CMakeLua/Source/CursesDialog/form/fld_max.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
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  28
  29 /****************************************************************************
  30  *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
  31  ****************************************************************************/
  32
  33 #include "form.priv.h"
  34
  35 MODULE_ID("$Id: fld_max.c,v 1.1 2001/11/05 16:53:00 berk Exp $")
  36
  37 /*---------------------------------------------------------------------------
  38 |   Facility      :  libnform
  39 |   Function      :  int set_max_field(FIELD *field, int maxgrow)
  40 |
  41 |   Description   :  Set the maximum growth for a dynamic field. If maxgrow=0
  42 |                    the field may grow to any possible size.
  43 |
  44 |   Return Values :  E_OK           - success
  45 |                    E_BAD_ARGUMENT - invalid argument
  46 +--------------------------------------------------------------------------*/
  47 int set_max_field(FIELD *field, int maxgrow)
  48 {
  49   if (!field || (maxgrow<0))
  50     RETURN(E_BAD_ARGUMENT);
  51   else
  52     {
  53       bool single_line_field = Single_Line_Field(field);
  54
  55       if (maxgrow>0)
  56         {
  57           if (( single_line_field && (maxgrow < field->dcols)) ||
  58               (!single_line_field && (maxgrow < field->drows)))
  59             RETURN(E_BAD_ARGUMENT);
  60         }
  61       field->maxgrow = maxgrow;
  62       field->status &= ~_MAY_GROW;
  63       if (!(field->opts & O_STATIC))
  64         {
  65           if ((maxgrow==0) ||
  66               ( single_line_field && (field->dcols < maxgrow)) ||
  67               (!single_line_field && (field->drows < maxgrow)))
  68             field->status |= _MAY_GROW;
  69         }
  70     }
  71   RETURN(E_OK);
  72 }
  73
  74 /* fld_max.c ends here */