diff options
Diffstat (limited to 'source/blender/editors/include/UI_tree_view.hh')
-rw-r--r-- | source/blender/editors/include/UI_tree_view.hh | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/source/blender/editors/include/UI_tree_view.hh b/source/blender/editors/include/UI_tree_view.hh index 70d0f3b21b2..0a054101e81 100644 --- a/source/blender/editors/include/UI_tree_view.hh +++ b/source/blender/editors/include/UI_tree_view.hh @@ -217,15 +217,11 @@ class AbstractTreeViewItem : public TreeViewItemContainer { friend class TreeViewLayoutBuilder; public: - using IsActiveFn = std::function<bool()>; - private: bool is_open_ = false; bool is_active_ = false; bool is_renaming_ = false; - IsActiveFn is_active_fn_; - protected: /** This label is used for identifying an item (together with its parent's labels). */ std::string label_{}; @@ -239,11 +235,6 @@ class AbstractTreeViewItem : public TreeViewItemContainer { virtual void build_context_menu(bContext &C, uiLayout &column) const; virtual void on_activate(); - /** - * Set a custom callback to check if this item should be active. There's a version without - * arguments for checking if the item is currently in an active state. - */ - virtual void is_active(IsActiveFn is_active_fn); /** * Queries if the tree-view item supports renaming in principle. Renaming may still fail, e.g. if @@ -329,6 +320,17 @@ class AbstractTreeViewItem : public TreeViewItemContainer { */ void activate(); + /** + * If the result is not empty, it controls whether the item should be active or not, + * usually depending on the data that the view represents. + */ + virtual std::optional<bool> should_be_active() const; + + /** + * Return whether the item can be collapsed. Used to disable collapsing for items with children. + */ + virtual bool supports_collapsing() const; + private: static void rename_button_fn(bContext *, void *, char *); static AbstractTreeViewItem *find_tree_item_from_rename_button(const uiBut &but); @@ -423,6 +425,7 @@ class AbstractTreeViewItemDropController { */ class BasicTreeViewItem : public AbstractTreeViewItem { public: + using IsActiveFn = std::function<bool()>; using ActivateFn = std::function<void(BasicTreeViewItem &new_active)>; BIFIconID icon; @@ -430,7 +433,11 @@ class BasicTreeViewItem : public AbstractTreeViewItem { void build_row(uiLayout &row) override; void add_label(uiLayout &layout, StringRefNull label_override = ""); - void on_activate(ActivateFn fn); + void set_on_activate_fn(ActivateFn fn); + /** + * Set a custom callback to check if this item should be active. + */ + void set_is_active_fn(IsActiveFn fn); protected: /** @@ -440,9 +447,12 @@ class BasicTreeViewItem : public AbstractTreeViewItem { */ ActivateFn activate_fn_; + IsActiveFn is_active_fn_; + private: static void tree_row_click_fn(struct bContext *C, void *arg1, void *arg2); + std::optional<bool> should_be_active() const override; void on_activate() override; }; |