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Extend goog.events.Event for custom vector layer events

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Vector events include features and extents.  In the case of feature change events, the extents array will include old and new extents for features with modified geometries.w
This commit is contained in:
Tim Schaub
2013-10-03 11:25:30 -06:00
parent 97b56add70
commit 64dd5cfc1f
2 changed files with 63 additions and 50 deletions
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28
src/ol/renderer/canvas/canvasvectorlayerrenderer.js
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@@ -13,7 +13,7 @@ goog.require('ol.ViewHint');
goog.require('ol.extent');
goog.require('ol.geom.GeometryType');
goog.require('ol.layer.Vector');
goog.require('ol.layer.VectorLayerEventType');
goog.require('ol.layer.VectorEventType');
goog.require('ol.layer.VectorLayerRenderIntent');
goog.require('ol.renderer.canvas.Layer');
goog.require('ol.renderer.canvas.Vector');
@@ -88,10 +88,10 @@ ol.renderer.canvas.VectorLayer = function(mapRenderer, layer) {
this.tileCache_ = new ol.TileCache(
ol.renderer.canvas.VectorLayer.TILECACHE_SIZE);
goog.events.listen(layer, [
ol.layer.VectorLayerEventType.ADD,
ol.layer.VectorLayerEventType.CHANGE,
ol.layer.VectorLayerEventType.REMOVE,
ol.layer.VectorLayerEventType.INTENTCHANGE
ol.layer.VectorEventType.ADD,
ol.layer.VectorEventType.CHANGE,
ol.layer.VectorEventType.REMOVE,
ol.layer.VectorEventType.INTENTCHANGE
],
this.handleLayerChange_, false, this);
@@ -163,14 +163,18 @@ goog.inherits(ol.renderer.canvas.VectorLayer, ol.renderer.canvas.Layer);
/**
* Get rid cached tiles. If the optional extent is provided, only tiles that
* intersect that extent will be removed.
* @param {ol.Extent=} opt_extent extent Expire tiles within this extent only.
* @param {Array.<ol.Extent>} extents extent Expire tiles within the provided
* extents. If the array is empty, all tiles will be expired.
* @private
*/
ol.renderer.canvas.VectorLayer.prototype.expireTiles_ = function(opt_extent) {
ol.renderer.canvas.VectorLayer.prototype.expireTiles_ = function(extents) {
var tileCache = this.tileCache_;
if (goog.isDef(opt_extent)) {
var tileRange = this.tileGrid_.getTileRangeForExtentAndZ(opt_extent, 0);
tileCache.pruneTileRange(tileRange);
var length = extents.length;
if (length > 0) {
for (var i = 0; i < length; ++i) {
tileCache.pruneTileRange(
this.tileGrid_.getTileRangeForExtentAndZ(extents[i], 0));
}
} else {
tileCache.clear();
}
@@ -307,11 +311,11 @@ ol.renderer.canvas.VectorLayer.prototype.getFeaturesForPixel =
/**
* @param {ol.layer.VectorLayerEventObject} event Layer change event.
* @param {ol.layer.VectorEvent} event Vector layer event.
* @private
*/
ol.renderer.canvas.VectorLayer.prototype.handleLayerChange_ = function(event) {
this.expireTiles_(event.extent);
this.expireTiles_(event.extents);
this.requestMapRenderFrame_();
};