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1 package myVncClient;
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2 //
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3 // Copyright (C) 2001 HorizonLive.com, Inc. All Rights Reserved.
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4 // Copyright (C) 2001 Constantin Kaplinsky. All Rights Reserved.
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5 // Copyright (C) 2000 Tridia Corporation. All Rights Reserved.
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6 // Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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7 //
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8 // This is free software; you can redistribute it and/or modify
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9 // it under the terms of the GNU General Public License as published by
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10 // the Free Software Foundation; either version 2 of the License, or
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11 // (at your option) any later version.
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12 //
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13 // This software is distributed in the hope that it will be useful,
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14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 // GNU General Public License for more details.
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17 //
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18 // You should have received a copy of the GNU General Public License
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19 // along with this software; if not, write to the Free Software
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20 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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21 // USA.
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22 //
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23
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24 //
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25 // Options frame.
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26 //
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27 // This deals with all the options the user can play with.
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28 // It sets the encodings array and some booleans.
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29 //
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30
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31 import java.awt.*;
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32 import java.awt.event.*;
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33
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34 class OptionsFrame extends Frame
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35 implements WindowListener, ActionListener, ItemListener {
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36
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37 static String[] names = {
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38 "Encoding",
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39 "Compression level",
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40 "JPEG image quality",
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41 "Cursor shape updates",
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42 "Use CopyRect",
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43 "Restricted colors",
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44 "Mouse buttons 2 and 3",
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45 "View only",
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46 "Scale remote cursor",
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47 "Share desktop",
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48 };
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49
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50 static String[][] values = {
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51 { "Auto", "Raw", "RRE", "CoRRE", "Hextile", "Zlib", "Tight", "ZRLE" },
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52 { "Default", "1", "2", "3", "4", "5", "6", "7", "8", "9" },
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53 { "JPEG off", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" },
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54 { "Enable", "Ignore", "Disable" },
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55 { "Yes", "No" },
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56 { "Yes", "No" },
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57 { "Normal", "Reversed" },
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58 { "Yes", "No" },
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59 { "No", "50%", "75%", "125%", "150%" },
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60 { "Yes", "No" },
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61 };
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62
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63 final int
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64 encodingIndex = 0,
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65 compressLevelIndex = 1,
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66 jpegQualityIndex = 2,
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67 cursorUpdatesIndex = 3,
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68 useCopyRectIndex = 4,
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69 eightBitColorsIndex = 5,
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70 mouseButtonIndex = 6,
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71 viewOnlyIndex = 7,
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72 scaleCursorIndex = 8,
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73 shareDesktopIndex = 9;
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74
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75 Label[] labels = new Label[names.length];
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76 Choice[] choices = new Choice[names.length];
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77 Button closeButton;
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78 VncViewer viewer;
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79
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80
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81 //
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82 // The actual data which other classes look at:
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83 //
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84
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85 int preferredEncoding;
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86 int compressLevel;
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87 int jpegQuality;
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88 boolean useCopyRect;
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89 boolean requestCursorUpdates;
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90 boolean ignoreCursorUpdates;
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91
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92 boolean eightBitColors;
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93
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94 boolean reverseMouseButtons2And3;
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95 boolean shareDesktop;
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96 boolean viewOnly;
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97 int scaleCursor;
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98
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99 boolean autoScale;
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100 int scalingFactor;
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101
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102 //
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103 // Constructor. Set up the labels and choices from the names and values
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104 // arrays.
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105 //
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106
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107 OptionsFrame(VncViewer v) {
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108 super("TightVNC Options");
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109
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110 viewer = v;
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111
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112 GridBagLayout gridbag = new GridBagLayout();
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113 setLayout(gridbag);
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114
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115 GridBagConstraints gbc = new GridBagConstraints();
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116 gbc.fill = GridBagConstraints.BOTH;
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117
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118 for (int i = 0; i < names.length; i++) {
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119 labels[i] = new Label(names[i]);
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120 gbc.gridwidth = 1;
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121 gridbag.setConstraints(labels[i],gbc);
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122 add(labels[i]);
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123
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124 choices[i] = new Choice();
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125 gbc.gridwidth = GridBagConstraints.REMAINDER;
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126 gridbag.setConstraints(choices[i],gbc);
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127 add(choices[i]);
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128 choices[i].addItemListener(this);
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129
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130 for (int j = 0; j < values[i].length; j++) {
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131 choices[i].addItem(values[i][j]);
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132 }
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133 }
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134
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135 closeButton = new Button("Close");
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136 gbc.gridwidth = GridBagConstraints.REMAINDER;
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137 gridbag.setConstraints(closeButton, gbc);
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138 add(closeButton);
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139 closeButton.addActionListener(this);
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140
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141 pack();
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142
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143 addWindowListener(this);
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144
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145 // Set up defaults
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146
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147 choices[encodingIndex].select("Auto");
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148 choices[compressLevelIndex].select("Default");
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149 choices[jpegQualityIndex].select("6");
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150 choices[cursorUpdatesIndex].select("Enable");
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151 choices[useCopyRectIndex].select("Yes");
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152 choices[eightBitColorsIndex].select("No");
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153 choices[mouseButtonIndex].select("Normal");
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154 choices[viewOnlyIndex].select("No");
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155 choices[scaleCursorIndex].select("No");
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156 choices[shareDesktopIndex].select("Yes");
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157
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158 // But let them be overridden by parameters
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159
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160 for (int i = 0; i < names.length; i++) {
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161 String s = viewer.readParameter(names[i], false);
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162 if (s != null) {
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163 for (int j = 0; j < values[i].length; j++) {
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164 if (s.equalsIgnoreCase(values[i][j])) {
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165 choices[i].select(j);
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166 }
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167 }
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168 }
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169 }
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170
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171 // FIXME: Provide some sort of GUI for "Scaling Factor".
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172
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173 autoScale = false;
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174 scalingFactor = 100;
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175 String s = viewer.readParameter("Scaling Factor", false);
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176 if (s != null) {
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177 if (s.equalsIgnoreCase("Auto")) {
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178 autoScale = true;
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179 } else {
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180 // Remove the '%' char at the end of string if present.
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181 if (s.charAt(s.length() - 1) == '%') {
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182 s = s.substring(0, s.length() - 1);
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183 }
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184 // Convert to an integer.
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185 try {
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186 scalingFactor = Integer.parseInt(s);
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187 }
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188 catch (NumberFormatException e) {
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189 scalingFactor = 100;
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190 }
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191 // Make sure scalingFactor is in the range of [1..1000].
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192 if (scalingFactor < 1) {
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193 scalingFactor = 1;
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194 } else if (scalingFactor > 1000) {
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195 scalingFactor = 1000;
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196 }
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197 }
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198 }
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199
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200 // Make the booleans and encodings array correspond to the state of the GUI
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201
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202 setEncodings();
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203 setColorFormat();
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204 setOtherOptions();
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205 }
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206
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207
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208 //
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209 // Disable the shareDesktop option
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210 //
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211
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212 void disableShareDesktop() {
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213 labels[shareDesktopIndex].setEnabled(false);
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214 choices[shareDesktopIndex].setEnabled(false);
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215 }
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216
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217 //
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218 // setEncodings looks at the encoding, compression level, JPEG
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219 // quality level, cursor shape updates and copyRect choices and sets
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220 // corresponding variables properly. Then it calls the VncViewer's
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221 // setEncodings method to send a SetEncodings message to the RFB
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222 // server.
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223 //
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224
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225 void setEncodings() {
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226 useCopyRect = choices[useCopyRectIndex].getSelectedItem().equals("Yes");
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227
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228 preferredEncoding = RfbProto.EncodingRaw;
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229 boolean enableCompressLevel = false;
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230
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231 if (choices[encodingIndex].getSelectedItem().equals("RRE")) {
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232 preferredEncoding = RfbProto.EncodingRRE;
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233 } else if (choices[encodingIndex].getSelectedItem().equals("CoRRE")) {
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234 preferredEncoding = RfbProto.EncodingCoRRE;
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235 } else if (choices[encodingIndex].getSelectedItem().equals("Hextile")) {
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236 preferredEncoding = RfbProto.EncodingHextile;
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237 } else if (choices[encodingIndex].getSelectedItem().equals("ZRLE")) {
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238 preferredEncoding = RfbProto.EncodingZRLE;
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239 } else if (choices[encodingIndex].getSelectedItem().equals("Zlib")) {
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240 preferredEncoding = RfbProto.EncodingZlib;
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241 enableCompressLevel = true;
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242 } else if (choices[encodingIndex].getSelectedItem().equals("Tight")) {
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243 preferredEncoding = RfbProto.EncodingTight;
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244 enableCompressLevel = true;
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245 } else if (choices[encodingIndex].getSelectedItem().equals("Auto")) {
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246 preferredEncoding = -1;
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247 }
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248
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249 // Handle compression level setting.
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250
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251 try {
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252 compressLevel =
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253 Integer.parseInt(choices[compressLevelIndex].getSelectedItem());
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254 }
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255 catch (NumberFormatException e) {
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256 compressLevel = -1;
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257 }
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258 if (compressLevel < 1 || compressLevel > 9) {
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259 compressLevel = -1;
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260 }
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261 labels[compressLevelIndex].setEnabled(enableCompressLevel);
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262 choices[compressLevelIndex].setEnabled(enableCompressLevel);
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263
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264 // Handle JPEG quality setting.
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265
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266 try {
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267 jpegQuality =
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268 Integer.parseInt(choices[jpegQualityIndex].getSelectedItem());
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269 }
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270 catch (NumberFormatException e) {
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271 jpegQuality = -1;
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272 }
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273 if (jpegQuality < 0 || jpegQuality > 9) {
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274 jpegQuality = -1;
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275 }
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276
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277 // Request cursor shape updates if necessary.
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278
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279 requestCursorUpdates =
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280 !choices[cursorUpdatesIndex].getSelectedItem().equals("Disable");
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281
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282 if (requestCursorUpdates) {
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283 ignoreCursorUpdates =
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284 choices[cursorUpdatesIndex].getSelectedItem().equals("Ignore");
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285 }
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286
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287 viewer.setEncodings();
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288 }
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289
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290 //
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291 // setColorFormat sets eightBitColors variable depending on the GUI
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292 // setting, causing switches between 8-bit and 24-bit colors mode if
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293 // necessary.
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294 //
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295
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296 void setColorFormat() {
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297
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298 eightBitColors =
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299 choices[eightBitColorsIndex].getSelectedItem().equals("Yes");
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300
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301 boolean enableJPEG = !eightBitColors;
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302
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303 labels[jpegQualityIndex].setEnabled(enableJPEG);
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304 choices[jpegQualityIndex].setEnabled(enableJPEG);
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305 }
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306
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307 //
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308 // setOtherOptions looks at the "other" choices (ones that do not
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309 // cause sending any protocol messages) and sets the boolean flags
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310 // appropriately.
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311 //
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312
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313 void setOtherOptions() {
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314
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315 reverseMouseButtons2And3
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316 = choices[mouseButtonIndex].getSelectedItem().equals("Reversed");
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317
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318 viewOnly
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319 = choices[viewOnlyIndex].getSelectedItem().equals("Yes");
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320 if (viewer.vc != null)
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321 viewer.vc.enableInput(!viewOnly);
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322
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323 shareDesktop
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324 = choices[shareDesktopIndex].getSelectedItem().equals("Yes");
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325
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326 String scaleString = choices[scaleCursorIndex].getSelectedItem();
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327 if (scaleString.endsWith("%"))
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328 scaleString = scaleString.substring(0, scaleString.length() - 1);
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329 try {
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330 scaleCursor = Integer.parseInt(scaleString);
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331 }
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332 catch (NumberFormatException e) {
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333 scaleCursor = 0;
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334 }
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335 if (scaleCursor < 10 || scaleCursor > 500) {
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336 scaleCursor = 0;
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337 }
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338 if (requestCursorUpdates && !ignoreCursorUpdates && !viewOnly) {
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339 labels[scaleCursorIndex].setEnabled(true);
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340 choices[scaleCursorIndex].setEnabled(true);
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341 } else {
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342 labels[scaleCursorIndex].setEnabled(false);
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343 choices[scaleCursorIndex].setEnabled(false);
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344 }
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345 if (viewer.vc != null)
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346 viewer.vc.createSoftCursor(); // update cursor scaling
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347 }
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348
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349
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350 //
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351 // Respond to actions on Choice controls
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352 //
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353
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354 public void itemStateChanged(ItemEvent evt) {
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355 Object source = evt.getSource();
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356
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357 if (source == choices[encodingIndex] ||
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358 source == choices[compressLevelIndex] ||
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359 source == choices[jpegQualityIndex] ||
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360 source == choices[cursorUpdatesIndex] ||
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361 source == choices[useCopyRectIndex]) {
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362
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363 setEncodings();
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364
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365 if (source == choices[cursorUpdatesIndex]) {
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366 setOtherOptions(); // update scaleCursor state
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367 }
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368
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369 } else if (source == choices[eightBitColorsIndex]) {
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370
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371 setColorFormat();
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372
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373 } else if (source == choices[mouseButtonIndex] ||
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374 source == choices[shareDesktopIndex] ||
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375 source == choices[viewOnlyIndex] ||
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376 source == choices[scaleCursorIndex]) {
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377
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378 setOtherOptions();
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379
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380 }
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381 }
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382
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383 //
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384 // Respond to button press
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385 //
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386
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387 public void actionPerformed(ActionEvent evt) {
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388 if (evt.getSource() == closeButton)
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389 setVisible(false);
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390 }
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391
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392 //
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393 // Respond to window events
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394 //
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395
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396 public void windowClosing(WindowEvent evt) {
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397 setVisible(false);
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398 }
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399
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400 public void windowActivated(WindowEvent evt) {}
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401 public void windowDeactivated(WindowEvent evt) {}
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402 public void windowOpened(WindowEvent evt) {}
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403 public void windowClosed(WindowEvent evt) {}
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404 public void windowIconified(WindowEvent evt) {}
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405 public void windowDeiconified(WindowEvent evt) {}
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406 }
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