Re: Is NSScaleProportionally buggy?

FROM : Serge Meynard
DATE : Wed Apr 06 18:35:25 2005

On Apr 5, 2005, at 17:20, Brian O'Brien wrote:
> I 'think' I've run across a bug in NSImageView.
>
> When my NSImageView window is resized the image I'm displaying in this
> window resizes correctly as long as I'm
> making the image smaller than the actual image.  If I make the window
> larger than the actual image the image will
> not get any larger.  ie decimation works but interpolation doesn't.
> Is it because I've forgotten or am unaware of a method that needs to
> be called so interpolation works?
>
> Hate to say it but this, but is a bug that should have been fixed a
> long time ago?
>
> Code fragment:
>
>
>        windowedImage = [[NSBitmapImageRep alloc]
> initWithBitmapDataPlanes:planes
>                                                               
> pixelsWide:width
>                                                               
> pixelsHigh:height
>                                                             
> bitsPerSample:8
>                                                           
> samplesPerPixel:3
>                                                                 
> hasAlpha:NO
>                                                                 
> isPlanar:NO
>                                                           
> colorSpaceName:NSCalibratedRGBColorSpace
>                                                               
> bytesPerRow:bytesPerRow
>                                                             
> bitsPerPixel:24];
>        NSImage *img = [[NSImage alloc] init];
>        [img addRepresentation:windowedImage];
>        [self setImage:img];
>        [img release];
>        [super setImageAlignment:NSImageAlignBottomLeft];
> //NSImageAlignCenter;
>        [super setImageScaling:NSScaleProportionally]; //NSScaleNone
> or NSScaleToFit or NSScaleProportionally
>        [super setImageFrameStyle:NSImageFramePhoto];
>


<http://www.cocoabuilder.com/archive/message/cocoa/2005/2/8/127770>