arrayparam.h

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/****************************************************************************

 File:    arrayparam.h
 Created: by Aidan Lane, December 30, 2004
 Updated: by Aidan Lane, February 15, 2004
 
 This file is part of Glitch
 Copyright (C) 2003-2004  Monash University, Clayton Campus, Australia
 Created by Aidan Lane, under the supervision of Jon McCormack.
 
 This program was developed to aid the students studying the CSE3313
 Computer Graphics course at Monash University.
 
 This software may contain portions that are copyright (C) 1993,
 Silicon Graphics, Inc. All Rights Reserved.
 
 Glitch 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, version 2.
 
 Glitch is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*****************************************************************************/

#ifndef __ARRAYPARAM_H__
#define __ARRAYPARAM_H__


#include <qlineedit.h>

#include "cmdparam.h"


class ArrayParam : public CmdParam {

    Q_OBJECT    // make QT's signal/slot system work

public:
    ArrayParam( const char* formalVarName, const char* defaultValue,
        SuperPtrList<CmdParam>* extVarElements,
        const char* exactTypeName = "unknown_array" )
        : CmdParam( formalVarName, defaultValue, exactTypeName, extVarElements ) {}

    // widgets
    virtual QWidget* createWidget( QWidget* parent, const char* name,
                    const QObject *slotOwner, const char* member )
    {
        QLineEdit* w = new QLineEdit( parent, name );
        // NOTE: we are not connecting to the lineedit's textChanged signal, but
        // rather its returnPressed and lostFocus signals, as it can get very
        // annoying when glitch updates after EVERY keystroke, especially
        // when enforcing the unique variable name policy.
        connect( w, SIGNAL( returnPressed() ), slotOwner, member );
        connect( w, SIGNAL( lostFocus() ), slotOwner, member );
        return (QWidget*)w;
    }

    // Update the name of the array variable
    virtual void setWidgetValue( QWidget* widget, const QString& value ) {
        if ( widget != NULL )
            ((QLineEdit*)widget)->setText( value );
    }

    virtual QString getWidgetValue( QWidget* widget ) {
        return (widget!=NULL) ? ((QLineEdit*)widget)->text() : QString::null;
    }
};


#endif  // __ARRAYPARAM_H__

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