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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Rot13</h1>
<p>
This example lets you enter a text into a mulitilineedit widget.
It will be displayed in the edit widget to the right transformed using
the rot13 algorithm.
<p> <hr>
<p> Header file:
<p> <pre>/****************************************************************************
** $Id: qt/rot13.h 3.3.8 edited Jan 11 14:46 $
**
** Definition of something or other
**
** Created : 979899
**
** Copyright (C) 1997-2007 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#ifndef ROT13_H
#define ROT13_H
#include <<a href="qwidget-h.html">ntqwidget.h</a>>
class TQMultiLineEdit;
class Rot13: public <a href="ntqwidget.html">TQWidget</a> {
<a href="metaobjects.html#TQ_OBJECT">TQ_OBJECT</a>
public:
Rot13();
<a href="ntqstring.html">TQString</a> rot13( const <a href="ntqstring.html">TQString</a> & ) const;
private slots:
void changeLeft();
void changeRight();
private:
<a href="ntqmultilineedit.html">TQMultiLineEdit</a> * left, * right;
};
#endif
</pre>
<p> <hr>
<p> Implementation:
<p> <pre>/****************************************************************************
** $Id: qt/rot13.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "rot13.h"
#include <<a href="qmultilineedit-h.html">ntqmultilineedit.h</a>>
#include <<a href="qpushbutton-h.html">ntqpushbutton.h</a>>
#include <<a href="qapplication-h.html">ntqapplication.h</a>>
#include <<a href="qlayout-h.html">ntqlayout.h</a>>
<a name="f432"></a>Rot13::Rot13()
{
left = new <a href="ntqmultilineedit.html">TQMultiLineEdit</a>( this, "left" );
right = new <a href="ntqmultilineedit.html">TQMultiLineEdit</a>( this, "right" );
<a name="x1375"></a> <a href="ntqobject.html#connect">connect</a>( left, TQ_SIGNAL(<a href="ntqtextedit.html#textChanged">textChanged</a>()), this, TQ_SLOT(changeRight()) );
<a href="ntqobject.html#connect">connect</a>( right, TQ_SIGNAL(<a href="ntqtextedit.html#textChanged">textChanged</a>()), this, TQ_SLOT(changeLeft()) );
<a href="ntqpushbutton.html">TQPushButton</a> * quit = new <a href="ntqpushbutton.html">TQPushButton</a>( "&Quit", this );
<a name="x1379"></a> quit-><a href="ntqwidget.html#setFocusPolicy">setFocusPolicy</a>( NoFocus );
<a href="ntqobject.html#connect">connect</a>( quit, TQ_SIGNAL(<a href="ntqbutton.html#clicked">clicked</a>()), tqApp, TQ_SLOT(<a href="ntqapplication.html#quit">quit</a>()) );
<a href="qgridlayout.html">TQGridLayout</a> * l = new <a href="qgridlayout.html">TQGridLayout</a>( this, 2, 2, 5 );
<a name="x1370"></a> l-><a href="qgridlayout.html#addWidget">addWidget</a>( left, 0, 0 );
l-><a href="qgridlayout.html#addWidget">addWidget</a>( right, 0, 1 );
l-><a href="qgridlayout.html#addWidget">addWidget</a>( quit, 1, 1, AlignRight );
<a name="x1378"></a> left-><a href="ntqwidget.html#setFocus">setFocus</a>();
}
void <a name="f433"></a>Rot13::changeLeft()
{
<a name="x1371"></a> left-><a href="ntqobject.html#blockSignals">blockSignals</a>( TRUE );
<a name="x1374"></a><a name="x1373"></a> left-><a href="ntqtextedit.html#setText">setText</a>( rot13( right-><a href="ntqtextedit.html#text">text</a>() ) );
left-><a href="ntqobject.html#blockSignals">blockSignals</a>( FALSE );
}
void <a name="f434"></a>Rot13::changeRight()
{
right-><a href="ntqobject.html#blockSignals">blockSignals</a>( TRUE );
right-><a href="ntqtextedit.html#setText">setText</a>( rot13( left-><a href="ntqtextedit.html#text">text</a>() ) );
right-><a href="ntqobject.html#blockSignals">blockSignals</a>( FALSE );
}
TQString <a name="f435"></a>Rot13::rot13( const <a href="ntqstring.html">TQString</a> & input ) const
{
<a href="ntqstring.html">TQString</a> r = input;
<a name="x1372"></a> int i = r.<a href="ntqstring.html#length">length</a>();
while( i-- ) {
if ( r[i] >= TQChar('A') && r[i] <= TQChar('M') ||
r[i] >= TQChar('a') && r[i] <= TQChar('m') )
r[i] = (char)((int)TQChar(r[i]) + 13);
else if ( r[i] >= TQChar('N') && r[i] <= TQChar('Z') ||
r[i] >= TQChar('n') && r[i] <= TQChar('z') )
r[i] = (char)((int)TQChar(r[i]) - 13);
}
return r;
}
int main( int argc, char ** argv )
{
<a href="ntqapplication.html">TQApplication</a> a( argc, argv );
Rot13 r;
r.<a href="ntqwidget.html#resize">resize</a>( 400, 400 );
a.<a href="ntqapplication.html#setMainWidget">setMainWidget</a>( &r );
r.<a href="ntqwidget.html#setCaption">setCaption</a>("TQt Example - ROT13");
r.<a href="ntqwidget.html#show">show</a>();
return a.<a href="ntqapplication.html#exec">exec</a>();
}
</pre>
<p>See also <a href="examples.html">Examples</a>.
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