src/org/objectweb/cjdbc/console/gui/dnd/listeners/AbstractGuiDropListener.java

説明を見る。

package org.objectweb.cjdbc.console.gui.dnd.listeners;

import java.awt.Cursor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragGestureRecognizer;
import java.awt.dnd.DragSourceContext;
import java.awt.dnd.DragSourceDragEvent;
import java.awt.dnd.DragSourceDropEvent;
import java.awt.dnd.DragSourceEvent;
import java.awt.dnd.DragSourceListener;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

import org.objectweb.cjdbc.console.gui.CjdbcGui;
import org.objectweb.cjdbc.console.gui.constants.GuiConstants;

public abstract class AbstractGuiDropListener implements DropTargetListener, // For
    // processing
    // drop
    // target
    // events
    DragSourceListener, // For processing drag source events
    MouseMotionListener, // For processing mouse drags
    MouseListener, // For processing mouse clicks
    DragGestureListener // For recognizing the start of drags
{

  CjdbcGui              gui;
  DragGestureRecognizer dgr;

  public void dragGestureRecognized(DragGestureEvent e)
  {
    //System.out.println("Gesture recognized");
    if(dgr!=null)
    {
      dgr.resetRecognizer();
    }
    dgr = e.getSourceAsDragGestureRecognizer();
    Transferable transfer = (Transferable) e.getComponent();
    
    try
    {
      e.getDragSource().startDrag(e, GuiConstants.customCursor, transfer, this);
    }
    catch (Exception error)
    {
      System.out.println("Got error while dragging resetting listener...");
      dgr.resetRecognizer();
      e.getDragSource().startDrag(e, GuiConstants.customCursor, transfer, this);
    }
  }

  public AbstractGuiDropListener(CjdbcGui gui)
  {
    this.gui = gui;
  }

  public void dragEnter(DropTargetDragEvent dtde)
  {
    //System.out.println("Drag enter target");
  }

  public void dragExit(DropTargetEvent dte)
  {
    //System.out.println("Drag exit target");
  }

  public void dragOver(DropTargetDragEvent dtde)
  {
    //System.out.println("Drag over target");
  }

  public void dropActionChanged(DropTargetDragEvent dtde)
  {
    //System.out.println("Drop action changed target");
  }

  public void dragDropEnd(DragSourceDropEvent dsde)
  {
    //System.out.println("Drag drop end source");
    dgr.resetRecognizer();
    dgr = null;
    
    DragSourceContext dsc = dsde.getDragSourceContext();
    dsc.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
    gui.repaint();
    //gui.publicActionRefreshCursorShape();
  }

  public void dragEnter(DragSourceDragEvent dsde)
  {
    //System.out.println("Drag enter source");
  }

  public void dragExit(DragSourceEvent dse)
  {
    //System.out.println("Drag exit source");
  }

  public void dragOver(DragSourceDragEvent dsde)
  {
    //System.out.println("Drag over source");
  }

  public void dropActionChanged(DragSourceDragEvent dsde)
  {
    //System.out.println("Drop action changed source");
  }

  public void mouseDragged(MouseEvent e)
  {

  }

  public void mouseMoved(MouseEvent e)
  {

  }

  public void mouseClicked(MouseEvent e)
  {

  }

  public void mouseEntered(MouseEvent e)
  {

  }

  public void mouseExited(MouseEvent e)
  {

  }

  public void mousePressed(MouseEvent e)
  {
    
  }

  public void mouseReleased(MouseEvent e)
  {

  }
}

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