Re: [hoc-users] Information on how to build a custom NSView subclass

[Joe J. <dar...@gm...>]

The import worked beautifully. Thanks. Now, on to greater drawing goodness!

On 11/12/06, David Christensen <dw...@dw...> wrote:
> > OK, I had to remove the NSView. prefix from the bounds call to get
> > that line to compile.
>
> Did you include the import statement for NSView explicitly?  This may
> also be due to me forgetting to specify the import as qualified... :-)
>
> > However, the next line tells me that :
> >     EPView.hs:20:30: Not in scope: `set'
> > And I'm not sure why it's not in scope because set IS a method of
> > AppKit.NSColor.
>
> This is an exporting issue due to the fact that there are multiple
> classes in the Cocoa hierarchy which define a "set" selector.  In
> HOC, all selectors are of the same type; for these duplicate
> selectors there is no way to distinguish which selector you meant by
> name and type alone, so by default these are not exported.
>
> You can either import the module explicitly or import qualified to
> provide a different namespace for that selector to live:
>
> Either:
>
>  > import AppKit
>  > import qualified AppKit.NSColor as NSColor
>  > ...
>  > blackColor # NSColor.set
>
> Or:
>
>  > import AppKit
>  > import AppKit.NSColor (set)
>  > ...
>  > blackColor # set
>
> ----
> David Christensen
>