<!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/doc/tutorial.doc:1706 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>t12/lcdrange.cpp Example File</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>t12/lcdrange.cpp Example File</h1> <pre>/**************************************************************** ** ** Implementation of LCDRange class, TQt tutorial 12 ** ****************************************************************/ #include "lcdrange.h" #include <<a href="qslider-h.html">qslider.h</a>> #include <<a href="qlcdnumber-h.html">qlcdnumber.h</a>> #include <<a href="qlabel-h.html">qlabel.h</a>> <a name="f67"></a>LCDRange::LCDRange( <a href="qwidget.html">TQWidget</a> *parent, const char *name ) : <a href="qvbox.html">TQVBox</a>( parent, name ) { init(); } LCDRange::LCDRange( const char *s, TQWidget *parent, const char *name ) : <a href="qvbox.html">TQVBox</a>( parent, name ) { init(); setText( s ); } void <a name="f68"></a>LCDRange::init() { <a href="qlcdnumber.html">TQLCDNumber</a> *lcd = new <a href="qlcdnumber.html">TQLCDNumber</a>( 2, this, "lcd" ); slider = new <a href="qslider.html">TQSlider</a>( Horizontal, this, "slider" ); slider-><a href="qrangecontrol.html#setRange">setRange</a>( 0, 99 ); slider-><a href="qslider.html#setValue">setValue</a>( 0 ); label = new <a href="qlabel.html">TQLabel</a>( " ", this, "label" ); label-><a href="qlabel.html#setAlignment">setAlignment</a>( AlignCenter ); <a href="qobject.html#connect">connect</a>( slider, SIGNAL(<a href="qslider.html#valueChanged">valueChanged</a>(int)), lcd, SLOT(<a href="qlcdnumber.html#display">display</a>(int)) ); <a href="qobject.html#connect">connect</a>( slider, SIGNAL(<a href="qslider.html#valueChanged">valueChanged</a>(int)), SIGNAL(valueChanged(int)) ); <a href="qwidget.html#setFocusProxy">setFocusProxy</a>( slider ); } int <a name="f69"></a>LCDRange::value() const { return slider-><a href="qslider.html#value">value</a>(); } const char *<a name="f70"></a>LCDRange::text() const { return label-><a href="qlabel.html#text">text</a>(); } void <a name="f71"></a>LCDRange::setValue( int value ) { slider-><a href="qslider.html#setValue">setValue</a>( value ); } void <a name="f72"></a>LCDRange::setRange( int minVal, int maxVal ) { if ( minVal < 0 || maxVal > 99 || minVal > maxVal ) { <a href="qapplication.html#qWarning">qWarning</a>( "LCDRange::setRange(%d,%d)\n" "\tRange must be 0..99\n" "\tand minVal must not be greater than maxVal", minVal, maxVal ); return; } slider-><a href="qrangecontrol.html#setRange">setRange</a>( minVal, maxVal ); } void <a name="f73"></a>LCDRange::setText( const char *s ) { label-><a href="qlabel.html#setText">setText</a>( s ); } </pre><!-- 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>