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// Copyright 2020 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 CHROMECAST_UI_DISPLAY_SETTINGS_BRIGHTNESS_ANIMATION_H_
#define CHROMECAST_UI_DISPLAY_SETTINGS_BRIGHTNESS_ANIMATION_H_
#include "chromecast/ui/display_settings_manager.h"
#include "ui/gfx/animation/animation_delegate.h"
#include "ui/gfx/animation/linear_animation.h"
namespace chromecast {
// Defines a linear animation type to animate the color temperature between two
// values in a given time duration.
class BrightnessAnimation : public gfx::LinearAnimation {
public:
explicit BrightnessAnimation(DisplaySettingsManager::Delegate* controller);
BrightnessAnimation(const BrightnessAnimation&) = delete;
BrightnessAnimation& operator=(const BrightnessAnimation&) = delete;
~BrightnessAnimation() override;
// Starts a new brightness animation from the |current_brightness_| to the
// given |new_target_brightness| in the given |duration|.
void AnimateToNewValue(float new_target_brightness, base::TimeDelta duration);
private:
// gfx::LinearAnimation implementation:
void AnimateToState(double state) override;
void ApplyValuesToDisplay();
DisplaySettingsManager::Delegate* const controller_;
float start_brightness_;
float current_brightness_;
float target_brightness_;
};
} // namespace chromecast
#endif // CHROMECAST_UI_DISPLAY_SETTINGS_BRIGHTNESS_ANIMATION_H_