| [190] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|---|
| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial.doc:863 -->
|
|---|
| 3 | <html>
|
|---|
| 4 | <head>
|
|---|
| 5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|---|
| 6 | <title>t8/lcdrange.cpp Example File</title>
|
|---|
| 7 | <style type="text/css"><!--
|
|---|
| 8 | fn { margin-left: 1cm; text-indent: -1cm; }
|
|---|
| 9 | a:link { color: #004faf; text-decoration: none }
|
|---|
| 10 | a:visited { color: #672967; text-decoration: none }
|
|---|
| 11 | body { background: #ffffff; color: black; }
|
|---|
| 12 | --></style>
|
|---|
| 13 | </head>
|
|---|
| 14 | <body>
|
|---|
| 15 |
|
|---|
| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|---|
| 17 | <tr bgcolor="#E5E5E5">
|
|---|
| 18 | <td valign=center>
|
|---|
| 19 | <a href="index.html">
|
|---|
| 20 | <font color="#004faf">Home</font></a>
|
|---|
| 21 | | <a href="classes.html">
|
|---|
| 22 | <font color="#004faf">All Classes</font></a>
|
|---|
| 23 | | <a href="mainclasses.html">
|
|---|
| 24 | <font color="#004faf">Main Classes</font></a>
|
|---|
| 25 | | <a href="annotated.html">
|
|---|
| 26 | <font color="#004faf">Annotated</font></a>
|
|---|
| 27 | | <a href="groups.html">
|
|---|
| 28 | <font color="#004faf">Grouped Classes</font></a>
|
|---|
| 29 | | <a href="functions.html">
|
|---|
| 30 | <font color="#004faf">Functions</font></a>
|
|---|
| 31 | </td>
|
|---|
| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t8/lcdrange.cpp Example File</h1>
|
|---|
| 33 |
|
|---|
| 34 |
|
|---|
| 35 | <pre>/****************************************************************
|
|---|
| 36 | **
|
|---|
| 37 | ** Implementation of LCDRange class, Qt tutorial 8
|
|---|
| 38 | **
|
|---|
| 39 | ****************************************************************/
|
|---|
| 40 |
|
|---|
| 41 | #include "lcdrange.h"
|
|---|
| 42 |
|
|---|
| 43 | #include <<a href="qslider-h.html">qslider.h</a>>
|
|---|
| 44 | #include <<a href="qlcdnumber-h.html">qlcdnumber.h</a>>
|
|---|
| 45 |
|
|---|
| 46 | <a name="f30"></a>LCDRange::LCDRange( <a href="qwidget.html">QWidget</a> *parent, const char *name )
|
|---|
| 47 | : <a href="qvbox.html">QVBox</a>( parent, name )
|
|---|
| 48 | {
|
|---|
| 49 | <a href="qlcdnumber.html">QLCDNumber</a> *lcd = new <a href="qlcdnumber.html">QLCDNumber</a>( 2, this, "lcd" );
|
|---|
| 50 | slider = new <a href="qslider.html">QSlider</a>( Horizontal, this, "slider" );
|
|---|
| 51 | slider-><a href="qrangecontrol.html#setRange">setRange</a>( 0, 99 );
|
|---|
| 52 | slider-><a href="qslider.html#setValue">setValue</a>( 0 );
|
|---|
| 53 | <a href="qobject.html#connect">connect</a>( slider, SIGNAL(<a href="qslider.html#valueChanged">valueChanged</a>(int)),
|
|---|
| 54 | lcd, SLOT(<a href="qlcdnumber.html#display">display</a>(int)) );
|
|---|
| 55 | <a href="qobject.html#connect">connect</a>( slider, SIGNAL(<a href="qslider.html#valueChanged">valueChanged</a>(int)),
|
|---|
| 56 | SIGNAL(valueChanged(int)) );
|
|---|
| 57 |
|
|---|
| 58 | <a href="qwidget.html#setFocusProxy">setFocusProxy</a>( slider );
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 | int <a name="f31"></a>LCDRange::value() const
|
|---|
| 62 | {
|
|---|
| 63 | return slider-><a href="qslider.html#value">value</a>();
|
|---|
| 64 | }
|
|---|
| 65 |
|
|---|
| 66 | void <a name="f32"></a>LCDRange::setValue( int value )
|
|---|
| 67 | {
|
|---|
| 68 | slider-><a href="qslider.html#setValue">setValue</a>( value );
|
|---|
| 69 | }
|
|---|
| 70 |
|
|---|
| 71 | void <a name="f33"></a>LCDRange::setRange( int minVal, int maxVal )
|
|---|
| 72 | {
|
|---|
| 73 | if ( minVal < 0 || maxVal > 99 || minVal > maxVal ) {
|
|---|
| 74 | <a href="qapplication.html#qWarning">qWarning</a>( "LCDRange::setRange(%d,%d)\n"
|
|---|
| 75 | "\tRange must be 0..99\n"
|
|---|
| 76 | "\tand minVal must not be greater than maxVal",
|
|---|
| 77 | minVal, maxVal );
|
|---|
| 78 | return;
|
|---|
| 79 | }
|
|---|
| 80 | slider-><a href="qrangecontrol.html#setRange">setRange</a>( minVal, maxVal );
|
|---|
| 81 | }
|
|---|
| 82 | </pre><!-- eof -->
|
|---|
| 83 | <p><address><hr><div align=center>
|
|---|
| 84 | <table width=100% cellspacing=0 border=0><tr>
|
|---|
| 85 | <td>Copyright © 2007
|
|---|
| 86 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|---|
| 87 | <td align=right><div align=right>Qt 3.3.8</div>
|
|---|
| 88 | </table></div></address></body>
|
|---|
| 89 | </html>
|
|---|
