private void Visualizer_OnSelected(object sender, SelectionChangedEventArgs e)
{
if (_graphService == null || e.AddedItems.Count == 0)
{
return;
}
Func <VK.Model.User, IEnumerable <Tuple <long, string> > > infoExtractor = null;
switch ((string)((ComboBoxItem)e.AddedItems[0]).Content)
{
case "По городу":
infoExtractor = user => user.City == null ? new Tuple <long, string> [0] : new[] { Tuple.Create(user.City.Id, user.City.Title) };
break;
case "По университету":
infoExtractor = user => user.Universities.Select(i => Tuple.Create(i.Id, i.Name));
break;
case "По школе":
infoExtractor = user => user.Schools.Select(i => Tuple.Create(i.Id, i.Name));
break;
default:
_model.VisualizationItems = null;
_graphService.UpdateColors(false);
return;
}
var brushes = new SolidColorBrush[]
{
Brushes.Red,
Brushes.Yellow,
Brushes.Orange,
Brushes.Green,
Brushes.Aqua,
Brushes.Fuchsia,
Brushes.LightPink,
Brushes.Purple,
Brushes.Lime,
Brushes.Brown,
};
var distribution = _users.SelectMany(i => infoExtractor(i.Model))
.GroupBy(i => i.Item1)
.OrderByDescending(i => i.Count())
.Take(10)
.Select((i, v) => new
{
Id = i.Key,
Model = new MainWindowModel.VisualizationItemModel(i.First().Item2, brushes[v], i.Count())
})
.ToDictionary(i => i.Id, i => i.Model);
_model.VisualizationItems = distribution.Values.OrderByDescending(i => i.Count).ToArray();
for (var i = 0; i < _users.Length; i++)
{
int maxCount = int.MinValue;
Color maxColor = default(Color);
foreach (var item in infoExtractor(_users[i].Model))
{
MainWindowModel.VisualizationItemModel model;
if (distribution.TryGetValue(item.Item1, out model) && model.Count > maxCount)
{
maxCount = model.Count;
maxColor = model.Brush.Color;
}
}
_users[i].Color = maxCount == int.MinValue
? Color3.Black
: new Color3(maxColor.ScR, maxColor.ScG, maxColor.ScB);
}
_graphService.UpdateColors(true);
}
