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diff --git a/doc/html/qpopupmenu.html b/doc/html/qpopupmenu.html new file mode 100644 index 0000000..d60d260 --- /dev/null +++ b/doc/html/qpopupmenu.html @@ -0,0 +1,830 @@ +<!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/qpopupmenu.cpp:126 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>QPopupMenu 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>QPopupMenu Class Reference</h1> + +<p>The QPopupMenu class provides a popup menu widget. +<a href="#details">More...</a> +<p><tt>#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>></tt> +<p>Inherits <a href="qframe.html">QFrame</a> and <a href="qmenudata.html">QMenuData</a>. +<p><a href="qpopupmenu-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#QPopupMenu"><b>QPopupMenu</b></a> ( QWidget * parent = 0, const char * name = 0 )</li> +<li class=fn><a href="#~QPopupMenu"><b>~QPopupMenu</b></a> ()</li> +<li class=fn>void <a href="#popup"><b>popup</b></a> ( const QPoint & pos, int indexAtPoint = -1 )</li> +<li class=fn>virtual void <a href="#updateItem"><b>updateItem</b></a> ( int id )</li> +<li class=fn>virtual void <a href="#setCheckable"><b>setCheckable</b></a> ( bool )</li> +<li class=fn>bool <a href="#isCheckable"><b>isCheckable</b></a> () const</li> +<li class=fn>int <a href="#exec"><b>exec</b></a> ()</li> +<li class=fn>int <a href="#exec-2"><b>exec</b></a> ( const QPoint & pos, int indexAtPoint = 0 )</li> +<li class=fn>virtual void <a href="#setActiveItem"><b>setActiveItem</b></a> ( int i )</li> +<li class=fn>int <a href="#idAt"><b>idAt</b></a> ( int index ) const</li> +<li class=fn>int <a href="#idAt-2"><b>idAt</b></a> ( const QPoint & pos ) const</li> +<li class=fn>int <a href="#insertTearOffHandle"><b>insertTearOffHandle</b></a> ( int id = -1, int index = -1 )</li> +</ul> +<h2>Signals</h2> +<ul> +<li class=fn>void <a href="#activated"><b>activated</b></a> ( int id )</li> +<li class=fn>void <a href="#highlighted"><b>highlighted</b></a> ( int id )</li> +<li class=fn>void <a href="#aboutToShow"><b>aboutToShow</b></a> ()</li> +<li class=fn>void <a href="#aboutToHide"><b>aboutToHide</b></a> ()</li> +</ul> +<h2>Important Inherited Members</h2> +<ul> +<li class=fn>int <a href="#insertItem"><b>insertItem</b></a> ( const QString & text, const QObject * receiver, const char * member, const QKeySequence & accel = 0, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-2"><b>insertItem</b></a> ( const QIconSet & icon, const QString & text, const QObject * receiver, const char * member, const QKeySequence & accel = 0, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-3"><b>insertItem</b></a> ( const QPixmap & pixmap, const QObject * receiver, const char * member, const QKeySequence & accel = 0, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-4"><b>insertItem</b></a> ( const QIconSet & icon, const QPixmap & pixmap, const QObject * receiver, const char * member, const QKeySequence & accel = 0, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-5"><b>insertItem</b></a> ( const QString & text, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-6"><b>insertItem</b></a> ( const QIconSet & icon, const QString & text, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-7"><b>insertItem</b></a> ( const QString & text, QPopupMenu * popup, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-8"><b>insertItem</b></a> ( const QIconSet & icon, const QString & text, QPopupMenu * popup, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-9"><b>insertItem</b></a> ( const QPixmap & pixmap, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-a"><b>insertItem</b></a> ( const QIconSet & icon, const QPixmap & pixmap, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-b"><b>insertItem</b></a> ( const QPixmap & pixmap, QPopupMenu * popup, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-c"><b>insertItem</b></a> ( const QIconSet & icon, const QPixmap & pixmap, QPopupMenu * popup, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-d"><b>insertItem</b></a> ( QWidget * widget, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-e"><b>insertItem</b></a> ( const QIconSet & icon, QCustomMenuItem * custom, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertItem-f"><b>insertItem</b></a> ( QCustomMenuItem * custom, int id = -1, int index = -1 )</li> +<li class=fn>int <a href="#insertSeparator"><b>insertSeparator</b></a> ( int index = -1 )</li> +<li class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( int id )</li> +<li class=fn>void <a href="#removeItemAt"><b>removeItemAt</b></a> ( int index )</li> +<li class=fn>void <a href="#clear"><b>clear</b></a> ()</li> +<li class=fn>QKeySequence <a href="#accel"><b>accel</b></a> ( int id ) const</li> +<li class=fn>void <a href="#setAccel"><b>setAccel</b></a> ( const QKeySequence & key, int id )</li> +<li class=fn>QIconSet * <a href="#iconSet"><b>iconSet</b></a> ( int id ) const</li> +<li class=fn>QString <a href="#text"><b>text</b></a> ( int id ) const</li> +<li class=fn>QPixmap * <a href="#pixmap"><b>pixmap</b></a> ( int id ) const</li> +<li class=fn>void <a href="#setWhatsThis"><b>setWhatsThis</b></a> ( int id, const QString & text )</li> +<li class=fn>QString <a href="#whatsThis"><b>whatsThis</b></a> ( int id ) const</li> +<li class=fn>void <a href="#changeItem"><b>changeItem</b></a> ( int id, const QString & text )</li> +<li class=fn>void <a href="#changeItem-2"><b>changeItem</b></a> ( int id, const QPixmap & pixmap )</li> +<li class=fn>void <a href="#changeItem-3"><b>changeItem</b></a> ( int id, const QIconSet & icon, const QString & text )</li> +<li class=fn>void <a href="#changeItem-4"><b>changeItem</b></a> ( int id, const QIconSet & icon, const QPixmap & pixmap )</li> +<li class=fn>bool <a href="#isItemEnabled"><b>isItemEnabled</b></a> ( int id ) const</li> +<li class=fn>void <a href="#setItemEnabled"><b>setItemEnabled</b></a> ( int id, bool enable )</li> +<li class=fn>bool <a href="#isItemChecked"><b>isItemChecked</b></a> ( int id ) const</li> +<li class=fn>void <a href="#setItemChecked"><b>setItemChecked</b></a> ( int id, bool check )</li> +<li class=fn>bool <a href="#isItemVisible"><b>isItemVisible</b></a> ( int id ) const</li> +<li class=fn>void <a href="#setItemVisible"><b>setItemVisible</b></a> ( int id, bool visible )</li> +<li class=fn>bool <a href="#connectItem"><b>connectItem</b></a> ( int id, const QObject * receiver, const char * member )</li> +<li class=fn>bool <a href="#disconnectItem"><b>disconnectItem</b></a> ( int id, const QObject * receiver, const char * member )</li> +<li class=fn>bool <a href="#setItemParameter"><b>setItemParameter</b></a> ( int id, int param )</li> +<li class=fn>int <a href="#itemParameter"><b>itemParameter</b></a> ( int id ) const</li> +</ul> +<h2>Properties</h2> +<ul> +<li class=fn>bool <a href="#checkable-prop"><b>checkable</b></a> - whether the display of check marks on menu items is enabled</li> +</ul> +<h2>Protected Members</h2> +<ul> +<li class=fn>int <a href="#itemHeight"><b>itemHeight</b></a> ( int row ) const</li> +<li class=fn>int <a href="#itemHeight-2"><b>itemHeight</b></a> ( QMenuItem * mi ) const</li> +<li class=fn>void <a href="#drawItem"><b>drawItem</b></a> ( QPainter * p, int tab_, QMenuItem * mi, bool act, int x, int y, int w, int h )</li> +<li class=fn>virtual void <a href="#drawContents"><b>drawContents</b></a> ( QPainter * p )</li> +<li class=fn>int <a href="#columns"><b>columns</b></a> () const</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The QPopupMenu class provides a popup menu widget. +<p> + + +<p> A popup menu widget is a selection menu. It can be either a +pull-down menu in a menu bar or a standalone context (popup) menu. +Pull-down menus are shown by the menu bar when the user clicks on +the respective item or presses the specified shortcut key. Use +<a href="qmenudata.html#insertItem">QMenuBar::insertItem</a>() to insert a popup menu into a menu bar. +Show a context menu either asynchronously with <a href="#popup">popup</a>() or +synchronously with <a href="#exec">exec</a>(). +<p> Technically, a popup menu consists of a list of menu items. You +add items with <a href="qmenudata.html#insertItem">insertItem</a>(). An item is either a string, a pixmap +or a custom item that provides its own drawing function (see +<a href="qcustommenuitem.html">QCustomMenuItem</a>). In addition, items can have an optional icon +drawn on the very left side and an accelerator key such as +"Ctrl+X". +<p> There are three kinds of menu items: separators, menu items that +perform an action and menu items that show a submenu. Separators +are inserted with <a href="qmenudata.html#insertSeparator">insertSeparator</a>(). For submenus, you pass a +pointer to a QPopupMenu in your call to insertItem(). All other +items are considered action items. +<p> When inserting action items you usually specify a receiver and a +slot. The receiver will be notifed whenever the item is selected. +In addition, QPopupMenu provides two signals, <a href="#activated">activated</a>() and +<a href="#highlighted">highlighted</a>(), which signal the identifier of the respective menu +item. It is sometimes practical to connect several items to one +slot. To distinguish between them, specify a slot that takes an +integer argument and use <a href="qmenudata.html#setItemParameter">setItemParameter</a>() to associate a unique +value with each item. +<p> You clear a popup menu with <a href="qmenudata.html#clear">clear</a>() and remove single items with +<a href="qmenudata.html#removeItem">removeItem</a>() or <a href="qmenudata.html#removeItemAt">removeItemAt</a>(). +<p> A popup menu can display check marks for certain items when +enabled with <a href="#setCheckable">setCheckable</a>(TRUE). You check or uncheck items with +<a href="qmenudata.html#setItemChecked">setItemChecked</a>(). +<p> Items are either enabled or disabled. You toggle their state with +<a href="qmenudata.html#setItemEnabled">setItemEnabled</a>(). Just before a popup menu becomes visible, it +emits the <a href="#aboutToShow">aboutToShow</a>() signal. You can use this signal to set the +correct enabled/disabled states of all menu items before the user +sees it. The corresponding <a href="#aboutToHide">aboutToHide</a>() signal is emitted when +the menu hides again. +<p> You can provide What's This? help for single menu items with +<a href="qmenudata.html#setWhatsThis">setWhatsThis</a>(). See <a href="qwhatsthis.html">QWhatsThis</a> for general information about this +kind of lightweight online help. +<p> For ultimate flexibility, you can also add entire widgets as items +into a popup menu (for example, a color selector). +<p> A QPopupMenu can also provide a tear-off menu. A tear-off menu is +a top-level window that contains a copy of the menu. This makes it +possible for the user to "tear off" frequently used menus and +position them in a convenient place on the screen. If you want +that functionality for a certain menu, insert a tear-off handle +with <a href="#insertTearOffHandle">insertTearOffHandle</a>(). When using tear-off menus, bear in +mind that the concept isn't typically used on Microsoft Windows so +users may not be familiar with it. Consider using a <a href="qtoolbar.html">QToolBar</a> +instead. Tear-off menus cannot contain custom widgets; if the +original menu contains a custom widget item, this item is omitted. +<p> <a href="menu-example.html">menu/menu.cpp</a> is an example of +<a href="qmenubar.html">QMenuBar</a> and QPopupMenu use. +<p> +<p> <img src=qpopmenu-m.png> <img src=qpopmenu-w.png> +<p> <p>See also <a href="qmenubar.html">QMenuBar</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Menu, Drop-Down and + Pop-Up</a>, <a href="application.html">Main Window and Related Classes</a>, and <a href="basic.html">Basic Widgets</a>. + +<hr><h2>Member Function Documentation</h2> +<h3 class=fn><a name="QPopupMenu"></a>QPopupMenu::QPopupMenu ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 ) +</h3> +Constructs a popup menu called <em>name</em> with parent <em>parent</em>. +<p> Although a popup menu is always a top-level widget, if a parent is +passed the popup menu will be deleted when that parent is +destroyed (as with any other <a href="qobject.html">QObject</a>). + +<h3 class=fn><a name="~QPopupMenu"></a>QPopupMenu::~QPopupMenu () +</h3> +Destroys the popup menu. + +<h3 class=fn>void <a name="aboutToHide"></a>QPopupMenu::aboutToHide ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted just before the popup menu is hidden after +it has been displayed. +<p> <b>Warning:</b> Do not open a widget in a slot connected to this signal. +<p> <p>See also <a href="#aboutToShow">aboutToShow</a>(), <a href="qmenudata.html#setItemEnabled">setItemEnabled</a>(), <a href="qmenudata.html#setItemChecked">setItemChecked</a>(), <a href="qmenudata.html#insertItem">insertItem</a>(), and <a href="qmenudata.html#removeItem">removeItem</a>(). + +<h3 class=fn>void <a name="aboutToShow"></a>QPopupMenu::aboutToShow ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted just before the popup menu is displayed. +You can connect it to any slot that sets up the menu contents +(e.g. to ensure that the right items are enabled). +<p> <p>See also <a href="#aboutToHide">aboutToHide</a>(), <a href="qmenudata.html#setItemEnabled">setItemEnabled</a>(), <a href="qmenudata.html#setItemChecked">setItemChecked</a>(), <a href="qmenudata.html#insertItem">insertItem</a>(), and <a href="qmenudata.html#removeItem">removeItem</a>(). + +<p>Example: <a href="mdi-example.html#x2048">mdi/application.cpp</a>. +<h3 class=fn><a href="qkeysequence.html">QKeySequence</a> <a name="accel"></a>QMenuData::accel ( int id ) const +</h3> +Returns the accelerator key that has been defined for the menu +item <em>id</em>, or 0 if it has no accelerator key or if there is no +such menu item. +<p> <p>See also <a href="qmenudata.html#setAccel">setAccel</a>(), <a href="qaccel.html">QAccel</a>, and <a href="qnamespace-h.html">qnamespace.h</a>. + +<h3 class=fn>void <a name="activated"></a>QPopupMenu::activated ( int id )<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when a menu item is selected; <em>id</em> is the +id of the selected item. +<p> Normally, you connect each menu item to a single slot using +<a href="qmenudata.html#insertItem">QMenuData::insertItem</a>(), but sometimes you will want to connect +several items to a single slot (most often if the user selects +from an array). This signal is useful in such cases. +<p> <p>See also <a href="#highlighted">highlighted</a>() and <a href="qmenudata.html#insertItem">QMenuData::insertItem</a>(). + +<p>Examples: <a href="grapher-nsplugin-example.html#x2767">grapher/grapher.cpp</a>, <a href="helpviewer-example.html#x1004">helpviewer/helpwindow.cpp</a>, <a href="qdir-example.html#x1835">qdir/qdir.cpp</a>, <a href="qwerty-example.html#x386">qwerty/qwerty.cpp</a>, <a href="scrollview-example.html#x642">scrollview/scrollview.cpp</a>, and <a href="showimg-example.html#x1341">showimg/showimg.cpp</a>. +<h3 class=fn>void <a name="changeItem"></a>QMenuData::changeItem ( int id, const <a href="qstring.html">QString</a> & text ) +</h3> +Changes the text of the menu item <em>id</em> to <em>text</em>. If the item +has an icon, the icon remains unchanged. +<p> <p>See also <a href="qmenudata.html#text">text</a>(). + +<h3 class=fn>void <a name="changeItem-2"></a>QMenuData::changeItem ( int id, const <a href="qpixmap.html">QPixmap</a> & pixmap ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Changes the pixmap of the menu item <em>id</em> to the pixmap <em>pixmap</em>. +If the item has an icon, the icon is unchanged. +<p> <p>See also <a href="qmenudata.html#pixmap">pixmap</a>(). + +<h3 class=fn>void <a name="changeItem-3"></a>QMenuData::changeItem ( int id, const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qstring.html">QString</a> & text ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Changes the iconset and text of the menu item <em>id</em> to the <em>icon</em> +and <em>text</em> respectively. +<p> <p>See also <a href="qmenudata.html#pixmap">pixmap</a>(). + +<h3 class=fn>void <a name="changeItem-4"></a>QMenuData::changeItem ( int id, const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qpixmap.html">QPixmap</a> & pixmap ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Changes the iconset and pixmap of the menu item <em>id</em> to <em>icon</em> +and <em>pixmap</em> respectively. +<p> <p>See also <a href="qmenudata.html#pixmap">pixmap</a>(). + +<h3 class=fn>void <a name="clear"></a>QMenuData::clear () +</h3> +Removes all menu items. +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>() and <a href="qmenudata.html#removeItemAt">removeItemAt</a>(). + +<p>Examples: <a href="mdi-example.html#x2029">mdi/application.cpp</a> and <a href="qwerty-example.html#x370">qwerty/qwerty.cpp</a>. +<h3 class=fn>int <a name="columns"></a>QPopupMenu::columns () const<tt> [protected]</tt> +</h3> +If a popup menu does not fit on the screen it lays itself out so +that it does fit. It is style dependent what layout means (for +example, on Windows it will use multiple columns). +<p> This functions returns the number of columns necessary. +<p> <p>See also <a href="qwidget.html#sizeHint-prop">sizeHint</a>. + +<h3 class=fn>bool <a name="connectItem"></a>QMenuData::connectItem ( int id, const <a href="qobject.html">QObject</a> * receiver, const char * member ) +</h3> +Connects the menu item with identifier <em>id</em> to <em>receiver</em>'s <em>member</em> slot or signal. +<p> The receiver's slot (or signal) is activated when the menu item is +activated. +<p> <p>See also <a href="qmenudata.html#disconnectItem">disconnectItem</a>() and <a href="qmenudata.html#setItemParameter">setItemParameter</a>(). + +<p>Example: <a href="menu-example.html#x1868">menu/menu.cpp</a>. +<h3 class=fn>bool <a name="disconnectItem"></a>QMenuData::disconnectItem ( int id, const <a href="qobject.html">QObject</a> * receiver, const char * member ) +</h3> +Disconnects the <em>receiver</em>'s <em>member</em> from the menu item with +identifier <em>id</em>. +<p> All connections are removed when the menu data object is +destroyed. +<p> <p>See also <a href="qmenudata.html#connectItem">connectItem</a>() and <a href="qmenudata.html#setItemParameter">setItemParameter</a>(). + +<h3 class=fn>void <a name="drawContents"></a>QPopupMenu::drawContents ( <a href="qpainter.html">QPainter</a> * p )<tt> [virtual protected]</tt> +</h3> +Draws all menu items using painter <em>p</em>. + +<p>Reimplemented from <a href="qframe.html#drawContents">QFrame</a>. +<h3 class=fn>void <a name="drawItem"></a>QPopupMenu::drawItem ( <a href="qpainter.html">QPainter</a> * p, int tab_, QMenuItem * mi, bool act, int x, int y, int w, int h )<tt> [protected]</tt> +</h3> +Draws menu item <em>mi</em> in the area <em>x</em>, <em>y</em>, <em>w</em>, <em>h</em>, using +painter <em>p</em>. The item is drawn active if <em>act</em> is TRUE or drawn +inactive if <em>act</em> is FALSE. The rightmost <em>tab_</em> pixels are used +for accelerator text. +<p> <p>See also <a href="qstyle.html#drawControl">QStyle::drawControl</a>(). + +<h3 class=fn>int <a name="exec"></a>QPopupMenu::exec () +</h3> +Executes this popup synchronously. +<p> This is equivalent to <tt>exec(mapToGlobal(QPoint(0,0)))</tt>. In most +situations you'll want to specify the position yourself, for +example at the current mouse position: +<pre> + <a href="#exec">exec</a>(QCursor::<a href="qcursor.html#pos">pos</a>()); + </pre> + +or aligned to a widget: +<pre> + <a href="#exec">exec</a>(somewidget.mapToGlobal(QPoint(0,0))); + </pre> + + +<p>Examples: <a href="fileiconview-example.html#x866">fileiconview/qfileiconview.cpp</a>, <a href="menu-example.html#x1878">menu/menu.cpp</a>, and <a href="scribble-example.html#x923">scribble/scribble.cpp</a>. +<h3 class=fn>int <a name="exec-2"></a>QPopupMenu::exec ( const <a href="qpoint.html">QPoint</a> & pos, int indexAtPoint = 0 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Executes this popup synchronously. +<p> Opens the popup menu so that the item number <em>indexAtPoint</em> will +be at the specified <em>global</em> position <em>pos</em>. To translate a +widget's local coordinates into global coordinates, use +<a href="qwidget.html#mapToGlobal">QWidget::mapToGlobal</a>(). +<p> The return code is the id of the selected item in either the popup +menu or one of its submenus, or -1 if no item is selected +(normally because the user pressed Esc). +<p> Note that all signals are emitted as usual. If you connect a menu +item to a slot and call the menu's <a href="#exec">exec</a>(), you get the result both +via the signal-slot connection and in the return value of exec(). +<p> Common usage is to position the popup at the current mouse +position: +<pre> + <a href="#exec">exec</a>( QCursor::<a href="qcursor.html#pos">pos</a>() ); + </pre> + +or aligned to a widget: +<pre> + <a href="#exec">exec</a>( somewidget.mapToGlobal(QPoint(0, 0)) ); + </pre> + +<p> When positioning a popup with exec() or <a href="#popup">popup</a>(), bear in mind that +you cannot rely on the popup menu's current <a href="qwidget.html#size">size</a>(). For +performance reasons, the popup adapts its size only when +necessary. So in many cases, the size before and after the show is +different. Instead, use <a href="qwidget.html#sizeHint">sizeHint</a>(). It calculates the proper size +depending on the menu's current contents. +<p> <p>See also <a href="#popup">popup</a>() and <a href="qwidget.html#sizeHint-prop">sizeHint</a>. + +<h3 class=fn>void <a name="highlighted"></a>QPopupMenu::highlighted ( int id )<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when a menu item is highlighted; <em>id</em> is +the id of the highlighted item. +<p> <p>See also <a href="#activated">activated</a>() and <a href="qmenudata.html#insertItem">QMenuData::insertItem</a>(). + +<h3 class=fn><a href="qiconset.html">QIconSet</a> * <a name="iconSet"></a>QMenuData::iconSet ( int id ) const +</h3> +Returns the icon set that has been set for menu item <em>id</em>, or 0 +if no icon set has been set. +<p> <p>See also <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#text">text</a>(), and <a href="qmenudata.html#pixmap">pixmap</a>(). + +<h3 class=fn>int <a name="idAt"></a>QPopupMenu::idAt ( int index ) const +</h3> + +<p> Returns the identifier of the menu item at position <em>index</em> in +the internal list, or -1 if <em>index</em> is out of range. +<p> <p>See also <a href="qmenudata.html#setId">QMenuData::setId</a>() and <a href="qmenudata.html#indexOf">QMenuData::indexOf</a>(). + +<p>Example: <a href="scrollview-example.html#x643">scrollview/scrollview.cpp</a>. +<h3 class=fn>int <a name="idAt-2"></a>QPopupMenu::idAt ( const <a href="qpoint.html">QPoint</a> & pos ) const +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Returns the id of the item at <em>pos</em>, or -1 if there is no item +there or if it is a separator. + +<h3 class=fn>int <a name="insertItem"></a>QMenuData::insertItem ( const <a href="qstring.html">QString</a> & text, const <a href="qobject.html">QObject</a> * receiver, const char * member, const <a href="qkeysequence.html">QKeySequence</a> & accel = 0, int id = -1, int index = -1 ) +</h3> +The family of <a href="qmenudata.html#insertItem">insertItem</a>() functions inserts menu items into a +popup menu or a menu bar. +<p> A menu item is usually either a text string or a pixmap, both with +an optional icon or keyboard accelerator. For special cases it is +also possible to insert custom items (see <a href="qcustommenuitem.html">QCustomMenuItem</a>) or +even widgets into popup menus. +<p> Some insertItem() members take a popup menu as an additional +argument. Use this to insert submenus into existing menus or +pulldown menus into a menu bar. +<p> The number of insert functions may look confusing, but they are +actually quite simple to use. +<p> This default version inserts a menu item with the text <em>text</em>, +the accelerator key <em>accel</em>, an id and an optional index and +connects it to the slot <em>member</em> in the object <em>receiver</em>. +<p> Example: +<pre> + <a href="qmenubar.html">QMenuBar</a> *mainMenu = new <a href="qmenubar.html">QMenuBar</a>; + QPopupMenu *fileMenu = new QPopupMenu; + fileMenu-><a href="qmenudata.html#insertItem">insertItem</a>( "New", myView, SLOT(newFile()), CTRL+Key_N ); + fileMenu-><a href="qmenudata.html#insertItem">insertItem</a>( "Open", myView, SLOT(open()), CTRL+Key_O ); + mainMenu-><a href="qmenudata.html#insertItem">insertItem</a>( "File", fileMenu ); + </pre> + +<p> Not all insert functions take an object/slot parameter or an +accelerator key. Use <a href="qmenudata.html#connectItem">connectItem</a>() and <a href="qmenudata.html#setAccel">setAccel</a>() on those items. +<p> If you need to translate accelerators, use <a href="qobject.html#tr">tr</a>() with the text and +accelerator. (For translations use a string <a href="qkeysequence.html">key + sequence</a>.): +<pre> + fileMenu->insertItem( <a href="qobject.html#tr">tr</a>("Open"), myView, SLOT(open()), + <a href="qobject.html#tr">tr</a>("Ctrl+O") ); + </pre> + +<p> In the example above, pressing Ctrl+O or selecting "Open" from the +menu activates the myView->open() function. +<p> Some insert functions take a <a href="qiconset.html">QIconSet</a> parameter to specify the +little menu item icon. Note that you can always pass a <a href="qpixmap.html">QPixmap</a> +object instead. +<p> The <em>id</em> specifies the identification number associated with the +menu item. Note that only positive values are valid, as a negative +value will make Qt select a unique id for the item. +<p> The <em>index</em> specifies the position in the menu. The menu item is +appended at the end of the list if <em>index</em> is negative. +<p> Note that keyboard accelerators in Qt are not application-global, +instead they are bound to a certain top-level window. For example, +accelerators in QPopupMenu items only work for menus that are +associated with a certain window. This is true for popup menus +that live in a menu bar since their accelerators will then be +installed in the menu bar itself. This also applies to stand-alone +popup menus that have a top-level widget in their <a href="qwidget.html#parentWidget">parentWidget</a>() +chain. The menu will then install its accelerator object on that +top-level widget. For all other cases use an independent <a href="qaccel.html">QAccel</a> +object. +<p> <b>Warning:</b> Be careful when passing a literal 0 to <a href="qmenudata.html#insertItem">insertItem</a>() +because some C++ compilers choose the wrong overloaded function. +Cast the 0 to what you mean, e.g. <tt>(QObject*)0</tt>. +<p> <b>Warning:</b> On Mac OS X, items that connect to a slot that are inserted into a +menubar will not function as we use the native menubar that knows nothing +about signals or slots. Instead insert the items into a popup menu and +insert the popup menu into the menubar. This may be fixed in a future Qt +version. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qaccel.html">QAccel</a>, and <a href="qnamespace-h.html">qnamespace.h</a>. + +<p>Examples: <a href="addressbook-example.html#x569">addressbook/mainwindow.cpp</a>, <a href="canvas-example.html#x2936">canvas/canvas.cpp</a>, <a href="menu-example.html#x1869">menu/menu.cpp</a>, <a href="qwerty-example.html#x371">qwerty/qwerty.cpp</a>, <a href="scrollview-example.html#x634">scrollview/scrollview.cpp</a>, <a href="showimg-example.html#x1327">showimg/showimg.cpp</a>, and <a href="sound-example.html#x2810">sound/sound.cpp</a>. +<h3 class=fn>int <a name="insertItem-2"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qstring.html">QString</a> & text, const <a href="qobject.html">QObject</a> * receiver, const char * member, const <a href="qkeysequence.html">QKeySequence</a> & accel = 0, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with icon <em>icon</em>, text <em>text</em>, accelerator +<em>accel</em>, optional id <em>id</em>, and optional <em>index</em> position. The +menu item is connected it to the <em>receiver</em>'s <em>member</em> slot. The +icon will be displayed to the left of the text in the item. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qaccel.html">QAccel</a>, and <a href="qnamespace-h.html">qnamespace.h</a>. + +<h3 class=fn>int <a name="insertItem-3"></a>QMenuData::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, const <a href="qobject.html">QObject</a> * receiver, const char * member, const <a href="qkeysequence.html">QKeySequence</a> & accel = 0, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with pixmap <em>pixmap</em>, accelerator <em>accel</em>, +optional id <em>id</em>, and optional <em>index</em> position. The menu item +is connected it to the <em>receiver</em>'s <em>member</em> slot. The icon will +be displayed to the left of the text in the item. +<p> To look best when being highlighted as a menu item, the pixmap +should provide a mask (see <a href="qpixmap.html#mask">QPixmap::mask</a>()). +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-4"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qpixmap.html">QPixmap</a> & pixmap, const <a href="qobject.html">QObject</a> * receiver, const char * member, const <a href="qkeysequence.html">QKeySequence</a> & accel = 0, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with icon <em>icon</em>, pixmap <em>pixmap</em>, +accelerator <em>accel</em>, optional id <em>id</em>, and optional <em>index</em> +position. The icon will be displayed to the left of the pixmap in +the item. The item is connected to the <em>member</em> slot in the <em>receiver</em> object. +<p> To look best when being highlighted as a menu item, the pixmap +should provide a mask (see <a href="qpixmap.html#mask">QPixmap::mask</a>()). +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qaccel.html">QAccel</a>, and <a href="qnamespace-h.html">qnamespace.h</a>. + +<h3 class=fn>int <a name="insertItem-5"></a>QMenuData::insertItem ( const <a href="qstring.html">QString</a> & text, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with text <em>text</em>, optional id <em>id</em>, and +optional <em>index</em> position. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-6"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qstring.html">QString</a> & text, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with icon <em>icon</em>, text <em>text</em>, optional id +<em>id</em>, and optional <em>index</em> position. The icon will be displayed +to the left of the text in the item. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-7"></a>QMenuData::insertItem ( const <a href="qstring.html">QString</a> & text, <a href="qpopupmenu.html">QPopupMenu</a> * popup, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with text <em>text</em>, submenu <em>popup</em>, optional +id <em>id</em>, and optional <em>index</em> position. +<p> The <em>popup</em> must be deleted by the programmer or by its parent +widget. It is not deleted when this menu item is removed or when +the menu is deleted. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-8"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qstring.html">QString</a> & text, <a href="qpopupmenu.html">QPopupMenu</a> * popup, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with icon <em>icon</em>, text <em>text</em>, submenu <em>popup</em>, optional id <em>id</em>, and optional <em>index</em> position. The icon +will be displayed to the left of the text in the item. +<p> The <em>popup</em> must be deleted by the programmer or by its parent +widget. It is not deleted when this menu item is removed or when +the menu is deleted. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-9"></a>QMenuData::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with pixmap <em>pixmap</em>, optional id <em>id</em>, and +optional <em>index</em> position. +<p> To look best when being highlighted as a menu item, the pixmap +should provide a mask (see <a href="qpixmap.html#mask">QPixmap::mask</a>()). +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-a"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qpixmap.html">QPixmap</a> & pixmap, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with icon <em>icon</em>, pixmap <em>pixmap</em>, optional +id <em>id</em>, and optional <em>index</em> position. The icon will be +displayed to the left of the pixmap in the item. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-b"></a>QMenuData::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, <a href="qpopupmenu.html">QPopupMenu</a> * popup, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with pixmap <em>pixmap</em>, submenu <em>popup</em>, +optional id <em>id</em>, and optional <em>index</em> position. +<p> The <em>popup</em> must be deleted by the programmer or by its parent +widget. It is not deleted when this menu item is removed or when +the menu is deleted. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-c"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qpixmap.html">QPixmap</a> & pixmap, <a href="qpopupmenu.html">QPopupMenu</a> * popup, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item with icon <em>icon</em>, pixmap <em>pixmap</em> submenu <em>popup</em>, optional id <em>id</em>, and optional <em>index</em> position. The icon +will be displayed to the left of the pixmap in the item. +<p> The <em>popup</em> must be deleted by the programmer or by its parent +widget. It is not deleted when this menu item is removed or when +the menu is deleted. +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(), <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#setAccel">setAccel</a>(), and <a href="qmenudata.html#connectItem">connectItem</a>(). + +<h3 class=fn>int <a name="insertItem-d"></a>QMenuData::insertItem ( <a href="qwidget.html">QWidget</a> * widget, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a menu item that consists of the widget <em>widget</em> with +optional id <em>id</em>, and optional <em>index</em> position. +<p> Ownership of <em>widget</em> is transferred to the popup menu or to the +menu bar. +<p> Theoretically, any widget can be inserted into a popup menu. In +practice, this only makes sense with certain widgets. +<p> If a widget is not focus-enabled (see +<a href="qwidget.html#isFocusEnabled">QWidget::isFocusEnabled</a>()), the menu treats it as a separator; +this means that the item is not selectable and will never get +focus. In this way you can, for example, simply insert a <a href="qlabel.html">QLabel</a> if +you need a popup menu with a title. +<p> If the widget is focus-enabled it will get focus when the user +traverses the popup menu with the arrow keys. If the widget does +not accept <tt>ArrowUp</tt> and <tt>ArrowDown</tt> in its key event handler, +the focus will move back to the menu when the respective arrow key +is hit one more time. This works with a <a href="qlineedit.html">QLineEdit</a>, for example. If +the widget accepts the arrow key itself, it must also provide the +possibility to put the focus back on the menu again by calling +<a href="qwidget.html#focusNextPrevChild">QWidget::focusNextPrevChild</a>(). Futhermore, if the embedded widget +closes the menu when the user made a selection, this can be done +safely by calling: +<pre> + if ( <a href="qwidget.html#isVisible">isVisible</a>() && + <a href="qwidget.html#parentWidget">parentWidget</a>() && + <a href="qwidget.html#parentWidget">parentWidget</a>()->inherits("QPopupMenu") ) + <a href="qwidget.html#parentWidget">parentWidget</a>()->close(); + </pre> + +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>(). + +<h3 class=fn>int <a name="insertItem-e"></a>QMenuData::insertItem ( const <a href="qiconset.html">QIconSet</a> & icon, <a href="qcustommenuitem.html">QCustomMenuItem</a> * custom, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a custom menu item <em>custom</em> with an <em>icon</em> and with +optional id <em>id</em>, and optional <em>index</em> position. +<p> This only works with popup menus. It is not supported for menu +bars. Ownership of <em>custom</em> is transferred to the popup menu. +<p> If you want to connect a custom item to a slot, use <a href="qmenudata.html#connectItem">connectItem</a>(). +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qmenudata.html#removeItem">removeItem</a>(), and <a href="qcustommenuitem.html">QCustomMenuItem</a>. + +<h3 class=fn>int <a name="insertItem-f"></a>QMenuData::insertItem ( <a href="qcustommenuitem.html">QCustomMenuItem</a> * custom, int id = -1, int index = -1 ) +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Inserts a custom menu item <em>custom</em> with optional id <em>id</em>, and +optional <em>index</em> position. +<p> This only works with popup menus. It is not supported for menu +bars. Ownership of <em>custom</em> is transferred to the popup menu. +<p> If you want to connect a custom item to a slot, use <a href="qmenudata.html#connectItem">connectItem</a>(). +<p> Returns the allocated <a href="qmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0). +<p> <p>See also <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qmenudata.html#removeItem">removeItem</a>(), and <a href="qcustommenuitem.html">QCustomMenuItem</a>. + +<h3 class=fn>int <a name="insertSeparator"></a>QMenuData::insertSeparator ( int index = -1 ) +</h3> +Inserts a separator at position <em>index</em>, and returns the <a href="qmenudata.html#menu-identifier">menu identifier</a> +number allocated to it. The separator becomes the last menu item if +<em>index</em> is negative. +<p> In a popup menu a separator is rendered as a horizontal line. In a +<a href="motif-extension.html#Motif">Motif</a> menu bar a separator is spacing, so the rest of the items +(normally just "Help") are drawn right-justified. In a Windows +menu bar separators are ignored (to comply with the Windows style +guidelines). + +<p>Examples: <a href="addressbook-example.html#x570">addressbook/mainwindow.cpp</a>, <a href="menu-example.html#x1870">menu/menu.cpp</a>, <a href="progress-example.html#x69">progress/progress.cpp</a>, <a href="qwerty-example.html#x372">qwerty/qwerty.cpp</a>, <a href="scrollview-example.html#x635">scrollview/scrollview.cpp</a>, <a href="showimg-example.html#x1328">showimg/showimg.cpp</a>, and <a href="sound-example.html#x2811">sound/sound.cpp</a>. +<h3 class=fn>int <a name="insertTearOffHandle"></a>QPopupMenu::insertTearOffHandle ( int id = -1, int index = -1 ) +</h3> +Inserts a tear-off handle into the menu. A tear-off handle is a +special menu item that creates a copy of the menu when the menu is +selected. This "torn-off" copy lives in a separate window. It +contains the same menu items as the original menu, with the +exception of the tear-off handle. +<p> The handle item is assigned the identifier <em>id</em> or an +automatically generated identifier if <em>id</em> is < 0. The generated +identifiers (negative integers) are guaranteed to be unique within +the entire application. +<p> The <em>index</em> specifies the position in the menu. The tear-off +handle is appended at the end of the list if <em>index</em> is negative. + +<p>Example: <a href="menu-example.html#x1879">menu/menu.cpp</a>. +<h3 class=fn>bool <a name="isCheckable"></a>QPopupMenu::isCheckable () const +</h3><p>Returns TRUE if the display of check marks on menu items is enabled; otherwise returns FALSE. +See the <a href="qpopupmenu.html#checkable-prop">"checkable"</a> property for details. +<h3 class=fn>bool <a name="isItemChecked"></a>QMenuData::isItemChecked ( int id ) const +</h3> +Returns TRUE if the menu item with the id <em>id</em> has been checked; +otherwise returns FALSE. +<p> <p>See also <a href="qmenudata.html#setItemChecked">setItemChecked</a>(). + +<p>Examples: <a href="canvas-example.html#x2938">canvas/canvas.cpp</a>, <a href="progress-example.html#x70">progress/progress.cpp</a>, and <a href="showimg-example.html#x1329">showimg/showimg.cpp</a>. +<h3 class=fn>bool <a name="isItemEnabled"></a>QMenuData::isItemEnabled ( int id ) const +</h3> +Returns TRUE if the item with identifier <em>id</em> is enabled; +otherwise returns FALSE +<p> <p>See also <a href="qmenudata.html#setItemEnabled">setItemEnabled</a>() and <a href="qmenudata.html#isItemVisible">isItemVisible</a>(). + +<h3 class=fn>bool <a name="isItemVisible"></a>QMenuData::isItemVisible ( int id ) const +</h3> +Returns TRUE if the menu item with the id <em>id</em> is visible; +otherwise returns FALSE. +<p> <p>See also <a href="qmenudata.html#setItemVisible">setItemVisible</a>(). + +<h3 class=fn>int <a name="itemHeight"></a>QPopupMenu::itemHeight ( int row ) const<tt> [protected]</tt> +</h3> +Calculates the height in pixels of the item in row <em>row</em>. + +<h3 class=fn>int <a name="itemHeight-2"></a>QPopupMenu::itemHeight ( QMenuItem * mi ) const<tt> [protected]</tt> +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Calculates the height in pixels of the menu item <em>mi</em>. + +<h3 class=fn>int <a name="itemParameter"></a>QMenuData::itemParameter ( int id ) const +</h3> +Returns the parameter of the activation signal of item <em>id</em>. +<p> If no parameter has been specified for this item with +<a href="qmenudata.html#setItemParameter">setItemParameter</a>(), the value defaults to <em>id</em>. +<p> <p>See also <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qmenudata.html#disconnectItem">disconnectItem</a>(), and <a href="qmenudata.html#setItemParameter">setItemParameter</a>(). + +<h3 class=fn><a href="qpixmap.html">QPixmap</a> * <a name="pixmap"></a>QMenuData::pixmap ( int id ) const +</h3> +Returns the pixmap that has been set for menu item <em>id</em>, or 0 if +no pixmap has been set. +<p> <p>See also <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#text">text</a>(), and <a href="qmenudata.html#iconSet">iconSet</a>(). + +<h3 class=fn>void <a name="popup"></a>QPopupMenu::popup ( const <a href="qpoint.html">QPoint</a> & pos, int indexAtPoint = -1 ) +</h3> +Displays the popup menu so that the item number <em>indexAtPoint</em> +will be at the specified <em>global</em> position <em>pos</em>. To translate a +widget's local coordinates into global coordinates, use +<a href="qwidget.html#mapToGlobal">QWidget::mapToGlobal</a>(). +<p> When positioning a popup with <a href="#exec">exec</a>() or <a href="#popup">popup</a>(), bear in mind that +you cannot rely on the popup menu's current <a href="qwidget.html#size">size</a>(). For +performance reasons, the popup adapts its size only when +necessary, so in many cases, the size before and after the show is +different. Instead, use <a href="qwidget.html#sizeHint">sizeHint</a>(). It calculates the proper size +depending on the menu's current contents. + +<p>Example: <a href="listviews-example.html#x159">listviews/listviews.cpp</a>. +<h3 class=fn>void <a name="removeItem"></a>QMenuData::removeItem ( int id ) +</h3> + +<p> Removes the menu item that has the identifier <em>id</em>. +<p> <p>See also <a href="qmenudata.html#removeItemAt">removeItemAt</a>() and <a href="qmenudata.html#clear">clear</a>(). + +<p>Example: <a href="canvas-chart-example.html#x2885">chart/chartform.cpp</a>. +<h3 class=fn>void <a name="removeItemAt"></a>QMenuData::removeItemAt ( int index ) +</h3> +Removes the menu item at position <em>index</em>. +<p> <p>See also <a href="qmenudata.html#removeItem">removeItem</a>() and <a href="qmenudata.html#clear">clear</a>(). + +<h3 class=fn>void <a name="setAccel"></a>QMenuData::setAccel ( const <a href="qkeysequence.html">QKeySequence</a> & key, int id ) +</h3> +Sets the accelerator key for the menu item <em>id</em> to <em>key</em>. +<p> An accelerator key consists of a key code and a combination of the +modifiers <a href="qt.html#Modifier-enum">SHIFT</a>, <a href="qt.html#Modifier-enum">CTRL</a>, <a href="qt.html#Modifier-enum">ALT</a> or <a href="qt.html#Modifier-enum">UNICODE_ACCEL</a> (OR'ed or +added). The header file <a href="qnamespace-h.html">qnamespace.h</a> contains a list of key +codes. +<p> Defining an accelerator key produces a text that is added to the +menu item; for instance, <a href="qt.html#Modifier-enum">CTRL</a> + <a href="qt.html#Key-enum">Key_O</a> produces "Ctrl+O". The +text is formatted differently for different platforms. +<p> Note that keyboard accelerators in Qt are not application-global, +instead they are bound to a certain top-level window. For example, +accelerators in QPopupMenu items only work for menus that are +associated with a certain window. This is true for popup menus +that live in a menu bar since their accelerators will then be +installed in the menu bar itself. This also applies to stand-alone +popup menus that have a top-level widget in their <a href="qwidget.html#parentWidget">parentWidget</a>() +chain. The menu will then install its accelerator object on that +top-level widget. For all other cases use an independent <a href="qaccel.html">QAccel</a> +object. +<p> Example: +<pre> + <a href="qmenubar.html">QMenuBar</a> *mainMenu = new <a href="qmenubar.html">QMenuBar</a>; + QPopupMenu *fileMenu = new QPopupMenu; // file sub menu + fileMenu-><a href="qmenudata.html#insertItem">insertItem</a>( "Open Document", 67 ); // add "Open" item + fileMenu-><a href="qmenudata.html#setAccel">setAccel</a>( CTRL + Key_O, 67 ); // Ctrl+O to open + fileMenu-><a href="qmenudata.html#insertItem">insertItem</a>( "Quit", 69 ); // add "Quit" item + fileMenu-><a href="qmenudata.html#setAccel">setAccel</a>( CTRL + ALT + Key_Delete, 69 ); // add Alt+Del to quit + mainMenu-><a href="qmenudata.html#insertItem">insertItem</a>( "File", fileMenu ); // add the file menu + </pre> + +<p> If you need to translate accelerators, use <a href="qobject.html#tr">tr</a>() with a string: +<pre> + fileMenu->setAccel( <a href="qobject.html#tr">tr</a>("Ctrl+O"), 67 ); + </pre> + +<p> You can also specify the accelerator in the <a href="qmenudata.html#insertItem">insertItem</a>() function. +You may prefer to use <a href="qaction.html">QAction</a> to associate accelerators with menu +items. +<p> <p>See also <a href="qmenudata.html#accel">accel</a>(), <a href="qmenudata.html#insertItem">insertItem</a>(), <a href="qaccel.html">QAccel</a>, and <a href="qaction.html">QAction</a>. + +<p>Example: <a href="menu-example.html#x1871">menu/menu.cpp</a>. +<h3 class=fn>void <a name="setActiveItem"></a>QPopupMenu::setActiveItem ( int i )<tt> [virtual]</tt> +</h3> +Sets the currently active item to index <em>i</em> and repaints as necessary. + +<h3 class=fn>void <a name="setCheckable"></a>QPopupMenu::setCheckable ( bool )<tt> [virtual]</tt> +</h3><p>Sets whether the display of check marks on menu items is enabled. +See the <a href="qpopupmenu.html#checkable-prop">"checkable"</a> property for details. +<h3 class=fn>void <a name="setItemChecked"></a>QMenuData::setItemChecked ( int id, bool check ) +</h3> +If <em>check</em> is TRUE, checks the menu item with id <em>id</em>; otherwise +unchecks the menu item with id <em>id</em>. Calls +<a href="#setCheckable">QPopupMenu::setCheckable</a>( TRUE ) if necessary. +<p> <p>See also <a href="qmenudata.html#isItemChecked">isItemChecked</a>(). + +<p>Examples: <a href="canvas-example.html#x2939">canvas/canvas.cpp</a>, <a href="grapher-nsplugin-example.html#x2749">grapher/grapher.cpp</a>, <a href="mdi-example.html#x2032">mdi/application.cpp</a>, <a href="menu-example.html#x1872">menu/menu.cpp</a>, <a href="progress-example.html#x71">progress/progress.cpp</a>, <a href="scrollview-example.html#x636">scrollview/scrollview.cpp</a>, and <a href="showimg-example.html#x1330">showimg/showimg.cpp</a>. +<h3 class=fn>void <a name="setItemEnabled"></a>QMenuData::setItemEnabled ( int id, bool enable ) +</h3> +If <em>enable</em> is TRUE, enables the menu item with identifier <em>id</em>; +otherwise disables the menu item with identifier <em>id</em>. +<p> <p>See also <a href="qmenudata.html#isItemEnabled">isItemEnabled</a>(). + +<p>Examples: <a href="mdi-example.html#x2033">mdi/application.cpp</a>, <a href="menu-example.html#x1873">menu/menu.cpp</a>, <a href="progress-example.html#x72">progress/progress.cpp</a>, and <a href="showimg-example.html#x1331">showimg/showimg.cpp</a>. +<h3 class=fn>bool <a name="setItemParameter"></a>QMenuData::setItemParameter ( int id, int param ) +</h3> +Sets the parameter of the activation signal of item <em>id</em> to <em>param</em>. +<p> If any receiver takes an integer parameter, this value is passed. +<p> <p>See also <a href="qmenudata.html#connectItem">connectItem</a>(), <a href="qmenudata.html#disconnectItem">disconnectItem</a>(), and <a href="qmenudata.html#itemParameter">itemParameter</a>(). + +<p>Example: <a href="mdi-example.html#x2034">mdi/application.cpp</a>. +<h3 class=fn>void <a name="setItemVisible"></a>QMenuData::setItemVisible ( int id, bool visible ) +</h3> +If <em>visible</em> is TRUE, shows the menu item with id <em>id</em>; otherwise +hides the menu item with id <em>id</em>. +<p> <p>See also <a href="qmenudata.html#isItemVisible">isItemVisible</a>() and <a href="qmenudata.html#isItemEnabled">isItemEnabled</a>(). + +<h3 class=fn>void <a name="setWhatsThis"></a>QMenuData::setWhatsThis ( int id, const <a href="qstring.html">QString</a> & text ) +</h3> +Sets <em>text</em> as What's This help for the menu item with identifier +<em>id</em>. +<p> <p>See also <a href="qmenudata.html#whatsThis">whatsThis</a>(). + +<p>Examples: <a href="simple-application-example.html#x1554">application/application.cpp</a>, <a href="helpsystem-example.html#x2689">helpsystem/mainwindow.cpp</a>, and <a href="mdi-example.html#x2035">mdi/application.cpp</a>. +<h3 class=fn><a href="qstring.html">QString</a> <a name="text"></a>QMenuData::text ( int id ) const +</h3> +Returns the text that has been set for menu item <em>id</em>, or +<a href="qstring.html#QString-null">QString::null</a> if no text has been set. +<p> <p>See also <a href="qmenudata.html#changeItem">changeItem</a>(), <a href="qmenudata.html#pixmap">pixmap</a>(), and <a href="qmenudata.html#iconSet">iconSet</a>(). + +<p>Examples: <a href="qdir-example.html#x1831">qdir/qdir.cpp</a> and <a href="showimg-example.html#x1332">showimg/showimg.cpp</a>. +<h3 class=fn>void <a name="updateItem"></a>QPopupMenu::updateItem ( int id )<tt> [virtual]</tt> +</h3> +Updates the item with identity <em>id</em>. + +<p>Reimplemented from <a href="qmenudata.html#updateItem">QMenuData</a>. +<h3 class=fn><a href="qstring.html">QString</a> <a name="whatsThis"></a>QMenuData::whatsThis ( int id ) const +</h3> +Returns the What's This help text for the item with identifier <em>id</em> or <a href="qstring.html#QString-null">QString::null</a> if no text has yet been defined. +<p> <p>See also <a href="qmenudata.html#setWhatsThis">setWhatsThis</a>(). + +<hr><h2>Property Documentation</h2> +<h3 class=fn>bool <a name="checkable-prop"></a>checkable</h3> +<p>This property holds whether the display of check marks on menu items is enabled. +<p>When TRUE, the display of check marks on menu items is enabled. +Checking is always enabled when in Windows-style. +<p> <p>See also <a href="qmenudata.html#setItemChecked">QMenuData::setItemChecked</a>(). + +<p>Set this property's value with <a href="#setCheckable">setCheckable</a>() and get this property's value with <a href="#isCheckable">isCheckable</a>(). +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">Qt 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>Qt 3.3.8</div> +</table></div></address></body> +</html> |