contrib/ncurses-5.4/form/fld_attr.c

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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 #include "form.priv.h"
  34
  35 MODULE_ID("$Id: fld_attr.c,v 1.7 2003/10/25 15:17:08 tom Exp $")
  36
  37 /*----------------------------------------------------------------------------
  38   Field-Attribute manipulation routines
  39   --------------------------------------------------------------------------*/
  40 /* "Template" macro to generate a function to set a fields attribute */
  41 #define GEN_FIELD_ATTR_SET_FCT( name ) \
  42 NCURSES_IMPEXP int NCURSES_API set_field_ ## name (FIELD * field, chtype attr)\
  43 {\
  44    int res = E_BAD_ARGUMENT;\
  45    if ( attr==A_NORMAL || ((attr & A_ATTRIBUTES)==attr) )\
  46      {\
  47        Normalize_Field( field );\
  48        if ((field -> name) != attr)\
  49          {\
  50            field -> name = attr;\
  51            res = _nc_Synchronize_Attributes( field );\
  52          }\
  53        else\
  54          res = E_OK;\
  55      }\
  56    RETURN(res);\
  57 }
  58
  59 /* "Template" macro to generate a function to get a fields attribute */
  60 #define GEN_FIELD_ATTR_GET_FCT( name ) \
  61 NCURSES_IMPEXP chtype NCURSES_API field_ ## name (const FIELD * field)\
  62 {\
  63    return ( A_ATTRIBUTES & (Normalize_Field( field ) -> name) );\
  64 }
  65
  66 /*---------------------------------------------------------------------------
  67 |   Facility      :  libnform
  68 |   Function      :  int set_field_fore(FIELD *field, chtype attr)
  69 |
  70 |   Description   :  Sets the foreground of the field used to display the
  71 |                    field contents.
  72 |
  73 |   Return Values :  E_OK             - success
  74 |                    E_BAD_ARGUMENT   - invalid attributes
  75 |                    E_SYSTEM_ERROR   - system error
  76 +--------------------------------------------------------------------------*/
  77 GEN_FIELD_ATTR_SET_FCT( fore )
  78
  79 /*---------------------------------------------------------------------------
  80 |   Facility      :  libnform
  81 |   Function      :  chtype field_fore(const FIELD *)
  82 |
  83 |   Description   :  Retrieve fields foreground attribute
  84 |
  85 |   Return Values :  The foreground attribute
  86 +--------------------------------------------------------------------------*/
  87 GEN_FIELD_ATTR_GET_FCT( fore )
  88
  89 /*---------------------------------------------------------------------------
  90 |   Facility      :  libnform
  91 |   Function      :  int set_field_back(FIELD *field, chtype attr)
  92 |
  93 |   Description   :  Sets the background of the field used to display the
  94 |                    fields extend.
  95 |
  96 |   Return Values :  E_OK             - success
  97 |                    E_BAD_ARGUMENT   - invalid attributes
  98 |                    E_SYSTEM_ERROR   - system error
  99 +--------------------------------------------------------------------------*/
 100 GEN_FIELD_ATTR_SET_FCT( back )
 101
 102 /*---------------------------------------------------------------------------
 103 |   Facility      :  libnform
 104 |   Function      :  chtype field_back(const
 105 |
 106 |   Description   :  Retrieve fields background attribute
 107 |
 108 |   Return Values :  The background attribute
 109 +--------------------------------------------------------------------------*/
 110 GEN_FIELD_ATTR_GET_FCT( back )
 111
 112 /* fld_attr.c ends here */