Saving entire NSView contents, which is inside an NSScrollView

Question

I'm trying to save contents of an NSView as an image, but, only the image visible inside the scrollview is saved.

Here is the actual image loaded in the view: .

But this is how I'm able to save the image:

Is there any way to save the entire image in the NSView?

This is how I'm saving my NSView subclass:

- (void)save
{
    [self lockFocus];
    NSBitmapImageRep* rep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:[self bounds]];  
    [self unlockFocus];

    NSData* data = [rep representationUsingType:NSPNGFileType properties:nil];

    NSString* string = NSHomeDirectory();
    NSString* pth1 = [string stringByAppendingPathComponent:@"ttx.png"];

    [data writeToFile:pth1 atomically:YES];
}

This method is in the View i want to save.

Answer 1

Use -[NSView cacheDisplayInRect:toBitmapImageRep:]

NSBitmapImageRep* rep = [self bitmapImageRepForCachingDisplayInRect:self.bounds];
[self cacheDisplayInRect:self.bounds toBitmapImageRep:rep];