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1 /* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 A waveform viewer and audio annotation editor.
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5 Chris Cannam, Queen Mary University of London, 2005-2006
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6
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7 This is experimental software. Not for distribution.
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8 */
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9
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10 #ifndef _COLOUR_3D_PLOT_H_
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11 #define _COLOUR_3D_PLOT_H_
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12
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13 #include "base/Layer.h"
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14
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15 #include "model/DenseThreeDimensionalModel.h"
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16
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17 class View;
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18 class QPainter;
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19 class QImage;
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20
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21 /**
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22 * This is a view that displays dense 3-D data (time, some sort of
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23 * binned y-axis range, value) as a colour plot with value mapped to
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24 * colour range. Its source is a DenseThreeDimensionalModel.
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25 *
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26 * This was the original implementation for the spectrogram view, but
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27 * it was replaced with a more efficient implementation that derived
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28 * the spectrogram itself from a DenseTimeValueModel instead of using
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29 * a three-dimensional model. This class is retained in case it
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30 * becomes useful, but it will probably need some cleaning up if it's
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31 * ever actually used.
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32 */
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33
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34 class Colour3DPlotLayer : public Layer
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35 {
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36 Q_OBJECT
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37
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38 public:
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39 Colour3DPlotLayer();
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40 ~Colour3DPlotLayer();
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41
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42 virtual const ZoomConstraint *getZoomConstraint() const { return m_model; }
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43 virtual const Model *getModel() const { return m_model; }
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44 virtual void paint(View *v, QPainter &paint, QRect rect) const;
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45
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46 virtual int getVerticalScaleWidth(View *v, QPainter &) const;
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47 virtual void paintVerticalScale(View *v, QPainter &paint, QRect rect) const;
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48
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49 virtual QString getFeatureDescription(View *v, QPoint &) const;
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50
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51 virtual bool snapToFeatureFrame(View *v, int &frame,
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52 size_t &resolution,
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53 SnapType snap) const;
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54
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55 virtual bool isLayerScrollable(const View *v) const;
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56
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57 void setModel(const DenseThreeDimensionalModel *model);
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58
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59 virtual int getCompletion() const { return m_model->getCompletion(); }
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60
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61
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62 /*
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63 virtual PropertyList getProperties() const;
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64 virtual PropertyType getPropertyType(const PropertyName &) const;
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65 virtual int getPropertyRangeAndValue(const PropertyName &,
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66 int *min, int *max) const;
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67 virtual QString getPropertyValueLabel(const PropertyName &,
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68 int value) const;
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69 virtual void setProperty(const PropertyName &, int value);
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70 */
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71
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72 void setProperties(const QXmlAttributes &attributes) { }
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73
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74 protected slots:
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75 void cacheInvalid();
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76 void cacheInvalid(size_t startFrame, size_t endFrame);
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77
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78 protected:
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79 const DenseThreeDimensionalModel *m_model; // I do not own this
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80
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81 mutable QImage *m_cache;
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82 };
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83
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84 #endif
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