Re: Best way to hook into the run loop?
On 05.12.2009, at 01:36, Graham Cox wrote: If anyone can think of an elegant and straightforward alternative, please feel free to suggest it. I've found that the obvious solution of submitting an object's state at the start of a drag is actually really awkward and horrible in practice, since it requires that the controller needs to know in advance all of the relevant properties that will be changed, when in fact that's none of its business. The data model should be free to change anything it needs to in response to a higher-level command and submit its own undo tasks. I thought that was what undo groups were for? Open a group at the start of the drag manually, close it at the end, and everything in between gets lumped into one big action at the end. It may get replayed internally, but will all be triggered by one Cmd-Z. Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On 06/12/2009, at 8:12 PM, Uli Kusterer wrote: I thought that was what undo groups were for? Open a group at the start of the drag manually, close it at the end, and everything in between gets lumped into one big action at the end. It may get replayed internally, but will all be triggered by one Cmd-Z. Indeed, undo groups are great. Unfortunately, NSUndoManager has a bug where if you open a group (on mouse down, say), do nothing (no drag), and close it again (on mouse up), an empty Undo task appears in the Undo menu. It's harmless, in that it does nothing, but it's also a nuisance, since the user doesn't expect this and reports it as a bug with your app. It's working around this bug that is horrible and surprisingly complicated (for two reasons - one, you can't peek at the top of the undo stack to see what's there and two, even if you could there's no way to tell whether the task there is empty, because the 'tasks' are all private classes. Therefore you have to come up with another way either to detect this case, or to prevent it from happening. Either way, it's a complicated and nasty hack). Incidentally I have reported this bug but it came back as a dupe. It's been there since I started with Cocoa, on 10.2. In addition, you don't really want a group to record every intermediate step of a drag - theoretically that could run to any number of tasks, which on Undo would be 'replayed', so the drag would eventually get undone but who cares about all the in-between steps? You just want the object to return to the position at the start of the drag. This is what 'task coalescing' achieves, along with the potentially huge memory saving of not recording the irrelevant in-between steps. Unfortunately NSUndoManager doesn't support task coalescing, so you have to subclass it to add this. It's not a huge deal but the bogus task problem is. I've now written my own undo manager from scratch. It's much more straightforward than NSUndoManager in that it uses Cocoa collection classes internally - I'm guessing that one reason for NSUndoManager's arcane implementation with all its weird group end and start markers and so on is so that it also works with Core Foundation alone. It turns out my approach is coincidentally very near identical to GNUStep's implementation. I was concerned that because it subclasses NSObject, not NSUndoManager, it would cause trouble when passed to NSDocument's -setUndoManager: method, but so far I can report that it works perfectly with no issues, supports coalescing and doesn't exhibit the empty group bug. It has an identical public API to NSUndoManager so my main concern was whether internal parts of Cocoa were using private API but that does not appear to be the case. I followed the documentation with respect to when the various notifications are sent, and that didn't quite keep NSDocument's dirty state properly in synch, so I did what was necessary to keep it happy and so now it's slightly not as documented - but I suspect the issue there is that the docs are subtly incorrect. There's also a suspicion among users who contacted me off-list that Core Data is doing something with private Undo API, so mine may not support a Core Data app, but for now that doesn't concern me. I've still got some testing to do to really prove it's safe to use, but so far I'm much happier with it than NSUndoManager (and if things do go wrong I can at least debug it directly instead of having to guess what's going on inside the black box and relying on the inaccurate documentation). I'll put it out on my website when I'm done - not seeing those useless 'undo manager is in an invalid state' logs is liberating, I can tell you. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: passing nothing to method with CGPoint argument
On 06/12/2009, at 1:08 PM, Chunk 1978 wrote: for factoring purposes i want to be able to call the same method from touchesEnded that will clear the output strings if there is no point, but CGPointZero is a point. Can't you just define an 'impossible' point value to act as a sentinel? Something very negative for example. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On 6 Dec 2009, at 10:53, Graham Cox wrote: On 06/12/2009, at 8:12 PM, Uli Kusterer wrote: I thought that was what undo groups were for? Open a group at the start of the drag manually, close it at the end, and everything in between gets lumped into one big action at the end. It may get replayed internally, but will all be triggered by one Cmd-Z. Indeed, undo groups are great. Unfortunately, NSUndoManager has a bug where if you open a group (on mouse down, say), do nothing (no drag), and close it again (on mouse up), an empty Undo task appears in the Undo menu. It's harmless, in that it does nothing, but it's also a nuisance, since the user doesn't expect this and reports it as a bug with your app. But why are you opening a group without registering an undo action? Why not just wait until the first action actually needs to be registered? It's working around this bug that is horrible and surprisingly complicated (for two reasons - one, you can't peek at the top of the undo stack to see what's there and two, even if you could there's no way to tell whether the task there is empty, because the 'tasks' are all private classes. Therefore you have to come up with another way either to detect this case, or to prevent it from happening. Either way, it's a complicated and nasty hack). Incidentally I have reported this bug but it came back as a dupe. It's been there since I started with Cocoa, on 10.2. I'm not even sure it is a bug, since the undo manager is designed to work in terms of groups, not individual actions. In addition, you don't really want a group to record every intermediate step of a drag - theoretically that could run to any number of tasks, which on Undo would be 'replayed', so the drag would eventually get undone but who cares about all the in-between steps? You just want the object to return to the position at the start of the drag. This is what 'task coalescing' achieves, along with the potentially huge memory saving of not recording the irrelevant in-between steps. Unfortunately NSUndoManager doesn't support task coalescing, so you have to subclass it to add this. It's not a huge deal but the bogus task problem is. So again, why not just wait till the end of the drag and record a single action? I've now written my own undo manager from scratch. It's much more straightforward than NSUndoManager in that it uses Cocoa collection classes internally - I'm guessing that one reason for NSUndoManager's arcane implementation with all its weird group end and start markers and so on is so that it also works with Core Foundation alone. It turns out my approach is coincidentally very near identical to GNUStep's implementation. I was concerned that because it subclasses NSObject, not NSUndoManager, it would cause trouble when passed to NSDocument's -setUndoManager: method, but so far I can report that it works perfectly with no issues, supports coalescing and doesn't exhibit the empty group bug. It has an identical public API to NSUndoManager so my main concern was whether internal parts of Cocoa were using private API but that does not appear to be the case. I followed the documentation with respect to when the various notifications are sent, and that didn't quite keep NSDocument's dirty state properly in synch, so I did what was necessary to keep it happy and so now it's slightly not as documented - but I suspect the issue there is that the docs are subtly incorrect. There's also a suspicion among users who contacted me off-list that Core Data is doing something with private Undo API, so mine may not support a Core Data app, but for now that doesn't concern me. I've still got some testing to do to really prove it's safe to use, but so far I'm much happier with it than NSUndoManager (and if things do go wrong I can at least debug it directly instead of having to guess what's going on inside the black box and relying on the inaccurate documentation). I'll put it out on my website when I'm done - not seeing those useless 'undo manager is in an invalid state' logs is liberating, I can tell you. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoadev%40mikeabdullah.net This email sent to cocoa...@mikeabdullah.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to
Re: Best way to hook into the run loop?
On 06/12/2009, at 10:57 PM, Mike Abdullah wrote: But why are you opening a group without registering an undo action? Why not just wait until the first action actually needs to be registered? I tried it but it doesn't work. I forget the details now as this was my first approach and that was a long time ago, but basically the undo manager didn't tolerate having groups deferred until a task was actually received. It would crash, but without the code, I couldn't say why. My second approach was to wait until a mouse drag was received, then IF the mouse drag handler knew it was going to cause an undoable data model change, it would call its delegate to open a group. That worked but was very complicated - not every mouse drag necessarily led to an undoable change, so a lot of special cases were needed. It was truly ugly. (Bear in mind these mouse drag handlers are all individual tools in a drawing app, but some tools cause undoable changes, and others don't, e.g. zoom tool). My third approach was to count the tasks received after opening a group and then if that value was 0 at the end of the drag, invoke -undo to remove the empty group. That works but I ran into a further issue that if an exception is thrown during the drag then cleaning up the open group could not be done (the group level stayed stuck at 1 and the group stayed open, leading to the undo manager ceasing to work). Without the code, I couldn't say why. My fourth approach is to write my own bloody undo manager and have done with it. Result so far - bliss. It's really nice and simple if you can just open a group on mouse down, and close it again on mouse up. If this didn't result in a bogus Undo task, it would work great, as my home grown implementation shows - there's no need to worry whether you need the group or not, because if it ends up empty it's never added to the Undo stack and is discarded. I believe NSUndoManager should do that also. I'm not even sure it is a bug, since the undo manager is designed to work in terms of groups, not individual actions. Internally it works in groups, but a group needs to have at least one action otherwise it does nothing. However, an empty group still appears as an undoable task in the menu, which is useless. It just causes the user to think that your app is broken. What purpose does an empty group serve? I suppose some apps might not be submitting any actual actions to the undo manager, but just relying on undo notifications to perform undo by some other means internally, which might explain why this behaviour persists - but if that is the case the docs are silent on that point (and a better design would be to allow that behaviour to be disabled). So again, why not just wait till the end of the drag and record a single action? Because an individual property has no way to know whether it's the last in a series invoked by a drag. How do you detect 'last'? You can't, because it might not have happened yet. If I have a basic property of an object in my data model, it can submit its old value to the undo manager - very simple. But it doesn't know who called it or whether or not it will be called again. However the Undo Manager does know something about a sequence of identical properties submitted to it because it is aware of the event cycle and the open group that it's adding actions to. It can accept the first (representing the initial or original state) and drop the remainder within that event cycle or group. Detecting the first is easy (and for undo, is the one that counts), detecting last is impossible. It might be possible to capture the state at the start of a drag but bear in mind that a drag could change any number of properties of any number of objects. In order to capture the state in advance it would have to know what the drag was actually going to change. The object that handles the drag has no such knowledge - the data model has that information. The mouse drag is something that happens at the controller level (the events having been passed to it from a view) but the actual changes to the data model occur at the model level, and it is the model that knows what properties to change and thus submits their old values to the undo manager. In hindsight it might have been better to have the controller observe the changes via KVO and handle the coalescing and undo submission there, since it can discriminate between the first and last in a sequence of mouse events, but that would be a huge rewrite of my app at this stage. Besides, I've always thought of Undo as a model-level feature - it's the changes to the data model that you're actually undoing, so its unclear if moving the responsibility for Undo into the controller is even theoretically the right thing to do. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the
Re: Best way to hook into the run loop?
On Dec 6, 2009, at 7:36 AM, Graham Cox wrote: My fourth approach is to write my own bloody undo manager and have done with it. Result so far - bliss. FWIW, Wil Shipley agrees about the bliss part: http://wilshipley.com/blog/2007/12/transitions-and-epiphanies.html I was so into using CoreData's magic undo that I kept going farther and farther to make it work, when I really needed to say, Ok, this doesn't work in this situation, I'm doing my own undo in 40 lines of code. I haven't worked with NSUndoManager myself, but my takeaway from this (and also from a friend who was also frustrated with it) is that it's great for very basic scenarios, but if I ever find myself getting frustrated with it I shouldn't hesitate to write my own. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
Ah, thanks for that little glimmer of encouragement! If it's good enough for WS, it's good enough for me. I guess my problems stem from the fact that my app is heavily based on mouse dragging gestures, and mouse dragging is a whole series of events. The undo manager is maybe not so well designed to group tasks that are distributed across a series of events, but is mostly based on the idea that anything that's going to happen will happen within a single event cycle. My own implementation is definitely designed with the mouse dragging usage in mind, so perhaps it's more suitable in this situation but possibly not in every other case. I feel a little more confident that I'm not totally barmy for taking this approach. I'd still like to know where in the MVC picture undo is ideally supposed to sit however. --Graham On 07/12/2009, at 12:30 AM, Andy Lee wrote: On Dec 6, 2009, at 7:36 AM, Graham Cox wrote: My fourth approach is to write my own bloody undo manager and have done with it. Result so far - bliss. FWIW, Wil Shipley agrees about the bliss part: http://wilshipley.com/blog/2007/12/transitions-and-epiphanies.html I was so into using CoreData's magic undo that I kept going farther and farther to make it work, when I really needed to say, Ok, this doesn't work in this situation, I'm doing my own undo in 40 lines of code. I haven't worked with NSUndoManager myself, but my takeaway from this (and also from a friend who was also frustrated with it) is that it's great for very basic scenarios, but if I ever find myself getting frustrated with it I shouldn't hesitate to write my own. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Programatically Setting Delegate
I translate you url for a better understanding for other readers: You google: you forgot to allocate the object before setting it's delegate The result: No results found for you forgot to allocate the object before setting it's delegate. So what are you telling us? Maybe you should have shown code. The error message is clearly not because you forgot an alloc. The compiler does not check if you pointer is pointing to a valid object or nil or garbage. How should it? Or I completely misunderstood what you wanted to know. I am sorry then for pointing you to the obvious. atze Am 05.12.2009 um 20:57 schrieb Chunk 1978: i figured it out. alexander, this would have been more helpful: http://tinyurl.com/yjpeljv On Sat, Dec 5, 2009 at 2:42 PM, Chunk 1978 chunk1...@gmail.com wrote: thanks for teaching me how to use google. huge help. unfortunately, since i've imported both UIKit and my controller class into my custom UIImageView class, my question is wasn't what does that error mean, but why am i receiving it. On Sat, Dec 5, 2009 at 6:45 AM, Alexander Spohr a...@freeport.de wrote: http://lmgtfy.com/?q=error+request+for+member+is+something+not+a+structure+of+union atze Am 05.12.2009 um 09:12 schrieb Chunk 1978: i have a UIViewController that i'm setting as the delegate for my custom UIImageView class. from my custom UIImageView class i want the delegate to change it's background color (based on computations performed within the UIImageView class). in my UIViewController i write: – myUIImageViewClass.classDelegate = self; – then in my custome UIImageViewClass i synthisize the accessor method for the classDelegate, which is of type id. then from within the code i try to change the background color of it's delegate with this: – [[classDelegate view] setBackgroundColor:[UIColor greenColor]]; – if i write it like classDelegate.view.backgroundColor = ... then i receive and error saying error request for member is something not a structure of union ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/atze%40freeport.de This email sent to a...@freeport.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On 6 Dec 2009, at 13:30, Andy Lee wrote: On Dec 6, 2009, at 7:36 AM, Graham Cox wrote: My fourth approach is to write my own bloody undo manager and have done with it. Result so far - bliss. FWIW, Wil Shipley agrees about the bliss part: http://wilshipley.com/blog/2007/12/transitions-and-epiphanies.html I was so into using CoreData's magic undo that I kept going farther and farther to make it work, when I really needed to say, Ok, this doesn't work in this situation, I'm doing my own undo in 40 lines of code. I haven't worked with NSUndoManager myself, but my takeaway from this (and also from a friend who was also frustrated with it) is that it's great for very basic scenarios, but if I ever find myself getting frustrated with it I shouldn't hesitate to write my own. Er, Wil's post has nothing to do with Graham's problem. Wil ran into issues fighting Core Data's built-in undo registration and decided the best approach to manually record undo information himself instead. I am almost 100% certain Wil didn't then proceed to chuck out NSUndoManager. He just turned off Core Data's use of it. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSPopUpButton questions
On Dec 5, 2009, at 6:29 PM, timm...@gmail.com wrote: The Apple docs for NSPopUpButtons says to avoid accessing it's NSMenu directly because it may need to do housekeeping. I had to access it's NSMenu directly though so that I could make a separator menu item. Is this fine for this situation, or is there a better way to do this to conform to Apple's recommendation? I believe this warning is about changing the menu at certain times, such as when the button is about to pop up. Also, is there a way to set a menu item to act like it's disabled, but without graying out its title and image? I'm trying to insert a Bonjour section and want the Bonjour menu item and image to be unselectable, but not grayed out. No that I am aware of, and probably because is smells like a HIG violation. If you want a named subgroup, you should use a submenu. HTH, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On Dec 6, 2009, at 10:20 AM, Mike Abdullah wrote: On 6 Dec 2009, at 13:30, Andy Lee wrote: On Dec 6, 2009, at 7:36 AM, Graham Cox wrote: My fourth approach is to write my own bloody undo manager and have done with it. Result so far - bliss. FWIW, Wil Shipley agrees about the bliss part: http://wilshipley.com/blog/2007/12/transitions-and-epiphanies.html I was so into using CoreData's magic undo that I kept going farther and farther to make it work, when I really needed to say, Ok, this doesn't work in this situation, I'm doing my own undo in 40 lines of code. I haven't worked with NSUndoManager myself, but my takeaway from this (and also from a friend who was also frustrated with it) is that it's great for very basic scenarios, but if I ever find myself getting frustrated with it I shouldn't hesitate to write my own. Er, Wil's post has nothing to do with Graham's problem. Wil ran into issues fighting Core Data's built-in undo registration and decided the best approach to manually record undo information himself instead. I am almost 100% certain Wil didn't then proceed to chuck out NSUndoManager. He just turned off Core Data's use of it. True, the contexts are different. My point was that if built-in undo doesn't work for you for whatever reason, it's not wacky to consider writing your own. Usually when one starts down this road it's reasonable to wonder whether you're missing something and fighting the frameworks. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On Dec 6, 2009, at 5:53 AM, Graham Cox wrote:
On 06/12/2009, at 8:12 PM, Uli Kusterer wrote:
I thought that was what undo groups were for? Open a group at the start of
the drag manually, close it at the end, and everything in between gets
lumped into one big action at the end. It may get replayed internally, but
will all be triggered by one Cmd-Z.
Indeed, undo groups are great. Unfortunately, NSUndoManager has a bug where
if you open a group (on mouse down, say), do nothing (no drag), and close it
again (on mouse up), an empty Undo task appears in the Undo menu. It's
harmless, in that it does nothing, but it's also a nuisance, since the user
doesn't expect this and reports it as a bug with your app. It's working
around this bug that is horrible and surprisingly complicated (for two
reasons - one, you can't peek at the top of the undo stack to see what's
there and two, even if you could there's no way to tell whether the task
there is empty, because the 'tasks' are all private classes. Therefore you
have to come up with another way either to detect this case, or to prevent it
from happening. Either way, it's a complicated and nasty hack). Incidentally
I have reported this bug but it came back as a dupe. It's been there since I
started with Cocoa, on 10.2.
I ran into the same problem and my bug was also flagged as a duplicate. Here is
my submission which includes my workaround:
14-Aug-2008 09:31 AM Paul Bruneau:
* SUMMARY
When trying to utilize undo grouping using what seems to be the most
straightforward way, the undo group can be empty with no actions in it, yet
the system will still put this empty group into the undo stack.
* STEPS TO REPRODUCE
In my case, I am dealing with user actions in an NSView subclass. I use
-mouseDown, -mouseDragged, and -mouseUp.
The way that seemed at first to be best is to initiate an undo group in
-mouseDown, create undo actions during -mouseDragged, and finally to
terminate the undo grouping in -mouseUp. The user clicks objects in the view
and drags them around. This results in many operations over the course of the
dragging, all of which I want to be in one undo group.
But if I implement my grouping code in mouseDown and mouseUp, I have the
problem where if the user just clicks on one of my objects without moving it,
the undo group is empty, containing no actions.
* RESULTS
The results of this are that the empty undo group is put on the stack, and
the user can Undo it, but nothing happens (because there was no action to
undo).
What I would like to see, is if an undo group has no actions in it, it should
be discarded. Surely this is what Cocoa does when it is doing its normal
event loop based grouping. It doesn't put an empty undo group into the
stack with every pass of the event loop--why does it put my empty undo group
into the stack?
Or perhaps consider this a documentation enhancement request. Maybe there is
an easy solution for me that I don't know about.
* NOTES
In my particular case, I was able to perform a workaround by implementing the
-beginUndoGrouping message in my -mouseDragged method.
By doing it this way, I am assured that the user is actually dragging around
one of the objects in my view rather that just clicking on one, or clicking a
blank area of the view.
But it is kind of kludgy because -mouseDragged is repeatedly called while the
user is dragging. So I had to test to see if an undo group already exists
like so:
- (void)mouseDragged:(NSEvent *)event
{
if ( dragging == YES )
{
if ( [[myUndoManager] groupingLevel] == 0 )
{
//start custom undo grouping
[[myUndoManager] setGroupsByEvent:NO];
[[myUndoManager] beginUndoGrouping];
}
...
But I don't find this optimal. It would get a lot more complex if I did any
nested groups I think.
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Re: NSPopUpButton questions
On Sat, 5 Dec 2009 20:29:25 -0500, timm...@gmail.com timm...@gmail.com said: The Apple docs for NSPopUpButtons says to avoid accessing it's NSMenu directly because it may need to do housekeeping. Where do the Apple docs say that? I'm thinking there might be some misunderstanding lurking here. m. -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ A fool + a tool + an autorelease pool = cool! AppleScript: the Definitive Guide - Second Edition! http://www.tidbits.com/matt/default.html#applescriptthings ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSPopUpButton questions
On Dec 6, 2009, at 11:34 AM, Matt Neuburg wrote: On Sat, 5 Dec 2009 20:29:25 -0500, timm...@gmail.com timm...@gmail.com said: The Apple docs for NSPopUpButtons says to avoid accessing it's NSMenu directly because it may need to do housekeeping. Where do the Apple docs say that? I'm thinking there might be some misunderstanding lurking here. m. Indeed, there are a few methods where the docs specifically recommend accessing the menu directly, e.g.: http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Classes/NSPopUpButton_Class/Reference/Reference.html#//apple_ref/occ/instm/NSPopUpButton/insertItemWithTitle:atIndex: Since this method searches for duplicate items, it should not be used if you are adding an item to an already populated menu with more than a few hundred items. Add items directly to the receiver's menu instead. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Programatically Setting Delegate
On Dec 6, 2009, at 7:12 AM, Alexander Spohr a...@freeport.de wrote: So what are you telling us? He's saying he eventually found the problem on his own. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is it possible to pass an object to a NIB
I tightened up the code a bit:
#Obj-C version: - (id)initWithContentsOfURL:(NSURL *)nibFileURL
nib_file = NSNib.alloc.initWithContentsOfURL NSURL::fileURLWithPath(@@NibPath)
#Obj-C version: -
(BOOL)instantiateNibWithOwner:(id)ownertopLevelObjects:(NSArray
**)topLevelObjects
#The Ruby bridge puts the top level objects in the second return value because
the 2nd param takes a pointer
# and Ruby does not have pointers
result, top_level_objects = nib_file.instantiateNibWithOwner_topLevelObjects
NSApplication.sharedApplication
view = top_level_objects.find { |obj| obj.class == object_type }
- Sean___
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[MEET] CocoaHeads-NYC this Thursday (*note location*)
For our last meeting of 2009, Bob Clair will talk about blocks. ** IMPORTANT NOTE ABOUT LOCATION ** The December meeting will not be at the usual Tekserve location. Instead, it will be hosted by our friends at Apress: Apress 233 Spring Street (between 6th Avenue and Varick Street) 6th Floor New York, NY 10013 Directions: C or E trains to Spring Street or #1 train to Houston Street There is a link to a Google map at http://apress.com/info/contact As usual: (1) Please feel free to bring questions, code, and works in progress. We have a projector and we like to see code and try to help. (2) We'll go somewhere for food and beer afterwards. (3) If there's a topic you'd like presented, let us know. (4) If *you'd* like to give a talk, let me know. Hope to see you there! --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSPopUpButton questions
On Dec 6, 2009, at 12:29 PM, Andy Lee wrote: On Dec 6, 2009, at 11:34 AM, Matt Neuburg wrote: On Sat, 5 Dec 2009 20:29:25 -0500, timm...@gmail.com timm...@gmail.com said: The Apple docs for NSPopUpButtons says to avoid accessing it's NSMenu directly because it may need to do housekeeping. Where do the Apple docs say that? I'm thinking there might be some misunderstanding lurking here. m. Indeed, there are a few methods where the docs specifically recommend accessing the menu directly, e.g.: http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Classes/NSPopUpButton_Class/Reference/Reference.html#//apple_ref/occ/instm/NSPopUpButton/insertItemWithTitle:atIndex: Since this method searches for duplicate items, it should not be used if you are adding an item to an already populated menu with more than a few hundred items. Add items directly to the receiver's menu instead. Yeah, but the OP is right, the Application Menu and Pop-up List Programming Topics for Cocoa says this: To implement its menu, the button cell contains an NSMenu object, which in turn contains several NSMenuItem objects, one for each item in the menu. Avoid invoking methods on the NSMenu object directly, but instead invoke methods on theNSPopUpButton instance, which may need to do some housekeeping before invoking the appropriate methods on the menu. However, you can retrieve the menu with the NSPopUpButton method menu. The NSPopUpButton methods you use most often are the methods that tell you which item is selected. http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/MenuList/Articles/HowMenusWork.html I have to say this has never stopped me from molesting the menu directly. But I disagree with the HIG on popup menus so I'm often on the wrong side of the law regarding this topic.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On Dec 6, 2009, at 04:36, Graham Cox wrote: On 06/12/2009, at 10:57 PM, Mike Abdullah wrote: But why are you opening a group without registering an undo action? Why not just wait until the first action actually needs to be registered? I tried it but it doesn't work. I forget the details now as this was my first approach and that was a long time ago, but basically the undo manager didn't tolerate having groups deferred until a task was actually received. It would crash, but without the code, I couldn't say why . I'm not sure I understand this point. Are you talking about a situation with 'setGroupsByEvent:YES' or 'setGroupsByEvent:NO'? Either way, an explicit call to 'beginUndoGrouping:' is *by definition* deferred, since it obviously can't happen the instant an event is dequeued. The length of time between dequeuing an event and invoking an undo manager method seems irrelevant. But I ask mainly out of curiosity because ... My fourth approach is to write my own bloody undo manager and have done with it. Result so far - bliss. I think that's a perfectly reasonably thing to have done. The functionality described by the NSUndoManager docs certainly doesn't *seem* difficult to re-implement. I haven't tried it, but now you have, and you've pretty much verified that fact. It's also interesting that the documentation: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/UndoArchitecture/Articles/UndoManager.html#//apple_ref/doc/uid/2205-CJBDJCCJ has this statement (in the overview): An undo manager collects all undo operations that occur within a single cycle of the run loop, so that performing an undo reverts all changes that occurred during the cycle. Taken literally, that would seem to say that NSUndoManager's API contract doesn't support undo actions that span events. FWIW. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSPopUpButton questions
On Dec 6, 2009, at 2:11 PM, Paul Bruneau wrote: On Dec 6, 2009, at 12:29 PM, Andy Lee wrote: Indeed, there are a few methods where the docs specifically recommend accessing the menu directly, e.g.: http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Classes/NSPopUpButton_Class/Reference/Reference.html#//apple_ref/occ/instm/NSPopUpButton/insertItemWithTitle:atIndex: Since this method searches for duplicate items, it should not be used if you are adding an item to an already populated menu with more than a few hundred items. Add items directly to the receiver's menu instead. Yeah, but the OP is right, the Application Menu and Pop-up List Programming Topics for Cocoa says this: To implement its menu, the button cell contains an NSMenu object, which in turn contains several NSMenuItem objects, one for each item in the menu. Avoid invoking methods on the NSMenu object directly, but instead invoke methods on theNSPopUpButton instance, which may need to do some housekeeping before invoking the appropriate methods on the menu. However, you can retrieve the menu with the NSPopUpButton method menu. The NSPopUpButton methods you use most often are the methods that tell you which item is selected. http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/MenuList/Articles/HowMenusWork.html Come to think of it, I could have searched for NSPopUpButton housekeeping. In any case, might be worth filing a documentation request for clarification. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Heap and memory zone queries
I have been using heap(1) to examine my apps heap. Small section for the auto_zone is shown. Queries follow. Zone auto_zone_0x2f6000: 70460 nodes (53237600 bytes) COUNT BYTES AVG CLASS_NAME TYPEBINARY = = === == == 21999 413223041878.4 non-object 13643 9837536 721.1 NSCFString ObjCCoreFoundation 4928236544 48.0 NSCFDictionary ObjCFoundation 4846 77536 16.0 NSCFNumber ObjCFoundation 4455161344 36.2 NSCFArray ObjCFoundation 1684242496 144.0 CTRun CFType CoreText 828169072 204.2 NSCFData ObjCFoundation 681 43584 64.0 NSBitmapImageRep ObjCAppKit 595 57120 96.0 NSConcretePointerArray ObjCFoundation 593132832 224.0 _NSViewAuxiliary ObjCAppKit 584 37376 64.0 NSKeyValueObservance ObjCFoundation 548 17536 32.0 NSCFSet ObjCFoundation 421 20208 48.0 _NSImageAuxiliary ObjCAppKit 421 13472 32.0 NSImage ObjCAppKit 406 19488 48.0 NSCellAuxiliary ObjCAppKit 351 11232 32.0 NSCalibratedRGBColor ObjCAppKit My app loads up some text and displays it in a couple of NSTextViews. The text occupies about 6MB. Loading the text increase real memory usage by about 50MB. 1. GC is on. Does that mean that all allocations invocation by NS*/CF* will be in the auto_zone? 2. Are the allocations accomplished using NSZoneMalloc and CFAllocatorAllocate? 3. grepping the heap(1) output shows little data allocated to NSText* instances. Is some of the 40MB of non-object data allocated by the NSText system? for glyph storage? 4. If 3 is not utterly incorrect - why isn't the memory utilised by the NSText system flagged as being allocated by NSText*. I thought that looking at the source for CFAllocatorAllocate() might be illuminating but it's not part of the open source CFLite release. Regards Jonathan Mitchell Developer http://www.mugginsoft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
It's not just me running into undo problems - ironically just got this from Xcode (requiring quit and relaunch to recover) while trying to build after tweaking my undo manager source: Internal error occurred while creating dependency graph: _registerUndoObject:: NSUndoManager 0x3befcb10 is in invalid state, must begin a group before registering undo. (Why it needs to register with Undo while building the dependency graph is another question - it's not as if you can undo that or would want to). On 07/12/2009, at 7:00 AM, Quincey Morris wrote: I tried it but it doesn't work. I forget the details now as this was my first approach and that was a long time ago, but basically the undo manager didn't tolerate having groups deferred until a task was actually received. It would crash, but without the code, I couldn't say why . I'm not sure I understand this point. Are you talking about a situation with 'setGroupsByEvent:YES' or 'setGroupsByEvent:NO'? Either way, an explicit call to 'beginUndoGrouping:' is *by definition* deferred, since it obviously can't happen the instant an event is dequeued. The length of time between dequeuing an event and invoking an undo manager method seems irrelevant. But I ask mainly out of curiosity because ... I think my understanding of how groups by event works was shaky at the time, so it's possible that I did something silly. Quite likely in fact. The deferrment was in a subclass of course, and it was in the situation where groupsByEvent was NO, and I wanted to group a bunch of drags. I set a flag on -beginUndoGrouping but did not call super. Then when a task was received from a drag change, if the flag was set I called super's -beginUndoGrouping just in time. That's when it crashed if I recall correctly. An undo manager collects all undo operations that occur within a single cycle of the run loop, so that performing an undo reverts all changes that occurred during the cycle. Taken literally, that would seem to say that NSUndoManager's API contract doesn't support undo actions that span events. FWIW. Yes, which does make me wonder how others have implemented undo of drags in general. Is there a simple solution staring me in the face and I just can't see it? I think I'm in a drag-induced stupor, but if I can get this to work elegantly perhaps I could be a drag artist ;-) --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to hook into the run loop?
On Dec 7, 2009, at 12:12 AM, Graham Cox wrote: Yes, which does make me wonder how others have implemented undo of drags in general. Is there a simple solution staring me in the face and I just can't see it? I believe the problems with multi-event undoing stem from the fact the you implemented the undo as a feature of the model when it could in fact be a controller feature - or another controller's whole purpose. While the model can't know why a certain key changed its value unless you give it more information than it really should have, a controller - let's say overseeing mouse handling - would know what is going on and could act accordingly. I'm not saying that things would be easier generally, but it doesn't necessarily have to be the model that cares about undo. In my app it is the model that handle undo, btw. :) Regards Markus -- __ Markus Spoettl smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
unrecognized selector error when calling -stringValue on NSNumber
Hi all, I am getting a very confusing error when I try to send a -stringValue message to an NSNumber object. Here is my code: NSNumber * primaryLanguageNumber = [self primaryLanguageID]; NSString * primaryLanguageString = [primaryLanguageNumber stringValue]; primaryLanguageID is of type NSNumber. When I am stepping through the debugger I can see the variable primaryLanguageNumber being set correctly. However, once I try to call stringValue on it I get the following error: 2009-12-06 16:51:24.525 Averroes[21013:a0f] -[NSCFString stringValue]: unrecognized selector sent to instance 0x1001d8a70 Doesn't that mean that it thinks primaryLanguageNumber is a string? And why would it see it as a string? Thanks for your help! Mazen Abdel-Rahman ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextView Horizontal Scrollbar bug
On Dec 5, 2009, at 9:14 AM, Eric Gorr wrote: On Dec 4, 2009, at 12:30 PM, Ross Carter wrote: On Dec 4, 2009, at 9:29 AM, Eric Gorr wrote: I've got a sample application at http://ericgorr.net/cocoadev/TextViewNoWrap.zip which demonstrates the problem I am seeing. Basically, there is just a text view on a window with a horizontal scrollbar which appears only when needed. I have set this text view up based on the instructions found in the Text System User Interface Layer Programming Guide for Cocoa (page 18 - Setting Up a Horizontal Scroll Bar). After ~77 characters or so, the horizontal scrollbar stops scrolling and I can't make any of the text beyond that visible in my view. This looks like a bug to me and one that is likely already known. Are there any known or suggested workarounds? In IB you have set the maximum width of the text view to 478, so that is the limit you are running up against. What is the suggested or common solution? I noticed, for example, the the height of the text view is set to 1,000,000 pixels and that if I set it to 478 a similar problem occurs. So, this implies one solution would be to simply set the width of the view to the arbitrarily large value of 1,000,000 pixels as well. So, the question becomes, why not just set it to FLT_MAX (or should it be CGFloat_Max?) - the same size as the text container? At this size, the scrollbars continue to work as one would expect. What I don't know is if there would be unexpected side effects or problems using FLT_MAX. By using FLT_MAX, and the same is likely true of 1,000,000 pixels, there would not seem to be a practical reason to worry about calculating how wide the text view needs to be to be able to scroll to all of the text. I can just set it once and forget about it. Would you agree? It's hard to say what is best in general, but IMHO there ought to be a practical limit to the width. I cannot imagine why anyone would want to keep scrolling and scrolling to the right to read all of one line of text, and then go back all the way to the left and start scrolling again to read the next line. The requirements of the particular application might call for a very wide text view, but at some point it is going to become too difficult to scroll without annoyance. For height, FLT_MAX is convenient because the vertical scroll is determined by the size of the text content, and the text system will use only as much height as necessary. For width, FLT_MAX is not so convenient, because width is determined by the longest line, and if a few lines are significantly longer than others, then most of the scrollview area will be empty white space. OTOH, if all lines are same width (e.g., monospaced font showing results of a SQL query), then it might make sense to set the width to a large value. It just depends on what text you are presenting and how the user will want to view it. -Ross ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: unrecognized selector error when calling -stringValue on NSNumber
On Dec 6, 2009, at 3:58 PM, Mazen M. Abdel-Rahman wrote: NSNumber * primaryLanguageNumber = [self primaryLanguageID]; NSString * primaryLanguageString = [primaryLanguageNumber stringValue]; primaryLanguageID is of type NSNumber. When I am stepping through the debugger I can see the variable primaryLanguageNumber being set correctly. However, once I try to call stringValue on it I get the following error: We would need to see the source code for -primaryLanguageID It's most likely returning a NSString, not a NSNumber. -- Dave Carrigan d...@rudedog.org Seattle, WA, USA ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: unrecognized selector error when calling -stringValue on NSNumber
On 6 dec 2009, at 15.58, Mazen M. Abdel-Rahman wrote: 2009-12-06 16:51:24.525 Averroes[21013:a0f] -[NSCFString stringValue]: unrecognized selector sent to instance 0x1001d8a70 Doesn't that mean that it thinks primaryLanguageNumber is a string? And why would it see it as a string? It doesn't think it is a string, it is a string. The most likely cause for this type of problem is a memory management error in your -primaryLanguageID method, where the object you returned has been deallocated, and a new object (here a string) has taken its place in memory. The second most likely cause is that you're simply returning the wrong type of object. j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Heap and memory zone queries
On 6 Dec 2009, at 13:57, jonat...@mugginsoft.com wrote: 1. GC is on. Does that mean that all allocations invocation by NS*/CF* will be in the auto_zone? Not necessarily. AppKit and CoreFoundation objects are still capable of allocating unmanaged memory (via malloc(), for instance) for their use under garbage collection, so long as they clean it up when they're done with it. 2. Are the allocations accomplished using NSZoneMalloc and CFAllocatorAllocate? Not sure on this one - I'll defer to someone more knowledgable. 3. grepping the heap(1) output shows little data allocated to NSText* instances. Is some of the 40MB of non-object data allocated by the NSText system? for glyph storage?` 4. If 3 is not utterly incorrect - why isn't the memory utilised by the NSText system flagged as being allocated by NSText*. All that #3 means is that the NSText objects themselves are small. heap(1) is relatively simplistic - it can't determine that one allocated object belongs to another. If a NSText object allocates a bunch of CTRun objects (for instance), those allocation will be billed against CTRun, not NSText.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: unrecognized selector error when calling -stringValue on NSNumber
Thanks! I found the problem - it is being assigned from a ComboBox - and the datasource for the ComboBox was returning a string - so I just had to change it to return a number. Bad mistake on my part. Thanks, Mazen On Dec 6, 2009, at 5:31 PM, Joar Wingfors wrote: On 6 dec 2009, at 15.58, Mazen M. Abdel-Rahman wrote: 2009-12-06 16:51:24.525 Averroes[21013:a0f] -[NSCFString stringValue]: unrecognized selector sent to instance 0x1001d8a70 Doesn't that mean that it thinks primaryLanguageNumber is a string? And why would it see it as a string? It doesn't think it is a string, it is a string. The most likely cause for this type of problem is a memory management error in your -primaryLanguageID method, where the object you returned has been deallocated, and a new object (here a string) has taken its place in memory. The second most likely cause is that you're simply returning the wrong type of object. j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: unrecognized selector error when calling -stringValue on NSNumber
On Dec 6, 2009, at 15:58, Mazen M. Abdel-Rahman wrote: NSNumber * primaryLanguageNumber = [self primaryLanguageID]; NSString * primaryLanguageString = [primaryLanguageNumber stringValue]; primaryLanguageID is of type NSNumber. When I am stepping through the debugger I can see the variable primaryLanguageNumber being set correctly. However, once I try to call stringValue on it I get the following error: 2009-12-06 16:51:24.525 Averroes[21013:a0f] -[NSCFString stringValue]: unrecognized selector sent to instance 0x1001d8a70 Doesn't that mean that it thinks primaryLanguageNumber is a string? And why would it see it as a string? It's seeing it as a string because it *is* a string. That is precisely what the error message is telling you -- that the class of the receiver is NSCFString instead of whatever you intended it to be. There's one fairly obvious scenario that causes this to happen. If you have a text field that modifies the primaryLanguageID property via a binding, and you edit the text field, then the new value will be a NSString regardless of whether the original value was a NSNumber (or anything else). If you want the modified property to be kept as a NSNumber, you must put a numeric formatter on the text field. (Or, if it's part of a table view, then you must put a numeric formatter on the column's text field cell.) (Or, write a setter for the primaryLanguageID property that takes a NSString parameter but stores a NSNumber in the instance variable.) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Draw rounded NSImage
I am trying to create a NSImage or NSImageCell with rounded corners
inside a NSTableView. I can't get anything to work. Here is the best I
have so far inside my custom NSCell:
- (void)drawInteriorWithFrame:(NSRect)frame inView:(NSView *)controlView {
if (thumbnailLink) {
NSURL *url = [NSURL URLWithString:thumbnailLink];
if (url) {
NSRect imageFrame = [self _imageFrameForInteriorFrame:frame];
NSImage *image = [[NSImage alloc] initWithContentsOfURL:url];
[image setScalesWhenResized:YES];
[image setSize:NSMakeSize(IMAGE_HEIGHT, IMAGE_WIDTH)];
[NSGraphicsContext saveGraphicsState];
imageFrame = NSInsetRect(imageFrame, 1, 1);
NSBezierPath *clipPath = [NSBezierPath
bezierPathWithRoundedRect:imageFrame cornerRadius:5.0];
[clipPath setWindingRule:NSEvenOddWindingRule];
[clipPath addClip];
[NSGraphicsContext restoreGraphicsState];
[image drawInRect:imageFrame fromRect:NSMakeRect(0, 0,
0, 0) operation:NSCompositeSourceIn fraction:1.0];
[image release];
}
}
...
Any ideas on how to do this?.
Thanks,
John
___
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Problem setting to-one relationship on NSManagedObject
I'm using the following code to create a new Core Data entity and populate a to-one relationship. Everything seems to be working okay except the setValue:forKey: to establish the to-one relationship. I've included the error messages below. Any ideas what I might be doing wrong? Thanks, Jim NSManagedObject *newTimeEntry = [NSEntityDescription insertNewObjectForEntityForName:@TimeEntry inManagedObjectContext:[selectProjectController managedObjectContext]]; NSManagedObject *project = [selectProjectController selection]; [newTimeEntry setValue:project forKey:@project]; 2009-12-04 17:32:58.833 Checkbook[1270:a0f] -[_NSControllerObjectProxy managedObjectContext]: unrecognized selector sent to instance 0x101efa0 2009-12-04 17:32:58.834 Checkbook[1270:a0f] -[_NSControllerObjectProxy managedObjectContext]: unrecognized selector sent to instance 0x101efa0 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSTableView reloadData works just on init.
Hi all,
I'm writing on this mailing list because I can't get an NSTableView to
display data.
I have a NSTableView in my xib, connected to a NSObject controller.
dataSource is my controller, and the IBOutlet is correctly connected
to the NSTableView.
This is my header
//
// ShortcutsTableController.h
//
#import Cocoa/Cocoa.h
@interface ShortcutsTableController : NSObject
NSTableViewDataSource {
IBOutlet NSTableView *shortcutsTable;
NSMutableArray *shortcutsList;
}
@property (assign) IBOutlet NSTableView *shortcutsTable;
- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:
(NSTableColumn *)tableColumn row:(int)row;
- (void)addItem:(NSString *)name :(NSString *)shortcut :(NSString *)
action;
- (void)reloadData;
@end
And this is my implementation file.
//
// ShortcutsTableController.m
//
#import ShortcutsTableController.h
@implementation ShortcutsTableController
@synthesize shortcutsTable;
- (id)init
{
self = [super init];
if (self != nil) {
shortcutsList = [[NSMutableArray alloc] init];
shortcutsTable = [[NSTableView alloc] init];
[shortcutsTable setDataSource:self];
[self reloadData];
}
return self;
}
- (void)addItem:(NSString *)name :(NSString *)shortcut :(NSString *)
action {
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:
name, @nameColumn,
shortcut, @shortcutColumn,
action, @actionColumn, nil];
[shortcutsList addObject:dict];
NSLog(@%@, shortcutsTable);
NSLog(@%@, shortcutsList);
[self reloadData];
}
- (void)reloadData {
[shortcutsTable reloadData];
}
-(NSInteger) numberOfRowsInTableView: (NSTableView *) tableView {
return [shortcutsList count];
}
- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:
(NSTableColumn *)tableColumn row:(int)row {
if (row != -1)
return [[shortcutsList objectAtIndex:row] objectForKey:
[tableColumn identifier]];
return nil;
}
@end
I can't display data in this TableView using addItem method. If I call
addItem from the init method all goes as expected, otherwise the
tableView is not updated. I don't know what's my mistake.
You know what's going wrong?
If yes, please help me. Your help would be very appreciated.
Sweet day,
—Albé___
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MacBook with USB GPS dongle and Core Location
I have a little GPS dongle that I have attached to my MacBook. Obviously I can access it via the serial port and read the NMEA strings directly from there, but I was wondering if it was possible to tie it into the Core Location API for a cleaner and more Apple-like way to get at the data? -- Jeff___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
SSH in my application
Hi. I've been hoping to write a number of applications that would be GUIs for some command line tools on a remote FreeBSD machine. The only problem is that i can't connect to it via SSH. I have googled this issue, and found some scenarios for username/password authorization, but I use RSA authorization, and they don't work for me. I am still contemplating using libssh, but it seems quite complex for me, so if there are any other alternatives, i'd be grateful. Thank you in advance. -- Best Regards, Timofey Danshin. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Localizing Xibs using bindings
I find it very annoying to localize Xibs by keeping a copy for each translation. It's both tedious and error-prone. I've found that by simply binding each button's title (or wharever other control you need) to the appropriate key of a NSDictionary object I can easily localize each item. No need to create tons of outlets for each control. Indeed I have no outlet at all. It works smoothly and I can send only .strings files to my translators. Since I haven't found no article on this solution, I was wondering if it's wrong or which problems may arise. Obvously I take care to keep control sizes large enough to host each translation. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Draw rounded NSImage
Your code restores the graphics state, which will remove your rounded rect
clipping path, before you draw the image.
If you draw the image before restoring the graphics state, you should be OK.
Also you should not need to explicitly set the winding rule.
HTH
Gideon
On 05/12/2009, at 7:22 AM, John Wright wrote:
I am trying to create a NSImage or NSImageCell with rounded corners
inside a NSTableView. I can't get anything to work. Here is the best I
have so far inside my custom NSCell:
- (void)drawInteriorWithFrame:(NSRect)frame inView:(NSView *)controlView {
if (thumbnailLink) {
NSURL *url = [NSURL URLWithString:thumbnailLink];
if (url) {
NSRect imageFrame = [self _imageFrameForInteriorFrame:frame];
NSImage *image = [[NSImage alloc] initWithContentsOfURL:url];
[image setScalesWhenResized:YES];
[image setSize:NSMakeSize(IMAGE_HEIGHT, IMAGE_WIDTH)];
[NSGraphicsContext saveGraphicsState];
imageFrame = NSInsetRect(imageFrame, 1, 1);
NSBezierPath *clipPath = [NSBezierPath
bezierPathWithRoundedRect:imageFrame cornerRadius:5.0];
[clipPath setWindingRule:NSEvenOddWindingRule];
[clipPath addClip];
[NSGraphicsContext restoreGraphicsState];
[image drawInRect:imageFrame fromRect:NSMakeRect(0, 0,
0, 0) operation:NSCompositeSourceIn fraction:1.0];
[image release];
}
}
...
Any ideas on how to do this?.
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Re: Draw rounded NSImage
On or about 12/6/09 8:11 PM, thus spake cocoa-dev-requ...@lists.apple.com
cocoa-dev-requ...@lists.apple.com:
Date: Fri, 4 Dec 2009 14:22:04 -0700
From: John Wright mrjjwri...@gmail.com
Subject: Draw rounded NSImage
I am trying to create a NSImage or NSImageCell with rounded corners
inside a NSTableView. I can't get anything to work. Here is the best I
have so far inside my custom NSCell:
- (void)drawInteriorWithFrame:(NSRect)frame inView:(NSView *)controlView {
if (thumbnailLink) {
NSURL *url = [NSURL URLWithString:thumbnailLink];
if (url) {
NSRect imageFrame = [self _imageFrameForInteriorFrame:frame];
NSImage *image = [[NSImage alloc] initWithContentsOfURL:url];
[image setScalesWhenResized:YES];
[image setSize:NSMakeSize(IMAGE_HEIGHT, IMAGE_WIDTH)];
[NSGraphicsContext saveGraphicsState];
imageFrame = NSInsetRect(imageFrame, 1, 1);
NSBezierPath *clipPath = [NSBezierPath
bezierPathWithRoundedRect:imageFrame cornerRadius:5.0];
[clipPath setWindingRule:NSEvenOddWindingRule];
[clipPath addClip];
[NSGraphicsContext restoreGraphicsState];
[image drawInRect:imageFrame fromRect:NSMakeRect(0, 0,
0, 0) operation:NSCompositeSourceIn fraction:1.0];
[image release];
}
}
You're clipping in a different graphics context from the one you draw the
image in, so the clipping doesn't affect the image. Look at the clipping
example on this page:
http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CocoaD
rawingGuide/GraphicsContexts/GraphicsContexts.html
Notice how the isolation of the graphics context surrounds both the clipping
and the image drawing.
In your example, though, since the clipping and the image are all the
drawing you're doing, there's no need to isolate a graphics context in any
case.
m.
--
matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/
pantes anthropoi tou eidenai oregontai phusei
Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf
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Re: Carbon menus in Cocoa app
I had some offline discussion with Eric around this. The problem was that I had stopped calling RunApplicationEventLoop() function, which installs an event handler that calls MenuSelect() in response to clicks on the menu bar. When I switched to Cocoa, MenuSelect() was not getting called. As a solution, I need to call MenuSelect() explicitly when the menu bar is clicked. This solves the problem. Thanks for all the help. Regards, Vikram Sethi On Wed, Dec 2, 2009 at 12:08 AM, Eric Schlegel eri...@apple.com wrote: On Nov 30, 2009, at 5:03 AM, Vikram Sethi wrote: Though the menu bar appears and the individual menu items get created and get added to the hierarchy (verified it while debugging), the menus do not open when I click on the menu bar. The menus are also Carbon based. They are defined as a ‘MBAR’ resource and the menu bar gets created using the GetNewMBar() API. This API has been marked ‘Not recommended’ though it is not deprecated. Documentation says use NIB files instead. I tried similar changes in another Carbon based app. This app opened fine and I was able to access the menus also. Unlike my app, this ref app defines the menus in a NIB file and creates the menu bar using the NIB file. I would not actually expect that there would be any difference in the behavior of the two applications based solely on how the menus are created. Regardless of whether you create your menus from an 'MBAR' or from a nib, once the menus are created, they should behave the same at runtime. It sounds to me that there is some other difference in the event-handling process of the two applications, which probably could be fixed in your real application without needing to move to nib files. Can you send me copies of both the working and non-working applications and I'll see what the difference is? -eric -- Ξ √ί...@m Ŝεth! Ξ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTableView reloadData works just on init.
On Dec 5, 2009, at 5:22 AM, Alberto Piu wrote: shortcutsTable = [[NSTableView alloc] init]; There are several problems here: 1. The designated initializer of views is -initWithFrame:, not -init. 2. Even if you got that right, it would still not work, because you are resetting the pointer to the table view object to a brand new object. The table view object you probably want to address is freeze-dried in the nib, and will be connected once the nib is loaded, and so you shouldn't overwrite the pointer with something else unless you want to programmatically get rid of it and create a new one (if you're working on a dynamic interface, for instance). 3. Even if you corrected that, you can't send messages to objects connected by IB outlet in -init, because it's most likely that the nib has not been loaded yet unless you explicitly loaded it there. If you need to initialize things in the UI, then you should do that in -awakeFromNib instead. HTH... Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Services Menu Heading
I have an app which offers an NSService. Works fine so far. But: I want this service to appear in the Services Menu under the Searching Header, together with Look Up in Dictionary and Search With Google. (Currently it appears under Text) So I checked the Info.plist of both Dictionary.app and Safari.app but could not find anything under NSServices which is different from my Info.plist. I also tried the + button in System Preferences → Keyboard → Keyboard Shortcuts → Services; a sheet is displayed, I can enter all relevant data, but the Add button remains disabled. What magic incantations do I have to perform to make my service appear under it's appropiate heading ? 10.6.2 Kind regards, Gerriet. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
On Sun, Dec 6, 2009 at 8:38 PM, Gerriet M. Denkmann gerr...@mdenkmann.de wrote: What magic incantations do I have to perform to make my service appear under it's appropiate heading ? The heading is determined by what UITs your service accepts. There are certain hardcoded exceptions to this rule. This is an area in which Apple has acknowledged needs improvement; file an enhancement request about what you'd like to see. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: SSH in my application
On Sat, Dec 5, 2009 at 8:57 AM, Timofey Danshin rus.mcdevelo...@gmail.com wrote: Hi. I've been hoping to write a number of applications that would be GUIs for some command line tools on a remote FreeBSD machine. The only problem is that i can't connect to it via SSH. This statement is virtually meaningless. What are you doing, what happens, and what have you tried? I have googled this issue, and found some scenarios for username/password authorization, but I use RSA authorization, and they don't work for me. Are you shelling out to ssh(1) or something? You need to provide detail, and that includes posting your source code. I am still contemplating using libssh, but it seems quite complex for me, so if there are any other alternatives, i'd be grateful. I always hate hacking things on top of SSH. Perhaps you can go with a raw TLS connection instead? Hook up netcat on the receiving end to pipe into the program(s) you wish to control, that way you don't involve a shell. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
On Dec 6, 2009, at 9:38 PM, Gerriet M. Denkmann wrote: What magic incantations do I have to perform to make my service appear under it's appropiate heading ? You need to set the undocumented key NSServiceCategory in the NSRequiredContext dictionary if the Keyboard preference pane misinterprets your service's function. See http://github.com/nickzman/symboliclinker/blob/master/SymbolicLinkerService-Info.plist for an example of how I did this in SymbolicLinker; I seem to recall that the preference pane threw the service into the Other category until I added that key-value... Yes, I have a bug open on this (#7213062)... Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
It's good list etiquette to keep replies on-list. On Sun, Dec 6, 2009 at 9:55 PM, Gerriet M. Denkmann gerr...@mdenkmann.de wrote: Yes, but Dictionary and Safari just have NSSendTypes = NSStringPboardType (no UTIs at all) and appear under the correct heading. Like I said, there are hardcoded exceptions. Any ideas what UTI I micht have to add? I don't think there are any UTIs you can add for the Searching category. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Problem setting to-one relationship on NSManagedObject
On Fri, Dec 4, 2009 at 3:37 PM, Jim Majure jim.maj...@mac.com wrote: NSManagedObject *project = [selectProjectController selection]; [newTimeEntry setValue:project forKey:@project]; As per the documentation, -selection returns a KVC-compliant proxy object. You can't turn around and hand that off to Core Data as if it were a full-fledged instance. Use -selectedObjects instead. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
On 7 Dec 2009, at 12:54, Nick Zitzmann wrote: On Dec 6, 2009, at 9:38 PM, Gerriet M. Denkmann wrote: What magic incantations do I have to perform to make my service appear under it's appropiate heading ? You need to set the undocumented key NSServiceCategory in the NSRequiredContext dictionary if the Keyboard preference pane misinterprets your service's function. See http://github.com/nickzman/symboliclinker/blob/master/SymbolicLinkerService-Info.plist for an example of how I did this in SymbolicLinker; I seem to recall that the preference pane threw the service into the Other category until I added that key-value... Following your example I added an NSRequiredContext with NSServiceCategory = public.item and now my service appears under Files and Folders. Which proves: 1. NSRequiredContext has some effect and: 2. public.item ist NOT the right thing so use. But what is? string.to.look.up.in.some.dictionary sounds not quite right. Any ideas? Kind regards, Gerriet. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
On Dec 6, 2009, at 11:10 PM, Gerriet M. Denkmann wrote: 2. public.item ist NOT the right thing so use. But what is? string.to.look.up.in.some.dictionary sounds not quite right. IIRC I asked about this before, and the reply I got said that there isn't a UTI or old-school pasteboard type for searching, and maybe one or two other categories. So Kyle is most likely correct that the items you see are hard-coded... You should probably file a bug and choose an alternate category. If your concern is the Very Serious Users will not take your software Very Seriously because there is a better category, then I would advise you not to worry about this... Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
On 7 Dec 2009, at 13:15, Nick Zitzmann wrote: On Dec 6, 2009, at 11:10 PM, Gerriet M. Denkmann wrote: 2. public.item ist NOT the right thing so use. But what is? string.to.look.up.in.some.dictionary sounds not quite right. IIRC I asked about this before, and the reply I got said that there isn't a UTI or old-school pasteboard type for searching, and maybe one or two other categories. So Kyle is most likely correct that the items you see are hard-coded... Well, after some desperate trial error I came up with: NSServiceCategary = Searching, which seems to work. Kind of obvious once found. Some documentation would have been even better (and would have saved me some time). Thanks to you and Kyle for your help. Kind regards, Gerriet. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Services Menu Heading
On Sun, Dec 6, 2009 at 10:24 PM, Gerriet M. Denkmann gerr...@mdenkmann.de wrote: NSServiceCategary = Searching, which seems to work. Kind of obvious once found. Some documentation would have been even better (and would have saved me some time). Apple obviously hasn't nailed down the Services stuff yet, as evidenced by the disappearing of the app icons in the Services menu (and their replacement with vastly inferior, ugly text strings). So don't be surprised if they take this functionality away. I imagine it is undocumented partly because Apple doesn't want a proliferation of categories, making them useless. File bugs anyway, since this is still in flux we should strike while the iron is hot! --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
breakout game - openGL or quartz?
Hi everyone, I wrote a breakout style game for actionscript3: http://collinatorstudios.com/dev/super_collins_breakout and it's been on my mind to make a version for the iPhone.. But before I do that, I thought it would be good to just make a version for plain old OS X... So before I do this, I wanted to ask the opinions of every one here-- Should I use OpenGL or quartz/core animation for my graphics drawing? I am thinking that I want to use OpenGL-- even though the game is 2D, I still would like to be able to do gradients and shading and glowing, etc.. Which I am assuming isn't going to be as easy to accomplish with quartz/core animation. Also if anyone recommends any particular books or online tutorials for learning how to draw simple rectangles and spheres, and make them glow, etc, that would be great. Thanks! Patrick J. Collins http://collinatorstudios.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: breakout game - openGL or quartz?
On Dec 6, 2009, at 10:48 PM, Patrick J. Collins wrote: So before I do this, I wanted to ask the opinions of every one here-- Should I use OpenGL or quartz/core animation for my graphics drawing? OpenGL. Come join the party: http://www.idevgames.com/forum/ -- Seth Willits ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: breakout game - openGL or quartz?
On Dec 6, 2009, at 11:48 PM, Patrick J. Collins wrote: and it's been on my mind to make a version for the iPhone.. But before I do that, I thought it would be good to just make a version for plain old OS X... So before I do this, I wanted to ask the opinions of every one here-- Should I use OpenGL or quartz/core animation for my graphics drawing? This thread is probably going to go OT, but I'd recommend OpenGL. There are plenty of examples of great 2D games that were implemented using a 3D API of some sort; World of Goo immediately comes to mind. Also if anyone recommends any particular books or online tutorials for learning how to draw simple rectangles and spheres, and make them glow, etc, that would be great. http://nehe.gamedev.net/ Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: breakout game - openGL or quartz?
cool game, patrick. i especially liked your sound. On Mon, Dec 7, 2009 at 2:05 AM, Nick Zitzmann n...@chronosnet.com wrote: On Dec 6, 2009, at 11:48 PM, Patrick J. Collins wrote: and it's been on my mind to make a version for the iPhone.. But before I do that, I thought it would be good to just make a version for plain old OS X... So before I do this, I wanted to ask the opinions of every one here-- Should I use OpenGL or quartz/core animation for my graphics drawing? This thread is probably going to go OT, but I'd recommend OpenGL. There are plenty of examples of great 2D games that were implemented using a 3D API of some sort; World of Goo immediately comes to mind. Also if anyone recommends any particular books or online tutorials for learning how to draw simple rectangles and spheres, and make them glow, etc, that would be great. http://nehe.gamedev.net/ Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/chunk1978%40gmail.com This email sent to chunk1...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
