public void LoadNode(int nodeID, int linkID, String nodeName, String nodeType, List<Function> nodeFunctions, String nodeImagePath, Boolean xyFromDB, ref int startX, ref int startY, Dictionary<int, DiagramNode> docNodes)
{
int index = globalIL.Images.IndexOfKey(nodeImagePath);
if (index < 0)
{
index = globalIL.Images.IndexOfKey(nodeType);
if (index < 0)
{
if (globalIL.Images.Count >= 1)
{
StringEnumerator keys = globalIL.Images.Keys.GetEnumerator();
keys.MoveNext();
index = globalIL.Images.IndexOfKey(keys.Current); // just use first key
}
else
{
// replace with debug logging log4net
MessageBox.Show("Could not load image at: " + nodeImagePath + "Diagram.cs line 499");
return;
}
}
}
DiagramNode newNode = null;
if (xyFromDB == false)
{
Point diskPoint = this.GetPoint(nodeID);
if (diskPoint != Point.Empty) // XY is from disk
{
newNode = new DiagramNode(labelFontSize, nodeID, linkID, nodeName, nodeType, index, diskPoint);
newNode.Functions = nodeFunctions;
}
else // not found, use base values
{
newNode = new DiagramNode(labelFontSize, nodeID, linkID, nodeName, nodeType, index, new PointF(startX, startY));
newNode.Functions = nodeFunctions;
SaveNode(newNode, false); // save to diagram XML
startX += 40; // and increment the base start
}
}
else // XY id from DB
{
// use transform
startX = (int)m_coordinateTransformer.RetrieveX(startX);
startY = (int)m_coordinateTransformer.RetrieveY(startY);
newNode = new DiagramNode(labelFontSize, nodeID, linkID, nodeName, nodeType, index, new PointF(startX, startY));
newNode.Functions = nodeFunctions;
}
// set tooltip to help with user input
newNode.ToolTipText = "To link: Click and drag on a node's image to another image" + '\n' + "To move: Click and drag on a node's text label";
docNodes.Add(nodeID, newNode);
this.Document.Add(newNode);
}
// Convert dragged objects into go objects, if applicable
private GoObject GetGoObjectFromDrag(DragEventArgs evt)
{
IDataObject data = evt.Data;
List<ProcessingNode> treeNodes = (List<ProcessingNode>)data.GetData(typeof(List<ProcessingNode>));
if (treeNodes != null && treeNodes is List<ProcessingNode>)
{
Point screenPnt = new Point(evt.X, evt.Y);
Point viewPnt = PointToClient(screenPnt);
PointF convertedForDocument = ConvertViewToDoc(viewPnt);
docPnt = new Point((int)convertedForDocument.X, (int)convertedForDocument.Y);
if (treeNodes.Count > 0)
{
ProcessingNode first = treeNodes[0];
int imageIndex = this.ImageList.Images.Keys.IndexOf(first.NodeType);
if (imageIndex < 0)
{
imageIndex = this.ImageList.Images.Keys.IndexOf(first.ImageKey);
if (imageIndex < 0)
{
return null;
}
}
DiagramNode node = new DiagramNode(
labelFontSize,
first.NodeID,
first.Name,
first.NodeType,
imageIndex,
//first.TreeView.ImageList,
//imageIndex,
docPnt);
return node;
}
return null;
}
else return null;
}
private void SaveNode(DiagramNode dgNode , Boolean parameterUpdateAfterMoveFunction)
{
String newX = ((int)dgNode.Location.X).ToString();
String newY = ((int)dgNode.Location.Y).ToString();
RecordXYToXML(dgNode.NodeID, dgNode.Functions, newX, newY, parameterUpdateAfterMoveFunction);
}
private void DeleteDiagramNode(DiagramNode node)
{
StreamReader xmlStream = LoadDiagramsXML();
XmlNode delete = currentDoc.SelectSingleNode(String.Format("/Nodes/Node[@ID='{1}'][@DiagramName='{0}'][@RootID='{2}']", diagramName, node.NodeID, RootID));
if (delete != null && root != null)
{
root.RemoveChild(delete);
}
UnloadDiagramsXML(xmlStream, true);
}