public static bool DeleteSelected(IDirectedGraphObjectConfig graphObject, int index, bool isNode)
{
if (index < 0 || graphObject == null || graphObject.GraphProperty == null)
{
return(false);
}
SerializedProperty links = graphObject.GraphProperty.FindPropertyRelative("Links");
SerializedProperty graphProperty = graphObject.GraphProperty;
if (isNode)
{
SerializedProperty nodes = graphProperty.FindPropertyRelative("Nodes");
if (nodes == null || nodes.arraySize <= 1)
{
return(false);
}
DeleteIndex(graphProperty, "Positions", index);
if (!DeleteIndex(graphProperty, "Nodes", index))
{
return(false);
}
Vector2Int ln;
for (int i = links.arraySize - 1; i >= 0; i--)
{
ln = links.GetArrayElementAtIndex(i).vector2IntValue;
if (ln.x == index || ln.y == index)
{
DeleteIndex(graphProperty, "Links", i);
DeleteIndex(graphProperty, "LinkData", i);
}
else
{
if (ln.x > index)
{
ln.x--;
}
if (ln.y > index)
{
ln.y--;
}
links.GetArrayElementAtIndex(i).vector2IntValue = ln;
}
}
}
else
{
DeleteIndex(graphProperty, "LinkData", index);
if (!DeleteIndex(graphProperty, "Links", index))
{
return(false);
}
}
graphObject.Select(-1, false);
GraphEditorWindow window = GetWindow <GraphEditorWindow>(((ScriptableObject)graphObject).name + " | Graph Editor", false);
window._isNode = false;
window._selection = -1;
graphObject.GraphObject.ApplyModifiedProperties();
return(true);
}
public void OnGUI()
{
if (_graphObject != null)
{
int index;
_graphObject.GraphObject.Update();
_scroll = GUI.BeginScrollView(new Rect(0, 0, position.width, position.height), _scroll, _scrollRect);
switch (Event.current.type)
{
case EventType.KeyDown:
if ((Event.current.modifiers & (EventModifiers.Command | EventModifiers.Control)) > 0 &&
(Event.current.keyCode == KeyCode.Backspace || Event.current.keyCode == KeyCode.Delete))
{
DeleteSelected();
}
else if (Event.current.modifiers == EventModifiers.None && _selection >= 0)
{
EditorWindow win = Array.Find(Resources.FindObjectsOfTypeAll <EditorWindow>(), w => w.titleContent.text == "Inspector");
if (win != null)
{
win.Focus();
}
}
break;
case EventType.MouseDown:
_mousePos = Event.current.mousePosition;
_selection = IntersectNode(_mousePos);
_isNode = _selection >= 0;
if (!_isNode)
{
_selection = IntersectLink(_mousePos);
}
break;
case EventType.MouseDrag:
if (_selection >= 0)
{
switch (Event.current.button)
{
// Drag nodes with lmb
case 0:
if (_isNode)
{
_tempPos = _positions.GetArrayElementAtIndex(_selection).vector2Value;
_tempPos += Event.current.mousePosition - _mousePos;
_positions.GetArrayElementAtIndex(_selection).vector2Value = _tempPos;
}
else if (!_relinking)
{
_relinking = true;
_tempPos = GetLinkEnds(_selection)[0];
}
break;
// Reposition links/Create nodes with rmb
case 1:
if (!_relinking)
{
_relinking = true;
_tempPos = _isNode
? _positions.GetArrayElementAtIndex(_selection).vector2Value
: GetLinkEnds(_selection)[0];
}
break;
}
} // else -- TODO: Marquis select multiple objects. Also support multiple selections.
_mousePos = Event.current.mousePosition;
break;
case EventType.MouseUp:
_mousePos = Event.current.mousePosition;
if (_relinking)
{
index = IntersectNode(_mousePos);
// Create a new node if right-dragging
if (index < 0 && Event.current.button == 1)
{
index = CreateNewNode(_mousePos);
}
if (_isNode) // Linking to a new node
{
Link(_selection, index);
if (index >= 0)
{
_selection = index;
}
}
else // Redirecting an existing link
{
// Redirecting a link to its own source deletes the link
if (GetLink(_selection).x == index)
{
DeleteSelected();
}
// Redirect the Link
else
{
RedirectLink(_selection, index);
}
}
_relinking = false;
}
break;
}
if (_graphObject != null)
{
_graphObject.Select(_selection, _isNode);
}
_graphObject.GraphObject.ApplyModifiedProperties();
DrawLinks();
if (_relinking)
{
DrawLink(_tempPos, _mousePos, !_isNode);
}
DrawNodes();
GUI.EndScrollView();
Repaint();
}
}