136 lines
3.8 KiB
C++
136 lines
3.8 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2002-2012 Werner Schweer
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#ifndef __CHORDVIEW_H__
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#define __CHORDVIEW_H__
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#include "libmscore/pos.h"
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namespace Ms {
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class Staff;
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class Chord;
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class Note;
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class NoteEvent;
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class ChordItem;
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class ChordView;
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enum { GripTypeItem = QGraphicsItem::UserType, ChordTypeItem };
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//---------------------------------------------------------
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// GripItem
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//---------------------------------------------------------
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class GripItem : public QGraphicsRectItem {
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ChordItem* _event;
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int _gripType; // 0 - start grip 1 - end grip
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ChordView* _view;
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virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
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protected:
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virtual void mouseMoveEvent(QGraphicsSceneMouseEvent*);
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public:
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GripItem(int gripType, ChordView*);
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virtual int type() const { return GripTypeItem; }
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ChordItem* event() const { return _event; }
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void setEvent(ChordItem* e) { _event = e; }
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};
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//---------------------------------------------------------
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// ChordItem
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//---------------------------------------------------------
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class ChordItem : public QGraphicsRectItem {
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ChordView* _view;
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Note* _note;
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NoteEvent* _event;
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bool _current;
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virtual void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget* = 0);
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virtual void mouseMoveEvent(QGraphicsSceneMouseEvent*);
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public:
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ChordItem(ChordView*, Note*, NoteEvent*);
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virtual int type() const { return ChordTypeItem; }
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NoteEvent* event() const { return _event; }
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Note* note() const { return _note; }
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bool current() const { return _current; }
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void setCurrent(bool v);
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};
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//---------------------------------------------------------
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// ChordView
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//---------------------------------------------------------
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class ChordView : public QGraphicsView {
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Q_OBJECT
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Chord* chord;
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Note* _curNote;
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int _locator;
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int _pos;
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QGraphicsLineItem* locatorLine;
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int ticks;
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int magStep;
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GripItem* lg;
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GripItem* rg;
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ChordItem* curEvent;
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bool _evenGrid;
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bool _dirty;
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virtual void drawBackground(QPainter*, const QRectF& rect);
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protected:
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virtual void wheelEvent(QWheelEvent*);
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virtual void mouseMoveEvent(QMouseEvent*);
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virtual void leaveEvent(QEvent*);
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virtual void mousePressEvent(QMouseEvent*);
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signals:
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void magChanged(double, double);
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void xposChanged(int);
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void pitchChanged(int);
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void posChanged(int);
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protected slots:
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void deleteItem();
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public slots:
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void moveLocator();
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void selectionChanged();
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public:
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ChordView();
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void setChord(Chord*);
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void ensureVisible(int tick);
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QList<QGraphicsItem*> items() { return scene()->selectedItems(); }
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bool evenGrid() const { return _evenGrid; }
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void setEvenGrid(bool val) { _evenGrid = val; }
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GripItem* rightGrip() const { return rg; }
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void setCurItem(ChordItem*);
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bool dirty() const { return _dirty; }
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void setDirty(bool b) { _dirty = b; }
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Note* curNote() const { return _curNote; }
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static int pos2pix(int pos);
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static int pix2pos(int pix);
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static int y2pitch(int pix);
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static int pitch2y(int pitch);
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};
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} // namespace Ms
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#endif
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