<?php

/**

* Copyright 2014 Openstack Foundation

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

**/

/**

* Prevents creation of resized images if the uploaded file already

* fits the requested dimensions

*/

class BetterImage extends Image

{

public function SetWidth($width) {

if($width == $this->getWidth()){

return $this;

}

return parent::SetWidth($width);

}

public function SetHeight($height) {

if($height == $this->getHeight()){

return $this;

}

return parent::SetHeight($height);

}

public function SetSize($width, $height) {

if($width == $this->getWidth() && $height == $this->getHeight()){

return $this;

}

return parent::SetSize($width, $height);

}

public function SetRatioSize($width, $height) {

if($width == $this->getWidth() && $height == $this->getHeight()){

return $this;

}

return parent::SetRatioSize($width, $height);

}

public function getFormattedImage($format, $arg1 = null, $arg2 = null) {

if($this->ID && $this->Filename && Director::fileExists($this->Filename)) {

$size = getimagesize(Director::baseFolder() . '/' . $this->getField('Filename'));

$preserveOriginal = false;

switch(strtolower($format)){

case 'croppedimage':

$preserveOriginal = ($arg1 == $size[0] && $arg2 == $size[1]);

break;

}

if($preserveOriginal){

return $this;

} else {

return parent::getFormattedImage($format, $arg1, $arg2);

}

}

}

}