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annotate mde/gui/widget/PopupMenu.d @ 119:d28aea50c6da

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Basic edit cursor placement using the mouse. Moved textContent.d's contents into TextWidget.d.
author Diggory Hardy <diggory.hardy@gmail.com>
date Thu, 01 Jan 2009 14:52:09 +0000
parents aba2dd815a1f
children 5b37d0400732
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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 * 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.TextWidget;
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23 import mde.gui.widget.layout;
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24
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25 import mde.content.miscContent;
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26 import mde.gui.exception;
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27
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28 debug {
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29 import tango.util.log.Log : Log, Logger;
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30 private Logger logger;
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31 static this () {
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32 logger = Log.getLogger ("mde.gui.widget.PopupMenu");
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33 }
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34 }
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35
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36 /*************************************************************************************************
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37 * Widget which pops up a menu based on a content.
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38 *************************************************************************************************/
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39 class PopupMenuWidget : AParentSingleWidget
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40 {
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41 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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42 content = c;
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43 WDCMinCheck (data, 1,1, content);
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44 subWidget = mgr.makeWidget (data.strings[0], content);
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45
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46 adapter = mgr.renderer.getAdapter;
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47 adapter.text = content.toString (1);
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48 adapter.getDimensions (mw, mh);
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49 w = mw;
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50 h = mh;
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51 super (mgr, id, data);
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52 }
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53
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54 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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55 if (b == 1 && state == true) {
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56 // If active, the popup is closed by WidgetManager since the click isn't on the popup.
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57 if (!pushed) {
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58 pushed = true;
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59 mgr.addPopup (this, subWidget); // causes redraw
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60 mgr.addClickCallback (&openMenuCallback); // prevents first up-click from closing menu, if on self.
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61 }
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62 }
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63 return 0;
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64 }
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65
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66 override void popupClose () {
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67 pushed = false;
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68 }
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69 override bool popupParentClick () {
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70 pushed = false;
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71 return true;
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72 }
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73
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74 override void draw () {
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75 mgr.renderer.drawButton (x,y, w,h, pushed);
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76 adapter.draw (x,y);
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77 }
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78
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79 protected:
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80 bool openMenuCallback (wdabs cx, wdabs cy, ubyte b, bool state) {
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81 if (b == 1 && state == false) { // receive first up-click
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82 mgr.removeCallbacks (cast(void*) this);
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83 if (cx >= x && cx < x+w && cy >= y && cy < y+h)
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84 return true; // up-click is on self; don't close the menu
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85 }
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86 return false;
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87 }
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88 bool pushed = false;
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89 IRenderer.TextAdapter adapter;
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90 IContent content;
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91 }
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92
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93 /*************************************************************************************************
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94 * Widget which pops up a sub-menu based on a content on mouse-over.
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95 *************************************************************************************************/
117
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96 class SubMenuWidget : PopupMenuWidget
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97 {
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98 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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99 super (mgr, id, data, c);
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100 }
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101
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102 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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103 return 0;
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104 }
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105
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106 override void highlight (bool state) {
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107 if (state && !pushed) {
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108 pushed = true;
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109 mgr.addPopup (this, subWidget, 1); // causes redraw
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110 }
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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 * A function which returns a ContentListWidget or MenuButtonContentWidget.
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116 *************************************************************************************************/
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117 IChildWidget flatMenuContent (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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118 if (c is null) throw new ContentException;
115
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119 if (cast(IContentList) c)
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120 return new ContentListWidget(mgr,id,data,c);
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121 else if (cast(EventContent) c)
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122 return new MenuButtonContentWidget(mgr,id,data,c);
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123 else // generic uneditable option
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124 return new DisplayContentWidget(mgr,id,data,c);
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125 }
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126
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127 /*************************************************************************************************
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128 * A function which returns a SubMenuWidget or MenuButtonContentWidget.
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129 *************************************************************************************************/
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130 IChildWidget subMenuContent (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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131 if (c is null) throw new ContentException;
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132 if (cast(IContentList) c)
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133 return new SubMenuWidget(mgr,id,data,c);
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134 else if (cast(EventContent) c)
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135 return new MenuButtonContentWidget(mgr,id,data,c);
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136 else // generic uneditable option
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137 return new DisplayContentWidget(mgr,id,data,c);
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138 }
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139
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140 /*************************************************************************************************
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141 * A menu content-button, like ButtonContentWidget, but which can be activated with the up-click.
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142 *************************************************************************************************/
113
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143 class MenuButtonContentWidget : ATextWidget
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144 {
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145 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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146 content = cast(EventContent) c;
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147 WDCMinCheck (data, 1,0, content);
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148 adapter = mgr.renderer.getAdapter ();
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149 super (mgr, id, data);
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150 }
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151
114
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152 override bool setup (uint n, uint flags) {
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153 if (!(flags & 3)) return false; // string or renderer (and possibly font) changed
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154 adapter.text = content.toString(1);
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155 return super.setup (n, 3); // force redimensioning
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156 }
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157
114
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158 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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159 if (b == 1) { // on up or down click
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160 pushed = false;
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161 mgr.requestRedraw;
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162 content.endEvent;
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163 }
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164 return 0;
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165 }
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166
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167 override void highlight (bool state) {
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168 pushed = state;
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169 }
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170
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171 override void draw () {
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172 mgr.renderer.drawButton (x,y, w,h, pushed);
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173 adapter.draw (x,y);
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174 }
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175
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176 protected:
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177 EventContent content;
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178 bool pushed;
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179 }