widget/WidgetUtils.h
author James Willcox <snorp@snorp.net>
Wed, 05 Nov 2014 10:17:49 -0600
changeset 225935 51f45407f84333b84df311d0af2b5fab9a189fb6
parent 225617 167b548389d3ec57bf3866fcc61750a6dcfa10c1
child 236314 41c37790896e424e2743811d3d19be00068ce941
permissions -rw-r--r--
Bug 1014614 - Rename nsSurfaceTexture to AndroidSurfaceTexture r=jgilbert a=lsblakk

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=8 et :
 */
/* 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 mozilla_WidgetUtils_h
#define mozilla_WidgetUtils_h

#include "nsRect.h"
#include "mozilla/gfx/Matrix.h"

namespace mozilla {

// NB: these must match up with pseudo-enum in nsIScreen.idl.
enum ScreenRotation {
  ROTATION_0 = 0,
  ROTATION_90,
  ROTATION_180,
  ROTATION_270,

  ROTATION_COUNT
};

gfx::Matrix ComputeTransformForRotation(const nsIntRect& aBounds,
                                        ScreenRotation aRotation);

gfx::Matrix ComputeTransformForUnRotation(const nsIntRect& aBounds,
                                          ScreenRotation aRotation);

nsIntRect RotateRect(nsIntRect aRect,
                     const nsIntRect& aBounds,
                     ScreenRotation aRotation);

} // namespace mozilla

#endif // mozilla_WidgetUtils_h