widget/gtk/ScreenHelperGTK.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_widget_gtk_ScreenHelperGTK_h
   8 #define mozilla_widget_gtk_ScreenHelperGTK_h
   9
  10 #include "mozilla/widget/ScreenManager.h"
  11
  12 #include "gdk/gdk.h"
  13
  14 class nsWindow;
  15
  16 namespace mozilla::widget {
  17
  18 class ScreenHelperGTK final : public ScreenManager::Helper {
  19  public:
  20   ScreenHelperGTK();
  21   ~ScreenHelperGTK();
  22
  23   static int GetMonitorCount();
  24   static gint GetGTKMonitorScaleFactor(gint aMonitorNum = 0);
  25   static RefPtr<widget::Screen> GetScreenForWindow(nsWindow* aWindow);
  26 };
  27
  28 }  // namespace mozilla::widget
  29
  30 #endif  // mozilla_widget_gtk_ScreenHelperGTK_h