ui/base/gtk/scoped_region.cc

   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