msfd_portal_hcmr/public/js/maptab/map.js

var map;
var mapL;
var activeLayer;
var activeLayerList = {};
var activeLayerIds = [];
var activeGeoJson;
var map_previousProjection;
var map_currentProjection;
var map_controls;
var map_highlightLayer;
var map_basemapProjections = new Array();
var map_isGeodesic = true;

var map_contextMenu=Ext.create("Ext.menu.Menu",{
	floating:true,
	ignoreParentClick: true,
	items:[{
		text:_map_contextMenu_Cancel
	}]

});

Proj4js.defs["EPSG:900913"]= "+title= Google Mercator EPSG:900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs";
Proj4js.defs["EPSG:4326"] = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs";
Proj4js.defs["EPSG:2100"] = "+proj=tmerc +lat_0=0 +lon_0=24 +k=0.9996 +x_0=500000 +y_0=0 +ellps=GRS80 +towgs84=-199.87,74.79,246.62,0,0,0,0 +units=m +no_defs";
Proj4js.defs["EPSG:3857"]="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs";
Proj4js.defs["EPSG:32661"] = "+proj=stere +lat_0=90 +lat_ts=90 +lon_0=0 +k=0.994 +x_0=2000000 +y_0=2000000 +ellps=WGS84 +datum=WGS84 +units=m +no_defs";
Proj4js.defs["EPSG:4258"] = "+proj=longlat +ellps=GRS80 +no_defs";
Proj4js.defs["EPSG:32717"] = "+proj=utm +zone=17 +south +ellps=WGS84 +datum=WGS84 +units=m +no_defs";
Proj4js.defs["EPSG:3035"] = "+proj=laea +lat_0=52 +lon_0=10 +x_0=4321000 +y_0=3210000 +ellps=GRS80 +units=m +no_defs";


function mapCheckLayerSupportedProjection()
{
	var overlayers=mapGetlayersBy("isBaseLayer",false);

	for(var i=overlayers.length-1;i>=0;i--)
	{
		var layer=overlayers[i];

		if (typeof layer._layerObject!=="undefined") {
			if ((!layer._serviceObject._isVector) &&(layer._serviceObject._isService))
			{
				if (layer._layerObject._supportedEPSG!=null)
				{
					var _supportedEPSG=layer._layerObject._supportedEPSG;

					if (_supportedEPSG.indexOf(mapGetCurrentProjection())<0) {
						maptab_west_layer_get_node_from_id(layer._layerObject._layerId).set('cls', 'disabled');
					} else {
						maptab_west_layer_get_node_from_id(layer._layerObject._layerId).set('cls', '');
					}
				}
			}
		}
	}
}


function mapChangeBaseLayer(a,b)
{
	if (typeof map.baseLayer._restrictedExtent!=="undefined")	{
		map.setOptions({restrictedExtent:map.baseLayer._restrictedExtent});
	} else {
		map.setOptions({restrictedExtent:null});
	}

	if (typeof map.baseLayer.isGeodesic!=="undefined") {
		map_isGeodesic = map.baseLayer.isGeodesic;
	}

	if (a!=b)	{
		for(var i=0;i<map_highlightLayer.features.length;i++)	{
			map_highlightLayer.features[i].geometry.transform(new OpenLayers.Projection(b), new OpenLayers.Projection(a));
		}
		map_highlightLayer.refresh();

		for(var i=0;i<map_highlightLayerFeatureInfo.features.length;i++) {
			map_highlightLayerFeatureInfo.features[i].geometry.transform(new OpenLayers.Projection(b), new OpenLayers.Projection(a));
		}

		map_highlightLayerFeatureInfo.refresh();
		map.setCenter(new OpenLayers.LonLat(Number(map.getCenter().lon),Number(map.getCenter().lat)).transform(new OpenLayers.Projection(b), new OpenLayers.Projection(a)),map.getZoom());
		map.setOptions({projection:new OpenLayers.Projection(a)});
		map_currentProjection=map.getProjectionObject().toString();

		var overlayers=mapGetlayersBy("isBaseLayer",false);

		for(var i=overlayers.length-1;i>=0;i--)	{
			var _layer=overlayers[i];

			if (_layer._serviceObject._serviceType=="WMS")
			{
        mapL.addLayer(_layer._layer._serviceObject._serviceUrl);
				_layer.projection = new OpenLayers.Projection(map_currentProjection);
			}
		}

		map.updateSize();
	}

	map.zoomOut();
	map.zoomIn();
}

function mapRedrawNonVector()
{
	var overlayers=mapGetlayersBy("isBaseLayer",false);

	for(var i=overlayers.length-1;i>=0;i--)
	{
		var layer=overlayers[i];

		if(!layer._layerObject._isVector)	{
			layer.redraw();
		}
	}
}

function mapSetVisibilityBaseOnScales()
{
	var overlayers=mapGetlayersBy("isBaseLayer",false);

	for(var i=overlayers.length-1;i>=0;i--)
	{
		var layer=overlayers[i];

		if ((typeof layer._layerObject._scales!=="undefined") && (layer._layerObject._visibility===true) && (layer._layerObject._scales!==null))
		{
			layer.setVisibility(false);

			for(var l=0;l<layer._layerObject._scales.length;l++)
			{
				var item=layer._layerObject._scales[l];

				if (item!=0)
				{
					var _min=Number(item[0]);
					var _max=Number(item[1]);
					var _currentMapScale=Number(mapGetCurrentScale());

					if (_max<0)	{
						_max=_currentMapScale+1000;
					}

					if((_currentMapScale>=_min) && (_currentMapScale<_max))
					{
						layer.setVisibility(true);

						break;
					}
				}
			}
		}
	}
}


function mapSetCenter(lon,lat,zoom)
{
	map.setCenter(new OpenLayers.LonLat(Number(lon),Number(lat)),zoom);
}

function mapGetZoom()
{
	return map.getZoom();
}

function mapGetCenter()
{
	var _mc=map.getCenter();

	if (mapGetCurrentProjection()!=mapGetCurrentDisplayProjection()) {
		_mc.transform(new OpenLayers.Projection(mapGetCurrentProjection()), new OpenLayers.Projection(mapGetCurrentDisplayProjection()));
	}
	var _mz=map.getZoom();
	var _c={
		lon:_mc.lon,
		lat:_mc.lat,
		zoom:_mz
	}

	return _c
}

function mapSetDisplayProjection(_epsg)
{
	map.setOptions({displayProjection:new OpenLayers.Projection(_epsg)});
}

function mapBeforeAddLayer(_serviceObject,_layerObject)
{
	if (installing)	{
		config_update_addLayer(_layerObject,_serviceObject);
	}
}


function mapAddLayer(_serviceObject,_layerObject)
{
	var _node=maptab_west_layer_tree_panel_tree_json_store.getNodeById('maptab_west_layer_tree_panel_tabs_layers_layers_node');

	if(_layerObject._groupId!="")
	{
		_node=maptab_west_layer_tree_panel_tree_json_store.getRootNode().findChild("_groupId",_layerObject._groupId,true);
	}

	if (_node==null) {
		_node=maptab_west_layer_tree_panel_tree_json_store.getNodeById('maptab_west_layer_tree_panel_tabs_layers_layers_node');
	}

	if (!mapFindLayerById(_layerObject._layerId))	{
		var _layerNode=maptab_west_layer_add_layer(_layerObject._layer,_node);

		mapOnLayerLoadStart(_layerObject._layer,fn_loadStart);
		mapOnLayerLoadEnd(_layerObject._layer,fn_loadEnd);

		map.addLayer(_layerObject._layer);

    if (_layerObject._layerName === 'MSFD_NEW:pt_marine_region') {
      let activeLayer = L.tileLayer.betterWms(BASE_URL + '/modules/geoserver/wms.php', { layers: _layerObject._layerName, transparent: true, format: "image/png"}).addTo(mapL);
      activeLayer.internalId = _layerObject._layerId;
      activeLayerList[_layerObject._layerName] = activeLayer;
    }
		if (installing)	{
			config_update_addLayer(_layerObject,_serviceObject);
		}

		config_init_layerScales(_layerObject);
		maptab_west_layer_reorder_layer();
	}
}


function mapRemoveLayerNode(_layer)
{
	if (mapRemoveLayer(_layer))	{
		maptab_west_layer_remove_node(_layer._layerObject._layerId);
	}
}

function mapRemoveLayer(_layer)
{
	if (_layer)
	{
		if ((typeof _layer._layerObject!=="undefined") && (_layer._layerObject!=null))
		{
			if (mapFindLayerById(_layer._layerObject._layerId))
			{
				map.removeLayer(_layer);

				_layer._layerObject._isLoaded=false;
				_layer._layerObject._loadedStatus=0;

				return true;
			}
		}
	}

	return false;
}


function mapFindLayerById(_layerId)
{
	return map.getLayer(_layerId);
}

function mapChangeLayerVisibility(_layerId,_visibility)
{
	mapFindLayerById(_layerId).setVisibility(_visibility);

	if (mapFindLayerById(_layerId)._layerObject) {
		mapFindLayerById(_layerId)._layerObject._visibility=_visibility;
	}
}


function mapGetCountOfOverlayers()
{
	return mapGetlayersBy("isBaseLayer",false).length;
}

function mapGetlayersBy(_find,_value)
{
	var _array=[];
	var _layers=map.getLayersBy(_find,_value);

	for(var i=0;i<_layers.length;i++)
	{
		if ((typeof _layers[i]._layerObject!=="undefined") && (typeof _layers[i]._serviceObject!=="undefined"))	{
			_array.push(_layers[i]);
		}
	}

	return _array;
}


function mapReorderLayer(_layerId,_index)
{
	map.setLayerIndex(mapFindLayerById(_layerId),_index);
}


function mapLayerIsLoaded(_layerId)
{
	if(mapFindLayerById(_layerId)) {
		return mapFindLayerById(_layerId)._layerObject._loadedStatus;
	}

	return false;
}

function mapListOfBasemapProjections()
{
	var basemaps=map.getLayersBy("isBaseLayer",true);
	var _supportedEPSG=new Array();

	for(var i=0;i<basemaps.length;i++)
	{
		if(_supportedEPSG.indexOf(basemaps[i].projection.toString())==-1) {
			_supportedEPSG.push(basemaps[i].projection.toString());
		}
	}

	return _supportedEPSG;
}

function mapGetCurrentProjection()
{
	var p=map.getProjectionObject().toString();

	return p;
}

function mapGetCurrentDisplayProjection()
{
	var p=map.displayProjection.toString();

	return p;
}

function mapGetCurrentScale()
{
	var p=map.getScale().toString();

	return p;
}

function mapGetBasemapResolutions()
{
	var resolutions = map.baseLayer.resolutions;
	var units = map.baseLayer.units;
	var mapScales=new Array();

    for (var i=resolutions.length-1; i >= 0; i--) {
      var res = resolutions[i];

      mapScales.push([(OpenLayers.Util.getScaleFromResolution(res, units)-1),"1:"+Math.round(OpenLayers.Util.getScaleFromResolution(res, units))]);
    }

	return mapScales;
}

function mapZoomToScale(scale)
{
	map.zoomToScale(scale);
}

function mapGetProjectionCode(projection)
{
	var p=new OpenLayers.Projection(projection);

	return p.getCode().toString();
}

function mapBBOXToString(_layerObject)
{
	var b=_layerObject._bboxMinX+","+_layerObject._bboxMinY+","+_layerObject._bboxMaxX+","+_layerObject._bboxMaxY;

	return b.toString();
}


function mapOnChangeBaseLayer(fn_param)
{
	map.events.on({
		"changebaselayer":function()
		{

			fn_param(map_previousProjection,map_currentProjection);

			map_previousProjection=map.getProjectionObject().toString();
		}
	});
}

function mapOnZoomEnd(fn_param)
{
	map.events.on({
		"zoomend":function()
		{
			fn_param();
		}
	});
}

function mapOnMoveEnd(fn_param)
{
	map.events.on({
		"moveend":function()
		{
			fn_param();
		}
	});
}

function mapOnBeforeAddLayer(fn_param)
{
	map.events.on({
		"preaddlayer":fn_param
	});
}

function mapOnAddLayer(fn_param)
{
	map.events.on({
		"addlayer":fn_param
	});
}

function mapOnRemoveLayer(fn_param)
{
	map.events.on({
		"removelayer":function(_layer)
		{
			fn_param(_layer);
		}
	});
}

function mapOnMouseMove(fn_param)
{
	map.events.on({
		"mousemove":fn_param
	});
}

function mapOnChangeLayer(fn_param)
{
	map.events.on({
		"changelayer":fn_param
	});
}

function mapOnFeatureOver(fn_param)
{
	map.events.on({
		"featureover":fn_param
	});
}

function mapOnFeatureOut(fn_param)
{
	map.events.on({
		"featureout":fn_param
	});
}

function mapOnClick(fn_param)
{
	map.events.on({
		"click":fn_param
	});

}

function mapOnLayerLoadStart(layer,fn_param)
{
	layer.events.on({
		loadstart: function()
		{
			fn_param(layer.id);
		}
	});
}

function mapOnLayerLoadEnd(layer,fn_param)
{
	layer.events.on({
		loadend: function()
		{
			fn_param(layer.id);
		}
	});
}

function mapUnregisterEvents(event,fn_param)
{
	map.events.unregister(event,map,fn_param);
}

function mapExtentToLayer(_layerId)
{

	map.zoomToExtent(mapLayerBounds(mapFindLayerById(_layerId)._layerObject));
}


function mapLayerBounds(_layerObject)
{
	var b=new OpenLayers.Bounds.fromString(mapBBOXToString(_layerObject));

	if(mapGetCurrentProjection()!="EPSG:4326")
	{
		b=b.transform(new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection(mapGetCurrentProjection()));
	}

	if (mapFindLayerById(_layerObject._layerId)!==null)
	{
		if ((mapFindLayerById(_layerObject._layerId)._serviceObject._isVector) && (!mapFindLayerById(_layerObject._layerId)._serviceObject._isService))
		{
			return mapFindLayerById(_layerObject._layerId).getDataExtent();
		}
	}

	return b;
}

function mapCoordinatesFromPixels(xy)
{
	return map.getLonLatFromViewPortPx(xy);
}

function mapSetOpacity(_layerId,_value)
{
	mapFindLayerById(_layerId).setOpacity(_value);

	mapFindLayerById(_layerId)._layerObject._opacity=_value;
}

function mapGetOpacity(_layerId)
{
	return mapFindLayerById(_layerId).opacity;
}

function mapGetSize()
{
	return map.size;
}

function mapGetExtent()
{
	return map.getExtent();
}

function mapAddControl(_control)
{
	map.addControl(_control);
}

function mapZoomLevels()
{
	return map.getNumZoomLevels();
}

function mapGetFeatureByFid(_layerId,_featureId)
{
	try{
		return mapFindLayerById(_layerId).getFeatureByFid(_featureId);
	}catch(err){
		return;
	}
}

function mapGetFeatureByAttribute(_layerId,_attributeName,_attributeValue)
{
	try{
		return mapFindLayerById(_layerId).getFeaturesByAttribute(_attributeName,_attributeValue);
	}catch(err){
		return;
	}
}

function mapSetBaseMapLayer(_layerId)
{
	map.setBaseLayer(mapFindLayerById(_layerId));

	map.setLayerIndex(mapFindLayerById(_layerId),0);
}

function mapLayerIsBaseLayer(_layerId)
{
	return mapFindLayerById(_layerId).isBaseLayer;
}

function mapGetFeatureById(_layerId,_featureId)
{
	return mapFindLayerById(_layerId).getFeatureById(_featureId);
}

function mapRemoveControl(_control)
{
	map.removeControl(_control);
}

function mapAddFeatures(_layerId,_features)
{
	if (_features!="")
	{
		if(_features.length>0)
		{
			var p=_features.length;

			for(var i=0;i<p;i++)
			{
				mapFindLayerById(_layerId).addFeatures(_features[i]);
			}
		}
		else
		{
			mapFindLayerById(_layerId).addFeatures(_features);
		}

	}
}

function mapEraseFeatures(_layerId,_features)
{
	if (_features!="")
	{
		if(_features.length>0)
		{
			var p=_features.length;

			for(var i=0;i<p;i++)
			{
				var _f=mapGetFeatureByFid(_layerId,_features[i].fid);

				_f.state=OpenLayers.State.DELETE;

				mapFindLayerById(_layerId).eraseFeatures(_f);
			}
		}
		else
		{
			_features.state=OpenLayers.State.DELETE;

			mapFindLayerById(_layerId).eraseFeatures(_features);
		}

	}
}

function mapRemoveFeatures(_layerId,_features)
{
	if (_features!="")
	{
		if(_features.length>0)
		{
			var p=_features.length;

			for(var i=0;i<p;i++)
			{
				var _f=mapGetFeatureByFid(_layerId,_features[i].fid);

				mapFindLayerById(_layerId).removeFeatures(_f);
			}
		}
		else
		{

			mapFindLayerById(_layerId).removeFeatures(_features);
		}

	}
}

function mapSelectedFeatures(_layerId)
{
	return mapFindLayerById(_layerId).selectedFeatures;
}

function formatXML(_filter)
{
	var _node = new OpenLayers.Format.Filter({version: '1.1.0'}).write(_filter);

	var xml = new OpenLayers.Format.XML().write(_node);

	return xml;
}

function createSpatialFilter(_geometryCriteria, _featureGeometry)
{
	switch(_geometryCriteria)
	{
		case "BBOX":
			_geometryCriteria = OpenLayers.Filter.Spatial.BBOX;
		break;

		case "INTERSECTS":
			_geometryCriteria = OpenLayers.Filter.Spatial.INTERSECTS;
		break;

		case "DWITHIN":
			_geometryCriteria = OpenLayers.Filter.Spatial.DWITHIN;
		break;

		case "WITHIN":
			_geometryCriteria = OpenLayers.Filter.Spatial.WITHIN;
		break;

		case "CONTAINS":
			_geometryCriteria = OpenLayers.Filter.Spatial.CONTAINS;
		break;

	}

	var _filter = new OpenLayers.Filter.Spatial({
		type: _geometryCriteria,
		value: _featureGeometry
	});

	return _filter;

}

function createAttributeFilter(_propertyName, _comparison, _propertyValue)
{
	switch(_comparison)
	{
		case "=":
			_comparison = OpenLayers.Filter.Comparison.EQUAL_TO;
		break;

		case "!=":
			_comparison = OpenLayers.Filter.Comparison.NOT_EQUAL_TO;
		break;

		case "<":
			_comparison = OpenLayers.Filter.Comparison.LESS_THAN;
		break;

		case ">":
			_comparison = OpenLayers.Filter.Comparison.GREATER_THAN;
		break;

		case "<=":
			_comparison = OpenLayers.Filter.Comparison.LESS_THAN_OR_EQUAL_TO;
		break;

		case ">=":
			_comparison = OpenLayers.Filter.Comparison.LESS_THAN_OR_EQUAL_TO;
		break;

		case "LIKE":
			_comparison = OpenLayers.Filter.Comparison.LIKE;
		break;

		case "IS NULL":
			_comparison = OpenLayers.Filter.Comparison.IS_NULL;
			_propertyValue = true;
		break;

		case "IS NOT NULL":
			_comparison = OpenLayers.Filter.Comparison.IS_NULL;
			_propertyValue = false;
		break;
	}

	var _filter = new OpenLayers.Filter.Comparison(
		{
			type: _comparison,
			property: _propertyName,
			value: _propertyValue
		});

	return _filter;
}

function createLogicalFilter(_operator, _filter)
{
	switch(_operator)
	{
		case "OR":
			_operator = OpenLayers.Filter.Logical.OR;
		break;

		default:
			_operator = OpenLayers.Filter.Logical.AND;
		break;
	}

	var _filter = new OpenLayers.Filter.Logical({
		type: _operator,
		filters: _filter
	});

	return _filter;
}