membergroup.java

用JAVA编写的聊天程序可以面向点对点的连接,有好看的表情

//package psn.nicholas.swing;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.GridLayout;

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

public class MemberGroup extends JPanel {
    
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private JButton titleButton;
    private JPanel memberPanel;
    private JScrollPane sp;
    
    public MemberGroup() {
        this("");
    }
    
    public MemberGroup(String name) {
        super(new BorderLayout());
        
        JPanel temp = new JPanel(new FlowLayout(FlowLayout.LEFT,0,1));
        
        titleButton = new JButton(name);
        titleButton.setFocusable(false);
        
        memberPanel = new JPanel(new GridLayout(0,1,0,0));
        temp.add(memberPanel);
        sp = new JScrollPane(temp);
        sp.setBorder(null);
        sp.setHorizontalScrollBarPolicy(
                JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        this.add(titleButton, BorderLayout.NORTH);
        this.add(sp, BorderLayout.CENTER);
        collapse();
    }
    
    public JButton getTitleButton() {
        return titleButton;
    }
    
    public void setMemberGaps(int hgap, int vgap) {
        memberPanel.setLayout(new GridLayout(0,1,hgap,vgap));
    }
    
    public JPanel getMemberPanel() {
        return memberPanel;
    }
    
    public void collapse() {
        sp.setVisible(false);
        this.revalidate();
    }
    
    public void expand() {
        sp.setVisible(true);
        this.revalidate();
    }
    
    public void setGroupName(String name) {
        titleButton.setText(name);
    }
    
    public String getGroupName() {
        return titleButton.getText();
    }
    
    public void addMember(Component comp) {
        memberPanel.add(comp);
        memberPanel.doLayout();
    }
    
    public void addMember(Component comp, int index) {
        memberPanel.add(comp,index);
        memberPanel.doLayout();
    }
    
    public void removeMember(int index) {
        memberPanel.remove(index);
        memberPanel.doLayout();
    }
    
    public int getMemberCount() {
        return memberPanel.getComponentCount();
    }
    
    public Component getMember(int index) {
        return memberPanel.getComponent(index);
    }
    
    public Component[] getMembers() {
        Component coms[] = new Component[getMemberCount()];
        for (int i = 0; i < coms.length; i++) {
            coms[i] = memberPanel.getComponent(i);
        }
        return coms;
    }
    
    public String toString() {
        return getName();
    }
}