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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/branches/lmms-mv@634 0778d3d1-df1d-0410-868b-ea421aaaa00d
132 lines
3.0 KiB
C++
132 lines
3.0 KiB
C++
/*
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* knob.h - powerful knob-widget
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*
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* This file is based on the knob-widget of the Qwt Widget Library by
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* Josef Wilgen
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*
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* Copyright (c) 2004-2007 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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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 _KNOB_H
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#define _KNOB_H
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#include <QtGui/QWidget>
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#include <QtCore/QPoint>
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#include "automatable_model.h"
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#include "templates.h"
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class QPixmap;
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class textFloat;
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enum knobTypes
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{
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knobDark_28, knobBright_26, knobSmall_17, knobGreen_17
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} ;
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class knob : public QWidget, public floatModelView
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{
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Q_OBJECT
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public:
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knob( int _knob_num, QWidget * _parent, const QString & _name );
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virtual ~knob();
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void setHintText( const QString & _txt_before,
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const QString & _txt_after );
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void setLabel( const QString & _txt );
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void setTotalAngle( float _angle );
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public slots:
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void reset( void );
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void copyValue( void );
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void pasteValue( void );
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virtual void enterValue( void );
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void connectToMidiDevice( void );
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void displayHelp( void );
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signals:
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// void valueChanged( float value );
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// void valueChanged( void );
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void sliderPressed( void );
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void sliderReleased( void );
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void sliderMoved( float value );
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protected:
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static float s_copiedValue;
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static textFloat * s_textFloat;
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float m_mouseOffset;
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QPoint m_origMousePos;
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bool m_buttonPressed;
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QPixmap * m_knobPixmap;
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QString m_hintTextBeforeValue;
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QString m_hintTextAfterValue;
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virtual void contextMenuEvent( QContextMenuEvent * _me );
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virtual void dragEnterEvent( QDragEnterEvent * _dee );
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virtual void dropEvent( QDropEvent * _de );
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virtual void mousePressEvent( QMouseEvent * _me );
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virtual void mouseReleaseEvent( QMouseEvent * _me );
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virtual void mouseMoveEvent( QMouseEvent * _me );
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virtual void mouseDoubleClickEvent( QMouseEvent * _me );
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virtual void paintEvent( QPaintEvent * _me );
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virtual void wheelEvent( QWheelEvent * _me );
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void drawKnob( QPainter * _p );
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void setPosition( const QPoint & _p );
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float getValue( const QPoint & _p );
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private:
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inline float pageSize( void ) const
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{
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return( tMax<float>( ( model()->maxValue() -
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model()->minValue() ) / 100.0f,
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model()->step() ) );
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}
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void valueChange( void );
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void buttonReleased( void );
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float m_totalAngle;
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int m_knobNum;
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QString m_label;
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} ;
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typedef knob::autoModel knobModel;
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#endif
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