Re: - (NSPoint)convertBaseToScreen:(NSPoint)point
Re: - (NSPoint)convertBaseToScreen:(NSPoint)point
- Subject: Re: - (NSPoint)convertBaseToScreen:(NSPoint)point
- From: Kyle Sluder <email@hidden>
- Date: Thu, 26 Jan 2012 13:18:04 -0800
On Thu, Jan 26, 2012 at 11:41 AM, koko <email@hidden> wrote:
> The docs say that - (NSPoint)convertBaseToScreen:(NSPoint)point is deprecated and to use - (NSRect)convertRectToScreen:(NSRect)aRect
>
> So, does one create a rect whose origin is the point in question and whose size is zero?
Just like any other rect: use NSMakeRect(), or just set the fields directly.
But more importantly, read the section of the AppKit release notes
named "Changes for Resolution Independence":
http://developer.apple.com/library/mac/#releasenotes/Cocoa/AppKit.html
In Mac OS X 10.7, the "base" coordinate system doesn't exist anymore;
windows and screens share the same coordinate system, modulo the
origin. All -[NSWindow convertRectToScreen:] does is translate the
passed-in rect by the window's origin. No scaling is required.
So you could just as easily translate a point yourself:
NSWindow window = /* ...*/
NSPoint pointInWindowSpace = /* ... */;
NSPoint pointInScreenSpace;
NSPoint windowOrigin = [window frame].origin;
pointInScreenSpace.x = pointInWindowSpace.x - (windowOrigin.x);
pointInScreenSpace.y = pointInWindowSpace.y - (windowOrigin.y);
Nonetheless, you should file a radar asking for -[NSWindow
convertPoint{To,From}Screen:]. This is precisely the kind of tedious
code that I find myself screwing up on a regular basis. Heck, I
might've even screwed it up in this email.
> NSRect cr = [keyWindow convertRectToScreen:r];
>
> The last line throws one error and a warning:
>
> No viable conversion from 'id' to 'NSRect' (aka '_NSrect')
> instance method '-convertRectToScreen' not found (return type defaults to 'id')
>
> But -convertRectToScreen ins in the NSWindow reference.
>
> So what am I missing?
Are you not building with the 10.7 SDK? Or is your Maximum Deployment
Version set to 10.6 or earlier?
--Kyle Sluder
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