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Composite renderer

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This commit is contained in:
Tim Schaub
2018-11-10 17:39:00 -06:00
parent fc6882f146
commit 43ed2c1764
5 changed files with 400 additions and 11 deletions
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28
src/ol/renderer/canvas/Layer.js
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@@ -136,6 +136,25 @@ class CanvasLayerRenderer extends LayerRenderer {
this.dispatchComposeEvent_(RenderEventType.PRECOMPOSE, context, frameState, opt_transform);
}
/**
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
* @param {import("../../transform.js").Transform=} opt_transform Transform.
* @protected
*/
preRender(frameState, opt_transform) {
// TODO: pre-render event
}
/**
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
* @param {import("../../layer/Layer.js").State} layerState Layer state.
* @param {import("../../transform.js").Transform=} opt_transform Transform.
* @protected
*/
postRender(frameState, layerState, opt_transform) {
// TODO: pre-render event
}
/**
* @param {CanvasRenderingContext2D} context Context.
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
@@ -175,15 +194,6 @@ class CanvasLayerRenderer extends LayerRenderer {
abstract();
}
/**
* @abstract
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
* @param {import("../../layer/Layer.js").State} layerState Layer state.
* @return {boolean} whether composeFrame should be called.
*/
prepareFrame(frameState, layerState) {
return abstract();
}
}
export default CanvasLayerRenderer;