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annotate mde/gui/widget/PopupMenu.d @ 117:aba2dd815a1f

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Some tweaks to popup events and widgets. Moved gui.mtt to guiDemo.mtt Changed handling of clicks with popups. Made some of the popup widgets use usual from widget data construction.
author Diggory Hardy <diggory.hardy@gmail.com>
date Fri, 26 Dec 2008 12:07:38 +0000
parents 1b1e2297e2fc
children d28aea50c6da
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rev   line source
108
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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
113
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16 /*************************************************************************************************
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17 * Pop-up menus based on content structures.
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18 *************************************************************************************************/
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19 module mde.gui.widget.PopupMenu;
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20
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21 import mde.gui.widget.Widget;
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22 import mde.gui.widget.textContent;
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23 import mde.gui.widget.TextWidget;
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24 import mde.gui.widget.layout;
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25
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26 import mde.content.miscContent;
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27 import mde.gui.exception;
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29 debug {
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30 import tango.util.log.Log : Log, Logger;
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31 private Logger logger;
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32 static this () {
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33 logger = Log.getLogger ("mde.gui.widget.PopupMenu");
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34 }
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35 }
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36
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37 /*************************************************************************************************
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38 * Widget which pops up a menu based on a content.
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39 *************************************************************************************************/
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40 class PopupMenuWidget : AParentSingleWidget
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41 {
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42 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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43 content = c;
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44 WDCMinCheck (data, 1,1, content);
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45 subWidget = mgr.makeWidget (data.strings[0], content);
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46
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47 adapter = mgr.renderer.getAdapter;
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48 adapter.text = content.toString (1);
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49 adapter.getDimensions (mw, mh);
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50 w = mw;
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51 h = mh;
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52 super (mgr, id, data);
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53 }
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54
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55 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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56 if (b == 1 && state == true) {
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57 // If active, the popup is closed by WidgetManager since the click isn't on the popup.
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58 if (!pushed) {
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59 pushed = true;
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60 mgr.addPopup (this, subWidget); // causes redraw
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61 mgr.addClickCallback (&openMenuCallback); // prevents first up-click from closing menu, if on self.
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62 }
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63 }
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64 return 0;
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65 }
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66
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67 override void popupClose () {
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68 pushed = false;
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69 }
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70 override bool popupParentClick () {
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71 pushed = false;
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72 return true;
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73 }
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74
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75 override void draw () {
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76 mgr.renderer.drawButton (x,y, w,h, pushed);
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77 adapter.draw (x,y);
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78 }
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79
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80 protected:
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81 bool openMenuCallback (wdabs cx, wdabs cy, ubyte b, bool state) {
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82 if (b == 1 && state == false) { // receive first up-click
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83 mgr.removeCallbacks (cast(void*) this);
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84 if (cx >= x && cx < x+w && cy >= y && cy < y+h)
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85 return true; // up-click is on self; don't close the menu
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86 }
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87 return false;
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88 }
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89 bool pushed = false;
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90 IRenderer.TextAdapter adapter;
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91 IContent content;
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92 }
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93
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94 /*************************************************************************************************
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95 * Widget which pops up a sub-menu based on a content on mouse-over.
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96 *************************************************************************************************/
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97 class SubMenuWidget : PopupMenuWidget
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98 {
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99 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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100 super (mgr, id, data, c);
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101 }
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102
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103 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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104 return 0;
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105 }
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106
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107 override void highlight (bool state) {
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108 if (state && !pushed) {
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109 pushed = true;
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110 mgr.addPopup (this, subWidget, 1); // causes redraw
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111 }
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112 }
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113 }
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114
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115 /*************************************************************************************************
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116 * A function which returns a ContentListWidget or MenuButtonContentWidget.
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117 *************************************************************************************************/
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118 IChildWidget flatMenuContent (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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119 if (c is null) throw new ContentException;
115
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120 if (cast(IContentList) c)
117
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121 return new ContentListWidget(mgr,id,data,c);
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122 else if (cast(EventContent) c)
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123 return new MenuButtonContentWidget(mgr,id,data,c);
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124 else // generic uneditable option
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125 return new DisplayContentWidget(mgr,id,data,c);
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126 }
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127
117
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128 /*************************************************************************************************
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129 * A function which returns a SubMenuWidget or MenuButtonContentWidget.
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130 *************************************************************************************************/
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131 IChildWidget subMenuContent (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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132 if (c is null) throw new ContentException;
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133 if (cast(IContentList) c)
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134 return new SubMenuWidget(mgr,id,data,c);
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135 else if (cast(EventContent) c)
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136 return new MenuButtonContentWidget(mgr,id,data,c);
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137 else // generic uneditable option
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138 return new DisplayContentWidget(mgr,id,data,c);
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139 }
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140
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141 /*************************************************************************************************
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142 * A menu content-button, like ButtonContentWidget, but which can be activated with the up-click.
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143 *************************************************************************************************/
113
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144 class MenuButtonContentWidget : ATextWidget
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145 {
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146 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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147 content = cast(EventContent) c;
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148 WDCMinCheck (data, 1,0, content);
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149 adapter = mgr.renderer.getAdapter ();
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150 super (mgr, id, data);
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151 }
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152
114
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153 override bool setup (uint n, uint flags) {
113
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154 if (!(flags & 3)) return false; // string or renderer (and possibly font) changed
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155 adapter.text = content.toString(1);
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156 return super.setup (n, 3); // force redimensioning
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157 }
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158
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159 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
113
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160 if (b == 1) { // on up or down click
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161 pushed = false;
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162 mgr.requestRedraw;
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163 content.endEvent;
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164 }
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165 return 0;
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166 }
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167
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168 override void highlight (bool state) {
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169 pushed = state;
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170 }
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171
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172 override void draw () {
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173 mgr.renderer.drawButton (x,y, w,h, pushed);
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174 adapter.draw (x,y);
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175 }
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176
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177 protected:
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178 EventContent content;
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179 bool pushed;
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180 }