// This loads the snapshot from harddisk into memory
internal void RestoreFromFile()
{
lock (this)
{
if (isdisposed)
{
return;
}
if (!isondisk)
{
return;
}
isondisk = false;
// Read the file data
MemoryStream instream = new MemoryStream(File.ReadAllBytes(filename));
// Decompress data
MemoryStream outstream = SharpCompressHelper.DecompressStream(instream); //mxd
recstream = new MemoryStream(outstream.ToArray());
// Clean up
instream.Dispose();
File.Delete(filename);
filename = null;
}
}
// This moves the snapshot from memory to harddisk
internal void WriteToFile()
{
lock (this)
{
if (isdisposed)
{
return;
}
if (isondisk)
{
return;
}
isondisk = true;
// Compress data
recstream.Seek(0, SeekOrigin.Begin);
MemoryStream outstream = SharpCompressHelper.CompressStream(recstream); //mxd
// Make temporary file
filename = General.MakeTempFilename(General.Map.TempPath, "snapshot");
// Write data to file
File.WriteAllBytes(filename, outstream.ToArray());
// Remove data from memory
recstream.Dispose();
recstream = null;
outstream.Dispose();
}
}
// This makes a prefab of the selection. Returns null when cancelled.
private static MemoryStream MakePrefab()
{
// Let the plugins know
if (General.Plugins.OnCopyBegin())
{
// Ask the editing mode to prepare selection for copying.
// The edit mode should mark all vertices, lines and sectors
// that need to be copied.
if (General.Editing.Mode.OnCopyBegin())
{
// Copy the marked geometry
// This links sidedefs that are not linked to a marked sector to a virtual sector
MapSet copyset = General.Map.Map.CloneMarked();
// Convert flags and activations to UDMF fields, if needed
if (!(General.Map.FormatInterface is UniversalMapSetIO))
{
copyset.TranslateToUDMF(General.Map.FormatInterface.GetType());
}
// Write data to stream
MemoryStream memstream = new MemoryStream();
UniversalStreamWriter writer = new UniversalStreamWriter();
writer.RememberCustomTypes = false;
writer.Write(copyset, memstream, null);
// Compress the stream
memstream.Seek(0, SeekOrigin.Begin);
MemoryStream compressed = SharpCompressHelper.CompressStream(memstream); //mxd
// Done
memstream.Dispose();
General.Editing.Mode.OnCopyEnd();
General.Plugins.OnCopyEnd();
return(compressed);
}
}
// Aborted
return(null);
}
// This pastes a prefab. Returns false when paste was cancelled.
private static void PastePrefab(Stream filedata, PasteOptions options)
{
// Create undo
General.MainWindow.DisplayStatus(StatusType.Action, "Inserted prefab.");
General.Map.UndoRedo.CreateUndo("Insert prefab");
// Decompress stream
MemoryStream memstream; //mxd
try
{
memstream = SharpCompressHelper.DecompressStream(filedata); //mxd
memstream.Seek(0, SeekOrigin.Begin);
}
catch (Exception e)
{
General.ErrorLogger.Add(ErrorType.Error, e.GetType().Name + " while reading prefab from file: " + e.Message);
General.WriteLogLine(e.StackTrace);
General.ShowErrorMessage("Unable to load prefab. See log file for error details.", MessageBoxButtons.OK);
return;
}
// Mark all current geometry
General.Map.Map.ClearAllMarks(true);
// Read data stream
UniversalStreamReader reader = new UniversalStreamReader(General.Map.FormatInterface.UIFields); //mxd
reader.StrictChecking = false;
General.Map.Map.BeginAddRemove();
//mxd. UniversalStreamReader can now throw errors
try
{
reader.Read(General.Map.Map, memstream);
}
catch (Exception e)
{
General.ErrorLogger.Add(ErrorType.Error, "Unable to load prefab. " + e.GetType().Name + ": " + e.Message);
General.ShowErrorMessage("Unable to load prefab." + Environment.NewLine + Environment.NewLine + e.Message, MessageBoxButtons.OK);
return;
}
finally
{
General.Map.Map.EndAddRemove();
}
// The new geometry is not marked, so invert the marks to get it marked
General.Map.Map.InvertAllMarks();
// Convert UDMF fields back to flags and activations, if needed
if (!(General.Map.FormatInterface is UniversalMapSetIO))
{
General.Map.Map.TranslateFromUDMF();
}
// Modify tags and actions if preferred
if (options.ChangeTags == PasteOptions.TAGS_REMOVE)
{
Tools.RemoveMarkedTags();
}
if (options.ChangeTags == PasteOptions.TAGS_RENUMBER)
{
Tools.RenumberMarkedTags();
}
if (options.RemoveActions)
{
Tools.RemoveMarkedActions();
}
// Done
memstream.Dispose();
General.Map.Map.UpdateConfiguration();
General.Map.ThingsFilter.Update();
General.Editing.Mode.OnPasteEnd(options);
General.Plugins.OnPasteEnd(options);
}
