--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/views/dotgraphview.py Tue Aug 10 16:10:28 2010 +0200
@@ -0,0 +1,80 @@
+# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb 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 Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
+"""some basic stuff to build dot generated graph images"""
+
+__docformat__ = "restructuredtext en"
+_ = unicode
+
+import tempfile
+import os
+
+from logilab.mtconverter import xml_escape
+from logilab.common.graph import GraphGenerator, DotBackend
+
+from cubicweb.view import EntityView
+from cubicweb.utils import make_uid
+
+class DotGraphView(EntityView):
+ __abstract__ = True
+
+ def cell_call(self, row, col):
+ entity = self.cw_rset.get_entity(row, col)
+ visitor = self.build_visitor(entity)
+ prophdlr = self.build_dotpropshandler()
+ graphname = 'dotgraph%s' % str(entity.eid)
+ generator = GraphGenerator(DotBackend(graphname, None,
+ ratio='compress', size='30,10'))
+ # map file
+ pmap, mapfile = tempfile.mkstemp(".map", graphname)
+ os.close(pmap)
+ # image file
+ fd, tmpfile = tempfile.mkstemp('.png')
+ os.close(fd)
+ generator.generate(visitor, prophdlr, tmpfile, mapfile)
+ filekeyid = make_uid()
+ self._cw.session.data[filekeyid] = tmpfile
+ self.w(u'<img src="%s" alt="%s" usemap="#%s" />' % (
+ xml_escape(entity.absolute_url(vid='tmppng', tmpfile=filekeyid)),
+ xml_escape(self._cw._('Data connection graph for %s') % entity.name),
+ graphname))
+ stream = open(mapfile, 'r').read()
+ stream = stream.decode(self._cw.encoding)
+ self.w(stream)
+ os.unlink(mapfile)
+
+ def build_visitor(self, entity):
+ raise NotImplementedError
+
+ def build_dotpropshandler(self):
+ return DotGraphPropsHandler(self._cw)
+
+
+class DotPropsHandler(object):
+ def __init__(self, req):
+ self._ = req._
+
+ def node_properties(self, entity):
+ """return default DOT drawing options for a state or transition"""
+ return {'label': entity.printable_value('name'),
+ 'href': entity.absolute_url(),
+ 'fontname': 'Courier', 'fontsize': 10, 'shape':'box',
+ }
+
+ def edge_properties(self, transition, fromstate, tostate):
+ return {'label': '', 'dir': 'forward',
+ 'color': 'black', 'style': 'filled'}
--- a/web/views/primary.py Tue Aug 10 18:27:02 2010 +0200
+++ b/web/views/primary.py Tue Aug 10 16:10:28 2010 +0200
@@ -285,6 +285,7 @@
return label
return u''
+
class RelatedView(EntityView):
__regid__ = 'autolimited'
--- a/web/views/workflow.py Tue Aug 10 18:27:02 2010 +0200
+++ b/web/views/workflow.py Tue Aug 10 16:10:28 2010 +0200
@@ -24,17 +24,15 @@
__docformat__ = "restructuredtext en"
_ = unicode
-import tempfile
import os
from logilab.mtconverter import xml_escape
-from logilab.common.graph import escape, GraphGenerator, DotBackend
+from logilab.common.graph import escape
from cubicweb import Unauthorized, view
from cubicweb.selectors import (has_related_entities, one_line_rset,
relation_possible, match_form_params,
score_entity, is_instance, adaptable)
-from cubicweb.utils import make_uid
from cubicweb.view import EntityView
from cubicweb.schema import display_name
from cubicweb.web import uicfg, stdmsgs, action, component, form, action
@@ -42,6 +40,7 @@
from cubicweb.web.views import TmpFileViewMixin
from cubicweb.web.views import forms, primary, autoform, ibreadcrumbs
from cubicweb.web.views.tabs import TabbedPrimaryView, PrimaryTab
+from cubicweb.web.views.dotgraphview import DotGraphView, DotPropsHandler
_pvs = uicfg.primaryview_section
_pvs.tag_subject_of(('Workflow', 'initial_state', '*'), 'hidden')
@@ -374,16 +373,11 @@
# workflow images ##############################################################
-class WorkflowDotPropsHandler(object):
- def __init__(self, req):
- self._ = req._
+class WorkflowDotPropsHandler(DotPropsHandler):
def node_properties(self, stateortransition):
"""return default DOT drawing options for a state or transition"""
- props = {'label': stateortransition.printable_value('name'),
- 'fontname': 'Courier', 'fontsize':10,
- 'href': stateortransition.absolute_url(),
- }
+ props = super(WorkflowDotPropsHandler, self).node_properties(stateortransition)
if hasattr(stateortransition, 'state_of'):
props['shape'] = 'box'
props['style'] = 'filled'
@@ -397,10 +391,6 @@
props['label'] += escape('\n'.join(descr))
return props
- def edge_properties(self, transition, fromstate, tostate):
- return {'label': '', 'dir': 'forward',
- 'color': 'black', 'style': 'filled'}
-
class WorkflowVisitor:
def __init__(self, entity):
@@ -421,35 +411,15 @@
for outgoingstate in transition.potential_destinations():
yield transition.eid, outgoingstate.eid, transition
-
-class WorkflowGraphView(view.EntityView):
+class WorkflowGraphView(DotGraphView):
__regid__ = 'wfgraph'
__select__ = EntityView.__select__ & one_line_rset() & is_instance('Workflow')
- def cell_call(self, row, col):
- entity = self.cw_rset.get_entity(row, col)
- visitor = WorkflowVisitor(entity)
- prophdlr = WorkflowDotPropsHandler(self._cw)
- wfname = 'workflow%s' % str(entity.eid)
- generator = GraphGenerator(DotBackend(wfname, None,
- ratio='compress', size='30,10'))
- # map file
- pmap, mapfile = tempfile.mkstemp(".map", wfname)
- os.close(pmap)
- # image file
- fd, tmpfile = tempfile.mkstemp('.png')
- os.close(fd)
- generator.generate(visitor, prophdlr, tmpfile, mapfile)
- filekeyid = make_uid()
- self._cw.session.data[filekeyid] = tmpfile
- self.w(u'<img src="%s" alt="%s" usemap="#%s" />' % (
- xml_escape(entity.absolute_url(vid='tmppng', tmpfile=filekeyid)),
- xml_escape(self._cw._('graphical workflow for %s') % entity.name),
- wfname))
- stream = open(mapfile, 'r').read()
- stream = stream.decode(self._cw.encoding)
- self.w(stream)
- os.unlink(mapfile)
+ def build_visitor(self, entity):
+ return WorkflowVisitor(entity)
+
+ def build_dotpropshandler(self):
+ return WorkflowPropsHandler(self._cw)
class TmpPngView(TmpFileViewMixin, view.EntityView):