package clock;

/** *//**
 * MainFrame.java

 */

import java.awt.BorderLayout;
//borderlayout類是一個布置容器的邊框布局，它可以對容器組件進行安排，并調整其大小，使其符合下列五個區域：北、南、東、西、中。
import java.awt.Color;
//GridLayout 類是一個布局處理器，它以矩形網格形式對容器的組件進行布置。容器被分成大小相等的矩形，一個矩形中放置一個組件。
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Date;
import java.util.Calendar;

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

import com.sun.org.apache.xerces.internal.impl.xpath.regex.ParseException;


class MainFrame extends JFrame {
    /** *//**
     * 
     */
    private static final long serialVersionUID = 1L;
    JPanel panel = new JPanel(new BorderLayout());
    JPanel panel1 = new JPanel();
    JPanel panel2 = new JPanel(new GridLayout(7, 7));
    JPanel panel3 = new JPanel();
    JLabel[] label = new JLabel[49];
    JLabel y_label = new JLabel("年份");
    JLabel m_label = new JLabel("月份");
    JComboBox com1 = new JComboBox();
    JComboBox com2 = new JComboBox();
    int re_year, re_month;
    int x_size, y_size;
    String year_num;
    
    Calendar now = Calendar.getInstance(); // 實例化Calendar

    //getinstance 使用指定時區和語言環境獲得一個日歷。
   //Calendar 類是一個抽象類，它為特定瞬間與一組諸如 YEAR、MONTH、DAY_OF_MONTH、HOUR 等

    MainFrame() {
        super("萬年歷");
        setSize(300, 350);
       x_size = (int) (Toolkit.getDefaultToolkit().getScreenSize().getWidth());
        y_size = (int) (Toolkit.getDefaultToolkit().getScreenSize().getHeight());
       setLocation((x_size - 300) / 2, (y_size - 350) / 2);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        panel1.add(y_label);
       
       panel1.add(com1);
     
        panel1.add(m_label);
        panel1.add(com2);
        for (int i = 0; i < 49; i++) {
            label[i] = new JLabel("", JLabel.CENTER);// 將顯示的字符設置為居中
           
            panel2.add(label[i]);
        }
        panel3.add(new Clock(this));    //調用Clock類實例,來實現對當前時間的顯示
        panel.add(panel1, BorderLayout.NORTH);    //布局北面存放所要選擇的年份和月份
        panel.add(panel2, BorderLayout.CENTER);   //存放日歷
        panel.add(panel3, BorderLayout.SOUTH);   //存放當前時間
        panel.setBackground(Color.cyan);
        panel1.setBackground(Color.cyan);
        panel2.setBackground(Color.white);
        panel3.setBackground(Color.cyan);
        try {
			Init();
		} catch (java.text.ParseException e) {
			// TODO 自動生成 catch 塊
			e.printStackTrace();
		}
        com1.addActionListener(new ClockAction());
        com2.addActionListener(new ClockAction());

        setContentPane(panel);
        setVisible(true);
        setResizable(false);
    }

    class ClockAction implements ActionListener {
        public void actionPerformed(ActionEvent arg0) {
            int c_year, c_month, c_week;
          
        
         
            c_year = Integer.parseInt(com1.getSelectedItem().toString()); // 得到當前所選年份
            c_month = Integer.parseInt(com2.getSelectedItem().toString())-1; // 得到當前月份，并減1,計算機中的月為0－11
            c_week = use(c_year, c_month); // 調用函數use，得到星期幾
            try {
				Resetday(c_week, c_year, c_month);
			} catch (java.text.ParseException e) {
				// TODO 自動生成 catch 塊
				e.printStackTrace();
			} // 調用函數Resetday
        }
    }
    
    public void Init() throws java.text.ParseException {
        int year, month_num, first_day_num;
        String log[] = { "日", "一", "二", "三", "四", "五", "六" };
        for (int i = 0; i < 7; i++) {
            label[i].setText(log[i]);
        }
        for (int i = 0; i < 49; i = i + 7) {
            label[i].setForeground(Color.red); // 將星期日的日期設置為紅色
        }
        for (int i = 6; i < 49; i = i + 7) {
            label[i].setForeground(Color.green);// 將星期六的日期設置為綠色
        }
        for (int i = 1950; i < 2050; i++) {
            com1.addItem("" + i);
        }
        for (int i = 1; i < 13; i++) {
            com2.addItem("" + i);
        }
        month_num = (int) (now.get(Calendar.MONTH)); // 得到當前時間的月份
        year = (int) (now.get(Calendar.YEAR)); // 得到當前時間的年份
       
        com1.setSelectedIndex(year - 1950); // 設置下拉列表顯示為當前年，1950對應下拉框中是0
        com2.setSelectedIndex(month_num); // 設置下拉列表顯示為當前月
        first_day_num = use(year, month_num);//得到這個月第一天是星期幾
        Resetday(first_day_num, year, month_num);
    }

    public int use(int reyear, int remonth) {
        int week_num;
        now.set(reyear, remonth, 1); // 設置時間為所要查詢的年月的第一天
        week_num = (int) (now.get(Calendar.DAY_OF_WEEK));// 得到第一天的星期
        return week_num;
    }

    @SuppressWarnings("deprecation")
    //確定日期
    public void Resetday(int week_log, int year_log, int month_log) throws java.text.ParseException {
    
    	int  month_num = (int) (now.get(Calendar.MONTH))+1; // 得到當前時間的月份
    	
    	int month_day_score; // 存儲月份的天數
        int count;   //存放日期
        month_day_score = 0;
        count = 1;

        Date date = new Date(year_log, month_log + 1, 1); // now
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.add(Calendar.MONTH, -1); // 前個月
        month_day_score = cal.getActualMaximum(Calendar.DAY_OF_MONTH);// 最后一天

        for (int i = 7; i < 49; i++) { // 初始化標簽
            label[i].setText("");
        }
        week_log = week_log + 6; // 將星期數加6，使顯示正確
        month_day_score = month_day_score + week_log;
        for (int i = week_log; i < month_day_score; i++, count++) {
            label[i].setText(count + "");
            
            //  設置label的浮動提示
            try {
               now.setTime(Lunar.chineseDateFormat.parse(year_log+"年"+(month_log+1)+"月"+count+"日"));
            } catch (ParseException e) {
                e.printStackTrace();
            }
            String f=new Lunar(now).WorldFestival(month_num,count);
           if(f!=null)
          {
        	   label[i].setText(count+f);
           }
            
		  
			label[i].setToolTipText("農歷:"+new Lunar(now).cyclical()+new Lunar(now)+" 生肖:"+new Lunar(now).animalsYear()+".節日:"+f);
          
        }
    }

    public static void main(String[] args) {
        JFrame.setDefaultLookAndFeelDecorated(true);
        new MainFrame();        //實例化,運行構造函數顯示界面
    }
}