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PONSOutlineView: Cells are initially too narrow
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  1. PONSOutlineView: Cells are initially too narrow
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    copied!<p>I did a little demo to isolate a problem I faced in a Project.</p> <p>When I start the Application, the Cells of the <code>NSOutlineView</code> are too narrow for the text:</p> <p><img src="https://i.stack.imgur.com/TsGPs.png" alt="Initial View"></p> <p>Then I resize the window with the mouse, making it even narrower than the contents of the <code>NSOutlineView</code>:</p> <p><img src="https://i.stack.imgur.com/pteff.png" alt="Narrowed View"></p> <p>When I now enlarge the window again, the problem is cured. From now on the outline works as expected:</p> <p><img src="https://i.stack.imgur.com/4QU0f.png" alt="Re-Enlarged View"></p> <p>This is the main method of my AppDelegate:</p> <pre><code>- (void)applicationDidFinishLaunching:(NSNotification *)notification { NSRect frame = NSMakeRect(0., 0., 400., 300.); NSUInteger styleMask = NSTitledWindowMask | NSClosableWindowMask | NSResizableWindowMask; _mainWindow = [[NSWindow alloc] initWithContentRect:frame styleMask:styleMask backing:NSBackingStoreBuffered defer:NO]; _mainWindow.title = @"Outline"; NSScrollView *leftScrollView = [[NSScrollView alloc] init]; leftScrollView.hasVerticalScroller = YES; leftScrollView.hasHorizontalScroller = NO; leftScrollView.drawsBackground = NO; leftScrollView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable; _mainWindow.contentView = leftScrollView; NSOutlineView *outlineView = [[NSOutlineView alloc] init]; NSTableColumn *outlineColumn = [[NSTableColumn alloc] initWithIdentifier:@"Menu Item"]; [outlineView addTableColumn:outlineColumn]; outlineView.outlineTableColumn = outlineColumn; outlineView.selectionHighlightStyle = NSTableViewSelectionHighlightStyleSourceList; outlineView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable; outlineView.headerView = nil; _outlineDataSourceAndDelegate = [[MROutlineDataSourceAndDelegate alloc] init]; outlineView.dataSource = _outlineDataSourceAndDelegate; outlineView.delegate = _outlineDataSourceAndDelegate; leftScrollView.documentView = outlineView; [_mainWindow makeKeyAndOrderFront:NSApp]; } </code></pre> <p>Can anyone please explain that odd behavior?</p>
 

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