[Digikam-devel] [digikam] [Bug 196927] No easy way to expand or collapse deep tag hierarchies [patch]

[Otto Hirr]

https://bugs.kde.org/show_bug.cgi?id=196927

--- Comment #15 from Otto Hirr <ottohirr at gmail.com> ---
In further refinement...

if the state of display of children is with the node, then
1) touches EACH node of ENTIRE tree, saying to E|C children
2) touches the "current cursor" node and all nodes beneath, saying to E|C the
node's children
3) touches the "current cursor" node ONLY, saying to E|C the node's children

The implications are that applying (3-C) to a top level node, collapses
everything under that node - the collapse is for that node only and because it
is collapsed, any children, regardless of how deeply expanded or not, are not
affected. However, applying (3-E) again to that top level node, expands just
that top level node AND however the nodes under that top level node, whether
expanded or collapsed, will remain expanded or collapsed.

The implications of applying (1-C) to any node, collapses the entire tree. Then
applying (3-E) will only open just the one node, all children below it have
been collapsed due to the full coverage of (1-C) telling each node to not
display children.

Hopefully that makes a useful feature more understandable.

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