#import "ElementFBYT.h"

// implements FBYT, FWRD, FLNG, FLLG
@implementation ElementFBYT

- (id)initForType:(NSString *)t withLabel:(NSString *)l
{
	self = [super initForType:t withLabel:l];
	if(!self) return nil;
	if     ([t isEqualToString:@"FBYT"])	length = 1;
	else if([t isEqualToString:@"FWRD"])	length = 2;
	else if([t isEqualToString:@"FLNG"])	length = 4;
	else if([t isEqualToString:@"FLLG"])	length = 8;
	else									length = 0;
	return self;
}

- (id)copyWithZone:(NSZone *)zone
{
	ElementFBYT *element = [super copyWithZone:zone];
	[element setLength:length];
	return element;
}

- (void)readDataFrom:(TemplateStream *)stream
{
	[stream advanceAmount:length pad:NO];
}

- (unsigned int)sizeOnDisk
{
	return length;
}

- (void)writeDataTo:(TemplateStream *)stream
{
	[stream advanceAmount:length pad:YES];
}

- (void)setLength:(unsigned long)l
{
	length = l;
}

- (unsigned long)length
{
	return length;
}

- (NSString *)stringValue
{
	return @"";
}

- (void)setStringValue:(NSString *)str
{
}

- (NSString *)label
{
	if(length) return @"";
	return [super label];
}

- (BOOL)editable
{
	return NO;
}

@end