1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/2d/Helpers.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,35 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef MOZILLA_GFX_2D_HELPERS_H_
1.10 +#define MOZILLA_GFX_2D_HELPERS_H_
1.11 +
1.12 +#include "2D.h"
1.13 +
1.14 +namespace mozilla {
1.15 +namespace gfx {
1.16 +
1.17 +class AutoSaveTransform
1.18 +{
1.19 + public:
1.20 + AutoSaveTransform(DrawTarget *aTarget)
1.21 + : mDrawTarget(aTarget),
1.22 + mOldTransform(aTarget->GetTransform())
1.23 + {
1.24 + }
1.25 + ~AutoSaveTransform()
1.26 + {
1.27 + mDrawTarget->SetTransform(mOldTransform);
1.28 + }
1.29 +
1.30 + private:
1.31 + RefPtr<DrawTarget> mDrawTarget;
1.32 + Matrix mOldTransform;
1.33 +};
1.34 +
1.35 +} // namespace gfx
1.36 +} // namespace mozilla
1.37 +
1.38 +#endif // MOZILLA_GFX_2D_HELPERS_H_
