/usr/share/pyshared/nwdiag/metrics.py is in python-nwdiag 1.0.0-1.
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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 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | # -*- 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 math
from collections import namedtuple
import blockdiag.metrics
from nwdiag import elements
from blockdiag.utils import Box, XY
cellsize = blockdiag.metrics.DiagramMetrics.cellsize
class DiagramMetrics(blockdiag.metrics.DiagramMetrics):
node_width = cellsize * 13
span_width = cellsize * 6
span_height = cellsize * 13
def __init__(self, diagram, **kwargs):
super(DiagramMetrics, self).__init__(diagram, **kwargs)
self.networks = diagram.networks
self.trunk_diameter = self.cellsize
self.jump_shift = self.trunk_diameter // 2
self.jump_radius = self.trunk_diameter
self.page_padding = [self.span_height // 2, 0, 0, self.node_width]
for node in diagram.nodes:
bottom = [n for n in node.networks if n.xy.y > node.xy.y]
cnwidth = (len(bottom) + 1) * self.cellsize * 2
if self.cell(node).width < cnwidth:
node.width = cnwidth
self.spreadsheet.set_node_width(node.xy.x, cnwidth)
def node(self, node):
n = super(DiagramMetrics, self).cell(node)
return NodeMetrics(node, self, n.x1, n.y1, n.x2, n.y2)
def cell(self, node):
if isinstance(node, elements.Network):
metrics = super(DiagramMetrics, self).cell(node, use_padding=False)
elif isinstance(node, elements.NodeGroup):
n = super(DiagramMetrics, self).cell(node)
metrics = GroupMetrics(node, self, n.x1, n.y1, n.x2, n.y2)
else:
metrics = super(DiagramMetrics, self).cell(node)
return metrics
def network(self, network):
n = self.cell(network)
return NetworkMetrics(self, n.x1, n.y1, n.x2, n.y2)
class NetworkMetrics(blockdiag.metrics.NodeMetrics):
@property
def trunkline(self):
x0 = self.left.x
x1 = self.right.x
y = self.top.y
return [XY(x0, y), XY(x1, y)]
@property
def top(self):
pt = self.box.top
return XY(pt.x, pt.y - self.span_height // 2)
@property
def left(self):
pt = self.box.left
return XY(pt.x - self.span_width // 2, pt.y)
@property
def right(self):
pt = self.box.right
return XY(pt.x + self.span_width // 2, pt.y)
@property
def textbox(self):
x = self.left.x
y = self.top.y
width = self.node_width * 3 // 2
height = self.node_height
return Box(x - width, y - height // 2, x, y + height // 2)
class NodeMetrics(blockdiag.metrics.NodeMetrics):
def __init__(self, node, metrics, x1, y1, x2, y2):
super(NodeMetrics, self).__init__(metrics, x1, y1, x2, y2)
self.node = node
@property
def connectors(self):
above = [n for n in self.node.networks if n.xy.y <= self.node.xy.y]
above.sort(key=lambda a: a.xy.y, reverse=True)
bottom = [n for n in self.node.networks if n.xy.y > self.node.xy.y]
bottom.sort(key=lambda a: a.xy.y)
Connector = namedtuple('Connector', 'network line textbox')
connectors = []
for networks in [above, bottom]:
for network in networks:
if network.hidden:
span = 0
else:
span = self.trunk_diameter // 2
if network.xy.y <= self.node.xy.y:
x, y2 = self.top
y1 = self.network(network).top.y + span
else:
x, y1 = self.bottom
y2 = self.network(network).top.y - span
if len(networks) == 1:
dx = 0
else:
pos = networks.index(network)
base_x = (len(networks) - 1) / 2.0 - pos
dx = int(math.floor(base_x * self.cellsize * 2))
width = self.node_width + self.span_width
textbox = Box(x + dx + self.cellsize // 2,
y2 - self.span_height // 2,
x + width - self.cellsize // 2,
y2)
line = [XY(x + dx, y1), XY(x + dx, y2)]
cn = Connector(network, line, textbox)
connectors.append(cn)
return connectors
class GroupMetrics(blockdiag.metrics.NodeMetrics):
def __init__(self, group, metrics, x1, y1, x2, y2):
super(GroupMetrics, self).__init__(metrics, x1, y1, x2, y2)
self.is_root_group = False
if group.nodes:
networks = group.nodes[0].networks[:]
networks.sort(key=lambda a: a.xy.y)
network = min(networks)
if self.top.x == metrics.network(network).top.x:
self.is_root_group = True
@property
def grouplabelbox(self):
box = super(GroupMetrics, self).grouplabelbox
span = self.cellsize
box = Box(box[0], box[1] + span, box[2], box[3] + span)
if self.is_root_group:
width = (self.node_width + self.span_width) // 2
box = Box(box[0] + width, box[1], box[2] + width, box[3])
return box
@property
def marginbox(self):
box = super(GroupMetrics, self).box
margin_x = self.span_height // 2 - self.cellsize
margin_y = self.cellsize
return Box(box[0] - margin_y, box[1] - margin_x,
box[2] + margin_y, box[3] + margin_x)
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