net/systemeD/potlatch2/mapfeatures/editors/ChoiceEditor.mxml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <edit:SingleTagEditor
   3         xmlns:fx="http://ns.adobe.com/mxml/2009"
   4         xmlns:mx="library://ns.adobe.com/flex/mx"
   5         xmlns:s="library://ns.adobe.com/flex/spark"
   6         xmlns:edit="net.systemeD.potlatch2.mapfeatures.editors.*"
   7         toolTip="{fieldDescription}"
   8     direction="{fieldDirection}" styleName="titledEditor">
   9
  10   <mx:Label text="{fieldName}:"/>
  11   <s:DropDownList id="inputBox" dataProvider="{choices}" selectedItem="{selectFromTag}"
  12       change="value = inputBox.selectedItem.value" labelField="label">
  13       <s:itemRenderer>
  14         <fx:Component>
  15         <mx:HBox toolTip="{data.description}" horizontalScrollPolicy="off">
  16           <mx:Image source="{Choice(data).icon}"/>
  17           <mx:Label htmlText="{getStyledLabel(Choice(data))}"/>
  18                         <fx:Script><![CDATA[
  19                               public function getStyledLabel(choice:Choice):String {
  20                                   if (choice.value==null) return "<font color='#a0a0a0'><i>"+choice.label+"</i></font>";
  21                                   return choice.label;
  22                                   }
  23                         ]]></fx:Script>
  24         </mx:HBox>
  25         </fx:Component>
  26       </s:itemRenderer>
  27   </s:DropDownList>
  28
  29   <fx:Script><![CDATA[
  30       import mx.collections.*;
  31       import mx.utils.*;
  32       import net.systemeD.potlatch2.mapfeatures.Feature;
  33
  34       private var _choices:ArrayCollection = null;
  35       private var _unknownChoice:Choice = null;
  36
  37       [Bindable(event="factory_set")]
  38       protected function get choices():ArrayCollection {
  39           var dummy:String=_factory.key;                // otherwise _factory is null, for some not yet discovered reason.
  40           if ( _choices == null ) {
  41               _choices = new ArrayCollection();
  42               for each ( var choice:Choice in ChoiceEditorFactory(_factory).choices ) {
  43                   _choices.addItem(choice);
  44               }
  45               _choices.addItem(createUnsetChoice());
  46           }
  47           return _choices;
  48       }
  49
  50       [Bindable(event="tag_changed")]
  51       protected function get selectFromTag():Object {
  52           var tagValue:String = value;
  53           for each(var choice:Choice in choices) {
  54               if ( choice.isTagMatch(tagValue) )
  55                   return choice;
  56           }
  57
  58           // set up the unknown choice
  59           if ( _unknownChoice == null ) {
  60               _unknownChoice = new Choice();
  61               _unknownChoice.description = "Unknown value";
  62               _choices.addItem(_unknownChoice);
  63           }
  64           _unknownChoice.label = "<i>Unknown:</i> "+Feature.htmlEscape(tagValue);
  65           _unknownChoice.icon = null;
  66           _unknownChoice.value = tagValue;
  67
  68           return _unknownChoice;
  69       }
  70
  71       private function createUnsetChoice():Choice {
  72           var choice:Choice = new Choice();
  73           choice.icon = null;
  74           choice.description = "Field not set";
  75           choice.label = "Unset";
  76           choice.value = null;
  77           return choice;
  78       }
  79   ]]></fx:Script>
  80 </edit:SingleTagEditor>
  81