/home/edulekha/studygroup.edulekha.com/ow_libraries/wideimage/Operation/RoundCorners.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
**/
/**
* ApplyMask operation class
*
* @package Internal/Operations
*/
class WideImage_Operation_RoundCorners
{
/**
* @param WideImage_Image $image
* @param int $radius
* @param int $color
* @param int $smoothness
* @return WideImage_Image
*/
function execute($image, $radius, $color, $smoothness, $corners)
{
if ($smoothness < 1)
$sample_ratio = 1;
elseif ($smoothness > 16)
$sample_ratio = 16;
else
$sample_ratio = $smoothness;
$corner = WideImage::createTrueColorImage($radius * $sample_ratio, $radius * $sample_ratio);
if ($color === null)
{
imagepalettecopy($corner->getHandle(), $image->getHandle());
$bg_color = $corner->allocateColor(0, 0, 0);
$corner->fill(0, 0, $bg_color);
$fg_color = $corner->allocateColor(255, 255, 255);
$corner->getCanvas()->filledEllipse($radius * $sample_ratio, $radius * $sample_ratio, $radius * 2 * $sample_ratio, $radius * 2 * $sample_ratio, $fg_color);
$corner = $corner->resize($radius, $radius);
$result = $image->asTrueColor();
$tc = $result->getTransparentColor();
if ($tc == -1)
{
$tc = $result->allocateColorAlpha(255, 255, 255, 127);
imagecolortransparent($result->getHandle(), $tc);
$result->setTransparentColor($tc);
}
if ($corners & WideImage::SIDE_TOP_LEFT || $corners & WideImage::SIDE_LEFT || $corners & WideImage::SIDE_TOP)
$result = $result->applyMask($corner, -1, -1);
$corner = $corner->rotate(90);
if ($corners & WideImage::SIDE_TOP_RIGHT || $corners & WideImage::SIDE_TOP || $corners & WideImage::SIDE_RIGHT)
$result = $result->applyMask($corner, $result->getWidth() - $corner->getWidth() + 1, -1, 100);
$corner = $corner->rotate(90);
if ($corners & WideImage::SIDE_BOTTOM_RIGHT || $corners & WideImage::SIDE_RIGHT || $corners & WideImage::SIDE_BOTTOM)
$result = $result->applyMask($corner, $result->getWidth() - $corner->getWidth() + 1, $result->getHeight() - $corner->getHeight() + 1, 100);
$corner = $corner->rotate(90);
if ($corners & WideImage::SIDE_BOTTOM_LEFT || $corners & WideImage::SIDE_LEFT || $corners & WideImage::SIDE_BOTTOM)
$result = $result->applyMask($corner, -1, $result->getHeight() - $corner->getHeight() + 1, 100);
return $result;
}
else
{
$bg_color = $color;
$corner->fill(0, 0, $bg_color);
$fg_color = $corner->allocateColorAlpha(127, 127, 127, 127);
$corner->getCanvas()->filledEllipse($radius * $sample_ratio, $radius * $sample_ratio, $radius * 2 * $sample_ratio, $radius * 2 * $sample_ratio, $fg_color);
$corner = $corner->resize($radius, $radius);
$result = $image->copy();
if ($corners & WideImage::SIDE_TOP_LEFT || $corners & WideImage::SIDE_LEFT || $corners & WideImage::SIDE_TOP)
$result = $result->merge($corner, -1, -1, 100);
$corner = $corner->rotate(90);
if ($corners & WideImage::SIDE_TOP_RIGHT || $corners & WideImage::SIDE_TOP || $corners & WideImage::SIDE_RIGHT)
$result = $result->merge($corner, $result->getWidth() - $corner->getWidth() + 1, -1, 100);
$corner = $corner->rotate(90);
if ($corners & WideImage::SIDE_BOTTOM_RIGHT || $corners & WideImage::SIDE_RIGHT || $corners & WideImage::SIDE_BOTTOM)
$result = $result->merge($corner, $result->getWidth() - $corner->getWidth() + 1, $result->getHeight() - $corner->getHeight() + 1, 100);
$corner = $corner->rotate(90);
if ($corners & WideImage::SIDE_BOTTOM_LEFT || $corners & WideImage::SIDE_LEFT || $corners & WideImage::SIDE_BOTTOM)
$result = $result->merge($corner, -1, $result->getHeight() - $corner->getHeight() + 1, 100);
return $result;
}
}
}