fix tree renderer for collection trees

core/src/main/groovy/com/muwire/core/collections/PathTree.groovy

@@ -7,6 +7,7 @@ class PathTree {
     final PathNode root
     PathTree(String root) {
         this.root = new PathNode(root, null)
+        this.root.setUserObject(root)
         keyToNode.put(this.root.key(), this.root)
     }
 

gui/griffon-app/views/com/muwire/gui/CollectionTabView.groovy

@@ -98,6 +98,7 @@ class CollectionTabView {
                         borderLayout()
                         scrollPane(constraints : BorderLayout.CENTER, border : etchedBorder()) {
                             itemsTree = new JTree(model.fileTreeModel)
+                            itemsTree.setCellRenderer(new PathTreeRenderer())
                             tree(rowHeight : rowHeight, rootVisible : true, expandsSelectedPaths : true, itemsTree)
                         }
                     }

gui/griffon-app/views/com/muwire/gui/CollectionWizardView.groovy

@@ -83,7 +83,7 @@ class CollectionWizardView {
                 label(text : trans("COLLECTION_REVIEW_TITLE"), constraints : BorderLayout.NORTH)
                 scrollPane(constraints : BorderLayout.CENTER) {
                     jTree = new JTree(model.tree)
-//                    jtree.setCellRenderer(new SharedTreeRenderer()) // TODO: create new renderer
+                    jTree.setCellRenderer(new PathTreeRenderer())
                     tree(id : "preview-tree", rowHeight : rowHeight, rootVisible : true, expandsSelectedPaths : true, jTree)
                 }
                 panel(constraints : BorderLayout.SOUTH) {

gui/src/main/groovy/com/muwire/gui/PathTreeRenderer.groovy

@@ -0,0 +1,38 @@
+package com.muwire.gui
+
+import java.awt.Component
+
+import javax.swing.ImageIcon
+import javax.swing.JTree
+import javax.swing.tree.DefaultTreeCellRenderer
+
+import com.muwire.core.collections.FileCollectionItem
+
+class PathTreeRenderer extends DefaultTreeCellRenderer {
+
+    private final ImageIcon commentIcon
+    
+    public PathTreeRenderer() {
+        commentIcon = new ImageIcon((URL) PathTreeRenderer.class.getResource("/comment.png"))
+    }
+    
+    public Component getTreeCellRendererComponent(JTree tree, Object value,
+        boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus) {
+        def userObject = value.getUserObject()
+        
+        def defaultRenderer = super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus) 
+        if (userObject == null || userObject instanceof String) {
+            return defaultRenderer
+        }
+        
+        FileCollectionItem item = (FileCollectionItem) userObject
+        String fileName = item.pathElements.get(item.pathElements.size() - 1)
+        setText(fileName)
+        setEnabled(true)
+        if (item.comment != "" && item.comment != null) {
+            setIcon(commentIcon)
+        }
+            
+        this
+    }
+}