dialog.c

汇编语言编的关于ov143b.asm的小程序

/*  004  28-May-87  dialog.c

        Copyright (c) 1987 by Blue Sky Software.  All rights reserved.
*/

#include <stdio.h>
#include "dialog.h"
#include "direct.h"
#include "strmem.h"

#ifdef LINT_ARGS                               /* this belongs somewhere else */
char * ALTCALL read_str(int, char *, int);
#else
char * ALTCALL read_str();
#endif

/***************************************************************************
                               D B X _ O P E N
 **************************************************************************/

void ALTCALL
dbx_open(dbp,options)  /* open a dialog box */
register D_BOX *dbp;
unsigned int options;
{

   /* allocate a save area for the text under the box if the caller
      wants the current video image saved */

   if (options & DBX_SAVE)
      dbp->save = (char *) Malloc((dbp->nrows+2) * (dbp->ncols+2) * 2);
   else
      dbp->save = NULL;

   /* popup a window that is 2 rows and 2 columns larger than the one
      the user wants.  The extra space is for the border around the box. */

   popup(dbp->row-1,dbp->col-1,dbp->nrows+2,dbp->ncols+2,dbp->save);

   /* display a title if there is one */

   if (dbp->title) {
      disp_char_at(' ',dbp->row-1,dbp->col+1);
      disp_str(dbp->title);
      disp_char(' ');
   }
}


/****************************************************************************
                             D B X _ C L O S E
 ***************************************************************************/

void ALTCALL
dbx_close(dbp)         /* close a dialog box */
register D_BOX *dbp;
{
   /* not much to it really, most of the work is done by popdwn() */

   if (dbp->save) {
      popdwn(dbp->row-1,dbp->col-1,dbp->nrows+2,dbp->ncols+2,dbp->save);
      free(dbp->save);
   }
}


/***************************************************************************
                              D B X _ R D F L D
 ***************************************************************************/

char *ALTCALL
dbx_rdfld(dbp,dfp)     /* read a dialog box field value */
register D_BOX *dbp;
register D_FLD *dfp;
{
   char *fldval;

   dbx_goto(dbp,dfp->row,dfp->col);                    /* start of field  */

   return(read_str(dfp->len,dfp->value,dfp->pos));     /* read and return */
}


#ifndef DBX_MACROS     /* only define following rtns if not defined as macros */

/***************************************************************************
                              D B X _ D I S P
 **************************************************************************/

void ALTCALL
dbx_disp(dbp,s,ro,co)  /* display text in a dialog box */
register D_BOX *dbp;
char *s;
int ro, co;
{
   disp_str_at(s,dbp->row+ro,dbp->col+co);
}


/***************************************************************************
                             D B X _ G O T O
 ***************************************************************************/

void ALTCALL
dbx_goto(dbp,ro,co)    /* goto a position in dialog box */
register D_BOX *dbp;
int ro,co;
{
   gotorc(dbp->row+ro,dbp->col+co);
}

#endif   /* ifndef DBX_MACROS */