import java.awt.*;import javax.swing.*;public class Answer_2108 extends JFrame {/** * Launch the application * * @param args */public static void main(String args[]) {try {Answer_2108 frame = new Answer_2108();frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}/** * Create the frame */public Answer_2108() {super();setBounds(100, 100, 500, 375);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);final JPanel topPanel = new JPanel();getContentPane().add(topPanel, BorderLayout.NORTH);final JLabel topLabel = new JLabel();topLabel.setText("日期：");topPanel.add(topLabel);final MDateField topTreeComboBox = new MDateField();topPanel.add(topTreeComboBox);final JPanel bottomPanel = new JPanel();getContentPane().add(bottomPanel, BorderLayout.SOUTH);final JLabel bottomLabel = new JLabel();bottomLabel.setText("日期：");bottomPanel.add(bottomLabel);final MDateField bottomTreeComboBox = new MDateField();bottomPanel.add(bottomTreeComboBox);final JLabel label = new JLabel();label.setText("");getContentPane().add(label, BorderLayout.CENTER);//}}import java.awt.*;import java.awt.event.*;import java.text.*;import java.util.*;import javax.swing.*;import javax.swing.border.*;import javax.swing.table.*;public class MDateField extends JPanel {private JTextField textField;public MDateField() {super();final FlowLayout flowLayout = new FlowLayout();flowLayout.setHgap(0);setLayout(flowLayout);textField = new JTextField();textField.setColumns(12);add(textField);final JButton button = new JButton();button.setText("...");button.setMargin(new Insets(0, 4, 0, 4));button.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {Dimension preferredSize = textField.getPreferredSize();Point locationOnScreen = textField.getLocationOnScreen();int x = (int) locationOnScreen.getX();int y = (int) (locationOnScreen.getY() + preferredSize.getHeight());int width = 310;int height = 187;JRootPane rootPane = textField.getRootPane();Point rootPaneLocationOnScreen = rootPane.getLocationOnScreen();if (height > rootPaneLocationOnScreen.getY()+ rootPane.getHeight() - y) {y = (int) (locationOnScreen.getY() - height);}ChooseDateDialog dialog = new ChooseDateDialog();dialog.setBounds(x, y, width, height);dialog.setVisible(true);}});add(button);//}class ChooseDateDialog extends JDialog {private int year;private int month;private int day;private int[] daysOfMonth = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30,31, 30, 31 };private JTextField yTextField;private JTextField mTextField;private DefaultTableModel tableModel;public ChooseDateDialog() {super();setModal(true);setUndecorated(true);setBounds(100, 100, 310, 153);Calendar today = Calendar.getInstance();year = today.get(Calendar.YEAR);month = today.get(Calendar.MONTH) + 1;day = today.get(Calendar.DAY_OF_MONTH);if (year % 4 == 0) {if (year % 100 != 0 || year % 400 == 0)daysOfMonth[2] = 29;elsedaysOfMonth[2] = 28;} else {daysOfMonth[2] = 28;}final JPanel panel = new JPanel();panel.setLayout(new BorderLayout());panel.setBorder(new LineBorder(Color.black, 1, false));getContentPane().add(panel, BorderLayout.CENTER);final JPanel buttonPanel = new JPanel();panel.add(buttonPanel, BorderLayout.NORTH);final JButton pyButton = new JButton();pyButton.setText("<<");pyButton.setToolTipText("上一年");pyButton.setMargin(new Insets(0, 10, 0, 10));pyButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {yTextField.setText(--year + "");initTableModel();}});buttonPanel.add(pyButton);final JButton pmButton = new JButton();pmButton.setText("<");pmButton.setToolTipText("上一月");pmButton.setMargin(new Insets(0, 12, 0, 12));pmButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {month--;if (month < 1) {month = 12;yTextField.setText(--year + "");}mTextField.setText(month + "");initTableModel();}});buttonPanel.add(pmButton);yTextField = new JTextField();yTextField.setColumns(4);yTextField.setEditable(false);yTextField.setHorizontalAlignment(JTextField.CENTER);yTextField.setText(year + "");buttonPanel.add(yTextField);final JLabel yLabel = new JLabel();yLabel.setText("年");buttonPanel.add(yLabel);mTextField = new JTextField();mTextField.setColumns(2);mTextField.setEditable(false);mTextField.setHorizontalAlignment(JTextField.CENTER);mTextField.setText(month + "");buttonPanel.add(mTextField);final JLabel mLabel = new JLabel();mLabel.setText("月");buttonPanel.add(mLabel);final JButton nmButton = new JButton();nmButton.setText(">");nmButton.setToolTipText("下一月");nmButton.setMargin(new Insets(0, 12, 0, 12));nmButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {month++;if (month > 12) {month = 1;yTextField.setText(++year + "");}mTextField.setText(month + "");initTableModel();}});buttonPanel.add(nmButton);final JButton nyButton = new JButton();nyButton.setText(">>");nyButton.setToolTipText("下一年");nyButton.setMargin(new Insets(0, 12, 0, 12));nyButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {yTextField.setText(++year + "");initTableModel();}});buttonPanel.add(nyButton);final JScrollPane scrollPane = new JScrollPane();panel.add(scrollPane, BorderLayout.CENTER);tableModel = new DefaultTableModel(6, 7);String[] columnNames = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五","星期六" };tableModel.setColumnIdentifiers(columnNames);initTableModel();final JTable table = new MTable(tableModel);table.setRowSelectionAllowed(false);table.addMouseListener(new MouseAdapter() {public void mouseClicked(MouseEvent e) {String dayS = table.getValueAt(table.getSelectedRow(),table.getSelectedColumn()).toString();if (!dayS.startsWith("[")) {day = Integer.valueOf(dayS);textField.setText(getSelectedDate());dispose();}}});scrollPane.setViewportView(table);final JLabel label = new JLabel();label.setText(" ");panel.add(label, BorderLayout.WEST);final JLabel label_1 = new JLabel();label_1.setText(" ");panel.add(label_1, BorderLayout.EAST);final JPanel todayPanel = new JPanel();panel.add(todayPanel, BorderLayout.SOUTH);final JLabel label_2 = new JLabel();label_2.setText("今天：" + year + "-" + month + "-" + day + " ");todayPanel.add(label_2);final JButton button = new JButton();button.setText("...");button.setMargin(new Insets(0, 12, 0, 12));button.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {Calendar today = Calendar.getInstance();year = today.get(Calendar.YEAR);month = today.get(Calendar.MONTH) + 1;day = today.get(Calendar.DAY_OF_MONTH);if (year % 4 == 0) {if (year % 100 != 0 || year % 400 == 0)daysOfMonth[2] = 29;elsedaysOfMonth[2] = 28;} else {daysOfMonth[2] = 28;}yTextField.setText(year + "");mTextField.setText(month + "");initTableModel();}});todayPanel.add(button);}private void initTableModel() {DateFormat dateFormat = DateFormat.getDateInstance();try {dateFormat.parse(year + "-" + month + "-" + 1);} catch (ParseException e) {e.printStackTrace();}Calendar theDay = dateFormat.getCalendar();int dayOfWeek = theDay.get(Calendar.DAY_OF_WEEK);for (int col = 0; col < dayOfWeek - 1; col++) {int days = ((month - 1) < 1 ? 31 : daysOfMonth[month - 1]);int day = days - ((dayOfWeek - 1) - 1 - col);tableModel.setValueAt("[ " + day + " ]", 0, col);}int day = 1;for (int col = dayOfWeek - 1; col < 7; col++) {tableModel.setValueAt(day++, 0, col);}String s = "";String e = "";for (int row = 1; row < 6; row++) {for (int col = 0; col < 7; col++) {if (day > daysOfMonth[month]) {s = "[ ";e = " ]";day = 1;}tableModel.setValueAt(s + day++ + e, row, col);}}}public String getSelectedDate() {return year + "-" + month + "-" + day;}}class MTable extends JTable {public MTable() {super();}public MTable(DefaultTableModel tableModel) {super(tableModel);}// 表格列名信息@Overridepublic JTableHeader getTableHeader() {// 获得表格头对象JTableHeader tableHeader = super.getTableHeader();tableHeader.setReorderingAllowed(false);// 设置表格列不可重排// 获得表格头的单元格对象DefaultTableCellRenderer defaultRenderer = (DefaultTableCellRenderer) tableHeader.getDefaultRenderer();// 设置单元格内容（即列名）居中显示defaultRenderer.setHorizontalAlignment(DefaultTableCellRenderer.CENTER);return tableHeader;}// 表格列值居中显示@Overridepublic TableCellRenderer getDefaultRenderer(Class<?> columnClass) {// 获得除表格头部分的单元格对象DefaultTableCellRenderer defaultRenderer = (DefaultTableCellRenderer) super.getDefaultRenderer(columnClass);// 设置单元格内容居中显示defaultRenderer.setHorizontalAlignment(DefaultTableCellRenderer.CENTER);return defaultRenderer;}// 表格不可编辑@Overridepublic boolean isCellEditable(int row, int column) {return false;}// 用来设置表格的选中行@Overridepublic void setRowSelectionInterval(int fromRow, int toRow) {// 重构父类的方法super.setRowSelectionInterval(fromRow, toRow);}// 用来设置表格的唯一选中行public void setRowSelectionInterval(int row) {// 通过重载实现自己的方法setRowSelectionInterval(row, row);}}}
