private void btnRemoveNode_Click(object sender, RoutedEventArgs e)
{
if (_sourceElement is VertexVisual)
{
VertexVisualsList.Remove(_sourceElement as VertexVisual);
pnlMap.Children.Remove(_sourceElement as VertexVisual);
_sourceElement = null;
}
}
private void btnAddEdge_Click(object sender, RoutedEventArgs e)
{
int from, to;
if (!int.TryParse(tbStart.Text, out from) || !int.TryParse(tbFinish.Text, out to))
{
lblErrorInfo.Content = "Укажите номер вершины";
return;
}
try
{
WayPoint NodeFrom, NodeTo;
NodeFrom = VertexVisualsList[VertexVisualsList.FindIndex(delegate(VertexVisual vv){ return(int.Parse(vv.Number) == from); })].Node;
NodeTo = VertexVisualsList[VertexVisualsList.FindIndex(delegate(VertexVisual vv){ return(int.Parse(vv.Number) == to); })].Node;
if (EdgeVisualsList.FindIndex(delegate(EdgeVisual obj) { return(obj.NodeFrom == NodeFrom && obj.NodeTo == NodeTo); }) == -1)
{
EdgeVisual ev = new EdgeVisual(new PathFigure(NodeFrom.LocationPoint, new List <PathSegment>()
{
new LineSegment(NodeTo.LocationPoint, true)
}, false))
{
NodeFrom = NodeFrom,
NodeTo = NodeTo,
Zoom = Zoom
};
EdgeVisualsList.Add(ev);
pnlMap.Children.Insert(0, ev);
foreach (var vertex in VertexVisualsList.FindAll(delegate(VertexVisual vv) { return(vv.Node == NodeFrom); }))
{
vertex.OutCount++;
}
foreach (var vertex in VertexVisualsList.FindAll(delegate(VertexVisual vv) { return(vv.Node == NodeTo); }))
{
vertex.InCount++;
}
}
else
{
lblErrorInfo.Content = "Такое ребро уже существует";
return;
}
}
catch (IndexOutOfRangeException ee)
{
lblErrorInfo.Content = "Одна из вершин не найдена";
return;
}
catch (ArgumentOutOfRangeException ee)
{
lblErrorInfo.Content = "Одна из вершин не найдена";
return;
}
lblErrorInfo.Content = "Ребро добавлено";
}
private void pnlMap_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Point position = e.GetPosition(pnlMap);
WayPoint wp = new WayPoint()
{
LocationPoint = new Point(position.X / Zoom, position.Y / Zoom)
};
VertexVisual vv = new VertexVisual(wp)
{
Number = (VertexVisualsList.Count + 1).ToString(),
Zoom = Zoom
};
VertexVisualsList.Add(vv);
pnlMap.Children.Add(vv);
}