Hi everyone,
I am having some trouble with the TreeView in gtk2hs.
(I am using gtk2hs 0.12.3 with ghc 7.4.2 on windows 7 x64.)
I would like to achieve the following: in 1 set up the TreeView and its
columns and
renderers, and in a different function set the model for the TreeView control so
the data can be displayed. I have the following code:
populateTreeView :: TreeView -> IO ()
populateTreeView tv = do
list <- listStoreNew [["Vince", "1"], ["Jhen", "2"], ["Chris", "3"],
["Sharon", "4"]]
treeViewSetModel tv list -- this call throws warnings saying that the
model is different from the
-- one that was used in the function below.
setupTreeView :: TreeView -> IO ()
setupTreeView treeview = do
model <- treeStoreNew ([] :: [Tree String])
widgetSetSizeRequest treeview 300 (-1)
renderer <- Model.cellRendererTextNew
col <- Model.treeViewColumnNew
Model.treeViewColumnSetTitle col "Upcoming Birtdays"
Model.cellLayoutPackStart col renderer False
Model.cellLayoutSetAttributes col renderer model -- My problem is here I
need to supply a model.
$ \l -> [Model.cellText := l] -- Is there a function
I can use to define how
-- a cell is rendered
without supplying the model?
Model.treeViewAppendColumn treeview col
After looking at the source code, it seems that the
'gtk_tree_view_column_set_attributes'
function is not exposed in gtk2hs because of variable argument list FFI
restriction.
Is there a way to work around this problem?
Regards
Rouan.
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