Re: NSRulerView and inches
Re: NSRulerView and inches
- Subject: Re: NSRulerView and inches
- From: Graham Cox <email@hidden>
- Date: Fri, 22 Jan 2010 14:42:09 +1100
On 22/01/2010, at 2:13 PM, Kyle Sluder wrote:
> But that's different from blithely drawing the
> resize handles at whatever scale AppKit has calculated for you.
I didn't say I was. AppKit doesn't decide on the scale, the user does. Appkit merely sets up a transform to suit. The resize handles are carefully drawn in accordance with the scale according to the rules I want to apply - in my case at 33% of the zoom scale, within certain limits. It would also be possible to draw them always at the same scale (1:1) or at one of several fixed sizes if I wanted. At no point is anything not under the control of the programmer.
> My preferred solution: ditch NSRulerView. :)
That does seem to me to be throwing the baby out with the bathwater. I guess if I wanted to heavily customise NSRulerView it might be easier to start from scratch, but the built-in class is not bad as far as it goes, and does do a great deal of really tedious work for you.
So, what it boils down to is:
a) roll your own view scaling/zooming and you have to implement your own rulers, or:
b) use the built-in view scaling/zooming and you have to implement your own resize handles or other "scale-proof" UI widget drawing.
Seems as broad as it's long to me, though I still favour (b)!
--Graham
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