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Subview bounds resizing when frame resizes
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Subview bounds resizing when frame resizes


  • Subject: Subview bounds resizing when frame resizes
  • From: Steve Weller <email@hidden>
  • Date: Sun, 2 Mar 2008 16:03:38 -0800


I have a custom view with a custom subview. I can't seem t make the bounds of the subview stick. When the view changes the subview's frame, I want the subview's bounds to stay exactly as I set them the first time. The whole point of having this subview is to have a separate coordinate system.


I create the subview like this:

// Add page into our view
pageView = [[BTPPPageView alloc] initWithFrame:[self pageFrame]];
[pageView setBounds:NSMakeRect(0,0,pageBoundsSize.width,pageBoundsSize.height)];
[self addSubview:pageView];


and I reposition the subview's frame when the view's frame changes:

[pageView setFrame:[self pageFrame]];

The subview bounds are set correctly at the start, but if I make the subview's frame larger, the bounds are scaled larger too. I thought from this in the NSView docs that the subview's bounds would stay fixed:

If your view does not use a custom bounds rectangle, this method also sets your view bounds to match the size of the new frame. You specify a custom bounds rectangle by calling setBounds:, setBoundsOrigin:, setBoundsRotation:, or setBoundsSize:explicitly. Once set, NSView creates an internal transform to convert from frame coordinates to bounds coordinates.

I am using setBounds, so why is it not preventing the scaling? My view has the Autoresizes subviews flag off. The view is created in IB, the subview in code, as above.

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