cosewindow.java

java相关的j2me,j2se的一些相关资料

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;

public class CoseWindow implements ActionListener{ //聊天窗口的实现
    JTextPane text = new JTextPane();  //信息显示,信息可以以不同的字体和颜色显示.
    DefaultStyledDocument  document = new DefaultStyledDocument(); //将被设置为JTextPane的关联文档
    SimpleAttributeSet  attrSet = new SimpleAttributeSet();  //将不同的属性值与此关联,如颜色,字体大小等.
    JFrame frame = new JFrame("QQ式窗口");
    JTextField textField = new JTextField(60);
    JButton send = new JButton("发送");
    JComboBox  fontSize;
    JComboBox  fontColor;
    
    public CoseWindow() { }
    
    public void window(){
        frame.setVisible(true);
        frame.setBounds(10,10,600,500);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        text.setVisible(true);
        text.setStyledDocument(document);  //将编辑器与一个文本文档关联。
        JScrollPane scroll = new JScrollPane(text);
        scroll.setVisible(true);
        
        String[] str_Size = { "12", "14", "18", "22", "30", "40" };
        fontSize = new JComboBox(str_Size);
        fontSize.setVisible(true);
        String[] str_Color = { "黑色", "红色", "蓝色", "黄色", "绿色" };
        fontColor = new JComboBox(str_Color);
        fontColor.setVisible(true);
        
        fontSize.addActionListener(this);
        fontColor.addActionListener(this);
        send.addActionListener(this);
        
        JPanel panel = new JPanel();
        panel.setVisible(true);
        panel.setSize(200,60);
        panel.add(fontSize);
        panel.add(fontColor);
        panel.add(textField);
        panel.add(send);
        
        frame.add(scroll,BorderLayout.CENTER);
        frame.add(panel,BorderLayout.SOUTH);
    }
    
    
    public static void main(String args[]){
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException ex) {} catch (UnsupportedLookAndFeelException ex) {} catch (InstantiationException ex) {} catch (IllegalAccessException ex) {}
        
        new CoseWindow().window();
    }
    
    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == fontSize){
            int size = Integer.parseInt((String)fontSize.getItemAt(fontSize.getSelectedIndex()));
            StyleConstants.setFontSize(attrSet,size); //使用StyleConstants将字体大小与SimpleAttributeSet关联
        }else if(e.getSource() == fontColor){
            int color = fontColor.getSelectedIndex();
            switch(color){ //使用StyleConstants将字体颜色与SimpleAttributeSet关联
                case 0 : fontColor.setBackground(Color.BLACK);StyleConstants.setForeground(attrSet,Color.BLACK); break;
                case 1 : fontColor.setBackground(Color.RED);StyleConstants.setForeground(attrSet,Color.RED); break;
                case 2 : fontColor.setBackground(Color.BLUE);StyleConstants.setForeground(attrSet,Color.BLUE); break;
                case 3 : fontColor.setBackground(Color.YELLOW);StyleConstants.setForeground(attrSet,Color.YELLOW); break;
                case 4 : fontColor.setBackground(Color.GREEN);StyleConstants.setForeground(attrSet,Color.GREEN); break;
                default : fontColor.setBackground(Color.GRAY);StyleConstants.setForeground(attrSet,Color.GRAY);
            }
        }else if(e.getSource() == send){
            //text.insertComponent(new JButton("我的新按钮")); //在光标处插入按钮组件
            text.insertIcon(new ImageIcon("p1.gif")); //在光标处插入图片
            try {
                int position = text.getCaretPosition();  //取得当前光标的位置
                if(position < 0){position = document.getLength();}
                document.insertString(position,textField.getText()+"\n",attrSet); //在光标处或文档尾以attrSet属性插入数据,如果文档中有被选中的数据,则此插入将覆盖选中的数据.
                textField.setText(""); //清空输入框数据.
            } catch (BadLocationException ex) {}
        }
    }
}