NM that last part, I found the plugin. For the archives, it's at
http://brockerhoff.net/src/RBSplitView.ibplugin.zip
Sorry, all, for the multiple replies-to-self here :)
John Stiles wrote:
Oh, there was a fourth problem actually. This doesn't work in all cases:
NSRect changedBounds = [changedContentView bounds];
It should have been
NSRect changedBounds = [changedContentView documentVisibleRect];
Also, I switched to RBSplitView to work around issue 3.
Is there an IB3 plugin for RBSplitView? I've seen web posts indicating
that it exists but I can't find it.
John Stiles wrote:
I found thee things which, in conjunction, solve the problem:
1 - Rewrite synchronizedViewContentBoundsDidChange as follows.
-scrollToPoint seems broken. (I am clamping the scroll view to the
left side on purpose)
- (void)synchronizedViewContentBoundsDidChange:(NSNotification
*)notification
{
// get the changed content view from the notification
NSView *changedContentView=[notification object];
// get the origin of the NSClipView of the scroll view that
// we're watching
NSRect changedBounds = [changedContentView bounds];
[[self contentView] scrollRectToVisible:NSMakeRect(0,
changedBounds.origin.y, 1, changedBounds.size.height)];
// we have to tell the NSScrollView to update its scrollers
[self reflectScrolledClipView:[self contentView]];
}
2 - Disable non-contiguous layout. This seemed to cause the view to
scroll to the wrong place.
3 - An NSSplitView was causing my layout to shift around if it was
collapsed all the way, making things look more broken than they
were... grr. I don't know how to work around this problem without a
big kludge; we've filed a radar on AppKit back in 2006 with no word
yet. (rdar://4399290 - A cocoa view that is shrunk to a degenerate
rectangle loses its position & size)
John Stiles wrote:
Has anyone gotten this example to work in Leopard?
http://developer.apple.com/documentation/Cocoa/Conceptual/NSScrollViewGuide/Articles/SynchroScroll.html
I just tried it and I'm having terrible luck. The view is just
blanking itself out immediately. I can get it to sort-of work if I
replace -scrollToPoint: with calling -scrollRectToVisible: on the
document, but it seems to screw up sometimes and go to the wrong
location. It's really weird.
My use case is fairly simple—I just want line numbers to the left of
a text view—and the code is basically unchanged (although I've tried
tweaking it a few times, with mixed results, never 100% working).
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