msspec_python3/msspec/msspecgui/scenegraph2d/scenegraph/element/rectangle.py

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2019-11-14 15:16:51 +01:00
# -*- coding: utf-8 -*-
"""
scenegraph.element.rectangle
"""
# imports ####################################################################
from .path import Path
# rectangle ##################################################################
class Rectangle(Path):
tag = "rect"
width, height = 0, 0
rx, ry = None, None
@property
def d(self):
w, h = self.width, self.height
if w <= 0. or h <= 0.:
return []
rx, ry = self.rx, self.ry
if rx is None and ry is None:
return ['M', (0, 0), 'l', (0, h),
'l', (w, 0), 'l', (0, -h), 'z']
if rx is None:
rx = ry
if ry is None:
ry = rx
rx, ry = min(rx, w / 2.), min(ry, h / 2.)
return ['M', (0, ry),
'L', (0, h - ry), 'A', (rx, ry), 0, (0, 0), (rx, h),
'L', (w - rx, h), 'A', (rx, ry), 0, (0, 0), (w, h - ry),
'L', (w, ry), 'A', (rx, ry), 0, (0, 0), (w - rx, 0),
'L', (rx, 0), 'A', (rx, ry), 0, (0, 0), (0, ry),
'Z']