内容

• 特性
• 方法
• 详细描述

DragEvent QML Type

Provides information about a drag event 更多...

import 语句：

import QtQuick 2.7

• 所有成员列表，包括继承成员

特性

• accepted : bool
• action : enumeration
• colorData : color
• drag.source : Object
• 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 (enumeration action )
• accept ()
• 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:

• Qt.CopyAction Copy the data to the target.
• Qt.MoveAction Move the data from the source to the target.
• Qt.LinkAction Create a link from the source to the target.
• Qt.IgnoreAction Ignore the action (do nothing with the data).

colorData : color

This property holds color data, if any.

This QML property was introduced in Qt 5.2.

drag.source : 对象

This property holds the source of a drag event.

formats : stringlist

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

This QML property was introduced in Qt 5.2.

hasColor : bool

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

This QML property was introduced in Qt 5.2.

hasHtml : bool

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

This QML property was introduced in Qt 5.2.

hasText : bool

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

This QML property was introduced in Qt 5.2.

hasUrls : bool

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

This QML property was introduced in Qt 5.2.

html : string

This property holds html data, if any.

This QML property was introduced in Qt 5.2.

keys : stringlist

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

proposedAction : flags

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

This QML property was introduced in Qt 5.2.

supportedActions : flags

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

text : string

This property holds text data, if any.

This QML property was introduced in Qt 5.2.

urls : urllist

This property holds a list of urls, if any.

This QML property was introduced in Qt 5.2.

x : real

This property holds the x coordinate of a drag event.

y : real

This property holds the y coordinate of a drag event.

方法文档编制

accept ( enumeration action )

Accepts the drag event.

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

accept ()

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 .

This QML method was introduced in Qt 5.2.

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。

This QML method was introduced in Qt 5.5.

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。

This QML method was introduced in Qt 5.2.