<!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/src/widgets/qstatusbar.cpp:49 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>TQStatusBar Class</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>TQStatusBar Class Reference</h1> <p>The TQStatusBar class provides a horizontal bar suitable for presenting status information. <a href="#details">More...</a> <p><tt>#include <<a href="qstatusbar-h.html">ntqstatusbar.h</a>></tt> <p>Inherits <a href="ntqwidget.html">TQWidget</a>. <p><a href="qstatusbar-members.html">List of all member functions.</a> <h2>Public Members</h2> <ul> <li class=fn><a href="#TQStatusBar"><b>TQStatusBar</b></a> ( TQWidget * parent = 0, const char * name = 0 )</li> <li class=fn>virtual <a href="#~TQStatusBar"><b>~TQStatusBar</b></a> ()</li> <li class=fn>virtual void <a href="#addWidget"><b>addWidget</b></a> ( TQWidget * widget, int stretch = 0, bool permanent = FALSE )</li> <li class=fn>virtual void <a href="#removeWidget"><b>removeWidget</b></a> ( TQWidget * widget )</li> <li class=fn>void <a href="#setSizeGripEnabled"><b>setSizeGripEnabled</b></a> ( bool )</li> <li class=fn>bool <a href="#isSizeGripEnabled"><b>isSizeGripEnabled</b></a> () const</li> </ul> <h2>Public Slots</h2> <ul> <li class=fn>void <a href="#message"><b>message</b></a> ( const TQString & message )</li> <li class=fn>void <a href="#message-2"><b>message</b></a> ( const TQString & message, int ms )</li> <li class=fn>void <a href="#clear"><b>clear</b></a> ()</li> </ul> <h2>Signals</h2> <ul> <li class=fn>void <a href="#messageChanged"><b>messageChanged</b></a> ( const TQString & message )</li> </ul> <h2>Properties</h2> <ul> <li class=fn>bool <a href="#sizeGripEnabled-prop"><b>sizeGripEnabled</b></a> - whether the TQSizeGrip in the bottom right of the status bar is enabled</li> </ul> <h2>Protected Members</h2> <ul> <li class=fn>virtual void <a href="#paintEvent"><b>paintEvent</b></a> ( TQPaintEvent * )</li> <li class=fn>void <a href="#reformat"><b>reformat</b></a> ()</li> <li class=fn>void <a href="#hideOrShow"><b>hideOrShow</b></a> ()</li> </ul> <hr><a name="details"></a><h2>Detailed Description</h2> The TQStatusBar class provides a horizontal bar suitable for presenting status information. <p> <p> Each status indicator falls into one of three categories: <p> <ul> <li> <em>Temporary</em> - briefly occupies most of the status bar. Used to explain tool tip texts or menu entries, for example. <li> <em>Normal</em> - occupies part of the status bar and may be hidden by temporary messages. Used to display the page and line number in a word processor, for example. <li> <em>Permanent</em> - is never hidden. Used for important mode indications, for example, some applications put a Caps Lock indicator in the status bar. </ul> <p> TQStatusBar lets you display all three types of indicators. <p> To display a <em>temporary</em> message, call <a href="#message">message</a>() (perhaps by connecting a suitable signal to it). To remove a temporary message, call <a href="#clear">clear</a>(). There are two variants of message(): one that displays the message until the next clear() or message() and one that has a time limit: <p> <pre> <a href="ntqobject.html#connect">connect</a>( loader, SIGNAL(progressMessage(const <a href="ntqstring.html">TQString</a>&)), statusBar(), SLOT(<a href="#message">message</a>(const <a href="ntqstring.html">TQString</a>&)) ); statusBar()->message("Loading..."); // Initial message loader.loadStuff(); // Emits progress messages statusBar()->message("Done.", 2000); // Final message for 2 seconds </pre> <p> <em>Normal</em> and <em>Permanent</em> messages are displayed by creating a small widget and then adding it to the status bar with <a href="#addWidget">addWidget</a>(). Widgets like <a href="ntqlabel.html">TQLabel</a>, <a href="ntqprogressbar.html">TQProgressBar</a> or even <a href="ntqtoolbutton.html">TQToolButton</a> are useful for adding to status bars. <a href="#removeWidget">removeWidget</a>() is used to remove widgets. <p> <pre> statusBar()->addWidget(new MyReadWriteIndication(statusBar())); </pre> <p> By default TQStatusBar provides a <a href="ntqsizegrip.html">TQSizeGrip</a> in the lower-right corner. You can disable it with <a href="#setSizeGripEnabled">setSizeGripEnabled</a>(FALSE); <p> <img src=qstatusbar-m.png> <img src=qstatusbar-w.png> <p> <p>See also <a href="ntqtoolbar.html">TQToolBar</a>, <a href="ntqmainwindow.html">TQMainWindow</a>, <a href="ntqlabel.html">TQLabel</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Status Bar</a>, <a href="application.html">Main Window and Related Classes</a>, and <a href="helpsystem.html">Help System</a>. <hr><h2>Member Function Documentation</h2> <h3 class=fn><a name="TQStatusBar"></a>TQStatusBar::TQStatusBar ( <a href="ntqwidget.html">TQWidget</a> * parent = 0, const char * name = 0 ) </h3> Constructs a status bar called <em>name</em> with parent <em>parent</em> and with a size grip. <p> <p>See also <a href="#sizeGripEnabled-prop">sizeGripEnabled</a>. <h3 class=fn><a name="~TQStatusBar"></a>TQStatusBar::~TQStatusBar ()<tt> [virtual]</tt> </h3> Destroys the status bar and frees any allocated resources and child widgets. <h3 class=fn>void <a name="addWidget"></a>TQStatusBar::addWidget ( <a href="ntqwidget.html">TQWidget</a> * widget, int stretch = 0, bool permanent = FALSE )<tt> [virtual]</tt> </h3> Adds <em>widget</em> to this status bar. <em>widget</em> is reparented if it isn't already a child of the TQStatusBar. <p> <em>widget</em> is permanently visible if <em>permanent</em> is TRUE and may be obscured by temporary messages if <em>permanent</em> is FALSE. The default is FALSE. <p> If <em>permanent</em> is TRUE, <em>widget</em> is located at the far right of the status bar. If <em>permanent</em> is FALSE (the default), <em>widget</em> is located just to the left of the first permanent widget. <p> <em>stretch</em> is used to compute a suitable size for <em>widget</em> as the status bar grows and shrinks. The default of 0 uses a minimum of space. <p> This function may cause some flicker. <p> <p>See also <a href="#removeWidget">removeWidget</a>(). <h3 class=fn>void <a name="clear"></a>TQStatusBar::clear ()<tt> [slot]</tt> </h3> Removes any temporary message being shown. <p> <p>See also <a href="#message">message</a>(). <h3 class=fn>void <a name="hideOrShow"></a>TQStatusBar::hideOrShow ()<tt> [protected]</tt> </h3> Ensures that the right widgets are visible. Used by <a href="#message">message</a>() and <a href="#clear">clear</a>(). <h3 class=fn>bool <a name="isSizeGripEnabled"></a>TQStatusBar::isSizeGripEnabled () const </h3><p>Returns TRUE if the <a href="ntqsizegrip.html">TQSizeGrip</a> in the bottom right of the status bar is enabled; otherwise returns FALSE. See the <a href="ntqstatusbar.html#sizeGripEnabled-prop">"sizeGripEnabled"</a> property for details. <h3 class=fn>void <a name="message"></a>TQStatusBar::message ( const <a href="ntqstring.html">TQString</a> & message )<tt> [slot]</tt> </h3> Hides the normal status indicators and displays <em>message</em> until <a href="#clear">clear</a>() or another <a href="#message">message</a>() is called. <p> <p>See also <a href="#clear">clear</a>(). <p>Example: <a href="regexptester-example.html#x2494">regexptester/regexptester.cpp</a>. <h3 class=fn>void <a name="message-2"></a>TQStatusBar::message ( const <a href="ntqstring.html">TQString</a> & message, int ms )<tt> [slot]</tt> </h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function. <p> Hides the normal status indications and displays <em>message</em> for <em>ms</em> milli-seconds or until <a href="#clear">clear</a>() or another <a href="#message">message</a>() is called, whichever occurs first. <h3 class=fn>void <a name="messageChanged"></a>TQStatusBar::messageChanged ( const <a href="ntqstring.html">TQString</a> & message )<tt> [signal]</tt> </h3> <p> This signal is emitted when the temporary status messages changes. <em>message</em> is the new temporary message, and is a null-string when the message has been removed. <p> <p>See also <a href="#message">message</a>() and <a href="#clear">clear</a>(). <h3 class=fn>void <a name="paintEvent"></a>TQStatusBar::paintEvent ( <a href="qpaintevent.html">TQPaintEvent</a> * )<tt> [virtual protected]</tt> </h3> Shows the temporary message, if appropriate. <p>Reimplemented from <a href="ntqwidget.html#paintEvent">TQWidget</a>. <h3 class=fn>void <a name="reformat"></a>TQStatusBar::reformat ()<tt> [protected]</tt> </h3> Changes the status bar's appearance to account for item changes. Special subclasses may need this, but geometry management will usually take care of any necessary rearrangements. <h3 class=fn>void <a name="removeWidget"></a>TQStatusBar::removeWidget ( <a href="ntqwidget.html">TQWidget</a> * widget )<tt> [virtual]</tt> </h3> Removes <em>widget</em> from the status bar. <p> This function may cause some flicker. <p> Note that <em>widget</em> is not deleted. <p> <p>See also <a href="#addWidget">addWidget</a>(). <h3 class=fn>void <a name="setSizeGripEnabled"></a>TQStatusBar::setSizeGripEnabled ( bool ) </h3><p>Sets whether the <a href="ntqsizegrip.html">TQSizeGrip</a> in the bottom right of the status bar is enabled. See the <a href="ntqstatusbar.html#sizeGripEnabled-prop">"sizeGripEnabled"</a> property for details. <hr><h2>Property Documentation</h2> <h3 class=fn>bool <a name="sizeGripEnabled-prop"></a>sizeGripEnabled</h3> <p>This property holds whether the <a href="ntqsizegrip.html">TQSizeGrip</a> in the bottom right of the status bar is enabled. <p>Enables or disables the TQSizeGrip in the bottom right of the status bar. By default, the size grip is enabled. <p>Set this property's value with <a href="#setSizeGripEnabled">setSizeGripEnabled</a>() and get this property's value with <a href="#isSizeGripEnabled">isSizeGripEnabled</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>. 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