private void SetGraph(GD.Graph graph)
{
try
{
string activeItemName = graph.UserData as string;
// Can't work out how to set the caption, without also setting
// the tab text, which we do not want. This at least tells us.
lblCaption.Text = activeItemName;
this.ToolTipText = string.Format("{0} [{1}]",
GetID(), activeItemName);
// This can fail with 'trim a spline' error.
_viewer.Graph = graph;
_viewer.Visible = true;
_viewer.ZoomFraction = 0.1;
//_viewer.ZoomMode
// Heuristic adjustment.
_defaultZoom = 1.0f;
if (graph.NodeCount <= 1)
{
_defaultZoom = 0.35f;
}
else if (graph.NodeCount <= 2)
{
_defaultZoom = 0.45f;
}
else if (graph.NodeCount <= 3)
{
_defaultZoom = 0.6f;
}
else if (graph.NodeCount <= 4)
{
_defaultZoom = 0.8f;
}
if (oldnodecount == graph.NodeCount)
{
_defaultZoom = olddefaultzoom;
}
_viewer.ZoomF = _defaultZoom;
if (1==1)
{
olddefaultzoom = (float)_viewer.ZoomF;
oldnodecount = _viewer.Graph.NodeCount;
}
}
catch (InvalidOperationException)
{
_logView.LogStr("GLEE Layout error, try again with different aspect ratio");
_failed = true;
}
// Show these, incase we've failed. Will be hidden if all ok.
if (_failed)
{
lblPleaseWait.Text = "Layout failed";
btnRefresh.Visible = true;
}
}
private bool Hilite(GD.Node node)
{
bool result = false;
if (_hiliteNodes.ContainsKey(node)) return result;
_hiliteNodes.Add(node, new AffectedNode(node.Attr.Color, node.Attr.Fillcolor, node.Attr.Fontcolor));
Color color = _options.HiliteColor;
GD.Color gcolor = new GD.Color(color.A, color.R, color.G, color.B);
node.Attr.Fillcolor = gcolor;
color = _options.HiliteLineColor;
gcolor = new GD.Color(color.A, color.R, color.G, color.B);
// We need access to the builder here :/
if (_activeItem != null && _builders.ContainsKey(_activeItem))
{
BaseGraphBuilder builder = _builders[_activeItem];
foreach (KeyValuePair<string, List<object>> pair in builder.AddedEdges)
{
foreach (GD.Edge edge in pair.Value)
{
if (edge.Source == node.Id || edge.Target == node.Id)
{
// Abuse the userdata to hang onto the old color.
edge.UserData = new AffectedEdge(edge.Attr.Color);
edge.Attr.Color = gcolor;
}
}
}
result = true;
}
return result;
}
private List<BaseItem> GetItemList(GD.Node node)
{
List<BaseItem> list = new List<BaseItem>();
if (node != null && node.UserData != null)
{
if (node.UserData is BaseItem)
{
BaseItem item = node.UserData as BaseItem;
list.Add(item);
}
else if (node.UserData is List<BaseItem>)
{
list = node.UserData as List<BaseItem>;
}
else _logView.Debug("GetItemList reports invalid UserData");
}
return list;
}
private BaseItem GetItem(GD.Node node)
{
BaseItem item = null;
if (node != null && node.UserData != null)
{
if (node.UserData is BaseItem)
{
item = node.UserData as BaseItem;
}
else if (node.UserData is List<BaseItem>)
{
// Iterate over nodes with multiple items.
if (_prevNode == node) _prevIdx++;
else _prevIdx = 0;
List<BaseItem> list = node.UserData as List<BaseItem>;
item = list[_prevIdx % list.Count];
}
else _logView.Debug("GetItem reports invalid UserData");
_prevNode = node;
}
return item;
}
internal AffectedNode(GD.Color color, GD.Color fillColor, GD.Color fontColor)
{
Color = color;
FillColor = fillColor;
FontColor = fontColor;
}
internal AffectedEdge(GD.Color color)
{
Color = color;
}
