31 |
32 |
32 class DotGraphView(EntityView): |
33 class DotGraphView(EntityView): |
33 __abstract__ = True |
34 __abstract__ = True |
34 backend_class = DotBackend |
35 backend_class = DotBackend |
35 backend_kwargs = {'ratio': 'compress', 'size': '30,10'} |
36 backend_kwargs = {'ratio': 'compress', 'size': '30,10'} |
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37 |
36 def cell_call(self, row, col): |
38 def cell_call(self, row, col): |
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39 if 'MSIE 8' in self._cw.useragent(): |
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40 return |
37 entity = self.cw_rset.get_entity(row, col) |
41 entity = self.cw_rset.get_entity(row, col) |
38 visitor = self.build_visitor(entity) |
42 visitor = self.build_visitor(entity) |
39 prophdlr = self.build_dotpropshandler() |
43 prophdlr = self.build_dotpropshandler() |
40 graphname = 'dotgraph%s' % str(entity.eid) |
44 graphname = 'dotgraph%s' % str(entity.eid) |
41 generator = GraphGenerator(self.backend_class(graphname, None, |
45 generator = GraphGenerator(self.backend_class(graphname, None, |
42 **self.backend_kwargs)) |
46 **self.backend_kwargs)) |
43 # map file |
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44 pmap, mapfile = tempfile.mkstemp(".map", graphname) |
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45 os.close(pmap) |
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46 # image file |
47 # image file |
47 fd, tmpfile = tempfile.mkstemp('.png') |
48 fd, tmpfile = tempfile.mkstemp('.svg') |
48 os.close(fd) |
49 os.close(fd) |
49 generator.generate(visitor, prophdlr, tmpfile, mapfile) |
50 generator.generate(visitor, prophdlr, tmpfile) |
50 filekeyid = make_uid() |
51 with codecs.open(tmpfile, 'rb', encoding='utf-8') as svgfile: |
51 self._cw.session.data[filekeyid] = tmpfile |
52 self.w(svgfile.read()) |
52 self.w(u'<img src="%s" alt="%s" usemap="#%s" />' % ( |
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53 xml_escape(entity.absolute_url(vid='tmppng', tmpfile=filekeyid)), |
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54 xml_escape(self._cw._('Data connection graph for %s') % entity.dc_title()), |
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55 graphname)) |
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56 stream = open(mapfile, 'r').read() |
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57 stream = stream.decode(self._cw.encoding) |
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58 self.w(stream) |
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59 os.unlink(mapfile) |
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60 |
53 |
61 def build_visitor(self, entity): |
54 def build_visitor(self, entity): |
62 raise NotImplementedError |
55 raise NotImplementedError |
63 |
56 |
64 def build_dotpropshandler(self): |
57 def build_dotpropshandler(self): |