Render debug footprints even if we don't render objects.

It's really handy when you've got objects that hide others to be able to
turn off the objects but still get footprints.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@919 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/miso/client/SceneObject.java

@@ -112,19 +112,27 @@ public class SceneObject
      */
     public void paint (Graphics2D gfx)
     {
-        if (_hideObjects.getValue()) {
-            return;
-        }
-
         // if we're rendering footprints, paint that
         boolean footpaint = _fprintDebug.getValue();
         if (footpaint) {
             gfx.setColor(Color.black);
             gfx.draw(_footprint);
+
+            if (_hideObjects.getValue()) {
+                // We're in footprints but no objects mode, so let's also fill it in so we can
+                // see things better/tell if we have overlapping ones
+                Composite ocomp = gfx.getComposite();
+                gfx.setComposite(ALPHA_WARN);
+                gfx.fill(_footprint);
+                gfx.setComposite(ocomp);
+            }
         }
 
-        // if we have a warning, render an alpha'd red rectangle over our
-        // bounds
+        if (_hideObjects.getValue()) {
+            return;
+        }
+
+        // if we have a warning, render an alpha'd red rectangle over our bounds
         if (_warning) {
             Composite ocomp = gfx.getComposite();
             gfx.setComposite(ALPHA_WARN);