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annotate mde/content/Items.d @ 128:41582439a42b

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Added support for dynamic EnumContent loading and saving, with translation loading. WMScreen.init removed; code moved to this() since class is now created by main() instead of a static this(). Fix for SwitchWidget not passing events. Still some resizing bugs evident in SwitchWidget :-(
author Diggory Hardy <diggory.hardy@gmail.com>
date Wed, 14 Jan 2009 20:24:14 +0000
parents c9843fbaac88
children 264028f4115a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
62
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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 © 2007-2008 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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42e241e7be3e ContentList content type; getting content items/lists from Options generically via content.Items, and a new addContent widget function. Several improvements to generic handling of content. New button-with-text widget.
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16 /**************************************************************************************************
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17 * A generic way to access content items. Also loads translations on-demand.
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18 *************************************************************************************************/
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19 module mde.content.Items;
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20
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21 import mde.content.miscContent;
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22 import mde.gui.exception;
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23
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24 import imde = mde.imde;
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25 import mde.lookup.Options;
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26 import mde.lookup.Translation;
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27
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28 debug {
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29 import tango.util.log.Log : Log, Logger;
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30 private Logger logger;
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31 static this () {
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32 logger = Log.getLogger ("mde.gui.content.Items");
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33 }
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34 }
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35
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36 /** Get a specific content item.
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37 *
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38 * loadTranslation() $(B must) be called before this function.
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39 *
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40 * E.g. get ("Options.MiscOptions.L10n") returns miscOpts.L10n,
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41 * Items.get ("Options.MiscOptions") returns a ContentList of all misc options. */
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42 Content get (char[] item) {
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43 assert (currentL10n is miscOpts.L10n(), "must call loadTranslation (code error)");
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44 char[] orig = item; // item is modified by head()
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45
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46 char[] h = head (item);
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47 if (h == "Options") {
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48 if (item is null)
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49 return Options.allContentList;
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50
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51 h = head (item);
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52 auto p = h in Options.optionsClasses;
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53 if (p) {
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54 if (item == null)
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55 return p.contentList;
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56
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57 auto q = (h = head (item)) in p.content;
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58 if (q && item is null) // enforce item is an exact match
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59 return *q;
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60 }
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61 } else if (h == "imde") {
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62 h = head (item);
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63 if (h == "menu" && item is null)
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64 return imde.menu;
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65 else if (h == "quit" && item is null)
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66 return imde.quit;
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67 } else if (h == "dynamic") {
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68 auto i = head (item) in items;
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69 if (i) return *i;
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70 }
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71
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72 return new ErrorContent ("Error: bad content specifier", orig);
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73 }
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74
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75 /** Creates some content on first run (required by get()).
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76 *
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77 * If the correct translation strings are not loaded, this loads them. */
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78 void loadTranslation () {
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79 if (currentL10n is miscOpts.L10n()) return;
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80
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81 // Create Option classes' ContentLists if necessary:
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82 if (Options.allContentList is null) {
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83 Content[] list;
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84 list.length = Options.optionsClasses.length;
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85 size_t i;
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86 foreach (n,opts; Options.optionsClasses) {
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87 opts.contentList = new ContentList (n, opts.content);
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88 list[i++] = opts.contentList;
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89 }
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90 Options.allContentList = new ContentList ("Options", list);
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91 }
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92
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93 Translation trl;
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94 Translation.Entry trle;
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95
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96 // Translate Options:
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97 with (Options.allContentList) {
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98 trle = Translation.get (symbol).getStruct (symbol);
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99 name (trle.name, trle.desc);
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100 }
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101 foreach (n,opts; Options.optionsClasses) {
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102 trl = Translation.get (n);
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103 trle = trl.getStruct (n);
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104 opts.contentList.name (trle.name, trle.desc);
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105 foreach (s, v; opts.content) {
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106 trle = trl.getStruct (s);
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107 v.name (trle.name, trle.desc);
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108 IContentList cl = cast(IContentList) v;
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109 if (cl) {
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110 foreach (i,c; cl.list) {
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111 trle = trl.getStruct (c.symbol);
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112 c.name (trle.name, trle.desc);
112
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113 }
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114 }
107
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115 }
103
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116 }
110
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117
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118 // Translate imde:
128
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119 trl = Translation.get ("imde");
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120 trle = trl.getStruct ("menu");
113
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121 imde.menu.name (trle.name, trle.desc);
128
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122 trle = trl.getStruct ("quit");
113
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123 imde.quit.name (trle.name, trle.desc);
128
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124
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125 // Translate dynamic content:
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126 if (items.length) {
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127 trl = Translation.get ("dynamic");
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128 foreach (n,item; items) {
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129 trle = trl.getStruct (n);
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130 item.name (trle.name, trle.desc);
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131 IContentList cl = cast(IContentList) item;
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132 if (cl) {
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133 foreach (i,c; cl.list) {
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134 trle = trl.getStruct (c.symbol);
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135 c.name (trle.name, trle.desc);
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136 }
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137 }
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138 }
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139 }
110
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140
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141 currentL10n = miscOpts.L10n();
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142 }
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143
128
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144 /** Add content c with name c.symbol, so that translations are loaded for it and it can be
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145 * returned by get ("dynamic."~c.symbol). */
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146 Content addContent (Content c) {
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147 items[c.symbol] = c;
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148 return c;
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149 }
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150
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151 private:
128
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152 // NOTE: possibly add all content to this list. Lookups would be faster.
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153 Content[char[]] items; // dynamically added content
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154
103
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155 /** Takes the string "head.tail" where tail may contain '.' but head does not, returns "head",
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156 * with str set to "tail". */
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157 char[] head (ref char[] str) {
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158 size_t i = 0;
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159 while (i < str.length && str[i] != '.')
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160 ++i;
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161 char[] ret = str[0..i];
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162 if (i == str.length)
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163 str = null;
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164 else
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165 str = str[i+1..$];
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166 return ret;
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167 }
104
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168
110
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169 char[] currentL10n; // Strings will be reloaded if this is not miscOpts.L10n().