/usr/lib/python3/dist-packages/nwdiag/drawer.py is in python3-nwdiag 1.0.3-3.
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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 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 | # -*- 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
import blockdiag.drawer
from nwdiag.metrics import DiagramMetrics
from blockdiag.utils import Box, XY
class DiagramDraw(blockdiag.drawer.DiagramDraw):
def create_metrics(self, *args, **kwargs):
return DiagramMetrics(*args, **kwargs)
def __init__(self, _format, diagram, filename=None, **kwargs):
super(DiagramDraw, self).__init__(_format, diagram, filename, **kwargs)
self.drawer.set_options(jump_forward='vertical',
jump_radius=self.metrics.jump_radius,
jump_shift=self.metrics.jump_shift)
@property
def groups(self):
return self.diagram.groups
def pagesize(self, scaled=False):
return super(DiagramDraw, self).pagesize(scaled).to_integer_point()
def _draw_background(self):
super(DiagramDraw, self)._draw_background()
self.trunklines_shadow()
def trunklines_shadow(self):
for network in self.diagram.networks:
if network.hidden is False and network.color != 'none':
self.trunkline(network, shadow=True)
def trunklines(self):
metrics = self.metrics
for network in self.diagram.networks:
if network.hidden is False:
self.trunkline(network)
if (self.diagram.external_connector and
(network == self.diagram.networks[0])):
r = metrics.trunk_diameter // 2
pt = metrics.network(network).top
pt0 = XY(pt.x, pt.y - metrics.span_height * 2 // 3)
pt1 = XY(pt.x, pt.y - r)
self.drawer.line([pt0, pt1], fill=network.linecolor)
def trunkline(self, network, shadow=False):
metrics = self.metrics
m = metrics.network(network)
r = metrics.trunk_diameter // 2
pt1, pt2 = m.trunkline
box = Box(pt1.x, pt1.y - r, pt2.x, pt2.y + r)
if shadow:
xdiff = self.metrics.shadow_offset.x
ydiff = self.metrics.shadow_offset.y // 2
box = Box(pt1.x + xdiff, pt1.y - r + ydiff,
pt2.x + xdiff, pt2.y + r + ydiff)
if self.format == 'SVG':
from blockdiag.imagedraw.simplesvg import pathdata
path = pathdata(box[0], box[1])
path.line(box[2], box[1])
path.ellarc(r // 2, r, 0, 0, 1, box[2], box[3])
path.line(box[0], box[3])
path.ellarc(r // 2, r, 0, 0, 1, box[0], box[1])
if shadow:
self.drawer.path(path, fill=self.shadow, filter='blur')
else:
self.drawer.path(path, fill=network.color,
outline=network.linecolor)
path = pathdata(box[2], box[3])
path.ellarc(r // 2, r, 0, 0, 1, box[2], box[1])
self.drawer.path(path, fill='none', outline=network.linecolor)
# for edge jumping
line = (XY(box[0], box[1]), XY(box[2], box[1]))
self.drawer.line(line, fill='none', jump=True)
else:
lsection = Box(box[0] - r // 2, box[1], box[0] + r // 2, box[3])
rsection = Box(box[2] - r // 2, box[1], box[2] + r // 2, box[3])
if shadow:
color = self.shadow
_filter = 'blur'
else:
color = network.color
_filter = None
# fill background
self.drawer.rectangle(box, outline=color,
fill=color, filter=_filter)
self.drawer.ellipse(lsection, outline=color,
fill=color, filter=_filter)
self.drawer.ellipse(rsection, outline=color,
fill=color, filter=_filter)
if not shadow:
upper = (XY(box[0], box[1]), XY(box[2], box[1]))
self.drawer.line(upper, fill=network.linecolor, jump=True)
bottom = (XY(box[0], box[3]), XY(box[2], box[3]))
self.drawer.line(bottom, fill=network.linecolor, jump=True)
self.drawer.arc(lsection, 90, 270, fill=network.linecolor)
self.drawer.ellipse(rsection, outline=network.linecolor,
fill=network.color)
def _draw_elements(self):
self.trunklines()
for network in self.diagram.networks:
self.trunkline_label(network)
super(DiagramDraw, self)._draw_elements()
def trunkline_label(self, network):
if network.display_label:
m = self.metrics.network(network)
self.drawer.textarea(m.textbox, network.display_label,
self.metrics.font_for(network),
fill=network.textcolor, halign="right")
def node(self, node, **kwargs):
m = self.metrics
for connector in m.node(node).connectors:
self.draw_connector(connector)
if hasattr(connector, 'subject'):
network = connector.subject.network
else:
network = connector.network
if network in node.address:
label = node.address[network]
self.drawer.textarea(connector.textbox, label,
self.metrics.font_for(node),
fill=node.textcolor, halign="left")
super(DiagramDraw, self).node(node, **kwargs)
def draw_connector(self, connector):
self.drawer.line(connector.line,
fill=connector.network.linecolor, jump=True)
def group_label(self, group):
if group.label:
m = self.metrics.cell(group)
self.drawer.textarea(m.grouplabelbox, group.label,
self.metrics.font_for(group),
valign='top', fill=group.textcolor)
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