Disable clipping where unnecessary

This change prevents the renderer from using a stencil buffer
to render rotated CellLayouts.

Change-Id: I0414f59ed45502323ab588820ceb4a5e3ec17140

src/com/android/launcher2/CellLayout.java

@@ -181,6 +181,11 @@ public class CellLayout extends ViewGroup {
         // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
         // the user where a dragged item will land when dropped.
         setWillNotDraw(false);
+        // CellLayout guarantees its children are not laid out outside of its bounds,
+        // child clipping is thus unnecessary and disabling it offers better performance
+        // when we rotate the whole layout
+        setClipChildren(false);
+        setClipToPadding(false);
         mLauncher = (Launcher) context;
 
         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CellLayout, defStyle, 0);

src/com/android/launcher2/Workspace.java

@@ -409,6 +409,8 @@ public class Workspace extends SmoothPagedView
         LauncherApplication app = (LauncherApplication)context.getApplicationContext();
         mIconCache = app.getIconCache();
         setWillNotDraw(false);
+        setClipChildren(false);
+        setClipToPadding(false);
         setChildrenDrawnWithCacheEnabled(true);
 
         final Resources res = getResources();