Python QFontDatabase.addApplicationFontFromData方法代码示例

# 需要导入模块: from PyQt4.Qt import QFontDatabase [as 别名]
# 或者: from PyQt4.Qt.QFontDatabase import addApplicationFontFromData [as 别名]
 def read_font_fule(self, basedir, css):
     from PyQt4.Qt import QFontDatabase
     import cssutils
     cssutils.log.setLevel(logging.ERROR)
     try:
         sheet = cssutils.parseString(css, validate=False)
     except:
         return
     for rule in sheet.cssRules:
         try:
             s = rule.style
             src = s.getProperty('src').propertyValue[0].uri
             font_family = s.getProperty('font-family').propertyValue[0].value
         except:
             continue
         if not src or not font_family:
             continue
         font_file = os.path.normcase(os.path.abspath(os.path.join(basedir,
             src)))
         if font_file not in self.added_fonts:
             self.added_fonts.add(font_file)
             if os.path.exists(font_file):
                 with open(font_file, 'rb') as f:
                     idx = QFontDatabase.addApplicationFontFromData(f.read())
                 if idx > -1:
                     family = map(unicode,
                         QFontDatabase.applicationFontFamilies(idx)).next()
                     self.log('Extracted embedded font:', family, 'from',
                             os.path.basename(font_file))
                     if (family and family != font_family and
                             family not in self.replace_map):
                         self.log('Replacing font family value:',
                                 font_family, 'with', family)
                         self.replace_map[font_family.encode('utf-8')] = \
                                 family.encode('utf-8')

# 需要导入模块: from PyQt4.Qt import QFontDatabase [as 别名]
# 或者: from PyQt4.Qt.QFontDatabase import addApplicationFontFromData [as 别名]
 def add_font(self, data):
     existing = None
     for font_id, entry in self.cache.iteritems():
         if entry.size == len(data) and entry.hash == hash(data):
             existing = entry
             break
     if existing is None:
         font_id = QFontDatabase.addApplicationFontFromData(data)
         if font_id > -1:
             families = frozenset(map(lambda x:icu_lower(unicode(x)), QFontDatabase.applicationFontFamilies(font_id)))
             self.cache[font_id] = self.entry(len(data), hash(data), families)

# 需要导入模块: from PyQt4.Qt import QFontDatabase [as 别名]
# 或者: from PyQt4.Qt.QFontDatabase import addApplicationFontFromData [as 别名]
def load_builtin_fonts():
    global _rating_font
    # Load the builtin fonts and any fonts added to calibre by the user to
    # Qt
    for ff in glob.glob(P('fonts/liberation/*.?tf')) + \
            [P('fonts/calibreSymbols.otf')] + \
            glob.glob(os.path.join(config_dir, 'fonts', '*.?tf')):
        if ff.rpartition('.')[-1].lower() in {'ttf', 'otf'}:
            with open(ff, 'rb') as s:
                # Windows requires font files to be executable for them to be
                # loaded successfully, so we use the in memory loader
                fid = QFontDatabase.addApplicationFontFromData(s.read())
                if fid > -1:
                    fam = QFontDatabase.applicationFontFamilies(fid)
                    fam = set(map(unicode, fam))
                    if u'calibre Symbols' in fam:
                        _rating_font = u'calibre Symbols'

# 需要导入模块: from PyQt4.Qt import QFontDatabase [as 别名]
# 或者: from PyQt4.Qt.QFontDatabase import addApplicationFontFromData [as 别名]
def load_builtin_fonts():
    global _rating_font
    # Load the builtin fonts and any fonts added to calibre by the user to
    # Qt
    for ff in (
        glob.glob(P("fonts/liberation/*.?tf"))
        + [P("fonts/calibreSymbols.otf")]
        + glob.glob(os.path.join(config_dir, "fonts", "*.?tf"))
    ):
        if ff.rpartition(".")[-1].lower() in {"ttf", "otf"}:
            with open(ff, "rb") as s:
                # Windows requires font files to be executable for them to be
                # loaded successfully, so we use the in memory loader
                fid = QFontDatabase.addApplicationFontFromData(s.read())
                if fid > -1:
                    fam = QFontDatabase.applicationFontFamilies(fid)
                    fam = set(map(unicode, fam))
                    if u"calibre Symbols" in fam:
                        _rating_font = u"calibre Symbols"

# 需要导入模块: from PyQt4.Qt import QFontDatabase [as 别名]
# 或者: from PyQt4.Qt.QFontDatabase import addApplicationFontFromData [as 别名]
    def handle_embedded_fonts(self):
        '''
        Because of QtWebKit's inability to handle embedded fonts correctly, we
        remove the embedded fonts and make them available system wide instead.
        If you ever move to Qt WebKit 2.3+ then this will be unnecessary.
        '''
        from calibre.ebooks.oeb.base import urlnormalize
        from calibre.utils.fonts.utils import remove_embed_restriction
        from PyQt4.Qt import QFontDatabase, QByteArray, QRawFont, QFont

        # First find all @font-face rules and remove them, adding the embedded
        # fonts to Qt
        family_map = {}
        for item in list(self.oeb.manifest):
            if not hasattr(item.data, 'cssRules'): continue
            remove = set()
            for i, rule in enumerate(item.data.cssRules):
                if rule.type == rule.FONT_FACE_RULE:
                    remove.add(i)
                    try:
                        s = rule.style
                        src = s.getProperty('src').propertyValue[0].uri
                        font_family = s.getProperty('font-family').propertyValue[0].value
                    except:
                        continue
                    path = item.abshref(src)
                    ff = self.oeb.manifest.hrefs.get(urlnormalize(path), None)
                    if ff is None:
                        continue

                    raw = ff.data
                    self.oeb.manifest.remove(ff)
                    try:
                        raw = remove_embed_restriction(raw)
                    except:
                        continue
                    fid = QFontDatabase.addApplicationFontFromData(QByteArray(raw))
                    family_name = None
                    if fid > -1:
                        try:
                            family_name = unicode(QFontDatabase.applicationFontFamilies(fid)[0])
                        except (IndexError, KeyError):
                            pass
                    if family_name:
                        family_map[icu_lower(font_family)] = family_name

            for i in sorted(remove, reverse=True):
                item.data.cssRules.pop(i)

        # Now map the font family name specified in the css to the actual
        # family name of the embedded font (they may be different in general).
        font_warnings = set()
        for item in self.oeb.manifest:
            if not hasattr(item.data, 'cssRules'): continue
            for i, rule in enumerate(item.data.cssRules):
                if rule.type != rule.STYLE_RULE: continue
                ff = rule.style.getProperty('font-family')
                if ff is None: continue
                val = ff.propertyValue
                for i in xrange(val.length):
                    try:
                        k = icu_lower(val[i].value)
                    except (AttributeError, TypeError):
                        val[i].value = k = 'times'
                    if k in family_map:
                        val[i].value = family_map[k]
                if iswindows:
                    # On windows, Qt uses GDI which does not support OpenType
                    # (CFF) fonts, so we need to nuke references to OpenType
                    # fonts. Note that you could compile QT with configure
                    # -directwrite, but that requires atleast Vista SP2
                    for i in xrange(val.length):
                        family = val[i].value
                        if family:
                            f = QRawFont.fromFont(QFont(family))
                            if len(f.fontTable('head')) == 0:
                                if family not in font_warnings:
                                    self.log.warn('Ignoring unsupported font: %s'
                                                %family)
                                    font_warnings.add(family)
                                # Either a bitmap or (more likely) a CFF font
                                val[i].value = 'times'

# 需要导入模块: from PyQt4.Qt import QFontDatabase [as 别名]
# 或者: from PyQt4.Qt.QFontDatabase import addApplicationFontFromData [as 别名]
    def handle_embedded_fonts(self):
        '''
        Because of QtWebKit's inability to handle embedded fonts correctly, we
        remove the embedded fonts and make them available system wide instead.
        If you ever move to Qt WebKit 2.3+ then this will be unnecessary.
        '''
        from calibre.ebooks.oeb.base import urlnormalize
        from calibre.gui2 import must_use_qt
        from calibre.utils.fonts.utils import get_font_names, remove_embed_restriction
        from PyQt4.Qt import QFontDatabase, QByteArray

        # First find all @font-face rules and remove them, adding the embedded
        # fonts to Qt
        family_map = {}
        for item in list(self.oeb.manifest):
            if not hasattr(item.data, 'cssRules'): continue
            remove = set()
            for i, rule in enumerate(item.data.cssRules):
                if rule.type == rule.FONT_FACE_RULE:
                    remove.add(i)
                    try:
                        s = rule.style
                        src = s.getProperty('src').propertyValue[0].uri
                        font_family = s.getProperty('font-family').propertyValue[0].value
                    except:
                        continue
                    path = item.abshref(src)
                    ff = self.oeb.manifest.hrefs.get(urlnormalize(path), None)
                    if ff is None:
                        continue

                    raw = ff.data
                    self.oeb.manifest.remove(ff)
                    try:
                        raw = remove_embed_restriction(raw)
                    except:
                        continue
                    must_use_qt()
                    QFontDatabase.addApplicationFontFromData(QByteArray(raw))
                    try:
                        family_name = get_font_names(raw)[0]
                    except:
                        family_name = None
                    if family_name:
                        family_map[icu_lower(font_family)] = family_name

            for i in sorted(remove, reverse=True):
                item.data.cssRules.pop(i)

        # Now map the font family name specified in the css to the actual
        # family name of the embedded font (they may be different in general).
        for item in self.oeb.manifest:
            if not hasattr(item.data, 'cssRules'): continue
            for i, rule in enumerate(item.data.cssRules):
                if rule.type != rule.STYLE_RULE: continue
                ff = rule.style.getProperty('font-family')
                if ff is None: continue
                val = ff.propertyValue
                for i in xrange(val.length):
                    k = icu_lower(val[i].value)
                    if k in family_map:
                        val[i].value = family_map[k]