private void PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (e.Source == _sourceElement)
{
return;
}
if (e.Source is VertexVisual)
{
VertexVisual vv = (VertexVisual)e.Source;
_isDown = true;
SetSourceElement(vv);
_startPoint = e.GetPosition(GraphPanel);//new Point(e.GetPosition(pnlMap).X / Zoom, e.GetPosition(pnlMap).Y / Zoom);
_positionOnSource = new Point(_startPoint.X - vv.Node.Location.X * Zoom, _startPoint.Y - vv.Node.Location.Y * Zoom);
GraphPanel.CaptureMouse();
e.Handled = true;
}
else if (e.Source is EdgeVisual)
{
EdgeVisual ev = (EdgeVisual)e.Source;
_isDown = true;
SetSourceElement(ev);
e.Handled = true;
}
else if (e.Source is Ellipse)
{
_isDown = true;
SetSourceElement(e.Source);
e.Handled = true;
}
}
private void DragMoved()
{
Point CurrentPosition = Mouse.GetPosition(GraphPanel);
if (_sourceElement is VertexVisual)
{
VertexVisual vv = (VertexVisual)_sourceElement;
WayPoint prePoint = (WayPoint)vv.Node.Clone();
vv.Location = new Point((CurrentPosition.X - _positionOnSource.X) / Zoom, (CurrentPosition.Y - _positionOnSource.Y) / Zoom);
for (int i = 0; i < _edges.Count; i++)
{
if (_edges[i].NodeFrom == vv.Node)
{
_edges[i].PathData.StartPoint = vv.Node.Location;
}
if (_edges[i].NodeTo == vv.Node)
{
if (_edges[i].PathData.Segments[0] is LineSegment)
{
(_edges[i].PathData.Segments[0] as LineSegment).Point = vv.Node.Location;
}
else if (_edges[i].PathData.Segments[0] is BezierSegment)
{
(_edges[i].PathData.Segments[0] as BezierSegment).Point3 = vv.Node.Location;
}
}
_edges[i].InvalidateVisual();
}
}
else if (_sourceElement is Ellipse)
{
Ellipse el = (Ellipse)_sourceElement;
bool is_first = (bool)el.Tag;
Point newLocation = new Point((CurrentPosition.X - _positionOnSource.X) / Zoom, (CurrentPosition.Y - _positionOnSource.Y) / Zoom);
el.SetValue(Canvas.TopProperty, newLocation.Y * Zoom);
el.SetValue(Canvas.LeftProperty, newLocation.X * Zoom);
for (int i = 0; i < _edges.Count; i++)
{
if (_edges[i].IsSelected)
{
if (is_first)
{
(_edges[i].PathData.Segments[0] as BezierSegment).Point1 = newLocation;
}
else
{
(_edges[i].PathData.Segments[0] as BezierSegment).Point2 = newLocation;
}
_edges[i].InvalidateVisual();
return;
}
}
}
}
private void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Point position = e.GetPosition(GraphPanel);
WayPoint wp = new WayPoint()
{
Location = new Point(position.X / Zoom, position.Y / Zoom),
Name = (_vertexes.Count + 1).ToString()
};
VertexVisual vv = new VertexVisual(wp)
{
Zoom = Zoom
};
_vertexes.Add(vv);
OnPropertyChanged("Vertexes");
GraphPanel.Children.Add(vv);
}
private void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Point position = e.GetPosition(GraphPanel);
WayPoint wp = new WayPoint()
{
Location = new Point(position.X / Zoom, position.Y / Zoom),
Name = (_vertexes.Count + 1).ToString()
};
VertexVisual vv = new VertexVisual(wp)
{
Zoom = Zoom
};
_vertexes.Add(vv);
OnPropertyChanged("Vertexes");
GraphPanel.Children.Add(vv);
}
public RoadGraphConfigViewModel(ScenarioModel scenario)
{
if (scenario == null)
{
throw new ArgumentNullException("scenario is null");
}
GraphPanel = new Canvas();
GraphPanel.MouseLeftButtonUp += (s, e) => MouseLeftButtonUp(s, e);
GraphPanel.PreviewMouseLeftButtonDown += (s, e) => PreviewMouseLeftButtonDown(s, e);
GraphPanel.PreviewMouseLeftButtonUp += (s, e) => PreviewMouseLeftButtonUp(s, e);
GraphPanel.PreviewMouseMove += (s, e) => PreviewMouseMove(s, e);
Services = scenario.Services;
_vertexes = new List<VertexVisual>();
_edges = new List<EdgeVisual>();
RoadGraph = new Graph<WayPoint, PathFigure>();
if (scenario.RoadGraph != null)
{
foreach (var edge in scenario.RoadGraph.Edges)
{
var pathGeom = PathGeometry.CreateFromGeometry(PathGeometry.Parse(edge.Data));
EdgeVisual ev = new EdgeVisual(pathGeom.Figures.First())
{
NodeFrom = edge.Start,
NodeTo = edge.End,
Zoom = Zoom
};
_edges.Add(ev);
GraphPanel.Children.Add(ev);
}
foreach (var node in scenario.RoadGraph.Nodes)
{
//int in_count = 0, out_count = 0;
//foreach (var edge in RoadGraph.GetEdgesTo(node))
//{
// in_count++;
//}
//foreach (var edge in RoadGraph.GetEdgesFrom(node))
//{
// out_count++;
//}
VertexVisual vv = new VertexVisual(node)
{
//InCount = in_count,
//OutCount = out_count,
Zoom = Zoom
};
_vertexes.Add(vv);
GraphPanel.Children.Add(vv);
}
}
GraphPanel.Width = scenario.Map[0].Width;
GraphPanel.Height = scenario.Map[0].Height;
if (scenario.Map[0].Substrate!= null)
{
GraphPanel.Background = new ImageBrush(Helpers.Imaging.ImageManager.BitmapToBitmapImage(scenario.Map[0].Substrate));
}
}
public RoadGraphConfigViewModel(ScenarioModel scenario)
{
if (scenario == null)
{
throw new ArgumentNullException("scenario is null");
}
GraphPanel = new Canvas();
GraphPanel.MouseLeftButtonUp += (s, e) => MouseLeftButtonUp(s, e);
GraphPanel.PreviewMouseLeftButtonDown += (s, e) => PreviewMouseLeftButtonDown(s, e);
GraphPanel.PreviewMouseLeftButtonUp += (s, e) => PreviewMouseLeftButtonUp(s, e);
GraphPanel.PreviewMouseMove += (s, e) => PreviewMouseMove(s, e);
Services = scenario.Services;
_vertexes = new List <VertexVisual>();
_edges = new List <EdgeVisual>();
RoadGraph = new Graph <WayPoint, PathFigure>();
if (scenario.RoadGraph != null)
{
foreach (var edge in scenario.RoadGraph.Edges)
{
var pathGeom = PathGeometry.CreateFromGeometry(PathGeometry.Parse(edge.Data));
EdgeVisual ev = new EdgeVisual(pathGeom.Figures.First())
{
NodeFrom = edge.Start,
NodeTo = edge.End,
Zoom = Zoom
};
_edges.Add(ev);
GraphPanel.Children.Add(ev);
}
foreach (var node in scenario.RoadGraph.Nodes)
{
//int in_count = 0, out_count = 0;
//foreach (var edge in RoadGraph.GetEdgesTo(node))
//{
// in_count++;
//}
//foreach (var edge in RoadGraph.GetEdgesFrom(node))
//{
// out_count++;
//}
VertexVisual vv = new VertexVisual(node)
{
//InCount = in_count,
//OutCount = out_count,
Zoom = Zoom
};
_vertexes.Add(vv);
GraphPanel.Children.Add(vv);
}
}
GraphPanel.Width = scenario.Map[0].Width;
GraphPanel.Height = scenario.Map[0].Height;
if (scenario.Map[0].Substrate != null)
{
GraphPanel.Background = new ImageBrush(Helpers.Imaging.ImageManager.BitmapToBitmapImage(scenario.Map[0].Substrate));
}
}