1 /*
2  *  Copyright (c) 2017 Dmitry Kazakov <dimula73@gmail.com>
3  *
4  *  This program is free software; you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License as published by
6  *  the Free Software Foundation; either version 2 of the License, or
7  *  (at your option) any later version.
8  *
9  *  This program 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
12  *  GNU General Public License for more details.
13  *
14  *  You should have received a copy of the GNU General Public License
15  *  along with this program; if not, write to the Free Software
16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  */
18 
19 #ifndef KISSTROKESPEEDMEASURER_H
20 #define KISSTROKESPEEDMEASURER_H
21 
22 #include "kritaimage_export.h"
23 #include <QScopedPointer>
24 
25 #include <QtGlobal>
26 
27 class QPointF;
28 
29 
30 class KRITAIMAGE_EXPORT KisStrokeSpeedMeasurer
31 {
32 public:
33     KisStrokeSpeedMeasurer(int timeSmoothWindow);
34     ~KisStrokeSpeedMeasurer();
35 
36     void addSample(const QPointF &pt, int time);
37     void addSamples(const QVector<QPointF> &points, int time);
38 
39     qreal averageSpeed() const;
40     qreal currentSpeed() const;
41     qreal maxSpeed() const;
42 
43     void reset();
44 
45 private:
46     void sampleMaxSpeed();
47 
48 private:
49     struct Private;
50     const QScopedPointer<Private> m_d;
51 };
52 
53 #endif // KISSTROKESPEEDMEASURER_H
54