public void Start(InkCanvas inkCanvas)
{
Break(inkCanvas);
inkCanvas.DefaultDrawingAttributes.AttributeChanged += DrawingAttributesOnAttributeChanged;
_drawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone();
ProcessDrawShapeState = DrawShapeState.WaitingStartPoint;
}
public void MouseDown(InkCanvas inkCanvas, MouseButtonEventArgs mouseButtonEventArgs)
{
if (ProcessDrawShapeState != DrawShapeState.WaitingStartPoint)
{
return;
}
InitShape(inkCanvas, _drawingAttributes, mouseButtonEventArgs.GetPosition(inkCanvas));
ProcessDrawShapeState = DrawShapeState.WaitingEndPoint;
}
public void Break(InkCanvas inkCanvas)
{
if (ProcessDrawShapeState != DrawShapeState.Inactive && !PointCollectionIsEmpty && PointCollection.Count == 1)
{
RemoveStrokesWithoutPoints(inkCanvas, _shapeStroke);
}
ProcessDrawShapeState = DrawShapeState.Inactive;
inkCanvas.DefaultDrawingAttributes.AttributeChanged -= DrawingAttributesOnAttributeChanged;
}
