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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 _TEXT_LAYER_H_
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17 #define _TEXT_LAYER_H_
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18
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19 #include "base/Layer.h"
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20 #include "model/TextModel.h"
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21
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22 #include <QObject>
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23 #include <QColor>
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24
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25 class View;
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26 class QPainter;
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27
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28 class TextLayer : public Layer
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29 {
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30 Q_OBJECT
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31
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32 public:
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33 TextLayer();
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34
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35 virtual void paint(View *v, QPainter &paint, QRect rect) const;
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36
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37 virtual QString getFeatureDescription(View *v, QPoint &) const;
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38
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39 virtual bool snapToFeatureFrame(View *v, int &frame,
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40 size_t &resolution,
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41 SnapType snap) const;
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42
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43 virtual void drawStart(View *v, QMouseEvent *);
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44 virtual void drawDrag(View *v, QMouseEvent *);
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45 virtual void drawEnd(View *v, QMouseEvent *);
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46
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47 virtual void editStart(View *v, QMouseEvent *);
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48 virtual void editDrag(View *v, QMouseEvent *);
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49 virtual void editEnd(View *v, QMouseEvent *);
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50
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51 virtual void moveSelection(Selection s, size_t newStartFrame);
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52 virtual void resizeSelection(Selection s, Selection newSize);
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53
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54 virtual void editOpen(View *, QMouseEvent *); // on double-click
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55
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56 virtual const Model *getModel() const { return m_model; }
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57 void setModel(TextModel *model);
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58
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59 virtual PropertyList getProperties() const;
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60 virtual PropertyType getPropertyType(const PropertyName &) const;
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61 virtual int getPropertyRangeAndValue(const PropertyName &,
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62 int *min, int *max) const;
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63 virtual QString getPropertyValueLabel(const PropertyName &,
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64 int value) const;
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65 virtual void setProperty(const PropertyName &, int value);
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66
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67 void setBaseColour(QColor);
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68 QColor getBaseColour() const { return m_colour; }
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69
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70 virtual bool isLayerScrollable(const View *v) const;
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71
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72 virtual bool isLayerEditable() const { return true; }
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73
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74 virtual int getCompletion() const { return m_model->getCompletion(); }
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75
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76 virtual QString toXmlString(QString indent = "",
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77 QString extraAttributes = "") const;
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78
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79 void setProperties(const QXmlAttributes &attributes);
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80
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81 protected:
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82 int getYForHeight(View *v, float height) const;
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83 float getHeightForY(View *v, int y) const;
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84
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85 TextModel::PointList getLocalPoints(View *v, int x, int y) const;
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86
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87 TextModel *m_model;
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88 bool m_editing;
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89 QPoint m_editOrigin;
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90 TextModel::Point m_originalPoint;
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91 TextModel::Point m_editingPoint;
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92 TextModel::EditCommand *m_editingCommand;
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93 QColor m_colour;
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94 };
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95
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96 #endif
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97
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