widget/WidgetUtils.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=8 et :
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   6  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #ifndef mozilla_WidgetUtils_h
   9 #define mozilla_WidgetUtils_h
  10
  11 #include "gfxMatrix.h"
  12
  13 namespace mozilla {
  14
  15 // NB: these must match up with pseudo-enum in nsIScreen.idl.
  16 enum ScreenRotation {
  17   ROTATION_0 = 0,
  18   ROTATION_90,
  19   ROTATION_180,
  20   ROTATION_270,
  21
  22   ROTATION_COUNT
  23 };
  24
  25 gfxMatrix ComputeTransformForRotation(const nsIntRect& aBounds,
  26                                       ScreenRotation aRotation);
  27
  28 } // namespace mozilla
  29
  30 #endif // mozilla_WidgetUtils_h