QMenuData(3qt)QMenuData(3qt)NAMEQMenuData - Base class for QMenuBar and QPopupMenu
SYNOPSIS
#include <qmenudata.h>
Inherited by QMenuBar and QPopupMenu.
Public Members
QMenuData ()
virtual ~QMenuData ()
uint count () const
int insertItem ( const QString & text, const QObject * receiver, const
char * member, const QKeySequence & accel = 0, int id = -1, int
index = -1 )
int insertItem ( const QIconSet & icon, const QString & text, const
QObject * receiver, const char * member, const QKeySequence & accel
= 0, int id = -1, int index = -1 )
int insertItem ( const QPixmap & pixmap, const QObject * receiver,
const char * member, const QKeySequence & accel = 0, int id = -1,
int index = -1 )
int insertItem ( const QIconSet & icon, const QPixmap & pixmap, const
QObject * receiver, const char * member, const QKeySequence & accel
= 0, int id = -1, int index = -1 )
int insertItem ( const QString & text, int id = -1, int index = -1 )
int insertItem ( const QIconSet & icon, const QString & text, int id =
-1, int index = -1 )
int insertItem ( const QString & text, QPopupMenu * popup, int id = -1,
int index = -1 )
int insertItem ( const QIconSet & icon, const QString & text,
QPopupMenu * popup, int id = -1, int index = -1 )
int insertItem ( const QPixmap & pixmap, int id = -1, int index = -1 )
int insertItem ( const QIconSet & icon, const QPixmap & pixmap, int id
= -1, int index = -1 )
int insertItem ( const QPixmap & pixmap, QPopupMenu * popup, int id =
-1, int index = -1 )
int insertItem ( const QIconSet & icon, const QPixmap & pixmap,
QPopupMenu * popup, int id = -1, int index = -1 )
int insertItem ( QWidget * widget, int id = -1, int index = -1 )
int insertItem ( const QIconSet & icon, QCustomMenuItem * custom, int
id = -1, int index = -1 )
int insertItem ( QCustomMenuItem * custom, int id = -1, int index = -1
)
int insertSeparator ( int index = -1 )
void removeItem ( int id )
void removeItemAt ( int index )
void clear ()
QKeySequence accel ( int id ) const
void setAccel ( const QKeySequence & key, int id )
QIconSet * iconSet ( int id ) const
QString text ( int id ) const
QPixmap * pixmap ( int id ) const
void setWhatsThis ( int id, const QString & text )
QString whatsThis ( int id ) const
void changeItem ( int id, const QString & text )
void changeItem ( int id, const QPixmap & pixmap )
void changeItem ( int id, const QIconSet & icon, const QString & text )
void changeItem ( int id, const QIconSet & icon, const QPixmap & pixmap
)
void changeItem ( const QString & text, int id ) (obsolete)
void changeItem ( const QPixmap & pixmap, int id ) (obsolete)
void changeItem ( const QIconSet & icon, const QString & text, int id )
(obsolete)
bool isItemActive ( int id ) const
bool isItemEnabled ( int id ) const
void setItemEnabled ( int id, bool enable )
bool isItemChecked ( int id ) const
void setItemChecked ( int id, bool check )
bool isItemVisible ( int id ) const
void setItemVisible ( int id, bool visible )
virtual void updateItem ( int id )
int indexOf ( int id ) const
int idAt ( int index ) const
virtual void setId ( int index, int id )
bool connectItem ( int id, const QObject * receiver, const char *
member )
bool disconnectItem ( int id, const QObject * receiver, const char *
member )
bool setItemParameter ( int id, int param )
int itemParameter ( int id ) const
QMenuItem * findItem ( int id ) const
QMenuItem * findItem ( int id, QMenuData ** parent ) const
virtual void activateItemAt ( int index )
Protected Members
virtual void menuContentsChanged ()
virtual void menuStateChanged ()
virtual void menuInsPopup ( QPopupMenu * )
virtual void menuDelPopup ( QPopupMenu * )
DESCRIPTION
The QMenuData class is a base class for QMenuBar and QPopupMenu.
QMenuData has an internal list of menu items. A menu item can have a
text(), an accelerator, a pixmap(), an iconSet(), a whatsThis() text
and a popup menu (unless it is a separator). Menu items may optionally
be checked (except for separators).
The menu item sends out an activated() signal when it is chosen and a
highlighted() signal when it receives the user input focus.
Menu items are assigned the menu identifier id that is passed in
insertItem() or an automatically generated identifier if id is < 0 (the
default). The generated identifiers (negative integers) are guaranteed
to be unique within the entire application. The identifier is used to
access the menu item in other functions.
Menu items can be removed with removeItem() and removeItemAt(), or
changed with changeItem(). All menu items can be removed with clear().
Accelerators can be changed or set with setAccel(). Checkable items can
be checked or unchecked with setItemChecked(). Items can be enabled or
disabled using setItemEnabled() and connected and disconnected with
connectItem() and disconnectItem() respectively. By default, newly
created menu items are visible. They can be hidden (and shown again)
with setItemVisible().
Menu items are stored in a list. Use findItem() to find an item by its
list position or by its menu identifier. (See also indexOf() and
idAt().)
See also QAccel, QPopupMenu, QAction, and Miscellaneous Classes.
MEMBER FUNCTION DOCUMENTATIONQMenuData::QMenuData ()
Constructs an empty menu data list.
QMenuData::~QMenuData () [virtual]
Removes all menu items and disconnects any signals that have been
connected.
QKeySequence QMenuData::accel ( int id ) const
Returns the accelerator key that has been defined for the menu item id,
or 0 if it has no accelerator key or if there is no such menu item.
See also setAccel(), QAccel, and qnamespace.h.
void QMenuData::activateItemAt ( int index ) [virtual]
Activates the menu item at position index.
If the index is invalid (for example, -1), the object itself is
deactivated.
void QMenuData::changeItem ( int id, const QString & text )
Changes the text of the menu item id to text. If the item has an icon,
the icon remains unchanged.
See also text().
void QMenuData::changeItem ( int id, const QPixmap & pixmap )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Changes the pixmap of the menu item id to the pixmap pixmap. If the
item has an icon, the icon is unchanged.
See also pixmap().
void QMenuData::changeItem ( int id, const QIconSet & icon, const QString &
text )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Changes the iconset and text of the menu item id to the icon and text
respectively.
See also pixmap().
void QMenuData::changeItem ( int id, const QIconSet & icon, const QPixmap &
pixmap )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Changes the iconset and pixmap of the menu item id to icon and pixmap
respectively.
See also pixmap().
void QMenuData::changeItem ( const QString & text, int id )
This function is obsolete. It is provided to keep old source working.
We strongly advise against using it in new code.
Changes the text of the menu item id. If the item has an icon, the icon
remains unchanged.
See also text().
void QMenuData::changeItem ( const QPixmap & pixmap, int id )
This function is obsolete. It is provided to keep old source working.
We strongly advise against using it in new code.
Changes the pixmap of the menu item id. If the item has an icon, the
icon remains unchanged.
See also pixmap().
void QMenuData::changeItem ( const QIconSet & icon, const QString & text, int
id )
This function is obsolete. It is provided to keep old source working.
We strongly advise against using it in new code.
Changes the icon and text of the menu item id.
See also pixmap().
void QMenuData::clear ()
Removes all menu items.
See also removeItem() and removeItemAt().
Examples:
bool QMenuData::connectItem ( int id, const QObject * receiver, const char *
member )
Connects the menu item with identifier id to receiver's member slot or
signal.
The receiver's slot (or signal) is activated when the menu item is
activated.
See also disconnectItem() and setItemParameter().
Example: menu/menu.cpp.
uint QMenuData::count () const
Returns the number of items in the menu.
bool QMenuData::disconnectItem ( int id, const QObject * receiver, const char
* member )
Disconnects the receiver's member from the menu item with identifier
id.
All connections are removed when the menu data object is destroyed.
See also connectItem() and setItemParameter().
QMenuItem * QMenuData::findItem ( int id ) const
Returns the menu item with identifier id, or 0 if there is no item with
this identifier.
Note that QMenuItem is an internal class, and that you should not need
to call this function. Use the higher level functions like text(),
pixmap() and changeItem() to get and modify menu item attributes
instead.
See also indexOf().
Example: chart/chartform.cpp.
QMenuItem * QMenuData::findItem ( int id, QMenuData ** parent ) const
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Returns the menu item with identifier id, or 0 if there is no item with
this identifier. Changes *parent to point to the parent of the return
value.
Note that QMenuItem is an internal class, and that you should not need
to call this function. Use the higher level functions like text(),
pixmap() and changeItem() to get and modify menu item attributes
instead.
See also indexOf().
QIconSet * QMenuData::iconSet ( int id ) const
Returns the icon set that has been set for menu item id, or 0 if no
icon set has been set.
See also changeItem(), text(), and pixmap().
int QMenuData::idAt ( int index ) const
Returns the identifier of the menu item at position index in the
internal list, or -1 if index is out of range.
See also setId() and indexOf().
int QMenuData::indexOf ( int id ) const
Returns the index of the menu item with identifier id, or -1 if there
is no item with this identifier.
See also idAt() and findItem().
Example: scrollview/scrollview.cpp.
int QMenuData::insertItem ( const QString & text, const QObject * receiver,
const char * member, const QKeySequence & accel = 0, int id = -1, int
index = -1 )
The family of insertItem() functions inserts menu items into a popup
menu or a menu bar.
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 QCustomMenuItem) or even widgets
into popup menus.
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.
The number of insert functions may look confusing, but they are
actually quite simple to use.
This default version inserts a menu item with the text text, the
accelerator key accel, an id and an optional index and connects it to
the slot member in the object receiver.
Example:
QMenuBar *mainMenu = new QMenuBar;
QPopupMenu *fileMenu = new QPopupMenu;
fileMenu->insertItem( "New", myView, SLOT(newFile()), CTRL+Key_N );
fileMenu->insertItem( "Open", myView, SLOT(open()), CTRL+Key_O );
mainMenu->insertItem( "File", fileMenu );
Not all insert functions take an object/slot parameter or an
accelerator key. Use connectItem() and setAccel() on those items.
If you need to translate accelerators, use tr() with the text and
accelerator. (For translations use a string key sequence.):
fileMenu->insertItem( tr("Open"), myView, SLOT(open()),
tr("Ctrl+O") );
In the example above, pressing Ctrl+O or selecting "Open" from the menu
activates the myView->open() function.
Some insert functions take a QIconSet parameter to specify the little
menu item icon. Note that you can always pass a QPixmap object instead.
The id 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.
The index specifies the position in the menu. The menu item is appended
at the end of the list if index is negative.
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 parentWidget() chain. The menu will
then install its accelerator object on that top-level widget. For all
other cases use an independent QAccel object.
Warning: Be careful when passing a literal 0 to insertItem() because
some C++ compilers choose the wrong overloaded function. Cast the 0 to
what you mean, e.g. (QObject*)0.
Warning: 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.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), connectItem(), QAccel,
and qnamespace.h.
Examples:
int QMenuData::insertItem ( const QIconSet & icon, const QString & text, const
QObject * receiver, const char * member, const QKeySequence & accel =
0, int id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with icon icon, text text, accelerator accel,
optional id id, and optional index position. The menu item is connected
it to the receiver's member slot. The icon will be displayed to the
left of the text in the item.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), connectItem(), QAccel,
and qnamespace.h.
int QMenuData::insertItem ( const QPixmap & pixmap, const QObject * receiver,
const char * member, const QKeySequence & accel = 0, int id = -1, int
index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with pixmap pixmap, accelerator accel, optional id
id, and optional index position. The menu item is connected it to the
receiver's member slot. The icon will be displayed to the left of the
text in the item.
To look best when being highlighted as a menu item, the pixmap should
provide a mask (see QPixmap::mask()).
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QIconSet & icon, const QPixmap & pixmap,
const QObject * receiver, const char * member, const QKeySequence &
accel = 0, int id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with icon icon, pixmap pixmap, accelerator accel,
optional id id, and optional index position. The icon will be displayed
to the left of the pixmap in the item. The item is connected to the
member slot in the receiver object.
To look best when being highlighted as a menu item, the pixmap should
provide a mask (see QPixmap::mask()).
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), connectItem(), QAccel,
and qnamespace.h.
int QMenuData::insertItem ( const QString & text, int id = -1, int index = -1
)
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with text text, optional id id, and optional index
position.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QIconSet & icon, const QString & text, int
id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with icon icon, text text, optional id id, and
optional index position. The icon will be displayed to the left of the
text in the item.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QString & text, QPopupMenu * popup, int id =
-1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with text text, submenu popup, optional id id, and
optional index position.
The popup 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.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QIconSet & icon, const QString & text,
QPopupMenu * popup, int id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with icon icon, text text, submenu popup, optional
id id, and optional index position. The icon will be displayed to the
left of the text in the item.
The popup 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.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QPixmap & pixmap, int id = -1, int index =
-1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with pixmap pixmap, optional id id, and optional
index position.
To look best when being highlighted as a menu item, the pixmap should
provide a mask (see QPixmap::mask()).
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QIconSet & icon, const QPixmap & pixmap, int
id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with icon icon, pixmap pixmap, optional id id, and
optional index position. The icon will be displayed to the left of the
pixmap in the item.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QPixmap & pixmap, QPopupMenu * popup, int id
= -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with pixmap pixmap, submenu popup, optional id id,
and optional index position.
The popup 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.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( const QIconSet & icon, const QPixmap & pixmap,
QPopupMenu * popup, int id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item with icon icon, pixmap pixmap submenu popup,
optional id id, and optional index position. The icon will be displayed
to the left of the pixmap in the item.
The popup 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.
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem(), changeItem(), setAccel(), and connectItem().
int QMenuData::insertItem ( QWidget * widget, int id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a menu item that consists of the widget widget with optional id
id, and optional index position.
Ownership of widget is transferred to the popup menu or to the menu
bar.
Theoretically, any widget can be inserted into a popup menu. In
practice, this only makes sense with certain widgets.
If a widget is not focus-enabled (see QWidget::isFocusEnabled()), 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 QLabel if you need a popup menu with a title.
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 ArrowUp and ArrowDown 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 QLineEdit, 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 QWidget::focusNextPrevChild().
Futhermore, if the embedded widget closes the menu when the user made a
selection, this can be done safely by calling:
if ( isVisible() &&
parentWidget() &&
parentWidget()->inherits("QPopupMenu") )
parentWidget()->close();
Returns the allocated menu identifier number (id if id >= 0).
See also removeItem().
int QMenuData::insertItem ( const QIconSet & icon, QCustomMenuItem * custom,
int id = -1, int index = -1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a custom menu item custom with an icon and with optional id id,
and optional index position.
This only works with popup menus. It is not supported for menu bars.
Ownership of custom is transferred to the popup menu.
If you want to connect a custom item to a slot, use connectItem().
Returns the allocated menu identifier number (id if id >= 0).
See also connectItem(), removeItem(), and QCustomMenuItem.
int QMenuData::insertItem ( QCustomMenuItem * custom, int id = -1, int index =
-1 )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Inserts a custom menu item custom with optional id id, and optional
index position.
This only works with popup menus. It is not supported for menu bars.
Ownership of custom is transferred to the popup menu.
If you want to connect a custom item to a slot, use connectItem().
Returns the allocated menu identifier number (id if id >= 0).
See also connectItem(), removeItem(), and QCustomMenuItem.
int QMenuData::insertSeparator ( int index = -1 )
Inserts a separator at position index, and returns the menu identifier
number allocated to it. The separator becomes the last menu item if
index is negative.
In a popup menu a separator is rendered as a horizontal line. In a
Motif 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).
Examples:
bool QMenuData::isItemActive ( int id ) const
Returns TRUE if the menu item with the id id is currently active;
otherwise returns FALSE.
bool QMenuData::isItemChecked ( int id ) const
Returns TRUE if the menu item with the id id has been checked;
otherwise returns FALSE.
See also setItemChecked().
Examples:
bool QMenuData::isItemEnabled ( int id ) const
Returns TRUE if the item with identifier id is enabled; otherwise
returns FALSE
See also setItemEnabled() and isItemVisible().
bool QMenuData::isItemVisible ( int id ) const
Returns TRUE if the menu item with the id id is visible; otherwise
returns FALSE.
See also setItemVisible().
int QMenuData::itemParameter ( int id ) const
Returns the parameter of the activation signal of item id.
If no parameter has been specified for this item with
setItemParameter(), the value defaults to id.
See also connectItem(), disconnectItem(), and setItemParameter().
void QMenuData::menuContentsChanged () [virtual protected]
Virtual function; notifies subclasses that one or more items have been
inserted or removed.
Reimplemented in QMenuBar.
void QMenuData::menuDelPopup ( QPopupMenu * ) [virtual protected]
Virtual function; notifies subclasses that a popup menu item has been
removed.
void QMenuData::menuInsPopup ( QPopupMenu * ) [virtual protected]
Virtual function; notifies subclasses that a popup menu item has been
inserted.
void QMenuData::menuStateChanged () [virtual protected]
Virtual function; notifies subclasses that one or more items have
changed state (enabled/disabled or checked/unchecked).
Reimplemented in QMenuBar.
QPixmap * QMenuData::pixmap ( int id ) const
Returns the pixmap that has been set for menu item id, or 0 if no
pixmap has been set.
See also changeItem(), text(), and iconSet().
void QMenuData::removeItem ( int id )
Removes the menu item that has the identifier id.
See also removeItemAt() and clear().
Example: chart/chartform.cpp.
void QMenuData::removeItemAt ( int index )
Removes the menu item at position index.
See also removeItem() and clear().
void QMenuData::setAccel ( const QKeySequence & key, int id )
Sets the accelerator key for the menu item id to key.
An accelerator key consists of a key code and a combination of the
modifiers SHIFT, CTRL, ALT or UNICODE_ACCEL (OR'ed or added). The
header file qnamespace.h contains a list of key codes.
Defining an accelerator key produces a text that is added to the menu
item; for instance, CTRL + Key_O produces "Ctrl+O". The text is
formatted differently for different platforms.
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 parentWidget() chain. The menu will
then install its accelerator object on that top-level widget. For all
other cases use an independent QAccel object.
Example:
QMenuBar *mainMenu = new QMenuBar;
QPopupMenu *fileMenu = new QPopupMenu; // file sub menu
fileMenu->insertItem( "Open Document", 67 ); // add "Open" item
fileMenu->setAccel( CTRL + Key_O, 67 ); // Ctrl+O to open
fileMenu->insertItem( "Quit", 69 ); // add "Quit" item
fileMenu->setAccel( CTRL + ALT + Key_Delete, 69 ); // add Alt+Del to quit
mainMenu->insertItem( "File", fileMenu ); // add the file menu
If you need to translate accelerators, use tr() with a string:
fileMenu->setAccel( tr("Ctrl+O"), 67 );
You can also specify the accelerator in the insertItem() function. You
may prefer to use QAction to associate accelerators with menu items.
See also accel(), insertItem(), QAccel, and QAction.
Example: menu/menu.cpp.
void QMenuData::setId ( int index, int id ) [virtual]
Sets the menu identifier of the item at index to id.
If index is out of range, the operation is ignored.
See also idAt().
void QMenuData::setItemChecked ( int id, bool check )
If check is TRUE, checks the menu item with id id; otherwise unchecks
the menu item with id id. Calls QPopupMenu::setCheckable( TRUE ) if
necessary.
See also isItemChecked().
Examples:
void QMenuData::setItemEnabled ( int id, bool enable )
If enable is TRUE, enables the menu item with identifier id; otherwise
disables the menu item with identifier id.
See also isItemEnabled().
Examples:
bool QMenuData::setItemParameter ( int id, int param )
Sets the parameter of the activation signal of item id to param.
If any receiver takes an integer parameter, this value is passed.
See also connectItem(), disconnectItem(), and itemParameter().
Example: mdi/application.cpp.
void QMenuData::setItemVisible ( int id, bool visible )
If visible is TRUE, shows the menu item with id id; otherwise hides the
menu item with id id.
See also isItemVisible() and isItemEnabled().
void QMenuData::setWhatsThis ( int id, const QString & text )
Sets text as What's This help for the menu item with identifier id.
See also whatsThis().
Examples:
QString QMenuData::text ( int id ) const
Returns the text that has been set for menu item id, or QString::null
if no text has been set.
See also changeItem(), pixmap(), and iconSet().
Examples:
void QMenuData::updateItem ( int id ) [virtual]
Virtual function; notifies subclasses about an item with id that has
been changed.
Reimplemented in QPopupMenu.
QString QMenuData::whatsThis ( int id ) const
Returns the What's This help text for the item with identifier id or
QString::null if no text has yet been defined.
See also setWhatsThis().
SEE ALSO
http://doc.trolltech.com/qmenudata.html
http://www.trolltech.com/faq/tech.html
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Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
license file included in the distribution for a complete license
statement.
AUTHOR
Generated automatically from the source code.
BUGS
If you find a bug in Qt, please report it as described in
http://doc.trolltech.com/bughowto.html. Good bug reports help us to
help you. Thank you.
The definitive Qt documentation is provided in HTML format; it is
located at $QTDIR/doc/html and can be read using Qt Assistant or with a
web browser. This man page is provided as a convenience for those users
who prefer man pages, although this format is not officially supported
by Trolltech.
If you find errors in this manual page, please report them to qt-
bugs@trolltech.com. Please include the name of the manual page
(qmenudata.3qt) and the Qt version (3.3.8).
Trolltech AS 2 February 2007 QMenuData(3qt)