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2 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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3
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4 /*
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5 Sonic Visualiser
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6 An audio file viewer and annotation editor.
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7 Centre for Digital Music, Queen Mary, University of London.
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8 This file copyright 2006 Chris Cannam.
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9
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10 This program is free software; you can redistribute it and/or
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11 modify it under the terms of the GNU General Public License as
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12 published by the Free Software Foundation; either version 2 of the
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13 License, or (at your option) any later version. See the file
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14 COPYING included with this distribution for more information.
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15 */
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16
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17 #ifndef _PANE_H_
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18 #define _PANE_H_
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19
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20 #include <QFrame>
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21 #include <QPoint>
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22
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23 #include "base/ZoomConstraint.h"
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24 #include "base/View.h"
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25 #include "base/Selection.h"
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26
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27 class QWidget;
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28 class QPaintEvent;
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29 class Layer;
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30
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31 class Pane : public View
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32 {
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33 Q_OBJECT
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34
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35 public:
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36 Pane(QWidget *parent = 0);
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37 virtual QString getPropertyContainerIconName() const { return "pane"; }
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38
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39 virtual bool shouldIlluminateLocalFeatures(const Layer *layer,
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40 QPoint &pos) const;
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41 virtual bool shouldIlluminateLocalSelection(QPoint &pos,
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42 bool &closeToLeft,
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43 bool &closeToRight) const;
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44
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45 void setCentreLineVisible(bool visible);
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46 bool getCentreLineVisible() const { return m_centreLineVisible; }
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47
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48 virtual QString toXmlString(QString indent = "",
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49 QString extraAttributes = "") const;
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50
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51 signals:
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52 void paneInteractedWith();
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53
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54 public slots:
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55 virtual void toolModeChanged();
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56
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57 protected:
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58 virtual void paintEvent(QPaintEvent *e);
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59 virtual void mousePressEvent(QMouseEvent *e);
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60 virtual void mouseReleaseEvent(QMouseEvent *e);
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61 virtual void mouseMoveEvent(QMouseEvent *e);
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62 virtual void mouseDoubleClickEvent(QMouseEvent *e);
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63 virtual void leaveEvent(QEvent *e);
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64 virtual void wheelEvent(QWheelEvent *e);
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65
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66 Selection getSelectionAt(int x, bool &closeToLeft, bool &closeToRight) const;
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67
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68 bool editSelectionStart(QMouseEvent *e);
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69 bool editSelectionDrag(QMouseEvent *e);
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70 bool editSelectionEnd(QMouseEvent *e);
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71 bool selectionIsBeingEdited() const;
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72
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73 bool m_identifyFeatures;
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74 QPoint m_identifyPoint;
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75 QPoint m_clickPos;
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76 QPoint m_mousePos;
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77 bool m_clickedInRange;
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78 bool m_shiftPressed;
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79 bool m_ctrlPressed;
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80 bool m_navigating;
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81 bool m_resizing;
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82 size_t m_dragCentreFrame;
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83 bool m_centreLineVisible;
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84 size_t m_selectionStartFrame;
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85 Selection m_editingSelection;
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86 int m_editingSelectionEdge;
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87 };
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88
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89 #endif
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90
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