QTabWidget(3qt)QTabWidget(3qt)NAME
QTabWidget - Stack of tabbed widgets
#include <qtabwidget.h>
Inherits QWidget.
Public Members
QTabWidget ( QWidget * parent, const char * name, WFlags f
)
QTabWidget ( QWidget * parent=0, const char * name=0 )
~QTabWidget ()
void addTab ( QWidget *, const QString & )
void addTab ( QWidget * child, const QIconSet & iconset,
const QString & label )
void addTab ( QWidget *, QTab * )
void insertTab ( QWidget *, const QString &, int index =
-1 )
void insertTab ( QWidget * child, const QIconSet &
iconset, const QString & label, int index = -1 )
void insertTab ( QWidget *, QTab *, int index = -1 )
void changeTab ( QWidget *, const QString & )
void changeTab ( QWidget * child, const QIconSet &
iconset, const QString & label )
bool isTabEnabled ( QWidget * ) const
void setTabEnabled ( QWidget *, bool )
void showPage ( QWidget * )
void removePage ( QWidget * )
QString tabLabel ( QWidget * )
QWidget* currentPage () const
int currentPageIndex () const
void setCurrentPage ( int )
virtual QSize minimumSizeHint () const
enum TabPosition { Top, Bottom }
TabPosition tabPosition () const
void setTabPosition ( TabPosition )
enum TabShape { Rounded, Triangular }
TabShape tabShape () const
void setTabShape ( TabShape s )
int margin () const
void setMargin ( int )
Signals
void currentChanged ( QWidget * )
void selected ( const QString & )
Protected Members
void setTabBar ( QTabBar * )
QTabBar* tabBar () const
Properties
Type Name READ WRITE Options
Trolltech AS 13 June 2001 1
QTabWidget(3qt)QTabWidget(3qt)------------------------------------------------------------------------
TabPosition tabPosition tabPosition setTabPosition
TabShape tabShape tabShape setTabShape
int margin margin setMargin
int currentPage currentPageIndex setCurrentPage
DESCRIPTION
The QTabWidget class provides a stack of tabbed widgets.
A tabbed widget is one in which several "pages" are
available, and the user selects which page to see and use
by clicking on its tab, or by pressing the indicated
Alt-(letter) key combination.
QTabWidget does not provide more than one row of tabs, and
does not provide tabs along the sides or bottom of the
pages.
The normal way to use QTabWidget is to do the following in
the constructor:
1 Create a QTabWidget.
2 Create a QWidget for each of the pages in the tab
dialog, insert children into it, set up geometry
management for it, and use addTab() to set up a tab
and keyboard accelerator for it.
3 Connect to the signals and slots.
If you don't call addTab(), the page you have created will
not be visible. Please don't confuse the object name you
supply to the QWidget constructor and the tab label you
supply to addTab(): addTab() takes a name which indicates
an accelerator and is meaningful and descriptive to the
user, while the widget name is used primarily for
debugging.
A signal currentChanged() is emitted when the user selects
some page.
Each tab is either enabled or disabled at any given time.
If a tab is enabled, the tab text is drawn in black and
the user can select that tab. If it is disabled, the tab
is drawn in a different way and the user can not select
that tab. Note that even though a tab is disabled, the
page can still be visible, for example if all of the tabs
happen to be disabled.
While tab widgets can be a very good way to split up a
complex dialog, it's also very easy to make a royal mess
out of it. See QTabDialog for some design hints.
Trolltech AS 13 June 2001 2
QTabWidget(3qt)QTabWidget(3qt)
Most of the functionality in QTabWidget is provided by a
QTabBar (at the top, providing the tabs) and a
QWidgetStack (most of the area, organizing the individual
pages).
[Image Omitted]
[Image Omitted]
See also QTabDialog.
Member Type Documentation
QTabWidget::TabPosition
This enum type defines where QTabWidget can draw the tab
row:
Top - above the pages
Bottom - below the pages
QTabWidget::TabShape
This enum type defines the shape of the tabs:
Rounded - rounded look (normal)
Triangular - triangular look (very unusual, included for
completeness)
MEMBER FUNCTION DOCUMENTATIONQTabWidget::QTabWidget ( QWidget * parent, const char * name,
WFlags f )
Constructs a tabbed widget with parent parent, name name
and widget flags f.
QTabWidget::QTabWidget ( QWidget * parent=0, const char * name=0
)
This is an overloaded member function, provided for
convenience. It differs from the above function only in
what argument(s) it accepts.
QTabWidget::~QTabWidget ()
Destructs the tab widget.
void QTabWidget::addTab ( QWidget * child, QTab * tab )
This is a lower-level method for adding tabs, similar to
the other addTab() method. It is useful if you are using
setTabBar() to set a QTabBar subclass with an overridden
QTabBar::paint() routine for a subclass of QTab.
void QTabWidget::addTab ( QWidget * child, const QIconSet &
iconset, const QString & label )
Adds another tab and page to the tab view.
Trolltech AS 13 June 2001 3
QTabWidget(3qt)QTabWidget(3qt)
This function is the same as addTab() but with an
additional iconset.
void QTabWidget::addTab ( QWidget * child, const QString & label
)
Adds another tab and page to the tab view.
The tab will be labelled label and child constitutes the
new page. Note the difference between the widget name
(which you supply to widget constructors and to e.g.
setTabEnabled()) and the tab label: The name is internal
to the program and invariant, while the label is shown on
screen and may vary according to e.g. language.
label is written in the QButton style, where &P makes Qt
create an accelerator key on Alt-P for this page. For
example:
td->addTab( graphicsPane, "&Graphics" );
td->addTab( soundPane, "&Sound" );
If the user presses Alt-S the sound page of the tab dialog
is shown, if the user presses Alt-P the graphics page is
shown.
If you call addTab() after show(), the screen will flicker
and the user will be confused.
void QTabWidget::changeTab ( QWidget * w, const QIconSet &
iconset, const QString & label )
Defines a new iconset and a new label for the tab of page
w
void QTabWidget::changeTab ( QWidget * w, const QString & label )
Defines a new label for the tab of page w
void QTabWidget::currentChanged ( QWidget * ) [signal]
This signal is emitted whenever the current page changes.
See also currentPage(), showPage() and tabLabel().
QWidget * QTabWidget::currentPage () const
Returns a pointer to the page currently being displayed by
the tab dialog. The tab dialog does its best to make sure
that this value is never 0, but if you try hard enough it
can be.
int QTabWidget::currentPageIndex () const
Returns the ID of the current page.
bool QTabWidget::eventFilter ( QObject * o, QEvent * e ) [virtual
protected]
Reimplemented for internal reasons; the API is not
affected.
Trolltech AS 13 June 2001 4
QTabWidget(3qt)QTabWidget(3qt)
Reimplemented from QObject.
void QTabWidget::insertTab ( QWidget * child, QTab * tab, int
index = -1 )
This is a lower-level method for inserting tabs, similar
to the other insertTab() method. It is useful if you are
using setTabBar() to set a QTabBar subclass with an
overridden QTabBar::paint() routine for a subclass of
QTab.
void QTabWidget::insertTab ( QWidget * child, const QIconSet &
iconset, const QString & label, int index = -1 )
Inserts another tab and page to the tab view.
This function is the same as insertTab() but with an
additional iconset.
void QTabWidget::insertTab ( QWidget * child, const QString &
label, int index = -1 )
Inserts another tab and page to the tab view.
The tab will be labelled label and child constitutes the
new page. Note the difference between the widget name
(which you supply to widget constructors and to e.g.
setTabEnabled()) and the tab label: The name is internal
to the program and invariant, while the label is shown on
screen and may vary according to e.g. language.
label is written in the QButton style, where &P makes Qt
create an accelerator key on Alt-P for this page. For
example:
td->insertTab( graphicsPane, "&Graphics" );
td->insertTab( soundPane, "&Sound" );
If index is not specified, the tab is simply added.
Otherwise it's inserted at the specified position.
If the user presses Alt-S the sound page of the tab dialog
is shown, if the user presses Alt-P the graphics page is
shown.
If you call insertTab() after show(), the screen will
flicker and the user will be confused.
bool QTabWidget::isTabEnabled ( QWidget * w ) const
Returns TRUE if the page w is enabled, and false if it is
disabled.
See also setTabEnabled() and QWidget::isEnabled().
int QTabWidget::margin () const
Returns the width of the margin. The margin is the
distance between the innermost pixel of the frame and the
Trolltech AS 13 June 2001 5
QTabWidget(3qt)QTabWidget(3qt)
outermost pixel of the pages.
See also setMargin().
QSize QTabWidget::minimumSizeHint () const [virtual]
Returns a suitable minimum size for the tab widget.
Reimplemented from QWidget.
void QTabWidget::removePage ( QWidget * w )
Removes page w from this stack of widgets. Does not delete
w.
See also showPage() and QWidgetStack::removeWidget().
void QTabWidget::resizeEvent ( QResizeEvent * ) [virtual
protected]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
void QTabWidget::setCurrentPage ( int id )
Sets the page with index id as current page.
Note that id is not the index that is specified when you
insert a tab.
void QTabWidget::setMargin ( int w )
Sets the width of the margin to w.
See also margin().
void QTabWidget::setTabBar ( QTabBar * tb ) [protected]
Replaces the QTabBar heading the dialog by the given tab
bar. Note that this must be called before any tabs have
been added, or the behavior is undefined.
See also tabBar().
void QTabWidget::setTabEnabled ( QWidget * w, bool enable )
Enables/disables page w according to the value of enable,
and redraws the page's tab appropriately.
QTabWidget uses QWidget::setEnabled() internally, rather
than keep a separate flag.
Note that even a disabled tab/page may be visible. If the
page is visible already, QTabWidget will not hide it, and
if all the pages are disabled, QTabWidget will show one of
them.
See also isTabEnabled() and QWidget::setEnabled().
Trolltech AS 13 June 2001 6
QTabWidget(3qt)QTabWidget(3qt)void QTabWidget::setTabPosition ( TabPosition pos )
Sets the position of the tabs to pos
Possible values are QTabWidget::Top and
QTabWidget::Bottom.
See also tabPosition().
void QTabWidget::setTabShape ( TabShape s )
Sets the shape of the tabs to s.
void QTabWidget::showEvent ( QShowEvent * ) [virtual protected]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
void QTabWidget::showPage ( QWidget * w )
Ensures that w is shown. This is useful mainly for
accelerators.
Warning: Used carelessly, this function can easily
surprise or confuse the user.
See also QTabBar::setCurrentTab().
QSize QTabWidget::sizeHint () const [virtual]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
QSizePolicy QTabWidget::sizePolicy () const [virtual]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
void QTabWidget::styleChange ( QStyle & old ) [virtual protected]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
QTabBar* QTabWidget::tabBar () const [protected]
Returns the currently set QTabBar.
See also setTabBar().
QString QTabWidget::tabLabel ( QWidget * w )
Returns the text in the tab for page w.
QTabWidget::TabPosition QTabWidget::tabPosition() const
Returns the position of the tabs.
Trolltech AS 13 June 2001 7
QTabWidget(3qt)QTabWidget(3qt)
Possible values are QTabWidget::Top and
QTabWidget::Bottom.
See also setTabPosition().
QTabWidget::TabShape QTabWidget::tabShape() const
Returns the shape of the tabs.
See also setTabShape().
void QTabWidget::updateMask () [virtual protected]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
SEE ALSO
http://doc.trolltech.com/qtabwidget.html
http://www.trolltech.com/faq/tech.html
COPYRIGHT
Copyright 1992-2001 Trolltech AS,
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
make our job much simpler. Thank you.
In case of content or formattting problems with this
manual page, please report them to qt-bugs@trolltech.com.
Please include the name of the manual page
(qtabwidget.3qt) and the Qt version (2.3.1).
Trolltech AS 13 June 2001 8
