|
1 package JSci.astro.telescope;
2
3 import java.awt.*;
4 import java.awt.event.*;
5 import java.io.*;
6 import java.rmi.*;
7
8 public final class LX200ControlPanel extends Panel implements Runnable  {
9 private LX200Remote lx200;
10 private Thread statusThr=null;
11 private TextField raField=new TextField(8);
12 private TextField decField=new TextField(8);
13 private Button gotoButton=new Button("Goto");
14 private Button syncButton=new Button("Sync");
15 private Label raLabel=new Label();
16 private Label decLabel=new Label();
17 private Button inButton=new Button("+");
18 private Button outButton=new Button("-");
19 private Choice focusRateCombo=new Choice();
20 private Button northButton=new Button("N");
21 private Button eastButton=new Button("E");
22 private Button southButton=new Button("S");
23 private Button westButton=new Button("W");
24 private Choice slewRateCombo=new Choice();
25
26 public static void main(String arg[]) {
27 if(arg.length!=1) {
28 System.out.println("Usage: LX200ControlPanel rmi://<host>[:port]/<remote name>");
29 return;
30 }
31 Frame app=new Frame("LX200 Control Panel");
32 app.addWindowListener(new WindowAdapter() {
33 public void windowClosing(WindowEvent evt) {
34 System.exit(0);
35 }
36 });
37 app.add(new LX200ControlPanel(arg[0]));
38 app.setSize(100,400);
39 app.setVisible(true);
40 }
41 public LX200ControlPanel(String url) {
42 try {
43 lx200=(LX200Remote)Naming.lookup(url);
44 } catch(Exception e) {
45 e.printStackTrace();
46 }
47 gotoButton.addActionListener(new GotoActionListener());
48 syncButton.addActionListener(new SyncActionListener());
49 inButton.addActionListener(new FocusActionListener(LX200.FOCUS_IN));
50 outButton.addActionListener(new FocusActionListener(LX200.FOCUS_OUT));
51 focusRateCombo.add("Fast");
52 focusRateCombo.add("Slow");
53 focusRateCombo.addItemListener(new FocusRateItemListener());
54 northButton.addActionListener(new SlewActionListener(LX200.SLEW_NORTH));
55 eastButton.addActionListener(new SlewActionListener(LX200.SLEW_EAST));
56 southButton.addActionListener(new SlewActionListener(LX200.SLEW_SOUTH));
57 westButton.addActionListener(new SlewActionListener(LX200.SLEW_WEST));
58 slewRateCombo.add("Slew");
59 slewRateCombo.add("Find");
60 slewRateCombo.add("Center");
61 slewRateCombo.add("Guide");
62 slewRateCombo.addItemListener(new SlewRateItemListener());
63 Panel radecPanel=new Panel();
64 radecPanel.add(raLabel);
65 radecPanel.add(decLabel);
66 radecPanel.add(raField);
67 radecPanel.add(decField);
68 radecPanel.add(gotoButton);
69 radecPanel.add(syncButton);
70 Panel focusPanel=new Panel();
71 focusPanel.setLayout(new GridLayout(3,1));
72 focusPanel.add(inButton);
73 focusPanel.add(outButton);
74 focusPanel.add(focusRateCombo);
75 Panel slewPanel=new Panel();
76 GridBagConstraints gbc=new GridBagConstraints();
77 GridBagLayout gridbag=new GridBagLayout();
78 slewPanel.setLayout(gridbag);
79 gbc.fill=GridBagConstraints.BOTH;
80 gbc.gridx=1;gbc.gridy=0;
81 gridbag.setConstraints(northButton,gbc);
82 slewPanel.add(northButton);
83 gbc.gridx=0;gbc.gridy=1;
84 gridbag.setConstraints(westButton,gbc);
85 slewPanel.add(westButton);
86 gbc.gridx=2;gbc.gridy=1;
87 gridbag.setConstraints(eastButton,gbc);
88 slewPanel.add(eastButton);
89 gbc.gridx=1;gbc.gridy=2;
90 gridbag.setConstraints(southButton,gbc);
91 slewPanel.add(southButton);
92 gbc.gridx=0;gbc.gridy=3;
93 gbc.gridwidth=GridBagConstraints.REMAINDER;
94 gridbag.setConstraints(slewRateCombo,gbc);
95 slewPanel.add(slewRateCombo);
96 add(radecPanel);
97 add(focusPanel);
98 add(slewPanel);
99 statusThr=new Thread (this);
100 statusThr.start();
101 }
102 private class GotoActionListener implements ActionListener {
103 public void actionPerformed(ActionEvent evt) {
104 try {
105 lx200.setObjectCoords(raField.getText(),decField.getText());
106 lx200.slewToObject();
107 } catch(IOException e) {}
108 }
109 }
110 private class SyncActionListener implements ActionListener {
111 public void actionPerformed(ActionEvent evt) {
112 try {
113 lx200.setObjectCoords(raField.getText(),decField.getText());
114 lx200.syncCoords();
115 } catch(IOException e) {}
116 }
117 }
118 private class FocusActionListener implements ActionListener {
119 private final int direction;
120 private boolean focusing=false;
121 public FocusActionListener(int dir) {
122 direction=dir;
123 }
124 public void actionPerformed(ActionEvent evt) {
125 if(focusing) {
126 try {
127 lx200.stopFocus();
128 } catch(IOException e) {}
129 focusing=false;
130 } else {
131 try {
132 lx200.startFocus(direction);
133 } catch(IOException e) {}
134 focusing=true;
135 }
136 }
137 }
138 private class FocusRateItemListener implements ItemListener {
139 public void itemStateChanged(ItemEvent evt) {
140 try {
141 lx200.setFocusRate(focusRateCombo.getSelectedIndex()+1);
142 } catch(IOException e) {}
143 }
144 }
145 private class SlewActionListener implements ActionListener {
146 private final int direction;
147 private boolean slewing=false;
148 public SlewActionListener(int dir) {
149 direction=dir;
150 }
151 public void actionPerformed(ActionEvent evt) {
152 if(slewing) {
153 try {
154 lx200.stopSlew(direction);
155 } catch(IOException e) {}
156 slewing=false;
157 } else {
158 try {
159 lx200.startSlew(direction);
160 } catch(IOException e) {}
161 slewing=true;
162 }
163 }
164 }
165 private class SlewRateItemListener implements ItemListener {
166 public void itemStateChanged(ItemEvent evt) {
167 try {
168 lx200.setSlewRate(slewRateCombo.getSelectedIndex()+1);
169 } catch(IOException e) {}
170 }
171 }
172 public void run() {
173 while(statusThr==Thread.currentThread()) {
174 try {
175 raLabel.setText("RA: "+lx200.getRA());
176 decLabel.setText("Dec: "+lx200.getDec());
177 } catch(IOException e) {}
178 try {
179 Thread.sleep(2000);
180 } catch(InterruptedException e) {}
181 }
182 }
183 }
184
185 |
Popular Tags |
Java API By Example, From Geeks To Geeks.