118 lines
5.0 KiB
Python
118 lines
5.0 KiB
Python
# -*- coding: utf-8 -*-
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##############################################################################
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#
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# OpenERP, Open Source Management Solution
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# Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
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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 Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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from reportlab.pdfbase import ttfonts
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from openerp.osv import fields, osv
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from openerp.report.render.rml2pdf import customfonts
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import logging
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"""This module allows the mapping of some system-available TTF fonts to
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the reportlab engine.
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This file could be customized per distro (although most Linux/Unix ones)
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should have the same filenames, only need the code below).
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Due to an awful configuration that ships with reportlab at many Linux
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and Ubuntu distros, we have to override the search path, too.
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"""
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_logger = logging.getLogger(__name__)
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class res_font(osv.Model):
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_name = "res.font"
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_description = 'Fonts available'
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_order = 'name,family,id'
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_columns = {
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'family': fields.char("Font family", required=True),
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'name': fields.char("Font Name", required=True),
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'path': fields.char("Path", required=True),
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'mode': fields.char("Mode", required=True),
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}
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_sql_constraints = [
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('name_font_uniq', 'unique(family, name)', 'You can not register two fonts with the same name'),
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]
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def _base_populate_font(self, cr, uid, context=None):
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if not self.search(cr, uid, [('path', '=', '/dev/null')], context=context):
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# populate db with basic pdf fonts
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for family, name, path, mode in customfonts.BasePDFFonts:
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self.create(cr, uid, {
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'family': family, 'name': name,
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'path': path, 'mode': mode,
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}, context=context)
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return True
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def font_scan(self, cr, uid, lazy=False, context=None):
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if lazy:
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# lazy loading, scan only if no fonts in db
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found_fonts_ids = self.search(cr, uid, [('path', '!=', '/dev/null')], context=context)
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if not found_fonts_ids:
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# no scan yet or no font found on the system, scan the filesystem
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self._discover_fonts(cr, uid, context=context)
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self._register_fonts(cr, uid, context=context)
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else:
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if len(customfonts.CustomTTFonts) == 0:
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# CustomTTFonts list is empty
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for font in self.browse(cr, uid, found_fonts_ids, context=context):
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customfonts.CustomTTFonts.append((font.family, font.name, font.path, font.mode))
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else:
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self._discover_fonts(cr, uid, context=context)
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self._register_fonts(cr, uid, context=context)
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return True
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def _discover_fonts(self, cr, uid, context=None):
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"""Scan fonts on the file system, add them to the list of known fonts
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and create font object for the new ones"""
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customfonts.CustomTTFonts = []
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found_fonts = {}
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for font_path in customfonts.list_all_sysfonts():
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try:
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font = ttfonts.TTFontFile(font_path)
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_logger.debug("Found font %s at %s", font.name, font_path)
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if not found_fonts.get(font.familyName):
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found_fonts[font.familyName] = {'name': font.familyName}
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mode = font.styleName.lower().replace(" ", "")
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customfonts.CustomTTFonts.append((font.familyName, font.name, font_path, mode))
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except ttfonts.TTFError:
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_logger.warning("Could not register Font %s", font_path)
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def _register_fonts(self, cr, uid, context=None):
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# add new custom fonts
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for family, name, path, mode in customfonts.CustomTTFonts:
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if not self.search(cr, uid, [('family', '=', family), ('name', '=', name)], context=context):
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self.create(cr, uid, {
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'family': family, 'name': name,
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'path': path, 'mode': mode,
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}, context=context)
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# remove fonts not present on disk
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existing_font_names = [name for (family, name, path, mode) in customfonts.CustomTTFonts]
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inexistant_fonts = self.search(cr, uid, [('name', 'not in', existing_font_names)], context=context)
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if inexistant_fonts:
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return self.unlink(cr, uid, inexistant_fonts, context=context)
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return True
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