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annotate mde/gui/WMScreen.d @ 126:c9843fbaac88

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Dynamic minimal size changing improved; works over layouts sharing alignment. EnumContent sub-contents use EnumValueContent instead of BoolContent; fixes a few small bugs. EnumContent substrings get translated (bug fixed). The widget manager no longer attempts to set widget sizes smaller than their minimals, even though some will not be shown. SwitchWidget: has fixed sizableness now.
author Diggory Hardy <diggory.hardy@gmail.com>
date Thu, 08 Jan 2009 13:05:44 +0000
parents f96e8d18c00a
children 41582439a42b
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122
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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 gui manager class using mde.setup.Screen and mde.input.Input.
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18 *
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19 * This is the module to use externally to create a graphical user interface (likely also with
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20 * content modules).
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21 *************************************************************************************************/
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22 module mde.gui.WMScreen;
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23
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24 import mde.gui.WidgetManager;
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25 import mde.gui.widget.Ifaces;
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26 import mde.gui.renderer.createRenderer;
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27
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28 import mde.setup.Screen;
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29 import Items = mde.content.Items; // loadTranslation
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30 import mde.lookup.Options; // miscOpts.L10n callback
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31
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32 import tango.util.log.Log : Log, Logger;
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33
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34 private Logger logger;
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35 static this () {
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36 logger = Log.getLogger ("mde.gui.WMScreen");
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37 }
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38
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39 /*************************************************************************************************
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40 * The widget manager.
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41 *
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42 * This provides a layer on top of WidgetLoader, handling input and rendering. Other functionality
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43 * is contained in the super class, to simplify supporting new input/graphics libraries.
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44 *
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45 * Currently mouse coordinates are passed to widgets untranslated. It may make sense to translate
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46 * them and possibly drop events for some uses, such as if the gui is drawn to a texture.
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47 *
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48 * Aside from the IWidgetManager methods, this class should be thread-safe.
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49 *************************************************************************************************/
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50 scope class WMScreen : AWidgetManager, Screen.IDrawable {
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51 /** Construct a new widget manager.
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52 *
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53 * params:
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54 * fileName = Name of file specifying the gui, excluding path and extension.
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55 */
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56 this (char[] file) {
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57 super(file);
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58
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59 Screen.addDrawable (this);
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60 clickCallbacks = new typeof(clickCallbacks);
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61 motionCallbacks = new typeof(motionCallbacks);
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62 }
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63
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64 // this() runs during static this(), when imde.input doesn't exist. init() runs later.
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65 void init () {
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66 // Doesn't need a lock - cannot conflict with other class functions.
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67 // Events we want to know about:
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68 imde.input.addMouseClickCallback(&clickEvent);
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69 imde.input.addMouseMotionCallback(&motionEvent);
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70
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71 Items.loadTranslation ();
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72 miscOpts.L10n.addCallback (&reloadStrings);
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73 }
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74
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75
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76 /** Draw the gui. */
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77 void draw() {
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78 synchronized(mutex) {
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79 if (child)
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80 child.draw;
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81 foreach (popup; popups)
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82 popup.widget.draw();
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83 }
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84 }
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85
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86 /** For mouse click events.
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87 *
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88 * Sends the event on to the relevant windows and all click callbacks. */
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89 void clickEvent (ushort usx, ushort usy, ubyte b, bool state) {
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90 debug scope (failure)
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91 logger.warn ("clickEvent: failed!");
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92 mutex.lock;
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93 scope(exit) mutex.unlock;
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94 if (child is null) return;
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95
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96 wdabs cx = cast(wdabs) usx, cy = cast(wdabs) usy;
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97
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98 // 1. Callbacks have the highest priority recieving events (e.g. a button release)
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99 foreach (dg; clickCallbacks)
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100 if (dg (cx, cy, b, state)) return;
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101
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102 // 2. Then pop-ups: close from top, depending on click pos
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103 // Note: assumes each evaluated popup's parent is not under another still open popup.
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104 // Also assumes popup's parent doesn't have other children in its box.
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105 size_t removeTo = popups.length;
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106 bool eventDone; // don't pass clickEvent
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107 IChildWidget widg; // widget clicked on
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108 foreach_reverse (i,popup; popups) with (popup) {
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109 if (cx < x || cx >= x + w ||
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110 cy < y || cy >= y + h) { // on popup
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111 if (parent.onSelf (cx, cy)) {
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112 if (parent.popupParentClick()) removeTo = i;
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113 eventDone = true;
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114 break;
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115 } else {
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116 removeTo = i;
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117 parent.popupClose;
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118 }
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119 } else {
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120 widg = widget.getWidget (cast(wdabs)cx,cast(wdabs)cy);
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121 break;
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122 }
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123 }
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124 if (removeTo < popups.length) {
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125 requestRedraw;
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126 popups = popups[0..removeTo];
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127 }
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128 if (eventDone)
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129 return;
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130
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131 // 3. Then the main widget tree
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132 debug assert (cx < child.width && cy < child.height, "WidgetManager: child doesn't cover whole area (code error)");
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133 if (widg is null)
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134 widg = child.getWidget (cast(wdabs)cx,cast(wdabs)cy);
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135 if (keyFocus && keyFocus !is widg) {
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136 keyFocus.keyFocusLost;
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137 keyFocus = null;
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138 imde.input.setLetterCallback (null);
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139 }
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140 if (widg !is null) {
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141 if (widg.clickEvent (cast(wdabs)cx,cast(wdabs)cy,b,state) & 1) {
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142 keyFocus = widg;
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143 imde.input.setLetterCallback (&widg.keyEvent);
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144 }
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145 }
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146 }
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147
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148 /** For mouse motion events.
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149 *
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150 * Sends the event on to all motion callbacks. */
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151 void motionEvent (ushort scx, ushort scy) {
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152 debug scope (failure)
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153 logger.warn ("motionEvent: failed!");
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154 mutex.lock;
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155 scope(exit) mutex.unlock;
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156 wdabs cx = cast(wdabs) scx, cy = cast(wdabs) scy;
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157 foreach (dg; motionCallbacks)
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158 dg (cx, cy);
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159
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160 IChildWidget ohighlighted = highlighted;
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161 foreach_reverse (popup; popups) with (popup) {
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162 if (cx >= x && cx < x+w && cy >= y && cy < y+h) {
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163 highlighted = widget.getWidget (cx,cy);
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164 goto foundPopup;
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165 }
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166 }
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167 highlighted = null; // not over a popup
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168 foundPopup:
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169 if (ohighlighted != highlighted) {
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170 if (ohighlighted)
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171 ohighlighted.highlight (false);
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172 if (highlighted)
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173 highlighted.highlight (true);
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174 requestRedraw;
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175 }
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176 }
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177
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178
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179 void sizeEvent (int nw, int nh) { // IDrawable function
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180 mutex.lock;
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181 scope(exit) mutex.unlock;
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182
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183 w = cast(wdim) nw;
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184 h = cast(wdim) nh;
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185
126
c9843fbaac88 Dynamic minimal size changing improved; works over layouts sharing alignment.
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186 if (w < mw) {
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187 logger.warn ("Min width for gui, {}, not met: {}", mw, w);
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188 w = mw;
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189 }
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190 if (h < mh) {
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diff changeset
191 logger.warn ("Min height for gui, {}, not met: {}", mh, h);
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192 h = mh;
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193 }
122
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194
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195 if (!child) return; // if not created yet.
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196 child.setWidth (w, -1);
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197 child.setHeight (h, -1);
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198 child.setPosition (0,0);
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199 }
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200
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201 protected:
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202 /* Second stage of widget loading.
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203 * Note: sizeEvent should be called with window size before this. */
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204 final override void createRootWidget () {
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205 // The renderer needs to be created on the first load, but not after this.
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206 if (rend is null)
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207 rend = createRenderer (rendName);
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208 popups = null;
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209
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210 debug (mdeWidgets) logger.trace ("Creating root widget...");
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211 child = makeWidget (this, "root");
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212 debug (mdeWidgets) logger.trace ("Setting up root widget...");
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213 child.setup (0, 3);
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214
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215 mw = child.minWidth;
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216 mh = child.minHeight;
126
c9843fbaac88 Dynamic minimal size changing improved; works over layouts sharing alignment.
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diff changeset
217 if (w < mw) {
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diff changeset
218 logger.warn ("Min width for gui, {}, not met: {}", mw, w);
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diff changeset
219 w = mw;
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diff changeset
220 }
c9843fbaac88 Dynamic minimal size changing improved; works over layouts sharing alignment.
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diff changeset
221 if (h < mh) {
c9843fbaac88 Dynamic minimal size changing improved; works over layouts sharing alignment.
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diff changeset
222 logger.warn ("Min height for gui, {}, not met: {}", mh, h);
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diff changeset
223 h = mh;
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parents: 122
diff changeset
224 }
122
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225
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226 debug (mdeWidgets) logger.trace ("Setting size and position of root widget...");
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227 child.setWidth (w, -1);
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228 child.setHeight (h, -1);
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229 child.setPosition (0,0);
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230 debug (mdeWidgets) logger.trace ("Done creating root widget.");
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231 }
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232
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233 final override void preSave () {
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234 if (keyFocus) {
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235 keyFocus.keyFocusLost;
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236 keyFocus = null;
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Diggory Hardy <diggory.hardy@gmail.com>
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237 imde.input.setLetterCallback (null);
f96e8d18c00a Missed file from last commit.
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238 }
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diff changeset
239 }
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240 }