Cocoa list
I want to port a System 9 tutorial to an OSX using Cocoa. This tutorial
consists of a series of units, each in turn consisting of a series of short RTF
text panels that appear in relation to animated drawing sequences in a separate
window when the user clicks a button. The RTF text o
Hi List,
I've been banging my head on this for awhile... I'm using a non document, non
core data application. At this point this is a fairly common (I think)
master/detail single window design. The window has a NSTabView with the master
on one tab and detail on another, and a SourceView (like M
Hi
For the the kind of view which you were mentioning you should create a
standard or customised tableview controller and set the tabbar controllers
property.After setting this add the tabbar view to the view which will
show the tab bar. Once you click the tab bar button. Tableview controller
load
On 19/06/2011, at 3:18 AM, Robert Hard wrote:
> I have RFT TextEdit files of each panel.
Just use the files as resources. They can simply be added to the project and
will be copied into your app's bundle. At runtime, load the one you want into a
NSTextView. One line of code, pretty much. I w
HI
I'm writing a subclass of CALayer and what I'm seeing is that regardless of
whether I wrap CG drawing commands in a CATransaction, or not, it still
animates. One of the properties of the subclass is a "suppressAnimations" BOOL
which, if set, is used in the draw method to dispatch the incomin
(Somehow your mail client inserted my name in the subject line.)
Let's not get ahead of ourselves here. The OP stated they're totally new to the
platform and as such it's probably ill-advised to have them start building a
view hierarchy in code when it could be done satisfactorily in Interface
Hello,
I currently have a NSTableView which displays a list of files and normally the
table view is not clickable or selectable. In this list of files I actually
display the file path as a subtitle to the file name. What I would like to do
is to turn that file path into a clickable link that
Hi,
Well after a good night sleep, found the problem. I was using this call on my
controller:
[[[self view] window] makeFirstResponder:myFirstResponderField]
I found that this kind of one liner is bad because it assumes too many things.
I'll be more careful now. In this case, the probl
In a document-based app my custom view draws some thousand paths in drawRect:
with a good performance. Now I'd like to offer a "slow-motion" animation, so
the user can actually watch the paths being drawn (not each single one, but e.
g. in steps of 100 paths per sec).
I though of several approa
Hi!
Here is the solution I got from DTS:
http://dl.dropbox.com/u/2381634/DTS/TableViewLinks-updated.zip
At a later WWDC they introduced a more evolved version of the same code:
http://developer.apple.com/library/mac/#samplecode/CocoaTipsAndTricks/Introduction/Intro.html
Best,
Pierre Bernard
Ho
Have you tried CALayer/CAAnimation? They have a lot of power and are
specifically designed for animation. If for some reason, you don't want to go
that route, the following is a bit hokey, but it might work
Add a "subsetRange" property to your view class
Create a "setSubsetRange:(NSRange) inRan
Dear list,
I have a view which contains a set of subviews. This control is a little like a
collection view. I have drag-n-drop implemented but I'm having some trouble
getting a decent image for dragging. The problem is that the subviews are not
rectangular but have rounded corners. So far I'm u
Hi Ken,
Am 19.06.2011 um 15:40 schrieb Ken Tozier:
> - (void)observeValueForKeyPath:(NSString *) inKeyPath
> ofObject:(id) inObject
> change:(NSDictionary *) inChange
> context:(void *) inContext
> {
> if ([inKeyPath isEqualToString: @"subsetRange"
Here is a trick I saw somewhere else that might do what you need. On the other
hand, i'm still learning cocoa myself so it may have drawbacks that I'm unaware
of.
Create a private property (like internal_foo below) to handle memory. Then have
a public property to do the other stuff. So users of
- (NSImage *)illustration
{
if ( illustrationData != nil ){
NSImage* thisImage = [NSImage new];
NSBitmapImageRep* bitmapImageRep = [[NSBitmapImageRep alloc]
initWithData:illustrationData];
NSPICTImageRep* pictImageRep = [[NSPICTImageRep alloc]
initWithData:illustratio
If you keep the animation short (say 1.5 to 2 seconds) the freezes might not be
too irksome to the user, but eliminating them altogether would require adding
NSOperationQueues and NSInvocationOperations to the mix and this is even too
hokey for me :)
With CALayers, you could create 10 different
NEVER test for memory leaks using -retainCount. ALWAYS use the supplied tools
instead.
On 19 Jun 2011, at 15:29, Tony Cate wrote:
> - (NSImage *)illustration
> {
>if ( illustrationData != nil ){
>NSImage* thisImage = [NSImage new];
You never (auto)release this image, so it's getting
I assume you are using the draw rect function. The following is my
opinion and my way of doing
When the user selects the objects; create path from the non rectangular
image with respect to any frame of reference like frame or bounds of the
shape.
You can use path to clip the region by using mask o
Problem: I have to automatically mirror 2 folders, /A and /B, such a way
they contains the same files and folders.
- So I FSEventStreamCreate with kFSEventStreamEventIdSinceNow,
kFSEventStreamCreateFlagWatchRoot and a 2 seconds latency time.
- I get a notification: there is a new file to copy fro
Look at "TableViewLinks/NSAttributedStringAdditions.m" in the sample code.
- Original Message -
From: "Rick C."
To: "Cocoa Development"
Sent: Sunday, June 19, 2011 4:08:11 AM
Subject: making a clickable link in NSTableView
Hello,
I currently have a NSTableView which displays a list of
On 19 Jun 2011, at 10:28 AM, Bing Li wrote:
> I got another problem in the following method. A byte array is used to save
> data transmitted from a remote node and the size is different for each
> message. I think I need to release the byte array after it is used. However,
> the system got crashed
On Jun 19, 2011, at 9:28 AM, Bing Li wrote:
> One more issue is that there was no memory leaking even if I didn't add the
> line, free(receivedBytes). Why?
Because it's stack-allocated, not allocated with any version of malloc. I
pointed out the same mistake in my first email to you, yet here yo
Dear all,
First, I appreciate so much for your replies in the past days. Those replies
help me a lot when implementing my system.
I got another problem in the following method. A byte array is used to save
data transmitted from a remote node and the size is different for each
message. I think I n
On Sun, Jun 19, 2011 at 12:38 AM, Ken Tozier wrote:
> HI
>
> I'm writing a subclass of CALayer and what I'm seeing is that regardless of
> whether I wrap CG drawing commands in a CATransaction, or not, it still
> animates. One of the properties of the subclass is a "suppressAnimations"
> BOOL w
On Sun, Jun 19, 2011 at 6:46 AM, Martin Hewitson
wrote:
> I have a view which contains a set of subviews. This control is a little like
> a collection view. I have drag-n-drop implemented but I'm having some trouble
> getting a decent image for dragging. The problem is that the subviews are not
On Jun 19, 2011, at 10:48 AM, Leonardo wrote:
> 2) During the period of time the stream is off, if some new files arrive
> within the folder /A, I lose the notification to copy it.
I think you have to leave the event streams active all the time, keep track of
your own actions, and filter out tho
Dear Scott and Fritz,
Actually, my system made a lot of progresses according to your replies. I
really don't have enough experiences on C. So I need to improve.
I appreciate so much for your help!
Best regards,
Bing
On Mon, Jun 20, 2011 at 12:13 AM, Scott Ribe wrote:
> On Jun 19, 2011, at 9:28
I got an off-list reply suggesting clipping the final image with a bezier path.
So I used NSBezierPath's addClip with the same path used in drawRect: for
clipping my final image. Works perfectly.
Thanks to all for the suggestions!
Martin
On 19, Jun, 2011, at 07:06 PM, Kyle Sluder wrote:
> On
On 18 Jun 2011, at 17:09, ben kamen wrote:
ok, so it seems like my problem is actually in getting it to load
the bundle in the first place. what am i missing?
the bundle identifier in the plist is set to : com.olympia-noise-
co.RO_CocoaViewFactory
and in the main cpp file i have this,
On Sun, 19 Jun 2011 15:12:31 +1000, Graham Cox said:
>If I synthesize a property, is it possible to also directly invoke some other
>code when that property is set (other than the usual KVO)? That is, I need to
>do something like:
>
>
>@synthesize foo;
>
>
>- (void) setFoo:(id) new
On Jun 19, 2011, at 1:03 PM, Kyle Sluder wrote:
> You're mixing conceptual layers here.
>
> CG drawing isn't animated at all. The animation happens at the Core
> Animation layer. When CA asks your layer to -drawInContext: that's an
> atomic operation from CA's perspective. The thing getting anima
On Jun 19, 2011, at 11:01 AM, Matt Neuburg wrote:
> I provide a good (I think) technique for doing this in my book (p. 275,
> example 12-5 "Overriding synthesized accessors"). You can also download
> sample code here:
>
> https://github.com/mattneub/Programming-iOS-4-Book-Examples/tree/master/
Thanks for the suggestions, everyone. I ended up generating HTML files, and
they seem to be working fine.
Cheers,
Dave
On Jun 18, 2011, at 8:06 AM, Douglas Davidson wrote:
> I might point out that NSAttributedString has a facility for writing out HTML
> that has options flexible enough to do
Sorry, seems I sent this to the wrong list.
On 19 Jun 2011, at 11:54, Stephen Blinkhorn wrote:
On 18 Jun 2011, at 17:09, ben kamen wrote:
ok, so it seems like my problem is actually in getting it to load
the bundle in the first place. what am i missing?
the bundle identifier in the plis
BTW we have code for streamed generation of HTML files here:
https://github.com/karelia/KSHTMLWriter
On 19 Jun 2011, at 19:03, Dave DeLong wrote:
> Thanks for the suggestions, everyone. I ended up generating HTML files, and
> they seem to be working fine.
>
> Cheers,
>
> Dave
>
> On Jun 18,
Hi Brian,
The technique that I have been using for a long time is to alloc/init the
window controller, make the window controller the delegate of the window, and
invoke [self autorelease] in windowWillClose:. It's essentially the same thing
you are doing with less code.
The thing that I love a
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Hash: SHA1
On 6/19/11 10:59 AM, Julie Seif wrote:
> Conrad,
>
> Could you please tell me more about your idea with a
> UINavigationController hosing a UITableView
>
> Thanks.
> julie.
(Putting back on list.)
As I stated previously you will really want to
On Sun, Jun 19, 2011 at 11:01 AM, Ken Tozier wrote:
> On Jun 19, 2011, at 1:03 PM, Kyle Sluder wrote:
>
>> You're mixing conceptual layers here.
>>
>> CG drawing isn't animated at all. The animation happens at the Core
>> Animation layer. When CA asks your layer to -drawInContext: that's an
>> ato
I am trying to do an indeterminate progress indicator in a small
NSPanel window similar to that shown in Figure 15-57 of the
OSXHIGuidelines. The NSPanel and NSProgresssIndicator are in a nib
file and I'm pretty sure the IB connections are correct. If I use a
spin progress indicator, I can
On Sun, Jun 19, 2011 at 1:14 PM, James Merkel wrote:
> Then use the progress indicator as follows;
>
> ProgressController * progressController = nil;
> progressController =[[ProgressController alloc] init];
> NSLog(@"Progress window: %@\n", [progressController window]);
>
On Jun 19, 2011, at 13:14, James Merkel wrote:
> ProgressController * progressController = nil;
> progressController =[[ProgressController alloc] init];
> NSLog(@"Progress window: %@\n", [progressController window]);
> [progressController startProgressAnimation];
>
On Jun 19, 2011, at 1:27 PM, Quincey Morris wrote:
On Jun 19, 2011, at 13:14, James Merkel wrote:
ProgressController * progressController = nil;
progressController =[[ProgressController alloc] init];
NSLog(@"Progress window: %@\n", [progressController window]);
Am 19.06.2011 um 19:05 schrieb cocoa-dev-requ...@lists.apple.com:
> If you keep the animation short (say 1.5 to 2 seconds) the freezes might not
> be too irksome to the user [...] CALayer look like an attractive option.
Even with only 0.01 seconds sleep after drawing each path the UI froze
comp
Of course they are not designed for atomic operations, you have to add all
the critical sections to make it so. If you argue that you don't need the
multi threaded robustness, then you could argue the value hooking the
setter diminishes the benefit of using the synthesis feature since you are
writi
On Jun 19, 2011, at 3:57 PM, Kyle Sluder wrote:
> Core Animation's view of the world ends when it hands you a CGContext
> and says "fill this with bits." It can't animate the contents of a
> CGContext because a CGContext really is just an opaque bit receiver
> and associated drawing state. Even t
On Jun 19, 2011, at 7:29 AM, Tony Cate wrote:
> bitmapImageRep is leaking.
Actually it looks like thisImage is what’s leaking (and the imageReps leak too
because they’re retained by it.) You initialize thisImage from a +new call
(which is shorthand for alloc+init), but you don’t autorelease it
Leonardo wrote:
2) During the period of time the stream is off, if some new files
arrive
within the folder /A, I lose the notification to copy it.
How to workaround that?
Make a directory adjacent to /A and /B to use as a staging area for
copying. Only copy into the staging area.
http
How about adding an instance variable to your window controller subclass which
keeps a strong reference to itself. Also register as your own delegate, and nil
the strong reference in your windowWillClose: (or perhaps windowDidClose:)
Effectively you now have your delegate (yourself) retaining th
On 19/06/2011, at 10:46 PM, Matthias Arndt wrote:
> In a document-based app my custom view draws some thousand paths in drawRect:
> with a good performance. Now I'd like to offer a "slow-motion" animation, so
> the user can actually watch the paths being drawn (not each single one, but
> e. g.
I have a NSTextView's value bound to an object. I do not have "Continuous
update" turned on. The binding works when I type into the field and exit the
field. However if I *paste* text into the field, then exit the field, the
binding set: method is never called.
What am I missing?
Great thanks all for pointing me in the right direction. I'll post back if I
have any further questions...
On Jun 20, 2011, at 12:55 AM, Lee Ann Rucker wrote:
> Look at "TableViewLinks/NSAttributedStringAdditions.m" in the sample code.
>
> - Original Message -
> From: "Rick C."
> To:
Hi Roland,
I don't follow you. You want to add MyWindowController *strongRefToKeepARCHappy
and set it to [self retain]? I don't see an advantage to that. I suppose it
would work but you'd want to give it a name like I did or include a comment for
why you are retaining an instance of yourself. I
Hello,
I've the following situation: I have 3 UIScrollViews in an app. The first is
like a table (centerTable). The second a row (firstRow) and the last a column
(firstColumn). The column must scroll only in vertical, the row only in
horizontal and the table in any direction. And the movement m
are you binding to an object controller? or just an object?
use an object controller if not.
On Jun 19, 2011, at 8:33 PM, Chris Idou wrote:
>
>
> I have a NSTextView's value bound to an object. I do not have "Continuous
> update" turned on. The binding works when I type into the field and ex
Something seems wrong with -[NSURL URLByAppendingPathComponent:] --
(gdb) po baseURL
http://127.0.0.1:5984/
(gdb) po [baseURL URLByAppendingPathComponent: @"foo"]
http://127.0.0.1:5984/foo
(gdb) po [baseURL URLByAppendingPathComponent: @"foo/"]
http://127.0.0.1:5984/foo//
Why the doubled slash at
I can repro that as well, and I'd say it's a bug. I also tried this as
well:
Using: NSURL *baseURL = [NSURL URLWithString:@"http://129.0.0.1/";];
(gdb) po [baseURL URLByAppendingPathComponent: @"/foo"]
http://129.0.0.1//foo
according to the discussion for URLAppendingPathComponent:
"If the
On Jun 19, 2011, at 11:59, Tales Pinheiro de Andrade wrote:
>if ([keyPath isEqualToString:@"contentOffset"]) {
>CGPoint newContentOffset = [(UIScrollView *)object contentOffset];
>newContentOffset.y = self.contentOffset.y;
>self.contentOffset = newContentOffset;
>}
Hello everyone.
I'm experiencing rather weird behavior of NSArrayController, and I wonder if
any of you have a clue.
Background: I use an NSTableView with an NSArrayController to display a list of
CoreData entity instances (say instances of "Note" entity). I DO NOT
configure the array contro
Hi Graham,
Am 20. Jun 2011 um 02:24 schrieb Graham Cox :
> Your (4) is looking like the best approach - use a timer to schedule a
> periodic update of the view, and during that update, draw only some portion
> of the content on top of what you've drawn already. That leaves the issue of
> view
On 19.06.2011, at 14:46, Matthias Arndt wrote:
> 1. Sleeping the drawing loop in drawRect: (or make the runLoop wait for some
> time) and use [... flushGraphics]: Freezes the GUI, as the app is
> single-threaded
sleep() will block the thread you're in. That's never a good idea (unless the
alte
On 19.06.2011, at 09:18, Graham Cox wrote:
> Just use the files as resources.
Just to avoid any potential for confusion: What Graham means here are
lower-case resources, i.e. files in a "Resources" folder in your application.
The original stuff you probably have are upper-case Resources, i.e. l
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