WaylandQuickItem QML Type

Provides a Qt Quick item that represents a WaylandView . 更多...

import 语句：	import QtWayland.Compositor 1.2
Since:	Qt 5.8
实例化：	QWaylandQuickItem
继承者：	ShellSurfaceItem

所有成员列表，包括继承成员

特性

bufferLocked : bool
compositor : WaylandCompositor
focusOnClick : bool
origin : enum
paintEnabled : bool
subsurfaceHandler : object
surface : WaylandSurface
touchEventsEnabled : bool

信号

void surfaceDestroyed ()

方法

point mapFromSurface (point point )
point mapToSurface (point point )
setPrimary ()

详细描述

Qt Quick-based Wayland compositors can use this type to display a client's contents on an output device. It passes user input to the client.

特性文档编制

bufferLocked : bool

This property holds whether the item's buffer is currently locked. As long as the buffer is locked, it will not be released and returned to the client.

默认为 false。

compositor : WaylandCompositor

This property holds the compositor for the surface rendered by this WaylandQuickItem .

focusOnClick : bool

This property specifies whether the WaylandQuickItem should take focus when it is clicked or touched.

默认为 true .

origin : enum

This property holds the origin of the QWaylandQuickItem .

paintEnabled : bool

Returns true if the item is hidden, though the texture is still updated. As opposed to hiding the item by setting visible to false , setting this property to false will not prevent mouse or keyboard input from reaching item.

subsurfaceHandler : 对象

This property provides a way to override the default subsurface behavior.

By default, Qt will create a new SurfaceItem as a child of this item, and maintain the correct position.

To override the default, assign a handler object to this property. The handler should implement a handleSubsurfaceAdded( WaylandSurface ) function.

ShellSurfaceItem {
    subsurfaceHandler: QtObject {
    function handleSubsurfaceAdded(child) {
      //create custom surface item, and connect the subsurfacePositionChanged signal
    }
}

此特性的默认值为 null .

surface : WaylandSurface

This property holds the surface rendered by this WaylandQuickItem .

touchEventsEnabled : bool

This property holds true if touch events are forwarded to the client surface, false 否则。

信号文档编制

void surfaceDestroyed ()

This signal is emitted when the client has destroyed the wl_surface associated with the WaylandQuickItem . The handler for this signal is expected to either destroy the WaylandQuickItem immediately or start a close animation and then destroy the Item.

If an animation is started, bufferLocked should be set to ensure the item keeps its content until the animation finishes

注意： 相应处理程序是 onSurfaceDestroyed .

另请参阅 bufferLocked .

方法文档编制


[since 5.13]

point mapFromSurface ( point point )

Maps the given point in the Wayland surfaces's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate.

This method was introduced in Qt 5.13.

point mapToSurface ( point point )

Maps the given point in this item's coordinate system to the equivalent point within the Wayland surface's coordinate system, and returns the mapped coordinate.

setPrimary ()

Makes this WaylandQuickItem the primary view for the surface.