protected override void OnRender(DrawingContext drawingContext)
{
PART_bars.Children.Clear();
PART_xAxisGrid.Children.Clear();
PART_highlightGrid.Children.Clear();
if (FilteredData.Count < 1)
{
base.OnRender(drawingContext);
return;
}
var total = FilteredData.MaxSubsetSum();
var context = new ProviderContext(FilteredData.Count);
var barAvailableWidth = PART_bars.RenderSize.Width / FilteredData.Count;
var barActiveWidth = barAvailableWidth * SegmentWidthPercentage;
var barLeftSpacing = (barAvailableWidth - barActiveWidth) / 2;
var barLabelSize = RenderingExtensions.EstimateLabelRenderSize(BarTotalFontFamily, BarTotalFontSize);
var xtrace = 0;
foreach (var d in FilteredData)
{
var axisLabel = new Label
{
Content = d.CategoryName,
IsHitTestVisible = false,
HorizontalContentAlignment = HorizontalAlignment.Center,
VerticalContentAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Bottom,
Width = barAvailableWidth,
Margin = new Thickness(barAvailableWidth * xtrace, 0, 0, 0),
Foreground = XAxisForeground.GetMaterial(FallbackMaterialSet),
DataContext = this
};
axisLabel.BindTextualPrimitive <XAxisPrimitive>(this);
PART_xAxisGrid.Children.Add(axisLabel);
xtrace++;
}
var horizontalTrace = 0d;
var xAxisHeight = PART_xAxisGrid.ActualHeight;
var backHeight = PART_bars.RenderSize.Height - xAxisHeight;
foreach (var d in FilteredData)
{
var backRectangle = new Rectangle
{
Width = barActiveWidth,
Height = backHeight,
VerticalAlignment = VerticalAlignment.Bottom,
HorizontalAlignment = HorizontalAlignment.Left,
Margin = new Thickness(horizontalTrace + barLeftSpacing, 0, 0, xAxisHeight),
Fill = SegmentSpaceBackground.GetMaterial(FallbackMaterialSet)
};
//backRectangle.MouseEnter += (s, e) => barMouseEnter(d);
PART_bars.Children.Add(backRectangle);
MaterialProvider.Reset(context);
var verticalTrace = 0d;
var pathBuffer = new List <Shape>();
foreach (var sd in d.Value)
{
var materialSet = MaterialProvider.ProvideNext(context);
var height = sd.Value.Map(0, total, 0, PART_bars.RenderSize.Height - xAxisHeight - barLabelSize.Height);
var rectangle = new Rectangle
{
Width = barActiveWidth,
Height = height + verticalTrace,
Fill = SegmentForeground.GetMaterial(materialSet),
VerticalAlignment = VerticalAlignment.Bottom,
HorizontalAlignment = HorizontalAlignment.Left,
Margin = new Thickness(horizontalTrace + barLeftSpacing, 0, 0, xAxisHeight),
RenderTransform = new ScaleTransform(1, (IsLoaded ? 1 : 0), .5, 1),
RenderTransformOrigin = new Point(.5, 1)
};
//rectangle.MouseEnter += (s, e) => barMouseEnter(d);
//rectangle.MouseLeave += (s, e) => barMouseLeave(s, e, d, sd);
//TODO get rid of all isloaded conditional sets
sd.RenderedVisual = rectangle;
pathBuffer.Add(rectangle);
verticalTrace += height;
}
for (var x = pathBuffer.Count - 1; x >= 0; x--)
{
var path = pathBuffer[x];
PART_bars.Children.Add(path);
}
var barLabel = new Label
{
Content = d.Value.SumValue(),
IsHitTestVisible = false,
HorizontalContentAlignment = HorizontalAlignment.Center,
VerticalContentAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Bottom,
Width = barAvailableWidth,
Foreground = BarTotalForeground.GetMaterial(FallbackMaterialSet),
Margin = new Thickness(horizontalTrace, 0, 0, xAxisHeight + verticalTrace),
};
barLabel.BindTextualPrimitive <BarTotalPrimitive>(this);
d.RenderedVisual = pathBuffer;
PART_bars.Children.Add(barLabel);
horizontalTrace += barAvailableWidth;
}
base.OnRender(drawingContext);
}