How do you update ValueTree parent node properties from children?

[matkatmusic]

hey @dave96 the HiddenRoot is the hidden root on my TreeView. you know that setting, “TreeView::hideTreeRoot(true)” or whatever it is? that’s all it is. it’s the root node of my ValueTree and TreeViewItem.

@jules the issue I kept running into was handling what to do when a node changes from being a leaf, to having children.

Once I figured out that tickboxes on nodes with children should not referTo the completed property on their respective ValueTree but instead compute how many of their children are completed out of all of their children to set the toggle state, things thinned out a bit.

I ended up ditching the whole system, as per this thread:

Replacing child nodes in ValueTrees

I ended up doing a crazy solution of cloning the tree I need to swap children on, doing the child node swap, and then replacing the tree with the cloned tree. The reason was because ValueTree::copyPropertiesAndChildrenFrom() would have fired a listener callback for every thing, and doing the tree clone/swap/replace ended up just calling valueTreeRedirected for the tree root. Since these valueTrees are being used in a TreeView anonymously, there is no means of removing listeners on specific nod…