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421 lines
27 KiB
421 lines
27 KiB
13 years ago
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<!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/src/widgets/qlabel.cpp:66 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQLabel Class</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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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>TQLabel Class Reference</h1>
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<p>The TQLabel widget provides a text or image display.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qlabel-h.html">ntqlabel.h</a>></tt>
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<p>Inherits <a href="ntqframe.html">TQFrame</a>.
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<p><a href="qlabel-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQLabel"><b>TQLabel</b></a> ( TQWidget * parent, const char * name = 0, WFlags f = 0 )</li>
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<li class=fn><a href="#TQLabel-2"><b>TQLabel</b></a> ( const TQString & text, TQWidget * parent, const char * name = 0, WFlags f = 0 )</li>
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<li class=fn><a href="#TQLabel-3"><b>TQLabel</b></a> ( TQWidget * buddy, const TQString & text, TQWidget * parent, const char * name = 0, WFlags f = 0 )</li>
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<li class=fn><a href="#~TQLabel"><b>~TQLabel</b></a> ()</li>
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<li class=fn>TQString <a href="#text"><b>text</b></a> () const</li>
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<li class=fn>TQPixmap * <a href="#pixmap"><b>pixmap</b></a> () const</li>
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<li class=fn>TQPicture * <a href="#picture"><b>picture</b></a> () const</li>
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<li class=fn>TQMovie * <a href="#movie"><b>movie</b></a> () const</li>
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<li class=fn>TextFormat <a href="#textFormat"><b>textFormat</b></a> () const</li>
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<li class=fn>void <a href="#setTextFormat"><b>setTextFormat</b></a> ( TextFormat )</li>
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<li class=fn>int <a href="#alignment"><b>alignment</b></a> () const</li>
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<li class=fn>virtual void <a href="#setAlignment"><b>setAlignment</b></a> ( int )</li>
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<li class=fn>int <a href="#indent"><b>indent</b></a> () const</li>
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<li class=fn>void <a href="#setIndent"><b>setIndent</b></a> ( int )</li>
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<li class=fn>bool autoResize () const <em>(obsolete)</em></li>
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<li class=fn>virtual void setAutoResize ( bool enable ) <em>(obsolete)</em></li>
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<li class=fn>bool <a href="#hasScaledContents"><b>hasScaledContents</b></a> () const</li>
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<li class=fn>void <a href="#setScaledContents"><b>setScaledContents</b></a> ( bool )</li>
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<li class=fn>virtual void <a href="#setBuddy"><b>setBuddy</b></a> ( TQWidget * buddy )</li>
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<li class=fn>TQWidget * <a href="#buddy"><b>buddy</b></a> () const</li>
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<li class=fn>virtual void <a href="#setFont"><b>setFont</b></a> ( const TQFont & f )</li>
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</ul>
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<h2>Public Slots</h2>
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<ul>
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<li class=fn>virtual void <a href="#setText"><b>setText</b></a> ( const TQString & )</li>
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<li class=fn>virtual void <a href="#setPixmap"><b>setPixmap</b></a> ( const TQPixmap & )</li>
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<li class=fn>virtual void <a href="#setPicture"><b>setPicture</b></a> ( const TQPicture & picture )</li>
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<li class=fn>virtual void <a href="#setMovie"><b>setMovie</b></a> ( const TQMovie & movie )</li>
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<li class=fn>virtual void <a href="#setNum"><b>setNum</b></a> ( int num )</li>
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<li class=fn>virtual void <a href="#setNum-2"><b>setNum</b></a> ( double num )</li>
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<li class=fn>void <a href="#clear"><b>clear</b></a> ()</li>
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</ul>
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<h2>Properties</h2>
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<ul>
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<li class=fn>Alignment <a href="#alignment-prop"><b>alignment</b></a> - the alignment of the label's contents</li>
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<li class=fn>BackgroundMode <a href="#backgroundMode-prop"><b>backgroundMode</b></a> - the label's background mode <em>(read only)</em></li>
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<li class=fn>int <a href="#indent-prop"><b>indent</b></a> - the label's text indent in pixels</li>
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<li class=fn>TQPixmap <a href="#pixmap-prop"><b>pixmap</b></a> - the label's pixmap</li>
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<li class=fn>bool <a href="#scaledContents-prop"><b>scaledContents</b></a> - whether the label will scale its contents to fill all available space</li>
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<li class=fn>TQString <a href="#text-prop"><b>text</b></a> - the label's text</li>
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<li class=fn>TextFormat <a href="#textFormat-prop"><b>textFormat</b></a> - the label's text format</li>
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</ul>
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<h2>Protected Members</h2>
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<ul>
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<li class=fn>virtual void <a href="#drawContents"><b>drawContents</b></a> ( TQPainter * p )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQLabel widget provides a text or image display.
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<p>
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<p> TQLabel is used for displaying text or an image. No user
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interaction functionality is provided. The visual appearance of
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the label can be configured in various ways, and it can be used
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for specifying a focus accelerator key for another widget.
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<p> A TQLabel can contain any of the following content types:
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<center><table cellpadding="4" cellspacing="2" border="0">
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<tr bgcolor="#a2c511"> <th valign="top">Content <th valign="top">Setting
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<tr bgcolor="#f0f0f0"> <td valign="top">Plain text
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<td valign="top">Pass a <a href="ntqstring.html">TQString</a> to <a href="#setText">setText</a>().
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<tr bgcolor="#d0d0d0"> <td valign="top">Rich text
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<td valign="top">Pass a TQString that contains rich text to setText().
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<tr bgcolor="#f0f0f0"> <td valign="top">A pixmap
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<td valign="top">Pass a <a href="ntqpixmap.html">TQPixmap</a> to <a href="#setPixmap">setPixmap</a>().
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<tr bgcolor="#d0d0d0"> <td valign="top">A movie
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<td valign="top">Pass a <a href="ntqmovie.html">TQMovie</a> to <a href="#setMovie">setMovie</a>().
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<tr bgcolor="#f0f0f0"> <td valign="top">A number
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<td valign="top">Pass an <em>int</em> or a <em>double</em> to <a href="#setNum">setNum</a>(), which converts
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the number to plain text.
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<tr bgcolor="#d0d0d0"> <td valign="top">Nothing
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<td valign="top">The same as an empty plain text. This is the default. Set
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by <a href="#clear">clear</a>().
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</table></center>
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<p> When the content is changed using any of these functions, any
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previous content is cleared.
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<p> The look of a TQLabel can be tuned in several ways. All the
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settings of <a href="ntqframe.html">TQFrame</a> are available for specifying a widget frame.
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The positioning of the content within the TQLabel widget area can
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be tuned with <a href="#setAlignment">setAlignment</a>() and <a href="#setIndent">setIndent</a>(). For example, this
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code sets up a sunken panel with a two-line text in the bottom
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right corner (both lines being flush with the right side of the
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label):
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<pre>
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TQLabel *label = new TQLabel( this );
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label-><a href="ntqframe.html#setFrameStyle">setFrameStyle</a>( TQFrame::<a href="ntqframe.html#Shape-enum">Panel</a> | TQFrame::<a href="ntqframe.html#Shadow-enum">Sunken</a> );
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label-><a href="#setText">setText</a>( "first line\nsecond line" );
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label-><a href="#setAlignment">setAlignment</a>( AlignBottom | AlignRight );
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</pre>
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<p> A TQLabel is often used as a label for an interactive widget. For
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this use TQLabel provides a useful mechanism for adding an
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accelerator key (see <a href="ntqaccel.html">TQAccel</a>) that will set the <a href="focus.html#keyboard-focus">keyboard focus</a> to
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the other widget (called the TQLabel's "buddy"). For example:
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<pre>
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<a href="ntqlineedit.html">TQLineEdit</a>* phoneEdit = new <a href="ntqlineedit.html">TQLineEdit</a>( this, "phoneEdit" );
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TQLabel* phoneLabel = new TQLabel( phoneEdit, "&Phone:", this, "phoneLabel" );
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</pre>
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<p> In this example, keyboard focus is transferred to the label's
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buddy (the <a href="ntqlineedit.html">TQLineEdit</a>) when the user presses Alt+P. You can
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also use the <a href="#setBuddy">setBuddy</a>() function to accomplish the same thing.
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<p> <img src=qlabel-m.png> <img src=qlabel-w.png>
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<p> <p>See also <a href="ntqlineedit.html">TQLineEdit</a>, <a href="ntqtextedit.html">TQTextEdit</a>, <a href="ntqpixmap.html">TQPixmap</a>, <a href="ntqmovie.html">TQMovie</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Label</a>, <a href="basic.html">Basic Widgets</a>, and <a href="text.html">Text Related Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQLabel"></a>TQLabel::TQLabel ( <a href="ntqwidget.html">TQWidget</a> * parent, const char * name = 0, WFlags f = 0 )
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</h3>
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Constructs an empty label.
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<p> The <em>parent</em>, <em>name</em> and <a href="ntqt.html#WidgetFlags">widget flag</a> <em>f</em>, arguments are passed
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to the <a href="ntqframe.html">TQFrame</a> constructor.
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<p> <p>See also <a href="#alignment-prop">alignment</a>, <a href="ntqframe.html#setFrameStyle">setFrameStyle</a>(), and <a href="#indent-prop">indent</a>.
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<h3 class=fn><a name="TQLabel-2"></a>TQLabel::TQLabel ( const <a href="ntqstring.html">TQString</a> & text, <a href="ntqwidget.html">TQWidget</a> * parent, const char * name = 0, WFlags f = 0 )
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</h3>
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Constructs a label that displays the text, <em>text</em>.
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<p> The <em>parent</em>, <em>name</em> and <a href="ntqt.html#WidgetFlags">widget flag</a> <em>f</em>, arguments are passed
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to the <a href="ntqframe.html">TQFrame</a> constructor.
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<p> <p>See also <a href="#text-prop">text</a>, <a href="#alignment-prop">alignment</a>, <a href="ntqframe.html#setFrameStyle">setFrameStyle</a>(), and <a href="#indent-prop">indent</a>.
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<h3 class=fn><a name="TQLabel-3"></a>TQLabel::TQLabel ( <a href="ntqwidget.html">TQWidget</a> * buddy, const <a href="ntqstring.html">TQString</a> & text, <a href="ntqwidget.html">TQWidget</a> * parent, const char * name = 0, WFlags f = 0 )
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</h3>
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Constructs a label that displays the text <em>text</em>. The label has a
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buddy widget, <em>buddy</em>.
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<p> If the <em>text</em> contains an underlined letter (a letter preceded by
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an ampersand, &), and the text is in plain text format, when the
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user presses Alt+ the underlined letter, focus is passed to the
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buddy widget.
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<p> The <em>parent</em>, <em>name</em> and <a href="ntqt.html#WidgetFlags">widget flag</a>, <em>f</em>, arguments are passed
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to the <a href="ntqframe.html">TQFrame</a> constructor.
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<p> <p>See also <a href="#text-prop">text</a>, <a href="#setBuddy">setBuddy</a>(), <a href="#alignment-prop">alignment</a>, <a href="ntqframe.html#setFrameStyle">setFrameStyle</a>(), and <a href="#indent-prop">indent</a>.
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<h3 class=fn><a name="~TQLabel"></a>TQLabel::~TQLabel ()
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</h3>
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Destroys the label.
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<h3 class=fn>int <a name="alignment"></a>TQLabel::alignment () const
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</h3><p>Returns the alignment of the label's contents.
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See the <a href="ntqlabel.html#alignment-prop">"alignment"</a> property for details.
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<h3 class=fn>bool <a name="autoResize"></a>TQLabel::autoResize () const
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</h3>
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<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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<p> Returns TRUE if auto-resizing is enabled, or FALSE if auto-resizing
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is disabled.
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<p> Auto-resizing is disabled by default.
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<p> <p>See also <a href="#setAutoResize">setAutoResize</a>().
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<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="buddy"></a>TQLabel::buddy () const
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</h3>
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Returns this label's buddy, or 0 if no buddy is currently set.
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<p> <p>See also <a href="#setBuddy">setBuddy</a>().
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<h3 class=fn>void <a name="clear"></a>TQLabel::clear ()<tt> [slot]</tt>
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</h3>
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Clears any label contents. Equivalent to <a href="#setText">setText</a>( "" ).
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<h3 class=fn>void <a name="drawContents"></a>TQLabel::drawContents ( <a href="ntqpainter.html">TQPainter</a> * p )<tt> [virtual protected]</tt>
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</h3>
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Draws the label contents using the painter <em>p</em>.
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<p>Reimplemented from <a href="ntqframe.html#drawContents">TQFrame</a>.
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<h3 class=fn>bool <a name="hasScaledContents"></a>TQLabel::hasScaledContents () const
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</h3><p>Returns TRUE if the label will scale its contents to fill all available space; otherwise returns FALSE.
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See the <a href="ntqlabel.html#scaledContents-prop">"scaledContents"</a> property for details.
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<h3 class=fn>int <a name="indent"></a>TQLabel::indent () const
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</h3><p>Returns the label's text indent in pixels.
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See the <a href="ntqlabel.html#indent-prop">"indent"</a> property for details.
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<h3 class=fn><a href="ntqmovie.html">TQMovie</a> * <a name="movie"></a>TQLabel::movie () const
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</h3>
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Returns a pointer to the label's movie, or 0 if no movie has been
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set.
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<p> <p>See also <a href="#setMovie">setMovie</a>().
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<h3 class=fn><a href="ntqpicture.html">TQPicture</a> * <a name="picture"></a>TQLabel::picture () const
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</h3>
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<p> Returns the label's picture or 0 if the label doesn't have a
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picture.
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<h3 class=fn><a href="ntqpixmap.html">TQPixmap</a> * <a name="pixmap"></a>TQLabel::pixmap () const
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</h3><p>Returns the label's pixmap.
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See the <a href="ntqlabel.html#pixmap-prop">"pixmap"</a> property for details.
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<h3 class=fn>void <a name="setAlignment"></a>TQLabel::setAlignment ( int )<tt> [virtual]</tt>
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</h3><p>Sets the alignment of the label's contents.
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See the <a href="ntqlabel.html#alignment-prop">"alignment"</a> property for details.
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<h3 class=fn>void <a name="setAutoResize"></a>TQLabel::setAutoResize ( bool enable )<tt> [virtual]</tt>
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</h3> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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|
|
<p> Enables auto-resizing if <em>enable</em> is TRUE, or disables it if <em>enable</em> is FALSE.
|
||
|
|
<p> When auto-resizing is enabled the label will resize itself to fit
|
||
|
|
the contents whenever the contents change. The top-left corner is
|
||
|
|
not moved. This is useful for TQLabel widgets that are not managed by
|
||
|
13 years ago
|
a <a href="ntqlayout.html">TQLayout</a> (e.g., top-level widgets).
|
||
|
13 years ago
|
<p> Auto-resizing is disabled by default.
|
||
|
13 years ago
|
<p> <p>See also <a href="#autoResize">autoResize</a>(), <a href="ntqwidget.html#adjustSize">adjustSize</a>(), and <a href="ntqwidget.html#sizeHint-prop">sizeHint</a>.
|
||
|
13 years ago
|
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setBuddy"></a>TQLabel::setBuddy ( <a href="ntqwidget.html">TQWidget</a> * buddy )<tt> [virtual]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Sets this label's buddy to <em>buddy</em>.
|
||
|
|
<p> When the user presses the accelerator key indicated by this label,
|
||
|
|
the <a href="focus.html#keyboard-focus">keyboard focus</a> is transferred to the label's buddy widget.
|
||
|
|
<p> The buddy mechanism is only available for TQLabels that contain
|
||
|
|
plain text in which one letter is prefixed with an ampersand, &.
|
||
|
|
This letter is set as the accelerator key. The letter is displayed
|
||
|
13 years ago
|
underlined, and the '&' is not displayed (i.e. the <a href="ntqt.html#TextFlags-enum">ShowPrefix</a>
|
||
|
13 years ago
|
alignment flag is turned on; see <a href="#setAlignment">setAlignment</a>()).
|
||
|
|
<p> In a dialog, you might create two data entry widgets and a label
|
||
|
|
for each, and set up the geometry layout so each label is just to
|
||
|
|
the left of its data entry widget (its "buddy"), for example:
|
||
|
|
<pre>
|
||
|
13 years ago
|
<a href="ntqlineedit.html">TQLineEdit</a> *nameEd = new <a href="ntqlineedit.html">TQLineEdit</a>( this );
|
||
|
13 years ago
|
TQLabel *nameLb = new TQLabel( "&Name:", this );
|
||
|
|
nameLb-><a href="#setBuddy">setBuddy</a>( nameEd );
|
||
|
13 years ago
|
<a href="ntqlineedit.html">TQLineEdit</a> *phoneEd = new <a href="ntqlineedit.html">TQLineEdit</a>( this );
|
||
|
13 years ago
|
TQLabel *phoneLb = new TQLabel( "&Phone:", this );
|
||
|
|
phoneLb-><a href="#setBuddy">setBuddy</a>( phoneEd );
|
||
|
|
// ( layout setup not shown )
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
<p> With the code above, the focus jumps to the Name field when the
|
||
|
|
user presses Alt+N, and to the Phone field when the user presses
|
||
|
|
Alt+P.
|
||
|
|
<p> To unset a previously set buddy, call this function with <em>buddy</em>
|
||
|
|
set to 0.
|
||
|
13 years ago
|
<p> <p>See also <a href="#buddy">buddy</a>(), <a href="#text-prop">text</a>, <a href="ntqaccel.html">TQAccel</a>, and <a href="#alignment-prop">alignment</a>.
|
||
|
13 years ago
|
|
||
|
|
<p>Examples: <a href="addressbook-example.html#x580">addressbook/centralwidget.cpp</a>, <a href="tutorial2-09.html#x2642">chart/optionsform.cpp</a>, and <a href="regexptester-example.html#x2482">regexptester/regexptester.cpp</a>.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setFont"></a>TQLabel::setFont ( const <a href="ntqfont.html">TQFont</a> & f )<tt> [virtual]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Sets the font used on the TQLabel to font <em>f</em>.
|
||
|
|
|
||
|
|
<p>Example: <a href="menu-example.html#x1865">menu/menu.cpp</a>.
|
||
|
13 years ago
|
<p>Reimplemented from <a href="ntqwidget.html#setFont">TQWidget</a>.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setIndent"></a>TQLabel::setIndent ( int )
|
||
|
|
</h3><p>Sets the label's text indent in pixels.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#indent-prop">"indent"</a> property for details.
|
||
|
|
<h3 class=fn>void <a name="setMovie"></a>TQLabel::setMovie ( const <a href="ntqmovie.html">TQMovie</a> & movie )<tt> [virtual slot]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Sets the label contents to <em>movie</em>. Any previous content is
|
||
|
|
cleared.
|
||
|
|
<p> The buddy accelerator, if any, is disabled.
|
||
|
|
<p> The label resizes itself if auto-resizing is enabled.
|
||
|
|
<p> <p>See also <a href="#movie">movie</a>() and <a href="#setBuddy">setBuddy</a>().
|
||
|
|
|
||
|
|
<h3 class=fn>void <a name="setNum"></a>TQLabel::setNum ( int num )<tt> [virtual slot]</tt>
|
||
|
|
</h3>
|
||
|
|
Sets the label contents to plain text containing the textual
|
||
|
|
representation of integer <em>num</em>. Any previous content is cleared.
|
||
|
|
Does nothing if the integer's string representation is the same as
|
||
|
|
the current contents of the label.
|
||
|
|
<p> The buddy accelerator, if any, is disabled.
|
||
|
|
<p> The label resizes itself if auto-resizing is enabled.
|
||
|
13 years ago
|
<p> <p>See also <a href="#text-prop">text</a>, <a href="ntqstring.html#setNum">TQString::setNum</a>(), and <a href="#setBuddy">setBuddy</a>().
|
||
|
13 years ago
|
|
||
|
|
<h3 class=fn>void <a name="setNum-2"></a>TQLabel::setNum ( double num )<tt> [virtual slot]</tt>
|
||
|
|
</h3>
|
||
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
||
|
|
<p> Sets the label contents to plain text containing the textual
|
||
|
|
representation of double <em>num</em>. Any previous content is cleared.
|
||
|
|
Does nothing if the double's string representation is the same as
|
||
|
|
the current contents of the label.
|
||
|
|
<p> The buddy accelerator, if any, is disabled.
|
||
|
|
<p> The label resizes itself if auto-resizing is enabled.
|
||
|
13 years ago
|
<p> <p>See also <a href="#text-prop">text</a>, <a href="ntqstring.html#setNum">TQString::setNum</a>(), and <a href="#setBuddy">setBuddy</a>().
|
||
|
13 years ago
|
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setPicture"></a>TQLabel::setPicture ( const <a href="ntqpicture.html">TQPicture</a> & picture )<tt> [virtual slot]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Sets the label contents to <em>picture</em>. Any previous content is
|
||
|
|
cleared.
|
||
|
|
<p> The buddy accelerator, if any, is disabled.
|
||
|
|
<p> <p>See also <a href="#picture">picture</a>() and <a href="#setBuddy">setBuddy</a>().
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setPixmap"></a>TQLabel::setPixmap ( const <a href="ntqpixmap.html">TQPixmap</a> & )<tt> [virtual slot]</tt>
|
||
|
13 years ago
|
</h3><p>Sets the label's pixmap.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#pixmap-prop">"pixmap"</a> property for details.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setScaledContents"></a>TQLabel::setScaledContents ( bool )
|
||
|
|
</h3><p>Sets whether the label will scale its contents to fill all available space.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#scaledContents-prop">"scaledContents"</a> property for details.
|
||
|
|
<h3 class=fn>void <a name="setText"></a>TQLabel::setText ( const <a href="ntqstring.html">TQString</a> & )<tt> [virtual slot]</tt>
|
||
|
13 years ago
|
</h3><p>Sets the label's text.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#text-prop">"text"</a> property for details.
|
||
|
|
<h3 class=fn>void <a name="setTextFormat"></a>TQLabel::setTextFormat ( <a href="ntqt.html#TextFormat-enum">TextFormat</a> )
|
||
|
13 years ago
|
</h3><p>Sets the label's text format.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#textFormat-prop">"textFormat"</a> property for details.
|
||
|
|
<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="text"></a>TQLabel::text () const
|
||
|
13 years ago
|
</h3><p>Returns the label's text.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#text-prop">"text"</a> property for details.
|
||
|
|
<h3 class=fn><a href="ntqt.html#TextFormat-enum">TextFormat</a> <a name="textFormat"></a>TQLabel::textFormat () const
|
||
|
13 years ago
|
</h3><p>Returns the label's text format.
|
||
|
13 years ago
|
See the <a href="ntqlabel.html#textFormat-prop">"textFormat"</a> property for details.
|
||
|
13 years ago
|
<hr><h2>Property Documentation</h2>
|
||
|
|
<h3 class=fn>Alignment <a name="alignment-prop"></a>alignment</h3>
|
||
|
|
<p>This property holds the alignment of the label's contents.
|
||
|
13 years ago
|
<p>The alignment is a bitwise OR of <a href="ntqt.html#AlignmentFlags-enum">TQt::AlignmentFlags</a> and <a href="ntqt.html#TextFlags-enum">TQt::TextFlags</a> values. The <a href="ntqt.html#TextFlags-enum">ExpandTabs</a>, <a href="ntqt.html#TextFlags-enum">SingleLine</a> and <a href="ntqt.html#TextFlags-enum">ShowPrefix</a> flags apply only if the label contains plain text;
|
||
|
|
otherwise they are ignored. The <a href="ntqt.html#TextFlags-enum">DontClip</a> flag is always
|
||
|
|
ignored. <a href="ntqt.html#TextFlags-enum">WordBreak</a> applies to both rich text and plain text
|
||
|
|
labels. The <a href="ntqt.html#TextFlags-enum">BreakAnywhere</a> flag is not supported in TQLabel.
|
||
|
|
<p> If the label has a buddy, the <a href="ntqt.html#TextFlags-enum">ShowPrefix</a> flag is forced to
|
||
|
13 years ago
|
TRUE.
|
||
|
|
<p> The default alignment is <tt>AlignAuto | AlignVCenter | ExpandTabs</tt>
|
||
|
|
if the label doesn't have a buddy and <tt>AlignAuto | AlignVCenter | ExpandTabs | ShowPrefix</tt> if the label has a buddy. If the label
|
||
|
13 years ago
|
contains rich text, additionally <a href="ntqt.html#TextFlags-enum">WordBreak</a> is turned on.
|
||
|
|
<p> <p>See also <a href="ntqt.html#AlignmentFlags-enum">TQt::AlignmentFlags</a>, <a href="#setBuddy">setBuddy</a>(), and <a href="#text-prop">text</a>.
|
||
|
13 years ago
|
|
||
|
|
<p>Set this property's value with <a href="#setAlignment">setAlignment</a>() and get this property's value with <a href="#alignment">alignment</a>().
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqt.html#BackgroundMode-enum">BackgroundMode</a> <a name="backgroundMode-prop"></a>backgroundMode</h3>
|
||
|
13 years ago
|
<p>This property holds the label's background mode.
|
||
|
13 years ago
|
<p>Get this property with <a href="ntqwidget.html#backgroundMode">backgroundMode</a>().
|
||
|
|
<p> <p>See also <a href="ntqwidget.html#backgroundMode-prop">TQWidget::backgroundMode</a>.
|
||
|
13 years ago
|
|
||
|
|
<p><h3 class=fn>int <a name="indent-prop"></a>indent</h3>
|
||
|
|
<p>This property holds the label's text indent in pixels.
|
||
|
|
<p>If a label displays text, the indent applies to the left edge if
|
||
|
13 years ago
|
<a href="#alignment">alignment</a>() is <a href="ntqt.html#AlignmentFlags-enum">AlignLeft</a>, to the right edge if alignment() is
|
||
|
|
<a href="ntqt.html#AlignmentFlags-enum">AlignRight</a>, to the top edge if alignment() is <a href="ntqt.html#AlignmentFlags-enum">AlignTop</a>, and
|
||
|
|
to to the bottom edge if alignment() is <a href="ntqt.html#AlignmentFlags-enum">AlignBottom</a>.
|
||
|
13 years ago
|
<p> If indent is negative, or if no indent has been set, the label
|
||
|
13 years ago
|
computes the effective indent as follows: If <a href="ntqframe.html#frameWidth">frameWidth</a>() is 0,
|
||
|
13 years ago
|
the effective indent becomes 0. If frameWidth() is greater than 0,
|
||
|
|
the effective indent becomes half the width of the "x" character
|
||
|
13 years ago
|
of the widget's current <a href="ntqwidget.html#font">font</a>().
|
||
|
|
<p> <p>See also <a href="#alignment-prop">alignment</a>, <a href="ntqframe.html#frameWidth-prop">frameWidth</a>, and <a href="ntqwidget.html#font-prop">font</a>.
|
||
|
13 years ago
|
|
||
|
|
<p>Set this property's value with <a href="#setIndent">setIndent</a>() and get this property's value with <a href="#indent">indent</a>().
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqpixmap.html">TQPixmap</a> <a name="pixmap-prop"></a>pixmap</h3>
|
||
|
13 years ago
|
<p>This property holds the label's pixmap.
|
||
|
|
<p>If no pixmap has been set this will return an invalid pixmap.
|
||
|
|
<p> Setting the pixmap clears any previous content, and resizes the
|
||
|
|
label if <a href="#autoResize">TQLabel::autoResize</a>() is TRUE. The buddy accelerator,
|
||
|
|
if any, is disabled.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setPixmap">setPixmap</a>() and get this property's value with <a href="#pixmap">pixmap</a>().
|
||
|
|
<h3 class=fn>bool <a name="scaledContents-prop"></a>scaledContents</h3>
|
||
|
|
<p>This property holds whether the label will scale its contents to fill all available space.
|
||
|
|
<p>When enabled and the label shows a pixmap, it will scale the
|
||
|
|
pixmap to fill the available space.
|
||
|
|
<p> This property's default is FALSE.
|
||
|
|
<p> <p>See also <a href="#scaledContents-prop">scaledContents</a>.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setScaledContents">setScaledContents</a>() and get this property's value with <a href="#hasScaledContents">hasScaledContents</a>().
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="text-prop"></a>text</h3>
|
||
|
13 years ago
|
<p>This property holds the label's text.
|
||
|
|
<p>If no text has been set this will return an empty string. Setting
|
||
|
|
the text clears any previous content, unless they are the same.
|
||
|
|
<p> The text will be interpreted either as a plain text or as a rich
|
||
|
|
text, depending on the text format setting; see <a href="#setTextFormat">setTextFormat</a>().
|
||
|
13 years ago
|
The default setting is <a href="ntqt.html#TextFormat-enum">AutoText</a>, i.e. TQLabel will try to
|
||
|
13 years ago
|
auto-detect the format of the text set.
|
||
|
|
<p> If the text is interpreted as a plain text and a buddy has been
|
||
|
|
set, the buddy accelerator key is updated from the new text.
|
||
|
|
<p> The label resizes itself if auto-resizing is enabled.
|
||
|
|
<p> Note that Qlabel is well-suited to display small rich text
|
||
|
|
documents, i.e. those small documents that get their document
|
||
|
|
specific settings (font, text color, link color) from the label's
|
||
|
13 years ago
|
palette and font properties. For large documents, use <a href="ntqtextedit.html">TQTextEdit</a>
|
||
|
13 years ago
|
in read-only mode instead. TQTextEdit will flicker less on resize
|
||
|
|
and can also provide a scrollbar when necessary.
|
||
|
|
<p> <p>See also <a href="#textFormat-prop">textFormat</a>, <a href="#setBuddy">setBuddy</a>(), and <a href="#alignment-prop">alignment</a>.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setText">setText</a>() and get this property's value with <a href="#text">text</a>().
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqt.html#TextFormat-enum">TextFormat</a> <a name="textFormat-prop"></a>textFormat</h3>
|
||
|
13 years ago
|
<p>This property holds the label's text format.
|
||
|
13 years ago
|
<p>See the <a href="ntqt.html#TextFormat-enum">TQt::TextFormat</a> enum for an explanation of the possible
|
||
|
13 years ago
|
options.
|
||
|
13 years ago
|
<p> The default format is <a href="ntqt.html#TextFormat-enum">AutoText</a>.
|
||
|
13 years ago
|
<p> <p>See also <a href="#text-prop">text</a>.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setTextFormat">setTextFormat</a>() and get this property's value with <a href="#textFormat">textFormat</a>().
|
||
|
|
<!-- eof -->
|
||
|
|
<hr><p>
|
||
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
||
|
|
Copyright © 1995-2007
|
||
|
|
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<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>TQt 3.3.8</div>
|
||
|
|
</table></div></address></body>
|
||
|
|
</html>
|