/*

     File: VerticalScrollAspect.m

 Abstract: This demonstrates the simple case of an NSScrollView with a vertical scroller containing an NSTextView that grows vertically to fit the text and wraps the text to its width, rewrapping if the width changes.

  Version: 1.2

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 */

#import "VerticalScrollAspect.h"

@implementation VerticalScrollAspect

/* The text container will always be as wide as the view it's attached to.

 */

- (NSTextContainer *)textContainerForLayoutManager:(NSLayoutManager *)layoutManager {

    NSTextContainer *textContainer = [super textContainerForLayoutManager:layoutManager];

    [textContainer setWidthTracksTextView:YES];

    [textContainer setHeightTracksTextView:NO];

    return textContainer;

}

/* The text view will automatically resize itself to be as tall as necessary, and it can be externally resized (i.e. by its enclosing view) to be wider or narrower.

 */

- (NSTextView *)textViewForTextContainer:(NSTextContainer *)textContainer {

    NSTextView *view = [super textViewForTextContainer:textContainer];

    [view setHorizontallyResizable:NO];

    [view setVerticallyResizable:YES];

    [view setAutoresizingMask:NSViewWidthSizable];

    return view;

}

- (NSString *)title {

    return NSLocalizedString(@"Wrapping Scrolling Text", @"Display name for VerticalScrollController.");

}

/* The text view is contained within a scroll view with a vertical scroller.

 */

- (NSView *)containerView {

    if (!scrollView) {

        NSTextView *documentView = self.textView;

        scrollView = [[NSScrollView alloc] initWithFrame:[documentView frame]];

        [scrollView setBorderType:NSBezelBorder];

        [scrollView setHasVerticalScroller:YES];

        [scrollView setHasHorizontalScroller:NO];

        [scrollView setAutohidesScrollers:YES];

        [scrollView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];

        [scrollView setDocumentView:documentView];

    }

    return scrollView;

}

- (void)dealloc {

    [scrollView release];

    [super dealloc];

}

@end