/***********************************************************************
	Listbox
***********************************************************************/
class Listbox : public Window
{
	unsigned long getItemCount() const;
	unsigned long getSelectedCount() const;
	ListboxItem* getFirstSelectedItem() const;
	ListboxItem* getNextSelected(const ListboxItem* start_item) const;
	ListboxItem* getListboxItemFromIndex(unsigned long index) const;
	unsigned long getItemIndex(const ListboxItem* item) const;
	ListboxItem* findItemWithText(string text, const ListboxItem* start_item);
	bool isSortEnabled() const;
	bool isMultiselectEnabled() const;
	bool isItemSelected(unsigned long index) const;
	bool isListboxItemInList(const ListboxItem* item) const;
	bool isVertScrollbarAlwaysShown() const;
	bool isHorzScrollbarAlwaysShown() const;

	void resetList(void);
	void addItem(ListboxItem* item);
	void insertItem(ListboxItem* item, const ListboxItem* position);
	void removeItem(const ListboxItem* item);
	void clearAllSelections(void);
	void setSortingEnabled(bool setting);
	void setMultiselectEnabled(bool setting);
	void setShowVertScrollbar(bool setting);
	void setShowHorzScrollbar(bool setting);
	void setItemSelectState(ListboxItem* item, bool state);
	void setItemSelectState(unsigned long item_index, bool state);
	void handleUpdatedItemData(void);
	void ensureItemIsVisible(unsigned long item_index);
	void ensureItemIsVisible(const ListboxItem* item);
	
	Rect getListRenderArea() const;
	Scrollbar* getVertScrollbar() const;
	Scrollbar* getHorzScrollbar() const;
	float getWidestItemWidth() const;
	float getTotalItemsHeight() const;
};