[Lazarus] Treeview Question
zeljko at holobit.net
Tue Jun 30 09:09:36 CEST 2020
On 6/30/20 1:10 AM, Martin via lazarus wrote:
> I'm porting an application I started (but never finished) in Pyside to
> Lazarus. This question is only about cosmetics as Treeview works as I
> want it to.
> In Pyside I could set a space between nodes by setting the node text as
> "" and disabling that node so it never gets selection, e.g.
> self.tvSpace001 = QTreeWidgetItem(self.leftTreeWidget)
> self.tvSpace001.setText(0, "")
> In Lazarus there seems to be no disabled property for nodes, so when
> transversing a node with text "" with the keyboard, it will move onto
> that empty node but not highlight it, when I would prefer it instead
> moved onto the next or previous node and highlight it.
> I could write a workaround, storing the last node index, working out if
> the user has moved up or down, checking if the text is "" and
> highlighting the previous or next node as required, BUT I just wondered
> if anyone has a more simple, more elegant solution please?
> It's only to show visual definition between groups of parents and childs
> and doesn't actually affect how the application works.
Lazarus uses it's own implementation of TTreeView, so you have to create
your own LCL wrapper for QTreeWidget.
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