The QStatusBar class provides a horizontal area for presenting status information.
More...
|
| QStatusBar (QWidget *parent=nullptr) |
|
virtual | ~QStatusBar () |
|
void | addPermanentWidget (QWidget *widget, int stretch=0) |
|
void | addWidget (QWidget *widget, int stretch=0) |
|
QString | currentMessage () const |
|
int | insertPermanentWidget (int index, QWidget *widget, int stretch=0) |
|
int | insertWidget (int index, QWidget *widget, int stretch=0) |
|
bool | isSizeGripEnabled () const |
|
void | removeWidget (QWidget *widget) |
|
void | setSizeGripEnabled (bool enabled) |
|
| QWidget (QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag) |
|
| ~QWidget () |
|
bool | acceptDrops () const |
|
QString | accessibleDescription () const |
|
QString | accessibleName () const |
|
QList< QAction * > | actions () const |
|
void | activateWindow () |
|
void | addAction (QAction *action) |
|
void | addActions (const QList< QAction * > &actions) |
|
void | adjustSize () |
|
bool | autoFillBackground () const |
|
QPalette::ColorRole | backgroundRole () const |
|
QBackingStore * | backingStore () const |
|
QSize | baseSize () const |
|
QWidget * | childAt (const QPoint &position) const |
|
QWidget * | childAt (int x, int y) const |
|
QRect | childrenRect () const |
|
QRegion | childrenRegion () const |
|
void | clearFocus () |
|
void | clearMask () |
|
QMargins | contentsMargins () const |
|
QRect | contentsRect () const |
|
Qt::ContextMenuPolicy | contextMenuPolicy () const |
|
QCursor | cursor () const |
|
WId | effectiveWinId () const |
|
void | ensurePolished () const |
|
Qt::FocusPolicy | focusPolicy () const |
|
QWidget * | focusProxy () const |
|
QWidget * | focusWidget () const |
|
const QFont & | font () const |
|
QFontInfo | fontInfo () const |
|
QFontMetrics | fontMetrics () const |
|
QPalette::ColorRole | foregroundRole () const |
|
QRect | frameGeometry () const |
|
QSize | frameSize () const |
|
const QRect & | geometry () const |
|
void | getContentsMargins (int *left, int *top, int *right, int *bottom) const |
|
QPixmap | grab (const QRect &rectangle=QRect (QPoint (0, 0), QSize (-1,-1))) |
|
void | grabGesture (Qt::GestureType gestureType, Qt::GestureFlags flags=Qt::GestureFlags ()) |
|
void | grabKeyboard () |
|
void | grabMouse () |
|
void | grabMouse (const QCursor &cursor) |
|
int | grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut) |
|
QGraphicsEffect * | graphicsEffect () const |
|
QGraphicsProxyWidget * | graphicsProxyWidget () const |
|
bool | hasEditFocus () const |
|
bool | hasFocus () const |
|
virtual bool | hasHeightForWidth () const |
|
bool | hasMouseTracking () const |
|
int | height () const |
|
virtual int | heightForWidth (int width) const |
|
Qt::InputMethodHints | inputMethodHints () const |
|
virtual QVariant | inputMethodQuery (Qt::InputMethodQuery query) const |
|
void | insertAction (QAction *before, QAction *action) |
|
void | insertActions (QAction *before, QList< QAction * > actions) |
|
bool | isActiveWindow () const |
|
bool | isAncestorOf (const QWidget *child) const |
|
bool | isEnabled () const |
|
bool | isEnabledTo (const QWidget *parent) const |
|
bool | isEnabledToTLW () const |
|
bool | isFullScreen () const |
|
bool | isHidden () const |
|
bool | isMaximized () const |
|
bool | isMinimized () const |
|
bool | isModal () const |
|
bool | isTopLevel () const |
|
bool | isVisible () const |
|
bool | isVisibleTo (const QWidget *parent) const |
|
bool | isWindow () const |
|
bool | isWindowModified () const |
|
QLayout * | layout () const |
|
Qt::LayoutDirection | layoutDirection () const |
|
QLocale | locale () const |
|
QPoint | mapFrom (const QWidget *parent, const QPoint &pos) const |
|
QPoint | mapFromGlobal (const QPoint &pos) const |
|
QPoint | mapFromParent (const QPoint &pos) const |
|
QPoint | mapTo (const QWidget *parent, const QPoint &pos) const |
|
QPoint | mapToGlobal (const QPoint &pos) const |
|
QPoint | mapToParent (const QPoint &pos) const |
|
QRegion | mask () const |
|
int | maximumHeight () const |
|
QSize | maximumSize () const |
|
int | maximumWidth () const |
|
int | minimumHeight () const |
|
QSize | minimumSize () const |
|
virtual QSize | minimumSizeHint () const |
|
int | minimumWidth () const |
|
void | move (const QPoint &point) |
|
void | move (int x, int y) |
|
QWidget * | nativeParentWidget () const |
|
QWidget * | nextInFocusChain () const |
|
QRect | normalGeometry () const |
|
void | overrideWindowFlags (Qt::WindowFlags flags) |
|
QPaintEngine * | paintEngine () const override |
|
const QPalette & | palette () const |
|
QWidget * | parentWidget () const |
|
QPoint | pos () const |
|
QWidget * | previousInFocusChain () const |
|
QRect | rect () const |
|
void | releaseKeyboard () |
|
void | releaseMouse () |
|
void | releaseShortcut (int id) |
|
void | removeAction (QAction *action) |
|
void | render (QPaintDevice *target, const QPoint &targetOffset=QPoint (), const QRegion &sourceRegion=QRegion (), RenderFlags renderFlags=RenderFlags (DrawWindowBackground|DrawChildren)) |
|
void | render (QPainter *painter, const QPoint &targetOffset=QPoint (), const QRegion &sourceRegion=QRegion (), RenderFlags renderFlags=RenderFlags (DrawWindowBackground|DrawChildren)) |
|
void | repaint (const QRect &rect) |
|
void | repaint (const QRegion ®ion) |
|
void | repaint (int x, int y, int w, int h) |
|
void | resize (const QSize &size) |
|
void | resize (int w, int h) |
|
bool | restoreGeometry (const QByteArray &geometry) |
|
QByteArray | saveGeometry () const |
|
void | scroll (int dx, int dy) |
|
void | scroll (int dx, int dy, const QRect &rect) |
|
void | setAcceptDrops (bool on) |
|
void | setAccessibleDescription (const QString &description) |
|
void | setAccessibleName (const QString &name) |
|
void | setAttribute (Qt::WidgetAttribute attribute, bool enable=true) |
|
void | setAutoFillBackground (bool enable) |
|
void | setBackgroundRole (QPalette::ColorRole role) |
|
void | setBaseSize (const QSize &size) |
|
void | setBaseSize (int basew, int baseh) |
|
void | setContentsMargins (const QMargins &margins) |
|
void | setContentsMargins (int left, int top, int right, int bottom) |
|
void | setContextMenuPolicy (Qt::ContextMenuPolicy policy) |
|
void | setCursor (const QCursor &cursor) |
|
void | setEditFocus (bool enable) |
|
void | setFixedHeight (int h) |
|
void | setFixedSize (const QSize &size) |
|
void | setFixedSize (int w, int h) |
|
void | setFixedWidth (int w) |
|
void | setFocus (Qt::FocusReason reason) |
|
void | setFocusPolicy (Qt::FocusPolicy policy) |
|
void | setFocusProxy (QWidget *widget) |
|
void | setFont (const QFont &font) |
|
void | setForegroundRole (QPalette::ColorRole role) |
|
void | setGeometry (const QRect &rect) |
|
void | setGeometry (int x, int y, int w, int h) |
|
void | setGraphicsEffect (QGraphicsEffect *effect) |
|
void | setInputMethodHints (Qt::InputMethodHints hints) |
|
void | setLayout (QLayout *layout) |
|
void | setLayoutDirection (Qt::LayoutDirection direction) |
|
void | setLocale (const QLocale &locale) |
|
void | setMask (const QBitmap &bitmap) |
|
void | setMask (const QRegion ®ion) |
|
void | setMaximumHeight (int maxh) |
|
void | setMaximumSize (const QSize &size) |
|
void | setMaximumSize (int maxw, int maxh) |
|
void | setMaximumWidth (int maxw) |
|
void | setMinimumHeight (int minh) |
|
void | setMinimumSize (const QSize &size) |
|
void | setMinimumSize (int minw, int minh) |
|
void | setMinimumWidth (int minw) |
|
void | setMouseTracking (bool enable) |
|
void | setPalette (const QPalette &palette) |
|
void | setParent (QWidget *parent) |
|
void | setParent (QWidget *parent, Qt::WindowFlags flags) |
|
void | setShortcutAutoRepeat (int id, bool enable=true) |
|
void | setShortcutEnabled (int id, bool enable=true) |
|
void | setSizeIncrement (const QSize &size) |
|
void | setSizeIncrement (int w, int h) |
|
void | setSizePolicy (QSizePolicy policy) |
|
void | setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical) |
|
void | setStatusTip (const QString &data) |
|
void | setStyle (QStyle *style) |
|
void | setToolTip (const QString &data) |
|
void | setToolTipDuration (int msec) |
|
void | setUpdatesEnabled (bool enable) |
|
void | setWhatsThis (const QString &str) |
|
void | setWindowFilePath (const QString &filePath) |
|
void | setWindowFlags (Qt::WindowFlags flags) |
|
void | setWindowIcon (const QIcon &icon) |
|
void | setWindowModality (Qt::WindowModality windowModality) |
|
void | setWindowOpacity (qreal level) |
|
void | setWindowRole (const QString &role) |
|
void | setWindowState (Qt::WindowStates windowState) |
|
QSize | size () const |
|
virtual QSize | sizeHint () const |
|
QSize | sizeIncrement () const |
|
QSizePolicy | sizePolicy () const |
|
void | stackUnder (QWidget *widget) |
|
QString | statusTip () const |
|
QStyle * | style () const |
|
QString | styleSheet () const |
|
bool | testAttribute (Qt::WidgetAttribute attribute) const |
|
QString | toolTip () const |
|
int | toolTipDuration () const |
|
QWidget * | topLevelWidget () const |
|
bool | underMouse () const |
|
void | ungrabGesture (Qt::GestureType gestureType) |
|
void | unsetCursor () |
|
void | unsetLayoutDirection () |
|
void | unsetLocale () |
|
void | update (const QRect &rect) |
|
void | update (const QRegion ®ion) |
|
void | update (int x, int y, int w, int h) |
|
void | updateGeometry () |
|
bool | updatesEnabled () const |
|
QRegion | visibleRegion () const |
|
QString | whatsThis () const |
|
int | width () const |
|
QWidget * | window () const |
|
QString | windowFilePath () const |
|
Qt::WindowFlags | windowFlags () const |
|
QWindow * | windowHandle () const |
|
QIcon | windowIcon () const |
|
Qt::WindowModality | windowModality () const |
|
qreal | windowOpacity () const |
|
QString | windowRole () const |
|
Qt::WindowStates | windowState () const |
|
QString | windowTitle () const |
|
Qt::WindowType | windowType () const |
|
WId | winId () const |
|
int | x () const |
|
int | y () const |
|
| QObject (QObject *parent=nullptr) |
|
| ~QObject () |
|
bool | blockSignals (bool block) |
|
const QList< QObject * > & | children () const |
|
bool | connect (const QObject *sender, const QString &signalMethod, const QString &location, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
|
bool | connect (const QObject *sender, const QString &signalMethod, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
|
bool | disconnect (const QObject *receiver, const QString &slotMethod=QString ()) const |
|
bool | disconnect (const QString &signalMethod, const QString &location, const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const |
|
bool | disconnect (const QString &signalMethod=QString (), const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const |
|
void | dumpObjectInfo () |
|
void | dumpObjectTree () |
|
QList< QString > | dynamicPropertyNames () const |
|
virtual bool | event (QEvent *event) |
|
virtual bool | eventFilter (QObject *watched, QEvent *event) |
|
template<typename T > |
T | findChild (const QString &childName=QString ()) const |
|
template<class T > |
QList< T > | findChildren (const QRegularExpression ®Exp, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
|
template<class T > |
QList< T > | findChildren (const QString &childName=QString (), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
|
bool | inherits (const QString &className) const |
|
void | installEventFilter (QObject *filterObj) |
|
bool | isWidgetType () const |
|
bool | isWindowType () const |
|
void | killTimer (int id) |
|
const QMetaObject * | metaObject () const |
|
void | moveToThread (QThread *targetThread) |
|
QString | objectName () const |
|
QObject * | parent () const |
|
template<class T = QVariant> |
T | property (const QString &name) const |
|
void | removeEventFilter (QObject *obj) |
|
void | setObjectName (const QString &name) |
|
void | setParent (QObject *parent) |
|
bool | setProperty (const QString &name, const QVariant &value) |
|
bool | signalsBlocked () const |
|
int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
|
QThread * | thread () const |
|
virtual | ~QPaintDevice () |
|
int | colorCount () const |
|
int | depth () const |
|
int | devicePixelRatio () const |
|
qreal | devicePixelRatioF () const |
|
int | height () const |
|
int | heightMM () const |
|
int | logicalDpiX () const |
|
int | logicalDpiY () const |
|
bool | paintingActive () const |
|
int | physicalDpiX () const |
|
int | physicalDpiY () const |
|
int | width () const |
|
int | widthMM () const |
|
|
using | RenderFlags = QFlags< RenderFlag > |
|
enum | RenderFlag |
|
enum | PaintDeviceMetric |
|
static QWidget * | createWindowContainer (QWindow *window, QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag) |
|
static QWidget * | find (WId id) |
|
static QWidget * | keyboardGrabber () |
|
static QWidget * | mouseGrabber () |
|
static void | setTabOrder (QWidget *firstWidget, QWidget *secondWidget) |
|
static bool | connect (const QObject *sender, const QMetaMethod &signalMethod, const QObject *receiver, const QMetaMethod &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
|
static bool | connect (const QObject *sender, const QString &signalMethod, const QObject *receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection, const QString &location=QString ()) |
|
static bool | connect (const QObject *sender, const QString &signalMethod, const QString &location, const QObject *receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
|
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn > |
static bool | connect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, SlotReturn (SlotClass::*slotMethod)(SlotArgs...), Qt::ConnectionType type=Qt::AutoConnection) |
|
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T > |
static bool | connect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, T slotLambda, Qt::ConnectionType type=Qt::AutoConnection) |
|
static bool | disconnect (const QObject *sender, const QMetaMethod &signalMethod, const QObject *receiver, const QMetaMethod &slotMethod) |
|
static bool | disconnect (const QObject *sender, const QString &signalMethod, const QObject *receiver, const QString &slotMethod) |
|
static bool | disconnect (const QObject *sender, const QString &signalMethod, const QString &location, const QObject *receiver, const QString &slotMethod) |
|
static bool | disconnect (const QObject *sender, std::nullptr_t, const QObject *receiver, std::nullptr_t) |
|
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn > |
static bool | disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, SlotReturn (SlotClass::*slotMethod)(SlotArgs...)) |
|
template<class Sender , class SignalClass , class... SignalArgs, class Receiver > |
static bool | disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, std::nullptr_t slotMethod=nullptr) |
|
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T > |
static bool | disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, T slotMethod) |
|
static QMetaObject & | staticMetaObject () |
|
static QString | tr (const char *text, const char *comment=nullptr, std::optional< int > numArg=std::optional< int >()) |
|
void | updateMicroFocus () |
|
| QWidgetList |
|
| WId |
|
T | qobject_cast (QObject *object) |
|
| QObjectList |
|
The QStatusBar class provides a horizontal area for presenting status information. When a QMainWindow is used to create a GUI application a QStatusBar object is constructed when the statusbar() method is called. The status bar will be displayed at the bottom of the main window. To provide your own status bar, create a new QStatusBar object and then pass it to setStatusBar().
Every status message is one of the following category types.
- Temporary
- Briefly occupies most of the status bar, used to explain tool tip texts or menu entries
- Normal
- Occupies part of the status bar and may be hidden by temporary messages, can be used to display the current line number in a text editor
- Permanent
- Never hidden, used for important mode notifications
Temporary Messages
To display a temporary message on the left side of the status bar call the methods showMessage(). Calling the method currentMessage() returns the temporary message currently being displayed. The QStatusBar class also provide the messageChanged() signal which is emitted whenever the temporary status message changes.
void MainWindow::createStatusBar()
{
statusBar()->showMessage(
tr(
"Ready"));
}
To remove a temporary message use clearMessage(). If a numeric value is passed as the third parameter when calling showMessage() the message will disappear after the given time has elapsed.
void MainWindow::print()
{
if (dlg->
exec() != QDialog::Accepted) {
return;
}
document->
print(&printer);
statusBar()->showMessage(
tr(
"Ready"), 2000);
}
Normal and Permanent Messages
Messages of these two types are typically displayed by creating a small widget like a QLabel, QProgressBar, or QToolButton. The widget is added to the status bar using the addWidget() or the addPermanentWidget() methods.
statusBar()->addWidget(statusLabel);
Window Resizing
By default QStatusBar provides a QSizeGrip in the lower right corner. You can disable it using the setSizeGripEnabled() method. Use the isSizeGripEnabled() method to determine the current status of the size grip.
- See also
- QMainWindow, QStatusTipEvent