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Joomla - PHP watermark Script problem
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November 23rd, 2012, 04:11 PM
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Registered User
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Join Date: Nov 2012
Posts: 2
Time spent in forums: 24 m 21 sec
Reputation Power: 0
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Joomla - PHP watermark Script problem
Hi,
The attached script is from a plugin for Joomla, that overlays a watermark on an Image, Thumbnail & Avatar. It works, BUT it aligns the watermark (based on coordinates in input in the Joomla backend), from the TOP LEFT of the source image. I need it to align the watermark from the BOTTOM LEFT of the source image.
I am not much of a php expert, and maybe this is a simple change. I have tried a few things and wind up breaking the code. I have also asked the developer to make the changes for a fee with no luvk. I would love some help with this and AM willing to HIRE someone to do it if I need to.
I think, from my limited understanding, that changing this will affect the change on all of the images, the Image, Thumbnail & Avatar. That is fine.
Please help, this is driving me nuts!
I think this is the relevant line of code from line 355:
Code:
// Combine background image and watermark into a single output image
imagecopy($background, $watermark, $positionX, $positionY, 0, 0, $watermarkWidth, $watermarkHeight);
Code:
<?php
// No direct access
defined('_JEXEC') or die('Restricted access');
require_once JPATH_ROOT . DS . 'components' . DS . 'com_community' . DS . 'libraries' . DS . 'core.php';
require_once JPATH_ROOT . DS . 'components' . DS . 'com_community' . DS . 'helpers' . DS . 'image.php';
jimport('joomla.error.log');
if (!class_exists('PlgCommunityJsWatermark'))
{
/**
* PlgCommunityJsWatermark class.
*
* @package Extly.Plugins
* @subpackage jswatermark
* @since 1.0
*/
class PlgCommunityJsWatermark extends CApplications
{
public $name = "JsWatermark";
public $_name = 'jswatermark';
private $_path = '';
/**
* getConfiguration.
*
* @return array.
*
* @since 1.5
*/
public function getConfiguration()
{
static $configuration = null;
$params = new CParameter('');
if (is_null($configuration))
{
$plugin = & JPluginHelper::getPlugin('community', 'jswatermark');
$params = new CParameter($plugin->params);
$version = new JVersion;
$joomla = $version->getShortVersion();
$is_j15 = (substr($joomla, 0, 3) == '1.5');
$configuration = array(
'version' => '1.0',
'on_photo_create' => $params->get('on_photo_create', 1),
'on_profile_avatar_update' => $params->get('on_profile_avatar_update', 1),
'photo_watermark' => $params->get('photo_watermark', null),
'thumb_watermark' => $params->get('thumb_watermark', null),
'profile_watermark' => $params->get('profile_watermark', null),
'photo_watermarkx' => intval($params->get('photo_watermarkx', 0)),
'photo_watermarky' => intval($params->get('photo_watermarky', 0)),
'thumb_watermarkx' => intval($params->get('thumb_watermarkx', 0)),
'thumb_watermarky' => intval($params->get('thumb_watermarky', 0)),
'profile_watermarkx' => intval($params->get('profile_watermarkx', 0)),
'profile_watermarky' => intval($params->get('profile_watermarky', 0)),
'original' => intval($params->get('original', 0)),
'photo_width' => intval($params->get('photo_width', 0)),
'photo_height' => intval($params->get('photo_height', 0)),
'debug' => intval($params->get('debug', 0)),
);
$configuration['is_j15'] = $is_j15;
}
return $configuration;
}
/**
* onPhotoCreate.
*
* @param object $photo A photo
*
* @return nil.
*
* @since 1.5
*/
public function onPhotoCreate($photo)
{
$config = $this->getConfiguration();
if ($config['debug'])
{
$log = &JLog::getInstance('watermaks-for-js.log.' . date("Y-m-d") . '.php');
$log->addEntry(array('comment' => 'configuration ' . print_r($configuration, true)));
$log->addEntry(array('comment' => 'onPhotoCreate ' . print_r($photo, true)));
}
if ($config['on_photo_create'])
{
if ($config['debug'])
{
$log->addEntry(array('comment' => 'on_photo_create enabled.'));
}
$watermarkImage = $config['photo_watermark'];
if ($watermarkImage)
{
if ($config['debug'])
{
$log->addEntry(array('comment' => 'photo_watermark enabled.'));
}
if ($config['is_j15'])
{
$watermarkPath = JPATH_ROOT . DS . 'images' . DS . CString::str_ireplace('/', DS, $watermarkImage);
} else
{
$watermarkPath = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $watermarkImage);
}
$storageImage = $photo->image;
$storageImage = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $storageImage);
$originalImage = $photo->original;
$originalImage = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $originalImage);
$dstImage = $storageImage;
if ($config['original'])
{
$srcImage = $originalImage;
$configjs = CFactory::getConfig();
$displayWidth = $configjs->getInt('photodisplaysize');
$storageImageInfo = getimagesize($srcImage);
$fileType = $storageImageInfo['mime'];
$displayWidth = ($storageImageInfo[0] < $displayWidth) ? $storageImageInfo[0] : $displayWidth;
CImageHelper::resizeProportional($srcImage, $dstImage, $fileType, $displayWidth);
$srcImage = $dstImage;
}
else
{
$srcImage = $storageImage;
}
if (!JFile::exists($srcImage))
{
if ($config['debug'])
{
$log->addEntry(array('comment' => "photo_watermark File not found: {$srcImage}"));
}
return;
}
$storageImageInfo = getimagesize($srcImage);
if ($srcImage)
{
$fileType = $storageImageInfo['mime'];
$x = $config['photo_watermarkx'];
$y = $config['photo_watermarky'];
if ($config['debug'])
{
$log->addEntry(array('comment' => "photo_watermark addWatermark ({$srcImage}, {$dstImage}, {$fileType}, {$watermarkPath}, {$x}, {$y})."));
}
plgCommunityJsWatermark::addWatermark($srcImage, $dstImage, $fileType, $watermarkPath, $x, $y);
}
else
{
$msg = print_r($storageImageInfo, true);
$log->addEntry(array('comment' => "photo_watermark getimagesize problem: {$msg}"));
}
}
$watermarkImage = $config['thumb_watermark'];
if ($watermarkImage)
{
if ($config['debug'])
{
$log->addEntry(array('comment' => 'thumb_watermark enabled.'));
}
if ($config['is_j15'])
{
$watermarkPath = JPATH_ROOT . DS . 'images' . DS . CString::str_ireplace('/', DS, $watermarkImage);
} else
{
$watermarkPath = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $watermarkImage);
}
$storageImage = $photo->thumbnail;
$storageImage = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $storageImage);
if (!JFile::exists($storageImage))
{
if ($config['debug'])
{
$log->addEntry(array('comment' => "thumb_watermark File not found: {$storageImage}"));
}
return;
}
$storageImageInfo = getimagesize($storageImage);
if ($storageImageInfo)
{
$fileType = $storageImageInfo['mime'];
$x = $config['thumb_watermarkx'];
$y = $config['thumb_watermarky'];
if ($config['debug'])
{
$log->addEntry(array('comment' => "thumb_watermark addWatermark ({$storageImage}, {$storageImage}, {$fileType}, {$watermarkPath}, {$x}, {$y})."));
}
plgCommunityJsWatermark::addWatermark($storageImage, $storageImage, $fileType, $watermarkPath, $x, $y);
}
else
{
$msg = print_r($storageImageInfo, true);
$log->addEntry(array('comment' => "thumb_watermark getimagesize problem: {$msg}"));
}
}
}
}
/**
* onProfileAvatarUpdate
*
* @param integer $userid Param
* @param string $oldFile Param
* @param string $photo Param
*
* @return nil
*
* @since 1.5
*/
public function onProfileAvatarUpdate($userid, $oldFile, $photo)
{
$config = $this->getConfiguration();
if ($config['debug'])
{
$log = &JLog::getInstance('watermaks-for-js.log.' . date("Y-m-d") . '.php');
$log->addEntry(array('comment' => 'configuration ' . print_r($configuration, true)));
$log->addEntry(array('comment' => "onProfileAvatarUpdate ({$userid}, {$oldFile}, {$photo})"));
}
if ($config['on_profile_avatar_update'])
{
if ($config['debug'])
{
$log->addEntry(array('comment' => 'on_profile_avatar_update enabled.'));
}
$watermarkImage = $config['profile_watermark'];
if ($watermarkImage)
{
if ($config['debug'])
{
$log->addEntry(array('comment' => 'profile_watermark enabled.'));
}
if ($config['is_j15'])
{
$watermarkPath = JPATH_ROOT . DS . 'images' . DS . CString::str_ireplace('/', DS, $watermarkImage);
} else
{
$watermarkPath = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $watermarkImage);
}
$storageImage = $photo;
$storageImage = JPATH_ROOT . DS . CString::str_ireplace('/', DS, $storageImage);
if (!JFile::exists($storageImage))
{
if ($config['debug'])
{
$log->addEntry(array('comment' => "profile_watermark File not found: {$storageImage}"));
}
return;
}
$storageImageInfo = getimagesize($storageImage);
if ($storageImageInfo)
{
$fileType = $storageImageInfo['mime'];
$x = $config['profile_watermarkx'];
$y = $config['profile_watermarky'];
if ($config['debug'])
{
$log->addEntry(array('comment' => "profile_watermark addWatermark ({$storageImage}, {$storageImage}, {$fileType}, {$watermarkPath}, {$x}, {$y})."));
}
plgCommunityJsWatermark::addWatermark($storageImage, $storageImage, $fileType, $watermarkPath, $x, $y);
}
else
{
$msg = print_r($storageImageInfo, true);
$log->addEntry(array('comment' => "profile_watermark getimagesize problem: {$msg}"));
}
}
}
}
/**
* addWatermark
*
* @param integer $backgroundImagePath Param
* @param string $destinationPath Param
* @param string $destinationType Param
* @param string $watermarkImagePath Param
* @param string $positionX Param
* @param string $positionY Param
* @param string $deleteBackgroundImage Param
*
* @return nil
*
* @since 1.5
*/
static public function addWatermark(
$backgroundImagePath, $destinationPath, $destinationType, $watermarkImagePath, $positionX = 0, $positionY = 0, $deleteBackgroundImage = true)
{
// Set output quality
$config = CFactory::getConfig();
$imgQuality = $config->get('output_image_quality');
$pngQuality = ($imgQuality - 100) / 11.111111;
$pngQuality = round(abs($pngQuality));
$watermarkInfo = getimagesize($watermarkImagePath);
if (!$watermarkInfo)
{
echo "ERROR: watermarkImagePath {$watermarkImagePath} error - getimagesize!";
return;
}
$background = CImageHelper::open($backgroundImagePath, $destinationType);
$watermark = CImageHelper::open($watermarkImagePath, $watermarkInfo['mime']);
list( $backgroundWidth, $backgroundHeight ) = getimagesize($backgroundImagePath);
// Try to make the watermark image transparent
imagecolortransparent($watermark, imagecolorat($watermark, 0, 0));
// Get overlay image width and hight
$watermarkWidth = imagesx($watermark);
$watermarkHeight = imagesy($watermark);
// Combine background image and watermark into a single output image
imagecopy($background, $watermark, $positionX, $positionY, 0, 0, $watermarkWidth, $watermarkHeight);
// Output
ob_start();
// Test if type is png
if ($destinationType == 'image/png' || $destinationType == 'image/x-png')
{
imagepng($background, null, $pngQuality);
} elseif ($destinationType == 'image/gif')
{
imagegif($background);
} else
{
imagejpeg($background, null, $imgQuality);
}
$output = ob_get_contents();
ob_end_clean();
// Delete old image
if (JFile::exists($backgroundImagePath) && $deleteBackgroundImage)
{
JFile::delete($backgroundImagePath);
}
// Free any memory from the existing image resources
imagedestroy($background);
imagedestroy($watermark);
return JFile::write($destinationPath, $output);
}
}
}
Please Help, this is driving me nuts!
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November 23rd, 2012, 07:39 PM
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JavaScript is not spelt java
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Join Date: Feb 2011
Location: Landan, England
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I would experiment:
PHP Code:
imagecopy($background, $watermark, $positionX, $positionY, 0, $positionY - $watermarkHeight, $watermarkWidth, $watermarkHeight);
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November 26th, 2012, 07:18 PM
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Registered User
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Join Date: Nov 2012
Posts: 2
Time spent in forums: 24 m 21 sec
Reputation Power: 0
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Well, trying a few things with no luck:
Code:
imagecopy($background, $watermark, $positionX, $positionY, 0, imagesy($displayHeight), $watermarkWidth, $watermarkHeight);
Code:
imagecopy($background, $watermark, $positionX, $positionY, 0, $positionY - imagesy($displayHeight), $watermarkWidth, $watermarkHeight);
Code:
imagecopy($background, $watermark, $positionX, $positionY, 0, $positionY - $srcHeight, $watermarkWidth, $watermarkHeight);
Any ideas anyone? Thanks for any help here!
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