328 lines
11 KiB
JavaScript
328 lines
11 KiB
JavaScript
goog.provide('ol.renderer.vector');
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goog.require('goog.asserts');
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goog.require('ol.geom.Circle');
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goog.require('ol.geom.GeometryCollection');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.MultiLineString');
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goog.require('ol.geom.MultiPoint');
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goog.require('ol.geom.MultiPolygon');
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goog.require('ol.geom.Point');
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goog.require('ol.geom.Polygon');
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goog.require('ol.render.IReplayGroup');
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goog.require('ol.style.ImageState');
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goog.require('ol.style.Style');
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/**
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* @param {ol.Feature} feature1 Feature 1.
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* @param {ol.Feature} feature2 Feature 2.
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* @return {number} Order.
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*/
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ol.renderer.vector.defaultOrder = function(feature1, feature2) {
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return goog.getUid(feature1) - goog.getUid(feature2);
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderCircleGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.Circle);
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var fillStyle = style.getFill();
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var strokeStyle = style.getStroke();
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if (!goog.isNull(fillStyle) || !goog.isNull(strokeStyle)) {
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var polygonReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.POLYGON);
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polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
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polygonReplay.drawCircleGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry.getCenter(), 0, 2, 2, geometry, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.Feature} feature Feature.
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* @param {ol.style.Style} style Style.
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* @param {number} squaredTolerance Squared tolerance.
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* @param {Object} data Opaque data object.
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* @param {function(this: T, goog.events.Event)} listener Listener function.
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* @param {T} thisArg Value to use as `this` when executing `listener`.
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* @return {boolean} `true` if style is loading.
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* @template T
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*/
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ol.renderer.vector.renderFeature = function(
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replayGroup, feature, style, squaredTolerance, data, listener, thisArg) {
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var loading = false;
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var imageStyle, imageState;
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imageStyle = style.getImage();
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if (goog.isNull(imageStyle)) {
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ol.renderer.vector.renderFeature_(
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replayGroup, feature, style, squaredTolerance, data);
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} else {
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imageState = imageStyle.getImageState();
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if (imageState == ol.style.ImageState.LOADED ||
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imageState == ol.style.ImageState.ERROR) {
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imageStyle.unlistenImageChange(listener, thisArg);
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if (imageState == ol.style.ImageState.LOADED) {
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ol.renderer.vector.renderFeature_(
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replayGroup, feature, style, squaredTolerance, data);
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}
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} else {
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if (imageState == ol.style.ImageState.IDLE) {
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imageStyle.load();
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}
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imageState = imageStyle.getImageState();
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goog.asserts.assert(imageState == ol.style.ImageState.LOADING);
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imageStyle.listenImageChange(listener, thisArg);
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loading = true;
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}
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}
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return loading;
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.Feature} feature Feature.
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* @param {ol.style.Style} style Style.
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* @param {number} squaredTolerance Squared tolerance.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderFeature_ = function(
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replayGroup, feature, style, squaredTolerance, data) {
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var geometry = feature.getGeometry();
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if (goog.isNull(geometry)) {
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return;
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}
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var simplifiedGeometry = geometry.getSimplifiedGeometry(squaredTolerance);
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var geometryRenderer =
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ol.renderer.vector.GEOMETRY_RENDERERS_[simplifiedGeometry.getType()];
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goog.asserts.assert(goog.isDef(geometryRenderer));
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geometryRenderer(replayGroup, simplifiedGeometry, style, data);
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderGeometryCollectionGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.GeometryCollection);
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var geometries = geometry.getGeometriesArray();
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var i, ii;
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for (i = 0, ii = geometries.length; i < ii; ++i) {
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var geometryRenderer =
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ol.renderer.vector.GEOMETRY_RENDERERS_[geometries[i].getType()];
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goog.asserts.assert(goog.isDef(geometryRenderer));
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geometryRenderer(replayGroup, geometries[i], style, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderLineStringGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.LineString);
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var strokeStyle = style.getStroke();
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if (!goog.isNull(strokeStyle)) {
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var lineStringReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.LINE_STRING);
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lineStringReplay.setFillStrokeStyle(null, strokeStyle);
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lineStringReplay.drawLineStringGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry.getFlatMidpoint(), 0, 2, 2, geometry, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderMultiLineStringGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.MultiLineString);
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var strokeStyle = style.getStroke();
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if (!goog.isNull(strokeStyle)) {
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var lineStringReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.LINE_STRING);
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lineStringReplay.setFillStrokeStyle(null, strokeStyle);
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lineStringReplay.drawMultiLineStringGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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var flatMidpointCoordinates = geometry.getFlatMidpoints();
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textReplay.drawText(flatMidpointCoordinates, 0,
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flatMidpointCoordinates.length, 2, geometry, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderMultiPolygonGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.MultiPolygon);
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var fillStyle = style.getFill();
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var strokeStyle = style.getStroke();
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if (!goog.isNull(strokeStyle) || !goog.isNull(fillStyle)) {
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var polygonReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.POLYGON);
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polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
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polygonReplay.drawMultiPolygonGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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var flatInteriorPointCoordinates = geometry.getFlatInteriorPoints();
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textReplay.drawText(flatInteriorPointCoordinates, 0,
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flatInteriorPointCoordinates.length, 2, geometry, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderPointGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.Point);
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var imageStyle = style.getImage();
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if (!goog.isNull(imageStyle)) {
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var imageReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.IMAGE);
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imageReplay.setImageStyle(imageStyle);
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imageReplay.drawPointGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry.getCoordinates(), 0, 2, 2, geometry, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderMultiPointGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.MultiPoint);
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var imageStyle = style.getImage();
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if (!goog.isNull(imageStyle)) {
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var imageReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.IMAGE);
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imageReplay.setImageStyle(imageStyle);
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imageReplay.drawMultiPointGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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var flatCoordinates = geometry.getFlatCoordinates();
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textReplay.drawText(flatCoordinates, 0, flatCoordinates.length,
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geometry.getStride(), geometry, data);
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}
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};
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/**
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* @param {ol.render.IReplayGroup} replayGroup Replay group.
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* @param {ol.geom.Geometry} geometry Geometry.
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* @param {ol.style.Style} style Style.
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* @param {Object} data Opaque data object.
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* @private
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*/
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ol.renderer.vector.renderPolygonGeometry_ =
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function(replayGroup, geometry, style, data) {
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goog.asserts.assertInstanceof(geometry, ol.geom.Polygon);
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var fillStyle = style.getFill();
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var strokeStyle = style.getStroke();
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if (!goog.isNull(fillStyle) || !goog.isNull(strokeStyle)) {
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var polygonReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.POLYGON);
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polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
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polygonReplay.drawPolygonGeometry(geometry, data);
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}
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var textStyle = style.getText();
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if (!goog.isNull(textStyle)) {
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var textReplay = replayGroup.getReplay(
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style.getZIndex(), ol.render.ReplayType.TEXT);
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(
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geometry.getFlatInteriorPoint(), 0, 2, 2, geometry, data);
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}
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};
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/**
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* @const
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* @private
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* @type {Object.<ol.geom.GeometryType,
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* function(ol.render.IReplayGroup, ol.geom.Geometry,
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* ol.style.Style, Object)>}
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*/
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ol.renderer.vector.GEOMETRY_RENDERERS_ = {
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'Point': ol.renderer.vector.renderPointGeometry_,
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'LineString': ol.renderer.vector.renderLineStringGeometry_,
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'Polygon': ol.renderer.vector.renderPolygonGeometry_,
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'MultiPoint': ol.renderer.vector.renderMultiPointGeometry_,
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'MultiLineString': ol.renderer.vector.renderMultiLineStringGeometry_,
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'MultiPolygon': ol.renderer.vector.renderMultiPolygonGeometry_,
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'GeometryCollection': ol.renderer.vector.renderGeometryCollectionGeometry_,
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'Circle': ol.renderer.vector.renderCircleGeometry_
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};
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