Animated Rotation

views/animation/screen_rotation.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef VIEWS_ANIMATION_SCREEN_ROTATION_H_
+#define VIEWS_ANIMATION_SCREEN_ROTATION_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/base/animation/animation_delegate.h"
+#include "ui/gfx/point.h"
+#include "ui/gfx/size.h"
+
+namespace ui {
+class SlideAnimation;
+class InterpolatedTransform;
+}
+
+namespace views {
+class View;
+
+class ScreenRotation : public ui::AnimationDelegate {

[sky, 2011/07/27 22:16:19]

Please add a description

+ public:
+  static void Perform(View* root, float old_degrees, float new_degrees);
+
+ private:
+  ScreenRotation(View* root, float old_degrees, float new_degrees);
+
+  // Implementation of ui::AnimationDelegate
+  virtual void AnimationEnded(const ui::Animation* anim) OVERRIDE;
+  virtual void AnimationProgressed(const ui::Animation* anim) OVERRIDE;
+
+  int NormalizeAngle(int degrees);
+  void Start();
+
+  View* root_;
+  scoped_ptr<ui::SlideAnimation> animation_;
+  scoped_ptr<ui::InterpolatedTransform> interpolated_transform_;
+  float old_degrees_;
+  float new_degrees_;
+  gfx::Size new_size_;
+  gfx::Point new_origin_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScreenRotation);
+};
+
+} // namespace views
+
+#endif // VIEWS_ANIMATION_SCREEN_ROTATION_H_