Re: NSTreeController and insertObject:atArrangedObjectIndexPath:
On Jun 18, 2010, at 5:53 PM, Tony Romano wrote: Scenario: Adding a new node to a NSOutlineView backed by a NSTreeController. 1. Create a new internal object add add it to the data store(file system). This will be my representedObject in the treecontroller 2. Compute the path and call insertObject:atArrangedObjectIndexPath: the treecontroller does 2 things during the call to insertObject: 1. It calls my getter, children, and asks me for all the children under the parent node I have added the new node to. I give it the list INCLUDING the newly created node since it is now in the store. 2. Then it calls the setter, setChildren, and gives me the newChildren list. Which now has an additional copy of the new node, one from the getter call and one from the insertAt call. I know this for a fact because I purposely added some data to the newly created node for the insert to distinguish them. From the UI, the outlineview is correct, but my internal child list has the extra node. It's not displayed because the treecontroller optimizes when to ask me for a childlist. I have a work around which I don't like to basically lock out the getter method and just return the current child list(i.e the previous child list which doesn't have the new node added from the file system). Anyone experience this before and have a recommendation? I will qualify this by saying that I don't have much direct experience with using NSTreeController. In this case, it appears that the problem is that you are effectively adding the new object twice. Your step 1 adds it directly to your model. If this was done in a KVO compliant way, then the NSTreeController should take note of the change and update the NSOutlineView for you (making step 2 unnecessary). Alternatively, you could add the new object to your model through the NSTreeController (your step 2) and omit step 1. ___ 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: NSTreeController and insertObject:atArrangedObjectIndexPath:
You should only need add your object to your model (which needs to me KVO compliant). The tree controller will then notice, in response to the KVO notification that a new item was added. You should rarely, if ever, be direcly adding objects to the controller layer like this. Sent from my iPhone On Jun 18, 2010, at 18:53, Tony Romano tony...@hotmail.com wrote: Scenario: Adding a new node to a NSOutlineView backed by a NSTreeController. 1. Create a new internal object add add it to the data store(file system). This will be my representedObject in the treecontroller 2. Compute the path and call insertObject:atArrangedObjectIndexPath: the treecontroller does 2 things during the call to insertObject: 1. It calls my getter, children, and asks me for all the children under the parent node I have added the new node to. I give it the list INCLUDING the newly created node since it is now in the store. 2. Then it calls the setter, setChildren, and gives me the newChildren list. Which now has an additional copy of the new node, one from the getter call and one from the insertAt call. I know this for a fact because I purposely added some data to the newly created node for the insert to distinguish them. From the UI, the outlineview is correct, but my internal child list has the extra node. It's not displayed because the treecontroller optimizes when to ask me for a childlist. I have a work around which I don't like to basically lock out the getter method and just return the current child list(i.e the previous child list which doesn't have the new node added from the file system). Anyone experience this before and have a recommendation? TIA, -Tony ___ 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/clarkcox3%40gmail.com This email sent to clarkc...@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
Re: DnD International No symbol
On Wed, Jun 16, 2010 at 7:19 PM, Tony Romano tony...@hotmail.com wrote: Hmm... I'm returning the NSDragOperationNone now, all I get is an image of what is being dragged no other symbol and the outlineview won't accept the drop which is correct. When I have a valid selection, I get the other symbol for copy(green circle with plus sign), or for Move, the outlineview highlights the drop point. Right, that's what I would expect. Cocoa doesn't distinguish between can't drop and can drop by changing the cursor. I don't know about that. Consider trying to drag and drop a file onto a read-only disk image in the finder... you get the no smoking symbol cursor.___ 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
NSDatepicker inside a TableViewColumn
Hello, I'm working on a project that the user should fill columns of a tableview (that maps to a coredata entity) with dates. After googling I found some posts saying that is impossible to place a NSDatepicker inside a TableViewColumn, is that true? If not, why I can't drag a NSDatepicker to my TableViewColumn in IB? I should do it programatically? -- Atenciosamente, Cordially Junio Vitorino http://www.lamiscela.net 55 31 9901-7499 ___ 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
[iPhone] Detect touches on MKMapView
Hi, Can you detect touches in a MKMapView? if so how? If not, how can I? Thanks for the help Phil ___ 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: NSTreeController and insertObject:atArrangedObjectIndexPath:
Maybe I am missing the big picture here Something has to change in order to trigger the sequence of events. The UI is the outlineview, the controller is NSTreeController, and the store is the file system. The treecontroller stores objects that I have created to represent items in the store. Through bindings, the treecontroller asks for 2 things, my arranged list of items and getter/setter to respond from requests from the controller to update a child list. The scenario this thread is about is the user decides via a context menu to add a node. I tried both case where I add the folder to the file system first then called insertObject or called insertObject then add the folder to the file system. In both cases, both the setter and the getter are called. There is no direct binding to the filesystem. insertObject:atArrangedObjectIndexPath: requires I give it an object and an index path. So at a minimum, I have to create a blank node with some pertinent data . The object I created is a single node, not bound to anything at this point, just a pointer to a blob. When I make the call to insertObject, I expect two things to happen. 1. It adds this object to my arrangedObjects and then calls my setter telling me, Hey there has been a change, here is the new child list. 2. Add it to the NSOutlineView. since they are bound to each other. The controller does both of these. The problem is it ALSO calls the getter on the parent node of the indexPath provided and tells me to enumerate this node. If I updated the file system prior to calling insertObject, I would enumerate it and give the list back to the controller. Then, the insertObject code would proceed to add the newly created node, hence added twice in the child list. It seems like the controller lost track of the child list for this node and requested it again and perhaps this is where the problem is. I know for a fact it tracks child list otherwise the controller would enumerate the nodes every time the user opens a folder that had been previously opened. I guess the scenario the controller is trying to protect itself from the user adding a new node to a child that has not been enumerated(makes perfect sense). In this case the node doesn't not have a child list and it would have to ask for it first. But it shouldn't call the setter in this case. Under all conditions it calls both, this is a bug. Sorry for all the details. -Tony On Jun 19, 2010, at 6:22 AM, Clark S. Cox III wrote: You should only need add your object to your model (which needs to me KVO compliant). The tree controller will then notice, in response to the KVO notification that a new item was added. You should rarely, if ever, be direcly adding objects to the controller layer like this. Sent from my iPhone On Jun 18, 2010, at 18:53, Tony Romano tony...@hotmail.com wrote: Scenario: Adding a new node to a NSOutlineView backed by a NSTreeController. 1. Create a new internal object add add it to the data store(file system). This will be my representedObject in the treecontroller 2. Compute the path and call insertObject:atArrangedObjectIndexPath: the treecontroller does 2 things during the call to insertObject: 1. It calls my getter, children, and asks me for all the children under the parent node I have added the new node to. I give it the list INCLUDING the newly created node since it is now in the store. 2. Then it calls the setter, setChildren, and gives me the newChildren list. Which now has an additional copy of the new node, one from the getter call and one from the insertAt call. I know this for a fact because I purposely added some data to the newly created node for the insert to distinguish them. From the UI, the outlineview is correct, but my internal child list has the extra node. It's not displayed because the treecontroller optimizes when to ask me for a childlist. I have a work around which I don't like to basically lock out the getter method and just return the current child list(i.e the previous child list which doesn't have the new node added from the file system). Anyone experience this before and have a recommendation? TIA, -Tony ___ 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/clarkcox3%40gmail.com This email sent to clarkc...@gmail.com -Tony ___ 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:
Re: NSDatepicker inside a TableViewColumn
On 19 Jun 2010, at 19:46, Junio Gonçalves Vitorino wrote: Hello, I'm working on a project that the user should fill columns of a tableview (that maps to a coredata entity) with dates. After googling I found some posts saying that is impossible to place a NSDatepicker inside a TableViewColumn, is that true? If not, why I can't drag a NSDatepicker to my TableViewColumn in IB? I should do it programatically? NSDatepicker is not an NSCell subclass so you cannot display it in a table column. I would suggest that you display the formatted date in an NSTextField cell. The user can click the cell to bring up the NSDatePicker instance in a child window. Child window usage is demonstrated here: http://mattgemmell.com/files/source/maattachedwindow.zip Regards Jonathan Mitchell Developer Mugginsoft LLP 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
raising NSException between Controllers
I am having inconsistent problems when I call from Controller #1 one of 1's
methods which looks like:
- (void ) exitBgCalculationThread:(int)withStatus {
[controller2 haltBgCalculationThread:withStatus];
}
Controller #2's haltBgCalculationThread:withStatus eventually calls:
itsException = [NSException exceptionWithName:newErrorName
reason:newErrorReason
userInfo:nil];
[itsException raise]; // stops here and long jumps to
try-catch-finally Handler
// within EC's -calculateWorksheetRow:
The call to -raise enters the @catch block of a try-catch-finally Handler
within Controller #2 (the only such Handler anywhere). The only statement
within this @catch block is a call to NSLog. After this, the NSLog call falls
thru to the @finally portion which returns the correct error code. Controller
#2's calculation for loop immediately exits and through a call-back routine
sends a message back to Controller #1 which displays the appropriate error
message in the active window.
The correct error message is displayed; however, in seemingly random instances,
the above NSLog is never seen.
Whenever, I call Controller #2's -haltBgCalculationThread: from Controller #2,
everything works dandy; the lack of calling NSLog in random instances occurs
only when I call Controller #2's -haltBgCalculationThread: from Controller #1.
Maybe?? it is because I am bouncing between separate Controllers and am causing
mayhem.
Any psychic premonitions would be welcomed.
John Love
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merging NSWindow and NSView controllers
I have an applications with two controllers, one inherits NSWindowController and uses initWithWindowNibName:, and the other inherits NSViewController and uses initWithNibName: Yet, other than the init function which uses different *.nib files in each, the rest of the code in the controller is exactly the same since it draws the same stuff in each NSView of each NIB file (both of which are custom views). In one NIB file the NSView is inside an NSWindow, and in the other NIB it's just an NSView. But each view has the same graphics contents, so it's pretty much duplicated. If I make changes to one, I pretty much have to do it to the other as well. Anyone have ideas on how to merge these? ___ 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: merging NSWindow and NSView controllers
What kind of drawing in their NSView do these controllers do right now? Perhaps that code should be in an NSView subclass and that subclass should be used in both controllers' nibs. -- Chris On Jun 19, 2010, at 4:58 PM, Shane software.research.developm...@gmail.com wrote: I have an applications with two controllers, one inherits NSWindowController and uses initWithWindowNibName:, and the other inherits NSViewController and uses initWithNibName: Yet, other than the init function which uses different *.nib files in each, the rest of the code in the controller is exactly the same since it draws the same stuff in each NSView of each NIB file (both of which are custom views). In one NIB file the NSView is inside an NSWindow, and in the other NIB it's just an NSView. But each view has the same graphics contents, so it's pretty much duplicated. If I make changes to one, I pretty much have to do it to the other as well. Anyone have ideas on how to merge these? ___ 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/cmh%40me.com This email sent to c...@me.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: merging NSWindow and NSView controllers
On Sat, Jun 19, 2010 at 8:34 PM, Chris Hanson c...@me.com wrote: What kind of drawing in their NSView do these controllers do right now? Perhaps that code should be in an NSView subclass and that subclass should be used in both controllers' nibs. It's pretty simple line graph and plots using NSBezierPath from the drawRect: You may be right. I'm going to go think about that for a bit. ___ 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: raising NSException between Controllers
On 20/06/2010, at 8:35 AM, John Love wrote: Any psychic premonitions would be welcomed. At this stage the only advice I would offer is not to use exceptions for flow control. That way madness lies... --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
