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Refactored code to take into account optimization suggestions (https://github.com/openseadragon/openseadragon/pull/2337#discussion_r1170931340)

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Ruven 2023-04-24 17:24:18 +02:00
parent 0c358c140d
commit 877c3b68ed
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1 changed files with 19 additions and 16 deletions
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35
src/iiiftilesource.js
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@ -354,24 +354,27 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
*/
getLevelSize: function( level ) {
var numLevels = this.maxLevel - this.minLevel;
// Need to take into account that the list may or may not include the full resolution size
if( this.sizes && ((this.sizes.length === numLevels) ||
(this.sizes.length === numLevels + 1)) ) {
var levelWidth, levelHeight;
if( this.sizes.length === numLevels ) {
levelWidth = (level === this.sizes.length) ? this.width : this.sizes[level].width;
levelHeight = (level === this.sizes.length) ? this.height : this.sizes[level].height;
}
else {
levelWidth = this.sizes[level].width;
levelHeight = this.sizes[level].height;
}
return { width: levelWidth, height: levelHeight };
}
else {
if (!this.sizes) {
return null;
}
var levelWidth, levelHeight;
var numLevels = this.maxLevel - this.minLevel;
var sizeLength = this.sizes.length;
// Need to take into account that the list may or may not include the full resolution size
if (sizeLength === numLevels) {
levelWidth = (level === sizeLength) ? this.width : this.sizes[level].width;
levelHeight = (level === sizeLength) ? this.height : this.sizes[level].height;
} else if ( sizeLength === numLevels + 1 ) {
levelWidth = this.sizes[level].width;
levelHeight = this.sizes[level].height;
} else {
// Sizes field doesn't contain resolution level sizes, so discard
return null;
}
return {width: levelWidth, height: levelHeight};
},