protected void GoToPoint(Point point)
{
Rect actualViewport = new Rect(0, 0, ActualWidth, ActualHeight);
Rect boundaries = _diagram.Boundaries;
Rect viewport = _diagram.Viewport;
double scale;
double scaleX = actualViewport.Width / boundaries.Width;
double scaleY = actualViewport.Height / boundaries.Height;
scale = scaleX > scaleY ? scaleY : scaleX;
Vector offset = new Vector(-boundaries.Left, -boundaries.Top);
Rect viewerBoundaries = new Rect(0, 0, boundaries.Width * scale, boundaries.Height * scale);
if (point.Y > viewerBoundaries.Height || point.X > viewerBoundaries.Width)
return;
Point diagramPoint = new Point(point.X / scale + boundaries.Left, point.Y / scale + boundaries.Top);
Vector newViewOffset = new Vector();
newViewOffset.X = diagramPoint.X - viewport.Width / 2;
newViewOffset.Y = diagramPoint.Y - viewport.Height / 2;
using (DiagramUpdateLock locker = new DiagramUpdateLock(_diagram))
{
_diagram.XViewOffset = -newViewOffset.X;
_diagram.YViewOffset = -newViewOffset.Y;
}
}
public void LoadFromXDocument(XDocument xDoc)
{
XElement xDiag = xDoc.Element("Gt.Diagram");
if (xDiag == null && xDoc.Root != null)
{
xDiag = xDoc.Root.Element("Gt.Diagram");
}
if (xDiag == null)
return;
using (DiagramUpdateLock locker = new DiagramUpdateLock(_diagram))
{
LoadFromXElement(xDiag);
}
}
void UpdateDiagramStyle()
{
using (DiagramUpdateLock locker = new DiagramUpdateLock(_diagram))
{
foreach (var node in _diagram.Nodes)
{
var networkNode = _network.FindById(Convert.ToInt32(node.UserData)) as NetworkNode;
if (networkNode != null)
{
NodeAdded(node, networkNode);
}
}
foreach (var edge in _diagram.Edges)
{
var networkEdge = _network.Edges.FindById(Convert.ToInt32(edge.UserData)) as NetworkEdge;
if (networkEdge != null)
{
LinkAdded(edge, networkEdge);
}
}
}
}
public void RebuildDiagram()
{
_diagram.ClearAll();
using (DiagramUpdateLock updateLock = new DiagramUpdateLock(_diagram))
{
CreateVisual();
ArrangeVisual();
}
}
public void ClearAll()
{
using (var diagramLock = new DiagramUpdateLock(this))
{
_nodes.Clear();
_edges.Clear();
_selection.Clear();
}
}
private void UseSelector()
{
if (Selector == null)
return;
using (DiagramUpdateLock locker = new DiagramUpdateLock(_diagram))
{
Geometry selectorGeometry = Selector.Geometry;
_diagram.Selection.Clear();
foreach (var node in _diagram.Nodes)
{
if (node.Geometry == null || node.NeedRecalc)
node.CalculateGeometry();
if (node.Geometry == null)
continue;
if (GeometryUtils.AreIntersectOrContain(node.Geometry, node.BorderPen,
selectorGeometry, GlobalData.SelectorBorderPen))
{
_diagram.Selection.Add(node);
}
}
Selector = null;
}
}
