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="{data.label}"/>
  18         </mx:HBox>
  19         </fx:Component>
  20       </s:itemRenderer>
  21   </s:DropDownList>
  22
  23   <fx:Script><![CDATA[
  24       import mx.collections.*;
  25       import mx.utils.*;
  26       import net.systemeD.potlatch2.mapfeatures.Feature;
  27
  28       private var _choices:ArrayCollection = null;
  29       private var _unknownChoice:Choice = null;
  30
  31       [Bindable(event="factory_set")]
  32       protected function get choices():ArrayCollection {
  33           if ( _choices == null ) {
  34               _choices = new ArrayCollection();
  35               for each ( var choice:Choice in ChoiceEditorFactory(_factory).choices )
  36                   _choices.addItem(choice);
  37               _choices.addItem(createUnsetChoice());
  38           }
  39           return _choices;
  40       }
  41
  42       [Bindable(event="tag_changed")]
  43       protected function get selectFromTag():Object {
  44           var tagValue:String = value;
  45           for each(var choice:Choice in choices) {
  46               if ( choice.isTagMatch(tagValue) )
  47                   return choice;
  48           }
  49
  50           // set up the unknown choice
  51           if ( _unknownChoice == null ) {
  52               _unknownChoice = new Choice();
  53               _unknownChoice.description = "Unknown value";
  54               _choices.addItem(_unknownChoice);
  55           }
  56           _unknownChoice.label = "<i>Unknown:</i> "+Feature.htmlEscape(tagValue);
  57           _unknownChoice.icon = null;
  58           _unknownChoice.value = tagValue;
  59
  60           return _unknownChoice;
  61       }
  62
  63       private function createUnsetChoice():Choice {
  64           var choice:Choice = new Choice();
  65           choice.icon = null;
  66           choice.description = "Field not set";
  67           choice.label = "<font color='#a0a0a0'><i>Unset</i></font>";
  68           choice.value = null;
  69           return choice;
  70       }
  71   ]]></fx:Script>
  72 </edit:SingleTagEditor>
  73