xworker.swt.dnd.DropTarget/@Transfer
事物 Transfer(Transfer)

父事物：

DropTarget

描述者：

事物

thing

继承：

Transfer

Transfer provides a mechanism for converting between a java representation of data and a platform specific representation of data and vice versa. It is used in data transfer operations such as drag and drop and clipboard copy/paste.

You should only need to become familiar with this class if you are implementing a Transfer subclass and you are unable to subclass the ByteArrayTransfer class.

label(标签)

name(名称)

type(类型)

可以选择已有的类型也可以输入新的类型。

如果选择已有的类型，那么返回swt定义的类型。如果输入新的类型，那么必须要实现以下方法：

getSupportedTypes

public abstract TransferData[] getSupportedTypes()

Returns a list of the platform specific data types that can be converted using this transfer agent.

Only the data type fields of the TransferData objects are filled in.

 

返回：

a list of the data types that can be converted using this transfer agent

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isSupportedType

public abstract boolean isSupportedType(TransferData transferData)

Returns true if the TransferData data type can be converted using this transfer agent, or false otherwise (including if transferData is null).

 

参数：

transferData - a platform specific description of a data type; only the data type fields of the TransferData object need to be filled in

返回：

true if the transferData data type can be converted using this transfer agent

另外程序会自动调用registerType方法注册新类型，类型的id号放在type字段里。

create

actions(动作)