class interface DRAWABLE_TEXT

creation
   make
      --  Create/initialise text object.


feature(s) from DRAWABLE_TEXT
   --  Creation

   make
      --  Create/initialise text object.


feature(s) from DRAWABLE_TEXT
   --  Creation

   reset
      --  Create/initialise text object.


feature(s) from DRAWABLE_TEXT
   --  Text

   set_text (txt: STRING)
      --  Set the text to draw.

      require
         valid_txt: txt /= Void
      ensure
         done: text.is_equal(txt)

feature(s) from DRAWABLE_TEXT
   --  Text output specifications

   set_position (pt: POINT)
      --  Set reference point used to position the text.

      require
         valid_position: pt /= Void
      ensure
         done: pos_x = pt.x and pos_y = pt.y

   set_area (rpos: RECTANGLE)
      --  Set area which will be filled with background colour, 
      --  assumes window device in text mode.
      --  (Default: none, text output transparent).

      require
         ok: rpos /= Void
      ensure
         done: has_area;
         area_ok: area_x = rpos.lower.x and area_y = rpos.lower.y and area_xp = rpos.upper.x + 1 and area_yp = rpos.upper.y + 1

   set_color (clr: COLOR)
      --  Set text colour.

      require
         valid_color: clr /= Void

   set_justification (justif: INTEGER)
      --  Set justification. The justification value is the width 
      --  to be added to the string at the break characters.

      require
         valid: justif >= 0
      ensure
         done: justification = justif

   set_intercharacter_spacing (ispace: INTEGER)
      --  Set intecharacter spacing (default: 0).

      require
         valid: ispace >= 0
      ensure
         done: intercharacter_spacing = ispace

feature(s) from DRAWABLE_TEXT
   --  Alignment

   align_top
      --  Reference point aligned with the top of the bounding rectangle (default).


   align_baseline
      --  Reference point aligned with the base line of the text.


   align_bottom
      --  Reference point aligned with the bottom of the bounding rectangle.


   align_left
      --  Reference point horizontally aligned with the left of the bounding rectangle (Default).


   align_center
      --  Reference point aligned with the centre of the bounding rectangle.


   align_right
      --  Reference point horizontally aligned with the right of the bounding rectangle.


invariant
   valid: text /= Void;

end of DRAWABLE_TEXT