7258: Work around PyCairo path issue by opening the target file first.
PyCairo, even the latest version, insists on using the 'mbcs' codec on path names on Windows. That destroys pathnames with characters that aren't in the current default code-page.
This commit is contained in:
John Ralls
parent
4265fc1571
commit
3196f8c44f
@ -96,103 +96,105 @@ class CairoDocgen(libcairodoc.CairoDoc):
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# create cairo context and pango layout
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filename = self._backend.filename
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# Work around a bug in pycairo 1.8.10 and earlier. OSX and
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# Win32 AIOs use pycairo 1.10.0, in which the bug is fixed.
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if (sys.version_info[0] < 3 and lin()):
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filename = filename.encode(glocale.getfilesystemencoding())
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try:
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surface = self.create_cairo_surface(filename, paper_width, paper_height)
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except IOError as msg:
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errmsg = "%s\n%s" % (_("Could not create %s") % filename, msg)
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raise ReportError(errmsg)
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except Exception as err:
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errmsg = "%s\n%s" % (_("Could not create %s") % filename, err)
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raise ReportError(errmsg)
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surface.set_fallback_resolution(300, 300)
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cr = cairo.Context(surface)
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fontmap = PangoCairo.font_map_new()
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fontmap.set_resolution(DPI)
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pango_context = fontmap.create_context()
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options = cairo.FontOptions()
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options.set_hint_metrics(cairo.HINT_METRICS_OFF)
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PangoCairo.context_set_font_options(pango_context, options)
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layout = Pango.Layout(pango_context)
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PangoCairo.update_context(cr, pango_context)
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# paginate the document
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self.paginate_document(layout, page_width, page_height, DPI, DPI)
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body_pages = self._pages
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# Cairo can't reliably handle unicode filenames on Linux or
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# Windows, so open the file for it.
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with open(filename, 'wb') as fd:
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try:
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surface = self.create_cairo_surface(fd, paper_width,
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paper_height)
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surface.set_fallback_resolution(300, 300)
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cr = cairo.Context(surface)
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fontmap = PangoCairo.font_map_new()
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fontmap.set_resolution(DPI)
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pango_context = fontmap.create_context()
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options = cairo.FontOptions()
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options.set_hint_metrics(cairo.HINT_METRICS_OFF)
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PangoCairo.context_set_font_options(pango_context, options)
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layout = Pango.Layout(pango_context)
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PangoCairo.update_context(cr, pango_context)
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# paginate the document
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self.paginate_document(layout, page_width, page_height,
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DPI, DPI)
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body_pages = self._pages
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# build the table of contents and alphabetical index
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toc_page = None
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index_page = None
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toc = []
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index = {}
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for page_nr, page in enumerate(body_pages):
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if page.has_toc():
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toc_page = page_nr
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if page.has_index():
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index_page = page_nr
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for mark in page.get_marks():
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if mark.type == INDEX_TYPE_ALP:
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if mark.key in index:
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if page_nr + 1 not in index[mark.key]:
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index[mark.key].append(page_nr + 1)
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# build the table of contents and alphabetical index
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toc_page = None
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index_page = None
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toc = []
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index = {}
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for page_nr, page in enumerate(body_pages):
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if page.has_toc():
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toc_page = page_nr
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if page.has_index():
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index_page = page_nr
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for mark in page.get_marks():
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if mark.type == INDEX_TYPE_ALP:
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if mark.key in index:
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if page_nr + 1 not in index[mark.key]:
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index[mark.key].append(page_nr + 1)
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else:
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index[mark.key] = [page_nr + 1]
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elif mark.type == INDEX_TYPE_TOC:
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toc.append([mark, page_nr + 1])
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# paginate the table of contents
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rebuild_required = False
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if toc_page is not None:
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toc_pages = self.__generate_toc(layout, page_width,
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page_height, toc)
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offset = len(toc_pages) - 1
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if offset > 0:
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self.__increment_pages(toc, index, toc_page, offset)
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rebuild_required = True
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else:
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index[mark.key] = [page_nr + 1]
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elif mark.type == INDEX_TYPE_TOC:
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toc.append([mark, page_nr + 1])
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toc_pages = []
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# paginate the table of contents
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rebuild_required = False
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if toc_page is not None:
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toc_pages = self.__generate_toc(layout, page_width, page_height,
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toc)
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offset = len(toc_pages) - 1
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if offset > 0:
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self.__increment_pages(toc, index, toc_page, offset)
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rebuild_required = True
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else:
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toc_pages = []
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# paginate the index
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if index_page is not None:
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index_pages = self.__generate_index(layout, page_width,
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page_height, index)
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offset = len(index_pages) - 1
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if offset > 0:
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self.__increment_pages(toc, index, index_page, offset)
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rebuild_required = True
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else:
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index_pages = []
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# paginate the index
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if index_page is not None:
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index_pages = self.__generate_index(layout, page_width, page_height,
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index)
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offset = len(index_pages) - 1
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if offset > 0:
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self.__increment_pages(toc, index, index_page, offset)
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rebuild_required = True
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else:
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index_pages = []
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# rebuild the table of contents and index if required
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if rebuild_required:
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if toc_page is not None:
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toc_pages = self.__generate_toc(layout, page_width,
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page_height, toc)
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if index_page is not None:
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index_pages = self.__generate_index(layout, page_width,
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page_height, index)
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# rebuild the table of contents and index if required
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if rebuild_required:
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if toc_page is not None:
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toc_pages = self.__generate_toc(layout, page_width, page_height,
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toc)
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if index_page is not None:
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index_pages = self.__generate_index(layout, page_width,
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page_height, index)
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# render the pages
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if toc_page is not None:
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body_pages = body_pages[:toc_page] + toc_pages + \
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body_pages[toc_page+1:]
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if index_page is not None:
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body_pages = body_pages[:index_page] + index_pages + \
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body_pages[index_page+1:]
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self._pages = body_pages
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for page_nr in range(len(self._pages)):
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cr.save()
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cr.translate(left_margin, top_margin)
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self.draw_page(page_nr, cr, layout,
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page_width, page_height,
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DPI, DPI)
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cr.show_page()
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cr.restore()
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# render the pages
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if toc_page is not None:
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body_pages = body_pages[:toc_page] + toc_pages + \
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body_pages[toc_page+1:]
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if index_page is not None:
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body_pages = body_pages[:index_page] + index_pages + \
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body_pages[index_page+1:]
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self._pages = body_pages
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for page_nr in range(len(self._pages)):
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cr.save()
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cr.translate(left_margin, top_margin)
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self.draw_page(page_nr, cr, layout,
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page_width, page_height,
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DPI, DPI)
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cr.show_page()
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cr.restore()
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# close the surface (file)
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surface.finish()
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# close the surface (file)
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surface.finish()
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except IOError as msg:
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errmsg = "%s\n%s" % (_("Could not create %s") % filename, msg)
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raise ReportError(errmsg)
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except Exception as err:
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errmsg = "%s\n%s" % (_("Could not create %s") % filename, err)
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raise ReportError(errmsg)
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def __increment_pages(self, toc, index, start_page, offset):
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"""
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