ColorPicker.java
5.12 KB
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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
package tp2.ColorPicker;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import java.awt.*;
import java.awt.event.*;
public class ColorPicker extends JPanel {
public static final int padding = 15;
public static final int baseRed = 0;
public static final int baseGreen = 0;
public static final int baseBlue = 0;
public static final int colorMax = 255;
public static final int maxSize = String.valueOf(colorMax).length();
Integer r = baseRed;
Integer g = baseGreen;
Integer b = baseBlue;
JSlider redSlider = new JSlider(0, colorMax, baseRed);
JSlider greenSlider = new JSlider(0, colorMax, baseGreen);
JSlider blueSlider = new JSlider(0, colorMax, baseBlue);
JTextField redField = new JTextField(Integer.toString(r), maxSize);
JTextField greenField = new JTextField(Integer.toString(g), maxSize);
JTextField blueField = new JTextField(Integer.toString(b), maxSize);
JTextField colorField = new JTextField(String.format("%02X%02X%02x", r, g, b), 10);
JPanel colorPan = new JPanel();
public class SliderListener extends MouseAdapter {
@Override
public void mouseReleased(MouseEvent e) {
r = redSlider.getValue();
g = greenSlider.getValue();
b = blueSlider.getValue();
updateValues();
}
}
public class ColorFieldListener extends KeyAdapter {
@Override
public void keyReleased(KeyEvent e){
String total = colorField.getText();
if (total.length() < 6) return;
String rs = total.substring(0,2);
String gs = total.substring(2,4);
String bs = total.substring(4, 6);
int rv, gv, bv;
try {
rv = Integer.parseInt(rs, 16);
gv = Integer.parseInt(gs, 16);
bv = Integer.parseInt(bs, 16);
System.out.println("field = "+total);
} catch (NumberFormatException nfe){
System.out.println("error while parsing");
return;
}
r=rv;
g=gv;
b=bv;
updateValues();
}
}
public class TextFieldListener extends KeyAdapter {
@Override
public void keyReleased(KeyEvent e) {
String rs = redField.getText();
String gs = greenField.getText();
String bs = blueField.getText();
int rv, gv, bv;
try {
rv = Integer.parseInt(rs);
gv = Integer.parseInt(gs);
bv = Integer.parseInt(bs);
} catch (NumberFormatException nfe) {
System.out.println("error parsing");
return;
}
if (rv >= 0 && rv <= 255) r = rv;
if (gv >= 0 && gv <= 255) g = gv;
if (bv >= 0 && bv <= 255) b = bv;
updateValues();
}
}
public void updateValues() {
redSlider.setValue(r);
greenSlider.setValue(g);
blueSlider.setValue(b);
redField.setText(Integer.toString(r));
greenField.setText(Integer.toString(g));
blueField.setText(Integer.toString(b));
colorField.setText(String.format("%02X%02X%02X", r, g, b));
colorPan.setBackground(new Color(r, g, b));
}
public ColorPicker() {
super();
BoxLayout layout = new BoxLayout(this, BoxLayout.X_AXIS);
this.setLayout(layout);
this.add(Box.createRigidArea(new Dimension(padding, padding)));
JPanel leftPan = new JPanel();
BoxLayout leftPanLayout = new BoxLayout(leftPan, BoxLayout.Y_AXIS);
leftPan.setLayout(leftPanLayout);
this.add(leftPan);
leftPan.add(Box.createRigidArea(new Dimension(padding, padding)));
JPanel firstRow = new JPanel();
firstRow.add(redSlider);
firstRow.add(redField);
leftPan.add(firstRow);
JPanel secondRow = new JPanel();
secondRow.add(greenSlider);
secondRow.add(greenField);
leftPan.add(secondRow);
JPanel thirdRow = new JPanel();
thirdRow.add(blueSlider);
thirdRow.add(blueField);
leftPan.add(thirdRow);
redSlider.addMouseListener(new SliderListener());
greenSlider.addMouseListener(new SliderListener());
blueSlider.addMouseListener(new SliderListener());
redField.addKeyListener(new TextFieldListener());
greenField.addKeyListener(new TextFieldListener());
blueField.addKeyListener(new TextFieldListener());
colorField.addKeyListener(new ColorFieldListener());
leftPan.add(Box.createRigidArea(new Dimension(padding, padding)));
JPanel rightPan = new JPanel();
BorderLayout rightPanLayout = new BorderLayout();
rightPan.setLayout(rightPanLayout);
rightPan.add(colorField, BorderLayout.NORTH);
colorPan.setBackground(Color.RED);
rightPan.add(colorPan, BorderLayout.CENTER);
updateValues();
this.add(rightPan);
}
}