| # -*- coding: utf-8 -*- |
| # Copyright (c) 2008-2010 LOGILAB S.A. (Paris, FRANCE). |
| # http://www.logilab.fr/ -- mailto:contact@logilab.fr |
| # |
| # This program is free software; you can redistribute it and/or modify it under |
| # the terms of the GNU General Public License as published by the Free Software |
| # Foundation; either version 2 of the License, or (at your option) any later |
| # version. |
| # |
| # This program is distributed in the hope that it will be useful, but WITHOUT |
| # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along with |
| # this program; if not, write to the Free Software Foundation, Inc., |
| # 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| """ |
| Utilities for creating VCG and Dot diagrams. |
| """ |
| |
| from logilab.common.vcgutils import VCGPrinter |
| from logilab.common.graph import DotBackend |
| |
| from pylint.pyreverse.utils import is_exception |
| |
| class DiagramWriter: |
| """base class for writing project diagrams |
| """ |
| def __init__(self, config, styles): |
| self.config = config |
| self.pkg_edges, self.inh_edges, self.imp_edges, self.ass_edges = styles |
| self.printer = None # defined in set_printer |
| |
| def write(self, diadefs): |
| """write files for <project> according to <diadefs> |
| """ |
| for diagram in diadefs: |
| basename = diagram.title.strip().replace(' ', '_') |
| file_name = '%s.%s' % (basename, self.config.output_format) |
| self.set_printer(file_name, basename) |
| if diagram.TYPE == 'class': |
| self.write_classes(diagram) |
| else: |
| self.write_packages(diagram) |
| self.close_graph() |
| |
| def write_packages(self, diagram): |
| """write a package diagram""" |
| for obj in diagram.modules(): |
| label = self.get_title(obj) |
| self.printer.emit_node(obj.fig_id, label=label, shape='box') |
| # package dependencies |
| for rel in diagram.relationships.get('depends', ()): |
| self.printer.emit_edge(rel.from_object.fig_id, rel.to_object.fig_id, |
| **self.pkg_edges) |
| |
| def write_classes(self, diagram): |
| """write a class diagram""" |
| for obj in diagram.objects: |
| self.printer.emit_node(obj.fig_id, **self.get_values(obj) ) |
| # inheritance links |
| for rel in diagram.relationships.get('specialization', ()): |
| self.printer.emit_edge(rel.from_object.fig_id, rel.to_object.fig_id, |
| **self.inh_edges) |
| # implementation links |
| for rel in diagram.relationships.get('implements', ()): |
| self.printer.emit_edge(rel.from_object.fig_id, rel.to_object.fig_id, |
| **self.imp_edges) |
| # generate associations |
| for rel in diagram.relationships.get('association', ()): |
| self.printer.emit_edge(rel.from_object.fig_id, rel.to_object.fig_id, |
| label=rel.name, **self.ass_edges) |
| |
| def set_printer(self, file_name, basename): |
| """set printer""" |
| raise NotImplementedError |
| |
| def get_title(self, obj): |
| """get project title""" |
| raise NotImplementedError |
| |
| def get_values(self, obj): |
| """get label and shape for classes.""" |
| raise NotImplementedError |
| |
| def close_graph(self): |
| """finalize the graph""" |
| raise NotImplementedError |
| |
| |
| class DotWriter(DiagramWriter): |
| """write dot graphs from a diagram definition and a project |
| """ |
| |
| def __init__(self, config): |
| styles = [dict(arrowtail='none', arrowhead="open"), |
| dict(arrowtail = "none", arrowhead='empty'), |
| dict(arrowtail="node", arrowhead='empty', style='dashed'), |
| dict(fontcolor='green', arrowtail='none', |
| arrowhead='diamond', style='solid') ] |
| DiagramWriter.__init__(self, config, styles) |
| |
| def set_printer(self, file_name, basename): |
| """initialize DotWriter and add options for layout. |
| """ |
| layout = dict(rankdir="BT") |
| self.printer = DotBackend(basename, additionnal_param=layout) |
| self.file_name = file_name |
| |
| def get_title(self, obj): |
| """get project title""" |
| return obj.title |
| |
| def get_values(self, obj): |
| """get label and shape for classes. |
| |
| The label contains all attributes and methods |
| """ |
| label = obj.title |
| if obj.shape == 'interface': |
| label = "«interface»\\n%s" % label |
| if not self.config.only_classnames: |
| label = "%s|%s\l|" % (label, r"\l".join(obj.attrs) ) |
| for func in obj.methods: |
| label = r'%s%s()\l' % (label, func.name) |
| label = '{%s}' % label |
| if is_exception(obj.node): |
| return dict(fontcolor="red", label=label, shape="record") |
| return dict(label=label, shape="record") |
| |
| def close_graph(self): |
| """print the dot graph into <file_name>""" |
| self.printer.generate(self.file_name) |
| |
| |
| class VCGWriter(DiagramWriter): |
| """write vcg graphs from a diagram definition and a project |
| """ |
| def __init__(self, config): |
| styles = [dict(arrowstyle='solid', backarrowstyle='none', |
| backarrowsize=0), |
| dict(arrowstyle='solid', backarrowstyle='none', |
| backarrowsize=10), |
| dict(arrowstyle='solid', backarrowstyle='none', |
| linestyle='dotted', backarrowsize=10), |
| dict(arrowstyle='solid', backarrowstyle='none', |
| textcolor='green') ] |
| DiagramWriter.__init__(self, config, styles) |
| |
| def set_printer(self, file_name, basename): |
| """initialize VCGWriter for a UML graph""" |
| self.graph_file = open(file_name, 'w+') |
| self.printer = VCGPrinter(self.graph_file) |
| self.printer.open_graph(title=basename, layoutalgorithm='dfs', |
| late_edge_labels='yes', port_sharing='no', |
| manhattan_edges='yes') |
| self.printer.emit_node = self.printer.node |
| self.printer.emit_edge = self.printer.edge |
| |
| def get_title(self, obj): |
| """get project title in vcg format""" |
| return r'\fb%s\fn' % obj.title |
| |
| def get_values(self, obj): |
| """get label and shape for classes. |
| |
| The label contains all attributes and methods |
| """ |
| if is_exception(obj.node): |
| label = r'\fb\f09%s\fn' % obj.title |
| else: |
| label = r'\fb%s\fn' % obj.title |
| if obj.shape == 'interface': |
| shape = 'ellipse' |
| else: |
| shape = 'box' |
| if not self.config.only_classnames: |
| attrs = obj.attrs |
| methods = [func.name for func in obj.methods] |
| # box width for UML like diagram |
| maxlen = max(len(name) for name in [obj.title] + methods + attrs) |
| line = "_" * (maxlen + 2) |
| label = r'%s\n\f%s' % (label, line) |
| for attr in attrs: |
| label = r'%s\n\f08%s' % (label, attr) |
| if attrs: |
| label = r'%s\n\f%s' % (label, line) |
| for func in methods: |
| label = r'%s\n\f10%s()' % (label, func) |
| return dict(label=label, shape=shape) |
| |
| def close_graph(self): |
| """close graph and file""" |
| self.printer.close_graph() |
| self.graph_file.close() |
| |
