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/Users/lyon/j4p/src/gui/goslab/GOSLAB.java
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1 package gui.goslab;
2
3 import java.awt.*;
4 import java.awt.event.ActionEvent;
5 import java.awt.event.ActionListener;
6
7 public class GOSLAB
8 extends Frame
9 implements ActionListener {
10 String labels[] = {"red", "green", "blue", "moo"};
11 LabelControlPanel lcp = new LabelControlPanel(labels);
12 ScrollbarPanel sbp = new ScrollbarPanel(labels.length);
13 Panel panels[] = {sbp, lcp};
14
15 ButtonControlPanel bcp = new ButtonControlPanel(this);
16
17 static GridBagConstraintFrame gbcf =
18 new GridBagConstraintFrame();
19
20 public GOSLAB(
21 GridBagConstraints gbcsb,
22 GridBagConstraints gbclp,
23 GridBagConstraints gbcbcp) {
24
25 GridBagLayout gbl = new GridBagLayout();
26 setLayout(gbl);
27 gbl.setConstraints(sbp, gbcsb);
28 gbl.setConstraints(lcp, gbclp);
29 gbl.setConstraints(bcp, gbcbcp);
30 add(sbp);
31 add(lcp);
32 add(bcp);
33 setSize(200, 200);
34 pack();
35 setVisible(true);
36 }
37
38 public GOSLAB() {
39 gbcf.setVisible(true);
40
41 GridBagLayout ma = new GridBagLayout();
42 GridBagConstraints gbc = new GridBagConstraints();
43 gbc.gridx = 0;
44 gbc.gridy = 0;
45 gbc.fill = GridBagConstraints.HORIZONTAL;
46 gbc.weightx = 200;
47 gbc.weighty = 200;
48 setLayout(ma);
49 ma.setConstraints(sbp, gbc);
50
51 add(sbp);
52 gbc.gridx = GridBagConstraints.RELATIVE;
53 gbc.gridwidth = GridBagConstraints.REMAINDER;
54 add(lcp);
55
56 gbc.gridy = GridBagConstraints.BOTH;
57 gbc.weightx = 100;
58
59 ma.setConstraints(bcp, gbc);
60 add(bcp);
61 setSize(200, 200);
62 pack();
63 setVisible(true);
64
65 }
66
67 public static void main(
68 String args[]) {
69 new GOSLAB();
70 }
71
72 public void actionPerformed(ActionEvent e) {
73 Object o = e.getSource();
74 if (o == bcp.cancelButton) {
75 setVisible(false);
76 return;
77 }
78 if (o == bcp.okButton) {
79 sbp.printValues();
80 return;
81 }
82 }
83 }
84
85 class LabelControlPanel
86 extends Panel {
87 Label lba[];
88
89 LabelControlPanel(
90 String labels[]) {
91 setLayout(new GridLayout(0, 1));
92 lba =
93 new Label[labels.length];
94 for (int i = 0;
95 i < labels.length; i++) {
96 lba[i] = new Label(
97 labels[i]);
98 add(lba[i]);
99 }
100 }
101 }
102
103 class ScrollbarPanel
104 extends Panel {
105 Scrollbar sba[];
106
107 public int[] getValues() {
108 int values[] = new int[sba.length];
109 for (int i = 0;
110 i < sba.length;
111 i++)
112 values[i] =
113 sba[i].getValue();
114
115 return values;
116 }
117
118 public void printValues() {
119 int values[] = getValues();
120 for (int i = 0; i < values.length; i++)
121 System.out.println(values[i]);
122 }
123
124 ScrollbarPanel(int N) {
125 sba =
126 new Scrollbar[N];
127 GridBagLayout sbp = new GridBagLayout();
128 GridBagConstraints sb = new GridBagConstraints();
129
130 setLayout(sbp);
131 sb.gridx = 0;
132 sb.fill = GridBagConstraints.HORIZONTAL;
133 sb.weightx = 200;
134 sb.weighty = 200;
135
136 int j = 20;
137 for (int i = 0; i < sba.length; i++) {
138 sba[i] =
139 new Scrollbar(
140 Scrollbar.HORIZONTAL);
141 sba[i].setValue(50);
142 sbp.setConstraints(sba[i], sb);
143 add(sba[i]);
144 sb.gridy = GridBagConstraints.RELATIVE;
145 sb.fill = GridBagConstraints.HORIZONTAL;
146 sb.weightx = 100;
147 sb.weighty = 100;
148
149 }
150 }
151 }
152
153 class ButtonControlPanel extends
154 Panel {
155 Button okButton = new Button("ok");
156 Button cancelButton = new Button("cancel");
157
158 ButtonControlPanel(
159 ActionListener al) {
160 setLayout(new FlowLayout());
161 add(okButton);
162 add(cancelButton);
163 okButton.addActionListener(al);
164 cancelButton.addActionListener(al);
165 }
166 }
167
168 class GridBagConstraintPanel
169 extends Panel {
170 TextField gxtf = new TextField("0");
171 TextField gytf = new TextField("0");
172 TextField gwtf = new TextField("1");
173 TextField ghtf = new TextField("1");
174 TextField gwxtf = new TextField("200");
175 TextField gwytf = new TextField("200");
176 TextField ipadxtf = new TextField("0");
177 TextField ipadytf = new TextField("0");
178 Choice fillChoice = new
179 Choice();
180 GridBagConstraints gbc = new GridBagConstraints();
181
182 GridBagConstraintPanel() {
183 setLayout(new GridLayout(0, 2));
184 add(new Label("gridx="));
185 add(gxtf);
186 add(new Label("gridy="));
187 add(gytf);
188 add(new Label("gridHeight="));
189 add(ghtf);
190 add(new Label("gridWidth="));
191 add(gwtf);
192 add(new Label("weightx="));
193 add(gwxtf);
194 add(new Label("weighty="));
195 add(gwytf);
196 add(new Label("ipadx="));
197 add(ipadxtf);
198 add(new Label("ipady="));
199 add(ipadytf);
200
201 fillChoice.add("NONE");
202 fillChoice.add("VERTICAL");
203 fillChoice.add("HORIZONTAL");
204 fillChoice.add("BOTH");
205 add(new Label("fillChoice="));
206 add(fillChoice);
207 }
208
209 GridBagConstraints getGridBagConstraints() {
210 gbc.gridx = Integer.parseInt(gxtf.getText());
211 gbc.gridy = Integer.parseInt(gytf.getText());
212 gbc.gridwidth = Integer.parseInt(gwtf.getText());
213 gbc.gridheight = Integer.parseInt(ghtf.getText());
214 String fs = fillChoice.getSelectedItem();
215 if (fs.equals("NONE"))
216 gbc.fill = GridBagConstraints.NONE;
217 if (fs.equals("VERTICAL"))
218 gbc.fill = GridBagConstraints.VERTICAL;
219 if (fs.equals("HORIZONTAL"))
220 gbc.fill = GridBagConstraints.HORIZONTAL;
221 if (fs.equals("BOTH"))
222 gbc.fill = GridBagConstraints.BOTH;
223 gbc.weightx = Integer.parseInt(gwxtf.getText());
224 gbc.weighty = Integer.parseInt(gwytf.getText());
225 gbc.ipadx = Integer.parseInt(ipadxtf.getText());
226 gbc.ipady = Integer.parseInt(ipadytf.getText());
227 return gbc;
228 }
229 }
230
231 class GridBagConstraintFrame extends
232 Frame implements ActionListener {
233 ButtonControlPanel bcp
234 = new ButtonControlPanel(this);
235 GridBagConstraintPanel gbcpsb
236 = new GridBagConstraintPanel();
237 GridBagConstraintPanel gbcplp
238 = new GridBagConstraintPanel();
239 GridBagConstraintPanel gbcpbp
240 = new GridBagConstraintPanel();
241
242 GridBagConstraintFrame() {
243 super("Scrollbar,Label & button Constraints");
244 setLayout(new GridLayout(2, 0));
245 add(gbcpsb);
246 add(gbcplp);
247 add(gbcpbp);
248 add(bcp);
249 pack();
250 show();
251 }
252
253 public void actionPerformed(ActionEvent e) {
254 Object target = e.getSource();
255 if (target == bcp.okButton) {
256 GOSLAB gl = new GOSLAB(
257 gbcpsb.getGridBagConstraints(),
258 gbcplp.getGridBagConstraints(),
259 gbcpbp.getGridBagConstraints());
260 gl.pack();
261 gl.show();
262
263 }
264 }
265 }
266
267
268