protected void OnSelected(DiagramNode sender, RoutedEventArgs eventArguments)
{
if (Selected != null)
{
Selected(sender, eventArguments);
}
}
protected void OnCollapsed(DiagramNode sender, RoutedEventArgs eventArguments)
{
OnSelected(sender, eventArguments);
if (Collapsed != null)
{
Collapsed(this, eventArguments);
}
}
protected void OnExpanded(DiagramNode sender, RoutedEventArgs eventArguments)
{
OnSelected(sender, eventArguments);
if (Expanded != null)
{
Expanded(this, eventArguments);
}
}
private void NodeSelected(DiagramNode sender, RoutedEventArgs eventArguments)
{
if (frictionScrollViewer != null)
{
frictionScrollViewer.AutoScrollTarget = sender.Location;
}
//throw new NotImplementedException();
}
public void LoadDiagramNodes()
{
DiagramNode root = new DiagramNode("Root", null, "../Images/DiagramRootNode.png", "Dummy1View", "this is the root node");
DiagramNode a = new DiagramNode("A", root, "../Images/DiagramNode.png", "Dummy1View", "this is node A");
DiagramNode b = new DiagramNode("B", root, "../Images/DiagramNode.png", "Dummy1View", "this is node B");
DiagramNode c = new DiagramNode("C", root, "../Images/DiagramNode.png", "Dummy1View", "this is node C");
DiagramNode d = new DiagramNode("D", root, "../Images/DiagramNode.png", "Dummy1View", "this is node D");
DiagramNode e = new DiagramNode("E", root, "../Images/DiagramNode.png", "Dummy1View", "this is node E");
DiagramNode f = new DiagramNode("F", root, "../Images/DiagramNode.png", "Dummy1View", "this is node F");
DiagramNode a1 = new DiagramNode("A.1", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1");
DiagramNode a2 = new DiagramNode("A.2", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.2");
DiagramNode a3 = new DiagramNode("A.3", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.3");
DiagramNode a4 = new DiagramNode("A.4", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.4");
DiagramNode a1a = new DiagramNode("A.1.A", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.A");
DiagramNode a1b = new DiagramNode("A.1.B", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.B");
DiagramNode a1c = new DiagramNode("A.1.C", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.C");
DiagramNode a1d = new DiagramNode("A.1.D", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.D");
DiagramNode a1a1 = new DiagramNode("A.1.A.1", a1a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.A.1");
DiagramNode b1 = new DiagramNode("B.1", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.1");
DiagramNode b2 = new DiagramNode("B.2", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.2");
DiagramNode b3 = new DiagramNode("B.3", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.3");
DiagramNode b4 = new DiagramNode("B.4", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.4");
DiagramNode b1a = new DiagramNode("B.1.A", b1, "../Images/DiagramNode.png", "Dummy1View", "this is node B.1.A");
DiagramNode b1b = new DiagramNode("B.1.B", b1, "../Images/DiagramNode.png", "Dummy1View", "this is node B.1.B");
DiagramNode c1 = new DiagramNode("C.1", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.1");
DiagramNode c2 = new DiagramNode("C.2", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.2");
DiagramNode c3 = new DiagramNode("C.3", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.3");
DiagramNode c4 = new DiagramNode("C.4", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.4");
DiagramNode d1 = new DiagramNode("D.1", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.1");
DiagramNode d2 = new DiagramNode("D.2", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.2");
DiagramNode d3 = new DiagramNode("D.3", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.3");
DiagramNode d4 = new DiagramNode("D.4", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.4");
DiagramNode e1 = new DiagramNode("E.1", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.1");
DiagramNode e2 = new DiagramNode("E.2", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.2");
DiagramNode e3 = new DiagramNode("E.3", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.3");
DiagramNode e4 = new DiagramNode("E.4", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.4");
DiagramNode f1 = new DiagramNode("F.1", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.1");
DiagramNode f2 = new DiagramNode("F.2", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.2");
DiagramNode f3 = new DiagramNode("F.3", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.3");
DiagramNode f4 = new DiagramNode("F.4", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.4");
DiagramNode f5 = new DiagramNode("F.5", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.5");
DiagramNode f6 = new DiagramNode("F.6", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.6");
diagramViewer.RootNode = root;
diagramViewer.FrictionScrollViewer = this.sv;
}
public void LoadDiagramNodes()
{
DiagramNode root = new DiagramNode("Root", null, "../Images/DiagramRootNode.png", "Dummy1View","this is the root node");
DiagramNode a = new DiagramNode("A", root, "../Images/DiagramNode.png", "Dummy1View", "this is node A");
DiagramNode b = new DiagramNode("B", root, "../Images/DiagramNode.png", "Dummy1View", "this is node B");
DiagramNode c = new DiagramNode("C", root, "../Images/DiagramNode.png", "Dummy1View", "this is node C");
DiagramNode d = new DiagramNode("D", root, "../Images/DiagramNode.png", "Dummy1View", "this is node D");
DiagramNode e = new DiagramNode("E", root, "../Images/DiagramNode.png", "Dummy1View", "this is node E");
DiagramNode f = new DiagramNode("F", root, "../Images/DiagramNode.png", "Dummy1View", "this is node F");
DiagramNode a1 = new DiagramNode("A.1", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1");
DiagramNode a2 = new DiagramNode("A.2", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.2");
DiagramNode a3 = new DiagramNode("A.3", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.3");
DiagramNode a4 = new DiagramNode("A.4", a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.4");
DiagramNode a1a = new DiagramNode("A.1.A", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.A");
DiagramNode a1b = new DiagramNode("A.1.B", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.B");
DiagramNode a1c = new DiagramNode("A.1.C", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.C");
DiagramNode a1d = new DiagramNode("A.1.D", a1, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.D");
DiagramNode a1a1 = new DiagramNode("A.1.A.1", a1a, "../Images/DiagramNode.png", "Dummy1View", "this is node A.1.A.1");
DiagramNode b1 = new DiagramNode("B.1", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.1");
DiagramNode b2 = new DiagramNode("B.2", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.2");
DiagramNode b3 = new DiagramNode("B.3", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.3");
DiagramNode b4 = new DiagramNode("B.4", b, "../Images/DiagramNode.png", "Dummy1View", "this is node B.4");
DiagramNode b1a = new DiagramNode("B.1.A", b1, "../Images/DiagramNode.png", "Dummy1View", "this is node B.1.A");
DiagramNode b1b = new DiagramNode("B.1.B", b1, "../Images/DiagramNode.png", "Dummy1View", "this is node B.1.B");
DiagramNode c1 = new DiagramNode("C.1", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.1");
DiagramNode c2 = new DiagramNode("C.2", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.2");
DiagramNode c3 = new DiagramNode("C.3", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.3");
DiagramNode c4 = new DiagramNode("C.4", c, "../Images/DiagramNode.png", "Dummy1View", "this is node C.4");
DiagramNode d1 = new DiagramNode("D.1", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.1");
DiagramNode d2 = new DiagramNode("D.2", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.2");
DiagramNode d3 = new DiagramNode("D.3", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.3");
DiagramNode d4 = new DiagramNode("D.4", d, "../Images/DiagramNode.png", "Dummy1View", "this is node D.4");
DiagramNode e1 = new DiagramNode("E.1", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.1");
DiagramNode e2 = new DiagramNode("E.2", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.2");
DiagramNode e3 = new DiagramNode("E.3", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.3");
DiagramNode e4 = new DiagramNode("E.4", e, "../Images/DiagramNode.png", "Dummy1View", "this is node E.4");
DiagramNode f1 = new DiagramNode("F.1", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.1");
DiagramNode f2 = new DiagramNode("F.2", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.2");
DiagramNode f3 = new DiagramNode("F.3", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.3");
DiagramNode f4 = new DiagramNode("F.4", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.4");
DiagramNode f5 = new DiagramNode("F.5", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.5");
DiagramNode f6 = new DiagramNode("F.6", f, "../Images/DiagramNode.png", "Dummy1View", "this is node F.6");
diagramViewer.RootNode = root;
diagramViewer.FrictionScrollViewer = this.sv;
}
private void NodeExpanded(DiagramNode sender, RoutedEventArgs eventArguments)
{
rootNode.Location = new Point(
(double)GetValue(Canvas.ActualWidthProperty) / 2.0,
(double)GetValue(Canvas.ActualHeightProperty) / 2.0);
MakeChildrenVisible(sender);
if (sender.DiagramParent != null)
{
sender.DiagramParent.Visibility = Visibility.Visible;
foreach (DiagramNode sibling in sender.DiagramParent.DiagramChildren)
{
if (sibling != sender)
{
sibling.Visibility = Visibility.Collapsed;
}
}
if (sender.DiagramParent.DiagramParent != null)
{
sender.DiagramParent.DiagramParent.Visibility = Visibility.Collapsed;
}
}
if (sender.DiagramChildren.Count > 0)
{
double startAngle = CalculateStartAngle(sender);
double angleBetweenChildren = (sender == rootNode ? Math.PI * 2.0 : Math.PI) / ((double)sender.DiagramChildren.Count - 0);
double legDistance = CalculateLegDistance(sender, angleBetweenChildren);
for (int i = 0; i < sender.DiagramChildren.Count; ++i)
{
DiagramNode child = sender.DiagramChildren[i];
child.Selected += new NodeStateChangedHandler(NodeSelected);
child.Expanded += new NodeStateChangedHandler(NodeExpanded);
child.Collapsed += new NodeStateChangedHandler(NodeCollapsed);
Point parentLocation = sender.Location;
child.Location = new Point(
parentLocation.X + Math.Cos(startAngle + angleBetweenChildren * (double)i) * legDistance,
parentLocation.Y + Math.Sin(startAngle + angleBetweenChildren * (double)i) * legDistance);
foreach (DiagramNode childsChild in child.DiagramChildren)
{
childsChild.Visibility = Visibility.Collapsed;
}
}
}
BaseCanvas.InvalidateArrange();
BaseCanvas.UpdateLayout();
BaseCanvas.InvalidateVisual();
}
private void NodeCollapsed(DiagramNode sender, RoutedEventArgs eventArguments)
{
foreach (DiagramNode child in sender.DiagramChildren)
{
child.Visibility = Visibility.Collapsed;
foreach (DiagramNode grandChildren in child.DiagramChildren)
{
grandChildren.Visibility = Visibility.Collapsed;
}
}
BaseCanvas.InvalidateArrange();
BaseCanvas.UpdateLayout();
BaseCanvas.InvalidateVisual();
}
public DiagramNode(String nodeName, DiagramNode treeParent,
string imageUrl, string navigateTo, string itemDescription)
{
InitializeComponent();
this.navigateTo = navigateTo;
this.ToolTip = itemDescription;
this.diagramParent = treeParent;
this.NodeName.Content = nodeName;
if (treeParent != null)
{
this.diagramParent.diagramChildren.Add(this);
}
this.btnNavigate.Tag = imageUrl;
}
public DiagramNode(String nodeName, DiagramNode treeParent,
string imageUrl, string navigateTo, string itemDescription)
{
InitializeComponent();
this.navigateTo = navigateTo;
this.ToolTip = itemDescription;
this.diagramParent = treeParent;
this.NodeName.Content = nodeName;
if (treeParent != null)
{
this.diagramParent.diagramChildren.Add(this);
}
this.btnNavigate.Tag = imageUrl;
}
private void MakeChildrenVisible(DiagramNode sender)
{
foreach (DiagramNode child in sender.DiagramChildren)
{
if (!BaseCanvas.Children.Contains(child))
{
BaseCanvas.Children.Add(child);
}
else
{
child.Visibility = Visibility.Visible;
}
}
BaseCanvas.InvalidateArrange();
BaseCanvas.UpdateLayout();
BaseCanvas.InvalidateVisual();
}
private static double CalculateLegDistance(DiagramNode sender, double angleBetweenChildren)
{
double legDistance = 1.0;
double childToChildMinDistance = 1.0;
foreach (DiagramNode child in sender.DiagramChildren)
{
legDistance = Math.Max(legDistance, sender.BoundingCircle + child.BoundingCircle);
foreach (DiagramNode otherChild in sender.DiagramChildren)
{
if (otherChild != child)
{
childToChildMinDistance = Math.Max(childToChildMinDistance, child.BoundingCircle + otherChild.BoundingCircle);
}
}
}
legDistance = Math.Max(
legDistance,
(childToChildMinDistance / 2.0) / Math.Sin(angleBetweenChildren / 2.0));
return legDistance;
}
protected override void OnRender(System.Windows.Media.DrawingContext dc)
{
base.OnRender(dc);
foreach (UIElement uiElement in Children)
{
if (uiElement is DiagramNode)
{
DiagramNode node = (DiagramNode)uiElement;
if (node.Visibility == Visibility.Visible)
{
if (node.DiagramParent != null &&
node.DiagramParent.Visibility == Visibility.Visible)
{
dc.DrawLine(new Pen(Brushes.Black, 2.0),
node.Location, node.DiagramParent.Location);
}
}
}
}
}
private double CalculateStartAngle(DiagramNode node)
{
if (node == rootNode)
{
return(0.0);
}
else
{
Vector parentToNode = node.Location - node.DiagramParent.Location;
parentToNode.Normalize();
Vector leftToRight = new Vector(1.0, 0.0);
double angle = Vector.AngleBetween(parentToNode, leftToRight);
if (angle < 0)
{
angle = 360 - angle;
}
if (node.DiagramChildren.Count > 1)
{
if (node.Location.Y < node.DiagramParent.Location.Y)
{
if (node.Location.X > node.DiagramParent.Location.X)
{
angle -= 180;
}
else
{
angle -= 270;
}
}
else
{
angle -= 90;
}
}
return(Math.PI * angle / 180.0);
}
}
private static double CalculateLegDistance(DiagramNode sender, double angleBetweenChildren)
{
double legDistance = 1.0;
double childToChildMinDistance = 1.0;
foreach (DiagramNode child in sender.DiagramChildren)
{
legDistance = Math.Max(legDistance, sender.BoundingCircle + child.BoundingCircle);
foreach (DiagramNode otherChild in sender.DiagramChildren)
{
if (otherChild != child)
{
childToChildMinDistance = Math.Max(childToChildMinDistance, child.BoundingCircle + otherChild.BoundingCircle);
}
}
}
legDistance = Math.Max(
legDistance,
(childToChildMinDistance / 2.0) / Math.Sin(angleBetweenChildren / 2.0));
return(legDistance);
}
private double CalculateStartAngle(DiagramNode node)
{
if (node == rootNode)
{
return 0.0;
}
else
{
Vector parentToNode = node.Location - node.DiagramParent.Location;
parentToNode.Normalize();
Vector leftToRight = new Vector(1.0, 0.0);
double angle = Vector.AngleBetween(parentToNode, leftToRight);
if (angle < 0)
angle = 360 - angle;
if (node.DiagramChildren.Count > 1)
{
if (node.Location.Y < node.DiagramParent.Location.Y)
{
if (node.Location.X > node.DiagramParent.Location.X)
angle -= 180;
else
angle -= 270;
}
else
{
angle -= 90;
}
}
return (Math.PI * angle / 180.0);
}
}
private void NodeSelected(DiagramNode sender, RoutedEventArgs eventArguments)
{
if (frictionScrollViewer != null)
frictionScrollViewer.AutoScrollTarget = sender.Location;
//throw new NotImplementedException();
}
protected void OnCollapsed(DiagramNode sender, RoutedEventArgs eventArguments)
{
OnSelected(sender, eventArguments);
if (Collapsed != null)
Collapsed(this, eventArguments);
}
private void NodeExpanded(DiagramNode sender, RoutedEventArgs eventArguments)
{
rootNode.Location = new Point(
(double)GetValue(Canvas.ActualWidthProperty) / 2.0,
(double)GetValue(Canvas.ActualHeightProperty) / 2.0);
MakeChildrenVisible(sender);
if (sender.DiagramParent != null)
{
sender.DiagramParent.Visibility = Visibility.Visible;
foreach (DiagramNode sibling in sender.DiagramParent.DiagramChildren)
{
if (sibling != sender)
sibling.Visibility = Visibility.Collapsed;
}
if (sender.DiagramParent.DiagramParent != null)
sender.DiagramParent.DiagramParent.Visibility = Visibility.Collapsed;
}
if (sender.DiagramChildren.Count > 0)
{
double startAngle = CalculateStartAngle(sender);
double angleBetweenChildren = (sender == rootNode ? Math.PI * 2.0 : Math.PI) / ((double)sender.DiagramChildren.Count - 0);
double legDistance = CalculateLegDistance(sender, angleBetweenChildren);
for (int i = 0; i < sender.DiagramChildren.Count; ++i)
{
DiagramNode child = sender.DiagramChildren[i];
child.Selected += new NodeStateChangedHandler(NodeSelected);
child.Expanded += new NodeStateChangedHandler(NodeExpanded);
child.Collapsed += new NodeStateChangedHandler(NodeCollapsed);
Point parentLocation = sender.Location;
child.Location = new Point(
parentLocation.X + Math.Cos(startAngle + angleBetweenChildren * (double)i) * legDistance,
parentLocation.Y + Math.Sin(startAngle + angleBetweenChildren * (double)i) * legDistance);
foreach (DiagramNode childsChild in child.DiagramChildren)
{
childsChild.Visibility = Visibility.Collapsed;
}
}
}
BaseCanvas.InvalidateArrange();
BaseCanvas.UpdateLayout();
BaseCanvas.InvalidateVisual();
}
private void NodeCollapsed(DiagramNode sender, RoutedEventArgs eventArguments)
{
foreach (DiagramNode child in sender.DiagramChildren)
{
child.Visibility = Visibility.Collapsed;
foreach (DiagramNode grandChildren in child.DiagramChildren)
{
grandChildren.Visibility = Visibility.Collapsed;
}
}
BaseCanvas.InvalidateArrange();
BaseCanvas.UpdateLayout();
BaseCanvas.InvalidateVisual();
}
private void MakeChildrenVisible(DiagramNode sender)
{
foreach (DiagramNode child in sender.DiagramChildren)
{
if (!BaseCanvas.Children.Contains(child))
BaseCanvas.Children.Add(child);
else
child.Visibility = Visibility.Visible;
}
BaseCanvas.InvalidateArrange();
BaseCanvas.UpdateLayout();
BaseCanvas.InvalidateVisual();
}
protected void OnExpanded(DiagramNode sender, RoutedEventArgs eventArguments)
{
OnSelected(sender, eventArguments);
if (Expanded != null)
Expanded(this, eventArguments);
}
protected void OnSelected(DiagramNode sender, RoutedEventArgs eventArguments)
{
if (Selected != null)
Selected(sender, eventArguments);
}