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annotate mde/gui/widget/createWidget.d @ 85:56c0ddd90193

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Intermediate commit (not stable). Changes to init system.
author Diggory Hardy <diggory.hardy@gmail.com>
date Thu, 11 Sep 2008 11:33:51 +0100
parents ea58f277f487
children b525ff28774b
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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 /// GUI Widget module.
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17 module mde.gui.widget.createWidget;
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18
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19 import mde.gui.widget.Ifaces;
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20 import mde.gui.exception : WidgetDataException;
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21
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22 // Widgets to create:
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23 import mde.gui.widget.layout;
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24 import mde.gui.widget.miscWidgets;
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25 import mde.gui.widget.TextWidget;
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26 import mde.gui.widget.Floating;
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27 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.widget.createWidget");
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32 }
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33
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34 /** Create a widget.
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35 *
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36 * Usually called by the widget manager's makeWidget function.
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37 *
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38 * Widget created of type data.ints[0] (see enum WIDGET_TYPES), with one of the following CTORs:
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39 * ---
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40 * this (IWidgetManager mgr, WidgetData data);
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41 * // Called if (data.ints[0] & WIDGET_TYPES.TAKES_PARENT):
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42 * this (IWidgetManager mgr, WidgetData data, IParentWidget parent);
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43 * ---
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44 *************************************************************************************************/
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45 IChildWidget createWidget (IWidgetManager mgr, WidgetData data, IParentWidget parent)
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46 in {
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47 assert (mgr !is null, "createWidget: mgr is null");
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48 } body {
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49 if (data.ints.length < 1) {
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50 logger.error ("No int data; creating a debug widget");
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51 data.ints = [WIDGET_TYPE.Debug];
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52 }
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53 int type = data.ints[0]; // type is first element of data
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54
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55 //pragma (msg, binarySearch ("type", WIDGETS));
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56 mixin (binarySearch ("type", WIDGETS)); // creates widget by type: new XWidget (mgr, data [, parent]);
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57
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58 // Not returned a new widget...
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59 logger.error ("Bad widget type: {}; creating a debug widget instead.",type);
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60 return new DebugWidget (mgr, data);
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61 }
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63 /+ for converting to a char[] name (unused)
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64 static this() {
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65 WIDGET_NAMES = [
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66 FixedBlank : "FixedBlank",
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67 SizableBlank : "SizableBlank",
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68 Button : "Button",
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69 GridLayout : "GridLayout"
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70 ];
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71 }+/
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72
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73 private:
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74 /// Widget types.
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75 enum WIDGET_TYPE : int {
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76 TAKES_PARENT = 0x4000, // CTOR takes reference to its parent
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77 PARENT = 0x8000, // widget can have children
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78
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79 // Use widget names rather than usual capitals convention
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80 Unnamed = 0x0, // Only for use by widgets not created with createWidget
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81
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82 // blank: 0x1
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83 FixedBlank = 0x1,
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84 SizableBlank = 0x2,
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85 Debug = 0xF,
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86
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87 // buttons: 0x10
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88 Button = 0x10,
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89
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90 // content: 0x20
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91 Text = 0x21,
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92 Int = 0x22,
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93
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94 GridLayout = PARENT | 0x100,
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95 TrialContentLayout = PARENT | 0x110,
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96
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97 FloatingArea = PARENT | 0x200,
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98 }
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99
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100 //const char[][int] WIDGET_NAMES;
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101
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102 // Only used for binarySearch algorithm generation; must be ordered by numerical values.
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103 const char[][] WIDGETS = [
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104 "FixedBlank",
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105 "SizableBlank",
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106 "Debug",
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107 "Button",
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108 "Text",
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109 "Int",
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110 "GridLayout",
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111 "TrialContentLayout",
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112 "FloatingArea"];
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113
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114 /* Generates a binary search algorithm. */
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115 char[] binarySearch (char[] var, char[][] consts) {
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116 if (consts.length > 3) {
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117 return "if (" ~ var ~ " <= WIDGET_TYPE." ~ consts[$/2 - 1] ~ ") {\n" ~
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118 binarySearch (var, consts[0 .. $/2]) ~
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119 "} else {\n" ~
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120 binarySearch (var, consts[$/2 .. $]) ~
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121 "}\n";
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122 } else {
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123 char[] ret;
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124 foreach (c; consts) {
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125 ret ~= "if (" ~ var ~ " == WIDGET_TYPE." ~ c ~ ") {\n" ~
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56c0ddd90193 Intermediate commit (not stable). Changes to init system.
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126 " debug (mdeWidgets) logger.trace (\"Creating new "~c~"Widget.\");\n" ~
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ea58f277f487 Gui reorganization and changes; partial implementation of floating widgets.
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127 " static if (WIDGET_TYPE."~c~" & WIDGET_TYPE.TAKES_PARENT)\n" ~
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128 " return new " ~ c ~ "Widget (mgr, data, parent);\n" ~
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129 " else\n" ~
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130 " return new " ~ c ~ "Widget (mgr, data);\n" ~
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25cb7420dc91 A massive overhaul/rewrite for the gui's data management and setup code. Currently much that was working is broken.
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131 "} else ";
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052df9b2fe07 Allowed widget resizing, changed widget IDs and made Input catch any callback exceptions.
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132 }
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133 ret = ret[0..$-6] ~ '\n'; // remove last else
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134 return ret;
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135 }
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136 }