Vertical NSplitViews buggy in Lion?
Vertical NSplitViews buggy in Lion?
- Subject: Vertical NSplitViews buggy in Lion?
- From: Martin Hedenfalk <email@hidden>
- Date: Fri, 23 Sep 2011 13:03:51 +0200
Hi,
I'm having problems with vertical NSSplitViews in Lion. I'm dynamically adding subviews and nesting horizontal and vertical NSSplitViews. I don't get these problems in Snow Leopard.
Splitting horizontally seems to work fine, but splitting vertically causes several problems:
- divider width is (sometimes) way too large
- sometimes the divider is not shown at all
- splitting time increases with number of subviews (10s with ~20 subviews)
- the subview frames gets messed up and the following is printed in the console (here the two subviews overlap):
2011-09-23 11:54:28.745 splits[52596:707] <NSSplitView: 0x1003c8c80>: -resizeSubviewsWithOldSize: was invoked and left the subview frames in an inconsistent state:
2011-09-23 11:54:28.746 splits[52596:707] Split view bounds: {{0, 0}, {208, 215}}
2011-09-23 11:54:28.746 splits[52596:707] Subview frame: {{0, 0}, {94, 215}}
2011-09-23 11:54:28.747 splits[52596:707] Subview frame: {{89, 0}, {119, 215}}
2011-09-23 11:54:28.747 splits[52596:707] The subview frames are not in the same order as the subviews array. NSSplitView requires that these orders be kept consistent, otherwise behavior is undefined.
I've made a minimal test project that shows the issue.
It's available at http://bzero.se/splits.zip.
This code does not use a delegate for the split view, so it can't be that I'm doing something weird in [splitView:resizeSubviewsWithOldSize:].
The core of the code is the method that splits the content views (which contain a single NSTextView):
- (NSViewController *)splitView:(NSViewController *)viewController
withView:(NSViewController *)newViewController
vertically:(BOOL)isVertical
{
NSView *view = [viewController view];
NSView *newView = [newViewController view];
NSSplitView *split = (NSSplitView *)[view superview];
/* If there is only one subview in the split, convert it to the desired orientation. */
if ([[split subviews] count] == 1 && [split isVertical] != isVertical)
[split setVertical:isVertical];
if ([split isVertical] == isVertical) {
/* Same orientation, just add another view to this split. */
[split addSubview:newView];
} else {
/*
* Different orientation, replace the view with a new split view
* containing the new and old content views.
*/
NSSplitView *newSplit = [[NSSplitView alloc] initWithFrame:[view frame]];
[newSplit setVertical:isVertical];
[newSplit setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
[newSplit setAutoresizesSubviews:YES];
[split replaceSubview:view with:newSplit];
[newSplit addSubview:view];
[newSplit addSubview:newView];
[newSplit release];
}
[window makeFirstResponder:newView];
[views addObject:newViewController];
return newViewController;
}
Am I doing something wrong with the subviews?
TIA
.martin
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