__init__.py 文件源码

def visit_image(self, node):
        # Capture the image file.
        if 'uri' in node.attributes:
            source = node.attributes['uri']
            if not source.startswith('http:'):
                if not source.startswith(os.sep):
                    docsource, line = utils.get_source_line(node)
                    if docsource:
                        dirname = os.path.dirname(docsource)
                        if dirname:
                            source = '%s%s%s' % (dirname, os.sep, source, )
                if not self.check_file_exists(source):
                    self.document.reporter.warning(
                        'Cannot find image file %s.' % (source, ))
                    return
        else:
            return
        if source in self.image_dict:
            filename, destination = self.image_dict[source]
        else:
            self.image_count += 1
            filename = os.path.split(source)[1]
            destination = 'Pictures/1%08x%s' % (self.image_count, filename, )
            if source.startswith('http:'):
                try:
                    imgfile = urllib2.urlopen(source)
                    content = imgfile.read()
                    imgfile.close()
                    imgfile2 = tempfile.NamedTemporaryFile('wb', delete=False)
                    imgfile2.write(content)
                    imgfile2.close()
                    imgfilename = imgfile2.name
                    source = imgfilename
                except urllib2.HTTPError, e:
                    self.document.reporter.warning(
                        "Can't open image url %s." % (source, ))
                spec = (source, destination,)
            else:
                spec = (os.path.abspath(source), destination,)
            self.embedded_file_list.append(spec)
            self.image_dict[source] = (source, destination,)
        # Is this a figure (containing an image) or just a plain image?
        if self.in_paragraph:
            el1 = self.current_element
        else:
            el1 = SubElement(self.current_element, 'text:p',
                attrib={'text:style-name': self.rststyle('textbody')})
        el2 = el1
        if isinstance(node.parent, docutils.nodes.figure):
            el3, el4, el5, caption = self.generate_figure(node, source,
                destination, el2)
            attrib = {}
            el6, width = self.generate_image(node, source, destination,
                el5, attrib)
            if caption is not None:
                el6.tail = caption
        else:   #if isinstance(node.parent, docutils.nodes.image):
            el3 = self.generate_image(node, source, destination, el2)