sharedpanel.java

peeranha42是jxta的 p2p程序核心

package de.uni_bremen.informatik.p2p.plugins.filesharing.gui;

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;

import de.uni_bremen.informatik.p2p.plugins.filesharing.data.FilesharingState;
import de.uni_bremen.informatik.p2p.plugins.filesharing.data.ShareList;
import de.uni_bremen.informatik.p2p.plugins.filesharing.gui.event.SharedEventListener;


/**
 * An object of the class represents the share-userinterface of the filesharing
 * plugin.
 *
 * @author Philipp Hoheisel, Cecile Prigge, Lars Kordes
 */
public class SharedPanel
    extends JPanel {
    /** Table which presents a look on the list of all shares. */
    private JTable table;

    /**
     * Classconstructor.
     *
     * @param actlist Buttoneventlistener of all buttons of the  filesharing
     *        gui.
     */
    public SharedPanel(SharedEventListener actlist) {
    	// set layout and doublebuffer for graphics
    	super(null, true);
    	
        // setting layout
    	GridBagLayout gridbag = new GridBagLayout();
        GridBagConstraints c = new GridBagConstraints();
        setLayout(gridbag);

        JPanel panel = createInputPanel(actlist);
        panel.setPreferredSize(new Dimension(1000, 20));
        c.fill = GridBagConstraints.BOTH;
        c.gridx = 0;
        c.gridy = 0;
        c.weightx = 0;
        c.weighty = 0;
        gridbag.setConstraints(panel, c);
        add(panel);

        table = new JTable(new ShareList(FilesharingState.sharedfiles));
        JScrollPane scroll = new JScrollPane(table);
        scroll.setPreferredSize(new Dimension(10000,10000));
        c.gridx = 0;
        c.gridy = 1;
        c.weightx = 1;
        c.weighty = 1;
        gridbag.setConstraints(scroll, c);
        // add scrollpane to context
        add(scroll);
    }

    /**
     * Returns panel for userinput (e.g. panel with buttons and textfields).
     * 
	 * @param actlist Actionlistener
	 * @return New Panel
	 */
	private JPanel createInputPanel(SharedEventListener actlist) {
		JPanel panel = new JPanel();
		
        // create add-share-button (file)
        JButton addfilebutton = new JButton(P42_resource_reader.getImageIcon("/addfile.gif"));
        addfilebutton.setActionCommand("Add File");
        // tooltip
        addfilebutton.setToolTipText("Press Button to add new shared file");
        // set preferred size
        addfilebutton.setPreferredSize(new Dimension(32, 32));
        // add actionlistener
        addfilebutton.addActionListener(actlist);
        panel.add(addfilebutton);
        
        // create add-share-button (directory)
        JButton adddirbutton = new JButton(P42_resource_reader.getImageIcon("/adddirectory.gif"));
        adddirbutton.setActionCommand("Add Directory");
        // tooltip
        adddirbutton.setToolTipText("Press Button to add shared directory");
        // set preferred size
        adddirbutton.setPreferredSize(new Dimension(32, 32));
        // add actionlistener
        adddirbutton.addActionListener(actlist);
        panel.add(adddirbutton);

        // create remove-share-button
        JButton removebutton = new JButton(P42_resource_reader.getImageIcon("/remove.gif"));
        removebutton.setActionCommand("Remove");
        // tooltip
        removebutton.setToolTipText("Press Button to remove share");
        // set preferred size
        removebutton.setPreferredSize(new Dimension(32, 32));
        // add actionlistener
        removebutton.addActionListener(actlist);
        panel.add(removebutton);
        
        // create remove-share-button
        JButton removeallbutton = new JButton(P42_resource_reader.getImageIcon("/removeall.gif"));
        removeallbutton.setActionCommand("Remove All");
        // tooltip
        removeallbutton.setToolTipText("Press Button to remove all shares");
        // set preferred size
        removeallbutton.setPreferredSize(new Dimension(32, 32));
        // add actionlistener
        removeallbutton.addActionListener(actlist);
        panel.add(removeallbutton);
        
        return panel;
	}

	/**
     * Method returns the table-ui which represents all shares of the
     * filesharingplugin.
     *
     * @return Table-ui which presents all shares of the filesharingplugin.
     */
    public JTable getTable() {
        return table;
    }
}