Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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The QQuickWidget class provides a widget for displaying a Qt Quick user interface. More...
#include <qquickwidget.h>
Public Types | |
enum | ResizeMode { SizeViewToRootObject , SizeRootObjectToView } |
This enum specifies how to resize the view. More... | |
enum | Status { Null , Ready , Loading , Error } |
Specifies the loading status of the QQuickWidget. More... | |
Public Types inherited from QWidget | |
enum | RenderFlag { DrawWindowBackground = 0x1 , DrawChildren = 0x2 , IgnoreMask = 0x4 } |
This enum describes how to render the widget when calling QWidget::render(). More... | |
Public Types inherited from QPaintDevice | |
enum | PaintDeviceMetric { PdmWidth = 1 , PdmHeight , PdmWidthMM , PdmHeightMM , PdmNumColors , PdmDepth , PdmDpiX , PdmDpiY , PdmPhysicalDpiX , PdmPhysicalDpiY , PdmDevicePixelRatio , PdmDevicePixelRatioScaled } |
Public Slots | |
void | setSource (const QUrl &) |
Sets the source to the url, loads the QML component and instantiates it. | |
void | setContent (const QUrl &url, QQmlComponent *component, QObject *item) |
Public Slots inherited from QWidget | |
void | setEnabled (bool) |
void | setDisabled (bool) |
Disables widget input events if disable is true; otherwise enables input events. | |
void | setWindowModified (bool) |
void | setWindowTitle (const QString &) |
void | setStyleSheet (const QString &styleSheet) |
void | setFocus () |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.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}. | |
void | update () |
Updates the widget unless updates are disabled or the widget is hidden. | |
void | repaint () |
Repaints the widget directly by calling paintEvent() immediately, unless updates are disabled or the widget is hidden. | |
virtual void | setVisible (bool visible) |
void | setHidden (bool hidden) |
Convenience function, equivalent to setVisible(!hidden). | |
void | show () |
Shows the widget and its child widgets. | |
void | hide () |
Hides the widget. | |
void | showMinimized () |
Shows the widget minimized, as an icon. | |
void | showMaximized () |
Shows the widget maximized. | |
void | showFullScreen () |
Shows the widget in full-screen mode. | |
void | showNormal () |
Restores the widget after it has been maximized or minimized. | |
bool | close () |
Closes this widget. | |
void | raise () |
Raises this widget to the top of the parent widget's stack. | |
void | lower () |
Lowers the widget to the bottom of the parent widget's stack. | |
Public Slots inherited from QObject | |
void | deleteLater () |
\threadsafe | |
Signals | |
void | statusChanged (QQuickWidget::Status) |
This signal is emitted when the component's current status changes. | |
void | sceneGraphError (QQuickWindow::SceneGraphError error, const QString &message) |
This signal is emitted when an error occurred during scene graph initialization. | |
Signals inherited from QWidget | |
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. | |
Signals inherited from QObject | |
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. | |
Public Member Functions | |
QQuickWidget (QWidget *parent=nullptr) | |
Constructs a QQuickWidget with a default QML engine as a child of parent. | |
QQuickWidget (QQmlEngine *engine, QWidget *parent) | |
Constructs a QQuickWidget with the given QML engine as a child of parent. | |
QQuickWidget (const QUrl &source, QWidget *parent=nullptr) | |
Constructs a QQuickWidget with a default QML engine and the given QML source as a child of parent. | |
~QQuickWidget () override | |
Destroys the QQuickWidget. | |
QUrl | source () const |
Returns the source URL, if set. | |
QQmlEngine * | engine () const |
Returns a pointer to the QQmlEngine used for instantiating QML Components. | |
QQmlContext * | rootContext () const |
This function returns the root of the context hierarchy. | |
QQuickItem * | rootObject () const |
Returns the view's root \l {QQuickItem} {item}. | |
ResizeMode | resizeMode () const |
void | setResizeMode (ResizeMode) |
Status | status () const |
QList< QQmlError > | errors () const |
Return the list of errors that occurred during the last compile or create operation. | |
QSize | sizeHint () const override |
QSize | initialSize () const |
Returns the initial size of the root object. | |
void | setFormat (const QSurfaceFormat &format) |
Sets the surface format for the context and offscreen surface used by this widget. | |
QSurfaceFormat | format () const |
Returns the actual surface format. | |
QImage | grabFramebuffer () const |
Renders a frame and reads it back into an image. | |
void | setClearColor (const QColor &color) |
Sets the clear color. | |
QQuickWindow * | quickWindow () const |
Public Member Functions inherited from QWidget | |
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) |
virtual QSize | minimumSizeHint () const |
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. | |
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) |
Public Member Functions inherited from QObject | |
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 . | |
Public Member Functions inherited from QPaintDevice | |
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 |
Protected Member Functions | |
void | resizeEvent (QResizeEvent *) override |
void | timerEvent (QTimerEvent *) override |
void | keyPressEvent (QKeyEvent *) override |
\reimp | |
void | keyReleaseEvent (QKeyEvent *) override |
\reimp | |
void | mousePressEvent (QMouseEvent *) override |
\reimp | |
void | mouseReleaseEvent (QMouseEvent *) override |
\reimp | |
void | mouseMoveEvent (QMouseEvent *) override |
\reimp | |
void | mouseDoubleClickEvent (QMouseEvent *) override |
\reimp | |
void | showEvent (QShowEvent *) override |
\reimp | |
void | hideEvent (QHideEvent *) override |
\reimp | |
void | focusInEvent (QFocusEvent *event) override |
\reimp | |
void | focusOutEvent (QFocusEvent *event) override |
\reimp | |
bool | event (QEvent *) override |
\reimp | |
void | paintEvent (QPaintEvent *event) override |
\reimp | |
bool | focusNextPrevChild (bool next) override |
\reimp | |
Protected Member Functions inherited from QWidget | |
bool | event (QEvent *event) override |
This is the main event handler; it handles event event. | |
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 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. | |
virtual void | changeEvent (QEvent *) |
This event handler can be reimplemented to handle state changes. | |
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. | |
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) | |
Protected Member Functions inherited from QObject | |
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) | |
Protected Member Functions inherited from QPaintDevice | |
QPaintDevice () noexcept | |
Properties | |
ResizeMode | resizeMode |
Determines whether the view should resize the window contents. | |
Status | status |
The component's current \l{QQuickWidget::Status} {status}. | |
QUrl | source |
The URL of the source of the QML component. | |
Properties inherited from QWidget | |
bool | modal |
whether the widget is a modal widget | |
Qt::WindowModality | windowModality |
which windows are blocked by the modal widget | |
bool | enabled |
whether the widget is enabled | |
QRect | geometry |
the geometry of the widget relative to its parent and excluding the window frame | |
QRect | frameGeometry |
geometry of the widget relative to its parent including any window frame | |
QRect | normalGeometry |
the geometry of the widget as it will appear when shown as a normal (not maximized or full screen) top-level widget | |
int | x |
the x coordinate of the widget relative to its parent including any window frame | |
int | y |
the y coordinate of the widget relative to its parent and including any window frame | |
QPoint | pos |
the position of the widget within its parent widget | |
QSize | frameSize |
the size of the widget including any window frame | |
QSize | size |
the size of the widget excluding any window frame | |
int | width |
the width of the widget excluding any window frame | |
int | height |
the height of the widget excluding any window frame | |
QRect | rect |
the internal geometry of the widget excluding any window frame | |
QRect | childrenRect |
the bounding rectangle of the widget's children | |
QRegion | childrenRegion |
the combined region occupied by the widget's children | |
QSizePolicy | sizePolicy |
the default layout behavior of the widget | |
QSize | minimumSize |
the widget's minimum size | |
QSize | maximumSize |
the widget's maximum size in pixels | |
int | minimumWidth |
the widget's minimum width in pixels | |
int | minimumHeight |
the widget's minimum height in pixels | |
int | maximumWidth |
the widget's maximum width in pixels | |
int | maximumHeight |
the widget's maximum height in pixels | |
QSize | sizeIncrement |
the size increment of the widget | |
QSize | baseSize |
the base size of the widget | |
QPalette | palette |
the widget's palette | |
QFont | font |
the font currently set for the widget | |
QCursor | cursor |
the cursor shape for this widget | |
bool | mouseTracking |
whether mouse tracking is enabled for the widget | |
bool | tabletTracking |
whether tablet tracking is enabled for the widget | |
bool | isActiveWindow |
whether this widget's window is the active window | |
Qt::FocusPolicy | focusPolicy |
the way the widget accepts keyboard focus | |
bool | focus |
whether this widget (or its focus proxy) has the keyboard input focus | |
Qt::ContextMenuPolicy | contextMenuPolicy |
how the widget shows a context menu | |
bool | updatesEnabled |
whether updates are enabled | |
bool | visible |
whether the widget is visible | |
bool | minimized |
whether this widget is minimized (iconified) | |
bool | maximized |
whether this widget is maximized | |
bool | fullScreen |
whether the widget is shown in full screen mode | |
QSize | sizeHint |
the recommended size for the widget | |
QSize | minimumSizeHint |
the recommended minimum size for the widget | |
bool | acceptDrops |
whether drop events are enabled for this widget | |
QString | windowTitle |
the window title (caption) | |
QIcon | windowIcon |
the widget's icon | |
QString | windowIconText |
the text to be displayed on the icon of a minimized window | |
double | windowOpacity |
The level of opacity for the window. | |
bool | windowModified |
whether the document shown in the window has unsaved changes | |
Qt::LayoutDirection | layoutDirection |
the layout direction for this widget. | |
bool | autoFillBackground |
whether the widget background is filled automatically | |
QString | styleSheet |
the widget's style sheet | |
QLocale | locale |
the widget's locale | |
QString | windowFilePath |
the file path associated with a widget | |
Qt::InputMethodHints | inputMethodHints |
What input method specific hints the widget has. | |
Properties inherited from QObject | |
QString | objectName |
the name of this object | |
Additional Inherited Members | |
Static Public Member Functions inherited from QWidget | |
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 Public Member Functions inherited from QObject | |
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 Public Member Functions inherited from QPaintDevice | |
static qreal | devicePixelRatioFScale () |
Protected Slots inherited from QWidget | |
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. | |
Protected Attributes inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
Protected Attributes inherited from QPaintDevice | |
ushort | painters |
Related Symbols inherited from QWidget | |
setupUi (QWidget *widget) | |
\macro QWIDGETSIZE_MAX | |
Related Symbols inherited from QObject | |
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 QQuickWidget class provides a widget for displaying a Qt Quick user interface.
\inmodule QtQuickWidgets
This is a convenience wrapper for QQuickWindow which will automatically load and display a QML scene when given the URL of the main source file. Alternatively, you can instantiate your own objects using QQmlComponent and place them in a manually set up QQuickWidget.
Typical usage:
To receive errors related to loading and executing QML with QQuickWidget, you can connect to the statusChanged() signal and monitor for QQuickWidget::Error. The errors are available via QQuickWidget::errors().
QQuickWidget also manages sizing of the view and root object. By default, the \l resizeMode is SizeViewToRootObject, which will load the component and resize it to the size of the view. Alternatively the resizeMode may be set to SizeRootObjectToView which will resize the view to the size of the root object.
Definition at line 22 of file qquickwidget.h.
This enum specifies how to resize the view.
\value SizeViewToRootObject The view resizes with the root item in the QML. \value SizeRootObjectToView The view will automatically resize the root item to the size of the view.
Enumerator | |
---|---|
SizeViewToRootObject | |
SizeRootObjectToView |
Definition at line 42 of file qquickwidget.h.
enum QQuickWidget::Status |
Specifies the loading status of the QQuickWidget.
\value Null This QQuickWidget has no source set. \value Ready This QQuickWidget has loaded and created the QML component. \value Loading This QQuickWidget is loading network data. \value Error One or more errors occurred. Call errors() to retrieve a list of errors.
Enumerator | |
---|---|
Null | |
Ready | |
Loading | |
Error |
Definition at line 47 of file qquickwidget.h.
Constructs a QQuickWidget with a default QML engine as a child of parent.
The default value of parent is nullptr
.
Definition at line 635 of file qquickwidget.cpp.
QQuickWidget::QQuickWidget | ( | QQmlEngine * | engine, |
QWidget * | parent ) |
Constructs a QQuickWidget with the given QML engine as a child of parent.
Definition at line 660 of file qquickwidget.cpp.
Constructs a QQuickWidget with a default QML engine and the given QML source as a child of parent.
The default value of parent is nullptr
.
Definition at line 647 of file qquickwidget.cpp.
References setSource().
|
override |
QQmlEngine * QQuickWidget::engine | ( | ) | const |
Returns a pointer to the QQmlEngine used for instantiating QML Components.
Definition at line 755 of file qquickwidget.cpp.
References d.
Return the list of errors that occurred during the last compile or create operation.
When the status is not \l Error, an empty list is returned.
Definition at line 836 of file qquickwidget.cpp.
References d, error, and QQmlComponent::Ready.
|
overrideprotectedvirtual |
\reimp
Reimplemented from QObject.
Definition at line 1663 of file qquickwidget.cpp.
References d, QEvent::DevicePixelRatioChange, QEvent::Enter, QWidget::enterEvent(), QWidget::event(), QPointerEvent::exclusiveGrabber(), QEvent::FocusAboutToChange, QEvent::InputMethod, QEvent::InputMethodQuery, QEvent::isAccepted(), QList< T >::isEmpty(), QEvent::Leave, QEvent::Move, QPointerEvent::passiveGrabbers(), QPointerEvent::points(), remapInputMethodQueryEvent(), resolveWindowState(), ret, QWidget::screen(), QEvent::ScreenChangeInternal, QCoreApplication::sendEvent(), QEvent::setAccepted(), QEvent::ShortcutOverride, QEvent::Show, QEvent::TouchBegin, QEvent::TouchCancel, QEvent::TouchEnd, QEvent::TouchUpdate, QEvent::type(), QEvent::WindowAboutToChangeInternal, QEvent::WindowChangeInternal, QWidget::windowState(), and QEvent::WindowStateChange.
|
overrideprotectedvirtual |
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1446 of file qquickwidget.cpp.
References d, Qt::Key_Backtab, Qt::Key_Tab, QEvent::KeyPress, QEvent::KeyRelease, next, Qt::NoModifier, Q_QUICK_INPUT_PROFILE, and QCoreApplication::sendEvent().
|
overrideprotectedvirtual |
QSurfaceFormat QQuickWidget::format | ( | ) | const |
Returns the actual surface format.
If the widget has not yet been shown, the requested format is returned.
Definition at line 1861 of file qquickwidget.cpp.
References d.
Referenced by setFormat().
QImage QQuickWidget::grabFramebuffer | ( | ) | const |
Renders a frame and reads it back into an image.
Definition at line 1872 of file qquickwidget.cpp.
References grabFramebuffer().
Referenced by grabFramebuffer().
|
overrideprotectedvirtual |
QSize QQuickWidget::initialSize | ( | ) | const |
Returns the initial size of the root object.
If \l resizeMode is SizeRootObjectToView, the root object will be resized to the size of the view. This function returns the size of the root object before it was resized.
Definition at line 1372 of file qquickwidget.cpp.
References d.
\reimp
Reimplemented from QWidget.
Definition at line 1462 of file qquickwidget.cpp.
References d, QKeyEvent::key(), QKeyEvent::modifiers(), Q_QUICK_INPUT_PROFILE, and QCoreApplication::sendEvent().
\reimp
Reimplemented from QWidget.
Definition at line 1472 of file qquickwidget.cpp.
References d, QKeyEvent::key(), QKeyEvent::modifiers(), Q_QUICK_INPUT_PROFILE, and QCoreApplication::sendEvent().
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1501 of file qquickwidget.cpp.
References QSinglePointEvent::button(), QSinglePointEvent::buttons(), d, QSinglePointEvent::globalPosition(), QInputEvent::modifiers(), QEvent::MouseButtonPress, QSinglePointEvent::position(), Q_QUICK_INPUT_PROFILE, QCoreApplication::sendEvent(), QPointerEvent::setAccepted(), QMouseEvent::source(), QInputEvent::timestamp(), and QEvent::type().
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1482 of file qquickwidget.cpp.
References QSinglePointEvent::button(), QSinglePointEvent::buttons(), d, QSinglePointEvent::globalPosition(), QInputEvent::modifiers(), QSinglePointEvent::position(), Q_QUICK_INPUT_PROFILE, QCoreApplication::sendEvent(), QPointerEvent::setAccepted(), QMouseEvent::source(), QInputEvent::timestamp(), QEvent::type(), QPointF::x(), and QPointF::y().
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1568 of file qquickwidget.cpp.
References QSinglePointEvent::button(), QSinglePointEvent::buttons(), d, QSinglePointEvent::globalPosition(), QInputEvent::modifiers(), QSinglePointEvent::position(), Q_QUICK_INPUT_PROFILE, QCoreApplication::sendEvent(), QPointerEvent::setAccepted(), QMouseEvent::source(), QInputEvent::timestamp(), and QEvent::type().
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1582 of file qquickwidget.cpp.
References QSinglePointEvent::button(), QSinglePointEvent::buttons(), d, QSinglePointEvent::globalPosition(), QInputEvent::modifiers(), QSinglePointEvent::position(), Q_QUICK_INPUT_PROFILE, QCoreApplication::sendEvent(), QPointerEvent::setAccepted(), QMouseEvent::source(), QInputEvent::timestamp(), and QEvent::type().
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1920 of file qquickwidget.cpp.
References d, QPaintDevice::devicePixelRatio(), QPainter::drawImage(), painter, QWidget::rect, QTransform::scale(), and QRegion::swap().
QQuickWindow * QQuickWidget::quickWindow | ( | ) | const |
Returns the offscreen QQuickWindow which is used by this widget to drive the Qt Quick rendering. This is useful if you want to use QQuickWindow APIs that are not currently exposed by QQuickWidget, for instance connecting to the QQuickWindow::beforeRendering() signal in order to draw native OpenGL content below Qt Quick's own rendering.
Definition at line 1911 of file qquickwidget.cpp.
References d.
|
overrideprotectedvirtual |
This function handles the \l {QResizeEvent} {resize event} e.
Reimplemented from QWidget.
Definition at line 1394 of file qquickwidget.cpp.
References d, QPaintDevice::devicePixelRatio(), QSize::isEmpty(), qWarning, QResizeEvent::size(), and SizeRootObjectToView.
QQuickWidget::ResizeMode QQuickWidget::resizeMode | ( | ) | const |
Definition at line 1219 of file qquickwidget.cpp.
References d.
QQmlContext * QQuickWidget::rootContext | ( | ) | const |
This function returns the root of the context hierarchy.
Each QML component is instantiated in a QQmlContext. QQmlContext's are essential for passing data to QML components. In QML, contexts are arranged hierarchically and this hierarchy is managed by the QQmlEngine.
Definition at line 769 of file qquickwidget.cpp.
References d.
QQuickItem * QQuickWidget::rootObject | ( | ) | const |
Returns the view's root \l {QQuickItem} {item}.
Can be null when setSource() has not been called, if it was called with broken QtQuick code or while the QtQuick contents are being created.
Definition at line 1383 of file qquickwidget.cpp.
References d.
|
signal |
This signal is emitted when an error occurred during scene graph initialization.
Applications should connect to this signal if they wish to handle errors, like OpenGL context creation failures, in a custom way. When no slot is connected to the signal, the behavior will be different: Quick will print the message, or show a message box, and terminate the application.
This signal will be emitted from the GUI thread.
Referenced by QQuickWidgetPrivate::handleContextCreationFailure().
Sets the clear color.
By default this is an opaque color.
To get a semi-transparent QQuickWidget, call this function with color set to Qt::transparent, set the Qt::WA_TranslucentBackground widget attribute on the top-level window, and request an alpha channel via setFormat().
Definition at line 1887 of file qquickwidget.cpp.
References d.
|
slot |
Sets the source url, component and content item (root of the QML object hierarchy) directly.
Definition at line 720 of file qquickwidget.cpp.
References component(), d, emit, error, item, status, statusChanged(), url, and QMessageLogger::warning().
void QQuickWidget::setFormat | ( | const QSurfaceFormat & | format | ) |
Sets the surface format for the context and offscreen surface used by this widget.
Call this function when there is a need to request a context for a given OpenGL version or profile. The sizes for depth, stencil and alpha buffers are taken care of automatically and there is no need to request those explicitly.
Definition at line 1835 of file qquickwidget.cpp.
References d, format(), qMax(), and QSurfaceFormat::setDepthBufferSize().
void QQuickWidget::setResizeMode | ( | ResizeMode | mode | ) |
Definition at line 875 of file qquickwidget.cpp.
References d, QQuickItemPrivate::Geometry, QQuickItemPrivate::get(), and SizeViewToRootObject.
Sets the source to the url, loads the QML component and instantiates it.
Ensure that the URL provided is full and correct, in particular, use \l QUrl::fromLocalFile() when loading a file from the local filesystem.
Calling this method multiple times with the same URL will result in the QML component being reinstantiated.
Definition at line 708 of file qquickwidget.cpp.
Referenced by QQuickWidget().
|
overrideprotectedvirtual |
\reimp
Reimplemented from QWidget.
Definition at line 1521 of file qquickwidget.cpp.
References d, QWidget::update(), QWidget::window(), and QWidget::windowHandle().
|
overridevirtual |
Preferred size follows the root object geometry.
Reimplemented from QWidget.
Definition at line 1354 of file qquickwidget.cpp.
References d, QSize::isEmpty(), and QWidget::size.
QUrl QQuickWidget::source | ( | ) | const |
Returns the source URL, if set.
Definition at line 745 of file qquickwidget.cpp.
References d.
QQuickWidget::Status QQuickWidget::status | ( | ) | const |
Definition at line 815 of file qquickwidget.cpp.
References d, Error, Null, and QQmlComponent::Ready.
|
signal |
This signal is emitted when the component's current status changes.
Referenced by setContent().
|
overrideprotectedvirtual |
Handle item resize and scene updates.
Reimplemented from QObject.
Definition at line 1336 of file qquickwidget.cpp.
References d, and QTimerEvent::timerId().
|
readwrite |
Determines whether the view should resize the window contents.
If this property is set to SizeViewToRootObject (the default), the view resizes to the size of the root item in the QML.
If this property is set to SizeRootObjectToView, the view will automatically resize the root item to the size of the view.
Regardless of this property, the sizeHint of the view is the initial size of the root item. Note though that since QML may load dynamically, that size may change.
Definition at line 25 of file qquickwidget.h.
|
readwrite |
The URL of the source of the QML component.
Ensure that the URL provided is full and correct, in particular, use \l QUrl::fromLocalFile() when loading a file from the local filesystem.
Definition at line 27 of file qquickwidget.h.
|
read |
The component's current \l{QQuickWidget::Status} {status}.
Definition at line 26 of file qquickwidget.h.
Referenced by setContent().