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DrawSupport.jsx
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DrawSupport.jsx
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/*
* Copyright 2018, GeoSolutions Sas.
* 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 concat from 'lodash/concat';
import head from 'lodash/head';
import find from 'lodash/find';
import slice from 'lodash/slice';
import omit from 'lodash/omit';
import isArray from 'lodash/isArray';
import last from 'lodash/last';
import filter from 'lodash/filter';
import isNil from 'lodash/isNil';
import castArray from 'lodash/castArray';
import PropTypes from 'prop-types';
import assign from 'object-assign';
import uuid from 'uuid';
import axios from 'axios';
import {isSimpleGeomType, getSimpleGeomType} from '../../../utils/MapUtils';
import {reprojectGeoJson, calculateDistance, reproject} from '../../../utils/CoordinatesUtils';
import {createStylesAsync} from '../../../utils/VectorStyleUtils';
import {transformPolygonToCircle} from '../../../utils/openlayers/DrawSupportUtils';
import {isCompletePolygon} from '../../../utils/AnnotationsUtils';
import { parseStyles, getStyle, defaultStyles, getMarkerStyle, getMarkerStyleLegacy } from './VectorStyle';
import {GeoJSON} from 'ol/format';
import Feature from 'ol/Feature';
import VectorSource from 'ol/source/Vector';
import VectorLayer from 'ol/layer/Vector';
import Draw from 'ol/interaction/Draw';
import { Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon, Circle} from 'ol/geom';
import GeometryCollection from 'ol/geom/GeometryCollection';
import {Style, Stroke, Fill, Text} from 'ol/style';
import CircleStyle from 'ol/style/Circle';
import Collection from 'ol/Collection';
import {always, primaryAction, altKeyOnly} from 'ol/events/condition';
import DoubleClickZoom from 'ol/interaction/DoubleClickZoom';
import Translate from 'ol/interaction/Translate';
import Modify from 'ol/interaction/Modify';
import Select from 'ol/interaction/Select';
import {unByKey} from 'ol/Observable';
import {getCenter} from 'ol/extent';
import {fromCircle, circular} from 'ol/geom/Polygon';
const geojsonFormat = new GeoJSON();
/**
* Component that allows to draw and edit geometries as (Point, LineString, Polygon, Rectangle, Circle, MultiGeometries)
Feature* @class DrawSupport
* @memberof components
* @prop {object} map the map usedto drawing on
* @prop {string} drawOwner the owner of the drawn features
* @prop {string} drawStatus the status that allows to do different things. see UNSAFE_componentWillReceiveProps method
* @prop {string} drawMethod the method used to draw different geometries. can be Circle,BBOX, or a geomType from Point to MultiPolygons
* @prop {object} options it contains the params used to enable the interactions or simply stop the DrawSupport after a ft is drawn
* @prop {boolean} options.geodesic enable to draw a geodesic geometry (supported only for Circle)
* @prop {object[]} features an array of geojson features used as a starting point for drawing new shapes or edit them
* @prop {function} onChangeDrawingStatus method use to change the status of the DrawSupport
* @prop {function} onGeometryChanged when a features is edited or drawn this methos is fired
* @prop {function} onDrawStopped action fired if the DrawSupport stops
* @prop {function} onDrawingFeatures triggered when user clicks on a map in order to draw something
* @prop {function} onSelectFeatures triggered when select interaction is enabled and user click on map in order to draw something, without using drawinteraction
* @prop {function} onEndDrawing action fired when a shape is drawn
* @prop {object} style
*/
// TODO FIX doc
export default class DrawSupport extends React.Component {
static propTypes = {
map: PropTypes.object,
drawOwner: PropTypes.string,
drawStatus: PropTypes.string,
drawMethod: PropTypes.string,
options: PropTypes.object,
features: PropTypes.array,
onChangeDrawingStatus: PropTypes.func,
onGeometryChanged: PropTypes.func,
onDrawStopped: PropTypes.func,
onDrawingFeatures: PropTypes.func,
onSelectFeatures: PropTypes.func,
onEndDrawing: PropTypes.func,
style: PropTypes.object
};
static defaultProps = {
map: null,
drawOwner: null,
drawStatus: null,
drawMethod: null,
features: null,
options: {
stopAfterDrawing: true
},
onChangeDrawingStatus: () => {},
onGeometryChanged: () => {},
onDrawStopped: () => {},
onDrawingFeatures: () => {},
onSelectFeatures: () => {},
onEndDrawing: () => {}
};
/** Inside this lyfecycle method the status is checked to manipulate the behaviour of the DrawSupport.
* @function UNSAFE_componentWillReceiveProps
* Here is the list of all status
* create allows to create features
* start allows to start drawing features
* drawOrEdit allows to start drawing or editing the passed features or both
* stop allows to stop drawing features
* replace allows to replace all the features drawn by Drawsupport with new ones
* clean it cleans the drawn features and stop the drawsupport
* cleanAndContinueDrawing it cleares the drawn features and allows to continue drawing features
* endDrawing as for 'replace' action allows to replace all the features in addition triggers end drawing action to store data in state
*/
UNSAFE_componentWillReceiveProps(newProps) {
if (this.drawLayer) {
this.updateFeatureStyles(newProps.features);
}
if (!newProps.drawStatus && this.selectInteraction) {
this.selectInteraction.getFeatures().clear();
}
if ( this.props.drawStatus !== newProps.drawStatus || this.props.drawMethod !== newProps.drawMethod || this.props.features !== newProps.features) {
switch (newProps.drawStatus) {
case "create": this.addLayer(newProps); break; // deprecated, not used (addLayer is automatically called by other commands when needed)
case "start":/* only starts draw*/ this.addInteractions(newProps); break;
case "drawOrEdit": this.addDrawOrEditInteractions(newProps); break;
case "stop": /* only stops draw*/ this.removeDrawInteraction(); break;
case "replace": this.replaceFeatures(newProps); break;
case "updateStyle": this.updateOnlyFeatureStyles(newProps); break;
case "clean": this.clean(); break;
case "cleanAndContinueDrawing": this.clean(true); break;
case "endDrawing": this.endDrawing(newProps); break;
default : return;
}
}
}
getNewFeature = (newDrawMethod, coordinates, radius, center) => {
return new Feature({
geometry: this.createOLGeometry({type: newDrawMethod, coordinates, radius, center})
});
}
getMapCrs = () => {
return this.props.map.getView().getProjection().getCode();
}
render() {
return null;
}
updateFeatureStyles = (features) => {
if (features && features.length > 0) {
features.forEach(f => {
if (f.style) {
let olFeature = this.toOlFeature(f);
if (olFeature) {
olFeature.setStyle(f.style ? getStyle(f) : this.toOlStyle(f.style, f.selected));
}
}
});
}
};
updateOnlyFeatureStyles = (newProps) => {
if (this.drawLayer) {
this.drawLayer.getSource().getFeatures().forEach(ftOl => {
let features = head(newProps.features).features || newProps.features; // checking FeatureCollection or an array of simple features
let originalGeoJsonFeature = find(features, ftTemp => ftTemp.properties.id === ftOl.getProperties().id);
if (originalGeoJsonFeature) {
// only if it finds a feature drawn then update its style
let promises = createStylesAsync(castArray(originalGeoJsonFeature.style));
axios.all(promises).then((styles) => {
ftOl.setStyle(() => parseStyles({...originalGeoJsonFeature, style: styles}));
});
}
});
}
}
addLayer = (newProps, addInteraction) => {
let layerStyle = null;
const styleType = this.convertGeometryTypeToStyleType(newProps.drawMethod);
/**
This is a style function that applies array of styles to the features.
It takes the style from the features in the props being drawn because
the style array from the geojson feature model is not passed to Feature
@param {object} ftOl it is an Feature object
*/
layerStyle = (ftOl) => {
let originalFeature = head(newProps.features) && find(head(newProps.features).features, ftTemp => ftTemp.properties.id === ftOl.getProperties().id) || null;
if (originalFeature) {
let promises = createStylesAsync(castArray(originalFeature.style));
axios.all(promises).then((styles) => {
ftOl.setStyle(() => parseStyles({...originalFeature, style: styles}));
});
return null;
}
// if the styles is not present in the feature it uses a default one based on the drawMethod basically
return parseStyles({style: defaultStyles[styleType]});
};
this.geojson = new GeoJSON();
this.drawSource = new VectorSource();
this.drawLayer = new VectorLayer({
source: this.drawSource,
zIndex: 100000000,
style: layerStyle
});
this.props.map.addLayer(this.drawLayer);
if (addInteraction) {
this.addInteractions(newProps);
}
let newFeature = head(newProps.features);
if (newFeature && newFeature.features && newFeature.features.length) {
// filtering invalid circles features or keep all when drawing is disabled
const featuresFiltered = newFeature.features.filter(f => !f.properties.isCircle || f.properties.isCircle && !f.properties.canEdit || !newProps.options.drawEnabled);
return this.addFeatures(assign({}, newProps, {features: [{...newFeature, features: featuresFiltered }]}));
}
return this.addFeatures(newProps);
};
addFeatures = ({features, drawMethod, options}) => {
const mapCrs = this.getMapCrs();
let feature;
features.forEach((f) => {
if (f.type === "FeatureCollection") {
let featuresOL = (new GeoJSON()).readFeatures(f);
featuresOL = featuresOL.map(ft => transformPolygonToCircle(ft, mapCrs));
this.drawSource = new VectorSource({
features: featuresOL
});
this.drawLayer.setSource(this.drawSource);
} else {
let center = null;
let geometry = f;
if (geometry.geometry && geometry.geometry.type !== "GeometryCollection") {
geometry = reprojectGeoJson(geometry, geometry.featureProjection, mapCrs).geometry;
}
if (geometry.type !== "GeometryCollection") {
if (drawMethod === "Circle" && geometry && (geometry.properties && geometry.properties.center || geometry.center)) {
center = geometry.properties && geometry.properties.center ? reproject(geometry.properties.center, "EPSG:4326", mapCrs) : geometry.center;
center = [center.x, center.y];
feature = new Feature({
geometry: this.createOLGeometry({type: "Circle", center, projection: "EPSG:3857", radius: geometry.properties && geometry.properties.radius || geometry.radius})
});
} else {
feature = new Feature({
geometry: this.createOLGeometry(geometry.geometry ? geometry.geometry : {...geometry, ...geometry.properties, center })
});
}
feature.setProperties(f.properties);
this.drawSource.addFeature(feature);
}
}
});
// TODO CHECK THIS WITH FeatureCollection
if (features.length === 0 && (options.editEnabled || options.drawEnabled)) {
if (options.transformToFeatureCollection) {
this.drawSource = new VectorSource({
features: (new GeoJSON()).readFeatures(
{
type: "FeatureCollection", features: []
})
});
this.drawLayer.setSource(this.drawSource);
} else {
feature = new Feature({
geometry: this.createOLGeometry({type: drawMethod, coordinates: null})
});
this.drawSource.addFeature(feature);
}
} else {
if (features[0] && features[0].type === "GeometryCollection" ) {
// HERE IT ENTERS WITH EDIT
this.drawSource = new VectorSource({
features: (new GeoJSON()).readFeatures(features[0])
});
let geoms = this.replacePolygonsWithCircles(this.drawSource.getFeatures()[0]);
this.drawSource.getFeatures()[0].getGeometry().setGeometries(geoms);
this.drawLayer.setSource(this.drawSource);
}
if (features[0] && features[0].geometry && features[0].geometry.type === "GeometryCollection" ) {
// HERE IT ENTERS WITH REPLACE
feature = reprojectGeoJson(features[0], options.featureProjection, mapCrs).geometry;
this.drawSource = new VectorSource({
features: (new GeoJSON()).readFeatures(feature)
});
// TODO remove this props
this.drawSource.getFeatures()[0].set("textGeometriesIndexes", features[0].properties && features[0].properties.textGeometriesIndexes);
this.drawSource.getFeatures()[0].set("textValues", features[0].properties && features[0].properties.textValues);
this.drawSource.getFeatures()[0].set("circles", features[0].properties && features[0].properties.circles);
this.drawLayer.setSource(this.drawSource);
}
}
this.updateFeatureStyles(features);
return feature;
};
replaceFeatures = (newProps) => {
let feature;
if (!this.drawLayer) {
feature = this.addLayer(newProps, newProps.options && newProps.options.drawEnabled || false);
} else {
this.drawSource.clear();
feature = this.addFeatures(newProps);
if (newProps.style) {
this.drawLayer.setStyle((ftOl) => {
let originalFeature = find(head(newProps.features).features, ftTemp => ftTemp.properties.id === ftOl.getProperties().id);
if (originalFeature) {
let promises = createStylesAsync(castArray(originalFeature.style));
axios.all(promises).then((styles) => {
ftOl.setStyle(() => parseStyles({...originalFeature, style: styles}));
});
return null;
}
const styleType = this.convertGeometryTypeToStyleType(newProps.drawMethod);
return parseStyles({style: defaultStyles[styleType]});
});
}
}
return feature;
};
endDrawing = (newProps) => {
const olFeature = this.replaceFeatures(newProps);
if (olFeature) {
const feature = this.fromOLFeature(olFeature);
if (newProps.drawMethod === "Circle" && newProps && newProps.features && newProps.features.length && newProps.features[0] && newProps.features[0].radius >= 0) {
// this prevents the radius coming from `fromOLFeature` to override the radius set from an external tool
// this is because `endDrawing` need to impose the radius value, without any re-calculation or approximation
feature.radius = newProps.features[0].radius;
}
this.props.onEndDrawing(feature, newProps.drawOwner);
}
}
addDrawInteraction = (drawMethod, startingPoint, maxPoints, newProps) => {
if (this.drawInteraction) {
this.removeDrawInteraction();
}
this.drawInteraction = new Draw(this.drawPropertiesForGeometryType(drawMethod, maxPoints, this.drawSource, newProps));
this.props.map.disableEventListener('singleclick');
this.drawInteraction.on('drawstart', () => {
if (this.selectInteraction) {
this.selectInteraction.getFeatures().clear();
this.selectInteraction.setActive(false);
}
});
this.drawInteraction.on('drawend', (evt) => {
const sketchFeature = evt.feature.clone();
sketchFeature.set('id', uuid.v1());
if (this.props.drawMethod === "Circle" && sketchFeature.getGeometry().getType() === "Circle") {
const radius = sketchFeature.getGeometry().getRadius();
const center = sketchFeature.getGeometry().getCenter();
sketchFeature.setGeometry(this.polygonFromCircle(center, radius));
}
const feature = this.fromOLFeature(sketchFeature, startingPoint);
this.props.onEndDrawing(feature, this.props.drawOwner);
if (this.props.options.stopAfterDrawing) {
this.props.onChangeDrawingStatus('stop', this.props.drawMethod, this.props.drawOwner, this.props.features.concat([feature]));
}
if (this.selectInteraction) {
// TODO update also the selected features
this.addSelectInteraction();
this.selectInteraction.setActive(true);
}
});
this.props.map.addInteraction(this.drawInteraction);
this.setDoubleClickZoomEnabled(false);
};
toMulti = (geometry) => {
if (geometry.getType() === 'Point') {
return new MultiPoint([geometry.getCoordinates()]);
}
return geometry;
};
handleDrawAndEdit = (drawMethod, startingPoint, maxPoints, newProps) => {
if (this.drawInteraction) {
this.removeDrawInteraction();
}
this.drawInteraction = new Draw(this.drawPropertiesForGeometryType(getSimpleGeomType(drawMethod), maxPoints, isSimpleGeomType(drawMethod) ? this.drawSource : null, newProps ));
this.props.map.disableEventListener('singleclick');
this.drawInteraction.on('drawstart', () => {
if (this.selectInteraction) {
this.selectInteraction.getFeatures().clear();
this.selectInteraction.setActive(false);
}
});
this.drawInteraction.on('drawend', (evt) => {
const sketchFeature = evt.feature.clone();
const id = uuid.v1();
sketchFeature.set('id', id);
let drawnGeom = sketchFeature.getGeometry();
let drawnFeatures = this.drawLayer.getSource().getFeatures();
let previousGeometries;
let features = this.props.features;
let geomCollection;
let newDrawMethod;
if (this.props.options.transformToFeatureCollection) {
let newFeature;
if (drawMethod === "Circle") {
newDrawMethod = "Polygon";
const radius = drawnGeom.getRadius();
let center = drawnGeom.getCenter();
const coordinates = this.polygonCoordsFromCircle(center, radius);
newFeature = this.getNewFeature(newDrawMethod, coordinates);
// TODO verify center is projected in 4326 and is an array
center = reproject(center, this.getMapCrs(), "EPSG:4326", false);
const originalId = newProps && newProps.features && newProps.features.length && newProps.features[0] && newProps.features[0].features && newProps.features[0].features.length && newProps.features[0].features.filter(f => f.properties.isDrawing)[0].properties.id || id;
newFeature.setProperties({isCircle: true, radius, center: [center.x, center.y], id: originalId});
} else if (drawMethod === "Polygon") {
newDrawMethod = this.props.drawMethod;
let coordinates = drawnGeom.getCoordinates();
coordinates[0].push(coordinates[0][0]);
newFeature = this.getNewFeature(newDrawMethod, coordinates);
} else {
newDrawMethod = (drawMethod === "Text") ? "Point" : this.props.drawMethod;
let coordinates = drawnGeom.getCoordinates();
newFeature = this.getNewFeature(newDrawMethod, coordinates);
if (drawMethod === "Text") {
newFeature.setProperties({isText: true, valueText: "."});
}
}
// drawnFeatures is array of Feature
const previousFeatures = drawnFeatures.length >= 1 ? [...this.replaceCirclesWithPolygonsInFeatureColl(drawnFeatures)] : [];
if (!newFeature.getProperties().id) {
newFeature.setProperties({id: uuid.v1()});
}
const newFeatures = [...previousFeatures, newFeature];
// create FeatureCollection externalize as function
let newFeatureColl = geojsonFormat.writeFeaturesObject(newFeatures);
const vectorSource = new VectorSource({
features: (new GeoJSON()).readFeatures(newFeatureColl)
});
this.drawLayer.setSource(vectorSource);
let feature = reprojectGeoJson(newFeatureColl, this.getMapCrs(), "EPSG:4326");
this.props.onGeometryChanged([feature], this.props.drawOwner, this.props.options && this.props.options.stopAfterDrawing ? "enterEditMode" : "", drawMethod === "Text", drawMethod === "Circle");
this.props.onEndDrawing(feature, this.props.drawOwner);
this.props.onDrawingFeatures([last(feature.features)]);
} else {
if (drawMethod === "Circle") {
newDrawMethod = "Polygon";
const radius = drawnGeom.getRadius();
const center = drawnGeom.getCenter();
const coordinates = this.polygonCoordsFromCircle(center, radius);
const newMultiGeom = this.toMulti(this.createOLGeometry({type: newDrawMethod, coordinates}));
if (features.length === 1 && features[0] && !features[0].geometry) {
previousGeometries = [];
geomCollection = new GeometryCollection([newMultiGeom]);
} else {
previousGeometries = this.toMulti(head(drawnFeatures).getGeometry());
if (previousGeometries.getGeometries) {
// transform also previous circles into polygon
const geoms = this.replaceCirclesWithPolygons(head(drawnFeatures));
geomCollection = new GeometryCollection([...geoms, newMultiGeom]);
} else {
geomCollection = new GeometryCollection([previousGeometries, newMultiGeom]);
}
}
sketchFeature.setGeometry(geomCollection);
} else if (drawMethod === "Text" || drawMethod === "MultiPoint") {
let coordinates = drawnGeom.getCoordinates();
newDrawMethod = "MultiPoint";
let newMultiGeom = this.toMulti(this.createOLGeometry({type: newDrawMethod, coordinates: [coordinates]}));
if (features.length === 1 && !features[0].geometry) {
previousGeometries = [];
geomCollection = new GeometryCollection([newMultiGeom]);
} else {
previousGeometries = this.toMulti(head(drawnFeatures).getGeometry());
if (previousGeometries.getGeometries) {
let geoms = this.replaceCirclesWithPolygons(head(drawnFeatures));
geomCollection = new GeometryCollection([...geoms, newMultiGeom]);
} else {
geomCollection = new GeometryCollection([previousGeometries, newMultiGeom]);
}
}
sketchFeature.setGeometry(geomCollection);
} else if (!isSimpleGeomType(drawMethod)) {
let newMultiGeom;
geomCollection = null;
if (features.length === 1 && !features[0].geometry) {
previousGeometries = this.toMulti(this.createOLGeometry({type: drawMethod, coordinates: null}));
} else {
previousGeometries = this.toMulti(head(drawnFeatures).getGeometry());
}
// find geometry of same type
let geometries = drawnFeatures.map(f => {
if (f.getGeometry().getType() === "GeometryCollection") {
return f.getGeometry().getGeometries();
}
return f.getGeometry();
});
if (drawnFeatures[0].getGeometry().getType() === "GeometryCollection") {
geometries = geometries[0];
}
let geomAlreadyPresent = find(geometries, (olGeom) => olGeom.getType() === drawMethod);
if (geomAlreadyPresent) {
// append
this.appendToMultiGeometry(drawMethod, geomAlreadyPresent, drawnGeom);
} else {
// create new multi geom
newMultiGeom = this.toMulti(this.createOLGeometry({type: drawMethod, coordinates: drawnGeom.getCoordinates()}));
}
if (drawnGeom.getType() !== getSimpleGeomType(previousGeometries.getType())) {
let geoms = head(drawnFeatures).getGeometry().getGeometries ? this.replaceCirclesWithPolygons(head(drawnFeatures)) : [];
if (geomAlreadyPresent) {
let newGeoms = geoms.map(gg => {
return gg.getType() === geomAlreadyPresent.getType() ? geomAlreadyPresent : gg;
});
geomCollection = new GeometryCollection(newGeoms);
} else {
if (previousGeometries.getType() === "GeometryCollection") {
geomCollection = new GeometryCollection([...geoms, newMultiGeom]);
} else {
if (drawMethod === "Text") {
geomCollection = new GeometryCollection([newMultiGeom]);
} else {
geomCollection = new GeometryCollection([previousGeometries, newMultiGeom]);
}
}
}
sketchFeature.setGeometry(geomCollection);
} else {
sketchFeature.setGeometry(geomAlreadyPresent);
}
}
let properties = this.props.features[0].properties;
if (drawMethod === "Text") {
properties = assign({}, this.props.features[0].properties, {
textValues: (this.props.features[0].properties.textValues || []).concat(["."]),
textGeometriesIndexes: (this.props.features[0].properties.textGeometriesIndexes || []).concat([sketchFeature.getGeometry().getGeometries().length - 1])
});
}
if (drawMethod === "Circle") {
properties = assign({}, properties, {
circles: (this.props.features[0].properties.circles || []).concat([sketchFeature.getGeometry().getGeometries().length - 1])
});
}
let feature = this.fromOLFeature(sketchFeature, startingPoint, properties);
const vectorSource = new VectorSource({
features: (new GeoJSON()).readFeatures(feature)
});
this.drawLayer.setSource(vectorSource);
let newFeature = reprojectGeoJson(geojsonFormat.writeFeatureObject(sketchFeature.clone()), this.getMapCrs(), "EPSG:4326");
if (newFeature.geometry.type === "Polygon") {
newFeature.geometry.coordinates[0].push(newFeature.geometry.coordinates[0][0]);
}
this.props.onGeometryChanged([newFeature], this.props.drawOwner, this.props.options && this.props.options.stopAfterDrawing ? "enterEditMode" : "", drawMethod === "Text", drawMethod === "Circle");
this.props.onEndDrawing(feature, this.props.drawOwner);
feature = reprojectGeoJson(feature, this.getMapCrs(), "EPSG:4326");
const newFeatures = isSimpleGeomType(this.props.drawMethod) && this.props.features[0].geometry.type !== "GeometryCollection" ?
this.props.features.map(feat => ({
...feat,
featureProjection: this.getMapCrs() // useful for reprojecting it after in replace method flow
})).concat([{
...feature,
type: "Feature",
geometry: {
type: feature.type,
coordinates: feature.coordinates
},
featureProjection: this.getMapCrs(), // useful for reprojecting it after in replace method flow
properties}]) :
[{...feature, properties}];
if (this.props.options.stopAfterDrawing) {
this.props.onChangeDrawingStatus('stop', this.props.drawMethod, this.props.drawOwner, newFeatures);
} else {
this.props.onChangeDrawingStatus('replace', this.props.drawMethod, this.props.drawOwner,
newFeatures.map((f) => reprojectGeoJson(f, "EPSG:4326", this.getMapCrs())),
assign({}, this.props.options, { featureProjection: this.getMapCrs()}));
}
if (this.selectInteraction) {
// TODO update also the selected features
this.addSelectInteraction();
this.selectInteraction.setActive(true);
}
}
});
this.props.map.addInteraction(this.drawInteraction);
this.setDoubleClickZoomEnabled(false);
};
drawPropertiesForGeometryType = (geometryType, maxPoints, source, newProps = {}) => {
let drawBaseProps = {
source: this.drawSource || source,
type: /** @type {ol.geom.GeometryType} */ geometryType,
style: geometryType === "Marker" ? getMarkerStyle(newProps.style) : new Style({
fill: new Fill({
color: 'rgba(255, 255, 255, 0.2)'
}),
stroke: new Stroke({
color: 'rgba(0, 0, 0, 0.5)',
lineDash: [10, 10],
width: 2
}),
image: new CircleStyle({
radius: 5,
stroke: new Stroke({
color: 'rgba(0, 0, 0, 0.7)'
}),
fill: new Fill({
color: 'rgba(255, 255, 255, 0.2)'
})
})
}),
features: new Collection(),
condition: always
};
let roiProps = {};
switch (geometryType) {
case "BBOX": {
roiProps.type = "LineString";
roiProps.maxPoints = 2;
roiProps.geometryFunction = function(coordinates, geometry) {
let geom = geometry;
if (!geom) {
geom = new Polygon([]);
}
let start = coordinates[0];
let end = coordinates[1];
geom.setCoordinates(
[
[
start,
[start[0], end[1]],
end,
[end[0],
start[1]], start
]
]);
return geom;
};
break;
}
case "Circle": {
roiProps.maxPoints = 100;
if (newProps.options && newProps.options.geodesic) {
roiProps.geometryFunction = (coordinates, geometry) => {
let geom = geometry;
if (!geom) {
geom = new Polygon([]);
geom.setProperties({ geodesicCenter: [...coordinates[0]] }, true);
}
let projection = this.props.map.getView().getProjection().getCode();
let wgs84Coordinates = [...coordinates].map((coordinate) => {
return this.reprojectCoordinatesToWGS84(coordinate, projection);
});
let radius = calculateDistance(wgs84Coordinates, 'haversine');
let coords = circular(wgs84Coordinates[0], radius).clone().transform('EPSG:4326', projection).getCoordinates();
geom.setCoordinates(coords);
return geom;
};
} else {
roiProps.type = geometryType;
}
break;
}
case "Marker": case "Point": case "Text": case "LineString": case "Polygon": case "MultiPoint": case "MultiLineString": case "MultiPolygon": case "GeometryCollection": {
if (geometryType === "LineString") {
roiProps.maxPoints = maxPoints;
}
let geomType = geometryType === "Text" || geometryType === "Marker" ? "Point" : geometryType;
roiProps.type = geomType;
roiProps.geometryFunction = (coordinates, geometry) => {
let geom = geometry;
if (!geom) {
geom = this.createOLGeometry({ type: geomType, coordinates: null, options: newProps.options });
}
geom.setCoordinates(coordinates);
return geom;
};
break;
}
default: return {};
}
return assign({}, drawBaseProps, roiProps);
};
setDoubleClickZoomEnabled = (enabled) => {
let interactions = this.props.map.getInteractions();
for (let i = 0; i < interactions.getLength(); i++) {
let interaction = interactions.item(i);
if (interaction instanceof DoubleClickZoom) {
interaction.setActive(enabled);
break;
}
}
};
updateFeatureExtent = (event) => {
const movedFeatures = event.features.getArray();
const updatedFeatures = this.props.features.map((f) => {
const moved = head(movedFeatures.filter((mf) => this.fromOLFeature(mf).id === f.id));
return moved ? assign({}, f, {
geometry: moved.geometry,
center: moved.center,
extent: moved.extent,
coordinate: moved.coordinates,
radius: moved.radius
}) : f;
});
this.props.onChangeDrawingStatus('replace', this.props.drawMethod, this.props.drawOwner, updatedFeatures);
};
addInteractions = (newProps) => {
this.clean();
if (!this.drawLayer) {
this.addLayer(newProps);
}
this.addDrawInteraction(newProps.drawMethod, newProps.options.startingPoint, newProps.options.maxPoints, newProps);
if (newProps.options && newProps.options.editEnabled) {
this.addSelectInteraction();
if (this.translateInteraction) {
this.props.map.removeInteraction(this.translateInteraction);
}
this.translateInteraction = new Translate({
features: this.selectInteraction.getFeatures()
});
this.translateInteraction.setActive(false);
this.translateInteraction.on('translateend', this.updateFeatureExtent);
this.props.map.addInteraction(this.translateInteraction);
this.addTranslateListener();
if (this.modifyInteraction) {
this.props.map.removeInteraction(this.modifyInteraction);
}
this.modifyInteraction = new Modify({
features: this.selectInteraction.getFeatures(),
condition: (e) => {
return primaryAction(e) && !altKeyOnly(e);
}
});
this.props.map.addInteraction(this.modifyInteraction);
}
this.drawSource.clear();
if (newProps.features.length > 0 ) {
this.addFeatures(newProps);
}
};
addSingleClickListener = (singleclickCallback, props) => {
let evtKey = props.map.on('singleclick', singleclickCallback);
return evtKey;
};
addDrawOrEditInteractions = (newProps) => {
if (this.state && this.state.keySingleClickCallback) {
unByKey(this.state.keySingleClickCallback);
}
const singleClickCallback = (event) => {
if (this.drawSource && newProps.options) {
let previousFeatures = this.drawSource.getFeatures();
let previousFtIndex = 0;
const previousFt = previousFeatures && previousFeatures.length && previousFeatures.filter((f, i) => {
if (f.getProperties().canEdit) {
previousFtIndex = i;
}
return f.getProperties().canEdit;
})[0] || null;
const previousCoords = previousFt && previousFt.getGeometry() && previousFt.getGeometry().getCoordinates && previousFt.getGeometry().getCoordinates() || [];
let actualCoords = [];
let olFt;
let newDrawMethod = newProps.drawMethod;
switch (newDrawMethod) {
case "Polygon": {
if (previousCoords.length) {
if (isCompletePolygon(previousCoords)) {
// insert at penultimate position
actualCoords = slice(previousCoords[0], 0, previousCoords[0].length - 1);
actualCoords = actualCoords.concat([event.coordinate]);
actualCoords = [actualCoords.concat([previousCoords[0][0]])];
} else {
// insert at ultimate position if more than 2 point
actualCoords = previousCoords[0].length > 1 ? [[...previousCoords[0], event.coordinate, previousCoords[0][0] ]] : [[...previousCoords[0], event.coordinate ]];
}
} else {
// insert at first position
actualCoords = [[event.coordinate]];
}
olFt = this.getNewFeature(newDrawMethod, actualCoords);
olFt.setProperties(omit(previousFt && previousFt.getProperties() || {}, "geometry"));
break;
}
case "LineString": case "MultiPoint": {
actualCoords = previousCoords.length ? [...previousCoords, event.coordinate] : [event.coordinate];
olFt = this.getNewFeature(newDrawMethod, actualCoords);
olFt.setProperties(omit(previousFt && previousFt.getProperties() || {}, "geometry"));
break;
}
case "Circle": {
newDrawMethod = "Polygon";
const radius = previousFt && previousFt.getProperties() && previousFt.getProperties().radius || 10000;
let center = event.coordinate;
const coords = this.polygonCoordsFromCircle(center, radius);
olFt = this.getNewFeature(newDrawMethod, coords);
// TODO verify center is projected in 4326 and is an array
center = reproject(center, this.getMapCrs(), "EPSG:4326", false);
olFt.setProperties(omit(previousFt && previousFt.getProperties() || {}, "geometry"));
olFt.setProperties({isCircle: true, radius, center: [center.x, center.y]});
break;
}
case "Text": {
newDrawMethod = "Point";
olFt = this.getNewFeature(newDrawMethod, event.coordinate);
olFt.setProperties(omit(previousFt && previousFt.getProperties() || {}, "geometry"));
olFt.setProperties({isText: true, valueText: previousFt && previousFt.getProperties() && previousFt.getProperties().valueText || newProps.options.defaultTextAnnotation || "New" });
break;
}
// point
default: {
actualCoords = event.coordinate;
olFt = this.getNewFeature(newDrawMethod, actualCoords);
olFt.setProperties(omit(previousFt && previousFt.getProperties() || {}, "geometry"));
}
}
let drawnFtWGS84 = reprojectGeoJson(geojsonFormat.writeFeaturesObject([olFt.clone()]), this.getMapCrs(), "EPSG:4326");
const coordinates = [...drawnFtWGS84.features[0].geometry.coordinates];
let ft = {
type: "Feature",
geometry: {
coordinates,
type: newDrawMethod
},
properties: {
...omit(olFt.getProperties(), "geometry")
}
};
this.props.onDrawingFeatures([ft]);
olFt = transformPolygonToCircle(olFt, this.getMapCrs());
previousFeatures[previousFtIndex] = olFt;
this.drawSource = new VectorSource({
features: previousFeatures
});
this.drawLayer.setSource(this.drawSource);
this.addModifyInteraction(newProps);
}
};
this.clean();
let newFeature = reprojectGeoJson(head(newProps.features), newProps.options.featureProjection, this.getMapCrs()) || {};
let props;
if (newFeature && newFeature.features && newFeature.features.length) {
// filtering circles features only when drawing
props = assign({}, newProps, {features: [newFeature]});
} else {
if (newFeature && newFeature.properties && newFeature.properties.isCircle) {
props = assign({}, newProps, {features: []});
} else {
props = assign({}, newProps, {features: newFeature.geometry ? [{...newFeature.geometry, properties: newFeature.properties}] : []});
}
}
// TODO investigate if this newFeature.geometry is needed instead of only newFeature
if (!this.drawLayer) {
this.addLayer(props);
} else {
this.drawSource.clear();
this.addFeatures(props);
}
if (newProps.options.editEnabled) {
this.addModifyInteraction(newProps);
// removed for polygon because of the issue https://github.com/geosolutions-it/MapStore2/issues/2378
if (newProps.options.translateEnabled !== false) {
this.addTranslateInteraction();
}
if (newProps.options.addClickCallback) {
this.setState({keySingleClickCallback: this.addSingleClickListener(singleClickCallback, newProps)});
}
}
if (newProps.options && newProps.options.selectEnabled) {
this.addSelectInteraction(newProps.options && newProps.options.selected, newProps);
}
if (newProps.options.drawEnabled) {
this.handleDrawAndEdit(newProps.drawMethod, newProps.options.startingPoint, newProps.options.maxPoints, newProps);
}
};
addSelectInteraction = (selectedFeature, props) => {
if (this.selectInteraction) {
this.props.map.removeInteraction(this.selectInteraction);
}
let olFt;
if (selectedFeature) {
olFt = find(this.drawSource.getFeatures(), f => f.getProperties().id === selectedFeature.properties.id );
if (olFt) {
this.selectFeature(olFt);
}
}
this.selectInteraction = new Select({
layers: [this.drawLayer],
features: new Collection(selectedFeature && olFt ? [olFt] : null)
});
if (olFt) {
const styleType = this.convertGeometryTypeToStyleType(props.drawMethod);
olFt.setStyle(getStyle({ ...props, style: {...props.style, type: styleType, highlight: true, useSelectedStyle: props.options.useSelectedStyle }}, false, props.features[0] && props.features[0].properties && props.features[0].properties.valueText && [props.features[0].properties.valueText] || [] ));
}
this.selectInteraction.on('select', (evt) => {
let selectedFeatures = this.selectInteraction.getFeatures().getArray();
let featuresSelected = [];
if (selectedFeatures.length) {
featuresSelected = this.props.features.map(f => {
let selected = false;
if (f.type === "FeatureCollection" && selectedFeatures.length > 0) {
let ftSelected = head(selectedFeatures);
this.selectFeature(ftSelected);
// TODO SELECT SMALLEST ONE IF THERE ARE >= 2 features selected
if (ftSelected.getGeometry && ftSelected.getGeometry().getType() === "Circle") {
let radius = ftSelected.getGeometry().getRadius();
let center = reproject(ftSelected.getGeometry().getCenter(), this.getMapCrs(), "EPSG:4326");
ftSelected.setProperties({center: [center.x, center.y], radius});
ftSelected = this.replaceCircleWithPolygon(ftSelected.clone());
}
this.drawSource.getFeatures().forEach(feat => {
if (feat.getProperties().id === ftSelected.getProperties().id) {
this.selectFeature(ftSelected);
} else {
this.deselectFeature(feat);
}
});
return reprojectGeoJson(geojsonFormat.writeFeatureObject(ftSelected.clone()), this.getMapCrs(), "EPSG:4326");
}
selected = selectedFeatures.reduce((previous, current) => {
return current.get('id') === f.id ? true : previous;
}, false);
return assign({}, f, { selected: selected, selectedFeature: evt.selected });
});
this.props.onSelectFeatures(featuresSelected);
}
if (selectedFeatures.length === 0) {
this.props.onSelectFeatures([]);
this.drawSource.getFeatures().map( ft => this.deselectFeature(ft));
return null;
}
return null;
});
this.props.map.addInteraction(this.selectInteraction);
};
selectFeature = (f) => {
f.setProperties({selected: true});
}
deselectFeature = (f) => {
f.setProperties({selected: false});
}
removeDrawInteraction = () => {
if (this.drawInteraction) {
this.props.map.removeInteraction(this.drawInteraction);
this.drawInteraction = null;
/** Map Singleclick event is dealyed by 250 ms see here
* https://openlayers.org/en/latest/apidoc/ol.MapBrowserEvent.html#event:singleclick
* This timeout prevents ol map to throw mapClick event that has alredy been managed
* by the draw interaction.
*/
setTimeout(() => this.props.map.enableEventListener('singleclick'), 500);
setTimeout(() => this.setDoubleClickZoomEnabled(true), 250);
}
};
removeInteractions = () => {
this.removeDrawInteraction();