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831 lines
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831 lines
61 KiB
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qpopupmenu.cpp:126 -->
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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>TQPopupMenu Class Reference</h1>
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<p>The TQPopupMenu class provides a popup menu widget.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qpopupmenu-h.html">ntqpopupmenu.h</a>></tt>
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<p>Inherits <a href="ntqframe.html">TQFrame</a> and <a href="ntqmenudata.html">TQMenuData</a>.
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<p><a href="qpopupmenu-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="#TQPopupMenu"><b>TQPopupMenu</b></a> ( TQWidget * parent = 0, const char * name = 0 )</li>
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<li class=fn><a href="#~TQPopupMenu"><b>~TQPopupMenu</b></a> ()</li>
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<li class=fn>void <a href="#popup"><b>popup</b></a> ( const TQPoint & pos, int indexAtPoint = -1 )</li>
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<li class=fn>virtual void <a href="#updateItem"><b>updateItem</b></a> ( int id )</li>
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<li class=fn>virtual void <a href="#setCheckable"><b>setCheckable</b></a> ( bool )</li>
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<li class=fn>bool <a href="#isCheckable"><b>isCheckable</b></a> () const</li>
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<li class=fn>int <a href="#exec"><b>exec</b></a> ()</li>
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<li class=fn>int <a href="#exec-2"><b>exec</b></a> ( const TQPoint & pos, int indexAtPoint = 0 )</li>
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<li class=fn>virtual void <a href="#setActiveItem"><b>setActiveItem</b></a> ( int i )</li>
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<li class=fn>int <a href="#idAt"><b>idAt</b></a> ( int index ) const</li>
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<li class=fn>int <a href="#idAt-2"><b>idAt</b></a> ( const TQPoint & pos ) const</li>
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<li class=fn>int <a href="#insertTearOffHandle"><b>insertTearOffHandle</b></a> ( int id = -1, int index = -1 )</li>
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</ul>
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<h2>Signals</h2>
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<ul>
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<li class=fn>void <a href="#activated"><b>activated</b></a> ( int id )</li>
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<li class=fn>void <a href="#highlighted"><b>highlighted</b></a> ( int id )</li>
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<li class=fn>void <a href="#aboutToShow"><b>aboutToShow</b></a> ()</li>
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<li class=fn>void <a href="#aboutToHide"><b>aboutToHide</b></a> ()</li>
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</ul>
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<h2>Important Inherited Members</h2>
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<ul>
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<li class=fn>int <a href="#insertItem"><b>insertItem</b></a> ( const TQString & text, const TQObject * receiver, const char * member, const TQKeySequence & accel = 0, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-2"><b>insertItem</b></a> ( const TQIconSet & icon, const TQString & text, const TQObject * receiver, const char * member, const TQKeySequence & accel = 0, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-3"><b>insertItem</b></a> ( const TQPixmap & pixmap, const TQObject * receiver, const char * member, const TQKeySequence & accel = 0, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-4"><b>insertItem</b></a> ( const TQIconSet & icon, const TQPixmap & pixmap, const TQObject * receiver, const char * member, const TQKeySequence & accel = 0, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-5"><b>insertItem</b></a> ( const TQString & text, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-6"><b>insertItem</b></a> ( const TQIconSet & icon, const TQString & text, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-7"><b>insertItem</b></a> ( const TQString & text, TQPopupMenu * popup, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-8"><b>insertItem</b></a> ( const TQIconSet & icon, const TQString & text, TQPopupMenu * popup, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-9"><b>insertItem</b></a> ( const TQPixmap & pixmap, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-a"><b>insertItem</b></a> ( const TQIconSet & icon, const TQPixmap & pixmap, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-b"><b>insertItem</b></a> ( const TQPixmap & pixmap, TQPopupMenu * popup, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-c"><b>insertItem</b></a> ( const TQIconSet & icon, const TQPixmap & pixmap, TQPopupMenu * popup, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-d"><b>insertItem</b></a> ( TQWidget * widget, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-e"><b>insertItem</b></a> ( const TQIconSet & icon, TQCustomMenuItem * custom, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertItem-f"><b>insertItem</b></a> ( TQCustomMenuItem * custom, int id = -1, int index = -1 )</li>
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<li class=fn>int <a href="#insertSeparator"><b>insertSeparator</b></a> ( int index = -1 )</li>
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<li class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( int id )</li>
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<li class=fn>void <a href="#removeItemAt"><b>removeItemAt</b></a> ( int index )</li>
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<li class=fn>void <a href="#clear"><b>clear</b></a> ()</li>
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<li class=fn>TQKeySequence <a href="#accel"><b>accel</b></a> ( int id ) const</li>
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<li class=fn>void <a href="#setAccel"><b>setAccel</b></a> ( const TQKeySequence & key, int id )</li>
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<li class=fn>TQIconSet * <a href="#iconSet"><b>iconSet</b></a> ( int id ) const</li>
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<li class=fn>TQString <a href="#text"><b>text</b></a> ( int id ) const</li>
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<li class=fn>TQPixmap * <a href="#pixmap"><b>pixmap</b></a> ( int id ) const</li>
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<li class=fn>void <a href="#setWhatsThis"><b>setWhatsThis</b></a> ( int id, const TQString & text )</li>
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<li class=fn>TQString <a href="#whatsThis"><b>whatsThis</b></a> ( int id ) const</li>
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<li class=fn>void <a href="#changeItem"><b>changeItem</b></a> ( int id, const TQString & text )</li>
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<li class=fn>void <a href="#changeItem-2"><b>changeItem</b></a> ( int id, const TQPixmap & pixmap )</li>
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<li class=fn>void <a href="#changeItem-3"><b>changeItem</b></a> ( int id, const TQIconSet & icon, const TQString & text )</li>
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<li class=fn>void <a href="#changeItem-4"><b>changeItem</b></a> ( int id, const TQIconSet & icon, const TQPixmap & pixmap )</li>
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<li class=fn>bool <a href="#isItemEnabled"><b>isItemEnabled</b></a> ( int id ) const</li>
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<li class=fn>void <a href="#setItemEnabled"><b>setItemEnabled</b></a> ( int id, bool enable )</li>
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<li class=fn>bool <a href="#isItemChecked"><b>isItemChecked</b></a> ( int id ) const</li>
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<li class=fn>void <a href="#setItemChecked"><b>setItemChecked</b></a> ( int id, bool check )</li>
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<li class=fn>bool <a href="#isItemVisible"><b>isItemVisible</b></a> ( int id ) const</li>
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<li class=fn>void <a href="#setItemVisible"><b>setItemVisible</b></a> ( int id, bool visible )</li>
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<li class=fn>bool <a href="#connectItem"><b>connectItem</b></a> ( int id, const TQObject * receiver, const char * member )</li>
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<li class=fn>bool <a href="#disconnectItem"><b>disconnectItem</b></a> ( int id, const TQObject * receiver, const char * member )</li>
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<li class=fn>bool <a href="#setItemParameter"><b>setItemParameter</b></a> ( int id, int param )</li>
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<li class=fn>int <a href="#itemParameter"><b>itemParameter</b></a> ( int id ) const</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>bool <a href="#checkable-prop"><b>checkable</b></a> - whether the display of check marks on menu items is enabled</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>int <a href="#itemHeight"><b>itemHeight</b></a> ( int row ) const</li>
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<li class=fn>int <a href="#itemHeight-2"><b>itemHeight</b></a> ( TQMenuItem * mi ) const</li>
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<li class=fn>void <a href="#drawItem"><b>drawItem</b></a> ( TQPainter * p, int tab_, TQMenuItem * mi, bool act, int x, int y, int w, int h )</li>
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<li class=fn>virtual void <a href="#drawContents"><b>drawContents</b></a> ( TQPainter * p )</li>
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<li class=fn>int <a href="#columns"><b>columns</b></a> () const</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQPopupMenu class provides a popup menu widget.
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<p>
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<p> A popup menu widget is a selection menu. It can be either a
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pull-down menu in a menu bar or a standalone context (popup) menu.
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Pull-down menus are shown by the menu bar when the user clicks on
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the respective item or presses the specified shortcut key. Use
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<a href="ntqmenudata.html#insertItem">TQMenuBar::insertItem</a>() to insert a popup menu into a menu bar.
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Show a context menu either asynchronously with <a href="#popup">popup</a>() or
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synchronously with <a href="#exec">exec</a>().
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<p> Technically, a popup menu consists of a list of menu items. You
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add items with <a href="ntqmenudata.html#insertItem">insertItem</a>(). An item is either a string, a pixmap
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or a custom item that provides its own drawing function (see
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<a href="qcustommenuitem.html">TQCustomMenuItem</a>). In addition, items can have an optional icon
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drawn on the very left side and an accelerator key such as
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"Ctrl+X".
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<p> There are three kinds of menu items: separators, menu items that
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perform an action and menu items that show a submenu. Separators
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are inserted with <a href="ntqmenudata.html#insertSeparator">insertSeparator</a>(). For submenus, you pass a
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pointer to a TQPopupMenu in your call to insertItem(). All other
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items are considered action items.
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<p> When inserting action items you usually specify a receiver and a
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slot. The receiver will be notifed whenever the item is selected.
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In addition, TQPopupMenu provides two signals, <a href="#activated">activated</a>() and
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<a href="#highlighted">highlighted</a>(), which signal the identifier of the respective menu
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item. It is sometimes practical to connect several items to one
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slot. To distinguish between them, specify a slot that takes an
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integer argument and use <a href="ntqmenudata.html#setItemParameter">setItemParameter</a>() to associate a unique
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value with each item.
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<p> You clear a popup menu with <a href="ntqmenudata.html#clear">clear</a>() and remove single items with
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<a href="ntqmenudata.html#removeItem">removeItem</a>() or <a href="ntqmenudata.html#removeItemAt">removeItemAt</a>().
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<p> A popup menu can display check marks for certain items when
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enabled with <a href="#setCheckable">setCheckable</a>(TRUE). You check or uncheck items with
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<a href="ntqmenudata.html#setItemChecked">setItemChecked</a>().
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<p> Items are either enabled or disabled. You toggle their state with
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<a href="ntqmenudata.html#setItemEnabled">setItemEnabled</a>(). Just before a popup menu becomes visible, it
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emits the <a href="#aboutToShow">aboutToShow</a>() signal. You can use this signal to set the
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correct enabled/disabled states of all menu items before the user
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sees it. The corresponding <a href="#aboutToHide">aboutToHide</a>() signal is emitted when
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the menu hides again.
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<p> You can provide What's This? help for single menu items with
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<a href="ntqmenudata.html#setWhatsThis">setWhatsThis</a>(). See <a href="ntqwhatsthis.html">TQWhatsThis</a> for general information about this
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kind of lightweight online help.
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<p> For ultimate flexibility, you can also add entire widgets as items
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into a popup menu (for example, a color selector).
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<p> A TQPopupMenu can also provide a tear-off menu. A tear-off menu is
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a top-level window that contains a copy of the menu. This makes it
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possible for the user to "tear off" frequently used menus and
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position them in a convenient place on the screen. If you want
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that functionality for a certain menu, insert a tear-off handle
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with <a href="#insertTearOffHandle">insertTearOffHandle</a>(). When using tear-off menus, bear in
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mind that the concept isn't typically used on Microsoft Windows so
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users may not be familiar with it. Consider using a <a href="ntqtoolbar.html">TQToolBar</a>
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instead. Tear-off menus cannot contain custom widgets; if the
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original menu contains a custom widget item, this item is omitted.
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<p> <a href="menu-example.html">menu/menu.cpp</a> is an example of
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<a href="ntqmenubar.html">TQMenuBar</a> and TQPopupMenu use.
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<p>
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<p> <img src=qpopmenu-m.png> <img src=qpopmenu-w.png>
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<p> <p>See also <a href="ntqmenubar.html">TQMenuBar</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Menu, Drop-Down and
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Pop-Up</a>, <a href="application.html">Main Window and Related Classes</a>, and <a href="basic.html">Basic Widgets</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQPopupMenu"></a>TQPopupMenu::TQPopupMenu ( <a href="tqwidget.html">TQWidget</a> * parent = 0, const char * name = 0 )
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</h3>
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Constructs a popup menu called <em>name</em> with parent <em>parent</em>.
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<p> Although a popup menu is always a top-level widget, if a parent is
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passed the popup menu will be deleted when that parent is
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destroyed (as with any other <a href="tqobject.html">TQObject</a>).
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<h3 class=fn><a name="~TQPopupMenu"></a>TQPopupMenu::~TQPopupMenu ()
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</h3>
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Destroys the popup menu.
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<h3 class=fn>void <a name="aboutToHide"></a>TQPopupMenu::aboutToHide ()<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted just before the popup menu is hidden after
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it has been displayed.
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<p> <b>Warning:</b> Do not open a widget in a slot connected to this signal.
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<p> <p>See also <a href="#aboutToShow">aboutToShow</a>(), <a href="ntqmenudata.html#setItemEnabled">setItemEnabled</a>(), <a href="ntqmenudata.html#setItemChecked">setItemChecked</a>(), <a href="ntqmenudata.html#insertItem">insertItem</a>(), and <a href="ntqmenudata.html#removeItem">removeItem</a>().
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<h3 class=fn>void <a name="aboutToShow"></a>TQPopupMenu::aboutToShow ()<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted just before the popup menu is displayed.
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You can connect it to any slot that sets up the menu contents
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(e.g. to ensure that the right items are enabled).
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<p> <p>See also <a href="#aboutToHide">aboutToHide</a>(), <a href="ntqmenudata.html#setItemEnabled">setItemEnabled</a>(), <a href="ntqmenudata.html#setItemChecked">setItemChecked</a>(), <a href="ntqmenudata.html#insertItem">insertItem</a>(), and <a href="ntqmenudata.html#removeItem">removeItem</a>().
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<p>Example: <a href="mdi-example.html#x2048">mdi/application.cpp</a>.
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<h3 class=fn><a href="ntqkeysequence.html">TQKeySequence</a> <a name="accel"></a>TQMenuData::accel ( int id ) const
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</h3>
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Returns the accelerator key that has been defined for the menu
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item <em>id</em>, or 0 if it has no accelerator key or if there is no
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such menu item.
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<p> <p>See also <a href="ntqmenudata.html#setAccel">setAccel</a>(), <a href="ntqaccel.html">TQAccel</a>, and <a href="qnamespace-h.html">ntqnamespace.h</a>.
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<h3 class=fn>void <a name="activated"></a>TQPopupMenu::activated ( int id )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when a menu item is selected; <em>id</em> is the
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id of the selected item.
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<p> Normally, you connect each menu item to a single slot using
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<a href="ntqmenudata.html#insertItem">TQMenuData::insertItem</a>(), but sometimes you will want to connect
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several items to a single slot (most often if the user selects
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from an array). This signal is useful in such cases.
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<p> <p>See also <a href="#highlighted">highlighted</a>() and <a href="ntqmenudata.html#insertItem">TQMenuData::insertItem</a>().
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<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>.
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<h3 class=fn>void <a name="changeItem"></a>TQMenuData::changeItem ( int id, const <a href="tqstring.html">TQString</a> & text )
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</h3>
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Changes the text of the menu item <em>id</em> to <em>text</em>. If the item
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has an icon, the icon remains unchanged.
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<p> <p>See also <a href="ntqmenudata.html#text">text</a>().
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<h3 class=fn>void <a name="changeItem-2"></a>TQMenuData::changeItem ( int id, const <a href="ntqpixmap.html">TQPixmap</a> & pixmap )
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Changes the pixmap of the menu item <em>id</em> to the pixmap <em>pixmap</em>.
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If the item has an icon, the icon is unchanged.
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<p> <p>See also <a href="ntqmenudata.html#pixmap">pixmap</a>().
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<h3 class=fn>void <a name="changeItem-3"></a>TQMenuData::changeItem ( int id, const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="tqstring.html">TQString</a> & text )
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Changes the iconset and text of the menu item <em>id</em> to the <em>icon</em>
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and <em>text</em> respectively.
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<p> <p>See also <a href="ntqmenudata.html#pixmap">pixmap</a>().
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<h3 class=fn>void <a name="changeItem-4"></a>TQMenuData::changeItem ( int id, const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="ntqpixmap.html">TQPixmap</a> & pixmap )
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Changes the iconset and pixmap of the menu item <em>id</em> to <em>icon</em>
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and <em>pixmap</em> respectively.
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<p> <p>See also <a href="ntqmenudata.html#pixmap">pixmap</a>().
|
|
|
|
<h3 class=fn>void <a name="clear"></a>TQMenuData::clear ()
|
|
</h3>
|
|
Removes all menu items.
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>() and <a href="ntqmenudata.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>TQPopupMenu::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="tqwidget.html#sizeHint-prop">sizeHint</a>.
|
|
|
|
<h3 class=fn>bool <a name="connectItem"></a>TQMenuData::connectItem ( int id, const <a href="tqobject.html">TQObject</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="ntqmenudata.html#disconnectItem">disconnectItem</a>() and <a href="ntqmenudata.html#setItemParameter">setItemParameter</a>().
|
|
|
|
<p>Example: <a href="menu-example.html#x1868">menu/menu.cpp</a>.
|
|
<h3 class=fn>bool <a name="disconnectItem"></a>TQMenuData::disconnectItem ( int id, const <a href="tqobject.html">TQObject</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="ntqmenudata.html#connectItem">connectItem</a>() and <a href="ntqmenudata.html#setItemParameter">setItemParameter</a>().
|
|
|
|
<h3 class=fn>void <a name="drawContents"></a>TQPopupMenu::drawContents ( <a href="ntqpainter.html">TQPainter</a> * p )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
Draws all menu items using painter <em>p</em>.
|
|
|
|
<p>Reimplemented from <a href="ntqframe.html#drawContents">TQFrame</a>.
|
|
<h3 class=fn>void <a name="drawItem"></a>TQPopupMenu::drawItem ( <a href="ntqpainter.html">TQPainter</a> * p, int tab_, TQMenuItem * 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="tqstyle.html#drawControl">TQStyle::drawControl</a>().
|
|
|
|
<h3 class=fn>int <a name="exec"></a>TQPopupMenu::exec ()
|
|
</h3>
|
|
Executes this popup synchronously.
|
|
<p> This is equivalent to <tt>exec(mapToGlobal(TQPoint(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>(TQCursor::<a href="ntqcursor.html#pos">pos</a>());
|
|
</pre>
|
|
|
|
or aligned to a widget:
|
|
<pre>
|
|
<a href="#exec">exec</a>(somewidget.mapToGlobal(TQPoint(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>TQPopupMenu::exec ( const <a href="ntqpoint.html">TQPoint</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="tqwidget.html#mapToGlobal">TQWidget::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>( TQCursor::<a href="ntqcursor.html#pos">pos</a>() );
|
|
</pre>
|
|
|
|
or aligned to a widget:
|
|
<pre>
|
|
<a href="#exec">exec</a>( somewidget.mapToGlobal(TQPoint(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="tqwidget.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="tqwidget.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="tqwidget.html#sizeHint-prop">sizeHint</a>.
|
|
|
|
<h3 class=fn>void <a name="highlighted"></a>TQPopupMenu::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="ntqmenudata.html#insertItem">TQMenuData::insertItem</a>().
|
|
|
|
<h3 class=fn><a href="tqiconset.html">TQIconSet</a> * <a name="iconSet"></a>TQMenuData::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="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#text">text</a>(), and <a href="ntqmenudata.html#pixmap">pixmap</a>().
|
|
|
|
<h3 class=fn>int <a name="idAt"></a>TQPopupMenu::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="ntqmenudata.html#setId">TQMenuData::setId</a>() and <a href="ntqmenudata.html#indexOf">TQMenuData::indexOf</a>().
|
|
|
|
<p>Example: <a href="scrollview-example.html#x643">scrollview/scrollview.cpp</a>.
|
|
<h3 class=fn>int <a name="idAt-2"></a>TQPopupMenu::idAt ( const <a href="ntqpoint.html">TQPoint</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>TQMenuData::insertItem ( const <a href="tqstring.html">TQString</a> & text, const <a href="tqobject.html">TQObject</a> * receiver, const char * member, const <a href="ntqkeysequence.html">TQKeySequence</a> & accel = 0, int id = -1, int index = -1 )
|
|
</h3>
|
|
The family of <a href="ntqmenudata.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">TQCustomMenuItem</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="ntqmenubar.html">TQMenuBar</a> *mainMenu = new <a href="ntqmenubar.html">TQMenuBar</a>;
|
|
TQPopupMenu *fileMenu = new TQPopupMenu;
|
|
fileMenu-><a href="ntqmenudata.html#insertItem">insertItem</a>( "New", myView, TQ_SLOT(newFile()), CTRL+Key_N );
|
|
fileMenu-><a href="ntqmenudata.html#insertItem">insertItem</a>( "Open", myView, TQ_SLOT(open()), CTRL+Key_O );
|
|
mainMenu-><a href="ntqmenudata.html#insertItem">insertItem</a>( "File", fileMenu );
|
|
</pre>
|
|
|
|
<p> Not all insert functions take an object/slot parameter or an
|
|
accelerator key. Use <a href="ntqmenudata.html#connectItem">connectItem</a>() and <a href="ntqmenudata.html#setAccel">setAccel</a>() on those items.
|
|
<p> If you need to translate accelerators, use <a href="tqobject.html#tr">tr</a>() with the text and
|
|
accelerator. (For translations use a string <a href="ntqkeysequence.html">key
|
|
sequence</a>.):
|
|
<pre>
|
|
fileMenu->insertItem( <a href="tqobject.html#tr">tr</a>("Open"), myView, TQ_SLOT(open()),
|
|
<a href="tqobject.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="tqiconset.html">TQIconSet</a> parameter to specify the
|
|
little menu item icon. Note that you can always pass a <a href="ntqpixmap.html">TQPixmap</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 TQt 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 TQt are not application-global,
|
|
instead they are bound to a certain top-level window. For example,
|
|
accelerators in TQPopupMenu 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="tqwidget.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="ntqaccel.html">TQAccel</a>
|
|
object.
|
|
<p> <b>Warning:</b> Be careful when passing a literal 0 to <a href="ntqmenudata.html#insertItem">insertItem</a>()
|
|
because some C++ compilers choose the wrong overloaded function.
|
|
Cast the 0 to what you mean, e.g. <tt>(TQObject*)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 TQt
|
|
version.
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqaccel.html">TQAccel</a>, and <a href="qnamespace-h.html">ntqnamespace.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>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="tqstring.html">TQString</a> & text, const <a href="tqobject.html">TQObject</a> * receiver, const char * member, const <a href="ntqkeysequence.html">TQKeySequence</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqaccel.html">TQAccel</a>, and <a href="qnamespace-h.html">ntqnamespace.h</a>.
|
|
|
|
<h3 class=fn>int <a name="insertItem-3"></a>TQMenuData::insertItem ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, const <a href="tqobject.html">TQObject</a> * receiver, const char * member, const <a href="ntqkeysequence.html">TQKeySequence</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="ntqpixmap.html#mask">TQPixmap::mask</a>()).
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-4"></a>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, const <a href="tqobject.html">TQObject</a> * receiver, const char * member, const <a href="ntqkeysequence.html">TQKeySequence</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="ntqpixmap.html#mask">TQPixmap::mask</a>()).
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqaccel.html">TQAccel</a>, and <a href="qnamespace-h.html">ntqnamespace.h</a>.
|
|
|
|
<h3 class=fn>int <a name="insertItem-5"></a>TQMenuData::insertItem ( const <a href="tqstring.html">TQString</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-6"></a>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="tqstring.html">TQString</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-7"></a>TQMenuData::insertItem ( const <a href="tqstring.html">TQString</a> & text, <a href="ntqpopupmenu.html">TQPopupMenu</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-8"></a>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="tqstring.html">TQString</a> & text, <a href="ntqpopupmenu.html">TQPopupMenu</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-9"></a>TQMenuData::insertItem ( const <a href="ntqpixmap.html">TQPixmap</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="ntqpixmap.html#mask">TQPixmap::mask</a>()).
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-a"></a>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="ntqpixmap.html">TQPixmap</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-b"></a>TQMenuData::insertItem ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, <a href="ntqpopupmenu.html">TQPopupMenu</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-c"></a>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, <a href="ntqpopupmenu.html">TQPopupMenu</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="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>(), <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#setAccel">setAccel</a>(), and <a href="ntqmenudata.html#connectItem">connectItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-d"></a>TQMenuData::insertItem ( <a href="tqwidget.html">TQWidget</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="tqwidget.html#isFocusEnabled">TQWidget::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="ntqlabel.html">TQLabel</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="ntqlineedit.html">TQLineEdit</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="tqwidget.html#focusNextPrevChild">TQWidget::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="tqwidget.html#isVisible">isVisible</a>() &&
|
|
<a href="tqwidget.html#parentWidget">parentWidget</a>() &&
|
|
<a href="tqwidget.html#parentWidget">parentWidget</a>()->inherits("TQPopupMenu") )
|
|
<a href="tqwidget.html#parentWidget">parentWidget</a>()->close();
|
|
</pre>
|
|
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>().
|
|
|
|
<h3 class=fn>int <a name="insertItem-e"></a>TQMenuData::insertItem ( const <a href="tqiconset.html">TQIconSet</a> & icon, <a href="qcustommenuitem.html">TQCustomMenuItem</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="ntqmenudata.html#connectItem">connectItem</a>().
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqmenudata.html#removeItem">removeItem</a>(), and <a href="qcustommenuitem.html">TQCustomMenuItem</a>.
|
|
|
|
<h3 class=fn>int <a name="insertItem-f"></a>TQMenuData::insertItem ( <a href="qcustommenuitem.html">TQCustomMenuItem</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="ntqmenudata.html#connectItem">connectItem</a>().
|
|
<p> Returns the allocated <a href="ntqmenudata.html#menu-identifier">menu identifier</a> number (<em>id</em> if <em>id</em> >= 0).
|
|
<p> <p>See also <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqmenudata.html#removeItem">removeItem</a>(), and <a href="qcustommenuitem.html">TQCustomMenuItem</a>.
|
|
|
|
<h3 class=fn>int <a name="insertSeparator"></a>TQMenuData::insertSeparator ( int index = -1 )
|
|
</h3>
|
|
Inserts a separator at position <em>index</em>, and returns the <a href="ntqmenudata.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>TQPopupMenu::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>TQPopupMenu::isCheckable () const
|
|
</h3><p>Returns TRUE if the display of check marks on menu items is enabled; otherwise returns FALSE.
|
|
See the <a href="ntqpopupmenu.html#checkable-prop">"checkable"</a> property for details.
|
|
<h3 class=fn>bool <a name="isItemChecked"></a>TQMenuData::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="ntqmenudata.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>TQMenuData::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="ntqmenudata.html#setItemEnabled">setItemEnabled</a>() and <a href="ntqmenudata.html#isItemVisible">isItemVisible</a>().
|
|
|
|
<h3 class=fn>bool <a name="isItemVisible"></a>TQMenuData::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="ntqmenudata.html#setItemVisible">setItemVisible</a>().
|
|
|
|
<h3 class=fn>int <a name="itemHeight"></a>TQPopupMenu::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>TQPopupMenu::itemHeight ( TQMenuItem * 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>TQMenuData::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="ntqmenudata.html#setItemParameter">setItemParameter</a>(), the value defaults to <em>id</em>.
|
|
<p> <p>See also <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqmenudata.html#disconnectItem">disconnectItem</a>(), and <a href="ntqmenudata.html#setItemParameter">setItemParameter</a>().
|
|
|
|
<h3 class=fn><a href="ntqpixmap.html">TQPixmap</a> * <a name="pixmap"></a>TQMenuData::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="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#text">text</a>(), and <a href="ntqmenudata.html#iconSet">iconSet</a>().
|
|
|
|
<h3 class=fn>void <a name="popup"></a>TQPopupMenu::popup ( const <a href="ntqpoint.html">TQPoint</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="tqwidget.html#mapToGlobal">TQWidget::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="tqwidget.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="tqwidget.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>TQMenuData::removeItem ( int id )
|
|
</h3>
|
|
|
|
<p> Removes the menu item that has the identifier <em>id</em>.
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItemAt">removeItemAt</a>() and <a href="ntqmenudata.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>TQMenuData::removeItemAt ( int index )
|
|
</h3>
|
|
Removes the menu item at position <em>index</em>.
|
|
<p> <p>See also <a href="ntqmenudata.html#removeItem">removeItem</a>() and <a href="ntqmenudata.html#clear">clear</a>().
|
|
|
|
<h3 class=fn>void <a name="setAccel"></a>TQMenuData::setAccel ( const <a href="ntqkeysequence.html">TQKeySequence</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="ntqt.html#Modifier-enum">SHIFT</a>, <a href="ntqt.html#Modifier-enum">CTRL</a>, <a href="ntqt.html#Modifier-enum">ALT</a> or <a href="ntqt.html#Modifier-enum">UNICODE_ACCEL</a> (OR'ed or
|
|
added). The header file <a href="qnamespace-h.html">ntqnamespace.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="ntqt.html#Modifier-enum">CTRL</a> + <a href="ntqt.html#Key-enum">Key_O</a> produces "Ctrl+O". The
|
|
text is formatted differently for different platforms.
|
|
<p> Note that keyboard accelerators in TQt are not application-global,
|
|
instead they are bound to a certain top-level window. For example,
|
|
accelerators in TQPopupMenu 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="tqwidget.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="ntqaccel.html">TQAccel</a>
|
|
object.
|
|
<p> Example:
|
|
<pre>
|
|
<a href="ntqmenubar.html">TQMenuBar</a> *mainMenu = new <a href="ntqmenubar.html">TQMenuBar</a>;
|
|
TQPopupMenu *fileMenu = new TQPopupMenu; // file sub menu
|
|
fileMenu-><a href="ntqmenudata.html#insertItem">insertItem</a>( "Open Document", 67 ); // add "Open" item
|
|
fileMenu-><a href="ntqmenudata.html#setAccel">setAccel</a>( CTRL + Key_O, 67 ); // Ctrl+O to open
|
|
fileMenu-><a href="ntqmenudata.html#insertItem">insertItem</a>( "Quit", 69 ); // add "Quit" item
|
|
fileMenu-><a href="ntqmenudata.html#setAccel">setAccel</a>( CTRL + ALT + Key_Delete, 69 ); // add Alt+Del to quit
|
|
mainMenu-><a href="ntqmenudata.html#insertItem">insertItem</a>( "File", fileMenu ); // add the file menu
|
|
</pre>
|
|
|
|
<p> If you need to translate accelerators, use <a href="tqobject.html#tr">tr</a>() with a string:
|
|
<pre>
|
|
fileMenu->setAccel( <a href="tqobject.html#tr">tr</a>("Ctrl+O"), 67 );
|
|
</pre>
|
|
|
|
<p> You can also specify the accelerator in the <a href="ntqmenudata.html#insertItem">insertItem</a>() function.
|
|
You may prefer to use <a href="ntqaction.html">TQAction</a> to associate accelerators with menu
|
|
items.
|
|
<p> <p>See also <a href="ntqmenudata.html#accel">accel</a>(), <a href="ntqmenudata.html#insertItem">insertItem</a>(), <a href="ntqaccel.html">TQAccel</a>, and <a href="ntqaction.html">TQAction</a>.
|
|
|
|
<p>Example: <a href="menu-example.html#x1871">menu/menu.cpp</a>.
|
|
<h3 class=fn>void <a name="setActiveItem"></a>TQPopupMenu::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>TQPopupMenu::setCheckable ( bool )<tt> [virtual]</tt>
|
|
</h3><p>Sets whether the display of check marks on menu items is enabled.
|
|
See the <a href="ntqpopupmenu.html#checkable-prop">"checkable"</a> property for details.
|
|
<h3 class=fn>void <a name="setItemChecked"></a>TQMenuData::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">TQPopupMenu::setCheckable</a>( TRUE ) if necessary.
|
|
<p> <p>See also <a href="ntqmenudata.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>.
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<h3 class=fn>void <a name="setItemEnabled"></a>TQMenuData::setItemEnabled ( int id, bool enable )
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</h3>
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If <em>enable</em> is TRUE, enables the menu item with identifier <em>id</em>;
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otherwise disables the menu item with identifier <em>id</em>.
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<p> <p>See also <a href="ntqmenudata.html#isItemEnabled">isItemEnabled</a>().
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<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>.
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<h3 class=fn>bool <a name="setItemParameter"></a>TQMenuData::setItemParameter ( int id, int param )
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</h3>
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Sets the parameter of the activation signal of item <em>id</em> to <em>param</em>.
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<p> If any receiver takes an integer parameter, this value is passed.
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<p> <p>See also <a href="ntqmenudata.html#connectItem">connectItem</a>(), <a href="ntqmenudata.html#disconnectItem">disconnectItem</a>(), and <a href="ntqmenudata.html#itemParameter">itemParameter</a>().
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<p>Example: <a href="mdi-example.html#x2034">mdi/application.cpp</a>.
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<h3 class=fn>void <a name="setItemVisible"></a>TQMenuData::setItemVisible ( int id, bool visible )
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</h3>
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If <em>visible</em> is TRUE, shows the menu item with id <em>id</em>; otherwise
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hides the menu item with id <em>id</em>.
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<p> <p>See also <a href="ntqmenudata.html#isItemVisible">isItemVisible</a>() and <a href="ntqmenudata.html#isItemEnabled">isItemEnabled</a>().
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<h3 class=fn>void <a name="setWhatsThis"></a>TQMenuData::setWhatsThis ( int id, const <a href="tqstring.html">TQString</a> & text )
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</h3>
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Sets <em>text</em> as What's This help for the menu item with identifier
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<em>id</em>.
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<p> <p>See also <a href="ntqmenudata.html#whatsThis">whatsThis</a>().
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<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>.
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<h3 class=fn><a href="tqstring.html">TQString</a> <a name="text"></a>TQMenuData::text ( int id ) const
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</h3>
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Returns the text that has been set for menu item <em>id</em>, or
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<a href="tqstring.html#TQString-null">TQString::null</a> if no text has been set.
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<p> <p>See also <a href="ntqmenudata.html#changeItem">changeItem</a>(), <a href="ntqmenudata.html#pixmap">pixmap</a>(), and <a href="ntqmenudata.html#iconSet">iconSet</a>().
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<p>Examples: <a href="qdir-example.html#x1831">qdir/qdir.cpp</a> and <a href="showimg-example.html#x1332">showimg/showimg.cpp</a>.
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<h3 class=fn>void <a name="updateItem"></a>TQPopupMenu::updateItem ( int id )<tt> [virtual]</tt>
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</h3>
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Updates the item with identity <em>id</em>.
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<p>Reimplemented from <a href="ntqmenudata.html#updateItem">TQMenuData</a>.
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<h3 class=fn><a href="tqstring.html">TQString</a> <a name="whatsThis"></a>TQMenuData::whatsThis ( int id ) const
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</h3>
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Returns the What's This help text for the item with identifier <em>id</em> or <a href="tqstring.html#TQString-null">TQString::null</a> if no text has yet been defined.
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<p> <p>See also <a href="ntqmenudata.html#setWhatsThis">setWhatsThis</a>().
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<hr><h2>Property Documentation</h2>
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<h3 class=fn>bool <a name="checkable-prop"></a>checkable</h3>
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<p>This property holds whether the display of check marks on menu items is enabled.
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<p>When TRUE, the display of check marks on menu items is enabled.
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Checking is always enabled when in Windows-style.
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<p> <p>See also <a href="ntqmenudata.html#setItemChecked">TQMenuData::setItemChecked</a>().
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<p>Set this property's value with <a href="#setCheckable">setCheckable</a>() and get this property's value with <a href="#isCheckable">isCheckable</a>().
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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