adding an url() method and HTML options to thumbnail()

readme.md

@@ -67,6 +67,14 @@ In the view, generate the thumbnail :
 In the `$options` array you can use any valid phpThumb() option. For detailed
 information on the available options, check [phpThumb()'s readme](http://phpthumb.sourceforge.net/demo/docs/phpthumb.readme.txt)
 
+You can also pass HTML options :
+
+    echo $this->PhpThumb->thumbnail(
+        'img/image.jpg',
+        array('w' => 100, 'h' => 100, 'zc' => 1),
+        array('alt' => "Alternative text")
+    );
+
 ### MeioUpload'ed image
 
     // for a Post with an image field containing my-post.jpg
@@ -80,3 +88,21 @@ This will also work :
     echo $this->PhpThumb->thumbnail('uploads/post/image/.$post['Post']['image'], array(
         'w' => 100, 'h' => 100, 'zc' => 1
     ));
+
+### Image url
+
+To get only the image url, use the `url` method :
+
+    echo $this->PhpThumb->url('img/image.jpg', array(
+        'w' => 100, 'h' => 100, 'zc' => 1
+    ));
+
+It's useful for the various Javascript gallery script, like Lightbox / Thickbox / Colorbox etc. :
+
+    echo $this->Html->link(
+        $this->PhpThumb->thumbnail(
+            'img/image.jpeg', array('w' => 100, 'h' => 100, 'zc' => 1)
+        ),
+        $this->PhpThumb->url('img/image.jpeg', array('w' => 640, 'h' => 640)),
+        array('escape' => false)
+    );

views/helpers/php_thumb.php

@@ -122,8 +122,8 @@ public function generate($options = array())    {
 
         return $this->get_thumb_data();
     }
-    
-    function thumbnail($image, $options) {
+
+    function generateThumbnail($image, $options) {
         $thumbs_path = Configure::read('PhpThumb.thumbs_path');
         if (empty($thumbs_path)) {
             return false;
@@ -155,10 +155,20 @@ function thumbnail($image, $options) {
             $options['src'] = WWW_ROOT . $image;
         }
         $finalOptions = array_merge($options, $pathOptions);
-        $thumbnail = $this->generate($finalOptions);
-        return $this->image($thumbnail['src'], array(
-            'width' => $thumbnail['w'], 'height' => $thumbnail['h'])
-        );
+        return $this->generate($finalOptions);
+    }
+
+    function url($image, $options) {
+        $thumbnail = $this->generateThumbnail($image, $options);
+        return $thumbnail['src'];
+    }
+
+    function thumbnail($image, $options, $htmlOptions = array()) {
+        $thumbnail = $this->generateThumbnail($image, $options);
+        return $this->image($thumbnail['src'], array_merge(
+            array('width' => $thumbnail['w'], 'height' => $thumbnail['h']),
+            $htmlOptions
+        ));
     }
 }
 ?>