annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 130:2a0b10fd128d

host editor database values override summary text only if non-empty
author Carl Byington <carl@five-ten-sg.com>
date Thu, 19 Jun 2014 09:56:25 -0700
parents cb3b9b660b3d
children 13cea57ac61e
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1 package com.five_ten_sg.connectbot.service;
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2
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3 import android.content.ComponentName;
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4 import android.content.Context;
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5 import android.content.Intent;
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6 import android.content.ServiceConnection;
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7 import android.os.IBinder;
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8 import android.util.Log;
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9 import android.view.View;
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10 import de.mud.terminal.vt320;
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11 import java.io.IOException;
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12 import java.io.InputStream;
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13 import java.io.OutputStream;
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14 import java.net.InetAddress;
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15 import java.net.Socket;
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16 import java.nio.charset.Charset;
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17 import java.util.HashMap;
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18 import java.util.concurrent.ArrayBlockingQueue;
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19 import java.util.concurrent.BlockingQueue;
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20 import java.util.concurrent.ConcurrentHashMap;
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21
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22 public class TerminalMonitor {
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23 public final static String TAG = "ConnectBot.TerminalMonitor";
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24
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25 public static final char MONITOR_CMD_INIT = 0;
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26 public static final char MONITOR_CMD_ACTIVATE = 1;
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27 public static final char MONITOR_CMD_HOSTDATA = 2;
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28 public static final char MONITOR_CMD_CURSORMOVE = 3;
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29 public static final char MONITOR_CMD_SCREENCHANGE = 4;
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30 public static final char MONITOR_CMD_FIELDVALUE = 5;
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31 public static final char MONITOR_CMD_SETFIELD = 5;
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32 public static final char MONITOR_CMD_GETFIELD = 6;
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33 public static final char MONITOR_CMD_SCREENWATCH = 7;
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34 public static final char MONITOR_CMD_DEPRESS = 8;
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35
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36 private static final int MONITORPORT = 6000;
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37 private static final String LOCALHOST = "127.0.0.1";
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38
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39 private Context parent = null;
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40 private vt320 buffer = null;
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41 private View view = null;
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42 private String init = null;
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43 private int start_line = 0; // monitor part of the screen for changes
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44 private int end_line = 500; // ""
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45 private int start_column = 0; // ""
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46 private int end_column = 500; // ""
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47 private boolean modified = false; // used to delay screen change notifications
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48 private boolean moved = false; // used to delay cursor moved notifications
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49 private int to_line = 0; // ""
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50 private int to_column = 0; // ""
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51 private HashMap<Integer, Integer> keymap = null; // map MS VK_ keys to vt320 virtual keys
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52 private IBinder bound = null;
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53 private Socket monitor_socket = null;
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54 private InputStream monitor_in = null;
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55 private OutputStream monitor_out = null;
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56 private MyReader monitor_reader = null;
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57 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100);
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58 private MyServiceConnection monitor_connection = new MyServiceConnection();
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59
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60 class MyReader extends Thread {
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61 private InputStream monitor_in;
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62 private byte[] b;
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63 private boolean is_closing = false;
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64
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65 public MyReader(InputStream monitor_in) {
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66 this.monitor_in = monitor_in;
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67 b = new byte[100];
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68 Log.i(TAG, "MyReader constructor");
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69 }
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70
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71 public void closing() {
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72 is_closing = true;
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73 }
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74
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75 private char[] forceRead(int len) throws IOException {
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76 int len2 = len * 2;
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77 int off = 0;
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78
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79 if (b.length < len2) b = new byte[len2];
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80
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81 while (off < len2) {
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82 int l = monitor_in.read(b, off, len2 - off);
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83
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84 if (l < 0) throw new IOException("eof");
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85
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86 off += l;
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87 }
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88
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89 return bytesToChars(b, len2);
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90 }
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91
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92 public void run() {
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93 while (true) {
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94 try {
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95 char[] len = forceRead(1);
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96 char[] packet = forceRead(len[0]);
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97 char cmd = packet[0];
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98 Log.i(TAG, String.format("received %d command", (int)cmd));
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99
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100 switch (cmd) {
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101 case MONITOR_CMD_SETFIELD:
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102 if (packet.length >= 4)
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103 setField(packet[1], packet[2], packet, 3);
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104
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105 break;
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106
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107 case MONITOR_CMD_GETFIELD:
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108 if (packet.length == 4)
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109 getField(packet[1], packet[2], packet[3]);
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110
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111 break;
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112
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113 case MONITOR_CMD_SCREENWATCH:
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114 if (packet.length == 4)
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115 screenWatch(packet[1], packet[2], packet[3]);
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116
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117 break;
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118
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119 case MONITOR_CMD_DEPRESS:
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120 if (packet.length == 2)
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121 depress(packet[1]);
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122
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123 break;
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124
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125 default:
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126 break;
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127 }
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128 }
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129 catch (IOException e) {
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130 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e);
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131
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132 break;
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133 }
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134 }
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135 }
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136 }
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137
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138 class MyServiceConnection implements ServiceConnection {
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139 public void onServiceConnected(ComponentName className, IBinder service) {
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140 bound = service;
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141 Log.i(TAG, "bound to service");
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142
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143 try {
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144 InetAddress serverAddr = InetAddress.getByName(LOCALHOST);
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145 monitor_socket = new Socket(serverAddr, MONITORPORT);
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146 monitor_in = monitor_socket.getInputStream();
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147 monitor_out = monitor_socket.getOutputStream();
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148 Log.i(TAG, "connected to monitor socket, send init " + init);
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149 monitor_reader = new MyReader(monitor_in);
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150 monitor_reader.start();
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151 String x = " " + init;
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152 monitorWrite(MONITOR_CMD_INIT, x.toCharArray());
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153 char [] c;
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154
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155 while (true) {
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156 c = pending_commands.poll();
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157
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158 if (c == null) break;
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159
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160 monitorWrite(c[1], c);
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161 }
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162 }
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163 catch (IOException e) {
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164 Log.e(TAG, "exception in onServiceConnected()", e);
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165 }
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166 }
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167 public void onServiceDisconnected(ComponentName classNam) {
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168 bound = null;
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169 Log.i(TAG, "unbound from service");
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170 }
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171 };
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172
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173
113
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174 public TerminalMonitor(Context parent, vt320 buffer, View view, String init) {
0
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175 this.parent = parent;
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176 this.buffer = buffer;
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177 this.view = view;
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178 this.init = init;
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179 // setup the windows->android keymapping
19
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180 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731
112
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181 keymap = new HashMap<Integer, Integer>();
113
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182 keymap.put(0x08, vt320.KEY_BACK_SPACE); // vk_back
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183 keymap.put(0x09, vt320.KEY_TAB); // vk_tab
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184 keymap.put(0x0d, vt320.KEY_ENTER); // vk_return
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185 keymap.put(0x1b, vt320.KEY_ESCAPE); // vk_escape
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186 keymap.put(0x21, vt320.KEY_PAGE_UP); // vk_prior
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187 keymap.put(0x22, vt320.KEY_PAGE_DOWN); // vk_next
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188 keymap.put(0x23, vt320.KEY_END); // vk_end
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189 keymap.put(0x24, vt320.KEY_HOME); // vk_home
cb3b9b660b3d depress() keys from the terminal monitor go straight thru buffer.keyPressed() rather than detour though the key listener
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190 keymap.put(0x25, vt320.KEY_LEFT); // vk_left
cb3b9b660b3d depress() keys from the terminal monitor go straight thru buffer.keyPressed() rather than detour though the key listener
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191 keymap.put(0x26, vt320.KEY_UP); // vk_up
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192 keymap.put(0x27, vt320.KEY_RIGHT); // vk_right
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193 keymap.put(0x28, vt320.KEY_DOWN); // vk_down
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194 keymap.put(0x2d, vt320.KEY_INSERT); // vk_insert
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195 keymap.put(0x2e, vt320.KEY_DELETE); // vk_delete
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parents: 112
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196 keymap.put(0x70, vt320.KEY_F1); // vk_f1
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197 keymap.put(0x71, vt320.KEY_F2); // vk_f2
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198 keymap.put(0x72, vt320.KEY_F3); // vk_f3
cb3b9b660b3d depress() keys from the terminal monitor go straight thru buffer.keyPressed() rather than detour though the key listener
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199 keymap.put(0x73, vt320.KEY_F4); // vk_f4
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200 keymap.put(0x74, vt320.KEY_F5); // vk_f5
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201 keymap.put(0x75, vt320.KEY_F6); // vk_f6
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202 keymap.put(0x76, vt320.KEY_F7); // vk_f7
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203 keymap.put(0x77, vt320.KEY_F8); // vk_f8
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parents: 112
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204 keymap.put(0x78, vt320.KEY_F9); // vk_f9
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parents: 112
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205 keymap.put(0x79, vt320.KEY_F10); // vk_f10
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parents: 112
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206 keymap.put(0x7a, vt320.KEY_F11); // vk_f11
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207 keymap.put(0x7b, vt320.KEY_F12); // vk_f12
0
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208 // bind to the monitor service
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209 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService");
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210 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE);
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211 Log.i(TAG, "constructor");
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212 }
0ce5cc452d02 initial version
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213
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214
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215 public void Disconnect() {
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216 if (monitor_reader != null) monitor_reader.closing();
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217
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diff changeset
218 try {
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219 if (monitor_out != null) monitor_out.close();
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220
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221 if (monitor_in != null) monitor_in.close();
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222
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Carl Byington <carl@five-ten-sg.com>
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223 if (monitor_socket != null) monitor_socket.close();
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224
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225 Log.i(TAG, "disconnected from monitor socket");
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226 }
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diff changeset
227 catch (IOException e) {
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228 Log.e(TAG, "exception in Disconnect() closing sockets", e);
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229 }
0ce5cc452d02 initial version
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parents:
diff changeset
230
0ce5cc452d02 initial version
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231 monitor_reader = null;
0ce5cc452d02 initial version
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232 monitor_out = null;
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233 monitor_in = null;
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234 monitor_socket = null;
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235
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diff changeset
236 if (bound != null) parent.unbindService(monitor_connection);
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237
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238 monitor_connection = null;
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239 }
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240
0ce5cc452d02 initial version
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241
0ce5cc452d02 initial version
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242 public char[] bytesToChars(byte[] b, int len) {
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parents:
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243 char[] c = new char[len >> 1];
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244 int bp = 0;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
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245
0ce5cc452d02 initial version
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diff changeset
246 for (int i = 0; i < c.length; i++) {
0ce5cc452d02 initial version
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diff changeset
247 byte b1 = b[bp++];
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
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diff changeset
248 byte b2 = b[bp++];
0ce5cc452d02 initial version
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249 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF));
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250 }
0ce5cc452d02 initial version
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diff changeset
251
0ce5cc452d02 initial version
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parents:
diff changeset
252 return c;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
253 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
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diff changeset
254
0ce5cc452d02 initial version
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diff changeset
255
0ce5cc452d02 initial version
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parents:
diff changeset
256 public byte[] charsToBytes(char[] c) {
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parents:
diff changeset
257 byte[] b = new byte[c.length << 1];
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parents:
diff changeset
258 int bp = 0;
0ce5cc452d02 initial version
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parents:
diff changeset
259
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parents:
diff changeset
260 for (int i = 0; i < c.length; i++) {
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parents:
diff changeset
261 b[bp++] = (byte)((c[i] & 0xff00) >> 8);
0ce5cc452d02 initial version
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parents:
diff changeset
262 b[bp++] = (byte)(c[i] & 0x00ff);
0ce5cc452d02 initial version
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parents:
diff changeset
263 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
264
0ce5cc452d02 initial version
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parents:
diff changeset
265 return b;
0ce5cc452d02 initial version
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parents:
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266 }
0ce5cc452d02 initial version
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parents:
diff changeset
267
0ce5cc452d02 initial version
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parents:
diff changeset
268
0ce5cc452d02 initial version
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parents:
diff changeset
269 public synchronized void monitorWrite(char cmd, char[] c) {
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parents:
diff changeset
270 try {
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parents:
diff changeset
271 if (monitor_out != null) {
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272 c[0] = (char)(c.length - 1); // number of chars following
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273 c[1] = cmd;
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parents:
diff changeset
274 //Log.i(TAG, String.format("sending %d command", (int)cmd));
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diff changeset
275 monitor_out.write(charsToBytes(c));
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parents:
diff changeset
276 }
15
1588e359a972 queue pending monitor commands until socket is open
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parents: 0
diff changeset
277 else {
1588e359a972 queue pending monitor commands until socket is open
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parents: 0
diff changeset
278 c[1] = cmd;
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
279 pending_commands.put(c);
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
280 }
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
281 }
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
282 catch (InterruptedException e) {
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
283 Log.e(TAG, "exception in monitorWrite()", e);
0
0ce5cc452d02 initial version
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parents:
diff changeset
284 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
285 catch (IOException e) {
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parents:
diff changeset
286 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e);
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parents:
diff changeset
287
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parents:
diff changeset
288 try {
0ce5cc452d02 initial version
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parents:
diff changeset
289 monitor_out.close();
0ce5cc452d02 initial version
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parents:
diff changeset
290 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
291 catch (IOException ee) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
292 Log.e(TAG, "exception in monitorWrite() closing output stream", ee);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
293 }
0ce5cc452d02 initial version
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parents:
diff changeset
294
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parents:
diff changeset
295 monitor_out = null;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
296 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
297 };
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
298
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
299 public void sendScreen(char cmd) {
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
300 char lines = (char)(buffer.height & 0x0000ffff);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
301 char columns = (char)(buffer.width & 0x0000ffff);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
302 char[] arg = new char[4 + lines * columns];
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
303 arg[2] = lines;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
304 arg[3] = columns;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
305 int base = 4;
112
77ac18bc1b2f cleanup java formatting
Carl Byington <carl@five-ten-sg.com>
parents: 101
diff changeset
306
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
307 for (int i = 0; i < lines; i++) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
308 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
309 base += columns;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
310 }
112
77ac18bc1b2f cleanup java formatting
Carl Byington <carl@five-ten-sg.com>
parents: 101
diff changeset
311
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
312 monitorWrite(cmd, arg);
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313 }
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314
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315 public synchronized void activate() {
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316 sendScreen(MONITOR_CMD_ACTIVATE);
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317 }
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318
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319 public synchronized void hostData(byte[] b) {
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320 for (int i = 0; i < b.length; i++) {
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321 hostData((int)b[i] & 0xff);
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322 }
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323 }
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324
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325 public synchronized void hostData(int b) {
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326 char[] arg = new char[3];
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327 arg[2] = (char)(b & 0x0000ffff);
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328 monitorWrite(MONITOR_CMD_HOSTDATA, arg);
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329 }
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330
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331 public synchronized void cursorMove(int l, int c) {
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332 moved = true;
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333 to_line = l;
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334 to_column = c;
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335 }
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336
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337 public void cursorMoved() {
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338 char[] arg = new char[4];
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339 arg[2] = (char)(to_line & 0x0000ffff);
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340 arg[3] = (char)(to_column & 0x0000ffff);
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341 monitorWrite(MONITOR_CMD_CURSORMOVE, arg);
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342 }
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343
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344 public synchronized void testChanged() {
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345 if (modified) {
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346 modified = false;
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347 sendScreen(MONITOR_CMD_SCREENCHANGE);
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348 }
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349
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350 if (moved) {
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351 moved = false;
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352 cursorMoved();
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353 }
0
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354 }
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355
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356 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) {
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357 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) {
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358 modified = true;
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359 }
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360 }
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361
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362 public synchronized void screenChanged(int l, int c) {
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363 screenChanged(l, l, c, c);
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364 }
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365
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366 public synchronized void setField(int l, int c, char[] data, int offset) {
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367 Log.i(TAG, "setField()");
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368 char[] da = new char[data.length - offset];
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369 int i;
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370
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371 for (i = 0; i < da.length; i++) {
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372 da[i] = data[i + offset];
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373 }
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374
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375 buffer.setField(l, c, da);
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376 }
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377
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378 public synchronized void getField(int l, int c, int len) {
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379 Log.i(TAG, "getField()");
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380 char[] arg2 = new char[4 + len];
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381 arg2[2] = (char)(l & 0x0000ffff);
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382 arg2[3] = (char)(c & 0x0000ffff);
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383 int base = 4;
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384 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len);
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385 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2);
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386 }
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387
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388 public synchronized void screenWatch(int l, int c, int len) {
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389 Log.i(TAG, "screenWatch()");
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390 start_line = l;
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391 end_line = l;
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392 start_column = c;
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393 end_column = c + len - 1;
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394 }
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395
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396 public synchronized void depress(int vk_key) {
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397 Log.i(TAG, String.format("depress() %d", vk_key));
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398 Integer x = keymap.get(new Integer(vk_key));
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399 if (x != null) buffer.keyPressed(x, ' ', 0);
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400 }
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401 }