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<?php /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* # ***** BEGIN LICENSE BLOCK ***** # This file is part of Plume Framework, a simple PHP Application Framework. # Copyright (C) 2001-2007 Loic d'Anterroches and contributors. # # Plume Framework is free software; you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # Plume Framework 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 Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # ***** END LICENSE BLOCK ***** */ /** * Image object to wrap some simple convertion operations. * * Complex operations should be performed with the gd functions directly. * */ class Pluf_Image { protected $dir = '' ; /**< Path to the thumbnail folder. */ protected $filename = '' ; /**< Filename of the last created thumbnail. */ public $source = '' ; /**< Full path to the source file. */ /** * Init the image class. */ public function __construct( $source ) { $this ->source = $source ; } /** * Convert the image as a png file. * * @param string Output file. */ public function asPng( $output ) { $this ->saveAs( $output , 'png' ); } /** * Convert the image as a given type. * * Types are 'gif', 'jpg' or 'png' * * @param string Output file. * @param string Type. */ public function saveAs( $output , $type = 'png' ) { $types = array ( 'gif' => '1' , 'jpg' => '2' , 'png' => '3' ); $output_func = array ( 'gif' => 'imagegif' , 'jpg' => 'imagejpeg' , 'png' => 'imagepng' ); if (! file_exists ( $this ->source)) { throw new Exception(sprintf( 'Image source "%s" unavailable.' , $this ->source)); } if (( $size = @ getimagesize ( $this ->source)) === false) { throw new Exception(sprintf( 'Image source "%s" is not an image.' , $this ->source)); } $source_type = $size [2]; if ( $source_type == $types [ $type ]) { // Simply the source to the output. if (false === @ copy ( $this ->source, $output )) { throw new Exception(sprintf( 'Failed to copy %s to %s.' , $this ->source, $output )); } return ; } if ( $source_type == '1' ) { $function = 'imagecreatefromgif' ; } elseif ( $source_type == '2' ) { $function = 'imagecreatefromjpeg' ; } elseif ( $source_type == '3' ) { $function = 'imagecreatefrompng' ; } else { throw new Exception( 'The source image is not of a recognized type.' ); } if (( $img = @ $function ( $this ->source)) == false) { throw new Exception( 'Cannot read the source image.' ); } if (!@ $output_func [ $type ]( $img , $output )) { throw new Exception( 'Cannot write the output image.' ); } } } |