qwc2/plugins/map/MeasurementSupport.js

QGIS Web Client

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 * Copyright 2016 GeoSolutions Sas
 * Copyright 2016-2024 Sourcepole AG
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree.
 */import React from"react";import{connect}from"react-redux";import ol from"openlayers";import PropTypes from"prop-types";import{changeMeasurementState}from"../../actions/measurement";import FeatureStyles from"../../utils/FeatureStyles";import MeasureUtils from"../../utils/MeasureUtils";/**
 * Measurement support for the map component.
 */var MeasurementSupport=/*#__PURE__*/function(_React$Component){function MeasurementSupport(props){var _this;_classCallCheck(this,MeasurementSupport);_this=_callSuper(this,MeasurementSupport,[props]);_defineProperty(_this,"addDrawInteraction",function(newProps){_this.reset();// Create a layer to draw on
_this.measureLayer=new ol.layer.Vector({source:new ol.source.Vector,zIndex:1000000});_this.props.map.addLayer(_this.measureLayer);var geometryType=newProps.measurement.geomType;if(geometryType==="Bearing"){geometryType="LineString"}// create an interaction to draw with
_this.drawInteraction=new ol.interaction.Draw({stopClick:true,source:_this.measureLayer.getSource(),condition:function condition(event){return event.originalEvent.buttons===1},type:geometryType,style:function style(){return _this.modifyInteraction?[]:FeatureStyles.sketchInteraction()}});_this.drawInteraction.on("drawstart",function(ev){_this.leaveTemporaryPickMode();_this.measureLayer.getSource().clear();_this.sketchFeature=ev.feature;_this.sketchFeature.setStyle(_this.featureStyleFunction);_this.sketchFeature.on("change",function(evt){return _this.updateMeasurementResults(evt.target)})});_this.drawInteraction.on("drawend",function(){_this.updateMeasurementResults(_this.sketchFeature,false);_this.enterTemporaryPickMode()});_this.props.map.addInteraction(_this.drawInteraction)});_defineProperty(_this,"reset",function(){if(_this.drawInteraction!==null){_this.props.map.removeInteraction(_this.drawInteraction);_this.drawInteraction=null;_this.leaveTemporaryPickMode();_this.props.map.removeLayer(_this.measureLayer);_this.measureLayer=null;_this.sketchFeature=null}});_defineProperty(_this,"enterTemporaryPickMode",function(){_this.modifyInteraction=new ol.interaction.Modify({features:new ol.Collection([_this.sketchFeature]),condition:function condition(event){return event.originalEvent.buttons===1},insertVertexCondition:function insertVertexCondition(){return _this.props.measurement.geomType==="Bearing"?false:true},deleteCondition:function deleteCondition(event){return ol.events.condition.shiftKeyOnly(event)&&ol.events.condition.singleClick(event)},style:function style(feature){// Hack to get cursor position over geometry...
if(_this.props.measurement.pickPositionCallback){clearTimeout(_this.pickPositionCallbackTimeout);_this.props.measurement.pickPositionCallback(feature.getGeometry().getCoordinates())}return FeatureStyles.sketchInteraction()}});_this.props.map.on("pointermove",_this.clearPickPosition);_this.modifyInteraction.on("modifyend",function(){_this.updateMeasurementResults(_this.sketchFeature,false)});_this.props.map.addInteraction(_this.modifyInteraction)});_defineProperty(_this,"leaveTemporaryPickMode",function(){if(_this.modifyInteraction){_this.props.map.un("pointermove",_this.clearPickPosition);_this.props.map.removeInteraction(_this.modifyInteraction);_this.modifyInteraction=null}});_defineProperty(_this,"clearPickPosition",function(){if(_this.props.measurement.pickPositionCallback){clearTimeout(_this.pickPositionCallbackTimeout);// Works because style function clears timeout if marker is rendered, i.e. if mouse is over measure geometry
_this.pickPositionCallbackTimeout=setTimeout(function(){if(_this.props.measurement.pickPositionCallback){_this.props.measurement.pickPositionCallback(null)}},50)}});_defineProperty(_this,"updateMeasurementResults",function(feature){var drawing=arguments.length>1&&arguments[1]!==undefined?arguments[1]:true;var geomType=_this.props.measurement.geomType;var settings={lenUnit:_this.props.measurement.lenUnit,areaUnit:_this.props.measurement.areaUnit,displayCrs:_this.props.displayCrs};MeasureUtils.updateFeatureMeasurements(feature,geomType,_this.props.projection,settings);// Only one segment for bearing measurement
if(geomType==="Bearing"&&feature.getGeometry().getCoordinates().length>2){_this.drawInteraction.finishDrawing()}_this.measureLayer.getSource().changed();_this.props.changeMeasurementState(_objectSpread({geomType:_this.props.measurement.geomType,drawing:drawing,coordinates:feature.getGeometry().getCoordinates()},structuredClone(feature.get("measurements"))))});_defineProperty(_this,"featureStyleFunction",function(feature){var geometryFunction=function geometryFunction(f){if(f.getGeometry().getType()==="Point"){return new ol.geom.MultiPoint([f.getGeometry().getCoordinates()])}else if(f.getGeometry().getType()==="LineString"){return new ol.geom.MultiPoint(f.getGeometry().getCoordinates())}return new ol.geom.MultiPoint(f.getGeometry().getCoordinates()[0])};return[].concat(_toConsumableArray(FeatureStyles.measureInteraction(feature)),[FeatureStyles.measureInteractionVertex({geometryFunction:geometryFunction})])});_this.pickPositionCallbackTimeout=null;_this.measureLayer=null;return _this}_inherits(MeasurementSupport,_React$Component);return _createClass(MeasurementSupport,[{key:"componentDidUpdate",value:function componentDidUpdate(prevProps){if(this.props.measurement.geomType&&this.props.measurement.geomType!==prevProps.measurement.geomType){this.addDrawInteraction(this.props)}else if(!this.props.measurement.geomType){this.reset()}else if(this.sketchFeature&&(this.props.measurement.lenUnit!==prevProps.measurement.lenUnit||this.props.measurement.areaUnit!==prevProps.measurement.areaUnit||this.props.displayCrs!==prevProps.displayCrs)){this.updateMeasurementResults(this.sketchFeature,this.props.measurement.drawing)}}},{key:"render",value:function render(){return null}}])}(React.Component);_defineProperty(MeasurementSupport,"propTypes",{changeMeasurementState:PropTypes.func,displayCrs:PropTypes.string,map:PropTypes.object,measurement:PropTypes.object,projection:PropTypes.string});export default connect(function(state){return{displayCrs:state.map.displayCrs,measurement:state.measurement}},{changeMeasurementState:changeMeasurementState})(MeasurementSupport);