53 lines
1.4 KiB
C++
53 lines
1.4 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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namespace Ui {
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class SlideAnimation {
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public:
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void setSnapshots(QPixmap leftSnapshot, QPixmap rightSnapshot);
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void setOverflowHidden(bool hidden) {
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_overflowHidden = hidden;
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}
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template <typename Lambda>
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void start(bool slideLeft, Lambda &&updateCallback, float64 duration);
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void paintFrame(Painter &p, int x, int y, int outerWidth, TimeMs ms);
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bool animating() const {
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return _animation.animating();
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}
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private:
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Animation _animation;
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QPixmap _leftSnapshot;
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QPixmap _rightSnapshot;
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bool _slideLeft = false;
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bool _overflowHidden = true;
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int _leftSnapshotWidth = 0;
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int _leftSnapshotHeight = 0;
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int _rightSnapshotWidth = 0;
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};
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template <typename Lambda>
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void SlideAnimation::start(bool slideLeft, Lambda &&updateCallback, float64 duration) {
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_slideLeft = slideLeft;
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if (_slideLeft) {
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std::swap(_leftSnapshot, _rightSnapshot);
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}
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_leftSnapshotWidth = _leftSnapshot.width() / cIntRetinaFactor();
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_leftSnapshotHeight = _leftSnapshot.height() / cIntRetinaFactor();
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_rightSnapshotWidth = _rightSnapshot.width() / cIntRetinaFactor();
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_animation.start(std::forward<Lambda>(updateCallback), 0., 1., duration);
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}
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} // namespace Ui
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