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/*
**************************************************************************
description
--------------------
copyright : (C) 2003 by Andreas Zehender
email : [email protected]
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#ifndef PMVIEWBASE_H
#define PMVIEWBASE_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <qwidget.h>
#include <qstring.h>
class QDomElement;
/**
* This class stores the view configuration for one view.
*
* Reimplement this class for each view type that has to store
* additional values.
*
* Created, loaded from and saved to the xml config by the corresponding
* @ref PMViewTypeFactory factory class.
*/
class PMViewOptions
{
public:
/**
* Returns a deep copy
*/
virtual PMViewOptions* copy( ) const = 0;
/**
* Returns the identifier for the view type. Has to be equal
* to @ref PMViewBase::viewType for the corresponding view type.
*/
virtual QString viewType( ) const = 0;
/**
* Loads the data from the xml element
*/
virtual void loadData( QDomElement& e ) = 0;
/**
* Saves the data from to xml element
*/
virtual void saveData( QDomElement& e ) = 0;
};
/**
* Base class for configuration widgets for view types
* for the layout settings dialog page
*/
class PMViewOptionsWidget : public QWidget
{
Q_OBJECT
public:
/**
* Default constructor
*/
PMViewOptionsWidget( QWidget* parent, const char* name = 0 )
: QWidget( parent, name )
{
}
signals:
/**
* Emitted when the view type description has changed
*/
void viewTypeDescriptionChanged( );
};
/**
* Interface for views.
*
* Each view type has to implement this interface. Handles the
* config loading and saving
*/
class PMViewBase : public QWidget
{
Q_OBJECT
public:
/**
* Default constructor
*/
PMViewBase( QWidget* parent, const char* name = 0, WFlags f = 0 )
: QWidget( parent, name, f )
{
}
/**
* Returns the identifier for the view type. Has to be unique
* for all view types.
*/
virtual QString viewType( ) const = 0;
/**
* Returns a i18n'ed description
*/
virtual QString description( ) const = 0;
/**
* Restores the view configuration
*
* Reimplement this function if the view type has to
* restore additional values.
* @see PMViewOptions
*/
virtual void restoreViewConfig( PMViewOptions* ) { }
/**
* Saves the view configuration
*
* Reimplement this function if the view type has to
* restore additional values.
* @see PMViewOptions
*/
virtual void saveViewConfig( PMViewOptions* ) const { }
};
#endif
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