statuscanvas.java

一个JAVA做的FTP软件,带源码的,可以很好的进行二次开发,,并带有详细说明文件的

/*
 * 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 net.sf.jftp.gui;

import net.sf.jftp.config.Settings;
import net.sf.jftp.gui.framework.*;
import net.sf.jftp.*;

import java.awt.*;

import javax.swing.*;


public class StatusCanvas extends JPanel
{
    JLabel host = new JLabel("");
    JLabel separator = new JLabel("   ");
    JLabel text = new JLabel(Settings.greeting);
    String drawText = "";
    int pos = 0;
    Image image;
    Graphics offg;
    boolean slide = false;
    int interval = 3;

    public StatusCanvas()
    {
        setMinimumSize(new Dimension(200, 25));
        setPreferredSize(new Dimension(320, 25));
        setLayout(null);

        //setLayout(new FlowLayout(FlowLayout.LEFT));
        //add(host);
        //add(separator);
        //add(text);
        setVisible(true);
    }
    
    public void setInterval(int x)
    {
    	interval = x;
    }

    public void setText(String msg)
    {
        if(false)
        {
            text.setText(msg);
        }
        else
        {
            text.setText("");
            drawText = msg;
	    slide = false;

            if(AppMenuBar.fadeMenu.getState())
            {
                for(pos = 30; pos > 0; pos -= 1)
                {
                    paintImmediately(0, 0, getSize().width, getSize().height);
                    net.sf.jftp.util.LocalIO.pause(interval);
                }
            }
            else
            {
                repaint();
            }
        }

        validate();
    }
    
    public void scrollText(String msg)
    {
        if(false)
        {
            text.setText(msg);
        }
        else
        {
            text.setText("");
            drawText = msg;
	    slide = true;
	    
            if(AppMenuBar.fadeMenu.getState())
            {
                for(pos = 700; pos > (msg.length()*-6); pos -= 1)
                {
                    //paintImmediately(0, 0, getSize().width, getSize().height);
		    repaint();
                    net.sf.jftp.util.LocalIO.pause(interval);
		    //JFtp.statusP.jftp.validate();
                }
            }
            else
            {
                repaint();
            }
        }

        validate();
    }

    public void setHost(String h)
    {
        host.setText(h);
        validate();
    }

    public String getHost()
    {
        return host.getText();
    }

    public void paintComponent(Graphics g)
    {
        if(image == null)
        {
            image = createImage(getWidth(), getHeight());
        }

        if(offg == null)
        {
            offg = image.getGraphics();
        }

        offg.setColor(GUIDefaults.light);
        offg.setFont(GUIDefaults.status);
        offg.fillRect(0, 0, getSize().width, getSize().height);
        offg.setColor(new Color(125, 125, 175));
	
        if(!slide) 
	{
		offg.drawString(drawText, 10, 15 + pos);
	}
	else
	{
		offg.drawString(drawText, 10+pos, 15);
	}
	
        offg.setColor(GUIDefaults.front);
        offg.drawRect(0, 0, getSize().width - 1, getSize().height - 1);
        offg.drawRect(0, 0, getSize().width - 2, getSize().height - 2);
        g.drawImage(image, 0, 0, this);
    }
}