Initial code check in continued

src/controller/ControllerTreeCellRenderer.java

@@ -0,0 +1,106 @@
+/*******************************************************************************
+ *     SDR Trunk 
+ *     Copyright (C) 2014 Dennis Sheirer
+ * 
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * 
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ * 
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+package controller;
+
+import java.awt.Component;
+import java.awt.Image;
+import java.util.HashMap;
+
+import javax.swing.ImageIcon;
+import javax.swing.JTree;
+import javax.swing.tree.DefaultTreeCellRenderer;
+
+public class ControllerTreeCellRenderer extends DefaultTreeCellRenderer
+{
+    private static final long serialVersionUID = 1L;
+
+    public static final int MAX_ICON_HEIGHT = 16;
+    private HashMap<String,ImageIcon> mIcons = new HashMap<String,ImageIcon>();
+    
+    public ControllerTreeCellRenderer()
+    {
+    }
+
+    @Override
+    public Component getTreeCellRendererComponent( JTree tree,
+    		Object value, boolean selected, boolean expanded, boolean isLeaf,
+    		int row, boolean focused )
+    {
+    	Component c = super.getTreeCellRendererComponent( tree, value, selected, 
+    			expanded, isLeaf, row, focused );
+    	
+    	if( value instanceof BaseNode )
+    	{
+    		ImageIcon icon = getIcon( (BaseNode)value );
+    		
+    		if( icon != null )
+    		{
+    			if( icon.getIconHeight() > 16 )
+    			{
+    				
+    			}
+    			else
+    			{
+            		setIcon( icon );
+    			}
+    		}
+    	}
+    	
+    	return c;
+    }
+    
+    private ImageIcon getIcon( BaseNode node )
+    {
+    	ImageIcon icon = null;
+    	
+    	String filepath = node.getIconPath();
+    	
+    	if( filepath != null )
+    	{
+        	if( mIcons.containsKey( filepath ) )
+        	{
+        		icon = mIcons.get( filepath );
+        	}
+        	else
+        	{
+            	icon = new ImageIcon( filepath );
+            	
+            	if( icon.getIconHeight() > MAX_ICON_HEIGHT )
+            	{
+            		Image image = icon.getImage();  
+            		
+            		double scale = (double)icon.getIconHeight() / (double)MAX_ICON_HEIGHT;
+            		
+            		int scaledWidth = (int)( (double)icon.getIconWidth() / scale );
+            		
+            		Image scaledImage = image.getScaledInstance( scaledWidth, 
+            				MAX_ICON_HEIGHT, java.awt.Image.SCALE_SMOOTH );  
+            		
+                	mIcons.put( filepath, new ImageIcon( scaledImage ) );
+            	}
+            	else
+            	{
+                	mIcons.put( filepath, icon );
+            	}
+            	
+        	}
+    	}
+    	
+    	return icon;
+    }
+}