#pragma once

#include "../item.qh"
CLASS(ListBox, MenuItem)
	METHOD(ListBox, resizeNotify, void(entity, vector, vector, vector, vector));
	METHOD(ListBox, configureListBox, void(entity, float, float));
	METHOD(ListBox, draw, void(entity));
	METHOD(ListBox, keyDown, float(entity, float, float, float));
	METHOD(ListBox, mouseMove, float(entity, vector));
	METHOD(ListBox, mousePress, bool(ListBox this, vector pos));
	METHOD(ListBox, mouseDrag, float(entity, vector));
	METHOD(ListBox, mouseRelease, float(entity, vector));
	METHOD(ListBox, focusLeave, void(entity));
	ATTRIB(ListBox, focusable, float, 1);
	ATTRIB(ListBox, focusedItem, int, -1);
	ATTRIB(ListBox, focusedItemAlpha, float, 0.3);
	METHOD(ListBox, setFocusedItem, void(entity, int));
	ATTRIB(ListBox, mouseMoveOffset, float, -1);  // let know where the cursor is when the list scrolls without moving the cursor
	ATTRIB(ListBox, allowFocusSound, float, 1);
	ATTRIB(ListBox, selectedItem, int, 0);
	ATTRIB(ListBox, size, vector, '0 0 0');
	ATTRIB(ListBox, origin, vector, '0 0 0');
	ATTRIB(ListBox, scrollPos, float, 0);  // measured in window heights, fixed when needed
	ATTRIB(ListBox, scrollPosTarget, float, 0);
	METHOD(ListBox, isScrolling, bool(entity));
	ATTRIB(ListBox, needScrollToItem, float, -1);
	METHOD(ListBox, scrollToItem, void(entity, int));
	ATTRIB(ListBox, previousValue, float, 0);
	ATTRIB(ListBox, pressed, float, 0);  // 0 = normal, 1 = scrollbar dragging, 2 = item dragging, 3 = released
	ATTRIB(ListBox, pressOffset, float, 0);

	METHOD(ListBox, updateControlTopBottom, void(entity));
	ATTRIB(ListBox, controlTop, float, 0);
	ATTRIB(ListBox, controlBottom, float, 0);
	ATTRIB(ListBox, controlWidth, float, 0);
	ATTRIB(ListBox, dragScrollPos, vector, '0 0 0');
	ATTRIB(ListBox, selectionDoesntMatter, bool, false); // improves scrolling by keys for lists that don't need to show an active selection

	ATTRIB(ListBox, src, string);           // scrollbar
	ATTRIB(ListBox, color, vector, '1 1 1');
	ATTRIB(ListBox, color2, vector, '1 1 1');
	ATTRIB(ListBox, colorC, vector, '1 1 1');
	ATTRIB(ListBox, colorF, vector, '1 1 1');
	ATTRIB(ListBox, tolerance, vector, '0 0 0'); // drag tolerance
	ATTRIB(ListBox, scrollbarWidth, float, 0);   // pixels
	ATTRIB(ListBox, nItems, float, 42);          // FIXME: why?!?
	ATTRIB(ListBox, itemHeight, float, 0);
    ATTRIB(ListBox, itemAbsSize, vector, '0 0 0');
	ATTRIB(ListBox, colorBG, vector, '0 0 0');
	ATTRIB(ListBox, alphaBG, float, 0);

	ATTRIB(ListBox, lastClickedItem, float, -1);
	ATTRIB(ListBox, lastClickedTime, float, 0);

	METHOD(ListBox, drawListBoxItem, void(entity, int, vector, bool, bool)); // item number, width/height, isSelected, isFocused
	METHOD(ListBox, clickListBoxItem, void(entity, float, vector));          // item number, relative clickpos
	METHOD(ListBox, doubleClickListBoxItem, void(entity, float, vector));    // item number, relative clickpos
	METHOD(ListBox, setSelected, void(entity, float));
	METHOD(ListBox, focusedItemChangeNotify, void(entity));

	METHOD(ListBox, getLastFullyVisibleItemAtScrollPos, float(entity, float));
	METHOD(ListBox, getFirstFullyVisibleItemAtScrollPos, float(entity, float));

	// NOTE: override these four methods if you want variable sized list items
	METHOD(ListBox, getTotalHeight, float(entity));
	METHOD(ListBox, getItemAtPos, float(entity, float));
	METHOD(ListBox, getItemStart, float(entity, float));
	METHOD(ListBox, getItemHeight, float(entity, float));
	// NOTE: if getItemAt* are overridden, it may make sense to cache the
	// start and height of the last item returned by getItemAtPos and fast
	// track returning their properties for getItemStart and getItemHeight.
	// The "hot" code path calls getItemAtPos first, then will query
	// getItemStart and getItemHeight on it soon.
	// When overriding, the following consistency rules must hold:
	// getTotalHeight() == SUM(getItemHeight(i), i, 0, me.nItems-1)
	// getItemStart(i+1) == getItemStart(i) + getItemHeight(i)
	//   for 0 <= i < me.nItems-1
	// getItemStart(0) == 0
	// getItemStart(getItemAtPos(p)) <= p
	//   if p >= 0
	// getItemAtPos(p) == 0
	//   if p < 0
	// getItemStart(getItemAtPos(p)) + getItemHeight(getItemAtPos(p)) > p
	//   if p < getTotalHeigt()
	// getItemAtPos(p) == me.nItems - 1
	//   if p >= getTotalHeight()
ENDCLASS(ListBox)