1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  *  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  *  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef RegionBuilder_h__
8 #define RegionBuilder_h__
9 
10 #include <nsTArray.h>
11 
12 template <typename RegionType>
13 class RegionBuilder {
14  public:
15   typedef typename RegionType::RectType RectType;
16 
RegionBuilder()17   RegionBuilder() {}
18 
OrWith(const RectType & aRect)19   void OrWith(const RectType& aRect) {
20     pixman_box32_t box = {aRect.X(), aRect.Y(), aRect.XMost(), aRect.YMost()};
21     mRects.AppendElement(box);
22   }
23 
ToRegion()24   RegionType ToRegion() const { return RegionType(mRects); }
25 
26  private:
27   nsTArray<pixman_box32_t> mRects;
28 };
29 
30 #endif  // RegionBuilder_h__
31