/lib/external/SimpleImage/SimpleImage.php
PHP | 143 lines | 104 code | 16 blank | 23 comment | 21 complexity | aa2f06942ec6b2f029e8dcb3f68ed453 MD5 | raw file
Possible License(s): GPL-3.0, MPL-2.0-no-copyleft-exception, LGPL-2.1, BSD-3-Clause, MIT
- <?php
- /*
- * File: SimpleImage.php
- * Author: Simon Jarvis
- * Copyright: 2006 Simon Jarvis
- * Date: 08/11/06
- * Link: http://www.white-hat-web-design.co.uk/articles/php-image-resizing.php
- *
- * 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:
- * http://www.gnu.org/licenses/gpl.html
- *
- */
- class SimpleImage
- {
- var $image;
- var $image_type;
- function load($filename)
- {
- $image_info = getimagesize($filename);
- $this->image_type = $image_info[2];
- if ($this->image_type == IMAGETYPE_JPEG)
- {
- $this->image = imagecreatefromjpeg($filename);
- }
- elseif ($this->image_type == IMAGETYPE_GIF)
- {
- $this->image = imagecreatefromgif($filename);
- }
- elseif ($this->image_type == IMAGETYPE_PNG)
- {
- $this->image = imagecreatefrompng($filename);
- }
- }
- function save($filename, $image_type = IMAGETYPE_JPEG, $compression = 75, $permissions = null)
- {
- // do this or they'll all go to jpeg
- $image_type = $this->image_type;
- if ($image_type == IMAGETYPE_JPEG)
- {
- imagejpeg($this->image, $filename, $compression);
- }
- elseif ($image_type == IMAGETYPE_GIF)
- {
- imagegif($this->image, $filename);
- }
- elseif ($image_type == IMAGETYPE_PNG)
- {
- // need this for transparent png to work
- imagealphablending($this->image, false);
- imagesavealpha($this->image, true);
- imagepng($this->image, $filename);
- }
- if ($permissions != null)
- {
- chmod($filename, $permissions);
- }
- }
- function output($image_type = IMAGETYPE_JPEG)
- {
- if ($image_type == IMAGETYPE_JPEG)
- {
- imagejpeg($this->image);
- }
- elseif ($image_type == IMAGETYPE_GIF)
- {
- imagegif($this->image);
- }
- elseif ($image_type == IMAGETYPE_PNG)
- {
- imagepng($this->image);
- }
- }
- function getWidth()
- {
- return imagesx($this->image);
- }
- function getHeight()
- {
- return imagesy($this->image);
- }
- function resizeToHeight($height)
- {
- $ratio = $height / $this->getHeight();
- $width = $this->getWidth() * $ratio;
- $this->resize($width, $height);
- }
- function resizeToWidth($width)
- {
- $ratio = $width / $this->getWidth();
- $height = $this->getheight() * $ratio;
- $this->resize($width, $height);
- }
- function scale($scale)
- {
- $width = $this->getWidth() * $scale / 100;
- $height = $this->getheight() * $scale / 100;
- $this->resize($width, $height);
- }
- function resize($width,$height,$forcesize='n') {
- /* optional. if file is smaller, do not resize. */
- if ($forcesize == 'n') {
- if ($width > $this->getWidth() && $height > $this->getHeight()){
- $width = $this->getWidth();
- $height = $this->getHeight();
- }
- }
- $new_image = imagecreatetruecolor($width, $height);
- /* Check if this image is PNG or GIF, then set if Transparent*/
- if(($this->image_type == IMAGETYPE_GIF) || ($this->image_type==IMAGETYPE_PNG)){
- imagealphablending($new_image, false);
- imagesavealpha($new_image,true);
- $transparent = imagecolorallocatealpha($new_image, 255, 255, 255, 127);
- imagefilledrectangle($new_image, 0, 0, $width, $height, $transparent);
- }
- imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
- $this->image = $new_image;
- }
- }
- ?>