdec(substr($hex, $length - 4, 2)); - $color['blue'] = hexdec(substr($hex, $length - 2, 2)); - return $color; - } + ($this->_img['operator']['width'] >= $this->_img['operator']['height']) + ? ($this->_img['operator']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) + : ($this->_img['operator']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - /** - * Generate a new image resource based on the given parameters - * - * Parameter: - * string $file imagefile to load
- * Or:
- * integer $width imagewidth of new image to be created
- * integer $height imageheight of new image to be created
- * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
- * - * @access private - */ - function _addImage($argc, $args) { - if (($argc == 2 || $argc == 3) && is_int($args[0]) && is_int($args[1]) && (is_string($args[2]) || !isset($args[2]))) { - //neues leeres bild mit width und height (fillcolor optional) - $this->_img['operator']['width'] = $args[0]; - $this->_img['operator']['height'] = $args[1]; - ($this->_img['operator']['width'] >= $this->_img['operator']['height']) ? ($this->_img['operator']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['operator']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - $this->_img['operator']['aspectratio'] = $this->_img['operator']['width'] / $this->_img['operator']['height']; - $this->_img['operator']['indexedcolors'] = 0; - $functionname = $this->_imagecreatefunction; - $this->_img['operator']['resource'] = $functionname($this->_img['operator']['width'], $this->_img['operator']['height']); - // set default type jpg. - $this->_img['operator']['type'] = 2; - if (isset($args[2]) && is_string($args[2])) { - //neues bild mit farbe fЃllen - $fillcolor = $this->_hexToPHPColor($args[2]); - imagefill($this->_img['operator']['resource'], 0, 0, $fillcolor); - $this->_img['operator']['color'] = $fillcolor; - } else { - $this->_img['operator']['color'] = 0; + $this->_img['operator']['aspectratio'] = $this->_img['operator']['width'] / $this->_img['operator']['height']; + + $this->_img['operator']['indexedcolors'] = 0; + + $functionname = $this->_imagecreatefunction; + + $this->_img['operator']['resource'] = $functionname($this->_img['operator']['width'], $this->_img['operator']['height']); + + // set default type jpg. + $this->_img['operator']['type'] = 2; + + if (isset($args[2]) && is_string($args[2])) + { + //neues bild mit farbe fЃllen + $fillcolor = $this->_hexToPHPColor($args[2]); + + imagefill($this->_img['operator']['resource'], 0, 0, $fillcolor); + + $this->_img['operator']['color'] = $fillcolor; + } + else + { + $this->_img['operator']['color'] = 0; + } + } + elseif ($argc == 1 && is_string($args[0])) + { + //bild aus datei laden. width und height original gr”sse + $this->_img['operator'] = $this->_loadFile($args[0]); + + $this->_img['operator']['indexedcolors'] = imagecolorstotal($this->_img['operator']['resource']); + + $this->_img['operator']['color'] = -1; } - } elseif ($argc == 1 && is_string($args[0])) { - //bild aus datei laden. width und height original gr”sse - $this->_img['operator'] = $this->_loadFile($args[0]); - $this->_img['operator']['indexedcolors'] = imagecolorstotal($this->_img['operator']['resource']); - $this->_img['operator']['color'] = -1; - } else { - return false; + else + { + return false; + } + + return true; } - return true; - } - /** - * Loads a image file - * - * @access private - * @param string $filename imagefile to load - * @return array associative array with the loaded filedata - */ - function _loadFile($filename) { - if (file_exists($filename)) { - $info = getimagesize($filename); - $filedata['width'] = $info[0]; - $filedata['height'] = $info[1]; - ($filedata['width'] >= $filedata['height']) ? ($filedata['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($filedata['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - $filedata['aspectratio'] = $filedata['width'] / $filedata['height']; - $filedata['type'] = $info[2]; - - if ($this->_types[$filedata['type']]['supported'] < 1) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$filedata['type']]['ext'].') not supported for reading.', E_USER_ERROR); + /** + * Loads a image file + * + * @access private + * @param string $filename imagefile to load + * @return array associative array with the loaded filedata + */ + function _loadFile($filename) + { + if (file_exists($filename)) + { + $info = getimagesize($filename); + + $filedata['width'] = $info[0]; + + $filedata['height'] = $info[1]; + + ($filedata['width'] >= $filedata['height']) + ? ($filedata['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) + : ($filedata['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); + + $filedata['aspectratio'] = $filedata['width'] / $filedata['height']; + $filedata['type'] = $info[2]; + + if ($this->_types[$filedata['type']]['supported'] < 1) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$filedata['type']]['ext'].') not supported for reading.', E_USER_ERROR); + return null; + } + + switch ($filedata['type']) + { + case 1: + $dummy = imagecreatefromgif($filename); + $functionname = $this->_imagecreatefunction; + $filedata['resource'] = $functionname($filedata['width'], $filedata['height']); + imagecopy($filedata['resource'], $dummy, 0, 0, 0, 0, $filedata['width'], $filedata['height']); + imagedestroy($dummy); + break; + + case 2: + $filedata['resource'] = imagecreatefromjpeg($filename); + break; + + case 3: + $dummy = imagecreatefrompng($filename); + + if (imagecolorstotal($dummy) != 0) + { + $functionname = $this->_imagecreatefunction; + $filedata['resource'] = $functionname($filedata['width'], $filedata['height']); + imagecopy($filedata['resource'], $dummy, 0, 0, 0, 0, $filedata['width'], $filedata['height']); + } + else + { + $filedata['resource'] = $dummy; + } + unset($dummy); + break; + + default: + trigger_error($this->_error_prefix . 'Imagetype not supported.', E_USER_ERROR); + return null; + } + return $filedata; + } + else + { + trigger_error($this->_error_prefix . 'Imagefile (' . $filename . ') does not exist.', E_USER_ERROR); return null; } - switch ($filedata['type']) { + } + + + /** + * Output a image to the browser + * + * $output_type can be one of the following:
+ *
    + *
  • 'gif' -> gif image (if supported) (8-bit indexed colors)
    • + *
  • 'png' -> png image (if supported) (truecolor)
    • + *
  • 'png8' -> png image (if supported) (8-bit indexed colors)
    • + *
  • 'jpg' -> jpeg image (if supported) (truecolor)
    • + *
+ * (default: same as original) + * + * $dither:
+ * If this is true than dither is used on the conversion from truecolor to 8-bit indexed imageformats (png8, gif)
+ * (default = false) + * + * @param string|integer $output_type type of outputted image + * @param integer $output_quality jpeg quality of outputted image (default: IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY) + * @param bool $dither use dither + * @return bool true on success, otherwise false + */ + function output($output_type = false, $output_quality = false, $dither = false) + { + if ($output_type === false) + $output_type = $this->_img['main']['output_type']; + + switch ($output_type) + { case 1: - $dummy = imagecreatefromgif($filename); - $functionname = $this->_imagecreatefunction; - $filedata['resource'] = $functionname($filedata['width'], $filedata['height']); - imagecopy($filedata['resource'], $dummy, 0, 0, 0, 0, $filedata['width'], $filedata['height']); - imagedestroy($dummy); + case 'gif': + case 'GIF': + if ($this->_types[1]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; + } + + header ('Content-type: ' . $this->_types[$output_type]['mime']); + + if ($this->_gd_version >= 2) + { + if ($this->_img['main']['indexedcolors'] == 0) + { + $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); + imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); + + if ($output_quality === false) + { + $output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS; + } + + imagetruecolortopalette($dummy, $dither, $output_quality); + } + imagegif($dummy); + imagedestroy($dummy); + } + else + { + imagegif($this->_img['main']['resource']); + } break; case 2: - $filedata['resource'] = imagecreatefromjpeg($filename); + case '2': + case 'jpg': + case 'jpeg': + case 'JPG': + case 'JPEG': + if ($this->_types[2]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; + } + + header ('Content-type: ' . $this->_types[$output_type]['mime']); + + if ($output_quality === false) + { + $output_quality = IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY; + } + + imagejpeg($this->_img['main']['resource'], null, $output_quality); break; case 3: - $dummy = imagecreatefrompng($filename); - if (imagecolorstotal($dummy) != 0) { - $functionname = $this->_imagecreatefunction; - $filedata['resource'] = $functionname($filedata['width'], $filedata['height']); - imagecopy($filedata['resource'], $dummy, 0, 0, 0, 0, $filedata['width'], $filedata['height']); - } else { - $filedata['resource'] = $dummy; + case '3': + case 'png': + case 'PNG': + case 'png24': + case 'PNG24': + if ($this->_types[3]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; } - unset($dummy); - break; - default: - trigger_error($this->_error_prefix . 'Imagetype not supported.', E_USER_ERROR); - return null; - } - return $filedata; - } else { - trigger_error($this->_error_prefix . 'Imagefile (' . $filename . ') does not exist.', E_USER_ERROR); - return null; - } - } + header ('Content-type: ' . $this->_types[$output_type]['mime']); - /** - * Output a image to the browser - * - * $output_type can be one of the following:
- *
    - *
  • 'gif' -> gif image (if supported) (8-bit indexed colors)
    • - *
  • 'png' -> png image (if supported) (truecolor)
    • - *
  • 'png8' -> png image (if supported) (8-bit indexed colors)
    • - *
  • 'jpg' -> jpeg image (if supported) (truecolor)
    • - *
- * (default: same as original) - * - * $dither:
- * If this is true than dither is used on the conversion from truecolor to 8-bit indexed imageformats (png8, gif)
- * (default = false) - * - * @param string|integer $output_type type of outputted image - * @param integer $output_quality jpeg quality of outputted image (default: IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY) - * @param bool $dither use dither - * @return bool true on success, otherwise false - */ - function output($output_type = false, $output_quality = false, $dither = false) { - if ($output_type === false) { - $output_type = $this->_img['main']['output_type']; - } - switch ($output_type) { - case 1: - case 'gif': - case 'GIF': - if ($this->_types[1]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - header ('Content-type: ' . $this->_types[$output_type]['mime']); - if ($this->_gd_version >= 2) { - if ($this->_img['main']['indexedcolors'] == 0) { - $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); - imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS; + if (version_compare(PHP_VERSION, '5.1.2', '>=')) + { + if ($output_quality === false) + { + $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; } - imagetruecolortopalette($dummy, $dither, $output_quality); + + imagepng($this->_img['main']['resource'], null, $output_quality); } - imagegif($dummy); - imagedestroy($dummy); - } - else { - imagegif($this->_img['main']['resource']); - } - break; - - case 2: - case '2': - case 'jpg': - case 'jpeg': - case 'JPG': - case 'JPEG': - if ($this->_types[2]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - header ('Content-type: ' . $this->_types[$output_type]['mime']); - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY; - } - imagejpeg($this->_img['main']['resource'], null, $output_quality); - break; - - case 3: - case '3': - case 'png': - case 'PNG': - case 'png24': - case 'PNG24': - if ($this->_types[3]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - header ('Content-type: ' . $this->_types[$output_type]['mime']); - if (version_compare(PHP_VERSION, '5.1.2', '>=')) { - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; + else + { + imagepng($this->_img['main']['resource']); } - imagepng($this->_img['main']['resource'], null, $output_quality); - } - else { - imagepng($this->_img['main']['resource']); - } - break; - - case 4: - case '4': - case 'png8': - case 'PNG8': - if ($this->_types[3]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - header ('Content-type: ' . $this->_types[$output_type]['mime']); - if ($this->_gd_version >= 2) { - if ($this->_img['main']['indexedcolors'] == 0) { - $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); - imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); - imagetruecolortopalette($dummy, $dither, 255); + break; + + case 4: + case '4': + case 'png8': + case 'PNG8': + if ($this->_types[3]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; } - if (version_compare(PHP_VERSION, '5.1.2', '>=')) { - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; + + header ('Content-type: ' . $this->_types[$output_type]['mime']); + + if ($this->_gd_version >= 2) + { + if ($this->_img['main']['indexedcolors'] == 0) + { + $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); + + imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); + + imagetruecolortopalette($dummy, $dither, 255); + } + + if (version_compare(PHP_VERSION, '5.1.2', '>=')) + { + if ($output_quality === false) + { + $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; + } + + imagepng($dummy, null, $output_quality); } - imagepng($dummy, null, $output_quality); + else + { + imagepng($dummy); + } + + imagedestroy($dummy); } - else { - imagepng($dummy); + else + { + imagepng($this->_img['main']['resource']); } - imagedestroy($dummy); - } - else { - imagepng($this->_img['main']['resource']); - } - break; + break; - default: - trigger_error($this->_error_prefix . 'Output-Imagetype not supported.', E_USER_ERROR); - return null; + default: + trigger_error($this->_error_prefix . 'Output-Imagetype not supported.', E_USER_ERROR); + return null; + } + return true; } - return true; - } - /** - * Save a image to disk - * - * $output_type can be one of the following:
- *
    - *
  • 'gif' -> gif image (if supported) (8-bit indexed colors)
    • - *
  • 'png' -> png image (if supported) (truecolor)
    • - *
  • 'png8' -> png image (if supported) (8-bit indexed colors)
    • - *
  • 'jpg' -> jpeg image (if supported) (truecolor)
    • - *
- * (default: same as original) - * - * $dither:
- * If this is true than dither is used on the conversion from truecolor to 8-bit indexed imageformats (png8, gif)
- * (default = false) - * - * @param string $filename filename of saved image - * @param string|integer $output_type type of saved image - * @param integer $output_quality jpeg quality of saved image (default: IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY) - * @param bool $dither use dither - * @return bool true on success, otherwise false - */ - function save($filename, $output_type = false, $output_quality = false, $dither = false) { - if ($output_type === false) { - $output_type = $this->_img['main']['output_type']; - } - switch ($output_type) { - case 1: - case 'gif': - case 'GIF': - if ($this->_types[1]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - if ($this->_gd_version >= 2) { - if ($this->_img['main']['indexedcolors'] == 0) { - $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); - imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS; + + /** + * Save a image to disk + * + * $output_type can be one of the following:
+ *
    + *
  • 'gif' -> gif image (if supported) (8-bit indexed colors)
    • + *
  • 'png' -> png image (if supported) (truecolor)
    • + *
  • 'png8' -> png image (if supported) (8-bit indexed colors)
    • + *
  • 'jpg' -> jpeg image (if supported) (truecolor)
    • + *
+ * (default: same as original) + * + * $dither:
+ * If this is true than dither is used on the conversion from truecolor to 8-bit indexed imageformats (png8, gif)
+ * (default = false) + * + * @param string $filename filename of saved image + * @param string|integer $output_type type of saved image + * @param integer $output_quality jpeg quality of saved image (default: IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY) + * @param bool $dither use dither + * @return bool true on success, otherwise false + */ + function save($filename, $output_type = false, $output_quality = false, $dither = false) + { + if ($output_type === false) + $output_type = $this->_img['main']['output_type']; + + switch ($output_type) + { + case 1: + case 'gif': + case 'GIF': + if ($this->_types[1]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; + } + + if ($this->_gd_version >= 2) + { + if ($this->_img['main']['indexedcolors'] == 0) + { + $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); + imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); + + if ($output_quality === false) + $output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS; + + imagetruecolortopalette($dummy, $dither, $output_quality); } - imagetruecolortopalette($dummy, $dither, $output_quality); + + imagegif($dummy, $filename); + imagedestroy($dummy); } - imagegif($dummy, $filename); - imagedestroy($dummy); - } - else { - imagegif($this->_img['main']['resource']); - } - break; - - case 2: - case '2': - case 'jpg': - case 'jpeg': - case 'JPG': - case 'JPEG': - if ($this->_types[2]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY; - } - imagejpeg($this->_img['main']['resource'], $filename, $output_quality); - break; - - case 3: - case '3': - case 'png': - case 'PNG': - case 'png24': - case 'PNG24': - if ($this->_types[3]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - if (version_compare(PHP_VERSION, '5.1.2', '>=')) { - if ($output_quality === false) { - $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; + else + { + imagegif($this->_img['main']['resource']); } - imagepng($this->_img['main']['resource'], $filename, $output_quality); - } - else { - imagepng($this->_img['main']['resource'], $filename); - } - break; - - case 4: - case '4': - case 'png8': - case 'PNG8': - if ($this->_types[3]['supported'] < 2) { - trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); - return null; - } - if ($this->_gd_version >= 2) { - if ($this->_img['main']['indexedcolors'] == 0) { - $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); - imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); - imagetruecolortopalette($dummy, $dither, 255); + break; + + case 2: + case '2': + case 'jpg': + case 'jpeg': + case 'JPG': + case 'JPEG': + if ($this->_types[2]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; } - if (version_compare(PHP_VERSION, '5.1.2', '>=')) { - if ($output_quality === false) { + + if ($output_quality === false) + $output_quality = IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY; + + imagejpeg($this->_img['main']['resource'], $filename, $output_quality); + break; + + case 3: + case '3': + case 'png': + case 'PNG': + case 'png24': + case 'PNG24': + if ($this->_types[3]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; + } + + if (version_compare(PHP_VERSION, '5.1.2', '>=')) + { + if ($output_quality === false) $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; + + imagepng($this->_img['main']['resource'], $filename, $output_quality); + } + else + { + imagepng($this->_img['main']['resource'], $filename); + } + break; + + case 4: + case '4': + case 'png8': + case 'PNG8': + if ($this->_types[3]['supported'] < 2) + { + trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR); + return null; + } + + if ($this->_gd_version >= 2) + { + if ($this->_img['main']['indexedcolors'] == 0) + { + $dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']); + imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); + imagetruecolortopalette($dummy, $dither, 255); } - imagepng($dummy, $filename, $output_quality); + + if (version_compare(PHP_VERSION, '5.1.2', '>=')) + { + if ($output_quality === false) + $output_quality = IMAGE_TOOLBOX_DEFAULT_PNG_QUALITY; + + imagepng($dummy, $filename, $output_quality); + } + else + { + imagepng($dummy, $filename); + } + imagedestroy($dummy); } - else { - imagepng($dummy, $filename); + else + { + imagepng($this->_img['main']['resource'], $filename); } - imagedestroy($dummy); - } - else { - imagepng($this->_img['main']['resource'], $filename); - } - break; + break; - default: - trigger_error($this->_error_prefix . 'Output-Imagetype not supported.', E_USER_ERROR); - return null; + default: + trigger_error($this->_error_prefix . 'Output-Imagetype not supported.', E_USER_ERROR); + return null; + } + + return true; } - return true; - } - /** - * Sets the resize method of choice - * - * $method can be one of the following:
- *
    - *
  • 'resize' -> supported by every version of GD (fast but ugly resize of image)
    • - *
  • 'resample' -> only supported by GD version >= 2.0 (slower but antialiased resize of image)
    • - *
- * - * @param string|integer $method resize method - * @return bool true on success, otherwise false - */ - function setResizeMethod($method) { - switch ($method) { - case 1: - case '1': - case 'resize': - $this->_resize_function = 'imagecopyresized'; - break; - case 2: - case '2': - case 'resample': - if (!function_exists('imagecopyresampled')) { - // no error message. just return false. + /** + * Sets the resize method of choice + * + * $method can be one of the following:
+ *
    + *
  • 'resize' -> supported by every version of GD (fast but ugly resize of image)
    • + *
  • 'resample' -> only supported by GD version >= 2.0 (slower but antialiased resize of image)
    • + *
+ * + * @param string|integer $method resize method + * @return bool true on success, otherwise false + */ + function setResizeMethod($method) + { + switch ($method) + { + case 1: + case '1': + case 'resize': + $this->_resize_function = 'imagecopyresized'; + break; + + case 2: + case '2': + case 'resample': + if (! function_exists('imagecopyresampled')) + // no error message. just return false. + return null; + + $this->_resize_function = 'imagecopyresampled'; + break; + + default: + trigger_error($this->_error_prefix . 'Resizemethod not supported.', E_USER_ERROR); return null; - } - $this->_resize_function = 'imagecopyresampled'; - break; + } - default: - trigger_error($this->_error_prefix . 'Resizemethod not supported.', E_USER_ERROR); - return null; + return true; } - return true; - } - /** - * Resize the current image - * - * if $width = 0 the new width will be calculated from the $height value preserving the correct aspectratio.
- * - * if $height = 0 the new height will be calculated from the $width value preserving the correct aspectratio.
- * - * $mode can be one of the following:
- *
    - *
  • 0 -> image will be resized to the new output size, regardless of the original aspectratio. (default)
    • - *
  • 1 -> image will be cropped if necessary to preserve the aspectratio and avoid image distortions.
    • - *
  • 2 -> image will be resized preserving its original aspectratio. differences to the new outputsize will be filled with $bgcolor
    • - *
- * - * if $autorotate is set to true the given $width and $height values may "change place" if the given image bias is different from the original one.
- * if either $width or $height is 0, the new size will be applied to either the new width or the new height based on the bias value of the original image.
- * (default = false) - * - * @param integer $width new width of image - * @param integer $height new height of image - * @param integer $mode resize mode - * @param bool $autorotate use autorotating - * @param string $bgcolor background fillcolor (hexformat, e.g. '#FF0000') - * @return bool true on success, otherwise false - */ - function newOutputSize($width, $height, $mode = 0, $autorotate = false, $bgcolor = '#000000') { - if ($width > 0 && $height > 0 && is_int($width) && is_int($height)) { - //ignore aspectratio - if (!$mode) { - //do not crop to get correct aspectratio - ($width >= $height) ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) { - $this->_img['target']['width'] = $width; - $this->_img['target']['height'] = $height; - } else { - $this->_img['target']['width'] = $height; - $this->_img['target']['height'] = $width; + + /** + * Resize the current image + * + * if $width = 0 the new width will be calculated from the $height value preserving the correct aspectratio.
+ * + * if $height = 0 the new height will be calculated from the $width value preserving the correct aspectratio.
+ * + * $mode can be one of the following:
+ *
    + *
  • 0 -> image will be resized to the new output size, regardless of the original aspectratio. (default)
    • + *
  • 1 -> image will be cropped if necessary to preserve the aspectratio and avoid image distortions.
    • + *
  • 2 -> image will be resized preserving its original aspectratio. differences to the new outputsize will be filled with $bgcolor
    • + *
+ * + * if $autorotate is set to true the given $width and $height values may "change place" if the given image bias is different from the original one.
+ * if either $width or $height is 0, the new size will be applied to either the new width or the new height based on the bias value of the original image.
+ * (default = false) + * + * @param integer $width new width of image + * @param integer $height new height of image + * @param integer $mode resize mode + * @param bool $autorotate use autorotating + * @param string $bgcolor background fillcolor (hexformat, e.g. '#FF0000') + * @return bool true on success, otherwise false + */ + function newOutputSize($width, $height, $mode = 0, $autorotate = false, $bgcolor = '#000000') + { + if ($width > 0 && $height > 0 && is_int($width) && is_int($height)) + { + // ignore aspectratio + if (! $mode) + { + // do not crop to get correct aspectratio + ($width >= $height) + ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) + : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); + + if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) + { + $this->_img['target']['width'] = $width; + $this->_img['target']['height'] = $height; + } + else + { + $this->_img['target']['width'] = $height; + $this->_img['target']['height'] = $width; + } + + $this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height']; + + $cpy_w = $this->_img['main']['width']; + $cpy_h = $this->_img['main']['height']; + $cpy_w_offset = 0; + $cpy_h_offset = 0; } - $this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height']; + // crop to get correct aspectratio + elseif ($mode == 1) + { + //crop to get correct aspectratio + ($width >= $height) + ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) + : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - $cpy_w = $this->_img['main']['width']; - $cpy_h = $this->_img['main']['height']; - $cpy_w_offset = 0; - $cpy_h_offset = 0; - } elseif ($mode == 1) { - //crop to get correct aspectratio - ($width >= $height) ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) { - $this->_img['target']['width'] = $width; - $this->_img['target']['height'] = $height; - } else { - $this->_img['target']['width'] = $height; - $this->_img['target']['height'] = $width; + if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) + { + $this->_img['target']['width'] = $width; + $this->_img['target']['height'] = $height; + } + else + { + $this->_img['target']['width'] = $height; + $this->_img['target']['height'] = $width; + } + + $this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height']; + + if ($this->_img['main']['width'] / $this->_img['target']['width'] >= $this->_img['main']['height'] / $this->_img['target']['height']) + { + $cpy_h = $this->_img['main']['height']; + $cpy_w = (integer) $this->_img['main']['height'] * $this->_img['target']['aspectratio']; + $cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2; + $cpy_h_offset = 0; + } + else + { + $cpy_w = $this->_img['main']['width']; + $cpy_h = (integer) $this->_img['main']['width'] / $this->_img['target']['aspectratio']; + $cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2; + $cpy_w_offset = 0; + } } - $this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height']; + // fill remaining background with a color to keep aspectratio + elseif ($mode == 2) + { + $final_aspectratio = $width / $height; - if ($this->_img['main']['width'] / $this->_img['target']['width'] >= $this->_img['main']['height'] / $this->_img['target']['height']) { + if ($final_aspectratio < $this->_img['main']['aspectratio']) + { + $this->_img['target']['width'] = $width; + $this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio']; + $cpy_w_offset2 = 0; + $cpy_h_offset2 = (integer) (($height - $this->_img['target']['height']) / 2); + } + else + { + $this->_img['target']['height'] = $height; + $this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio']; + $cpy_h_offset2 = 0; + $cpy_w_offset2 = (integer) (($width - $this->_img['target']['width']) / 2); + } + + $this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio']; + $cpy_w = $this->_img['main']['width']; $cpy_h = $this->_img['main']['height']; - $cpy_w = (integer) $this->_img['main']['height'] * $this->_img['target']['aspectratio']; - $cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2; + $cpy_w_offset = 0; $cpy_h_offset = 0; - } else { + } + // fill remaining background with a color to keep aspectratio + elseif ($mode == 3) + { + $final_aspectratio = $width / $height; + + if ($final_aspectratio < $this->_img['main']['aspectratio']) + { + $this->_img['target']['width'] = $width; + $this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio']; + $cpy_w_offset2 = 0; + $cpy_h_offset2 = (integer) (($height - $this->_img['target']['height']) / 2); + } + else + { + $this->_img['target']['height'] = $height; + $this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio']; + $cpy_h_offset2 = 0; + $cpy_w_offset2 = 0; + } + + $this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio']; + $cpy_w = $this->_img['main']['width']; - $cpy_h = (integer) $this->_img['main']['width'] / $this->_img['target']['aspectratio']; - $cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2; + $cpy_h = $this->_img['main']['height']; $cpy_w_offset = 0; + $cpy_h_offset = 0; } - } - elseif ($mode == 2) { - //fill remaining background with a color to keep aspectratio - $final_aspectratio = $width / $height; - if ($final_aspectratio < $this->_img['main']['aspectratio']) { - $this->_img['target']['width'] = $width; - $this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio']; - $cpy_w_offset2 = 0; - $cpy_h_offset2 = (integer) (($height - $this->_img['target']['height']) / 2); - } - else { - $this->_img['target']['height'] = $height; - $this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio']; - $cpy_h_offset2 = 0; - $cpy_w_offset2 = (integer) (($width - $this->_img['target']['width']) / 2); + // smart crop + elseif ($mode == 4) + { + ($width >= $height) + ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) + : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); + + if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) + { + $this->_img['target']['width'] = $width; + $this->_img['target']['height'] = $height; + } + else + { + $this->_img['target']['width'] = $height; + $this->_img['target']['height'] = $width; + } + + $this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height']; + + if ($this->_img['main']['width'] / $this->_img['target']['width'] >= $this->_img['main']['height'] / $this->_img['target']['height']) + { + $cpy_h = $this->_img['main']['height']; + $cpy_w = (integer) $this->_img['main']['height'] * $this->_img['target']['aspectratio']; + $cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2; + $cpy_h_offset = 0; + } + else + { + $cpy_w = $this->_img['main']['width']; + $cpy_h = (integer) $this->_img['main']['width'] / $this->_img['target']['aspectratio']; + $cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2; + $cpy_w_offset = 0; + } + + if ($this->_img['main']['width'] >= $this->_img['target']['height']) + { + $cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2; + $cpy_h_offset = 0; + } + else + { + $cpy_w_offset = 0; + $cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2; + } } - $this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio']; - $cpy_w = $this->_img['main']['width']; - $cpy_h = $this->_img['main']['height']; - $cpy_w_offset = 0; - $cpy_h_offset = 0; } - elseif ($mode == 3) { - //fill remaining background with a color to keep aspectratio - $final_aspectratio = $width / $height; - if ($final_aspectratio < $this->_img['main']['aspectratio']) { + elseif (($width == 0 && $height > 0) || ($width > 0 && $height == 0) && is_int($width) && is_int($height)) + { + //keep aspectratio + if ($autorotate == true) + { + if ($this->_img['main']['bias'] == IMAGE_TOOLBOX_BIAS_HORIZONTAL && $width > 0) + { + $height = $width; + $width = 0; + } + elseif ($this->_img['main']['bias'] == IMAGE_TOOLBOX_BIAS_VERTICAL && $height > 0) + { + $width = $height; + $height = 0; + } + } + + ($width >= $height) + ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) + : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); + + if ($width != 0) + { $this->_img['target']['width'] = $width; $this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio']; - $cpy_w_offset2 = 0; - $cpy_h_offset2 = (integer) (($height - $this->_img['target']['height']) / 2); } - else { + else + { $this->_img['target']['height'] = $height; $this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio']; - $cpy_h_offset2 = 0; - $cpy_w_offset2 = 0; } + $this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio']; + $cpy_w = $this->_img['main']['width']; $cpy_h = $this->_img['main']['height']; $cpy_w_offset = 0; $cpy_h_offset = 0; } - elseif ($mode == 4) { - //smart crop - ($width >= $height) - ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) - : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); + else + { + trigger_error($this->_error_prefix . 'Outputwidth and -height must be integers greater zero.', E_USER_ERROR); + return null; + } - if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) - { - $this->_img['target']['width'] = $width; - $this->_img['target']['height'] = $height; - } - else - { - $this->_img['target']['width'] = $height; - $this->_img['target']['height'] = $width; - } + //create resized picture + $functionname = $this->_imagecreatefunction; - $this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height']; + $dummy = $functionname($this->_img['target']['width'] + 1, $this->_img['target']['height'] + 1); - if ($this->_img['main']['width'] / $this->_img['target']['width'] >= $this->_img['main']['height'] / $this->_img['target']['height']) - { - $cpy_h = $this->_img['main']['height']; - $cpy_w = (integer) $this->_img['main']['height'] * $this->_img['target']['aspectratio']; - $cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2; - $cpy_h_offset = 0; - } - else - { - $cpy_w = $this->_img['main']['width']; - $cpy_h = (integer) $this->_img['main']['width'] / $this->_img['target']['aspectratio']; - $cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2; - $cpy_w_offset = 0; - } + if ($this->_img['main']['type'] == 3) + { + // turning off alpha blending (to ensure alpha channel information + // is preserved, rather than removed (blending with the rest of the + // image in the form of black)) + imagealphablending($dummy, false); - if ($this->_img['main']['width'] >= $this->_img['target']['height']) - { - $cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2; - $cpy_h_offset = 0; - } - else - { - $cpy_w_offset = 0; - $cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2; - } + // turning on alpha channel information saving (to ensure the full range + // of transparency is preserved) + imagesavealpha($dummy, true); } - } elseif (($width == 0 && $height > 0) || ($width > 0 && $height == 0) && is_int($width) && is_int($height)) { - //keep aspectratio - if ($autorotate == true) { - if ($this->_img['main']['bias'] == IMAGE_TOOLBOX_BIAS_HORIZONTAL && $width > 0) { - $height = $width; - $width = 0; - } elseif ($this->_img['main']['bias'] == IMAGE_TOOLBOX_BIAS_VERTICAL && $height > 0) { - $width = $height; - $height = 0; - } + + $resize_function = $this->_resize_function; + + $resize_function($dummy, $this->_img['main']['resource'], 0, 0, $cpy_w_offset, $cpy_h_offset, $this->_img['target']['width'], $this->_img['target']['height'], $cpy_w, $cpy_h); + + if ($mode == 2) + { + $this->_img['target']['resource'] = $functionname($width, $height); + $fillcolor = $this->_hexToPHPColor($bgcolor); + imagefill($this->_img['target']['resource'], 0, 0, $fillcolor); } - ($width >= $height) ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL); - if ($width != 0) { - $this->_img['target']['width'] = $width; - $this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio']; - } else { - $this->_img['target']['height'] = $height; - $this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio']; + else + { + $this->_img['target']['resource'] = $functionname($this->_img['target']['width'], $this->_img['target']['height']); + $cpy_w_offset2 = 0; + $cpy_h_offset2 = 0; } - $this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio']; - - $cpy_w = $this->_img['main']['width']; - $cpy_h = $this->_img['main']['height']; - $cpy_w_offset = 0; - $cpy_h_offset = 0; - } else { - trigger_error($this->_error_prefix . 'Outputwidth and -height must be integers greater zero.', E_USER_ERROR); - return null; - } - //create resized picture - $functionname = $this->_imagecreatefunction; + if ($this->_img['main']['type'] == 3) + { + // turning off alpha blending (to ensure alpha channel information + // is preserved, rather than removed (blending with the rest of the + // image in the form of black)) + imagealphablending($this->_img['target']['resource'], false); - $dummy = $functionname($this->_img['target']['width'] + 1, $this->_img['target']['height'] + 1); + // turning on alpha channel information saving (to ensure the full range + // of transparency is preserved) + imagesavealpha($this->_img['target']['resource'], true); + } - if ($this->_img['main']['type'] == 3) - { - imagealphablending($dummy, false); - imagesavealpha($dummy, true); - } - $resize_function = $this->_resize_function; - - $resize_function($dummy, $this->_img["main"]["resource"], 0, 0, $cpy_w_offset, $cpy_h_offset, $this->_img["target"]["width"], $this->_img["target"]["height"], $cpy_w, $cpy_h); - - if ($mode == 2) { - $this->_img['target']['resource'] = $functionname($width, $height); - $fillcolor = $this->_hexToPHPColor($bgcolor); - imagefill($this->_img['target']['resource'], 0, 0, $fillcolor); - } else { - $this->_img['target']['resource'] = $functionname($this->_img['target']['width'], $this->_img['target']['height']); - $cpy_w_offset2 = 0; - $cpy_h_offset2 = 0; - } - if ($this->_img['main']['type'] == 3) { - imagealphablending($this->_img['target']['resource'], false); - imagesavealpha($this->_img['target']['resource'], true); - } - imagecopy($this->_img['target']['resource'], $dummy, $cpy_w_offset2, $cpy_h_offset2, 0, 0, $this->_img['target']['width'], $this->_img['target']['height']); - imagedestroy($dummy); + imagecopy($this->_img['target']['resource'], $dummy, $cpy_w_offset2, $cpy_h_offset2, 0, 0, $this->_img['target']['width'], $this->_img['target']['height']); + imagedestroy($dummy); - if ($mode == 2) { - $this->_img['target']['width'] = $width; - $this->_img['target']['height'] = $height; - } - //update _img['main'] with new data - foreach ($this->_img['target'] as $key => $value) { - $this->_img['main'][$key] = $value; - } - unset ($this->_img['target']); + if ($mode == 2) + { + $this->_img['target']['width'] = $width; + $this->_img['target']['height'] = $height; + } - return true; - } + //update _img['main'] with new data + foreach ($this->_img['target'] as $key => $value) + $this->_img['main'][$key] = $value; - /** - * Adds a new image resource based on the given parameters. - * - * It does not overwrite the existing image resource.
- * Instead it is used to load a second image to merge with the existing image. - * - * Parameter:
- * string $file imagefile to load
- * Or:
- * integer $width imagewidth of new image to be created
- * integer $height imageheight of new image to be created
- * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
- */ - function addImage() { - $args = func_get_args(); - $argc = func_num_args(); + unset ($this->_img['target']); - if ($this->_addImage($argc, $args)) { return true; - } else { - trigger_error($this->_error_prefix . 'failed to add image.', E_USER_ERROR); - return false; } - } - /** - * Blend two images. - * - * Original image and the image loaded with {@link addImage() addImage}
- * NOTE: This operation can take very long and is not intended for realtime use. - * (but of course depends on the power of your server :) ) - * - * IMPORTANT: {@link imagecopymerge() imagecopymerged} doesn't work with PHP 4.3.2. Bug ID: {@link http://bugs.php.net/bug.php?id=24816 24816}
- * - * $x:
- * negative values are possible.
- * You can also use the following keywords ('left', 'center' or 'middle', 'right').
- * Additionally you can specify an offset in pixel with the keywords like this 'left +10'.
- * (default = 0) - * - * $y:
- * negative values are possible.
- * You can also use the following keywords ('top', 'center' or 'middle', 'bottom').
- * Additionally you can specify an offset in pixel with the keywords like this 'bottom -10'.
- * (default = 0) - * - * Possible values for $mode: - *
    - *
  • IMAGE_TOOLBOX_BLEND_COPY
    • - *
  • IMAGE_TOOLBOX_BLEND_MULTIPLY
    • - *
  • IMAGE_TOOLBOX_BLEND_SCREEN
    • - *
  • IMAGE_TOOLBOX_BLEND_DIFFERENCE
    • - *
  • IMAGE_TOOLBOX_BLEND_EXCLUSION
    • - *
  • IMAGE_TOOLBOX_BLEND_OVERLAY
    • - *
- * - * $percent:
- * alpha value in percent of blend effect (0 - 100)
- * (default = 100) - * - * @param string|integer $x Horizontal position of second image. - * @param integer $y Vertical position of second image. negative values are possible. - * @param integer $mode blend mode. - * @param integer $percent alpha value - */ - function blend($x = 0, $y = 0, $mode = IMAGE_TOOLBOX_BLEND_COPY, $percent = 100) { - if (is_string($x) || is_string($y)) { - list($xalign, $xalign_offset) = explode(" ", $x); - list($yalign, $yalign_offset) = explode(" ", $y); - } - if (is_string($x)) { - switch ($xalign) { - case 'left': - $dst_x = 0 + $xalign_offset; - $src_x = 0; - $src_w = $this->_img['operator']['width']; - break; - case 'right': - $dst_x = ($this->_img['main']['width'] - $this->_img['operator']['width']) + $xalign_offset; - $src_x = 0; - $src_w = $this->_img['operator']['width']; - break; + /** + * Adds a new image resource based on the given parameters. + * + * It does not overwrite the existing image resource.
+ * Instead it is used to load a second image to merge with the existing image. + * + * Parameter:
+ * string $file imagefile to load
+ * Or:
+ * integer $width imagewidth of new image to be created
+ * integer $height imageheight of new image to be created
+ * string $fillcolor optional fill the new image with this color (hexformat, e.g. '#FF0000')
+ */ + function addImage() + { + $args = func_get_args(); + $argc = func_num_args(); - case 'middle': - case 'center': - $dst_x = (($this->_img['main']['width'] / 2) - ($this->_img['operator']['width'] / 2)) + $yalign_offset; - $src_x = 0; - $src_w = $this->_img['operator']['width']; - break; + if ($this->_addImage($argc, $args)) + { + return true; } - } else { - if ($x >= 0) { - $dst_x = $x; - $src_x = 0; - $src_w = $this->_img['operator']['width']; - } else { - $dst_x = 0; - $src_x = abs($x); - $src_w = $this->_img['operator']['width'] - $src_x; + else + { + trigger_error($this->_error_prefix . 'failed to add image.', E_USER_ERROR); + return false; } } - if (is_string($y)) { - switch ($yalign) { - case 'top': - $dst_y = 0 + $yalign_offset; - $src_y = 0; - $src_h = $this->_img['operator']['height']; - break; - case 'bottom': - $dst_y = ($this->_img['main']['height'] - $this->_img['operator']['height']) + $yalign_offset; - $src_y = 0; - $src_h = $this->_img['operator']['height']; - break; - case 'middle': - case 'center': - $dst_y = (($this->_img['main']['height'] / 2) - ($this->_img['operator']['height'] / 2)) + $yalign_offset; + /** + * Blend two images. + * + * Original image and the image loaded with {@link addImage() addImage}
+ * NOTE: This operation can take very long and is not intended for realtime use. + * (but of course depends on the power of your server :) ) + * + * IMPORTANT: {@link imagecopymerge() imagecopymerged} doesn't work with PHP 4.3.2. Bug ID: {@link http://bugs.php.net/bug.php?id=24816 24816}
+ * + * $x:
+ * negative values are possible.
+ * You can also use the following keywords ('left', 'center' or 'middle', 'right').
+ * Additionally you can specify an offset in pixel with the keywords like this 'left +10'.
+ * (default = 0) + * + * $y:
+ * negative values are possible.
+ * You can also use the following keywords ('top', 'center' or 'middle', 'bottom').
+ * Additionally you can specify an offset in pixel with the keywords like this 'bottom -10'.
+ * (default = 0) + * + * Possible values for $mode: + *
    + *
  • IMAGE_TOOLBOX_BLEND_COPY
    • + *
  • IMAGE_TOOLBOX_BLEND_MULTIPLY
    • + *
  • IMAGE_TOOLBOX_BLEND_SCREEN
    • + *
  • IMAGE_TOOLBOX_BLEND_DIFFERENCE
    • + *
  • IMAGE_TOOLBOX_BLEND_EXCLUSION
    • + *
  • IMAGE_TOOLBOX_BLEND_OVERLAY
    • + *
+ * + * $percent:
+ * alpha value in percent of blend effect (0 - 100)
+ * (default = 100) + * + * @param string|integer $x Horizontal position of second image. + * @param integer $y Vertical position of second image. negative values are possible. + * @param integer $mode blend mode. + * @param integer $percent alpha value + */ + function blend($x = 0, $y = 0, $mode = IMAGE_TOOLBOX_BLEND_COPY, $percent = 100) + { + if (is_string($x) || is_string($y)) + { + list($xalign, $xalign_offset) = explode(" ", $x); + list($yalign, $yalign_offset) = explode(" ", $y); + } + + if (is_string($x)) + { + switch ($xalign) + { + case 'left': + $dst_x = 0 + $xalign_offset; + $src_x = 0; + $src_w = $this->_img['operator']['width']; + break; + + case 'right': + $dst_x = ($this->_img['main']['width'] - $this->_img['operator']['width']) + $xalign_offset; + $src_x = 0; + $src_w = $this->_img['operator']['width']; + break; + + case 'middle': + case 'center': + $dst_x = (($this->_img['main']['width'] / 2) - ($this->_img['operator']['width'] / 2)) + $yalign_offset; + $src_x = 0; + $src_w = $this->_img['operator']['width']; + break; + } + } + else + { + if ($x >= 0) + { + $dst_x = $x; + $src_x = 0; + $src_w = $this->_img['operator']['width']; + } + else + { + $dst_x = 0; + $src_x = abs($x); + $src_w = $this->_img['operator']['width'] - $src_x; + } + } + + if (is_string($y)) + { + switch ($yalign) + { + case 'top': + $dst_y = 0 + $yalign_offset; + $src_y = 0; + $src_h = $this->_img['operator']['height']; + break; + + case 'bottom': + $dst_y = ($this->_img['main']['height'] - $this->_img['operator']['height']) + $yalign_offset; + $src_y = 0; + $src_h = $this->_img['operator']['height']; + break; + + case 'middle': + case 'center': + $dst_y = (($this->_img['main']['height'] / 2) - ($this->_img['operator']['height'] / 2)) + $yalign_offset; + $src_y = 0; + $src_h = $this->_img['operator']['height']; + break; + } + } + else + { + if ($y >= 0) + { + $dst_y = $y; $src_y = 0; $src_h = $this->_img['operator']['height']; - break; - } - } else { - if ($y >= 0) { - $dst_y = $y; - $src_y = 0; - $src_h = $this->_img['operator']['height']; - } else { - $dst_y = 0; - $src_y = abs($y); - $src_h = $this->_img['operator']['height'] - $src_y; + } + else + { + $dst_y = 0; + $src_y = abs($y); + $src_h = $this->_img['operator']['height'] - $src_y; + } } - } - if(($xalign == 'repeat') && ($yalign == 'repeat')){ + if (($xalign == 'repeat') && ($yalign == 'repeat')) + { + $xLogoPosition = 0; + $yLogoPosition = 0; - $xLogoPosition = 0; - $yLogoPosition = 0; + $widthWatermark = $this->_img['operator']['width']; + $heightWatermark = $this->_img['operator']['height']; + $widthPhoto = $this->_img['main']['width']; + $heightPhoto = $this->_img['main']['height']; - $widthWatermark = $this->_img['operator']['width']; - $heightWatermark = $this->_img['operator']['height']; - $widthPhoto = $this->_img['main']['width']; - $heightPhoto = $this->_img['main']['height']; + // x line + $__xRepeat = ceil($widthPhoto / $widthWatermark); - // x line - $__xRepeat = ceil($widthPhoto / $widthWatermark); - for ($i = 0; $i <= $__xRepeat; $i++) { - $this->_imagecopymerge_alpha($this->_img['main']['resource'], $this->_img['operator']['resource'], ($xLogoPosition + $widthWatermark * $i), $yLogoPosition, 0, 0, ImageSX($this->_img['operator']['resource']), ImageSY($this->_img['operator']['resource']), $percent); + for ($i = 0; $i <= $__xRepeat; $i++) + { + $this->_imagecopymerge_alpha($this->_img['main']['resource'], $this->_img['operator']['resource'], ($xLogoPosition + $widthWatermark * $i), $yLogoPosition, 0, 0, ImageSX($this->_img['operator']['resource']), ImageSY($this->_img['operator']['resource']), $percent); - // y line - $__yRepeat = ceil($heightPhoto / $heightWatermark); - for ($ii = 1; $ii <= $__yRepeat; $ii++) { - $this->_imagecopymerge_alpha($this->_img['main']['resource'], $this->_img['operator']['resource'], ($xLogoPosition + $widthWatermark * $i), ($yLogoPosition + $widthWatermark * $ii), 0, 0, ImageSX($this->_img['operator']['resource']), ImageSY($this->_img['operator']['resource']), $percent); - } - } + // y line + $__yRepeat = ceil($heightPhoto / $heightWatermark); - }else{ + for ($ii = 1; $ii <= $__yRepeat; $ii++) + { + $this->_imagecopymerge_alpha($this->_img['main']['resource'], $this->_img['operator']['resource'], ($xLogoPosition + $widthWatermark * $i), ($yLogoPosition + $widthWatermark * $ii), 0, 0, ImageSX($this->_img['operator']['resource']), ImageSY($this->_img['operator']['resource']), $percent); + } + } - $this->_imageBlend($mode, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent); + } + else + { + $this->_imageBlend($mode, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent); + } + return true; } - return true; - } - /* - * PNG ALPHA CHANNEL SUPPORT for imagecopymerge(); - * This is a function like imagecopymerge but it handle alpha channel well!!! - */ - private function _imagecopymerge_alpha($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $pct){ + /* + * PNG ALPHA CHANNEL SUPPORT for imagecopymerge(); + * This is a function like imagecopymerge but it handle alpha channel well!!! + */ + private function _imagecopymerge_alpha($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $pct) + { + $opacity = $pct; + + // creating a cut resource + $cut = imagecreatetruecolor($src_w, $src_h); - $opacity = $pct; + // copying that section of the background to the cut + imagecopy($cut, $dst_im, 0, 0, $dst_x, $dst_y, $src_w, $src_h); - // creating a cut resource - $cut = imagecreatetruecolor($src_w, $src_h); + // placing the watermark now + imagecopy($cut, $src_im, 0, 0, $src_x, $src_y, $src_w, $src_h); - // copying that section of the background to the cut - imagecopy($cut, $dst_im, 0, 0, $dst_x, $dst_y, $src_w, $src_h); + imagecopymerge($dst_im, $cut, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $opacity); + } - // placing the watermark now - imagecopy($cut, $src_im, 0, 0, $src_x, $src_y, $src_w, $src_h); - imagecopymerge($dst_im, $cut, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $opacity); - } + /** + * Blend two images. + * + * @access private + */ + function _imageBlend($mode, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent) + { + if ($mode == IMAGE_TOOLBOX_BLEND_COPY) + { + if ($percent == 100) + imagecopy($this->_img['main']['resource'], $this->_img['operator']['resource'], $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h); + else + $this->_imagecopymerge_alpha($this->_img['main']['resource'], $this->_img['operator']['resource'], $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent); - /** - * Blend two images. - * - * @access private - */ - function _imageBlend($mode, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent) { - if ($mode == IMAGE_TOOLBOX_BLEND_COPY) { - if ($percent == 100) { - imagecopy($this->_img['main']['resource'], $this->_img['operator']['resource'], $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h); - } else { - $this->_imagecopymerge_alpha($this->_img['main']['resource'], $this->_img['operator']['resource'], $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent); } - } else { - $functionname = $this->_imagecreatefunction; - $dummy = $functionname($src_w, $src_h); - for ($y=0; $y < $src_h; $y++) { - for ($x=0; $x < $src_w; $x++) { - $colorindex = imagecolorat($this->_img['main']['resource'], $dst_x + $x, $dst_y + $y); - $colorrgb1 = imagecolorsforindex($this->_img['main']['resource'], $colorindex); - $colorindex = imagecolorat($this->_img['operator']['resource'], $src_x + $x, $src_y + $y); - $colorrgb2 = imagecolorsforindex($this->_img['operator']['resource'], $colorindex); - $colorblend = $this->_calculateBlendvalue($mode, $colorrgb1, $colorrgb2); - $newcolor = imagecolorallocate($dummy, $colorblend['red'], $colorblend['green'], $colorblend['blue']); - imagesetpixel($dummy, $x, $y, $newcolor); + else + { + $functionname = $this->_imagecreatefunction; + $dummy = $functionname($src_w, $src_h); + + for ($y=0; $y < $src_h; $y++) + { + for ($x=0; $x < $src_w; $x++) + { + $colorindex = imagecolorat($this->_img['main']['resource'], $dst_x + $x, $dst_y + $y); + $colorrgb1 = imagecolorsforindex($this->_img['main']['resource'], $colorindex); + $colorindex = imagecolorat($this->_img['operator']['resource'], $src_x + $x, $src_y + $y); + $colorrgb2 = imagecolorsforindex($this->_img['operator']['resource'], $colorindex); + $colorblend = $this->_calculateBlendvalue($mode, $colorrgb1, $colorrgb2); + $newcolor = imagecolorallocate($dummy, $colorblend['red'], $colorblend['green'], $colorblend['blue']); + imagesetpixel($dummy, $x, $y, $newcolor); + } } - } - $this->_img['target']['resource'] = $functionname($this->_img['main']['width'], $this->_img['main']['height']); - imagecopy($this->_img['target']['resource'], $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); - imagecopymerge($this->_img['target']['resource'], $dummy, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent); + $this->_img['target']['resource'] = $functionname($this->_img['main']['width'], $this->_img['main']['height']); + imagecopy($this->_img['target']['resource'], $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']); + imagecopymerge($this->_img['target']['resource'], $dummy, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent); - $this->_img['main']['resource'] = $this->_img['target']['resource']; - unset($this->_img['target']); + $this->_img['main']['resource'] = $this->_img['target']['resource']; + unset($this->_img['target']); + } } - } - /** - * Calculate blend values for given blend mode - * - * @access private - */ - function _calculateBlendvalue($mode, $colorrgb1, $colorrgb2) { - switch ($mode) { - case IMAGE_TOOLBOX_BLEND_MULTIPLY: - $c['red'] = ($colorrgb1['red'] * $colorrgb2['red']) >> 8; - $c['green'] = ($colorrgb1['green'] * $colorrgb2['green']) >> 8; - $c['blue'] = ($colorrgb1['blue'] * $colorrgb2['blue']) >> 8; - break; - - case IMAGE_TOOLBOX_BLEND_SCREEN: - $c['red'] = 255 - ((255 - $colorrgb1['red']) * (255 - $colorrgb2['red']) >> 8); - $c['green'] = 255 - ((255 - $colorrgb1['green']) * (255 - $colorrgb2['green']) >> 8); - $c['blue'] = 255 - ((255 - $colorrgb1['blue']) * (255 - $colorrgb2['blue']) >> 8); - break; - - case IMAGE_TOOLBOX_BLEND_DIFFERENCE: - $c['red'] = abs($colorrgb1['red'] - $colorrgb2['red']); - $c['green'] = abs($colorrgb1['green'] - $colorrgb2['green']); - $c['blue'] = abs($colorrgb1['blue'] - $colorrgb2['blue']); - break; - - case IMAGE_TOOLBOX_BLEND_NEGATION: - $c['red'] = 255 - abs(255 - $colorrgb1['red'] - $colorrgb2['red']); - $c['green'] = 255 - abs(255 - $colorrgb1['green'] - $colorrgb2['green']); - $c['blue'] = 255 - abs(255 - $colorrgb1['blue'] - $colorrgb2['blue']); - break; - - case IMAGE_TOOLBOX_BLEND_EXCLUSION: - $c['red'] = $colorrgb1['red'] + $colorrgb2['red'] - (($colorrgb1['red'] * $colorrgb2['red']) >> 7); - $c['green'] = $colorrgb1['green'] + $colorrgb2['green'] - (($colorrgb1['green'] * $colorrgb2['green']) >> 7); - $c['blue'] = $colorrgb1['blue'] + $colorrgb2['blue'] - (($colorrgb1['blue'] * $colorrgb2['blue']) >> 7); - break; - - case IMAGE_TOOLBOX_BLEND_OVERLAY: - if ($colorrgb1['red'] < 128) { - $c['red']= ($colorrgb1['red'] * $colorrgb2['red']) >> 7; - } else { - $c['red'] = 255 - ((255 - $colorrgb1['red']) * (255 - $colorrgb2['red']) >> 7); - } - if ($colorrgb1['green'] < 128) { - $c['green'] = ($colorrgb1['green'] * $colorrgb2['green']) >> 7; - } else { - $c['green'] = 255 - ((255 - $colorrgb1['green']) * (255 - $colorrgb2['green']) >> 7); - } - if ($colorrgb1['blue'] < 128) { - $c['blue'] = ($colorrgb1['blue'] * $colorrgb2['blue']) >> 7; - } else { - $c['blue'] = 255 - ((255 - $colorrgb1['blue']) * (255 - $colorrgb2['blue']) >> 7); - } - break; - default: - break; - } - return $c; - } + /** + * Calculate blend values for given blend mode + * + * @access private + */ + function _calculateBlendvalue($mode, $colorrgb1, $colorrgb2) + { + switch ($mode) + { + case IMAGE_TOOLBOX_BLEND_MULTIPLY: + $c['red'] = ($colorrgb1['red'] * $colorrgb2['red']) >> 8; + $c['green'] = ($colorrgb1['green'] * $colorrgb2['green']) >> 8; + $c['blue'] = ($colorrgb1['blue'] * $colorrgb2['blue']) >> 8; + break; - /** - * convert iso character coding to unicode (PHP conform) - * needed for TTF text generation of special characters (Latin-2) - * - * @access private - */ - function _iso2uni($isoline) { - $iso2uni = array( - 173 => "¡", - 155 => "¢", - 156 => "£", - 15 => "¤", - 157 => "¥", - 124 => "¦", - 21 => "§", - 249 => "¨", - 184 => "©", - 166 => "ª", - 174 => "«", - 170 => "¬", - 169 => "®", - 238 => "¯", - 248 => "°", - 241 => "±", - 253 => "²", - 252 => "³", - 239 => "´", - 230 => "µ", - 20 => "¶", - 250 => "·", - 247 => "¸", - 251 => "¹", - 167 => "º", - 175 => "»", - 172 => "¼", - 171 => "½", - 243 => "¾", - 168 => "¿", - 183 => "À", - 181 => "Á", - 182 => "Â", - 199 => "Ã", - 142 => "Ä", - 143 => "Å", - 146 => "Æ", - 128 => "Ç", - 212 => "È", - 144 => "É", - 210 => "Ê", - 211 => "Ë", - 141 => "Ì", - 161 => "Í", - 140 => "Î", - 139 => "Ï", - 209 => "Ð", - 165 => "Ñ", - 227 => "Ò", - 224 => "Ó", - 226 => "Ô", - 229 => "Õ", - 153 => "Ö", - 158 => "×", - 157 => "Ø", - 235 => "Ù", - 233 => "Ú", - 234 => "Û", - 154 => "Ü", - 237 => "Ý", - 232 => "Þ", - 225 => "ß", - 133 => "à", - 160 => "á", - 131 => "â", - 198 => "ã", - 132 => "ä", - 134 => "å", - 145 => "æ", - 135 => "ç", - 138 => "è", - 130 => "é", - 136 => "ê", - 137 => "ë", - 141 => "ì", - 161 => "í", - 140 => "î", - 139 => "ï", - 208 => "ð", - 164 => "ñ", - 149 => "ò", - 162 => "ó", - 147 => "ô", - 228 => "õ", - 148 => "ö", - 246 => "÷", - 155 => "ø", - 151 => "ù", - 163 => "ú", - 150 => "û", - 129 => "ü", - 236 => "ý", - 231 => "þ", - 152 => "ÿ" - ); - $uniline = ''; - $len = strlen($isoline); - for ($i=0; $i < $len; $i++){ - $thischar = substr($isoline, $i, 1); - $key = ord($thischar); - $uniline .= isset($iso2uni[$key]) ? $iso2uni[$key] : $thischar; - } - return $uniline; - } + case IMAGE_TOOLBOX_BLEND_SCREEN: + $c['red'] = 255 - ((255 - $colorrgb1['red']) * (255 - $colorrgb2['red']) >> 8); + $c['green'] = 255 - ((255 - $colorrgb1['green']) * (255 - $colorrgb2['green']) >> 8); + $c['blue'] = 255 - ((255 - $colorrgb1['blue']) * (255 - $colorrgb2['blue']) >> 8); + break; - /** - * Writes text over the image - * - * only TTF fonts are supported at the moment - * - * $x:
- * You can also use the following keywords ('left', 'center' or 'middle', 'right').
- * Additionally you can specify an offset in pixel with the keywords like this 'left +10'.
- * (default = 0) - * - * $y:
- * You can also use the following keywords ('top', 'center' or 'middle', 'bottom').
- * Additionally you can specify an offset in pixel with the keywords like this 'bottom -10'.
- * (default = 0) - * - * @param string $text text to be generated. - * @param string $font TTF fontfile to be used. (relative paths are ok). - * @param integer $size textsize. - * @param string $color textcolor in hexformat (e.g. '#FF0000'). - * @param string|integer $x horizontal postion in pixel. - * @param string|integer $y vertical postion in pixel. - * @param integer $angle rotation of the text. - */ - function addText($text, $font, $size, $color, $x, $y, $angle = 0) { - global $HTTP_SERVER_VARS; + case IMAGE_TOOLBOX_BLEND_DIFFERENCE: + $c['red'] = abs($colorrgb1['red'] - $colorrgb2['red']); + $c['green'] = abs($colorrgb1['green'] - $colorrgb2['green']); + $c['blue'] = abs($colorrgb1['blue'] - $colorrgb2['blue']); + break; - if (substr($font, 0, 1) == DIRECTORY_SEPARATOR || (substr($font, 1, 1) == ":" && (substr($font, 2, 1) == "\\" || substr($font, 2, 1) == "/"))) { - $prepath = ''; - } else { - $prepath = substr($HTTP_SERVER_VARS['SCRIPT_FILENAME'], 0, strrpos($HTTP_SERVER_VARS['SCRIPT_FILENAME'], DIRECTORY_SEPARATOR)) . DIRECTORY_SEPARATOR; - } - $text = $this->_iso2uni($text); - if (is_string($x) || is_string($y)) { - $textsize = imagettfbbox($size, $angle, $prepath.$font, $text); - $textwidth = abs($textsize[2]); - $textheight = abs($textsize[7]); - list($xalign, $xalign_offset) = explode(" ", $x); - list($yalign, $yalign_offset) = explode(" ", $y); - } - if (is_string($x)) { - switch ($xalign) { - case 'left': - $x = 0 + $xalign_offset; + case IMAGE_TOOLBOX_BLEND_NEGATION: + $c['red'] = 255 - abs(255 - $colorrgb1['red'] - $colorrgb2['red']); + $c['green'] = 255 - abs(255 - $colorrgb1['green'] - $colorrgb2['green']); + $c['blue'] = 255 - abs(255 - $colorrgb1['blue'] - $colorrgb2['blue']); + break; + + case IMAGE_TOOLBOX_BLEND_EXCLUSION: + $c['red'] = $colorrgb1['red'] + $colorrgb2['red'] - (($colorrgb1['red'] * $colorrgb2['red']) >> 7); + $c['green'] = $colorrgb1['green'] + $colorrgb2['green'] - (($colorrgb1['green'] * $colorrgb2['green']) >> 7); + $c['blue'] = $colorrgb1['blue'] + $colorrgb2['blue'] - (($colorrgb1['blue'] * $colorrgb2['blue']) >> 7); break; - case 'right': - $x = ($this->_img['main']['width'] - $textwidth) + $xalign_offset; + case IMAGE_TOOLBOX_BLEND_OVERLAY: + if ($colorrgb1['red'] < 128) + { + $c['red']= ($colorrgb1['red'] * $colorrgb2['red']) >> 7; + } + else + { + $c['red'] = 255 - ((255 - $colorrgb1['red']) * (255 - $colorrgb2['red']) >> 7); + } + + if ($colorrgb1['green'] < 128) + { + $c['green'] = ($colorrgb1['green'] * $colorrgb2['green']) >> 7; + } + else + { + $c['green'] = 255 - ((255 - $colorrgb1['green']) * (255 - $colorrgb2['green']) >> 7); + } + + if ($colorrgb1['blue'] < 128) + { + $c['blue'] = ($colorrgb1['blue'] * $colorrgb2['blue']) >> 7; + } + else + { + $c['blue'] = 255 - ((255 - $colorrgb1['blue']) * (255 - $colorrgb2['blue']) >> 7); + } break; - case 'middle': - case 'center': - $x = (($this->_img['main']['width'] - $textwidth) / 2) + $xalign_offset; + default: break; } + + return $c; } - if (is_string($y)) { - switch ($yalign) { - case 'top': - $y = (0 + $textheight) + $yalign_offset; - break; - case 'bottom': - $y = ($this->_img['main']['height']) + $yalign_offset; - break; - case 'middle': - case 'center': - $y = ((($this->_img['main']['height'] - $textheight) / 2) + $textheight) + $yalign_offset; - break; + /** + * convert iso character coding to unicode (PHP conform) + * needed for TTF text generation of special characters (Latin-2) + * + * @access private + */ + function _iso2uni($isoline) + { + $iso2uni = array( + 173 => "¡", + 155 => "¢", + 156 => "£", + 15 => "¤", + 157 => "¥", + 124 => "¦", + 21 => "§", + 249 => "¨", + 184 => "©", + 166 => "ª", + 174 => "«", + 170 => "¬", + 169 => "®", + 238 => "¯", + 248 => "°", + 241 => "±", + 253 => "²", + 252 => "³", + 239 => "´", + 230 => "µ", + 20 => "¶", + 250 => "·", + 247 => "¸", + 251 => "¹", + 167 => "º", + 175 => "»", + 172 => "¼", + 171 => "½", + 243 => "¾", + 168 => "¿", + 183 => "À", + 181 => "Á", + 182 => "Â", + 199 => "Ã", + 142 => "Ä", + 143 => "Å", + 146 => "Æ", + 128 => "Ç", + 212 => "È", + 144 => "É", + 210 => "Ê", + 211 => "Ë", + 141 => "Ì", + 161 => "Í", + 140 => "Î", + 139 => "Ï", + 209 => "Ð", + 165 => "Ñ", + 227 => "Ò", + 224 => "Ó", + 226 => "Ô", + 229 => "Õ", + 153 => "Ö", + 158 => "×", + 157 => "Ø", + 235 => "Ù", + 233 => "Ú", + 234 => "Û", + 154 => "Ü", + 237 => "Ý", + 232 => "Þ", + 225 => "ß", + 133 => "à", + 160 => "á", + 131 => "â", + 198 => "ã", + 132 => "ä", + 134 => "å", + 145 => "æ", + 135 => "ç", + 138 => "è", + 130 => "é", + 136 => "ê", + 137 => "ë", + 141 => "ì", + 161 => "í", + 140 => "î", + 139 => "ï", + 208 => "ð", + 164 => "ñ", + 149 => "ò", + 162 => "ó", + 147 => "ô", + 228 => "õ", + 148 => "ö", + 246 => "÷", + 155 => "ø", + 151 => "ù", + 163 => "ú", + 150 => "û", + 129 => "ü", + 236 => "ý", + 231 => "þ", + 152 => "ÿ" + ); + $uniline = ''; + $len = strlen($isoline); + + for ($i=0; $i < $len; $i++) + { + $thischar = substr($isoline, $i, 1); + $key = ord($thischar); + $uniline .= isset($iso2uni[$key]) ? $iso2uni[$key] : $thischar; + } + + return $uniline; + } + + + /** + * Writes text over the image + * + * only TTF fonts are supported at the moment + * + * $x:
+ * You can also use the following keywords ('left', 'center' or 'middle', 'right').
+ * Additionally you can specify an offset in pixel with the keywords like this 'left +10'.
+ * (default = 0) + * + * $y:
+ * You can also use the following keywords ('top', 'center' or 'middle', 'bottom').
+ * Additionally you can specify an offset in pixel with the keywords like this 'bottom -10'.
+ * (default = 0) + * + * @param string $text text to be generated. + * @param string $font TTF fontfile to be used. (relative paths are ok). + * @param integer $size textsize. + * @param string $color textcolor in hexformat (e.g. '#FF0000'). + * @param string|integer $x horizontal postion in pixel. + * @param string|integer $y vertical postion in pixel. + * @param integer $angle rotation of the text. + */ + function addText($text, $font, $size, $color, $x, $y, $angle = 0) + { + global $HTTP_SERVER_VARS; + + if (substr($font, 0, 1) == DIRECTORY_SEPARATOR || (substr($font, 1, 1) == ":" && (substr($font, 2, 1) == "\\" || substr($font, 2, 1) == "/"))) + $prepath = ''; + else + $prepath = substr($HTTP_SERVER_VARS['SCRIPT_FILENAME'], 0, strrpos($HTTP_SERVER_VARS['SCRIPT_FILENAME'], DIRECTORY_SEPARATOR)) . DIRECTORY_SEPARATOR; + + $text = $this->_iso2uni($text); + + if (is_string($x) || is_string($y)) + { + $textsize = imagettfbbox($size, $angle, $prepath.$font, $text); + $textwidth = abs($textsize[2]); + $textheight = abs($textsize[7]); + list($xalign, $xalign_offset) = explode(" ", $x); + list($yalign, $yalign_offset) = explode(" ", $y); + } + + if (is_string($x)) + { + switch ($xalign) + { + case 'left': + $x = 0 + $xalign_offset; + break; + + case 'right': + $x = ($this->_img['main']['width'] - $textwidth) + $xalign_offset; + break; + + case 'middle': + case 'center': + $x = (($this->_img['main']['width'] - $textwidth) / 2) + $xalign_offset; + break; + } + } + + if (is_string($y)) + { + switch ($yalign) + { + case 'top': + $y = (0 + $textheight) + $yalign_offset; + break; + + case 'bottom': + $y = ($this->_img['main']['height']) + $yalign_offset; + break; + + case 'middle': + case 'center': + $y = ((($this->_img['main']['height'] - $textheight) / 2) + $textheight) + $yalign_offset; + break; + } } + + imagettftext($this->_img['main']['resource'], $size, $angle, $x, $y, $this->_hexToPHPColor($color), $prepath . $font, $text); + + return true; } - imagettftext($this->_img['main']['resource'], $size, $angle, $x, $y, $this->_hexToPHPColor($color), $prepath . $font, $text); - return true; } -} ?> \ No newline at end of file diff --git a/inc/thumb.php b/inc/thumb.php index fc64422..be7cd16 100644 --- a/inc/thumb.php +++ b/inc/thumb.php @@ -133,13 +133,6 @@ exit; } - else - { - report404(); - - header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found'); - exit(0); - } list(, $thumbPath) = explode('/' . UPLOAD_DIR . '/', dirname($imagefile), 2); @@ -148,6 +141,12 @@ // -- if ($lenThumbDir && substr($thumbPath, -$lenThumbDir) != THUMBNAIL_DIR) { + if (! file_exists($baseDir . $imagefile)) + { + report404(); + + header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found'); + } exit(0); } @@ -212,7 +211,7 @@ if (file_exists($l . '.tmp')) { - include_once(BASE_DIR.'/functions/func.common.php'); + include_once (BASE_DIR . '/functions/func.common.php'); $abs_path = dirname((!strstr($_SERVER['PHP_SELF'], $_SERVER['SCRIPT_NAME']) && (@php_sapi_name() == 'cgi')) ? $_SERVER['PHP_SELF'] @@ -226,7 +225,7 @@ if ($img) { - file_put_contents("$imagePath/$imageName",$img); + file_put_contents("$imagePath/$imageName", $img); setEXIFF("$imagePath/$imageName"); @@ -246,9 +245,7 @@ $imageName = 'noimage.png'; if (! file_exists("$imagePath/$imageName")) - { $imagePath = $baseDir . '/' . UPLOAD_DIR . '/images'; - } if (! file_exists("$imagePath/$imageName")) exit(0); @@ -256,7 +253,7 @@ $save = false; } - require $baseDir.'/class/class.thumbnail.php'; + require $baseDir . '/class/class.thumbnail.php'; $thumb = new Image_Toolbox("$imagePath/$imageName");