<?php
/**
* SimpleImage
* @description Class to manipulate with images
* @version 1.0.0
* @copyright (c) 2013 Juraj Puchký - Devtech
* @license GPLv3
* @autor Juraj Puchký - Devtech <sjurajpuchky@seznam.cz>
*
*/
class SimpleImage {
public static function load($filename) {
$image_info = getimagesize ( $filename );
$image_type = $image_info [2];
$image = null;
try {
switch ($image_type) {
case IMAGETYPE_JPEG :
$image = imagecreatefromjpeg ( $filename );
break;
case IMAGETYPE_GIF :
$image = imagecreatefromgif ( $filename );
break;
case IMAGETYPE_PNG :
$image = imagecreatefrompng ( $filename );
break;
default :
return false;
}
} catch ( Exception $e ) {
error_log ( $e->getMessage () );
return false;
}
return $image;
}
public static function save($image, $filename, $image_type = IMAGETYPE_JPEG, $compression = 75, $permissions = null) {
try {
switch ($image_type) {
case IMAGETYPE_JPEG :
imagejpeg ( $image, $filename, $compression );
break;
case IMAGETYPE_GIF :
imagegif ( $image, $filename );
break;
case IMAGETYPE_PNG :
imagepng ( $image, $filename );
break;
default :
return false;
}
if ($permissions !== null) {
chmod ( $filename, $permissions );
}
} catch ( Exception $e ) {
error_log ( $e->getMessage () );
return false;
}
return true;
}
public static function getWidth($image) {
return imagesx ( $image );
}
public static function getHeight($image) {
return imagesy ( $image );
}
public static function resizeToHeight($image, $height) {
$ratio = $height / self::getHeight ( $image );
$width = self::getWidth ( $image ) * $ratio;
return self::resize ( $image, $width, $height );
}
public static function resizeToWidth($image, $width) {
$ratio = $width / self::getWidth ( $image );
$height = self::getheight ( $image ) * $ratio;
return self::resize ( $image, $width, $height );
}
public static function scale($image, $scale) {
$width = self::getWidth ( $image ) * $scale / 100;
$height = self::getheight ( $image ) * $scale / 100;
return self::resize ( $image, $width, $height );
}
public static function resize($image, $width, $height) {
$new_image = imagecreatetruecolor ( $width, $height );
imagecopyresampled ( $new_image, $image, 0, 0, 0, 0, $width, $height, self::getWidth ( $image ), self::getHeight ( $image ) );
return $new_image;
}
}
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