Source code for seamm.tk_split_node

# -*- coding: utf-8 -*-

"""A node to split the flow in a flowchart"""

import logging
import seamm

logger = logging.getLogger(__name__)




class TkSplit(seamm.TkNode):
    """The Tk-based graphical representation of a splitting node"""

    anchor_points = {
        "n": (0, 0),
        "s": (0, 1),
        "e": (0.5, 0.5),
        "w": (-0.5, 0.5),
    }

    def __init__(
        self, tk_flowchart=None, node=None, canvas=None, x=120, y=20, w=10, h=10
    ):
        """Initialize a node

        Keyword arguments:
        """
        logger.debug("Creating TkSplit, {} {} {} {} {}".format(node, x, y, w, h))
        super().__init__(
            tk_flowchart=tk_flowchart, node=node, canvas=canvas, x=x, y=y, w=w, h=h
        )



    def draw(self):
        """Draw the node on the given canvas, making it visible"""

        # the outline
        x0 = self.x - self.w / 2
        x1 = x0 + self.w
        y0 = self.y
        y1 = y0 + self.h
        self.border = self.canvas.create_oval(
            x0,
            y0,
            x1,
            y1,
            tags=[self.tag, "type=outline"],
            fill="black",
        )