enum DIMENSION {
	width,
	height
}

function vectorBox(_size, _onModify, _unit = noone) : widget() constructor {
	size     = _size;
	onModify = _onModify;
	unit	 = _unit;
	
	linkable      = true;
	per_line      = false;
	current_value = [];
	linked        = false;
	side_button   = noone;
	
	link_inactive_color = noone;
	
	tooltip	= new tooltipSelector("Axis", [ __txt("Independent"), __txt("Linked") ]);
	
	onModifyIndex = function(val, index) { 
		var v = toNumber(val);
		
		if(linked) {
			var modi = false;
			for( var i = 0; i < size; i++ ) {
				tb[i]._input_text = v;
				
				if(is_callable(onModify))
					modi |= onModify(v, i); 
			}
			return modi;
		}
		
		if(is_callable(onModify))
			return onModify(v, index); 
		return noone;
	}
	
	axis = [ "x", "y", "z", "w" ];
	onModifySingle[0] = function(val) { return onModifyIndex(val, 0); }
	onModifySingle[1] = function(val) { return onModifyIndex(val, 1); }
	onModifySingle[2] = function(val) { return onModifyIndex(val, 2); }
	onModifySingle[3] = function(val) { return onModifyIndex(val, 3); }
	
	for(var i = 0; i < 4; i++) {
		tb[i] = new textBox(TEXTBOX_INPUT.number, onModifySingle[i]);
		tb[i].slidable = true;
	}
	
	static apply = function() {
		for( var i = 0; i < size; i++ ) {
			tb[i].apply();
			current_value[i] = toNumber(tb[i]._input_text);
		}
	}
	
	static setLinkInactiveColor = function(color) {
		link_inactive_color = color;
		return self;
	}
	
	static setInteract = function(interactable) {
		self.interactable = interactable;
		
		if(side_button) 
			side_button.interactable = interactable;
			
		for( var i = 0; i < size; i++ ) 
			tb[i].interactable = interactable;
	}
	
	static register = function(parent = noone) {
		for( var i = 0; i < size; i++ ) 
			tb[i].register(parent);
		
		if(side_button != noone) 
			side_button.register(parent);
		
		if(unit != noone && unit.reference != noone)
			unit.triggerButton.register(parent);
	}
	
	static isHovering = function() {
		for( var i = 0, n = array_length(tb); i < n; i++ ) if(tb[i].isHovering()) return true;
		return false;
	}
	
	static drawParam = function(params) {
		setParam(params);
		for(var i = 0; i < 4; i++) tb[i].setParam(params);
		
		return draw(params.x, params.y, params.w, params.h, params.data, params.display_data, params.m);
	}
	
	static draw = function(_x, _y, _w, _h, _data, _display_data, _m) {
		x = _x;
		y = _y;
		w = _w;
		h = per_line? (_h + ui(4)) * size - ui(4) : _h;
		
		if(struct_has(_display_data, "linked"))	     linked	     = _display_data.linked;
		if(struct_has(_display_data, "side_button")) side_button = _display_data.side_button;
		tooltip.index = linked;
		
		if(!is_array(_data))   return _h;
		if(array_empty(_data)) return _h;
		if(is_array(_data[0])) return _h;
		
		current_value = _data;
		
		var sz  = min(size, array_length(_data));
		var _bs = min(_h, ui(32));
		
		if((_w - _bs) / sz > ui(48)) {
			if(side_button) {
				if(is(side_button, buttonAnchor))
					side_button.index = round(array_safe_get(_data, 0) * 2 + array_safe_get(_data, 1) * 6);
				side_button.setFocusHover(active, hover);
				side_button.draw(_x + _w - _bs, _y + _h / 2 - _bs / 2, _bs, _bs, _m, THEME.button_hide);
				_w -= _bs + ui(4);
			}
			
			if(unit != noone && unit.reference != noone) {
				unit.triggerButton.setFocusHover(iactive, ihover);
				unit.draw(_x + _w - _bs, _y + _h / 2 - _bs / 2, _bs, _bs, _m);
				_w -= _bs + ui(4);
			}
			
			if(linkable) {
				var _icon_blend = linked? COLORS._main_accent : (link_inactive_color == noone? COLORS._main_icon : link_inactive_color);
				var bx = _x;
				var by = _y + _h / 2 - _bs / 2;
			
				if(buttonInstant(THEME.button_hide, bx, by, _bs, _bs, _m, active, hover, tooltip, THEME.value_link, linked, _icon_blend) == 2) {
					linked = !linked;
					_display_data.linked =  linked;
				
					if(linked) {
						onModify(_data[0], 0);
						onModify(_data[0], 1);
					}
				}
				
				_x += _bs + ui(4);
				_w -= _bs + ui(4);
			}
		}
		
		var ww = per_line? _w : _w / sz;
		
		if(!per_line) {
			draw_sprite_stretched_ext(THEME.textbox, 3, _x, _y, _w, _h, boxColor, 1);
			draw_sprite_stretched_ext(THEME.textbox, 0, _x, _y, _w, _h, boxColor, 0.5 + 0.5 * interactable);	
		}
			
		for(var i = 0; i < sz; i++) {
			
			var bx = per_line? _x : _x + ww * i;
			var by = per_line? _y + (_h + ui(4)) * i : _y;
			
			tb[i].setFocusHover(active, hover);
			tb[i].labelColor = sep_axis? COLORS.axis[i] : COLORS._main_text_sub;
			tb[i].hide       = !per_line;
			tb[i].label      = axis[i];
			
			tb[i].draw(bx, by, ww, _h, _data[i], _m);
		}
		
		resetFocus();
		
		return h;
	}
	
	static clone = function() {
		var cln = new vectorBox(size, onModify, unit);
		
		cln.linkable = linkable;
		cln.per_line = per_line;
		
		return cln;
	}

	static free = function() {
		for( var i = 0, n = array_length(tb); i < n; i++ ) tb[i].free();
	}
}