1 // Copyright 2014 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 ASH_WM_SNAP_TO_PIXEL_LAYOUT_MANAGER_H_ 6 #define ASH_WM_SNAP_TO_PIXEL_LAYOUT_MANAGER_H_ 7 8 #include "ash/ash_export.h" 9 #include "base/macros.h" 10 #include "ui/aura/layout_manager.h" 11 12 namespace ash { 13 14 // A layout manager that places children's layer at the physical pixel 15 // boundaries. 16 class ASH_EXPORT SnapToPixelLayoutManager : public aura::LayoutManager { 17 public: 18 explicit SnapToPixelLayoutManager(aura::Window* container); 19 virtual ~SnapToPixelLayoutManager(); 20 21 protected: 22 // Overridden from aura::LayoutManager: 23 virtual void OnWindowResized() OVERRIDE; 24 virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE; 25 virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE; 26 virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE; 27 virtual void OnChildWindowVisibilityChanged(aura::Window* child, 28 bool visibile) OVERRIDE; 29 virtual void SetChildBounds(aura::Window* child, 30 const gfx::Rect& requested_bounds) OVERRIDE; 31 32 private: 33 DISALLOW_COPY_AND_ASSIGN(SnapToPixelLayoutManager); 34 }; 35 36 } // namespace ash 37 38 #endif // ASH_WM_SNAP_TO_PIXEL_LAYOUT_MANAGER_H_ 39
