#include <pads.h>
SRCFILE("padrcv.c")

void PadRcv::invalidate()
{
	static short uniq;

	magic = 0;
	oid = ++uniq;
}
	
#define MAGIC (('P'<<8)|'R')
PadRcv::PadRcv()
{
	invalidate();
	magic = MAGIC;
}

int PadRcv::isvalid()		{ return magic == MAGIC; }

PadRcv::~PadRcv()		{ invalidate(); }

char *PadRcv::help(long)	{ return 0; }

void MissingVirtual(char *s, char *f)
{
	char t[128];
	trace("MissingVirtual(%s,%s)", s, f);
	sprintf(t, "%s object does not define %s()", s, f);
	PadsWarn(t);
}

char *PadRcv::kbd(char*)	{ return "no kbd() function"; }

void PadRcv::numeric(long)	{ MissingVirtual("NumericRange()", "numeric"); }

void PadRcv::userclose()	{ MissingVirtual("USERCLOSE", "userclose"); }

void PadRcv::usercut()		{ MissingVirtual("USERCUT", "usercut"); }

void PadRcv::cycle()		{ MissingVirtual("alarm()", "cycle"); }

void PadRcv::linereq(long, Attrib) { MissingVirtual("lines()", "linereq"); }

int PadRcv::accept(Action /*a*/)
{
//	trace("%d.accept(%d)", this, a);
	return 0;
}

int PadRcv::disc()		{ trace("%d.disc()", this); return 0;	}

void PadRcv::showhelp(long l)
{
	extern int helptopic(char*);
	char *s = help(l);
	if (!s)
		PadsWarn("Sorry. No help provided");
	else if (!helptopic(s))
		PadsWarn( "Sorry, help topic not found: %s", s);
}