Author: stunami
Date: 2010-03-20 12:50:22 +0100 (Sat, 20 Mar 2010)
New Revision: 28631
Added:
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageAlphaMaskGD.class.php
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageRoundedCornersGD.class.php
Log:
Adding the two transforms sfImageTransformExtraPlugin
Added:
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageAlphaMaskGD.class.php
===================================================================
---
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageAlphaMaskGD.class.php
(rev 0)
+++
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageAlphaMaskGD.class.php
2010-03-20 11:50:22 UTC (rev 28631)
@@ -0,0 +1,122 @@
+<?php
+/**
+ * This file is part of the sfImageTransformExtraPlugin package.
+ * (c) 2010 Christian Schaefer <[email protected]>>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @package sfImageTransformExtraPlugin
+ * @author Christian Schaefer <[email protected]>
+ * @version SVN: $Id: sfRawFileCache.class.php 63 2010-03-09 04:34:28Z
caefer $
+ */
+
+/**
+ * Image transformation to apply a second image as an alpha mask to the first
image
+ *
+ * @package sfImageTransformExtraPlugin
+ * @subpackage transforms
+ * @author Christian Schaefer <[email protected]>
+ */
+class sfImageAlphaMaskGD extends sfImageTransformAbstract
+{
+ public function __construct($mask, $color = false)
+ {
+ $this->mask = $mask;
+ $this->color = $color;
+ }
+
+ protected function transform(sfImage $image)
+ {
+ $this->image = $image;
+ $this->mimeType = $image->getMIMEType();
+ $resource = $image->getAdapter()->getHolder();
+
+ switch ($this->mimeType)
+ {
+ case 'image/png':
+ $this->transformAlpha($resource);
+ break;
+ case 'image/gif':
+ case 'image/jpg':
+ default:
+ $this->transformDefault($resource);
+ }
+
+ return $image;
+ }
+
+ private function transformAlpha($resource)
+ {
+ $w = imagesx($resource);
+ $h = imagesy($resource);
+
+ $mask = $this->mask->getAdapter()->getHolder();
+ $canvas = imagecreatetruecolor($w, $h);
+
+ $color_background = imagecolorallocate($canvas, 0, 0, 0);
+ imagefilledrectangle($canvas, 0, 0, $w, $h, $color_background);
+ imagealphablending($canvas, false);
+ imagesavealpha($canvas, true);
+
+ for ($x = 0;$x < $w;$x++)
+ {
+ for ($y = 0;$y < $h;$y++)
+ {
+ $RealPixel = @imagecolorsforindex($resource, @imagecolorat($resource,
$x, $y));
+ $MaskPixel = @imagecolorsforindex($mask, @imagecolorat($mask, $x, $y));
+ $MaskAlpha = 127 - (floor($MaskPixel['red'] / 2) * (1 -
($RealPixel['alpha'] / 127)));
+
+ if (false === $this->color)
+ {
+ $newcolor = imagecolorallocatealpha($canvas, $RealPixel['red'],
$RealPixel['green'], $RealPixel['blue'], intval($MaskAlpha));
+ }
+ else
+ {
+ $newcolorPixel = sscanf($this->color, '#%2x%2x%2x');
+ $newcolorPixel[0] = ($newcolorPixel[0] * $MaskAlpha +
$RealPixel['red'] * (127 - $MaskAlpha)) / 127;
+ $newcolorPixel[1] = ($newcolorPixel[1] * $MaskAlpha +
$RealPixel['green'] * (127 - $MaskAlpha)) / 127;
+ $newcolorPixel[2] = ($newcolorPixel[2] * $MaskAlpha +
$RealPixel['blue'] * (127 - $MaskAlpha)) / 127;
+ $newcolor = imagecolorallocate($canvas, $newcolorPixel[0],
$newcolorPixel[1], $newcolorPixel[2]);
+ }
+ imagesetpixel($canvas, $x, $y, $newcolor);
+ }
+ }
+ imagealphablending($resource, false);
+ imagesavealpha($resource, true);
+ imagecopy($resource, $canvas, 0, 0, 0, 0, $w, $h);
+
+ imagedestroy($mask);
+ imagedestroy($canvas);
+ }
+
+ /**
+ * Callback function to extend/alter parameters as given in your
thumbnailing.yml.
+ *
+ * This callback adds the resources path to a mask image
+ *
+ * @param sfImage $sourceImage The original image
+ * @param array $parameters Configured parameters for this transformation
+ * @return array $parameters Extended/altered parameters
+ */
+ public static function prepareParameters($sourceImage, $parameters)
+ {
+ if (!array_key_exists('mask', $parameters))
+ {
+ return $parameters;
+ }
+
+ $user_resources_dir = sfConfig::get('sf_data_dir') . '/resources';
+ $plugin_paths = ProjectConfiguration::getActive()->getAllPluginPaths();
+ $plugin_resources_dir =
$plugin_paths['sfImageTransformExtraPlugin'].'/data/example-resources';
+ if (file_exists($user_resources_dir . '/' . $parameters['mask']))
+ {
+ $parameters['mask'] = new sfImage($user_resources_dir . '/' .
$parameters['mask']);
+ }
+ else if (file_exists($plugin_resources_dir . '/' . $parameters['mask']))
+ {
+ $parameters['mask'] = new sfImage($plugin_resources_dir . '/' .
$parameters['mask']);
+ }
+ return $parameters;
+ }
+}
Added:
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageRoundedCornersGD.class.php
===================================================================
---
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageRoundedCornersGD.class.php
(rev 0)
+++
plugins/sfImageTransformPlugin/trunk/lib/transforms/GD/sfImageRoundedCornersGD.class.php
2010-03-20 11:50:22 UTC (rev 28631)
@@ -0,0 +1,172 @@
+<?php
+/**
+ * This file is part of the sfImageTransformExtraPlugin package.
+ * (c) 2010 Christian Schaefer <[email protected]>>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @package sfImageTransformExtraPlugin
+ * @author Christian Schaefer <[email protected]>
+ * @version SVN: $Id: sfRawFileCache.class.php 63 2010-03-09 04:34:28Z
caefer $
+ */
+
+/**
+ * Image transformation to apply rounded corners to the image
+ *
+ * @package sfImageTransformExtraPlugin
+ * @subpackage transforms
+ * @author Christian Schaefer <[email protected]>
+ */
+class sfImageRoundedCornersGD extends sfImageTransformAbstract
+{
+ public function __construct($radius, $color = false)
+ {
+ $this->radius = $radius;
+ $this->color = $color;
+ }
+
+ protected function transform(sfImage $image)
+ {
+ $this->image = $image;
+ $this->mimeType = $image->getMIMEType();
+ $resource = $image->getAdapter()->getHolder();
+
+ switch ($this->mimeType)
+ {
+ case 'image/png':
+ $this->transformAlpha($resource);
+ break;
+ case 'image/gif':
+ case 'image/jpg':
+ default:
+ $this->transformDefault($resource);
+ }
+
+ return $image;
+ }
+
+ private function transformAlpha($resource)
+ {
+ $w = imagesx($resource);
+ $h = imagesy($resource);
+
+ $mask = $this->getMask($w, $h);
+ $canvas = imagecreatetruecolor($w, $h);
+
+ $color_background = imagecolorallocate($canvas, 0, 0, 0);
+ imagefilledrectangle($canvas, 0, 0, $w, $h, $color_background);
+ imagealphablending($canvas, false);
+ imagesavealpha($canvas, true);
+
+ for ($x = 0;$x < $w;$x++)
+ {
+ for ($y = 0;$y < $h;$y++)
+ {
+ $RealPixel = @imagecolorsforindex($resource, @imagecolorat($resource,
$x, $y));
+ $MaskPixel = @imagecolorsforindex($mask, @imagecolorat($mask, $x, $y));
+ $MaskAlpha = 127 - (floor($MaskPixel['red'] / 2) * (1 -
($RealPixel['alpha'] / 127)));
+
+ if (false === $this->color)
+ {
+ $newcolor = imagecolorallocatealpha($canvas, $RealPixel['red'],
$RealPixel['green'], $RealPixel['blue'], intval($MaskAlpha));
+ }
+ else
+ {
+ $newcolorPixel = sscanf($this->color, '#%2x%2x%2x');
+ $newcolorPixel[0] = ($newcolorPixel[0] * $MaskAlpha +
$RealPixel['red'] * (127 - $MaskAlpha)) / 127;
+ $newcolorPixel[1] = ($newcolorPixel[1] * $MaskAlpha +
$RealPixel['green'] * (127 - $MaskAlpha)) / 127;
+ $newcolorPixel[2] = ($newcolorPixel[2] * $MaskAlpha +
$RealPixel['blue'] * (127 - $MaskAlpha)) / 127;
+ $newcolor = imagecolorallocate($canvas, $newcolorPixel[0],
$newcolorPixel[1], $newcolorPixel[2]);
+ }
+ imagesetpixel($canvas, $x, $y, $newcolor);
+ }
+ }
+ imagealphablending($resource, false);
+ imagesavealpha($resource, true);
+ imagecopy($resource, $canvas, 0, 0, 0, 0, $w, $h);
+
+ imagedestroy($mask);
+ imagedestroy($canvas);
+ }
+
+ private function transformDefault($resource)
+ {
+ $w = imagesx($resource);
+ $h = imagesy($resource);
+
+ imagealphablending($resource, true);
+ $resource_transparent = imagecolorallocate($resource, 0, 0, 0);
+ imagecolortransparent($resource, $resource_transparent);
+ //$resource_transparent = $this->getTransparentColor($resource);
+ $mask = $this->getMask($w, $h);
+ // Copy $mask over the top of $resource maintaining the Alpha transparency
+ imagecopymerge($resource, $mask, 0, 0, 0, 0, $w, $h, 100);
+ }
+
+ private function getMask($w, $h)
+ {
+ // Create a mask png image of the area you want in the circle/ellipse (a
‘magicpink’ image with a black shape on it, with black set to the colour of
alpha transparency) - $mask
+ $mask = imagecreatetruecolor($w, $h);
+ imagealphablending($mask, true);
+ // Set the masking colours
+ if (false === $this->color||'image/png' == $this->mimeType)
+ {
+ $mask_black = imagecolorallocate($mask, 0, 0, 0);
+ }
+ else
+ {
+ $colorPixel = sscanf($this->color, '#%2x%2x%2x');
+ $mask_black = imagecolorallocate($mask, $colorPixel[0], $colorPixel[1],
$colorPixel[2]);
+ }
+ $mask_transparent = imagecolorallocate($mask, 255, 255, 255);
+ imagecolortransparent($mask, $mask_transparent);
+ imagefill($mask, 0, 0, $mask_black);
+ // Draw the rounded rectangle for the mask
+ $this->imagefillroundedrect($mask, 0, 0, $w, $h, $this->radius,
$mask_transparent);
+ return $mask;
+ }
+
+ private function imagefillroundedrect($im, $x, $y, $cx, $cy, $rad, $col)
+ {
+ // Draw the middle cross shape of the rectangle
+ imagefilledrectangle($im, $x, $y + $rad, $cx, $cy - $rad, $col);
+ imagefilledrectangle($im, $x + $rad, $y, $cx - $rad, $cy, $col);
+
+ $dia = $rad * 2;
+ // Now fill in the rounded corners
+ imagefilledellipse($im, $x + $rad, $y + $rad, $rad * 2, $dia, $col);
+ imagefilledellipse($im, $x + $rad, $cy - $rad, $rad * 2, $dia, $col);
+ imagefilledellipse($im, $cx - $rad, $cy - $rad, $rad * 2, $dia, $col);
+ imagefilledellipse($im, $cx - $rad, $y + $rad, $rad * 2, $dia, $col);
+ }
+
+ /**
+ * Callback function to extend/alter parameters as given in your
thumbnailing.yml.
+ *
+ * This callback adds the resources path to an overlay image
+ *
+ * @param sfImage $sourceImage The original image
+ * @param array $parameters Configured parameters for this transformation
+ * @return array $parameters Extended/altered parameters
+ */
+ public static function prepareParameters($sourceImage, $parameters)
+ {
+ if (!array_key_exists('overlay', $parameters))
+ {
+ return $parameters;
+ }
+
+ $user_resources_dir = sfConfig::get('sf_data_dir') . '/resources';
+ $plugin_resources_dir = sfConfig::get('sf_plugins_dir') .
'/sfImageTransformExtraPlugin/data/example-resources';
+ if (file_exists($user_resources_dir . '/' . $parameters['overlay']))
+ {
+ $parameters['overlay'] = new sfImage($user_resources_dir . '/' .
$parameters['overlay']);
+ }
+ else if (file_exists($plugin_resources_dir . '/' . $parameters['overlay']))
+ {
+ $parameters['overlay'] = new sfImage($plugin_resources_dir . '/' .
$parameters['overlay']);
+ }
+ return $parameters;
+ }
+}
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