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annotate mde/gui/widget/ParentContent.d @ 144:66c58e5b0062

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Added a BoolContent-based collapsible widget.
author Diggory Hardy <diggory.hardy@gmail.com>
date Tue, 10 Feb 2009 12:57:09 +0000
parents 2ac3e0012788
children 783969f4665c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 * A pop-up widget and a switch (tab) widget (both parent widgets using
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18 * content).
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19 *****************************************************************************/
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20 module mde.gui.widget.ParentContent;
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22 import mde.gui.widget.AParentWidget;
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23 import mde.gui.widget.layout;
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24 import mde.content.AStringContent;
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25 import mde.gui.exception;
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26
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27 debug {
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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.widget.ParentContent");
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32 }
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33 }
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34
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35 /******************************************************************************
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36 * Widget which pops up a ContentListWidget created with its content.
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37 *
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38 * Is a button displaying a content string, just like DisplayContentWidget.
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39 *
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40 * Popped up widget is a ContentListWidget created from the same creation data.
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41 *****************************************************************************/
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42 class PopupMenuWidget : APopupParentWidget
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43 {
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44 this (IWidgetManager mgr, IParentWidget parent, widgetID id, WidgetData data, IContent c) {
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45 content = cast(Content)c;
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46 WDCMinCheck (data, 3,1, content);
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47 super (mgr, parent, id);
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48
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49 //popup = mgr.makeWidget (this, data.strings[0], content);
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50 popup = new ContentListWidget (mgr, this, id, data, c);
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51 subWidgets = [popup];
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52
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53 cIndex = data.ints[2];
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54 if (cIndex == 0)
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55 content.addCallback (&updateVal);
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56 adapter = mgr.renderer.getAdapter;
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57 adapter.text = content.toString (cIndex);
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58 adapter.getDimensions (mw, mh);
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59 w = mw;
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60 h = mh;
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61 }
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62
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63 override void recursionCheck (widgetID wID, IContent c) {
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64 if (wID is id && c is content)
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65 throw new WidgetRecursionException (wID);
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66 parent.recursionCheck (wID, c);
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67 }
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68
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69 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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70 if (b == 1 && state == true) {
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71 if (!pushed) {
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72 parentIPPW.addChildIPPW (this);
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73 parentIPPW.menuActive = true;
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74 if (popup.width != w && popup.minWidth <= w)
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75 popup.setWidth (w, -1); // neatness
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76 mgr.positionPopup (this, popup);
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77 pushed = true;
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78 } else if (!parentIPPW.parentMenuActive) { // if not a submenu
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79 parentIPPW.removeChildIPPW (this);
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80 }
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81 }
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82 return 0;
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83 }
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84
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85 override void removedIPPW () {
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86 super.removedIPPW;
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87 pushed = false;
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88 }
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90 override void underMouse (bool state) {
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91 if (state && !pushed && parentIPPW.menuActive) {
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92 parentIPPW.addChildIPPW (this);
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93 menuActive = true;
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94 if (parentIPPW.parentMenuActive)
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95 mgr.positionPopup (this, popup, 1);
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96 else {
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97 if (popup.width != w && popup.minWidth <= w)
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98 popup.setWidth (w, -1); // neatness
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99 mgr.positionPopup (this, popup);
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100 }
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101 pushed = true;
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102 }
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103 }
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104
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105 override void draw () {
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106 mgr.renderer.drawButton (x,y, w,h, pushed);
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107 adapter.draw (x,y);
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108 }
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109
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110 protected:
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111 void updateVal (Content) { // callback
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112 adapter.text = content.toString(cIndex);
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113 wdim omw = mw, omh = mh;
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114 adapter.getDimensions (mw, mh);
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115 if (omw != mw)
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116 parent.minWChange (this, mw);
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117 if (omh != mh)
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118 parent.minHChange (this, mh);
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119 }
113
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120 bool pushed = false;
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121 IRenderer.TextAdapter adapter;
138
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122 Content content;
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123 int cIndex;
113
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124 }
143
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125
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126 /** A "tab" widget: it doesn't display the tabs, but shows one of a number of
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127 * widgets dependant on an EnumContent.
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128 *
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129 * Sizability is set once. Min-size is updated when switching. */
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130 class SwitchWidget : AParentWidget
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131 {
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132 this (IWidgetManager mgr, IParentWidget parent, widgetID id, WidgetData data, IContent c) {
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133 super (mgr, parent, id);
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134 content = cast(EnumContent) c;
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135 if (content is null || (subWidgets.length = content.list.length) == 0)
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136 throw new ContentException (this);
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137 WDCheck (data, 1, subWidgets.length);
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138
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139 foreach (i,sc; content.list)
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140 subWidgets[i] = mgr.makeWidget (this, data.strings[i], sc);
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141 currentW = subWidgets[content()];
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142
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143 content.addCallback (&switchWidget);
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144 }
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145
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146 override bool setup (uint n, uint flags) {
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147 bool r = super.setup (n, flags);
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148 if (r) {
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149 mw = currentW.minWidth;
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150 mh = currentW.minHeight;
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151 w = currentW.width;
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152 h = currentW.height;
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153 static if (SIZABILITY & SIZABILITY_ENUM.START_TRUE)
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154 isWS = isHS = true;
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155 foreach (i,sc; content.list) {
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156 static if (SIZABILITY == SIZABILITY_ENUM.ANY_SUBWIDGETS) {
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157 isWS |= subWidgets[i].isWSizable;
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158 isHS |= subWidgets[i].isHSizable;
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159 } else static if (SIZABILITY == SIZABILITY_ENUM.ALL_SUBWIDGETS) {
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160 isWS &= subWidgets[i].isWSizable;
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161 isHS &= subWidgets[i].isHSizable;
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162 }
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163 }
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164 }
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165 return r;
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166 }
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167
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168 override void minWChange (IChildWidget widget, wdim nmw) {
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169 if (widget !is currentW) return;
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170 mw = nmw;
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171 parent.minWChange (this, nmw);
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172 }
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173 override void minHChange (IChildWidget widget, wdim nmh) {
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174 if (widget !is currentW) return;
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175 mh = nmh;
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176 parent.minHChange (this, nmh);
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177 }
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178
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179 override bool isWSizable () {
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180 return isWS;
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181 }
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182 override bool isHSizable () {
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183 return isHS;
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184 }
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185
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186 override void setWidth (wdim nw, int dir) {
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187 w = (nw >= mw ? nw : mw);
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188 currentW.setWidth (w, dir);
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189 }
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190 override void setHeight (wdim nh, int dir) {
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191 h = (nh >= mh ? nh : mh);
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192 currentW.setHeight (h, dir);
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193 }
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194
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195 override void setPosition (wdim nx, wdim ny) {
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196 x = nx;
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197 y = ny;
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198 currentW.setPosition (nx,ny);
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199 }
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200
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201 override IChildWidget getWidget (wdim cx, wdim cy) {
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202 return currentW.getWidget (cx, cy);
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203 }
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204
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205 override void draw () {
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206 currentW.draw;
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207 }
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208
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209 protected:
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210 // callback on content
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211 void switchWidget (Content) {
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212 currentW = subWidgets[content()];
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213 mw = currentW.minWidth;
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214 mh = currentW.minHeight;
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215 parent.minWChange (this, mw);
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216 parent.minHChange (this, mh);
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217 // Parent may change size. If it doesn't, we must set child's size.
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218 // We can't tell if it did, so do it (call will be fast if size isn't
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219 // changed anyway).
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220 currentW.setWidth (w, -1);
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221 currentW.setHeight (h, -1);
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222 currentW.setPosition (x,y);
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223 }
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224
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225 IChildWidget currentW;
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226 EnumContent content;
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227
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228 bool isWS, isHS; // no infrastructure for changing sizability, so need to fix it.
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229 }
144
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230
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231 /** A collapsible widget: shows/hides a child dependant on a BoolContent.
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232 *
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233 * Sizability is set once. Min-size is changed (but cannot force size to 0).
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234 *
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235 * Uses its content as a switch, which means content cannot be passed through.
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236 * A builtin button would improve this. */
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237 class CollapsibleWidget : AParentWidget
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238 {
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239 this (IWidgetManager mgr, IParentWidget parent, widgetID id, WidgetData data, IContent c) {
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240 super (mgr, parent, id);
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241 content = cast(BoolContent) c;
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242 WDCCheck (data, 1, 1, content);
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243
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244 subWidgets = [mgr.makeWidget (this, data.strings[0])];
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245
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246 content.addCallback (&collapse);
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247 }
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248
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249 override bool setup (uint n, uint flags) {
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250 bool r = super.setup (n, flags);
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251 if (r) {
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252 collapsed = content();
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253 if (!collapsed) {
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254 mw = subWidgets[0].minWidth;
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255 mh = subWidgets[0].minHeight;
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256 w = subWidgets[0].width;
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257 h = subWidgets[0].height;
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258 }
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259 }
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260 return r;
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261 }
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262
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263 override void minWChange (IChildWidget widget, wdim nmw) {
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264 debug assert (widget is subWidgets[0]);
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265 mw = nmw;
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266 parent.minWChange (this, nmw);
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267 }
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268 override void minHChange (IChildWidget widget, wdim nmh) {
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269 debug assert (widget is subWidgets[0]);
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270 mh = nmh;
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271 parent.minHChange (this, nmh);
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272 }
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273
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274 // Doesn't change:
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275 override bool isWSizable () {
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276 return subWidgets[0].isWSizable;
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277 }
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278 override bool isHSizable () {
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279 return subWidgets[0].isHSizable;
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280 }
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281
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282 override void setWidth (wdim nw, int dir) {
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283 w = (nw >= mw ? nw : mw);
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284 if (!collapsed) subWidgets[0].setWidth (w, dir);
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285 }
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286 override void setHeight (wdim nh, int dir) {
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287 h = (nh >= mh ? nh : mh);
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288 if (!collapsed) subWidgets[0].setHeight (h, dir);
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289 }
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290
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291 override void setPosition (wdim nx, wdim ny) {
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292 x = nx;
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293 y = ny;
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294 if (!collapsed) subWidgets[0].setPosition (nx,ny);
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295 }
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296
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297 override IChildWidget getWidget (wdim cx, wdim cy) {
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298 if (!collapsed)
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299 return subWidgets[0].getWidget (cx, cy);
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300 else return this;
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301 }
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302
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303 override void draw () {
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304 if (!collapsed) subWidgets[0].draw;
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305 }
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306
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307 protected:
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308 // callback on content
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309 void collapse (Content) {
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310 collapsed = content();
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311 if (collapsed) {
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312 mw = mh = 0;
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313 } else {
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314 mw = subWidgets[0].minWidth;
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315 mh = subWidgets[0].minHeight;
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316 }
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317 parent.minWChange (this, mw);
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318 parent.minHChange (this, mh);
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319 if (collapsed) return;
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320 // set incase parent didn't:
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321 subWidgets[0].setWidth (w, -1);
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322 subWidgets[0].setHeight (h, -1);
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323 subWidgets[0].setPosition (x,y);
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324 }
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325
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326 bool collapsed = false;
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327 BoolContent content;
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328 }