QWaylandSurface Class

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

頭: #include <QWaylandSurface>
qmake: QT += waylandcompositor
Since: Qt 5.8
實例化: WaylandSurface
繼承: QWaylandObject

該類在 Qt 5.8 引入。

公共類型

enum Origin { OriginTopLeft, OriginBottomLeft }

特性

公共函數

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 ()

信號

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 ()

靜態公共成員

QWaylandSurface * fromResource (::wl_resource * resource )

詳細描述

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.

成員類型文檔編製

enum QWaylandSurface:: Origin

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

常量 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.

特性文檔編製

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.

訪問函數:

int bufferScale () const

通知程序信號:

void bufferScaleChanged ()

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。

訪問函數:

QSize bufferSize () const

通知程序信號:

void bufferSizeChanged ()

另請參閱 destinationSize and bufferScale .

client : QWaylandClient * const

This property holds the client using this QWaylandSurface .

訪問函數:

QWaylandClient * client () const

contentOrientation : const Qt::ScreenOrientation

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

訪問函數:

Qt::ScreenOrientation contentOrientation () const

通知程序信號:

void contentOrientationChanged ()

另請參閱 QWaylandOutput::transform .

cursorSurface : bool

This property holds whether the QWaylandSurface is a cursor surface.

訪問函數:

bool isCursorSurface () const
void markAsCursorSurface (bool cursorSurface )

通知程序信號:

void cursorSurfaceChanged ()

destinationSize : const QSize

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

該特性在 Qt 5.13 引入。

訪問函數:

QSize destinationSize () const

通知程序信號:

void destinationSizeChanged ()

另請參閱 bufferScale and bufferSize .

hasContent : const bool

This property holds whether the QWaylandSurface has content.

訪問函數:

bool hasContent () const

通知程序信號:

void hasContentChanged ()

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.

該特性在 Qt 5.14 引入。

訪問函數:

bool inhibitsIdle () const

通知程序信號:

void inhibitsIdleChanged ()

另請參閱 QWaylandIdleInhibitManagerV1 .

origin : const QWaylandSurface::Origin

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

訪問函數:

QWaylandSurface::Origin origin () const

通知程序信號:

void originChanged ()

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 .

該特性在 Qt 5.13 引入。

訪問函數:

QRectF sourceGeometry () const

通知程序信號:

void sourceGeometryChanged ()

另請參閱 bufferScale , bufferSize ,和 destinationSize .

成員函數文檔編製

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

Constructs and initializes a QWaylandSurface for the given compositor and client ,和采用給定 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 ()

銷毀 QWaylandSurface .

QWaylandCompositor *QWaylandSurface:: compositor () const

Returns the compositor for this QWaylandSurface .

void QWaylandSurface:: destroy ()

銷毀 QWaylandSurface .

注意: 此函數可以被援引,通過元對象係統和從 QML。見 Q_INVOKABLE .

void QWaylandSurface:: frameStarted ()

Prepares all frame callbacks for sending.

注意: 此函數可以被援引,通過元對象係統和從 QML。見 Q_INVOKABLE .

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

返迴 QWaylandSurface corresponding to the Wayland resource resource .

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

初始化 QWaylandSurface 采用給定 compositor and client ,和采用給定 id and version .

注意: 此函數可以被援引,通過元對象係統和從 QML。見 Q_INVOKABLE .

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

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

bool QWaylandSurface:: inputRegionContains (const QPointF & position ) const

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

該函數在 Qt 5.14 引入。

bool QWaylandSurface:: isDestroyed () const

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

注意: 此函數可以被援引,通過元對象係統和從 QML。見 Q_INVOKABLE .

bool QWaylandSurface:: isInitialized () const

返迴 true 若 QWaylandSurface has been initialized.

QWaylandView *QWaylandSurface:: primaryView () const

Returns this QWaylandSurface 's primary view.

另請參閱 QWaylandView::advance () 和 QWaylandSurface::setPrimaryView ().

struct wl_resource *QWaylandSurface:: resource () const

Returns the Wayland resource corresponding to this QWaylandSurface .

void QWaylandSurface:: sendFrameCallbacks ()

Sends pending frame callbacks.

注意: 此函數可以被援引,通過元對象係統和從 QML。見 Q_INVOKABLE .

void QWaylandSurface:: setPrimaryView ( QWaylandView * view )

設置此 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 () 瞭解更多細節。

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.

另請參閱 primaryView () 和 QWaylandView::advance ().

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

設置 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 .