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annotate mde/gui/WidgetDataSet.d @ 93:08a4ae11454b

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Widgets now save dimensions without preventing structural changes in the base config file from applying. Widget dimensional data separated from other data in files, hence above change. Moved TextAdapter from TextWidget to IRenderer.
author Diggory Hardy <diggory.hardy@gmail.com>
date Tue, 21 Oct 2008 11:35:15 +0100
parents 4d5d53e4f881
children 41582439a42b
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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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16 /*************************************************************************************************
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17 * Code to manage the data used to create widgets and save changes to it.
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18 *
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19 * When loading, a WidgetDataSet instance is loaded from file and its data used to create the
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20 * widgets. An empty WidgetDataChanges instance is also created.
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21 *
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22 * If any data requires changing, it is added to the WidgetDataChanges instance, which also
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23 * updates the the WidgetDataSet instance used to load the widgets (in case of a re-load from this
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24 * data). When the data should be saved, if the WidgetDataChanges instance is not empty, data from
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25 * the highest priority (i.e. the user) file is merged into it, preserving both the current
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26 * changes and previous changes saved to the use file, before saving to the user file.
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27 *************************************************************************************************/
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28 module mde.gui.WidgetDataSet;
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30 public import mde.gui.types;
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32 // For loading from file:
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33 import mt = mde.file.mergetag.DataSet;
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34 import mt = mde.file.mergetag.DefaultData;
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35 import mde.file.serialize;
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36 import tango.util.log.Log : Log, Logger;
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38 private Logger logger;
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39 static this () {
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40 logger = Log.getLogger ("mde.gui.WidgetDataSet");
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41 }
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42
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43 /*************************************************************************************************
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44 * Contains data for all widgets in a GUI.
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45 *************************************************************************************************/
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46 class WidgetDataSet : mt.IDataSection
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47 {
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48 //BEGIN Mergetag code
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49 void addTag (char[] tp, mt.ID id, char[] dt) {
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50 // Priority is HIGH_LOW. Only load tag if it doesn't already exist.
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51 if (tp == "WidgetData" && (id in widgetData) is null) {
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52 widgetData[id] = deserialize!(WidgetData) (dt);
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53 } else if (tp == "WDims" && (id in dimData) is null) {
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54 dimData[id] = cast(wdims) deserialize!(int[]) (dt);
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55 }
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56 }
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57 // Only WidgetDataChanges is used for writing.
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58 void writeAll (ItemDelg dlg) {}
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59 //END Mergetag code
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61 /** Get the widget data for widget i. */
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62 WidgetData opIndex (widgetID id) {
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63 auto p = id in widgetData;
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64 if (p is null) {
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65 logger.error ("No data for widget "~id~"; creating a debug widget instead.");
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66 return WidgetData.dbg;
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67 }
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68 return *p;
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69 }
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71 /** Get the widget dimensions for widget i (null if none). */
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72 wdims dims (widgetID id) {
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73 auto p = id in dimData;
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74 return p ? *p : null;
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75 }
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77 protected:
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78 WidgetData[widgetID] widgetData; // Per-widget data
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79 wdims[widgetID] dimData; // Per-widget sizes
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80 }
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82 /*************************************************************************************************
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83 * Contains changes to widget data.
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84 *
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85 * Can be read as normal and written.
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86 *************************************************************************************************/
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87 class WidgetDataChanges : WidgetDataSet
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88 {
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89 /**
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90 * Params:
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91 * wds = The base WidgetDataSet these changes are applied against. */
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92 this (WidgetDataSet wds) {
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93 base = wds;
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94 }
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95
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96 //BEGIN Mergetag code
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97 // HIGH_LOW priority of addTag allows existing entries (i.e. the changes) to be preserved while
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98 // other entries are read from files.
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99 void writeAll (ItemDelg dlg) {
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100 foreach (id,data; widgetData)
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101 dlg ("WidgetData", id, serialize!(WidgetData) (data));
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102 foreach (id,dim; dimData)
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103 dlg ("WDims", id, serialize!(int[]) (cast(int[]) dim));
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104 }
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105 //END Mergetag code
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106
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107 /** Set the widget data for widget i.
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108 */
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109 void opIndexAssign (WidgetData d, widgetID i) {
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110 widgetData[i] = d;
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111 base.widgetData[i] = d;
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112 }
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113
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114 /** Set the widget dimensions for widget i. */
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115 void setDims (widgetID id, wdims d) {
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116 dimData[id] = d;
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117 base.dimData[id] = d;
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118 }
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119
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120 /** Do any changes exist? True if no changes have been stored. */
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121 bool none () {
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122 return widgetData.length == 0;
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123 }
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124
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125 protected WidgetDataSet base;
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126 }