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Canvas: change container-related methods in Item to be virtual

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This commit is contained in:
Paul Davis 2020-05-22 08:45:02 -06:00
parent b54c9b6a30
commit 01137cbbf3
1 changed files with 9 additions and 4 deletions
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13
libs/canvas/canvas/item.h
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@ -40,6 +40,7 @@ namespace ArdourCanvas
class Canvas;
class ScrollGroup;
class ConstrainedItem;
/** The parent class for anything that goes on the canvas.
*
@ -147,7 +148,8 @@ public:
/* item implementations can override this if they need to */
virtual Rect size_request() const { return bounding_box (true); }
void size_allocate (Rect const&);
virtual void size_allocate (Rect const&);
virtual void constrained (ConstrainedItem const &) {}
/** bounding box is the public API to get the size of the item.
* If @param for_own_purposes is false, then it will return the
@ -211,13 +213,16 @@ public:
void* get_data (std::string const &) const;
/* nested item ("grouping") API */
void add (Item *);
void add_front (Item *);
void remove (Item *);
virtual void add (Item *);
virtual void add_front (Item *);
virtual void remove (Item *);
/* XXX this should become virtual also */
void clear (bool with_delete = false);
std::list<Item*> const & items () const {
return _items;
}
void raise_child_to_top (Item *);
void raise_child (Item *, int);
void lower_child_to_bottom (Item *);