public MapRectangle GetUserBoundingBox(MapTileSourceFactory mapTileSourceFactory)
{
WarpedMapTileSource warpedMapTileSource = null;
try
{
warpedMapTileSource = mapTileSourceFactory.CreateWarpedSource(this);
}
catch (InsufficientCorrespondencesException)
{
}
if (warpedMapTileSource == null)
{
return(null);
}
Present present = warpedMapTileSource.GetUserBounds(null, FutureFeatures.Cached).Realize("SourceMap.AutoSelectMaxZoom");
if (!(present is BoundsPresent))
{
return(null);
}
BoundsPresent boundsPresent = (BoundsPresent)present;
MapRectangle boundingBox = boundsPresent.GetRenderRegion().GetBoundingBox();
return(boundingBox.ClipTo(CoordinateSystemUtilities.GetRangeAsMapRectangle(MercatorCoordinateSystem.theInstance)));
}
private void StoreRenderRegion(Present present)
{
if (this.renderRegion == null && present is BoundsPresent)
{
BoundsPresent boundsPresent = (BoundsPresent)present;
this.renderRegion = boundsPresent.GetRenderRegion().Copy(this.dirtyEvent);
this.boundsChangedEvent.SetDirty();
}
}
internal bool AccumulateBoundingBox(SourceMap sourceMap, MapTileSourceFactory mapTileSourceFactory, ref MapRectangle boundingBox)
{
bool result;
try
{
WarpedMapTileSource warpedMapTileSource = mapTileSourceFactory.CreateWarpedSource(sourceMap);
BoundsPresent boundsPresent = (BoundsPresent)warpedMapTileSource.GetUserBounds(null, FutureFeatures.Cached).Realize("CrunchedFile.AccumulateBoundingBox");
boundsPresent.GetRenderRegion().AccumulateBoundingBox(ref boundingBox);
result = true;
}
catch (InsufficientCorrespondencesException)
{
result = false;
}
return(result);
}