ui/base/animation -> ui/gfx/animation

ui/base/animation/multi_animation.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 UI_BASE_ANIMATION_MULTI_ANIMATION_H_
-#define UI_BASE_ANIMATION_MULTI_ANIMATION_H_
-
-#include <vector>
-
-#include "ui/base/animation/animation.h"
-#include "ui/base/animation/tween.h"
-
-namespace ui {
-
-// MultiAnimation is an animation that consists of a number of sub animations.
-// To create a MultiAnimation pass in the parts, invoke Start() and the delegate
-// is notified as the animation progresses. By default MultiAnimation runs until
-// Stop is invoked, see |set_continuous()| for details.
-class UI_EXPORT MultiAnimation : public Animation {
- public:
-  // Defines part of the animation. Each part consists of the following:
-  //
-  // time_ms: the time of the part.
-  // start_time_ms: the amount of time to offset this part by when calculating
-  // the percented completed.
-  // end_time_ms: the end time used to calculate the percentange completed.
-  //
-  // In most cases |start_time_ms| = 0 and |end_time_ms| = |time_ms|. But you
-  // can adjust the start/end for different effects. For example, to run a part
-  // for 200ms with a % between .25 and .75 use the following three values: 200,
-  // 100, 400.
-  struct Part {
-    Part() : time_ms(0), start_time_ms(0), end_time_ms(0), type(Tween::ZERO) {}
-    Part(int time_ms, Tween::Type type)
-        : time_ms(time_ms),
-          start_time_ms(0),
-          end_time_ms(time_ms),
-          type(type) {}
-
-    int time_ms;
-    int start_time_ms;
-    int end_time_ms;
-    Tween::Type type;
-  };
-
-  typedef std::vector<Part> Parts;
-
-  MultiAnimation(const Parts& parts, base::TimeDelta timer_interval);
-  virtual ~MultiAnimation();
-
-  // Default interval.
-  static base::TimeDelta GetDefaultTimerInterval();
-
-  // Sets whether the animation continues after it reaches the end. If true, the
-  // animation runs until explicitly stopped. The default is true.
-  void set_continuous(bool continuous) { continuous_ = continuous; }
-
-  // Returns the current value. The current value for a MultiAnimation is
-  // determined from the tween type of the current part.
-  virtual double GetCurrentValue() const OVERRIDE;
-
-  // Returns the index of the current part.
-  size_t current_part_index() const { return current_part_index_; }
-
- protected:
-  // Animation overrides.
-  virtual void Step(base::TimeTicks time_now) OVERRIDE;
-  virtual void SetStartTime(base::TimeTicks start_time) OVERRIDE;
-
- private:
-  // Returns the part containing the specified time. |time_ms| is reset to be
-  // relative to the part containing the time and |part_index| the index of the
-  // part.
-  const Part& GetPart(int* time_ms, size_t* part_index);
-
-  // The parts that make up the animation.
-  const Parts parts_;
-
-  // Total time of all the parts.
-  const int cycle_time_ms_;
-
-  // Current value for the animation.
-  double current_value_;
-
-  // Index of the current part.
-  size_t current_part_index_;
-
-  // See description above setter.
-  bool continuous_;
-
-  DISALLOW_COPY_AND_ASSIGN(MultiAnimation);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_ANIMATION_MULTI_ANIMATION_H_