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

66 lines
1.2 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 "styles/style_widgets.h"
#include "ui/rp_widget.h"
namespace Ui {
class FadeAnimation {
public:
FadeAnimation(TWidget *widget, float64 scale = 1.);
bool paint(Painter &p);
void refreshCache();
using FinishedCallback = Fn<void()>;
void setFinishedCallback(FinishedCallback &&callback);
using UpdatedCallback = Fn<void(float64)>;
void setUpdatedCallback(UpdatedCallback &&callback);
void show();
void hide();
void fadeIn(int duration);
void fadeOut(int duration);
void finish() {
stopAnimation();
}
bool animating() const {
return _animation.animating();
}
bool visible() const {
return _visible;
}
private:
void startAnimation(int duration);
void stopAnimation();
void updateCallback();
QPixmap grabContent();
TWidget *_widget = nullptr;
float64 _scale = 1.;
Animation _animation;
QSize _size;
QPixmap _cache;
bool _visible = false;
FinishedCallback _finishedCallback;
UpdatedCallback _updatedCallback;
};
} // namespace Ui