/*  %kw # %v    %n    %d    %t #                   */
/*  Version # 3    MULTIRES.C    8-Oct-93    14:26:16 #    */
/***************************************************/
/*   METAGRAPHICS SOFTWARE CORPORATION (c) 1992    */
/*   Demonstrates how to use two different display */
/*   adapters, such as VGA and Hercules, or to     */
/*   switch between two modes on the same adapter. */
/***************************************************/

#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <conio.h>
#include <dos.h>
#include <ctype.h>
#include "metawndo.h"      /* master MetaWINDOW include file */

/* special stack size declaration if using Turbo or Borland C++ */
#ifdef      TurboC
extern unsigned _stklen = 14336U;  /* stack size 14K */
#endif

int	GrafixCard, GrafixInput;

void  put_stuffup( void );
void  put_Morestuffup( void );
void  quit( char *msgptr );

#define mfDspGraf	0x0020    /* Display status - text(0)/graphics(1)		*/

void main( int argc, char *argv[] )
{
   int      i;
   grafMap  altBMap;
   grafPort *scrPort, altPort;

   /* choose a mode/display for the default port */
   MetQuery(argc,argv);
   i = InitGraphics(GrafixCard);
   if( i != 0 )
      GrInitErr(i);   /* display reason for no go */   

   /* get pointer to current port */ 
   GetPort( &scrPort );

   printf("\n\n Press a key to choose another mode/display ");
   getch();
   printf("\n Calling MetQuery....... ");
   MetQuery( argc, argv );

   /* initialize second grafMap and grafPort */

   i = InitBitmap( GrafixCard, &altBMap );
   if( i ) {
      CloseBitmap( &altBMap );
      quit("Error initializing second grafmap");
   }
   InitPort( &altPort );
   PortBitmap( &altBMap );
   PortSize( altBMap.pixWidth, altBMap.pixHeight );
   ClipRect( &altPort.portRect);
   EraseRect( &altPort.portRect);


   /* Set to default screen */
   SetPort( scrPort );
   SetDisplay( GrafPg0 );
   put_stuffup();
   getch();

   /* Switch to second screen */
   SetPort( &altPort );
   SetDisplay( GrafPg0 );
   put_stuffup();
   getch();

   /* Switch back to default screen */
   SetPort( scrPort );

   /*
   if both screens are on the same hardware, a transition from
   text to graphics modes must be performed to reset the hardware.
   Rather than really put it in text mode, we'll just lie about what
   mode its in
   */
   scrPort->portMap->mapFlags &= ~mfDspGraf;
   SetDisplay( GrafPg0 );

   put_Morestuffup();
   getch();

   /* Switch back to second screen */
   SetPort( &altPort );
   altBMap.mapFlags &= ~mfDspGraf;
   SetDisplay( GrafPg0 );     /* in case both screens on same hardware */
   put_Morestuffup();
   getch();

   /* Set default screen back to text mode  */
   SetPort( scrPort );
   SetDisplay( TextPg0 );
 
   /* Set second screen back to text mode  */
   SetPort( &altPort ); 
   SetDisplay( TextPg0 );

   /* close the second grafMap */
   i = CloseBitmap( &altBMap );
   if( i )  
      quit("Error closing grafmap" );

   quit("Normal end");

}


void put_stuffup()
{
   long  max_clr;
   rect  scrR;
   char  lclmsg[40];
   grafPort *thePort;

   /* get pointer to current port */ 
   GetPort( &thePort );

   max_clr= QueryColors();
   max_clr++;
   DupRect( &thePort->portRect, &scrR );

   FillRect( &scrR, 27 );
   MoveTo( scrR.Xmax/4, scrR.Ymax/4 );     
   sprintf( lclmsg,"Mode - %dx%d, %ld colors", scrR.Xmax, scrR.Ymax, max_clr); 
   DrawString( lclmsg );

}

void put_Morestuffup()
{
   rect  R1, R2;
   int   i, j, max_clr;
   char  lclmsg[40];
   grafPort *thePort;

   /* get pointer to current port */ 
   GetPort(&thePort);

   DupRect( &thePort->portRect, &R1 );
   FillRect( &R1, 8 );
   DupRect( &R1, &R2 );
   max_clr = (int) QueryColors() + 1;

   j = (R1.Xmax / max_clr) + 1;
   R2.Xmax = j;
   
   for( i=0; i <= max_clr; i++) {
      PenColor( i );
      PaintRect( &R2 );
      OffsetRect( &R2, j, 0 );
   }

   PenColor( White );
   MoveTo( R1.Xmax/4, R1.Ymax/4 );     
   sprintf( lclmsg, "Mode - %dx%d, %d colors", R1.Xmax, R1.Ymax, max_clr); 
   DrawString( lclmsg );

}

/* clean up and exit, print an exit message */
void quit( char *msgptr )
{
   printf("\n\n%s", msgptr);
   StopGraphics();
   exit(0);
}


#include "metquery.c"