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 #include "pixman.h"
12 
13 template <typename RegionType>
14 class RegionBuilder {
15  public:
16   typedef typename RegionType::RectType RectType;
17 
18   RegionBuilder() = default;
19 
OrWith(const RectType & aRect)20   void OrWith(const RectType& aRect) {
21     pixman_box32_t box = {aRect.X(), aRect.Y(), aRect.XMost(), aRect.YMost()};
22     mRects.AppendElement(box);
23   }
24 
ToRegion()25   RegionType ToRegion() const { return RegionType(mRects); }
26 
27  private:
28   nsTArray<pixman_box32_t> mRects;
29 };
30 
31 #endif  // RegionBuilder_h__
32