#include <qwindowsysteminterface_p.h>

Collaboration diagram for QWindowSystemInterfacePrivate:

Classes
class	ApplicationStateChangedEvent
class	CloseEvent
class	ContextMenuEvent
class	EnterEvent
class	ExposeEvent
class	FileOpenEvent
class	FlushEventsEvent
class	FocusWindowEvent
class	GeometryChangeEvent
class	GestureEvent
class	InputEvent
class	KeyEvent
class	LeaveEvent
class	MouseEvent
class	PaintEvent
class	PlatformPanelEvent
class	PointerEvent
class	SafeAreaMarginsChangedEvent
class	ScreenGeometryEvent
class	ScreenLogicalDotsPerInchEvent
class	ScreenOrientationEvent
class	ScreenRefreshRateEvent
class	TabletEnterProximityEvent
class	TabletEvent
class	TabletLeaveProximityEvent
class	ThemeChangeEvent
class	TouchEvent
class	UserEvent
class	WheelEvent
class	WindowDevicePixelRatioChangedEvent
class	WindowScreenChangedEvent
class	WindowStateChangedEvent
class	WindowSystemEvent
class	WindowSystemEventList

Public Types

enum EventType {
UserInputEvent = 0x100 , Close = UserInputEvent | 0x01 , GeometryChange = 0x02 , Enter = UserInputEvent | 0x03 ,
Leave = UserInputEvent | 0x04 , FocusWindow = 0x05 , WindowStateChanged = 0x06 , Mouse = UserInputEvent | 0x07 ,
Wheel = UserInputEvent | 0x09 , Key = UserInputEvent | 0x0a , Touch = UserInputEvent | 0x0b , ScreenOrientation = 0x0c ,
ScreenGeometry = 0x0d , ScreenAvailableGeometry = 0x0e , ScreenLogicalDotsPerInch = 0x0f , ScreenRefreshRate = 0x10 ,
ThemeChange = 0x11 , Expose = 0x12 , FileOpen = UserInputEvent | 0x13 , Tablet = UserInputEvent | 0x14 ,
TabletEnterProximity = UserInputEvent | 0x15 , TabletLeaveProximity = UserInputEvent | 0x16 , PlatformPanel = UserInputEvent | 0x17 , ContextMenu = UserInputEvent | 0x18 ,
EnterWhatsThisMode = UserInputEvent | 0x19 , Gesture = UserInputEvent | 0x1a , ApplicationStateChanged = 0x19 , FlushEvents = 0x20 ,
WindowScreenChanged = 0x21 , SafeAreaMarginsChanged = 0x22 , ApplicationTermination = 0x23 , Paint = 0x24 ,
WindowDevicePixelRatioChanged = 0x25
}

Static Public Member Functions
static qsizetype	windowSystemEventsQueued ()
static bool	nonUserInputEventsQueued ()
static WindowSystemEvent *	getWindowSystemEvent ()
static WindowSystemEvent *	getNonUserInputWindowSystemEvent ()
static WindowSystemEvent *	peekWindowSystemEvent (EventType t)
static void	removeWindowSystemEvent (WindowSystemEvent *event)
static QList< QEventPoint >	fromNativeTouchPoints (const QList< QWindowSystemInterface::TouchPoint > &points, const QWindow window, QEvent::Type type=nullptr)
template<class EventPointList>
static QList< QWindowSystemInterface::TouchPoint >	toNativeTouchPoints (const EventPointList &pointList, const QWindow *window)
static QWindowSystemInterface::TouchPoint	toNativeTouchPoint (const QEventPoint &point, const QWindow *window)
static void	installWindowSystemEventHandler (QWindowSystemEventHandler *handler)
static void	removeWindowSystemEventhandler (QWindowSystemEventHandler *handler)

Static Public Attributes
static WindowSystemEventList	windowSystemEventQueue
static QElapsedTimer	eventTime
static bool	synchronousWindowSystemEvents = false
static bool	platformFiltersEvents
static QWaitCondition	eventsFlushed
static QMutex	flushEventMutex
static QAtomicInt	eventAccepted
static QWindowSystemEventHandler *	eventHandler

Detailed Description

Definition at line 35 of file qwindowsysteminterface_p.h.

Member Enumeration Documentation

◆ EventType

enum QWindowSystemInterfacePrivate::EventType

Enumerator
UserInputEvent
Close
GeometryChange
Enter
Leave
FocusWindow
WindowStateChanged
Mouse
Wheel
Key
Touch
ScreenOrientation
ScreenGeometry
ScreenAvailableGeometry
ScreenLogicalDotsPerInch
ScreenRefreshRate
ThemeChange
Expose
FileOpen
Tablet
TabletEnterProximity
TabletLeaveProximity
PlatformPanel
ContextMenu
EnterWhatsThisMode
Gesture
ApplicationStateChanged
FlushEvents
WindowScreenChanged
SafeAreaMarginsChanged
ApplicationTermination
Paint
WindowDevicePixelRatioChanged

Definition at line 37 of file qwindowsysteminterface_p.h.

Member Function Documentation

◆ fromNativeTouchPoints()

QList< QEventPoint > QWindowSystemInterfacePrivate::fromNativeTouchPoints	(	const QList< QWindowSystemInterface::TouchPoint > &	points,
		const QWindow *	window,
		QEvent::Type *	type = nullptr )

static

Convert a list of \l QWindowSystemInterface::TouchPoint points to a list of temporary QEventPoint instances, scaled (but not localized) for delivery to the given window.

This is called from QWindowSystemInterface::handleTouchEvent(): that is too early to update the QEventPoint instances in QPointingDevice, because we want those to hold "current" state from the applcation's point of view. The QWindowSystemInterfacePrivate::TouchEvent, to which the returned touchpoints will "belong", might go through the queue before being processed; the application doesn't see the equivalent QTouchEvent until later on. Therefore the responsibility to update the QEventPoint instances in QPointingDevice is in QGuiApplication, not here.

QGuiApplicationPrivate::processMouseEvent() also calls this function when it synthesizes a touch event from a mouse event. But that's outside the normal use case.

It might be better if we change all the platform plugins to create temporary instances of QEventPoint directly, and remove QWindowSystemInterface::TouchPoint completely. Then we will no longer need this function either. But that's only possible as long as QEventPoint remains a Q_GADGET, not a QObject, so that it continues to be small and suitable for temporary stack allocation. QEventPoint is a little bigger than QWindowSystemInterface::TouchPoint, though.

Definition at line 614 of file qwindowsysteminterface.cpp.

◆ getNonUserInputWindowSystemEvent()

QWindowSystemInterfacePrivate::WindowSystemEvent * QWindowSystemInterfacePrivate::getNonUserInputWindowSystemEvent ( )

static

Definition at line 156 of file qwindowsysteminterface.cpp.

◆ getWindowSystemEvent()

QWindowSystemInterfacePrivate::WindowSystemEvent * QWindowSystemInterfacePrivate::getWindowSystemEvent ( )

static

Definition at line 151 of file qwindowsysteminterface.cpp.

◆ installWindowSystemEventHandler()

void QWindowSystemInterfacePrivate::installWindowSystemEventHandler ( QWindowSystemEventHandler * handler )

static

Definition at line 171 of file qwindowsysteminterface.cpp.

◆ nonUserInputEventsQueued()

bool QWindowSystemInterfacePrivate::nonUserInputEventsQueued ( )

static

Definition at line 146 of file qwindowsysteminterface.cpp.

◆ peekWindowSystemEvent()

QWindowSystemInterfacePrivate::WindowSystemEvent * QWindowSystemInterfacePrivate::peekWindowSystemEvent ( EventType t )

static

Definition at line 161 of file qwindowsysteminterface.cpp.

◆ removeWindowSystemEvent()

void QWindowSystemInterfacePrivate::removeWindowSystemEvent ( WindowSystemEvent * event )

static

Definition at line 166 of file qwindowsysteminterface.cpp.

◆ removeWindowSystemEventhandler()

void QWindowSystemInterfacePrivate::removeWindowSystemEventhandler ( QWindowSystemEventHandler * handler )

static

Definition at line 177 of file qwindowsysteminterface.cpp.

◆ toNativeTouchPoint()

QWindowSystemInterface::TouchPoint QWindowSystemInterfacePrivate::toNativeTouchPoint	(	const QEventPoint &	point,
		const QWindow *	window )

static

Definition at line 654 of file qwindowsysteminterface.cpp.

◆ toNativeTouchPoints()

template<class EventPointList>

QList< QWindowSystemInterface::TouchPoint > QWindowSystemInterfacePrivate::toNativeTouchPoints	(	const EventPointList &	pointList,
		const QWindow *	window )