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

59 lines
1.5 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
namespace Ui {
class RadialAnimation {
public:
RadialAnimation(AnimationCallbacks &&callbacks);
float64 opacity() const {
return _opacity;
}
bool animating() const {
return _animation.animating();
}
void start(float64 prg);
void update(float64 prg, bool finished, TimeMs ms);
void stop();
void step(TimeMs ms);
void step() {
step(getms());
}
void draw(Painter &p, const QRect &inner, int32 thickness, style::color color);
private:
TimeMs _firstStart = 0;
TimeMs _lastStart = 0;
TimeMs _lastTime = 0;
float64 _opacity = 0.;
anim::value a_arcEnd;
anim::value a_arcStart;
BasicAnimation _animation;
};
} // namespace Ui