Automated class transform
npx lebab --replace src --transform class
This commit is contained in:
Tim Schaub
@@ -20,44 +20,172 @@ import {create as createTransform, compose as composeTransform} from '../../tran
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* @param {module:ol/layer/Image|module:ol/layer/Vector} imageLayer Image or vector layer.
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* @api
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*/
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const CanvasImageLayerRenderer = function(imageLayer) {
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class CanvasImageLayerRenderer {
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constructor(imageLayer) {
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IntermediateCanvasRenderer.call(this, imageLayer);
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IntermediateCanvasRenderer.call(this, imageLayer);
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/**
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* @private
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* @type {?module:ol/ImageBase}
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*/
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this.image_ = null;
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/**
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* @private
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* @type {?module:ol/ImageBase}
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*/
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this.image_ = null;
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/**
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* @private
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* @type {module:ol/transform~Transform}
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*/
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this.imageTransform_ = createTransform();
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/**
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* @private
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* @type {module:ol/transform~Transform}
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*/
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this.imageTransform_ = createTransform();
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/**
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* @type {!Array.<string>}
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*/
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this.skippedFeatures_ = [];
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/**
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* @type {!Array.<string>}
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*/
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this.skippedFeatures_ = [];
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/**
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* @private
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* @type {module:ol/renderer/canvas/VectorLayer}
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*/
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this.vectorRenderer_ = null;
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/**
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* @private
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* @type {module:ol/renderer/canvas/VectorLayer}
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*/
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this.vectorRenderer_ = null;
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if (imageLayer.getType() === LayerType.VECTOR) {
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for (let i = 0, ii = layerRendererConstructors.length; i < ii; ++i) {
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const ctor = layerRendererConstructors[i];
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if (ctor !== CanvasImageLayerRenderer && ctor['handles'](imageLayer)) {
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this.vectorRenderer_ = new ctor(imageLayer);
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break;
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if (imageLayer.getType() === LayerType.VECTOR) {
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for (let i = 0, ii = layerRendererConstructors.length; i < ii; ++i) {
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const ctor = layerRendererConstructors[i];
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if (ctor !== CanvasImageLayerRenderer && ctor['handles'](imageLayer)) {
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this.vectorRenderer_ = new ctor(imageLayer);
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break;
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}
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}
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}
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}
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};
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/**
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* @inheritDoc
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*/
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disposeInternal() {
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if (this.vectorRenderer_) {
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this.vectorRenderer_.dispose();
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}
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IntermediateCanvasRenderer.prototype.disposeInternal.call(this);
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}
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/**
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* @inheritDoc
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*/
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getImage() {
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return !this.image_ ? null : this.image_.getImage();
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}
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/**
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* @inheritDoc
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*/
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getImageTransform() {
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return this.imageTransform_;
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}
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/**
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* @inheritDoc
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*/
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prepareFrame(frameState, layerState) {
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const pixelRatio = frameState.pixelRatio;
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const size = frameState.size;
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const viewState = frameState.viewState;
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const viewCenter = viewState.center;
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const viewResolution = viewState.resolution;
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let image;
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const imageLayer = /** @type {module:ol/layer/Image} */ (this.getLayer());
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const imageSource = imageLayer.getSource();
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const hints = frameState.viewHints;
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const vectorRenderer = this.vectorRenderer_;
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let renderedExtent = frameState.extent;
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if (!vectorRenderer && layerState.extent !== undefined) {
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renderedExtent = getIntersection(renderedExtent, layerState.extent);
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}
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if (!hints[ViewHint.ANIMATING] && !hints[ViewHint.INTERACTING] &&
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!isEmpty(renderedExtent)) {
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let projection = viewState.projection;
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if (!ENABLE_RASTER_REPROJECTION) {
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const sourceProjection = imageSource.getProjection();
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if (sourceProjection) {
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projection = sourceProjection;
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}
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}
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let skippedFeatures = this.skippedFeatures_;
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if (vectorRenderer) {
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const context = vectorRenderer.context;
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const imageFrameState = /** @type {module:ol/PluggableMap~FrameState} */ (assign({}, frameState, {
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size: [
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getWidth(renderedExtent) / viewResolution,
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getHeight(renderedExtent) / viewResolution
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],
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viewState: /** @type {module:ol/View~State} */ (assign({}, frameState.viewState, {
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rotation: 0
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}))
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}));
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const newSkippedFeatures = Object.keys(imageFrameState.skippedFeatureUids).sort();
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image = new ImageCanvas(renderedExtent, viewResolution, pixelRatio, context.canvas, function(callback) {
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if (vectorRenderer.prepareFrame(imageFrameState, layerState) &&
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(vectorRenderer.replayGroupChanged ||
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!equals(skippedFeatures, newSkippedFeatures))) {
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context.canvas.width = imageFrameState.size[0] * pixelRatio;
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context.canvas.height = imageFrameState.size[1] * pixelRatio;
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vectorRenderer.compose(context, imageFrameState, layerState);
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skippedFeatures = newSkippedFeatures;
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callback();
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}
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});
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} else {
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image = imageSource.getImage(
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renderedExtent, viewResolution, pixelRatio, projection);
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}
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if (image && this.loadImage(image)) {
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this.image_ = image;
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this.skippedFeatures_ = skippedFeatures;
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}
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}
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if (this.image_) {
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image = this.image_;
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const imageExtent = image.getExtent();
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const imageResolution = image.getResolution();
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const imagePixelRatio = image.getPixelRatio();
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const scale = pixelRatio * imageResolution /
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(viewResolution * imagePixelRatio);
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const transform = composeTransform(this.imageTransform_,
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pixelRatio * size[0] / 2, pixelRatio * size[1] / 2,
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scale, scale,
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0,
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imagePixelRatio * (imageExtent[0] - viewCenter[0]) / imageResolution,
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imagePixelRatio * (viewCenter[1] - imageExtent[3]) / imageResolution);
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composeTransform(this.coordinateToCanvasPixelTransform,
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pixelRatio * size[0] / 2 - transform[4], pixelRatio * size[1] / 2 - transform[5],
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pixelRatio / viewResolution, -pixelRatio / viewResolution,
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0,
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-viewCenter[0], -viewCenter[1]);
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this.renderedResolution = imageResolution * pixelRatio / imagePixelRatio;
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}
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return !!this.image_;
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}
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/**
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* @inheritDoc
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*/
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forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
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if (this.vectorRenderer_) {
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return this.vectorRenderer_.forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg);
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} else {
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return IntermediateCanvasRenderer.prototype.forEachFeatureAtCoordinate.call(this, coordinate, frameState, hitTolerance, callback, thisArg);
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}
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}
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}
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inherits(CanvasImageLayerRenderer, IntermediateCanvasRenderer);
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@@ -85,135 +213,4 @@ CanvasImageLayerRenderer['create'] = function(mapRenderer, layer) {
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};
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/**
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* @inheritDoc
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*/
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CanvasImageLayerRenderer.prototype.disposeInternal = function() {
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if (this.vectorRenderer_) {
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this.vectorRenderer_.dispose();
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}
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IntermediateCanvasRenderer.prototype.disposeInternal.call(this);
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};
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/**
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* @inheritDoc
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*/
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CanvasImageLayerRenderer.prototype.getImage = function() {
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return !this.image_ ? null : this.image_.getImage();
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};
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/**
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* @inheritDoc
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*/
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CanvasImageLayerRenderer.prototype.getImageTransform = function() {
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return this.imageTransform_;
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};
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/**
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* @inheritDoc
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*/
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CanvasImageLayerRenderer.prototype.prepareFrame = function(frameState, layerState) {
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const pixelRatio = frameState.pixelRatio;
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const size = frameState.size;
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const viewState = frameState.viewState;
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const viewCenter = viewState.center;
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const viewResolution = viewState.resolution;
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let image;
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const imageLayer = /** @type {module:ol/layer/Image} */ (this.getLayer());
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const imageSource = imageLayer.getSource();
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const hints = frameState.viewHints;
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const vectorRenderer = this.vectorRenderer_;
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let renderedExtent = frameState.extent;
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if (!vectorRenderer && layerState.extent !== undefined) {
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renderedExtent = getIntersection(renderedExtent, layerState.extent);
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}
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if (!hints[ViewHint.ANIMATING] && !hints[ViewHint.INTERACTING] &&
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!isEmpty(renderedExtent)) {
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let projection = viewState.projection;
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if (!ENABLE_RASTER_REPROJECTION) {
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const sourceProjection = imageSource.getProjection();
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if (sourceProjection) {
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projection = sourceProjection;
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}
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}
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let skippedFeatures = this.skippedFeatures_;
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if (vectorRenderer) {
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const context = vectorRenderer.context;
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const imageFrameState = /** @type {module:ol/PluggableMap~FrameState} */ (assign({}, frameState, {
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size: [
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getWidth(renderedExtent) / viewResolution,
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getHeight(renderedExtent) / viewResolution
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],
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viewState: /** @type {module:ol/View~State} */ (assign({}, frameState.viewState, {
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rotation: 0
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}))
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}));
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const newSkippedFeatures = Object.keys(imageFrameState.skippedFeatureUids).sort();
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image = new ImageCanvas(renderedExtent, viewResolution, pixelRatio, context.canvas, function(callback) {
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if (vectorRenderer.prepareFrame(imageFrameState, layerState) &&
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(vectorRenderer.replayGroupChanged ||
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!equals(skippedFeatures, newSkippedFeatures))) {
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context.canvas.width = imageFrameState.size[0] * pixelRatio;
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context.canvas.height = imageFrameState.size[1] * pixelRatio;
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vectorRenderer.compose(context, imageFrameState, layerState);
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skippedFeatures = newSkippedFeatures;
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callback();
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}
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});
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} else {
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image = imageSource.getImage(
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renderedExtent, viewResolution, pixelRatio, projection);
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}
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if (image && this.loadImage(image)) {
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this.image_ = image;
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this.skippedFeatures_ = skippedFeatures;
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}
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}
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if (this.image_) {
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image = this.image_;
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const imageExtent = image.getExtent();
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const imageResolution = image.getResolution();
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const imagePixelRatio = image.getPixelRatio();
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const scale = pixelRatio * imageResolution /
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(viewResolution * imagePixelRatio);
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const transform = composeTransform(this.imageTransform_,
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pixelRatio * size[0] / 2, pixelRatio * size[1] / 2,
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scale, scale,
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0,
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imagePixelRatio * (imageExtent[0] - viewCenter[0]) / imageResolution,
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imagePixelRatio * (viewCenter[1] - imageExtent[3]) / imageResolution);
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composeTransform(this.coordinateToCanvasPixelTransform,
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pixelRatio * size[0] / 2 - transform[4], pixelRatio * size[1] / 2 - transform[5],
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pixelRatio / viewResolution, -pixelRatio / viewResolution,
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0,
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-viewCenter[0], -viewCenter[1]);
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this.renderedResolution = imageResolution * pixelRatio / imagePixelRatio;
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}
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return !!this.image_;
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};
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/**
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* @inheritDoc
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*/
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CanvasImageLayerRenderer.prototype.forEachFeatureAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
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if (this.vectorRenderer_) {
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return this.vectorRenderer_.forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg);
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} else {
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return IntermediateCanvasRenderer.prototype.forEachFeatureAtCoordinate.call(this, coordinate, frameState, hitTolerance, callback, thisArg);
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}
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};
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export default CanvasImageLayerRenderer;
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@@ -15,137 +15,135 @@ import {create as createTransform, apply as applyTransform} from '../../transfor
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* @extends {module:ol/renderer/canvas/Layer}
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* @param {module:ol/layer/Layer} layer Layer.
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*/
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const IntermediateCanvasRenderer = function(layer) {
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class IntermediateCanvasRenderer {
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constructor(layer) {
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CanvasLayerRenderer.call(this, layer);
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CanvasLayerRenderer.call(this, layer);
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/**
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* @protected
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* @type {module:ol/transform~Transform}
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*/
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this.coordinateToCanvasPixelTransform = createTransform();
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/**
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* @private
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* @type {CanvasRenderingContext2D}
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*/
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this.hitCanvasContext_ = null;
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}
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/**
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* @protected
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* @type {module:ol/transform~Transform}
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* @inheritDoc
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*/
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this.coordinateToCanvasPixelTransform = createTransform();
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composeFrame(frameState, layerState, context) {
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this.preCompose(context, frameState);
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const image = this.getImage();
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if (image) {
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// clipped rendering if layer extent is set
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const extent = layerState.extent;
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const clipped = extent !== undefined &&
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!containsExtent(extent, frameState.extent) &&
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intersects(extent, frameState.extent);
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if (clipped) {
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this.clip(context, frameState, /** @type {module:ol/extent~Extent} */ (extent));
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}
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const imageTransform = this.getImageTransform();
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// for performance reasons, context.save / context.restore is not used
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// to save and restore the transformation matrix and the opacity.
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// see http://jsperf.com/context-save-restore-versus-variable
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const alpha = context.globalAlpha;
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context.globalAlpha = layerState.opacity;
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// for performance reasons, context.setTransform is only used
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// when the view is rotated. see http://jsperf.com/canvas-transform
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const dx = imageTransform[4];
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const dy = imageTransform[5];
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const dw = image.width * imageTransform[0];
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const dh = image.height * imageTransform[3];
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context.drawImage(image, 0, 0, +image.width, +image.height,
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Math.round(dx), Math.round(dy), Math.round(dw), Math.round(dh));
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context.globalAlpha = alpha;
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if (clipped) {
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context.restore();
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}
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}
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this.postCompose(context, frameState, layerState);
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}
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/**
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* @private
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* @type {CanvasRenderingContext2D}
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* @abstract
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* @return {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} Canvas.
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*/
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this.hitCanvasContext_ = null;
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getImage() {}
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};
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/**
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* @abstract
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* @return {!module:ol/transform~Transform} Image transform.
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*/
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getImageTransform() {}
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/**
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* @inheritDoc
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*/
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forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
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const layer = this.getLayer();
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const source = layer.getSource();
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const resolution = frameState.viewState.resolution;
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const rotation = frameState.viewState.rotation;
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const skippedFeatureUids = frameState.skippedFeatureUids;
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return source.forEachFeatureAtCoordinate(
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coordinate, resolution, rotation, hitTolerance, skippedFeatureUids,
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/**
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* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
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* @return {?} Callback result.
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*/
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function(feature) {
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return callback.call(thisArg, feature, layer);
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});
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}
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/**
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* @inheritDoc
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*/
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forEachLayerAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
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if (!this.getImage()) {
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return undefined;
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}
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if (this.getLayer().getSource().forEachFeatureAtCoordinate !== UNDEFINED) {
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// for ImageCanvas sources use the original hit-detection logic,
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// so that for example also transparent polygons are detected
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return CanvasLayerRenderer.prototype.forEachLayerAtCoordinate.apply(this, arguments);
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} else {
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const pixel = applyTransform(this.coordinateToCanvasPixelTransform, coordinate.slice());
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scaleCoordinate(pixel, frameState.viewState.resolution / this.renderedResolution);
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if (!this.hitCanvasContext_) {
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this.hitCanvasContext_ = createCanvasContext2D(1, 1);
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}
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this.hitCanvasContext_.clearRect(0, 0, 1, 1);
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this.hitCanvasContext_.drawImage(this.getImage(), pixel[0], pixel[1], 1, 1, 0, 0, 1, 1);
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const imageData = this.hitCanvasContext_.getImageData(0, 0, 1, 1).data;
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if (imageData[3] > 0) {
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return callback.call(thisArg, this.getLayer(), imageData);
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} else {
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return undefined;
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}
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}
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}
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}
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inherits(IntermediateCanvasRenderer, CanvasLayerRenderer);
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/**
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* @inheritDoc
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*/
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IntermediateCanvasRenderer.prototype.composeFrame = function(frameState, layerState, context) {
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this.preCompose(context, frameState);
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const image = this.getImage();
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if (image) {
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// clipped rendering if layer extent is set
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const extent = layerState.extent;
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const clipped = extent !== undefined &&
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!containsExtent(extent, frameState.extent) &&
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intersects(extent, frameState.extent);
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if (clipped) {
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this.clip(context, frameState, /** @type {module:ol/extent~Extent} */ (extent));
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}
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||||
const imageTransform = this.getImageTransform();
|
||||
// for performance reasons, context.save / context.restore is not used
|
||||
// to save and restore the transformation matrix and the opacity.
|
||||
// see http://jsperf.com/context-save-restore-versus-variable
|
||||
const alpha = context.globalAlpha;
|
||||
context.globalAlpha = layerState.opacity;
|
||||
|
||||
// for performance reasons, context.setTransform is only used
|
||||
// when the view is rotated. see http://jsperf.com/canvas-transform
|
||||
const dx = imageTransform[4];
|
||||
const dy = imageTransform[5];
|
||||
const dw = image.width * imageTransform[0];
|
||||
const dh = image.height * imageTransform[3];
|
||||
context.drawImage(image, 0, 0, +image.width, +image.height,
|
||||
Math.round(dx), Math.round(dy), Math.round(dw), Math.round(dh));
|
||||
context.globalAlpha = alpha;
|
||||
|
||||
if (clipped) {
|
||||
context.restore();
|
||||
}
|
||||
}
|
||||
|
||||
this.postCompose(context, frameState, layerState);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @return {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} Canvas.
|
||||
*/
|
||||
IntermediateCanvasRenderer.prototype.getImage = function() {};
|
||||
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @return {!module:ol/transform~Transform} Image transform.
|
||||
*/
|
||||
IntermediateCanvasRenderer.prototype.getImageTransform = function() {};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
IntermediateCanvasRenderer.prototype.forEachFeatureAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
const layer = this.getLayer();
|
||||
const source = layer.getSource();
|
||||
const resolution = frameState.viewState.resolution;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const skippedFeatureUids = frameState.skippedFeatureUids;
|
||||
return source.forEachFeatureAtCoordinate(
|
||||
coordinate, resolution, rotation, hitTolerance, skippedFeatureUids,
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @return {?} Callback result.
|
||||
*/
|
||||
function(feature) {
|
||||
return callback.call(thisArg, feature, layer);
|
||||
});
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
IntermediateCanvasRenderer.prototype.forEachLayerAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
if (!this.getImage()) {
|
||||
return undefined;
|
||||
}
|
||||
|
||||
if (this.getLayer().getSource().forEachFeatureAtCoordinate !== UNDEFINED) {
|
||||
// for ImageCanvas sources use the original hit-detection logic,
|
||||
// so that for example also transparent polygons are detected
|
||||
return CanvasLayerRenderer.prototype.forEachLayerAtCoordinate.apply(this, arguments);
|
||||
} else {
|
||||
const pixel = applyTransform(this.coordinateToCanvasPixelTransform, coordinate.slice());
|
||||
scaleCoordinate(pixel, frameState.viewState.resolution / this.renderedResolution);
|
||||
|
||||
if (!this.hitCanvasContext_) {
|
||||
this.hitCanvasContext_ = createCanvasContext2D(1, 1);
|
||||
}
|
||||
|
||||
this.hitCanvasContext_.clearRect(0, 0, 1, 1);
|
||||
this.hitCanvasContext_.drawImage(this.getImage(), pixel[0], pixel[1], 1, 1, 0, 0, 1, 1);
|
||||
|
||||
const imageData = this.hitCanvasContext_.getImageData(0, 0, 1, 1).data;
|
||||
if (imageData[3] > 0) {
|
||||
return callback.call(thisArg, this.getLayer(), imageData);
|
||||
} else {
|
||||
return undefined;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
export default IntermediateCanvasRenderer;
|
||||
|
||||
+153
-157
@@ -17,175 +17,171 @@ import {create as createTransform, apply as applyTransform, compose as composeTr
|
||||
* @extends {module:ol/renderer/Layer}
|
||||
* @param {module:ol/layer/Layer} layer Layer.
|
||||
*/
|
||||
const CanvasLayerRenderer = function(layer) {
|
||||
class CanvasLayerRenderer {
|
||||
constructor(layer) {
|
||||
|
||||
LayerRenderer.call(this, layer);
|
||||
LayerRenderer.call(this, layer);
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedResolution;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
*/
|
||||
this.transform_ = createTransform();
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/extent~Extent} extent Clip extent.
|
||||
* @protected
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedResolution;
|
||||
clip(context, frameState, extent) {
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const width = frameState.size[0] * pixelRatio;
|
||||
const height = frameState.size[1] * pixelRatio;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const topLeft = getTopLeft(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
const topRight = getTopRight(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
const bottomRight = getBottomRight(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
const bottomLeft = getBottomLeft(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
|
||||
applyTransform(frameState.coordinateToPixelTransform, topLeft);
|
||||
applyTransform(frameState.coordinateToPixelTransform, topRight);
|
||||
applyTransform(frameState.coordinateToPixelTransform, bottomRight);
|
||||
applyTransform(frameState.coordinateToPixelTransform, bottomLeft);
|
||||
|
||||
context.save();
|
||||
rotateAtOffset(context, -rotation, width / 2, height / 2);
|
||||
context.beginPath();
|
||||
context.moveTo(topLeft[0] * pixelRatio, topLeft[1] * pixelRatio);
|
||||
context.lineTo(topRight[0] * pixelRatio, topRight[1] * pixelRatio);
|
||||
context.lineTo(bottomRight[0] * pixelRatio, bottomRight[1] * pixelRatio);
|
||||
context.lineTo(bottomLeft[0] * pixelRatio, bottomLeft[1] * pixelRatio);
|
||||
context.clip();
|
||||
rotateAtOffset(context, rotation, width / 2, height / 2);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/render/EventType} type Event type.
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
*/
|
||||
this.transform_ = createTransform();
|
||||
dispatchComposeEvent_(type, context, frameState, opt_transform) {
|
||||
const layer = this.getLayer();
|
||||
if (layer.hasListener(type)) {
|
||||
const width = frameState.size[0] * frameState.pixelRatio;
|
||||
const height = frameState.size[1] * frameState.pixelRatio;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
rotateAtOffset(context, -rotation, width / 2, height / 2);
|
||||
const transform = opt_transform !== undefined ?
|
||||
opt_transform : this.getTransform(frameState, 0);
|
||||
const render = new CanvasImmediateRenderer(
|
||||
context, frameState.pixelRatio, frameState.extent, transform,
|
||||
frameState.viewState.rotation);
|
||||
const composeEvent = new RenderEvent(type, render, frameState,
|
||||
context, null);
|
||||
layer.dispatchEvent(composeEvent);
|
||||
rotateAtOffset(context, rotation, width / 2, height / 2);
|
||||
}
|
||||
}
|
||||
|
||||
};
|
||||
/**
|
||||
* @param {module:ol/coordinate~Coordinate} coordinate Coordinate.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState FrameState.
|
||||
* @param {number} hitTolerance Hit tolerance in pixels.
|
||||
* @param {function(this: S, module:ol/layer/Layer, (Uint8ClampedArray|Uint8Array)): T} callback Layer
|
||||
* callback.
|
||||
* @param {S} thisArg Value to use as `this` when executing `callback`.
|
||||
* @return {T|undefined} Callback result.
|
||||
* @template S,T,U
|
||||
*/
|
||||
forEachLayerAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
const hasFeature = this.forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, TRUE, this);
|
||||
|
||||
if (hasFeature) {
|
||||
return callback.call(thisArg, this.getLayer(), null);
|
||||
} else {
|
||||
return undefined;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @protected
|
||||
*/
|
||||
postCompose(context, frameState, layerState, opt_transform) {
|
||||
this.dispatchComposeEvent_(RenderEventType.POSTCOMPOSE, context, frameState, opt_transform);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @protected
|
||||
*/
|
||||
preCompose(context, frameState, opt_transform) {
|
||||
this.dispatchComposeEvent_(RenderEventType.PRECOMPOSE, context, frameState, opt_transform);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @protected
|
||||
*/
|
||||
dispatchRenderEvent(context, frameState, opt_transform) {
|
||||
this.dispatchComposeEvent_(RenderEventType.RENDER, context, frameState, opt_transform);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {number} offsetX Offset on the x-axis in view coordinates.
|
||||
* @protected
|
||||
* @return {!module:ol/transform~Transform} Transform.
|
||||
*/
|
||||
getTransform(frameState, offsetX) {
|
||||
const viewState = frameState.viewState;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const dx1 = pixelRatio * frameState.size[0] / 2;
|
||||
const dy1 = pixelRatio * frameState.size[1] / 2;
|
||||
const sx = pixelRatio / viewState.resolution;
|
||||
const sy = -sx;
|
||||
const angle = -viewState.rotation;
|
||||
const dx2 = -viewState.center[0] + offsetX;
|
||||
const dy2 = -viewState.center[1];
|
||||
return composeTransform(this.transform_, dx1, dy1, sx, sy, angle, dx2, dy2);
|
||||
}
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
*/
|
||||
composeFrame(frameState, layerState, context) {}
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @return {boolean} whether composeFrame should be called.
|
||||
*/
|
||||
prepareFrame(frameState, layerState) {}
|
||||
}
|
||||
|
||||
inherits(CanvasLayerRenderer, LayerRenderer);
|
||||
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/extent~Extent} extent Clip extent.
|
||||
* @protected
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.clip = function(context, frameState, extent) {
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const width = frameState.size[0] * pixelRatio;
|
||||
const height = frameState.size[1] * pixelRatio;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const topLeft = getTopLeft(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
const topRight = getTopRight(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
const bottomRight = getBottomRight(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
const bottomLeft = getBottomLeft(/** @type {module:ol/extent~Extent} */ (extent));
|
||||
|
||||
applyTransform(frameState.coordinateToPixelTransform, topLeft);
|
||||
applyTransform(frameState.coordinateToPixelTransform, topRight);
|
||||
applyTransform(frameState.coordinateToPixelTransform, bottomRight);
|
||||
applyTransform(frameState.coordinateToPixelTransform, bottomLeft);
|
||||
|
||||
context.save();
|
||||
rotateAtOffset(context, -rotation, width / 2, height / 2);
|
||||
context.beginPath();
|
||||
context.moveTo(topLeft[0] * pixelRatio, topLeft[1] * pixelRatio);
|
||||
context.lineTo(topRight[0] * pixelRatio, topRight[1] * pixelRatio);
|
||||
context.lineTo(bottomRight[0] * pixelRatio, bottomRight[1] * pixelRatio);
|
||||
context.lineTo(bottomLeft[0] * pixelRatio, bottomLeft[1] * pixelRatio);
|
||||
context.clip();
|
||||
rotateAtOffset(context, rotation, width / 2, height / 2);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/render/EventType} type Event type.
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @private
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.dispatchComposeEvent_ = function(type, context, frameState, opt_transform) {
|
||||
const layer = this.getLayer();
|
||||
if (layer.hasListener(type)) {
|
||||
const width = frameState.size[0] * frameState.pixelRatio;
|
||||
const height = frameState.size[1] * frameState.pixelRatio;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
rotateAtOffset(context, -rotation, width / 2, height / 2);
|
||||
const transform = opt_transform !== undefined ?
|
||||
opt_transform : this.getTransform(frameState, 0);
|
||||
const render = new CanvasImmediateRenderer(
|
||||
context, frameState.pixelRatio, frameState.extent, transform,
|
||||
frameState.viewState.rotation);
|
||||
const composeEvent = new RenderEvent(type, render, frameState,
|
||||
context, null);
|
||||
layer.dispatchEvent(composeEvent);
|
||||
rotateAtOffset(context, rotation, width / 2, height / 2);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/coordinate~Coordinate} coordinate Coordinate.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState FrameState.
|
||||
* @param {number} hitTolerance Hit tolerance in pixels.
|
||||
* @param {function(this: S, module:ol/layer/Layer, (Uint8ClampedArray|Uint8Array)): T} callback Layer
|
||||
* callback.
|
||||
* @param {S} thisArg Value to use as `this` when executing `callback`.
|
||||
* @return {T|undefined} Callback result.
|
||||
* @template S,T,U
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.forEachLayerAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
const hasFeature = this.forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, TRUE, this);
|
||||
|
||||
if (hasFeature) {
|
||||
return callback.call(thisArg, this.getLayer(), null);
|
||||
} else {
|
||||
return undefined;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @protected
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.postCompose = function(context, frameState, layerState, opt_transform) {
|
||||
this.dispatchComposeEvent_(RenderEventType.POSTCOMPOSE, context, frameState, opt_transform);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @protected
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.preCompose = function(context, frameState, opt_transform) {
|
||||
this.dispatchComposeEvent_(RenderEventType.PRECOMPOSE, context, frameState, opt_transform);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/transform~Transform=} opt_transform Transform.
|
||||
* @protected
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.dispatchRenderEvent = function(context, frameState, opt_transform) {
|
||||
this.dispatchComposeEvent_(RenderEventType.RENDER, context, frameState, opt_transform);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {number} offsetX Offset on the x-axis in view coordinates.
|
||||
* @protected
|
||||
* @return {!module:ol/transform~Transform} Transform.
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.getTransform = function(frameState, offsetX) {
|
||||
const viewState = frameState.viewState;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const dx1 = pixelRatio * frameState.size[0] / 2;
|
||||
const dy1 = pixelRatio * frameState.size[1] / 2;
|
||||
const sx = pixelRatio / viewState.resolution;
|
||||
const sy = -sx;
|
||||
const angle = -viewState.rotation;
|
||||
const dx2 = -viewState.center[0] + offsetX;
|
||||
const dy2 = -viewState.center[1];
|
||||
return composeTransform(this.transform_, dx1, dy1, sx, sy, angle, dx2, dy2);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.composeFrame = function(frameState, layerState, context) {};
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @return {boolean} whether composeFrame should be called.
|
||||
*/
|
||||
CanvasLayerRenderer.prototype.prepareFrame = function(frameState, layerState) {};
|
||||
export default CanvasLayerRenderer;
|
||||
|
||||
+175
-178
@@ -27,201 +27,198 @@ export const layerRendererConstructors = [];
|
||||
* @param {module:ol/PluggableMap} map Map.
|
||||
* @api
|
||||
*/
|
||||
const CanvasMapRenderer = function(map) {
|
||||
MapRenderer.call(this, map);
|
||||
class CanvasMapRenderer {
|
||||
constructor(map) {
|
||||
MapRenderer.call(this, map);
|
||||
|
||||
const container = map.getViewport();
|
||||
const container = map.getViewport();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context_ = createCanvasContext2D();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {HTMLCanvasElement}
|
||||
*/
|
||||
this.canvas_ = this.context_.canvas;
|
||||
|
||||
this.canvas_.style.width = '100%';
|
||||
this.canvas_.style.height = '100%';
|
||||
this.canvas_.style.display = 'block';
|
||||
this.canvas_.className = CLASS_UNSELECTABLE;
|
||||
container.insertBefore(this.canvas_, container.childNodes[0] || null);
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
*/
|
||||
this.renderedVisible_ = true;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
*/
|
||||
this.transform_ = createTransform();
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/render/EventType} type Event type.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @private
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context_ = createCanvasContext2D();
|
||||
dispatchComposeEvent_(type, frameState) {
|
||||
const map = this.getMap();
|
||||
const context = this.context_;
|
||||
if (map.hasListener(type)) {
|
||||
const extent = frameState.extent;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const viewState = frameState.viewState;
|
||||
const rotation = viewState.rotation;
|
||||
|
||||
const transform = this.getTransform(frameState);
|
||||
|
||||
const vectorContext = new CanvasImmediateRenderer(context, pixelRatio,
|
||||
extent, transform, rotation);
|
||||
const composeEvent = new RenderEvent(type, vectorContext,
|
||||
frameState, context, null);
|
||||
map.dispatchEvent(composeEvent);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {HTMLCanvasElement}
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @protected
|
||||
* @return {!module:ol/transform~Transform} Transform.
|
||||
*/
|
||||
this.canvas_ = this.context_.canvas;
|
||||
|
||||
this.canvas_.style.width = '100%';
|
||||
this.canvas_.style.height = '100%';
|
||||
this.canvas_.style.display = 'block';
|
||||
this.canvas_.className = CLASS_UNSELECTABLE;
|
||||
container.insertBefore(this.canvas_, container.childNodes[0] || null);
|
||||
getTransform(frameState) {
|
||||
const viewState = frameState.viewState;
|
||||
const dx1 = this.canvas_.width / 2;
|
||||
const dy1 = this.canvas_.height / 2;
|
||||
const sx = frameState.pixelRatio / viewState.resolution;
|
||||
const sy = -sx;
|
||||
const angle = -viewState.rotation;
|
||||
const dx2 = -viewState.center[0];
|
||||
const dy2 = -viewState.center[1];
|
||||
return composeTransform(this.transform_, dx1, dy1, sx, sy, angle, dx2, dy2);
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.renderedVisible_ = true;
|
||||
renderFrame(frameState) {
|
||||
|
||||
if (!frameState) {
|
||||
if (this.renderedVisible_) {
|
||||
this.canvas_.style.display = 'none';
|
||||
this.renderedVisible_ = false;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
const context = this.context_;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const width = Math.round(frameState.size[0] * pixelRatio);
|
||||
const height = Math.round(frameState.size[1] * pixelRatio);
|
||||
if (this.canvas_.width != width || this.canvas_.height != height) {
|
||||
this.canvas_.width = width;
|
||||
this.canvas_.height = height;
|
||||
} else {
|
||||
context.clearRect(0, 0, width, height);
|
||||
}
|
||||
|
||||
const rotation = frameState.viewState.rotation;
|
||||
|
||||
this.calculateMatrices2D(frameState);
|
||||
|
||||
this.dispatchComposeEvent_(RenderEventType.PRECOMPOSE, frameState);
|
||||
|
||||
const layerStatesArray = frameState.layerStatesArray;
|
||||
stableSort(layerStatesArray, sortByZIndex);
|
||||
|
||||
if (rotation) {
|
||||
context.save();
|
||||
rotateAtOffset(context, rotation, width / 2, height / 2);
|
||||
}
|
||||
|
||||
const viewResolution = frameState.viewState.resolution;
|
||||
let i, ii, layer, layerRenderer, layerState;
|
||||
for (i = 0, ii = layerStatesArray.length; i < ii; ++i) {
|
||||
layerState = layerStatesArray[i];
|
||||
layer = layerState.layer;
|
||||
layerRenderer = /** @type {module:ol/renderer/canvas/Layer} */ (this.getLayerRenderer(layer));
|
||||
if (!visibleAtResolution(layerState, viewResolution) ||
|
||||
layerState.sourceState != SourceState.READY) {
|
||||
continue;
|
||||
}
|
||||
if (layerRenderer.prepareFrame(frameState, layerState)) {
|
||||
layerRenderer.composeFrame(frameState, layerState, context);
|
||||
}
|
||||
}
|
||||
|
||||
if (rotation) {
|
||||
context.restore();
|
||||
}
|
||||
|
||||
this.dispatchComposeEvent_(RenderEventType.POSTCOMPOSE, frameState);
|
||||
|
||||
if (!this.renderedVisible_) {
|
||||
this.canvas_.style.display = '';
|
||||
this.renderedVisible_ = true;
|
||||
}
|
||||
|
||||
this.scheduleRemoveUnusedLayerRenderers(frameState);
|
||||
this.scheduleExpireIconCache(frameState);
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.transform_ = createTransform();
|
||||
forEachLayerAtPixel(pixel, frameState, hitTolerance, callback, thisArg, layerFilter, thisArg2) {
|
||||
let result;
|
||||
const viewState = frameState.viewState;
|
||||
const viewResolution = viewState.resolution;
|
||||
|
||||
};
|
||||
const layerStates = frameState.layerStatesArray;
|
||||
const numLayers = layerStates.length;
|
||||
|
||||
const coordinate = applyTransform(
|
||||
frameState.pixelToCoordinateTransform, pixel.slice());
|
||||
|
||||
let i;
|
||||
for (i = numLayers - 1; i >= 0; --i) {
|
||||
const layerState = layerStates[i];
|
||||
const layer = layerState.layer;
|
||||
if (visibleAtResolution(layerState, viewResolution) && layerFilter.call(thisArg2, layer)) {
|
||||
const layerRenderer = /** @type {module:ol/renderer/canvas/Layer} */ (this.getLayerRenderer(layer));
|
||||
result = layerRenderer.forEachLayerAtCoordinate(
|
||||
coordinate, frameState, hitTolerance, callback, thisArg);
|
||||
if (result) {
|
||||
return result;
|
||||
}
|
||||
}
|
||||
}
|
||||
return undefined;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
registerLayerRenderers(constructors) {
|
||||
MapRenderer.prototype.registerLayerRenderers.call(this, constructors);
|
||||
for (let i = 0, ii = constructors.length; i < ii; ++i) {
|
||||
const ctor = constructors[i];
|
||||
if (!includes(layerRendererConstructors, ctor)) {
|
||||
layerRendererConstructors.push(ctor);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inherits(CanvasMapRenderer, MapRenderer);
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/render/EventType} type Event type.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @private
|
||||
*/
|
||||
CanvasMapRenderer.prototype.dispatchComposeEvent_ = function(type, frameState) {
|
||||
const map = this.getMap();
|
||||
const context = this.context_;
|
||||
if (map.hasListener(type)) {
|
||||
const extent = frameState.extent;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const viewState = frameState.viewState;
|
||||
const rotation = viewState.rotation;
|
||||
|
||||
const transform = this.getTransform(frameState);
|
||||
|
||||
const vectorContext = new CanvasImmediateRenderer(context, pixelRatio,
|
||||
extent, transform, rotation);
|
||||
const composeEvent = new RenderEvent(type, vectorContext,
|
||||
frameState, context, null);
|
||||
map.dispatchEvent(composeEvent);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @protected
|
||||
* @return {!module:ol/transform~Transform} Transform.
|
||||
*/
|
||||
CanvasMapRenderer.prototype.getTransform = function(frameState) {
|
||||
const viewState = frameState.viewState;
|
||||
const dx1 = this.canvas_.width / 2;
|
||||
const dy1 = this.canvas_.height / 2;
|
||||
const sx = frameState.pixelRatio / viewState.resolution;
|
||||
const sy = -sx;
|
||||
const angle = -viewState.rotation;
|
||||
const dx2 = -viewState.center[0];
|
||||
const dy2 = -viewState.center[1];
|
||||
return composeTransform(this.transform_, dx1, dy1, sx, sy, angle, dx2, dy2);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasMapRenderer.prototype.renderFrame = function(frameState) {
|
||||
|
||||
if (!frameState) {
|
||||
if (this.renderedVisible_) {
|
||||
this.canvas_.style.display = 'none';
|
||||
this.renderedVisible_ = false;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
const context = this.context_;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const width = Math.round(frameState.size[0] * pixelRatio);
|
||||
const height = Math.round(frameState.size[1] * pixelRatio);
|
||||
if (this.canvas_.width != width || this.canvas_.height != height) {
|
||||
this.canvas_.width = width;
|
||||
this.canvas_.height = height;
|
||||
} else {
|
||||
context.clearRect(0, 0, width, height);
|
||||
}
|
||||
|
||||
const rotation = frameState.viewState.rotation;
|
||||
|
||||
this.calculateMatrices2D(frameState);
|
||||
|
||||
this.dispatchComposeEvent_(RenderEventType.PRECOMPOSE, frameState);
|
||||
|
||||
const layerStatesArray = frameState.layerStatesArray;
|
||||
stableSort(layerStatesArray, sortByZIndex);
|
||||
|
||||
if (rotation) {
|
||||
context.save();
|
||||
rotateAtOffset(context, rotation, width / 2, height / 2);
|
||||
}
|
||||
|
||||
const viewResolution = frameState.viewState.resolution;
|
||||
let i, ii, layer, layerRenderer, layerState;
|
||||
for (i = 0, ii = layerStatesArray.length; i < ii; ++i) {
|
||||
layerState = layerStatesArray[i];
|
||||
layer = layerState.layer;
|
||||
layerRenderer = /** @type {module:ol/renderer/canvas/Layer} */ (this.getLayerRenderer(layer));
|
||||
if (!visibleAtResolution(layerState, viewResolution) ||
|
||||
layerState.sourceState != SourceState.READY) {
|
||||
continue;
|
||||
}
|
||||
if (layerRenderer.prepareFrame(frameState, layerState)) {
|
||||
layerRenderer.composeFrame(frameState, layerState, context);
|
||||
}
|
||||
}
|
||||
|
||||
if (rotation) {
|
||||
context.restore();
|
||||
}
|
||||
|
||||
this.dispatchComposeEvent_(RenderEventType.POSTCOMPOSE, frameState);
|
||||
|
||||
if (!this.renderedVisible_) {
|
||||
this.canvas_.style.display = '';
|
||||
this.renderedVisible_ = true;
|
||||
}
|
||||
|
||||
this.scheduleRemoveUnusedLayerRenderers(frameState);
|
||||
this.scheduleExpireIconCache(frameState);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasMapRenderer.prototype.forEachLayerAtPixel = function(pixel, frameState, hitTolerance, callback, thisArg,
|
||||
layerFilter, thisArg2) {
|
||||
let result;
|
||||
const viewState = frameState.viewState;
|
||||
const viewResolution = viewState.resolution;
|
||||
|
||||
const layerStates = frameState.layerStatesArray;
|
||||
const numLayers = layerStates.length;
|
||||
|
||||
const coordinate = applyTransform(
|
||||
frameState.pixelToCoordinateTransform, pixel.slice());
|
||||
|
||||
let i;
|
||||
for (i = numLayers - 1; i >= 0; --i) {
|
||||
const layerState = layerStates[i];
|
||||
const layer = layerState.layer;
|
||||
if (visibleAtResolution(layerState, viewResolution) && layerFilter.call(thisArg2, layer)) {
|
||||
const layerRenderer = /** @type {module:ol/renderer/canvas/Layer} */ (this.getLayerRenderer(layer));
|
||||
result = layerRenderer.forEachLayerAtCoordinate(
|
||||
coordinate, frameState, hitTolerance, callback, thisArg);
|
||||
if (result) {
|
||||
return result;
|
||||
}
|
||||
}
|
||||
}
|
||||
return undefined;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasMapRenderer.prototype.registerLayerRenderers = function(constructors) {
|
||||
MapRenderer.prototype.registerLayerRenderers.call(this, constructors);
|
||||
for (let i = 0, ii = constructors.length; i < ii; ++i) {
|
||||
const ctor = constructors[i];
|
||||
if (!includes(layerRendererConstructors, ctor)) {
|
||||
layerRendererConstructors.push(ctor);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
export default CanvasMapRenderer;
|
||||
|
||||
+312
-313
@@ -17,71 +17,339 @@ import {create as createTransform, compose as composeTransform} from '../../tran
|
||||
* @param {module:ol/layer/Tile|module:ol/layer/VectorTile} tileLayer Tile layer.
|
||||
* @api
|
||||
*/
|
||||
const CanvasTileLayerRenderer = function(tileLayer) {
|
||||
class CanvasTileLayerRenderer {
|
||||
constructor(tileLayer) {
|
||||
|
||||
IntermediateCanvasRenderer.call(this, tileLayer);
|
||||
IntermediateCanvasRenderer.call(this, tileLayer);
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context = this.context === null ? null : createCanvasContext2D();
|
||||
/**
|
||||
* @protected
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context = this.context === null ? null : createCanvasContext2D();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
*/
|
||||
this.oversampling_;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/extent~Extent}
|
||||
*/
|
||||
this.renderedExtent_ = null;
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedRevision;
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {!Array.<module:ol/Tile>}
|
||||
*/
|
||||
this.renderedTiles = [];
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
*/
|
||||
this.newTiles_ = false;
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {module:ol/extent~Extent}
|
||||
*/
|
||||
this.tmpExtent = createEmpty();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/TileRange}
|
||||
*/
|
||||
this.tmpTileRange_ = new TileRange(0, 0, 0, 0);
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
*/
|
||||
this.imageTransform_ = createTransform();
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {number}
|
||||
*/
|
||||
this.zDirection = 0;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
* @param {module:ol/Tile} tile Tile.
|
||||
* @return {boolean} Tile is drawable.
|
||||
*/
|
||||
this.oversampling_;
|
||||
isDrawableTile_(tile) {
|
||||
const tileState = tile.getState();
|
||||
const useInterimTilesOnError = this.getLayer().getUseInterimTilesOnError();
|
||||
return tileState == TileState.LOADED ||
|
||||
tileState == TileState.EMPTY ||
|
||||
tileState == TileState.ERROR && !useInterimTilesOnError;
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/extent~Extent}
|
||||
* @param {number} z Tile coordinate z.
|
||||
* @param {number} x Tile coordinate x.
|
||||
* @param {number} y Tile coordinate y.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {module:ol/proj/Projection} projection Projection.
|
||||
* @return {!module:ol/Tile} Tile.
|
||||
*/
|
||||
this.renderedExtent_ = null;
|
||||
getTile(z, x, y, pixelRatio, projection) {
|
||||
const layer = this.getLayer();
|
||||
const source = /** @type {module:ol/source/Tile} */ (layer.getSource());
|
||||
let tile = source.getTile(z, x, y, pixelRatio, projection);
|
||||
if (tile.getState() == TileState.ERROR) {
|
||||
if (!layer.getUseInterimTilesOnError()) {
|
||||
// When useInterimTilesOnError is false, we consider the error tile as loaded.
|
||||
tile.setState(TileState.LOADED);
|
||||
} else if (layer.getPreload() > 0) {
|
||||
// Preloaded tiles for lower resolutions might have finished loading.
|
||||
this.newTiles_ = true;
|
||||
}
|
||||
}
|
||||
if (!this.isDrawableTile_(tile)) {
|
||||
tile = tile.getInterimTile();
|
||||
}
|
||||
return tile;
|
||||
}
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {number}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.renderedRevision;
|
||||
prepareFrame(frameState, layerState) {
|
||||
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const size = frameState.size;
|
||||
const viewState = frameState.viewState;
|
||||
const projection = viewState.projection;
|
||||
const viewResolution = viewState.resolution;
|
||||
const viewCenter = viewState.center;
|
||||
|
||||
const tileLayer = this.getLayer();
|
||||
const tileSource = /** @type {module:ol/source/Tile} */ (tileLayer.getSource());
|
||||
const sourceRevision = tileSource.getRevision();
|
||||
const tileGrid = tileSource.getTileGridForProjection(projection);
|
||||
const z = tileGrid.getZForResolution(viewResolution, this.zDirection);
|
||||
const tileResolution = tileGrid.getResolution(z);
|
||||
let oversampling = Math.round(viewResolution / tileResolution) || 1;
|
||||
let extent = frameState.extent;
|
||||
|
||||
if (layerState.extent !== undefined) {
|
||||
extent = getIntersection(extent, layerState.extent);
|
||||
}
|
||||
if (isEmpty(extent)) {
|
||||
// Return false to prevent the rendering of the layer.
|
||||
return false;
|
||||
}
|
||||
|
||||
const tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
|
||||
const imageExtent = tileGrid.getTileRangeExtent(z, tileRange);
|
||||
|
||||
const tilePixelRatio = tileSource.getTilePixelRatio(pixelRatio);
|
||||
|
||||
/**
|
||||
* @type {Object.<number, Object.<string, module:ol/Tile>>}
|
||||
*/
|
||||
const tilesToDrawByZ = {};
|
||||
tilesToDrawByZ[z] = {};
|
||||
|
||||
const findLoadedTiles = this.createLoadedTileFinder(
|
||||
tileSource, projection, tilesToDrawByZ);
|
||||
|
||||
const hints = frameState.viewHints;
|
||||
const animatingOrInteracting = hints[ViewHint.ANIMATING] || hints[ViewHint.INTERACTING];
|
||||
|
||||
const tmpExtent = this.tmpExtent;
|
||||
const tmpTileRange = this.tmpTileRange_;
|
||||
this.newTiles_ = false;
|
||||
let tile, x, y;
|
||||
for (x = tileRange.minX; x <= tileRange.maxX; ++x) {
|
||||
for (y = tileRange.minY; y <= tileRange.maxY; ++y) {
|
||||
if (Date.now() - frameState.time > 16 && animatingOrInteracting) {
|
||||
continue;
|
||||
}
|
||||
tile = this.getTile(z, x, y, pixelRatio, projection);
|
||||
if (this.isDrawableTile_(tile)) {
|
||||
const uid = getUid(this);
|
||||
if (tile.getState() == TileState.LOADED) {
|
||||
tilesToDrawByZ[z][tile.tileCoord.toString()] = tile;
|
||||
const inTransition = tile.inTransition(uid);
|
||||
if (!this.newTiles_ && (inTransition || this.renderedTiles.indexOf(tile) === -1)) {
|
||||
this.newTiles_ = true;
|
||||
}
|
||||
}
|
||||
if (tile.getAlpha(uid, frameState.time) === 1) {
|
||||
// don't look for alt tiles if alpha is 1
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
const childTileRange = tileGrid.getTileCoordChildTileRange(
|
||||
tile.tileCoord, tmpTileRange, tmpExtent);
|
||||
let covered = false;
|
||||
if (childTileRange) {
|
||||
covered = findLoadedTiles(z + 1, childTileRange);
|
||||
}
|
||||
if (!covered) {
|
||||
tileGrid.forEachTileCoordParentTileRange(
|
||||
tile.tileCoord, findLoadedTiles, null, tmpTileRange, tmpExtent);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
const renderedResolution = tileResolution * pixelRatio / tilePixelRatio * oversampling;
|
||||
if (!(this.renderedResolution && Date.now() - frameState.time > 16 && animatingOrInteracting) && (
|
||||
this.newTiles_ ||
|
||||
!(this.renderedExtent_ && containsExtent(this.renderedExtent_, extent)) ||
|
||||
this.renderedRevision != sourceRevision ||
|
||||
oversampling != this.oversampling_ ||
|
||||
!animatingOrInteracting && renderedResolution != this.renderedResolution
|
||||
)) {
|
||||
|
||||
const context = this.context;
|
||||
if (context) {
|
||||
const tilePixelSize = tileSource.getTilePixelSize(z, pixelRatio, projection);
|
||||
const width = Math.round(tileRange.getWidth() * tilePixelSize[0] / oversampling);
|
||||
const height = Math.round(tileRange.getHeight() * tilePixelSize[1] / oversampling);
|
||||
const canvas = context.canvas;
|
||||
if (canvas.width != width || canvas.height != height) {
|
||||
this.oversampling_ = oversampling;
|
||||
canvas.width = width;
|
||||
canvas.height = height;
|
||||
} else {
|
||||
if (this.renderedExtent_ && !equals(imageExtent, this.renderedExtent_)) {
|
||||
context.clearRect(0, 0, width, height);
|
||||
}
|
||||
oversampling = this.oversampling_;
|
||||
}
|
||||
}
|
||||
|
||||
this.renderedTiles.length = 0;
|
||||
/** @type {Array.<number>} */
|
||||
const zs = Object.keys(tilesToDrawByZ).map(Number);
|
||||
zs.sort(function(a, b) {
|
||||
if (a === z) {
|
||||
return 1;
|
||||
} else if (b === z) {
|
||||
return -1;
|
||||
} else {
|
||||
return a > b ? 1 : a < b ? -1 : 0;
|
||||
}
|
||||
});
|
||||
let currentResolution, currentScale, currentTilePixelSize, currentZ, i, ii;
|
||||
let tileExtent, tileGutter, tilesToDraw, w, h;
|
||||
for (i = 0, ii = zs.length; i < ii; ++i) {
|
||||
currentZ = zs[i];
|
||||
currentTilePixelSize = tileSource.getTilePixelSize(currentZ, pixelRatio, projection);
|
||||
currentResolution = tileGrid.getResolution(currentZ);
|
||||
currentScale = currentResolution / tileResolution;
|
||||
tileGutter = tilePixelRatio * tileSource.getGutter(projection);
|
||||
tilesToDraw = tilesToDrawByZ[currentZ];
|
||||
for (const tileCoordKey in tilesToDraw) {
|
||||
tile = tilesToDraw[tileCoordKey];
|
||||
tileExtent = tileGrid.getTileCoordExtent(tile.getTileCoord(), tmpExtent);
|
||||
x = (tileExtent[0] - imageExtent[0]) / tileResolution * tilePixelRatio / oversampling;
|
||||
y = (imageExtent[3] - tileExtent[3]) / tileResolution * tilePixelRatio / oversampling;
|
||||
w = currentTilePixelSize[0] * currentScale / oversampling;
|
||||
h = currentTilePixelSize[1] * currentScale / oversampling;
|
||||
this.drawTileImage(tile, frameState, layerState, x, y, w, h, tileGutter, z === currentZ);
|
||||
this.renderedTiles.push(tile);
|
||||
}
|
||||
}
|
||||
|
||||
this.renderedRevision = sourceRevision;
|
||||
this.renderedResolution = tileResolution * pixelRatio / tilePixelRatio * oversampling;
|
||||
this.renderedExtent_ = imageExtent;
|
||||
}
|
||||
|
||||
const scale = this.renderedResolution / viewResolution;
|
||||
const transform = composeTransform(this.imageTransform_,
|
||||
pixelRatio * size[0] / 2, pixelRatio * size[1] / 2,
|
||||
scale, scale,
|
||||
0,
|
||||
(this.renderedExtent_[0] - viewCenter[0]) / this.renderedResolution * pixelRatio,
|
||||
(viewCenter[1] - this.renderedExtent_[3]) / this.renderedResolution * pixelRatio);
|
||||
composeTransform(this.coordinateToCanvasPixelTransform,
|
||||
pixelRatio * size[0] / 2 - transform[4], pixelRatio * size[1] / 2 - transform[5],
|
||||
pixelRatio / viewResolution, -pixelRatio / viewResolution,
|
||||
0,
|
||||
-viewCenter[0], -viewCenter[1]);
|
||||
|
||||
|
||||
this.updateUsedTiles(frameState.usedTiles, tileSource, z, tileRange);
|
||||
this.manageTilePyramid(frameState, tileSource, tileGrid, pixelRatio,
|
||||
projection, extent, z, tileLayer.getPreload());
|
||||
this.scheduleExpireCache(frameState, tileSource);
|
||||
|
||||
return this.renderedTiles.length > 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {!Array.<module:ol/Tile>}
|
||||
* @param {module:ol/Tile} tile Tile.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @param {number} x Left of the tile.
|
||||
* @param {number} y Top of the tile.
|
||||
* @param {number} w Width of the tile.
|
||||
* @param {number} h Height of the tile.
|
||||
* @param {number} gutter Tile gutter.
|
||||
* @param {boolean} transition Apply an alpha transition.
|
||||
*/
|
||||
this.renderedTiles = [];
|
||||
drawTileImage(tile, frameState, layerState, x, y, w, h, gutter, transition) {
|
||||
const image = tile.getImage(this.getLayer());
|
||||
if (!image) {
|
||||
return;
|
||||
}
|
||||
const uid = getUid(this);
|
||||
const alpha = transition ? tile.getAlpha(uid, frameState.time) : 1;
|
||||
if (alpha === 1 && !this.getLayer().getSource().getOpaque(frameState.viewState.projection)) {
|
||||
this.context.clearRect(x, y, w, h);
|
||||
}
|
||||
const alphaChanged = alpha !== this.context.globalAlpha;
|
||||
if (alphaChanged) {
|
||||
this.context.save();
|
||||
this.context.globalAlpha = alpha;
|
||||
}
|
||||
this.context.drawImage(image, gutter, gutter,
|
||||
image.width - 2 * gutter, image.height - 2 * gutter, x, y, w, h);
|
||||
|
||||
if (alphaChanged) {
|
||||
this.context.restore();
|
||||
}
|
||||
if (alpha !== 1) {
|
||||
frameState.animate = true;
|
||||
} else if (transition) {
|
||||
tile.endTransition(uid);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.newTiles_ = false;
|
||||
getImage() {
|
||||
const context = this.context;
|
||||
return context ? context.canvas : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {module:ol/extent~Extent}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.tmpExtent = createEmpty();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/TileRange}
|
||||
*/
|
||||
this.tmpTileRange_ = new TileRange(0, 0, 0, 0);
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
*/
|
||||
this.imageTransform_ = createTransform();
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {number}
|
||||
*/
|
||||
this.zDirection = 0;
|
||||
|
||||
};
|
||||
getImageTransform() {
|
||||
return this.imageTransform_;
|
||||
}
|
||||
}
|
||||
|
||||
inherits(CanvasTileLayerRenderer, IntermediateCanvasRenderer);
|
||||
|
||||
@@ -107,269 +375,6 @@ CanvasTileLayerRenderer['create'] = function(mapRenderer, layer) {
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @param {module:ol/Tile} tile Tile.
|
||||
* @return {boolean} Tile is drawable.
|
||||
*/
|
||||
CanvasTileLayerRenderer.prototype.isDrawableTile_ = function(tile) {
|
||||
const tileState = tile.getState();
|
||||
const useInterimTilesOnError = this.getLayer().getUseInterimTilesOnError();
|
||||
return tileState == TileState.LOADED ||
|
||||
tileState == TileState.EMPTY ||
|
||||
tileState == TileState.ERROR && !useInterimTilesOnError;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {number} z Tile coordinate z.
|
||||
* @param {number} x Tile coordinate x.
|
||||
* @param {number} y Tile coordinate y.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {module:ol/proj/Projection} projection Projection.
|
||||
* @return {!module:ol/Tile} Tile.
|
||||
*/
|
||||
CanvasTileLayerRenderer.prototype.getTile = function(z, x, y, pixelRatio, projection) {
|
||||
const layer = this.getLayer();
|
||||
const source = /** @type {module:ol/source/Tile} */ (layer.getSource());
|
||||
let tile = source.getTile(z, x, y, pixelRatio, projection);
|
||||
if (tile.getState() == TileState.ERROR) {
|
||||
if (!layer.getUseInterimTilesOnError()) {
|
||||
// When useInterimTilesOnError is false, we consider the error tile as loaded.
|
||||
tile.setState(TileState.LOADED);
|
||||
} else if (layer.getPreload() > 0) {
|
||||
// Preloaded tiles for lower resolutions might have finished loading.
|
||||
this.newTiles_ = true;
|
||||
}
|
||||
}
|
||||
if (!this.isDrawableTile_(tile)) {
|
||||
tile = tile.getInterimTile();
|
||||
}
|
||||
return tile;
|
||||
};
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasTileLayerRenderer.prototype.prepareFrame = function(frameState, layerState) {
|
||||
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const size = frameState.size;
|
||||
const viewState = frameState.viewState;
|
||||
const projection = viewState.projection;
|
||||
const viewResolution = viewState.resolution;
|
||||
const viewCenter = viewState.center;
|
||||
|
||||
const tileLayer = this.getLayer();
|
||||
const tileSource = /** @type {module:ol/source/Tile} */ (tileLayer.getSource());
|
||||
const sourceRevision = tileSource.getRevision();
|
||||
const tileGrid = tileSource.getTileGridForProjection(projection);
|
||||
const z = tileGrid.getZForResolution(viewResolution, this.zDirection);
|
||||
const tileResolution = tileGrid.getResolution(z);
|
||||
let oversampling = Math.round(viewResolution / tileResolution) || 1;
|
||||
let extent = frameState.extent;
|
||||
|
||||
if (layerState.extent !== undefined) {
|
||||
extent = getIntersection(extent, layerState.extent);
|
||||
}
|
||||
if (isEmpty(extent)) {
|
||||
// Return false to prevent the rendering of the layer.
|
||||
return false;
|
||||
}
|
||||
|
||||
const tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
|
||||
const imageExtent = tileGrid.getTileRangeExtent(z, tileRange);
|
||||
|
||||
const tilePixelRatio = tileSource.getTilePixelRatio(pixelRatio);
|
||||
|
||||
/**
|
||||
* @type {Object.<number, Object.<string, module:ol/Tile>>}
|
||||
*/
|
||||
const tilesToDrawByZ = {};
|
||||
tilesToDrawByZ[z] = {};
|
||||
|
||||
const findLoadedTiles = this.createLoadedTileFinder(
|
||||
tileSource, projection, tilesToDrawByZ);
|
||||
|
||||
const hints = frameState.viewHints;
|
||||
const animatingOrInteracting = hints[ViewHint.ANIMATING] || hints[ViewHint.INTERACTING];
|
||||
|
||||
const tmpExtent = this.tmpExtent;
|
||||
const tmpTileRange = this.tmpTileRange_;
|
||||
this.newTiles_ = false;
|
||||
let tile, x, y;
|
||||
for (x = tileRange.minX; x <= tileRange.maxX; ++x) {
|
||||
for (y = tileRange.minY; y <= tileRange.maxY; ++y) {
|
||||
if (Date.now() - frameState.time > 16 && animatingOrInteracting) {
|
||||
continue;
|
||||
}
|
||||
tile = this.getTile(z, x, y, pixelRatio, projection);
|
||||
if (this.isDrawableTile_(tile)) {
|
||||
const uid = getUid(this);
|
||||
if (tile.getState() == TileState.LOADED) {
|
||||
tilesToDrawByZ[z][tile.tileCoord.toString()] = tile;
|
||||
const inTransition = tile.inTransition(uid);
|
||||
if (!this.newTiles_ && (inTransition || this.renderedTiles.indexOf(tile) === -1)) {
|
||||
this.newTiles_ = true;
|
||||
}
|
||||
}
|
||||
if (tile.getAlpha(uid, frameState.time) === 1) {
|
||||
// don't look for alt tiles if alpha is 1
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
const childTileRange = tileGrid.getTileCoordChildTileRange(
|
||||
tile.tileCoord, tmpTileRange, tmpExtent);
|
||||
let covered = false;
|
||||
if (childTileRange) {
|
||||
covered = findLoadedTiles(z + 1, childTileRange);
|
||||
}
|
||||
if (!covered) {
|
||||
tileGrid.forEachTileCoordParentTileRange(
|
||||
tile.tileCoord, findLoadedTiles, null, tmpTileRange, tmpExtent);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
const renderedResolution = tileResolution * pixelRatio / tilePixelRatio * oversampling;
|
||||
if (!(this.renderedResolution && Date.now() - frameState.time > 16 && animatingOrInteracting) && (
|
||||
this.newTiles_ ||
|
||||
!(this.renderedExtent_ && containsExtent(this.renderedExtent_, extent)) ||
|
||||
this.renderedRevision != sourceRevision ||
|
||||
oversampling != this.oversampling_ ||
|
||||
!animatingOrInteracting && renderedResolution != this.renderedResolution
|
||||
)) {
|
||||
|
||||
const context = this.context;
|
||||
if (context) {
|
||||
const tilePixelSize = tileSource.getTilePixelSize(z, pixelRatio, projection);
|
||||
const width = Math.round(tileRange.getWidth() * tilePixelSize[0] / oversampling);
|
||||
const height = Math.round(tileRange.getHeight() * tilePixelSize[1] / oversampling);
|
||||
const canvas = context.canvas;
|
||||
if (canvas.width != width || canvas.height != height) {
|
||||
this.oversampling_ = oversampling;
|
||||
canvas.width = width;
|
||||
canvas.height = height;
|
||||
} else {
|
||||
if (this.renderedExtent_ && !equals(imageExtent, this.renderedExtent_)) {
|
||||
context.clearRect(0, 0, width, height);
|
||||
}
|
||||
oversampling = this.oversampling_;
|
||||
}
|
||||
}
|
||||
|
||||
this.renderedTiles.length = 0;
|
||||
/** @type {Array.<number>} */
|
||||
const zs = Object.keys(tilesToDrawByZ).map(Number);
|
||||
zs.sort(function(a, b) {
|
||||
if (a === z) {
|
||||
return 1;
|
||||
} else if (b === z) {
|
||||
return -1;
|
||||
} else {
|
||||
return a > b ? 1 : a < b ? -1 : 0;
|
||||
}
|
||||
});
|
||||
let currentResolution, currentScale, currentTilePixelSize, currentZ, i, ii;
|
||||
let tileExtent, tileGutter, tilesToDraw, w, h;
|
||||
for (i = 0, ii = zs.length; i < ii; ++i) {
|
||||
currentZ = zs[i];
|
||||
currentTilePixelSize = tileSource.getTilePixelSize(currentZ, pixelRatio, projection);
|
||||
currentResolution = tileGrid.getResolution(currentZ);
|
||||
currentScale = currentResolution / tileResolution;
|
||||
tileGutter = tilePixelRatio * tileSource.getGutter(projection);
|
||||
tilesToDraw = tilesToDrawByZ[currentZ];
|
||||
for (const tileCoordKey in tilesToDraw) {
|
||||
tile = tilesToDraw[tileCoordKey];
|
||||
tileExtent = tileGrid.getTileCoordExtent(tile.getTileCoord(), tmpExtent);
|
||||
x = (tileExtent[0] - imageExtent[0]) / tileResolution * tilePixelRatio / oversampling;
|
||||
y = (imageExtent[3] - tileExtent[3]) / tileResolution * tilePixelRatio / oversampling;
|
||||
w = currentTilePixelSize[0] * currentScale / oversampling;
|
||||
h = currentTilePixelSize[1] * currentScale / oversampling;
|
||||
this.drawTileImage(tile, frameState, layerState, x, y, w, h, tileGutter, z === currentZ);
|
||||
this.renderedTiles.push(tile);
|
||||
}
|
||||
}
|
||||
|
||||
this.renderedRevision = sourceRevision;
|
||||
this.renderedResolution = tileResolution * pixelRatio / tilePixelRatio * oversampling;
|
||||
this.renderedExtent_ = imageExtent;
|
||||
}
|
||||
|
||||
const scale = this.renderedResolution / viewResolution;
|
||||
const transform = composeTransform(this.imageTransform_,
|
||||
pixelRatio * size[0] / 2, pixelRatio * size[1] / 2,
|
||||
scale, scale,
|
||||
0,
|
||||
(this.renderedExtent_[0] - viewCenter[0]) / this.renderedResolution * pixelRatio,
|
||||
(viewCenter[1] - this.renderedExtent_[3]) / this.renderedResolution * pixelRatio);
|
||||
composeTransform(this.coordinateToCanvasPixelTransform,
|
||||
pixelRatio * size[0] / 2 - transform[4], pixelRatio * size[1] / 2 - transform[5],
|
||||
pixelRatio / viewResolution, -pixelRatio / viewResolution,
|
||||
0,
|
||||
-viewCenter[0], -viewCenter[1]);
|
||||
|
||||
|
||||
this.updateUsedTiles(frameState.usedTiles, tileSource, z, tileRange);
|
||||
this.manageTilePyramid(frameState, tileSource, tileGrid, pixelRatio,
|
||||
projection, extent, z, tileLayer.getPreload());
|
||||
this.scheduleExpireCache(frameState, tileSource);
|
||||
|
||||
return this.renderedTiles.length > 0;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/Tile} tile Tile.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
* @param {number} x Left of the tile.
|
||||
* @param {number} y Top of the tile.
|
||||
* @param {number} w Width of the tile.
|
||||
* @param {number} h Height of the tile.
|
||||
* @param {number} gutter Tile gutter.
|
||||
* @param {boolean} transition Apply an alpha transition.
|
||||
*/
|
||||
CanvasTileLayerRenderer.prototype.drawTileImage = function(tile, frameState, layerState, x, y, w, h, gutter, transition) {
|
||||
const image = tile.getImage(this.getLayer());
|
||||
if (!image) {
|
||||
return;
|
||||
}
|
||||
const uid = getUid(this);
|
||||
const alpha = transition ? tile.getAlpha(uid, frameState.time) : 1;
|
||||
if (alpha === 1 && !this.getLayer().getSource().getOpaque(frameState.viewState.projection)) {
|
||||
this.context.clearRect(x, y, w, h);
|
||||
}
|
||||
const alphaChanged = alpha !== this.context.globalAlpha;
|
||||
if (alphaChanged) {
|
||||
this.context.save();
|
||||
this.context.globalAlpha = alpha;
|
||||
}
|
||||
this.context.drawImage(image, gutter, gutter,
|
||||
image.width - 2 * gutter, image.height - 2 * gutter, x, y, w, h);
|
||||
|
||||
if (alphaChanged) {
|
||||
this.context.restore();
|
||||
}
|
||||
if (alpha !== 1) {
|
||||
frameState.animate = true;
|
||||
} else if (transition) {
|
||||
tile.endTransition(uid);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasTileLayerRenderer.prototype.getImage = function() {
|
||||
const context = this.context;
|
||||
return context ? context.canvas : null;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @function
|
||||
* @return {module:ol/layer/Tile|module:ol/layer/VectorTile}
|
||||
@@ -377,10 +382,4 @@ CanvasTileLayerRenderer.prototype.getImage = function() {
|
||||
CanvasTileLayerRenderer.prototype.getLayer;
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasTileLayerRenderer.prototype.getImageTransform = function() {
|
||||
return this.imageTransform_;
|
||||
};
|
||||
export default CanvasTileLayerRenderer;
|
||||
|
||||
@@ -21,66 +21,391 @@ import {defaultOrder as defaultRenderOrder, getTolerance as getRenderTolerance,
|
||||
* @param {module:ol/layer/Vector} vectorLayer Vector layer.
|
||||
* @api
|
||||
*/
|
||||
const CanvasVectorLayerRenderer = function(vectorLayer) {
|
||||
class CanvasVectorLayerRenderer {
|
||||
constructor(vectorLayer) {
|
||||
|
||||
CanvasLayerRenderer.call(this, vectorLayer);
|
||||
CanvasLayerRenderer.call(this, vectorLayer);
|
||||
|
||||
/**
|
||||
* Declutter tree.
|
||||
* @private
|
||||
*/
|
||||
this.declutterTree_ = vectorLayer.getDeclutter() ? rbush(9, undefined) : null;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
*/
|
||||
this.dirty_ = false;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedRevision_ = -1;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedResolution_ = NaN;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/extent~Extent}
|
||||
*/
|
||||
this.renderedExtent_ = createEmpty();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {function(module:ol/Feature, module:ol/Feature): number|null}
|
||||
*/
|
||||
this.renderedRenderOrder_ = null;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/render/canvas/ReplayGroup}
|
||||
*/
|
||||
this.replayGroup_ = null;
|
||||
|
||||
/**
|
||||
* A new replay group had to be created by `prepareFrame()`
|
||||
* @type {boolean}
|
||||
*/
|
||||
this.replayGroupChanged = true;
|
||||
|
||||
/**
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context = createCanvasContext2D();
|
||||
|
||||
listen(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Declutter tree.
|
||||
* @inheritDoc
|
||||
*/
|
||||
disposeInternal() {
|
||||
unlisten(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
CanvasLayerRenderer.prototype.disposeInternal.call(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
*/
|
||||
compose(context, frameState, layerState) {
|
||||
const extent = frameState.extent;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const skippedFeatureUids = layerState.managed ?
|
||||
frameState.skippedFeatureUids : {};
|
||||
const viewState = frameState.viewState;
|
||||
const projection = viewState.projection;
|
||||
const rotation = viewState.rotation;
|
||||
const projectionExtent = projection.getExtent();
|
||||
const vectorSource = /** @type {module:ol/source/Vector} */ (this.getLayer().getSource());
|
||||
|
||||
let transform = this.getTransform(frameState, 0);
|
||||
|
||||
// clipped rendering if layer extent is set
|
||||
const clipExtent = layerState.extent;
|
||||
const clipped = clipExtent !== undefined;
|
||||
if (clipped) {
|
||||
this.clip(context, frameState, /** @type {module:ol/extent~Extent} */ (clipExtent));
|
||||
}
|
||||
const replayGroup = this.replayGroup_;
|
||||
if (replayGroup && !replayGroup.isEmpty()) {
|
||||
if (this.declutterTree_) {
|
||||
this.declutterTree_.clear();
|
||||
}
|
||||
const layer = /** @type {module:ol/layer/Vector} */ (this.getLayer());
|
||||
let drawOffsetX = 0;
|
||||
let drawOffsetY = 0;
|
||||
let replayContext;
|
||||
const transparentLayer = layerState.opacity !== 1;
|
||||
const hasRenderListeners = layer.hasListener(RenderEventType.RENDER);
|
||||
if (transparentLayer || hasRenderListeners) {
|
||||
let drawWidth = context.canvas.width;
|
||||
let drawHeight = context.canvas.height;
|
||||
if (rotation) {
|
||||
const drawSize = Math.round(Math.sqrt(drawWidth * drawWidth + drawHeight * drawHeight));
|
||||
drawOffsetX = (drawSize - drawWidth) / 2;
|
||||
drawOffsetY = (drawSize - drawHeight) / 2;
|
||||
drawWidth = drawHeight = drawSize;
|
||||
}
|
||||
// resize and clear
|
||||
this.context.canvas.width = drawWidth;
|
||||
this.context.canvas.height = drawHeight;
|
||||
replayContext = this.context;
|
||||
} else {
|
||||
replayContext = context;
|
||||
}
|
||||
|
||||
const alpha = replayContext.globalAlpha;
|
||||
if (!transparentLayer) {
|
||||
// for performance reasons, context.save / context.restore is not used
|
||||
// to save and restore the transformation matrix and the opacity.
|
||||
// see http://jsperf.com/context-save-restore-versus-variable
|
||||
replayContext.globalAlpha = layerState.opacity;
|
||||
}
|
||||
|
||||
if (replayContext != context) {
|
||||
replayContext.translate(drawOffsetX, drawOffsetY);
|
||||
}
|
||||
|
||||
const width = frameState.size[0] * pixelRatio;
|
||||
const height = frameState.size[1] * pixelRatio;
|
||||
rotateAtOffset(replayContext, -rotation,
|
||||
width / 2, height / 2);
|
||||
replayGroup.replay(replayContext, transform, rotation, skippedFeatureUids);
|
||||
if (vectorSource.getWrapX() && projection.canWrapX() &&
|
||||
!containsExtent(projectionExtent, extent)) {
|
||||
let startX = extent[0];
|
||||
const worldWidth = getWidth(projectionExtent);
|
||||
let world = 0;
|
||||
let offsetX;
|
||||
while (startX < projectionExtent[0]) {
|
||||
--world;
|
||||
offsetX = worldWidth * world;
|
||||
transform = this.getTransform(frameState, offsetX);
|
||||
replayGroup.replay(replayContext, transform, rotation, skippedFeatureUids);
|
||||
startX += worldWidth;
|
||||
}
|
||||
world = 0;
|
||||
startX = extent[2];
|
||||
while (startX > projectionExtent[2]) {
|
||||
++world;
|
||||
offsetX = worldWidth * world;
|
||||
transform = this.getTransform(frameState, offsetX);
|
||||
replayGroup.replay(replayContext, transform, rotation, skippedFeatureUids);
|
||||
startX -= worldWidth;
|
||||
}
|
||||
}
|
||||
rotateAtOffset(replayContext, rotation,
|
||||
width / 2, height / 2);
|
||||
|
||||
if (hasRenderListeners) {
|
||||
this.dispatchRenderEvent(replayContext, frameState, transform);
|
||||
}
|
||||
if (replayContext != context) {
|
||||
if (transparentLayer) {
|
||||
const mainContextAlpha = context.globalAlpha;
|
||||
context.globalAlpha = layerState.opacity;
|
||||
context.drawImage(replayContext.canvas, -drawOffsetX, -drawOffsetY);
|
||||
context.globalAlpha = mainContextAlpha;
|
||||
} else {
|
||||
context.drawImage(replayContext.canvas, -drawOffsetX, -drawOffsetY);
|
||||
}
|
||||
replayContext.translate(-drawOffsetX, -drawOffsetY);
|
||||
}
|
||||
|
||||
if (!transparentLayer) {
|
||||
replayContext.globalAlpha = alpha;
|
||||
}
|
||||
}
|
||||
|
||||
if (clipped) {
|
||||
context.restore();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
composeFrame(frameState, layerState, context) {
|
||||
const transform = this.getTransform(frameState, 0);
|
||||
this.preCompose(context, frameState, transform);
|
||||
this.compose(context, frameState, layerState);
|
||||
this.postCompose(context, frameState, layerState, transform);
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
if (!this.replayGroup_) {
|
||||
return undefined;
|
||||
} else {
|
||||
const resolution = frameState.viewState.resolution;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const layer = /** @type {module:ol/layer/Vector} */ (this.getLayer());
|
||||
/** @type {!Object.<string, boolean>} */
|
||||
const features = {};
|
||||
const result = this.replayGroup_.forEachFeatureAtCoordinate(coordinate, resolution, rotation, hitTolerance, {},
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @return {?} Callback result.
|
||||
*/
|
||||
function(feature) {
|
||||
const key = getUid(feature).toString();
|
||||
if (!(key in features)) {
|
||||
features[key] = true;
|
||||
return callback.call(thisArg, feature, layer);
|
||||
}
|
||||
}, null);
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/events/Event} event Event.
|
||||
*/
|
||||
handleFontsChanged_(event) {
|
||||
const layer = this.getLayer();
|
||||
if (layer.getVisible() && this.replayGroup_) {
|
||||
layer.changed();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle changes in image style state.
|
||||
* @param {module:ol/events/Event} event Image style change event.
|
||||
* @private
|
||||
*/
|
||||
this.declutterTree_ = vectorLayer.getDeclutter() ? rbush(9, undefined) : null;
|
||||
handleStyleImageChange_(event) {
|
||||
this.renderIfReadyAndVisible();
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.dirty_ = false;
|
||||
prepareFrame(frameState, layerState) {
|
||||
const vectorLayer = /** @type {module:ol/layer/Vector} */ (this.getLayer());
|
||||
const vectorSource = vectorLayer.getSource();
|
||||
|
||||
const animating = frameState.viewHints[ViewHint.ANIMATING];
|
||||
const interacting = frameState.viewHints[ViewHint.INTERACTING];
|
||||
const updateWhileAnimating = vectorLayer.getUpdateWhileAnimating();
|
||||
const updateWhileInteracting = vectorLayer.getUpdateWhileInteracting();
|
||||
|
||||
if (!this.dirty_ && (!updateWhileAnimating && animating) ||
|
||||
(!updateWhileInteracting && interacting)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const frameStateExtent = frameState.extent;
|
||||
const viewState = frameState.viewState;
|
||||
const projection = viewState.projection;
|
||||
const resolution = viewState.resolution;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const vectorLayerRevision = vectorLayer.getRevision();
|
||||
const vectorLayerRenderBuffer = vectorLayer.getRenderBuffer();
|
||||
let vectorLayerRenderOrder = vectorLayer.getRenderOrder();
|
||||
|
||||
if (vectorLayerRenderOrder === undefined) {
|
||||
vectorLayerRenderOrder = defaultRenderOrder;
|
||||
}
|
||||
|
||||
const extent = buffer(frameStateExtent,
|
||||
vectorLayerRenderBuffer * resolution);
|
||||
const projectionExtent = viewState.projection.getExtent();
|
||||
|
||||
if (vectorSource.getWrapX() && viewState.projection.canWrapX() &&
|
||||
!containsExtent(projectionExtent, frameState.extent)) {
|
||||
// For the replay group, we need an extent that intersects the real world
|
||||
// (-180° to +180°). To support geometries in a coordinate range from -540°
|
||||
// to +540°, we add at least 1 world width on each side of the projection
|
||||
// extent. If the viewport is wider than the world, we need to add half of
|
||||
// the viewport width to make sure we cover the whole viewport.
|
||||
const worldWidth = getWidth(projectionExtent);
|
||||
const gutter = Math.max(getWidth(extent) / 2, worldWidth);
|
||||
extent[0] = projectionExtent[0] - gutter;
|
||||
extent[2] = projectionExtent[2] + gutter;
|
||||
}
|
||||
|
||||
if (!this.dirty_ &&
|
||||
this.renderedResolution_ == resolution &&
|
||||
this.renderedRevision_ == vectorLayerRevision &&
|
||||
this.renderedRenderOrder_ == vectorLayerRenderOrder &&
|
||||
containsExtent(this.renderedExtent_, extent)) {
|
||||
this.replayGroupChanged = false;
|
||||
return true;
|
||||
}
|
||||
|
||||
this.replayGroup_ = null;
|
||||
|
||||
this.dirty_ = false;
|
||||
|
||||
const replayGroup = new CanvasReplayGroup(
|
||||
getRenderTolerance(resolution, pixelRatio), extent, resolution,
|
||||
pixelRatio, vectorSource.getOverlaps(), this.declutterTree_, vectorLayer.getRenderBuffer());
|
||||
vectorSource.loadFeatures(extent, resolution, projection);
|
||||
/**
|
||||
* @param {module:ol/Feature} feature Feature.
|
||||
* @this {module:ol/renderer/canvas/VectorLayer}
|
||||
*/
|
||||
const render = function(feature) {
|
||||
let styles;
|
||||
const styleFunction = feature.getStyleFunction() || vectorLayer.getStyleFunction();
|
||||
if (styleFunction) {
|
||||
styles = styleFunction(feature, resolution);
|
||||
}
|
||||
if (styles) {
|
||||
const dirty = this.renderFeature(
|
||||
feature, resolution, pixelRatio, styles, replayGroup);
|
||||
this.dirty_ = this.dirty_ || dirty;
|
||||
}
|
||||
}.bind(this);
|
||||
if (vectorLayerRenderOrder) {
|
||||
/** @type {Array.<module:ol/Feature>} */
|
||||
const features = [];
|
||||
vectorSource.forEachFeatureInExtent(extent,
|
||||
/**
|
||||
* @param {module:ol/Feature} feature Feature.
|
||||
*/
|
||||
function(feature) {
|
||||
features.push(feature);
|
||||
}, this);
|
||||
features.sort(vectorLayerRenderOrder);
|
||||
for (let i = 0, ii = features.length; i < ii; ++i) {
|
||||
render(features[i]);
|
||||
}
|
||||
} else {
|
||||
vectorSource.forEachFeatureInExtent(extent, render, this);
|
||||
}
|
||||
replayGroup.finish();
|
||||
|
||||
this.renderedResolution_ = resolution;
|
||||
this.renderedRevision_ = vectorLayerRevision;
|
||||
this.renderedRenderOrder_ = vectorLayerRenderOrder;
|
||||
this.renderedExtent_ = extent;
|
||||
this.replayGroup_ = replayGroup;
|
||||
|
||||
this.replayGroupChanged = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
* @param {module:ol/Feature} feature Feature.
|
||||
* @param {number} resolution Resolution.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {(module:ol/style/Style|Array.<module:ol/style/Style>)} styles The style or array of styles.
|
||||
* @param {module:ol/render/canvas/ReplayGroup} replayGroup Replay group.
|
||||
* @return {boolean} `true` if an image is loading.
|
||||
*/
|
||||
this.renderedRevision_ = -1;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedResolution_ = NaN;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/extent~Extent}
|
||||
*/
|
||||
this.renderedExtent_ = createEmpty();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {function(module:ol/Feature, module:ol/Feature): number|null}
|
||||
*/
|
||||
this.renderedRenderOrder_ = null;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/render/canvas/ReplayGroup}
|
||||
*/
|
||||
this.replayGroup_ = null;
|
||||
|
||||
/**
|
||||
* A new replay group had to be created by `prepareFrame()`
|
||||
* @type {boolean}
|
||||
*/
|
||||
this.replayGroupChanged = true;
|
||||
|
||||
/**
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context = createCanvasContext2D();
|
||||
|
||||
listen(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
|
||||
};
|
||||
renderFeature(feature, resolution, pixelRatio, styles, replayGroup) {
|
||||
if (!styles) {
|
||||
return false;
|
||||
}
|
||||
let loading = false;
|
||||
if (Array.isArray(styles)) {
|
||||
for (let i = 0, ii = styles.length; i < ii; ++i) {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles[i],
|
||||
getSquaredRenderTolerance(resolution, pixelRatio),
|
||||
this.handleStyleImageChange_, this) || loading;
|
||||
}
|
||||
} else {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles,
|
||||
getSquaredRenderTolerance(resolution, pixelRatio),
|
||||
this.handleStyleImageChange_, this);
|
||||
}
|
||||
return loading;
|
||||
}
|
||||
}
|
||||
|
||||
inherits(CanvasVectorLayerRenderer, CanvasLayerRenderer);
|
||||
|
||||
@@ -106,333 +431,4 @@ CanvasVectorLayerRenderer['create'] = function(mapRenderer, layer) {
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.disposeInternal = function() {
|
||||
unlisten(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
CanvasLayerRenderer.prototype.disposeInternal.call(this);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {CanvasRenderingContext2D} context Context.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @param {module:ol/layer/Layer~State} layerState Layer state.
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.compose = function(context, frameState, layerState) {
|
||||
const extent = frameState.extent;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const skippedFeatureUids = layerState.managed ?
|
||||
frameState.skippedFeatureUids : {};
|
||||
const viewState = frameState.viewState;
|
||||
const projection = viewState.projection;
|
||||
const rotation = viewState.rotation;
|
||||
const projectionExtent = projection.getExtent();
|
||||
const vectorSource = /** @type {module:ol/source/Vector} */ (this.getLayer().getSource());
|
||||
|
||||
let transform = this.getTransform(frameState, 0);
|
||||
|
||||
// clipped rendering if layer extent is set
|
||||
const clipExtent = layerState.extent;
|
||||
const clipped = clipExtent !== undefined;
|
||||
if (clipped) {
|
||||
this.clip(context, frameState, /** @type {module:ol/extent~Extent} */ (clipExtent));
|
||||
}
|
||||
const replayGroup = this.replayGroup_;
|
||||
if (replayGroup && !replayGroup.isEmpty()) {
|
||||
if (this.declutterTree_) {
|
||||
this.declutterTree_.clear();
|
||||
}
|
||||
const layer = /** @type {module:ol/layer/Vector} */ (this.getLayer());
|
||||
let drawOffsetX = 0;
|
||||
let drawOffsetY = 0;
|
||||
let replayContext;
|
||||
const transparentLayer = layerState.opacity !== 1;
|
||||
const hasRenderListeners = layer.hasListener(RenderEventType.RENDER);
|
||||
if (transparentLayer || hasRenderListeners) {
|
||||
let drawWidth = context.canvas.width;
|
||||
let drawHeight = context.canvas.height;
|
||||
if (rotation) {
|
||||
const drawSize = Math.round(Math.sqrt(drawWidth * drawWidth + drawHeight * drawHeight));
|
||||
drawOffsetX = (drawSize - drawWidth) / 2;
|
||||
drawOffsetY = (drawSize - drawHeight) / 2;
|
||||
drawWidth = drawHeight = drawSize;
|
||||
}
|
||||
// resize and clear
|
||||
this.context.canvas.width = drawWidth;
|
||||
this.context.canvas.height = drawHeight;
|
||||
replayContext = this.context;
|
||||
} else {
|
||||
replayContext = context;
|
||||
}
|
||||
|
||||
const alpha = replayContext.globalAlpha;
|
||||
if (!transparentLayer) {
|
||||
// for performance reasons, context.save / context.restore is not used
|
||||
// to save and restore the transformation matrix and the opacity.
|
||||
// see http://jsperf.com/context-save-restore-versus-variable
|
||||
replayContext.globalAlpha = layerState.opacity;
|
||||
}
|
||||
|
||||
if (replayContext != context) {
|
||||
replayContext.translate(drawOffsetX, drawOffsetY);
|
||||
}
|
||||
|
||||
const width = frameState.size[0] * pixelRatio;
|
||||
const height = frameState.size[1] * pixelRatio;
|
||||
rotateAtOffset(replayContext, -rotation,
|
||||
width / 2, height / 2);
|
||||
replayGroup.replay(replayContext, transform, rotation, skippedFeatureUids);
|
||||
if (vectorSource.getWrapX() && projection.canWrapX() &&
|
||||
!containsExtent(projectionExtent, extent)) {
|
||||
let startX = extent[0];
|
||||
const worldWidth = getWidth(projectionExtent);
|
||||
let world = 0;
|
||||
let offsetX;
|
||||
while (startX < projectionExtent[0]) {
|
||||
--world;
|
||||
offsetX = worldWidth * world;
|
||||
transform = this.getTransform(frameState, offsetX);
|
||||
replayGroup.replay(replayContext, transform, rotation, skippedFeatureUids);
|
||||
startX += worldWidth;
|
||||
}
|
||||
world = 0;
|
||||
startX = extent[2];
|
||||
while (startX > projectionExtent[2]) {
|
||||
++world;
|
||||
offsetX = worldWidth * world;
|
||||
transform = this.getTransform(frameState, offsetX);
|
||||
replayGroup.replay(replayContext, transform, rotation, skippedFeatureUids);
|
||||
startX -= worldWidth;
|
||||
}
|
||||
}
|
||||
rotateAtOffset(replayContext, rotation,
|
||||
width / 2, height / 2);
|
||||
|
||||
if (hasRenderListeners) {
|
||||
this.dispatchRenderEvent(replayContext, frameState, transform);
|
||||
}
|
||||
if (replayContext != context) {
|
||||
if (transparentLayer) {
|
||||
const mainContextAlpha = context.globalAlpha;
|
||||
context.globalAlpha = layerState.opacity;
|
||||
context.drawImage(replayContext.canvas, -drawOffsetX, -drawOffsetY);
|
||||
context.globalAlpha = mainContextAlpha;
|
||||
} else {
|
||||
context.drawImage(replayContext.canvas, -drawOffsetX, -drawOffsetY);
|
||||
}
|
||||
replayContext.translate(-drawOffsetX, -drawOffsetY);
|
||||
}
|
||||
|
||||
if (!transparentLayer) {
|
||||
replayContext.globalAlpha = alpha;
|
||||
}
|
||||
}
|
||||
|
||||
if (clipped) {
|
||||
context.restore();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.composeFrame = function(frameState, layerState, context) {
|
||||
const transform = this.getTransform(frameState, 0);
|
||||
this.preCompose(context, frameState, transform);
|
||||
this.compose(context, frameState, layerState);
|
||||
this.postCompose(context, frameState, layerState, transform);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.forEachFeatureAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
if (!this.replayGroup_) {
|
||||
return undefined;
|
||||
} else {
|
||||
const resolution = frameState.viewState.resolution;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const layer = /** @type {module:ol/layer/Vector} */ (this.getLayer());
|
||||
/** @type {!Object.<string, boolean>} */
|
||||
const features = {};
|
||||
const result = this.replayGroup_.forEachFeatureAtCoordinate(coordinate, resolution, rotation, hitTolerance, {},
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @return {?} Callback result.
|
||||
*/
|
||||
function(feature) {
|
||||
const key = getUid(feature).toString();
|
||||
if (!(key in features)) {
|
||||
features[key] = true;
|
||||
return callback.call(thisArg, feature, layer);
|
||||
}
|
||||
}, null);
|
||||
return result;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/events/Event} event Event.
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.handleFontsChanged_ = function(event) {
|
||||
const layer = this.getLayer();
|
||||
if (layer.getVisible() && this.replayGroup_) {
|
||||
layer.changed();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Handle changes in image style state.
|
||||
* @param {module:ol/events/Event} event Image style change event.
|
||||
* @private
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.handleStyleImageChange_ = function(event) {
|
||||
this.renderIfReadyAndVisible();
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.prepareFrame = function(frameState, layerState) {
|
||||
const vectorLayer = /** @type {module:ol/layer/Vector} */ (this.getLayer());
|
||||
const vectorSource = vectorLayer.getSource();
|
||||
|
||||
const animating = frameState.viewHints[ViewHint.ANIMATING];
|
||||
const interacting = frameState.viewHints[ViewHint.INTERACTING];
|
||||
const updateWhileAnimating = vectorLayer.getUpdateWhileAnimating();
|
||||
const updateWhileInteracting = vectorLayer.getUpdateWhileInteracting();
|
||||
|
||||
if (!this.dirty_ && (!updateWhileAnimating && animating) ||
|
||||
(!updateWhileInteracting && interacting)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const frameStateExtent = frameState.extent;
|
||||
const viewState = frameState.viewState;
|
||||
const projection = viewState.projection;
|
||||
const resolution = viewState.resolution;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const vectorLayerRevision = vectorLayer.getRevision();
|
||||
const vectorLayerRenderBuffer = vectorLayer.getRenderBuffer();
|
||||
let vectorLayerRenderOrder = vectorLayer.getRenderOrder();
|
||||
|
||||
if (vectorLayerRenderOrder === undefined) {
|
||||
vectorLayerRenderOrder = defaultRenderOrder;
|
||||
}
|
||||
|
||||
const extent = buffer(frameStateExtent,
|
||||
vectorLayerRenderBuffer * resolution);
|
||||
const projectionExtent = viewState.projection.getExtent();
|
||||
|
||||
if (vectorSource.getWrapX() && viewState.projection.canWrapX() &&
|
||||
!containsExtent(projectionExtent, frameState.extent)) {
|
||||
// For the replay group, we need an extent that intersects the real world
|
||||
// (-180° to +180°). To support geometries in a coordinate range from -540°
|
||||
// to +540°, we add at least 1 world width on each side of the projection
|
||||
// extent. If the viewport is wider than the world, we need to add half of
|
||||
// the viewport width to make sure we cover the whole viewport.
|
||||
const worldWidth = getWidth(projectionExtent);
|
||||
const gutter = Math.max(getWidth(extent) / 2, worldWidth);
|
||||
extent[0] = projectionExtent[0] - gutter;
|
||||
extent[2] = projectionExtent[2] + gutter;
|
||||
}
|
||||
|
||||
if (!this.dirty_ &&
|
||||
this.renderedResolution_ == resolution &&
|
||||
this.renderedRevision_ == vectorLayerRevision &&
|
||||
this.renderedRenderOrder_ == vectorLayerRenderOrder &&
|
||||
containsExtent(this.renderedExtent_, extent)) {
|
||||
this.replayGroupChanged = false;
|
||||
return true;
|
||||
}
|
||||
|
||||
this.replayGroup_ = null;
|
||||
|
||||
this.dirty_ = false;
|
||||
|
||||
const replayGroup = new CanvasReplayGroup(
|
||||
getRenderTolerance(resolution, pixelRatio), extent, resolution,
|
||||
pixelRatio, vectorSource.getOverlaps(), this.declutterTree_, vectorLayer.getRenderBuffer());
|
||||
vectorSource.loadFeatures(extent, resolution, projection);
|
||||
/**
|
||||
* @param {module:ol/Feature} feature Feature.
|
||||
* @this {module:ol/renderer/canvas/VectorLayer}
|
||||
*/
|
||||
const render = function(feature) {
|
||||
let styles;
|
||||
const styleFunction = feature.getStyleFunction() || vectorLayer.getStyleFunction();
|
||||
if (styleFunction) {
|
||||
styles = styleFunction(feature, resolution);
|
||||
}
|
||||
if (styles) {
|
||||
const dirty = this.renderFeature(
|
||||
feature, resolution, pixelRatio, styles, replayGroup);
|
||||
this.dirty_ = this.dirty_ || dirty;
|
||||
}
|
||||
}.bind(this);
|
||||
if (vectorLayerRenderOrder) {
|
||||
/** @type {Array.<module:ol/Feature>} */
|
||||
const features = [];
|
||||
vectorSource.forEachFeatureInExtent(extent,
|
||||
/**
|
||||
* @param {module:ol/Feature} feature Feature.
|
||||
*/
|
||||
function(feature) {
|
||||
features.push(feature);
|
||||
}, this);
|
||||
features.sort(vectorLayerRenderOrder);
|
||||
for (let i = 0, ii = features.length; i < ii; ++i) {
|
||||
render(features[i]);
|
||||
}
|
||||
} else {
|
||||
vectorSource.forEachFeatureInExtent(extent, render, this);
|
||||
}
|
||||
replayGroup.finish();
|
||||
|
||||
this.renderedResolution_ = resolution;
|
||||
this.renderedRevision_ = vectorLayerRevision;
|
||||
this.renderedRenderOrder_ = vectorLayerRenderOrder;
|
||||
this.renderedExtent_ = extent;
|
||||
this.replayGroup_ = replayGroup;
|
||||
|
||||
this.replayGroupChanged = true;
|
||||
return true;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/Feature} feature Feature.
|
||||
* @param {number} resolution Resolution.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {(module:ol/style/Style|Array.<module:ol/style/Style>)} styles The style or array of styles.
|
||||
* @param {module:ol/render/canvas/ReplayGroup} replayGroup Replay group.
|
||||
* @return {boolean} `true` if an image is loading.
|
||||
*/
|
||||
CanvasVectorLayerRenderer.prototype.renderFeature = function(feature, resolution, pixelRatio, styles, replayGroup) {
|
||||
if (!styles) {
|
||||
return false;
|
||||
}
|
||||
let loading = false;
|
||||
if (Array.isArray(styles)) {
|
||||
for (let i = 0, ii = styles.length; i < ii; ++i) {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles[i],
|
||||
getSquaredRenderTolerance(resolution, pixelRatio),
|
||||
this.handleStyleImageChange_, this) || loading;
|
||||
}
|
||||
} else {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles,
|
||||
getSquaredRenderTolerance(resolution, pixelRatio),
|
||||
this.handleStyleImageChange_, this);
|
||||
}
|
||||
return loading;
|
||||
};
|
||||
export default CanvasVectorLayerRenderer;
|
||||
|
||||
@@ -53,45 +53,426 @@ const VECTOR_REPLAYS = {
|
||||
* @param {module:ol/layer/VectorTile} layer VectorTile layer.
|
||||
* @api
|
||||
*/
|
||||
const CanvasVectorTileLayerRenderer = function(layer) {
|
||||
class CanvasVectorTileLayerRenderer {
|
||||
constructor(layer) {
|
||||
|
||||
/**
|
||||
* @type {CanvasRenderingContext2D}
|
||||
*/
|
||||
this.context = null;
|
||||
|
||||
CanvasTileLayerRenderer.call(this, layer);
|
||||
|
||||
/**
|
||||
* Declutter tree.
|
||||
* @private
|
||||
*/
|
||||
this.declutterTree_ = layer.getDeclutter() ? rbush(9, undefined) : null;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
*/
|
||||
this.dirty_ = false;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedLayerRevision_;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
*/
|
||||
this.tmpTransform_ = createTransform();
|
||||
|
||||
// Use lower resolution for pure vector rendering. Closest resolution otherwise.
|
||||
this.zDirection = layer.getRenderMode() == VectorTileRenderType.VECTOR ? 1 : 0;
|
||||
|
||||
listen(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @type {CanvasRenderingContext2D}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.context = null;
|
||||
|
||||
CanvasTileLayerRenderer.call(this, layer);
|
||||
disposeInternal() {
|
||||
unlisten(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
CanvasTileLayerRenderer.prototype.disposeInternal.call(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Declutter tree.
|
||||
* @inheritDoc
|
||||
*/
|
||||
getTile(z, x, y, pixelRatio, projection) {
|
||||
const tile = CanvasTileLayerRenderer.prototype.getTile.call(this, z, x, y, pixelRatio, projection);
|
||||
if (tile.getState() === TileState.LOADED) {
|
||||
this.createReplayGroup_(tile, pixelRatio, projection);
|
||||
if (this.context) {
|
||||
this.renderTileImage_(tile, pixelRatio, projection);
|
||||
}
|
||||
}
|
||||
return tile;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
prepareFrame(frameState, layerState) {
|
||||
const layer = this.getLayer();
|
||||
const layerRevision = layer.getRevision();
|
||||
if (this.renderedLayerRevision_ != layerRevision) {
|
||||
this.renderedTiles.length = 0;
|
||||
const renderMode = layer.getRenderMode();
|
||||
if (!this.context && renderMode != VectorTileRenderType.VECTOR) {
|
||||
this.context = createCanvasContext2D();
|
||||
}
|
||||
if (this.context && renderMode == VectorTileRenderType.VECTOR) {
|
||||
this.context = null;
|
||||
}
|
||||
}
|
||||
this.renderedLayerRevision_ = layerRevision;
|
||||
return CanvasTileLayerRenderer.prototype.prepareFrame.apply(this, arguments);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/VectorImageTile} tile Tile.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {module:ol/proj/Projection} projection Projection.
|
||||
* @private
|
||||
*/
|
||||
this.declutterTree_ = layer.getDeclutter() ? rbush(9, undefined) : null;
|
||||
createReplayGroup_(tile, pixelRatio, projection) {
|
||||
const layer = this.getLayer();
|
||||
const revision = layer.getRevision();
|
||||
const renderOrder = /** @type {module:ol/render~OrderFunction} */ (layer.getRenderOrder()) || null;
|
||||
|
||||
const replayState = tile.getReplayState(layer);
|
||||
if (!replayState.dirty && replayState.renderedRevision == revision &&
|
||||
replayState.renderedRenderOrder == renderOrder) {
|
||||
return;
|
||||
}
|
||||
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const sourceTileGrid = source.getTileGrid();
|
||||
const tileGrid = source.getTileGridForProjection(projection);
|
||||
const resolution = tileGrid.getResolution(tile.tileCoord[0]);
|
||||
const tileExtent = tile.extent;
|
||||
|
||||
const zIndexKeys = {};
|
||||
for (let t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[t]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
|
||||
const sourceTileCoord = sourceTile.tileCoord;
|
||||
const sourceTileExtent = sourceTileGrid.getTileCoordExtent(sourceTileCoord);
|
||||
const sharedExtent = getIntersection(tileExtent, sourceTileExtent);
|
||||
const bufferedExtent = equals(sourceTileExtent, sharedExtent) ? null :
|
||||
buffer(sharedExtent, layer.getRenderBuffer() * resolution, this.tmpExtent);
|
||||
const tileProjection = sourceTile.getProjection();
|
||||
let reproject = false;
|
||||
if (!equivalentProjection(projection, tileProjection)) {
|
||||
reproject = true;
|
||||
sourceTile.setProjection(projection);
|
||||
}
|
||||
replayState.dirty = false;
|
||||
const replayGroup = new CanvasReplayGroup(0, sharedExtent, resolution,
|
||||
pixelRatio, source.getOverlaps(), this.declutterTree_, layer.getRenderBuffer());
|
||||
const squaredTolerance = getSquaredRenderTolerance(resolution, pixelRatio);
|
||||
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @this {module:ol/renderer/canvas/VectorTileLayer}
|
||||
*/
|
||||
const render = function(feature) {
|
||||
let styles;
|
||||
const styleFunction = feature.getStyleFunction() || layer.getStyleFunction();
|
||||
if (styleFunction) {
|
||||
styles = styleFunction(feature, resolution);
|
||||
}
|
||||
if (styles) {
|
||||
const dirty = this.renderFeature(feature, squaredTolerance, styles, replayGroup);
|
||||
this.dirty_ = this.dirty_ || dirty;
|
||||
replayState.dirty = replayState.dirty || dirty;
|
||||
}
|
||||
};
|
||||
|
||||
const features = sourceTile.getFeatures();
|
||||
if (renderOrder && renderOrder !== replayState.renderedRenderOrder) {
|
||||
features.sort(renderOrder);
|
||||
}
|
||||
for (let i = 0, ii = features.length; i < ii; ++i) {
|
||||
const feature = features[i];
|
||||
if (reproject) {
|
||||
if (tileProjection.getUnits() == Units.TILE_PIXELS) {
|
||||
// projected tile extent
|
||||
tileProjection.setWorldExtent(sourceTileExtent);
|
||||
// tile extent in tile pixel space
|
||||
tileProjection.setExtent(sourceTile.getExtent());
|
||||
}
|
||||
feature.getGeometry().transform(tileProjection, projection);
|
||||
}
|
||||
if (!bufferedExtent || intersects(bufferedExtent, feature.getGeometry().getExtent())) {
|
||||
render.call(this, feature);
|
||||
}
|
||||
}
|
||||
replayGroup.finish();
|
||||
for (const r in replayGroup.getReplays()) {
|
||||
zIndexKeys[r] = true;
|
||||
}
|
||||
sourceTile.setReplayGroup(layer, tile.tileCoord.toString(), replayGroup);
|
||||
}
|
||||
replayState.renderedRevision = revision;
|
||||
replayState.renderedRenderOrder = renderOrder;
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {boolean}
|
||||
* @inheritDoc
|
||||
*/
|
||||
this.dirty_ = false;
|
||||
forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
const resolution = frameState.viewState.resolution;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
hitTolerance = hitTolerance == undefined ? 0 : hitTolerance;
|
||||
const layer = this.getLayer();
|
||||
/** @type {!Object.<string, boolean>} */
|
||||
const features = {};
|
||||
|
||||
/** @type {Array.<module:ol/VectorImageTile>} */
|
||||
const renderedTiles = this.renderedTiles;
|
||||
|
||||
let bufferedExtent, found;
|
||||
let i, ii, replayGroup;
|
||||
for (i = 0, ii = renderedTiles.length; i < ii; ++i) {
|
||||
const tile = renderedTiles[i];
|
||||
bufferedExtent = buffer(tile.extent, hitTolerance * resolution, bufferedExtent);
|
||||
if (!containsCoordinate(bufferedExtent, coordinate)) {
|
||||
continue;
|
||||
}
|
||||
for (let t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[t]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
replayGroup = sourceTile.getReplayGroup(layer, tile.tileCoord.toString());
|
||||
found = found || replayGroup.forEachFeatureAtCoordinate(coordinate, resolution, rotation, hitTolerance, {},
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @return {?} Callback result.
|
||||
*/
|
||||
function(feature) {
|
||||
const key = getUid(feature).toString();
|
||||
if (!(key in features)) {
|
||||
features[key] = true;
|
||||
return callback.call(thisArg, feature, layer);
|
||||
}
|
||||
}, null);
|
||||
}
|
||||
}
|
||||
return found;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/VectorTile} tile Tile.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @return {module:ol/transform~Transform} transform Transform.
|
||||
* @private
|
||||
* @type {number}
|
||||
*/
|
||||
this.renderedLayerRevision_;
|
||||
getReplayTransform_(tile, frameState) {
|
||||
const layer = this.getLayer();
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const tileGrid = source.getTileGrid();
|
||||
const tileCoord = tile.tileCoord;
|
||||
const tileResolution = tileGrid.getResolution(tileCoord[0]);
|
||||
const viewState = frameState.viewState;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const renderResolution = viewState.resolution / pixelRatio;
|
||||
const tileExtent = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent);
|
||||
const center = viewState.center;
|
||||
const origin = getTopLeft(tileExtent);
|
||||
const size = frameState.size;
|
||||
const offsetX = Math.round(pixelRatio * size[0] / 2);
|
||||
const offsetY = Math.round(pixelRatio * size[1] / 2);
|
||||
return composeTransform(this.tmpTransform_,
|
||||
offsetX, offsetY,
|
||||
tileResolution / renderResolution, tileResolution / renderResolution,
|
||||
viewState.rotation,
|
||||
(origin[0] - center[0]) / tileResolution,
|
||||
(center[1] - origin[1]) / tileResolution);
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {module:ol/transform~Transform}
|
||||
* @param {module:ol/events/Event} event Event.
|
||||
*/
|
||||
this.tmpTransform_ = createTransform();
|
||||
handleFontsChanged_(event) {
|
||||
const layer = this.getLayer();
|
||||
if (layer.getVisible() && this.renderedLayerRevision_ !== undefined) {
|
||||
layer.changed();
|
||||
}
|
||||
}
|
||||
|
||||
// Use lower resolution for pure vector rendering. Closest resolution otherwise.
|
||||
this.zDirection = layer.getRenderMode() == VectorTileRenderType.VECTOR ? 1 : 0;
|
||||
/**
|
||||
* Handle changes in image style state.
|
||||
* @param {module:ol/events/Event} event Image style change event.
|
||||
* @private
|
||||
*/
|
||||
handleStyleImageChange_(event) {
|
||||
this.renderIfReadyAndVisible();
|
||||
}
|
||||
|
||||
listen(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
postCompose(context, frameState, layerState) {
|
||||
const layer = this.getLayer();
|
||||
const renderMode = layer.getRenderMode();
|
||||
if (renderMode != VectorTileRenderType.IMAGE) {
|
||||
const declutterReplays = layer.getDeclutter() ? {} : null;
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const replayTypes = VECTOR_REPLAYS[renderMode];
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const size = frameState.size;
|
||||
let offsetX, offsetY;
|
||||
if (rotation) {
|
||||
offsetX = Math.round(pixelRatio * size[0] / 2);
|
||||
offsetY = Math.round(pixelRatio * size[1] / 2);
|
||||
rotateAtOffset(context, -rotation, offsetX, offsetY);
|
||||
}
|
||||
if (declutterReplays) {
|
||||
this.declutterTree_.clear();
|
||||
}
|
||||
const tiles = this.renderedTiles;
|
||||
const tileGrid = source.getTileGridForProjection(frameState.viewState.projection);
|
||||
const clips = [];
|
||||
const zs = [];
|
||||
for (let i = tiles.length - 1; i >= 0; --i) {
|
||||
const tile = /** @type {module:ol/VectorImageTile} */ (tiles[i]);
|
||||
if (tile.getState() == TileState.ABORT) {
|
||||
continue;
|
||||
}
|
||||
const tileCoord = tile.tileCoord;
|
||||
const worldOffset = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent)[0] - tile.extent[0];
|
||||
let transform = undefined;
|
||||
for (let t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[t]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
const replayGroup = sourceTile.getReplayGroup(layer, tileCoord.toString());
|
||||
if (!replayGroup || !replayGroup.hasReplays(replayTypes)) {
|
||||
// sourceTile was not yet loaded when this.createReplayGroup_() was
|
||||
// called, or it has no replays of the types we want to render
|
||||
continue;
|
||||
}
|
||||
if (!transform) {
|
||||
transform = this.getTransform(frameState, worldOffset);
|
||||
}
|
||||
const currentZ = sourceTile.tileCoord[0];
|
||||
const currentClip = replayGroup.getClipCoords(transform);
|
||||
context.save();
|
||||
context.globalAlpha = layerState.opacity;
|
||||
// Create a clip mask for regions in this low resolution tile that are
|
||||
// already filled by a higher resolution tile
|
||||
for (let j = 0, jj = clips.length; j < jj; ++j) {
|
||||
const clip = clips[j];
|
||||
if (currentZ < zs[j]) {
|
||||
context.beginPath();
|
||||
// counter-clockwise (outer ring) for current tile
|
||||
context.moveTo(currentClip[0], currentClip[1]);
|
||||
context.lineTo(currentClip[2], currentClip[3]);
|
||||
context.lineTo(currentClip[4], currentClip[5]);
|
||||
context.lineTo(currentClip[6], currentClip[7]);
|
||||
// clockwise (inner ring) for higher resolution tile
|
||||
context.moveTo(clip[6], clip[7]);
|
||||
context.lineTo(clip[4], clip[5]);
|
||||
context.lineTo(clip[2], clip[3]);
|
||||
context.lineTo(clip[0], clip[1]);
|
||||
context.clip();
|
||||
}
|
||||
}
|
||||
replayGroup.replay(context, transform, rotation, {}, replayTypes, declutterReplays);
|
||||
context.restore();
|
||||
clips.push(currentClip);
|
||||
zs.push(currentZ);
|
||||
}
|
||||
}
|
||||
if (declutterReplays) {
|
||||
replayDeclutter(declutterReplays, context, rotation);
|
||||
}
|
||||
if (rotation) {
|
||||
rotateAtOffset(context, rotation,
|
||||
/** @type {number} */ (offsetX), /** @type {number} */ (offsetY));
|
||||
}
|
||||
}
|
||||
CanvasTileLayerRenderer.prototype.postCompose.apply(this, arguments);
|
||||
}
|
||||
|
||||
};
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @param {number} squaredTolerance Squared tolerance.
|
||||
* @param {(module:ol/style/Style|Array.<module:ol/style/Style>)} styles The style or array of styles.
|
||||
* @param {module:ol/render/canvas/ReplayGroup} replayGroup Replay group.
|
||||
* @return {boolean} `true` if an image is loading.
|
||||
*/
|
||||
renderFeature(feature, squaredTolerance, styles, replayGroup) {
|
||||
if (!styles) {
|
||||
return false;
|
||||
}
|
||||
let loading = false;
|
||||
if (Array.isArray(styles)) {
|
||||
for (let i = 0, ii = styles.length; i < ii; ++i) {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles[i], squaredTolerance,
|
||||
this.handleStyleImageChange_, this) || loading;
|
||||
}
|
||||
} else {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles, squaredTolerance,
|
||||
this.handleStyleImageChange_, this);
|
||||
}
|
||||
return loading;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {module:ol/VectorImageTile} tile Tile.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {module:ol/proj/Projection} projection Projection.
|
||||
* @private
|
||||
*/
|
||||
renderTileImage_(tile, pixelRatio, projection) {
|
||||
const layer = this.getLayer();
|
||||
const replayState = tile.getReplayState(layer);
|
||||
const revision = layer.getRevision();
|
||||
const replays = IMAGE_REPLAYS[layer.getRenderMode()];
|
||||
if (replays && replayState.renderedTileRevision !== revision) {
|
||||
replayState.renderedTileRevision = revision;
|
||||
const tileCoord = tile.wrappedTileCoord;
|
||||
const z = tileCoord[0];
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const tileGrid = source.getTileGridForProjection(projection);
|
||||
const resolution = tileGrid.getResolution(z);
|
||||
const context = tile.getContext(layer);
|
||||
const size = source.getTilePixelSize(z, pixelRatio, projection);
|
||||
context.canvas.width = size[0];
|
||||
context.canvas.height = size[1];
|
||||
const tileExtent = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent);
|
||||
for (let i = 0, ii = tile.tileKeys.length; i < ii; ++i) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[i]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
const pixelScale = pixelRatio / resolution;
|
||||
const transform = resetTransform(this.tmpTransform_);
|
||||
scaleTransform(transform, pixelScale, -pixelScale);
|
||||
translateTransform(transform, -tileExtent[0], -tileExtent[3]);
|
||||
const replayGroup = sourceTile.getReplayGroup(layer, tile.tileCoord.toString());
|
||||
replayGroup.replay(context, transform, 0, {}, replays);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inherits(CanvasVectorTileLayerRenderer, CanvasTileLayerRenderer);
|
||||
|
||||
@@ -117,394 +498,4 @@ CanvasVectorTileLayerRenderer['create'] = function(mapRenderer, layer) {
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.disposeInternal = function() {
|
||||
unlisten(labelCache, EventType.CLEAR, this.handleFontsChanged_, this);
|
||||
CanvasTileLayerRenderer.prototype.disposeInternal.call(this);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.getTile = function(z, x, y, pixelRatio, projection) {
|
||||
const tile = CanvasTileLayerRenderer.prototype.getTile.call(this, z, x, y, pixelRatio, projection);
|
||||
if (tile.getState() === TileState.LOADED) {
|
||||
this.createReplayGroup_(tile, pixelRatio, projection);
|
||||
if (this.context) {
|
||||
this.renderTileImage_(tile, pixelRatio, projection);
|
||||
}
|
||||
}
|
||||
return tile;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.prepareFrame = function(frameState, layerState) {
|
||||
const layer = this.getLayer();
|
||||
const layerRevision = layer.getRevision();
|
||||
if (this.renderedLayerRevision_ != layerRevision) {
|
||||
this.renderedTiles.length = 0;
|
||||
const renderMode = layer.getRenderMode();
|
||||
if (!this.context && renderMode != VectorTileRenderType.VECTOR) {
|
||||
this.context = createCanvasContext2D();
|
||||
}
|
||||
if (this.context && renderMode == VectorTileRenderType.VECTOR) {
|
||||
this.context = null;
|
||||
}
|
||||
}
|
||||
this.renderedLayerRevision_ = layerRevision;
|
||||
return CanvasTileLayerRenderer.prototype.prepareFrame.apply(this, arguments);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/VectorImageTile} tile Tile.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {module:ol/proj/Projection} projection Projection.
|
||||
* @private
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.createReplayGroup_ = function(tile, pixelRatio, projection) {
|
||||
const layer = this.getLayer();
|
||||
const revision = layer.getRevision();
|
||||
const renderOrder = /** @type {module:ol/render~OrderFunction} */ (layer.getRenderOrder()) || null;
|
||||
|
||||
const replayState = tile.getReplayState(layer);
|
||||
if (!replayState.dirty && replayState.renderedRevision == revision &&
|
||||
replayState.renderedRenderOrder == renderOrder) {
|
||||
return;
|
||||
}
|
||||
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const sourceTileGrid = source.getTileGrid();
|
||||
const tileGrid = source.getTileGridForProjection(projection);
|
||||
const resolution = tileGrid.getResolution(tile.tileCoord[0]);
|
||||
const tileExtent = tile.extent;
|
||||
|
||||
const zIndexKeys = {};
|
||||
for (let t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[t]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
|
||||
const sourceTileCoord = sourceTile.tileCoord;
|
||||
const sourceTileExtent = sourceTileGrid.getTileCoordExtent(sourceTileCoord);
|
||||
const sharedExtent = getIntersection(tileExtent, sourceTileExtent);
|
||||
const bufferedExtent = equals(sourceTileExtent, sharedExtent) ? null :
|
||||
buffer(sharedExtent, layer.getRenderBuffer() * resolution, this.tmpExtent);
|
||||
const tileProjection = sourceTile.getProjection();
|
||||
let reproject = false;
|
||||
if (!equivalentProjection(projection, tileProjection)) {
|
||||
reproject = true;
|
||||
sourceTile.setProjection(projection);
|
||||
}
|
||||
replayState.dirty = false;
|
||||
const replayGroup = new CanvasReplayGroup(0, sharedExtent, resolution,
|
||||
pixelRatio, source.getOverlaps(), this.declutterTree_, layer.getRenderBuffer());
|
||||
const squaredTolerance = getSquaredRenderTolerance(resolution, pixelRatio);
|
||||
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @this {module:ol/renderer/canvas/VectorTileLayer}
|
||||
*/
|
||||
const render = function(feature) {
|
||||
let styles;
|
||||
const styleFunction = feature.getStyleFunction() || layer.getStyleFunction();
|
||||
if (styleFunction) {
|
||||
styles = styleFunction(feature, resolution);
|
||||
}
|
||||
if (styles) {
|
||||
const dirty = this.renderFeature(feature, squaredTolerance, styles, replayGroup);
|
||||
this.dirty_ = this.dirty_ || dirty;
|
||||
replayState.dirty = replayState.dirty || dirty;
|
||||
}
|
||||
};
|
||||
|
||||
const features = sourceTile.getFeatures();
|
||||
if (renderOrder && renderOrder !== replayState.renderedRenderOrder) {
|
||||
features.sort(renderOrder);
|
||||
}
|
||||
for (let i = 0, ii = features.length; i < ii; ++i) {
|
||||
const feature = features[i];
|
||||
if (reproject) {
|
||||
if (tileProjection.getUnits() == Units.TILE_PIXELS) {
|
||||
// projected tile extent
|
||||
tileProjection.setWorldExtent(sourceTileExtent);
|
||||
// tile extent in tile pixel space
|
||||
tileProjection.setExtent(sourceTile.getExtent());
|
||||
}
|
||||
feature.getGeometry().transform(tileProjection, projection);
|
||||
}
|
||||
if (!bufferedExtent || intersects(bufferedExtent, feature.getGeometry().getExtent())) {
|
||||
render.call(this, feature);
|
||||
}
|
||||
}
|
||||
replayGroup.finish();
|
||||
for (const r in replayGroup.getReplays()) {
|
||||
zIndexKeys[r] = true;
|
||||
}
|
||||
sourceTile.setReplayGroup(layer, tile.tileCoord.toString(), replayGroup);
|
||||
}
|
||||
replayState.renderedRevision = revision;
|
||||
replayState.renderedRenderOrder = renderOrder;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.forEachFeatureAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
|
||||
const resolution = frameState.viewState.resolution;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
hitTolerance = hitTolerance == undefined ? 0 : hitTolerance;
|
||||
const layer = this.getLayer();
|
||||
/** @type {!Object.<string, boolean>} */
|
||||
const features = {};
|
||||
|
||||
/** @type {Array.<module:ol/VectorImageTile>} */
|
||||
const renderedTiles = this.renderedTiles;
|
||||
|
||||
let bufferedExtent, found;
|
||||
let i, ii, replayGroup;
|
||||
for (i = 0, ii = renderedTiles.length; i < ii; ++i) {
|
||||
const tile = renderedTiles[i];
|
||||
bufferedExtent = buffer(tile.extent, hitTolerance * resolution, bufferedExtent);
|
||||
if (!containsCoordinate(bufferedExtent, coordinate)) {
|
||||
continue;
|
||||
}
|
||||
for (let t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[t]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
replayGroup = sourceTile.getReplayGroup(layer, tile.tileCoord.toString());
|
||||
found = found || replayGroup.forEachFeatureAtCoordinate(coordinate, resolution, rotation, hitTolerance, {},
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @return {?} Callback result.
|
||||
*/
|
||||
function(feature) {
|
||||
const key = getUid(feature).toString();
|
||||
if (!(key in features)) {
|
||||
features[key] = true;
|
||||
return callback.call(thisArg, feature, layer);
|
||||
}
|
||||
}, null);
|
||||
}
|
||||
}
|
||||
return found;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/VectorTile} tile Tile.
|
||||
* @param {module:ol/PluggableMap~FrameState} frameState Frame state.
|
||||
* @return {module:ol/transform~Transform} transform Transform.
|
||||
* @private
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.getReplayTransform_ = function(tile, frameState) {
|
||||
const layer = this.getLayer();
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const tileGrid = source.getTileGrid();
|
||||
const tileCoord = tile.tileCoord;
|
||||
const tileResolution = tileGrid.getResolution(tileCoord[0]);
|
||||
const viewState = frameState.viewState;
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const renderResolution = viewState.resolution / pixelRatio;
|
||||
const tileExtent = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent);
|
||||
const center = viewState.center;
|
||||
const origin = getTopLeft(tileExtent);
|
||||
const size = frameState.size;
|
||||
const offsetX = Math.round(pixelRatio * size[0] / 2);
|
||||
const offsetY = Math.round(pixelRatio * size[1] / 2);
|
||||
return composeTransform(this.tmpTransform_,
|
||||
offsetX, offsetY,
|
||||
tileResolution / renderResolution, tileResolution / renderResolution,
|
||||
viewState.rotation,
|
||||
(origin[0] - center[0]) / tileResolution,
|
||||
(center[1] - origin[1]) / tileResolution);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/events/Event} event Event.
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.handleFontsChanged_ = function(event) {
|
||||
const layer = this.getLayer();
|
||||
if (layer.getVisible() && this.renderedLayerRevision_ !== undefined) {
|
||||
layer.changed();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Handle changes in image style state.
|
||||
* @param {module:ol/events/Event} event Image style change event.
|
||||
* @private
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.handleStyleImageChange_ = function(event) {
|
||||
this.renderIfReadyAndVisible();
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @inheritDoc
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.postCompose = function(context, frameState, layerState) {
|
||||
const layer = this.getLayer();
|
||||
const renderMode = layer.getRenderMode();
|
||||
if (renderMode != VectorTileRenderType.IMAGE) {
|
||||
const declutterReplays = layer.getDeclutter() ? {} : null;
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const replayTypes = VECTOR_REPLAYS[renderMode];
|
||||
const pixelRatio = frameState.pixelRatio;
|
||||
const rotation = frameState.viewState.rotation;
|
||||
const size = frameState.size;
|
||||
let offsetX, offsetY;
|
||||
if (rotation) {
|
||||
offsetX = Math.round(pixelRatio * size[0] / 2);
|
||||
offsetY = Math.round(pixelRatio * size[1] / 2);
|
||||
rotateAtOffset(context, -rotation, offsetX, offsetY);
|
||||
}
|
||||
if (declutterReplays) {
|
||||
this.declutterTree_.clear();
|
||||
}
|
||||
const tiles = this.renderedTiles;
|
||||
const tileGrid = source.getTileGridForProjection(frameState.viewState.projection);
|
||||
const clips = [];
|
||||
const zs = [];
|
||||
for (let i = tiles.length - 1; i >= 0; --i) {
|
||||
const tile = /** @type {module:ol/VectorImageTile} */ (tiles[i]);
|
||||
if (tile.getState() == TileState.ABORT) {
|
||||
continue;
|
||||
}
|
||||
const tileCoord = tile.tileCoord;
|
||||
const worldOffset = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent)[0] - tile.extent[0];
|
||||
let transform = undefined;
|
||||
for (let t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[t]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
const replayGroup = sourceTile.getReplayGroup(layer, tileCoord.toString());
|
||||
if (!replayGroup || !replayGroup.hasReplays(replayTypes)) {
|
||||
// sourceTile was not yet loaded when this.createReplayGroup_() was
|
||||
// called, or it has no replays of the types we want to render
|
||||
continue;
|
||||
}
|
||||
if (!transform) {
|
||||
transform = this.getTransform(frameState, worldOffset);
|
||||
}
|
||||
const currentZ = sourceTile.tileCoord[0];
|
||||
const currentClip = replayGroup.getClipCoords(transform);
|
||||
context.save();
|
||||
context.globalAlpha = layerState.opacity;
|
||||
// Create a clip mask for regions in this low resolution tile that are
|
||||
// already filled by a higher resolution tile
|
||||
for (let j = 0, jj = clips.length; j < jj; ++j) {
|
||||
const clip = clips[j];
|
||||
if (currentZ < zs[j]) {
|
||||
context.beginPath();
|
||||
// counter-clockwise (outer ring) for current tile
|
||||
context.moveTo(currentClip[0], currentClip[1]);
|
||||
context.lineTo(currentClip[2], currentClip[3]);
|
||||
context.lineTo(currentClip[4], currentClip[5]);
|
||||
context.lineTo(currentClip[6], currentClip[7]);
|
||||
// clockwise (inner ring) for higher resolution tile
|
||||
context.moveTo(clip[6], clip[7]);
|
||||
context.lineTo(clip[4], clip[5]);
|
||||
context.lineTo(clip[2], clip[3]);
|
||||
context.lineTo(clip[0], clip[1]);
|
||||
context.clip();
|
||||
}
|
||||
}
|
||||
replayGroup.replay(context, transform, rotation, {}, replayTypes, declutterReplays);
|
||||
context.restore();
|
||||
clips.push(currentClip);
|
||||
zs.push(currentZ);
|
||||
}
|
||||
}
|
||||
if (declutterReplays) {
|
||||
replayDeclutter(declutterReplays, context, rotation);
|
||||
}
|
||||
if (rotation) {
|
||||
rotateAtOffset(context, rotation,
|
||||
/** @type {number} */ (offsetX), /** @type {number} */ (offsetY));
|
||||
}
|
||||
}
|
||||
CanvasTileLayerRenderer.prototype.postCompose.apply(this, arguments);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/Feature|module:ol/render/Feature} feature Feature.
|
||||
* @param {number} squaredTolerance Squared tolerance.
|
||||
* @param {(module:ol/style/Style|Array.<module:ol/style/Style>)} styles The style or array of styles.
|
||||
* @param {module:ol/render/canvas/ReplayGroup} replayGroup Replay group.
|
||||
* @return {boolean} `true` if an image is loading.
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.renderFeature = function(feature, squaredTolerance, styles, replayGroup) {
|
||||
if (!styles) {
|
||||
return false;
|
||||
}
|
||||
let loading = false;
|
||||
if (Array.isArray(styles)) {
|
||||
for (let i = 0, ii = styles.length; i < ii; ++i) {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles[i], squaredTolerance,
|
||||
this.handleStyleImageChange_, this) || loading;
|
||||
}
|
||||
} else {
|
||||
loading = renderFeature(
|
||||
replayGroup, feature, styles, squaredTolerance,
|
||||
this.handleStyleImageChange_, this);
|
||||
}
|
||||
return loading;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {module:ol/VectorImageTile} tile Tile.
|
||||
* @param {number} pixelRatio Pixel ratio.
|
||||
* @param {module:ol/proj/Projection} projection Projection.
|
||||
* @private
|
||||
*/
|
||||
CanvasVectorTileLayerRenderer.prototype.renderTileImage_ = function(
|
||||
tile, pixelRatio, projection) {
|
||||
const layer = this.getLayer();
|
||||
const replayState = tile.getReplayState(layer);
|
||||
const revision = layer.getRevision();
|
||||
const replays = IMAGE_REPLAYS[layer.getRenderMode()];
|
||||
if (replays && replayState.renderedTileRevision !== revision) {
|
||||
replayState.renderedTileRevision = revision;
|
||||
const tileCoord = tile.wrappedTileCoord;
|
||||
const z = tileCoord[0];
|
||||
const source = /** @type {module:ol/source/VectorTile} */ (layer.getSource());
|
||||
const tileGrid = source.getTileGridForProjection(projection);
|
||||
const resolution = tileGrid.getResolution(z);
|
||||
const context = tile.getContext(layer);
|
||||
const size = source.getTilePixelSize(z, pixelRatio, projection);
|
||||
context.canvas.width = size[0];
|
||||
context.canvas.height = size[1];
|
||||
const tileExtent = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent);
|
||||
for (let i = 0, ii = tile.tileKeys.length; i < ii; ++i) {
|
||||
const sourceTile = tile.getTile(tile.tileKeys[i]);
|
||||
if (sourceTile.getState() != TileState.LOADED) {
|
||||
continue;
|
||||
}
|
||||
const pixelScale = pixelRatio / resolution;
|
||||
const transform = resetTransform(this.tmpTransform_);
|
||||
scaleTransform(transform, pixelScale, -pixelScale);
|
||||
translateTransform(transform, -tileExtent[0], -tileExtent[3]);
|
||||
const replayGroup = sourceTile.getReplayGroup(layer, tile.tileCoord.toString());
|
||||
replayGroup.replay(context, transform, 0, {}, replays);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
export default CanvasVectorTileLayerRenderer;
|
||||
|
||||
Reference in New Issue
Block a user