164 lines
4.0 KiB
JavaScript
164 lines
4.0 KiB
JavaScript
goog.provide('ol.style.Icon');
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goog.provide('ol.style.IconLiteral');
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goog.provide('ol.style.IconType');
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goog.require('goog.asserts');
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goog.require('ol.expr');
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goog.require('ol.expr.Expression');
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goog.require('ol.expr.Literal');
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goog.require('ol.style.Point');
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goog.require('ol.style.PointLiteral');
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/**
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* @typedef {{url: (string),
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* width: (number|undefined),
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* height: (number|undefined),
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* opacity: (number),
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* rotation: (number)}}
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*/
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ol.style.IconLiteralOptions;
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/**
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* @constructor
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* @extends {ol.style.PointLiteral}
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* @param {ol.style.IconLiteralOptions} options Icon literal options.
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*/
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ol.style.IconLiteral = function(options) {
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/** @type {string} */
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this.url = options.url;
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/** @type {number|undefined} */
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this.width = options.width;
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/** @type {number|undefined} */
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this.height = options.height;
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/** @type {number} */
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this.opacity = options.opacity;
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/** @type {number} */
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this.rotation = options.rotation;
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};
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goog.inherits(ol.style.IconLiteral, ol.style.PointLiteral);
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/**
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* @inheritDoc
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*/
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ol.style.IconLiteral.prototype.equals = function(iconLiteral) {
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return this.url == iconLiteral.type &&
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this.width == iconLiteral.width &&
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this.height == iconLiteral.height &&
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this.opacity == iconLiteral.opacity &&
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this.rotation == iconLiteral.rotation;
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};
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/**
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* @constructor
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* @extends {ol.style.Point}
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* @param {ol.style.IconOptions} options Icon options.
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*/
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ol.style.Icon = function(options) {
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goog.asserts.assert(options.url, 'url must be set');
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/**
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* @type {ol.expr.Expression}
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* @private
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*/
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this.url_ = (options.url instanceof ol.expr.Expression) ?
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options.url : new ol.expr.Literal(options.url);
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/**
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* @type {ol.expr.Expression}
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* @private
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*/
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this.width_ = !goog.isDef(options.width) ?
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null :
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(options.width instanceof ol.expr.Expression) ?
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options.width : new ol.expr.Literal(options.width);
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/**
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* @type {ol.expr.Expression}
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* @private
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*/
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this.height_ = !goog.isDef(options.height) ?
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null :
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(options.height instanceof ol.expr.Expression) ?
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options.height : new ol.expr.Literal(options.height);
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/**
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* @type {ol.expr.Expression}
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* @private
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*/
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this.opacity_ = !goog.isDef(options.opacity) ?
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new ol.expr.Literal(ol.style.IconDefaults.opacity) :
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(options.opacity instanceof ol.expr.Expression) ?
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options.opacity : new ol.expr.Literal(options.opacity);
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/**
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* @type {ol.expr.Expression}
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* @private
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*/
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this.rotation_ = !goog.isDef(options.rotation) ?
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new ol.expr.Literal(ol.style.IconDefaults.rotation) :
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(options.rotation instanceof ol.expr.Expression) ?
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options.rotation : new ol.expr.Literal(options.rotation);
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};
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/**
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* @inheritDoc
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* @return {ol.style.IconLiteral} Literal shape symbolizer.
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*/
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ol.style.Icon.prototype.createLiteral = function(opt_feature) {
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var url = ol.expr.evaluateFeature(this.url_, opt_feature);
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goog.asserts.assertString(url, 'url must be a string');
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goog.asserts.assert(url != '#', 'url must not be "#"');
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var width;
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if (!goog.isNull(this.width_)) {
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width = ol.expr.evaluateFeature(this.width_, opt_feature);
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goog.asserts.assertNumber(width, 'width must be a number');
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}
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var height;
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if (!goog.isNull(this.height_)) {
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height = ol.expr.evaluateFeature(this.height_, opt_feature);
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goog.asserts.assertNumber(height, 'height must be a number');
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}
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var opacity = ol.expr.evaluateFeature(this.opacity_, opt_feature);
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goog.asserts.assertNumber(opacity, 'opacity must be a number');
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var rotation = ol.expr.evaluateFeature(this.rotation_, opt_feature);
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goog.asserts.assertNumber(rotation, 'rotation must be a number');
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return new ol.style.IconLiteral({
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url: url,
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width: width,
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height: height,
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opacity: opacity,
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rotation: rotation
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});
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};
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/**
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* @type {ol.style.IconLiteral}
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*/
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ol.style.IconDefaults = new ol.style.IconLiteral({
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url: '#',
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opacity: 1,
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rotation: 0
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});
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