/***************************************************************************
 *   Copyright (C) 2003 by Roberto Raggi                                   *
 *   roberto@kdevelop.org                                                  *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "settingsdialog.h"
#include <klistbox.h>
#include <kcombobox.h>
#include <qfile.h>
#include <qdir.h>
#include <qregexp.h>
#include <cstdlib>

#if QT_VERSION < 0x030100
/* original source from qt-3.2.1/src/widgets/qlistbox.cpp
QListBoxItem* QListBox::selectedItem() const
{
    if ( d->selectionMode != Single )
	return 0;
    if ( isSelected( currentItem() ) )
	return  d->current;
    return 0;
}
*/
QListBoxItem* QListBox_selectedItem(QListBox* cpQListBox)
{
    if ( cpQListBox->selectionMode() != QListBox::Single )
    return 0;
    if ( cpQListBox->isSelected( cpQListBox->currentItem() ) )
    return  cpQListBox->item(cpQListBox->currentItem());
    return 0;
}
#endif

SettingsDialog::SettingsDialog(QWidget* parent, const char* name, WFlags fl)
    : SettingsDialogBase(parent,name,fl)
{
    QStringList qtdirs;
    qtdirs.push_back( ::getenv("QTDIR") );
    qtdirs.push_back( "/usr/lib/qt3" );
    qtdirs.push_back( "/usr/lib/qt" );
    qtdirs.push_back( "/usr/share/qt3" );

    for( QStringList::Iterator it=qtdirs.begin(); it!=qtdirs.end(); ++it )
    {
        QString qtdir = *it;
        if( !qtdir.isEmpty() && isValidQtDir(qtdir) )
            if (!qtListBox->findItem(qtdir, ExactMatch))
                qtListBox->insertItem( qtdir );
    }
}

SettingsDialog::~SettingsDialog()
{
}

/*$SPECIALIZATION$*/
void SettingsDialog::slotSelectionChanged(QListBoxItem* // item
                                          )
{
#if QT_VERSION < 0x030100
    if( !QListBox_selectedItem(qtListBox) ){
#else
    if( !qtListBox->selectedItem() ){
#endif
	emit enabled( false );
	return;
    }

    QDir dir( qtDir() + "/include" );
    QStringList qconfigFileList = dir.entryList( "qconfig-*.h" );
    qtConfiguration->clear();
    QRegExp rx( "qconfig-(\\w+)\\.h" );
    for( QStringList::Iterator it=qconfigFileList.begin(); it!=qconfigFileList.end(); ++it )
    {
	(void) rx.exactMatch( *it );
	qtConfiguration->insertItem( rx.cap(1) );
    }

    emit enabled( true );
}

bool SettingsDialog::isValidQtDir( const QString & path ) const
{
    return QFile::exists( path + "/include/qt.h" );
}

QString SettingsDialog::qtDir( ) const
{
    return qtListBox->currentText();
}

QString SettingsDialog::configuration( ) const
{
    return qtConfiguration->currentText();
}


#include "settingsdialog.moc"


