DragEvent QML Type

Provides information about a drag event. 更多...

import 语句：

import QtQuick

所有成员列表，包括继承成员

特性

accepted : bool
action : enumeration
colorData : color
drag.source : QtObject
formats : stringlist
hasColor : bool
hasHtml : bool
hasText : bool
hasUrls : bool
html : string
keys : stringlist
proposedAction : flags
supportedActions : flags
text : string
urls : urllist
x : real
y : real

方法

accept ()
accept (enumeration action )
acceptProposedAction ()
string getDataAsArrayBuffer (string format )
string getDataAsString (string format )

详细描述

The position of the drag event can be obtained from the x and y properties, and the keys property identifies the drag keys of the event source .

The existence of specific drag types can be determined using the hasColor , hasHtml , hasText ，和 hasUrls 特性。

The list of all supplied formats can be determined using the formats 特性。

Specific drag types can be obtained using the colorData , html , text ，和 urls 特性。

A string version of any available mimeType can be obtained using getDataAsString .

特性文档编制

accepted : bool

This property holds whether the drag event was accepted by a handler.

默认值为 true。

action : enumeration

This property holds the action that the source is to perform on an accepted drop.

The drop action may be one of:

常量	描述
`Qt.CopyAction`	将数据拷贝到目标。
`Qt.MoveAction`	将数据从源移到目标。
`Qt.LinkAction`	创建从源到目标的链接。
`Qt.IgnoreAction`	忽略动作 (对数据什么都不做)。

colorData : color [read-only]

This property holds color data, if any.

drag.source : QtObject

This property holds the source of a drag event.

格式 : stringlist [read-only]

This property holds a list of mime type formats contained in the drag data.

hasColor : bool [read-only]

This property holds whether the drag event contains a color item.

hasHtml : bool [read-only]

This property holds whether the drag event contains a html item.

hasText : bool [read-only]

This property holds whether the drag event contains a text item.

hasUrls : bool [read-only]

This property holds whether the drag event contains one or more url items.

html : string [read-only]

This property holds html data, if any.

keys : stringlist [read-only]

This property holds a list of keys identifying the data type or source of a drag event.

proposedAction : flags [read-only]

This property holds the set of actions proposed by the drag source.

supportedActions : flags [read-only]

This property holds the set of actions supported by the drag source.

text : string [read-only]

This property holds text data, if any.

urls : urllist [read-only]

This property holds a list of urls, if any.

x : real [read-only]

This property holds the x coordinate of a drag event.

y : real [read-only]

This property holds the y coordinate of a drag event.

方法文档编制

accept ()

accept ( enumeration action )

Accepts the drag event.

If an action is specified it will overwrite the value of the action 特性。

acceptProposedAction ()

Accepts the drag event with the proposedAction .

string getDataAsArrayBuffer ( string format )

返回数据为给定 format into an ArrayBuffer, which can easily be translated into a QByteArray . format should be one contained in the formats 特性。

string getDataAsString ( string format )

返回数据为给定 format converted to a string. format should be one contained in the formats 特性。