contrib/ncurses/form/frm_hook.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: frm_hook.c,v 1.17 2016/01/23 21:32:00 tom Exp $")
  36
  37 /* "Template" macro to generate function to set application specific hook */
  38 #define GEN_HOOK_SET_FUNCTION( typ, name ) \
  39 NCURSES_IMPEXP int NCURSES_API set_ ## typ ## _ ## name (FORM *form, Form_Hook func)\
  40 {\
  41    T((T_CALLED("set_" #typ"_"#name"(%p,%p)"), (void *) form, TR_FUNC(func)));\
  42    (Normalize_Form( form ) -> typ ## name) = func ;\
  43    RETURN(E_OK);\
  44 }
  45
  46 /* "Template" macro to generate function to get application specific hook */
  47 #define GEN_HOOK_GET_FUNCTION( typ, name ) \
  48 NCURSES_IMPEXP Form_Hook NCURSES_API typ ## _ ## name ( const FORM *form )\
  49 {\
  50    T((T_CALLED(#typ "_" #name "(%p)"), (const void *) form));\
  51    returnFormHook( Normalize_Form( form ) -> typ ## name );\
  52 }
  53
  54 /*---------------------------------------------------------------------------
  55 |   Facility      :  libnform
  56 |   Function      :  int set_field_init(FORM *form, Form_Hook f)
  57 |
  58 |   Description   :  Assigns an application defined initialization function
  59 |                    to be called when the form is posted and just after
  60 |                    the current field changes.
  61 |
  62 |   Return Values :  E_OK      - success
  63 +--------------------------------------------------------------------------*/
  64 GEN_HOOK_SET_FUNCTION(field, init)
  65
  66 /*---------------------------------------------------------------------------
  67 |   Facility      :  libnform
  68 |   Function      :  Form_Hook field_init(const FORM *form)
  69 |
  70 |   Description   :  Retrieve field initialization routine address.
  71 |
  72 |   Return Values :  The address or NULL if no hook defined.
  73 +--------------------------------------------------------------------------*/
  74 GEN_HOOK_GET_FUNCTION(field, init)
  75
  76 /*---------------------------------------------------------------------------
  77 |   Facility      :  libnform
  78 |   Function      :  int set_field_term(FORM *form, Form_Hook f)
  79 |
  80 |   Description   :  Assigns an application defined finalization function
  81 |                    to be called when the form is unposted and just before
  82 |                    the current field changes.
  83 |
  84 |   Return Values :  E_OK      - success
  85 +--------------------------------------------------------------------------*/
  86 GEN_HOOK_SET_FUNCTION(field, term)
  87
  88 /*---------------------------------------------------------------------------
  89 |   Facility      :  libnform
  90 |   Function      :  Form_Hook field_term(const FORM *form)
  91 |
  92 |   Description   :  Retrieve field finalization routine address.
  93 |
  94 |   Return Values :  The address or NULL if no hook defined.
  95 +--------------------------------------------------------------------------*/
  96 GEN_HOOK_GET_FUNCTION(field, term)
  97
  98 /*---------------------------------------------------------------------------
  99 |   Facility      :  libnform
 100 |   Function      :  int set_form_init(FORM *form, Form_Hook f)
 101 |
 102 |   Description   :  Assigns an application defined initialization function
 103 |                    to be called when the form is posted and just after
 104 |                    a page change.
 105 |
 106 |   Return Values :  E_OK       - success
 107 +--------------------------------------------------------------------------*/
 108 GEN_HOOK_SET_FUNCTION(form, init)
 109
 110 /*---------------------------------------------------------------------------
 111 |   Facility      :  libnform
 112 |   Function      :  Form_Hook form_init(const FORM *form)
 113 |
 114 |   Description   :  Retrieve form initialization routine address.
 115 |
 116 |   Return Values :  The address or NULL if no hook defined.
 117 +--------------------------------------------------------------------------*/
 118 GEN_HOOK_GET_FUNCTION(form, init)
 119
 120 /*---------------------------------------------------------------------------
 121 |   Facility      :  libnform
 122 |   Function      :  int set_form_term(FORM *form, Form_Hook f)
 123 |
 124 |   Description   :  Assigns an application defined finalization function
 125 |                    to be called when the form is unposted and just before
 126 |                    a page change.
 127 |
 128 |   Return Values :  E_OK       - success
 129 +--------------------------------------------------------------------------*/
 130 GEN_HOOK_SET_FUNCTION(form, term)
 131
 132 /*---------------------------------------------------------------------------
 133 |   Facility      :  libnform
 134 |   Function      :  Form_Hook form_term(const FORM *form)
 135 |
 136 |   Description   :  Retrieve form finalization routine address.
 137 |
 138 |   Return Values :  The address or NULL if no hook defined.
 139 +--------------------------------------------------------------------------*/
 140 GEN_HOOK_GET_FUNCTION(form, term)
 141
 142 /* frm_hook.c ends here */