/usr/share/pyshared/seqdiag/builder.py is in python-seqdiag 0.9.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 | # -*- 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 seqdiag import parser
from seqdiag.elements import (Diagram, DiagramNode, NodeGroup,
DiagramEdge, EdgeSeparator, AltBlock)
from blockdiag.utils import unquote, XY
from blockdiag.utils.compat import u
class DiagramTreeBuilder(object):
def build(self, tree):
self.diagram = Diagram()
self.diagram = self.instantiate(self.diagram, None, tree)
self.update_node_order()
self.update_edge_order()
self.update_altblock_ylevel()
self.diagram.colwidth = len(self.diagram.nodes)
self.diagram.colheight = len(self.diagram.edges) + 1
for sep in self.diagram.separators:
self.diagram.edges.remove(sep)
if self.diagram.activation != 'none':
self.create_activities()
if self.diagram.autonumber:
self.update_label_numbered()
return self.diagram
def update_edge_order(self):
for i, edge in enumerate(self.diagram.edges):
edge.order = i
height = len(self.diagram.edges) + 1
for group in self.diagram.groups:
group.colheight = height
def update_altblock_ylevel(self):
altblocks = self.diagram.altblocks
for i in range(len(self.diagram.edges) + 1):
blocks = [b for b in altblocks if b.edges[0].order == i]
for j, altblock in enumerate(reversed(blocks)):
altblock.ylevel_top = j + 1
blocks = [b for b in altblocks if b.edges[-1].order == i]
for j, altblock in enumerate(reversed(blocks)):
altblock.ylevel_bottom = j + 1
def update_label_numbered(self):
for i, edge in enumerate(self.diagram.edges):
edge.label = u("%d. %s") % (i + 1, edge.label or "")
def create_activities(self):
if len(self.diagram.edges) == 0:
return
first_node = self.diagram.edges[0].node1
active_nodes = {first_node: 1}
for node in self.diagram.nodes:
if node.activated:
active_nodes[node] = 1
edge_count = len(self.diagram.edges) + len(self.diagram.separators)
for i in range(edge_count):
match = [e for e in self.diagram.edges if e.order == i]
if match:
edge = match[0]
if edge.node1 == edge.node2:
pass
elif edge.activate is False:
pass
elif edge.dir == 'forward':
if edge.node2 in active_nodes:
active_nodes[edge.node2] += 1
else:
active_nodes[edge.node2] = 1
elif edge.dir == 'back':
if edge.node2 in active_nodes:
active_nodes[edge.node2] -= 1
else:
active_nodes[edge.node2] = 0
for node in active_nodes:
if active_nodes[node] > 0:
for index in range(active_nodes[node]):
node.activate(i, index)
for node in self.diagram.nodes:
node.deactivate()
def update_node_order(self):
x = 0
uniq = []
for node in self.diagram.nodes:
if node not in uniq:
node.xy = XY(x, 0)
uniq.append(node)
x += 1
if node.group:
for subnode in node.group.nodes:
if subnode not in uniq:
subnode.xy = XY(x, 0)
uniq.append(subnode)
x += 1
for group in self.diagram.groups:
x = min(node.xy.x for node in group.nodes)
group.xy = XY(x, 0)
group.colwidth = len(group.nodes)
def append_node(self, node, group):
if node not in self.diagram.nodes:
self.diagram.nodes.append(node)
if isinstance(group, NodeGroup) and node not in group.nodes:
if node.group:
msg = "DiagramNode could not belong to two groups"
raise RuntimeError(msg)
group.nodes.append(node)
node.group = group
def instantiate(self, group, block, tree):
for stmt in tree.stmts:
if isinstance(stmt, parser.Node):
node = DiagramNode.get(stmt.id)
node.set_attributes(stmt.attrs)
self.append_node(node, group)
elif isinstance(stmt, parser.Edge):
self.instantiate_edge(group, block, stmt)
elif isinstance(stmt, parser.SubGraph):
node = NodeGroup.get(None)
self.instantiate(node, block, stmt)
self.diagram.groups.append(node)
elif isinstance(stmt, parser.DefAttrs):
if block:
block.set_attributes(stmt.attrs)
else:
group.set_attributes(stmt.attrs)
elif isinstance(stmt, parser.Separator):
sep = EdgeSeparator(stmt.type, unquote(stmt.value))
sep.group = group
self.diagram.separators.append(sep)
group.edges.append(sep)
elif isinstance(stmt, parser.AltBlock):
subblock = AltBlock(stmt.type, stmt.id)
if block:
subblock.xlevel = block.xlevel + 1
self.diagram.altblocks.append(subblock)
self.instantiate(group, subblock, stmt)
if block:
for edge in subblock.edges:
block.edges.append(edge)
elif isinstance(stmt, parser.AttrClass):
name = unquote(stmt.name)
Diagram.classes[name] = stmt
elif isinstance(stmt, parser.AttrPlugin):
self.diagram.set_plugin(stmt.name, stmt.attrs)
return group
def instantiate_edge(self, group, block, tree):
node_id = tree.nodes[0]
edge_from = DiagramNode.get(node_id)
self.append_node(edge_from, group)
edge_type, node_id = tree.nodes[1]
edge_to = DiagramNode.get(node_id)
self.append_node(edge_to, group)
edge = DiagramEdge(edge_from, edge_to)
if edge_type:
edge.set_attributes([parser.Attr('dir', edge_type)])
edge.set_attributes(tree.attrs)
if edge.dir in ('forward', 'both'):
forward = edge.duplicate()
forward.dir = 'forward'
group.edges.append(forward)
if block:
block.edges.append(forward)
if len(tree.nodes) > 2:
nodes = [edge_to.id] + tree.nodes[2:]
nested = parser.Edge(nodes, tree.attrs, tree.subedge)
self.instantiate_edge(group, block, nested)
elif tree.subedge:
self.instantiate(group, block, tree.subedge)
if edge.dir in ('back', 'both') and edge.node1 != edge.node2:
reverse = edge.duplicate()
reverse.dir = 'back'
if edge.dir == 'both':
reverse.style = 'dashed'
reverse.label = edge.return_label
reverse.leftnote = None
reverse.rightnote = None
group.edges.append(reverse)
if block:
block.edges.append(reverse)
class ScreenNodeBuilder(object):
@classmethod
def build(cls, tree):
DiagramNode.clear()
DiagramEdge.clear()
NodeGroup.clear()
return DiagramTreeBuilder().build(tree)
|