mirror of
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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1322 0778d3d1-df1d-0410-868b-ea421aaaa00d
149 lines
2.9 KiB
C++
149 lines
2.9 KiB
C++
/*
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* mv_base.h - base for M/V-architecture of LMMS
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*
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* Copyright (c) 2007-2008 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 _MV_BASE_H
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#define _MV_BASE_H
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#include <QtCore/QObject>
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#include <QtCore/QPointer>
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#include "export.h"
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class modelView;
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class EXPORT model : public QObject
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{
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Q_OBJECT
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public:
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model( model * _parent, QString _display_name = QString::null,
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bool _default_constructed = FALSE ) :
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QObject( _parent ),
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m_displayName( _display_name ),
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m_defaultConstructed( _default_constructed )
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{
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}
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virtual ~model()
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{
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}
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inline bool defaultConstructed( void )
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{
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return( m_defaultConstructed );
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}
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inline model * parentModel( void ) const
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{
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return static_cast<model *>( parent() );
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}
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virtual QString displayName( void ) const
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{
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return m_displayName;
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}
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virtual void setDisplayName( const QString & _display_name )
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{
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m_displayName = _display_name;
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}
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virtual QString fullDisplayName( void ) const;
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private:
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QString m_displayName;
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bool m_defaultConstructed;
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signals:
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// emitted if actual data of the model (e.g. values) have changed
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void dataChanged( void );
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// emitted in case new data was not set as it's been equal to old data
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void dataUnchanged( void );
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// emitted if properties of the model (e.g. ranges) have changed
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void propertiesChanged( void );
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} ;
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class EXPORT modelView
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{
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public:
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modelView( model * _model, QWidget * _this );
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virtual ~modelView();
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virtual void setModel( model * _model, bool _old_model_valid = TRUE );
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inline model * getModel( void )
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{
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return( m_model );
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}
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inline const model * getModel( void ) const
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{
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return( m_model );
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}
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template<class T>
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T * castModel( void )
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{
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return( dynamic_cast<T *>( getModel() ) );
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}
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template<class T>
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const T * castModel( void ) const
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{
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return( dynamic_cast<const T *>( getModel() ) );
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}
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protected:
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// sub-classes can re-implement this to track model-changes
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virtual void modelChanged( void )
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{
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}
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QWidget * widget( void )
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{
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return( m_widget );
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}
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virtual void doConnections( void );
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private:
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QWidget * m_widget;
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QPointer<model> m_model;
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} ;
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#endif
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