Allow label sausages to override icon painting.

Allow RadialMenuItems to add an additional icon to the sausage.


git-svn-id: https://samskivert.googlecode.com/svn/trunk@1627 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/samskivert/src/java/com/samskivert/swing/LabelSausage.java

@@ -111,9 +111,7 @@ public abstract class LabelSausage
         drawBase(gfx, x, y);
 
         // render our icon if we've got one
-        if (_icon != null) {
-            _icon.paintIcon(null, gfx, x + _xoff, y + _yoff);
-        }
+        drawIcon(gfx, x, y, cliData);
 
         drawLabel(gfx, x, y);
         drawBorder(gfx, x, y);
@@ -134,6 +132,16 @@ public abstract class LabelSausage
             x, y, _size.width - 1, _size.height - 1, _dia, _dia);
     }
 
+    /**
+     * Draws the icon, if applicable.
+     */
+    protected void drawIcon (Graphics2D gfx, int x, int y, Object cliData)
+    {
+        if (_icon != null) {
+            _icon.paintIcon(null, gfx, x + _xoff, y + _yoff);
+        }
+    }
+
     /**
      * Draws the label.
      */

projects/samskivert/src/java/com/samskivert/swing/RadialMenu.java

@@ -93,6 +93,18 @@ public class RadialMenu
         public boolean isEnabled (RadialMenu menu, RadialMenuItem item);
     }
 
+    /**
+     * An additional interface that can be implemented by the predicate
+     * to display extra status.
+     */
+    public static interface IconPredicate extends Predicate
+    {
+        /**
+         * Return an additional predicate that should be drawn.
+         */
+        public Icon getIcon (RadialMenu menu, RadialMenuItem item);
+    }
+
     /**
      * Constructs a radial menu.
      */

projects/samskivert/src/java/com/samskivert/swing/RadialMenuItem.java

@@ -105,4 +105,17 @@ public class RadialMenuItem extends RadialLabelSausage
     {
         paint(gfx, x, y, menu);
     }
+
+    // documentation inherited
+    protected void drawIcon (Graphics2D gfx, int x, int y, Object cliData)
+    {
+        super.drawIcon(gfx, x, y, cliData);
+        if (predicate instanceof RadialMenu.IconPredicate) {
+            Icon icon = ((RadialMenu.IconPredicate) predicate).getIcon(
+               (RadialMenu) cliData, this);
+            if (icon != null) {
+                icon.paintIcon(null, gfx, x + _xoff, y + _yoff);
+            }
+        }
+    }
 }