tdesktop/Telegram/SourceFiles/ui/effects/fireworks_animation.h

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "ui/effects/animations.h"
namespace Ui {
class FireworksAnimation final {
public:
explicit FireworksAnimation(Fn<void()> repaint);
bool paint(QPainter &p, const QRect &rect);
private:
struct Particle {
enum class Type : uchar {
Circle,
Rectangle
};
float64 x = 0.;
float64 y = 0.;
float64 moveX = 0.;
float64 moveY = 0.;
uint16 rotation = 0;
Type type = Type::Circle;
uchar color = 0;
bool right = false;
uchar size = 0;
uchar xFinished = 0;
uchar finishedStart = 0;
bool finished = false;
};
void update(crl::time now);
void startFall();
void paintParticle(
QPainter &p,
const Particle &particle,
const QRect &rect);
void initParticle(Particle &particle, bool falling);
void updateParticle(Particle &particle, crl::time dt);
std::vector<Particle> _particles;
std::vector<QBrush> _brushes;
Ui::Animations::Basic _animation;
Fn<void()> _repaint;
crl::time _lastUpdate = 0;
float64 _speedCoef = 1.;
int _fallingDown = 0;
int _smallSide = 0;
bool _startedFall = false;
};
} // namespace Ui