Mercurial > hg > svcore
view base/ViewManager.h @ 29:8460b3bf8f04
* Implement play mute, level and pan controls and a layer visibility control
* Handle swapping the buffers in AudioCallbackPlaySource more gracefully, so
that in many cases it can be done inaudibly. Still gets it wrong when
playing in a noncontiguous selection.
* Fix to SV file save for non-2d sparse models
* Fixes to LED button drawing and AudioDial mouse functionality
* Add progress bar for Ogg file import
* Reshuffle PropertyContainer and its subclasses so it can be a QObject
* Add layer dormancy (invisible layer permitted to free its cache space)
* Optimisations to SpectrogramLayer, removing locks when reading/writing
individual pixels in the cache (should be unnecessary there) -- there's
still an issue here as we need a lock when reading from the model in
case the model is replaced, and we don't currently have one
* Several munlock() calls to make it harder to exhaust real memory if
running in an RT mode with mlockall() active
author | Chris Cannam |
---|---|
date | Fri, 17 Feb 2006 18:04:26 +0000 |
parents | 4b16526b011b |
children | 5e28cbb431d0 |
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/* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */ /* A waveform viewer and audio annotation editor. Chris Cannam, Queen Mary University of London, 2005-2006 This is experimental software. Not for distribution. */ #ifndef _VIEW_MANAGER_H_ #define _VIEW_MANAGER_H_ #include <QObject> #include <QTimer> #include <map> #include "Selection.h" class AudioPlaySource; class Model; /** * The ViewManager manages properties that may need to be synchronised * between separate Views. For example, it handles signals associated * with changes to the global pan and zoom. It also handles playback * properties and play synchronisation. * * Views should be implemented in such a way as to work * correctly whether they are supplied with a ViewManager or not. */ class ViewManager : public QObject { Q_OBJECT public: ViewManager(); void setAudioPlaySource(AudioPlaySource *source); bool isPlaying() const; unsigned long getGlobalCentreFrame() const; unsigned long getGlobalZoom() const; unsigned long getPlaybackFrame() const; void setPlaybackFrame(unsigned long frame); bool haveInProgressSelection() const; const Selection &getInProgressSelection(bool &exclusive) const; void setInProgressSelection(const Selection &selection, bool exclusive); void clearInProgressSelection(); const MultiSelection &getSelection() const; const MultiSelection::SelectionList &getSelections() const; void setSelection(const Selection &selection); void addSelection(const Selection &selection); void removeSelection(const Selection &selection); void clearSelections(); /** * Return the selection that contains a given frame. * If defaultToFollowing is true, and if the frame is not in a * selected area, return the next selection after the given frame. * Return the empty selection if no appropriate selection is found. */ Selection getContainingSelection(size_t frame, bool defaultToFollowing); enum ToolMode { NavigateMode, SelectMode, EditMode, DrawMode, TextMode }; ToolMode getToolMode() const { return m_toolMode; } void setToolMode(ToolMode mode); bool getPlayLoopMode() const { return m_playLoopMode; } void setPlayLoopMode(bool on); bool getPlaySelectionMode() const { return m_playSelectionMode; } void setPlaySelectionMode(bool on); signals: /** Emitted when a widget pans. The originator identifies the widget. */ void centreFrameChanged(void *originator, unsigned long frame, bool locked); /** Emitted when a widget zooms. The originator identifies the widget. */ void zoomLevelChanged(void *originator, unsigned long zoom, bool locked); /** Emitted when the playback frame changes. */ void playbackFrameChanged(unsigned long frame); /** Emitted when the output levels change. Values in range 0.0 -> 1.0. */ void outputLevelsChanged(float left, float right); /** Emitted when the selection has changed. */ void selectionChanged(); /** Emitted when the in-progress (rubberbanding) selection has changed. */ void inProgressSelectionChanged(); /** Emitted when the tool mode has been changed. */ void toolModeChanged(); /** Emitted when the play loop mode has been changed. */ void playLoopModeChanged(); /** Emitted when the play selection mode has been changed. */ void playSelectionModeChanged(); protected slots: void checkPlayStatus(); void playStatusChanged(bool playing); void considerSeek(void *, unsigned long, bool); void considerZoomChange(void *, unsigned long, bool); protected: AudioPlaySource *m_playSource; unsigned long m_globalCentreFrame; unsigned long m_globalZoom; mutable unsigned long m_playbackFrame; float m_lastLeft; float m_lastRight; MultiSelection m_selections; Selection m_inProgressSelection; bool m_inProgressExclusive; ToolMode m_toolMode; bool m_playLoopMode; bool m_playSelectionMode; }; #endif