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/****************************************************************************
** $Id: qt/examples/rot13/rot13.cpp 2.3.1 edited 2001-01-26 $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "rot13.h"
#include <qmultilineedit.h>
#include <qpushbutton.h>
#include <qapplication.h>
#include <qlayout.h>
Rot13::Rot13()
{
left = new QMultiLineEdit( this, "left" );
right = new QMultiLineEdit( this, "right" );
connect( left, SIGNAL(textChanged()), this, SLOT(changeRight()) );
connect( right, SIGNAL(textChanged()), this, SLOT(changeLeft()) );
QPushButton * quit = new QPushButton( "&Quit", this );
quit->setFocusPolicy( NoFocus );
connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
QGridLayout * l = new QGridLayout( this, 2, 2, 5 );
l->addWidget( left, 0, 0 );
l->addWidget( right, 0, 1 );
l->addWidget( quit, 1, 1, AlignRight );
left->setFocus();
}
void Rot13::changeLeft()
{
left->blockSignals( TRUE );
left->setText( rot13( right->text() ) );
left->blockSignals( FALSE );
}
void Rot13::changeRight()
{
right->blockSignals( TRUE );
right->setText( rot13( left->text() ) );
right->blockSignals( FALSE );
}
QString Rot13::rot13( const QString & input ) const
{
QString r = input;
int i = r.length();
while( i-- ) {
if ( r[i] >= QChar('A') && r[i] <= QChar('M') ||
r[i] >= QChar('a') && r[i] <= QChar('m') )
r[i] = (char)((int)QChar(r[i]) + 13);
else if ( r[i] >= QChar('N') && r[i] <= QChar('Z') ||
r[i] >= QChar('n') && r[i] <= QChar('z') )
r[i] = (char)((int)QChar(r[i]) - 13);
}
return r;
}
int main( int argc, char ** argv )
{
QApplication a( argc, argv );
Rot13 r;
r.resize( 400, 400 );
a.setMainWidget( &r );
r.show();
return a.exec();
}
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