private void ConstructGraphView()
{
Instance = this;
GraphView = new CodeGraphView(this)
{
name = "Code Graph"
};
GraphView.StretchToParentSize();
rootVisualElement.Add(GraphView);
if (GraphObject != null)
{
SaveUtility.GetInstance(GraphView).LoadGraph(GraphObject);
}
GraphView.RegisterCallback <KeyDownEvent>(evt => {
if (evt.keyCode == KeyCode.S && evt.ctrlKey)
{
SaveGraph();
evt.StopPropagation();
}
if (evt.keyCode == KeyCode.G && evt.ctrlKey && !evt.shiftKey && GraphView.selection.Count > 0)
{
GraphView.GroupSelection();
evt.StopPropagation();
}
if (evt.keyCode == KeyCode.G && evt.ctrlKey && evt.shiftKey && GraphView.selection.Count > 0)
{
GraphView.UngroupSelection();
evt.StopPropagation();
}
}, TrickleDown.TrickleDown);
}
public void Initialize(CodeGraph editorWindow, CodeGraphView graphView)
{
this.editorWindow = editorWindow;
this.graphView = graphView;
// Transparent icon to trick search window into indenting items
icon = new Texture2D(1, 1);
icon.SetPixel(0, 0, new Color(0, 0, 0, 0));
icon.Apply();
}
public static void InsertCopyPasteGraph(this CodeGraphView graphView, CopyPasteGraphData copyGraph)
{
if (copyGraph == null)
{
return;
}
var nodeGuidMap = new Dictionary <string, string>();
var nodeGuidMapReverse = new Dictionary <string, string>();
var remappedNodes = new List <AbstractNode>();
foreach (var node in copyGraph.Nodes)
{
var oldGuid = node.GUID;
var newGuid = Guid.NewGuid().ToString();
nodeGuidMap[newGuid] = oldGuid;
nodeGuidMapReverse[oldGuid] = newGuid;
node.GUID = newGuid;
remappedNodes.Add(node);
}
// Compute the mean of the copied nodes.
var centroid = Vector2.zero;
var count = 1;
foreach (var node in remappedNodes)
{
var position = copyGraph.NodePositions[nodeGuidMap[node.GUID]].position;
centroid += (position - centroid) / count;
++count;
}
// Get the center of the current view
var viewCenter = graphView.contentViewContainer.WorldToLocal(graphView.layout.center);
foreach (var node in remappedNodes)
{
var positionRect = copyGraph.NodePositions[nodeGuidMap[node.GUID]];
var position = positionRect.position;
position += viewCenter - centroid;
positionRect.position = position;
node.SetPosition(positionRect);
}
remappedNodes.ForEach(graphView.AddElement);
copyGraph.Edges.ToList().ForEach(graphView.Add);
// Add new elements to selection
graphView.ClearSelection();
copyGraph.Edges.ToList().ForEach(graphView.AddToSelection);
remappedNodes.ForEach(graphView.AddToSelection);
}
public static SaveUtility GetInstance(CodeGraphView graphView) => new SaveUtility
{
graphView = graphView
};