42 lines
944 B
JavaScript
42 lines
944 B
JavaScript
goog.provide('ol.ColorLike');
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goog.provide('ol.colorlike');
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goog.require('ol.color');
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/**
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* A type accepted by CanvasRenderingContext2D.fillStyle.
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* Represents a color, pattern, or gradient.
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*
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* @typedef {string|CanvasPattern|CanvasGradient}
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* @api
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*/
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ol.ColorLike;
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/**
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* @param {ol.Color|ol.ColorLike} color Color.
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* @return {ol.ColorLike} The color as an ol.ColorLike
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* @api
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*/
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ol.colorlike.asColorLike = function(color) {
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if (ol.colorlike.isColorLike(color)) {
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return /** @type {string|CanvasPattern|CanvasGradient} */ (color);
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} else {
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return ol.color.asString(/** @type {ol.Color} */ (color));
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}
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};
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/**
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* @param {?} color The value that is potentially an ol.ColorLike
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* @return {boolean} Whether the color is an ol.ColorLike
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*/
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ol.colorlike.isColorLike = function(color) {
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return (
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typeof color === 'string' ||
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color instanceof CanvasPattern ||
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color instanceof CanvasGradient
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);
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};
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