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reusing images in ol.style.Icon#clone

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This commit is contained in:
simonseyock
2017-09-08 14:11:04 +02:00
parent b03bb2c2ce
commit f73cda8ef5
2 changed files with 9 additions and 27 deletions
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19
src/ol/style/icon.js
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@@ -176,24 +176,11 @@ ol.inherits(ol.style.Icon, ol.style.Image);
/**
* Clones the style.
* Clones the style. The underlying Image/HTMLCanvasElement is not cloned.
* @return {ol.style.Icon} The cloned style.
* @api
*/
ol.style.Icon.prototype.clone = function() {
var oldImage = this.getImage(1);
var newImage;
if (this.iconImage_.getImageState() === ol.ImageState.LOADED) {
if (oldImage.tagName.toUpperCase() === 'IMG') {
newImage = /** @type {Image} */ (oldImage.cloneNode(true));
} else {
newImage = /** @type {HTMLCanvasElement} */ (document.createElement('canvas'));
var context = newImage.getContext('2d');
newImage.width = oldImage.width;
newImage.height = oldImage.height;
context.drawImage(oldImage, 0, 0);
}
}
return new ol.style.Icon({
anchor: this.anchor_.slice(),
anchorOrigin: this.anchorOrigin_,
@@ -201,9 +188,7 @@ ol.style.Icon.prototype.clone = function() {
anchorYUnits: this.anchorYUnits_,
crossOrigin: this.crossOrigin_,
color: (this.color_ && this.color_.slice) ? this.color_.slice() : this.color_ || undefined,
img: newImage ? newImage : undefined,
imgSize: newImage ? this.iconImage_.getSize().slice() : undefined,
src: newImage ? undefined : this.getSrc(),
src: this.getSrc(),
offset: this.offset_.slice(),
offsetOrigin: this.offsetOrigin_,
size: this.size_ !== null ? this.size_.slice() : undefined,