/* 
 * File: prefs.c
 * Project: DXF to RIB
 *  (c) SPDsoft Tuesday, June 21, 1994, GTIC
 */

#include <stdio.h>
#ifdef MYGETOPT
char getopt( int argc, char *argv[], char *format );
#else
#include <unistd.h>
#endif
#include "taylor.h"
#include "prefs.h"
#include "errors.h"
#include "version.h"

static void	usage(char *name);

static void	usage(char *name)
{
	DoError(NO_ERR,INFO_ERR,
		"Usage: %s [-hVcs][-vRtMS][files]",name);
	DoError(NO_ERR,INFO_ERR,"Translate DXF to RIB");
	DoError(NO_ERR,INFO_ERR,"-h: This text");
	DoError(NO_ERR,INFO_ERR,"-V: Print Version");
	DoError(NO_ERR,INFO_ERR,"-c: To stdout");
	DoError(NO_ERR,INFO_ERR,"-v n: Verbose Level (7 for quiet)");
	DoError(NO_ERR,INFO_ERR,"-s: Make not-structured RIB");
	DoError(NO_ERR,INFO_ERR,"-R n: Use n as radius in LINES");
	DoError(NO_ERR,INFO_ERR,"-t n: 0=use polygon, 1=use triangles, 2=use bilinear patch");
	DoError(NO_ERR,INFO_ERR,"-M n: Max vertex memory");
	DoError(NO_ERR,INFO_ERR,"-B n: Max BLOCKS");
	DoError(NO_ERR,INFO_ERR,"-S file: Use shaders in LAYERS");
	DoError(NO_ERR,INFO_ERR,"-p: Generate Normals for Poly*Mesh");
	exit(1);
}

boolean	GetPrefs(PrefsType *PrefsPtr, int argc, char *argv[] )
{
	int	opcion,i;
	float	f;
	extern char     *optarg;
	extern int      optind,opterr;

	PrefsPtr->verbose=2;
	PrefsPtr->tostdout=false;
	PrefsPtr->fromstdin=false;
	PrefsPtr->structured=true;
	PrefsPtr->phong=false;
	PrefsPtr->P4=0;
	PrefsPtr->max_vertex=256;
	PrefsPtr->max_blocks=256;
	PrefsPtr->radius=0.0;
	PrefsPtr->shaderf=NULL;

	while ( (opcion=getopt(argc,argv,"hVcspv:R:t:M:B:S:")) != EOF )
	{
		switch(opcion)
		{
			case 'V':
					DoError(NO_ERR,INFO_ERR,VERS_STR);
					exit(0);
					break;
			case 'h':
					usage(argv[0]);
					exit(0);
					break;
			case 'c':
					PrefsPtr->tostdout=true;
					break;
			case 's':
					PrefsPtr->structured=false;
					break;
			case 'p':
					PrefsPtr->phong=true;
					break;
			case 'v':
					i = atoi(optarg);
					if(( i < 0 )||(i>ASK_ERR))
						DoError(INPUT_ERR,WARN_ERR,"Verbose: %d-%d,ignored ",
						0,ASK_ERR);
					else
						PrefsPtr->verbose = i;
					break;
			case 'R':
					f = atof(optarg);
					if( f < 0.0 )
						DoError(INPUT_ERR,WARN_ERR,"Radius: %f<0.0,ignored ",
						f);
					else
						PrefsPtr->radius = f;
					break;
			case 't':
					i = atoi(optarg);
					if(( i < 0 )||( i > 2 ))
						DoError(INPUT_ERR,WARN_ERR,"-t: %d out of range,ignored ",
						i);
					else
						PrefsPtr->P4 = i;
					break;
			case 'M':
					i = atoi(optarg);
					if( i < 0 )
						DoError(INPUT_ERR,WARN_ERR,"-M: %d out of range,ignored ",
						i);
					else
						PrefsPtr->max_vertex = i;
					break;
			case 'B':
					i = atoi(optarg);
					if( i < 0 )
						DoError(INPUT_ERR,WARN_ERR,"-B: %d out of range,ignored ",
						i);
					else
						PrefsPtr->max_blocks = i;
					break;
			case 'S':
					if((PrefsPtr->shaderf = FOPEN(optarg,"r"))==NULL)
						DoError(SYS_ERR,WARN_ERR,"%s: can't open ",optarg);

					break;
			default:
					usage(argv[0]);
					break;
		}
	}
	if(argc==optind)
	{
		PrefsPtr->fromstdin=true;
		PrefsPtr->tostdout=true;
		optind--;
	}
	return( true );
}