1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
| import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
class MyFrame extends JFrame{
private JPanel myPanel = new MyPanel();
public MyFrame(int w, int h, String titre){
super();
setTitle(titre);
setSize(w,h);
Container contenu = getContentPane();
contenu.add(myPanel);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}
class MyPanel extends JPanel implements MouseListener,MouseMotionListener,ActionListener{
private int x,y,xDeb,yDeb,xFin,yFin;
private Collection figures = new ArrayList();
private Collection figurecourante;
private JPanel northPanel = new JPanel();
private JPanel centerPanel = new JPanel();
private JPanel southPanel = new JPanel();
private JButton btEfface = new JButton("Effacer");
private ButtonGroup choixFonction = new ButtonGroup();
private JRadioButtonMenuItem radioRect = new JRadioButtonMenuItem("Rectangle");
private JRadioButtonMenuItem radioOval = new JRadioButtonMenuItem("Ellipse");
private JRadioButtonMenuItem radioFree = new JRadioButtonMenuItem("Libre", true);
private JRadioButtonMenuItem radioLine = new JRadioButtonMenuItem("Ligne");
private JRadioButtonMenuItem radioPolygon = new JRadioButtonMenuItem("Polygone");
//Constructeur
public MyPanel(){
setLayout(new BorderLayout());
add(northPanel, BorderLayout.NORTH);
add(centerPanel, BorderLayout.CENTER);
add(southPanel, BorderLayout.SOUTH);
addMouseListener(this);
addMouseMotionListener(this);
northPanel.add(btEfface);
btEfface.addActionListener(this);
choixFonction.add(radioRect);
choixFonction.add(radioOval);
choixFonction.add(radioFree);
choixFonction.add(radioLine);
choixFonction.add(radioPolygon);
radioRect.addActionListener(this);
radioOval.addActionListener(this);
radioFree.addActionListener(this);
radioLine.addActionListener(this);
radioPolygon.addActionListener(this);
southPanel.add(radioRect);
southPanel.add(radioOval);
southPanel.add(radioFree);
southPanel.add(radioLine);
southPanel.add(radioPolygon);
}
private void dessinerDynamique (int x, int y){
this.x = x;
this.y = y;
Graphics g = getGraphics ();
g.setXORMode(getBackground());
if ( xDeb != x && yDeb != y){
if (radioRect.isSelected()){
g.drawRect(Math.min(xDeb, x), Math.min(yDeb, y), Math.abs(xDeb - x), Math.abs(yDeb - y));
}
else if (radioOval.isSelected()){
g.drawOval(Math.min(xDeb, x), Math.min(yDeb, y), Math.abs(xDeb - x), Math.abs(yDeb - y));
}
else g.drawLine(x,y,xFin,yFin);
}
}
public void paintComponent(Graphics g){
Collection figurecourante;
super.paintComponent(g);
// /!\.......... Ici le code concerné ........../!\
Iterator it = figures.iterator();
while (it.hasNext()){
Figure fig = (Figure) it.next();
fig.draw(g);
}
}
public void mousePressed(MouseEvent e){
xDeb = e.getX();
yDeb = e.getY();
figurecourante = new ArrayList();
figurecourante.add(new Point(xDeb,yDeb));
x = xDeb;
y = yDeb;
}
public void mouseDragged(MouseEvent e){
xFin = e.getX();
yFin = e.getY();
dessinerDynamique(x,y);
dessinerDynamique(xFin,yFin);
x = xFin;
y = yFin;
if (radioFree.isSelected()){
figurecourante.add(new Point(x,y));
}
}
public void mouseReleased(MouseEvent e){
figures.add(figurecourante);
}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseMoved(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void actionPerformed(ActionEvent e){
figures.clear();
this.repaint();
}
}
//**********************************************************
public class TPDessin{
public static void main(String[] args){
JFrame frame = new MyFrame(600,400,"Dessin sur le panel");
frame.show();
}
} |
