initial commit for 0.4.18 version of Telegram Desktop

Telegram/SourceFiles/gui/animation.cpp

@@ -0,0 +1,96 @@
+/*
+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;
+	}
+
+}