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<?php
/**
* GD Reflection Lib Plugin Definition File
*
* This file contains the plugin definition for the GD Reflection Lib for PHP Thumb
*
* PHP Version 5 with GD 2.0+
* PhpThumb : PHP Thumb Library <http://phpthumb.gxdlabs.com>
* Copyright (c) 2009, Ian Selby/Gen X Design
*
* Author(s): Ian Selby <ian@gen-x-design.com>
*
* Licensed under the MIT License
* Redistributions of files must retain the above copyright notice.
*
* @author Ian Selby <ian@gen-x-design.com>
* @copyright Copyright (c) 2009 Gen X Design
* @link http://phpthumb.gxdlabs.com
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
* @version 3.0
* @package PhpThumb
* @filesource
*/
/**
* GD Reflection Lib Plugin
*
* This plugin allows you to create those fun Apple(tm)-style reflections in your images
*
* @package PhpThumb
* @subpackage Plugins
*/
class GdReflectionLib
{
/**
* Instance of GdThumb passed to this class
*
* @var GdThumb
*/
protected $parentInstance;
protected $currentDimensions;
protected $workingImage;
protected $newImage;
protected $options;
public function createReflection ($percent, $reflection, $white, $border, $borderColor, &$that)
{
// bring stuff from the parent class into this class...
$this->parentInstance = $that;
$this->currentDimensions = $this->parentInstance->getCurrentDimensions();
$this->workingImage = $this->parentInstance->getWorkingImage();
$this->newImage = $this->parentInstance->getOldImage();
$this->options = $this->parentInstance->getOptions();
$width = $this->currentDimensions['width'];
$height = $this->currentDimensions['height'];
$reflectionHeight = intval($height * ($reflection / 100));
$newHeight = $height + $reflectionHeight;
$reflectedPart = $height * ($percent / 100);
$this->workingImage = imagecreatetruecolor($width, $newHeight);
imagealphablending($this->workingImage, true);
$colorToPaint = imagecolorallocatealpha($this->workingImage,255,255,255,0);
imagefilledrectangle($this->workingImage,0,0,$width,$newHeight,$colorToPaint);
imagecopyresampled
(
$this->workingImage,
$this->newImage,
0,
0,
0,
$reflectedPart,
$width,
$reflectionHeight,
$width,
($height - $reflectedPart)
);
$this->imageFlipVertical();
imagecopy($this->workingImage, $this->newImage, 0, 0, 0, 0, $width, $height);
imagealphablending($this->workingImage, true);
for ($i = 0; $i < $reflectionHeight; $i++)
{
$colorToPaint = imagecolorallocatealpha($this->workingImage, 255, 255, 255, ($i/$reflectionHeight*-1+1)*$white);
imagefilledrectangle($this->workingImage, 0, $height + $i, $width, $height + $i, $colorToPaint);
}
if($border == true)
{
$rgb = $this->hex2rgb($borderColor, false);
$colorToPaint = imagecolorallocate($this->workingImage, $rgb[0], $rgb[1], $rgb[2]);
imageline($this->workingImage, 0, 0, $width, 0, $colorToPaint); //top line
imageline($this->workingImage, 0, $height, $width, $height, $colorToPaint); //bottom line
imageline($this->workingImage, 0, 0, 0, $height, $colorToPaint); //left line
imageline($this->workingImage, $width-1, 0, $width-1, $height, $colorToPaint); //right line
}
if ($this->parentInstance->getFormat() == 'PNG')
{
$colorTransparent = imagecolorallocatealpha
(
$this->workingImage,
$this->options['alphaMaskColor'][0],
$this->options['alphaMaskColor'][1],
$this->options['alphaMaskColor'][2],
0
);
imagefill($this->workingImage, 0, 0, $colorTransparent);
imagesavealpha($this->workingImage, true);
}
$this->parentInstance->setOldImage($this->workingImage);
$this->currentDimensions['width'] = $width;
$this->currentDimensions['height'] = $newHeight;
$this->parentInstance->setCurrentDimensions($this->currentDimensions);
return $that;
}
/**
* Flips the image vertically
*
*/
protected function imageFlipVertical ()
{
$x_i = imagesx($this->workingImage);
$y_i = imagesy($this->workingImage);
for ($x = 0; $x < $x_i; $x++)
{
for ($y = 0; $y < $y_i; $y++)
{
imagecopy($this->workingImage, $this->workingImage, $x, $y_i - $y - 1, $x, $y, 1, 1);
}
}
}
/**
* Converts a hex color to rgb tuples
*
* @return mixed
* @param string $hex
* @param bool $asString
*/
protected function hex2rgb ($hex, $asString = false)
{
// strip off any leading #
if (0 === strpos($hex, '#'))
{
$hex = substr($hex, 1);
}
elseif (0 === strpos($hex, '&H'))
{
$hex = substr($hex, 2);
}
// break into hex 3-tuple
$cutpoint = ceil(strlen($hex) / 2)-1;
$rgb = explode(':', wordwrap($hex, $cutpoint, ':', $cutpoint), 3);
// convert each tuple to decimal
$rgb[0] = (isset($rgb[0]) ? hexdec($rgb[0]) : 0);
$rgb[1] = (isset($rgb[1]) ? hexdec($rgb[1]) : 0);
$rgb[2] = (isset($rgb[2]) ? hexdec($rgb[2]) : 0);
return ($asString ? "{$rgb[0]} {$rgb[1]} {$rgb[2]}" : $rgb);
}
}
$pt = PhpThumb::getInstance();
$pt->registerPlugin('GdReflectionLib', 'gd');
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