Method get_char_widths

src/__init__.py:4742–4841

Get list of glyph information of a font. Notes: Must be provided by its XREF number. If we already dealt with the font, it will be recorded in doc.FontInfos. Otherwise we insert an entry there. Finally we return the glyphs for the font. This i

(
            doc: 'Document',
            xref: int,
            limit: int = 256,
            idx: int = 0,
            fontdict: OptDict = None,
            )

        self._reset_page_refs()

    def get_char_widths(
            doc: 'Document',
            xref: int,
            limit: int = 256,
            idx: int = 0,
            fontdict: OptDict = None,
            ) -> list:
        """Get list of glyph information of a font.

        Notes:
            Must be provided by its XREF number. If we already dealt with the
            font, it will be recorded in doc.FontInfos. Otherwise we insert an
            entry there.
            Finally we return the glyphs for the font. This is a list of
            (glyph, width) where glyph is an integer controlling the char
            appearance, and width is a float controlling the char's spacing:
            width * fontsize is the actual space.
            For 'simple' fonts, glyph == ord(char) will usually be true.
            Exceptions are 'Symbol' and 'ZapfDingbats'. We are providing data for these directly here.
        """
        fontinfo = CheckFontInfo(doc, xref)
        if fontinfo is None:  # not recorded yet: create it
            if fontdict is None:
                name, ext, stype, asc, dsc = utils._get_font_properties(doc, xref)
                fontdict = {
                    "name": name,
                    "type": stype,
                    "ext": ext,
                    "ascender": asc,
                    "descender": dsc,
                }
            else:
                name = fontdict["name"]
                ext = fontdict["ext"]
                stype = fontdict["type"]
                ordering = fontdict["ordering"]
                simple = fontdict["simple"]

            if ext == "":
                raise ValueError("xref is not a font")

            # check for 'simple' fonts
            if stype in ("Type1", "MMType1", "TrueType"):
                simple = True
            else:
                simple = False

            # check for CJK fonts
            if name in ("Fangti", "Ming"):
                ordering = 0
            elif name in ("Heiti", "Song"):
                ordering = 1
            elif name in ("Gothic", "Mincho"):
                ordering = 2
            elif name in ("Dotum", "Batang"):
                ordering = 3
            else:
                ordering = -1