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79 lines
2.0 KiB
79 lines
2.0 KiB
/****************************************************************************
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "rot13.h"
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#include <qmultilineedit.h>
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#include <qpushbutton.h>
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#include <qapplication.h>
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#include <qlayout.h>
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Rot13::Rot13()
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{
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left = new QMultiLineEdit( this, "left" );
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right = new QMultiLineEdit( this, "right" );
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connect( left, SIGNAL(textChanged()), this, SLOT(changeRight()) );
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connect( right, SIGNAL(textChanged()), this, SLOT(changeLeft()) );
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QPushButton * quit = new QPushButton( "&Quit", this );
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quit->setFocusPolicy( NoFocus );
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connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
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QGridLayout * l = new QGridLayout( this, 2, 2, 5 );
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l->addWidget( left, 0, 0 );
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l->addWidget( right, 0, 1 );
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l->addWidget( quit, 1, 1, AlignRight );
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left->setFocus();
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}
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void Rot13::changeLeft()
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{
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left->blockSignals( TRUE );
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left->setText( rot13( right->text() ) );
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left->blockSignals( FALSE );
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}
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void Rot13::changeRight()
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{
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right->blockSignals( TRUE );
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right->setText( rot13( left->text() ) );
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right->blockSignals( FALSE );
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}
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QString Rot13::rot13( const QString & input ) const
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{
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QString r = input;
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int i = r.length();
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while( i-- ) {
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if ( r[i] >= QChar('A') && r[i] <= QChar('M') ||
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r[i] >= QChar('a') && r[i] <= QChar('m') )
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r[i] = (char)((int)QChar(r[i]) + 13);
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else if ( r[i] >= QChar('N') && r[i] <= QChar('Z') ||
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r[i] >= QChar('n') && r[i] <= QChar('z') )
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r[i] = (char)((int)QChar(r[i]) - 13);
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}
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return r;
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}
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int main( int argc, char ** argv )
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{
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QApplication a( argc, argv );
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Rot13 r;
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r.resize( 400, 400 );
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a.setMainWidget( &r );
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r.setCaption("Qt Example - ROT13");
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r.show();
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return a.exec();
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}
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