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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#include <qwasmscreen.h>
Public Slots | |
void | setGeometry (const QRect &rect) |
Public Slots inherited from QObject | |
void | deleteLater () |
\threadsafe | |
Public Member Functions | |
QWasmScreen (const emscripten::val &containerOrCanvas) | |
~QWasmScreen () | |
void | deleteScreen () |
emscripten::val | element () const |
QString | eventTargetId () const |
QString | outerScreenId () const |
QPointingDevice * | touchDevice () |
QPointingDevice * | tabletDevice () |
QWasmCompositor * | compositor () |
QWasmDeadKeySupport * | deadKeySupport () |
QList< QWasmWindow * > | allWindows () |
QRect | geometry () const override |
Reimplement in subclass to return the pixel geometry of the screen. | |
int | depth () const override |
Reimplement in subclass to return current depth of the screen. | |
QImage::Format | format () const override |
Reimplement in subclass to return the image format which corresponds to the screen format. | |
QDpi | logicalDpi () const override |
Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen. | |
qreal | devicePixelRatio () const override |
Reimplement this function in subclass to return the device pixel ratio for the screen. | |
QString | name () const override |
QPlatformCursor * | cursor () const override |
Reimplement this function in subclass to return the cursor of the screen. | |
void | resizeMaximizedWindows () |
QWindow * | topWindow () const |
QWindow * | topLevelAt (const QPoint &p) const override |
Return the given top level window for a given position. | |
emscripten::val | containerElement () final |
QWasmWindowTreeNode * | parentNode () final |
QPointF | mapFromLocal (const QPointF &p) const |
QPointF | clipPoint (const QPointF &p) const |
void | invalidateSize () |
void | updateQScreenAndCanvasRenderSize () |
void | installCanvasResizeObserver () |
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 | event (QEvent *event) |
This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
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 QPlatformScreen | |
QPlatformScreen () | |
virtual | ~QPlatformScreen () |
virtual bool | isPlaceholder () const |
virtual QPixmap | grabWindow (WId window, int x, int y, int width, int height) const |
This function is called when Qt needs to be able to grab the content of a window. | |
virtual QRect | availableGeometry () const |
Reimplement in subclass to return the pixel geometry of the available space This normally is the desktop screen minus the task manager, global menubar etc. | |
virtual QColorSpace | colorSpace () const |
virtual QSizeF | physicalSize () const |
Reimplement this function in subclass to return the physical size of the screen, in millimeters. | |
virtual QDpi | logicalBaseDpi () const |
Reimplement to return the base logical DPI for the platform. | |
virtual qreal | refreshRate () const |
Reimplement this function in subclass to return the vertical refresh rate of the screen, in Hz. | |
virtual Qt::ScreenOrientation | nativeOrientation () const |
Reimplement this function in subclass to return the native orientation of the screen, e.g. | |
virtual Qt::ScreenOrientation | orientation () const |
Reimplement this function in subclass to return the current orientation of the screen, for example based on accelerometer data to determine the device orientation. | |
QWindowList | windows () const |
Return all windows residing on this screen. | |
virtual QList< QPlatformScreen * > | virtualSiblings () const |
Returns a list of all the platform screens that are part of the same virtual desktop. | |
const QPlatformScreen * | screenForPosition (const QPoint &point) const |
Find the sibling screen corresponding to globalPos. | |
QScreen * | screen () const |
virtual QString | manufacturer () const |
Reimplement this function in subclass to return the manufacturer of this screen. | |
virtual QString | model () const |
Reimplement this function in subclass to return the model of this screen. | |
virtual QString | serialNumber () const |
Reimplement this function in subclass to return the serial number of this screen. | |
virtual SubpixelAntialiasingType | subpixelAntialiasingTypeHint () const |
Returns a hint about this screen's subpixel layout structure. | |
virtual PowerState | powerState () const |
Returns the current power state. | |
virtual void | setPowerState (PowerState state) |
Sets the power state for this screen. | |
virtual QList< Mode > | modes () const |
Reimplement this function in subclass to return the list of modes for this screen. | |
virtual int | currentMode () const |
Reimplement this function in subclass to return the index of the current mode from the modes list. | |
virtual int | preferredMode () const |
Reimplement this function in subclass to return the preferred mode index from the modes list. | |
Public Member Functions inherited from QWasmWindowTreeNode | |
QWasmWindowTreeNode () | |
virtual | ~QWasmWindowTreeNode () |
Static Public Member Functions | |
static QWasmScreen * | get (QPlatformScreen *screen) |
static QWasmScreen * | get (QScreen *screen) |
static void | canvasResizeObserverCallback (emscripten::val entries, emscripten::val) |
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 QPlatformScreen | |
static QPlatformScreen * | platformScreenForWindow (const QWindow *window) |
static int | angleBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b) |
static QTransform | transformBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &target) |
static QRect | mapBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &rect) |
static QDpi | overrideDpi (const QDpi &in) |
Private Member Functions | |
void | onSubtreeChanged (QWasmWindowTreeNodeChangeType changeType, QWasmWindowTreeNode *parent, QWasmWindow *child) final |
Additional Inherited Members | |
Public Types inherited from QPlatformScreen | |
enum | SubpixelAntialiasingType { Subpixel_None , Subpixel_RGB , Subpixel_BGR , Subpixel_VRGB , Subpixel_VBGR } |
enum | PowerState { PowerStateOn , PowerStateStandby , PowerStateSuspend , PowerStateOff } |
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. | |
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 | timerEvent (QTimerEvent *event) |
This event handler can be reimplemented in a subclass to receive timer events for the object. | |
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 QPlatformScreen | |
void | resizeMaximizedWindows () |
Convenience method to resize all the maximized and fullscreen windows of this platform screen. | |
Protected Member Functions inherited from QWasmWindowTreeNode | |
virtual void | onParentChanged (QWasmWindowTreeNode *previous, QWasmWindowTreeNode *current, QWasmWindowStack::PositionPreference positionPreference) |
virtual QWasmWindow * | asWasmWindow () |
virtual void | setWindowZOrder (QWasmWindow *window, int z) |
void | onPositionPreferenceChanged (QWasmWindowStack::PositionPreference positionPreference) |
void | setAsActiveNode () |
void | bringToTop () |
void | sendToBottom () |
const QWasmWindowStack & | childStack () const |
QWasmWindow * | activeChild () const |
Protected Attributes inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
Protected Attributes inherited from QPlatformScreen | |
QScopedPointer< QPlatformScreenPrivate > | d_ptr |
Properties inherited from QObject | |
QString | objectName |
the name of this object | |
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) | |
Definition at line 28 of file qwasmscreen.h.
QWasmScreen::QWasmScreen | ( | const emscripten::val & | containerOrCanvas | ) |
Definition at line 29 of file qwasmscreen.cpp.
References QInputDevice::Area, QWasmCSSStyle::createStyleElement(), eventTargetId(), QPointingDevice::Finger, QInputDevice::Hover, QInputDevice::MouseEmulation, QInputDevice::NormalizedPosition, outerScreenId(), QPointingDevice::Pen, QInputDevice::Position, QInputDevice::Pressure, qWarning, QWindowSystemInterface::registerInputDevice(), QInputDevice::Rotation, QInputDevice::Stylus, QInputDevice::TangentialPressure, QInputDevice::TouchScreen, updateQScreenAndCanvasRenderSize(), QInputDevice::XTilt, and QInputDevice::YTilt.
QWasmScreen::~QWasmScreen | ( | ) |
Definition at line 109 of file qwasmscreen.cpp.
References eventTargetId().
QList< QWasmWindow * > QWasmScreen::allWindows | ( | ) |
Definition at line 360 of file qwasmscreen.cpp.
References QList< T >::begin(), child, QWasmWindowTreeNode::childStack(), QList< T >::end(), Qt::FindChildrenRecursively, list, QList< T >::push_back(), window(), and QPlatformScreen::windows().
Referenced by QWasmCompositor::onWindowTreeChanged().
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static |
Definition at line 307 of file qwasmscreen.cpp.
References qWarning, and QPlatformScreen::screen().
Referenced by EMSCRIPTEN_BINDINGS().
Definition at line 245 of file qwasmscreen.cpp.
References QScreen::geometry, qBound(), QPlatformScreen::screen(), and QRect::toRectF().
QWasmCompositor * QWasmScreen::compositor | ( | ) |
Definition at line 138 of file qwasmscreen.cpp.
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finalvirtual |
Implements QWasmWindowTreeNode.
Definition at line 350 of file qwasmscreen.cpp.
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overridevirtual |
Reimplement this function in subclass to return the cursor of the screen.
The default implementation returns \nullptr.
Reimplemented from QPlatformScreen.
Definition at line 212 of file qwasmscreen.cpp.
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inline |
Definition at line 45 of file qwasmscreen.h.
void QWasmScreen::deleteScreen | ( | ) |
Definition at line 120 of file qwasmscreen.cpp.
References QWindowSystemInterface::handleScreenRemoved().
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overridevirtual |
Reimplement in subclass to return current depth of the screen.
Implements QPlatformScreen.
Definition at line 165 of file qwasmscreen.cpp.
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overridevirtual |
Reimplement this function in subclass to return the device pixel ratio for the screen.
This is the ratio between physical pixels and the device-independent pixels of the windowing system. The default implementation returns 1.0.
Reimplemented from QPlatformScreen.
Definition at line 186 of file qwasmscreen.cpp.
References dpr().
Referenced by updateQScreenAndCanvasRenderSize().
emscripten::val QWasmScreen::element | ( | ) | const |
Definition at line 143 of file qwasmscreen.cpp.
Referenced by updateQScreenAndCanvasRenderSize().
QString QWasmScreen::eventTargetId | ( | ) | const |
Definition at line 148 of file qwasmscreen.cpp.
References QString::arg().
Referenced by QWasmScreen(), and ~QWasmScreen().
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overridevirtual |
Reimplement in subclass to return the image format which corresponds to the screen format.
Implements QPlatformScreen.
Definition at line 170 of file qwasmscreen.cpp.
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overridevirtual |
Reimplement in subclass to return the pixel geometry of the screen.
Implements QPlatformScreen.
Definition at line 160 of file qwasmscreen.cpp.
Referenced by mapFromLocal(), QWasmWindow::setGeometry(), setGeometry(), and topLevelAt().
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static |
Definition at line 126 of file qwasmscreen.cpp.
References QPlatformScreen::screen().
Referenced by QWasmIntegration::createPlatformBackingStore(), QWasmIntegration::createPlatformWindow(), and get().
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static |
Definition at line 131 of file qwasmscreen.cpp.
References get(), QScreen::handle(), and QPlatformScreen::screen().
void QWasmScreen::installCanvasResizeObserver | ( | ) |
Definition at line 332 of file qwasmscreen.cpp.
void QWasmScreen::invalidateSize | ( | ) |
Definition at line 252 of file qwasmscreen.cpp.
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overridevirtual |
Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen.
The logical dots per inch metrics are used by Qt to scale the user interface.
The default implementation returns logicalBaseDpi(), which results in a UI scale factor of 1.0.
Reimplemented from QPlatformScreen.
Definition at line 175 of file qwasmscreen.cpp.
Definition at line 240 of file qwasmscreen.cpp.
References geometry(), and QRect::topLeft().
Referenced by QWasmWindow::onNonClientEvent().
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overridevirtual |
Reimplemented from QPlatformScreen.
Definition at line 207 of file qwasmscreen.cpp.
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finalprivatevirtual |
Reimplemented from QWasmWindowTreeNode.
Definition at line 265 of file qwasmscreen.cpp.
References child, QWasmWindowTreeNode::childStack(), NodeInsertion, QWasmWindowTreeNode::onSubtreeChanged(), QObject::parent(), Q_UNUSED, and Qt::WindowStaysOnBottomHint.
QString QWasmScreen::outerScreenId | ( | ) | const |
Definition at line 155 of file qwasmscreen.cpp.
References QString::arg().
Referenced by QWasmScreen(), and updateQScreenAndCanvasRenderSize().
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finalvirtual |
Implements QWasmWindowTreeNode.
Definition at line 355 of file qwasmscreen.cpp.
void QWasmScreen::resizeMaximizedWindows | ( | ) |
Definition at line 217 of file qwasmscreen.cpp.
References QPlatformScreen::resizeMaximizedWindows(), and QPlatformScreen::screen().
Referenced by setGeometry().
Definition at line 257 of file qwasmscreen.cpp.
References QPlatformScreen::availableGeometry(), geometry(), QWindowSystemInterface::handleScreenGeometryChange(), rect, resizeMaximizedWindows(), and QPlatformScreen::screen().
Referenced by updateQScreenAndCanvasRenderSize().
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inline |
Definition at line 42 of file qwasmscreen.h.
Return the given top level window for a given position.
Default implementation retrieves a list of all top level windows and finds the first window which contains point pos
Reimplemented from QPlatformScreen.
Definition at line 229 of file qwasmscreen.cpp.
References begin(), QWasmWindowTreeNode::childStack(), QRect::contains(), QWasmWindowStack::end(), geometry(), and window().
QWindow * QWasmScreen::topWindow | ( | ) | const |
Definition at line 224 of file qwasmscreen.cpp.
References QWasmWindowTreeNode::activeChild(), and QWasmWindow::window().
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inline |
Definition at line 41 of file qwasmscreen.h.
void QWasmScreen::updateQScreenAndCanvasRenderSize | ( | ) |
Definition at line 277 of file qwasmscreen.cpp.
References devicePixelRatio(), element(), QSizeF::height(), outerScreenId(), setGeometry(), and QSizeF::width().
Referenced by QWasmScreen().