def __init__(self, workbook):
self.workbook = workbook
self.style_writer = StyleWriter(self.workbook)
def __init__(self, workbook):
self.workbook = workbook
self.style_writer = StyleWriter(self.workbook)
class ExcelWriter(object):
"""Write a workbook object to an Excel file."""
def __init__(self, workbook):
self.workbook = workbook
self.style_writer = StyleWriter(self.workbook)
def write_data(self, archive):
"""Write the various xml files into the zip archive."""
# cleanup all worksheets
shared_string_table = self._write_string_table(archive)
archive.writestr(ARC_CONTENT_TYPES, write_content_types(self.workbook))
archive.writestr(ARC_ROOT_RELS, write_root_rels(self.workbook))
archive.writestr(ARC_WORKBOOK_RELS, write_workbook_rels(self.workbook))
archive.writestr(ARC_APP, write_properties_app(self.workbook))
archive.writestr(ARC_CORE,
write_properties_core(self.workbook.properties))
if self.workbook.loaded_theme:
archive.writestr(ARC_THEME, self.workbook.loaded_theme)
else:
archive.writestr(ARC_THEME, write_theme())
archive.writestr(ARC_STYLE, self.style_writer.write_table())
archive.writestr(ARC_WORKBOOK, write_workbook(self.workbook))
self._write_worksheets(archive, shared_string_table, self.style_writer)
def _write_string_table(self, archive):
for ws in self.workbook.worksheets:
ws.garbage_collect()
shared_string_table = create_string_table(self.workbook)
archive.writestr(ARC_SHARED_STRINGS,
write_string_table(shared_string_table))
return shared_string_table
def _write_worksheets(self, archive, shared_string_table, style_writer):
drawing_id = 1
chart_id = 1
image_id = 1
shape_id = 1
for i, sheet in enumerate(self.workbook.worksheets):
archive.writestr(
PACKAGE_WORKSHEETS + '/sheet%d.xml' % (i + 1),
write_worksheet(sheet, shared_string_table,
style_writer.get_style_by_hash()))
if sheet._charts or sheet._images or sheet.relationships:
archive.writestr(
PACKAGE_WORKSHEETS + '/_rels/sheet%d.xml.rels' % (i + 1),
write_worksheet_rels(sheet, drawing_id))
if sheet._charts or sheet._images:
dw = DrawingWriter(sheet)
archive.writestr(
PACKAGE_DRAWINGS + '/drawing%d.xml' % drawing_id,
dw.write())
archive.writestr(
PACKAGE_DRAWINGS +
'/_rels/drawing%d.xml.rels' % drawing_id,
dw.write_rels(chart_id, image_id))
drawing_id += 1
for chart in sheet._charts:
cw = ChartWriter(chart)
archive.writestr(
PACKAGE_CHARTS + '/chart%d.xml' % chart_id, cw.write())
if chart._shapes:
archive.writestr(
PACKAGE_CHARTS +
'/_rels/chart%d.xml.rels' % chart_id,
cw.write_rels(drawing_id))
sw = ShapeWriter(chart._shapes)
archive.writestr(
PACKAGE_DRAWINGS + '/drawing%d.xml' % drawing_id,
sw.write(shape_id))
shape_id += len(chart._shapes)
drawing_id += 1
chart_id += 1
for img in sheet._images:
buf = StringIO()
img.image.save(buf, format='PNG')
archive.writestr(
PACKAGE_IMAGES + '/image%d.png' % image_id,
buf.getvalue())
image_id += 1
def save(self, filename):
"""Write data into the archive."""
archive = ZipFile(filename, 'w', ZIP_DEFLATED)
self.write_data(archive)
archive.close()
class ExcelWriter(object):
"""Write a workbook object to an Excel file."""
def __init__(self, workbook):
self.workbook = workbook
self.style_writer = StyleWriter(self.workbook)
def write_data(self, archive):
"""Write the various xml files into the zip archive."""
# cleanup all worksheets
shared_string_table = self._write_string_table(archive)
archive.writestr(ARC_CONTENT_TYPES, write_content_types(self.workbook))
archive.writestr(ARC_ROOT_RELS, write_root_rels(self.workbook))
archive.writestr(ARC_WORKBOOK_RELS, write_workbook_rels(self.workbook))
archive.writestr(ARC_APP, write_properties_app(self.workbook))
archive.writestr(ARC_CORE,
write_properties_core(self.workbook.properties))
if self.workbook.loaded_theme:
archive.writestr(ARC_THEME, self.workbook.loaded_theme)
else:
archive.writestr(ARC_THEME, write_theme())
archive.writestr(ARC_STYLE, self.style_writer.write_table())
archive.writestr(ARC_WORKBOOK, write_workbook(self.workbook))
self._write_worksheets(archive, shared_string_table, self.style_writer)
def _write_string_table(self, archive):
for ws in self.workbook.worksheets:
ws.garbage_collect()
shared_string_table = create_string_table(self.workbook)
archive.writestr(ARC_SHARED_STRINGS,
write_string_table(shared_string_table))
return shared_string_table
def _write_worksheets(self, archive, shared_string_table, style_writer):
drawing_id = 1
chart_id = 1
image_id = 1
shape_id = 1
for i, sheet in enumerate(self.workbook.worksheets):
archive.writestr(PACKAGE_WORKSHEETS + '/sheet%d.xml' % (i + 1),
write_worksheet(sheet, shared_string_table,
style_writer.get_style_by_hash()))
if sheet._charts or sheet._images or sheet.relationships:
archive.writestr(PACKAGE_WORKSHEETS +
'/_rels/sheet%d.xml.rels' % (i + 1),
write_worksheet_rels(sheet, drawing_id))
if sheet._charts or sheet._images:
dw = DrawingWriter(sheet)
archive.writestr(PACKAGE_DRAWINGS + '/drawing%d.xml' % drawing_id,
dw.write())
archive.writestr(PACKAGE_DRAWINGS + '/_rels/drawing%d.xml.rels' % drawing_id,
dw.write_rels(chart_id, image_id))
drawing_id += 1
for chart in sheet._charts:
cw = ChartWriter(chart)
archive.writestr(PACKAGE_CHARTS + '/chart%d.xml' % chart_id,
cw.write())
if chart._shapes:
archive.writestr(PACKAGE_CHARTS + '/_rels/chart%d.xml.rels' % chart_id,
cw.write_rels(drawing_id))
sw = ShapeWriter(chart._shapes)
archive.writestr(PACKAGE_DRAWINGS + '/drawing%d.xml' % drawing_id,
sw.write(shape_id))
shape_id += len(chart._shapes)
drawing_id += 1
chart_id += 1
for img in sheet._images:
buf = StringIO()
img.image.save(buf, format= 'PNG')
archive.writestr(PACKAGE_IMAGES + '/image%d.png' % image_id, buf.getvalue())
image_id += 1
def save(self, filename):
"""Write data into the archive."""
archive = ZipFile(filename, 'w', ZIP_DEFLATED)
self.write_data(archive)
archive.close()
