# Source code for tecplot.annotation.text

    import collections

    from ..tecutil import _tecutil
    from .. import constant, tecutil
    from ..exception import TecplotSystemError

    @tecutil.lock_attributes
    class TextFont(object):
        """Typeface and font settings for a `Text` object."""
        def __init__(self, text):
            self.text = text
            self.uid = self.text.uid
            self.frame = self.text.frame

        @property
        def typeface(self):
            """`str`: The font family used by the `Text` object.

            For consistency across various platforms, |Tecplot 360| guarantees that
            the following standard typeface names are available:

                * "Helvetica"
                * "Times"
                * "Courier"
                * "Greek"
                * "Math"
                * "User Defined"

            Other typefaces may or may not be available depending on the TrueType
            fonts available. If the typeface or style is not available, a suitable
            replacement will be selected. This example shows how to set the
            typeface of a `Text` object to 'Times'::

                >>> text = frame.add_text('abc')
                >>> text.font.typeface = 'Times'
            """
            with self.frame.activated():
                return _tecutil.TextGetTypefaceFamily(self.uid)

        @typeface.setter
        @tecutil.lock()
        def typeface(self, value):
            with self.frame.activated():
                _tecutil.TextSetTypeface(self.uid, str(value), self.bold,
                                         self.italic)

        @property
        def bold(self):
            """`bool`: Use bold typeface in the `Text` object.

            Example showing how to set the bold property of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.font.bold = True
            """
            with self.frame.activated():
                return _tecutil.TextGetTypefaceIsBold(self.uid)

        @bold.setter
        @tecutil.lock()
        def bold(self, value):
            with self.frame.activated():
                _tecutil.TextSetTypeface(self.uid, self.typeface, bool(value),
                                         self.italic)

        @property
        def italic(self):
            """`bool`: Use italic typeface of the `Text` object.

            Example showing how to set the italic property of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.font.italic = True
            """
            with self.frame.activated():
                return _tecutil.TextGetTypefaceIsItalic(self.uid)

        @italic.setter
        @tecutil.lock()
        def italic(self, value):
            with self.frame.activated():
                _tecutil.TextSetTypeface(self.uid, self.typeface, self.bold,
                                         bool(value))

        @property
        def size(self):
            """`int`: The text size in the currently defined text size units.

            Example showing how to set the text size of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.font.size_units = tecplot.constant.Units.Point
                >>> text.font.size = 14
            """
            with self.frame.activated():
                return _tecutil.TextGetHeight(self.uid)

        @size.setter
        @tecutil.lock()
        def size(self, value):
            with self.frame.activated():
                _tecutil.TextSetHeight(self.uid, float(value))

        @property
        def size_units(self):
            """`Units`: Units of the text character height.

            `Units` may be one of the following:

                * `Units.Point`: Specify character height in points.
                * `Units.Frame`: Specify character height as a percentage of frame
                    height
                * `Units.Grid`: Specify character height in grid units.

            (default = `Units.Point`)

            .. note::
                * One point is 1/72nd of an inch.
                * `Units.Grid` is available only if position_coordinate_system is
                    `CoordSys.Grid`
                * The position coordinate system will be changed to `CoordSys.Grid`
                    if size units is set to `Units.Grid`

            Example showing how to set the units of the character height for a
            `Text` object::

                >>> from tecplot.constant import CoordSys
                >>> text = frame.add_text("abc")
                >>> text.position_coordinate_system = CoordSys.Grid
                >>> text.font.size_units = Units.Point
            """
            with self.frame.activated():
                return constant.Units(_tecutil.TextGetSizeUnits(self.uid))

        @size_units.setter
        @tecutil.lock()
        def size_units(self, value):
            with self.frame.activated():
                size = self.size
                size_units = constant.Units(value)
                if size_units == constant.Units.Grid:
                    # if units == grid, then coord-sys must be grid
                    coord_sys = constant.CoordSys.Grid
                else:
                    coord_sys = self.text.position_coordinate_system
                _tecutil.TextSetCoordSysAndUnits(self.uid, coord_sys.value,
                                                 size_units.value)
                self.size = size

    @tecutil.lock_attributes
    class TextBox(object):
        """The box surrounding a `Text` object."""
        def __init__(self, text):
            self.text = text
            self.uid = self.text.uid
            self.frame = self.text.frame

        @property
        def line_thickness(self):
            """`float`: Border line thickness.

            Must be  greater than 0, default: ``0.1``. Example showing how to set
            the line thickness of the `text box <annotation.TextBox>`::

                >>> text = frame.add_text("abc")
                >>> text.box.line_thickness = 0.5
            """
            with self.frame.activated():
                return _tecutil.TextBoxGetLineThickness(self.uid)

        @line_thickness.setter
        @tecutil.lock()
        def line_thickness(self, value):
            with self.frame.activated():
                _tecutil.TextBoxSetLineThickness(self.uid, float(value))

        @property
        def margin(self):
            """`float`: Margin between the text and the surrounding border.

            Specify the margin as a percentage of the text character height. Margin
            must be greater than or equal to 0.0, and may be greater than 100.
            (default = 20.0)

            Example showing how to set the margin of the `text box <TextBox>` for a
            `Text` object::

                >>> text = frame.add_text("abc")
                >>> text.box.type = tecplot.constant.TextBox.Filled
                >>> text.box.margin = 0.5
            """
            with self.frame.activated():
                return _tecutil.TextBoxGetMargin(self.uid)

        @margin.setter
        @tecutil.lock()
        def margin(self, margin):
            with self.frame.activated():
                _tecutil.TextBoxSetMargin(self.uid, float(margin))

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

            Example showing how to set the fill color of the `text box <TextBox>`
            for a `Text` object::

                >>> text = frame.add_text("abc")
                >>> text.box.type = TextBox.Filled
                >>> text.box.fill_color = tecplot.constant.Color.Blue
            """
            return constant.Color(_tecutil.TextBoxGetFillColor(self.uid))

        @fill_color.setter
        @tecutil.lock()
        def fill_color(self, color):
            with self.frame.activated():
                _tecutil.TextBoxSetFillColor(self.uid, constant.Color(color).value)

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

            Default: `Color.Black`. Example showing how to set the outline color of
            the `text box <TextBox>` for a `Text` object::

                >>> from tecplot.constant import Color, TextBox
                >>> text = frame.add_text("abc")
                >>> text.box.type = TextBox.Filled
                >>> text.box.color = Color.Blue
            """
            return constant.Color(_tecutil.TextBoxGetColor(self.uid))

        @color.setter
        @tecutil.lock()
        def color(self, color):
            with self.frame.activated():
                _tecutil.TextBoxSetColor(self.uid, constant.Color(color).value)

        _Pos = collections.namedtuple('TextBoxPos', 'x1 y1 x2 y2 x3 y3 x4 y4')

        @property
        def corner_locations(self):
            """`tuple`: Position of the four corners of the `text box <TextBox>`.

            **Note:** This property is read-only.

            The tuple consists of 8 `floats <float>`:

                * x1: X-Coordinate for bottom left corner
                * y1: Y-Coordinate for bottom left corner
                * x2: X-Coordinate for bottom right corner
                * y2: Y-Coordinate for bottom right corner
                * x3: X-Coordinate for upper right corner
                * y3: Y-Coordinate for upper right corner
                * x4: X-Coordinate for upper left corner
                * y4: Y-Coordinate for upper left corner

            There is no default, position will vary with text box properties.
            Example showing how to query position of the `text box <TextBox>` for a
            `Text` object. The values ``x1, ..., y4``` contain the corners
            of the text box::

                >>> text = frame.add_text("abc")
                >>> text.box.type = tecplot.constant.TextBox.Filled
                >>> x1,y1,x2,y2,x3,y3,x4,y4 = text.box.corner_locations
            """
            with self.frame.activated():
                return TextBox._Pos(*_tecutil.TextBoxGetPosition(self.uid))

        @property
        def position(self):
            tecutil.api_moved('TextBox.position', 'TextBox.corner_locations',
                              '0.13', '2018 R2')

        @property
        def type(self):
            """`constant.TextBox`: Style of the text box fill area and border.

            The text box type can be set to the following:

                * None\_ - (default) No box is drawn around the text.
                * Filled - A filled box around the text which is opaque. if you
                    place it over another |Tecplot 360| object, the underlying
                    object cannot be seen.
                * Hollow - A plain box around the text.

            Example showing how to set the type of the text box for a `TextBox`
            object::

                >>> text = frame.add_text("abc")
                >>> text.box.type = tecplot.constant.TextBox.Filled
            """
            return constant.TextBox(_tecutil.TextBoxGetType(self.uid))

        @type.setter
        @tecutil.lock()
        def type(self, value):
            _tecutil.TextBoxSetType(self.uid, constant.TextBox(value).value)

    @tecutil.lock_attributes
    class Text(object):
        """Text annotation."""
        def __init__(self, uid, frame):
            self.uid = uid
            self.frame = frame

        def __str__(self):
            """String representation of the text.

            Example::

                >>> print(frame.add_text('Orange'))
                Orange
            """
            return self.text_string

        def __eq__(self, other):
            """Checks for `Text` equality in the |Tecplot Engine|.

            Returns:
                `bool`: `True` if the unique ID numbers are the same for both
                `Text objects <Text>`.

            This example shows how the literal strings that the `Text` objects hold
            are equal, but the `Text` objects themselves are different::

                >>> text1 = frame.add_text('Orange')
                >>> text2 = frame.add_text('Orange')
                >>> text1.text_string == text2.text_string
                True
                >>> text1 == text2
                False
            """
            return self.uid == other.uid

        def __ne__(self, other):
            """Checks for `Text` inequality in the |Tecplot Engine|.

            Returns:
                `bool`: `True` if the unique ID numbers are not the same for both
                `Text objects <Text>`

            This example shows how the literal strings that the `Text` objects hold
            are equal, but the `Text` objects themselves are different::

                >>> text1 = frame.add_text('Orange')
                >>> text2 = frame.add_text('Orange')
                >>> text1.text_string != text2.text_string
                False
                >>> text1 != text2
                True
            """
            return self.uid != other.uid

        @property
        def type(self):
            r"""`TextType`: Normal or LaTeX text type setting.

            Possible values are `TextType.Regular` or `TextType.LaTeX`::

                >>> text = frame.add_text(r'\alpha')
                >>> text.type = TextType.LaTeX
            """
            return _tecutil.TextGetType(self.uid)

        @type.setter
        @tecutil.lock()
        def type(self, value):
            _tecutil.TextSetType(self.uid, constant.TextType(value).value)

        @property
        def box(self):
            """`annotation.TextBox`: The frame and area around this `Text` object.

            The text box is a rectangular frame drawn around the text. Note that in
            order to show the text box, you must set TextBox.type to a value other
            than `constant.TextBox.None_`.

           Example showing how to enable the text box for a `Text` object::

                >>> text = frame.add_text("abc")
                >>> text.box.type = tecplot.constant.TextBox.Filled
            """
            return TextBox(self)

        @property
        def text_box(self):
            tecutil.api_moved('Text.text_box', 'Text.box', '0.13', '2018 R2')

        @property
        def font(self):
            """`TextFont`: Typeface properties for a `Text` object.

            Example usage::

                >>> text = frame.add_text('abc')
                >>> text.font.typeface = 'Times'
            """
            return TextFont(self)

        @property
        def anchor(self):
            """`TextAnchor`: Anchor location of this `Text` object.

            Specify the anchor point, or fixed point, for the text object.
            As the text object grows or shrinks, the anchor location is fixed,
            while the rest of the box adjusts to accommodate the new size.
            (default = `TextAnchor.Left`)

            There are nine possible anchor position points, corresponding to the
            left, right, and center positions on the headline, midline,
            and baseline of the text box.

            Example showing how to set the anchor of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.anchor = tecplot.constant.TextAnchor.Center

            .. seealso:: `Text.position`
            """
            with self.frame.activated():
                return _tecutil.TextGetAnchor(self.uid)

        @anchor.setter
        @tecutil.lock()
        def anchor(self, value):
            with self.frame.activated():
                _tecutil.TextSetAnchor(self.uid, constant.TextAnchor(value).value)

        @property
        def angle(self):
            """`float` (degrees counter-clockwise): Angle of the text box in degrees.

            The text angle is the orientation of the text relative to the axis.
            The angle is measured in degrees counter-clockwise from horizontal.
            Horizontal text is at zero degrees; vertical text is at 90 degrees.

            Example showing how to set the angle of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.angle = 45
            """
            with self.frame.activated():
                return _tecutil.TextGetAngle(self.uid)

        @angle.setter
        @tecutil.lock()
        def angle(self, value):
            with self.frame.activated():
                _tecutil.TextSetAngle(self.uid, float(value))

        @property
        def position_coordinate_system(self):
            """`CoordSys`: Position coordinate system of the `Text` object.

            The text object may be positioned using either the grid coordinate
            system or the frame coordinate system and must be one of
            `CoordSys.Frame` or `CoordSys.Grid`

            If the position_coordinate_system is `CoordSys.Frame`, then the
            size_units property must be `Units.Frame` or `Units.Point`.

            The text object's position and text height are adjusted so that it
            remains identical to its visual appearance in the original
            coordinate and unit system.

            If the size units are `Units.Grid` and the position coordinate system
            is changed to `CoordSys.Frame`, then the size units will be changed
            to `Units.Frame`. (default = CoordSys.Frame)

            Example showing how to set the position coordinate system
            for a `Text` object::

                >>> from tecplot.constant import CoordSys
                >>> text = frame.add_text("abc")
                >>> text.position_coordinate_system = CoordSys.Grid

            Example showing side effect if size units are `CoordSys.Grid` and
            the coordinate system is changed to `CoordSys.Frame`::

                >>> from tecplot.constant import CoordSys, Units
                >>> text = frame.add_text("abc")
                >>> text.font.size_units = Units.Grid
                >>> text.position_coordinate_system = CoordSys.Frame
                >>> text.position_coordinate_system
                CoordSys.Frame
                >>> text.font.size_units
                Units.Frame
            """
            with self.frame.activated():
                result = _tecutil.TextGetPositionCoordSys(self.uid)
                return constant.CoordSys(result)

        @position_coordinate_system.setter
        @tecutil.lock()
        def position_coordinate_system(self, value):
            with self.frame.activated():
                coord_sys = constant.CoordSys(value)
                size_units = self.font.size_units
                if (
                    coord_sys == constant.CoordSys.Frame and
                    size_units == constant.Units.Grid
                ):
                    # if coord-sys is frame, then units can not be grid
                    size_units = constant.Units.Frame
                _tecutil.TextSetCoordSysAndUnits(self.uid, coord_sys.value,
                                                 size_units.value)

        @property
        def line_spacing(self):
            """`float` (default = 1.0): Spacing between lines in the text box.

            Line spacing is dependent on the height of the text and the size unit
            system in which it is drawn. This example shows how to set the line
            spacing of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.line_spacing = 4
            """
            with self.frame.activated():
                return _tecutil.TextGetLineSpacing(self.uid)

        @line_spacing.setter
        @tecutil.lock()
        def line_spacing(self, line_spacing):
            with self.frame.activated():
                _tecutil.TextSetLineSpacing(self.uid, float(line_spacing))

        @property
        def text_string(self):
            """`str`: The text to be displayed in a text box.

            You can embed Greek, Math, and User-defined characters into
            English-font strings by enclosing them with text formatting tags,
            together with the keyboard characters.

            The text formatting tags and their effects are as follows. Format tags
            are not case sensitive and may be either upper or lower case:

                * <b>...</b> - Boldface
                * <i>...</i> - Italic
                * <verbatim>...</verbatim> - Verbatim
                * <sub>...</sub> - Subscripts
                * <sup>...</sup> - Superscripts
                * <greek>...</greek> - Greek font.
                * <math>...</math> - Math font.
                * <userdef>...</userdef> - User-defined font.
                * <helvetica>...</helvetica> - Helvetica font.
                * <times>...</times> - Times font.
                * <courier>...</courier> - Courier font.

            Not all fonts have Bold and/or Italic variants. For fonts that do not
            have these styles, the <b> and/or <i> tags may have no effect.

            Embedding and escaping special characters work only in English-font
            text; they have no effect in text created in Greek, Math, or
            User-defined character sets.

            You can produce subscripts or superscripts by enclosing any characters
            with <sub>...</sub> or <sup>...</sup>, respectively. |Tecplot 360| has
            only one level of superscripts and subscripts. Expressions requiring
            additional levels must be created by hand using multiple text objects.
            If you alternate subscripts and superscripts, |Tecplot 360| positions
            the superscript directly above the subscript. To produce consecutive
            superscripts, enclose all superscript characters in a single pair of
            tags.

            To insert a tag into text literally, precede the first angle bracket
            with a backslash ("\"). To insert a backslash in the text, just type
            two backslashes ("\\"). This example shows how to set the text string
            of a `Text` object::

                >>> text = frame.add_text('abc')
                >>> text.text_string
                'abc'
                >>> text.text_string ='def'
                >>> text.text_string
                'def'
            """
            with self.frame.activated():
                success, text_string = _tecutil.TextGetString(self.uid)
                if not success:
                    raise TecplotSystemError()
                return text_string

        @text_string.setter
        @tecutil.lock()
        def text_string(self, value):
            with self.frame.activated():
                _tecutil.TextSetString(self.uid, str(value))

        @property
        @tecutil.lock()
        def position(self):
            r"""`tuple`: Anchor position of the `Text`.

            This is the position of the `Text` on the `Frame` and will be
            :math:`(x,y)` or :math:`(\theta,r)` depending on the plot type
            (Cartesian or polar). This example shows how to set the anchor position
            of a `Text` object::

                >>> text = frame.add_text("abc")
                >>> text.position = (1.0, 2.0)

            .. seealso:: `Text.anchor`
            """
            with self.frame.activated():
                pos = _tecutil.TextGetAnchorPos(self.uid)
                if self.position_coordinate_system == constant.CoordSys.Grid3D:
                    return tecutil.XYZ(*pos)
                else:
                    return tecutil.XY(*pos[:2])

        @position.setter
        @tecutil.lock()
        def position(self, values):
            pos = tecutil.XYZ(*[float(x) for x in values])
            with self.frame.activated():
                _tecutil.TextSetAnchorPos(self.uid, pos.x or 0., pos.y or 0.,
                                          pos.z or 0.)

        @property
        def anchor_position(self):
            tecutil.api_moved('Text.anchor_position', 'Text.position',
                              '0.13', '2018 R2')

        @anchor_position.setter
        def anchor_position(self, values):
            tecutil.api_moved('Text.anchor_position', 'Text.position',
                              '0.13', '2018 R2')

        @property
        def scope(self):
            """`Scope`: The `Scope` (local or global) of the `Text`.

            `Annotations <Annotation>` with local scope are displayed only in the
            `frame <Frame>` in which they are created. If the `annotation
            <Annotation>` is defined as having `global <Scope.Global>` scope, it
            will appear in all "like" `frames <Frame>`. That is, those frames using
            the same data set as the one in which the `annotation <Annotation>` was
            created. (default: `Scope.Local`)

            Example showing how to set the scope of a `Text` object::

                >>> text = frame.add_text("abc")
                >>> text.scope = tecplot.constant.Scope.Global
            """
            return constant.Scope(_tecutil.TextGetScope(self.uid))

        @scope.setter
        @tecutil.lock()
        def scope(self, scope):
                _tecutil.TextSetScope(self.uid, constant.Scope(scope).value)

        @property
        def attached_map_index(self):
            """`Index` or `None`: Index of the attached fieldmap or linemap.

            Example showing how to set the attached object `Index` of a `Text`
            object::

                >>> text = frame.add_text("abc")
                >>> text.attached_map_index = 1
            """
            with self.frame.activated():
                if _tecutil.TextIsAttached(self.uid):
                    return tecutil.Index(_tecutil.TextGetZoneOrMap(self.uid) - 1)

        @attached_map_index.setter
        @tecutil.lock()
        def attached_map_index(self, value):
            with self.frame.activated():
                if value is None:
                    _tecutil.TextSetAttached(self.uid, False)
                else:
                    _tecutil.TextSetAttached(self.uid, True)
                    _tecutil.TextSetZoneOrMap(self.uid, tecutil.Index(value) + 1)

        @property
        def zone_or_map(self):
            tecutil.api_moved('Text.zone_or_map', 'Text.attached_map_index',
                              '0.13', '2018 R2')

        @zone_or_map.setter
        def zone_or_map(self, value):
            tecutil.api_moved('Text.zone_or_map', 'Text.attached_map_index',
                              '0.13', '2018 R2')

        @property
        def color(self):
            """`Color`: `Color` of the `Text` object.

            Default: `Color.Black`. Example showing how to set the `Color` of a
            `Text` object::

                >>> text = frame.add_text("abc")
                >>> text.color = tecplot.constant.Color.Blue
            """
            return constant.Color(_tecutil.TextGetColor(self.uid))

        @color.setter
        @tecutil.lock()
        def color(self, color):
            with self.frame.activated():
                _tecutil.TextSetColor(self.uid, constant.Color(color).value)

        @property
        def clipping(self):
            """`Clipping`: `Clipping` properties of the `Text`

            Clipping refers to displaying only that portion of an object that falls
            within a specified clipping region of the plot. If you have specified
            your text position in the Frame coordinate system, the `Text`
            will be clipped to the frame. Default: `Clipping.ClipToViewport`.

            If you have specified the Grid coordinate system, you can choose to
            clip your `Text` to the frame or the viewport. The size of the
            viewport depends on the plot type as follows:

                * 3D Cartesian - The viewport is the same as the frame, so viewport
                    clipping is the same as frame clipping.
                * 2D Cartesian/XY Line - The viewport is defined by the extents of
                    the X and Y axes.
                * Polar Line/Sketch - By default, the viewport is the same as the
                    frame.

            Example showing how to set the clipping of a `Text`::

                >>> text = frame.add_text('abc')
                >>> text.clipping = tecplot.constant.Clipping.ClipToFrame
            """
            with self.frame.activated():
                return constant.Clipping(_tecutil.TextGetClipping(self.uid))

        @clipping.setter
        @tecutil.lock()
        def clipping(self, clipping):
            with self.frame.activated():
                _tecutil.TextSetClipping(self.uid,
                                         constant.Clipping(clipping).value)