package Method;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Box;
import javax.swing.JPanel;

import ColorAndFont.buttonTitle;
import PbuliClass.JButtonModel;
import PbuliClass.JlableModel;

/**±¾ÀàÓÃÓÚÑ¡ÔñÒ³Âë*/
public class PageSelect {
	JPanel mb=null;
	JButtonModel firstPageButton=null;
	JButtonModel latePageButton=null;
	JButtonModel nextPageButton=null;
	JButtonModel lastPageButton=null;
	String a;
	String serch;
	int k;
	int maxPageNumber;
	static int currentPageNumber = 1;//µ±Ç°Ò³Ãæ
	int allrows;//Êý¾Ý×ÜÌõÊý
	JPanel south=null;
	JlableModel nowpage;//µ±Ç°Ò³Âë
	String hang;//ÿҳÏÔʾµÄÐÐÊý
	String data_name;//Êý¾Ý¿âµÄÃû³Æ
	
	public String getHang() {
		return hang;
	}
	public String getSerch() {
		return serch;
	}

	public void setHang(String hang) {
		this.hang = hang;
	}

	public String getData_name() {
		return data_name;
	}

	public void setData_name(String data_name) {
		this.data_name = data_name;
	}


	public int getAllrows() {
		return allrows;
	}

	public void setAllrows(int allrows) {
		this.allrows = allrows;
	}

	public JPanel get_page_mb() {
			mb=new JPanel();
			mb.setBackground(Color.WHITE);//ÉèÖÃÃæ°å±³¾°Îª°×É«
			Box topicBox = Box.createHorizontalBox();// ´´½¨Ò»¸öˮƽÏäÈÝÆ÷
			topicBox.add(getFirstPageButton());
			topicBox.add(Box.createHorizontalStrut(15));// Ìí¼ÓÒ»¸ö3ÏñËØ¿íµÄˮƽ֧Öù
			topicBox.add(getLatePageButton());
			topicBox.add(Box.createHorizontalStrut(15));// Ìí¼ÓÒ»¸ö5ÏñËØ¿íµÄˮƽ֧Öù
			topicBox.add(getNextPageButton());
			topicBox.add(Box.createHorizontalStrut(15));// Ìí¼ÓÒ»¸ö5ÏñËØ¿íµÄˮƽ֧Öù			
			topicBox.add(getLastPageButton());
			nowpage= new JlableModel("µÚ"+currentPageNumber+"Ò³"); 
			topicBox.add(Box.createHorizontalStrut(25));// Ìí¼ÓÒ»¸ö15ÏñËØ¿íµÄˮƽ֧Öù			
			topicBox.add(nowpage);
			mb.add(topicBox );
		return mb;
	}
	
	public JButtonModel getFirstPageButton() {
		if(firstPageButton==null) {
			firstPageButton=new JButtonModel(buttonTitle.getHome());
			firstPageButton.setEnabled(false);
			firstPageButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					currentPageNumber=1;
					nowpage.setText("µÚ"+currentPageNumber+"Ò³");
					lastPageButton.setEnabled(true);
					nextPageButton.setEnabled(true);
					k=Integer.parseInt(getHang());
					serch="select * from "+getData_name() +" limit 0,"+k;
					currentPageNumber = 1;
					firstPageButton.setEnabled(false);
					latePageButton.setEnabled(false);	
				}
			});
		}
		return firstPageButton;
	}

	public JButtonModel getLatePageButton() {
		if(latePageButton==null) {
			latePageButton=new JButtonModel(buttonTitle.getPrevious());			
			latePageButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {					
					lastPageButton.setEnabled(true);
					latePageButton.setEnabled(true);
					--currentPageNumber;
					nowpage.setText("µÚ"+currentPageNumber+"Ò³");
					if(currentPageNumber==1) {
						latePageButton.setEnabled(false);
						firstPageButton.setEnabled(false);
					}
					if(currentPageNumber>=1) {
						k=Integer.parseInt(getHang());
						a=String.valueOf(currentPageNumber*k-k);
						serch="select * from "+getData_name() +" limit "+a+","+k;
						nextPageButton.setEnabled(true);
					}
				}
			});
		}
		return latePageButton;
	}

	public JButtonModel getNextPageButton() {
		if(nextPageButton==null) {
			nextPageButton=new JButtonModel(buttonTitle.getNext());
			nextPageButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					++currentPageNumber;
					nowpage.setText("µÚ"+currentPageNumber+"Ò³");
					k=Integer.parseInt(getHang());
					a=String.valueOf(currentPageNumber*k-k);
					serch="select * from  "+getData_name() +"  limit "+a+","+k;
					if(currentPageNumber!=1) {
						firstPageButton.setEnabled(true);
						latePageButton.setEnabled(true);
					}
					if (currentPageNumber == maxPageNumber) {
						nextPageButton.setEnabled(false);
						lastPageButton.setEnabled(false);
					}


				}
			});
		}
		return nextPageButton;
	}

	public JButtonModel getLastPageButton() {
		if(lastPageButton==null) {
			lastPageButton=new JButtonModel(buttonTitle.getLast());
			lastPageButton.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					nextPageButton.setEnabled(false);
					lastPageButton.setEnabled(false);
					k=Integer.parseInt(getHang()); 
					a=String.valueOf(getMaxPageNumber()*k-k);
					serch="select * from  "+getData_name() +"  limit "+a+","+k;
					latePageButton.setEnabled(true);
					firstPageButton.setEnabled(true);
					currentPageNumber=getMaxPageNumber();
					nowpage.setText("µÚ"+currentPageNumber+"Ò³");

				}
			});

		}
		return lastPageButton;
	}

	public int getMaxPageNumber() {
		double k=Integer.parseInt(getHang());
		double j=getAllrows()/k;
		return maxPageNumber=(int) Math.ceil(j);
		//Math.ceil() º¯Êý·µ»Ø´óÓÚ»òµÈÓÚÒ»¸ö¸ø¶¨Êý×ÖµÄ×îСÕûÊý
	}
	

}