imagegrabber.java

来自「JavaExplorer是一个独立于平台的浏览器」· Java 代码 · 共 129 行

/**
  * File and FTP Explorer
  * Copyright 2003
  * BOESCH Vincent
  *
  * 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.
  */
package javaexplorer.util;

import javaexplorer.Launcher;

import javaexplorer.io.reader.*;
import javaexplorer.io.writer.*;

import javaexplorer.model.XFile;

import javaexplorer.ressource.MagicNumber;

import javax.swing.ImageIcon;


/**
 * Classe utilis閑 pour lire et 閏rire les images
 * <p>Title: JExp</p>
 * <p>Description: File, FTP Explorer</p>
 * <p>Copyright: 2003</p>
 * <p>Company: N/A</p>
 * @author BOESCH Vincent
 * @version 4.4
 */
public class ImageGrabber {
    private static ImageGrabber _grabber = new ImageGrabber();
    private Launcher _launcher = null;
    private GIFWriter _gw = new GIFWriter();
    private JPEGWriter _jw = new JPEGWriter();

    /**
     *  Constructeur objet ImageGrabber
     */
    public ImageGrabber() {
    }

    /**
     *  Gets the grabber attribute of the ImageGrabber
     *  class
     *
     *@return    The grabber value
     */
    public static ImageGrabber getGrabber() {
        return _grabber;
    }

    /**
     *  Gets the image attribute of the ImageGrabber
     *  object
     *
     *@param  fileName  Description of the
     *      Parameter
     *@return           The image value
     */
    public ImageIcon getImage(XFile xfile) {
        int type = MagicNumber.getImageType(xfile);
        //On regarde si l'extension du fichier est BMP :
        if (type == MagicNumber.BMP) {
            return new ImageIcon(BMPReader.getImage(xfile.getLocalFile()), xfile.getName());
        } else {
            return new ImageIcon(xfile.getLocalFile().getAbsolutePath(), xfile.getName());
        }
       
    }

    /**
     *@param  img       Description of the
     *      Parameter
     *@param  fileName  Description of the
     *      Parameter
     *@return           Description of the
     *      Return Value
     */
    public boolean putImage(ImageIcon img, String fileName) {
        //Dans tous les cas, les fichiers GIF sont traites par le GIFWriter
        //Jimi ne sait pas encode en gif
        try {
            int type = MagicNumber.getImageType(null, fileName);

            switch (type) {
            case MagicNumber.GIF:
                _gw.writeImage(fileName, img);

                break;

            //Par d閒aut, on 閏rit en JPEG
            case MagicNumber.JPG:default:
                _jw.writeImage(fileName, img);

                break;
            }

            return true;
        } catch (Exception e) {
            javaexplorer.util.Log.addError(e);

            return false;
        }
    }

    /**
     *  Sets the launcher attribute of the
     *  ImageGrabber object
     *
     *@param  launcher  The new launcher value
     */
    public void setLauncher(Launcher launcher) {
        _launcher = launcher;
    }
}