/usr/share/pyshared/blockdiag/noderenderer/diamond.py is in python-blockdiag 1.3.2-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | # -*- coding: utf-8 -*-
# Copyright 2011 Takeshi KOMIYA
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import division
from blockdiag.noderenderer import NodeShape
from blockdiag.noderenderer import install_renderer
from blockdiag.utils import Box, XY
class Diamond(NodeShape):
def __init__(self, node, metrics=None):
super(Diamond, self).__init__(node, metrics)
r = metrics.cellsize
m = metrics.cell(node)
self.connectors = [XY(m.top.x, m.top.y - r),
XY(m.right.x + r, m.right.y),
XY(m.bottom.x, m.bottom.y + r),
XY(m.left.x - r, m.left.y),
XY(m.top.x, m.top.y - r)]
self.textbox = Box((self.connectors[0].x + self.connectors[3].x) // 2,
(self.connectors[0].y + self.connectors[3].y) // 2,
(self.connectors[1].x + self.connectors[2].x) // 2,
(self.connectors[1].y + self.connectors[2].y) // 2)
def render_shape(self, drawer, _, **kwargs):
fill = kwargs.get('fill')
# draw outline
if kwargs.get('shadow'):
diamond = self.shift_shadow(self.connectors)
if kwargs.get('style') == 'blur':
drawer.polygon(diamond, fill=fill, outline=fill,
filter='transp-blur')
else:
drawer.polygon(diamond, fill=fill, outline=fill)
elif self.node.background:
drawer.polygon(self.connectors, fill=self.node.color,
outline=self.node.color)
drawer.image(self.textbox, self.node.background)
drawer.polygon(self.connectors, fill="none",
outline=self.node.linecolor, style=self.node.style)
else:
drawer.polygon(self.connectors, fill=self.node.color,
outline=self.node.linecolor, style=self.node.style)
def setup(self):
install_renderer('diamond', Diamond)
install_renderer('flowchart.condition', Diamond)
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