TreeViewer选择和剪贴板 [英] TreeViewer selections and the Clipboard

问题描述

是否可以在剪贴板中放置多个对象(代表TreeViewer选择)?这是我的剪切代码.

Is it possible to place more than one object (which represent TreeViewer selections) into the clipboard? Here's my Cut code.

static public void Cut(EssentialData dataInst)
{
    IStructuredSelection selection = (IStructuredSelection)dataInst.getTreeViewer().getSelection();

    if(selection == null)
    {
        System.err.println("selection received was null");
        return;
    }

    Object[] objects = selection.toArray();

    //because setContents requires a Transfer object for every object sent
    List<Transfer> typesList = new ArrayList<>();

    for(int i = 0; i < objects.length; i++)
        typesList.add(FileEntryTransfer.getInstance());

    final Clipboard cb = new Clipboard(Display.getCurrent());
    cb.setContents(objects, typesList.toArray(new Transfer[]{}));
    cb.dispose();

    for(int i = 0; i < objects.length; i++)
        dataInst.getFileManager().removeEntry((FileEntry)objects[i]);

    dataInst.getTreeViewer().refresh(false);
}

我要做的是将多个选择(FileEntry的实例)放置到剪贴板中.

What I'm trying to do is place multiple selections, which are instances of FileEntry, into the clipboard.

FileEntryTransfer是我的自定义ByteArrayTransfer类，我也将其用于DND.它运作良好，但我注意到setContents()实际上只向它发送一个FileEntry对象，而不是对象数组(这正是我想要的).

FileEntryTransfer is my custom ByteArrayTransfer class that I also use for DND. It works well, but I noticed that setContents() actually sends it only one FileEntry object as opposed to an array of objects (which is what I want).

有什么想法吗?

[edit]感谢vanaprogeja，我用

[edit]Thanks to vanaprogeja, I sovled it with

cb.setContents(new Object[]{ objects }, new Transfer[] { FileEntryTransfer.getInstance() });

推荐答案

怎么样:

cb.setContents(new Object[]{ objects },
    new Transfer[] { FileEntryTransfer.getInstance() });

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