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annotate edwaveform.h @ 400:f44a89a25c97

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Fix waveform display from going over buffer limit.
author Matti Hamalainen <ccr@tnsp.org>
date Fri, 19 Oct 2012 15:56:59 +0300
parents 5137db55f00b
children d34922e6a244
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1 #ifndef EDWAVEFORM_H
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2 #define EDWAVEFORM_H
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3
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4 #include <QWidget>
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5 #include <QLabel>
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6 #include "dmengine.h"
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7
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8 class QWaveTrackDisplay : public QWidget
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9 {
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10 Q_OBJECT
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11
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12 public:
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13 QWaveTrackDisplay(QWidget *parent = 0);
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14
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15 void setWaveform(void *mdata, int msize, int mformat, int mchannels, int mfreq);
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16 float getScaledWidth();
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17 void setScale(const float mscale);
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18 int getBps();
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19 float getDuration();
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20 float getTimeScale(float value);
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21 float getTimeFromCoord(float value);
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22 float getTime();
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23 float getOffset();
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24
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25 QSize minimumSizeHint() const
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26 {
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27 return QSize(100, 60);
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28 }
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29
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30 QSize sizeHint() const
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31 {
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32 return QSize(600, 60);
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33 }
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34
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35 public slots:
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36 void setTime(const float mtime);
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37 void setOffset(const float moffs);
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38
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39 signals:
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40 void timeChanged(float value);
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41 void offsetChanged(float value);
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42
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43 protected:
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44 void mousePressEvent(QMouseEvent *event);
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45 void mouseMoveEvent(QMouseEvent *event);
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46 void mouseReleaseEvent(QMouseEvent *event);
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47
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48 void paintEvent(QPaintEvent *event);
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49
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50 private:
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51 bool dragging;
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52 QPoint dragPoint;
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53 float dragOffs; // milliseconds
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54
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55 float scale;
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56 float time, offs, duration; // in milliseconds
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57
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58 int size, channels, format, freq, sduration;
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59 void *data;
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60 };
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62
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63 class QWaveTrackView : public QWidget
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64 {
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65 Q_OBJECT
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66
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67 private:
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68 QWaveTrackDisplay *wave;
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69 QLabel *infoName, *infoData;
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71 public:
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72
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73 QWaveTrackView(QWidget *parent = 0);
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74 void setWaveform(void *mdata, int mlen, int mformat, int mchannels, int mfreq);
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75 void setName(QString name);
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76 void setTime(const float mtime);
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77 void setOffset(const float moffs);
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78 float getScaledWidth();
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79 void setScale(const float mscale);
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80 float getDuration();
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81 float getTime();
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82 float getOffset();
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83
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84 private slots:
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85 void slotTimeChanged(float value);
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86 void slotOffsetChanged(float value);
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87
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88 signals:
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89 void timeChanged(float value);
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90 void offsetChanged(float value);
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91 };
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92
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93 #endif