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131 lines
4.6 KiB
131 lines
4.6 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial.doc:2374 -->
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<html>
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<title>t14/lcdrange.cpp Example File</title>
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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>t14/lcdrange.cpp Example File</h1>
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<pre>/****************************************************************
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**
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** Implementation of LCDRange class, TQt tutorial 12
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**
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****************************************************************/
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#include "lcdrange.h"
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#include <<a href="qslider-h.html">ntqslider.h</a>>
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#include <<a href="qlcdnumber-h.html">ntqlcdnumber.h</a>>
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#include <<a href="tqlabel-h.html">tqlabel.h</a>>
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#include <<a href="qlayout-h.html">ntqlayout.h</a>>
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<a name="f114"></a>LCDRange::LCDRange( <a href="tqwidget.html">TQWidget</a> *parent, const char *name )
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: <a href="tqwidget.html">TQWidget</a>( parent, name )
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{
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init();
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}
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LCDRange::LCDRange( const char *s, TQWidget *parent, const char *name )
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: <a href="tqwidget.html">TQWidget</a>( parent, name )
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{
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init();
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setText( s );
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}
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void <a name="f115"></a>LCDRange::init()
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{
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<a href="ntqlcdnumber.html">TQLCDNumber</a> *lcd = new <a href="ntqlcdnumber.html">TQLCDNumber</a>( 2, this, "lcd" );
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slider = new <a href="ntqslider.html">TQSlider</a>( Horizontal, this, "slider" );
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slider-><a href="ntqrangecontrol.html#setRange">setRange</a>( 0, 99 );
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slider-><a href="ntqslider.html#setValue">setValue</a>( 0 );
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label = new <a href="tqlabel.html">TQLabel</a>( " ", this, "label" );
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label-><a href="tqlabel.html#setAlignment">setAlignment</a>( AlignCenter );
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<a href="tqobject.html#connect">connect</a>( slider, TQ_SIGNAL(<a href="ntqslider.html#valueChanged">valueChanged</a>(int)),
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lcd, TQ_SLOT(<a href="ntqlcdnumber.html#display">display</a>(int)) );
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<a href="tqobject.html#connect">connect</a>( slider, TQ_SIGNAL(<a href="ntqslider.html#valueChanged">valueChanged</a>(int)),
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TQ_SIGNAL(valueChanged(int)) );
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<a href="tqwidget.html#setFocusProxy">setFocusProxy</a>( slider );
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<a href="qvboxlayout.html">TQVBoxLayout</a> * l = new <a href="qvboxlayout.html">TQVBoxLayout</a>( this );
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l-><a href="qboxlayout.html#addWidget">addWidget</a>( lcd, 1 );
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l-><a href="qboxlayout.html#addWidget">addWidget</a>( slider );
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l-><a href="qboxlayout.html#addWidget">addWidget</a>( label );
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}
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int <a name="f116"></a>LCDRange::value() const
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{
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return slider-><a href="ntqslider.html#value">value</a>();
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}
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const char *<a name="f117"></a>LCDRange::text() const
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{
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return label-><a href="tqlabel.html#text">text</a>();
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}
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void <a name="f118"></a>LCDRange::setValue( int value )
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{
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slider-><a href="ntqslider.html#setValue">setValue</a>( value );
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}
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void <a name="f119"></a>LCDRange::setRange( int minVal, int maxVal )
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{
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if ( minVal < 0 || maxVal > 99 || minVal > maxVal ) {
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<a href="ntqapplication.html#qWarning">tqWarning</a>( "LCDRange::setRange(%d,%d)\n"
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"\tRange must be 0..99\n"
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"\tand minVal must not be greater than maxVal",
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minVal, maxVal );
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return;
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}
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slider-><a href="ntqrangecontrol.html#setRange">setRange</a>( minVal, maxVal );
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}
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void <a name="f120"></a>LCDRange::setText( const char *s )
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{
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label-><a href="tqlabel.html#setText">setText</a>( s );
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}
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</pre><!-- eof -->
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