1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_GFX_SCREEN_WIN_H_ 6 #define UI_GFX_SCREEN_WIN_H_ 7 8 #include "base/compiler_specific.h" 9 #include "ui/gfx/display_change_notifier.h" 10 #include "ui/gfx/gfx_export.h" 11 #include "ui/gfx/screen.h" 12 #include "ui/gfx/win/singleton_hwnd.h" 13 14 namespace gfx { 15 16 class GFX_EXPORT ScreenWin : public Screen, 17 public SingletonHwnd::Observer { 18 public: 19 ScreenWin(); 20 virtual ~ScreenWin(); 21 22 protected: 23 // Overridden from gfx::Screen: 24 virtual bool IsDIPEnabled() OVERRIDE; 25 virtual gfx::Point GetCursorScreenPoint() OVERRIDE; 26 virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE; 27 virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) 28 OVERRIDE; 29 virtual int GetNumDisplays() const OVERRIDE; 30 virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE; 31 virtual gfx::Display GetDisplayNearestWindow( 32 gfx::NativeView window) const OVERRIDE; 33 virtual gfx::Display GetDisplayNearestPoint( 34 const gfx::Point& point) const OVERRIDE; 35 virtual gfx::Display GetDisplayMatching( 36 const gfx::Rect& match_rect) const OVERRIDE; 37 virtual gfx::Display GetPrimaryDisplay() const OVERRIDE; 38 virtual void AddObserver(DisplayObserver* observer) OVERRIDE; 39 virtual void RemoveObserver(DisplayObserver* observer) OVERRIDE; 40 41 // Overriden from gfx::SingletonHwnd::Observer. 42 virtual void OnWndProc(HWND hwnd, 43 UINT message, 44 WPARAM wparam, 45 LPARAM lparam) OVERRIDE; 46 47 // Returns the HWND associated with the NativeView. 48 virtual HWND GetHWNDFromNativeView(NativeView window) const; 49 50 // Returns the NativeView associated with the HWND. 51 virtual NativeWindow GetNativeWindowFromHWND(HWND hwnd) const; 52 53 private: 54 // Helper implementing the DisplayObserver handling. 55 gfx::DisplayChangeNotifier change_notifier_; 56 57 // Current list of displays. 58 std::vector<gfx::Display> displays_; 59 60 DISALLOW_COPY_AND_ASSIGN(ScreenWin); 61 }; 62 63 } // namespace gfx 64 65 #endif // UI_GFX_SCREEN_WIN_H_ 66
