private void Draw(bool updateLegends = true)
{
cnvMain.Children.Clear();
double verticalLineHorizontalMargin = 40;
double horisontalLineVerticalMargin = 25;
double legendsHorizontalMargin = 10;
// Drawing Main lines
var vLine = new Line
{
X1 = verticalLineHorizontalMargin,
X2 = verticalLineHorizontalMargin,
Y1 = 10,
Y2 = cnvMain.ActualHeight - 10
};
var hLine = new Line
{
X1 = 10,
X2 = cnvMain.ActualWidth - 10,
Y1 = cnvMain.ActualHeight - horisontalLineVerticalMargin,
Y2 = cnvMain.ActualHeight - horisontalLineVerticalMargin
};
cnvMain.Children.Add(vLine);
cnvMain.Children.Add(hLine);
//-------------------------------------------------------------------------------
var tmpItems = new ArrayList();
if (Items != null)
{
foreach (object item in Items)
{
tmpItems.Add(item);
}
}
if (tmpItems.Count == 0 ||
String.IsNullOrEmpty(VerticalPropertyName) ||
String.IsNullOrEmpty(HorizontalPropertyName) ||
String.IsNullOrEmpty(LegendPropertyName))
{
return;
}
if (tmpItems[0].GetType().GetProperty(VerticalPropertyName) == null)
{
throw new ArgumentException("VerticalPropertyName is not correct.");
}
if (tmpItems[0].GetType().GetProperty(HorizontalPropertyName) == null)
{
throw new ArgumentException("HorizontalPropertyName is not correct.");
}
if (tmpItems[0].GetType().GetProperty(LegendPropertyName) == null)
{
throw new ArgumentException("LegendPropertyName is not correct.");
}
tmpItems.Sort(new ItemsComparer(HorizontalPropertyName));
//-------------------------------------------------------------------------------
var horizontalValues = new List <double>();
double maxValue = 0;
foreach (var item in tmpItems)
{
var verticalValue = item.GetType().GetProperty(VerticalPropertyName).GetValue(item, null);
var horizontalValue = item.GetType().GetProperty(HorizontalPropertyName).GetValue(item, null);
if (!horizontalValues.Exists(i => i == Convert.ToDouble(horizontalValue)))
{
horizontalValues.Add(Convert.ToDouble(horizontalValue));
}
if (Convert.ToDouble(verticalValue) > maxValue)
{
maxValue = Convert.ToDouble(verticalValue);
}
}
if (cnvMain.ActualWidth == 0)
{
return;
}
//-------------------------------------------------------------------------------
double drawingAreaWidth = (cnvMain.ActualWidth - verticalLineHorizontalMargin);
double maxValueTopMargin = 10 + 20;
var lMax = new Line
{
StrokeDashArray = new DoubleCollection()
{
2
},
X1 = verticalLineHorizontalMargin - 5,
X2 = hLine.X2,
Y1 = maxValueTopMargin,
Y2 = maxValueTopMargin
};
cnvMain.Children.Add(lMax);
var lAvg = new Line
{
StrokeDashArray = new DoubleCollection()
{
2
},
X1 = lMax.X1,
X2 = lMax.X2,
Y1 = (hLine.Y1 - lMax.Y1) / 2 + maxValueTopMargin,
Y2 = (hLine.Y1 - lMax.Y1) / 2 + maxValueTopMargin
};
cnvMain.Children.Add(lAvg);
var tbMax = new TextBlock {
Text = maxValue.ToString()
};
var formattedMaxText = new FormattedText(tbMax.Text,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(tbMax.FontFamily, tbMax.FontStyle, tbMax.FontWeight, tbMax.FontStretch),
tbMax.FontSize,
Brushes.Black);
Canvas.SetLeft(tbMax, verticalLineHorizontalMargin - formattedMaxText.Width - 10);
Canvas.SetTop(tbMax, lMax.Y1 - formattedMaxText.Height / 2.0);
cnvMain.Children.Add(tbMax);
var tbAvg = new TextBlock {
Text = (maxValue / 2.0).ToString()
};
var formattedAvgText = new FormattedText(tbAvg.Text,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(tbAvg.FontFamily, tbAvg.FontStyle, tbAvg.FontWeight, tbAvg.FontStretch),
tbAvg.FontSize,
Brushes.Black);
Canvas.SetLeft(tbAvg, verticalLineHorizontalMargin - formattedAvgText.Width - 10);
Canvas.SetTop(tbAvg, lAvg.Y1 - formattedAvgText.Height / 2.0);
cnvMain.Children.Add(tbAvg);
int legendsCount = Legends.Count(f => f.IsVisible || !CanChangeLegendVisibility);
double barsWidth = (drawingAreaWidth - (horizontalValues.Count * legendsHorizontalMargin)) / horizontalValues.Count / legendsCount - legendsHorizontalMargin / 2.0;
if (Double.IsInfinity(barsWidth) || Double.IsNaN(barsWidth))
{
barsWidth = 0;
}
double HorItemWidth = Math.Ceiling((drawingAreaWidth - (horizontalValues.Count * legendsHorizontalMargin)) / horizontalValues.Count);
for (int i = 0; i < horizontalValues.Count; i++)
{
Line l = new Line();
l.X1 = (HorItemWidth * i) + verticalLineHorizontalMargin + ((legendsCount * barsWidth) / 2.0) + legendsHorizontalMargin;
l.X2 = l.X1;
l.Y1 = hLine.Y1;
l.Y2 = l.Y1 + 5;
cnvMain.Children.Add(l);
var tb = new TextBlock {
Text = horizontalValues[i].ToString()
};
var formattedText = new FormattedText(tb.Text,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(tb.FontFamily, tb.FontStyle, tb.FontWeight, tb.FontStretch),
tb.FontSize,
Brushes.Black);
Canvas.SetLeft(tb, l.X1 - (formattedText.Width / 2));
Canvas.SetTop(tb, l.Y2 + 5);
cnvMain.Children.Add(tb);
}
foreach (double horizontalIndex in horizontalValues)
{
var items = from object item in tmpItems
where Convert.ToDouble(item.GetType().GetProperty(HorizontalPropertyName).GetValue(item, null)) == horizontalIndex
orderby item.GetType().GetProperty(LegendPropertyName).GetValue(item, null)
select item;
int legendValueIndex = 0;
foreach (object item in items)
{
var verticalValue = item.GetType().GetProperty(VerticalPropertyName).GetValue(item, null);
var horizontalValue = item.GetType().GetProperty(HorizontalPropertyName).GetValue(item, null);
var legendValue = item.GetType().GetProperty(LegendPropertyName).GetValue(item, null);
object currentLegend = null;
try
{
currentLegend = Legends.Where(i => i.LegendType.Equals(legendValue)).First();
}
catch
{ }
if (currentLegend == null || (CanChangeLegendVisibility && !(currentLegend as Legend).IsVisible))
{
continue;
}
int horizontalValueIndex = horizontalValues.IndexOf(Convert.ToDouble(horizontalValue));
double barLeft = (HorItemWidth * horizontalValueIndex) + legendsHorizontalMargin +
verticalLineHorizontalMargin +
(legendValueIndex * barsWidth);
var b = new Border
{
Style = (Style)cnvMain.FindResource("BarStyle"),
Width = barsWidth,
Height = Convert.ToDouble(verticalValue) * (hLine.Y1 - lMax.Y1) / maxValue,
Background = (currentLegend as Legend).Brush
};
Canvas.SetLeft(b, barLeft);
Canvas.SetTop(b, hLine.Y1 - b.Height);
cnvMain.Children.Add(b);
var tbValue = new TextBlock();
Panel.SetZIndex(tbValue, 100);
tbValue.Text = verticalValue.ToString();
var binding = new Binding("ValueVisibility")
{
Source = this
};
tbValue.SetBinding(TextBlock.VisibilityProperty, binding);
var formattedText = new FormattedText(tbValue.Text,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(tbValue.FontFamily, tbValue.FontStyle, tbValue.FontWeight, tbValue.FontStretch),
tbValue.FontSize,
Brushes.Black);
Canvas.SetLeft(tbValue, barLeft + (((barLeft + barsWidth) - barLeft) / 2 - formattedText.Width / 2));
Canvas.SetTop(tbValue, hLine.Y1 - b.Height - formattedText.Height - 5);
cnvMain.Children.Add(tbValue);
legendValueIndex++;
}
}
if (updateLegends)
{
DrawLegends();
}
else
{
cnvMain.Children.Add(brdLegends);
}
}
