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

56 lines
1.4 KiB
C++

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