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