Changes between Version 7 and Version 8 of oid/WorkLog/09-02-04

Timestamp:

Feb 4, 2009, 4:32:53 PM (17 years ago)

Author:

jazz

Comment:

--

oid/WorkLog/09-02-04

@@ -257 +257 @@
   };
 }}}
+ * 從 Element 的 prototype 跟建構子看來，Element 類別包含 id, element, type, event 四個 field，getHiddenPolylineOverlay(points, weigth, id)、getArrowGroundOverlay(arrow_url, sw, ne)、getMarker(icon_url, point, id) 三個暫時的 inner function，drawOnMap()、removeFromMap()兩個 method (其他被註解掉了)
+{{{
+  function Element(raw_element) {
+    var me = this;
+    this.id = raw_element.id
+    this.element = raw_element;
+    this.type = raw_element.type;
+    
+    var getHiddenPolylineOverlay = function(points, weigth, id) {
+      var latlngs = new Array();
+      $.each(points, function(index, point){
+        latlngs.push(new GLatLng(point.lat, point.lng));
+      });
+      var polyline = new GPolygon(latlngs, "#000000", 10, 0.0);
+      GEvent.addListener(polyline, 'click', function(latlng) {
+        G_MAP.openInfoWindow("ELEMENT", id, latlng);
+      });
+      return polyline;
+    };
+    
+    var getArrowGroundOverlay = function(arrow_url, sw, ne) {
+      var bound = new GLatLngBounds(new GLatLng(ne.lat, ne.lng), new GLatLng(sw.lat, sw.lng));
+      var arrow = new GGroundOverlay(CN_BASE + 'arrow/'  + arrow_url + '.png', bound);
+      return arrow;
+    }
+    
+    var getMarker = function(icon_url, point, id) {
+      var image = CN_BASE + 'icon/' + icon_url + '.png';
+      var icon = new GIcon(G_DEFAULT_ICON, image);
+      if (icon_url.length == 2)
+        icon.iconSize = new GSize(45,32);
+      else
+        icon.iconSize = new GSize(25,32);
+      var marker = new GMarker(point, {icon:icon});
+      GEvent.addListener(marker, 'click', function() {
+        G_MAP.openInfoWindow("ELEMENT", id, point);
+      });
+      return marker;
+    }
+    if (this.type == 'point') {
+      this.point = new GLatLng(raw_element.lat, raw_element.lng);
+      this.marker = getMarker(raw_element.pic, this.point, this.id);
+    } else {
+      this.hidden_polyline = getHiddenPolylineOverlay(raw_element.hot_points, C_POLYLINE_WEIGHT, this.id);
+      this.arrow = getArrowGroundOverlay(raw_element.arrow, raw_element.arrow_points[0], raw_element.arrow_points[1]);
+      
+    } 
+    this.events = raw_element.event_ids;
+  };
+  
+  Element.prototype = {
+    drawOnMap: function() {
+      if (this.type == 'line') {
+        G_MAP.addOverlay(this.hidden_polyline);
+        G_MAP.addOverlay(this.arrow);
+      } else {
+        G_MAP.addOverlay(this.marker);
+      }
+    },
+    
+    removeFromMap: function() {
+      if (this.type == 'line') {
+        G_MAP.removeOverlay(this.hidden_polyline);
+        G_MAP.removeOverlay(this.arrow);
+      } else {
+        G_MAP.removeOverlay(this.marker);
+      }
+    }
+    
+    /*
+    highLight: function() {
+      G_MAP.removeOverlay(this.current_overlay);
+      G_MAP.addOverlay(this.highlight_overlay);
+      this.current_overlay = this.highlight_overlay;
+    },
+    
+    deHighLight: function() {
+      G_MAP.removeOverlay(this.current_overlay);
+      G_MAP.addOverlay(this.overlay);
+      this.current_overlay = this.overlay;
+    },
+    
+    adjustZoomLevel: function() {
+    }
+    */
+  };
+}}}