1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
<!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:2374 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>t14/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>t14/lcdrange.cpp Example File</h1>
<pre>/****************************************************************
**
** Implementation of LCDRange class, Qt 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>>
#include <<a href="qlayout-h.html">qlayout.h</a>>
<a name="f114"></a>LCDRange::LCDRange( <a href="qwidget.html">QWidget</a> *parent, const char *name )
: <a href="qwidget.html">QWidget</a>( parent, name )
{
init();
}
LCDRange::LCDRange( const char *s, QWidget *parent, const char *name )
: <a href="qwidget.html">QWidget</a>( parent, name )
{
init();
setText( s );
}
void <a name="f115"></a>LCDRange::init()
{
<a href="qlcdnumber.html">QLCDNumber</a> *lcd = new <a href="qlcdnumber.html">QLCDNumber</a>( 2, this, "lcd" );
slider = new <a href="qslider.html">QSlider</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">QLabel</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 );
<a href="qvboxlayout.html">QVBoxLayout</a> * l = new <a href="qvboxlayout.html">QVBoxLayout</a>( this );
l-><a href="qboxlayout.html#addWidget">addWidget</a>( lcd, 1 );
l-><a href="qboxlayout.html#addWidget">addWidget</a>( slider );
l-><a href="qboxlayout.html#addWidget">addWidget</a>( label );
}
int <a name="f116"></a>LCDRange::value() const
{
return slider-><a href="qslider.html#value">value</a>();
}
const char *<a name="f117"></a>LCDRange::text() const
{
return label-><a href="qlabel.html#text">text</a>();
}
void <a name="f118"></a>LCDRange::setValue( int value )
{
slider-><a href="qslider.html#setValue">setValue</a>( value );
}
void <a name="f119"></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="f120"></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>Qt 3.3.8</div>
</table></div></address></body>
</html>
|
