ftp.nice.ch/pub/next/science/mathematics/nxyplot.NIHS.bs.tar.gz#/nxyplot/Source/ScrollWindow.m

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#import "ScrollWindow.h"
#import <appkit/nextstd.h>
#import <appkit/ScrollView.h>

@implementation ScrollWindow

- becomeScrollWindow
{
  id newContent;

//  newContent = [ScrollView new];
  newContent = [[ScrollView alloc] init];
  [newContent setAutosizing:(NX_WIDTHSIZABLE | NX_HEIGHTSIZABLE)];
  [newContent setDocView:[self setContentView:newContent]];
  return self;
}

- setMinFrameSize:(NXSize) newSize
{
  minFrameSize = newSize;
  return self;
}

- windowWillResize:sender toSize:(NXSize *)frameSize
{
  NXRect contentRect, maxFrameRect;

  [[[self contentView] docView] getBounds:&contentRect];
  [ScrollWindow getFrameRect:&maxFrameRect
                forContentRect:&contentRect style:[self style]];
  frameSize->width = MIN(frameSize->width, maxFrameRect.size.width);
  frameSize->height = MIN(frameSize->height, maxFrameRect.size.height);
  frameSize->width = MAX(frameSize->width, minFrameSize.width);
  frameSize->height = MAX(frameSize->height, minFrameSize.height);
  return self;
}

- windowDidResize:sender
{
  NXRect contentRect, maxFrameRect;

  [[[self contentView] docView] getBounds:&contentRect];
  [ScrollWindow getFrameRect:&maxFrameRect
                forContentRect:&contentRect style:[self style]];
  if ((frame.size.width < maxFrameRect.size.width)
       || (frame.size.height < maxFrameRect.size.height))
    [[[self contentView] setHorizScrollerRequired:YES] setVertScrollerRequired:YES];
  else
    [[[self contentView] setHorizScrollerRequired:NO] setVertScrollerRequired:NO];

  return self;
}

@end

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.