print receipt

gistfile1.m

- (NSData *)create2InchReceipt
{
	User *user = [User getInstance];
	
    	NSMutableData *commands = [[NSMutableData alloc] init];
    
    	[commands appendBytes:"\x1d\x57\x80\x31"
                   length:sizeof("\x1d\x57\x80\x31") - 1];    // Page Area Setting     <GS> <W> nL nH  (nL = 128, nH = 1)
    
    	[commands appendBytes:"\x1b\x61\x01"
                   length:sizeof("\x1b\x61\x01") - 1];    // Center Justification  <ESC> a n       (0 Left, 1 Center, 2 Right)
    
	[commands appendBytes:"\x1d\x21\x11" length:sizeof("\x1d\x21\x11") - 1];    // Width and Height
	[commands appendBytes:"\x1b\x45\x01" length:sizeof("\x1b\x45\x01") - 1];    // Set Emphasized Printing ON
	NSString *venueName = [NSString stringWithFormat:@"%@\n",user.currentVenue.name];
	[commands appendData:[venueName dataUsingEncoding:NSASCIIStringEncoding]];
 	[commands appendBytes:"\x1b\x45\x00" length:sizeof("\x1b\x45\x00") - 1];    // Set Emphasized Printing OFF (same command as on)
    	[commands appendBytes:"\x1d\x21\x00" length:sizeof("\x1d\x21\x00") - 1];    // Cancel Expansion
    	[commands appendData:[@"scan4beer\n\n" dataUsingEncoding:NSASCIIStringEncoding]];
	
    	[commands appendBytes:"\x1b\x61\x00"
                   length:sizeof("\x1b\x61\x00") - 1];    // Left Alignment
	NSDate *today = [NSDate date];
    	NSDateFormatter *dateFormatDay = [[NSDateFormatter alloc]init];
    	[dateFormatDay setDateFormat:@"MM/dd/YYYY"];
	NSDateFormatter *dateFormatTime = [[NSDateFormatter alloc]init];
	[dateFormatTime setDateFormat:@"h:mm a"];
	
	NSString *dateAndTime = [NSString stringWithFormat:@"Date: %@  Time: %@\n--------------------------------\n",[dateFormatDay stringFromDate:today],[dateFormatTime stringFromDate:today]];
    
    	[commands appendData:[dateAndTime dataUsingEncoding:NSASCIIStringEncoding]];
    
    	[commands appendData:[@"1  Coke                    $3.00\n"
						  "2  Miller Beer             $8.00\n"
						  "5  Water                   $6.00\n\n"
						  "Tip                        $1.00\n"
						  "--------------------------------\n"
						  "Total "
                          dataUsingEncoding:NSASCIIStringEncoding]];
	
    	[commands appendBytes:"\x1d\x21\x11"
                   length:sizeof("\x1d\x21\x11") - 1];    // Width and Height Character Expansion  <GS>  !  n
    
    	[commands appendData:[@"      $100.00\n" dataUsingEncoding:NSASCIIStringEncoding]];
    
    	[commands appendBytes:"\x1d\x21\x00"
                   length:sizeof("\x1d\x21\x00") - 1];    // Cancel Expansion - Reference Star Portable Printer Programming Manual
    
	[commands appendData:[@"\n\n" dataUsingEncoding:NSASCIIStringEncoding]];
	
	[commands appendBytes:"\x1b\x61\x01"
                   length:sizeof("\x1b\x61\x01") - 1];    // Center Justification  <ESC> a n       (0 Left, 1 Center, 2 Right)
    
	[commands appendBytes:"\x1d\x21\x55" length:sizeof("\x1d\x21\x55") - 1];    // Width and Height Character Expansion  <GS>  !  n
    	[commands appendData:[@"ABCD\n" dataUsingEncoding:NSASCIIStringEncoding]];
	
    	[commands appendBytes:"\x1d\x21\x00"
                   length:sizeof("\x1d\x21\x00") - 1];    // Cancel Expansion - Reference Star Portable Printer Programming Manual
	
	[commands appendData:[@"\n" dataUsingEncoding:NSASCIIStringEncoding]];
	
	[commands appendBytes:"\x1b\x61\x00"
                   length:sizeof("\x1b\x61\x00") - 1];    // Left Alignment
    
    	[commands appendData:[@"\n"
						  " -------------------------------\n"
						  dataUsingEncoding:NSASCIIStringEncoding]];
	
	[commands appendBytes:"\x1d\x21\x22" length:sizeof("\x1d\x21\x22") - 1];    // Width and Height
	[commands appendBytes:"\x1b\x45\x01" length:sizeof("\x1b\x45\x01") - 1];    // Set Emphasized Printing ON
    	[commands appendData:[@" 999 99 99\n" dataUsingEncoding:NSASCIIStringEncoding]];
    	[commands appendBytes:"\x1b\x45\x00" length:sizeof("\x1b\x45\x00") - 1];    // Set Emphasized Printing OFF
	[commands appendBytes:"\x1d\x21\x00" length:sizeof("\x1d\x21\x00") - 1];    // Cancel Expansion
	
	[commands appendData:[@"    Section     Row      Seat   \n"
						  dataUsingEncoding:NSASCIIStringEncoding]];
	
    	[commands appendData:[@"\n\n\n\n\n" dataUsingEncoding:NSASCIIStringEncoding]];
	
    	return commands;
}