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145 lines
3.8 KiB
145 lines
3.8 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#ifndef _RG_CHORDNAMERULER_H_
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#define _RG_CHORDNAMERULER_H_
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#include "base/PropertyName.h"
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#include <map>
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#include <tqfont.h>
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#include <tqfontmetrics.h>
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#include <tqsize.h>
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#include <tqwidget.h>
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#include <vector>
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#include "base/Event.h"
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class TQPaintEvent;
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namespace Rosegarden
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{
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class Studio;
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class Segment;
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class RulerScale;
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class RosegardenGUIDoc;
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class Composition;
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/**
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* ChordNameRuler is a widget that shows a strip of text strings
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* describing the chords in a composition.
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*/
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class ChordNameRuler : public TQWidget
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{
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TQ_OBJECT
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public:
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/**
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* Construct a ChordNameRuler that displays the chords in the
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* given Composition at positions calculated by the given
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* RulerScale. Be aware that it will not be refreshed until
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* setReady is called (because the first refresh is expensive).
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*/
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ChordNameRuler(RulerScale *rulerScale,
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RosegardenGUIDoc *doc,
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double xorigin = 0.0,
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int height = 0,
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TQWidget* parent = 0,
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const char *name = 0);
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/**
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* Construct a ChordNameRuler that displays the chords in the
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* given Segments at positions calculated by the given
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* RulerScale. Be aware that it will not be refreshed until
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* setReady is called (because the first refresh is expensive).
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*/
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ChordNameRuler(RulerScale *rulerScale,
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RosegardenGUIDoc *doc,
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std::vector<Segment *> &segments,
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double xorigin = 0.0,
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int height = 0,
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TQWidget* parent = 0,
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const char *name = 0);
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~ChordNameRuler();
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/// Indicate that the chord-name ruler should make itself ready and refresh
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void setReady();
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// may have one of these; can be changed at any time (to any in given composition):
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void setCurrentSegment(Segment *segment);
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// may have one of these (to avoid using percussion tracks in chords):
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void setStudio(Studio *studio);
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virtual TQSize sizeHint() const;
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virtual TQSize minimumSizeHint() const;
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void setMinimumWidth(int width) { m_width = width; }
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public slots:
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void slotScrollHoriz(int x);
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protected:
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virtual void paintEvent(TQPaintEvent *);
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private:
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void recalculate(timeT from = 0,
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timeT to = 0);
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double m_xorigin;
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int m_height;
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int m_currentXOffset;
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int m_width;
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bool m_ready;
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RulerScale *m_rulerScale;
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Composition *m_composition;
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unsigned int m_compositionRefreshStatusId;
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typedef std::map<Segment *, int> SegmentRefreshMap;
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SegmentRefreshMap m_segments; // map to refresh status id
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bool m_regetSegmentsOnChange;
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Segment *m_currentSegment;
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Studio *m_studio;
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Segment *m_chordSegment;
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TQFont m_font;
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TQFont m_boldFont;
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TQFontMetrics m_fontMetrics;
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const PropertyName TEXT_FORMAL_X;
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const PropertyName TEXT_ACTUAL_X;
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};
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}
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#endif
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