Mercurial > hg > Applications > TightVNC_orginal

annotate src/viewer_swing/java/com/glavsoft/viewer/swing/KeyEventListener.java @ 52:472a9bcacb21 draft default tip

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TightVNC 2.7.1.0
author you@cr.ie.u-ryukyu.ac.jp
date Wed, 07 Aug 2013 19:01:17 +0900
parents 4689cc86d6cb
children
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rev   line source
52
472a9bcacb21 TightVNC 2.7.1.0
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1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
0
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25 package com.glavsoft.viewer.swing;
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26
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27 import com.glavsoft.rfb.client.KeyEventMessage;
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28 import com.glavsoft.rfb.protocol.ProtocolContext;
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29
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30 import java.awt.event.KeyEvent;
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31 import java.awt.event.KeyListener;
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32
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33 import static com.glavsoft.utils.Keymap.*;
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34
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35 public class KeyEventListener implements KeyListener {
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36
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37
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38 private ModifierButtonEventListener modifierButtonListener;
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39 private boolean convertToAscii;
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40 private final ProtocolContext context;
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41 private KeyboardConvertor convertor;
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42
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43 public KeyEventListener(ProtocolContext context) {
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44 this.context = context;
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45 this.convertToAscii = false;
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46 }
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47
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48 private void processKeyEvent(KeyEvent e) {
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49 if (processModifierKeys(e)) return;
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50 if (processSpecialKeys(e)) return;
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51 if (processActionKey(e)) return;
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52
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53 int keyChar = e.getKeyChar();
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54 final int location = e.getKeyLocation();
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55 if (0xffff == keyChar) { keyChar = convertToAscii? convertor.convert(keyChar, e) : 0; }
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56 if (keyChar < 0x20) {
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57 if (e.isControlDown() && keyChar != e.getKeyCode()) {
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58 keyChar += 0x60; // to differ Ctrl-H from Ctrl-Backspace
0
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59 } else {
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60 switch (keyChar) {
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61 case KeyEvent.VK_BACK_SPACE: keyChar = K_BACK_SPACE; break;
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62 case KeyEvent.VK_TAB: keyChar = K_TAB; break;
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63 case KeyEvent.VK_ESCAPE: keyChar = K_ESCAPE; break;
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64 case KeyEvent.VK_ENTER:
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65 keyChar = KeyEvent.KEY_LOCATION_NUMPAD == location ? K_KP_ENTER : K_ENTER;
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66 break;
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67 }
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68 }
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69 } else if (KeyEvent.VK_DELETE == keyChar) {
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70 keyChar = K_DELETE;
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71 } else if (convertToAscii) {
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72 keyChar = convertor.convert(keyChar, e);
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73 } else {
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74 keyChar = unicode2keysym(keyChar);
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75 }
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76
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77 sendKeyEvent(keyChar, e);
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78 }
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79
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80
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81 /**
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82 * Process AltGraph, num pad keys...
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83 */
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84 private boolean processSpecialKeys(KeyEvent e) {
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85 int keyCode = e.getKeyCode();
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86 if (KeyEvent.VK_ALT_GRAPH == keyCode) {
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87 sendKeyEvent(K_CTRL_LEFT, e);
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88 sendKeyEvent(K_ALT_LEFT, e);
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89 return true;
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90 }
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91 switch (keyCode) {
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92 case KeyEvent.VK_NUMPAD0: keyCode = K_KP_0;break;
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93 case KeyEvent.VK_NUMPAD1: keyCode = K_KP_1;break;
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94 case KeyEvent.VK_NUMPAD2: keyCode = K_KP_2;break;
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95 case KeyEvent.VK_NUMPAD3: keyCode = K_KP_3;break;
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96 case KeyEvent.VK_NUMPAD4: keyCode = K_KP_4;break;
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97 case KeyEvent.VK_NUMPAD5: keyCode = K_KP_5;break;
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98 case KeyEvent.VK_NUMPAD6: keyCode = K_KP_6;break;
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99 case KeyEvent.VK_NUMPAD7: keyCode = K_KP_7;break;
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100 case KeyEvent.VK_NUMPAD8: keyCode = K_KP_8;break;
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101 case KeyEvent.VK_NUMPAD9: keyCode = K_KP_9;break;
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102
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103 case KeyEvent.VK_MULTIPLY: keyCode = K_KP_MULTIPLY;break;
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104 case KeyEvent.VK_ADD: keyCode = K_KP_ADD;break;
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105 case KeyEvent.VK_SEPARATOR: keyCode = K_KP_SEPARATOR;break;
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106 case KeyEvent.VK_SUBTRACT: keyCode = K_KP_SUBTRACT;break;
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107 case KeyEvent.VK_DECIMAL: keyCode = K_KP_DECIMAL;break;
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108 case KeyEvent.VK_DIVIDE: keyCode = K_KP_DIVIDE;break;
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109
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110 default: return false;
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111 }
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112 sendKeyEvent(keyCode, e);
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113 return true;
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114 }
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115
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116 private boolean processActionKey(KeyEvent e) {
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117 int keyCode = e.getKeyCode();
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118 final int location = e.getKeyLocation();
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119 if (e.isActionKey()) {
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120 switch (keyCode) {
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121 case KeyEvent.VK_HOME: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_HOME: K_HOME; break;
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122 case KeyEvent.VK_LEFT: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_LEFT: K_LEFT; break;
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123 case KeyEvent.VK_UP: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_UP: K_UP; break;
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124 case KeyEvent.VK_RIGHT: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_RIGHT: K_RIGHT; break;
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125 case KeyEvent.VK_DOWN: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_DOWN: K_DOWN; break;
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126 case KeyEvent.VK_PAGE_UP: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_PAGE_UP: K_PAGE_UP; break;
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127 case KeyEvent.VK_PAGE_DOWN: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_PAGE_DOWN: K_PAGE_DOWN; break;
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128 case KeyEvent.VK_END: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_END: K_END; break;
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129 case KeyEvent.VK_INSERT: keyCode = KeyEvent.KEY_LOCATION_NUMPAD == location? K_KP_INSERT: K_INSERT; break;
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130 case KeyEvent.VK_F1: keyCode = K_F1; break;
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131 case KeyEvent.VK_F2: keyCode = K_F2; break;
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132 case KeyEvent.VK_F3: keyCode = K_F3; break;
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133 case KeyEvent.VK_F4: keyCode = K_F4; break;
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134 case KeyEvent.VK_F5: keyCode = K_F5; break;
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135 case KeyEvent.VK_F6: keyCode = K_F6; break;
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136 case KeyEvent.VK_F7: keyCode = K_F7; break;
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137 case KeyEvent.VK_F8: keyCode = K_F8; break;
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138 case KeyEvent.VK_F9: keyCode = K_F9; break;
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139 case KeyEvent.VK_F10: keyCode = K_F10; break;
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140 case KeyEvent.VK_F11: keyCode = K_F11; break;
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141 case KeyEvent.VK_F12: keyCode = K_F12; break;
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142
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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143 case KeyEvent.VK_KP_LEFT: keyCode = K_KP_LEFT; break;
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144 case KeyEvent.VK_KP_UP: keyCode = K_KP_UP; break;
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145 case KeyEvent.VK_KP_RIGHT: keyCode = K_KP_RIGHT; break;
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146 case KeyEvent.VK_KP_DOWN: keyCode = K_KP_DOWN; break;
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147
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148 default: return false; // ignore other 'action' keys
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149 }
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150 sendKeyEvent(keyCode, e);
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151 return true;
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152 }
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153 return false;
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154 }
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155
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156 private boolean processModifierKeys(KeyEvent e) {
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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157 int keyCode = e.getKeyCode();
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
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158 switch (keyCode) {
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parents:
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159 case KeyEvent.VK_CONTROL: keyCode = K_CTRL_LEFT; break;
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parents:
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160 case KeyEvent.VK_SHIFT: keyCode = K_SHIFT_LEFT; break;
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
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161 case KeyEvent.VK_ALT: keyCode = K_ALT_LEFT; break;
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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162 case KeyEvent.VK_META: keyCode = K_META_LEFT; break;
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163 // follow two are 'action' keys in java terms but modifier keys actualy
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164 case KeyEvent.VK_WINDOWS: keyCode = K_SUPER_LEFT; break;
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165 case KeyEvent.VK_CONTEXT_MENU: keyCode = K_HYPER_LEFT; break;
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parents:
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166 default: return false;
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167 }
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168 if (modifierButtonListener != null) {
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169 modifierButtonListener.fireEvent(e);
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170 }
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171 sendKeyEvent(keyCode +
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172 (e.getKeyLocation() == KeyEvent.KEY_LOCATION_RIGHT ? 1 : 0), // "Right" Ctrl/Alt/Shift/Meta deffers frim "Left" ones by +1
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173 e);
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174 return true;
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175 }
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176
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177 private void sendKeyEvent(int keyChar, KeyEvent e) {
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178 context.sendMessage(new KeyEventMessage(keyChar, e.getID() == KeyEvent.KEY_PRESSED));
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179 }
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180
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181 @Override
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parents:
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182 public void keyTyped(KeyEvent e) {
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parents:
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183 e.consume();
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184 }
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parents:
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185
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186 @Override
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187 public void keyPressed(KeyEvent e) {
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parents:
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188 processKeyEvent(e);
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189 e.consume();
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190 }
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parents:
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191
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192 @Override
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
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193 public void keyReleased(KeyEvent e) {
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
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194 processKeyEvent(e);
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parents:
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195 e.consume();
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parents:
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196 }
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197
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198 public void addModifierListener(ModifierButtonEventListener modifierButtonListener) {
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199 this.modifierButtonListener = modifierButtonListener;
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parents:
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200 }
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201
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202 public void setConvertToAscii(boolean convertToAscii) {
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parents:
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203 this.convertToAscii = convertToAscii;
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
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204 if (convertToAscii && null == convertor) {
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parents:
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205 convertor = new KeyboardConvertor();
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parents:
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206 }
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parents:
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207 }
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parents:
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208
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209 }