import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class MoveBlock extends JFrame{
	 public JPanel cardPanel;
	 public CardLayout cardLayout;
	 public JButton jB1;
	 public JButton jB2;
	 public int i;
	
	 public MoveBlock(Block block,Point p){
	 	 super("移動(dòng)方塊");
	 	 this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	 	 this.setResizable(false);
	 	 this.setLocation(p);
	 	 JPanel []panel=new JPanel[block.lengthRoute()];
	 	 cardPanel=new JPanel();
	 	 cardLayout=new CardLayout();
	 	 cardPanel.setLayout(cardLayout);
	 	 int blockNUM=block.numBlock();
	 	 for(int i=0;i<panel.length;i++){
	 	 	 panel[i]=new JPanel();
	 	 	 panel[i].setLayout(new GridLayout((int)Math.sqrt(blockNUM),(int)Math.sqrt(blockNUM),2,2));
	 	 	 for(int j=0;j<blockNUM;j++){
	 	 	 	 JButton b1=new JButton(block.route[i].blockString[j].toString());
	 	 	 	 panel[i].add(b1);
	 	 	 	}
	 	 	 cardPanel.add(panel[i],"第"+i+"個(gè)");
	 	 	}
	 	 i=0;
	 	 jB1=new JButton("上一步");
	 	 jB2=new JButton("下一步");
	 	 if(i==0)jB1.setEnabled(false);
	 	 ButtonListener listener=new ButtonListener();
	 	 JPanel commandPanel=new JPanel();
	 	 jB1.addActionListener(listener);
	 	 jB2.addActionListener(listener);
	 	 commandPanel.add(jB1);
	 	 commandPanel.add(jB2);
	 	 JPanel contentPane=(JPanel)getContentPane();
	 	 contentPane.add(cardPanel,BorderLayout.CENTER);
	 	 contentPane.add(commandPanel,BorderLayout.SOUTH);
	 	 pack();
	 	 show();
	 	}
	 	
	 private void miss(){this.dispose();}
	 
	 private class ButtonListener implements ActionListener{
	 	 public void actionPerformed(ActionEvent e){
	 	 	 if(e.getSource()==jB1){i--;cardLayout.previous(cardPanel);if(i==0)jB1.setEnabled(false);jB2.setText("下一步");jB2.setEnabled(true);}
	 	 	 else if(e.getSource()==jB2&&jB2.getText()=="下一步"){i++;cardLayout.next(cardPanel);if(i==cardPanel.getComponentCount()-1){jB2.setText("完成");JOptionPane.showMessageDialog(new JFrame(),"移動(dòng)成功!!!");}jB1.setEnabled(true);}
	 	 	 else if(e.getSource()==jB2&&jB2.getText()=="完成"){
	 	 	 	 Point p=new Point(250,200);
	 	 	 	 miss();
	 	         new BlockFace(9,p);
	 	 	 	}
	 	 	}
	 	}
	}