fontdialog.java

java语言编辑的一个文本编辑器,模块清晰明了,用到JAVA的反射机制,可以给选中的单词加不同的颜色进行高亮显示.调整字符大小.

package javadesign;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
/****************************************************************
 *
 *       类FontDialog用来设置字体
 *
 ********************************************************/

public class FontDialog extends JDialog implements ActionListener {
    private String font[];
    private JLabel fontLabel, fontTypeLabel, fontSizeLabel, fontShowLabel;
    private JList fontList, fontTypeList, fontSizeList;
    private JTextField fontField, fontTypeField, fontSizeField,fontShowField;
    private JScrollPane fontScroll, fontTypeScroll, fontSizeScroll;
    public static JButton sureButton, cancelButton;
    private JPanel panel = new JPanel();
    public static Font myfont;
    private Container container = getContentPane();
    public static boolean sure;
    
    public FontDialog(Frame frame,String title, boolean modal){
        super(frame,title,modal);
        container.setLayout(null);
        setLocation(Note.xp + 50, Note.yp + 150);
        setResizable(false);
        setSize(420, 300);
        fontLabel = new JLabel("字体(F):");
        fontField = new JTextField(Note.font_name);
        GraphicsEnvironment g = GraphicsEnvironment.getLocalGraphicsEnvironment();
        font = g.getAvailableFontFamilyNames();//获得系统支持的所有字体列表
        fontList = new JList(font);
        fontList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);// 设为单选模式
        fontScroll = new JScrollPane(fontList);
        ///////////////////////////////////////////////////////////////////////
        fontTypeLabel = new JLabel("字形(Y):");
        String[] data = { "常规", "斜体", "粗体", "粗斜体" };
        fontTypeList = new JList(data);
        if (Note.font_type == 0)
            fontTypeField = new JTextField("常规");
        else if (Note.font_type == 1)
            fontTypeField = new JTextField("粗体");
        else if (Note.font_type == 2)
            fontTypeField = new JTextField("斜体");
        else  fontTypeField = new JTextField("粗斜体");
        fontTypeList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);// 设为单选模式
        fontTypeScroll = new JScrollPane(fontTypeList);
        ///////////////////////////////////////////////////////////////
        fontSizeLabel = new JLabel("大小(S):");
        String size[] = new String[100];
        for (int i = 10; i <= 100; i++) {
            size[i - 10] = String.valueOf(i);
        }
        fontSizeList = new JList(size);
        fontSizeField = new JTextField(""+Note.font_size);
        fontSizeList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);// 设为单选模式
        fontSizeScroll = new JScrollPane(fontSizeList);
        /////////////////////////////////////////////////////////////////
        sureButton = new JButton("确定");
        cancelButton = new JButton("取消");
        fontShowLabel = new JLabel("示例");
        fontShowField = new JTextField("字体AaBbYy");
        Border inside = BorderFactory.createBevelBorder(BevelBorder.LOWERED);
        fontShowField.setBorder(BorderFactory.createTitledBorder(inside));
        fontShowField.setEditable(false);
        fontShowField.setHorizontalAlignment(fontShowField.CENTER);
        fontShowField.setFont(myfont);
        this.getRootPane().setDefaultButton(sureButton);//默认的回车按键
        fontLabel.setBounds(10, 5, 162, 20);
        fontField.setBounds(10, 25, 162, 20);
        fontScroll.setBounds(10, 45, 162, 140);
        fontTypeLabel.setBounds(177, 5, 100, 20);
        fontTypeField.setBounds(177, 25, 100, 20);
        fontTypeScroll.setBounds(177, 45, 100, 140);
        fontSizeLabel.setBounds(282, 5, 50, 20);
        fontSizeField.setBounds(282, 25, 50, 20);
        fontSizeScroll.setBounds(282, 45, 50, 140);
        sureButton.setBounds(337, 25, 60, 20);
        cancelButton.setBounds(337, 50, 60, 20);
        fontShowLabel.setBounds(177, 195, 100, 20);
        fontShowField.setBounds(177, 215, 200, 45);
        /////////////////////////////////////////////////////////////        
        fontField.setEditable(false);
        fontTypeField.setEditable(false);
        fontSizeField.setEditable(false);        
        fontField.setBackground(Color.WHITE);   
        fontTypeField.setBackground(Color.WHITE);  
        fontSizeField.setBackground(Color.WHITE);  
        container.add(fontLabel);
        container.add(fontField);
        container.add(fontScroll);
        container.add(fontTypeLabel);
        container.add(fontTypeField);
        container.add(fontTypeScroll);
        container.add(fontSizeLabel);
        container.add(fontSizeField);
        container.add(fontSizeScroll);
        container.add(sureButton);
        container.add(cancelButton);
        container.add(fontShowLabel);
        container.add(fontShowField);
        ////////////////////////////////////////////////////////////////
        MouseListener mouseListener = new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                mouseClick(e);
            }
        };
        fontList.addMouseListener(mouseListener);
        fontTypeList.addMouseListener(mouseListener);
        fontSizeList.addMouseListener(mouseListener);
        sureButton.addActionListener(this);
        cancelButton.addActionListener(this);
        this.setVisible(true);
    }  
    public void mouseClick(MouseEvent e) {
        if (e.getSource() == fontList) {
            Note.font_name = fontList.getSelectedValue().toString();
            fontField.setText(Note.font_name);
        } else if (e.getSource() == fontTypeList)
            fontTypeField.setText(fontTypeList.getSelectedValue() .toString());
        else if (e.getSource() == fontSizeList) {
            fontSizeField.setText(fontSizeList.getSelectedValue().toString());
            Note.font_size= Integer.parseInt(fontSizeField.getText());
        }
        show_Font();
    }
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == sureButton){           
            sure=true;
            setVisible(false);
        }
        else if (e.getSource() == cancelButton){
            sure=false;
           setVisible(false);  
        }
           
    }
    public void show_Font() {
        if (fontTypeField.getText().equals("常规"))
            Note.font_type = 0;
        else if (fontTypeField.getText().equals("斜体"))
            Note.font_type = 2;
        else if (fontTypeField.getText().equals("粗体"))
            Note.font_type = 1;
        else if (fontTypeField.getText().equals("粗斜体"))
            Note.font_type = 3;
        myfont = new Font(Note.font_name, Note.font_type, Note.font_size);
        fontShowField.setFont(myfont);
    }
}