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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2006 Chris Cannam.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #ifndef _THUMBWHEEL_H_
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17 #define _THUMBWHEEL_H_
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18
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19 #include <QWidget>
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20
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21 class Thumbwheel : public QWidget
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22 {
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23 Q_OBJECT
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24
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25 public:
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26 Thumbwheel(Qt::Orientation orientation, QWidget *parent = 0);
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27 virtual ~Thumbwheel();
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28
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29 int getMinimumValue() const;
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30 int getMaximumValue() const;
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31 int getDefaultValue() const;
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32 float getSpeed() const;
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33 bool getTracking() const;
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34 bool getShowScale() const;
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35 int getValue() const;
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36
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37 virtual void mousePressEvent(QMouseEvent *e);
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38 virtual void mouseDoubleClickEvent(QMouseEvent *e);
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39 virtual void mouseMoveEvent(QMouseEvent *e);
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40 virtual void mouseReleaseEvent(QMouseEvent *e);
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41 virtual void wheelEvent(QWheelEvent *e);
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42 virtual void paintEvent(QPaintEvent *e);
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43
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44 QSize sizeHint() const;
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45
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46 signals:
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47 void valueChanged(int);
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48
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49 public slots:
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50 void setMinimumValue(int min);
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51 void setMaximumValue(int max);
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52 void setDefaultValue(int deft);
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53 void setSpeed(float speed);
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54 void setTracking(bool tracking);
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55 void setShowScale(bool show);
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56 void setValue(int value);
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57 void resetToDefault();
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58
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59 private:
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60 int m_min;
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61 int m_max;
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62 int m_default;
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63 int m_value;
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64 float m_rotation;
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65 Qt::Orientation m_orientation;
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66 float m_speed;
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67 bool m_tracking;
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68 bool m_showScale;
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69 bool m_clicked;
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70 bool m_atDefault;
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71 QPoint m_clickPos;
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72 float m_clickRotation;
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73 };
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74
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75 #endif
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