public DesignerMainWindow()
{
InitializeComponent();
Utilities.CreateInternalDirectories();
_practice = Practice.GetInstance();
Slide slide = CreateNewSlide(_practice.GetPracticeType());
_practice.AddNewSlide(slide);
_slideNr++;
_currentSlideNr++;
_instance = this;
PracticeName.Text = _practice.PracticeName;
// make new thumbnail
Viewbox vb = MakeNewThumbnail();
lbThumbs.Items.Add(vb);
lbThumbs.SelectedIndex = 0;
// override InkCanvas mouse handlers
canMainCanvas.AllowDrop = true;
AddCanvasEventHandlers();
}
public static DesignerMainWindow GetInstance()
{
return _instance ?? (_instance = new DesignerMainWindow());
}