forked from joomla/Members-Manager
79 lines
2.1 KiB
PHP
79 lines
2.1 KiB
PHP
<?php
|
|
/**
|
|
* @author Gasper Kozak
|
|
* @copyright 2007-2011
|
|
|
|
This file is part of WideImage.
|
|
|
|
WideImage 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.
|
|
|
|
WideImage 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 WideImage; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
* @package Internal/Operations
|
|
**/
|
|
|
|
/**
|
|
* Merge operation class
|
|
*
|
|
* @package Internal/Operations
|
|
*/
|
|
class WideImage_Operation_Merge
|
|
{
|
|
/**
|
|
* Returns a merged image
|
|
*
|
|
* @param WideImage_Image $base
|
|
* @param WideImage_Image $overlay
|
|
* @param smart_coordinate $left
|
|
* @param smart_coordinate $top
|
|
* @param numeric $pct
|
|
* @return WideImage_Image
|
|
*/
|
|
function execute($base, $overlay, $left, $top, $pct)
|
|
{
|
|
$x = WideImage_Coordinate::fix($left, $base->getWidth(), $overlay->getWidth());
|
|
$y = WideImage_Coordinate::fix($top, $base->getHeight(), $overlay->getHeight());
|
|
|
|
$result = $base->asTrueColor();
|
|
$result->alphaBlending(true);
|
|
$result->saveAlpha(true);
|
|
|
|
if ($pct <= 0)
|
|
return $result;
|
|
|
|
if ($pct < 100)
|
|
{
|
|
if (!imagecopymerge(
|
|
$result->getHandle(),
|
|
$overlay->getHandle(),
|
|
$x, $y, 0, 0,
|
|
$overlay->getWidth(),
|
|
$overlay->getHeight(),
|
|
$pct))
|
|
throw new WideImage_GDFunctionResultException("imagecopymerge() returned false");
|
|
}
|
|
else
|
|
{
|
|
if (!imagecopy(
|
|
$result->getHandle(),
|
|
$overlay->getHandle(),
|
|
$x, $y, 0, 0,
|
|
$overlay->getWidth(),
|
|
$overlay->getHeight()))
|
|
throw new WideImage_GDFunctionResultException("imagecopy() returned false");
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
}
|