John Preston
88fcc56992
Task: 2026/10/01/settle-the-sending-row-with-a-corner-shrink-emoji-cross-fade-and-star-burst
87 lines
1.8 KiB
C++
87 lines
1.8 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 <QtGui/QPainterPath>
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#include <QtSvg/QSvgRenderer>
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namespace Ui {
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struct StarBurstRange {
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float64 from = 0.;
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float64 till = 0.;
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};
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struct StarBurstSide {
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float64 sign = 1.;
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int count = 0;
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StarBurstRange angle;
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StarBurstRange reach;
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};
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// Angles in degrees (y down); reach, fall, size in extents; start in emitters.
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struct StarBurstDescriptor {
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std::vector<StarBurstSide> sides;
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crl::time delay = 0;
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crl::time spread = 0;
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crl::time lifeMin = 0;
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crl::time lifeMax = 0;
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StarBurstRange fall;
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StarBurstRange startX;
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StarBurstRange startY;
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StarBurstRange size;
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StarBurstRange alpha;
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StarBurstRange twinkle;
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float64 appearTill = 0.2;
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float64 fadeAfter = 0.8;
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float64 deformation = 0.1;
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std::optional<QColor> color;
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};
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struct StarBurstFrame {
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QPointF origin;
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float64 emitter = 0.;
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float64 extent = 0.;
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crl::time elapsed = 0;
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QPainterPath clip;
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};
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class StarBurst final {
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public:
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[[nodiscard]] static std::unique_ptr<StarBurst> Make(
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const StarBurstDescriptor &descriptor);
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[[nodiscard]] crl::time duration() const;
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void paint(QPainter &p, const StarBurstFrame &frame) const;
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private:
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struct Star {
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crl::time birth = 0;
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crl::time life = 0;
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float64 side = 1.;
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float64 angle = 0.;
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float64 reach = 0.;
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float64 fall = 0.;
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QPointF start;
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float64 size = 0.;
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float64 alpha = 0.;
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float64 sinFactor = 0.;
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};
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explicit StarBurst(const StarBurstDescriptor &descriptor);
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std::vector<Star> _stars;
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mutable QSvgRenderer _sprite;
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float64 _appearTill = 0.;
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float64 _fadeAfter = 0.;
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float64 _deformation = 0.;
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crl::time _duration = 0;
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};
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} // namespace Ui
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