Added old abandoned KDE3 version of the RoseGarden MIDI tool

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 2041 insertions, 0 deletions

diff --git a/src/gui/application/RosegardenGUIView.cpp b/src/gui/application/RosegardenGUIView.cpp
new file mode 100644
index 0000000..c61b51e
--- /dev/null
+++ b/src/gui/application/RosegardenGUIView.cpp
@@ -0,0 +1,2041 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+ 
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+ 
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+ 
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+ 
+    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.
+*/
+
+
+#include "RosegardenGUIView.h"
+#include <kapplication.h>
+
+#include "sound/Midi.h"
+#include "gui/editors/segment/TrackButtons.h"
+#include <klocale.h>
+#include "misc/Debug.h"
+#include "misc/Strings.h"
+#include "document/ConfigGroups.h"
+#include "gui/application/RosegardenDCOP.h"
+#include "base/AudioLevel.h"
+#include "base/Composition.h"
+#include "base/Instrument.h"
+#include "base/MidiDevice.h"
+#include "base/MidiProgram.h"
+#include "base/NotationTypes.h"
+#include "base/RealTime.h"
+#include "base/RulerScale.h"
+#include "base/Segment.h"
+#include "base/Selection.h"
+#include "base/Studio.h"
+#include "base/Track.h"
+#include "commands/segment/AudioSegmentAutoSplitCommand.h"
+#include "commands/segment/AudioSegmentInsertCommand.h"
+#include "commands/segment/SegmentSingleRepeatToCopyCommand.h"
+#include "document/MultiViewCommandHistory.h"
+#include "document/RosegardenGUIDoc.h"
+#include "RosegardenApplication.h"
+#include "gui/configuration/GeneralConfigurationPage.h"
+#include "gui/configuration/AudioConfigurationPage.h"
+#include "gui/dialogs/AudioSplitDialog.h"
+#include "gui/dialogs/AudioManagerDialog.h"
+#include "gui/dialogs/DocumentConfigureDialog.h"
+#include "gui/dialogs/TempoDialog.h"
+#include "gui/editors/eventlist/EventView.h"
+#include "gui/editors/matrix/MatrixView.h"
+#include "gui/editors/notation/NotationView.h"
+#include "gui/editors/parameters/InstrumentParameterBox.h"
+#include "gui/editors/parameters/SegmentParameterBox.h"
+#include "gui/editors/parameters/TrackParameterBox.h"
+#include "gui/editors/segment/segmentcanvas/CompositionView.h"
+#include "gui/editors/segment/segmentcanvas/SegmentSelector.h"
+#include "gui/editors/segment/TrackEditor.h"
+#include "gui/seqmanager/SequenceManager.h"
+#include "gui/seqmanager/SequencerMapper.h"
+#include "gui/rulers/ChordNameRuler.h"
+#include "gui/rulers/LoopRuler.h"
+#include "gui/rulers/TempoRuler.h"
+#include "gui/rulers/StandardRuler.h"
+#include "gui/widgets/ProgressDialog.h"
+#include "gui/widgets/CurrentProgressDialog.h"
+#include "RosegardenGUIApp.h"
+#include "SetWaitCursor.h"
+#include "sound/AudioFile.h"
+#include "sound/AudioFileManager.h"
+#include "sound/MappedEvent.h"
+#include <kcommand.h>
+#include <kconfig.h>
+#include <kmessagebox.h>
+#include <kprocess.h>
+#include <qapplication.h>
+#include <qcursor.h>
+#include <qdialog.h>
+#include <qfileinfo.h>
+#include <qobject.h>
+#include <qstring.h>
+#include <qvbox.h>
+#include <qwidget.h>
+
+
+namespace Rosegarden
+{
+
+// Use this to define the basic unit of the main QCanvas size.
+//
+// This apparently arbitrary figure is what we think is an
+// appropriate width in pixels for a 4/4 bar.  Beware of making it
+// too narrow, as shorter bars will be proportionally smaller --
+// the visual difference between 2/4 and 4/4 is perhaps greater
+// than it sounds.
+//
+static double barWidth44 = 100.0;
+
+const QWidget *RosegardenGUIView::m_lastActiveMainWindow = 0;
+
+// This is the maximum number of matrix, event view or percussion
+// matrix editors to open in a single operation (not the maximum that
+// can be open at a time -- there isn't one)
+//
+static int maxEditorsToOpen = 8;
+
+RosegardenGUIView::RosegardenGUIView(bool showTrackLabels,
+                                     SegmentParameterBox* segmentParameterBox,
+                                     InstrumentParameterBox* instrumentParameterBox,
+                                     TrackParameterBox* trackParameterBox,
+                                     QWidget *parent,
+                                     const char* /*name*/)
+        : QVBox(parent),
+        m_rulerScale(0),
+        m_trackEditor(0),
+        m_segmentParameterBox(segmentParameterBox),
+        m_instrumentParameterBox(instrumentParameterBox),
+        m_trackParameterBox(trackParameterBox)
+{
+    RosegardenGUIDoc* doc = getDocument();
+    Composition *comp = &doc->getComposition();
+
+    double unitsPerPixel =
+        TimeSignature(4, 4).getBarDuration() / barWidth44;
+    m_rulerScale = new SimpleRulerScale(comp, 0, unitsPerPixel);
+
+    // Construct the trackEditor first so we can then
+    // query it for placement information
+    //
+    m_trackEditor = new TrackEditor(doc, this,
+                                    m_rulerScale, showTrackLabels, unitsPerPixel, this /*hbox*/);
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(editSegment(Segment*)),
+            SLOT(slotEditSegment(Segment*)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(editSegmentNotation(Segment*)),
+            SLOT(slotEditSegmentNotation(Segment*)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(editSegmentMatrix(Segment*)),
+            SLOT(slotEditSegmentMatrix(Segment*)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(editSegmentAudio(Segment*)),
+            SLOT(slotEditSegmentAudio(Segment*)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(audioSegmentAutoSplit(Segment*)),
+            SLOT(slotSegmentAutoSplit(Segment*)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(editSegmentEventList(Segment*)),
+            SLOT(slotEditSegmentEventList(Segment*)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(editRepeat(Segment*, timeT)),
+            SLOT(slotEditRepeat(Segment*, timeT)));
+
+    connect(m_trackEditor->getSegmentCanvas(),
+            SIGNAL(setPointerPosition(timeT)),
+            doc, SLOT(slotSetPointerPosition(timeT)));
+
+    connect(m_trackEditor,
+            SIGNAL(droppedDocument(QString)),
+            parent,
+            SLOT(slotOpenDroppedURL(QString)));
+
+    connect(m_trackEditor,
+            SIGNAL(droppedAudio(QString)),
+            this,
+            SLOT(slotDroppedAudio(QString)));
+
+    connect(m_trackEditor,
+            SIGNAL(droppedNewAudio(QString)),
+            this,
+            SLOT(slotDroppedNewAudio(QString)));
+
+    connect(m_instrumentParameterBox,
+            SIGNAL(changeInstrumentLabel(InstrumentId, QString)),
+            this,
+            SLOT(slotChangeInstrumentLabel(InstrumentId, QString)));
+
+    connect(m_instrumentParameterBox,
+            SIGNAL(changeInstrumentLabel(InstrumentId, QString)),
+            m_trackParameterBox,
+            SLOT(slotInstrumentLabelChanged(InstrumentId, QString)));
+
+    connect(m_trackEditor->getTrackButtons(),
+            SIGNAL(nameChanged()),
+            m_trackParameterBox,
+            SLOT(slotSelectedTrackNameChanged()));
+
+    connect(m_trackEditor->getTrackButtons(),
+            SIGNAL(instrumentSelected(int)),
+            m_trackParameterBox,
+            SLOT(slotUpdateControls(int)));
+
+    connect(m_trackParameterBox,
+            SIGNAL(instrumentSelected(TrackId, int)),
+            m_trackEditor->getTrackButtons(),
+            SLOT(slotTrackInstrumentSelection(TrackId, int)));
+
+    connect(this, SIGNAL(controllerDeviceEventReceived(MappedEvent *, const void *)),
+            this, SLOT(slotControllerDeviceEventReceived(MappedEvent *, const void *)));
+
+    if (doc) {
+        /* signal no longer exists
+        	connect(doc, SIGNAL(recordingSegmentUpdated(Segment *,
+        						    timeT)),
+        		this, SLOT(slotUpdateRecordingSegment(Segment *,
+        						      timeT)));
+        */
+
+        QObject::connect
+        (getCommandHistory(), SIGNAL(commandExecuted()),
+         m_trackEditor->getSegmentCanvas(), SLOT(slotUpdateSegmentsDrawBuffer()));
+    }
+}
+
+RosegardenGUIView::~RosegardenGUIView()
+{
+    RG_DEBUG << "~RosegardenGUIView()" << endl;
+    delete m_rulerScale;
+}
+
+RosegardenGUIDoc*
+RosegardenGUIView::getDocument() const
+{
+    return RosegardenGUIApp::self()->getDocument();
+}
+
+void RosegardenGUIView::print(Composition* p, bool previewOnly)
+{
+    SetWaitCursor waitCursor;
+
+    std::vector<Segment *> segmentsToEdit;
+
+    for (Composition::iterator i = p->begin(); i != p->end(); ++i) {
+        if ((*i)->getType() != Segment::Audio) {
+            segmentsToEdit.push_back(*i);
+        }
+    }
+
+    if (segmentsToEdit.empty()) {
+        KMessageBox::sorry(this, i18n("No non-audio segments in composition"));
+        return ;
+    }
+
+    NotationView *notationView = new NotationView(getDocument(),
+                                 segmentsToEdit,
+                                 this,
+                                 (NotationView *)0);
+
+    if (!notationView->isOK()) {
+        RG_DEBUG << "RosegardenGUIView::print : operation cancelled" << endl;
+        delete notationView;
+        return ;
+    }
+
+    notationView->print(previewOnly);
+
+    delete notationView;
+}
+
+void RosegardenGUIView::selectTool(const QString toolName)
+{
+    m_trackEditor->getSegmentCanvas()->slotSetTool(toolName);
+}
+
+bool
+RosegardenGUIView::haveSelection()
+{
+    return m_trackEditor->getSegmentCanvas()->haveSelection();
+}
+
+SegmentSelection
+RosegardenGUIView::getSelection()
+{
+    return m_trackEditor->getSegmentCanvas()->getSelectedSegments();
+}
+
+void RosegardenGUIView::updateSelectionContents()
+{
+    m_trackEditor->getSegmentCanvas()->updateSelectionContents();
+}
+
+/* hjj: WHAT DO DO WITH THIS ?
+void
+RosegardenGUIView::slotEditMetadata(QString name)
+{
+    const QWidget *ww = dynamic_cast<const QWidget *>(sender());
+    QWidget *w = const_cast<QWidget *>(ww);
+
+    DocumentConfigureDialog *configDlg =
+        new DocumentConfigureDialog(getDocument(), w ? w : this);
+
+    configDlg->selectMetadata(name);
+
+    configDlg->show();
+}
+*/
+
+void RosegardenGUIView::slotEditSegment(Segment* segment)
+{
+    Segment::SegmentType type = Segment::Internal;
+
+    if (segment) {
+        type = segment->getType();
+    } else {
+        if (haveSelection()) {
+
+            bool haveType = false;
+
+            SegmentSelection selection = getSelection();
+            for (SegmentSelection::iterator i = selection.begin();
+                    i != selection.end(); ++i) {
+
+                Segment::SegmentType myType = (*i)->getType();
+                if (haveType) {
+                    if (myType != type) {
+                        KMessageBox::sorry(this, i18n("Selection must contain only audio or non-audio segments"));
+                        return ;
+                    }
+                } else {
+                    type = myType;
+                    haveType = true;
+                    segment = *i;
+                }
+            }
+        } else
+            return ;
+    }
+
+    if (type == Segment::Audio) {
+        slotEditSegmentAudio(segment);
+    } else {
+
+        KConfig* config = kapp->config();
+        config->setGroup(GeneralOptionsConfigGroup);
+        GeneralConfigurationPage::DoubleClickClient
+        client =
+            (GeneralConfigurationPage::DoubleClickClient)
+            (config->readUnsignedNumEntry("doubleclickclient",
+                                          (unsigned int)GeneralConfigurationPage::NotationView));
+
+        if (client == GeneralConfigurationPage::MatrixView) {
+
+            bool isPercussion = false;
+            Track *track = getDocument()->getComposition().getTrackById
+                (segment->getTrack());
+            if (track) {
+                InstrumentId iid = track->getInstrument();
+                Instrument *instrument =
+                    getDocument()->getStudio().getInstrumentById(iid);
+                if (instrument && instrument->isPercussion()) isPercussion = true;
+            }
+
+            if (isPercussion) {
+                slotEditSegmentPercussionMatrix(segment);
+            } else {
+                slotEditSegmentMatrix(segment);
+            }
+
+        } else if (client == GeneralConfigurationPage::EventView) {
+            slotEditSegmentEventList(segment);
+        } else {
+            slotEditSegmentNotation(segment);
+        }
+    }
+}
+
+void RosegardenGUIView::slotEditRepeat(Segment *segment,
+                                       timeT time)
+{
+    SegmentSingleRepeatToCopyCommand *command =
+        new SegmentSingleRepeatToCopyCommand(segment, time);
+    slotAddCommandToHistory(command);
+}
+
+void RosegardenGUIView::slotEditSegmentNotation(Segment* p)
+{
+    SetWaitCursor waitCursor;
+    std::vector<Segment *> segmentsToEdit;
+
+    RG_DEBUG << "\n\n\n\nRosegardenGUIView::slotEditSegmentNotation: p is " << p << endl;
+
+    // The logic here is: If we're calling for this operation to
+    // happen on a particular segment, then open that segment and if
+    // it's part of a selection open all other selected segments too.
+    // If we're not calling for any particular segment, then open all
+    // selected segments if there are any.
+
+    if (haveSelection()) {
+
+        SegmentSelection selection = getSelection();
+
+        if (!p || (selection.find(p) != selection.end())) {
+            for (SegmentSelection::iterator i = selection.begin();
+                    i != selection.end(); ++i) {
+                if ((*i)->getType() != Segment::Audio) {
+                    segmentsToEdit.push_back(*i);
+                }
+            }
+        } else {
+            if (p->getType() != Segment::Audio) {
+                segmentsToEdit.push_back(p);
+            }
+        }
+
+    } else if (p) {
+        if (p->getType() != Segment::Audio) {
+            segmentsToEdit.push_back(p);
+        }
+    } else {
+        return ;
+    }
+
+    if (segmentsToEdit.empty()) {
+        KMessageBox::sorry(this, i18n("No non-audio segments selected"));
+        return ;
+    }
+
+    slotEditSegmentsNotation(segmentsToEdit);
+}
+
+void RosegardenGUIView::slotEditSegmentsNotation(std::vector<Segment *> segmentsToEdit)
+{
+    NotationView *view = createNotationView(segmentsToEdit);
+    if (view)
+        view->show();
+}
+
+NotationView *
+RosegardenGUIView::createNotationView(std::vector<Segment *> segmentsToEdit)
+{
+    NotationView *notationView =
+        new NotationView(getDocument(), segmentsToEdit, this, true);
+
+    if (!notationView->isOK()) {
+        RG_DEBUG << "slotEditSegmentNotation : operation cancelled" << endl;
+        delete notationView;
+        return 0;
+    }
+
+    // For tempo changes (ugh -- it'd be nicer to make a tempo change
+    // command that could interpret all this stuff from the dialog)
+    //
+    connect(notationView, SIGNAL(changeTempo(timeT,
+                                 tempoT,
+                                 tempoT,
+                                 TempoDialog::TempoDialogAction)),
+            RosegardenGUIApp::self(), SLOT(slotChangeTempo(timeT,
+                                           tempoT,
+                                           tempoT,
+                                           TempoDialog::TempoDialogAction)));
+
+
+    connect(notationView, SIGNAL(windowActivated()),
+            this, SLOT(slotActiveMainWindowChanged()));
+
+    connect(notationView, SIGNAL(selectTrack(int)),
+            this, SLOT(slotSelectTrackSegments(int)));
+
+    connect(notationView, SIGNAL(play()),
+            RosegardenGUIApp::self(), SLOT(slotPlay()));
+    connect(notationView, SIGNAL(stop()),
+            RosegardenGUIApp::self(), SLOT(slotStop()));
+    connect(notationView, SIGNAL(fastForwardPlayback()),
+            RosegardenGUIApp::self(), SLOT(slotFastforward()));
+    connect(notationView, SIGNAL(rewindPlayback()),
+            RosegardenGUIApp::self(), SLOT(slotRewind()));
+    connect(notationView, SIGNAL(fastForwardPlaybackToEnd()),
+            RosegardenGUIApp::self(), SLOT(slotFastForwardToEnd()));
+    connect(notationView, SIGNAL(rewindPlaybackToBeginning()),
+            RosegardenGUIApp::self(), SLOT(slotRewindToBeginning()));
+    connect(notationView, SIGNAL(panic()),
+            RosegardenGUIApp::self(), SLOT(slotPanic()));
+
+    connect(notationView, SIGNAL(saveFile()),
+            RosegardenGUIApp::self(), SLOT(slotFileSave()));
+    connect(notationView, SIGNAL(jumpPlaybackTo(timeT)),
+            getDocument(), SLOT(slotSetPointerPosition(timeT)));
+    connect(notationView, SIGNAL(openInNotation(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsNotation(std::vector<Segment *>)));
+    connect(notationView, SIGNAL(openInMatrix(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsMatrix(std::vector<Segment *>)));
+    connect(notationView, SIGNAL(openInPercussionMatrix(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsPercussionMatrix(std::vector<Segment *>)));
+    connect(notationView, SIGNAL(openInEventList(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsEventList(std::vector<Segment *>)));
+/* hjj: WHAT DO DO WITH THIS ?
+    connect(notationView, SIGNAL(editMetadata(QString)),
+            this, SLOT(slotEditMetadata(QString)));
+*/
+    connect(notationView, SIGNAL(editTriggerSegment(int)),
+            this, SLOT(slotEditTriggerSegment(int)));
+    connect(notationView, SIGNAL(staffLabelChanged(TrackId, QString)),
+            this, SLOT(slotChangeTrackLabel(TrackId, QString)));
+    connect(notationView, SIGNAL(toggleSolo(bool)),
+            RosegardenGUIApp::self(), SLOT(slotToggleSolo(bool)));
+    connect(notationView, SIGNAL(editTimeSignature(timeT)),
+            RosegardenGUIApp::self(), SLOT(slotEditTempos(timeT)));
+
+    SequenceManager *sM = getDocument()->getSequenceManager();
+
+    connect(sM, SIGNAL(insertableNoteOnReceived(int, int)),
+            notationView, SLOT(slotInsertableNoteOnReceived(int, int)));
+    connect(sM, SIGNAL(insertableNoteOffReceived(int, int)),
+            notationView, SLOT(slotInsertableNoteOffReceived(int, int)));
+
+    connect(notationView, SIGNAL(stepByStepTargetRequested(QObject *)),
+            this, SIGNAL(stepByStepTargetRequested(QObject *)));
+    connect(this, SIGNAL(stepByStepTargetRequested(QObject *)),
+            notationView, SLOT(slotStepByStepTargetRequested(QObject *)));
+    connect(RosegardenGUIApp::self(), SIGNAL(compositionStateUpdate()),
+            notationView, SLOT(slotCompositionStateUpdate()));
+    connect(this, SIGNAL(compositionStateUpdate()),
+            notationView, SLOT(slotCompositionStateUpdate()));
+
+    // Encourage the notation view window to open to the same
+    // interval as the current segment view
+    if (m_trackEditor->getSegmentCanvas()->horizontalScrollBar()->value() > 1) { // don't scroll unless we need to
+        // first find the time at the center of the visible segment canvas
+        int centerX = (int)(m_trackEditor->getSegmentCanvas()->contentsX() +
+                            m_trackEditor->getSegmentCanvas()->visibleWidth() / 2);
+        timeT centerSegmentView = m_trackEditor->getRulerScale()->getTimeForX(centerX);
+        // then scroll the notation view to that time, "localized" for the current segment
+        notationView->scrollToTime(centerSegmentView);
+        notationView->updateView();
+    }
+
+    return notationView;
+}
+
+void RosegardenGUIView::slotEditSegmentMatrix(Segment* p)
+{
+    SetWaitCursor waitCursor;
+
+    std::vector<Segment *> segmentsToEdit;
+
+    // unlike notation, if we're calling for this on a particular
+    // segment we don't open all the other selected segments as well
+    // (fine in notation because they're in a single window)
+
+    if (p) {
+        if (p->getType() != Segment::Audio) {
+            segmentsToEdit.push_back(p);
+        }
+    } else {
+        int count = 0;
+        SegmentSelection selection = getSelection();
+        for (SegmentSelection::iterator i = selection.begin();
+                i != selection.end(); ++i) {
+            if ((*i)->getType() != Segment::Audio) {
+                slotEditSegmentMatrix(*i);
+                if (++count == maxEditorsToOpen)
+                    break;
+            }
+        }
+        return ;
+    }
+
+    if (segmentsToEdit.empty()) {
+        KMessageBox::sorry(this, i18n("No non-audio segments selected"));
+        return ;
+    }
+
+    slotEditSegmentsMatrix(segmentsToEdit);
+}
+
+void RosegardenGUIView::slotEditSegmentPercussionMatrix(Segment* p)
+{
+    SetWaitCursor waitCursor;
+
+    std::vector<Segment *> segmentsToEdit;
+
+    // unlike notation, if we're calling for this on a particular
+    // segment we don't open all the other selected segments as well
+    // (fine in notation because they're in a single window)
+
+    if (p) {
+        if (p->getType() != Segment::Audio) {
+            segmentsToEdit.push_back(p);
+        }
+    } else {
+        int count = 0;
+        SegmentSelection selection = getSelection();
+        for (SegmentSelection::iterator i = selection.begin();
+                i != selection.end(); ++i) {
+            if ((*i)->getType() != Segment::Audio) {
+                slotEditSegmentPercussionMatrix(*i);
+                if (++count == maxEditorsToOpen)
+                    break;
+            }
+        }
+        return ;
+    }
+
+    if (segmentsToEdit.empty()) {
+        KMessageBox::sorry(this, i18n("No non-audio segments selected"));
+        return ;
+    }
+
+    slotEditSegmentsPercussionMatrix(segmentsToEdit);
+}
+
+void RosegardenGUIView::slotEditSegmentsMatrix(std::vector<Segment *> segmentsToEdit)
+{
+    int count = 0;
+    for (std::vector<Segment *>::iterator i = segmentsToEdit.begin();
+            i != segmentsToEdit.end(); ++i) {
+        std::vector<Segment *> tmpvec;
+        tmpvec.push_back(*i);
+        MatrixView *view = createMatrixView(tmpvec, false);
+        if (view) {
+            view->show();
+            if (++count == maxEditorsToOpen)
+                break;
+        }
+    }
+}
+
+void RosegardenGUIView::slotEditSegmentsPercussionMatrix(std::vector<Segment *> segmentsToEdit)
+{
+    int count = 0;
+    for (std::vector<Segment *>::iterator i = segmentsToEdit.begin();
+            i != segmentsToEdit.end(); ++i) {
+        std::vector<Segment *> tmpvec;
+        tmpvec.push_back(*i);
+        MatrixView *view = createMatrixView(tmpvec, true);
+        if (view) {
+            view->show();
+            if (++count == maxEditorsToOpen)
+                break;
+        }
+    }
+}
+
+MatrixView *
+RosegardenGUIView::createMatrixView(std::vector<Segment *> segmentsToEdit, bool drumMode)
+{
+    MatrixView *matrixView = new MatrixView(getDocument(),
+                                            segmentsToEdit,
+                                            this,
+                                            drumMode);
+
+    // For tempo changes (ugh -- it'd be nicer to make a tempo change
+    // command that could interpret all this stuff from the dialog)
+    //
+    connect(matrixView, SIGNAL(changeTempo(timeT,
+                                           tempoT,
+                                           tempoT,
+                                           TempoDialog::TempoDialogAction)),
+            RosegardenGUIApp::self(), SLOT(slotChangeTempo(timeT,
+                                           tempoT,
+                                           tempoT,
+                                           TempoDialog::TempoDialogAction)));
+
+    connect(matrixView, SIGNAL(windowActivated()),
+            this, SLOT(slotActiveMainWindowChanged()));
+
+    connect(matrixView, SIGNAL(selectTrack(int)),
+            this, SLOT(slotSelectTrackSegments(int)));
+
+    connect(matrixView, SIGNAL(play()),
+            RosegardenGUIApp::self(), SLOT(slotPlay()));
+    connect(matrixView, SIGNAL(stop()),
+            RosegardenGUIApp::self(), SLOT(slotStop()));
+    connect(matrixView, SIGNAL(fastForwardPlayback()),
+            RosegardenGUIApp::self(), SLOT(slotFastforward()));
+    connect(matrixView, SIGNAL(rewindPlayback()),
+            RosegardenGUIApp::self(), SLOT(slotRewind()));
+    connect(matrixView, SIGNAL(fastForwardPlaybackToEnd()),
+            RosegardenGUIApp::self(), SLOT(slotFastForwardToEnd()));
+    connect(matrixView, SIGNAL(rewindPlaybackToBeginning()),
+            RosegardenGUIApp::self(), SLOT(slotRewindToBeginning()));
+    connect(matrixView, SIGNAL(panic()),
+            RosegardenGUIApp::self(), SLOT(slotPanic()));
+
+    connect(matrixView, SIGNAL(saveFile()),
+            RosegardenGUIApp::self(), SLOT(slotFileSave()));
+    connect(matrixView, SIGNAL(jumpPlaybackTo(timeT)),
+            getDocument(), SLOT(slotSetPointerPosition(timeT)));
+    connect(matrixView, SIGNAL(openInNotation(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsNotation(std::vector<Segment *>)));
+    connect(matrixView, SIGNAL(openInMatrix(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsMatrix(std::vector<Segment *>)));
+    connect(matrixView, SIGNAL(openInEventList(std::vector<Segment *>)),
+            this, SLOT(slotEditSegmentsEventList(std::vector<Segment *>)));
+    connect(matrixView, SIGNAL(editTriggerSegment(int)),
+            this, SLOT(slotEditTriggerSegment(int)));
+    connect(matrixView, SIGNAL(toggleSolo(bool)),
+            RosegardenGUIApp::self(), SLOT(slotToggleSolo(bool)));
+    connect(matrixView, SIGNAL(editTimeSignature(timeT)),
+            RosegardenGUIApp::self(), SLOT(slotEditTempos(timeT)));
+
+    SequenceManager *sM = getDocument()->getSequenceManager();
+
+    connect(sM, SIGNAL(insertableNoteOnReceived(int, int)),
+            matrixView, SLOT(slotInsertableNoteOnReceived(int, int)));
+    connect(sM, SIGNAL(insertableNoteOffReceived(int, int)),
+            matrixView, SLOT(slotInsertableNoteOffReceived(int, int)));
+
+    connect(matrixView, SIGNAL(stepByStepTargetRequested(QObject *)),
+            this, SIGNAL(stepByStepTargetRequested(QObject *)));
+    connect(this, SIGNAL(stepByStepTargetRequested(QObject *)),
+            matrixView, SLOT(slotStepByStepTargetRequested(QObject *)));
+    connect(RosegardenGUIApp::self(), SIGNAL(compositionStateUpdate()),
+            matrixView, SLOT(slotCompositionStateUpdate()));
+    connect(this, SIGNAL(compositionStateUpdate()),
+            matrixView, SLOT(slotCompositionStateUpdate()));
+    connect(this,
+            SIGNAL(instrumentLevelsChanged(InstrumentId,
+                                           const LevelInfo &)),
+            matrixView,
+            SLOT(slotInstrumentLevelsChanged(InstrumentId,
+                                             const LevelInfo &)));
+
+    // Encourage the matrix view window to open to the same
+    // interval as the current segment view
+    if (m_trackEditor->getSegmentCanvas()->horizontalScrollBar()->value() > 1) { // don't scroll unless we need to
+        // first find the time at the center of the visible segment canvas
+        int centerX = (int)(m_trackEditor->getSegmentCanvas()->contentsX());
+        // Seems to work better for matrix view to scroll to left side
+        // + m_trackEditor->getSegmentCanvas()->visibleWidth() / 2);
+        timeT centerSegmentView = m_trackEditor->getRulerScale()->getTimeForX(centerX);
+        // then scroll the notation view to that time, "localized" for the current segment
+        matrixView->scrollToTime(centerSegmentView);
+        matrixView->updateView();
+    }
+
+    return matrixView;
+}
+
+void RosegardenGUIView::slotEditSegmentEventList(Segment *p)
+{
+    SetWaitCursor waitCursor;
+
+    std::vector<Segment *> segmentsToEdit;
+
+    // unlike notation, if we're calling for this on a particular
+    // segment we don't open all the other selected segments as well
+    // (fine in notation because they're in a single window)
+
+    if (p) {
+        if (p->getType() != Segment::Audio) {
+            segmentsToEdit.push_back(p);
+        }
+    } else {
+        int count = 0;
+        SegmentSelection selection = getSelection();
+        for (SegmentSelection::iterator i = selection.begin();
+                i != selection.end(); ++i) {
+            if ((*i)->getType() != Segment::Audio) {
+                slotEditSegmentEventList(*i);
+                if (++count == maxEditorsToOpen)
+                    break;
+            }
+        }
+        return ;
+    }
+
+    if (segmentsToEdit.empty()) {
+        KMessageBox::sorry(this, i18n("No non-audio segments selected"));
+        return ;
+    }
+
+    slotEditSegmentsEventList(segmentsToEdit);
+}
+
+void RosegardenGUIView::slotEditSegmentsEventList(std::vector<Segment *> segmentsToEdit)
+{
+    int count = 0;
+    for (std::vector<Segment *>::iterator i = segmentsToEdit.begin();
+            i != segmentsToEdit.end(); ++i) {
+        std::vector<Segment *> tmpvec;
+        tmpvec.push_back(*i);
+        EventView *view = createEventView(tmpvec);
+        if (view) {
+            view->show();
+            if (++count == maxEditorsToOpen)
+                break;
+        }
+    }
+}
+
+void RosegardenGUIView::slotEditTriggerSegment(int id)
+{
+    SetWaitCursor waitCursor;
+
+    std::vector<Segment *> segmentsToEdit;
+
+    Segment *s = getDocument()->getComposition().getTriggerSegment(id);
+
+    if (s) {
+        segmentsToEdit.push_back(s);
+    } else {
+        return ;
+    }
+
+    slotEditSegmentsEventList(segmentsToEdit);
+}
+
+void RosegardenGUIView::slotSegmentAutoSplit(Segment *segment)
+{
+    AudioSplitDialog aSD(this, segment, getDocument());
+
+    if (aSD.exec() == QDialog::Accepted) {
+        KCommand *command =
+            new AudioSegmentAutoSplitCommand(getDocument(),
+                                             segment, aSD.getThreshold());
+        slotAddCommandToHistory(command);
+    }
+}
+
+void RosegardenGUIView::slotEditSegmentAudio(Segment *segment)
+{
+    std::cout << "RosegardenGUIView::slotEditSegmentAudio() - "
+    << "starting external audio editor" << std::endl;
+
+    KConfig* config = kapp->config();
+    config->setGroup(GeneralOptionsConfigGroup);
+
+    QString application = config->readEntry("externalaudioeditor", "");
+
+    if (application == "") {
+        application = AudioConfigurationPage::getBestAvailableAudioEditor();
+    }
+
+    QStringList splitCommand = QStringList::split(" ", application);
+
+    if (splitCommand.size() == 0) {
+
+        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
+        << "external editor \"" << application.data()
+        << "\" not found" << std::endl;
+
+        KMessageBox::sorry(this,
+                           i18n("You've not yet defined an audio editor for Rosegarden to use.\nSee Settings -> Configure Rosegarden -> Audio."));
+
+        return ;
+    }
+
+    QFileInfo *appInfo = new QFileInfo(splitCommand[0]);
+    if (appInfo->exists() == false || appInfo->isExecutable() == false) {
+        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
+                  << "can't execute \"" << splitCommand[0] << "\""
+                  << std::endl;
+        return;
+    }
+
+    AudioFile *aF = getDocument()->getAudioFileManager().
+                    getAudioFile(segment->getAudioFileId());
+    if (aF == 0) {
+        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
+        << "can't find audio file" << std::endl;
+        return ;
+    }
+
+    // wait cursor
+    QApplication::setOverrideCursor(QCursor(Qt::waitCursor));
+
+    // Prepare the process
+    //
+    KProcess *process = new KProcess();
+    (*process) << splitCommand;
+    (*process) << QString(aF->getFilename().c_str());
+
+    // Start it
+    //
+    if (!process->start()) {
+        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
+        << "can't start external editor" << std::endl;
+    }
+
+    // restore cursor
+    QApplication::restoreOverrideCursor();
+
+}
+
+void RosegardenGUIView::setZoomSize(double size)
+{
+    m_rulerScale->setUnitsPerPixel(size);
+
+    double duration44 = TimeSignature(4, 4).getBarDuration();
+
+    double xScale = duration44 / (size * barWidth44);
+    RG_DEBUG << "RosegardenGUIView::setZoomSize - xScale =  " << xScale << endl;
+
+    m_trackEditor->slotSetPointerPosition
+    (getDocument()->getComposition().getPosition());
+
+    m_trackEditor->getSegmentCanvas()->clearSegmentRectsCache(true);
+    m_trackEditor->getSegmentCanvas()->slotUpdateSize();
+    m_trackEditor->getSegmentCanvas()->slotUpdateSegmentsDrawBuffer();
+
+    if (m_trackEditor->getTempoRuler()) {
+        m_trackEditor->getTempoRuler()->repaint();
+    }
+
+    if (m_trackEditor->getChordNameRuler()) {
+        m_trackEditor->getChordNameRuler()->repaint();
+    }
+
+    if (m_trackEditor->getTopStandardRuler()) {
+        m_trackEditor->getTopStandardRuler()->repaint();
+    }
+
+    if (m_trackEditor->getBottomStandardRuler()) {
+        m_trackEditor->getBottomStandardRuler()->repaint();
+    }
+}
+
+void RosegardenGUIView::slotSelectTrackSegments(int trackId)
+{
+    // update the instrument parameter box
+    Composition &comp = getDocument()->getComposition();
+    Track *track = comp.getTrackById(trackId);
+
+    if (track == 0)
+        return ;
+
+    // Show the selection on the track buttons.  Find the position.
+    //
+    m_trackEditor->getTrackButtons()->selectLabel(track->getPosition());
+    m_trackEditor->slotScrollToTrack(track->getPosition());
+
+    SegmentSelection segments;
+
+    for (Composition::iterator i =
+                getDocument()->getComposition().begin();
+            i != getDocument()->getComposition().end(); i++) {
+        if (((int)(*i)->getTrack()) == trackId)
+            segments.insert(*i);
+    }
+
+    // Store the selected Track in the Composition
+    //
+    comp.setSelectedTrack(trackId);
+
+    m_trackParameterBox->slotSelectedTrackChanged();
+
+    slotUpdateInstrumentParameterBox(comp.getTrackById(trackId)->
+                                     getInstrument());
+
+
+    slotPropagateSegmentSelection(segments);
+
+    // inform
+    emit segmentsSelected(segments);
+    emit compositionStateUpdate();
+}
+
+void RosegardenGUIView::slotPropagateSegmentSelection(const SegmentSelection &segments)
+{
+    // Send this signal to the GUI to activate the correct tool
+    // on the toolbar so that we have a SegmentSelector object
+    // to write the Segments into
+    //
+    if (!segments.empty()) {
+        emit activateTool(SegmentSelector::ToolName);
+    }
+
+    // Send the segment list even if it's empty as we
+    // use that to clear any current selection
+    //
+    m_trackEditor->getSegmentCanvas()->slotSelectSegments(segments);
+
+    // update the segment parameter box
+    m_segmentParameterBox->useSegments(segments);
+
+    if (!segments.empty()) {
+        emit stateChange("have_selection", true);
+        if (!segments.hasNonAudioSegment()) {
+            emit stateChange("audio_segment_selected", true);
+        }
+    } else {
+        emit stateChange("have_selection", false);
+    }
+}
+
+void RosegardenGUIView::slotSelectAllSegments()
+{
+    SegmentSelection segments;
+
+    InstrumentId instrument = 0;
+    bool haveInstrument = false;
+    bool multipleInstruments = false;
+
+    Composition &comp = getDocument()->getComposition();
+
+    for (Composition::iterator i = comp.begin(); i != comp.end(); ++i) {
+
+        InstrumentId myInstrument =
+            comp.getTrackById((*i)->getTrack())->getInstrument();
+
+        if (haveInstrument) {
+            if (myInstrument != instrument) {
+                multipleInstruments = true;
+            }
+        } else {
+            instrument = myInstrument;
+            haveInstrument = true;
+        }
+
+        segments.insert(*i);
+    }
+
+    // Send this signal to the GUI to activate the correct tool
+    // on the toolbar so that we have a SegmentSelector object
+    // to write the Segments into
+    //
+    if (!segments.empty()) {
+        emit activateTool(SegmentSelector::ToolName);
+    }
+
+    // Send the segment list even if it's empty as we
+    // use that to clear any current selection
+    //
+    m_trackEditor->getSegmentCanvas()->slotSelectSegments(segments);
+
+    // update the segment parameter box
+    m_segmentParameterBox->useSegments(segments);
+
+    // update the instrument parameter box
+    if (haveInstrument && !multipleInstruments) {
+        slotUpdateInstrumentParameterBox(instrument);
+    } else {
+        m_instrumentParameterBox->useInstrument(0);
+    }
+
+    //!!! similarly, how to set no selected track?
+    //comp.setSelectedTrack(trackId);
+
+    if (!segments.empty()) {
+        emit stateChange("have_selection", true);
+        if (!segments.hasNonAudioSegment()) {
+            emit stateChange("audio_segment_selected", true);
+        }
+    } else {
+        emit stateChange("have_selection", false);
+    }
+
+    // inform
+    //!!! inform what? is this signal actually used?
+    emit segmentsSelected(segments);
+}
+
+void RosegardenGUIView::slotUpdateInstrumentParameterBox(int id)
+{
+    Studio &studio = getDocument()->getStudio();
+    Instrument *instrument = studio.getInstrumentById(id);
+    Composition &comp = getDocument()->getComposition();
+
+    Track *track = comp.getTrackById(comp.getSelectedTrack());
+
+    // Reset the instrument
+    //
+    m_instrumentParameterBox->useInstrument(instrument);
+
+    // Then do this instrument/track fiddling
+    //
+    /*
+        if (track && instrument &&
+                instrument->getType() == Instrument::Audio)
+        {
+            // Set the mute status
+            m_instrumentParameterBox->setMute(track->isMuted());
+     
+            // Set the record track
+            m_instrumentParameterBox->setRecord(
+                        track->getId() == comp.getRecordTrack());
+     
+            // Set solo
+            m_instrumentParameterBox->setSolo(
+                    comp.isSolo() && (track->getId() == comp.getSelectedTrack()));
+        }
+    */
+    emit checkTrackAssignments();
+}
+
+void RosegardenGUIView::showVisuals(const MappedEvent *mE)
+{
+    double valueLeft = ((double)mE->getData1()) / 127.0;
+    double valueRight = ((double)mE->getData2()) / 127.0;
+
+    if (mE->getType() == MappedEvent::AudioLevel) {
+
+        // Send to the high sensitivity instrument parameter box
+        // (if any)
+        //
+        if (m_instrumentParameterBox->getSelectedInstrument() &&
+                mE->getInstrument() ==
+                m_instrumentParameterBox->getSelectedInstrument()->getId()) {
+            float dBleft = AudioLevel::fader_to_dB
+                           (mE->getData1(), 127, AudioLevel::LongFader);
+            float dBright = AudioLevel::fader_to_dB
+                            (mE->getData2(), 127, AudioLevel::LongFader);
+
+            m_instrumentParameterBox->setAudioMeter(dBleft, dBright,
+                                                    AudioLevel::DB_FLOOR,
+                                                    AudioLevel::DB_FLOOR);
+        }
+
+        // Don't always send all audio levels so we don't
+        // get vu meter flickering on track meters
+        //
+        if (valueLeft < 0.05 && valueRight < 0.05)
+            return ;
+
+    } else if (mE->getType() != MappedEvent::MidiNote)
+        return ;
+
+    m_trackEditor->getTrackButtons()->
+    slotSetMetersByInstrument((valueLeft + valueRight) / 2,
+                              mE->getInstrument());
+
+}
+
+void
+RosegardenGUIView::updateMeters(SequencerMapper *mapper)
+{
+    const int unknownState = 0, oldState = 1, newState = 2;
+
+    typedef std::map<InstrumentId, int> StateMap;
+    static StateMap states;
+    static StateMap recStates;
+
+    typedef std::map<InstrumentId, LevelInfo> LevelMap;
+    static LevelMap levels;
+    static LevelMap recLevels;
+
+    for (StateMap::iterator i = states.begin(); i != states.end(); ++i) {
+        i->second = unknownState;
+    }
+    for (StateMap::iterator i = recStates.begin(); i != recStates.end(); ++i) {
+        i->second = unknownState;
+    }
+
+    for (Composition::trackcontainer::iterator i =
+                getDocument()->getComposition().getTracks().begin();
+            i != getDocument()->getComposition().getTracks().end(); ++i) {
+
+        Track *track = i->second;
+        if (!track)
+            continue;
+
+        InstrumentId instrumentId = track->getInstrument();
+
+        if (states[instrumentId] == unknownState) {
+            bool isNew = mapper->getInstrumentLevel(instrumentId,
+                                                    levels[instrumentId]);
+            states[instrumentId] = (isNew ? newState : oldState);
+        }
+
+        if (recStates[instrumentId] == unknownState) {
+            bool isNew = mapper->getInstrumentRecordLevel(instrumentId,
+                         recLevels[instrumentId]);
+            recStates[instrumentId] = (isNew ? newState : oldState);
+        }
+
+        if (states[instrumentId] == oldState &&
+                recStates[instrumentId] == oldState)
+            continue;
+
+        Instrument *instrument =
+            getDocument()->getStudio().getInstrumentById(instrumentId);
+        if (!instrument)
+            continue;
+
+		// This records the level of this instrument, not neccessarily
+		//  caused by notes on this particular track.
+        LevelInfo &info = levels[instrumentId];
+        LevelInfo &recInfo = recLevels[instrumentId];
+
+        if (instrument->getType() == Instrument::Audio ||
+                instrument->getType() == Instrument::SoftSynth) {
+
+            float dBleft = AudioLevel::DB_FLOOR;
+            float dBright = AudioLevel::DB_FLOOR;
+            float recDBleft = AudioLevel::DB_FLOOR;
+            float recDBright = AudioLevel::DB_FLOOR;
+
+            bool toSet = false;
+
+            if (states[instrumentId] == newState &&
+                    (getDocument()->getSequenceManager()->getTransportStatus()
+                     != STOPPED)) {
+
+                if (info.level != 0 || info.levelRight != 0) {
+                    dBleft = AudioLevel::fader_to_dB
+                             (info.level, 127, AudioLevel::LongFader);
+                    dBright = AudioLevel::fader_to_dB
+                              (info.levelRight, 127, AudioLevel::LongFader);
+                }
+                toSet = true;
+                m_trackEditor->getTrackButtons()->slotSetTrackMeter
+                ((info.level + info.levelRight) / 254.0, track->getPosition());
+            }
+
+            if (recStates[instrumentId] == newState &&
+                    instrument->getType() == Instrument::Audio &&
+                    (getDocument()->getSequenceManager()->getTransportStatus()
+                     != PLAYING)) {
+
+                if (recInfo.level != 0 || recInfo.levelRight != 0) {
+                    recDBleft = AudioLevel::fader_to_dB
+                                (recInfo.level, 127, AudioLevel::LongFader);
+                    recDBright = AudioLevel::fader_to_dB
+                                 (recInfo.levelRight, 127, AudioLevel::LongFader);
+                }
+                toSet = true;
+            }
+
+            if (toSet &&
+                    m_instrumentParameterBox->getSelectedInstrument() &&
+                    instrument->getId() ==
+                    m_instrumentParameterBox->getSelectedInstrument()->getId()) {
+
+                m_instrumentParameterBox->setAudioMeter(dBleft, dBright,
+                                                        recDBleft, recDBright);
+            }
+
+        } else {
+			// Not audio or softsynth
+            if (info.level == 0)
+                continue;
+
+            if (getDocument()->getSequenceManager()->getTransportStatus()
+                    != STOPPED) {
+
+				// The information in 'info' is specific for this instrument, not
+				//  for this track.
+				//m_trackEditor->getTrackButtons()->slotSetTrackMeter
+				//	(info.level / 127.0, track->getPosition());
+                m_trackEditor->getTrackButtons()->slotSetMetersByInstrument
+                	(info.level / 127.0, instrumentId);
+            }
+        }
+    }
+
+    for (StateMap::iterator i = states.begin(); i != states.end(); ++i) {
+        if (i->second == newState) {
+            emit instrumentLevelsChanged(i->first, levels[i->first]);
+        }
+    }
+}
+
+void
+RosegardenGUIView::updateMonitorMeters(SequencerMapper *mapper)
+{
+    Instrument *instrument =
+        m_instrumentParameterBox->getSelectedInstrument();
+    if (!instrument ||
+            (instrument->getType() != Instrument::Audio))
+        return ;
+
+    LevelInfo level;
+    if (!mapper->getInstrumentRecordLevel(instrument->getId(), level))
+        return ;
+
+    float dBleft = AudioLevel::fader_to_dB
+                   (level.level, 127, AudioLevel::LongFader);
+    float dBright = AudioLevel::fader_to_dB
+                    (level.levelRight, 127, AudioLevel::LongFader);
+
+    m_instrumentParameterBox->setAudioMeter
+    (AudioLevel::DB_FLOOR, AudioLevel::DB_FLOOR,
+     dBleft, dBright);
+}
+
+void
+RosegardenGUIView::slotSelectedSegments(const SegmentSelection &segments)
+{
+    // update the segment parameter box
+    m_segmentParameterBox->useSegments(segments);
+
+    if (!segments.empty()) {
+        emit stateChange("have_selection", true);
+        if (!segments.hasNonAudioSegment())
+            emit stateChange("audio_segment_selected", true);
+    } else {
+        emit stateChange("have_selection", false);
+    }
+
+    emit segmentsSelected(segments);
+}
+
+void RosegardenGUIView::slotShowRulers(bool v)
+{
+    if (v) {
+        m_trackEditor->getTopStandardRuler()->getLoopRuler()->show();
+        m_trackEditor->getBottomStandardRuler()->getLoopRuler()->show();
+    } else {
+        m_trackEditor->getTopStandardRuler()->getLoopRuler()->hide();
+        m_trackEditor->getBottomStandardRuler()->getLoopRuler()->hide();
+    }
+}
+
+void RosegardenGUIView::slotShowTempoRuler(bool v)
+{
+    if (v) {
+        m_trackEditor->getTempoRuler()->show();
+    } else {
+        m_trackEditor->getTempoRuler()->hide();
+    }
+}
+
+void RosegardenGUIView::slotShowChordNameRuler(bool v)
+{
+    if (v) {
+        m_trackEditor->getChordNameRuler()->setStudio(&getDocument()->getStudio());
+        m_trackEditor->getChordNameRuler()->show();
+    } else {
+        m_trackEditor->getChordNameRuler()->hide();
+    }
+}
+
+void RosegardenGUIView::slotShowPreviews(bool v)
+{
+    m_trackEditor->getSegmentCanvas()->setShowPreviews(v);
+    m_trackEditor->getSegmentCanvas()->slotUpdateSegmentsDrawBuffer();
+}
+
+void RosegardenGUIView::slotShowSegmentLabels(bool v)
+{
+    m_trackEditor->getSegmentCanvas()->setShowSegmentLabels(v);
+    m_trackEditor->getSegmentCanvas()->slotUpdateSegmentsDrawBuffer();
+}
+
+void RosegardenGUIView::slotAddTracks(unsigned int nbTracks,
+                                      InstrumentId id, int pos)
+{
+    RG_DEBUG << "RosegardenGUIView::slotAddTracks(" << nbTracks << ", " << pos << ")" << endl;
+    m_trackEditor->slotAddTracks(nbTracks, id, pos);
+}
+
+void RosegardenGUIView::slotDeleteTracks(
+    std::vector<TrackId> tracks)
+{
+    RG_DEBUG << "RosegardenGUIView::slotDeleteTracks - "
+    << "deleting " << tracks.size() << " tracks"
+    << endl;
+
+    m_trackEditor->slotDeleteTracks(tracks);
+}
+
+MultiViewCommandHistory*
+RosegardenGUIView::getCommandHistory()
+{
+    return getDocument()->getCommandHistory();
+}
+
+void
+RosegardenGUIView::slotAddCommandToHistory(KCommand *command)
+{
+    getCommandHistory()->addCommand(command);
+}
+
+void
+RosegardenGUIView::slotChangeInstrumentLabel(InstrumentId id,
+        QString label)
+{
+    m_trackEditor->getTrackButtons()->changeInstrumentLabel(id, label);
+}
+
+void
+RosegardenGUIView::slotChangeTrackLabel(TrackId id,
+                                        QString label)
+{
+    m_trackEditor->getTrackButtons()->changeTrackLabel(id, label);
+}
+
+void
+RosegardenGUIView::slotAddAudioSegment(AudioFileId audioId,
+                                       TrackId trackId,
+                                       timeT position,
+                                       const RealTime &startTime,
+                                       const RealTime &endTime)
+{
+    AudioSegmentInsertCommand *command =
+        new AudioSegmentInsertCommand(getDocument(),
+                                      trackId,
+                                      position,
+                                      audioId,
+                                      startTime,
+                                      endTime);
+    slotAddCommandToHistory(command);
+
+    Segment *newSegment = command->getNewSegment();
+    if (newSegment) {
+        SegmentSelection selection;
+        selection.insert(newSegment);
+        slotPropagateSegmentSelection(selection);
+        emit segmentsSelected(selection);
+    }
+}
+
+void
+RosegardenGUIView::slotAddAudioSegmentCurrentPosition(AudioFileId audioFileId,
+        const RealTime &startTime,
+        const RealTime &endTime)
+{
+    Composition &comp = getDocument()->getComposition();
+
+    AudioSegmentInsertCommand *command =
+        new AudioSegmentInsertCommand(getDocument(),
+                                      comp.getSelectedTrack(),
+                                      comp.getPosition(),
+                                      audioFileId,
+                                      startTime,
+                                      endTime);
+    slotAddCommandToHistory(command);
+
+    Segment *newSegment = command->getNewSegment();
+    if (newSegment) {
+        SegmentSelection selection;
+        selection.insert(newSegment);
+        slotPropagateSegmentSelection(selection);
+        emit segmentsSelected(selection);
+    }
+}
+
+void
+RosegardenGUIView::slotAddAudioSegmentDefaultPosition(AudioFileId audioFileId,
+        const RealTime &startTime,
+        const RealTime &endTime)
+{
+    // Add at current track if it's an audio track, otherwise at first
+    // empty audio track if there is one, otherwise at first audio track.
+    // This behaviour should be of no interest to proficient users (who
+    // should have selected the right track already, or be using drag-
+    // and-drop) but it should save beginners from inserting an audio
+    // segment and being quite unable to work out why it won't play
+
+    Composition &comp = getDocument()->getComposition();
+    Studio &studio = getDocument()->getStudio();
+
+    TrackId currentTrackId = comp.getSelectedTrack();
+    Track *track = comp.getTrackById(currentTrackId);
+
+    if (track) {
+        InstrumentId ii = track->getInstrument();
+        Instrument *instrument = studio.getInstrumentById(ii);
+
+        if (instrument &&
+                instrument->getType() == Instrument::Audio) {
+            slotAddAudioSegment(audioFileId, currentTrackId,
+                                comp.getPosition(), startTime, endTime);
+            return ;
+        }
+    }
+
+    // current track is not an audio track, find a more suitable one
+
+    TrackId bestSoFar = currentTrackId;
+
+    for (Composition::trackcontainer::const_iterator
+            ti = comp.getTracks().begin();
+            ti != comp.getTracks().end(); ++ti) {
+
+        InstrumentId ii = ti->second->getInstrument();
+        Instrument *instrument = studio.getInstrumentById(ii);
+
+        if (instrument &&
+                instrument->getType() == Instrument::Audio) {
+
+            if (bestSoFar == currentTrackId)
+                bestSoFar = ti->first;
+            bool haveSegment = false;
+
+            for (Composition::segmentcontainer::const_iterator si =
+                        comp.getSegments().begin();
+                    si != comp.getSegments().end(); ++si) {
+                if ((*si)->getTrack() == ti->first) {
+                    // there's a segment on this track
+                    haveSegment = true;
+                    break;
+                }
+            }
+
+            if (!haveSegment) { // perfect
+                slotAddAudioSegment(audioFileId, ti->first,
+                                    comp.getPosition(), startTime, endTime);
+                return ;
+            }
+        }
+    }
+
+    slotAddAudioSegment(audioFileId, bestSoFar,
+                        comp.getPosition(), startTime, endTime);
+    return ;
+}
+
+void
+RosegardenGUIView::slotDroppedNewAudio(QString audioDesc)
+{
+    QTextIStream s(&audioDesc);
+
+    QString url;
+    int trackId;
+    timeT time;
+    url = s.readLine();
+    s >> trackId;
+    s >> time;
+
+    std::cerr << "RosegardenGUIView::slotDroppedNewAudio: url " << url << ", trackId " << trackId << ", time " << time << std::endl;
+
+    RosegardenGUIApp *app = RosegardenGUIApp::self();
+    AudioFileManager &aFM = getDocument()->getAudioFileManager();
+
+    AudioFileId audioFileId = 0;
+
+    int sampleRate = 0;
+    if (getDocument()->getSequenceManager()) {
+        sampleRate = getDocument()->getSequenceManager()->getSampleRate();
+    }
+
+    KURL kurl(url);
+    if (!kurl.isLocalFile()) {
+        if (!RosegardenGUIApp::self()->testAudioPath("importing a remote audio file")) return;
+    } else if (aFM.fileNeedsConversion(qstrtostr(kurl.path()), sampleRate)) {
+	if (!RosegardenGUIApp::self()->testAudioPath("importing an audio file that needs to be converted or resampled")) return;
+    }
+
+    ProgressDialog progressDlg(i18n("Adding audio file..."),
+                               100,
+                               this);
+
+    CurrentProgressDialog::set(&progressDlg);
+    progressDlg.progressBar()->hide();
+    progressDlg.show();
+
+    // Connect the progress dialog
+    //
+    connect(&aFM, SIGNAL(setProgress(int)),
+            progressDlg.progressBar(), SLOT(setValue(int)));
+    connect(&aFM, SIGNAL(setOperationName(QString)),
+            &progressDlg, SLOT(slotSetOperationName(QString)));
+    connect(&progressDlg, SIGNAL(cancelClicked()),
+            &aFM, SLOT(slotStopImport()));
+
+    try {
+        audioFileId = aFM.importURL(kurl, sampleRate);
+    } catch (AudioFileManager::BadAudioPathException e) {
+        CurrentProgressDialog::freeze();
+        QString errorString = i18n("Can't add dropped file. ") + strtoqstr(e.getMessage());
+        KMessageBox::sorry(this, errorString);
+        return ;
+    } catch (SoundFile::BadSoundFileException e) {
+        CurrentProgressDialog::freeze();
+        QString errorString = i18n("Can't add dropped file. ") + strtoqstr(e.getMessage());
+        KMessageBox::sorry(this, errorString);
+        return ;
+    }
+             
+    disconnect(&progressDlg, SIGNAL(cancelClicked()),
+               &aFM, SLOT(slotStopImport()));
+    connect(&progressDlg, SIGNAL(cancelClicked()),
+            &aFM, SLOT(slotStopPreview()));
+    progressDlg.progressBar()->show();
+    progressDlg.slotSetOperationName(i18n("Generating audio preview..."));
+
+    try {
+        aFM.generatePreview(audioFileId);
+    } catch (Exception e) {
+        CurrentProgressDialog::freeze();
+        QString message = strtoqstr(e.getMessage()) + "\n\n" +
+                          i18n("Try copying this file to a directory where you have write permission and re-add it");
+        KMessageBox::information(this, message);
+        //return false;
+    }
+
+    disconnect(&progressDlg, SIGNAL(cancelClicked()),
+               &aFM, SLOT(slotStopPreview()));
+
+    // add the file at the sequencer
+    emit addAudioFile(audioFileId);
+
+    // Now fetch file details
+    //
+    AudioFile *aF = aFM.getAudioFile(audioFileId);
+
+    if (aF) {
+        slotAddAudioSegment(audioFileId, trackId, time,
+                            RealTime(0, 0), aF->getLength());
+
+        RG_DEBUG << "RosegardenGUIView::slotDroppedNewAudio("
+        << "file = " << url
+        << ", trackid = " << trackId
+        << ", time = " << time << endl;
+    }
+}
+
+void
+RosegardenGUIView::slotDroppedAudio(QString audioDesc)
+{
+    QTextIStream s(&audioDesc);
+
+    AudioFileId audioFileId;
+    TrackId trackId;
+    timeT position;
+    RealTime startTime, endTime;
+
+    // read the audio info
+    s >> audioFileId;
+    s >> trackId;
+    s >> position;
+    s >> startTime.sec;
+    s >> startTime.nsec;
+    s >> endTime.sec;
+    s >> endTime.nsec;
+
+    RG_DEBUG << "RosegardenGUIView::slotDroppedAudio("
+    //<< audioDesc
+    << ") : audioFileId = " << audioFileId
+    << " - trackId = " << trackId
+    << " - position = " << position
+    << " - startTime.sec = " << startTime.sec
+    << " - startTime.nsec = " << startTime.nsec
+    << " - endTime.sec = " << endTime.sec
+    << " - endTime.nsec = " << endTime.nsec
+    << endl;
+
+    slotAddAudioSegment(audioFileId, trackId, position, startTime, endTime);
+}
+
+void
+RosegardenGUIView::slotSetMuteButton(TrackId track, bool value)
+{
+    RG_DEBUG << "RosegardenGUIView::slotSetMuteButton - track id = " << track
+    << ", value = " << value << endl;
+
+    m_trackEditor->getTrackButtons()->setMuteButton(track, value);
+    Track *trackObj = getDocument()->
+                      getComposition().getTrackById(track);
+    /*
+        // to fix 739544
+        if (m_instrumentParameterBox->getSelectedInstrument() &&
+            m_instrumentParameterBox->getSelectedInstrument()->getId() ==
+            trackObj->getInstrument())
+        {
+            m_instrumentParameterBox->setMute(value);
+        }
+    */ 
+    // set the value in the composition
+    trackObj->setMuted(value);
+
+    getDocument()->slotDocumentModified(); // set the modification flag
+
+}
+
+void
+RosegardenGUIView::slotSetMute(InstrumentId id, bool value)
+{
+    RG_DEBUG << "RosegardenGUIView::slotSetMute - "
+    << "id = " << id
+    << ",value = " << value << endl;
+
+    Composition &comp = getDocument()->getComposition();
+    Composition::trackcontainer &tracks = comp.getTracks();
+    Composition::trackiterator it;
+
+    for (it = tracks.begin(); it != tracks.end(); ++it) {
+        if ((*it).second->getInstrument() == id)
+            slotSetMuteButton((*it).second->getId(), value);
+    }
+
+}
+
+void
+RosegardenGUIView::slotSetRecord(InstrumentId id, bool value)
+{
+    RG_DEBUG << "RosegardenGUIView::slotSetRecord - "
+    << "id = " << id
+    << ",value = " << value << endl;
+    /*
+        // IPB
+        //
+        m_instrumentParameterBox->setRecord(value);
+    */
+    Composition &comp = getDocument()->getComposition();
+    Composition::trackcontainer &tracks = comp.getTracks();
+    Composition::trackiterator it;
+#ifdef NOT_DEFINED
+
+    for (it = tracks.begin(); it != tracks.end(); ++it) {
+        if (comp.getSelectedTrack() == (*it).second->getId()) {
+            //!!! MTR            m_trackEditor->getTrackButtons()->
+            //                setRecordTrack((*it).second->getPosition());
+            //!!! MTR is this needed? I think probably not
+            slotUpdateInstrumentParameterBox((*it).second->getInstrument());
+        }
+    }
+#endif
+    Studio &studio = getDocument()->getStudio();
+    Instrument *instr = studio.getInstrumentById(id);
+}
+
+void
+RosegardenGUIView::slotSetSolo(InstrumentId id, bool value)
+{
+    RG_DEBUG << "RosegardenGUIView::slotSetSolo - "
+    << "id = " << id
+    << ",value = " << value << endl;
+
+    emit toggleSolo(value);
+}
+
+void
+RosegardenGUIView::slotUpdateRecordingSegment(Segment *segment,
+        timeT )
+{
+    // We're only interested in this on the first call per recording segment,
+    // when we possibly create a view for it
+    static Segment *lastRecordingSegment = 0;
+
+    if (segment == lastRecordingSegment)
+        return ;
+    lastRecordingSegment = segment;
+
+    KConfig* config = kapp->config();
+    config->setGroup(GeneralOptionsConfigGroup);
+
+    int tracking = config->readUnsignedNumEntry("recordtracking", 0);
+    if (tracking != 1)
+        return ;
+
+    RG_DEBUG << "RosegardenGUIView::slotUpdateRecordingSegment: segment is " << segment << ", lastRecordingSegment is " << lastRecordingSegment << ", opening a new view" << endl;
+
+    std::vector<Segment *> segments;
+    segments.push_back(segment);
+
+    NotationView *view = createNotationView(segments);
+    if (!view)
+        return ;
+
+    /* signal no longer exists
+        QObject::connect
+    	(getDocument(), SIGNAL(recordingSegmentUpdated(Segment *, timeT)),
+    	 view, SLOT(slotUpdateRecordingSegment(Segment *, timeT)));
+    */
+
+    view->show();
+}
+
+void
+RosegardenGUIView::slotSynchroniseWithComposition()
+{
+    // Track buttons
+    //
+    m_trackEditor->getTrackButtons()->slotSynchroniseWithComposition();
+
+    // Update all IPBs
+    //
+    Composition &comp = getDocument()->getComposition();
+    Track *track = comp.getTrackById(comp.getSelectedTrack());
+    slotUpdateInstrumentParameterBox(track->getInstrument());
+
+    m_instrumentParameterBox->slotUpdateAllBoxes();
+}
+
+void
+RosegardenGUIView::windowActivationChange(bool)
+{
+    if (isActiveWindow()) {
+        slotActiveMainWindowChanged(this);
+    }
+}
+
+void
+RosegardenGUIView::slotActiveMainWindowChanged(const QWidget *w)
+{
+    m_lastActiveMainWindow = w;
+}
+
+void
+RosegardenGUIView::slotActiveMainWindowChanged()
+{
+    const QWidget *w = dynamic_cast<const QWidget *>(sender());
+    if (w)
+        slotActiveMainWindowChanged(w);
+}
+
+void
+RosegardenGUIView::slotControllerDeviceEventReceived(MappedEvent *e)
+{
+    RG_DEBUG << "Controller device event received - send to " << (void *)m_lastActiveMainWindow << " (I am " << this << ")" << endl;
+
+    //!!! So, what _should_ we do with these?
+
+    // -- external controller that sends e.g. volume control for each
+    // of a number of channels -> if mixer present, use control to adjust
+    // tracks on mixer
+
+    // -- external controller that sends e.g. separate controllers on
+    // the same channel for adjusting various parameters -> if IPB
+    // visible, adjust it.  Should we use the channel to select the
+    // track? maybe as an option
+
+    // do we actually need the last active main window for either of
+    // these? -- yes, to determine whether to send to mixer or to IPB
+    // in the first place.  Send to audio mixer if active, midi mixer
+    // if active, plugin dialog if active, otherwise keep it for
+    // ourselves for the IPB.  But, we'll do that by having the edit
+    // views pass it back to us.
+
+    // -- then we need to send back out to device.
+
+    //!!! special cases: controller 81 received by any window ->
+    // select window 0->main, 1->audio mix, 2->midi mix
+
+    //!!! controller 82 received by main window -> select track
+
+    //!!! these obviously should be configurable
+
+    if (e->getType() == MappedEvent::MidiController) {
+
+        if (e->getData1() == 81) {
+
+            // select window
+            int window = e->getData2();
+
+            if (window < 10) { // me
+
+                show();
+                raise();
+                setActiveWindow();
+
+            } else if (window < 20) {
+
+                RosegardenGUIApp::self()->slotOpenAudioMixer();
+
+            } else if (window < 30) {
+
+                RosegardenGUIApp::self()->slotOpenMidiMixer();
+            }
+        }
+    }
+
+    emit controllerDeviceEventReceived(e, m_lastActiveMainWindow);
+}
+
+void
+RosegardenGUIView::slotControllerDeviceEventReceived(MappedEvent *e, const void *preferredCustomer)
+{
+    if (preferredCustomer != this)
+        return ;
+    RG_DEBUG << "RosegardenGUIView::slotControllerDeviceEventReceived: this one's for me" << endl;
+    raise();
+
+    RG_DEBUG << "Event is type: " << int(e->getType()) << ", channel " << int(e->getRecordedChannel()) << ", data1 " << int(e->getData1()) << ", data2 " << int(e->getData2()) << endl;
+
+    Composition &comp = getDocument()->getComposition();
+    Studio &studio = getDocument()->getStudio();
+
+    TrackId currentTrackId = comp.getSelectedTrack();
+    Track *track = comp.getTrackById(currentTrackId);
+
+    // If the event is a control change on channel n, then (if
+    // follow-channel is on) switch to the nth track of the same type
+    // as the current track -- or the first track of the given
+    // channel?, and set the control appropriately.  Any controls in
+    // IPB are supported for a MIDI device plus program and bank; only
+    // volume and pan are supported for audio/synth devices.
+    //!!! complete this
+
+    if (e->getType() != MappedEvent::MidiController) {
+
+        if (e->getType() == MappedEvent::MidiProgramChange) {
+            int program = e->getData1();
+            if (!track)
+                return ;
+            InstrumentId ii = track->getInstrument();
+            Instrument *instrument = studio.getInstrumentById(ii);
+            if (!instrument)
+                return ;
+            instrument->setProgramChange(program);
+            emit instrumentParametersChanged(ii);
+        }
+        return ;
+    }
+
+    unsigned int channel = e->getRecordedChannel();
+    MidiByte controller = e->getData1();
+    MidiByte value = e->getData2();
+
+    if (controller == 82) { //!!! magic select-track controller
+        int tracks = comp.getNbTracks();
+        Track *track = comp.getTrackByPosition(value * tracks / 127);
+        if (track) {
+            slotSelectTrackSegments(track->getId());
+        }
+        return ;
+    }
+
+    if (!track)
+        return ;
+
+    InstrumentId ii = track->getInstrument();
+    Instrument *instrument = studio.getInstrumentById(ii);
+
+    if (!instrument)
+        return ;
+
+    switch (instrument->getType()) {
+
+    case Instrument::Midi: {
+            MidiDevice *md = dynamic_cast<MidiDevice *>
+                             (instrument->getDevice());
+            if (!md) {
+                std::cerr << "WARNING: MIDI instrument has no MIDI device in slotControllerDeviceEventReceived" << std::endl;
+                return ;
+            }
+
+            //!!! we need a central clearing house for these changes,
+            // for a proper mvc structure.  reqd for automation post-1.2.
+            // in the mean time this duplicates much of
+            // MIDIInstrumentParameterPanel::slotControllerChanged etc
+
+            switch (controller) {
+
+            case MIDI_CONTROLLER_VOLUME:
+                RG_DEBUG << "Setting volume for instrument " << instrument->getId() << " to " << value << endl;
+                instrument->setVolume(value);
+                break;
+
+            case MIDI_CONTROLLER_PAN:
+                RG_DEBUG << "Setting pan for instrument " << instrument->getId() << " to " << value << endl;
+                instrument->setPan(value);
+                break;
+
+            default: {
+                    ControlList cl = md->getIPBControlParameters();
+                    for (ControlList::const_iterator i = cl.begin();
+                            i != cl.end(); ++i) {
+                        if ((*i).getControllerValue() == controller) {
+                            RG_DEBUG << "Setting controller " << controller << " for instrument " << instrument->getId() << " to " << value << endl;
+                            instrument->setControllerValue(controller, value);
+                            break;
+                        }
+                    }
+                    break;
+                }
+            }
+
+            break;
+        }
+
+    case Instrument::SoftSynth:
+    case Instrument::Audio:
+
+        switch (controller) {
+
+        case MIDI_CONTROLLER_VOLUME:
+            RG_DEBUG << "Setting volume for instrument " << instrument->getId() << " to " << value << endl;
+            instrument->setLevel(AudioLevel::fader_to_dB
+                                 (value, 127, AudioLevel::ShortFader));
+            break;
+
+        case MIDI_CONTROLLER_PAN:
+            RG_DEBUG << "Setting pan for instrument " << instrument->getId() << " to " << value << endl;
+            instrument->setPan(MidiByte((value / 64.0) * 100.0 + 0.01));
+            break;
+
+        default:
+            break;
+        }
+
+        break;
+    }
+
+    emit instrumentParametersChanged(instrument->getId());
+
+    //!!! send out updates via MIDI
+}
+
+void
+RosegardenGUIView::initChordNameRuler()
+{
+    getTrackEditor()->getChordNameRuler()->setReady();
+}
+
+EventView *
+RosegardenGUIView::createEventView(std::vector<Segment *> segmentsToEdit)
+{
+    EventView *eventView = new EventView(getDocument(),
+                                         segmentsToEdit,
+                                         this);
+
+    connect(eventView, SIGNAL(windowActivated()),
+        this, SLOT(slotActiveMainWindowChanged()));
+
+    connect(eventView, SIGNAL(selectTrack(int)),
+            this, SLOT(slotSelectTrackSegments(int)));
+
+    connect(eventView, SIGNAL(saveFile()),
+        RosegardenGUIApp::self(), SLOT(slotFileSave()));
+
+    connect(eventView, SIGNAL(openInNotation(std::vector<Segment *>)),
+        this, SLOT(slotEditSegmentsNotation(std::vector<Segment *>)));
+    connect(eventView, SIGNAL(openInMatrix(std::vector<Segment *>)),
+        this, SLOT(slotEditSegmentsMatrix(std::vector<Segment *>)));
+    connect(eventView, SIGNAL(openInPercussionMatrix(std::vector<Segment *>)),
+        this, SLOT(slotEditSegmentsPercussionMatrix(std::vector<Segment *>)));
+    connect(eventView, SIGNAL(openInEventList(std::vector<Segment *>)),
+        this, SLOT(slotEditSegmentsEventList(std::vector<Segment *>)));
+    connect(eventView, SIGNAL(editTriggerSegment(int)),
+        this, SLOT(slotEditTriggerSegment(int)));
+    connect(this, SIGNAL(compositionStateUpdate()),
+        eventView, SLOT(slotCompositionStateUpdate()));
+    connect(RosegardenGUIApp::self(), SIGNAL(compositionStateUpdate()),
+        eventView, SLOT(slotCompositionStateUpdate()));
+    connect(eventView, SIGNAL(toggleSolo(bool)),
+            RosegardenGUIApp::self(), SLOT(slotToggleSolo(bool)));
+
+    // create keyboard accelerators on view
+    //
+    RosegardenGUIApp *par = dynamic_cast<RosegardenGUIApp*>(parent());
+
+    if (par) {
+        par->plugAccelerators(eventView, eventView->getAccelerators());
+    }
+
+    return eventView;
+}
+
+}
+#include "RosegardenGUIView.moc"