# Source code for tecplot.text.textbox

    from builtins import super

    from ..tecutil import sv
    from .. import constant, session

    #
    # Note: The TextBox class is similar to the annotation.TextBox class, except
    # that annotation.TextBox is specific to text annotations and uses the
    # TecUtilText API to get/set properties.
    #
    # The TextBox class below uses style to get/set properties.
    #
    # Therefore, this class must be separate from annotation.TextBox
    #

    class TextBox(session.Style):
        """Rectangular frame around a text element.

        .. warning::

            `text.TextBox` objects cannot be created directly. They are returned by
            various other read-only properties.

        """
        def __init__(self, parent):
            self.parent = parent
            super().__init__(parent._sv, sv.BOX, **parent._kw)

        @property
        def box_type(self):
            """`constant.TextBox`: Type of box surrounding the text.

            Example usage::

                >>> plot = frame.plot()
                >>> plot.legend.box.box_type = constant.TextBox.None_
            """
            return self._get_style(constant.TextBox, sv.BOXTYPE)

        @box_type.setter
        def box_type(self, value):
            self._set_style(constant.TextBox(value), sv.BOXTYPE)

        @property
        def color(self):
            """`Color`: Color of the box surrounding the text.

            Example usage::

                >>> plot = frame.plot()
                >>> plot.legend.box.color = Color.Blue
            """
            return self._get_style(constant.Color, sv.COLOR)

        @color.setter
        def color(self, value):
            self._set_style(constant.Color(value), sv.COLOR)

        @property
        def fill_color(self):
            """`Color`: Fill color of the box surrounding the text.

            Example usage::

                >>> plot = frame.plot()
                >>> plot.legend.box.fill_color = Color.Blue
            """
            return self._get_style(constant.Color, sv.FILLCOLOR)

        @fill_color.setter
        def fill_color(self, value):
            self._set_style(constant.Color(value), sv.FILLCOLOR)

        @property
        def line_thickness(self):
            """`float`: Line thickness of the box surrounding the text.

            Example usage::

                >>> plot = frame.plot()
                >>> plot.legend.box.line_thickness = 0.2
            """
            return self._get_style(float, sv.LINETHICKNESS)

        @line_thickness.setter
        def line_thickness(self, value):
            self._set_style(float(value), sv.LINETHICKNESS)

        @property
        def margin(self):
            """`float`: Margin of the box surrounding the text.

            This property is the margin between the text inside the text box
            and the box as a percentage of frame height.

            Example usage::

                >>> plot = frame.plot()
                >>> plot.legend.box.margin = 0.3
            """
            return self._get_style(float, sv.MARGIN)

        @margin.setter
        def margin(self, value):
            self._set_style(float(value), sv.MARGIN)