Message
Hi,
I'm trying to start
off with a single root node centred in the panel.
I've figured out I
can control the x position with setSideMargin: (see below), but I can't figure
out how to get it nicely centred.
I've tried the code
below to get to the ScrollWrapper, but it is still off
centre.
Any suggestions
appreciated.
Thanks,
Stewart
displayRoots:
rootNodes
| layout
extent |
layout :=
GFTreeLayout forGraph:
(FwRootedGraph
ordered
roots: rootNodes
children: [:
node | node children]).
layout perform: self
orientation.
layout
setCreateNodeGOAction: [: nodeGO |
self createNodeGO: nodeGO];
setCreateLineGOAction: (layout
perform: self lineGOAction);
setCreateLabelGOAction: [:
nodeAndLineAssoc : label | ];
setMinParentChildSpace: 30
;
setMinSiblingSpace: 10 ;
setMargins:
0;
layout.
layout
setSideMargin:
interface drawing container display displayPane container visibleExtent x /
2;
setLeafMargin: 0;
setRootMargin:
20;
layout.
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