下面是能够显示单天日期的完整源代码：有兴趣的朋友可以看下
import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
//这是一个用JList和JTable完成的简单日历
public class CalendarTest
{
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
JFrame frame = new CalendarFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
}
class CalendarFrame extends JFrame
{
private static final long serialVersionUID = 8067844586793608064L;
JPanel listPanel; // 显示月份的列表面板
JPanel tablePanel; // 显示日期的表格面板
JPanel textPanel; // 文本面板
JMenuBar menuBar; // JMenuBar,JMenu定义的变量都没有实现功能
JMenu fileMenu;
JMenu editMenu;
JMenu formatMenu;
JMenu lookMenu;
JMenu helpMenu;
JEditorPane text; // 自带复制，剪切和删除快捷键功能的面板
JScrollPane textscrollpane;
JScrollPane tablescrollpane;
JList list; // 显示月份的列表
JTable table; // 显示日期的表格
JPanel yearPanel; // 显示年份的面板
JSpinner spinner; // JSpinner空间
public static boolean flag = true;
public CalendarFrame()
{
table = new JTable(new MyTableModel());
tablescrollpane = new JScrollPane(table);
for (int i = 0; i < 7; i++)
{
TableColumn column = table.getColumnModel().getColumn(i);// 获取表格每一列
column.setResizable(false);// 不允许改变列的大小
}
table.setBackground(Color.GREEN);
table.setRowHeight(72); // 设定每列的大小
table.setRowSelectionAllowed(false);// 设定行的选择模式
table.setDefaultRenderer(String.class, new MyTableRenderer());
list = new JList(new AbstractListModel() // 匿名的list模型类，提供list显示的月份数据
{
private static final long serialVersionUID = -3703164069291737586L;
public Object getElementAt(int index)
{
String obj = null;
switch (index)
{
case 0:
obj = "Jan";
break;
case 1:
obj = "Feb";
break;
case 2:
obj = "Mar";
break;
case 3:
obj = "Apr";
break;
case 4:
obj = "May";
break;
case 5:
obj = "Jun";
break;
case 6:
obj = "Jul";
break;
case 7:
obj = "Aug";
break;
case 8:
obj = "Sep";
break;
case 9:
obj = "Oct";
break;
case 10:
obj = "Nov";
break;
case 11:
obj = "Dec";
break;
}
return obj;
}
@Override
public int getSize()
{
return 12;
}
});
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); // 设定列表的选择模式
list.setCellRenderer(new MyListCellRenderer()); // 列表元素的绘制类MyListCellRenderer
list.setSelectedIndex(Calendar.getInstance().get(Calendar.MONTH));// JList默认的月份为现实的月份
list.addListSelectionListener(new ListSelectionListener()// 当某个列表被选中时，更新日期table控件
{
@Override
public void valueChanged(ListSelectionEvent e)
{
flag = true;
table.updateUI();
}
});
listPanel = new JPanel();
listPanel.setLayout(new BorderLayout());
listPanel.add(list);
tablePanel = new JPanel();
tablePanel.setBackground(Color.white);
tablePanel.setLayout(new BorderLayout());
tablePanel.add(tablescrollpane);
// table.setBackground(Color.green);
yearPanel = new JPanel();// 将label控件和JSpinner控件加入年份面板上
yearPanel.setLayout(new GridLayout(0, 3));
JLabel gongyuan = new JLabel("公元", JLabel.RIGHT);
JLabel year = new JLabel("年");
spinner = new JSpinner(new SpinnerNumberModel(Calendar.getInstance()
.get(Calendar.YEAR), null, null, 1));
spinner.addChangeListener(new ChangeListener() // 为JSpinner空间添加事件监听器
{
@Override
public void stateChanged(ChangeEvent e)
{
flag = true;
table.updateUI();
}
});
yearPanel.add(gongyuan);
yearPanel.add(spinner);
yearPanel.add(year);
tablePanel.add(yearPanel, BorderLayout.NORTH);// 将年份面板加入到表格面板的北部
textPanel = new JPanel();
textPanel.setLayout(new BorderLayout());
text = new JEditorPane();
textscrollpane = new JScrollPane(text);
textPanel.add(textscrollpane);
text.setFont(new Font("SansSerif", Font.PLAIN, 40));
tablePanel.add(textPanel, BorderLayout.SOUTH);
menuBar = new JMenuBar();// JMenu定义的空间都没实现功能
fileMenu = new JMenu("文件");
editMenu = new JMenu("编辑");
formatMenu = new JMenu("格式");
lookMenu = new JMenu("查看");
helpMenu = new JMenu("帮助");
menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(formatMenu);
menuBar.add(lookMenu);
menuBar.add(helpMenu);
GridBagLayout layout = new GridBagLayout(); // 设成GridBagLayout布局
GridBagConstraints constraints = new GridBagConstraints();
this.setFont(new Font("SansSerif", Font.PLAIN, 14));
this.setLayout(layout);
this.setTitle("万年历"); // 设定标题
this.setIconImage(new ImageIcon("res\\title.jpg").getImage()); // 设定图标
constraints.fill = GridBagConstraints.BOTH;
constraints.weightx = 0.5;
constraints.weighty = 0.5;
layout.setConstraints(listPanel, constraints);
constraints.weightx = 8.0;
constraints.weighty = 0.5;
layout.setConstraints(tablePanel, constraints);
this.setJMenuBar(menuBar);
this.add(listPanel);
this.add(tablePanel);
this.setSize(this.getToolkit().getScreenSize().width * 3 / 4, this
.getToolkit().getScreenSize().height * 3 / 4); // 设定窗体的大小
}
class MyTableModel extends AbstractTableModel // 表格模型类，提供表格数据
{
private static final long serialVersionUID = 1L;
String[] columnName = new String[]
// 表格列名
{ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday",
"Saturday" };
@Override
public int getColumnCount() // 返回表格列数
{
return columnName.length;
}
public int getRowCount() // 返回表格行数
{
return 6;
}
public String getColumnName(int col) // 获得表格列名
{
return columnName[col];
}
public Class<? extends Object> getColumnClass(int c)
{
return getValueAt(0, c).getClass();
}
public Object getValueAt(int rowIndex, int columnIndex)
{
int month = list.getSelectedIndex();// 获得列表的月份
int year = (Integer) spinner.getValue();// 获得spinner显示的年份
GregorianCalendar gc = new GregorianCalendar(year, month, 1);
int dayOfWeek = gc.get(gc.DAY_OF_WEEK) - 1; // 获得这个月的第一天是星期几
int countDayInMonth = 0;// 某月的总天数，这里的月是从0-11,表示1-12月
if (month == 0 || month == 2 || month == 4 || month == 6
|| month == 7 || month == 9 || month == 11)
{
countDayInMonth = 31; // 是31天的月份
} else if (month == 3 || month == 5 || month == 8 || month == 10)
{
countDayInMonth = 30; // 是30天的月份
} else if (gc.isLeapYear(year) && month == 1)
{
countDayInMonth = 29; // 闰年2月
} else if (!gc.isLeapYear(year) && month == 1)
{
countDayInMonth = 28; // 非闰年2月
}
String value = ""; // 因为返回值是Object类型，所以不能直接返回int类型的数据，所以转换成String类型
if (rowIndex == 0) // 第一列的数据
{
if (columnIndex < dayOfWeek)
{
value = "";
} else
{
value = "" + (columnIndex - dayOfWeek + 1);
}
} else
// 其余列的数据
{
if (((rowIndex - 1) * 7) + (columnIndex + 1 + 7 - dayOfWeek) <= countDayInMonth)
value = (((rowIndex - 1) * 7) + (columnIndex + 1 + 7 - dayOfWeek))
+ "";
}
return value;
}
}
class MyListCellRenderer extends JLabel implements ListCellRenderer // 列表元素绘制类继承自JLabel,实现ListCellRenderer接口
{
private static final long serialVersionUID = 1L;
public Component getListCellRendererComponent(JList list, // the list
Object value, // value to display
int index, // cell index
boolean isSelected, // is the cell selected
boolean cellHasFocus) // does the cell have focus
{
String s = value.toString().trim(); // 获取选中元素的字符内容
setText(s); // 显示这个字符
Dimension dimension = list.getSize(); // 设定这个每个元素的大小
int height = dimension.height / 12;
int width = dimension.width;
setSize(width, height);
if (isSelected) // 如果该元素被选中，则背景色为红色
{
setBackground(Color.red);
setForeground(list.getSelectionBackground());
} else
// 未被选中的元素背景色显示为灰色，前景色为粉红色
{
setBackground(Color.gray);
setForeground(Color.pink);
}
setIcon(new ImageIcon("res\\mon.jpg")); // 设定该元素的图标
setEnabled(list.isEnabled());
setFont(new Font("SansSerif", Font.PLAIN, 20)); // 设定字体大小
setOpaque(true);
return this;
}
}
class MyTableRenderer extends JLabel implements TableCellRenderer
{
private static final long serialVersionUID = 1L;
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus, int row,
int column)
{
if ((Calendar.getInstance().get(Calendar.DAY_OF_MONTH) + "") //如果这个标签上的值等于该天的值
.equals(value)
&& flag == true
//标记为true
&& list.getSelectedIndex() == Calendar.getInstance().get(
Calendar.MONTH)
//列表显示的月份是该月的值
&& (Integer) spinner.getValue() == Calendar.getInstance()
.get(Calendar.YEAR))//spinner显示的年份是该年
{
setFont(new Font("SansSerif", Font.PLAIN, 40)); // 设定字体大小
setText((String) value);
//显示日期字符串
setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
setForeground(Color.RED);
//设定字符串颜色
flag = false;
} else
//如果不是改日的标签上的值
{
setFont(new Font("SansSerif", Font.PLAIN, 40)); // 设定字体大小
setText((String) value);
//显示标签上的日期字符串
if (hasFocus)
//如果是被点中的表格的单元格
{
setBorder(UIManager
.getBorder("Table.focusCellHighlightBorder"));
//设定边框
setForeground(Color.RED);//设定日期字符串颜色
} else
{
setForeground(null);
setBorder(null);
}
}
return this;
}
}
}
calendarTest.rar
(13.53 KB)
2009-07-31 16:22
