/// <summary>
/// called when loading the group
/// </summary>
/// <param name="item"></param>
public void ImportMathItem(MathExpItem item)
{
bLoading = true;
this.Name = item.Name;
this.Location = item.Location;
this.Size = item.Size;
this.mathExp = item.MathExpression;
if (Site != null)
{
Site.Name = item.Name;
}
mathExp.GenerateInputVariables();
mathExp.PrepareDrawInDiagram();
if (OutputPorts != null)
{
for (int i = 0; i < OutputPorts.Length; i++)
{
OutputPorts[i].Owner = this;
OutputPorts[i].Label.Visible = false;
OutputPorts[i].RestoreLocation();
}
}
createImage();
bLoading = false;
}
public void LoadMathExpression(IMathExpression data)
{
mathExp = data;
this.Name = data.Name;
this.Site.Name = data.Name;
mathExp.PrepareDrawInDiagram();
//
createImage();
}
/// <summary>
/// new load or re-load.
/// this control must already be added to the viewer (DiagramViewer).
/// It generates ports for all variables
/// </summary>
/// <param name="data">the result of lower level editing</param>
public void LoadData(IMathExpression data)
{
bLoading = true;
DiagramViewer dv = this.Parent as DiagramViewer;
VariableList currentVariables = null;
IVariable currOutVar = null;
if (mathExp != null)
{
currOutVar = mathExp.OutputVariable;
currentVariables = mathExp.InputVariables;
}
mathExp = data;
if (mathExp == null)
{
mathExp = new MathNodeRoot();
}
mathExp.ClearFocus();
//1. find out all unique and non-local variables
VariableList _portVariables = mathExp.InputVariables;
//2. remove removed ports
if (currentVariables != null)
{
foreach (IVariable v in currentVariables)
{
if (_portVariables.GetVariableById(v.ID) == null)
{
//remove port and nodes
List <Control> cs = new List <Control>();
foreach (Control c in dv.Controls)
{
LinkLineNodeInPort p = c as LinkLineNodeInPort;
if (p != null)
{
if (p.PortID == v.ID)
{
cs.Add(p);
cs.Add(p.Label);
ILinkLineNode prev = p.PrevNode;
while (prev != null)
{
if (prev is LinkLineNodePort)
{
break;
}
cs.Add((Control)prev);
prev = prev.PrevNode;
}
break;
}
}
}
foreach (Control c in cs)
{
dv.Controls.Remove(c);
}
}
}
}
List <Control> newControls = new List <Control>();
List <LinkLineNodeInPort> newInPorts = new List <LinkLineNodeInPort>();
//3.create new ports
foreach (IVariable v in _portVariables)
{
if (currentVariables == null || currentVariables.GetVariableById(v.ID) == null)
{
if (data.IsContainer)
{
//create a new variable instance
MathNodeRoot r = new MathNodeRoot();
((MathNode)v).root.CopyAttributesToTarget(r);
r[1] = new MathNodeVariable(r);
IVariable vi = (IVariable)r[1];
vi.VariableType = (RaisDataType)v.VariableType.Clone();
vi.VariableName = v.VariableName;
vi.SubscriptName = v.SubscriptName;
vi.ResetID(v.ID);
vi.InPort = new LinkLineNodeInPort(vi);
vi.InPort.SetPortOwner(vi);
vi.InPort.Owner = this;
newControls.Add(vi.InPort);
newControls.Add(vi.InPort.Label);
vi.InPort.CheckCreatePreviousNode();
newControls.Add((Control)vi.InPort.PrevNode);
newInPorts.Add(vi.InPort);
}
else
{
v.InPort = new LinkLineNodeInPort(v);
v.InPort.Owner = this;
newControls.Add(v.InPort);
newControls.Add(v.InPort.Label);
v.InPort.CheckCreatePreviousNode();
newControls.Add((Control)v.InPort.PrevNode);
newInPorts.Add(v.InPort);
}
}
}
if (newInPorts.Count > 0)
{
int dn = this.Width / (newInPorts.Count + 1);
for (int i = 0; i < newInPorts.Count; i++)
{
newInPorts[i].Position = i * dn + dn;
newInPorts[i].Left = this.Left + newInPorts[i].Position;
newInPorts[i].SaveLocation();
newInPorts[i].PrevNode.Left = newInPorts[i].Left;
}
}
//3. re-map to existing ports
if (currOutVar != null && currOutVar.OutPorts != null)
{
//if port exists then re-use it
mathExp.OutputVariable.OutPorts = currOutVar.OutPorts;
for (int i = 0; i < mathExp.OutputVariable.OutPorts.Length; i++)
{
mathExp.OutputVariable.OutPorts[i].SetPortOwner(mathExp.OutputVariable);
//if linking exists then re-establish it
if (currOutVar.OutPorts[i].LinkedPortID != 0)
{
//find the variable
if (dv != null)
{
IVariable v = dv.FindVariableById(currOutVar.OutPorts[i].LinkedPortID);
if (v != null)
{
v.InPort.LinkedPortID = mathExp.OutputVariable.ID;
}
}
}
}
}
else
{
//for a new load, create the output port
mathExp.OutputVariable.OutPorts = new LinkLineNodeOutPort[] { new LinkLineNodeOutPort(mathExp.OutputVariable) };
mathExp.OutputVariable.OutPorts[0].CheckCreateNextNode();
////use the default position
mathExp.OutputVariable.OutPorts[0].Position = this.Width / 2;
}
for (int i = 0; i < mathExp.OutputVariable.OutPorts.Length; i++)
{
mathExp.OutputVariable.OutPorts[i].Owner = this;
mathExp.OutputVariable.OutPorts[i].Label.Visible = false;
mathExp.OutputVariable.OutPorts[i].SaveLocation();
}
if (!(currOutVar != null && currOutVar.OutPorts != null))
{
for (int i = 0; i < mathExp.OutputVariable.OutPorts.Length; i++)
{
//for a new load, set default postion for the empty linking node
((Control)(mathExp.OutputVariable.OutPorts[i].NextNode)).Location = mathExp.OutputVariable.OutPorts[i].DefaultNextNodePosition();
//add new controls
newControls.Add(mathExp.OutputVariable.OutPorts[i]);
newControls.Add((Control)mathExp.OutputVariable.OutPorts[i].NextNode);
newControls.Add(mathExp.OutputVariable.OutPorts[i].Label);
}
}
//add the new controls
if (this.Parent != null && newControls.Count > 0)
{
Control[] a = new Control[newControls.Count];
newControls.CopyTo(a);
this.Parent.Controls.AddRange(a);
}
mathExp.PrepareDrawInDiagram();
//
createImage();
bLoading = false;
}
