multipleimage.java

思维导图(Mind Mapping)以放射性思考(Radiant Thinking)为基础的收放自如方式

/*FreeMindget - A Program for creating and viewing Mindmaps
 *Copyright (C) 2000-2001  Joerg Mueller <[e-mail]>
 *See COPYING for Details
 *
 *This program is free software; you can redistribute it and/or
 *modify it under the terms of the GNU General Public License
 *as published by the Free Software Foundation; either version 2
 *of the License, or (at your option) any later version.
 *
 *This program is distributed in the hope that it will be useful,
 *but WITHOUT ANY WARRANTY; without even the implied warranty of
 *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *GNU General Public License for more details.
 *
 *You should have received a copy of the GNU General Public License
 *along with this program; if not, write to the Free Software
 *Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
/*$Id: MultipleImage.java,v 1.1.18.1 2005/02/18 21:17:37 christianfoltin Exp $*/

package freemind.view.mindmapview;

import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.util.Iterator;
import java.util.Vector;

import javax.swing.ImageIcon;

public class MultipleImage extends ImageIcon {
    private Vector mImages = new Vector();
    private double zoomFactor=1;
    private boolean isDirty;
    public MultipleImage(double zoom) 
    { 
        zoomFactor = zoom;
        isDirty = true;
    };

    public int getImageCount() {
        return mImages.size();
    };

    public void addImage(ImageIcon image) 
    { 
        mImages.add(image); 
        setImage(image.getImage());
        isDirty = true;
    };

    public Image getImage()
    {
        if(!isDirty)
            return super.getImage();
        int w = getIconWidth();
        int h = getIconHeight();
        BufferedImage outImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);                
        Graphics2D g = outImage.createGraphics();
        double myX = 0;
        for (Iterator i = mImages.iterator(); i.hasNext();)
        {
            ImageIcon currentIcon = (ImageIcon) i.next();
//             py =  /* center: */  ( myHeight - (int)(currentIcon.getIconHeight()* zoomFactor)) /2;
//            int pheight = (int) (currentIcon.getIconHeight() * zoomFactor);
            double pwidth = (currentIcon.getIconWidth() * zoomFactor);
            AffineTransform inttrans = AffineTransform.getScaleInstance(zoomFactor, zoomFactor);
            g.drawImage(currentIcon.getImage(), inttrans, null);
            g.translate(pwidth, 0);
            myX += pwidth;
        }
        g.dispose();
        setImage(outImage);
        isDirty = false;
        return super.getImage();
    }
    
    public void paintIcon(Component c,
                          Graphics g,
                          int x,
                          int y) 
    { 
        getImage();
        super.paintIcon(c, g, x, y);
    }
//    public void paintIcon(Component c,
//                          Graphics g,
//                          int x,
//                          int y) 
//    { 
//        int myX = x;
//        int myHeight = getIconHeight();
//        for(int i = 0 ; i < mImages.size(); i++) {
//            ImageIcon currentIcon = ((ImageIcon) mImages.get(i));
//            int px,py,pwidth, pheight;
//            px = myX;
//            py = y /* center: */ + ( myHeight - (int)(currentIcon.getIconHeight()* zoomFactor)) /2;
//            pwidth = (int) (currentIcon.getIconWidth() * zoomFactor);
//            pheight = (int) (currentIcon.getIconHeight() * zoomFactor);
//            /* code from ImageIcon.*/
//            if(currentIcon.getImageObserver() == null) {
//                g.drawImage(currentIcon.getImage(), px, py, pwidth, pheight, c);
//            } else {
//                g.drawImage(currentIcon.getImage(), px, py, pwidth, pheight, currentIcon.getImageObserver());
//            }
//            /* end code*/
//            myX += pwidth;
//        }
//    };

    public int getIconWidth() 
    {
        int myX = 0;
        for(int i = 0 ; i < mImages.size(); i++) {
            myX += ((ImageIcon) mImages.get(i)).getIconWidth();
        }
//         System.out.println("width: "+myX);
        return (int)(myX * zoomFactor);
    }

    public int getIconHeight()
    {
        int myY = 0;
        for(int i = 0 ; i < mImages.size(); i++) {
            int otherHeight = ((ImageIcon) mImages.get(i)).getIconHeight();
            if(otherHeight > myY) 
                myY = otherHeight;
        }
//         System.out.println("height: "+myY);
        return (int) (myY * zoomFactor);
    }
        

};