#include <qoffscreencommon.h>

Inheritance diagram for QOffscreenScreen:

Collaboration diagram for QOffscreenScreen:

Public Member Functions
	QOffscreenScreen (const QOffscreenIntegration *integration)

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.

QDpi	logicalBaseDpi () const override
	Reimplement to return the base logical DPI for the platform.

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.

QList< QPlatformScreen * >	virtualSiblings () const override
	Returns a list of all the platform screens that are part of the same virtual desktop.

QPixmap	grabWindow (WId window, int x, int y, int width, int height) const override
	This function is called when Qt needs to be able to grab the content of a window.

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	geometry () const =0
	Reimplement in subclass to return the pixel geometry of the screen.

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 int	depth () const =0
	Reimplement in subclass to return current depth of the screen.

virtual QImage::Format	format () const =0
	Reimplement in subclass to return the image format which corresponds to the screen format.

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	logicalDpi () const
	Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen.

virtual QDpi	logicalBaseDpi () const
	Reimplement to return the base logical DPI for the platform.

virtual qreal	devicePixelRatio () const
	Reimplement this function in subclass to return the device pixel ratio for the screen.

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.

virtual QWindow *	topLevelAt (const QPoint &point) const
	Return the given top level window for a given position.

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	name () 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 QPlatformCursor *	cursor () const
	Reimplement this function in subclass to return the cursor of the 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 Attributes
QString	m_name

QRect	m_geometry

int	m_logicalDpi = 96

int	m_logicalBaseDpi = 96

qreal	m_dpr = 1

QScopedPointer< QPlatformCursor >	m_cursor

const QOffscreenIntegration *	m_integration

Static Public Attributes
static QPlatformWindow *	windowContainingCursor = nullptr

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 }

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)

Protected Member Functions inherited from QPlatformScreen
void	resizeMaximizedWindows ()
	Convenience method to resize all the maximized and fullscreen windows of this platform screen.

Protected Attributes inherited from QPlatformScreen
QScopedPointer< QPlatformScreenPrivate >	d_ptr

Detailed Description

Definition at line 24 of file qoffscreencommon.h.

Constructor & Destructor Documentation

◆ QOffscreenScreen()

QOffscreenScreen::QOffscreenScreen ( const QOffscreenIntegration * integration )

Definition at line 73 of file qoffscreencommon.cpp.

Member Function Documentation

◆ cursor()

QPlatformCursor * QOffscreenScreen::cursor ( ) const

inlineoverridevirtual

Reimplement this function in subclass to return the cursor of the screen.

The default implementation returns \nullptr.

Reimplemented from QPlatformScreen.

Definition at line 36 of file qoffscreencommon.h.

References QScopedPointer< T, Cleanup >::data(), and m_cursor.

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◆ depth()

int QOffscreenScreen::depth ( ) const

inlineoverridevirtual

Reimplement in subclass to return current depth of the screen.

Implements QPlatformScreen.

Definition at line 30 of file qoffscreencommon.h.

◆ devicePixelRatio()

qreal QOffscreenScreen::devicePixelRatio ( ) const

inlineoverridevirtual

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.

See also: QPlatformWindow::devicePixelRatio()

Reimplemented from QPlatformScreen.

Definition at line 34 of file qoffscreencommon.h.

References m_dpr.

◆ format()

QImage::Format QOffscreenScreen::format ( ) const

inlineoverridevirtual

Reimplement in subclass to return the image format which corresponds to the screen format.

Implements QPlatformScreen.

Definition at line 31 of file qoffscreencommon.h.

References QImage::Format_RGB32.

◆ geometry()

QRect QOffscreenScreen::geometry ( ) const

inlineoverridevirtual

Reimplement in subclass to return the pixel geometry of the screen.

Implements QPlatformScreen.

Definition at line 29 of file qoffscreencommon.h.

References m_geometry.

◆ grabWindow()

QPixmap QOffscreenScreen::grabWindow	(	WId	window,
		int	x,
		int	y,
		int	width,
		int	height
	)		const

overridevirtual

This function is called when Qt needs to be able to grab the content of a window.

Returns the content of the window specified with the WId handle within the boundaries of QRect(x,y,width,height).

Reimplemented from QPlatformScreen.

Definition at line 80 of file qoffscreencommon.cpp.

References QOffscreenBackingStore::backingStoreForWinId(), QPainter::drawImage(), QOffscreenBackingStore::grabWindow(), QRect::height(), QImage::isNull(), m_geometry, painter, rect, QOffscreenBackingStore::toImage(), QGuiApplication::topLevelWindows(), QPainter::translate(), and QRect::width().

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◆ logicalBaseDpi()

QDpi QOffscreenScreen::logicalBaseDpi ( ) const

inlineoverridevirtual

Reimplement to return the base logical DPI for the platform.

This DPI value should correspond to a standard-DPI (1x) display. The default implementation returns 96.

QtGui will use this value (together with logicalDpi) to compute the scale factor when high-DPI scaling is enabled, as follows: factor = logicalDPI / baseDPI

Reimplemented from QPlatformScreen.

Definition at line 33 of file qoffscreencommon.h.

References m_logicalBaseDpi.

◆ logicalDpi()

QDpi QOffscreenScreen::logicalDpi ( ) const

inlineoverridevirtual

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.

See also: physicalSize

Reimplemented from QPlatformScreen.

Definition at line 32 of file qoffscreencommon.h.

References m_logicalDpi.

◆ name()

QString QOffscreenScreen::name ( ) const

inlineoverridevirtual

Reimplemented from QPlatformScreen.

Definition at line 35 of file qoffscreencommon.h.

References m_name.

◆ virtualSiblings()

QList< QPlatformScreen * > QOffscreenScreen::virtualSiblings ( ) const

overridevirtual

Returns a list of all the platform screens that are part of the same virtual desktop.

Screens part of the same virtual desktop share a common coordinate system, and windows can be freely moved between them.

Reimplemented from QPlatformScreen.

Definition at line 21 of file qoffscreencommon.cpp.

References QList< T >::append(), m_integration, QPlatformScreen::screen(), and QOffscreenIntegration::screens().

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Member Data Documentation

◆ m_cursor

QScopedPointer<QPlatformCursor> QOffscreenScreen::m_cursor

Definition at line 49 of file qoffscreencommon.h.

Referenced by cursor().

◆ m_dpr

qreal QOffscreenScreen::m_dpr = 1

Definition at line 48 of file qoffscreencommon.h.

Referenced by devicePixelRatio(), and QOffscreenIntegration::setConfiguration().

◆ m_geometry

QRect QOffscreenScreen::m_geometry

Definition at line 45 of file qoffscreencommon.h.

Referenced by geometry(), grabWindow(), and QOffscreenIntegration::setConfiguration().

◆ m_integration

const QOffscreenIntegration* QOffscreenScreen::m_integration

Definition at line 50 of file qoffscreencommon.h.

Referenced by virtualSiblings().

◆ m_logicalBaseDpi

int QOffscreenScreen::m_logicalBaseDpi = 96

Definition at line 47 of file qoffscreencommon.h.

Referenced by logicalBaseDpi(), and QOffscreenIntegration::setConfiguration().

◆ m_logicalDpi

int QOffscreenScreen::m_logicalDpi = 96

Definition at line 46 of file qoffscreencommon.h.

Referenced by logicalDpi(), and QOffscreenIntegration::setConfiguration().

◆ m_name

QString QOffscreenScreen::m_name

Definition at line 44 of file qoffscreencommon.h.

Referenced by name(), and QOffscreenIntegration::setConfiguration().

◆ windowContainingCursor

QT_BEGIN_NAMESPACE QPlatformWindow * QOffscreenScreen::windowContainingCursor = nullptr

static

Definition at line 41 of file qoffscreencommon.h.

Referenced by QOffscreenWindow::~QOffscreenWindow(), and QOffscreenCursor::setPos().

The documentation for this class was generated from the following files:

qtbase/src/plugins/platforms/offscreen/qoffscreencommon.h
qtbase/src/plugins/platforms/offscreen/qoffscreencommon.cpp

Public Member Functions

Public Attributes

Static Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QOffscreenScreen()

Member Function Documentation

◆ cursor()

◆ depth()

◆ devicePixelRatio()

◆ format()

◆ geometry()

◆ grabWindow()

◆ logicalBaseDpi()

◆ logicalDpi()

◆ name()

◆ virtualSiblings()

Member Data Documentation

◆ m_cursor

◆ m_dpr

◆ m_geometry

◆ m_integration

◆ m_logicalBaseDpi

◆ m_logicalDpi

◆ m_name

◆ windowContainingCursor