tdesktop/Telegram/SourceFiles/gui/animation.cpp

97 lines
2.3 KiB
C++

/*
This file is part of Telegram Desktop,
an unofficial desktop 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.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014 John Preston, https://tdesktop.com
*/
#include "stdafx.h"
#include "animation.h"
#include <QtCore/QTimer>
namespace {
AnimationManager *manager = 0;
};
namespace anim {
float64 linear(const float64 &delta, const float64 &dt) {
return delta * dt;
}
float64 sineInOut(const float64 &delta, const float64 &dt) {
return -(delta / 2) * (cos(M_PI * dt) - 1);
}
float64 halfSine(const float64 &delta, const float64 &dt) {
return delta * sin(M_PI * dt / 2);
}
float64 easeOutBack(const float64 &delta, const float64 &dt) {
static const float64 s = 1.70158;
const float64 t = dt - 1;
return delta * (t * t * ((s + 1) * t + s) + 1);
}
float64 easeInCirc(const float64 &delta, const float64 &dt) {
return -delta * (sqrt(1 - dt * dt) - 1);
}
float64 easeOutCirc(const float64 &delta, const float64 &dt) {
const float64 t = dt - 1;
return delta * sqrt(1 - t * t);
}
float64 easeInCubic(const float64 &delta, const float64 &dt) {
return delta * dt * dt * dt;
}
float64 easeOutCubic(const float64 &delta, const float64 &dt) {
const float64 t = dt - 1;
return delta * (t * t * t + 1);
}
float64 easeInQuint(const float64 &delta, const float64 &dt) {
const float64 t2 = dt * dt;
return delta * t2 * t2 * dt;
}
float64 easeOutQuint(const float64 &delta, const float64 &dt) {
const float64 t = dt - 1, t2 = t * t;
return delta * (t2 * t2 * t + 1);
}
void start(Animated *obj) {
if (!manager) return;
manager->start(obj);
}
void stop(Animated *obj) {
if (!manager) return;
manager->stop(obj);
}
void startManager() {
delete manager;
manager = new AnimationManager();
}
void stopManager() {
delete manager;
manager = 0;
}
}