net/systemeD/halcyon/NodeUI.as

   1 package net.systemeD.halcyon {
   2
   3         import flash.display.*;
   4         import flash.events.*;
   5         import flash.text.AntiAliasType;
   6         import flash.text.GridFitType;
   7         import flash.text.TextField;
   8         import flash.text.TextFormat;
   9         import flash.geom.Matrix;
  10         import flash.geom.Point;
  11     import net.systemeD.halcyon.connection.Node;
  12     import net.systemeD.halcyon.connection.Connection;
  13         import net.systemeD.halcyon.styleparser.*;
  14         import net.systemeD.halcyon.Globals;
  15
  16         public class NodeUI extends EntityUI {
  17
  18         private var node:Node;
  19                 public var loaded:Boolean=false;
  20                 private var iconname:String='';                         // name of icon
  21                 private var heading:Number=0;                           // heading within way
  22                 private var rotation:Number=0;                          // rotation applied to this POI
  23
  24                 public function NodeUI(node:Node, map:Map, heading:Number=0) {
  25                         super();
  26                         this.map = map;
  27                         this.node = node;
  28                         this.heading = heading;
  29                         node.addEventListener(Connection.NODE_MOVED, nodeMoved);
  30                         node.addEventListener(Connection.NODE_DELETED, nodeDeleted);
  31                         node.addEventListener(Connection.SUSPEND_REDRAW, suspendRedraw);
  32                         node.addEventListener(Connection.RESUME_REDRAW, resumeRedraw);
  33                 }
  34
  35                 public function nodeMoved(event:Event):void {
  36                     updatePosition();
  37                 }
  38
  39                 public function nodeDeleted(event:Event):void {
  40                         removeSprites();
  41                 }
  42
  43                 override public function doRedraw(sl:StyleList):Boolean {
  44                         var tags:Object = node.getTagsCopy();
  45                         tags=applyStateClasses(tags);
  46                         if (!node.hasParentWays) { tags[':poi']='yes'; }
  47                         if (!sl) { sl=map.ruleset.getStyles(this.node,tags); }
  48
  49                         var inWay:Boolean=node.hasParentWays;
  50                         var hasStyles:Boolean=sl.hasStyles();
  51
  52                         removeSprites(); iconname='';
  53                         return renderFromStyle(sl,tags);
  54                 }
  55
  56                 private function renderFromStyle(sl:StyleList,tags:Object):Boolean {
  57                         var r:Boolean=false;    // ** rendered
  58                         var w:Number;
  59                         var icon:Sprite;
  60                         layer=10;
  61                         for (var sublayer:int=10; sublayer>=0; sublayer--) {
  62
  63                                 if (sl.pointStyles[sublayer]) {
  64                                         var s:PointStyle=sl.pointStyles[sublayer];
  65                                         r=true;
  66                                         if (s.rotation) { rotation=s.rotation; }
  67
  68                                         if (s.icon_image!=iconname) {
  69                                                 if (s.icon_image=='square') {
  70                                                         // draw square
  71                                                         icon=new Sprite();
  72                                                         addToLayer(icon,STROKESPRITE,sublayer);
  73                                                         w=styleIcon(icon,sl,sublayer);
  74                                                         icon.graphics.drawRect(0,0,w,w);
  75                                                         addHitSprite(w);
  76                                                         updatePosition();
  77                                                         iconname='_square';
  78
  79                                                 } else if (s.icon_image=='circle') {
  80                                                         // draw circle
  81                                                         icon=new Sprite();
  82                                                         addToLayer(icon,STROKESPRITE,sublayer);
  83                                                         w=styleIcon(icon,sl,sublayer);
  84                                                         icon.graphics.drawCircle(w,w,w);
  85                                                         addHitSprite(w);
  86                                                         updatePosition();
  87                                                         iconname='_circle';
  88
  89                                                 } else if (map.ruleset.images[s.icon_image]) {
  90                                                         // 'load' icon (actually just from library)
  91                                                         var loader:Loader = new Loader();
  92                                                         loader.contentLoaderInfo.addEventListener(Event.COMPLETE, function(e:Event):void { loadedIcon(e,sublayer); } );
  93                                                         loader.loadBytes(map.ruleset.images[s.icon_image]);
  94                                                         iconname=s.icon_image;
  95                                                 }
  96                                         } else {
  97                                                 // already loaded, so just reposition
  98                                                 updatePosition();
  99                                         }
 100                                 }
 101
 102                                 // name sprite
 103                                 var a:String, t:TextStyle;
 104                                 if (sl.textStyles[sublayer]) {
 105                                         t=sl.textStyles[sublayer];
 106                                         a=tags[t.text];
 107                                 }
 108
 109                                 if (a) {
 110                                         var name:Sprite=new Sprite();
 111                                         addToLayer(name,NAMESPRITE);
 112                                         t.writeNameLabel(name,a,map.lon2coord(node.lon),map.latp2coord(node.latp));
 113                                 }
 114                         }
 115                         return r;
 116                 }
 117
 118
 119                 private function styleIcon(icon:Sprite, sl:StyleList, sublayer:uint):Number {
 120                         loaded=true;
 121
 122                         // get colours
 123                         if (sl.shapeStyles[sublayer]) {
 124                                 var s:ShapeStyle=sl.shapeStyles[sublayer];
 125                                 if (s.color) { icon.graphics.beginFill(s.color); }
 126                                 if (s.casing_width || !isNaN(s.casing_color)) {
 127                                         icon.graphics.lineStyle(s.casing_width ? s.casing_width : 1,
 128                                                                                         s.casing_color ? s.casing_color : 0,
 129                                                                                         s.casing_opacity ? s.casing_opacity : 1);
 130                                 }
 131                         }
 132
 133                         // return width
 134                         return sl.pointStyles[sublayer].icon_width ? sl.pointStyles[sublayer].icon_width : 4;
 135                 }
 136
 137                 private function addHitSprite(w:uint):void {
 138             var hitzone:Sprite = new Sprite();
 139             hitzone.graphics.lineStyle(4, 0x000000, 1, false, "normal", CapsStyle.ROUND, JointStyle.ROUND);
 140                         hitzone.graphics.beginFill(0);
 141                         hitzone.graphics.drawRect(0,0,w,w);
 142             addToLayer(hitzone, CLICKSPRITE);
 143             hitzone.visible = false;
 144                         createListenSprite(hitzone);
 145                 }
 146
 147                 private function loadedIcon(event:Event,sublayer:uint):void {
 148                         var icon:Sprite=new Sprite();
 149                         addToLayer(icon,STROKESPRITE,sublayer);
 150                         icon.addChild(Bitmap(event.target.content));
 151                         addHitSprite(icon.width);
 152                         loaded=true;
 153                         updatePosition();
 154                 }
 155
 156         override protected function mouseEvent(event:MouseEvent):void {
 157                         map.entityMouseEvent(event, node);
 158         }
 159
 160                 private function updatePosition():void {
 161                         if (!loaded) { return; }
 162
 163                         for (var i:uint=0; i<sprites.length; i++) {
 164                                 var d:DisplayObject=sprites[i];
 165                                 d.x=0; d.y=0; d.rotation=0;
 166
 167                                 var m:Matrix=new Matrix();
 168                                 m.translate(-d.width/2,-d.height/2);
 169                                 m.rotate(rotation);
 170                                 m.translate(map.lon2coord(node.lon),map.latp2coord(node.latp));
 171                                 d.transform.matrix=m;
 172                         }
 173                 }
 174         }
 175 }