> On Sep 23, 2013, at 3:02 PM, Steve Mills <smi...@makemusic.com> wrote: > > We have a situation where we want to call scrollPoint on our view that's in a > scroll view. It appears that scrollPoint does not immediately cause the > scroll to happen. Right after we call scrollPoint, we need to ask the view > for its new scroll location to see if it actually changed. At this point, it > has not scrolled yet, so it breaks this code that used to work in Carbon.
Yeah, NSScrollView animations are annoying and unpredictable. Is suggest filing a radar asking for better control over and feedback about them. > > It appears that scrollPoint is causing an animation to be queued, even though > we tried to disable it like so: > > [CATransaction begin]; > [CATransaction setValue:(id)kCFBooleanTrue > forKey:kCATransactionDisableActions]; > [CATransaction setAnimationDuration:0]; > [view scrollPoint:pos]; > [CATransaction commit]; Did you try wrapping your call to -scrollPoint: in an NSAnimationContext with allowsImplicitAnimation=NO? > > The animation is in our way. I found a workaround that seems to work, which > is to simply call this instead of all that: > > [[[view enclosingScrollView] contentView] setBoundsOrigin:pos]; > > Is this a viable workaround? Can anyone foresee any problems with it? Is > there a better way to make scrollPoint work *right now*? Since scrolling is defined to be performed by translating the bounds.origin of the clip view, this should be fine. But I wonder if it will interfere with your previously mentioned pseudo-scrolling (which would be another reason to abandon that approach and adopt one that doesn't fight the framework). --Kyle Sluder _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
