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15134568f1
* reduced header-dependencies and various cleanups * removed obsolete settings git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1158 0778d3d1-df1d-0410-868b-ea421aaaa00d
170 lines
4.2 KiB
C++
170 lines
4.2 KiB
C++
/*
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* knob.h - powerful knob-widget
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*
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* Copyright (c) 2004-2008 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_view.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, knobStyled
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} ;
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class EXPORT knob : public QWidget, public floatModelView
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{
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Q_OBJECT
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Q_PROPERTY(float innerRadius READ innerRadius WRITE setInnerRadius)
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Q_PROPERTY(float outerRadius READ outerRadius WRITE setOuterRadius)
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Q_PROPERTY(float centerPointX READ centerPointX WRITE setCenterPointX)
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Q_PROPERTY(float centerPointY READ centerPointY WRITE setCenterPointY)
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Q_PROPERTY(float lineWidth READ lineWidth WRITE setLineWidth)
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// Unfortunately, the gradient syntax doesn't create our gradient
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// correctly so we need to do this:
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Q_PROPERTY(QColor outerColor READ outerColor WRITE setOuterColor)
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mapPropertyFromModel(bool,isVolumeKnob,setVolumeKnob,m_volumeKnob);
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public:
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knob( int _knob_num, QWidget * _parent, const QString & _name = QString::null );
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virtual ~knob();
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// TODO: remove
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inline void setHintText( const QString & _txt_before,
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const QString & _txt_after )
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{
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setDescription( _txt_before );
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setUnit( _txt_after );
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}
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void setLabel( const QString & _txt );
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void setTotalAngle( float _angle );
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// Begin styled knob accessors
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float innerRadius( void ) const;
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void setInnerRadius( float _r );
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float outerRadius( void ) const;
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void setOuterRadius( float _r );
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QPointF centerPoint( void ) const;
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float centerPointX( void ) const;
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void setCenterPointX( float _c );
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float centerPointY( void ) const;
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void setCenterPointY( float _c );
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float lineWidth( void ) const;
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void setLineWidth( float _w );
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QColor outerColor( void ) const;
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void setOuterColor( const QColor & _c );
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signals:
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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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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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private slots:
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virtual void enterValue( void );
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void displayHelp( void );
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void friendlyUpdate( void );
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private:
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QString displayValue( void ) const;
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virtual void doConnections( void );
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QLineF calculateLine( const QPointF & _mid, float _radius,
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float _innerRadius = 1) const;
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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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bool updateAngle( void );
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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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modelUntyped()->step<float>() ) );
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}
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static textFloat * s_textFloat;
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int m_knobNum;
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QString m_label;
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QPixmap * m_knobPixmap;
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boolModel m_volumeKnob;
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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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float m_totalAngle;
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int m_angle;
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QImage m_cache;
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// Styled knob stuff, could break out
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QPointF m_centerPoint;
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float m_innerRadius;
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float m_outerRadius;
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float m_lineWidth;
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QColor * m_outerColor;
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} ;
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typedef floatModel knobModel;
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#endif
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