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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 _TIME_RULER_H_
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17 #define _TIME_RULER_H_
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18
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19 #include "base/Layer.h"
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20
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21 #include <QRect>
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22 #include <QColor>
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23
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24 class View;
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25 class Model;
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26 class QPainter;
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27
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28 class TimeRulerLayer : 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 TimeRulerLayer();
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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 void setModel(Model *);
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38 virtual const Model *getModel() const { return m_model; }
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39
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40 void setBaseColour(QColor);
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41 QColor getBaseColour() const { return m_colour; }
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42
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43 enum LabelHeight { LabelTop, LabelMiddle, LabelBottom };
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44 void setLabelHeight(LabelHeight h) { m_labelHeight = h; }
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45 LabelHeight getLabelHeight() const { return m_labelHeight; }
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46
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47 virtual PropertyList getProperties() const;
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48 virtual QString getPropertyLabel(const PropertyName &) const;
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49 virtual PropertyType getPropertyType(const PropertyName &) const;
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50 virtual int getPropertyRangeAndValue(const PropertyName &,
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51 int *min, int *max) const;
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52 virtual QString getPropertyValueLabel(const PropertyName &,
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53 int value) const;
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54 virtual void setProperty(const PropertyName &, int value);
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55
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56 virtual bool getValueExtents(float &min, float &max,
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57 bool &log, QString &unit) const {
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58 return false;
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59 }
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60
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61 virtual QString toXmlString(QString indent = "",
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62 QString extraAttributes = "") const;
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63
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64 void setProperties(const QXmlAttributes &attributes);
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65
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66 protected:
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67 Model *m_model;
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68 QColor m_colour;
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69 LabelHeight m_labelHeight;
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70 };
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71
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72 #endif
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