178 lines
7.4 KiB
Python
178 lines
7.4 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 P. Christeas, Tiny SPRL (<http://tiny.be>).
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# Copyright (C) 2010-2013 OpenERP SA. (http://www.openerp.com)
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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 import rl_config
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from reportlab.lib import fonts
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from reportlab.pdfbase import pdfmetrics, ttfonts
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import logging
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import os,platform
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# .apidoc title: TTF Font Table
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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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_fonts_cache = {'registered_fonts': [], 'total_system_fonts': 0}
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_logger = logging.getLogger(__name__)
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# Basic fonts familly included in PDF standart, will always be in the font list
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BasePDFFonts = [
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('Helvetica', 'Helvetica'),
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('Times', 'Times'),
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('Courier', 'Courier'),
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]
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# List of fonts found on the disk
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CustomTTFonts = []
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# Search path for TTF files, in addition of rl_config.TTFSearchPath
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TTFSearchPath = [
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'/usr/share/fonts/truetype', # SuSE
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'/usr/share/fonts/dejavu', '/usr/share/fonts/liberation', # Fedora, RHEL
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'/usr/share/fonts/truetype/*','/usr/local/share/fonts' # Ubuntu,
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'/usr/share/fonts/TTF/*', # at Mandriva/Mageia
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'/usr/share/fonts/TTF', # Arch Linux
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'/usr/lib/openoffice/share/fonts/truetype/',
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'~/.fonts',
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'~/.local/share/fonts',
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# mac os X - from
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# http://developer.apple.com/technotes/tn/tn2024.html
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'~/Library/Fonts',
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'/Library/Fonts',
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'/Network/Library/Fonts',
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'/System/Library/Fonts',
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# windows
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'c:/winnt/fonts',
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'c:/windows/fonts'
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]
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def all_sysfonts_list():
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"""
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This function returns list of font directories of system.
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"""
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filepath = []
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# Perform the search for font files ourselves, as reportlab's
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# TTFOpenFile is not very good at it.
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searchpath = list(set(TTFSearchPath + rl_config.TTFSearchPath))
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for dirname in searchpath:
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dirname = os.path.expanduser(dirname)
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if os.path.exists(dirname):
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for filename in [x for x in os.listdir(dirname) if x.lower().endswith('.ttf')]:
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filepath.append(os.path.join(dirname, filename))
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return filepath
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def init_new_font(familyName, name, font_dir):
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return {
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'regular':(familyName, name, font_dir, 'regular'),
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'italic':(),
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'bold':(familyName, name, font_dir, 'bold'),
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'bolditalic':(),
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}
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def RegisterCustomFonts():
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"""
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This function prepares a list for all system fonts to be registered
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in reportlab and returns the updated list with new fonts.
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"""
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global CustomTTFonts
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all_system_fonts = all_sysfonts_list()
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if len(all_system_fonts) != _fonts_cache['total_system_fonts']:
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font_modes, last_family, registered_font_list, _fonts_cache['registered_fonts'] = {}, "", [], list(BasePDFFonts)
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#Prepares a list of registered fonts. Remove such fonts those don't have cmap for Unicode.
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for dirname in all_system_fonts:
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try:
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font_info = ttfonts.TTFontFile(dirname)
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if font_info.styleName in ('Regular','Normal','Book','Medium', 'Roman'):
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_fonts_cache['registered_fonts'].append((font_info.name, font_info.fullName))
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registered_font_list.append((font_info.familyName, font_info.name, dirname, font_info.styleName.lower().replace(" ", "")))
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_logger.debug("Found font %s at %s", font_info.name, dirname)
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except:
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_logger.warning("Could not register Font %s", dirname)
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#Prepare font list for mapping.Each font family requires four type of modes(regular,bold,italic,bolditalic).
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#If all modes are not found, dummy entries are made for remaining modes.
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for familyName, name, font_dir, mode in sorted(registered_font_list):
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if not last_family or not font_modes:
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last_family = familyName
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font_modes = init_new_font(familyName, name, font_dir)
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if last_family != familyName:
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# new font familly, adding previous to the list of fonts
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if not font_modes['italic']:
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font_modes['italic'] = font_modes['regular'][:3]+('italic',)
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if not font_modes['bolditalic']:
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font_modes['bolditalic'] = font_modes['bold'][:3]+('bolditalic',)
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CustomTTFonts.extend(font_modes.values())
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font_modes = init_new_font(familyName, name, font_dir)
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if (mode== 'normal') or (mode == 'regular') or (mode == 'medium') or (mode == 'book') or (mode == 'roman'):
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font_modes['regular'] = (familyName, name, font_dir, 'regular')
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elif (mode == 'italic') or (mode == 'oblique'):
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font_modes['italic'] = (familyName, name, font_dir, 'italic')
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elif mode == 'bold':
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font_modes['bold'] = (familyName, name, font_dir, 'bold')
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elif (mode == 'bolditalic') or (mode == 'boldoblique'):
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font_modes['bolditalic'] = (familyName, name, font_dir, 'bolditalic')
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last_family = familyName
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# add the last one
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if font_modes:
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if not font_modes['italic']:
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font_modes['italic'] = font_modes['regular'][:3]+('italic',)
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if not font_modes['bolditalic']:
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font_modes['bolditalic'] = font_modes['bold'][:3]+('bolditalic',)
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CustomTTFonts.extend(font_modes.values())
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_fonts_cache['total_system_fonts'] = len(all_system_fonts)
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# remove duplicates
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CustomTTFonts = sorted(list(set(CustomTTFonts)))
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_fonts_cache['registered_fonts'] = sorted(list(set(_fonts_cache['registered_fonts'])))
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return _fonts_cache['registered_fonts']
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def SetCustomFonts(rmldoc):
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""" Map some font names to the corresponding TTF fonts
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The ttf font may not even have the same name, as in
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Times -> Liberation Serif.
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This function is called once per report, so it should
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avoid system-wide processing (cache it, instead).
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"""
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if not _fonts_cache['registered_fonts']:
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RegisterCustomFonts()
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for name, font, filename, mode in CustomTTFonts:
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if os.path.isabs(filename) and os.path.exists(filename):
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rmldoc.setTTFontMapping(name, font, filename, mode)
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return True
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# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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