Eclipse插件：make Combo来处理Enter键 [英] Eclipse plugin: make Combo to handle Enter key

问题描述

Eclipse插件：如何使Combo处理Enter键按下？
这是输入一些文本后用户可以按Enter键，这将进行一些处理。
同样的处理可以通过ButtonRun点击开始。

Eclipse plugin: how to make Combo to handle Enter key pressing? That is after entering some text user can press Enter, that will case some processing. The same processing can be started by Button "Run" click.

org.eclipse.swt.widgets.Combo

推荐答案

只需为添加侦听器 SWT.KeyUp ，并检查输入的字符是否等于 SWT.CR 。

Just add a Listener for SWT.KeyUp and check if the entered character is equal to SWT.CR.

下面是一些代码：

public static void main(String[] args)
{
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("StackOverflow");
    shell.setLayout(new GridLayout(1, true));

    final Combo combo = new Combo(shell, SWT.NONE);

    combo.addListener(SWT.KeyUp, new Listener()
    {
        @Override
        public void handleEvent(Event arg0)
        {
            if(arg0.character == SWT.CR)
                MessageDialog.openInformation(shell, "Input", "You entered: " + combo.getText());
        }
    });

    shell.pack();
    shell.open();
    while (!shell.isDisposed())
    {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

看起来像这样：

>

在用户按下Enter键时显示此对话框：

And will show this dialog when the user presses enter:

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