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1 /**
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2 * <p>Title: ScreenOIA.java</p>
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3 * <p>Description: Main interface to control Operator information area screen</p>
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4 * <p>Copyright: Copyright (c) 2000 - 2002</p>
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5 * <p>
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2, or (at your option)
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9 * any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this software; see the file COPYING. If not, write to
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18 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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19 * Boston, MA 02111-1307 USA
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20 * </p>
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21 * @author Kenneth J. Pouncey
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22 * @version 0.5
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23 */
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24 package org.tn5250j.framework.tn5250;
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25
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26 import java.util.Vector;
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27
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28 import org.tn5250j.event.ScreenOIAListener;
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29
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30 /**
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31 * The operator information area of a host session. This area is used to provide
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32 * status information regarding the state of the host session and location of
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33 * the cursor. A ScreenOIA object can be obtained using the GetOIA() method on
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34 * an instance of Screen5250.
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35 *
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36 *
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37 */
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38 public class ScreenOIA
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39 {
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40 // OIA_LEVEL
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41 public static final int OIA_LEVEL_INPUT_INHIBITED = 1;
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42 public static final int OIA_LEVEL_NOT_INHIBITED = 2;
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43 public static final int OIA_LEVEL_MESSAGE_LIGHT_ON = 3;
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44 public static final int OIA_LEVEL_MESSAGE_LIGHT_OFF = 4;
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45 public static final int OIA_LEVEL_AUDIBLE_BELL = 5;
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46 public static final int OIA_LEVEL_INSERT_MODE = 6;
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47 public static final int OIA_LEVEL_KEYBOARD = 7;
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48 public static final int OIA_LEVEL_CLEAR_SCREEN = 8;
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49 public static final int OIA_LEVEL_SCREEN_SIZE = 9;
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50 public static final int OIA_LEVEL_INPUT_ERROR = 10;
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51 public static final int OIA_LEVEL_KEYS_BUFFERED = 11;
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52 public static final int OIA_LEVEL_SCRIPT = 12;
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53
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54 // INPUTINHIBITED
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55 public static final int INPUTINHIBITED_NOTINHIBITED = 0;
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56 public static final int INPUTINHIBITED_SYSTEM_WAIT = 1;
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57 public static final int INPUTINHIBITED_COMMCHECK = 2;
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58 public static final int INPUTINHIBITED_PROGCHECK = 3;
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59 public static final int INPUTINHIBITED_MACHINECHECK = 4;
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60 public static final int INPUTINHIBITED_OTHER = 5;
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61
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62 public ScreenOIA (Screen5250 screen) {
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63
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64 source = screen;
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65
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66 }
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67
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68 public boolean isInsertMode() {
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69
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70 return insertMode;
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71 }
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72
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73 protected void setInsertMode(boolean mode) {
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74
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75 level = OIA_LEVEL_INSERT_MODE;
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76 insertMode = mode;
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77 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_INSERT_MODE);
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78 }
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79
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80 public int getCommCheckCode() {
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81
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82 return commCheck;
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83 }
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84
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85 public int getInputInhibited() {
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86
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87 return inputInhibited;
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88 }
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89
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90 public int getMachineCheckCode() {
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91
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92 return machineCheck;
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93 }
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94
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95 public int getOwner() {
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96 return owner;
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97 }
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98
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99 public int getProgCheckCode() {
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100 return 0;
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101 }
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102
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103 /**
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104 * Is the keyboard locked or not
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105 *
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106 * @return locked or not
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107 */
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108 public boolean isKeyBoardLocked() {
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109 return locked;
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110 }
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111
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112 public boolean isKeysBuffered() {
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113 return keysBuffered;
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114 }
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115
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116 public void setKeysBuffered(boolean kb) {
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117 level = OIA_LEVEL_KEYS_BUFFERED;
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118 boolean oldKB = keysBuffered;
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119 keysBuffered = kb;
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120 if (keysBuffered != oldKB)
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121 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_KEYS_BUFFERED);
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122 }
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123
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124 protected void setKeyBoardLocked(boolean lockIt) {
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125 level = OIA_LEVEL_KEYBOARD;
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126 boolean oldLocked = locked;
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127 locked = lockIt;
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128 if (!lockIt) {
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129
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130 if (isKeysBuffered()) {
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131 source.sendKeys("");
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132 }
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133 }
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134
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135 if (locked != oldLocked)
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136 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_KEYBOARD_LOCKED);
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137 }
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138
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139 public boolean isMessageWait() {
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140 return messageWait;
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141 }
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142
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143 protected void setMessageLightOn() {
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144 level = OIA_LEVEL_MESSAGE_LIGHT_ON;
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145 messageWait = true;
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146 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_MESSAGELIGHT);
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147 }
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148
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149 protected void setMessageLightOff() {
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150 level = OIA_LEVEL_MESSAGE_LIGHT_OFF;
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151 messageWait = false;
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152 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_MESSAGELIGHT);
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153 }
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154
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155 public void setScriptActive(boolean running) {
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156 level = OIA_LEVEL_SCRIPT;
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157 scriptRunning = running;
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158 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_SCRIPT);
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159 }
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160
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161 public boolean isScriptActive() {
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162 return scriptRunning;
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163 }
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164
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165 public void setAudibleBell() {
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166 level = OIA_LEVEL_AUDIBLE_BELL;
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167 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_BELL);
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168 }
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169
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170 protected void clearScreen() {
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171 level = OIA_LEVEL_CLEAR_SCREEN;
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172 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_CLEAR_SCREEN);
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173 }
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174
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175 /**
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176 * Add a ScreenOIAListener to the listener list.
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177 *
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178 * @param listener The ScreenOIAListener to be added
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179 */
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180 public void addOIAListener(ScreenOIAListener listener) {
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181
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182 if (listeners == null) {
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183 listeners = new java.util.Vector<ScreenOIAListener>(3);
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184 }
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185 listeners.addElement(listener);
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186
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187 }
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188
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189 /**
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190 * Remove a iOhioSessionListener from the listener list.
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191 *
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192 * @param listener The iOhioSessionListener to be removed
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193 */
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194 public void removeOIAListener(ScreenOIAListener listener) {
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195
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196 if (listeners == null) {
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197 return;
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198 }
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199 listeners.removeElement(listener);
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200 }
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201
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202 // object methods
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203 public Screen5250 getSource() {
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204
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205 return source;
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206 }
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207
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208
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209 public void setSource(Screen5250 screen) {
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210
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211 source = screen;
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212
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213 }
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214
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215 public void setOwner(int newOwner) {
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216
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217 owner = newOwner;
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218
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219 }
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220
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221 public int getLevel() {
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222
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223 return level;
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224 }
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225
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226 public String getInhibitedText() {
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227 return inhibitedText;
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228 }
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229
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230 public void setInputInhibited(int inhibit , int whatCode) {
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231 setInputInhibited(inhibit, whatCode, null);
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232 }
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233
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234 public void setInputInhibited(int inhibit , int whatCode, String message) {
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235
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236 inputInhibited = inhibit;
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237 level = OIA_LEVEL_INPUT_INHIBITED;
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238 inhibitedText = message;
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239
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240 // if (saveInhibit != inhibit || saveInhibitLevel != whatCode) {
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241 switch(inhibit) {
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242
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243 case INPUTINHIBITED_COMMCHECK :
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244 commCheck = whatCode;
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245 break;
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246 case INPUTINHIBITED_PROGCHECK :
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247 // progCheck = whatCode; // never used
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248 break;
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249 case INPUTINHIBITED_MACHINECHECK :
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250 machineCheck = whatCode;
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251 break;
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252 case INPUTINHIBITED_SYSTEM_WAIT :
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253 level = whatCode;
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254 break;
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255 case INPUTINHIBITED_NOTINHIBITED :
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256 level = whatCode;
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257 break;
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258 }
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259
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260 fireOIAChanged(ScreenOIAListener.OIA_CHANGED_INPUTINHIBITED);
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261 // }
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262 }
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263
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264 /**
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265 * Notify all registered listeners of the onOIAChanged event.
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266 *
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267 */
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268 private void fireOIAChanged(int change) {
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269
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270 if (listeners != null) {
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271 int size = listeners.size();
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272 for (int i = 0; i < size; i++) {
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273 ScreenOIAListener target =
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274 listeners.elementAt(i);
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275 target.onOIAChanged(this, change);
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276 }
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277 }
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278 }
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279
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280 private Vector<ScreenOIAListener> listeners = null;
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281 private boolean insertMode;
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282 private boolean locked;
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283 private boolean keysBuffered;
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284 private int owner = 0;
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285 private int level = 0;
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286 private Screen5250 source = null;
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287 private int commCheck = 0;
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288 private int machineCheck = 0;
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289 private boolean messageWait;
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290 private boolean scriptRunning;
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291 private int inputInhibited = INPUTINHIBITED_NOTINHIBITED;
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292 private String inhibitedText;
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293
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294 }
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