widget/WidgetUtils.h
author Nicholas D. Matsakis <nmatsakis@mozilla.com>
Tue, 11 Mar 2014 13:23:24 -0400
changeset 206610 4903226b4f2ff4f6c44fe08e91e5dff0e163741d
parent 179764 b15232e11c19b46106ac9d1c480767d7b6deb75c
child 225617 167b548389d3ec57bf3866fcc61750a6dcfa10c1
permissions -rw-r--r--
Bug 973238 Part 6 -- Consult prototype rather than typed object addendum r=bhackett

/* -*- 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);

} // namespace mozilla

#endif // mozilla_WidgetUtils_h