private void Rectangle_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Rectangle r = (Rectangle)sender;
r.ReleaseMouseCapture();
ContentPresenter dobj = (ContentPresenter)itemsControl.ItemContainerGenerator.ContainerFromItem(r.DataContext);
Point ct = new Point((double)dobj.GetValue(Canvas.LeftProperty) + r.Width / 2, (double)dobj.GetValue(Canvas.TopProperty) + r.Height / 2);
r.IsHitTestVisible = false;
// TODO: find a better way to do this hit testing
List <Rectangle> hitTests = new List <Rectangle>();
hitTests.Add(r);
Rectangle hit = null;
while (hit == null)
{
IInputElement el = InputHitTest(ct);
if (!(el is Rectangle))
{
break;
}
Rectangle r2 = (Rectangle)el;
if (r2.DataContext is Item)
{
r2.IsHitTestVisible = false; hitTests.Add(r2); continue;
}
hit = r2;
}
foreach (Rectangle r3 in hitTests)
{
r3.IsHitTestVisible = true;
}
Item item = (Item)r.DataContext;
int oldState = item.State;
if (hit == positiveBlock)
{
item.State = 1;
r.Stroke = Brushes.LimeGreen;
}
if (hit == negativeBlock)
{
item.State = -1;
r.Stroke = Brushes.Red;
}
if (hit == null)
{
item.State = 0;
r.Stroke = normalStroke;
}
if (oldState != item.State)
{
// Update classifier
ItemsModel model = (ItemsModel)DataContext;
r.Cursor = Cursors.Wait;
bool isClassifying = model.Reclassify();
BottomPanel.Visibility = isClassifying? Visibility.Visible : Visibility.Hidden;
r.Cursor = null;
foreach (Item it2 in model.Items)
{
if (it2 != item)
{
StartAnimation(it2);
}
}
}
StartAnimation(item);
dragPoint.X = -1;
}
