private void OnDocumentRename(object sender, EventArgs e)
        {
            Dialogue dialogue = tree.SelectedNode.Tag as Dialogue;

            if (dialogue != null)
            {
                bool proceed = false;
                if (EditorCore.MainWindow != null)
                {
                    proceed = EditorCore.MainWindow.TryToReloadOrSaveDialogueIfDirty(dialogue);
                }

                if (proceed)
                {
                    SaveFileDialog dialog = new SaveFileDialog();
                    dialog.Title            = "Rename Dialogue";
                    dialog.Filter           = "Dialogue Files|*" + Dialogue.GetExtension();
                    dialog.InitialDirectory = Path.Combine(EditorHelper.GetProjectDirectory(), dialogue.GetFilePath());

                    DialogResult result = dialog.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        if (EditorCore.MainWindow != null)
                        {
                            EditorCore.MainWindow.CloseDocumentDialogue(dialogue, true);
                        }

                        TreeNode nodeFolder = tree.SelectedNode.Parent;

                        tree.Nodes.Remove(tree.SelectedNode);
                        tree.SelectedNode = null;

                        DeleteIfEmptyFolder(nodeFolder);

                        ResourcesHandler.RenameDialogueFile(dialogue, dialog.FileName);

                        ResyncFile(dialogue, true);

                        if (EditorCore.MainWindow != null)
                        {
                            EditorCore.MainWindow.OpenDocumentDialogue(dialogue);
                        }
                    }
                }
            }
        }