void buttonUndo_Click(object sender, EventArgs e)
{
if (_shelvedFiles.Count == 0)
{
return;
}
if (_shelvedFiles.Count == 1)
{
buttonUndo.Enabled = false;
}
var userPrefs = new PersistedUserPreferences();
var shelvedFile = _shelvedFiles.Pop();
var host = new ImageHost(
new FileNameHandler(userPrefs),
userPrefs.ShelfName,
new FileInfo(shelvedFile.Item1)
)
{
Parent = _currentFiles
};
host.ShelvePicture();
var nextNode = _currentFiles.First;
while (nextNode != null &&
string.Compare(nextNode.Value.FileInfo.Name, host.FileInfo.Name, StringComparison.InvariantCultureIgnoreCase) < 0
)
{
nextNode = nextNode.Next;
}
NodesTuple displayLocation;
if (nextNode == null)
{
_currentFiles.AddLast(host);
displayLocation = _currentFiles.Count == 1
? new NodesTuple(_currentFiles.First, _currentFiles.First)
: new NodesTuple(_currentFiles.Last.Previous, _currentFiles.Last);
}
else
{
var newNode = _currentFiles.AddBefore(nextNode, host);
if (shelvedFile.Item2 == Side.Right && newNode.Previous != null)
{
displayLocation = new NodesTuple(newNode.Previous, newNode);
}
else
{
displayLocation = new NodesTuple(newNode, newNode.Next);
}
}
_fileIndex = LoadPictures(displayLocation, 0, 0, noRelease: true);
}
void MovePictureImpl(ImageHost imageHost, Side side, int step1, int step2)
{
folderBrowserDialog.SelectedPath =
_lastDestinationDirectory?.FullName
?? _currentDirectory?.FullName
?? new PersistedUserPreferences().FolderImportStart;
folderBrowserDialog.ShowDialog();
// OpenFolderImpl(new DirectoryInfo(folderBrowserDialog.SelectedPath));
_lastDestinationDirectory = new DirectoryInfo(folderBrowserDialog.SelectedPath);
_shelvedFiles.Push(Tuple.Create(imageHost.MovePicture(_lastDestinationDirectory), side));
buttonUndo.Enabled = true;
ArchivePicture(imageHost, step1, step2);
}
void ArchivePicture(ImageHost imageHost, int step1, int step2)
{
_fileIndex = LoadPictures(_fileIndex, step1, step2);
_currentFiles.Remove(imageHost);
imageHost.Dispose();
}
