Function _nc_Refresh_Current_Field

Source/CursesDialog/form/frm_driver.c:622–731

--------------------------------------------------------------------------- | Facility : libnform | Function : int _nc_Refresh_Current_Field(FORM * form) | | Description : Propagate the changes in the fields window to the | window of the form. | | Return Values : E_OK - on success | E_BAD_ARGUMENT - invalid form poi

|   Return Values :  E_OK              - on success
|                    E_BAD_ARGUMENT    - invalid form pointer
|                    E_SYSTEM_ERROR    - general error
+--------------------------------------------------------------------------*/
int
_nc_Refresh_Current_Field(FORM * form)
{
  WINDOW *formwin;
  FIELD  *field;

  if (!form)
    RETURN(E_BAD_ARGUMENT);

  if (!form->w || !form->current) 
    RETURN(E_SYSTEM_ERROR);

  field    = form->current;
  formwin  = Get_Form_Window(form);

  if (field->opts & O_PUBLIC)
    {
      if (Is_Scroll_Field(field))
        {
          /* Again, in this case the fieldwin isn't derived from formwin,
             so we have to perform a copy operation. */
          if (Single_Line_Field(field))
            { /* horizontal scrolling */
              if (form->curcol < form->begincol)
                  form->begincol = form->curcol;
              else
                {
                  if (form->curcol >= (form->begincol + field->cols))
                      form->begincol = form->curcol - field->cols + 1;
                }
              copywin(form->w,
                      formwin,
                      0,
                      form->begincol,
                      field->frow,
                      field->fcol,
                      field->frow,
                      field->cols + field->fcol - 1,
                      0);
            }
          else
            { /* A multiline, i.e. vertical scrolling field */
              int row_after_bottom,first_modified_row,first_unmodified_row;

              if (field->drows > field->rows)
                {
                  row_after_bottom = form->toprow + field->rows;
                  if (form->currow < form->toprow)
                    {
                      form->toprow = form->currow;
                      field->status |= _NEWTOP;
                    }
                  if (form->currow >= row_after_bottom)
                    {
                      form->toprow = form->currow - field->rows + 1;
                      field->status |= _NEWTOP;