QgsStatusBar Class Reference

A proxy widget for QStatusBar. More...

#include <qgsstatusbar.h>

Inheritance diagram for QgsStatusBar:

Public Types
enum	Anchor { AnchorLeft = 0, AnchorRight }
	Placement anchor for widgets. More...

Public Slots
void	clearMessage ()
	Removes any temporary message being shown. More...
void	setParentStatusBar (QStatusBar *statusBar)
	Sets the parent status bar. More...
void	showMessage (const QString &message, int timeout=0)
	Displays the given message for the specified number of milli-seconds (timeout). More...

Public Member Functions
	QgsStatusBar (QWidget *parent=nullptr)
	Constructor for QgsStatusBar. More...
void	addPermanentWidget (QWidget *widget, int stretch=0, Anchor anchor=AnchorRight)
	Adds the given widget permanently to this status bar, reparenting the widget if it isn't already a child of this object. More...
QString	currentMessage () const
	Returns the current message shown in the status bar. More...
void	removeWidget (QWidget *widget)
	Removes a widget from the status bar. More...

Protected Member Functions
void	changeEvent (QEvent *event) override

Detailed Description

A proxy widget for QStatusBar.

Unlike QStatusBar, QgsStatusBar allows finer control of widget placement, including the option to locate permanent widgets on the left side of the bar.

QgsStatusBar is designed to be embedded into an existing window's QStatusBar, as a permanent widget. This allows reuse of the special QStatusBar handling for resize grips and other platform specific status bar tweaks.

Instead of adding child widgets and showing messages directly in the window's status bar, these widgets (and messages) should instead be added into the embedded QgsStatusBar.

Since

QGIS 3.0

Definition at line 46 of file qgsstatusbar.h.

Member Enumeration Documentation

enum QgsStatusBar::Anchor

Placement anchor for widgets.

Enumerator
AnchorLeft	Anchor widget to left of status bar.
AnchorRight	Anchor widget to right of status bar.

Definition at line 53 of file qgsstatusbar.h.

Constructor & Destructor Documentation

QgsStatusBar::QgsStatusBar

(

QWidget *

parent = nullptr

)

Constructor for QgsStatusBar.

Definition at line 26 of file qgsstatusbar.cpp.

Member Function Documentation

void QgsStatusBar::addPermanentWidget	(	QWidget *	widget,
		int	stretch = 0,
		Anchor	anchor = AnchorRight
	)

Adds the given widget permanently to this status bar, reparenting the widget if it isn't already a child of this object.

The stretch parameter is used to compute a suitable size for the given widget as the status bar grows and shrinks. The default stretch factor is 0, i.e giving the widget a minimum of space.

The anchor parameter controls which side of the status bar the widget should be anchored to.

Definition at line 46 of file qgsstatusbar.cpp.

void QgsStatusBar::changeEvent ( QEvent *  event )

overrideprotected

Definition at line 106 of file qgsstatusbar.cpp.

void QgsStatusBar::clearMessage ( )

slot

Removes any temporary message being shown.

See also

showMessage()

Definition at line 90 of file qgsstatusbar.cpp.

QString QgsStatusBar::currentMessage

(

)

const

Returns the current message shown in the status bar.

See also

showMessage()

Definition at line 65 of file qgsstatusbar.cpp.

void QgsStatusBar::removeWidget

(

QWidget *

widget

)

Removes a widget from the status bar.

Ownership of the widget remains unchanged, and the widget itself is not deleted.

Definition at line 60 of file qgsstatusbar.cpp.

void QgsStatusBar::setParentStatusBar ( QStatusBar *  statusBar )

slot

Sets the parent status bar.

Messages that are shown on the parent status bar will be intercepted and shown on this status bar too.

Since

QGIS 3.8

Definition at line 95 of file qgsstatusbar.cpp.

void QgsStatusBar::showMessage ( const QString &  message, int  timeout = 0  )

slot

Displays the given message for the specified number of milli-seconds (timeout).

If timeout is 0 (default), the message remains displayed until the clearMessage() slot is called or until the showMessage() slot is called again to change the message.

See also

clearMessage()

currentMessage()

Definition at line 70 of file qgsstatusbar.cpp.

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The documentation for this class was generated from the following files:

• /build/qgis-3.4.15+24xenial/src/gui/qgsstatusbar.h
• /build/qgis-3.4.15+24xenial/src/gui/qgsstatusbar.cpp