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Clean up DOM renderer code for untested minor performance advantages

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This commit is contained in:
Tom Payne
2013-01-12 01:12:27 +01:00
parent fca7472506
commit 82fc5c6c9d
1 changed files with 8 additions and 10 deletions
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18
src/ol/renderer/dom/domtilelayerrenderer.js
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@@ -70,26 +70,19 @@ ol.renderer.dom.TileLayer.prototype.getTileLayer = function() {
ol.renderer.dom.TileLayer.prototype.renderFrame =
function(frameState, layerState) {
var view2DState = frameState.view2DState;
var tileLayer = this.getTileLayer();
if (!layerState.visible) {
if (this.renderedVisible_) {
goog.style.showElement(this.target, false);
this.renderedVisible_ = false;
}
return false;
}
if (layerState.opacity != this.renderedOpacity_) {
goog.style.setOpacity(this.target, layerState.opacity);
this.renderedOpacity_ = layerState.opacity;
return;
}
var tileLayer = this.getTileLayer();
var tileSource = tileLayer.getTileSource();
var tileGrid = tileSource.getTileGrid();
var view2DState = frameState.view2DState;
var z = tileGrid.getZForResolution(view2DState.resolution);
/** @type {Object.<number, Object.<string, ol.Tile>>} */
@@ -219,6 +212,11 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
}
}
if (layerState.opacity != this.renderedOpacity_) {
goog.style.setOpacity(this.target, layerState.opacity);
this.renderedOpacity_ = layerState.opacity;
}
if (layerState.visible && !this.renderedVisible_) {
goog.style.showElement(this.target, true);
this.renderedVisible_ = true;