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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 _PAN_WIDGET_H_
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17 #define _PAN_WIDGET_H_
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18
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19 #include "base/View.h"
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20
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21 #include <QPoint>
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22
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23 class QWidget;
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24 class QPaintEvent;
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25 class Layer;
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26 class View;
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27
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28 #include <map>
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29
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30 class Panner : public View
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31 {
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32 Q_OBJECT
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33
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34 public:
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35 Panner(QWidget *parent = 0);
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36
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37 void registerView(View *widget);
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38 void unregisterView(View *widget);
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39
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40 virtual QString getPropertyContainerIconName() const { return "panner"; }
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41
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42 public slots:
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43 virtual void modelChanged(size_t startFrame, size_t endFrame);
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44 virtual void modelReplaced();
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45
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46 virtual void viewManagerCentreFrameChanged(void *, unsigned long, bool);
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47 virtual void viewManagerZoomLevelChanged(void *, unsigned long, bool);
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48 virtual void viewManagerPlaybackFrameChanged(unsigned long);
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49
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50 protected:
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51 virtual void paintEvent(QPaintEvent *e);
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52 virtual void mousePressEvent(QMouseEvent *e);
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53 virtual void mouseReleaseEvent(QMouseEvent *e);
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54 virtual void mouseMoveEvent(QMouseEvent *e);
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55 virtual bool shouldLabelSelections() const { return false; }
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56
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57 QPoint m_clickPos;
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58 QPoint m_mousePos;
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59 bool m_clickedInRange;
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60 size_t m_dragCentreFrame;
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61
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62 typedef std::set<void *> WidgetSet;
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63 WidgetSet m_widgets;
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64 };
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65
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66 #endif
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67
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