/// <summary>
/// Clones the input datasource, saves it to the disk and starts append mode.
/// </summary>
public bool SaveAppendModeFeatureSet(IFeatureSet fs, OutputLayerInfo output, IToolLogger log)
{
if (File.Exists(output.Filename))
{
if (output.Overwrite)
{
if (!GeoSource.Remove(output.Filename))
{
log.Info("Failed to overwrite.");
return(false);
}
}
else
{
log.Info("Overwrite options isn't selected.");
return(false);
}
}
if (!fs.SaveAsEx(output.Filename, true))
{
log.Info("Failed to save resulting datasource: " + fs.LastError);
return(false);
}
fs.StartAppendMode();
return(true);
}
private void RemoveFile()
{
var item = GetSelectedItem <IFileItem>();
if (item == null)
{
MessageService.Current.Info("No filename is selected.");
return;
}
if (_context.Layers.Select(l => l.Identity).Contains(item.Identity))
{
MessageService.Current.Info("Can't remove datasource currently opened by the program.");
return;
}
if (
MessageService.Current.Ask("Do you want to remove the datasource: " + Environment.NewLine +
item.Filename + "?"))
{
try
{
var folder = item.Folder;
GeoSource.Remove(item.Filename);
RefreshItem(folder);
}
catch (Exception ex)
{
MessageService.Current.Warn("Failed to remove file: " + ex.Message);
}
}
}
/// <summary>
/// Runs the tool.
/// </summary>
public override bool Run(ITaskHandle task)
{
// ReSharper disable once InvertIf
if (Output.Overwrite && !GeoSource.Remove(Output.Filename))
{
Log.Warn("Failed to remove file: " + Output.Filename, null);
return(false);
}
return(GisUtils.Instance.Polygonize(GridFilename, Output.Filename, BandIndex, false, null, GdalFormats.Shapefile));
}
public bool DeleteOutputs(IParametrizedTool tool)
{
foreach (var output in tool.GetOutputs())
{
if (File.Exists(output.Filename) && output.Overwrite)
{
if (!GeoSource.Remove(output.Filename))
{
MessageService.Current.Info("Failed to remove datasource: " + output.Filename);
return(false);
}
}
}
return(true);
}
private bool SaveDatasource(IDatasource ds, string filename)
{
if (!GeoSource.Remove(filename))
{
return(HandleOverwriteFailure());
}
if (LayerSourceHelper.Save(ds, filename))
{
Logger.Current.Info("Layer ({0}) is created.", filename);
return(true);
}
Logger.Current.Error("Failed to save datasource: " + ds.LastError);
return(false);
}
/// <summary>
/// Runs the tool.
/// </summary>
public override bool Run(ITaskHandle task)
{
var poly = GetPolygon();
if (poly == null)
{
Log.Warn("Failed to extract the clip polygon.", null);
return(false);
}
// ReSharper disable once InvertIf
if (Output.Overwrite && !GeoSource.Remove(Output.Filename))
{
Log.Warn("Failed to remove file: " + Output.Filename, null);
return(false);
}
return(GisUtils.Instance.ClipGridWithPolygon(Input.Datasource.Filename, poly, Output.Filename, KeepExtents));
}
/// <summary>
/// Removes output layers generated by the execution of the tool. Layers are removed both from map and from the disk.
/// </summary>
public static bool RemoveOutputs(this IParametrizedTool tool, IAppContext context, ILayerService layerService)
{
foreach (var output in tool.GetOutputs())
{
var cache = output.DatasourcePointer;
if (cache == null)
{
// it's normal in case tool execution failed or was interrupted
continue;
}
if (cache.LayerHandle != -1)
{
// it's only in-memory, so it's enough to remove it from map
if (!layerService.RemoveLayer(cache.LayerHandle))
{
MessageService.Current.Warn("Failed to remove output layer from the map.");
return(false);
}
}
else if (cache.LayerIdentity != null)
{
if (context.Layers.Any(l => l.Identity == cache.LayerIdentity))
{
if (!layerService.RemoveLayer(cache.LayerIdentity))
{
MessageService.Current.Warn("Failed to remove output layer from the map.");
return(false);
}
}
if (!GeoSource.Remove(cache.LayerIdentity.Filename))
{
MessageService.Current.Warn("Failed to remove output layer from disk.");
return(false);
}
}
}
return(true);
}
private static bool AddTempDataSource(
IAppContext context,
ILayerService layerService,
string filename,
OutputLayerInfo outputInfo)
{
var fs = FeatureSet.OpenAsInMemoryDatasource(filename);
if (fs != null)
{
// output info name
if (layerService.AddDatasource(fs))
{
var layer = context.Layers.ItemByHandle(layerService.LastLayerHandle);
layer.Name = outputInfo.Name;
GeoSource.Remove(filename);
return(true);
}
}
return(false);
}