Move vector code out of the way
This commit is contained in:
Tom Payne
@@ -1,525 +0,0 @@
|
||||
goog.provide('ol.interaction.Modify');
|
||||
|
||||
goog.require('goog.array');
|
||||
goog.require('goog.asserts');
|
||||
goog.require('goog.events');
|
||||
goog.require('goog.functions');
|
||||
goog.require('goog.object');
|
||||
goog.require('ol.CollectionEventType');
|
||||
goog.require('ol.Feature');
|
||||
goog.require('ol.MapBrowserEvent.EventType');
|
||||
goog.require('ol.ViewHint');
|
||||
goog.require('ol.coordinate');
|
||||
goog.require('ol.extent');
|
||||
goog.require('ol.geom.AbstractCollection');
|
||||
goog.require('ol.geom.LineString');
|
||||
goog.require('ol.geom.LinearRing');
|
||||
goog.require('ol.geom.Point');
|
||||
goog.require('ol.geom.Polygon');
|
||||
goog.require('ol.interaction.Drag');
|
||||
goog.require('ol.layer.Layer');
|
||||
goog.require('ol.layer.Vector');
|
||||
goog.require('ol.layer.VectorEventType');
|
||||
goog.require('ol.layer.VectorLayerRenderIntent');
|
||||
goog.require('ol.source.Vector');
|
||||
goog.require('ol.structs.RTree');
|
||||
|
||||
|
||||
/**
|
||||
* @typedef {{feature: ol.Feature,
|
||||
* geometry: ol.geom.Geometry,
|
||||
* index: (number|undefined),
|
||||
* style: ol.style.Style,
|
||||
* segment: (Array.<ol.Extent>|undefined)}}
|
||||
*/
|
||||
ol.interaction.SegmentDataType;
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @constructor
|
||||
* @extends {ol.interaction.Drag}
|
||||
* @param {ol.interaction.ModifyOptions=} opt_options Options.
|
||||
*/
|
||||
ol.interaction.Modify = function(opt_options) {
|
||||
goog.base(this);
|
||||
|
||||
var options = goog.isDef(opt_options) ? opt_options : {};
|
||||
|
||||
var layerFilter = options.layers;
|
||||
if (!goog.isDef(layerFilter)) {
|
||||
layerFilter = goog.functions.TRUE;
|
||||
} else if (goog.isArray(layerFilter)) {
|
||||
layerFilter = function(layer) {return options.layers.indexOf(layer) > -1;};
|
||||
}
|
||||
goog.asserts.assertFunction(layerFilter);
|
||||
|
||||
/**
|
||||
* @type {function(ol.layer.Layer):boolean}
|
||||
* @private
|
||||
*/
|
||||
this.layerFilter_ = layerFilter;
|
||||
|
||||
/**
|
||||
* Temporary sketch layer.
|
||||
* @type {ol.layer.Vector}
|
||||
* @private
|
||||
*/
|
||||
this.sketchLayer_ = null;
|
||||
|
||||
/**
|
||||
* Editing vertex.
|
||||
* @type {ol.Feature}
|
||||
* @private
|
||||
*/
|
||||
this.vertexFeature_ = null;
|
||||
|
||||
/**
|
||||
* @type {boolean}
|
||||
* @private
|
||||
*/
|
||||
this.modifiable_ = false;
|
||||
|
||||
/**
|
||||
* Segment RTree for each layer
|
||||
* @type {Object.<*, ol.structs.RTree>}
|
||||
* @private
|
||||
*/
|
||||
this.rTree_ = null;
|
||||
|
||||
/**
|
||||
* @type {number}
|
||||
* @private
|
||||
*/
|
||||
this.pixelTolerance_ = goog.isDef(options.pixelTolerance) ?
|
||||
options.pixelTolerance : 20;
|
||||
|
||||
/**
|
||||
* @type {Array}
|
||||
* @private
|
||||
*/
|
||||
this.dragSegments_ = null;
|
||||
|
||||
};
|
||||
goog.inherits(ol.interaction.Modify, ol.interaction.Drag);
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
ol.interaction.Modify.prototype.setMap = function(map) {
|
||||
var oldMap = this.getMap();
|
||||
var layers;
|
||||
if (!goog.isNull(oldMap)) {
|
||||
oldMap.removeLayer(this.sketchLayer_);
|
||||
layers = oldMap.getLayerGroup().getLayers();
|
||||
goog.asserts.assert(goog.isDef(layers));
|
||||
layers.forEach(goog.bind(this.removeLayer_, this));
|
||||
layers.unlisten(ol.CollectionEventType.ADD, this.handleLayerAdded_, false,
|
||||
this);
|
||||
layers.unlisten(ol.CollectionEventType.REMOVE, this.handleLayerRemoved_,
|
||||
false, this);
|
||||
}
|
||||
|
||||
if (!goog.isNull(map)) {
|
||||
if (goog.isNull(this.rTree_)) {
|
||||
this.rTree_ = new ol.structs.RTree();
|
||||
}
|
||||
if (goog.isNull(this.sketchLayer_)) {
|
||||
var sketchLayer = new ol.layer.Vector({
|
||||
source: new ol.source.Vector({parser: null})
|
||||
});
|
||||
this.sketchLayer_ = sketchLayer;
|
||||
sketchLayer.setTemporary(true);
|
||||
map.addLayer(sketchLayer);
|
||||
}
|
||||
layers = map.getLayerGroup().getLayers();
|
||||
goog.asserts.assert(goog.isDef(layers));
|
||||
layers.forEach(goog.bind(this.addLayer_, this));
|
||||
layers.listen(ol.CollectionEventType.ADD, this.handleLayerAdded_, false,
|
||||
this);
|
||||
layers.listen(ol.CollectionEventType.REMOVE, this.handleLayerRemoved_,
|
||||
false, this);
|
||||
} else {
|
||||
// removing from a map, clean up
|
||||
this.rTree_ = null;
|
||||
this.sketchLayer_ = null;
|
||||
}
|
||||
|
||||
goog.base(this, 'setMap', map);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.CollectionEvent} evt Event.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleLayerAdded_ = function(evt) {
|
||||
var layer = evt.getElement();
|
||||
goog.asserts.assertInstanceof(layer, ol.layer.Layer);
|
||||
this.addLayer_(layer);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Add a layer for modification.
|
||||
* @param {ol.layer.Layer} layer Layer.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.addLayer_ = function(layer) {
|
||||
if (this.layerFilter_(layer) && layer instanceof ol.layer.Vector &&
|
||||
!layer.getTemporary()) {
|
||||
this.addIndex_(layer.getFeatures(ol.layer.Vector.selectedFeaturesFilter),
|
||||
layer);
|
||||
goog.events.listen(layer, ol.layer.VectorEventType.INTENTCHANGE,
|
||||
this.handleIntentChange_, false, this);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.CollectionEvent} evt Event.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleLayerRemoved_ = function(evt) {
|
||||
var layer = evt.getElement();
|
||||
goog.asserts.assertInstanceof(layer, ol.layer.Layer);
|
||||
this.removeLayer_(layer);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Remove a layer for modification.
|
||||
* @param {ol.layer.Layer} layer Layer.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.removeLayer_ = function(layer) {
|
||||
if (this.layerFilter_(layer) && layer instanceof ol.layer.Vector &&
|
||||
!layer.getTemporary()) {
|
||||
this.removeIndex_(
|
||||
layer.getFeatures(ol.layer.Vector.selectedFeaturesFilter));
|
||||
goog.events.unlisten(layer, ol.layer.VectorEventType.INTENTCHANGE,
|
||||
this.handleIntentChange_, false, this);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {Array.<ol.Feature>} features Array of features.
|
||||
* @param {ol.layer.Vector} layer Layer the features belong to.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.addIndex_ = function(features, layer) {
|
||||
for (var i = 0, ii = features.length; i < ii; ++i) {
|
||||
var feature = features[i];
|
||||
var geometry = feature.getGeometry();
|
||||
if (geometry instanceof ol.geom.AbstractCollection) {
|
||||
var components = geometry.getComponents();
|
||||
for (var j = 0, jj = components.length; j < jj; ++j) {
|
||||
this.addSegments_(feature, components[j], layer);
|
||||
}
|
||||
} else {
|
||||
this.addSegments_(feature, geometry, layer);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {Array.<ol.Feature>} features Array of features.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.removeIndex_ = function(features) {
|
||||
var rTree = this.rTree_;
|
||||
for (var i = 0, ii = features.length; i < ii; ++i) {
|
||||
var feature = features[i];
|
||||
var segmentDataMatches = rTree.search(feature.getGeometry().getBounds(),
|
||||
goog.getUid(feature));
|
||||
for (var j = segmentDataMatches.length - 1; j >= 0; --j) {
|
||||
var segmentDataMatch = segmentDataMatches[j];
|
||||
rTree.remove(ol.extent.boundingExtent(segmentDataMatch.segment),
|
||||
segmentDataMatch);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Listen for feature additions.
|
||||
* @param {ol.layer.VectorEvent} evt Event object.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleIntentChange_ = function(evt) {
|
||||
var layer = evt.target;
|
||||
goog.asserts.assertInstanceof(layer, ol.layer.Vector);
|
||||
var features = evt.features;
|
||||
for (var i = 0, ii = features.length; i < ii; ++i) {
|
||||
var feature = features[i];
|
||||
var renderIntent = feature.getRenderIntent();
|
||||
if (renderIntent == ol.layer.VectorLayerRenderIntent.SELECTED) {
|
||||
this.addIndex_([feature], layer);
|
||||
} else {
|
||||
this.removeIndex_([feature]);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.Feature} feature Feature to add segments for.
|
||||
* @param {ol.geom.Geometry} geometry Geometry to add segments for.
|
||||
* @param {ol.layer.Vector} layer Vector layer to add segments for.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.addSegments_ =
|
||||
function(feature, geometry, layer) {
|
||||
var uid = goog.getUid(feature);
|
||||
var rTree = this.rTree_;
|
||||
var segment, segmentData, coordinates;
|
||||
if (geometry instanceof ol.geom.Point) {
|
||||
segmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
||||
feature: feature,
|
||||
geometry: geometry,
|
||||
style: layer.getStyle()
|
||||
});
|
||||
rTree.insert(geometry.getBounds(), segmentData, uid);
|
||||
} else if (geometry instanceof ol.geom.LineString ||
|
||||
geometry instanceof ol.geom.LinearRing) {
|
||||
coordinates = geometry.getCoordinates();
|
||||
for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
|
||||
segment = coordinates.slice(i, i + 2);
|
||||
segmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
||||
feature: feature,
|
||||
geometry: geometry,
|
||||
index: i,
|
||||
style: layer.getStyle(),
|
||||
segment: segment
|
||||
});
|
||||
rTree.insert(ol.extent.boundingExtent(segment), segmentData, uid);
|
||||
}
|
||||
} else if (geometry instanceof ol.geom.Polygon) {
|
||||
var rings = geometry.getRings();
|
||||
for (var j = 0, jj = rings.length; j < jj; ++j) {
|
||||
this.addSegments_(feature, rings[j], layer);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.style.Style} style Style of the layer that the feature being
|
||||
* modified belongs to.
|
||||
* @param {ol.Coordinate} coordinates Coordinates.
|
||||
* @return {ol.Feature} Vertex feature.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.createOrUpdateVertexFeature_ =
|
||||
function(style, coordinates) {
|
||||
var vertexFeature = this.vertexFeature_;
|
||||
if (goog.isNull(vertexFeature)) {
|
||||
vertexFeature = new ol.Feature({g: new ol.geom.Point(coordinates)});
|
||||
this.vertexFeature_ = vertexFeature;
|
||||
this.sketchLayer_.addFeatures([vertexFeature]);
|
||||
} else {
|
||||
var geometry = vertexFeature.getGeometry();
|
||||
geometry.setCoordinates(coordinates);
|
||||
}
|
||||
if (this.sketchLayer_.getStyle() !== style) {
|
||||
this.sketchLayer_.setStyle(style);
|
||||
}
|
||||
return vertexFeature;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleDragStart = function(evt) {
|
||||
this.dragSegments_ = [];
|
||||
var vertexFeature = this.vertexFeature_;
|
||||
if (!goog.isNull(vertexFeature) && vertexFeature.getRenderIntent() !=
|
||||
ol.layer.VectorLayerRenderIntent.HIDDEN) {
|
||||
var renderIntent = vertexFeature.getRenderIntent();
|
||||
var insertVertices = [];
|
||||
var vertex = vertexFeature.getGeometry().getCoordinates();
|
||||
var vertexExtent = ol.extent.boundingExtent([vertex]);
|
||||
var segmentDataMatches = this.rTree_.search(vertexExtent);
|
||||
var distinctFeatures = {};
|
||||
for (var i = 0, ii = segmentDataMatches.length; i < ii; ++i) {
|
||||
var segmentDataMatch = segmentDataMatches[i];
|
||||
var segment = segmentDataMatch.segment;
|
||||
if (!(goog.getUid(segmentDataMatch.feature) in distinctFeatures)) {
|
||||
var feature = segmentDataMatch.feature;
|
||||
distinctFeatures[goog.getUid(feature)] = true;
|
||||
var original = new ol.Feature(feature.getAttributes());
|
||||
original.setGeometry(feature.getGeometry().clone());
|
||||
original.setId(feature.getId());
|
||||
original.setOriginal(feature.getOriginal());
|
||||
original.setSymbolizers(feature.getSymbolizers());
|
||||
feature.setOriginal(original);
|
||||
}
|
||||
if (renderIntent == ol.layer.VectorLayerRenderIntent.TEMPORARY) {
|
||||
if (ol.coordinate.equals(segment[0], vertex)) {
|
||||
this.dragSegments_.push([segmentDataMatch, 0]);
|
||||
} else if (ol.coordinate.equals(segment[1], vertex)) {
|
||||
this.dragSegments_.push([segmentDataMatch, 1]);
|
||||
}
|
||||
} else if (
|
||||
ol.coordinate.squaredDistanceToSegment(vertex, segment) === 0) {
|
||||
insertVertices.push([segmentDataMatch, vertex]);
|
||||
}
|
||||
}
|
||||
for (i = insertVertices.length - 1; i >= 0; --i) {
|
||||
this.insertVertex_.apply(this, insertVertices[i]);
|
||||
}
|
||||
}
|
||||
return this.modifiable_;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleDrag = function(evt) {
|
||||
var vertex = evt.getCoordinate();
|
||||
for (var i = 0, ii = this.dragSegments_.length; i < ii; ++i) {
|
||||
var dragSegment = this.dragSegments_[i];
|
||||
var segmentData = dragSegment[0];
|
||||
var feature = segmentData.feature;
|
||||
var geometry = segmentData.geometry;
|
||||
var coordinates = geometry.getCoordinates();
|
||||
|
||||
var oldBounds, newBounds;
|
||||
if (geometry instanceof ol.geom.Point) {
|
||||
oldBounds = geometry.getBounds();
|
||||
geometry.setCoordinates(vertex);
|
||||
newBounds = geometry.getBounds();
|
||||
} else {
|
||||
var index = dragSegment[1];
|
||||
coordinates[segmentData.index + index] = vertex;
|
||||
geometry.setCoordinates(coordinates);
|
||||
var segment = segmentData.segment;
|
||||
oldBounds = ol.extent.boundingExtent(segment);
|
||||
segment[index] = vertex;
|
||||
newBounds = ol.extent.boundingExtent(segment);
|
||||
}
|
||||
this.createOrUpdateVertexFeature_(segmentData.style, vertex);
|
||||
this.rTree_.remove(oldBounds, segmentData);
|
||||
this.rTree_.insert(newBounds, segmentData, goog.getUid(feature));
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleMapBrowserEvent =
|
||||
function(mapBrowserEvent) {
|
||||
if (!mapBrowserEvent.map.getView().getHints()[ol.ViewHint.INTERACTING] &&
|
||||
!this.getDragging() &&
|
||||
mapBrowserEvent.type == ol.MapBrowserEvent.EventType.MOUSEMOVE) {
|
||||
this.handleMouseMove_(mapBrowserEvent);
|
||||
}
|
||||
goog.base(this, 'handleMapBrowserEvent', mapBrowserEvent);
|
||||
return !this.modifiable_;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.MapBrowserEvent} evt Event.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.handleMouseMove_ = function(evt) {
|
||||
var map = evt.map;
|
||||
var pixel = evt.getPixel();
|
||||
var pixelCoordinate = map.getCoordinateFromPixel(pixel);
|
||||
var sortByDistance = function(a, b) {
|
||||
return ol.coordinate.squaredDistanceToSegment(pixelCoordinate, a.segment) -
|
||||
ol.coordinate.squaredDistanceToSegment(pixelCoordinate, b.segment);
|
||||
};
|
||||
|
||||
var lowerLeft = map.getCoordinateFromPixel(
|
||||
[pixel[0] - this.pixelTolerance_, pixel[1] + this.pixelTolerance_]);
|
||||
var upperRight = map.getCoordinateFromPixel(
|
||||
[pixel[0] + this.pixelTolerance_, pixel[1] - this.pixelTolerance_]);
|
||||
var box = ol.extent.boundingExtent([lowerLeft, upperRight]);
|
||||
|
||||
this.modifiable_ = false;
|
||||
var vertexFeature = this.vertexFeature_;
|
||||
var rTree = this.rTree_;
|
||||
var segmentDataMatches = rTree.search(box);
|
||||
var renderIntent = ol.layer.VectorLayerRenderIntent.HIDDEN;
|
||||
if (segmentDataMatches.length > 0) {
|
||||
segmentDataMatches.sort(sortByDistance);
|
||||
var segmentDataMatch = segmentDataMatches[0];
|
||||
var segment = segmentDataMatch.segment; // the closest segment
|
||||
var vertex = (ol.coordinate.closestOnSegment(pixelCoordinate, segment));
|
||||
var vertexPixel = map.getPixelFromCoordinate(vertex);
|
||||
if (Math.sqrt(ol.coordinate.squaredDistance(pixel, vertexPixel)) <=
|
||||
this.pixelTolerance_) {
|
||||
var pixel1 = map.getPixelFromCoordinate(segment[0]);
|
||||
var pixel2 = map.getPixelFromCoordinate(segment[1]);
|
||||
var squaredDist1 = ol.coordinate.squaredDistance(vertexPixel, pixel1);
|
||||
var squaredDist2 = ol.coordinate.squaredDistance(vertexPixel, pixel2);
|
||||
var dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));
|
||||
renderIntent = ol.layer.VectorLayerRenderIntent.FUTURE;
|
||||
if (dist <= 10) {
|
||||
vertex = squaredDist1 > squaredDist2 ? segment[1] : segment[0];
|
||||
renderIntent = ol.layer.VectorLayerRenderIntent.TEMPORARY;
|
||||
}
|
||||
vertexFeature = this.createOrUpdateVertexFeature_(segmentDataMatch.style,
|
||||
vertex);
|
||||
this.modifiable_ = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (!goog.isNull(vertexFeature) &&
|
||||
renderIntent != vertexFeature.getRenderIntent()) {
|
||||
vertexFeature.setRenderIntent(renderIntent);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.interaction.SegmentDataType} segmentData Segment data.
|
||||
* @param {ol.Coordinate} vertex Vertex.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Modify.prototype.insertVertex_ =
|
||||
function(segmentData, vertex) {
|
||||
var segment = segmentData.segment;
|
||||
var feature = segmentData.feature;
|
||||
var geometry = segmentData.geometry;
|
||||
var index = segmentData.index;
|
||||
var coordinates = geometry.getCoordinates();
|
||||
coordinates.splice(index + 1, 0, vertex);
|
||||
geometry.setCoordinates(coordinates);
|
||||
var rTree = this.rTree_;
|
||||
goog.asserts.assert(goog.isDef(segment));
|
||||
rTree.remove(ol.extent.boundingExtent(segment), segmentData);
|
||||
var uid = goog.getUid(feature);
|
||||
var segmentDataMatches = this.rTree_.search(geometry.getBounds(), uid);
|
||||
for (var i = 0, ii = segmentDataMatches.length; i < ii; ++i) {
|
||||
var segmentDataMatch = segmentDataMatches[i];
|
||||
if (segmentDataMatch.geometry === geometry &&
|
||||
segmentDataMatch.index > index) {
|
||||
++segmentDataMatch.index;
|
||||
}
|
||||
}
|
||||
var newSegmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
||||
style: segmentData.style,
|
||||
segment: [segment[0], vertex],
|
||||
feature: feature,
|
||||
geometry: geometry,
|
||||
index: index
|
||||
});
|
||||
rTree.insert(ol.extent.boundingExtent(newSegmentData.segment), newSegmentData,
|
||||
uid);
|
||||
this.dragSegments_.push([newSegmentData, 1]);
|
||||
newSegmentData = goog.object.clone(newSegmentData);
|
||||
newSegmentData.segment = [vertex, segment[1]];
|
||||
newSegmentData.index += 1;
|
||||
rTree.insert(ol.extent.boundingExtent(newSegmentData.segment), newSegmentData,
|
||||
uid);
|
||||
this.dragSegments_.push([newSegmentData, 0]);
|
||||
};
|
||||
Reference in New Issue
Block a user