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107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
/*
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* PianoView.h - declaration of PianoView, an interactive piano/keyboard-widget
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*
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* Copyright (c) 2004-2010 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - https://lmms.io
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*
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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
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef PIANO_VIEW_H
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#define PIANO_VIEW_H
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#include <QPixmap>
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#include <QScrollBar>
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#include "AutomatableModel.h"
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#include "ModelView.h"
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namespace lmms
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{
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class Piano;
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namespace gui
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{
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class PianoView : public QWidget, public ModelView
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{
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Q_OBJECT
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public:
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PianoView( QWidget * _parent );
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~PianoView() override = default;
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static int getKeyFromKeyEvent( QKeyEvent * _ke );
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public:
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void keyPressEvent( QKeyEvent * ke ) override;
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void keyReleaseEvent( QKeyEvent * ke ) override;
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protected:
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void modelChanged() override;
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void contextMenuEvent( QContextMenuEvent * _me ) override;
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void paintEvent( QPaintEvent * ) override;
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void mousePressEvent( QMouseEvent * me ) override;
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void mouseReleaseEvent( QMouseEvent * me ) override;
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void mouseMoveEvent( QMouseEvent * me ) override;
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void focusOutEvent( QFocusEvent * _fe ) override;
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void focusInEvent( QFocusEvent * fe ) override;
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void resizeEvent( QResizeEvent * _event ) override;
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private:
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int getKeyFromMouse( const QPoint & _p ) const;
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int getKeyX( int _key_num ) const;
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int getKeyWidth(int key_num) const;
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int getKeyHeight(int key_num) const;
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IntModel *getNearestMarker(int key, QString* title = nullptr);
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static QPixmap * s_whiteKeyPm;
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static QPixmap * s_blackKeyPm;
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static QPixmap * s_whiteKeyPressedPm;
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static QPixmap * s_blackKeyPressedPm;
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static QPixmap * s_whiteKeyDisabledPm;
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static QPixmap * s_blackKeyDisabledPm;
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Piano * m_piano;
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QScrollBar * m_pianoScroll;
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int m_startKey; //!< first key when drawing
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int m_lastKey; //!< previously pressed key
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IntModel *m_movedNoteModel; //!< note marker which is being moved
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private slots:
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void pianoScrolled( int _new_pos );
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signals:
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void keyPressed( int );
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void baseNoteChanged();
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} ;
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} // namespace gui
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} // namespace lmms
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#endif
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