void Update(CallTreeNodeViewModel item)
{
Debug.WriteLine("RingDiagram.Update: new root = " + item);
this.task.Cancel();
Debug.WriteLine("hierarchyStack count: " + this.hierarchyStack.Count);
while (this.hierarchyStack.Count > 0 && !hierarchyStack.Peek().IsAncestorOf(item))
{
this.hierarchyStack.Pop();
}
Debug.Assert(hierarchyStack.Count == 0 || hierarchyStack.Peek().IsAncestorOf(item));
this.Children.Clear();
if (item == null)
{
return;
}
List <Shape> newItems = new List <Shape>();
Ellipse ell = new Ellipse();
ell.Width = 40;
ell.Height = 40;
ell.VerticalAlignment = VerticalAlignment.Center;
ell.HorizontalAlignment = HorizontalAlignment.Center;
ell.Fill = Brushes.Gray;
ell.Stroke = Brushes.Black;
ell.ToolTip = item.CreateToolTip(Translation);
ell.Tag = item;
ell.MouseLeftButtonDown += (sender, e) =>
{
if (this.hierarchyStack.Count > 1 && this.hierarchyStack.Peek().Level > 1)
{
var oldItem = this.hierarchyStack.Pop();
this.SelectedRoot = this.hierarchyStack.Peek();
this.SelectedRoot.IsSelected = true;
this.SelectedRoot.IsExpanded = true;
oldItem.IsSelected = false;
}
};
if (hierarchyStack.Count == 0 || hierarchyStack.Peek() != item)
{
this.hierarchyStack.Push(item);
}
List <PiePieceDescriptor> pieces = new List <PiePieceDescriptor>();
this.task.Execute(
() => {
if (item.CpuCyclesSpent > 0)
{
CreateTree(pieces, item, 0, item.CpuCyclesSpent, 0);
}
},
() => {
this.Children.Add(ell);
this.Children.AddRange(pieces.Select(p => CreatePiePiece(p.Radius, p.WedgeAngle, p.RotationAngle, p.Level, p.Node)));
item.BringIntoView();
},
delegate { }
);
}
private PiePiece CreatePiePiece(int rad, double wedgeAngle, double rotationAngle, int level, CallTreeNodeViewModel node)
{
// prevent exception when ProfilerHook screws up and children are larger than their parent (e.g. when process is killed)
if (rotationAngle > 360)
{
rotationAngle %= 360;
}
PiePiece p = new PiePiece();
p.Radius = 20 + level * rad;
p.InnerRadius = level * rad;
p.WedgeAngle = wedgeAngle;
p.RotationAngle = rotationAngle;
p.Stroke = Brushes.Black;
p.ToolTip = node.CreateToolTip(Translation);
p.VerticalAlignment = VerticalAlignment.Center;
p.HorizontalAlignment = HorizontalAlignment.Center;
p.Tag = node;
p.MouseLeftButtonDown += new MouseButtonEventHandler(
delegate(object sender, MouseButtonEventArgs e) {
node.IsExpanded = true;
node.IsSelected = true; // expand the path to the node so that the treeview can select it
var oldNode = this.SelectedRoot;
this.SelectedRoot = node;
oldNode.IsSelected = false;
}
);
HSVColor hsv = new HSVColor {
Hue = (float)rotationAngle,
Saturation = 0.5f,
Value = 0.6f - level / 50f
};
SolidColorBrush brush = new SolidColorBrush();
p.Fill = brush;
Color normalColor = hsv.ToColor();
hsv.Value = 0.8f;
Color highlightColor = hsv.ToColor();
brush.Color = normalColor;
p.IsMouseDirectlyOverChanged += (sender, e) => {
if (p.IsMouseDirectlyOver)
{
brush.BeginAnimation(SolidColorBrush.ColorProperty,
new ColorAnimation(highlightColor, new Duration(TimeSpan.FromSeconds(0.5)),
FillBehavior.HoldEnd));
}
else
{
brush.BeginAnimation(SolidColorBrush.ColorProperty,
new ColorAnimation(normalColor, new Duration(TimeSpan.FromSeconds(0.5)),
FillBehavior.Stop));
}
};
return(p);
}
