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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>Range controls</h1>
<p>
This examples shows various types of range controls that
are supported by Qt: dials, spin boxes and sliders.
<p> <hr>
<p> Header file:
<p> <pre>/****************************************************************************
** $Id: qt/rangecontrols.h 3.0.2 edited Oct 12 12:18 $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#ifndef RANGECONTROLS_H
#define RANGECONTROLS_H
#include <<a href="qvbox-h.html">qvbox.h</a>>
class QCheckBox;
class RangeControls : public <a href="qvbox.html">QVBox</a>
{
<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
public:
RangeControls( <a href="qwidget.html">QWidget</a> *parent = 0, const char *name = 0 );
private:
<a href="qcheckbox.html">QCheckBox</a> *notches, *wrapping;
};
#endif
</pre>
<p> <hr>
<p> Implementation:
<p> <pre>/****************************************************************************
** $Id: qt/rangecontrols.cpp 3.0.2 edited Oct 12 12:18 $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "rangecontrols.h"
#include <<a href="qhbox-h.html">qhbox.h</a>>
#include <<a href="qlcdnumber-h.html">qlcdnumber.h</a>>
#include <<a href="qspinbox-h.html">qspinbox.h</a>>
#include <<a href="qlabel-h.html">qlabel.h</a>>
#include <<a href="qstring-h.html">qstring.h</a>>
#include <<a href="qslider-h.html">qslider.h</a>>
#include <<a href="qcheckbox-h.html">qcheckbox.h</a>>
#include <limits.h>
<a name="f248"></a>RangeControls::RangeControls( <a href="qwidget.html">QWidget</a> *parent, const char *name )
: <a href="qvbox.html">QVBox</a>( parent, name )
{
<a href="qhbox.html">QHBox</a> *row1 = new <a href="qhbox.html">QHBox</a>( this );
<a href="qvbox.html">QVBox</a> *cell2 = new <a href="qvbox.html">QVBox</a>( row1 );
<a name="x605"></a> cell2-><a href="qframe.html#setMargin">setMargin</a>( 10 );
<a name="x604"></a> cell2-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( QFrame::WinPanel | QFrame::Sunken );
(void)new <a href="qwidget.html">QWidget</a>( cell2 );
<a href="qlabel.html">QLabel</a> *label1 = new <a href="qlabel.html">QLabel</a>( QString( "Enter a value between\n%1 and %2:" ).arg( -INT_MAX ).arg( INT_MAX ), cell2 );
<a name="x614"></a><a name="x613"></a> label1-><a href="qwidget.html#setMaximumHeight">setMaximumHeight</a>( label1-><a href="qwidget.html#sizeHint">sizeHint</a>().height() );
<a href="qspinbox.html">QSpinBox</a> *sb1 = new <a href="qspinbox.html">QSpinBox</a>( -INT_MAX, INT_MAX, 1, cell2 );
<a name="x612"></a> sb1-><a href="qspinbox.html#setValue">setValue</a>( 0 );
<a href="qlabel.html">QLabel</a> *label2 = new <a href="qlabel.html">QLabel</a>( "Enter a zoom value:", cell2 );
label2-><a href="qwidget.html#setMaximumHeight">setMaximumHeight</a>( label2-><a href="qwidget.html#sizeHint">sizeHint</a>().height() );
<a href="qspinbox.html">QSpinBox</a> *sb2 = new <a href="qspinbox.html">QSpinBox</a>( 0, 1000, 10, cell2 );
<a name="x611"></a> sb2-><a href="qspinbox.html#setSuffix">setSuffix</a>( " %" );
<a name="x610"></a> sb2-><a href="qspinbox.html#setSpecialValueText">setSpecialValueText</a>( "Automatic" );
<a href="qlabel.html">QLabel</a> *label3 = new <a href="qlabel.html">QLabel</a>( "Enter a price:", cell2 );
label3-><a href="qwidget.html#setMaximumHeight">setMaximumHeight</a>( label3-><a href="qwidget.html#sizeHint">sizeHint</a>().height() );
<a href="qspinbox.html">QSpinBox</a> *sb3 = new <a href="qspinbox.html">QSpinBox</a>( 0, INT_MAX, 1, cell2 );
<a name="x609"></a> sb3-><a href="qspinbox.html#setPrefix">setPrefix</a>( "$" );
sb3-><a href="qspinbox.html#setValue">setValue</a>( 355 );
(void)new <a href="qwidget.html">QWidget</a>( cell2 );
<a href="qhbox.html">QHBox</a> *row2 = new <a href="qhbox.html">QHBox</a>( this );
<a href="qvbox.html">QVBox</a> *cell3 = new <a href="qvbox.html">QVBox</a>( row2 );
cell3-><a href="qframe.html#setMargin">setMargin</a>( 10 );
cell3-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( QFrame::WinPanel | QFrame::Sunken );
<a href="qslider.html">QSlider</a> *hslider = new <a href="qslider.html">QSlider</a>( 0, 64, 1, 33, Qt::Horizontal, cell3 );
<a href="qlcdnumber.html">QLCDNumber</a> *lcd2 = new <a href="qlcdnumber.html">QLCDNumber</a>( 2, cell3 );
<a name="x606"></a> lcd2-><a href="qlcdnumber.html#display">display</a>( 33 );
<a name="x607"></a> lcd2-><a href="qlcdnumber.html#setSegmentStyle">setSegmentStyle</a>( QLCDNumber::Filled );
<a name="x608"></a> <a href="qobject.html#connect">connect</a>( hslider, SIGNAL( <a href="qslider.html#valueChanged">valueChanged</a>( int ) ), lcd2, SLOT( <a href="qlcdnumber.html#display">display</a>( int ) ) );
<a href="qhbox.html">QHBox</a> *cell4 = new <a href="qhbox.html">QHBox</a>( row2 );
cell4-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( QFrame::WinPanel | QFrame::Sunken );
cell4-><a href="qframe.html#setMargin">setMargin</a>( 10 );
<a href="qslider.html">QSlider</a> *vslider = new <a href="qslider.html">QSlider</a>( 0, 64, 1, 8, Qt::Vertical, cell4 );
<a href="qlcdnumber.html">QLCDNumber</a> *lcd3 = new <a href="qlcdnumber.html">QLCDNumber</a>( 3, cell4 );
lcd3-><a href="qlcdnumber.html#display">display</a>( 8 );
<a href="qobject.html#connect">connect</a>( vslider, SIGNAL( <a href="qslider.html#valueChanged">valueChanged</a>( int ) ), lcd3, SLOT( <a href="qlcdnumber.html#display">display</a>( int ) ) );
}
</pre>
<p> <hr>
<p> Main:
<p> <pre>/****************************************************************************
** $Id: qt/main.cpp 3.0.2 edited Oct 12 12:18 $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "rangecontrols.h"
#include <<a href="qapplication-h.html">qapplication.h</a>>
int main( int argc, char **argv )
{
<a href="qapplication.html">QApplication</a> a( argc, argv );
RangeControls rangecontrols;
rangecontrols.<a href="qwidget.html#resize">resize</a>( 500, 300 );
<a name="x618"></a> rangecontrols.<a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Range Control Widgets" );
a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &rangecontrols );
rangecontrols.<a href="qwidget.html#show">show</a>();
return a.<a href="qapplication.html#exec">exec</a>();
}
</pre>
<p>See also <a href="examples.html">Examples</a>.
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