layout.py 文件源码

def generate_document(self, data):
        packet = StringIO()
        if self.template_file is not None:
            template = PdfFileReader(open(self.template_file, 'rb'))
        c = canvas.Canvas(packet, pagesize=(self.width, self.height))

        i = 0
        for field_cls in self.fields:
            # TODO: Catch exception if there is less columns than fields
            field = field_cls(self, c, data[i])
            field.render()
            i += 1

        # Save canvas
        c.save()
        packet.seek(0)
        text = PdfFileReader(packet)
        output = PdfFileWriter()
        if self.template_file is not None:
            # Merge text with base
            page = template.getPage(0)
            page.mergePage(text.getPage(0))
        else:
            page = text.getPage(0)
        output.addPage(page)

        # Save file
        filename = "%s/%s.pdf" % (self.output_dir, self.generate_filename(data))
        outputStream = open(filename, 'wb')
        output.write(outputStream)
        outputStream.close()