内容

• 公共类型
• 特性
• 公共函数
• 公共槽
• 信号
• 静态公共成员
• 详细描述

QWaylandSurface Class

The QWaylandSurface class represents a rectangular area on an output device. 更多...

头：	#include <QWaylandSurface>
CMake:	find_package(Qt6 COMPONENTS Waylandcompositor REQUIRED) target_link_libraries(mytarget PRIVATE Qt6::Waylandcompositor)
qmake:	QT += waylandcompositor
Since:	Qt 5.8
实例化：	WaylandSurface
继承：	QWaylandObject

• 所有成员列表，包括继承成员

公共类型

enum	Origin { OriginTopLeft, OriginBottomLeft }

特性

bufferScale : const int bufferSize : const QSize client : QWaylandClient* const contentOrientation : const Qt::ScreenOrientation cursorSurface : bool

destinationSize : const QSize hasContent : const bool inhibitsIdle : const bool origin : const QWaylandSurface::Origin sourceGeometry : const QRectF

公共函数

	QWaylandSurface (QWaylandCompositor * compositor , QWaylandClient * client , uint id , int version )
	QWaylandSurface ()
virtual	~QWaylandSurface () override
int	bufferScale () const
QSize	bufferSize () const
QWaylandClient *	client () const
QWaylandCompositor *	compositor () const
Qt::ScreenOrientation	contentOrientation () const
QSize	destinationSize () const
void	destroy ()
void	frameStarted ()
bool	hasContent () const
bool	inhibitsIdle () const
void	initialize (QWaylandCompositor * compositor , QWaylandClient * client , uint id , int version )
bool	inputRegionContains (const QPoint & p ) const
bool	inputRegionContains (const QPointF & position ) const
bool	isCursorSurface () const
bool	isDestroyed () const
bool	isInitialized () const
void	markAsCursorSurface (bool cursorSurface )
QWaylandSurface::Origin	origin () const
QWaylandView *	primaryView () const
struct wl_resource *	resource () const
void	sendFrameCallbacks ()
void	setPrimaryView (QWaylandView * view )
bool	setRole (QWaylandSurfaceRole * role , wl_resource * errorResource , uint32_t errorCode )
QRectF	sourceGeometry () const
QList<QWaylandView *>	views () const
::wl_client *	waylandClient () const

公共槽

void	updateSelection ()

信号

void	bufferScaleChanged ()
void	bufferSizeChanged ()
void	childAdded (QWaylandSurface * child )
void	contentOrientationChanged ()
void	cursorSurfaceChanged ()
void	destinationSizeChanged ()
void	dragStarted (QWaylandDrag * drag )
void	hasContentChanged ()
void	inhibitsIdleChanged ()
void	originChanged ()
void	sourceGeometryChanged ()
void	surfaceDestroyed ()

静态公共成员

QWaylandSurface *

fromResource (::wl_resource * resource )

详细描述

This class encapsulates a rectangular area of pixels that is displayed on an output device. It corresponds to the interface wl_surface in the Wayland protocol.

成员类型文档编制

enum QWaylandSurface:: Origin

This enum type is used to specify the origin of a QWaylandSurface 's buffer.

常量	值	描述
QWaylandSurface::OriginTopLeft	0	The origin is the top left corner of the buffer.
QWaylandSurface::OriginBottomLeft	1	The origin is the bottom left corner of the buffer.

特性文档编制

[read-only] bufferScale : const int

此特性保持 QWaylandSurface 's buffer scale. The buffer scale lets a client supply higher resolution buffer data for use on high resolution outputs.

访问函数：

int	bufferScale () const

通知程序信号：

void	bufferScaleChanged ()

[read-only] bufferSize : const QSize

This property holds the size of the current buffer of this QWaylandSurface in pixels, not in surface coordinates.

For the size in surface coordinates, use destinationSize 代替。

访问函数：

QSize

bufferSize () const

通知程序信号：

void	bufferSizeChanged ()

另请参阅 destinationSize and bufferScale .

[read-only] client : QWaylandClient * const

This property holds the client using this QWaylandSurface .

访问函数：

QWaylandClient *

client () const

[read-only] contentOrientation : const Qt::ScreenOrientation

This property holds the orientation of the QWaylandSurface 's contents.

访问函数：

Qt::ScreenOrientation

contentOrientation () const

通知程序信号：

void	contentOrientationChanged ()

另请参阅 QWaylandOutput::transform .

cursorSurface : bool

This property holds whether the QWaylandSurface is a cursor surface.

访问函数：

bool	isCursorSurface () const
void	markAsCursorSurface (bool cursorSurface )

通知程序信号：

void	cursorSurfaceChanged ()

[read-only, since 5.13] destinationSize : const QSize

This property holds the size of this WaylandSurface in surface coordinates.

该特性在 Qt 5.13 引入。

访问函数：

QSize

destinationSize () const

通知程序信号：

void	destinationSizeChanged ()

另请参阅 bufferScale and bufferSize .

[read-only] hasContent : const bool

This property holds whether the QWaylandSurface has content.

访问函数：

bool	hasContent () const

通知程序信号：

void	hasContentChanged ()

[read-only, since 5.14] inhibitsIdle : const bool

This property holds whether this surface is intended to inhibit the idle behavior of the compositor such as screen blanking, locking and screen saving.

该特性在 Qt 5.14 引入。

访问函数：

bool	inhibitsIdle () const

通知程序信号：

void	inhibitsIdleChanged ()

另请参阅 QWaylandIdleInhibitManagerV1 .

[read-only] origin : const QWaylandSurface::Origin

This property holds the origin of the QWaylandSurface 's buffer, or QWaylandSurface::OriginTopLeft if the surface has no buffer.

访问函数：

QWaylandSurface::Origin

origin () const

通知程序信号：

void	originChanged ()

[read-only, since 5.13] sourceGeometry : const QRectF

This property describes the portion of the attached QWaylandBuffer that should be drawn on the screen. The coordinates are from the corner of the buffer and are scaled by bufferScale .

该特性在 Qt 5.13 引入。

访问函数：

QRectF

sourceGeometry () const

通知程序信号：

void	sourceGeometryChanged ()

另请参阅 bufferScale , bufferSize ，和 destinationSize .

成员函数文档编制

QWaylandSurface:: QWaylandSurface ( QWaylandCompositor * compositor , QWaylandClient * client , uint id , int version )

Constructs and initializes a QWaylandSurface for the given compositor and client ，和采用给定 id and version .

QWaylandSurface:: QWaylandSurface ()

Constructs a an uninitialized QWaylandSurface.

[signal] void QWaylandSurface:: childAdded ( QWaylandSurface * child )

This signal is emitted when a wl_subsurface, child , has been added to the surface.

[signal] void QWaylandSurface:: dragStarted ( QWaylandDrag * drag )

This signal is emitted when a drag has started from this surface.

[signal] void QWaylandSurface:: surfaceDestroyed ()

This signal is emitted when the corresponing wl_surface is destroyed.

[slot] void QWaylandSurface:: updateSelection ()

Updates the surface with the compositor's retained clipboard selection. Although this is done automatically when the surface receives keyboard focus, this function is useful for updating clients which do not have keyboard focus.

[override virtual] QWaylandSurface:: ~QWaylandSurface ()

销毁 QWaylandSurface .

QWaylandCompositor *QWaylandSurface:: compositor () const

Returns the compositor for this QWaylandSurface .

[invokable] void QWaylandSurface:: destroy ()

销毁 QWaylandSurface .

注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .

[invokable] void QWaylandSurface:: frameStarted ()

Prepares all frame callbacks for sending.

注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .

[static] QWaylandSurface *QWaylandSurface:: fromResource ( ::wl_resource * resource )

返回 QWaylandSurface corresponding to the Wayland resource resource .

[invokable] void QWaylandSurface:: initialize ( QWaylandCompositor * compositor , QWaylandClient * client , uint id , int version )

初始化 QWaylandSurface 采用给定 compositor and client ，和采用给定 id and version .

注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .

bool QWaylandSurface:: inputRegionContains (const QPoint & p ) const

返回 true 若 QWaylandSurface 's input region contains the point p . Otherwise returns false .

[since 5.14] bool QWaylandSurface:: inputRegionContains (const QPointF & position ) const

返回 true 若 QWaylandSurface 's input region contains the point position . Otherwise returns false .

该函数在 Qt 5.14 引入。

[invokable] bool QWaylandSurface:: isDestroyed () const

返回 true 若 QWaylandSurface has been destroyed. Otherwise returns false.

注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .

bool QWaylandSurface:: isInitialized () const

返回 true 若 QWaylandSurface has been initialized.

QWaylandView *QWaylandSurface:: primaryView () const

Returns this QWaylandSurface 's primary view.

另请参阅 QWaylandView::advance () 和 QWaylandSurface::setPrimaryView ().

struct wl_resource *QWaylandSurface:: resource () const

Returns the Wayland resource corresponding to this QWaylandSurface .

[invokable] void QWaylandSurface:: sendFrameCallbacks ()

Sends pending frame callbacks.

注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .

void QWaylandSurface:: setPrimaryView ( QWaylandView * view )

设置此 QWaylandSurface 's primary view to view , in case there are multiple views of this surface. The primary view is the view that governs the client's refresh rate. It takes care of discarding buffer references when QWaylandView::advance () is called. See the documentation for QWaylandView::advance () 了解更多细节。

In shell surface integrations, such as QWaylandWlShellIntegration and QWaylandXdgShellV5Integration, maximize and fullscreen requests from the client will only have an effect if the integration has the primary view of the surface.

另请参阅 primaryView () 和 QWaylandView::advance ().

bool QWaylandSurface:: setRole ( QWaylandSurfaceRole * role , wl_resource * errorResource , uint32_t errorCode )

设置 role on the surface. A role defines how a surface will be mapped on screen; without a role a surface is supposed to be hidden. Only one role can be set on a surface, at all times. Although setting the same role many times is allowed, attempting to change the role of a surface will trigger a protocol error to the errorResource and send an errorCode to the client.

Returns true if a role can be assigned; false otherwise.

QList < QWaylandView *> QWaylandSurface:: views () const

Returns the views for this QWaylandSurface .

::wl_client *QWaylandSurface:: waylandClient () const

保持 wl_client using this QWaylandSurface .