下面的这个程序是项目里面的一个对话框,可以直接改成窗体,将JDailog改为JFrame就可以了
在设置字体的时候,先选择好字体的那三个参数,在点击确定
本程序的确定,不能对选中的部分内容进行设置,而是设置全部的内容
package cn.com.peixunban.view.dialog.toolDialog;
import java.awt.BorderLayout;import java.awt.Color;import java.awt.Font;import java.awt.GraphicsEnvironment;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.util.ResourceBundle;
import javax.swing.JButton;import javax.swing.JColorChooser;import javax.swing.JComboBox;import javax.swing.JDialog;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextArea;import javax.swing.JTextField;
import cn.com.peixunban.action.toolAction.MessBoardAction;
/** * 留言板对话框 * * @author 黄根华 */public class MessBoard extends JDialog {
private static MessBoard instance;
private JPanel southPanel;// 南部面板
private JPanel northPanel;// 北部面板
private JPanel centerPanel;// 中心面板
private JTextArea area;// 文本域
private JTextField searchText;// 查找内容
private JPanel buttonPanel;// 按钮面板
private JComboBox fontBox;// 字体列表
private ResourceBundle rb;// 包含特定语言环境的对象
private JComboBox typeBox;// 字体风格列表
private JComboBox sizeBox;// 大小列表
private Font f;// 字体;
private String fontname = "楷体";// 字体
private String type = "PLAIN";// 字体风格
private String sizeFont = "34";// 大小
/* * 单子设计模式 */ private MessBoard() { init(); }
public static MessBoard getInstance() { if (instance == null) { instance = new MessBoard(); } return instance; }
public JTextArea getArea1() { return area; }
public JTextField getSearchText() { return searchText; }
/** * 初始化当前对话框 */ public void init() { this.setTitle("留言板"); this.setModal(true); this.setSize(600, 550); this.createFontBox(); this.createTypeBox(); this.createSizeBox(); searchText = new JTextField(10); area = new JTextArea(50, 50); this.add(createNorthPanel(), BorderLayout.NORTH); this.add(createCenterPnael(), BorderLayout.CENTER); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(this.DO_NOTHING_ON_CLOSE); // 添加窗口关闭事件 this.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { dispose(); } }); this.setVisible(true); }
/** * 创建中心面板 * * @return */ public JPanel createCenterPnael() { centerPanel = new JPanel(); centerPanel.setLayout(new BorderLayout()); centerPanel.add(area, BorderLayout.CENTER); centerPanel.add(createButtonPanel(), BorderLayout.SOUTH); return centerPanel; }
/** * 创建北部面板 * * @return */ public JPanel createNorthPanel() { northPanel = new JPanel(); northPanel.add(createLabel("字体 ")); northPanel.add(fontBox); northPanel.add(typeBox); northPanel.add(sizeBox); northPanel.add(createButton("确定")); northPanel.add(createButton("颜色")); return northPanel; }
/** * 创建按钮面板 * * @return */ public JPanel createButtonPanel() { buttonPanel = new JPanel(); buttonPanel.add(createButton("提交")); buttonPanel.add(createLabel(" ")); buttonPanel.add(createButton("清空")); return buttonPanel; }
/** * 创建按钮 * * @param name * @return */ public JButton createButton(String buttonName) { JButton button = new JButton(buttonName); // 向按钮添加事件 button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) { String cmd = e.getActionCommand(); if (cmd.equals("确定")) { fontname = fontBox.getSelectedItem().toString(); type = typeBox.getSelectedItem().toString(); sizeFont = sizeBox.getSelectedItem().toString(); area.setFont(getFont(fontname, type, sizeFont)); } else if (cmd.equals("颜色")) { JColorChooser chooser = new JColorChooser(); Color color = chooser.showDialog(MessBoard.this, "选择颜色", Color.BLACK); // 如果没有选择颜色 if (color == null) { color = Color.BLACK; } area.setForeground(color);// 设置字体的颜色 } }); return button; }
/** * 创建标签 * * @param labelName * @return */ public JLabel createLabel(String labelName) { JLabel label = new JLabel(labelName, JLabel.LEFT); return label; }
/** * 创建字体列表 * * @return */ public void createFontBox() { String[] fontName = null; // 获得系统可用的字体 fontName = GraphicsEnvironment.getLocalGraphicsEnvironment() .getAvailableFontFamilyNames(); fontBox = new JComboBox(fontName); fontname = fontBox.getSelectedItem().toString(); }
/** * 创建字体大小的类表 * * @return */ public void createSizeBox() { String fontSizes[] = { "8", "9", "10", "11", "12", "14", "16", "18", "20", "22", "24", "26", "28", "36", "48", "72" }; sizeBox = new JComboBox(fontSizes);
sizeFont = sizeBox.getSelectedItem().toString(); }
/** * 创建字体风格列表 * * @return */ public void createTypeBox() { String[] type2 = { "PLAIN", "BOLD", "ITALIC" }; typeBox = new JComboBox(type2); type = typeBox.getSelectedItem().toString(); }
/* * 获得字体 (non-Javadoc) * * @see java.awt.Component#getFont() */ public Font getFont(String name, String type, String sizefont) { int size = Integer.parseInt(sizeFont); int typle = 0; if (type.equalsIgnoreCase("PLAIN")) { typle = Font.PLAIN; } else if (type.equalsIgnoreCase("BOLD")) { typle = Font.BOLD; } else if (type.equalsIgnoreCase("ITALIC")) { typle = Font.ITALIC; } Font f = new Font(name, typle, size); return f; } /** * @param args */ public static void main(String[] args) { MessBoard instance = MessBoard.getInstance(); }}
