WaylandSurface QML Type

Represents a rectangular area on an output device. More...

Import Statement:	import QtWayland.Compositor 1.0
Since:	Qt 5.8

• List of all members, including inherited members

Properties

• bufferScale : size
• bufferSize : size
• client : WaylandClient
• contentOrientation : enum
• cursorSurface : bool
• destinationSize : size
• hasContent : bool
• inhibitsIdle : bool
• origin : enum
• sourceGeometry : rect
• useTextureAlpha : bool

Signals

• childAdded(WaylandSurface child)
• void dragStarted(WaylandDrag drag)
• surfaceDestroyed()

Methods

• void destroy()
• void initialize(WaylandCompositor compositor, WaylandClient client, int id, int version)
• bool isDestroyed()

Detailed Description

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

Property Documentation

bufferScale : size

This property holds the WaylandSurface's buffer scale. The buffer scale lets a client supply higher resolution buffer data for use on high resolution outputs.

bufferSize : size

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

For the size in surface coordinates, use destinationSize instead.

See also destinationSize and bufferScale.

client : WaylandClient

This property holds the client using this WaylandSurface.

contentOrientation : enum

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

See also WaylandOutput.transform.

cursorSurface : bool

This property holds whether the WaylandSurface is a cursor surface.

[since 5.13] destinationSize : size

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

This property was introduced in Qt 5.13.

See also bufferScale and bufferSize.

hasContent : bool

This property holds whether the WaylandSurface has content.

[since 5.14] inhibitsIdle : 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.

This property was introduced in Qt 5.14.

See also IdleInhibitManagerV1.

origin : enum

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

It can have the following values:

• WaylandSurface.OriginTopLeft The origin is the top left corner of the buffer.
• WaylandSurface.OriginBottomLeft The origin is the bottom left corner of the buffer.

[since 5.13] sourceGeometry : rect

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

This property was introduced in Qt 5.13.

See also bufferScale, bufferSize, and destinationSize.

useTextureAlpha : bool

This property specifies whether the surface should use texture alpha.

Signal Documentation

childAdded(WaylandSurface child)

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

Note: The corresponding handler is onChildAdded.

void dragStarted(WaylandDrag drag)

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

Note: The corresponding handler is onDragStarted.

surfaceDestroyed()

This signal is emitted when the corresponding wl_surface is destroyed.

Note: The corresponding handler is onSurfaceDestroyed.

Method Documentation

void destroy()

Destroys the WaylandSurface.

void initialize(WaylandCompositor compositor, WaylandClient client, int id, int version)

Initializes the WaylandSurface with the given compositor and client, and with the given id and version.

bool isDestroyed()

Returns true if the WaylandSurface has been destroyed. Otherwise returns false.