with the fact that
ids come up all the time, and show some support for wanting a language where
the compiler can make more proofs for us.
Thanks
Tom Davie
* prove is a loaded term when it comes to objective-c, as the runtime can mess
up your compile time proof by dynamically switching things about
, and in fact collection access does not do this,
so it’s entirely possible to do things like:
id a = x[5];
[x removeObjectAtIndex:5];
[a crashMyProgram];
Tom Davie
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due to the increase of instruction and
pointer size.
Note, this was actually more significant on x86, where most of the mess caused
by CISC (like having bugger all registers) got sorted out.
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?
Maybe, maybe not. The flip side is that pointers are twice as large, so half
as many fit in cache.
And off when you do need to hit RAM you need to fetch more data.
Tom Davie
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stringByReplacingOccurancesOfString:@“→”
withString:@“⤜”].
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seen performance improve when
using ARC.
Tom Davie
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On 9 Sep 2013, at 10:18, Jean-Daniel Dupas devli...@shadowlab.org wrote:
Le 9 sept. 2013 à 09:58, Tom Davie tom.da...@gmail.com a écrit :
On 9 Sep 2013, at 09:44, Kyle Sluder k...@ksluder.com wrote:
Thirded. I thought I wouldn't like it. As soon as I didn't have to manage
retains
On 9 Sep 2013, at 11:49, Jean-Daniel Dupas devli...@shadowlab.org wrote:
Le 9 sept. 2013 à 11:33, Tom Davie tom.da...@gmail.com a écrit :
On 9 Sep 2013, at 10:18, Jean-Daniel Dupas devli...@shadowlab.org wrote:
Le 9 sept. 2013 à 09:58, Tom Davie tom.da...@gmail.com a écrit
to parse.
Yes. It's ridiculous that a lot of JSON APIs send ISO 8601-formatted (or
other human-readable format) dates.
Yes, it absolutely is, when no human is going to read them.
Tom Davie
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What I’m surprised no on has mentioned here is the trivial…
Remove the mutation methods. Make your object immutable, the referential
transparency will give you “free” parallelism. If you want a mutated version
of the object, create a new object.
Tom Davie
to select
the export type, and a UIPicker to select the export format.
That said, don’t get disheartened – a good, high quality data table is
something that would be very useful on iOS – just try to polish it up more!
Tom Davie
On 27 Aug 2013, at 04:56, Jason Gibbs iosmaniac...@gmail.com
either explicitly (by adding the casts in this expression), or implicitly, by
assigning the littorals to a variable of the desired type.
Tom Davie
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extra view.
Tom Davie
On 20 Aug 2013, at 01:48, dangerwillrobinsondan...@gmail.com wrote:
In general in 4.x add your constraints that will make a satisfiable layout,
then remove the ones you don't want.
The next one does less trying without asking but this one is not that bad if
people
is doing
very wrong here :D
Tom Davie
On 20 Aug 2013, at 09:55, Rick Mann rm...@latencyzero.com wrote:
I have filed literally hundreds of bug reports. I get the spirit of what
you're saying, but I'm so stressed from this project (and IB's hand in it),
and so demoralized from having my bugs
references.
Tom Davie
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suggested, it’s just unnecessary here.
Tom Davie
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On 18 Aug 2013, at 15:56, Gerriet M. Denkmann gerr...@mdenkmann.de wrote:
On 18 Aug 2013, at 20:09, Tom Davie tom.da...@gmail.com wrote:
On 18 Aug 2013, at 15:03, Gerriet M. Denkmann gerr...@mdenkmann.de wrote:
I just noticed that the program I use to create Png files creates files
, kCGBitmapAlphaInfoMask kCGAlphaLast);
CFRelease(rgbColorSpace);
… do some drawing …
CGImageRef img = CGBitmapContextCreateImage(ctx);
CGContextRelease(ctx);
return [[[NSImage alloc] initWithCGImage:img size:size] autorelease];
Thanks
Tom Davie
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and a turing complete program.
About the only use for regular expressions I can think of is asking NSScanner
to scan something that it doesn’t by default know about.
Tom Davie
On 10 Aug 2013, at 19:53, Jerry Krinock je...@ieee.org wrote:
On 2013 Aug 10, at 10:07, Boyd Collier bcolli...@cox.net wrote
On 10 Aug 2013, at 22:44, Keary Suska cocoa-...@esoteritech.com wrote:
On Aug 10, 2013, at 12:17 PM, Tom Davie wrote:
Heh, I’d actually argue that NSScanner is a much much better API to use here
(and in fact nearly everywhere). Regular expressions constrain you only to
regular grammars
is just terrible design.
Tom Davie
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.
Tom Davie
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for representing the 0x20th Unicode
character – that is “space”. It is not for representing other whitespace
characters like tab (%09) etc.
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The first gives me the following error:
Implicit conversion of Objective-C pointer type 'NSString *' to C pointer type
'CFStringRef' (aka 'const struct __CFString *') requires a bridged cast
Tom Davie
On Jul 27, 2013, at 8:31 PM, Matt Neuburg m...@tidbits.com wrote:
I feel like I've asked
A workaround would be to use +[NSFileHandle fileHandleForWritingAtURL: error:]
and -[NSFileHandle fileDescriptor] to get you a FD to use in C land.
Tom Davie
On Jul 17, 2013, at 11:26 PM, koko k...@highrolls.net wrote:
With this character:
LATIN SMALL LETTER U WITH DIAERESIS
Unicode: U
implementation.
Except that view is a read/write property, and this is a type error, because of
this situation:
UIVCSubclass *s = [[UIVCSubclass alloc] init...];
UIViewController *vc = s;
[vc setView:[[[UIView alloc] init] autorelease];
Tom Davie
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The best way is to write an application that's stable. The only reason
browsers started doing this was because they had to deal with 3rd party
code (e.g. flash) that was giving them a terrible reputation for
instability. If you're controlling the entire app, you have no reasonable
reason to do
On 13 Jun 2013, at 20:29, Daniele Margutti m...@danielemargutti.com wrote:
On 13 Jun 2013, at 20:05, Tom Davie tom.da...@gmail.com wrote:
The best way is to write an application that's stable. The only reason
browsers started doing this was because they had to deal with 3rd party code
. And we know that the issues are there – we just
choose to have them because the issues with the less leaky solutions are even
more severe (especially in C like languages).
Thanks
Tom Davie
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Please do
of cycles with a static analyser. Obviously you
couldn't detect all of them, but this would probably get a good way to stomping
on the you used an ivar here, and self retains the block, that's bad m'kay
bugs.
Thanks
Tom Davie
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cases, as I suggested!
Note – this does not make throwing blocks around without paying attention to
retain cycles inherently safe though, the compiler can not statically infer all
potential cycles.
Thanks
Tom Davie
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as it
might be.
Luckily, if you grab Landon Fuller's PLWeakCompatibility (and possibly Mike
Ash's MAZeroingWeakRef too), you'll be able to use __weak in your non-arc code
too.
Thanks
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Please do
the request in the first
place. I would consider that a much much much higher penalty than having to a
bit careful about retain cycles.
Thanks
Tom Davie
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delegate as a store for things that aren't
singletons, but only one of them is pointed at by your app delegate is also
horrific – you're just substituting one singleton for another.
Thanks
Tom Davie
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a chunk of global state lying around, but that's a whole
different story.
Thanks
Tom Davie
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;
with
someObject.someProperty = 56.9f;
and
{
float someIvar;
}
with
@property (assign, nonatomic) float someProperty;
So neither is really true.
Thanks
Tom Davie
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1) yes you could use the code you outlined to access the property
2) @property (assign, nonatomic) IBOutlet NSWindow *iWindow;
Note though to be careful about the assign tag there – you may well want that
to be a retain.
Thanks
Tom Davie
On 5 Apr 2013, at 15:06, Pax 45rpmli...@googlemail.com
a
subview of another view that's retained. The issue isn't quite as simple as
never retain IBOutlets.
Thanks
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with a couple
of other techs that supposedly make life easier, like CoreData and Storyboards).
Thanks
Tom Davie
On 15 Feb 2013, at 19:42, Maximilian Marcoll m...@dis.playce.info wrote:
Hi everyone!
I have a problem with bindings, or so it seems.
In my application, I need to programmatically
approach to this (though not one that's going to be as fast as a
custom deepCopy method), would be to implement your own NSCoder subclass. I
have in the past made keyed archivers which are substantially quicker than
apple's, and encode into substantially smaller byte formats.
Thanks
Tom Davie
On 21 Jan 2013, at 18:14, Dave d...@looktowindward.com wrote:
Hi All,
I have the following code:
if (class_RespondsToSelector(myClass,@selector(initWithManager:) == NO)
myObj = [[myClass alloc] init];
else
myObj = [[myClass alloc] initWithManager:sel]];
I get a warning
interact
the app while an open panel displaying.
But why?
What's the issue with the user pausing a video while an open panel happens to
be open?
Thanks
Tom Davie
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to start that
fade, and start it, with the open panel for the next video open?
Thanks
Tom Davie
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panel
is opened.
Wouldn't the correct thing in this state be to create a new project window
associated with the project document, and then fire of an open sheet for that
window so that it's only modal for the window?
Thanks
Tom Davie
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sat there, doing nothing,
with no significant windows open, yet in an inconsistent state, and requiring
modal interaction to sort it out?
If that's your assertion, then I'd suggest you have a deeper seated design bug.
Thanks
Tom Davie
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addObject:
3) Why use a mutable array at all? You could just use a constant array –
NSArray *filetype = [NSArray arrayWithObject:@txt];
4) The above can then be further condensed with the new syntactic sugar for
arrays: NSArray *filetype = @[ @txt ];
Thanks
Tom Davie
executing until the open
dialog is closed.
If the openDialog methods dispatch to the main queue, their dispatches will not
occur until the main queue is able to run another block, which won't happen
until your block finishes.
You are very much blocking the main queue.
Thanks
Tom Davie
On 16
handler = [self progressHandler];
handler(…);
});
…
}
Tom Davie
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).
Does anyone know what weird property I've ended up accidentally selecting (or
not selecting) here?
Thanks
Tom Davie
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Contact
(assuming it's the same instance it's called on), and it will
be allocated only once.
Tom Davie
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On 12 Nov 2012, at 13:39, Marco Tabini mtab...@me.com wrote:
This is completely the wrong way to implement a property. The static
variable will be shared between all instances. Here's how you should be
doing a lazy loaded var:
@implementation MyClass
{
NSDictionary *_someDictionary
token is an ivar, unlike I
did.
Tom Davie
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smarter than analyse. ARC is guaranteed to get
memory management right (modulo retain cycles and weak refs that shouldn't be
weak). Meanwhile the analyser is trying to understand what *you* did to try
and make memory management right, which is a much much harder task.
Tom Davie
for applications.
Tom Davie
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You want NSEvent's
+ (id)addGlobalMonitorForEventsMatchingMask:(NSEventMask)*mask* handler:(void
(^)(NSEvent*))*block*
*and*
*
+ (id)addLocalMonitorForEventsMatchingMask:(NSEventMask)mask handler:(NSEvent*
(^)(NSEvent*))block
Bob
*
On Sat, Feb 20, 2010 at 11:45 AM, Vikram Sethi
:)
contextInfo:nil];
[compressingProgress startAnimation:self];
}
}];}
Thanks
Tom Davie
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I need an NSMenuItem that rather than drawing an NSImage in it's cell draws
*part* of an NSImage, is it possible to override NSMenuItem's drawing in any
way to achieve this? I don't see the relevant methods.
Thanks
Tom Davie
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== self.library)
// {
// return @Library;
// }
}
Note that commenting out both lines that requests self.library cause the
error to go away.
Any help would be much appreciated.
Thanks
Tom Davie
p.s. Here's a stack trace when the lock error is logged (breaking on
_NSLockError doesn't work)
#0
An image doesn't carry a blend mode, merely the image data. You *draw* the
image in a given blend mode.
Bob
On Fri, Jan 22, 2010 at 3:52 PM, Eric E. Dolecki edole...@gmail.com wrote:
I'm not combining two or more images, I merely would like a single uiimage
in a uiimageview to have a blend
Yes, that code is 100% fine.
Here's the logic from purely your point of view.
You allocate browserviewController and in doing so take ownership.
You do some stuff with browserviewController.
You are finished with browserviewController, and don't want to do anything
else with it, so you resign
Simple answer: no.
If your application can still read the strings, so can a clever person, if
by nothing else than sitting and patiently emulating a CPU with a piece of
paper and a pencil.
In order to actually secure something *you, or your recipient* have to be
involved in decrypting it, by
of
it?
Thanks
Tom Davie
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I'm trying desperately to find where the API for scanning images is, I've
found the Image Capture API on developer.apple.com, but I can't find a more
recent version than one for 10.4, and none of the sample code compiles any
more, worse the sample apps crash on launch.
What should I be searching
I've been busy reading the documentation all day, and can't for the life of
me figure out how to change the editing behavior of an NSCell.
I have a cell, which I'd like to pop up a window over when the user attempts
to edit it (much like many websites do to present a date picker for
example).
I
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