66 lines
2 KiB
C++
66 lines
2 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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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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