Added thumbnailer functionality

Prince Mbekwa
1 parent f90adba9
Showing 6 changed files with 70 additions and 17 deletions
plugins/ktstandard/documentpreview/documentPreview.php
plugins/ktstandard/documentpreview/documentPreviewPlugin.php
plugins/ktstandard/documentpreview/resources/preview.js
plugins/thumbnails/templates/thumbnail_viewlet.smarty
plugins/thumbnails/thumbnails.php
plugins/thumbnails/thumbnailsPlugin.php
@@ -257,8 +257,8 @@ class DocumentPreview {
         $sId = $this->_IDocId;
         /* Create table */
-
-        $sInfo = "<table cellspacing='3px' cellpadding='3px'>
+ 		
+        $sInfo = "<div style='float:left;'><table cellspacing='3px' cellpadding='3px'>
             <tr><td>{$sFilenameLb}</td><td><b>{$sFilename}</b></td></tr>
             <tr><td>{$sMimeTypeLb}</td><td><b>{$sMimeType}</b></td></tr>
             <tr><td>{$sVersionLb}</td><td><b>{$iVersion}</b></td></tr>
@@ -276,8 +276,19 @@ class DocumentPreview {
             $sInfo .= "<tr><td>{$sCheckedLb}</td><td><b>{$sCheckedOutBy}</b></td></tr>";
         }
-            $sInfo .= "<tr><td>{$sIdLb}</td><td><b>{$sId}</b></td></tr>
-        </table>";
+        $sInfo .= "<tr><td>{$sIdLb}</td><td><b>{$sId}</b></td></tr>";        
+        $sInfo .= " </table></div>";
+        
+        // Check for existence of thumbnail plugin
+        if (KTPluginUtil::pluginIsActive('thumbnails.generator.processor.plugin')) {
+            // hook into thumbnail plugin to get display for thumbnail
+            include_once(KT_DIR . '/plugins/thumbnails/thumbnails.php');
+            $thumbnailer = new ThumbnailViewlet();
+            $thumbnailDisplay = $thumbnailer->display_viewlet($sId);
+            if ($thumbnailDisplay != '') {
+        		$sInfo .= "<div>$thumbnailDisplay</div>";
+        	}
+        }
         return $sInfo;
     }
@@ -68,14 +68,23 @@ class PreviewColumn extends AdvancedColumn {
         $sTitle = _kt('Property Preview');
         $sLoading = _kt('Loading...');
-
+        $width = 500;
+        
+		// Check for existence of thumbnail plugin
+        if (KTPluginUtil::pluginIsActive('thumbnails.generator.processor.plugin')) {
+            // hook into thumbnail plugin to get display for thumbnail
+            include_once(KT_DIR . '/plugins/thumbnails/thumbnails.php');
+            $thumbnailer = new ThumbnailViewlet();
+            $width += $thumbnailer->get_width($iDocumentId);
+        }
+        
         $link = '<a href = "#" class="ktAction ktPreview" id = "box_'.$iDocumentId.'" ';
         if($this->sActivation == 'mouse-over'){
-            $sJs = "javascript: this.t = setTimeout('showInfo(\'$iDocumentId\', \'$sUrl\', \'$sDir\', \'$sLoading\')', $iDelay);";
+            $sJs = "javascript: this.t = setTimeout('showInfo(\'$iDocumentId\', \'$sUrl\', \'$sDir\', \'$sLoading\', $width)', $iDelay);";
             $link .= 'onmouseover = "'.$sJs.'" onmouseout = "clearTimeout(this.t);">';
         }else{
-            $sJs = "javascript: showInfo('$iDocumentId', '$sUrl', '$sDir', '$sLoading');";
+            $sJs = "javascript: showInfo('$iDocumentId', '$sUrl', '$sDir', '$sLoading', $width);";
             $link .= 'onclick = "'.$sJs.'" title="'.$sTitle.'">';
         }
 /*
     Create the preview / info box using an ExtJS Dialog window
 */
-var showInfo = function(iDocId, sUrl, sDir, loading){
+var showInfo = function(iDocId, sUrl, sDir, loading, mwidth){
     // Create the info box container div
     createPanel();
@@ -14,7 +14,7 @@ var showInfo = function(iDocId, sUrl, sDir, loading){
             shadow: false,
             modal: true,
             plain: false,
-            width: 500,
+            width: mwidth,
             height: 360,
             minWidth: 300,
             minHeight: 250
+<div>
+	<div><img src="{$thumbnail}" height="200px"/></div>
+</div>
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@@ -131,34 +131,64 @@ class thumbnailGenerator extends BaseProcessor
                - check out ktcore/KTDocumentViewlets.php
                - viewlet class is below
 	    */
-
+		global $default;
 	    $pdfDir = $default->pdfDirectory;
         $pdfFile = $pdfDir .'/'. $this->document->iId.'.pdf';
+        $thumbnaildir = $pdfDir."/thumbnails";
+        $thumbnailfile = $thumbnaildir.'/'.$this->document->iId.'.jpg';
+        
+        //if thumbail dir does not exist, generate one
+        if (!file_exists($thumbnaildir)) {
+        	 mkdir($thumbnaildir, 0755);
+        }
-        // if a previous version of the pdf exists - delete it
+        // if there is no pdf that exists - hop out
         if(!file_exists($pdfFile)){
             global $default;
             $default->log->debug('Thumbnail Generator Plugin: PDF file does not exist, cannot generate a thumbnail');
             return false;
         }
-
+		// if a previous version of the thumbnail exists - delete it
+		if (file_exists($thumbnailfile)) {
+			@unlink($thumbnailfile);
+		}
         // do generation
-        return true;
+        if (extension_loaded('imagick')) {
+        	$result= shell_exec("convert -size 200x200 {$pdfFile}[0] -resize 200x200 $thumbnailfile");
+        	return true;
+        }else{
+        	$default->log->debug('Thumbnail Generator Plugin: Imagemagick not installed, cannot generate a thumbnail');
+            return false;
+        }
+        
     }
 }
-
 class ThumbnailViewlet extends KTDocumentViewlet {
     var $sName = 'thumbnail.viewlets';
-    function display_viewlet() {
+    public function display_viewlet($documentId) {
+    	global $default;
         $oKTTemplating =& KTTemplating::getSingleton();
         $oTemplate =& $oKTTemplating->loadTemplate('thumbnail_viewlet');
         if (is_null($oTemplate)) return '';
-
-        $oTemplate->setData(array());
+		$pdfDir = $default->pdfDirectory;
+		$thumbnailfile = $pdfDir . '/thumbnails/'.$documentId.'.jpg';
+		// check that file exists
+		if (!file_exists($thumbnailfile)) return '';
+        // NOTE this is to turn the config setting for the PDF directory into a proper URL and not a path
+		$thumbnailUrl = str_replace($default->varDirectory, 'var/', $thumbnailfile);
+        $oTemplate->setData(array('thumbnail' => $thumbnailUrl));
         return $oTemplate->render();
     }
+    
+    public function get_width($documentId){
+    	global $default;
+    	$pdfDir = $default->pdfDirectory;
+		$thumbnailfile = $pdfDir . '/thumbnails/'.$documentId.'.jpg';
+		$size = getimagesize($thumbnailfile);
+		return $size[0];
+    }
 }
 ?>
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