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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 QMUL.
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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 #include <QImage>
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21
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22 #include <map>
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23
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24 class RangeMapper;
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25
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26 class Thumbwheel : public QWidget
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27 {
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28 Q_OBJECT
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29
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30 public:
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31 Thumbwheel(Qt::Orientation orientation, QWidget *parent = 0);
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32 virtual ~Thumbwheel();
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33
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34 int getMinimumValue() const;
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35 int getMaximumValue() const;
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36 int getDefaultValue() const;
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37 float getSpeed() const;
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38 bool getTracking() const;
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39 bool getShowScale() const;
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40 int getValue() const;
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41
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42 void setRangeMapper(RangeMapper *mapper); // I take ownership, will delete
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43 const RangeMapper *getRangeMapper() const { return m_rangeMapper; }
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44 double getMappedValue() const;
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45
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46 void setShowToolTip(bool show);
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47
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48 QSize sizeHint() const;
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49
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50 signals:
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51 void valueChanged(int);
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52
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53 void mouseEntered();
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54 void mouseLeft();
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55
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56 public slots:
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57 void setMinimumValue(int min);
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58 void setMaximumValue(int max);
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59 void setDefaultValue(int deft);
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60 void setSpeed(float speed);
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61 void setTracking(bool tracking);
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62 void setShowScale(bool show);
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63 void setValue(int value);
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64 void setMappedValue(double mappedValue);
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65 void scroll(bool up);
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66 void resetToDefault();
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67
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68 protected slots:
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69 void updateMappedValue(int value);
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70
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71 protected:
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72 virtual void mousePressEvent(QMouseEvent *e);
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73 virtual void mouseDoubleClickEvent(QMouseEvent *e);
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74 virtual void mouseMoveEvent(QMouseEvent *e);
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75 virtual void mouseReleaseEvent(QMouseEvent *e);
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76 virtual void wheelEvent(QWheelEvent *e);
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77 virtual void paintEvent(QPaintEvent *e);
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78 virtual void enterEvent(QEvent *);
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79 virtual void leaveEvent(QEvent *);
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80
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81 int m_min;
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82 int m_max;
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83 int m_default;
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84 int m_value;
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85 double m_mappedValue;
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86 bool m_noMappedUpdate;
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87 float m_rotation;
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88 Qt::Orientation m_orientation;
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89 float m_speed;
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90 bool m_tracking;
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91 bool m_showScale;
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92 bool m_clicked;
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93 bool m_atDefault;
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94 QPoint m_clickPos;
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95 float m_clickRotation;
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96 bool m_showTooltip;
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97 RangeMapper *m_rangeMapper;
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98 QImage m_cache;
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99 };
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100
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101 #endif
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