void file_change_size_Click(object sender, RoutedEventArgs e)
        {
            if (this.activeMap != null)
            {
                NewMapDialog dialog = new NewMapDialog(this.activeMap);
                dialog.ShowDialog();

                this.activeMap.FillGrids(
                    this.ArtBoard_Front,
                    this.ArtBoard_Middle,
                    this.ArtBoard_Back);
            }
        }
        void file_new_Click(object sender, RoutedEventArgs e)
        {
            NewMapDialog dialog = new NewMapDialog();

            dialog.ShowDialog();
            if (dialog.OutputMap != null)
            {
                this.activeMap = dialog.OutputMap;

                this.ArtBoard_Back.Children.Clear();
                this.ArtBoard_Middle.Children.Clear();
                this.ArtBoard_Front.Children.Clear();

                this.activeMap.FillGrids(
                    this.ArtBoard_Front,
                    this.ArtBoard_Middle,
                    this.ArtBoard_Back);

                this.RefreshBackground();
            }
        }
        void file_new_Click(object sender, RoutedEventArgs e)
        {
            NewMapDialog dialog = new NewMapDialog();
            dialog.ShowDialog();
            if (dialog.OutputMap != null)
            {
                this.activeMap = dialog.OutputMap;

                this.ArtBoard_Back.Children.Clear();
                this.ArtBoard_Middle.Children.Clear();
                this.ArtBoard_Front.Children.Clear();

                this.activeMap.FillGrids(
                    this.ArtBoard_Front,
                    this.ArtBoard_Middle,
                    this.ArtBoard_Back);

                this.RefreshBackground();
            }
        }
        void file_change_size_Click(object sender, RoutedEventArgs e)
        {
            if (this.activeMap != null)
            {
                NewMapDialog dialog = new NewMapDialog(this.activeMap);
                dialog.ShowDialog();

                this.activeMap.FillGrids(
                    this.ArtBoard_Front,
                    this.ArtBoard_Middle,
                    this.ArtBoard_Back);
            }
        }