private void DrawVisuals()
{
if (_mainVisual != null)
{
_children.Remove(_mainVisual);
}
_mainVisual = new DrawingVisual();
_mainVisual.CacheMode = new BitmapCache();
var renderRect = GetChartRect();
var whileRect = new Rect(0, 0, Math.Round(ActualWidth), Math.Round(ActualHeight));
_mainVisual.Clip = new RectangleGeometry(whileRect);
var dc = _mainVisual.RenderOpen();
CreateBackgroundVisual(dc, whileRect);
if (_mainCollection != null)
{
var collRect = new Rect(renderRect.Left + 1, renderRect.Top + 1, renderRect.Width - 2, renderRect.Height - 2);
_mainCollection.CalculatePosition(collRect);
CreateYScaleVisual(dc, renderRect, renderRect.Right, _mainCollection);
CreateXScaleVisual(dc, renderRect, renderRect.Bottom, _mainCollection);
_mainCollection.Draw(dc);
}
CreateBorderVisual(dc);
foreach (var assistColl in _assistCollections)
{
CreateCollectionVisual(dc, renderRect, assistColl);
}
dc.Close();
_children.Add(_mainVisual);
}
private void CreateCollectionVisual(DrawingContext drawingContext, Rect drawRect, ChartItemCollection collection)
{
// Create a rectangle and draw it in the DrawingContext.
collection.CalculatePosition(drawRect);
collection.Draw(drawingContext);
}
