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Fixed a bug where (non-resizible) widgets wouldn't get shrunk when minimal size decreases, meaning optional context menus are hiden properly now. Optimised when ServiceContentList.opCall is called, I think without breaking anything.
author Diggory Hardy <diggory.hardy@gmail.com>
date Tue, 15 Sep 2009 20:09:59 +0200
parents e45226d3deae
children
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2009 Diggory Hardy
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4
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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15
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16 /******************************************************************************
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17 * The content system − interfaces and base Content class.
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18 *****************************************************************************/
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19 module mde.content.Content;
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20
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21 public import mde.content.IContent;
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22 import mde.content.Translation; // loading strings
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23 import mde.content.ValueCache; // saving/loading content values
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24 import util = mde.util; // fp -> dlg
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25 import mde.exception;
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26 import mde.setup.logger;
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27
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28 import tango.util.log.Log : Log, Logger;
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29 private Logger logger;
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30 static this () {
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31 logger = Log.getLogger ("mde.gui.content.Content");
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32 }
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33
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34 /** Content lists. Impemented by EnumContent as well as ContentList. */
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35 interface IContentList : IContent
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36 {
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37 /** Return all sub-contents. */
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38 Content[] list ();
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40 /** Append x to the content list.
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41 *
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42 * Done automatically in creation, from symbol name, so don't call
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43 * externally. */
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44 void append (Content x);
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45 }
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46
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47
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48 /******************************************************************************
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49 * The base for most or all content classes.
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50 *
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51 * Includes generic callback support, toString implementation and symbol access.
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52 *
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53 * Derived classes should impement:
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54 * ---
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55 * this (char[] symbol, T val = /+ default value +/);
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56 * void opAssign (T val); // assign val, calling callbacks
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57 * T opCall (); // return value
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58 * alias opCall opCast;
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59 * void endEvent (); // extend to set new value in changed (if Content has a value)
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60 * ---
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61 *****************************************************************************/
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62 class Content : IContent
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63 {
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64 protected this (char[] symbol) {
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65 //debug logger.trace ("Creating a {}: {}", this, symbol);
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66 if (symbol in allContent)
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67 throw new ContentException ("Multiple content with symbol "~ symbol);
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68 allContent[symbol] = this;
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69 this.symbol = symbol;
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70
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71 // Name:
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72 auto l10nP = symbol in translations;
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73 if (l10nP)
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74 name (*l10nP);
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75 else
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76 name_ = symbol; // provide a temporary name
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77
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78 // Add to a parent list:
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79 ptrdiff_t i = symbol.length-1;
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80 while (i >= 0 && symbol[i] != '.')
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81 --i;
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82 IContentList parent;
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83 if (i <= 0) {
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84 if (symbol.length == 0)
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85 return; // special case: is tree (content tree root)
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86 parent = tree; // otherwise, use tree as root
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87 } else {
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88 char[] parentSym = symbol[0..i];
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89 Content* parObj = parentSym in allContent;
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90 if (parObj) { // existing object
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91 parent = cast(IContentList) *parObj;
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92 if (parent is null) { // it's not an IContentList!
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93 logger.warn ("{} is not an IContentList, but a child, {}, exists!", parentSym, symbol);
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94 return;
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95 }
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96 } else // no existing object
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97 parent = new ContentList (parentSym);
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98 }
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99 parent.append (this);
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100 //logger.trace ("Created: {}\t{}", symbol, this);
105
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101 }
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102
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103 void name (Translation.Entry e) {
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104 name_ = e.name;
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105 desc_ = e.desc;
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106 }
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107
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108 /** Add a callback. Callbacks are called on a change or event, in the order
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109 * added. */
170
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110 override IContent addCallback (void delegate (IContent) cb) {
110
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111 this.cb ~= cb;
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112 return this;
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113 }
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114 /// ditto
170
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115 override IContent addCallback (void function (IContent) cb) {
110
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116 this.cb ~= util.toDg (cb);
105
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117 return this;
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118 }
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119
137
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120 /** End of an event, e.g. a button release or end of an edit (calls callbacks).
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121 *
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122 * Content holding a value should override this, setting its new value in
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123 * changed as well as calling callbacks, e.g.:
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124 * ---
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125 * Content.changed.boolData[symbol] = val;
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126 * super();
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127 * --- */
165
bb2f1a76346d Fixed a few bugs; most notably changing the translation reloads the text on PopupMenuWidgets now.
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128 final void endEvent () {
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129 foreach (dg; cb) {
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130 debug logger.trace ("calling callback {}", dg.ptr);
110
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131 dg (this);
179
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132 }
105
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133 }
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134
162
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135 override char[] toString (uint i) {
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136 return i == 0 ? "No value"
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137 : i == 1 ? name_
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138 : i == 2 ? desc_
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139 : null;
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140 }
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141
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142 /** A naive implementation which assumes the passed content is
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143 * incompatible. */
163
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144 override bool set (IContent) {
162
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145 return false;
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146 }
167
620d4ea30228 Context menus: added a clipboard (functions accessible from main menu rather than context menu).
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147 /// ditto
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148 override void opAssign (char[]) {}
162
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149
105
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150 protected:
137
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151 char[] symbol;
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152 char[] name_, desc_; // translated name and description
170
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153 void delegate (IContent) cb[];
137
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154
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155 public static:
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156 /** Get Content with _symbol name symbol from the list of all content, or
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157 * null if no such Content exists. */
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158 Content get (char[] symbol) {
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159 auto p = symbol in allContent;
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160 if (p)
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161 return *p;
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162 logger.warn ("Content {} does not exist",symbol);
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163 return null;
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164 }
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165
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166 // Would use tango.container.HashMap, but mde.workaround2371 doesn't work here.
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167 Content[char[]] allContent; // all content hashed by symbol name
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168 ContentList tree; // tree of all content.
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169
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170 static this () {
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171 tree = new ContentList ("");
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172 }
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173
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174 package static:
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175 // Kept to set the value of other content as it is created:
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176 ValueCache loaded; // loaded values not matching any content created yet
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177 // The values in changed are what is written to file when saving:
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178 ValueCache changed; // changed values and values from local config file
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179
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180 Translation.Entry[char[]] translations;
105
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181 }
137
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182
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183 /** A generic way to handle a list of type IContent. */
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184 class ContentList : Content, IContentList
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185 {
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186 this (char[] symbol) {
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187 super (symbol);
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188 }
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189
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190 override Content[] list () {
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191 return list_;
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192 }
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193
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194 override void append (Content x) {
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195 list_ ~= x;
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196 }
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197
163
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diff changeset
198 override bool set (IContent c) {
162
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199 IContentList cl = cast (IContentList) c;
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200 if (cl !is null) {
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201 list_ = cl.list();
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202 return true;
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203 }
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204 return false;
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205 }
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206
137
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207 protected:
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208 final Content[] list_;
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209 }
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210
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211 /** Created on errors to display and log a message. */
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212 class ErrorContent : Content
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213 {
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214 this (char[] symbol, char[] msg) {
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diff changeset
215 super (symbol);
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diff changeset
216 this.msg = msg;
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diff changeset
217 logger.error (symbol ~ ": " ~ msg);
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218 }
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219
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
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220 override char[] toString (uint i) {
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
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221 return i == 0 ? msg
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
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222 : i == 1 ? name_
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
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223 : null;
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
parents: 126
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224 }
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
parents: 126
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225
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
parents: 126
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226 protected:
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
parents: 126
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227 char[] msg;
9f035cd139c6 BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Diggory Hardy <diggory.hardy@gmail.com>
parents: 126
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228 }