core-extra/coretk/coretk/graph/edges.py

90 lines
3 KiB
Python

import tkinter as tk
from coretk.nodeutils import NodeUtils
class CanvasWirelessEdge:
def __init__(self, token, position, src, dst, canvas):
self.token = token
self.src = src
self.dst = dst
self.canvas = canvas
self.id = self.canvas.create_line(
*position, tags="wireless", width=1.5, fill="#009933"
)
def delete(self):
self.canvas.delete(self.id)
class CanvasEdge:
"""
Canvas edge class
"""
width = 1.4
def __init__(self, x1, y1, x2, y2, src, canvas):
"""
Create an instance of canvas edge object
:param int x1: source x-coord
:param int y1: source y-coord
:param int x2: destination x-coord
:param int y2: destination y-coord
:param int src: source id
:param coretk.graph.graph.GraphCanvas canvas: canvas object
"""
self.src = src
self.dst = None
self.src_interface = None
self.dst_interface = None
self.canvas = canvas
self.id = self.canvas.create_line(
x1, y1, x2, y2, tags="edge", width=self.width, fill="#ff0000"
)
self.token = None
self.link_info = None
self.throughput = None
def complete(self, dst):
self.dst = dst
self.token = tuple(sorted((self.src, self.dst)))
x, y = self.canvas.coords(self.dst)
x1, y1, _, _ = self.canvas.coords(self.id)
self.canvas.coords(self.id, x1, y1, x, y)
self.check_wireless()
self.canvas.tag_raise(self.src)
self.canvas.tag_raise(self.dst)
def check_wireless(self):
src_node = self.canvas.nodes[self.src]
dst_node = self.canvas.nodes[self.dst]
src_node_type = src_node.core_node.type
dst_node_type = dst_node.core_node.type
is_src_wireless = NodeUtils.is_wireless_node(src_node_type)
is_dst_wireless = NodeUtils.is_wireless_node(dst_node_type)
if is_src_wireless or is_dst_wireless:
self.canvas.itemconfig(self.id, state=tk.HIDDEN)
self._check_antenna()
def _check_antenna(self):
src_node = self.canvas.nodes[self.src]
dst_node = self.canvas.nodes[self.dst]
src_node_type = src_node.core_node.type
dst_node_type = dst_node.core_node.type
is_src_wireless = NodeUtils.is_wireless_node(src_node_type)
is_dst_wireless = NodeUtils.is_wireless_node(dst_node_type)
if is_src_wireless or is_dst_wireless:
if is_src_wireless and not is_dst_wireless:
dst_node.add_antenna()
elif not is_src_wireless and is_dst_wireless:
src_node.add_antenna()
# TODO: remove this? dont allow linking wireless nodes?
else:
src_node.add_antenna()
def delete(self):
self.canvas.delete(self.id)
if self.link_info:
self.canvas.delete(self.link_info.id1)
self.canvas.delete(self.link_info.id2)