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Fire precompose events from layers

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This commit is contained in:
Éric Lemoine
2013-11-13 09:02:59 +01:00
committed by Tom Payne
parent daf4231d00
commit 2073d78582
2 changed files with 41 additions and 11 deletions
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49
src/ol/renderer/canvas/canvaslayerrenderer.js
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@@ -37,6 +37,8 @@ goog.inherits(ol.renderer.canvas.Layer, ol.renderer.Layer);
ol.renderer.canvas.Layer.prototype.composeFrame =
function(frameState, layerState, context) {
this.dispatchPreComposeEvent(context, frameState);
var image = this.getImage();
if (!goog.isNull(image)) {
var imageTransform = this.getImageTransform();
@@ -69,6 +71,28 @@ ol.renderer.canvas.Layer.prototype.composeFrame =
};
/**
* @param {ol.render.EventType} type Event type.
* @param {CanvasRenderingContext2D} context Context.
* @param {ol.FrameState} frameState Frame state.
* @param {goog.vec.Mat4.AnyType=} opt_transform Transform.
* @private
*/
ol.renderer.canvas.Layer.prototype.dispatchComposeEvent_ =
function(type, context, frameState, opt_transform) {
var layer = this.getLayer();
if (layer.hasListener(type)) {
var transform = goog.isDef(opt_transform) ?
opt_transform : this.getTransform(frameState);
var render = new ol.render.canvas.Immediate(context, frameState.extent,
transform);
var composeEvent = new ol.render.Event(type, layer, render, frameState,
context, null);
layer.dispatchEvent(composeEvent);
}
};
/**
* @param {CanvasRenderingContext2D} context Context.
* @param {ol.FrameState} frameState Frame state.
@@ -77,16 +101,21 @@ ol.renderer.canvas.Layer.prototype.composeFrame =
*/
ol.renderer.canvas.Layer.prototype.dispatchPostComposeEvent =
function(context, frameState, opt_transform) {
var layer = this.getLayer();
if (layer.hasListener(ol.render.EventType.POSTCOMPOSE)) {
var transform = goog.isDef(opt_transform) ?
opt_transform : this.getTransform(frameState);
var render = new ol.render.canvas.Immediate(context, frameState.extent,
transform);
var postComposeEvent = new ol.render.Event(ol.render.EventType.POSTCOMPOSE,
layer, render, frameState, context, null);
layer.dispatchEvent(postComposeEvent);
}
this.dispatchComposeEvent_(ol.render.EventType.POSTCOMPOSE, context,
frameState, opt_transform);
};
/**
* @param {CanvasRenderingContext2D} context Context.
* @param {ol.FrameState} frameState Frame state.
* @param {goog.vec.Mat4.AnyType=} opt_transform Transform.
* @protected
*/
ol.renderer.canvas.Layer.prototype.dispatchPreComposeEvent =
function(context, frameState, opt_transform) {
this.dispatchComposeEvent_(ol.render.EventType.PRECOMPOSE, context,
frameState, opt_transform);
};