Re: DND using XML

From:

"Jeff Higgins" <jeff.higgins@THRWHITE.remove-dii-this>

Newsgroups:

comp.lang.java.gui

Date:

Wed, 27 Apr 2011 15:45:01 GMT

Message-ID:

<IcoTj.104$4J1.56@newsfe05.lga>

To: comp.lang.java.gui

steve wrote:

On Sat, 3 May 2008 19:33:49 +0800, Jeff Higgins wrote
(in article <k7YSj.3$YZ4.1@newsfe05.lga>):

http://java.sun.com/docs/books/tutorial/uiswing/dnd/index.html

gosh, did you figure that out all by yourself.

Pretty good tutorial, don't chathink?

"This section has been updated to reflect features and conventions of the
latest release, JDK 6.0, but it is not yet final. We've published this
preliminary version so you can get the most current information now, and
so
you can tell us (please!) about errors, omissions, or improvements we can
make to this tutorial."

so you think the best way forward is to implement code...

Yep.

that is not finalised yet?

So what's holding you up? Oh, ignorance!

moron!

He, he!

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.Action;
import javax.swing.JFrame;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.text.DefaultEditorKit;
import org.apache.batik.util.gui.xmleditor.XMLTextEditor;

public class Launcher {

  public static void main(String[] args) {

    EventQueue.invokeLater(new Runnable() {
      public void run() {
        new GUI();
      }
    });
  }

  public static class GUI {

    JPopupMenu contextMenu;

    public GUI() {

      XMLTextEditor leftEditorPane =
        new XMLTextEditor();
      leftEditorPane.setPreferredSize
      (new Dimension(400, 400));

      XMLTextEditor rightEditorPane =
        new XMLTextEditor();
      rightEditorPane.setPreferredSize
      (new Dimension(400, 400));

      JScrollPane leftScrollPane =
        new JScrollPane(leftEditorPane);
      JScrollPane rightScrollPane =
        new JScrollPane(rightEditorPane);

      JSplitPane splitPane = new JSplitPane();

      splitPane.setRightComponent(rightScrollPane);
      splitPane.setLeftComponent(leftScrollPane);

      JFrame frame = new JFrame("XML DND");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setLocationByPlatform(true);

      frame.add(splitPane);

      View leftView = new View(leftEditorPane);
      @SuppressWarnings("unused")
      View rightView = new View(rightEditorPane);
      leftView.setText(
          "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
          "<jackass>\n" +
            "\t<moron>So easy any moron can do it.</moron>\n" +
            "\t<moron>Well, except maybe you; har har.</moron>\n" +
          "</jackass>");
      frame.pack();
      frame.setVisible(true);
    }
  }

  public static class View{

    XMLTextEditor editorPane;
    JPopupMenu contextMenu;

    public View(XMLTextEditor editorPane) {
      this.editorPane = editorPane;
      createMenu();
      ContextMenuMouseListener contextMenuMouseListener =
        new ContextMenuMouseListener();
      editorPane.addMouseListener(contextMenuMouseListener);
      editorPane.setDragEnabled(true);
    }

    public void setText(String text) {
      editorPane.setText(text);
    }

    private void createMenu() {
      Action a;
      a = editorPane.getActionMap()
      .get(DefaultEditorKit.cutAction);
      a.putValue(Action.NAME, "Cut");

      a = editorPane.getActionMap()
      .get(DefaultEditorKit.copyAction);
      a.putValue(Action.NAME, "Copy");

      a = editorPane.getActionMap()
      .get(DefaultEditorKit.pasteAction);
      a.putValue(Action.NAME, "Paste");

      a = editorPane.getActionMap()
      .get(DefaultEditorKit.selectAllAction);
      a.putValue(Action.NAME, "Select All");

      contextMenu = new JPopupMenu();
      contextMenu.add(editorPane.getActionMap()
          .get(DefaultEditorKit.cutAction));
      contextMenu.add(editorPane.getActionMap()
          .get(DefaultEditorKit.copyAction));
      contextMenu.add(editorPane.getActionMap()
          .get(DefaultEditorKit.pasteAction));
      contextMenu.add(editorPane.getActionMap()
          .get(DefaultEditorKit.selectAllAction));
    }

    class ContextMenuMouseListener
    extends MouseAdapter {
      public void mousePressed(MouseEvent e) {
        if (e.isPopupTrigger()) {
          contextMenu.show(e.getComponent(),
              e.getX(), e.getY());
        }
      }
      public void mouseReleased(MouseEvent e) {
        if (e.isPopupTrigger()) {
          contextMenu.show(e.getComponent(),
              e.getX(), e.getY());
        }
      }
    }
  }
}

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