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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 and QMUL.
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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 SV_VIEW_MANAGER_BASE_H
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17 #define SV_VIEW_MANAGER_BASE_H
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18
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19 #include <QObject>
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20
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21 #include "Selection.h"
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22
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23 class AudioPlaySource;
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24 class AudioRecordTarget;
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25
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26 /**
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27 * Base class for ViewManager, with no GUI content. This should
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28 * define all of the ViewManager interface that e.g. audio I/O classes
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29 * need to refer to.
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30 */
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31
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32 class ViewManagerBase : public QObject
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33 {
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34 Q_OBJECT
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35
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36 public:
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37 virtual ~ViewManagerBase();
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38
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39 virtual void setAudioPlaySource(AudioPlaySource *source) = 0;
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40 virtual void setAudioRecordTarget(AudioRecordTarget *target) = 0;
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41
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42 virtual sv_frame_t alignPlaybackFrameToReference(sv_frame_t) const = 0;
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43 virtual sv_frame_t alignReferenceToPlaybackFrame(sv_frame_t) const = 0;
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44
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45 virtual const MultiSelection &getSelection() const = 0;
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46 virtual const MultiSelection::SelectionList &getSelections() const = 0;
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47 virtual sv_frame_t constrainFrameToSelection(sv_frame_t frame) const = 0;
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48
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49 virtual Selection getContainingSelection
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50 (sv_frame_t frame, bool defaultToFollowing) const = 0;
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51
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52 virtual bool getPlayLoopMode() const = 0;
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53 virtual bool getPlaySelectionMode() const = 0;
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54 virtual bool getPlaySoloMode() const = 0;
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55 virtual bool getAlignMode() const = 0;
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56
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57 signals:
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58 /** Emitted when the selection has changed. */
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59 void selectionChanged();
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60
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61 /** Emitted when the play loop mode has been changed. */
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62 void playLoopModeChanged();
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63 void playLoopModeChanged(bool);
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64
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65 /** Emitted when the play selection mode has been changed. */
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66 void playSelectionModeChanged();
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67 void playSelectionModeChanged(bool);
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68
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69 /** Emitted when the play solo mode has been changed. */
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70 void playSoloModeChanged();
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71 void playSoloModeChanged(bool);
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72
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73 /** Emitted when the alignment mode has been changed. */
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74 void alignModeChanged();
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75 void alignModeChanged(bool);
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76 };
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77
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78 #endif
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79
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