object ISeries.GetLegendItemImageSource(int index, ref C1.Chart._Size imageSize)
{
if (ShowCustomIcons)
{
imageSize.Width = 60;
imageSize.Height = 60;
SmartPhoneVendor vendor = ViewModel.SmartPhoneVendors.ElementAt(index);
if (vendor.ImageSource is BitmapImage)
{
// replace the BitmapImage with a new ImageSource wrapped in the legend item color
SolidColorBrush brush = new SolidColorBrush(vendor.Color);
vendor.ImageSource = makeLegendImageSource(vendor.ImageSource, brush, imageSize);
}
// Try and keep the original size of the logo bitmaps, but reduce their size if the chart window
// is too small to display the bitmaps properly.
double boundsHeight = ParentControl.ArrangeBounds.Height - 50;
double divadj = (boundsHeight > 800) ? 13 : 25;
double fracHeight = boundsHeight / divadj;
if (fracHeight < imageSize.Height)
{
imageSize.Width = imageSize.Height = fracHeight;
}
return(vendor.ImageSource);
}
else
{
return(null);
}
}
object ISeries.GetLegendItemImageSource(int index, ref C1.Chart._Size imageSize)
{
if (ShowCustomIcons)
{
var bounds = Windows.UI.ViewManagement.ApplicationView.
GetForCurrentView().VisibleBounds;
double divadj = bounds.Height > 900 ? 15 : 35;
double fracHeight = bounds.Height / divadj;
imageSize.Width = imageSize.Height = fracHeight < 60 ? fracHeight : 60;
SmartPhoneVendor vendor = SampleViewModel.SmartPhoneVendors.ElementAt(index);
return(vendor.ImageSource);
}
else
{
return(null);
}
}