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GTreeView: Support multiple root-level items
Previously it was only possible to have a single root-level item in a GTreeView. This was an oversight and I didn't realize it because this code was only ever used in the FileManager, which has one root ("/"). Also factored out item toggling into a separate function, and increase the base indentation level so that root items can be toggled as well. Finally, let the user toggle the selected item with the spacebar. :^)
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2 changed files with 25 additions and 8 deletions
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@ -27,6 +27,7 @@ private:
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int toggle_size() const { return 9; }
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int text_padding() const { return 2; }
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void update_content_size();
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void toggle_index(const GModelIndex&);
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template<typename Callback>
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void traverse_in_paint_order(Callback) const;
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