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Refactor attribution control

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This commit is contained in:
Tom Payne
2013-01-16 16:34:31 +01:00
parent 41ccb4dfcd
commit 9fbabc3696
10 changed files with 224 additions and 545 deletions
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28
src/ol/source/bingmapssource.js
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@@ -5,7 +5,7 @@ goog.require('goog.Uri');
goog.require('goog.events');
goog.require('goog.events.EventType');
goog.require('goog.net.Jsonp');
goog.require('ol.TileCoverageArea');
goog.require('ol.TileRange');
goog.require('ol.source.ImageTileSource');
goog.require('ol.tilegrid.XYZ');
@@ -118,21 +118,35 @@ ol.source.BingMaps.prototype.handleImageryMetadataResponse =
};
})));
var projection = ol.Projection.getFromCode('EPSG:4326');
var transform = ol.Projection.getTransform(
ol.Projection.getFromCode('EPSG:4326'), this.getProjection());
var attributions = goog.array.map(
resource.imageryProviders,
function(imageryProvider) {
var html = imageryProvider.attribution;
var coverageAreas = goog.array.map(
/** @type {Object.<string, Array.<ol.TileRange>>} */
var tileRanges = {};
goog.array.forEach(
imageryProvider.coverageAreas,
function(coverageArea) {
var bbox = coverageArea.bbox;
var extent = new ol.Extent(bbox[1], bbox[0], bbox[3], bbox[2]);
var minZ = coverageArea.zoomMin;
var maxZ = coverageArea.zoomMax;
return new ol.TileCoverageArea(tileGrid, extent, minZ, maxZ);
var bbox = coverageArea.bbox;
var epsg4326Extent =
new ol.Extent(bbox[1], bbox[0], bbox[3], bbox[2]);
var extent = epsg4326Extent.transform(transform);
var tileRange, z, zKey;
for (z = minZ; z <= maxZ; ++z) {
zKey = z.toString();
tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
if (zKey in tileRanges) {
tileRanges[zKey].push(tileRange);
} else {
tileRanges[zKey] = [tileRange];
}
}
});
return new ol.Attribution(html, coverageAreas, projection);
return new ol.Attribution(html, tileRanges);
});
this.setAttributions(attributions);