65 lines
1.8 KiB
PHP
65 lines
1.8 KiB
PHP
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<?php
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/**
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* @author Gasper Kozak
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* @copyright 2007-2011
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This file is part of WideImage.
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WideImage is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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WideImage is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with WideImage; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* @package Internal/Operations
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**/
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/**
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* Rotate operation class
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*
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* @package Internal/Operations
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*/
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class WideImage_Operation_Rotate
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{
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/**
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* Returns rotated image
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*
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* @param WideImage_Image $image
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* @param numeric $angle
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* @param int $bgColor
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* @param bool $ignoreTransparent
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* @return WideImage_Image
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*/
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function execute($image, $angle, $bgColor, $ignoreTransparent)
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{
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$angle = -floatval($angle);
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if ($angle < 0)
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$angle = 360 + $angle;
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$angle = $angle % 360;
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if ($angle == 0)
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return $image->copy();
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$image = $image->asTrueColor();
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if ($bgColor === null)
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{
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$bgColor = $image->getTransparentColor();
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if ($bgColor == -1)
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{
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$bgColor = $image->allocateColorAlpha(255, 255, 255, 127);
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imagecolortransparent($image->getHandle(), $bgColor);
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}
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}
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return new WideImage_TrueColorImage(imagerotate($image->getHandle(), $angle, $bgColor, $ignoreTransparent));
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}
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}
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