Function get_text_length

src/__init__.py:22491–22530

Calculate length of a string for a built-in font. Args: fontname: name of the font. fontsize: font size points. encoding: encoding to use, 0=Latin (default), 1=Greek, 2=Cyrillic. Returns: (float) length of text.

(text: str, fontname: str ="helv", fontsize: float =11, encoding: int =0)

def get_text_length(text: str, fontname: str ="helv", fontsize: float =11, encoding: int =0) -> float:
    """Calculate length of a string for a built-in font.

    Args:
        fontname: name of the font.
        fontsize: font size points.
        encoding: encoding to use, 0=Latin (default), 1=Greek, 2=Cyrillic.
    Returns:
        (float) length of text.
    """
    fontname = fontname.lower()
    basename = Base14_fontdict.get(fontname, None)

    glyphs = None
    if basename == "Symbol":
        glyphs = symbol_glyphs
    if basename == "ZapfDingbats":
        glyphs = zapf_glyphs
    if glyphs is not None:
        w = sum([glyphs[ord(c)][1] if ord(c) < 256 else glyphs[183][1] for c in text])
        return w * fontsize

    if fontname in Base14_fontdict.keys():
        return util_measure_string(
            text, Base14_fontdict[fontname], fontsize, encoding
        )

    if fontname in (
        "china-t",
        "china-s",
        "china-ts",
        "china-ss",
        "japan",
        "japan-s",
        "korea",
        "korea-s",
    ):
        return len(text) * fontsize

    raise ValueError(f"Font '{fontname}' is unsupported")


def image_profile(img: ByteString) -> dict: