Cocoa. Create NSTextView, add an NSString to it and print - cocoa

Question

I have a window with a button for printing receipts. What I need to do is to create a simple NSTextView, add an NSString to it (at least something like "Hello World") and print it without displaying NSTextView on the window.
Here is what I currently have:
NSTextView *textView = [[NSTextView alloc] init];
NSString *text = #"testing";
[textView setEditable:true];
NSRange range = NSMakeRange( 0, [[textView string] length]);
[textView setSelectedRange:range];
[[[textView textStorage] mutableString] appendString:text];
NSPrintOperation *printOperation;
printOperation = [NSPrintOperation printOperationWithView:textView];
[printOperation runOperation];
when I run it, I see printing dialog, but preview is empty.
When I change printOperationWithView:textView]; from textView to one of the existing views on my window, it prints ok.
The main thing is.. I don't want to display the view after I click Print button. Ideally I would like to print the text, not the view.

Answer 1

Have you tried using -initWithFrame with a nonzero rect?
NSTextView *textview = [[NSTextView alloc] initWithFrame:NSMakeRect(0, 0, 468, 648);
(468 x 648 would make it fit an A4 sheet with 1-inch margins.)

Answer 2

Here is an implementation which works in an NSDocument subclass. Modify it to suit your needs.
- (NSPrintOperation *)printOperationWithSettings:(NSDictionary<NSString *,id> *)printSettings error:(NSError * _Nullable __autoreleasing *)outError
{
NSPrintInfo * printInfo = [self printInfo];
printInfo.topMargin = 15.0;
printInfo.leftMargin = 10.0;
printInfo.rightMargin = 10.0;
printInfo.bottomMargin = 15.0;
printInfo.verticallyCentered = NO;
NSRect bounds = printInfo.imageablePageBounds;
NSTextView * printView = [[NSTextView alloc] initWithFrame:bounds];
printView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
[printView.textStorage appendAttributedString:self.attributedStringRepresentation];
return [NSPrintOperation printOperationWithView:printView printInfo:printInfo];
}

Answer 3

Have you tried just:
[textView print];

Answer 4

This is very good. Just one more enhancement. In order for the print out not to be centered, and to fill up the page correctly, pass printInfo in as a parameter.
NSPrintOperation *printOperation;
NSPrintInfo *pInfo = [[NSPrintInfo alloc] init];
[pInfo setBottomMargin:50];
[pInfo setTopMargin:50];
[pInfo setVerticallyCentered:false];
printOperation = [NSPrintOperation printOperationWithView:textView printInfo:pInfo];
[printOperation runOperation];