payloads/libpayload/curses/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 1.11 2010/01/23 21:12:08 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    T((T_CALLED("set_field_" #name "(%p,%s)"), field, _traceattr(attr)));\
  46    if ( attr == A_NORMAL || ((attr & A_ATTRIBUTES) == attr) )\
  47      {\
  48        Normalize_Field( field );\
  49        if (field != 0) \
  50          { \
  51          if ((field -> name) != attr)\
  52            {\
  53              field -> name = attr;\
  54              res = _nc_Synchronize_Attributes( field );\
  55            }\
  56          else\
  57            {\
  58              res = E_OK;\
  59            }\
  60          }\
  61      }\
  62    RETURN(res);\
  63 }
  64
  65 /* "Template" macro to generate a function to get a fields attribute */
  66 #define GEN_FIELD_ATTR_GET_FCT( name ) \
  67 NCURSES_IMPEXP chtype NCURSES_API field_ ## name (const FIELD * field)\
  68 {\
  69    T((T_CALLED("field_" #name "(%p)"), (const void *) field));\
  70    returnAttr( A_ATTRIBUTES & (Normalize_Field( field ) -> name) );\
  71 }
  72
  73 /*---------------------------------------------------------------------------
  74 |   Facility      :  libnform
  75 |   Function      :  int set_field_fore(FIELD *field, chtype attr)
  76 |
  77 |   Description   :  Sets the foreground of the field used to display the
  78 |                    field contents.
  79 |
  80 |   Return Values :  E_OK             - success
  81 |                    E_BAD_ARGUMENT   - invalid attributes
  82 |                    E_SYSTEM_ERROR   - system error
  83 +--------------------------------------------------------------------------*/
  84 GEN_FIELD_ATTR_SET_FCT(fore)
  85
  86 /*---------------------------------------------------------------------------
  87 |   Facility      :  libnform
  88 |   Function      :  chtype field_fore(const FIELD *)
  89 |
  90 |   Description   :  Retrieve fields foreground attribute
  91 |
  92 |   Return Values :  The foreground attribute
  93 +--------------------------------------------------------------------------*/
  94 GEN_FIELD_ATTR_GET_FCT(fore)
  95
  96 /*---------------------------------------------------------------------------
  97 |   Facility      :  libnform
  98 |   Function      :  int set_field_back(FIELD *field, chtype attr)
  99 |
 100 |   Description   :  Sets the background of the field used to display the
 101 |                    fields extend.
 102 |
 103 |   Return Values :  E_OK             - success
 104 |                    E_BAD_ARGUMENT   - invalid attributes
 105 |                    E_SYSTEM_ERROR   - system error
 106 +--------------------------------------------------------------------------*/
 107 GEN_FIELD_ATTR_SET_FCT(back)
 108
 109 /*---------------------------------------------------------------------------
 110 |   Facility      :  libnform
 111 |   Function      :  chtype field_back(const
 112 |
 113 |   Description   :  Retrieve fields background attribute
 114 |
 115 |   Return Values :  The background attribute
 116 +--------------------------------------------------------------------------*/
 117 GEN_FIELD_ATTR_GET_FCT(back)
 118
 119 /* fld_attr.c ends here */