drawRegion() cleanups

src/core/SkCanvas.cpp

 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkCanvasPriv.h"
@@ skipping 1957 matching lines @@
 // These need to stop being virtual -- clients need to override the onDraw... versions
 
 void SkCanvas::drawPaint(const SkPaint& paint) {
     this->onDrawPaint(paint);
 }
 
 void SkCanvas::drawRect(const SkRect& r, const SkPaint& paint) {
     this->onDrawRect(r, paint);
 }
 
+void SkCanvas::drawRegion(const SkRegion& region, const SkPaint& paint) {
+    if (region.isEmpty()) {
+        return;
+    }
+
+    if (region.isRect()) {
+        return this->drawIRect(region.getBounds(), paint);
+    }
+
+    this->onDrawRegion(region, paint);
+}
+
 void SkCanvas::drawOval(const SkRect& r, const SkPaint& paint) {
     this->onDrawOval(r, paint);
 }
 
 void SkCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) {
     this->onDrawRRect(rrect, paint);
 }
 
 void SkCanvas::drawPoints(PointMode mode, size_t count, const SkPoint pts[], const SkPaint& paint) {
     this->onDrawPoints(mode, count, pts, paint);
@@ skipping 1447 matching lines @@
 
 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
     fCanvas->restoreToCount(fSaveCount);
 }
 
 #ifdef SK_SUPPORT_LEGACY_NEW_SURFACE_API
 SkSurface* SkCanvas::newSurface(const SkImageInfo& info, const SkSurfaceProps* props) {
     return this->makeSurface(info, props).release();
 }
 #endif