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LibGUI: Add is_toggled getter for TreeView

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This has safer fallbacks than toggle_index, because we want to be able
to call it on indices that don't have children.
This commit is contained in:
kleines Filmröllchen 2022-04-05 00:19:52 +02:00 • committed by Andreas Kling
parent d813bf77ee
commit 4e8cb0508f
2 changed files with 13 additions and 0 deletions
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Userland/Libraries/LibGUI/TreeView.h
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@ -21,6 +21,7 @@ public:
virtual int item_count() const override;
virtual void toggle_index(ModelIndex const&) override;
bool is_toggled(ModelIndex const& index);
void expand_tree(ModelIndex const& root = {});
void collapse_tree(ModelIndex const& root = {});