Fix bug #7621927 Radio button/TextView drawable regression in 4.2

- as we remove the 9 patch padding trick, we need also to do the correct
positioning of the radio / checkbox / star during draw

Change-Id: I02b67bef9c0f2dc1c0c65361de14ab20ce9b881d

Author: Fabrice Di Meglio

core/java/android/widget/CompoundButton.java

@@ -248,6 +248,15 @@ public int getCompoundPaddingRight() {
         return padding;
     }
 
+    /**
+     * @hide
+     */
+    @Override
+    public int getHorizontalOffsetForDrawables() {
+        final Drawable buttonDrawable = mButtonDrawable;
+        return (buttonDrawable != null) ? buttonDrawable.getIntrinsicWidth() : 0;
+    }
+
     @Override
     protected void onDraw(Canvas canvas) {
         super.onDraw(canvas);

core/java/android/widget/TextView.java

@@ -4734,6 +4734,13 @@ private Path getUpdatedHighlightPath() {
         return highlight;
     }
 
+    /**
+     * @hide
+     */
+    public int getHorizontalOffsetForDrawables() {
+        return 0;
+    }
+
     @Override
     protected void onDraw(Canvas canvas) {
         restartMarqueeIfNeeded();
@@ -4751,6 +4758,10 @@ protected void onDraw(Canvas canvas) {
         final int left = mLeft;
         final int bottom = mBottom;
         final int top = mTop;
+        final boolean isLayoutRtl = isLayoutRtl();
+        final int offset = getHorizontalOffsetForDrawables();
+        final int leftOffset = isLayoutRtl ? 0 : offset;
+        final int rightOffset = isLayoutRtl ? offset : 0 ;
 
         final Drawables dr = mDrawables;
         if (dr != null) {
@@ -4766,7 +4777,7 @@ protected void onDraw(Canvas canvas) {
             // Make sure to update invalidateDrawable() when changing this code.
             if (dr.mDrawableLeft != null) {
                 canvas.save();
-                canvas.translate(scrollX + mPaddingLeft,
+                canvas.translate(scrollX + mPaddingLeft + leftOffset,
                                  scrollY + compoundPaddingTop +
                                  (vspace - dr.mDrawableHeightLeft) / 2);
                 dr.mDrawableLeft.draw(canvas);
@@ -4777,7 +4788,8 @@ protected void onDraw(Canvas canvas) {
             // Make sure to update invalidateDrawable() when changing this code.
             if (dr.mDrawableRight != null) {
                 canvas.save();
-                canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight,
+                canvas.translate(scrollX + right - left - mPaddingRight
+                        - dr.mDrawableSizeRight - rightOffset,
                          scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2);
                 dr.mDrawableRight.draw(canvas);
                 canvas.restore();
@@ -4862,8 +4874,6 @@ protected void onDraw(Canvas canvas) {
         }
         canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText);
 
-        final boolean isLayoutRtl = isLayoutRtl();
-
         final int layoutDirection = getLayoutDirection();
         final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
         if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&