/// <summary>
/// Layouts the nodes.
/// </summary>
public void LayoutNodes()
{
int nodeYSeperation = NodeY + MinNodeYSeperation;
int nodeXSeperation = NodeX + MinNodeXSeperation;
int levelXMax = nodeXSeperation * maxLevelNodes;
// Sort nodes for layout by level
TreeGraph.Sort(PeopleGraphNode.SortByYStart);
// Layout the nodes
int currentY = -1;
int currentX = -01;
int levelNodeOffset = 0;
for (int i = 0; i < TreeGraph.Count; i++)
{
PeopleGraphNode item = TreeGraph[i];
// check for chnaged level
if (item.YStart > currentY)
{
currentY = item.YStart;
currentX = -1;
levelNodeOffset = ((maxLevelNodes * nodeXSeperation) - (maxXNodes[currentY] * nodeXSeperation)) / maxXNodes[currentY];
}
// Get vertical start location
int offsetY = item.YStart * nodeYSeperation;
// Get the next horizontal offset and save
currentX += 1;
// Do the actual X layout
int offsetX = 0;
if (maxXNodes[currentY] == 1)
{
offsetX = (levelXMax - nodeXSeperation) / 2;
}
else
{
offsetX = (nodeXSeperation * currentX) + (levelNodeOffset * currentX);
}
// Save the location for use when laying out the edges
PeopleGraphNode itemTemp = TreeGraph.FirstOrDefault(ie => ie.NodeHLink == item.NodeHLink);
itemTemp.XStart = offsetX;
itemTemp.YStart = offsetY;
TreeGraph[i] = itemTemp;
}
// Allow for spacing TODO make more flexiable
CanvasHeight = nodeYSeperation * numLevels;
CanvasWidth = nodeXSeperation * maxLevelNodes;
}
/// <summary>
/// Pres the layout.
/// </summary>
public void LayoutPreStart()
{
// Get max horizontal and max/min level
minLevel = 0;
maxLevel = 0;
maxLevelNodes = 0;
foreach (var item in maxXNodes)
{
if (item.Key < minLevel)
{
minLevel = item.Key;
}
if (item.Key > maxLevel)
{
maxLevel = item.Key;
}
if (item.Value > maxLevelNodes)
{
maxLevelNodes = item.Value;
}
}
// Convert relative levels to absolute starting at 0 Allows for easy layout on canvas
int numNegativeLevels = Math.Abs(minLevel);
numLevels = (Math.Abs(minLevel) + maxLevel) + 1; // Plus 1 for the starting zero level
for (int i = 0; i < TreeGraph.Count; i++)
{
PeopleGraphNode t = TreeGraph[i];
t.YStart = TreeGraph[i].YStart + numNegativeLevels;
TreeGraph[i] = t;
}
// offset the maxnodes list to match the TreeGraph absolute levels
SortedDictionary <int, int> tempMaxX = new SortedDictionary <int, int>();
foreach (var item in maxXNodes)
{
tempMaxX.Add(item.Key + numNegativeLevels, maxXNodes[item.Key]);
}
maxXNodes = tempMaxX;
}
///// <summary>
///// Draws the graph.
///// </summary>
//public void DrawTheGraph()
//{
// Canvas theGraph = new Canvas();
// // Draw the edges for (int i = 0; i < Edges.Count; i++) {
// theGraph.Children.Add(Edges[i].TheLine); }
// // Draw the nodes for (int i = 0; i < TreeGraph.Count; i++) { PeopleGraphNode item = TreeGraph[i];
// // Assume person PersonModel t = DV.PersonDV.GetModel(item.nodeHLink.HLinkKey);
// if (t.HLink.Valid == true) { PersonCardSmall tt = new PersonCardSmall { DataContext = t,
// Background = new SolidColorBrush(Colors.AliceBlue), }; theGraph.Children.Add(tt);
// tt.SetValue(Canvas.LeftProperty, item.xStart); tt.SetValue(Canvas.TopProperty,
// item.yStart); } else { // Assume Family FamilyModel tf =
// DV.FamilyDV.GetModel(item.nodeHLink.HLinkKey); FamilyCardSmall tt = new FamilyCardSmall {
// DataContext = tf, Background = new SolidColorBrush(Colors.AliceBlue), };
// theGraph.Children.Add(tt);
// tt.SetValue(Canvas.LeftProperty, item.xStart); tt.SetValue(Canvas.TopProperty,
// item.yStart); } }
// // Display it
// GraphCanvas = theGraph;
//}
/// <summary>
/// Gets the graph.
/// </summary>
/// <param name="argHLink">
/// The argument h link.
/// </param>
public void GetGraph()
{
// Get people related to personObject person (within 3 jumps and starting at level zero
// (the middlish point))
nodeVisitQueue.Enqueue(new NextModel()
{
HLink = StartHLink, JumpsFromStartNode = 3, Level = 0
});
PeopleGraphNode theNode;
do
{
NextModel t = nodeVisitQueue.Dequeue();
// Handle people
if (t.HLink.GetType() == typeof(HLinkPersonModel))
{
// Add person to graph
theNode = new PeopleGraphNode
{
NodeHLink = (t.HLink as HLinkPersonModel).DeRef.HLink,
YStart = t.Level,
};
TreeGraph.Add(theNode);
// Add one to the level
if (!maxXNodes.ContainsKey(t.Level))
{
maxXNodes.Add(t.Level, 0);
}
// Add one to the level
maxXNodes[t.Level] = maxXNodes[t.Level] + 1;
AddVisited((t.HLink as HLinkPersonModel).DeRef.HLinkKey, false);
if (t.JumpsFromStartNode > 0)
{
// get parents
AddHLink((t.HLink as HLinkPersonModel).DeRef.GChildOf, t.HLink, t.JumpsFromStartNode, t.Level - 1);
// get families
foreach (HLinkFamilyModel item in (t.HLink as HLinkPersonModel).DeRef.GParentInRefCollection)
{
AddHLink(t.HLink, item, t.JumpsFromStartNode, t.Level + 1);
}
}
}
// Handle families
if (t.HLink.GetType() == typeof(HLinkFamilyModel))
{
// Add Family
theNode = new PeopleGraphNode
{
NodeHLink = (t.HLink as HLinkFamilyModel).DeRef.HLink,
YStart = t.Level,
};
TreeGraph.Add(theNode);
// Add one to the level
if (!maxXNodes.ContainsKey(t.Level))
{
maxXNodes.Add(t.Level, 0);
}
// Add one to the level
maxXNodes[t.Level] = maxXNodes[t.Level] + 1;
AddVisited((t.HLink as HLinkFamilyModel).DeRef.HLinkKey, false);
if (t.JumpsFromStartNode > 0)
{
// Add Mother and Father at previous level
AddHLink((t.HLink as HLinkFamilyModel).DeRef.GMother, t.HLink, t.JumpsFromStartNode, t.Level - 1);
AddHLink((t.HLink as HLinkFamilyModel).DeRef.GFather, t.HLink, t.JumpsFromStartNode, t.Level - 1);
// Add children at next level
foreach (HLinkPersonModel item in (t.HLink as HLinkFamilyModel).DeRef.GChildRefCollection)
{
AddHLink(t.HLink, item, t.JumpsFromStartNode, t.Level + 1);
}
}
}
}while (nodeVisitQueue.Count > 0);
}