1 /***************************************************************************
2 **                                                                        **
3 **  Polyphone, a soundfont editor                                         **
4 **  Copyright (C) 2013-2020 Davy Triponney                                **
5 **                                                                        **
6 **  This program is free software: you can redistribute it and/or modify  **
7 **  it under the terms of the GNU General Public License as published by  **
8 **  the Free Software Foundation, either version 3 of the License, or     **
9 **  (at your option) any later version.                                   **
10 **                                                                        **
11 **  This program is distributed in the hope that it will be useful,       **
12 **  but WITHOUT ANY WARRANTY; without even the implied warranty of        **
13 **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the          **
14 **  GNU General Public License for more details.                          **
15 **                                                                        **
16 **  You should have received a copy of the GNU General Public License     **
17 **  along with this program. If not, see http://www.gnu.org/licenses/.    **
18 **                                                                        **
19 ****************************************************************************
20 **           Author: Davy Triponney                                       **
21 **  Website/Contact: https://www.polyphone-soundfonts.com                 **
22 **             Date: 01.01.2013                                           **
23 ***************************************************************************/
24 
25 #ifndef PITCHWHEELSLIDER_H
26 #define PITCHWHEELSLIDER_H
27 
28 #include <QSlider>
29 #include <QTimer>
30 
31 class StyledSlider : public QSlider
32 {
33     Q_OBJECT
34 
35 public:
36     StyledSlider(QWidget * parent = nullptr);
37 
38     // Configuration of the slider
setColorFromMiddle(bool fromMiddle)39     void setColorFromMiddle(bool fromMiddle) { _fromMiddle = fromMiddle; }
40 
41     // If set, the handle will be back to the specified position
setBackToValue(int middleValue)42     void setBackToValue(int middleValue) { _middleValue = middleValue; }
43 
44     // Stop the timer so that the slider stay in its position
stopTimer()45     void stopTimer() { _timer.stop(); }
46 
47 protected:
48     void paintEvent(QPaintEvent *event);
49 
50 private slots:
51     void onTimeout();
52     void onValueChanged(int value);
onSliderPressed()53     void onSliderPressed() { _pressed = true; }
onSliderReleased()54     void onSliderReleased() { _pressed = false; onValueChanged(this->value()); }
55 
56 private:
57     QColor _highlightColor;
58     QColor _backgroundColor;
59     bool _fromMiddle;
60     int _middleValue;
61     bool _pressed;
62     bool _fast;
63 
64     QTimer _timer;
65 };
66 
67 #endif // PITCHWHEELSLIDER_H
68