view framework/MainWindowBase.h @ 570:6f54789f3127 3.0-integration

Fix race condition in first-time recording, where adding the recording wave model would prompt the audio play source to note that its channel count had increased (from 0 to, say, 2) and thus to cause the audio device to be reopened, stopping recording. Fix is to make this only happen if channel count increases beyond that of the device, which shouldn't happen in the recording case

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2007 Chris Cannam and QMUL.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _MAIN_WINDOW_BASE_H_
#define _MAIN_WINDOW_BASE_H_

#include <QFrame>
#include <QString>
#include <QUrl>
#include <QMainWindow>
#include <QPointer>
#include <QThread>

#include "base/Command.h"
#include "view/ViewManager.h"
#include "base/PropertyContainer.h"
#include "base/RecentFiles.h"
#include "base/FrameTimer.h"
#include "layer/LayerFactory.h"
#include "transform/Transform.h"
#include "SVFileReader.h"
#include "data/fileio/FileFinder.h"
#include "data/fileio/FileSource.h"
#include "data/osc/OSCQueue.h"
#include <map>

class Document;
class PaneStack;
class Pane;
class View;
class Fader;
class Overview;
class Layer;
class WaveformLayer;
class WaveFileModel;
class AudioCallbackPlaySource;
class AudioRecordTarget;
class CommandHistory;
class QMenu;
class AudioDial;
class LevelPanWidget;
class LevelPanToolButton;
class QLabel;
class QCheckBox;
class PreferencesDialog;
class QTreeView;
class QPushButton;
class OSCMessage;
class MIDIInput;
class KeyReference;
class Labeller;
class ModelDataTableDialog;
class QSignalMapper;
class QShortcut;
class AlignmentModel;

namespace breakfastquay {
    class SystemPlaybackTarget;
    class SystemAudioIO;
    class ResamplerWrapper;
}

/**
 * The base class for the SV main window.  This includes everything to
 * do with general document and pane stack management, but nothing
 * that involves user interaction -- this doesn't create the widget or
 * menu structures or editing tools, and if a function needs to open a
 * dialog, it shouldn't be in here.  This permits "variations on SV"
 * to use different subclasses retaining the same general structure.
 */

class MainWindowBase : public QMainWindow, public FrameTimer
{
    Q_OBJECT

public:
    enum SoundOption {
        WithAudioOutput = 0x01,
        WithAudioInput  = 0x02,
        WithMIDIInput   = 0x04,
        WithEverything  = 0xff,
        WithNothing     = 0x00
    };
    typedef int SoundOptions;
    
    MainWindowBase(SoundOptions options = WithEverything);
    virtual ~MainWindowBase();
    
    enum AudioFileOpenMode {
        ReplaceSession,
        ReplaceMainModel,
        CreateAdditionalModel,
        ReplaceCurrentPane,
        AskUser
    };

    enum FileOpenStatus {
        FileOpenSucceeded,
        FileOpenFailed,
        FileOpenCancelled,
        FileOpenWrongMode // attempted to open layer when no main model present
    };

    enum AudioRecordMode {
        RecordReplaceSession,
        RecordCreateAdditionalModel
    };
    
    virtual FileOpenStatus open(FileSource source, AudioFileOpenMode = AskUser);
    virtual FileOpenStatus openPath(QString fileOrUrl, AudioFileOpenMode = AskUser);
    virtual FileOpenStatus openAudio(FileSource source, AudioFileOpenMode = AskUser, QString templateName = "");
    virtual FileOpenStatus openPlaylist(FileSource source, AudioFileOpenMode = AskUser);
    virtual FileOpenStatus openLayer(FileSource source);
    virtual FileOpenStatus openImage(FileSource source);

    virtual FileOpenStatus openDirOfAudio(QString dirPath);
    
    virtual FileOpenStatus openSession(FileSource source);
    virtual FileOpenStatus openSessionPath(QString fileOrUrl);
    virtual FileOpenStatus openSessionTemplate(QString templateName);
    virtual FileOpenStatus openSessionTemplate(FileSource source);

    virtual bool saveSessionFile(QString path);
    virtual bool saveSessionTemplate(QString path);

    /// Implementation of FrameTimer interface method
    virtual sv_frame_t getFrame() const;

    void setDefaultFfwdRwdStep(RealTime step) {
        m_defaultFfwdRwdStep = step;
    }

    void setAudioRecordMode(AudioRecordMode mode) {
        m_audioRecordMode = mode;
    }
    
signals:
    // Used to toggle the availability of menu actions
    void canAddPane(bool);
    void canDeleteCurrentPane(bool);
    void canAddLayer(bool);
    void canImportMoreAudio(bool);
    void canReplaceMainAudio(bool);
    void canImportLayer(bool);
    void canChangeSessionTemplate(bool);
    void canExportAudio(bool);
    void canExportLayer(bool);
    void canExportImage(bool);
    void canRenameLayer(bool);
    void canEditLayer(bool);
    void canEditLayerTabular(bool);
    void canMeasureLayer(bool);
    void canSelect(bool);
    void canClearSelection(bool);
    void canEditSelection(bool);
    void canDeleteSelection(bool);
    void canPaste(bool);
    void canInsertInstant(bool);
    void canInsertInstantsAtBoundaries(bool);
    void canInsertItemAtSelection(bool);
    void canRenumberInstants(bool);
    void canSubdivideInstants(bool);
    void canWinnowInstants(bool);
    void canDeleteCurrentLayer(bool);
    void canZoom(bool);
    void canScroll(bool);
    void canPlay(bool);
    void canRecord(bool);
    void canFfwd(bool);
    void canRewind(bool);
    void canPlaySelection(bool);
    void canSpeedUpPlayback(bool);
    void canSlowDownPlayback(bool);
    void canChangePlaybackSpeed(bool);
    void canSelectPreviousPane(bool);
    void canSelectNextPane(bool);
    void canSelectPreviousLayer(bool);
    void canSelectNextLayer(bool);
    void canSave(bool);
    void canSaveAs(bool);
    void hideSplash();
    void hideSplash(QWidget *);
    void sessionLoaded();
    void audioFileLoaded();
    void replacedDocument();
    void activity(QString);

public slots:
    virtual void preferenceChanged(PropertyContainer::PropertyName);
    virtual void resizeConstrained(QSize);
    virtual void recreateAudioIO();

protected slots:
    virtual void zoomIn();
    virtual void zoomOut();
    virtual void zoomToFit();
    virtual void zoomDefault();
    virtual void scrollLeft();
    virtual void scrollRight();
    virtual void jumpLeft();
    virtual void jumpRight();
    virtual void peekLeft();
    virtual void peekRight();

    virtual void showNoOverlays();
    virtual void showMinimalOverlays();
    virtual void showAllOverlays();

    virtual void toggleTimeRulers();
    virtual void toggleZoomWheels();
    virtual void togglePropertyBoxes();
    virtual void toggleStatusBar();
    virtual void toggleCentreLine();

    virtual void play();
    virtual void ffwd();
    virtual void ffwdEnd();
    virtual void rewind();
    virtual void rewindStart();
    virtual void record();
    virtual void stop();

    virtual void ffwdSimilar();
    virtual void rewindSimilar();

    virtual void deleteCurrentPane();
    virtual void deleteCurrentLayer();
    virtual void editCurrentLayer();

    virtual void previousPane();
    virtual void nextPane();
    virtual void previousLayer();
    virtual void nextLayer();

    virtual void playLoopToggled();
    virtual void playSelectionToggled();
    virtual void playSoloToggled();

    virtual void audioChannelCountIncreased(int count);

    virtual void sampleRateMismatch(sv_samplerate_t, sv_samplerate_t, bool) = 0;
    virtual void audioOverloadPluginDisabled() = 0;
    virtual void audioTimeStretchMultiChannelDisabled() = 0;

    virtual void playbackFrameChanged(sv_frame_t);
    virtual void globalCentreFrameChanged(sv_frame_t);
    virtual void viewCentreFrameChanged(View *, sv_frame_t);
    virtual void viewZoomLevelChanged(View *, int, bool);
    virtual void outputLevelsChanged(float, float) = 0;
    virtual void recordDurationChanged(sv_frame_t, sv_samplerate_t);

    virtual void currentPaneChanged(Pane *);
    virtual void currentLayerChanged(Pane *, Layer *);

    virtual void selectAll();
    virtual void selectToStart();
    virtual void selectToEnd();
    virtual void selectVisible();
    virtual void clearSelection();

    virtual void cut();
    virtual void copy();
    virtual void paste();
    virtual void pasteAtPlaybackPosition();
    virtual void pasteRelative(sv_frame_t offset);
    virtual void deleteSelected();

    virtual void insertInstant();
    virtual void insertInstantAt(sv_frame_t);
    virtual void insertInstantsAtBoundaries();
    virtual void insertItemAtSelection();
    virtual void insertItemAt(sv_frame_t, sv_frame_t);
    virtual void renumberInstants();
    virtual void subdivideInstantsBy(int);
    virtual void winnowInstantsBy(int);

    virtual void documentModified();
    virtual void documentRestored();

    virtual void layerAdded(Layer *);
    virtual void layerRemoved(Layer *);
    virtual void layerAboutToBeDeleted(Layer *);
    virtual void layerInAView(Layer *, bool);

    virtual void mainModelChanged(WaveFileModel *);
    virtual void modelAdded(Model *);
    virtual void modelAboutToBeDeleted(Model *);

    virtual void updateMenuStates();
    virtual void updateDescriptionLabel() = 0;

    virtual void modelGenerationFailed(QString, QString) = 0;
    virtual void modelGenerationWarning(QString, QString) = 0;
    virtual void modelRegenerationFailed(QString, QString, QString) = 0;
    virtual void modelRegenerationWarning(QString, QString, QString) = 0;

    virtual void alignmentComplete(AlignmentModel *);
    virtual void alignmentFailed(QString) = 0;

    virtual void rightButtonMenuRequested(Pane *, QPoint point) = 0;

    virtual void paneAdded(Pane *) = 0;
    virtual void paneHidden(Pane *) = 0;
    virtual void paneAboutToBeDeleted(Pane *) = 0;
    virtual void paneDropAccepted(Pane *, QStringList) = 0;
    virtual void paneDropAccepted(Pane *, QString) = 0;
    virtual void paneDeleteButtonClicked(Pane *);

    virtual void oscReady();
    virtual void pollOSC();
    virtual void handleOSCMessage(const OSCMessage &) = 0;

    virtual void contextHelpChanged(const QString &);
    virtual void inProgressSelectionChanged();

    virtual FileOpenStatus openSessionFromRDF(FileSource source);
    virtual FileOpenStatus openLayersFromRDF(FileSource source);

    virtual void closeSession() = 0;

    virtual void emitHideSplash();

    virtual void newerVersionAvailable(QString) { }

    virtual void menuActionMapperInvoked(QObject *);

protected:
    QString                  m_sessionFile;
    QString                  m_audioFile;
    Document                *m_document;

    PaneStack               *m_paneStack;
    ViewManager             *m_viewManager;
    Layer                   *m_timeRulerLayer;

    SoundOptions             m_soundOptions;

    AudioCallbackPlaySource *m_playSource;
    AudioRecordTarget       *m_recordTarget;
    breakfastquay::ResamplerWrapper *m_resamplerWrapper;
    breakfastquay::SystemPlaybackTarget *m_playTarget; // only one of this...
    breakfastquay::SystemAudioIO *m_audioIO;           // ... and this exists

    class OSCQueueStarter : public QThread
    {
    public:
        OSCQueueStarter(MainWindowBase *mwb) : QThread(mwb), m_mwb(mwb) { }
        virtual void run() {
            OSCQueue *queue = new OSCQueue(); // can take a long time
            m_mwb->m_oscQueue = queue;
        }
    private:
        MainWindowBase *m_mwb;
    };

    OSCQueue                *m_oscQueue;
    OSCQueueStarter         *m_oscQueueStarter;
    void startOSCQueue();

    MIDIInput               *m_midiInput;

    RecentFiles              m_recentFiles;
    RecentFiles              m_recentTransforms;

    bool                     m_documentModified;
    bool                     m_openingAudioFile;
    bool                     m_abandoning;

    Labeller                *m_labeller;

    int                      m_lastPlayStatusSec;
    mutable QString          m_myStatusMessage;

    bool                     m_initialDarkBackground;

    RealTime                 m_defaultFfwdRwdStep;

    AudioRecordMode          m_audioRecordMode;

    mutable QLabel *m_statusLabel;
    QLabel *getStatusLabel() const;

    WaveFileModel *getMainModel();
    const WaveFileModel *getMainModel() const;
    void createDocument();

    Pane *addPaneToStack();
    Layer *getSnapLayer() const;

    typedef std::map<Layer *, QPointer<ModelDataTableDialog> > LayerDataDialogMap;
    typedef std::set<QPointer<ModelDataTableDialog> > DataDialogSet;
    typedef std::map<View *, DataDialogSet> ViewDataDialogMap;

    LayerDataDialogMap m_layerDataDialogMap;
    ViewDataDialogMap m_viewDataDialogMap;

    void removeLayerEditDialog(Layer *);

    class PaneCallback : public SVFileReaderPaneCallback
    {
    public:
	PaneCallback(MainWindowBase *mw) : m_mw(mw) { }
	virtual Pane *addPane() { return m_mw->addPaneToStack(); }
	virtual void setWindowSize(int width, int height) {
	    m_mw->resizeConstrained(QSize(width, height));
	}
	virtual void addSelection(sv_frame_t start, sv_frame_t end) {
	    m_mw->m_viewManager->addSelectionQuietly(Selection(start, end));
	}
    protected:
	MainWindowBase *m_mw;
    };

    class AddPaneCommand : public Command
    {
    public:
	AddPaneCommand(MainWindowBase *mw);
	virtual ~AddPaneCommand();
	
	virtual void execute();
	virtual void unexecute();
	virtual QString getName() const;

	Pane *getPane() { return m_pane; }

    protected:
	MainWindowBase *m_mw;
	Pane *m_pane; // Main window owns this, but I determine its lifespan
	Pane *m_prevCurrentPane; // I don't own this
	bool m_added;
    };

    class RemovePaneCommand : public Command
    {
    public:
	RemovePaneCommand(MainWindowBase *mw, Pane *pane);
	virtual ~RemovePaneCommand();
	
	virtual void execute();
	virtual void unexecute();
	virtual QString getName() const;

    protected:
	MainWindowBase *m_mw;
	Pane *m_pane; // Main window owns this, but I determine its lifespan
	Pane *m_prevCurrentPane; // I don't own this
	bool m_added;
    };

    virtual bool checkSaveModified() = 0;

    virtual QString getOpenFileName(FileFinder::FileType type);
    virtual QString getSaveFileName(FileFinder::FileType type);
    virtual void registerLastOpenedFilePath(FileFinder::FileType type, QString path);

    virtual QString getDefaultSessionTemplate() const;
    virtual void setDefaultSessionTemplate(QString);

    virtual void createAudioIO();
    virtual void deleteAudioIO();
    
    virtual void openHelpUrl(QString url);
    virtual void openLocalFolder(QString path);

    virtual void setupMenus() = 0;
    virtual void updateVisibleRangeDisplay(Pane *p) const = 0;
    virtual void updatePositionStatusDisplays() const = 0;

    // Call this after setting up the menu bar, to fix up single-key
    // shortcuts on OS/X and do any other platform-specific tidying
    virtual void finaliseMenus();
    virtual void finaliseMenu(QMenu *);

    // Call before finaliseMenus if you wish to have a say in this question
    void setIconsVisibleInMenus(bool visible) { m_iconsVisibleInMenus = visible; }
    bool m_iconsVisibleInMenus;
    
    // Only used on OS/X to work around a Qt/Cocoa bug, see finaliseMenus
    QSignalMapper *m_menuShortcutMapper;
    QList<QShortcut *> m_appShortcuts;

    virtual bool shouldCreateNewSessionForRDFAudio(bool *) { return true; }

    virtual void connectLayerEditDialog(ModelDataTableDialog *dialog);

    virtual void toXml(QTextStream &stream, bool asTemplate);
};


#endif