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, 239 insertions, 0 deletions

diff --git a/src/gui/editors/segment/segmentcanvas/CompositionModelImpl.h b/src/gui/editors/segment/segmentcanvas/CompositionModelImpl.h
new file mode 100644
index 0000000..6e1c9d6
--- /dev/null
+++ b/src/gui/editors/segment/segmentcanvas/CompositionModelImpl.h
@@ -0,0 +1,239 @@
+
+/* -*- 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   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <richard.bown@ferventsoftware.com>
+
+    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.
+*/
+
+#ifndef _RG_COMPOSITIONMODELIMPL_H_
+#define _RG_COMPOSITIONMODELIMPL_H_
+
+#include "base/Selection.h"
+#include "base/SnapGrid.h"
+#include "CompositionModel.h"
+#include "CompositionRect.h"
+#include <map>
+#include "SegmentOrderer.h"
+#include <set>
+#include <qcolor.h>
+#include <qpoint.h>
+#include <qptrdict.h>
+#include <qrect.h>
+#include <vector>
+#include "base/Event.h"
+
+
+class RectRanges;
+class CompositionItem;
+class AudioPreviewDrawData;
+class AudioPreviewData;
+
+
+namespace Rosegarden
+{
+
+class Studio;
+class Segment;
+class RulerScale;
+class Event;
+class Composition;
+class AudioPreviewUpdater;
+class AudioPreviewThread;
+
+
+class CompositionModelImpl : public CompositionModel
+{
+    Q_OBJECT
+public:
+
+    CompositionModelImpl(Composition& compo,
+                         Studio& studio,
+                         RulerScale *rulerScale,
+                         int vStep);
+
+    virtual ~CompositionModelImpl();
+    
+    virtual unsigned int getNbRows();
+    virtual const rectcontainer& getRectanglesIn(const QRect& rect,
+                                                 RectRanges* notationRects, AudioPreviewDrawData* audioRects);
+    virtual heightlist getTrackDividersIn(const QRect& rect);
+    virtual itemcontainer getItemsAt (const QPoint&);
+    virtual timeT getRepeatTimeAt (const QPoint&, const CompositionItem&);
+
+    virtual SnapGrid& grid() { return m_grid; }
+
+    virtual void setPointerPos(int xPos);
+    virtual void setSelected(const CompositionItem&, bool selected = true);
+    virtual bool isSelected(const CompositionItem&) const;
+    virtual void setSelected(const itemcontainer&);
+    virtual void clearSelected();
+    virtual bool haveSelection() const { return !m_selectedSegments.empty(); }
+    virtual bool haveMultipleSelection() const { return m_selectedSegments.size() > 1; }
+    virtual void signalSelection();
+    virtual void setSelectionRect(const QRect&);
+    virtual void finalizeSelectionRect();
+    virtual QRect getSelectionContentsRect();
+    virtual void signalContentChange();
+
+    virtual void addRecordingItem(const CompositionItem&);
+    virtual void removeRecordingItem(const CompositionItem &);
+    virtual void clearRecordingItems();
+    virtual bool haveRecordingItems() { return m_recordingSegments.size() > 0; }
+
+    virtual void startChange(const CompositionItem&, ChangeType change);
+    virtual void startChangeSelection(ChangeType change);
+    virtual itemcontainer& getChangingItems() { return m_changingItems; }
+    virtual void endChange();
+    virtual ChangeType getChangeType() { return m_changeType; }
+
+    virtual void setLength(int width);
+    virtual int  getLength();
+
+    void setAudioPreviewThread(AudioPreviewThread *thread);
+    AudioPreviewThread* getAudioPreviewThread() { return m_audioPreviewThread; }
+
+    void clearPreviewCache();
+    void clearSegmentRectsCache(bool clearPreviews = false) { clearInCache(0, clearPreviews); }
+
+    rectlist*            makeNotationPreviewDataCache(const Segment *s);
+    AudioPreviewData*    makeAudioPreviewDataCache(const Segment *s);
+
+    CompositionRect computeSegmentRect(const Segment&, bool computeZ = false);
+    QColor          computeSegmentPreviewColor(const Segment*);
+    QPoint          computeSegmentOrigin(const Segment&);
+    void            computeRepeatMarks(CompositionItem&);
+
+    SegmentSelection getSelectedSegments() { return m_selectedSegments; }
+    Composition&     getComposition()      { return m_composition; }
+    Studio&          getStudio()           { return m_studio; }
+
+
+    // CompositionObserver
+    virtual void segmentAdded(const Composition *, Segment *);
+    virtual void segmentRemoved(const Composition *, Segment *);
+    virtual void segmentRepeatChanged(const Composition *, Segment *, bool);
+    virtual void segmentStartChanged(const Composition *, Segment *, timeT);
+    virtual void segmentEndMarkerChanged(const Composition *, Segment *, bool);
+    virtual void segmentTrackChanged(const Composition *, Segment *, TrackId);
+    virtual void endMarkerTimeChanged(const Composition *, bool /*shorten*/);
+
+    // SegmentObserver
+    virtual void eventAdded(const Segment *, Event *);
+    virtual void eventRemoved(const Segment *, Event *);
+    virtual void appearanceChanged(const Segment *);
+    virtual void endMarkerTimeChanged(const Segment *, bool /*shorten*/);
+    virtual void segmentDeleted(const Segment*) { /* nothing to do - handled by CompositionObserver::segmentRemoved() */ };
+
+signals:
+    void selectedSegments(const SegmentSelection &);
+    void needSizeUpdate();
+
+public slots:
+    void slotAudioFileFinalized(Segment*);
+    void slotInstrumentParametersChanged(InstrumentId);
+
+protected slots:
+    void slotAudioPreviewComplete(AudioPreviewUpdater*);
+
+protected:
+    bool setTrackHeights(Segment *changed = 0); // true if something changed
+
+    void setSelected(const Segment*, bool selected = true);
+    bool isSelected(const Segment*) const;
+    bool isTmpSelected(const Segment*) const;
+    bool wasTmpSelected(const Segment*) const;
+    bool isMoving(const Segment*) const;
+    bool isRecording(const Segment*) const;
+    
+    void computeRepeatMarks(CompositionRect& sr, const Segment* s);
+        unsigned int computeZForSegment(const Segment* s);
+        
+        // segment preview stuff
+
+    void updatePreviewCacheForNotationSegment(const Segment* s, rectlist*);
+    void updatePreviewCacheForAudioSegment(const Segment* s, AudioPreviewData*);
+    rectlist* getNotationPreviewData(const Segment* s);
+    AudioPreviewData* getAudioPreviewData(const Segment* s);
+    PixmapArray getAudioPreviewPixmap(const Segment* s);
+    QRect postProcessAudioPreview(AudioPreviewData*, const Segment*);
+
+    void makePreviewCache(const Segment* s);
+    void removePreviewCache(const Segment* s);
+    void makeNotationPreviewRects(RectRanges* npData, QPoint basePoint, const Segment*, const QRect&);
+    void makeNotationPreviewRectsMovingSegment(RectRanges* npData, QPoint basePoint, const Segment*,
+                                               const QRect&);
+    void makeAudioPreviewRects(AudioPreviewDrawData* apRects, const Segment*,
+                               const CompositionRect& segRect, const QRect& clipRect);
+
+    void clearInCache(const Segment*, bool clearPreviewCache = false);
+    void putInCache(const Segment*, const CompositionRect&);
+    const CompositionRect& getFromCache(const Segment*, timeT& endTime);
+    bool isCachedRectCurrent(const Segment& s, const CompositionRect& r,
+                             QPoint segmentOrigin, timeT segmentEndTime);
+
+    //--------------- Data members ---------------------------------
+    Composition&     m_composition;
+    Studio&          m_studio;
+    SnapGrid         m_grid;
+    SegmentSelection m_selectedSegments;
+    SegmentSelection m_tmpSelectedSegments;
+    SegmentSelection m_previousTmpSelectedSegments;
+
+    timeT            m_pointerTimePos;
+
+    typedef std::set<Segment *> recordingsegmentset;
+    recordingsegmentset          m_recordingSegments;
+
+    typedef std::vector<CompositionItem> itemgc;
+
+    AudioPreviewThread*          m_audioPreviewThread;
+
+    typedef QPtrDict<rectlist> NotationPreviewDataCache;
+    typedef QPtrDict<AudioPreviewData>    AudioPreviewDataCache;
+
+    NotationPreviewDataCache     m_notationPreviewDataCache;
+    AudioPreviewDataCache        m_audioPreviewDataCache;
+
+    rectcontainer m_res;
+    itemcontainer m_changingItems;
+    ChangeType    m_changeType;
+    itemgc m_itemGC;
+
+    QRect m_selectionRect;
+    QRect m_previousSelectionUpdateRect;
+
+    std::map<const Segment*, CompositionRect> m_segmentRectMap;
+    std::map<const Segment*, timeT> m_segmentEndTimeMap;
+    std::map<const Segment*, PixmapArray> m_audioSegmentPreviewMap;
+    std::map<TrackId, int> m_trackHeights;
+    
+    typedef std::map<const Segment*, AudioPreviewUpdater *>
+        AudioPreviewUpdaterMap;
+    AudioPreviewUpdaterMap m_audioPreviewUpdaterMap;
+    
+    SegmentOrderer m_segmentOrderer;
+};
+
+
+
+}
+
+#endif