From 6b156c9e10c6b832c8ab4c21edf6eac5ea301b98 Mon Sep 17 00:00:00 2001
From: Cash Costello <cash.costello@gmail.com>
Date: Sun, 13 Sep 2009 23:56:59 +0000
Subject: tweaked GD watermarking and added a better imagick watermarking

---
 languages/en.php  |  2 +-
 lib/watermark.php | 93 ++++++++++---------------------------------------------
 2 files changed, 18 insertions(+), 77 deletions(-)

diff --git a/languages/en.php b/languages/en.php
index f3abfc27e..036884799 100644
--- a/languages/en.php
+++ b/languages/en.php
@@ -62,7 +62,7 @@
 			'tidypics:settings:grp_perm_override' => "Allow group members full access to group albums",
 			'tidypics:settings:maxfilesize' => "Maximum image size in megabytes (MB):",
 			'tidypics:settings:quota' => "User/Group Quota (MB) - 0 equals no quota",
-			'tidypics:settings:watermark' => "Enter text to appear in the watermark - ImageMagick Cmdline must be selected for the image library",
+			'tidypics:settings:watermark' => "Enter text to appear in the watermark - not for production sites yet",
 			'tidypics:settings:im_path' => "Enter the path to your ImageMagick commands (with trailing slash)",
 			'tidypics:settings:img_river_view' => "How many entries in river for each batch of uploaded images",
 			'tidypics:settings:album_river_view' => "Show the album cover or a set of photos for new album",
diff --git a/lib/watermark.php b/lib/watermark.php
index 160dd48b4..13eb598a0 100644
--- a/lib/watermark.php
+++ b/lib/watermark.php
@@ -45,103 +45,44 @@ function tp_gd_watermark($image) {
 	$top = $image_height - $line_height - 10;
 	$left = round(($image_width - $line_width) / 2);
 	
-	$textcolor = imagecolorallocate($image, 50, 50, 50);
+	imagealphablending($image, true);
+	$textcolor = imagecolorallocatealpha($image, 50, 50, 50, 50);
 	imagestring($image, $font, $left, $top, $watermark_text, $textcolor);
 }
 
 function tp_imagick_watermark($filename) {
+
 	$watermark_text = get_plugin_setting('watermark_text', 'tidypics');
 	if (!$watermark_text)
 		return;
 	
-
-	
 	$owner = get_loggedin_user();
 
 	$watermark_text = tp_process_watermark_text($watermark_text, $owner);
 	
-	$ext = ".png";
-	
-	$user_stamp_base = tp_get_watermark_filename($watermark_text, $owner);
+    $img = new Imagick($filename);
 
-	$watermark  = array();  
-	$image = new Imagick($filename);
-	$draw = new ImagickDraw();  
-	$draw->setGravity(Imagick::GRAVITY_CENTER);  
-	# $draw->setFont($font);  
-	# $draw->setFontSize($font_size);  
-	$textColor = new ImagickPixel("black");  
-	$draw->setFillColor($textColor);  
-	
-	$im = new imagick();  
-	$properties = $im->queryFontMetrics($draw, $watermark_text);  
-	$watermark['w'] = intval($properties["textWidth"] + 5);  
-	$watermark['h'] = intval($properties["textHeight"] + 5);  
-	$im->newImage($watermark['w'],$watermark['h'],new ImagickPixel("transparent"));  
-	$im->setImageFormat("jpg");  
-	$im->annotateImage($draw, 0, 0, 0, $watermark_text);  
-	$watermark = $im->clone();  
-	$watermark->setImageBackgroundColor($textColor);  
-	$watermark->shadowImage(80, 2, 2, 2);  
-	$watermark->compositeImage($im, Imagick::COMPOSITE_OVER, 0, 0);  
-	$image->compositeImage($watermark, Imagick::COMPOSITE_OVER, 0, 0);  
-
-	if ($image->writeImage($filename) != true) {
-		$image->destroy();
-		return false;
-	}
-	
-	$image->destroy();
-/*
-	if ( !file_exists( $user_stamp_base . $ext )) { //create the watermark if it doesn't exist
+    $img->readImage($image);
 
-	$commands = array();
-		$commands[] = $im_path . 'convert -size 300x50 xc:grey30 -pointsize 20 -gravity center -draw "fill grey70  text 0,0  \''. $watermark_text . '\'" "'. $user_stamp_base . '_fgnd' . $ext . '"';
-		$commands[] = $im_path . 'convert -size 300x50 xc:black -pointsize 20 -gravity center -draw "fill white  text  1,1  \''. $watermark_text . '\' text  0,0  \''. $watermark_text . '\' fill black  text -1,-1 \''. $watermark_text . '\'" +matte ' . $user_stamp_base . '_mask' . $ext;
-		$commands[] = $im_path . 'composite -compose CopyOpacity  "' . $user_stamp_base . "_mask" . $ext . '" "' . $user_stamp_base . '_fgnd' . $ext . '" "' . $user_stamp_base . $ext . '"';
-		$commands[] = $im_path . 'mogrify -trim +repage "' . $user_stamp_base . $ext . '"';
-		$commands[] = 'rm "' . $user_stamp_base . '_mask' . $ext . '"';
-		$commands[] = 'rm "' . $user_stamp_base . '_fgnd' . $ext . '"';
-		
-		foreach( $commands as $command ) {
-			exec( $command );
-		}
+    $draw = new ImagickDraw();
 
-	}
-*/
-/*
-	try {
-		$img = new Imagick($filename);
-	} catch (ImagickException $e) {
-		return false;
-	}
-	
-	try {
-		$mask = new Imagick($user_stamp_base . $ext);
-	} catch (ImagickException $e) {
-		return false;
-	}
-	
-	$image_width = $img->getImageWidth();
-	$image_height = $img->getImageHeight();
-	$mask_width = $mask->getImageWidth();
-	$mask_height = $mask->getImageHeight();
-	
-	// matching -gravity south -geometry +0+10
-	$top = $image_height - $mask_height - 10;
-	$left = round(($image_width - $mask_width) / 2);
-	
-	$img->compositeImage($mask, Imagick::COMPOSITE_DEFAULT, $left, $top);
-	
-	$mask->destroy();
-	
+    //$draw->setFont("");
+
+    $draw->setFontSize(28);
+
+    $draw->setFillOpacity(0.5);
+
+    $draw->setGravity(Imagick::GRAVITY_SOUTH);
+
+    $img->annotateImage($draw, 0, 0, 0, $watermark_text);
+    	
 	if ($img->writeImage($filename) != true) {
 		$img->destroy();
 		return false;
 	}
 	
 	$img->destroy();
-*/	
+	
 	return true;
 }
 
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