QStatusBar(3qt)QStatusBar(3qt)NAMEQStatusBar - Horizontal bar suitable for presenting status
information
#include <qstatusbar.h>
Inherits QWidget.
Public Members
QStatusBar ( QWidget * parent = 0, const char * name = 0 )
~QStatusBar ()
void addWidget ( QWidget *, int stretch = 0, bool = FALSE
)
void removeWidget ( QWidget * )
void setSizeGripEnabled ( bool )
bool isSizeGripEnabled () const
Public Slots
void message ( const QString & )
void message ( const QString &, int )
void clear ()
Protected Members
virtual void paintEvent ( QPaintEvent * )
void reformat ()
void hideOrShow ()
Properties
l l l l l
- - - - -
l l l l l.
Type Name READ WRITE Options
bool sizeGripEnabled isSizeGripEnabled setSizeGripEnabled
DESCRIPTION
The QStatusBar class provides a horizontal bar suitable
for presenting status information.
Each status indicator falls into one of three categories:
Temporary - occupies most of the status bar briefly. Used
e.g. for explaining tool tip texts or menu entries.
Normal - occupies part of the status bar and may be hidden
by temporary messages. Used e.g. for displaying the page
and line number in a word processor.
Permanent - is never hidden. Used for important mode
indications. Some applications put a Caps Lock indicator
in the status bar.
QStatusBar lets you display all three types of indicator.
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QStatusBar(3qt)QStatusBar(3qt)
To display a temporary message, call message(), perhaps by
connecting a suitable signal to it. To remove a temporary
message, call clear(). There are two variants of
message(), one which displays the message until the next
clear() or mesage(), and one which also has a time limit:
connect( loader, SIGNAL(progressMessage(const QString&)),
statusBar(), SLOT(message(const QString&)) );
statusBar()->message("Loading..."); // Initial message
loader.loadStuff(); // Emits progress messages
statusBar()->message("Done.", 2000); // Final message for 2 seconds
Normal and permanent messages are displayed by creating a
small widget then adding it to the status bar with
addWidget(). Widgets like QLabel, QProgressBar, or even
QToolButton are useful for adding to status bars.
removeWidget() is used to remove widgets.
statusBar()->addWidget(new MyReadWriteIndication(statusBar()));
By default, QStatusBar provides a QSizeGrip in the lower-
right corner. You can disable this with
setSizeGripEnabled(FALSE);
[Image Omitted]
[Image Omitted]
See also QToolBar, QMainWindow, QLabel and GUI Design
Handbook: Status Bar.
MEMBER FUNCTION DOCUMENTATIONQStatusBar::QStatusBar ( QWidget * parent = 0, const char * name
= 0 )
Constructs a status bar with just a size grip.
See also setSizeGripEnabled().
QStatusBar::~QStatusBar ()
Destructs the status bar and frees any allocated
resources.
void QStatusBar::addWidget ( QWidget * widget, int stretch = 0,
bool permanent = FALSE )
Adds widget to this status bar.
widget is permanently visible if permanent is TRUE, and is
obscured by temporary messages if permanent is FALSE. The
default is FALSE.
stretch is used to compute a suitable size for widget as
the status bar grows and shrinks. The default of 0 uses a
minimum of space.
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QStatusBar(3qt)QStatusBar(3qt)
If permanent is TRUE, widget is located at the far right
of the status bar. If permanent is FALSE (the default)
widget is located just to the left of the first permanent
widget.
This function may cause some flicker.
See also removeWidget().
void QStatusBar::clear () [slot]
Removes any temporary message being shown.
See also message().
bool QStatusBar::event ( QEvent * e ) [virtual protected]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QObject.
void QStatusBar::hideOrShow () [protected]
Ensures that the right widgets are visible. Used by
message() and clear().
bool QStatusBar::isSizeGripEnabled () const
Returns whether the QSizeGrip in the bottom right of the
status bar is enabled.
See also setSizeGripEnabled().
void QStatusBar::message ( const QString & message ) [slot]
Hide the normal status indicators and display message,
until clear() or another message() is called.
See also clear().
void QStatusBar::message ( const QString & message, int ms )
[slot]
Hide the normal status indications and display message for
ms milli-seconds, or until clear() or another message() is
called, whichever is first.
void QStatusBar::paintEvent ( QPaintEvent * ) [virtual protected]
Shows the temporary message, if appropriate.
Reimplemented from QWidget.
void QStatusBar::reformat () [protected]
Changes the status bar's appearance to account for item
changes. Special subclasses may need this, but normally
geometry management will take care of any necessary
rearrangements.
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QStatusBar(3qt)QStatusBar(3qt)void QStatusBar::removeWidget ( QWidget * widget )
Removes widget from the status bar.
This function may cause some flicker.
Note that widget is not deleted.
See also addWidget().
void QStatusBar::resizeEvent ( QResizeEvent * e ) [virtual
protected]
Reimplemented for internal reasons; the API is not
affected.
Reimplemented from QWidget.
void QStatusBar::setSizeGripEnabled ( bool enabled )
Enables or disables the QSizeGrip in the bottom right of
the status bar. By default, the size grip is enabled.
See also isSizeGripEnabled().
SEE ALSO
http://doc.trolltech.com/qstatusbar.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
(qstatusbar.3qt) and the Qt version (2.3.1).
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