import verse as v
import vBitmap

# vManager members
_type = v.BITMAP     # this handler's node type
_node_list = {}      # list of bmpetry nodes: {node_id -> vBitmap}

# callbacks
def _cb_b_layer_create(node_id, layer_id, name, type):
	global _node_list

	if node_id in _node_list:
		bmp = _node_list[node_id]

		if type == v.B_LAYER_UINT8:
			if name == "col_r":
				bmp.layers["col_r"] = layer_id
			elif name == "col_g":
				bmp.layers["col_g"] = layer_id
			elif name == "col_b":
				bmp.layers["col_b"] = layer_id
			elif name == "alpha":
				bmp.layers["alpha"] = layer_id
			else:
				return

			if bmp.size_set:
				v.send_b_layer_subscribe(node_id, layer_id, 0)

def _cb_b_dimensions_set(node_id, x, y, z):
	global _node_list

	if node_id in _node_list:
		bmp = _node_list[node_id]
		bmp.setSize(x, y)
		if not bmp.size_set and x != 0 and y != 0:
			bmp.size_set = True

			for i in bmp.layers:
				if bmp.layers[i] != None:
					v.send_b_layer_subscribe(node_id, bmp.layers[i], 0)

def _cb_b_layer_destroy(node_id, layer_id, name, type):
	global _node_list

	if node_id in _node_list:
		bmp = _node_list[node_id]

		for i in bmp.layers:
			if bmp.layers[i] == layer_id:
				bmp.layers[i] = None

def _cb_b_tile_set(node_id, layer_id, tile_x, tile_y, z, type, pixels):
	global _node_list

	if type != v.B_LAYER_UINT8:
		return

	if node_id in _node_list:
		bmp = _node_list[node_id]

		for i in bmp.layers:
			if bmp.layers[i] == layer_id:
				if i == "col_r":
					bmp.setTile(tile_x, tile_y, pixels, 0)
				elif i == "col_g":
					bmp.setTile(tile_x, tile_y, pixels, 1)
				elif i == "col_b":
					bmp.setTile(tile_x, tile_y, pixels, 2)
				elif i == "alpha":
					bmp.setTile(tile_x, tile_y, pixels, 3)

#vManager functions
def _callbacks_set():
	v.callback_set(v.SEND_B_LAYER_CREATE, _cb_b_layer_create)
	v.callback_set(v.SEND_B_LAYER_DESTROY, _cb_b_layer_destroy)
	v.callback_set(v.SEND_B_TILE_SET, _cb_b_tile_set)
	v.callback_set(v.SEND_B_DIMENSIONS_SET, _cb_b_dimensions_set)

def _node_create(node_id, i_am_owner):
	global _node_list

	bmp = vBitmap.vBitmap()
	_node_list[node_id] = bmp
	bmp.layers = {}
	bmp.layers["col_r"] = None
	bmp.layers["col_g"] = None
	bmp.layers["col_b"] = None
	bmp.layers["alpha"] = None
	bmp.size_set = False

	v.send_node_subscribe(node_id)

def _node_destroy(node_id):
	global _node_list

	if node_id in _node_list:
		del _node_list[node_id]