Re: Large over 100K pixel high ruler scroll view
Re: Large over 100K pixel high ruler scroll view
- Subject: Re: Large over 100K pixel high ruler scroll view
- From: Evadne Wu <email@hidden>
- Date: Wed, 24 Aug 2011 05:29:06 +0800
I think, if you can use CATiledLayer, things will be a lot more easier. -ev
On Aug 24, 2011, at 5:18 AM, Julie Porter wrote:
> I work with scans of 10 tune Nickelodeon player piano rolls. These can be over 100 yards long when unrolled. My roll images when uncompressed can be 100,000 plus pixels by 2800 pixels. In actual practice the images are made of lines, not pixels.
>
> To read these I have programs written in postscript or carbon. My carbon application is getting long in the tooth.
>
> I have been reading over this list and the Cocoa program examples and documentation over the last 3 months.
>
> I found the NSRulerView sample application. At issue is that interface builder will only let me make a view that is 10000 pixels.
>
> Searching the web I see suggestions to do this programmatically. I am not sure where the code to create the window would go. I am finding that Cocoa, especially V2.0 obfuscates things, especially where to put things. What examples I have are base on images, but I am drawing lines, based on the scroller positions.
>
> I already have postscript and carbon code that tiles the images, So if I have the first set of lines to draw and the last set of lines to draw, I can find these in the file and draw them.
>
> How do I do setup the ruler and scrollviews programetically without interface builder?
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