Re: Rotate a standard Cocoa control?
Re: Rotate a standard Cocoa control?
- Subject: Re: Rotate a standard Cocoa control?
- From: Robert Martin <email@hidden>
- Date: Fri, 08 May 2015 16:08:57 -0400
Graham,
Thanks so much for posting this. I’ve always wondered how to go about doing this kind of thing, but never had the actual need in a project to prod me to figure it out. Your app and code are terrific at making things clear.
Thanks,
Rob
> On May 7, 2015, at 11:54 PM, Graham Cox <email@hidden> wrote:
>
>
>> On 8 May 2015, at 6:11 am, Jerry Krinock <email@hidden> wrote:
>>
>> I would like to subclass NSSlider to make it work like the "volume control" on a mid 19th-century radio receiver. That is, I want the minimum value to be at 7 o'clock, and the maximum value to be at 5 o'clock.
>
>
> Jerry,
>
> Since I found the problem interesting and also potentially useful for something of my own down the track, I thought I’d have a quick go at making a control like this.
>
> It’s here: http://apptree.net/code/GCVolumeControl.zip
>
>
> It’s fairly basic, though it does what you want with the positioning and stopping on tick marks, etc. I subclassed NSControl rather than NSSlider but I kept some of the same method names so it’s easy to swap in. The knob itself is just a PDF resource which I created using my own Artboard app (graphic and original file included). Obviously you can change this to anything you like - my quick and dirty image is likely a bit short of your needs.
>
> Hopefully you find it useful, and at least having the source you can customise it easily compared to standard classes. No licensing issues from me either.
>
> —Graham
>
>
>
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