如何设置IOConsole的插入符号 [英] How to set the Caret of the IOConsole

问题描述

我在写一个eclipse插件，创建一个新的控制台。请查看我的源代码：

I'm writing an eclipse-plugin which creating a new Console. Please see my source code:

CliConsoleFactory.java

CliConsoleFactory.java

import java.io.IOException;

import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentListener;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.console.ConsolePlugin;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.console.IConsoleConstants;
import org.eclipse.ui.console.IConsoleFactory;
import org.eclipse.ui.console.IConsoleView;
import org.eclipse.ui.console.IOConsoleOutputStream;

public class CliConsoleFactory implements IConsoleFactory {

    private static final String ENTER_KEY = "\r\n";
    private static final String CLI_PROMPT = "CLI> ";
    private IConsoleView m_consoleView = null;

    @Override
    public void openConsole() {

        IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        try {
            m_consoleView = (IConsoleView) page.showView(IConsoleConstants.ID_CONSOLE_VIEW);
        } catch (PartInitException e1) {
            e1.printStackTrace();
        }
        if (m_consoleView == null) {
            return;
        }


        final MyIOConsole myConsole = new MyIOConsole("CLI", null);

        final IDocument document = myConsole.getDocument();
        document.addDocumentListener(new IDocumentListener() {

            @Override
            public void documentChanged(DocumentEvent event) {
                if (ENTER_KEY.equals(event.getText())) {
                    // Print the Prompt
                    writeToConsole(myConsole, CLI_PROMPT);
                }
            }

            @Override
            public void documentAboutToBeChanged(DocumentEvent event) {
            }
        });

        ConsolePlugin.getDefault().getConsoleManager().addConsoles(new IConsole[] { myConsole });
        m_consoleView.display(myConsole);
        writeToConsole(myConsole, CLI_PROMPT);
    }

    private void writeToConsole(final MyIOConsole myConsole, String msg) {
        IOConsoleOutputStream stream = myConsole.newOutputStream();
        stream.setActivateOnWrite(true);
        try {
            stream.write(msg);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (stream != null) {
                try {
                    stream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

$ b b

MyIOConsole.java

MyIOConsole.java

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.console.IOConsole;

public class MyIOConsole extends IOConsole {

    public MyIOConsole(String name, ImageDescriptor imageDescriptor) {
        super(name, imageDescriptor);
    }

}

当我进入一个新的行，提示是CLI>，但光标位置不是okie，它是在行的第一个位置，而不是最后一个位置。我想让光标移动到最后一个位置。谁知道请帮助我。

It works great. When I enter to a new line, the Prompt is "CLI> ", but the Caret position is not okie, it is at the first position of the line instead of the last position. I want to make the Caret move to the last position. Who know please help me.!!!

推荐答案

要获得对插入位置的访问，您需要实现一个控制台查看器。

To gain access to the caret position, you will need to implement a console viewer.

这是我为自定义控制台设置的

This is the setup I have for my custom console,

public class MyConsole extends IOConsole
{
   ....
        @Override
    public IPageBookViewPage createPage(IConsoleView view) {
        return new MyConsolePage(this, view);
    }
}

public class MyConsolePage extends TextConsolePage
{
   ....
       @Override
    protected TextConsoleViewer createViewer(Composite parent) {
        return new MyConsoleViewer(parent, (MyConsole) this.getConsole());
    }
}

public class MyConsoleViewer extends TextConsoleViewer
{
    //This class gives you access to setting the caret position
    //by getting the styled text widget and then using setCaretOffset
}

有多种方式样式文本小部件取决于您覆盖的方法。我还创建了我自己的控制台历史记录类，它记录了插入符号偏移，因为我需要使用向上和向下箭头键浏览以前输入的命令的额外功能。

There are multiple ways of getting the styled text widget depending on which method you are overriding. I also created my own Console history class which kept track of the caret offset since I needed additional functionality of using the up and down arrow keys to navigate through previously entered commands.

实现MyConsoleViewer的最好方法是使用Eclipse的庞大的源代码，设置一个完美的例子。我实际上重用了这个类 org.eclipse.ui.internal.console.IOConsoleViewer 。它甚至显示了设置插入符号的示例。

The best way to implement the MyConsoleViewer is to use Eclipse's vast source code that sets a perfect example. I practically reused all of this class org.eclipse.ui.internal.console.IOConsoleViewer. It even shows examples of setting the caret.

希望这仍然有助于您的问题是前一段时间。

Hope this still helps as your question was a while ago.

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