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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>QLCDNumber Class Reference</h1>
<p>The QLCDNumber widget displays a number with LCD-like digits.
<a href="#details">More...</a>
<p><tt>#include <<a href="qlcdnumber-h.html">qlcdnumber.h</a>></tt>
<p>Inherits <a href="qframe.html">QFrame</a>.
<p><a href="qlcdnumber-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class=fn><a href="#QLCDNumber"><b>QLCDNumber</b></a> ( QWidget * parent = 0, const char * name = 0 )</div></li>
<li><div class=fn><a href="#QLCDNumber-2"><b>QLCDNumber</b></a> ( uint numDigits, QWidget * parent = 0, const char * name = 0 )</div></li>
<li><div class=fn><a href="#~QLCDNumber"><b>~QLCDNumber</b></a> ()</div></li>
<li><div class=fn>enum <a href="#Mode-enum"><b>Mode</b></a> { Hex, Dec, Oct, Bin, HEX = Hex, DEC = Dec, OCT = Oct, BIN = Bin }</div></li>
<li><div class=fn>enum <a href="#SegmentStyle-enum"><b>SegmentStyle</b></a> { Outline, Filled, Flat }</div></li>
<li><div class=fn>bool <a href="#smallDecimalPoint"><b>smallDecimalPoint</b></a> () const</div></li>
<li><div class=fn>int <a href="#numDigits"><b>numDigits</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setNumDigits"><b>setNumDigits</b></a> ( int nDigits )</div></li>
<li><div class=fn>bool <a href="#checkOverflow"><b>checkOverflow</b></a> ( double num ) const</div></li>
<li><div class=fn>bool <a href="#checkOverflow-2"><b>checkOverflow</b></a> ( int num ) const</div></li>
<li><div class=fn>Mode <a href="#mode"><b>mode</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setMode"><b>setMode</b></a> ( Mode )</div></li>
<li><div class=fn>SegmentStyle <a href="#segmentStyle"><b>segmentStyle</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setSegmentStyle"><b>setSegmentStyle</b></a> ( SegmentStyle )</div></li>
<li><div class=fn>double <a href="#value"><b>value</b></a> () const</div></li>
<li><div class=fn>int <a href="#intValue"><b>intValue</b></a> () const</div></li>
</ul>
<h2>Public Slots</h2>
<ul>
<li><div class=fn>void <a href="#display-2"><b>display</b></a> ( const QString & s )</div></li>
<li><div class=fn>void <a href="#display"><b>display</b></a> ( int num )</div></li>
<li><div class=fn>void <a href="#display-3"><b>display</b></a> ( double num )</div></li>
<li><div class=fn>virtual void <a href="#setHexMode"><b>setHexMode</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#setDecMode"><b>setDecMode</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#setOctMode"><b>setOctMode</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#setBinMode"><b>setBinMode</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#setSmallDecimalPoint"><b>setSmallDecimalPoint</b></a> ( bool )</div></li>
</ul>
<h2>Signals</h2>
<ul>
<li><div class=fn>void <a href="#overflow"><b>overflow</b></a> ()</div></li>
</ul>
<h2>Properties</h2>
<ul>
<li><div class=fn>int <a href="#intValue-prop"><b>intValue</b></a> - the displayed value rounded to the nearest integer</div></li>
<li><div class=fn>Mode <a href="#mode-prop"><b>mode</b></a> - the current display mode (number base)</div></li>
<li><div class=fn>int <a href="#numDigits-prop"><b>numDigits</b></a> - the current number of digits displayed</div></li>
<li><div class=fn>SegmentStyle <a href="#segmentStyle-prop"><b>segmentStyle</b></a> - the style of the LCDNumber</div></li>
<li><div class=fn>bool <a href="#smallDecimalPoint-prop"><b>smallDecimalPoint</b></a> - the style of the decimal point</div></li>
<li><div class=fn>double <a href="#value-prop"><b>value</b></a> - the displayed value</div></li>
</ul>
<h2>Protected Members</h2>
<ul>
<li><div class=fn>virtual void <a href="#drawContents"><b>drawContents</b></a> ( QPainter * p )</div></li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
<p> The QLCDNumber widget displays a number with LCD-like digits.
<p>
<p> It can display a number in just about any size. It can display decimal,
hexadecimal, octal or binary numbers. It is easy to connect to
data sources using the <a href="#display">display</a>() slot, which is overloaded to take any
of five argument types.
<p> There are also slots to change the base with <a href="#setMode">setMode</a>() and the
decimal point with <a href="#setSmallDecimalPoint">setSmallDecimalPoint</a>().
<p> QLCDNumber emits the <a href="#overflow">overflow</a>() signal when it is asked to display
something beyond its range. The range is set by <a href="#setNumDigits">setNumDigits</a>(), but
setSmallDecimalPoint() also influences it.
<p> These digits and other symbols can be shown: 0/O, 1, 2, 3, 4, 5/S,
6, 7, 8, 9/g, minus, decimal point, A, B, C, D, E, F, h, H, L, o, P,
r, u, U, Y, colon, degree sign (which is specified as single quote
in the string) and space. QLCDNumber substitutes spaces for illegal
characters.
<p> It is not possible to retrieve the contents of a QLCDNumber object,
although you can retrieve the numeric value with <a href="#value">value</a>(). If you
really need the text, we recommend that you connect the signals that
feed the <a href="#display">display</a>() slot to another slot as well and store the value
there.
<p> Incidentally, QLCDNumber is the very oldest part of Qt, tracing back
to a BASIC program on the <a
href="http://www.nvg.ntnu.no/sinclair/spectrum.htm">Sinclair
Spectrum</a>.
<p> <img src=qlcdnum-m.png> <img src=qlcdnum-w.png>
<p> <p>See also <a href="qlabel.html">QLabel</a>, <a href="qframe.html">QFrame</a> and <a href="basic.html">Basic Widgets</a>.
<hr><h2>Member Type Documentation</h2>
<h3 class=fn><a name="Mode-enum"></a>QLCDNumber::Mode</h3>
<p> This type determines how numbers are shown. The possible values are:
<ul>
<li><tt>QLCDNumber::Hex</tt> - Hexadecimal
<li><tt>QLCDNumber::Dec</tt> - Decimal
<li><tt>QLCDNumber::Oct</tt> - Octal
<li><tt>QLCDNumber::Bin</tt> - Binary
</ul>
<h3 class=fn><a name="SegmentStyle-enum"></a>QLCDNumber::SegmentStyle</h3>
<p> This type determines the visual appearance of the QLCDNumber
widget. The possible values are:
<ul>
<li><tt>QLCDNumber::Outline</tt> - gives raised segments filled with the background brush.
<li><tt>QLCDNumber::Filled</tt> - gives raised segments filled with the foreground brush.
<li><tt>QLCDNumber::Flat</tt> - gives flat segments filled with the foreground brush.
</ul>
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QLCDNumber"></a>QLCDNumber::QLCDNumber ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
</h3>
Constructs an LCD number, sets the number of digits to 5, the base
to decimal, the decimal point mode to 'small' and the frame style to
a raised box. The <a href="#segmentStyle">segmentStyle</a>() is set to <a href="#SegmentStyle-enum">Outline</a>.
<p> The <em>parent</em> and <em>name</em> arguments are passed to the <a href="qframe.html">QFrame</a> constructor.
<p> <p>See also <a href="#numDigits-prop">numDigits</a> and <a href="#smallDecimalPoint-prop">smallDecimalPoint</a>.
<h3 class=fn><a name="QLCDNumber-2"></a>QLCDNumber::QLCDNumber ( uint numDigits, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
</h3>
Constructs an LCD number, sets the number of digits to <em>numDigits</em>, the
base to decimal, the decimal point mode to 'small' and the frame style
to a raised box. The <a href="#segmentStyle">segmentStyle</a>() is set to <a href="#SegmentStyle-enum">Outline</a>.
<p> The <em>parent</em> and <em>name</em> arguments are passed to the <a href="qframe.html">QFrame</a> constructor.
<p> <p>See also <a href="#numDigits-prop">numDigits</a> and <a href="#smallDecimalPoint-prop">smallDecimalPoint</a>.
<h3 class=fn><a name="~QLCDNumber"></a>QLCDNumber::~QLCDNumber ()
</h3>
Destroys the LCD number.
<h3 class=fn>bool <a name="checkOverflow"></a>QLCDNumber::checkOverflow ( double num ) const
</h3>
Returns TRUE if <em>num</em> is too big to be displayed in its entirety;
otherwise returns FALSE.
<p>See also <a href="#intValue-prop">intValue</a>, <a href="#numDigits-prop">numDigits</a> and <a href="#smallDecimalPoint-prop">smallDecimalPoint</a>.
<h3 class=fn>bool <a name="checkOverflow-2"></a>QLCDNumber::checkOverflow ( int num ) const
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Returns TRUE if <em>num</em> is too big to be displayed in its entirety;
otherwise returns FALSE.
<p>See also <a href="#intValue-prop">intValue</a>, <a href="#numDigits-prop">numDigits</a> and <a href="#smallDecimalPoint-prop">smallDecimalPoint</a>.
<h3 class=fn>void <a name="display"></a>QLCDNumber::display ( int num )<tt> [slot]</tt>
</h3><p>Sets the displayed value rounded to the nearest integer to <em>num</em>.
See the <a href="qlcdnumber.html#intValue-prop">"intValue"</a> property for details.
<h3 class=fn>void <a name="display-2"></a>QLCDNumber::display ( const <a href="qstring.html">QString</a> & s )<tt> [slot]</tt>
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Displays the number represented by the string <em>s</em>.
<p> This version of the function disregards <a href="#mode">mode</a>() and <a href="#smallDecimalPoint">smallDecimalPoint</a>().
<p> These digits and other symbols can be shown: 0/O, 1, 2, 3, 4, 5/S,
6, 7, 8, 9/g, minus, decimal point, A, B, C, D, E, F, h, H, L, o, P,
r, u, U, Y, colon, degree sign (which is specified as single quote
in the string) and space. QLCDNumber substitutes spaces for illegal
characters.
<h3 class=fn>void <a name="display-3"></a>QLCDNumber::display ( double num )<tt> [slot]</tt>
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Displays the number <em>num</em>.
<h3 class=fn>void <a name="drawContents"></a>QLCDNumber::drawContents ( <a href="qpainter.html">QPainter</a> * p )<tt> [virtual protected]</tt>
</h3>
Draws the LCD number using painter <em>p</em>. This function is called from
<a href="qframe.html#paintEvent">QFrame::paintEvent</a>().
<p>Reimplemented from <a href="qframe.html#drawContents">QFrame</a>.
<h3 class=fn>int <a name="intValue"></a>QLCDNumber::intValue () const
</h3><p>Returns the displayed value rounded to the nearest integer.
See the <a href="qlcdnumber.html#intValue-prop">"intValue"</a> property for details.
<h3 class=fn><a href="qlcdnumber.html#Mode-enum">Mode</a> <a name="mode"></a>QLCDNumber::mode () const
</h3><p>Returns the current display mode (number base).
See the <a href="qlcdnumber.html#mode-prop">"mode"</a> property for details.
<h3 class=fn>int <a name="numDigits"></a>QLCDNumber::numDigits () const
</h3><p>Returns the current number of digits displayed.
See the <a href="qlcdnumber.html#numDigits-prop">"numDigits"</a> property for details.
<h3 class=fn>void <a name="overflow"></a>QLCDNumber::overflow ()<tt> [signal]</tt>
</h3>
<p> This signal is emitted whenever the QLCDNumber is asked to display a
too-large number or a too-long string.
<p> It is never emitted by <a href="#setNumDigits">setNumDigits</a>().
<h3 class=fn><a href="qlcdnumber.html#SegmentStyle-enum">SegmentStyle</a> <a name="segmentStyle"></a>QLCDNumber::segmentStyle () const
</h3><p>Returns the style of the LCDNumber.
See the <a href="qlcdnumber.html#segmentStyle-prop">"segmentStyle"</a> property for details.
<h3 class=fn>void <a name="setBinMode"></a>QLCDNumber::setBinMode ()<tt> [virtual slot]</tt>
</h3>
Calls <a href="#setMode">setMode</a>( BIN ). Provided for convenience (e.g. for connecting
buttons to it).
<p> <p>See also <a href="#mode-prop">mode</a>, <a href="#setHexMode">setHexMode</a>(), <a href="#setDecMode">setDecMode</a>(), <a href="#setOctMode">setOctMode</a>() and <a href="#mode-prop">mode</a>.
<h3 class=fn>void <a name="setDecMode"></a>QLCDNumber::setDecMode ()<tt> [virtual slot]</tt>
</h3>
Calls <a href="#setMode">setMode</a>( DEC ). Provided for convenience (e.g. for connecting
buttons to it).
<p> <p>See also <a href="#mode-prop">mode</a>, <a href="#setHexMode">setHexMode</a>(), <a href="#setOctMode">setOctMode</a>(), <a href="#setBinMode">setBinMode</a>() and <a href="#mode-prop">mode</a>.
<h3 class=fn>void <a name="setHexMode"></a>QLCDNumber::setHexMode ()<tt> [virtual slot]</tt>
</h3>
Calls <a href="#setMode">setMode</a>( HEX ). Provided for convenience (e.g. for connecting
buttons to it).
<p> <p>See also <a href="#mode-prop">mode</a>, <a href="#setDecMode">setDecMode</a>(), <a href="#setOctMode">setOctMode</a>(), <a href="#setBinMode">setBinMode</a>() and <a href="#mode-prop">mode</a>.
<h3 class=fn>void <a name="setMode"></a>QLCDNumber::setMode ( <a href="qlcdnumber.html#Mode-enum">Mode</a> )<tt> [virtual]</tt>
</h3><p>Sets the current display mode (number base).
See the <a href="qlcdnumber.html#mode-prop">"mode"</a> property for details.
<h3 class=fn>void <a name="setNumDigits"></a>QLCDNumber::setNumDigits ( int nDigits )<tt> [virtual]</tt>
</h3><p>Sets the current number of digits displayed to <em>nDigits</em>.
See the <a href="qlcdnumber.html#numDigits-prop">"numDigits"</a> property for details.
<h3 class=fn>void <a name="setOctMode"></a>QLCDNumber::setOctMode ()<tt> [virtual slot]</tt>
</h3>
Calls <a href="#setMode">setMode</a>( OCT ). Provided for convenience (e.g. for connecting
buttons to it).
<p> <p>See also <a href="#mode-prop">mode</a>, <a href="#setHexMode">setHexMode</a>(), <a href="#setDecMode">setDecMode</a>(), <a href="#setBinMode">setBinMode</a>() and <a href="#mode-prop">mode</a>.
<h3 class=fn>void <a name="setSegmentStyle"></a>QLCDNumber::setSegmentStyle ( <a href="qlcdnumber.html#SegmentStyle-enum">SegmentStyle</a> )<tt> [virtual]</tt>
</h3><p>Sets the style of the LCDNumber.
See the <a href="qlcdnumber.html#segmentStyle-prop">"segmentStyle"</a> property for details.
<h3 class=fn>void <a name="setSmallDecimalPoint"></a>QLCDNumber::setSmallDecimalPoint ( bool )<tt> [virtual slot]</tt>
</h3><p>Sets the style of the decimal point.
See the <a href="qlcdnumber.html#smallDecimalPoint-prop">"smallDecimalPoint"</a> property for details.
<h3 class=fn>bool <a name="smallDecimalPoint"></a>QLCDNumber::smallDecimalPoint () const
</h3><p>Returns the style of the decimal point.
See the <a href="qlcdnumber.html#smallDecimalPoint-prop">"smallDecimalPoint"</a> property for details.
<h3 class=fn>double <a name="value"></a>QLCDNumber::value () const
</h3><p>Returns the displayed value.
See the <a href="qlcdnumber.html#value-prop">"value"</a> property for details.
<hr><h2>Property Documentation</h2>
<h3 class=fn>int <a name="intValue-prop"></a>intValue</h3>
<p>This property holds the displayed value rounded to the nearest integer.
<p>This property corresponds to the nearest integer to the
current value displayed by the LCDNumber.
<p> If the displayed value is not a number, the property has
a value of 0.
<p>Set this property's value with <a href="#display">display</a>() and get this property's value with <a href="#intValue">intValue</a>().
<h3 class=fn><a href="qlcdnumber.html#Mode-enum">Mode</a> <a name="mode-prop"></a>mode</h3>
<p>This property holds the current display mode (number base).
<p>Corresponds to the current display mode, which is one of <a href="#Mode-enum">BIN</a>, <a href="#Mode-enum">OCT</a>, <a href="#Mode-enum">DEC</a> (the default) and <a href="#Mode-enum">HEX</a>. All four modes can display
both integers, floating-point numbers and strings (subject to
character set limitations).
<p> <p>See also <a href="#smallDecimalPoint-prop">smallDecimalPoint</a>, <a href="#setHexMode">setHexMode</a>(), <a href="#setDecMode">setDecMode</a>(), <a href="#setOctMode">setOctMode</a>() and <a href="#setBinMode">setBinMode</a>().
<p>Set this property's value with <a href="#setMode">setMode</a>() and get this property's value with <a href="#mode">mode</a>().
<h3 class=fn>int <a name="numDigits-prop"></a>numDigits</h3>
<p>This property holds the current number of digits displayed.
<p>Corresponds to the current number of digits. If <a href="#smallDecimalPoint-prop">QLCDNumber::smallDecimalPoint</a> is FALSE, the decimal point occupies
one digit position.
<p> <p>See also <a href="#numDigits-prop">numDigits</a> and <a href="#smallDecimalPoint-prop">smallDecimalPoint</a>.
<p>Set this property's value with <a href="#setNumDigits">setNumDigits</a>() and get this property's value with <a href="#numDigits">numDigits</a>().
<h3 class=fn><a href="qlcdnumber.html#SegmentStyle-enum">SegmentStyle</a> <a name="segmentStyle-prop"></a>segmentStyle</h3>
<p>This property holds the style of the LCDNumber.
<p>The style of the QLCDNumber is one of:
<ul>
<li> <a href="#SegmentStyle-enum">Outline</a> gives raised segments filled with the background color (this is the default).
<li> <a href="#SegmentStyle-enum">Filled</a> gives raised segments filled with the foreground color.
<li> <a href="#SegmentStyle-enum">Flat</a> gives flat segments filled with the foreground color.
</ul>
<p> <a href="#SegmentStyle-enum">Outline</a> and <a href="#SegmentStyle-enum">Filled</a> will additionally use <a href="qcolorgroup.html#light">QColorGroup::light</a>()
and <a href="qcolorgroup.html#dark">QColorGroup::dark</a>() for shadow effects.
<p>
<p>Set this property's value with <a href="#setSegmentStyle">setSegmentStyle</a>() and get this property's value with <a href="#segmentStyle">segmentStyle</a>().
<h3 class=fn>bool <a name="smallDecimalPoint-prop"></a>smallDecimalPoint</h3>
<p>This property holds the style of the decimal point.
<p>If TRUE the decimal point is drawn between two
digit positions. Otherwise it occupies a digit position of its own,
i.e. is drawn in a digit position. The default is FALSE.
<p> The inter-digit space is made slightly wider when the decimal point
is drawn between the digits.
<p> <p>See also <a href="#mode-prop">mode</a>.
<p>Set this property's value with <a href="#setSmallDecimalPoint">setSmallDecimalPoint</a>() and get this property's value with <a href="#smallDecimalPoint">smallDecimalPoint</a>().
<h3 class=fn>double <a name="value-prop"></a>value</h3>
<p>This property holds the displayed value.
<p>This property corresponds to the current value displayed by the
LCDNumber.
<p> If the displayed value is not a number, the property has
a value of 0.
<p>Set this property's value with <a href="#display">display</a>() and get this property's value with <a href="#value">value</a>().
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright © 1995-2001
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<td>Copyright © 2001
<a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt version 3.0.2</div>
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