|
| | QDial (QWidget *parent=nullptr) |
| | Constructs a dial.
|
| |
| | ~QDial () |
| | Destroys the dial.
|
| |
| bool | wrapping () const |
| |
| int | notchSize () const |
| |
| void | setNotchTarget (double target) |
| |
| qreal | notchTarget () const |
| |
| bool | notchesVisible () const |
| |
| QSize | sizeHint () const override |
| | \reimp
|
| |
| QSize | minimumSizeHint () const override |
| | \reimp
|
| |
| | QAbstractSlider (QWidget *parent=nullptr) |
| | Constructs an abstract slider.
|
| |
| | ~QAbstractSlider () |
| | Destroys the slider.
|
| |
| Qt::Orientation | orientation () const |
| |
| void | setMinimum (int) |
| |
| int | minimum () const |
| |
| void | setMaximum (int) |
| |
| int | maximum () const |
| |
| void | setSingleStep (int) |
| |
| int | singleStep () const |
| |
| void | setPageStep (int) |
| |
| int | pageStep () const |
| |
| void | setTracking (bool enable) |
| |
| bool | hasTracking () const |
| |
| void | setSliderDown (bool) |
| |
| bool | isSliderDown () const |
| |
| void | setSliderPosition (int) |
| |
| int | sliderPosition () const |
| |
| void | setInvertedAppearance (bool) |
| |
| bool | invertedAppearance () const |
| |
| void | setInvertedControls (bool) |
| |
| bool | invertedControls () const |
| |
| int | value () const |
| |
| void | triggerAction (SliderAction action) |
| | Triggers a slider action.
|
| |
| | QWidget (QWidget *parent=nullptr, Qt::WindowFlags f=Qt::WindowFlags()) |
| | Constructs a widget which is a child of parent, with widget flags set to f.
|
| |
| | ~QWidget () |
| | Destroys the widget.
|
| |
| int | devType () const override |
| |
| WId | winId () const |
| | Returns the window system identifier of the widget.
|
| |
| void | createWinId () |
| |
| WId | internalWinId () const |
| |
| WId | effectiveWinId () const |
| |
| QStyle * | style () const |
| |
| void | setStyle (QStyle *) |
| | Sets the widget's GUI style to style.
|
| |
| bool | isWindow () const |
| | Returns true if the widget is an independent window, otherwise returns false.
|
| |
| bool | isModal () const |
| |
| Qt::WindowModality | windowModality () const |
| |
| void | setWindowModality (Qt::WindowModality windowModality) |
| |
| bool | isEnabled () const |
| |
| bool | isEnabledTo (const QWidget *) const |
| | Returns true if this widget would become enabled if ancestor is enabled; otherwise returns false.
|
| |
| QRect | frameGeometry () const |
| |
| const QRect & | geometry () const |
| |
| QRect | normalGeometry () const |
| |
| int | x () const |
| |
| int | y () const |
| |
| QPoint | pos () const |
| |
| QSize | frameSize () const |
| |
| QSize | size () const |
| |
| int | width () const |
| |
| int | height () const |
| |
| QRect | rect () const |
| |
| QRect | childrenRect () const |
| |
| QRegion | childrenRegion () const |
| |
| QSize | minimumSize () const |
| |
| QSize | maximumSize () const |
| |
| int | minimumWidth () const |
| |
| int | minimumHeight () const |
| |
| int | maximumWidth () const |
| |
| int | maximumHeight () const |
| |
| void | setMinimumSize (const QSize &) |
| |
| void | setMinimumSize (int minw, int minh) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This function corresponds to setMinimumSize(QSize(minw, minh)).
|
| |
| void | setMaximumSize (const QSize &) |
| |
| void | setMaximumSize (int maxw, int maxh) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This function corresponds to setMaximumSize(QSize(maxw, maxh)).
|
| |
| void | setMinimumWidth (int minw) |
| |
| void | setMinimumHeight (int minh) |
| |
| void | setMaximumWidth (int maxw) |
| |
| void | setMaximumHeight (int maxh) |
| |
| QSize | sizeIncrement () const |
| |
| void | setSizeIncrement (const QSize &) |
| |
| void | setSizeIncrement (int w, int h) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the x (width) size increment to w and the y (height) size increment to h.
|
| |
| QSize | baseSize () const |
| |
| void | setBaseSize (const QSize &) |
| |
| void | setBaseSize (int basew, int baseh) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setBaseSize(QSize(basew, baseh)).
|
| |
| void | setFixedSize (const QSize &) |
| | Sets both the minimum and maximum sizes of the widget to s, thereby preventing it from ever growing or shrinking.
|
| |
| void | setFixedSize (int w, int h) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the width of the widget to w and the height to h.
|
| |
| void | setFixedWidth (int w) |
| | Sets both the minimum and maximum width of the widget to w without changing the heights.
|
| |
| void | setFixedHeight (int h) |
| | Sets both the minimum and maximum heights of the widget to h without changing the widths.
|
| |
| QPointF | mapToGlobal (const QPointF &) const |
| | Translates the widget coordinate pos to global screen coordinates.
|
| |
| QPoint | mapToGlobal (const QPoint &) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QPointF | mapFromGlobal (const QPointF &) const |
| | Translates the global screen coordinate pos to widget coordinates.
|
| |
| QPoint | mapFromGlobal (const QPoint &) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QPointF | mapToParent (const QPointF &) const |
| | Translates the widget coordinate pos to a coordinate in the parent widget.
|
| |
| QPoint | mapToParent (const QPoint &) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QPointF | mapFromParent (const QPointF &) const |
| | Translates the parent widget coordinate pos to widget coordinates.
|
| |
| QPoint | mapFromParent (const QPoint &) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QPointF | mapTo (const QWidget *, const QPointF &) const |
| | Translates the widget coordinate pos to the coordinate system of parent.
|
| |
| QPoint | mapTo (const QWidget *, const QPoint &) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QPointF | mapFrom (const QWidget *, const QPointF &) const |
| | Translates the widget coordinate pos from the coordinate system of parent to this widget's coordinate system.
|
| |
| QPoint | mapFrom (const QWidget *, const QPoint &) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QWidget * | window () const |
| | Returns the window for this widget, i.e.
|
| |
| QWidget * | nativeParentWidget () const |
| |
| QWidget * | topLevelWidget () const |
| |
| const QPalette & | palette () const |
| |
| void | setPalette (const QPalette &) |
| |
| void | setBackgroundRole (QPalette::ColorRole) |
| | Sets the background role of the widget to role.
|
| |
| QPalette::ColorRole | backgroundRole () const |
| | Returns the background role of the widget.
|
| |
| void | setForegroundRole (QPalette::ColorRole) |
| | Sets the foreground role of the widget to role.
|
| |
| QPalette::ColorRole | foregroundRole () const |
| | Returns the foreground role.
|
| |
| const QFont & | font () const |
| |
| void | setFont (const QFont &) |
| |
| QFontMetrics | fontMetrics () const |
| | Returns the font metrics for the widget's current font.
|
| |
| QFontInfo | fontInfo () const |
| | Returns the font info for the widget's current font.
|
| |
| QCursor | cursor () const |
| |
| void | setCursor (const QCursor &) |
| |
| void | unsetCursor () |
| |
| void | setMouseTracking (bool enable) |
| |
| bool | hasMouseTracking () const |
| |
| bool | underMouse () const |
| | Returns true if the widget is under the mouse cursor; otherwise returns false.
|
| |
| void | setTabletTracking (bool enable) |
| |
| bool | hasTabletTracking () const |
| |
| void | setMask (const QBitmap &) |
| | Causes only the pixels of the widget for which bitmap has a corresponding 1 bit to be visible.
|
| |
| void | setMask (const QRegion &) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Causes only the parts of the widget which overlap region to be visible.
|
| |
| QRegion | mask () const |
| | Returns the mask currently set on a widget.
|
| |
| void | clearMask () |
| | Removes any mask set by setMask().
|
| |
| 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)) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Renders the widget into the painter's QPainter::device().
|
| |
| Q_INVOKABLE QPixmap | grab (const QRect &rectangle=QRect(QPoint(0, 0), QSize(-1, -1))) |
| |
| void | grabGesture (Qt::GestureType type, Qt::GestureFlags flags=Qt::GestureFlags()) |
| | Subscribes the widget to a given gesture with specific flags.
|
| |
| void | ungrabGesture (Qt::GestureType type) |
| | Unsubscribes the widget from a given gesture type.
|
| |
| QString | styleSheet () const |
| |
| QString | windowTitle () const |
| |
| void | setWindowIcon (const QIcon &icon) |
| |
| QIcon | windowIcon () const |
| |
| void | setWindowIconText (const QString &) |
| |
| QString | windowIconText () const |
| |
| void | setWindowRole (const QString &) |
| | Sets the window's role to role.
|
| |
| QString | windowRole () const |
| | Returns the window's role, or an empty string.
|
| |
| void | setWindowFilePath (const QString &filePath) |
| |
| QString | windowFilePath () const |
| |
| void | setWindowOpacity (qreal level) |
| |
| qreal | windowOpacity () const |
| |
| bool | isWindowModified () const |
| |
| void | setLayoutDirection (Qt::LayoutDirection direction) |
| |
| Qt::LayoutDirection | layoutDirection () const |
| |
| void | unsetLayoutDirection () |
| |
| void | setLocale (const QLocale &locale) |
| |
| QLocale | locale () const |
| |
| void | unsetLocale () |
| |
| bool | isRightToLeft () const |
| |
| bool | isLeftToRight () const |
| |
| bool | isActiveWindow () const |
| |
| void | activateWindow () |
| | Sets the top-level widget containing this widget to be the active window.
|
| |
| void | clearFocus () |
| | Takes keyboard input focus from the widget.
|
| |
| void | setFocus (Qt::FocusReason reason) |
| | Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the \l{isActiveWindow()}{active window}.
|
| |
| Qt::FocusPolicy | focusPolicy () const |
| |
| void | setFocusPolicy (Qt::FocusPolicy policy) |
| |
| bool | hasFocus () const |
| |
| void | setFocusProxy (QWidget *) |
| | Sets the widget's focus proxy to widget w.
|
| |
| QWidget * | focusProxy () const |
| | Returns the focus proxy, or \nullptr if there is no focus proxy.
|
| |
| Qt::ContextMenuPolicy | contextMenuPolicy () const |
| |
| void | setContextMenuPolicy (Qt::ContextMenuPolicy policy) |
| |
| void | grabMouse () |
| | Grabs the mouse input.
|
| |
| void | grabMouse (const QCursor &) |
| |
| void | releaseMouse () |
| | Releases the mouse grab.
|
| |
| void | grabKeyboard () |
| | Grabs the keyboard input.
|
| |
| void | releaseKeyboard () |
| | Releases the keyboard grab.
|
| |
| int | grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut) |
| | Adds a shortcut to Qt's shortcut system that watches for the given key sequence in the given context.
|
| |
| void | releaseShortcut (int id) |
| | Removes the shortcut with the given id from Qt's shortcut system.
|
| |
| void | setShortcutEnabled (int id, bool enable=true) |
| | If enable is true, the shortcut with the given id is enabled; otherwise the shortcut is disabled.
|
| |
| void | setShortcutAutoRepeat (int id, bool enable=true) |
| |
| bool | updatesEnabled () const |
| |
| void | setUpdatesEnabled (bool enable) |
| |
| void | update (int x, int y, int w, int h) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version updates a rectangle (x, y, w, h) inside the widget.
|
| |
| void | update (const QRect &) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version updates a rectangle rect inside the widget.
|
| |
| void | update (const QRegion &) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a region rgn inside the widget.
|
| |
| void | repaint (int x, int y, int w, int h) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a rectangle (x, y, w, h) inside the widget.
|
| |
| void | repaint (const QRect &) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a rectangle rect inside the widget.
|
| |
| void | repaint (const QRegion &) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a region rgn inside the widget.
|
| |
| void | stackUnder (QWidget *) |
| | Places the widget under w in the parent widget's stack.
|
| |
| void | move (int x, int y) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to move(QPoint(x, y)).
|
| |
| void | move (const QPoint &) |
| |
| void | resize (int w, int h) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to resize(QSize(w, h)).
|
| |
| void | resize (const QSize &) |
| |
| void | setGeometry (int x, int y, int w, int h) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setGeometry(QRect(x, y, w, h)).
|
| |
| void | setGeometry (const QRect &) |
| |
| QByteArray | saveGeometry () const |
| |
| bool | restoreGeometry (const QByteArray &geometry) |
| |
| void | adjustSize () |
| | Adjusts the size of the widget to fit its contents.
|
| |
| bool | isVisible () const |
| |
| bool | isVisibleTo (const QWidget *) const |
| | Returns true if this widget would become visible if ancestor is shown; otherwise returns false.
|
| |
| bool | isHidden () const |
| | Returns true if the widget is hidden, otherwise returns false.
|
| |
| bool | isMinimized () const |
| |
| bool | isMaximized () const |
| |
| bool | isFullScreen () const |
| |
| Qt::WindowStates | windowState () const |
| | Returns the current window state.
|
| |
| void | setWindowState (Qt::WindowStates state) |
| | Sets the window state to windowState.
|
| |
| void | overrideWindowState (Qt::WindowStates state) |
| |
| QSizePolicy | sizePolicy () const |
| |
| void | setSizePolicy (QSizePolicy) |
| |
| void | setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the size policy of the widget to horizontal and vertical, with standard stretch and no height-for-width.
|
| |
| virtual int | heightForWidth (int) const |
| | Returns the preferred height for this widget, given the width w.
|
| |
| virtual bool | hasHeightForWidth () const |
| |
| QRegion | visibleRegion () const |
| | Returns the unobscured region where paint events can occur.
|
| |
| void | setContentsMargins (int left, int top, int right, int bottom) |
| | Sets the margins around the contents of the widget to have the sizes left, top, right, and bottom.
|
| |
| void | setContentsMargins (const QMargins &margins) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QMargins | contentsMargins () const |
| | The contentsMargins function returns the widget's contents margins.
|
| |
| QRect | contentsRect () const |
| | Returns the area inside the widget's margins.
|
| |
| QLayout * | layout () const |
| | Returns the layout manager that is installed on this widget, or \nullptr if no layout manager is installed.
|
| |
| void | setLayout (QLayout *) |
| | Sets the layout manager for this widget to layout.
|
| |
| void | updateGeometry () |
| | Notifies the layout system that this widget has changed and may need to change geometry.
|
| |
| void | setParent (QWidget *parent) |
| | Sets the parent of the widget to parent, and resets the window flags.
|
| |
| void | setParent (QWidget *parent, Qt::WindowFlags f) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This function also takes widget flags, f as an argument.
|
| |
| void | scroll (int dx, int dy) |
| | Scrolls the widget including its children dx pixels to the right and dy downward.
|
| |
| void | scroll (int dx, int dy, const QRect &) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version only scrolls r and does not move the children of the widget.
|
| |
| QWidget * | focusWidget () const |
| | Returns the last child of this widget that setFocus had been called on.
|
| |
| QWidget * | nextInFocusChain () const |
| | Returns the next widget in this widget's focus chain.
|
| |
| QWidget * | previousInFocusChain () const |
| | The previousInFocusChain function returns the previous widget in this widget's focus chain.
|
| |
| bool | acceptDrops () const |
| |
| void | setAcceptDrops (bool on) |
| |
| void | addAction (QAction *action) |
| | Appends the action action to this widget's list of actions.
|
| |
| void | addActions (const QList< QAction * > &actions) |
| | Appends the actions actions to this widget's list of actions.
|
| |
| void | insertActions (QAction *before, const QList< QAction * > &actions) |
| | Inserts the actions actions to this widget's list of actions, before the action before.
|
| |
| void | insertAction (QAction *before, QAction *action) |
| | Inserts the action action to this widget's list of actions, before the action before.
|
| |
| void | removeAction (QAction *action) |
| | Removes the action action from this widget's list of actions.
|
| |
| QList< QAction * > | actions () const |
| | Returns the (possibly empty) list of this widget's actions.
|
| |
| QAction * | addAction (const QString &text) |
| |
| QAction * | addAction (const QIcon &icon, const QString &text) |
| |
| QAction * | addAction (const QString &text, const QObject *receiver, const char *member, Qt::ConnectionType type=Qt::AutoConnection) |
| |
| QAction * | addAction (const QIcon &icon, const QString &text, const QObject *receiver, const char *member, Qt::ConnectionType type=Qt::AutoConnection) |
| |
| template<typename... Args, typename = compatible_action_slot_args<Args...>> |
| QAction * | addAction (const QString &text, Args &&...args) |
| |
| template<typename... Args, typename = compatible_action_slot_args<Args...>> |
| QAction * | addAction (const QIcon &icon, const QString &text, Args &&...args) |
| |
| QWidget * | parentWidget () const |
| | Returns the parent of this widget, or \nullptr if it does not have any parent widget.
|
| |
| void | setWindowFlags (Qt::WindowFlags type) |
| |
| Qt::WindowFlags | windowFlags () const |
| | Window flags are a combination of a type (e.g.
|
| |
| void | setWindowFlag (Qt::WindowType, bool on=true) |
| |
| void | overrideWindowFlags (Qt::WindowFlags type) |
| | Sets the window flags for the widget to flags, without telling the window system.
|
| |
| Qt::WindowType | windowType () const |
| | Returns the window type of this widget.
|
| |
| QWidget * | childAt (int x, int y) const |
| | Returns the visible child widget at the position ({x}, {y}) in the widget's coordinate system.
|
| |
| QWidget * | childAt (const QPoint &p) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns the visible child widget at point p in the widget's own coordinate system.
|
| |
| QWidget * | childAt (const QPointF &p) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| void | setAttribute (Qt::WidgetAttribute, bool on=true) |
| | Sets the attribute attribute on this widget if on is true; otherwise clears the attribute.
|
| |
| bool | testAttribute (Qt::WidgetAttribute) const |
| | Returns true if attribute attribute is set on this widget; otherwise returns false.
|
| |
| QPaintEngine * | paintEngine () const override |
| | Returns the widget's paint engine.
|
| |
| void | ensurePolished () const |
| | Ensures that the widget and its children have been polished by QStyle (i.e., have a proper font and palette).
|
| |
| bool | isAncestorOf (const QWidget *child) const |
| | Returns true if this widget is a parent, (or grandparent and so on to any level), of the given child, and both widgets are within the same window; otherwise returns false.
|
| |
| bool | autoFillBackground () const |
| |
| void | setAutoFillBackground (bool enabled) |
| |
| QBackingStore * | backingStore () const |
| |
| QWindow * | windowHandle () const |
| | If this is a native widget, return the associated QWindow.
|
| |
| QScreen * | screen () const |
| | Returns the screen the widget is on.
|
| |
| void | setScreen (QScreen *) |
| | Sets the screen on which the widget should be shown to screen.
|
| |
| virtual QVariant | inputMethodQuery (Qt::InputMethodQuery) const |
| | This method is only relevant for input widgets.
|
| |
| Qt::InputMethodHints | inputMethodHints () const |
| |
| void | setInputMethodHints (Qt::InputMethodHints hints) |
| |
| Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| | Constructs an object with parent object parent.
|
| |
| virtual | ~QObject () |
| | Destroys the object, deleting all its child objects.
|
| |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| | Filters events if this object has been installed as an event filter for the watched object.
|
| |
| QString | objectName () const |
| |
| Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| | Sets the object's name to name.
|
| |
| void | setObjectName (QAnyStringView name) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| QBindable< QString > | bindableObjectName () |
| |
| bool | isWidgetType () const |
| | Returns true if the object is a widget; otherwise returns false.
|
| |
| bool | isWindowType () const |
| | Returns true if the object is a window; otherwise returns false.
|
| |
| bool | isQuickItemType () const |
| | Returns true if the object is a QQuickItem; otherwise returns false.
|
| |
| bool | signalsBlocked () const noexcept |
| | Returns true if signals are blocked; otherwise returns false.
|
| |
| bool | blockSignals (bool b) noexcept |
| | If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
|
| |
| QThread * | thread () const |
| | Returns the thread in which the object lives.
|
| |
| bool | moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL) |
| | Changes the thread affinity for this object and its children and returns true on success.
|
| |
| int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
| | This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
|
| |
| int | startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| |
| void | killTimer (int id) |
| | Kills the timer with timer identifier, id.
|
| |
| void | killTimer (Qt::TimerId id) |
| |
| template<typename T > |
| T | findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
|
| |
| template<typename T > |
| QList< T > | findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
|
| |
| template<typename T > |
| T | findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| template<typename T > |
| QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| const QObjectList & | children () const |
| | Returns a list of child objects.
|
| |
| void | setParent (QObject *parent) |
| | Makes the object a child of parent.
|
| |
| void | installEventFilter (QObject *filterObj) |
| | Installs an event filter filterObj on this object.
|
| |
| void | removeEventFilter (QObject *obj) |
| | Removes an event filter object obj from this object.
|
| |
| QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| |
| bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
| |
| bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
| |
| void | dumpObjectTree () const |
| | Dumps a tree of children to the debug output.
|
| |
| void | dumpObjectInfo () const |
| | Dumps information about signal connections, etc.
|
| |
| bool | setProperty (const char *name, const QVariant &value) |
| | Sets the value of the object's name property to value.
|
| |
| bool | setProperty (const char *name, QVariant &&value) |
| |
| QVariant | property (const char *name) const |
| | Returns the value of the object's name property.
|
| |
| QList< QByteArray > | dynamicPropertyNames () const |
| |
| QBindingStorage * | bindingStorage () |
| |
| const QBindingStorage * | bindingStorage () const |
| |
| QObject * | parent () const |
| | Returns a pointer to the parent object.
|
| |
| bool | inherits (const char *classname) const |
| | Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
|
| |
| virtual | ~QPaintDevice () |
| |
| bool | paintingActive () const |
| |
| int | width () const |
| |
| int | height () const |
| |
| int | widthMM () const |
| |
| int | heightMM () const |
| |
| int | logicalDpiX () const |
| |
| int | logicalDpiY () const |
| |
| int | physicalDpiX () const |
| |
| int | physicalDpiY () const |
| |
| qreal | devicePixelRatio () const |
| |
| qreal | devicePixelRatioF () const |
| |
| int | colorCount () const |
| |
| int | depth () const |
| |
|
| bool | event (QEvent *e) override |
| | \reimp
|
| |
| void | resizeEvent (QResizeEvent *re) override |
| | \reimp
|
| |
| void | paintEvent (QPaintEvent *pe) override |
| | \reimp
|
| |
| void | mousePressEvent (QMouseEvent *me) override |
| | \reimp
|
| |
| void | mouseReleaseEvent (QMouseEvent *me) override |
| | \reimp
|
| |
| void | mouseMoveEvent (QMouseEvent *me) override |
| | \reimp
|
| |
| void | sliderChange (SliderChange change) override |
| | \reimp
|
| |
| virtual void | initStyleOption (QStyleOptionSlider *option) const |
| | Initialize option with the values from this QDial.
|
| |
| void | setRepeatAction (SliderAction action, int thresholdTime=500, int repeatTime=50) |
| | Sets action action to be triggered repetitively in intervals of repeatTime, after an initial delay of thresholdTime.
|
| |
| SliderAction | repeatAction () const |
| | Returns the current repeat action.
|
| |
| void | keyPressEvent (QKeyEvent *ev) override |
| | \reimp
|
| |
| void | timerEvent (QTimerEvent *) override |
| | \reimp
|
| |
| void | changeEvent (QEvent *e) override |
| | \reimp
|
| |
| | QAbstractSlider (QAbstractSliderPrivate &dd, QWidget *parent=nullptr) |
| |
| bool | event (QEvent *event) override |
| | This is the main event handler; it handles event event.
|
| |
| virtual void | mouseDoubleClickEvent (QMouseEvent *event) |
| | This event handler, for event event, can be reimplemented in a subclass to receive mouse double click events for the widget.
|
| |
| virtual void | keyReleaseEvent (QKeyEvent *event) |
| | This event handler, for event event, can be reimplemented in a subclass to receive key release events for the widget.
|
| |
| virtual void | focusInEvent (QFocusEvent *event) |
| | This event handler can be reimplemented in a subclass to receive keyboard focus events (focus received) for the widget.
|
| |
| virtual void | focusOutEvent (QFocusEvent *event) |
| | This event handler can be reimplemented in a subclass to receive keyboard focus events (focus lost) for the widget.
|
| |
| virtual void | enterEvent (QEnterEvent *event) |
| | This event handler can be reimplemented in a subclass to receive widget enter events which are passed in the event parameter.
|
| |
| virtual void | leaveEvent (QEvent *event) |
| | This event handler can be reimplemented in a subclass to receive widget leave events which are passed in the event parameter.
|
| |
| virtual void | moveEvent (QMoveEvent *event) |
| | This event handler can be reimplemented in a subclass to receive widget move events which are passed in the event parameter.
|
| |
| virtual void | closeEvent (QCloseEvent *event) |
| | This event handler is called with the given event when Qt receives a window close request for a top-level widget from the window system.
|
| |
| virtual void | contextMenuEvent (QContextMenuEvent *event) |
| | This event handler, for event event, can be reimplemented in a subclass to receive widget context menu events.
|
| |
| virtual void | actionEvent (QActionEvent *event) |
| | This event handler is called with the given event whenever the widget's actions are changed.
|
| |
| virtual void | showEvent (QShowEvent *event) |
| | This event handler can be reimplemented in a subclass to receive widget show events which are passed in the event parameter.
|
| |
| virtual void | hideEvent (QHideEvent *event) |
| | This event handler can be reimplemented in a subclass to receive widget hide events.
|
| |
| virtual bool | nativeEvent (const QByteArray &eventType, void *message, qintptr *result) |
| | This special event handler can be reimplemented in a subclass to receive native platform events identified by eventType which are passed in the message parameter.
|
| |
| int | metric (PaintDeviceMetric) const override |
| | Internal implementation of the virtual QPaintDevice::metric() function.
|
| |
| void | initPainter (QPainter *painter) const override |
| | Initializes the painter pen, background and font to the same as the given widget's.
|
| |
| QPaintDevice * | redirected (QPoint *offset) const override |
| |
| QPainter * | sharedPainter () const override |
| |
| virtual void | inputMethodEvent (QInputMethodEvent *) |
| | This event handler, for event event, can be reimplemented in a subclass to receive Input Method composition events.
|
| |
| void | create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true) |
| | Creates a new widget window.
|
| |
| void | destroy (bool destroyWindow=true, bool destroySubWindows=true) |
| | Frees up window system resources.
|
| |
| virtual bool | focusNextPrevChild (bool next) |
| | Finds a new widget to give the keyboard focus to, as appropriate for Tab and Shift+Tab, and returns true if it can find a new widget, or false if it can't.
|
| |
| bool | focusNextChild () |
| | Finds a new widget to give the keyboard focus to, as appropriate for \uicontrol Tab, and returns true if it can find a new widget, or false if it can't.
|
| |
| bool | focusPreviousChild () |
| | Finds a new widget to give the keyboard focus to, as appropriate for \uicontrol Shift+Tab, and returns true if it can find a new widget, or false if it can't.
|
| |
| | QWidget (QWidgetPrivate &d, QWidget *parent, Qt::WindowFlags f) |
| |
| QObject * | sender () const |
| | Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
|
| |
| int | senderSignalIndex () const |
| |
| int | receivers (const char *signal) const |
| | Returns the number of receivers connected to the signal.
|
| |
| bool | isSignalConnected (const QMetaMethod &signal) const |
| |
| virtual void | childEvent (QChildEvent *event) |
| | This event handler can be reimplemented in a subclass to receive child events.
|
| |
| virtual void | customEvent (QEvent *event) |
| | This event handler can be reimplemented in a subclass to receive custom events.
|
| |
| virtual void | connectNotify (const QMetaMethod &signal) |
| |
| virtual void | disconnectNotify (const QMetaMethod &signal) |
| |
| | QObject (QObjectPrivate &dd, QObject *parent=nullptr) |
| |
| | QPaintDevice () noexcept |
| |
| double | getDecodedMetricF (PaintDeviceMetric metricA, PaintDeviceMetric metricB) const |
| |
|
| enum | SliderAction {
SliderNoAction
, SliderSingleStepAdd
, SliderSingleStepSub
, SliderPageStepAdd
,
SliderPageStepSub
, SliderToMinimum
, SliderToMaximum
, SliderMove
} |
| | \value SliderNoAction \value SliderSingleStepAdd \value SliderSingleStepSub \value SliderPageStepAdd \value SliderPageStepSub \value SliderToMinimum \value SliderToMaximum \value SliderMove More...
|
| |
| enum | RenderFlag { DrawWindowBackground = 0x1
, DrawChildren = 0x2
, IgnoreMask = 0x4
} |
| | This enum describes how to render the widget when calling QWidget::render(). More...
|
| |
| enum | PaintDeviceMetric {
PdmWidth = 1
, PdmHeight
, PdmWidthMM
, PdmHeightMM
,
PdmNumColors
, PdmDepth
, PdmDpiX
, PdmDpiY
,
PdmPhysicalDpiX
, PdmPhysicalDpiY
, PdmDevicePixelRatio
, PdmDevicePixelRatioScaled
,
PdmDevicePixelRatioF_EncodedA
, PdmDevicePixelRatioF_EncodedB
} |
| |
| void | valueChanged (int value) |
| | This signal is emitted when the slider value has changed, with the new slider value as argument.
|
| |
| void | sliderPressed () |
| | This signal is emitted when the user presses the slider with the mouse, or programmatically when setSliderDown(true) is called.
|
| |
| void | sliderMoved (int position) |
| | This signal is emitted when sliderDown is true and the slider moves.
|
| |
| void | sliderReleased () |
| | This signal is emitted when the user releases the slider with the mouse, or programmatically when setSliderDown(false) is called.
|
| |
| void | rangeChanged (int min, int max) |
| | This signal is emitted when the slider range has changed, with min being the new minimum, and max being the new maximum.
|
| |
| void | actionTriggered (int action) |
| | This signal is emitted when the slider action action is triggered.
|
| |
| void | windowTitleChanged (const QString &title) |
| | This signal is emitted when the window's title has changed, with the new title as an argument.
|
| |
| void | windowIconChanged (const QIcon &icon) |
| | This signal is emitted when the window's icon has changed, with the new icon as an argument.
|
| |
| void | windowIconTextChanged (const QString &iconText) |
| | This signal is emitted when the window's icon text has changed, with the new iconText as an argument.
|
| |
| void | customContextMenuRequested (const QPoint &pos) |
| | This signal is emitted when the widget's \l contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget.
|
| |
| void | destroyed (QObject *=nullptr) |
| | This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
|
| |
| void | objectNameChanged (const QString &objectName, QPrivateSignal) |
| | This signal is emitted after the object's name has been changed.
|
| |
| static void | setTabOrder (QWidget *, QWidget *) |
| | Puts the second widget after the first widget in the focus order.
|
| |
| static void | setTabOrder (std::initializer_list< QWidget * > widgets) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| static QWidget * | mouseGrabber () |
| | Returns the widget that is currently grabbing the mouse input.
|
| |
| static QWidget * | keyboardGrabber () |
| | Returns the widget that is currently grabbing the keyboard input.
|
| |
| static QWidget * | find (WId) |
| | Returns a pointer to the widget with window identifier/handle id.
|
| |
| static QWidget * | createWindowContainer (QWindow *window, QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::WindowFlags()) |
| | Creates a QWidget that makes it possible to embed window into a QWidget-based application.
|
| |
| static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| | \threadsafe
|
| |
| static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| |
| template<typename Func1 , typename Func2 > |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection) |
| |
| template<typename Func1 , typename Func2 > |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
| |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| | \threadsafe
|
| |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| |
| static bool | disconnect (const QMetaObject::Connection &) |
| | Disconnect a connection.
|
| |
| template<typename Func1 , typename Func2 > |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot) |
| |
| template<typename Func1 > |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
| |
| static qreal | devicePixelRatioFScale () |
| |
| static int | encodeMetricF (PaintDeviceMetric metric, double value) |
| |
| enum | SliderChange { SliderRangeChange
, SliderOrientationChange
, SliderStepsChange
, SliderValueChange
} |
| | \value SliderRangeChange \value SliderOrientationChange \value SliderStepsChange \value SliderValueChange More...
|
| |
| void | updateMicroFocus (Qt::InputMethodQuery query=Qt::ImQueryAll) |
| | Updates the widget's micro focus and informs input methods that the state specified by query has changed.
|
| |
| QScopedPointer< QObjectData > | d_ptr |
| |
| ushort | painters |
| |
| | setupUi (QWidget *widget) |
| | \macro QWIDGETSIZE_MAX
|
| |
| template< class T > T | qobject_cast (const QObject *object) |
| | Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
|
| |
| template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| |
| template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| |
| | QObjectList |
| | \macro Q_CLASSINFO(Name, Value)
|
| |
The QDial class provides a rounded range control (like a speedometer or potentiometer).
\inmodule QtWidgets
QDial is used when the user needs to control a value within a program-definable range, and the range either wraps around (for example, with angles measured from 0 to 359 degrees) or the dialog layout needs a square widget.
Since QDial inherits from QAbstractSlider, the dial behaves in a similar way to a \l{QSlider}{slider}. When wrapping() is false (the default setting) there is no real difference between a slider and a dial. They both share the same signals, slots and member functions. Which one you use depends on the expectations of your users and on the type of application.
The dial initially emits valueChanged() signals continuously while the slider is being moved; you can make it emit the signal less often by disabling the \l{QAbstractSlider::tracking} {tracking} property. The sliderMoved() signal is emitted continuously even when tracking is disabled.
The dial also emits sliderPressed() and sliderReleased() signals when the mouse button is pressed and released. Note that the dial's value can change without these signals being emitted since the keyboard and wheel can also be used to change the value.
Unlike the slider, QDial attempts to draw a "nice" number of notches rather than one per line step. If possible, the number of notches drawn is one per line step, but if there aren't enough pixels to draw every one, QDial will skip notches to try and draw a uniform set (e.g. by drawing every second or third notch).
Like the slider, the dial makes the QAbstractSlider function setValue() available as a slot.
The dial's keyboard interface is fairly simple: The \uicontrol{left}/\uicontrol{up} and \uicontrol{right}/\uicontrol{down} arrow keys adjust the dial's \l {QAbstractSlider::value} {value} by the defined \l {QAbstractSlider::singleStep} {singleStep}, \uicontrol{Page Up} and \uicontrol{Page Down} by the defined \l {QAbstractSlider::pageStep} {pageStep}, and the \uicontrol Home and \uicontrol End keys set the value to the defined \l {QAbstractSlider::minimum} {minimum} and \l {QAbstractSlider::maximum} {maximum} values.
If you are using the mouse wheel to adjust the dial, the increment value is determined by the lesser value of \l{QApplication::wheelScrollLines()} {wheelScrollLines} multiplied by \l {QAbstractSlider::singleStep} {singleStep}, and \l {QAbstractSlider::pageStep} {pageStep}.
- See also
- QScrollBar, QSpinBox, QSlider, {Sliders Example}
Definition at line 19 of file qdial.h.
Inheritance diagram for QDial:
1.12.0