fontchooser.java~151~

1． 消息即时通信 2． 消息发送实现一对一、一对多等多种发送模式 3． 发送的消息实现多彩文本编辑

package chat;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
import javax.swing.*;

public class FontChooser extends JFrame {
  public static int OK_OPTION = 0;
  public static int CANCEL_OPTION = 1;
  private int OPTION;
  JPanel fullPanel;
  JPanel topPanel;
  JPanel centerPanel;
  JPanel undersidePanel;
  JPanel fontPanel;
  JPanel colorPanel;
  JPanel viewPanel;
  JPanel fontFamilyPanel;
  JPanel fontStylePanel;
  JPanel fontSizePanel;
  JList fontList;
  JList sizeList;
  JList styleList;
  JScrollPane fontFamilyScroll;
  JScrollPane fontSizeScroll;
  JScrollPane styleScroll;
  JScrollPane sampleTextScroll;

  JButton okButton;
  JButton cancelButton;

  JTextArea sampleText;

  Font font;
  String[] styles;
  String[] sizes;

  static String fontFamily="宋体";
  static int fontStyle=Font.PLAIN;
  static int fontSize=12;

  Container con;


  public FontChooser(){
    super("字体属性对话框");
    font=new Font("新宋体",Font.PLAIN,12);
    sizes=new String[]{"8","10","12","14","16","18","20","22","24","30","34"};
    styles=new String[]{"常规","粗体","斜体","粗斜体"};
    okButton=new JButton("确定");
    cancelButton=new JButton("取消");



    fullPanel=new JPanel();
    topPanel=new JPanel();
    centerPanel=new JPanel();
    undersidePanel=new JPanel();
    fontPanel=new JPanel();
    colorPanel=new JPanel();
    viewPanel=new JPanel();
    fontFamilyPanel=new JPanel();
    fontStylePanel=new JPanel();
    fontSizePanel=new JPanel();
    fontList = new JList(GraphicsEnvironment.getLocalGraphicsEnvironment().
                 getAvailableFontFamilyNames())
                 {
                        public Dimension getPreferredScrollableViewportSize()
                        {
                          return new Dimension(160, 140);
                        }
                 };
    fontList.setFont(font);
    fontFamilyScroll=new JScrollPane(fontList);
    //fontFamilyPanel.setPreferredSize(new Dimension(170,150));
    fontFamilyPanel.add(fontFamilyScroll);

    sizeList=new JList(sizes){
      public Dimension getPreferredScrollableViewportSize() {
        return new Dimension(60, 140);
      }
    };
    sizeList.setFont(font);

    fontSizeScroll=new JScrollPane(sizeList);

    fontSizePanel.add(fontSizeScroll);


    styleList=new JList(styles){
      public Dimension getPreferredScrollableViewportSize(){
        return new Dimension(60,140);
      }
    };
    styleList.setFont(font);
    styleScroll=new JScrollPane(styleList);
    fontStylePanel.add(styleScroll);

    fontList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    styleList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    sizeList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    //styleList.setPreferredSize(new Dimension(60,160));


   // fontFamilyPanel.setBorder(BorderFactory.createCompoundBorder(
     //           BorderFactory.createTitledBorder(
       //             "字体"),
         //       BorderFactory.createEmptyBorder(10,10,10,10)));
   sampleText=new JTextArea(){
     public Dimension getPreferredScrollableViewportSize() {
       return new Dimension(300, 100);
     }
   };
   sampleText.setEditable(false);


    sampleText.setFont(font);
    sampleText.setText("选择威尔，选择成功\nchoose WELL,choose to succeed");

    sampleTextScroll=new JScrollPane(sampleText);
    //sampleTextScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
    //sampleTextScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

    fullPanel.setBorder(BorderFactory.createRaisedBevelBorder());
    fontFamilyPanel.setBorder(BorderFactory.createTitledBorder("字体"));
    fontStylePanel.setBorder(BorderFactory.createTitledBorder("字形"));
    fontSizePanel.setBorder(BorderFactory.createTitledBorder("字体大小"));
    viewPanel.setBorder(BorderFactory.createTitledBorder("预览"));


    okButton.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
        FontChooser.this.OPTION=FontChooser.this.OK_OPTION;
        FontChooser.this.setVisible(false);
        System.out.println(OPTION);
      }
    });
    cancelButton.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
        FontChooser.this.OPTION=FontChooser.this.CANCEL_OPTION;
        FontChooser.this.setVisible(false);
        System.out.println(OPTION);
      }
    });

    viewPanel.add(sampleTextScroll);


    fontPanel.add(fontFamilyPanel);
    fontPanel.add(fontStylePanel);
    fontPanel.add(fontSizePanel);

    //centerPanel.setLayout(new GridLayout(3,1));
    centerPanel.add(fontPanel);
    centerPanel.add(colorPanel);
    centerPanel.add(viewPanel);

    undersidePanel.add(okButton);
    undersidePanel.add(cancelButton);



    con=this.getContentPane();
    fullPanel.setLayout(new BorderLayout());
    fullPanel.add(topPanel,BorderLayout.NORTH);
    fullPanel.add(centerPanel,BorderLayout.CENTER);
    fullPanel.add(undersidePanel,BorderLayout.SOUTH);
    con.add(fullPanel);

    setFont(null);


    ListSelectionListener listListener = new ListSelectionListener(){
      public void valueChanged(ListSelectionEvent e) {
          sampleText.setFont(getCurrentFont());

      }
    };
    fontList.addListSelectionListener(listListener);
    styleList.addListSelectionListener(listListener);
    sizeList.addListSelectionListener(listListener);
  }

  public void setFont(Font font){
    if(font==null){
      font=sampleText.getFont();
    }
    fontList.setSelectedValue(""+font.getFontName(),true);
    fontList.ensureIndexIsVisible(fontList.getSelectedIndex());
    sizeList.setSelectedValue(""+font.getSize(),true);
    sizeList.ensureIndexIsVisible(fontList.getSelectedIndex());
    styleList.setSelectedIndex(font.getStyle());
    styleList.ensureIndexIsVisible(styleList.getSelectedIndex());
    //System.out.println(font.getStyle());
  }
  public Font getFont(){
    if(this.OPTION==this.OK_OPTION){
      return getCurrentFont();
    }else{
      return null;
    }
  }


  public Font getCurrentFont(){
     fontFamily=(String)fontList.getSelectedValue();
     fontSize=Integer.parseInt((String)sizeList.getSelectedValue());
     fontStyle=styleList.getSelectedIndex();
     //System.out.println(fontStyle);
    return new Font(fontFamily,fontStyle,fontSize);
  }













  public static void main(String[] args) {
    FontChooser fontChooser=new FontChooser();
    fontChooser.setSize(500,600);
    fontChooser.setVisible(true);
  }
}