test_screen.h revision 6d86b77056ed63eb6871182f42a9fd5f07550f90 
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_AURA_TEST_TEST_SCREEN_H_
6#define UI_AURA_TEST_TEST_SCREEN_H_
7
8#include "base/compiler_specific.h"
9#include "ui/aura/window_observer.h"
10#include "ui/gfx/display.h"
11#include "ui/gfx/screen.h"
12
13namespace gfx {
14class Rect;
15class Transform;
16}
17
18namespace aura {
19class Window;
20class WindowTreeHost;
21
22// A minimal, testing Aura implementation of gfx::Screen.
23class TestScreen : public gfx::Screen,
24                   public WindowObserver {
25 public:
26  // Creates a gfx::Screen of the specified size. If no size is specified, then
27  // creates a 800x600 screen. |size| is in physical pixels.
28  static TestScreen* Create(const gfx::Size& size);
29  // Creates a TestScreen that uses fullscreen for the display.
30  static TestScreen* CreateFullscreen();
31  virtual ~TestScreen();
32
33  WindowTreeHost* CreateHostForPrimaryDisplay();
34
35  void SetDeviceScaleFactor(float device_scale_fator);
36  void SetDisplayRotation(gfx::Display::Rotation rotation);
37  void SetUIScale(float ui_scale);
38
39 protected:
40  gfx::Transform GetRotationTransform() const;
41  gfx::Transform GetUIScaleTransform() const;
42
43  // WindowObserver overrides:
44  virtual void OnWindowBoundsChanged(Window* window,
45                                     const gfx::Rect& old_bounds,
46                                     const gfx::Rect& new_bounds) OVERRIDE;
47  virtual void OnWindowDestroying(Window* window) OVERRIDE;
48
49  // gfx::Screen overrides:
50  virtual bool IsDIPEnabled() OVERRIDE;
51  virtual gfx::Point GetCursorScreenPoint() OVERRIDE;
52  virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE;
53  virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
54      OVERRIDE;
55  virtual int GetNumDisplays() const OVERRIDE;
56  virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE;
57  virtual gfx::Display GetDisplayNearestWindow(
58      gfx::NativeView view) const OVERRIDE;
59  virtual gfx::Display GetDisplayNearestPoint(
60      const gfx::Point& point) const OVERRIDE;
61  virtual gfx::Display GetDisplayMatching(
62      const gfx::Rect& match_rect) const OVERRIDE;
63  virtual gfx::Display GetPrimaryDisplay() const OVERRIDE;
64  virtual void AddObserver(gfx::DisplayObserver* observer) OVERRIDE;
65  virtual void RemoveObserver(gfx::DisplayObserver* observer) OVERRIDE;
66
67 private:
68  explicit TestScreen(const gfx::Rect& screen_bounds);
69
70  aura::WindowTreeHost* host_;
71
72  gfx::Display display_;
73
74  float ui_scale_;
75
76  DISALLOW_COPY_AND_ASSIGN(TestScreen);
77};
78
79}  // namespace aura
80
81#endif  // UI_AURA_TEST_TEST_SCREEN_H_
82