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Add tests for initSingleTile function, which is where all the important singleTile logic is

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This commit is contained in:
Matt Priour
2012-03-08 16:20:23 -06:00
parent fe2d80973a
commit 9d0dd67843
2 changed files with 54 additions and 16 deletions
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26
lib/OpenLayers/Layer/Grid.js
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@@ -718,19 +718,18 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
*/
initSingleTile: function(bounds) {
this.clearTileQueue();
//determine if a maxExtent restriction exists
var maxExt = this.maxExtent || this.map.getMaxExtent() || this.map.maxExtent;
//determine new tile bounds
var tileWidth, tileHeight, tileBounds;
var center = bounds.getCenterLonLat();
//adjust tile bounds to fit in maxExtent restriction
//if it is an overlay and there is a maxExtent restriction
if(this != this.map.baseLayer && maxExt && bounds.containsBounds(maxExt)) {
bounds.bottom = Math.max(maxExt.bottom, bounds.bottom);
bounds.top = Math.min(maxExt.top, bounds.top);
bounds.left = Math.max(maxExt.left, bounds.left);
bounds.right = Math.min(maxExt.right, bounds.right);
//if there is a maxExtent restriction
if(this.maxExtent && bounds.containsBounds(this.maxExtent, true)) {
bounds.bottom = Math.max(this.maxExtent.bottom, bounds.bottom);
bounds.top = Math.min(this.maxExtent.top, bounds.top);
bounds.left = Math.max(this.maxExtent.left, bounds.left);
bounds.right = Math.min(this.maxExtent.right, bounds.right);
tileWidth = bounds.getWidth();
tileHeight = bounds.getHeight();
tileBounds = bounds;
@@ -742,10 +741,10 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
lon : tileBounds.right,
lat : tileBounds.top
});
this.tileSize = {
h : Math.abs(trPx.y - blPx.y),
w : Math.abs(trPx.x - blPx.x)
};
this.tileSize = new OpenLayers.Size(
Math.abs(trPx.x - blPx.x),
Math.abs(trPx.y - blPx.y)
);
this._resetTileSize = true;
}
else {
@@ -760,6 +759,7 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
);
if(this._resetTileSize === true) {
this.setTileSize();
delete this._resetTileSize;
}
}
var px = this.map.getLayerPxFromLonLat({