RegionBuilder.h

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 *  * License, v. 2.0. If a copy of the MPL was not distributed with this
 *  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef RegionBuilder_h__
#define RegionBuilder_h__

#include <nsTArray.h>

template <typename RegionType>
class RegionBuilder {
 public:
  typedef typename RegionType::RectType RectType;

  RegionBuilder() = default;

  void OrWith(const RectType& aRect) {
    pixman_box32_t box = {aRect.X(), aRect.Y(), aRect.XMost(), aRect.YMost()};
    mRects.AppendElement(box);
  }

  RegionType ToRegion() const { return RegionType(mRects); }

 private:
  nsTArray<pixman_box32_t> mRects;
};

#endif  // RegionBuilder_h__