tdesktop/Telegram/SourceFiles/media/player/media_player_button.h

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
#pragma once
#include "ui/abstract_button.h"
#include "styles/style_media_player.h"
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namespace Media {
namespace Player {
class PlayButtonLayout {
public:
enum class State {
Play,
Pause,
Cancel,
};
PlayButtonLayout(const style::MediaPlayerButton &st, Fn<void()> callback);
void setState(State state);
void finishTransform();
void paint(Painter &p, const QBrush &brush);
private:
void animationCallback();
void startTransform(float64 from, float64 to);
void paintPlay(Painter &p, const QBrush &brush);
void paintPlayToPause(Painter &p, const QBrush &brush, float64 progress);
void paintPlayToCancel(Painter &p, const QBrush &brush, float64 progress);
void paintPauseToCancel(Painter &p, const QBrush &brush, float64 progress);
const style::MediaPlayerButton &_st;
State _state = State::Play;
State _oldState = State::Play;
State _nextState = State::Play;
Animation _transformProgress;
bool _transformBackward = false;
Fn<void()> _callback;
};
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} // namespace Clip
} // namespace Media