| <?php | |
| /*********************************************************************** | |
| ** Title.........: NetPBM Driver | |
| ** Version.......: 1.0 | |
| ** Author........: Xiang Wei ZHUO <wei@zhuo.org> | |
| ** Filename......: NetPBM.php | |
| ** Last changed..: 30 Aug 2003 | |
| ** Notes.........: Orginal is from PEAR | |
| **/ | |
| // +----------------------------------------------------------------------+ | |
| // | PHP Version 4 | | |
| // +----------------------------------------------------------------------+ | |
| // | Copyright (c) 1997-2002 The PHP Group | | |
| // +----------------------------------------------------------------------+ | |
| // | This source file is subject to version 2.02 of the PHP license, | | |
| // | that is bundled with this package in the file LICENSE, and is | | |
| // | available at through the world-wide-web at | | |
| // | http://www.php.net/license/2_02.txt. | | |
| // | If you did not receive a copy of the PHP license and are unable to | | |
| // | obtain it through the world-wide-web, please send a note to | | |
| // | license@php.net so we can mail you a copy immediately. | | |
| // +----------------------------------------------------------------------+ | |
| // | Authors: Peter Bowyer <peter@mapledesign.co.uk> | | |
| // +----------------------------------------------------------------------+ | |
| // | |
| // $Id:NetPBM.php 709 2007-01-30 23:22:04Z ray $ | |
| // | |
| // Image Transformation interface using command line NetPBM | |
| require_once "../ImageManager/Classes/Transform.php"; | |
| Class Image_Transform_Driver_NetPBM extends Image_Transform | |
| { | |
| /** | |
| * associative array commands to be executed | |
| * @var array | |
| */ | |
| var $command = array(); | |
| /** | |
| * Class Constructor | |
| */ | |
| function Image_Transform_Driver_NetPBM() | |
| { | |
| $this->uid = md5($_SERVER['REMOTE_ADDR']); | |
| return true; | |
| } // End function Image_NetPBM | |
| /** | |
| * Load image | |
| * | |
| * @param string filename | |
| * | |
| * @return mixed none or a PEAR error object on error | |
| * @see PEAR::isError() | |
| */ | |
| function load($image) | |
| { | |
| //echo $image; | |
| $this->image = $image; | |
| $this->_get_image_details($image); | |
| } // End load | |
| /** | |
| * Resizes the image | |
| * | |
| * @return none | |
| * @see PEAR::isError() | |
| */ | |
| function _resize($new_x, $new_y) | |
| { | |
| // there's no technical reason why resize can't be called multiple | |
| // times...it's just silly to do so | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . | |
| "pnmscale -width $new_x -height $new_y"; | |
| $this->_set_new_x($new_x); | |
| $this->_set_new_y($new_y); | |
| } // End resize | |
| /** | |
| * Crop the image | |
| * | |
| * @param int $crop_x left column of the image | |
| * @param int $crop_y top row of the image | |
| * @param int $crop_width new cropped image width | |
| * @param int $crop_height new cropped image height | |
| */ | |
| function crop($crop_x, $crop_y, $crop_width, $crop_height) | |
| { | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . | |
| "pnmcut -left $crop_x -top $crop_y -width $crop_width -height $crop_height"; | |
| } | |
| /** | |
| * Rotates the image | |
| * | |
| * @param int $angle The angle to rotate the image through | |
| */ | |
| function rotate($angle) | |
| { | |
| $angle = -1*floatval($angle); | |
| if($angle > 90) | |
| { | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "pnmrotate -noantialias 90"; | |
| $this->rotate(-1*($angle-90)); | |
| } | |
| else if ($angle < -90) | |
| { | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "pnmrotate -noantialias -90"; | |
| $this->rotate(-1*($angle+90)); | |
| } | |
| else | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "pnmrotate -noantialias $angle"; | |
| } // End rotate | |
| /** | |
| * Flip the image horizontally or vertically | |
| * | |
| * @param boolean $horizontal true if horizontal flip, vertical otherwise | |
| */ | |
| function flip($horizontal) | |
| { | |
| if($horizontal) | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "pnmflip -lr"; | |
| else | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "pnmflip -tb"; | |
| } | |
| /** | |
| * Adjust the image gamma | |
| * | |
| * @param float $outputgamma | |
| * | |
| * @return none | |
| */ | |
| function gamma($outputgamma = 1.0) { | |
| $this->command[13] = IMAGE_TRANSFORM_LIB_PATH . "pnmgamma $outputgamma"; | |
| } | |
| /** | |
| * adds text to an image | |
| * | |
| * @param array options Array contains options | |
| * array( | |
| * 'text' // The string to draw | |
| * 'x' // Horizontal position | |
| * 'y' // Vertical Position | |
| * 'Color' // Font color | |
| * 'font' // Font to be used | |
| * 'size' // Size of the fonts in pixel | |
| * 'resize_first' // Tell if the image has to be resized | |
| * // before drawing the text | |
| * ) | |
| * | |
| * @return none | |
| */ | |
| function addText($params) | |
| { | |
| $default_params = array('text' => 'This is Text', | |
| 'x' => 10, | |
| 'y' => 20, | |
| 'color' => 'red', | |
| 'font' => 'Arial.ttf', | |
| 'size' => '12', | |
| 'angle' => 0, | |
| 'resize_first' => false); | |
| // we ignore 'resize_first' since the more logical approach would be | |
| // for the user to just call $this->_resize() _first_ ;) | |
| extract(array_merge($default_params, $params)); | |
| $this->command[] = "ppmlabel -angle $angle -colour $color -size " | |
| ."$size -x $x -y ".$y+$size." -text \"$text\""; | |
| } // End addText | |
| function _postProcess($type, $quality, $save_type) | |
| { | |
| $type = is_null($type) || $type==''? $this->type : $type; | |
| $save_type = is_null($save_type) || $save_type==''? $this->type : $save_type; | |
| //echo "TYPE:". $this->type; | |
| array_unshift($this->command, IMAGE_TRANSFORM_LIB_PATH | |
| . $type.'topnm '. $this->image); | |
| $arg = ''; | |
| switch(strtolower($save_type)){ | |
| case 'gif': | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "ppmquant 256"; | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "ppmto$save_type"; | |
| break; | |
| case 'jpg': | |
| case 'jpeg': | |
| $arg = "--quality=$quality"; | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "ppmto$save_type $arg"; | |
| break; | |
| default: | |
| $this->command[] = IMAGE_TRANSFORM_LIB_PATH . "pnmto$save_type $arg"; | |
| break; | |
| } // switch | |
| return implode('|', $this->command); | |
| } | |
| /** | |
| * Save the image file | |
| * | |
| * @param string $filename the name of the file to write to | |
| * @param string $type (jpeg,png...); | |
| * @param int $quality 75 | |
| * @return none | |
| */ | |
| function save($filename, $type=null, $quality = 85) | |
| { | |
| $cmd = $this->_postProcess('', $quality, $type) . ">$filename"; | |
| //if we have windows server | |
| if(isset($_ENV['OS']) && eregi('window',$_ENV['OS'])) | |
| $cmd = ereg_replace('/','\\',$cmd); | |
| //echo $cmd."##"; | |
| $output = system($cmd); | |
| error_log('NETPBM: '.$cmd); | |
| //error_log($output); | |
| $this->command = array(); | |
| } // End save | |
| /** | |
| * Display image without saving and lose changes | |
| * | |
| * @param string $type (jpeg,png...); | |
| * @param int $quality 75 | |
| * @return none | |
| */ | |
| function display($type = null, $quality = 75) | |
| { | |
| header('Content-type: image/' . $type); | |
| $cmd = $this->_postProcess($type, $quality); | |
| passthru($cmd); | |
| $this->command = array(); | |
| } | |
| /** | |
| * Destroy image handle | |
| * | |
| * @return none | |
| */ | |
| function free() | |
| { | |
| // there is no image handle here | |
| return true; | |
| } | |
| } // End class NetPBM | |
| ?> |