Re: Transparent IKImageBrowserView
Re: Transparent IKImageBrowserView
- Subject: Re: Transparent IKImageBrowserView
- From: Steve Christensen <email@hidden>
- Date: Fri, 23 Jul 2010 06:39:00 -0700
This worked for me:
NSColor* browserBackgroundColor = [NSColor colorWithCalibratedWhite:0.10 alpha:0.60];
[_effectsBrowser setValue:browserBackgroundColor forKey:IKImageBrowserBackgroundColorKey];
Are you sure that it's not working for you? Perhaps a superview has a non-transparent background itself and that's what you're seeing?
On Jul 23, 2010, at 12:04 AM, Rimas M. wrote:
> Hello,
>
> As far as I know, it is still impossible to have transparent
> background of IKImageBrowserView?
> I am writing to be 100% sure for that. Maybe I have missed something?
>
> All my attempts to create transparent IKImageBrowserView failed.
>
> I have tried:
>
> * (1) setting background color for IKImageBrowserView as itself using
> IKImageBrowserBackgroundColorKey. That works well until color alpha is
> equal to 1.0. Bellow that color is ignored (color does not change) or
> background is changed back to default white. Or... looks like given
> color is composited on a white background.
> * setting CALayer as IKImageBrowserView's backgroundLayer:
> ** (2) using property backgroundColor of CALayer. No background
> transparency, scrolling ghosts, misc garbages during start-up - some
> parts of menubar, other windows are visible for a few moments after
> program launch.
> ** using custom drawing ( -
> (void)drawInContext:(CGContextRef)context ) in CALayer subclass:
> *** (3) drawing transparent image to fill background. No
> transparency for IKImageBrowserView, some strange ghosts while
> scrolling.
> *** (4) filling background with transparent color (alpha < 1.0).
> Behaves close to previous variant. "Size" of ghosts depends on alpha
> value.
>
> On 3 and 4, flushing context or telling it to clear visible rect makes no sense.
>
> Best Regards,
>
> Rimas M.
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