private bool RemoveLayerCore(int layerHandle, bool silent)
{
var layer = _context.Map.GetLayer(layerHandle);
if (layer == null)
{
Logger.Current.Warn("LayerService.RemoveLayer: attempting to remove layer with invalid handle.");
return(false);
}
if (!silent)
{
if (!MessageService.Current.Ask(string.Format("Do you want to remove the layer: {0}?", layer.Name)))
{
return(false);
}
}
var args = new LayerCancelEventArgs(layerHandle);
_broadcaster.BroadcastEvent(p => p.BeforeRemoveLayer_, _context.Legend, args);
if (args.Cancel)
{
return(false);
}
_context.Map.Layers.Remove(layerHandle);
return(true);
}
/// <summary>
/// Toggles interactive editing state for vector layer.
/// </summary>
public void ToggleVectorLayerEditing()
{
// perhaps better to allow setting state explicitly as parameter
int handle = _context.Legend.SelectedLayerHandle;
var fs = _context.Layers.GetFeatureSet(handle);
var ogrLayer = _context.Layers.GetVectorLayer(handle);
var args = new LayerCancelEventArgs(handle);
_broadcaster.BroadcastEvent(p => p.BeforeLayerEditingChanged_, _context.Legend, args);
if (args.Cancel)
{
return;
}
if (fs == null)
{
return;
}
if (fs.InteractiveEditing)
{
if (!SaveLayerChanges(handle))
{
return;
}
}
else
{
if (ogrLayer != null)
{
/*if (ogrLayer.DynamicLoading)
* {
* MessageService.Current.Info("Editing of dynamically loaded OGR layers isn't allowed.");
* return;
* }*/
if (!ogrLayer.get_SupportsEditing(SaveType.SaveAll))
{
MessageService.Current.Info("OGR layer doesn't support editing: " + ogrLayer.LastError);
return;
}
}
fs.InteractiveEditing = true;
}
_broadcaster.BroadcastEvent(p => p.LayerEditingChanged_, _context.Legend, new LayerEventArgs(handle));
_context.Legend.Redraw(LegendRedraw.LegendAndMap);
}
