<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/rot13/rot13.doc:4 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Rot13</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <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, SIGNAL(<a href="ntqtextedit.html#textChanged">textChanged</a>()), this, SLOT(changeRight()) ); <a href="ntqobject.html#connect">connect</a>( right, SIGNAL(<a href="ntqtextedit.html#textChanged">textChanged</a>()), this, 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, SIGNAL(<a href="ntqbutton.html#clicked">clicked</a>()), tqApp, 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>. <!-- eof --> <p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>TQt 3.3.8</div> </table></div></address></body> </html>