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Java > Open Source Codes > khumpangame > MoveView


1 package khumpangame;
2
3 import javax.swing.*;
4 import javax.swing.event.*;
5 import java.awt.*;
6 import java.awt.event.*;
7 import java.awt.geom.*;
8
9 /** view and controller
10 */
11 public class MoveView extends JPanel
12 {
13   final private Model model;
14   public int blocSize = 50;
15
16   private int clickedPiece = -1;
17   private int clickedX = -1;
18   private int clickedY = -1;
19
20   public MoveView(final Model model, final int blocSize, boolean withController)
21   {
22     this.model = model;
23     this.blocSize = blocSize;
24     this.setPreferredSize( new Dimension(blocSize*model.getNumberOfColumns(), blocSize*model.getNumberOfLines()));
25
26     // Controller
27 //
28 if(withController)
29     {
30       this.addMouseListener(new MouseAdapter()
31       {
32          @Override JavaDoc public void mousePressed(MouseEvent me)
33          {
34             clickedX = me.getX()/blocSize;
35             clickedY = me.getY()/blocSize;
36             clickedPiece = model.getPieceAt( clickedX, clickedY );
37             update();
38          }
39       });
40       this.addMouseMotionListener(new MouseMotionAdapter()
41       {
42          @Override JavaDoc public void mouseDragged(MouseEvent me)
43          {
44             int destX2 = me.getX()/blocSize;
45             int destY2 = me.getY()/blocSize;
46
47             if(clickedPiece>0 && Math.abs(destX2-clickedX)==1 && model.canMoveX(clickedPiece, destX2-clickedX))
48             {
49               model.moveX(clickedPiece, destX2-clickedX);
50               clickedX = destX2;
51             }
52             if(clickedPiece>0 && Math.abs(destY2-clickedY)==1 && model.canMoveY(clickedPiece, destY2-clickedY))
53             {
54               model.moveY(clickedPiece, destY2-clickedY);
55               clickedY = destY2;
56             }
57
58             update();
59          }
60       });
61     }
62   } // Constructor
63
64   public void update()
65   {
66     repaint();
67
68     if(model.hasReachEndPosition())
69     {
70        JOptionPane.showMessageDialog(this, "Congratulations, you solved the problem in "+model.numberOfMoves+" moves.");
71     }
72   }
73
74   /** this is the way one customizes the rendering of a JPanel
75   */
76   public void paintComponent(Graphics g)
77   {
78     super.paintComponent(g); // let the default method fills the background
79
80
81     for(int i=0; i<model.getNumberOfLines(); i++) // y
82 {
83        for(int j=0; j<model.getNumberOfColumns(); j++) // x
84 {
85            int piece = model.getPieceAt(j,i);
86            if(piece>0)
87            {
88               if(piece == clickedPiece) // highlight the clicked piece
89 {
90                 g.setColor( model.getColorForPiece( piece ).darker() );
91               }
92               else
93               {
94                 g.setColor( model.getColorForPiece( piece ) );
95               }
96
97               int borderLeft = (model.getPieceAt(j-1,i)!=piece ? 1 : 0);
98               int borderRight = (model.getPieceAt(j+1,i)!=piece ? 1 : 0);
99
100               int borderTop = (model.getPieceAt(j,i-1)!=piece ? 1 : 0);
101               int borderBelow = (model.getPieceAt(j,i+1)!=piece ? 1 : 0);
102
103
104               g.fillRect( j*blocSize+borderLeft, i*blocSize+borderTop, blocSize-borderLeft-borderRight, blocSize-borderTop-borderBelow);
105            }
106        }
107     }
108   }
109
110
111 } // MoveView
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