draw2d中的层到底有什么作用？

�� — Wed, 27 Jun 2007 03:19:00 GMT

draw2d中的层到底有什么作用？

�� 2007-06-27 11:19 发表评论

�� — Wed, 27 Jun 2007 00:46:00 GMT

/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.example.layout;

import java.util.Iterator;

import org.eclipse.draw2d.FreeformLayout;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Point;

/**
* A layout for {@link org.eclipse.draw2d.FreeformFigure FreeformFigures}.
*/
public class FreeformLayout2
extends FreeformLayout
{
int colum;

int width;

public FreeformLayout2(int colum, int width) {

this.colum = colum;
this.width = width;

}

public void layout(IFigure parent) {



// parent.set


System.out.println(parent.getClass().toString());

//parent.getBounds().x=10;
//parent.getBounds().y=20;
  int x = parent.getBounds().x;
  int y = parent.getBounds().y;
  /*
  int ph = parent.getBounds().height;
  int pw = parent.getBounds().width;
  int h = parent.getBounds().height / this.rows;
  int w = parent.getBounds().width / this.colum;*/

  Iterator children = parent.getChildren().iterator();
System.out.println(x+"         "+y);


  IFigure f;

  int cx =x, cy =y;
  int count=0;
  while (children.hasNext()) {
   count++;

   //System.out.println(pw);
   f = (IFigure) children.next();

f.setLocation(new Point(cx, cy));

   f.setSize(width, width);
   cx +=width;
   if (count>=colum) {
    cx = 0;
    cy +=width;
    count=0;
   }

}

�� 2007-06-27 08:46 发表评论

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draw2d中的层到底有什么作用？