Ticket #11725: media.patch

media.php

@@ -695 +695 @@
                 'columns'    => 3,
                 'size'       => 'thumbnail',
                 'include'    => '',
-                'exclude'    => ''
+                'exclude'    => '',
+                'count'     => 'all',
+                'start'     => '1'
         ), $attr));
 
         $id = intval($id);
@@ -755 +757 @@
                 <!-- see gallery_shortcode() in wp-includes/media.php -->
                 <div id='$selector' class='gallery galleryid-{$id}'>");
 
+        $gallery_count = 0;
+        $count_all = count( $attachments );
+        if ( !$start || $start < 1 || $start > $count_all )
+                $start = 1;
+        else
+                $start = absint( $start );
+        if ( !$count || $count < 1 || $count > $count_all || $count == "all" )
+                $start_last = $count_all;
+        else
+                $start_last = $start + absint( $count ) - 1;
+
         $i = 0;
         foreach ( $attachments as $id => $attachment ) {
+                
+                $gallery_count++;
+                if ( $gallery_count < $start || $gallery_count > $start_last )
+                        continue;
+
                 $link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false);
 
                 $output .= "<{$itemtag} class='gallery-item'>";