Refactoring PSDrawDoc and PdfDoc common base
Split PSDrawDoc into CairoDocgen and PSDrawDoc with overrides only. PdfDoc still not refactored. svn: r22804
This commit is contained in:
Vassilii Khachaturov
@ -1,8 +1,6 @@
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#
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#
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# Gramps - a GTK+/GNOME based genealogy program
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# Gramps - a GTK+/GNOME based genealogy program
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#
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#
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# Copyright (C) 2007 Zsolt Foldvari
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# Copyright (C) 2008 Brian G. Matherly
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# Copyright (C) 2013 Vassilii Khachaturov
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# Copyright (C) 2013 Vassilii Khachaturov
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#
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#
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# This program is free software; you can redistribute it and/or modify
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# This program is free software; you can redistribute it and/or modify
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@ -25,263 +23,13 @@
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"""PS output generator based on Cairo.
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"""PS output generator based on Cairo.
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"""
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"""
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#------------------------------------------------------------------------
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#
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# Python modules
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#
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#------------------------------------------------------------------------
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from gen.ggettext import gettext as _
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import sys
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import sys
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#------------------------------------------------------------------------
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#
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# Gramps modules
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#
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#------------------------------------------------------------------------
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import libcairodoc
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from gen.plug.docgen import INDEX_TYPE_ALP, INDEX_TYPE_TOC
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import Errors
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#------------------------------------------------------------------------
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#
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# Set up logging
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#
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#------------------------------------------------------------------------
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import logging
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LOG = logging.getLogger(".PSDrawDoc")
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#-------------------------------------------------------------------------
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#
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# GTK modules
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#
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#-------------------------------------------------------------------------
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import pango
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import cairo
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import cairo
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import pangocairo
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from _cairodoc import CairoDocgen
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#------------------------------------------------------------------------
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class PSDrawDoc(CairoDocgen):
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#
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# Constants
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#
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#------------------------------------------------------------------------
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# resolution
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DPI = 72.0
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#------------------------------------------------------------------------
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#
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# PSDrawDoc class
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#
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#------------------------------------------------------------------------
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class PSDrawDoc(libcairodoc.CairoDoc):
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"""Render the document into PS file using Cairo.
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"""Render the document into PS file using Cairo.
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"""
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"""
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EXT = 'ps'
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EXT = 'ps'
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def create_cairo_surface(self, fobj, width_in_points, height_in_points):
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def run(self):
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return cairo.PSSurface(fobj, width_in_points, height_in_points)
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"""Create the PS output.
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"""
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# get paper dimensions
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paper_width = self.paper.get_size().get_width() * DPI / 2.54
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paper_height = self.paper.get_size().get_height() * DPI / 2.54
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page_width = round(self.paper.get_usable_width() * DPI / 2.54)
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page_height = round(self.paper.get_usable_height() * DPI / 2.54)
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left_margin = self.paper.get_left_margin() * DPI / 2.54
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top_margin = self.paper.get_top_margin() * DPI / 2.54
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# create cairo context and pango layout
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filename = self._backend.filename.encode(sys.getfilesystemencoding())
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try:
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surface = cairo.PSSurface(filename, paper_width, paper_height)
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except IOError,msg:
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errmsg = "%s\n%s" % (_("Could not create %s") % filename, msg)
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raise Errors.ReportError(errmsg)
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except:
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raise Errors.ReportError(_("Could not create %s") % filename)
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surface.set_fallback_resolution(300, 300)
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cr = pangocairo.CairoContext(cairo.Context(surface))
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fontmap = pangocairo.cairo_font_map_get_default()
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saved_resolution = fontmap.get_resolution()
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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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cr.update_context(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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# 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, 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, 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, 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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# close the surface (file)
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surface.finish()
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# Restore the resolution. On windows, Gramps UI fonts will be smaller
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# if we don't restore the resolution.
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fontmap.set_resolution(saved_resolution)
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def __increment_pages(self, toc, index, start_page, offset):
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"""
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Increment the page numbers in the table of contents and index.
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"""
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for n, value in enumerate(toc):
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page_nr = toc[n][1]
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toc[n][1] = page_nr + (offset if page_nr > start_page else 0)
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for key, value in index.iteritems():
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index[key] = [page_nr + (offset if page_nr > start_page else 0)
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for page_nr in value]
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def __generate_toc(self, layout, page_width, page_height, toc):
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"""
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Generate the table of contents.
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"""
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self._doc = libcairodoc.GtkDocDocument()
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self._active_element = self._doc
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self._pages = []
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write_toc(toc, self)
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self.paginate_document(layout, page_width, page_height, DPI, DPI)
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return self._pages
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def __generate_index(self, layout, page_width, page_height, index):
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"""
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Generate the index.
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"""
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self._doc = libcairodoc.GtkDocDocument()
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self._active_element = self._doc
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self._pages = []
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write_index(index, self)
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self.paginate_document(layout, page_width, page_height, DPI, DPI)
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return self._pages
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def write_toc(toc, doc):
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"""
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Write the table of contents.
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"""
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if not toc:
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return
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doc.start_paragraph('TOC-Title')
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doc.write_text(_('Contents'))
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doc.end_paragraph()
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doc.start_table('toc', 'TOC-Table')
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for mark, page_nr in toc:
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doc.start_row()
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doc.start_cell('TOC-Cell')
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if mark.level == 1:
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style_name = "TOC-Heading1"
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elif mark.level == 2:
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style_name = "TOC-Heading2"
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else:
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style_name = "TOC-Heading3"
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doc.start_paragraph(style_name)
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doc.write_text(mark.key)
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doc.end_paragraph()
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doc.end_cell()
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doc.start_cell('TOC-Cell')
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doc.start_paragraph(style_name)
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doc.write_text(str(page_nr))
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doc.end_paragraph()
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doc.end_cell()
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doc.end_row()
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doc.end_table()
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def write_index(index, doc):
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"""
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Write the alphabetical index.
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"""
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if not index:
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return
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doc.start_paragraph('IDX-Title')
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doc.write_text(_('Index'))
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doc.end_paragraph()
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doc.start_table('index', 'IDX-Table')
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for key in sorted(index.iterkeys()):
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doc.start_row()
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doc.start_cell('IDX-Cell')
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doc.start_paragraph('IDX-Entry')
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doc.write_text(key)
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doc.end_paragraph()
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doc.end_cell()
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doc.start_cell('IDX-Cell')
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doc.start_paragraph('IDX-Entry')
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pages = [str(page_nr) for page_nr in index[key]]
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doc.write_text(', '.join(pages))
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doc.end_paragraph()
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doc.end_cell()
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doc.end_row()
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doc.end_table()
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293
src/plugins/docgen/_cairodoc.py
Normal file
293
src/plugins/docgen/_cairodoc.py
Normal file
@ -0,0 +1,293 @@
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#
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# Gramps - a GTK+/GNOME based genealogy program
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|
#
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# Copyright (C) 2007 Zsolt Foldvari
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# Copyright (C) 2008 Brian G. Matherly
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|
# Copyright (C) 2013 Vassilii Khachaturov
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|
#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
|
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# the Free Software Foundation; either version 2 of the License, or
|
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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|
# GNU General Public License for more details.
|
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|
#
|
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|
# You should have received a copy of the GNU General Public License
|
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|
# along with this program; if not, write to the Free Software
|
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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"""PS output generator based on Cairo.
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"""
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#------------------------------------------------------------------------
|
||||||
|
#
|
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|
# Python modules
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||||||
|
#
|
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|
#------------------------------------------------------------------------
|
||||||
|
from gen.ggettext import gettext as _
|
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|
import sys
|
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|
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|
#------------------------------------------------------------------------
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|
#
|
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|
# Gramps modules
|
||||||
|
#
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|
#------------------------------------------------------------------------
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|
import libcairodoc
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|
from gen.plug.docgen import INDEX_TYPE_ALP, INDEX_TYPE_TOC
|
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|
import Errors
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|
|
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|
#------------------------------------------------------------------------
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|
#
|
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|
# Set up logging
|
||||||
|
#
|
||||||
|
#------------------------------------------------------------------------
|
||||||
|
import logging
|
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|
LOG = logging.getLogger(".cairodoc")
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|
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|
#-------------------------------------------------------------------------
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||||||
|
#
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|
# GTK modules
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||||||
|
#
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|
#-------------------------------------------------------------------------
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|
import pango
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import cairo
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import pangocairo
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|
|
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|
#------------------------------------------------------------------------
|
||||||
|
#
|
||||||
|
# Constants
|
||||||
|
#
|
||||||
|
#------------------------------------------------------------------------
|
||||||
|
|
||||||
|
# resolution
|
||||||
|
DPI = 72.0
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|
|
||||||
|
#------------------------------------------------------------------------
|
||||||
|
#
|
||||||
|
# PSDrawDoc class
|
||||||
|
#
|
||||||
|
#------------------------------------------------------------------------
|
||||||
|
class CairoDocgen(libcairodoc.CairoDoc):
|
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|
"""Render the document into a file using a Cairo surface.
|
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|
"""
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def create_cairo_surface(self, fobj, width_in_points, height_in_points):
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|
# See
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|
# http://cairographics.org/documentation/pycairo/3/reference/surfaces.html#class-pssurface-surface
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# for the arg semantics.
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raise "Missing surface factory override!!!"
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def run(self):
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"""Create the output file.
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The derived class overrides EXT and create_cairo_surface
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"""
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||||||
|
# get paper dimensions
|
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|
paper_width = self.paper.get_size().get_width() * DPI / 2.54
|
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|
paper_height = self.paper.get_size().get_height() * DPI / 2.54
|
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page_width = round(self.paper.get_usable_width() * DPI / 2.54)
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page_height = round(self.paper.get_usable_height() * DPI / 2.54)
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left_margin = self.paper.get_left_margin() * DPI / 2.54
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top_margin = self.paper.get_top_margin() * DPI / 2.54
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|
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# create cairo context and pango layout
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filename = self._backend.filename.encode(sys.getfilesystemencoding())
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|
try:
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|
surface = self.create_cairo_surface(filename, paper_width, paper_height)
|
||||||
|
except IOError,msg:
|
||||||
|
errmsg = "%s\n%s" % (_("Could not create %s") % filename, msg)
|
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|
raise Errors.ReportError(errmsg)
|
||||||
|
except:
|
||||||
|
LOG.warn(sys.exc_info()[0:2])
|
||||||
|
raise Errors.ReportError(_("Could not create %s") % filename)
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|
surface.set_fallback_resolution(300, 300)
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|
cr = pangocairo.CairoContext(cairo.Context(surface))
|
||||||
|
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||||||
|
fontmap = pangocairo.cairo_font_map_get_default()
|
||||||
|
saved_resolution = fontmap.get_resolution()
|
||||||
|
fontmap.set_resolution(DPI)
|
||||||
|
|
||||||
|
pango_context = fontmap.create_context()
|
||||||
|
options = cairo.FontOptions()
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||||||
|
options.set_hint_metrics(cairo.HINT_METRICS_OFF)
|
||||||
|
pangocairo.context_set_font_options(pango_context, options)
|
||||||
|
layout = pango.Layout(pango_context)
|
||||||
|
cr.update_context(pango_context)
|
||||||
|
|
||||||
|
# paginate the document
|
||||||
|
self.paginate_document(layout, page_width, page_height, DPI, DPI)
|
||||||
|
body_pages = self._pages
|
||||||
|
|
||||||
|
# build the table of contents and alphabetical index
|
||||||
|
toc_page = None
|
||||||
|
index_page = None
|
||||||
|
toc = []
|
||||||
|
index = {}
|
||||||
|
for page_nr, page in enumerate(body_pages):
|
||||||
|
if page.has_toc():
|
||||||
|
toc_page = page_nr
|
||||||
|
if page.has_index():
|
||||||
|
index_page = page_nr
|
||||||
|
for mark in page.get_marks():
|
||||||
|
if mark.type == INDEX_TYPE_ALP:
|
||||||
|
if mark.key in index:
|
||||||
|
if page_nr + 1 not in index[mark.key]:
|
||||||
|
index[mark.key].append(page_nr + 1)
|
||||||
|
else:
|
||||||
|
index[mark.key] = [page_nr + 1]
|
||||||
|
elif mark.type == INDEX_TYPE_TOC:
|
||||||
|
toc.append([mark, page_nr + 1])
|
||||||
|
|
||||||
|
# paginate the table of contents
|
||||||
|
rebuild_required = False
|
||||||
|
if toc_page is not None:
|
||||||
|
toc_pages = self.__generate_toc(layout, page_width, page_height,
|
||||||
|
toc)
|
||||||
|
offset = len(toc_pages) - 1
|
||||||
|
if offset > 0:
|
||||||
|
self.__increment_pages(toc, index, toc_page, offset)
|
||||||
|
rebuild_required = True
|
||||||
|
else:
|
||||||
|
toc_pages = []
|
||||||
|
|
||||||
|
# paginate the index
|
||||||
|
if index_page is not None:
|
||||||
|
index_pages = self.__generate_index(layout, page_width, page_height,
|
||||||
|
index)
|
||||||
|
offset = len(index_pages) - 1
|
||||||
|
if offset > 0:
|
||||||
|
self.__increment_pages(toc, index, index_page, offset)
|
||||||
|
rebuild_required = True
|
||||||
|
else:
|
||||||
|
index_pages = []
|
||||||
|
|
||||||
|
# rebuild the table of contents and index if required
|
||||||
|
if rebuild_required:
|
||||||
|
if toc_page is not None:
|
||||||
|
toc_pages = self.__generate_toc(layout, page_width, page_height,
|
||||||
|
toc)
|
||||||
|
if index_page is not None:
|
||||||
|
index_pages = self.__generate_index(layout, page_width,
|
||||||
|
page_height, index)
|
||||||
|
|
||||||
|
# render the pages
|
||||||
|
if toc_page is not None:
|
||||||
|
body_pages = body_pages[:toc_page] + toc_pages + \
|
||||||
|
body_pages[toc_page+1:]
|
||||||
|
if index_page is not None:
|
||||||
|
body_pages = body_pages[:index_page] + index_pages + \
|
||||||
|
body_pages[index_page+1:]
|
||||||
|
self._pages = body_pages
|
||||||
|
for page_nr in range(len(self._pages)):
|
||||||
|
cr.save()
|
||||||
|
cr.translate(left_margin, top_margin)
|
||||||
|
self.draw_page(page_nr, cr, layout,
|
||||||
|
page_width, page_height,
|
||||||
|
DPI, DPI)
|
||||||
|
cr.show_page()
|
||||||
|
cr.restore()
|
||||||
|
|
||||||
|
# close the surface (file)
|
||||||
|
surface.finish()
|
||||||
|
|
||||||
|
# Restore the resolution. On windows, Gramps UI fonts will be smaller
|
||||||
|
# if we don't restore the resolution.
|
||||||
|
fontmap.set_resolution(saved_resolution)
|
||||||
|
|
||||||
|
def __increment_pages(self, toc, index, start_page, offset):
|
||||||
|
"""
|
||||||
|
Increment the page numbers in the table of contents and index.
|
||||||
|
"""
|
||||||
|
for n, value in enumerate(toc):
|
||||||
|
page_nr = toc[n][1]
|
||||||
|
toc[n][1] = page_nr + (offset if page_nr > start_page else 0)
|
||||||
|
for key, value in index.iteritems():
|
||||||
|
index[key] = [page_nr + (offset if page_nr > start_page else 0)
|
||||||
|
for page_nr in value]
|
||||||
|
|
||||||
|
def __generate_toc(self, layout, page_width, page_height, toc):
|
||||||
|
"""
|
||||||
|
Generate the table of contents.
|
||||||
|
"""
|
||||||
|
self._doc = libcairodoc.GtkDocDocument()
|
||||||
|
self._active_element = self._doc
|
||||||
|
self._pages = []
|
||||||
|
write_toc(toc, self)
|
||||||
|
self.paginate_document(layout, page_width, page_height, DPI, DPI)
|
||||||
|
return self._pages
|
||||||
|
|
||||||
|
def __generate_index(self, layout, page_width, page_height, index):
|
||||||
|
"""
|
||||||
|
Generate the index.
|
||||||
|
"""
|
||||||
|
self._doc = libcairodoc.GtkDocDocument()
|
||||||
|
self._active_element = self._doc
|
||||||
|
self._pages = []
|
||||||
|
write_index(index, self)
|
||||||
|
self.paginate_document(layout, page_width, page_height, DPI, DPI)
|
||||||
|
return self._pages
|
||||||
|
|
||||||
|
def write_toc(toc, doc):
|
||||||
|
"""
|
||||||
|
Write the table of contents.
|
||||||
|
"""
|
||||||
|
if not toc:
|
||||||
|
return
|
||||||
|
|
||||||
|
doc.start_paragraph('TOC-Title')
|
||||||
|
doc.write_text(_('Contents'))
|
||||||
|
doc.end_paragraph()
|
||||||
|
|
||||||
|
doc.start_table('toc', 'TOC-Table')
|
||||||
|
for mark, page_nr in toc:
|
||||||
|
doc.start_row()
|
||||||
|
doc.start_cell('TOC-Cell')
|
||||||
|
if mark.level == 1:
|
||||||
|
style_name = "TOC-Heading1"
|
||||||
|
elif mark.level == 2:
|
||||||
|
style_name = "TOC-Heading2"
|
||||||
|
else:
|
||||||
|
style_name = "TOC-Heading3"
|
||||||
|
doc.start_paragraph(style_name)
|
||||||
|
doc.write_text(mark.key)
|
||||||
|
doc.end_paragraph()
|
||||||
|
doc.end_cell()
|
||||||
|
doc.start_cell('TOC-Cell')
|
||||||
|
doc.start_paragraph(style_name)
|
||||||
|
doc.write_text(str(page_nr))
|
||||||
|
doc.end_paragraph()
|
||||||
|
doc.end_cell()
|
||||||
|
doc.end_row()
|
||||||
|
doc.end_table()
|
||||||
|
|
||||||
|
def write_index(index, doc):
|
||||||
|
"""
|
||||||
|
Write the alphabetical index.
|
||||||
|
"""
|
||||||
|
if not index:
|
||||||
|
return
|
||||||
|
|
||||||
|
doc.start_paragraph('IDX-Title')
|
||||||
|
doc.write_text(_('Index'))
|
||||||
|
doc.end_paragraph()
|
||||||
|
|
||||||
|
doc.start_table('index', 'IDX-Table')
|
||||||
|
for key in sorted(index.iterkeys()):
|
||||||
|
doc.start_row()
|
||||||
|
doc.start_cell('IDX-Cell')
|
||||||
|
doc.start_paragraph('IDX-Entry')
|
||||||
|
doc.write_text(key)
|
||||||
|
doc.end_paragraph()
|
||||||
|
doc.end_cell()
|
||||||
|
doc.start_cell('IDX-Cell')
|
||||||
|
doc.start_paragraph('IDX-Entry')
|
||||||
|
pages = [str(page_nr) for page_nr in index[key]]
|
||||||
|
doc.write_text(', '.join(pages))
|
||||||
|
doc.end_paragraph()
|
||||||
|
doc.end_cell()
|
||||||
|
doc.end_row()
|
||||||
|
doc.end_table()
|
||||||
Reference in New Issue
Block a user