NAME

       XkbAddGeomShape - Add a shape to a keyboard geometry

SYNOPSIS

       XkbShapePtr XkbAddGeomShape (XkbGeometryPtr geom, Atom name, int sz_outlines);

ARGUMENTS

       geom   geometry to be updated

       name   name of the new shape

       sz_outlines
              number of outlines to be reserved

DESCRIPTION

       Xkb  provides functions to add a single new element to the top-level keyboard geometry. In
       each case the num_ * fields of the corresponding structure  is  incremented  by  1.  These
       functions  do  not  change  sz_*  unless there is no more room in the array. Some of these
       functions fill in the values of the element's structure  from  the  arguments.  For  other
       functions, you must explicitly write code to fill the structure's elements.

       The  top-level  geometry  description  includes a list of geometry properties.  A geometry
       property associates an arbitrary string with an  equally  arbitrary  name.  Programs  that
       display  images  of  keyboards  can  use  geometry  properties  as hints, but they are not
       interpreted by Xkb. No other geometry structures refer to geometry properties.

       A geometry contains an arbitrary number of  shapes,  each  of  which  is  made  up  of  an
       arbitrary  number  of  outlines.   XkbAddGeomShape  adds  a  shape  to  a geometry geom by
       allocating space for sz_outlines outlines for it and giving it the name specified by name.
       If  a shape with name name already exists in the geometry, a pointer to the existing shape
       is returned.  XkbAddGeomShape returns NULL if any of the parameters is empty or if it  was
       not  able to allocate space. To allocate space for an arbitrary number of geometry shapes,
       use XkbAllocGeomShapes.

STRUCTURES

           typedef struct _XkbShape {
               Atom              name;           /* shape's name */
               unsigned short    num_outlines;   /* number of outlines for the shape */
               unsigned short    sz_outlines;    /* size of the outlines array */
               XkbOutlinePtr     outlines;       /* array of outlines for the shape */
               XkbOutlinePtr     approx;         /* pointer into the array to the approximating outline */
               XkbOutlinePtr     primary;        /* pointer into the array to the primary outline */
               XkbBoundsRec      bounds;         /* bounding box for the shape; encompasses all outlines */
           } XkbShapeRec, *XkbShapePtr;

SEE ALSO

       XkbAllocGeomShapes(3)