[Mapbender-commits] r5061 - trunk/mapbender/lib

[svn_mapbender at osgeo.org]

Author: christoph
Date: 2009-12-02 11:08:31 -0500 (Wed, 02 Dec 2009)
New Revision: 5061

Added:
   trunk/mapbender/lib/resultGeometryListModel.js
Log:


Added: trunk/mapbender/lib/resultGeometryListModel.js
===================================================================
--- trunk/mapbender/lib/resultGeometryListModel.js	                        (rev 0)
+++ trunk/mapbender/lib/resultGeometryListModel.js	2009-12-02 16:08:31 UTC (rev 5061)
@@ -0,0 +1,180 @@
+/**
+ * Package: ResultGeometryListModel
+ * 
+ * Description:
+ * A feature collection of a result geometry list.
+ * 
+ * Files:
+ *  - lib/resultGeometryListModel.js
+ *
+ * License:
+ * Copyright (c) 2009, Open Source Geospatial Foundation
+ * This program is dual licensed under the GNU General Public License 
+ * and Simplified BSD license.  
+ * http://svn.osgeo.org/mapbender/trunk/mapbender/license/license.txt
+ */
+
+/**
+ * Constructor: ResultGeometryListModel
+ */
+var ResultGeometryListModel = function () {
+	var geomArray = new GeometryArray();
+
+	/**
+	 * Property: events
+	 * 
+	 * Description:
+	 * added   -  the event is fired after features are added
+	 * deleted -  the event is fired after features have been deleted
+	 * updated -  the event is fired after features have been updated
+	 * cleared -  the event is fired after all features have been deleted
+	 */
+	this.events = {
+		added: new Mapbender.Event(),
+		deleted: new Mapbender.Event(),
+		updated:  new Mapbender.Event(),
+		cleared: new Mapbender.Event()
+	};
+
+	/**
+	 * Method: addFeatureCollection
+	 * 
+	 * Description:
+	 * Add a feature collection to the geometry array
+	 * 
+	 * Parameters:
+	 * geoJSON      - a feature collection as GeoJSON string
+	 */
+	this.addFeatureCollection = function (geoJSON) {
+		var oldLength = geomArray.count();
+		if (geomArray.importGeoJSON(geoJSON)) {
+			var featureCollection = [];
+			for (var i = oldLength; i < geomArray.count(); i++) {
+				featureCollection.push({
+					index: i,
+					feature: geomArray.get(i)
+				});
+			}
+			
+			this.events.added.trigger({
+				featureCollection: featureCollection
+			});
+			return true;
+		}
+		return false;
+	};
+
+	/**
+	 * Method: addFeature
+	 * 
+	 * Description:
+	 * Add a feature to the geometry array
+	 * 
+	 * Parameters:
+	 * geoJSON      - a feature as GeoJSON string
+	 */
+	this.addFeature = function (geoJSON) {
+		return this.addFeatureCollection(geoJSON);
+	};
+	
+	/**
+	 * Method: deleteFeatureCollection
+	 * 
+	 * Description:
+	 * Delete the feature collection (= clear)
+	 */
+	this.deleteFeatureCollection = function () {
+		geomArray = new GeometryArray();
+		this.events.cleared.trigger({});
+		return true;
+	};
+	
+	/**
+	 * Method: deleteFeature
+	 * 
+	 * Description:
+	 * Delete a feature from the geometry array
+	 * 
+	 * Parameters:
+	 * index      - an index of the geometry array
+	 */
+	this.deleteFeature = function (index) {
+		if (geomArray.count() <= index) {
+			return false;
+		}
+		var feature = cloneObject(this.get(index));
+		this.del(index);
+		this.events.deleted.trigger({
+			index: index,
+			feature: feature
+		});
+		return true;
+	};
+	
+	/**
+	 * Method: updateFeature
+	 * 
+	 * Description:
+	 * Replace a feature in the geometry array
+	 * 
+	 * Parameters:
+	 * index      - index of the feature that is replaced
+	 * geoJSON    - a feature as GeoJSON string
+	 */
+	this.updateFeature = function (index, geoJson) {
+		if (geomArray.count() <= index) {
+			return false;
+		}
+		var newGeomArray = new GeometryArray();
+		if (!newGeomArray.importGeoJSON(geoJSON)) {
+			return false;
+		}
+		var oldFeature = geomArray.get(index);
+		oldFeature = newGeomArray.get(0);
+		this.events.updated.trigger({
+			index: index,
+			feature: oldFeature
+		});
+		return true;
+	};
+	
+	/**
+	 * Method: setFeatureProperty
+	 * 
+	 * Description:
+	 * Set a property of a feature in the geometry array
+	 * 
+	 * Parameters:
+	 * index      - index of the feature
+	 * pName      - property name
+	 * pValue     - new property value
+	 */
+	this.setFeatureProperty = function (index, pName, pValue) {
+		if (geomArray.count() <= index) {
+			return false;
+		}
+		geomArray.get(index).e.setElement(pName, pValue);
+		this.events.updated.trigger({
+			index: index,
+			feature: geomArray.get(index)
+		});
+		return true;			
+	};
+	
+	/**
+	 * Method: getFeatureProperty
+	 * 
+	 * Description:
+	 * Get a property of a feature in the geometry array
+	 * 
+	 * Parameters:
+	 * index      - index of the feature
+	 * pName      - property name
+	 */	
+	 this.getFeatureProperty = function (index, pName) {
+		if (geomArray.count() <= index) {
+			return null;
+		}
+		return geomArray.get(index).e.getElementValueByName(pName);
+	};
+};