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New render event API (non functional yet)

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This commit is contained in:
ahocevar
2018-11-15 13:22:06 +01:00
committed by Tim Schaub
parent f90efac131
commit 6c0b3f773b
6 changed files with 58 additions and 22 deletions
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12
src/ol/renderer/canvas/Layer.js
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@@ -83,25 +83,21 @@ class CanvasLayerRenderer extends LayerRenderer {
* @param {import("../../render/EventType.js").default} type Event type.
* @param {CanvasRenderingContext2D} context Context.
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
* @param {import("../../transform.js").Transform=} opt_transform Transform.
* @param {import("../../transform.js").Transform} pixelTransform Transform.
* @private
*/
dispatchComposeEvent_(type, context, frameState, opt_transform) {
dispatchComposeEvent_(type, context, frameState, pixelTransform) {
const layer = this.getLayer();
if (layer.hasListener(type)) {
const halfWidth = (frameState.size[0] * frameState.pixelRatio) / 2;
const halfHeight = (frameState.size[1] * frameState.pixelRatio) / 2;
const rotation = frameState.viewState.rotation;
rotateAtOffset(context, -rotation, halfWidth, halfHeight);
const transform = opt_transform !== undefined ?
opt_transform : this.getTransform(frameState, 0);
const render = new CanvasImmediateRenderer(
context, frameState.pixelRatio, frameState.extent, transform,
context, frameState.pixelRatio, frameState.extent, pixelTransform,
frameState.viewState.rotation);
const composeEvent = new RenderEvent(type, render, frameState,
const composeEvent = new RenderEvent(type, pixelTransform, frameState,
context, null);
layer.dispatchEvent(composeEvent);
rotateAtOffset(context, rotation, halfWidth, halfHeight);
}
}