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pendulumcurve.cpp
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1/*
2 * Copyright (C) 2010 Bruno Abinader <bruno.abinader@indt.org.br>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#include "pendulumcurve_p.h"
19
25static qreal pendulumFunction(qreal progress)
26{
27 if (progress <= 0.25) {
28 progress *= 4;
29 } else if (progress <= 0.50) {
30 progress -= 0.25;
31 progress *= 4;
32 progress = 1 - progress;
33 } else if (progress <= 0.75) {
34 progress -= 0.50;
35 progress *= -4;
36 } else {
37 progress -= 0.75;
38 progress *= 4;
39 progress = 1 - progress;
40 progress *= -1;
41 }
42 return progress;
43}
44
45namespace Plasma
46{
47
48PendulumCurve::PendulumCurve()
49 : QEasingCurve()
50{
51 setCustomType(pendulumFunction);
52}
53
54} // namespace Plasma
Plasma
Namespace for everything in libplasma.
Definition: abstractdialogmanager.cpp:25
pendulumFunction
static qreal pendulumFunction(qreal progress)
This static method is used to create a custom easing curve type.
Definition: pendulumcurve.cpp:25
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