FastBitmapDrawable can draw an icon badge (notification count)

- Added BadgeInfo to contain data to be shown in a badge
  (currently just notification count).
- Added BadgeRenderer in DeviceProfile to contain things
  relevant to drawing the badge, such as size and Paint's.
- Added IconPalette to compute colors for the badge based
  on a dominant color (will also be used for notifications)
- FastBitmapDrawable uses these classes to draw the badge.

Bug: 32410600
Change-Id: I6595a4879943357590f7d20c22594691a573ecaf

src/com/android/launcher3/DeviceProfile.java

@@ -31,7 +31,7 @@ import android.view.ViewGroup.LayoutParams;
 import android.widget.FrameLayout;
 
 import com.android.launcher3.CellLayout.ContainerType;
-import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.badge.BadgeRenderer;
 
 import java.util.ArrayList;
 
@@ -136,6 +136,9 @@ public class DeviceProfile {
     // Listeners
     private ArrayList<LauncherLayoutChangeListener> mListeners = new ArrayList<>();
 
+    // Icon badges
+    public BadgeRenderer mBadgeRenderer;
+
     public DeviceProfile(Context context, InvariantDeviceProfile inv,
             Point minSize, Point maxSize,
             int width, int height, boolean isLandscape) {
@@ -193,6 +196,10 @@ public class DeviceProfile {
         hotseatBarBottomPaddingPx = 0;
         hotseatLandGutterPx = res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_gutter_width);
 
+        int badgeSize = res.getDimensionPixelSize(R.dimen.badge_size);
+        int badgeTextSize = res.getDimensionPixelSize(R.dimen.badge_text_size);
+        mBadgeRenderer = new BadgeRenderer(badgeSize, badgeTextSize);
+
         // Determine sizes.
         widthPx = width;
         heightPx = height;