Method _checker

src/__init__.py:9060–9079

Any widget type checks.

(self)

        return

    def _checker(self):
        """Any widget type checks.
        """
        if self.field_type not in range(1, 8):
            raise ValueError("bad field type")

        # if setting a radio button to ON, first set Off all buttons
        # in the group - this is not done by MuPDF:
        if self.field_type == mupdf.PDF_WIDGET_TYPE_RADIOBUTTON and self.field_value not in (False, "Off") and hasattr(self, "parent"):
            # so we are about setting this button to ON/True
            # check other buttons in same group and set them to 'Off'
            doc = self.parent.parent
            kids_type, kids_value = doc.xref_get_key(self.xref, "Parent/Kids")
            if kids_type == "array":
                xrefs = tuple(map(int, kids_value[1:-1].replace("0 R","").split()))
                for xref in xrefs:
                    if xref != self.xref:
                        doc.xref_set_key(xref, "AS", "/Off")
        # the calling method will now set the intended button to on and
        # will find everything prepared for correct functioning.

    def _parse_da(self):
        """Extract font name, size and color from default appearance string (/DA object).