Mercurial > projects > mde
annotate mde/gui/widget/PopupMenu.d @ 125:3e648bc53bde
Added a simple switch/tab widget (depends on existing EnumContent).
author | Diggory Hardy <diggory.hardy@gmail.com> |
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date | Tue, 06 Jan 2009 16:54:04 +0000 |
parents | 5b37d0400732 |
children | 9cff74f68b84 |
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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, IParentWidget parent, 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 super (mgr, parent, id); |
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45 |
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46 subWidget = mgr.makeWidget (this, data.strings[0], content); |
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47 |
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48 adapter = mgr.renderer.getAdapter; |
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49 adapter.text = content.toString (1); |
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50 adapter.getDimensions (mw, mh); |
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51 w = mw; |
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52 h = mh; |
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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, IParentWidget parent, widgetID id, WidgetData data, IContent c) { |
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100 super (mgr, parent, 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, IParentWidget parent, widgetID id, WidgetData data, IContent c) { |
117
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119 if (c is null) throw new ContentException; |
115
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120 if (cast(IContentList) c) |
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121 return new ContentListWidget(mgr,parent,id,data,c); |
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122 if (cast(EventContent) c) |
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123 return new MenuButtonContentWidget(mgr,parent,id,data,c); |
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124 // generic uneditable option |
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125 return new DisplayContentWidget(mgr,parent,id,data,c); |
113
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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, IParentWidget parent, widgetID id, WidgetData data, IContent c) { |
117
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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,parent,id,data,c); |
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135 if (cast(EventContent) c) |
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136 return new MenuButtonContentWidget(mgr,parent,id,data,c); |
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137 // generic uneditable option |
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138 return new DisplayContentWidget(mgr,parent,id,data,c); |
117
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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 { |
121
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146 this (IWidgetManager mgr, IParentWidget parent, widgetID id, WidgetData, IContent c) { |
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147 content = cast(EventContent) c; |
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148 if (content is null) throw new ContentException (this); |
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149 adapter = mgr.renderer.getAdapter (); |
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150 super (mgr, parent, id); |
108
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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 |
114
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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 |
114
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168 override void highlight (bool state) { |
113
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169 pushed = state; |
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170 } |
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171 |
114
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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 } |