Hello,
I noticed that when using a GeListHead for storing custom BaseList2D items leads to a crash when TreeViewFunctions' SetName is called.
Is this a known bug/behavior?
If not, what did I do wrong? 
Here's a minimal example. Try to rename any ListItem with Double-Click -> Freeze.
On R21 I did some more debugging and it turned out that obj in SetName() is of type long.
import c4d
from c4d import gui
from c4d import plugins
PLUGIN_ID = 1000001 # Test plugin id
PLUGIN_ID_ND = 1000002 # Test plugin id
class ListItem(plugins.NodeData):
def Init(self, node):
# do stuff here
return True
class Tvf(gui.TreeViewFunctions):
def GetFirst(self, root, userdata):
if not root:
return None
return root.GetFirst()
def GetNext(self, root, userdata, obj):
return obj.GetNext()
def GetName(self, root, userdata, obj):
return obj.GetName()
def SetName(self, root, userdata, obj, str):
obj.SetName(str)
class TestDialog(gui.GeDialog):
def __init__(self):
self.items = c4d.GeListHead()
self.treegui = None
self.tvf = Tvf()
def add_item(self):
item = c4d.BaseList2D(PLUGIN_ID_ND)
item.SetName("ListItem")
item.InsertUnder(self.items)
def CreateLayout(self):
settings = c4d.BaseContainer()
settings.SetBool(c4d.TREEVIEW_HAS_HEADER, True)
self.treegui = self.AddCustomGui(0, c4d.CUSTOMGUI_TREEVIEW, "",
c4d.BFH_SCALEFIT | c4d.BFV_SCALEFIT,
300,
300,
settings)
return True
def InitValues(self):
for x in range(5):
self.add_item()
layout_bc = c4d.BaseContainer()
layout_bc.SetInt32(0, c4d.LV_TREE)
self.treegui.SetLayout(1, layout_bc)
self.treegui.SetHeaderText(0, "Name")
self.treegui.Refresh()
self.treegui.SetRoot(self.items, self.tvf, None)
return True
class TestCommand(plugins.CommandData):
def __init__(self):
self.dlg = None
def Register(self):
return plugins.RegisterCommandPlugin(PLUGIN_ID, "Test-Plugin", 0, None, None, self)
def Execute(self, doc):
if self.dlg is None:
self.dlg = TestDialog()
return self.dlg.Open(dlgtype=c4d.DLG_TYPE_ASYNC, pluginid=PLUGIN_ID, defaulth=400, defaultw=400)
def RestoreLayout(self, sec_ref):
if self.dlg is None:
self.dlg = TestDialog()
return self.dlg.Restore(pluginid=PLUGIN_ID, secret=sec_ref)
if __name__ == '__main__':
TestCommand().Register()
plugins.RegisterNodePlugin(PLUGIN_ID_ND, "ListItem", c4d.PLUGINFLAG_HIDE, ListItem, None)
