Manual class transform
This commit is contained in:
Tim Schaub
@@ -58,199 +58,196 @@ const MAX_ATLAS_SIZE = -1;
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* @api
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* @param {module:ol/style/AtlasManager~Options=} opt_options Options.
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*/
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const AtlasManager = function(opt_options) {
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class AtlasManager {
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constructor(opt_options) {
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const options = opt_options || {};
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const options = opt_options || {};
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/**
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* The size in pixels of the latest atlas image.
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* @private
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* @type {number}
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*/
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this.currentSize_ = options.initialSize !== undefined ?
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options.initialSize : INITIAL_ATLAS_SIZE;
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/**
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* The size in pixels of the latest atlas image.
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* @private
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* @type {number}
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*/
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this.currentSize_ = options.initialSize !== undefined ?
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options.initialSize : INITIAL_ATLAS_SIZE;
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/**
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* The maximum size in pixels of atlas images.
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* @private
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* @type {number}
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*/
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this.maxSize_ = options.maxSize !== undefined ?
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options.maxSize : MAX_ATLAS_SIZE != -1 ?
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MAX_ATLAS_SIZE : WEBGL_MAX_TEXTURE_SIZE !== undefined ?
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WEBGL_MAX_TEXTURE_SIZE : 2048;
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/**
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* The maximum size in pixels of atlas images.
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* @private
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* @type {number}
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*/
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this.maxSize_ = options.maxSize !== undefined ?
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options.maxSize : MAX_ATLAS_SIZE != -1 ?
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MAX_ATLAS_SIZE : WEBGL_MAX_TEXTURE_SIZE !== undefined ?
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WEBGL_MAX_TEXTURE_SIZE : 2048;
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/**
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* The size in pixels between images.
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* @private
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* @type {number}
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*/
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this.space_ = options.space !== undefined ? options.space : 1;
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/**
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* The size in pixels between images.
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* @private
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* @type {number}
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*/
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this.space_ = options.space !== undefined ? options.space : 1;
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/**
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* @private
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* @type {Array.<module:ol/style/Atlas>}
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*/
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this.atlases_ = [new Atlas(this.currentSize_, this.space_)];
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/**
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* @private
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* @type {Array.<module:ol/style/Atlas>}
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*/
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this.atlases_ = [new Atlas(this.currentSize_, this.space_)];
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/**
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* The size in pixels of the latest atlas image for hit-detection images.
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* @private
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* @type {number}
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*/
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this.currentHitSize_ = this.currentSize_;
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/**
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* The size in pixels of the latest atlas image for hit-detection images.
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* @private
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* @type {number}
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*/
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this.currentHitSize_ = this.currentSize_;
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/**
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* @private
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* @type {Array.<module:ol/style/Atlas>}
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*/
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this.hitAtlases_ = [new Atlas(this.currentHitSize_, this.space_)];
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};
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/**
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* @param {string} id The identifier of the entry to check.
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* @return {?module:ol/style/AtlasManager~AtlasManagerInfo} The position and atlas image for the
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* entry, or `null` if the entry is not part of the atlas manager.
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*/
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AtlasManager.prototype.getInfo = function(id) {
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/** @type {?module:ol/style/Atlas~AtlasInfo} */
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const info = this.getInfo_(this.atlases_, id);
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if (!info) {
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return null;
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/**
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* @private
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* @type {Array.<module:ol/style/Atlas>}
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*/
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this.hitAtlases_ = [new Atlas(this.currentHitSize_, this.space_)];
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}
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const hitInfo = /** @type {module:ol/style/Atlas~AtlasInfo} */ (this.getInfo_(this.hitAtlases_, id));
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return this.mergeInfos_(info, hitInfo);
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};
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/**
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* @param {string} id The identifier of the entry to check.
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* @return {?module:ol/style/AtlasManager~AtlasManagerInfo} The position and atlas image for the
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* entry, or `null` if the entry is not part of the atlas manager.
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*/
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getInfo(id) {
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/** @type {?module:ol/style/Atlas~AtlasInfo} */
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const info = this.getInfo_(this.atlases_, id);
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/**
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* @private
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* @param {Array.<module:ol/style/Atlas>} atlases The atlases to search.
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* @param {string} id The identifier of the entry to check.
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* @return {?module:ol/style/Atlas~AtlasInfo} The position and atlas image for the entry,
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* or `null` if the entry is not part of the atlases.
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*/
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AtlasManager.prototype.getInfo_ = function(atlases, id) {
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for (let i = 0, ii = atlases.length; i < ii; ++i) {
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const atlas = atlases[i];
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const info = atlas.get(id);
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if (info) {
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return info;
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if (!info) {
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return null;
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}
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}
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return null;
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};
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const hitInfo = /** @type {module:ol/style/Atlas~AtlasInfo} */ (this.getInfo_(this.hitAtlases_, id));
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/**
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* @private
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* @param {module:ol/style/Atlas~AtlasInfo} info The info for the real image.
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* @param {module:ol/style/Atlas~AtlasInfo} hitInfo The info for the hit-detection
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* image.
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* @return {?module:ol/style/AtlasManager~AtlasManagerInfo} The position and atlas image for the
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* entry, or `null` if the entry is not part of the atlases.
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*/
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AtlasManager.prototype.mergeInfos_ = function(info, hitInfo) {
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return (
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/** @type {module:ol/style/AtlasManager~AtlasManagerInfo} */ ({
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offsetX: info.offsetX,
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offsetY: info.offsetY,
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image: info.image,
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hitImage: hitInfo.image
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})
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);
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};
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/**
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* Add an image to the atlas manager.
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*
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* If an entry for the given id already exists, the entry will
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* be overridden (but the space on the atlas graphic will not be freed).
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*
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* If `renderHitCallback` is provided, the image (or the hit-detection version
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* of the image) will be rendered into a separate hit-detection atlas image.
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*
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* @param {string} id The identifier of the entry to add.
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* @param {number} width The width.
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* @param {number} height The height.
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* @param {function(CanvasRenderingContext2D, number, number)} renderCallback
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* Called to render the new image onto an atlas image.
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* @param {function(CanvasRenderingContext2D, number, number)=}
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* opt_renderHitCallback Called to render a hit-detection image onto a hit
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* detection atlas image.
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* @param {Object=} opt_this Value to use as `this` when executing
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* `renderCallback` and `renderHitCallback`.
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* @return {?module:ol/style/AtlasManager~AtlasManagerInfo} The position and atlas image for the
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* entry, or `null` if the image is too big.
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*/
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AtlasManager.prototype.add = function(id, width, height,
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renderCallback, opt_renderHitCallback, opt_this) {
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if (width + this.space_ > this.maxSize_ ||
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height + this.space_ > this.maxSize_) {
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return null;
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return this.mergeInfos_(info, hitInfo);
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}
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/** @type {?module:ol/style/Atlas~AtlasInfo} */
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const info = this.add_(false, id, width, height, renderCallback, opt_this);
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if (!info) {
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return null;
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}
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// even if no hit-detection entry is requested, we insert a fake entry into
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// the hit-detection atlas, to make sure that the offset is the same for
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// the original image and the hit-detection image.
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const renderHitCallback = opt_renderHitCallback !== undefined ?
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opt_renderHitCallback : UNDEFINED;
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const hitInfo = /** @type {module:ol/style/Atlas~AtlasInfo} */ (this.add_(true,
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id, width, height, renderHitCallback, opt_this));
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return this.mergeInfos_(info, hitInfo);
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};
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/**
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* @private
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* @param {boolean} isHitAtlas If the hit-detection atlases are used.
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* @param {string} id The identifier of the entry to add.
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* @param {number} width The width.
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* @param {number} height The height.
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* @param {function(CanvasRenderingContext2D, number, number)} renderCallback
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* Called to render the new image onto an atlas image.
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* @param {Object=} opt_this Value to use as `this` when executing
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* `renderCallback` and `renderHitCallback`.
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* @return {?module:ol/style/Atlas~AtlasInfo} The position and atlas image for the entry,
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* or `null` if the image is too big.
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*/
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AtlasManager.prototype.add_ = function(isHitAtlas, id, width, height, renderCallback, opt_this) {
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const atlases = (isHitAtlas) ? this.hitAtlases_ : this.atlases_;
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let atlas, info, i, ii;
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for (i = 0, ii = atlases.length; i < ii; ++i) {
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atlas = atlases[i];
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info = atlas.add(id, width, height, renderCallback, opt_this);
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if (info) {
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return info;
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} else if (!info && i === ii - 1) {
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// the entry could not be added to one of the existing atlases,
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// create a new atlas that is twice as big and try to add to this one.
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let size;
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if (isHitAtlas) {
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size = Math.min(this.currentHitSize_ * 2, this.maxSize_);
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this.currentHitSize_ = size;
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} else {
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size = Math.min(this.currentSize_ * 2, this.maxSize_);
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this.currentSize_ = size;
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/**
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* @private
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* @param {Array.<module:ol/style/Atlas>} atlases The atlases to search.
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* @param {string} id The identifier of the entry to check.
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* @return {?module:ol/style/Atlas~AtlasInfo} The position and atlas image for the entry,
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* or `null` if the entry is not part of the atlases.
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*/
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getInfo_(atlases, id) {
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for (let i = 0, ii = atlases.length; i < ii; ++i) {
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const atlas = atlases[i];
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const info = atlas.get(id);
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if (info) {
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return info;
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}
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atlas = new Atlas(size, this.space_);
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atlases.push(atlas);
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// run the loop another time
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++ii;
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}
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return null;
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}
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return null;
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};
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/**
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* @private
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* @param {module:ol/style/Atlas~AtlasInfo} info The info for the real image.
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* @param {module:ol/style/Atlas~AtlasInfo} hitInfo The info for the hit-detection
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* image.
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* @return {?module:ol/style/AtlasManager~AtlasManagerInfo} The position and atlas image for the
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* entry, or `null` if the entry is not part of the atlases.
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*/
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mergeInfos_(info, hitInfo) {
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return (
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/** @type {module:ol/style/AtlasManager~AtlasManagerInfo} */ ({
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offsetX: info.offsetX,
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offsetY: info.offsetY,
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image: info.image,
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hitImage: hitInfo.image
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})
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);
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}
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/**
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* Add an image to the atlas manager.
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*
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* If an entry for the given id already exists, the entry will
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* be overridden (but the space on the atlas graphic will not be freed).
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*
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* If `renderHitCallback` is provided, the image (or the hit-detection version
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* of the image) will be rendered into a separate hit-detection atlas image.
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*
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* @param {string} id The identifier of the entry to add.
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* @param {number} width The width.
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* @param {number} height The height.
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* @param {function(CanvasRenderingContext2D, number, number)} renderCallback
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* Called to render the new image onto an atlas image.
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* @param {function(CanvasRenderingContext2D, number, number)=}
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* opt_renderHitCallback Called to render a hit-detection image onto a hit
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* detection atlas image.
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* @param {Object=} opt_this Value to use as `this` when executing
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* `renderCallback` and `renderHitCallback`.
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* @return {?module:ol/style/AtlasManager~AtlasManagerInfo} The position and atlas image for the
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* entry, or `null` if the image is too big.
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*/
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add(id, width, height, renderCallback, opt_renderHitCallback, opt_this) {
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if (width + this.space_ > this.maxSize_ ||
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height + this.space_ > this.maxSize_) {
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return null;
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}
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/** @type {?module:ol/style/Atlas~AtlasInfo} */
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const info = this.add_(false, id, width, height, renderCallback, opt_this);
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if (!info) {
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return null;
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}
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// even if no hit-detection entry is requested, we insert a fake entry into
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// the hit-detection atlas, to make sure that the offset is the same for
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// the original image and the hit-detection image.
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const renderHitCallback = opt_renderHitCallback !== undefined ?
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opt_renderHitCallback : UNDEFINED;
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const hitInfo = /** @type {module:ol/style/Atlas~AtlasInfo} */ (this.add_(true,
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id, width, height, renderHitCallback, opt_this));
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return this.mergeInfos_(info, hitInfo);
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}
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/**
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* @private
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* @param {boolean} isHitAtlas If the hit-detection atlases are used.
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* @param {string} id The identifier of the entry to add.
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* @param {number} width The width.
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* @param {number} height The height.
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* @param {function(CanvasRenderingContext2D, number, number)} renderCallback
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* Called to render the new image onto an atlas image.
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* @param {Object=} opt_this Value to use as `this` when executing
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* `renderCallback` and `renderHitCallback`.
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* @return {?module:ol/style/Atlas~AtlasInfo} The position and atlas image for the entry,
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* or `null` if the image is too big.
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*/
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add_(isHitAtlas, id, width, height, renderCallback, opt_this) {
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const atlases = (isHitAtlas) ? this.hitAtlases_ : this.atlases_;
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let atlas, info, i, ii;
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for (i = 0, ii = atlases.length; i < ii; ++i) {
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atlas = atlases[i];
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info = atlas.add(id, width, height, renderCallback, opt_this);
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if (info) {
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return info;
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} else if (!info && i === ii - 1) {
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// the entry could not be added to one of the existing atlases,
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// create a new atlas that is twice as big and try to add to this one.
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let size;
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if (isHitAtlas) {
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size = Math.min(this.currentHitSize_ * 2, this.maxSize_);
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this.currentHitSize_ = size;
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} else {
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size = Math.min(this.currentSize_ * 2, this.maxSize_);
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this.currentSize_ = size;
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}
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atlas = new Atlas(size, this.space_);
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atlases.push(atlas);
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// run the loop another time
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++ii;
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}
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}
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return null;
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}
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}
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export default AtlasManager;
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