Re: Keeping grayscale image grayscale

2011-10-19 Thread Ken Ferry
On Tue, Oct 18, 2011 at 6:26 AM, Jonathan Taylor j.m.tay...@durham.ac.ukwrote: Belated thanks for the various replies to my question. I'm working through the posted code and links now and looking at what I can learn from it. One query though: On 12 Oct 2011, at 16:42, Heinrich Giesen wrote:

Re: How to get key code from SysDefined Carbon Event

2011-10-19 Thread Jerry Krinock
On 2011 Oct 18, at 21:58, Ken Thomases wrote: Should in what sense? It's a type indicator, that's why it starts with type. Well, it's an enum symbol in a system header. But forget it. I made a mistake there. James was correct to begin with. It should be typeEventHotKeyID. Sorry.

ARC + return of autoreleased CFType

2011-10-19 Thread John Pannell
Hi all- I've got a category on NSColor to return a CGColor value. Source looks like this: - (CGColorRef)CGColor { NSColor *colorRGB = [self colorUsingColorSpaceName:NSCalibratedRGBColorSpace]; CGFloat components[4]; [colorRGB getRed:components[0] green:components[1]

Re: ARC + return of autoreleased CFType

2011-10-19 Thread Roland King
Following Cocoa convention you'd want to cast it to what and autorelease it? CGColorRef isn't toll-free bridged with anything. If you have been casting it to id and autoreleasing it you might have gotten away with that before but I don't think it's documented anywhere you can do that with

Re: ARC + return of autoreleased CFType

2011-10-19 Thread Ken Thomases
On Oct 19, 2011, at 8:04 AM, John Pannell wrote: I've got a category on NSColor to return a CGColor value. Source looks like this: - (CGColorRef)CGColor { NSColor *colorRGB = [self colorUsingColorSpaceName:NSCalibratedRGBColorSpace]; CGFloat components[4]; [colorRGB

Re: ARC + return of autoreleased CFType

2011-10-19 Thread Wade Tregaskis
Following Cocoa convention you'd want to cast it to what and autorelease it? CGColorRef isn't toll-free bridged with anything. If you have been casting it to id and autoreleasing it you might have gotten away with that before but I don't think it's documented anywhere you can do that with

Re: ARC + return of autoreleased CFType

2011-10-19 Thread Kyle Sluder
On Oct 19, 2011, at 6:24 AM, Roland King r...@rols.org wrote: Following Cocoa convention you'd want to cast it to what and autorelease it? CGColorRef isn't toll-free bridged with anything. If you have been casting it to id and autoreleasing it you might have gotten away with that before but

Re: Zooming a view, that is contained in an NSScrollView

2011-10-19 Thread Nick
Thanks a lot Graham and John! That did it :-) 2011/10/18 Graham Cox graham@bigpond.com: On 18/10/2011, at 5:59 AM, John Pannell wrote: Hi Nick- There is some composition of views needed to make this work.  Within GCDrawKit, find the GCZoomView class… make your custom view a subview

Re: ARC + return of autoreleased CFType

2011-10-19 Thread John Joyce
Check the nice clear tutorial at http://www.mikeash.com/pyblog/friday-qa-2011-09-30-automatic-reference-counting.html It spells out how to handle CF types in ARC. On Oct 19, 2011, at 9:52 AM, Wade Tregaskis wrote: Following Cocoa convention you'd want to cast it to what and autorelease it?

How to get rid of blinking?

2011-10-19 Thread Nick
Hello Could you advice me how to get rid of blinking in the following code? This is an NSView's subclass, I am trying to draw a rectangle for zooming (theoretically a user is supposed to be able to zoom in a piece of a view, by selecting a rectangle area to zoom. The problem is that when the mouse

Re: How to get rid of blinking?

2011-10-19 Thread Fritz Anderson
On 19 Oct 2011, at 12:41 PM, Nick wrote: Could you advice me how to get rid of blinking in the following code? This is an NSView's subclass, I am trying to draw a rectangle for zooming (theoretically a user is supposed to be able to zoom in a piece of a view, by selecting a rectangle area to

Re: How to get rid of blinking?

2011-10-19 Thread Mike Abdullah
On 19 Oct 2011, at 18:41, Nick wrote: Hello Could you advice me how to get rid of blinking in the following code? This is an NSView's subclass, I am trying to draw a rectangle for zooming (theoretically a user is supposed to be able to zoom in a piece of a view, by selecting a rectangle

Re: How to get rid of blinking?

2011-10-19 Thread Nick
Thank you 2011/10/19 Fritz Anderson fri...@manoverboard.org On 19 Oct 2011, at 12:41 PM, Nick wrote: Could you advice me how to get rid of blinking in the following code? This is an NSView's subclass, I am trying to draw a rectangle for zooming (theoretically a user is supposed to be

ANN: Webcast tomorrow on CouchDB / Couchbase Mobile

2011-10-19 Thread Jens Alfke
FYI, I’m giving a live webcast with O’Reilly tomorrow about my current work project — Couchbase Mobile. We’ve taken the tangy Apache CouchDB NoSQL database engine, wrapped it in delicious Objective-C APIs, and packaged it in a convenient no-mess framework that’s easy to drop into your iOS app.

Re: Custom NSArrayController that manages its own array?

2011-10-19 Thread Jens Alfke
On Oct 18, 2011, at 5:01 PM, Keary Suska wrote: Well, entries in this case is redundant. If you subclass is designed to manage an array of entries, then its content would simply be the array itself. There is no need to abstract it out by the key. In fact, it is a code smell to do so. The

Re: Custom NSArrayController that manages its own array?

2011-10-19 Thread Jens Alfke
On Oct 18, 2011, at 6:44 PM, Quincey Morris wrote: Absolutely. I'll add here that NSArrayControllers are basically glue, and not even (exactly) necessary glue. You can connect a table view directly to a data model, without using an array controller. All the array controller does is to add

Re: Code signing issues

2011-10-19 Thread Gideon King
I had not, but now I have - it made no difference - I still got the same cryptic error message. Regards Gideon On 18/10/2011, at 11:29 AM, Graham Cox wrote: On 18/10/2011, at 12:27 PM, Gideon King wrote: • The system interprets the exit status and attempts to obtain a valid receipt.

Re: How to get rid of blinking?

2011-10-19 Thread Jim McGowan
-(void)mouseDragged:(NSEvent *)theEvent { NSPoint locationOnCanvas = [self convertPoint:[theEvent locationInWindow] fromView:nil]; if(currentMouseMode == MMZooming) { *[self display]; //clear the previous rectangle [self lockFocus]; [self

Re: Stepwise articles

2011-10-19 Thread Scott Anguish
On Oct 17, 2011, at 2:23 PM, Charles Srstka wrote: On Oct 17, 2011, at 4:37 AM, Mark Taeery wrote: Hi all, does anybody have a copy of the following article: http://www.stepwise.com/Articles/Technical/MemoryManagement.html archive.org appears not to have it. Thanks, Mark

Enter/exit full screen notification

2011-10-19 Thread Ryan Joseph
Is there an effective way to be notified when the system goes into full screen mode (on 10.6 and 10.7)? The only information I found on Google was from 2005 and earlier including Carbon event handlers which are deprecated now. I ask because I have a user agent app (which floats above all

Re: Stepwise articles

2011-10-19 Thread Gregory Casamento
I honestly wish that he had left them up or had allowed them to be Archived. Those articles were invaluable back in the NeXT/OPENSTEP days and they would certainly be valuable today. GC On Mon, Oct 17, 2011 at 2:23 PM, Charles Srstka cocoa...@charlessoft.com wrote: On Oct 17, 2011, at 4:37 AM,