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57 lines
1.1 KiB
C++
57 lines
1.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "ui/rp_widget.h"
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namespace Ui {
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class StarParticles final {
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public:
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enum class Type {
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Right,
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Radial,
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RadialInside,
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};
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StarParticles(Type type, int count, int size);
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void setSpeed(float speed);
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void setVisible(float visible);
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void setColor(const QColor &color);
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void paint(QPainter &p, const QRect &rect, crl::time now);
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private:
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struct Particle {
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float x = 0.;
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float y = 0.;
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float vx = 0.;
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float vy = 0.;
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float rotation = 0.;
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float vrotation = 0.;
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float size = 0.;
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float alpha = 0.;
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crl::time born = 0;
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};
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void generate();
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[[nodiscard]] QImage generateStarCache(int size, QColor color);
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Type _type;
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int _count = 0;
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int _starSize = 0;
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float _speed = 1.f;
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float _visible = 1.f;
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QColor _color = QColor(255, 200, 70);
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std::vector<Particle> _particles;
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base::flat_map<QRgb, QImage> _starCache;
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crl::time _lastTime = 0;
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};
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} // namespace Ui
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