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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ui/base/gtk/scoped_region.h"
      6 
      7 #include <gdk/gdk.h>
      8 
      9 namespace ui {
     10 
     11 ScopedRegion::ScopedRegion() : region_(NULL) {}
     12 
     13 ScopedRegion::ScopedRegion(GdkRegion* region) : region_(region) {}
     14 
     15 ScopedRegion::~ScopedRegion() {
     16   Close();
     17 }
     18 
     19 void ScopedRegion::Set(GdkRegion* region) {
     20   Close();
     21   region_ = region;
     22 }
     23 
     24 GdkRegion* ScopedRegion::Get() {
     25   return region_;
     26 }
     27 
     28 GdkRegion* ScopedRegion::release() {
     29   GdkRegion* region = region_;
     30   region_ = NULL;
     31   return region;
     32 }
     33 
     34 void ScopedRegion::Close() {
     35   if (region_) {
     36     gdk_region_destroy(region_);
     37     region_ = NULL;
     38   }
     39 }
     40 
     41 }  // namespace ui
     42