Allow subclasses to customize drawing of bitmap (using shaders, etc).

Change-Id: I22294a19e6dd2247cc9679470b7b69089ba17228

1 files changed, 9 insertions, 1 deletions

diff --git a/src/com/android/bitmap/drawable/BasicBitmapDrawable.java b/src/com/android/bitmap/drawable/BasicBitmapDrawable.java
index 53ab38d..f9d39a3 100644
--- a/src/com/android/bitmap/drawable/BasicBitmapDrawable.java
+++ b/src/com/android/bitmap/drawable/BasicBitmapDrawable.java
@@ -281,11 +281,19 @@ public class BasicBitmapDrawable extends Drawable implements DecodeCallback,
             // Rotate the canvas.
             canvas.save();
             canvas.rotate(orientation, bounds.centerX(), bounds.centerY());
-            canvas.drawBitmap(mBitmap.bmp, sRect, rotatedBounds, mPaint);
+            drawBitmap(canvas, rotatedBounds);
             canvas.restore();
         }
     }
 
+    /**
+     * Override this method to customize how to draw the bitmap to the canvas for the given bounds.
+     * The bitmap to be drawn can be found at {@link #getBitmap()}.
+     */
+    protected void drawBitmap(final Canvas canvas, final Rect bounds) {
+        canvas.drawBitmap(mBitmap.bmp, sRect, bounds, mPaint);
+    }
+
     @Override
     public void setAlpha(int alpha) {
         final int old = mPaint.getAlpha();