Re: Open-source NSToolbar?
On Tue, Apr 8, 2008 at 12:25 PM, John Stiles [EMAIL PROTECTED] wrote: Well, I was thinking more along the lines of an RBSplitView, something you can just drop into your nib/code and suddenly your toolbars are better :) Is this what you're looking for? IB3 seems to have it natively, and this does it for IB2: http://belkadan.com/generictoolbar/ HTH Geoff ___ 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 [EMAIL PROTECTED]
Beginner TableView Questions
I have an NSTableView with several columns of checkboxes. Each of my
columns has an identifier. I also have an NSObjectController subclass
acting as both data source and delegate. I can populate the table with
some data.
However I am stuck on how to know when a checkbox has been clicked on
so I can update my model. I would prefer to get the info as a row
number in a particular column if that is possible.
I actually created an 'update' method in my controller and linked a
checkbox to this and can receive the message when a checkbox is
clicked but the sender doesn't have any obvious column/row info so I'm
pretty sure this isn't the way to go. Also I don't want to use
bindings as the data is C++;
- (void)update:(id) sender{
}
Any help greatly appreciated,
thanks
Peter
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NSPersistentDocument not saving after exception
Hi, My CoreData app (under 10.4) refuses to save the document once an exception has been thrown. Its a C++ exception thrown from a menu command after displaying an alert and it is caught. It happens both on Intel and PPC, in Debug and in Release mode. What happens after the exception, is that the save operation fails without any warning (not even a call to NSLog or [NSException raise]). If you choose quit after making changes, the save dialog appears. Choosing save then results in the app menu staying highlighted, which makes it look as though it is busy, while in reality it returns to the main event loop. Choosing the save command manually doesn't seem to do anything. When no exception has been thrown, saving works normally. Is this a known bug? Is there a workaround? It's almost impossible not to throw the exception (its the error routine deep inside a recursive descent parser)... Thanks, Theo ___ 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 [EMAIL PROTECTED]
Re: NSTreeController / CoreData still broken in 10.5?
On 7 Apr 2008, at 23:52, Adam Gerson wrote: However, I am using CoreData with my TreeController bound to a Managed Object Context. Can I still supply a contentArray in this situation? Adam On Sun, Apr 6, 2008 at 9:36 AM, Jonathan Dann [EMAIL PROTECTED] wrote: Hi Adam, I've just finished a blog post on this, it's not about using it with core data, but it may help you out. http://jonathandann.wordpress.com/2008/04/06/using-nstreecontroller/ Hope its useful Jon Jonathan P Dann: Trainee Medical Physicist - Homepage - Flickr contact | [EMAIL PROTECTED] - 07515-352-490 | skype - jonathandann I'm afraid I'll have to defer to those who know core data better than I. Sorry 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 [EMAIL PROTECTED]
More NSUndoManager woes
The docs for NSUndoManager state for -removeAllActionsWithTarget: that: An object that shares an NSUndoManager with other clients should invoke this message in its implementation of dealloc. There is a problem with this - if the object being dealloced is itself the parameter to an undo invocation, which in anything more complicated than a trivial test case it is likely to be, then Cocoa goes into an infinite loop when it starts discarding these invocations off the bottom of the stack. The undo manager releases the invocation which releases the object, which calls - removeAllActionsWithTarget:self, and boom - it all falls over. Can someone tell me if this recommendation is still correct, or what? The only way I can stabilize my app is simply not to attempt to do this, but I'm not really sure if there are any bad implications for NOT calling it. Is it me, or is NSUndoManager really, really fragile? -- S.O.S. ___ 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 [EMAIL PROTECTED]
Text with translucent Background
Dear All I am trying to set the background colour of a range of text in textview to a color with an alpha value less than 1. I get the text storage and set its NSBackgroundColorAttributeName attribute (through NSMutableAttributedString calls) to a colour with an alpha value less than 1. However when this background draws it draws the colour as solid and as I decrease the alpha value( towards 0.0 ) the colour goes towards black. Any suggestions Thanks Fred ___ 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 [EMAIL PROTECTED]
Re: Beginner TableView Questions
On 09/04/2008, at 5:43 PM, Peter Zegelin wrote:
I have an NSTableView with several columns of checkboxes. Each of
my columns has an identifier. I also have an NSObjectController
subclass acting as both data source and delegate. I can populate
the table with some data.
However I am stuck on how to know when a checkbox has been clicked
on so I can update my model. I would prefer to get the info as a
row number in a particular column if that is possible.
I actually created an 'update' method in my controller and linked a
checkbox to this and can receive the message when a checkbox is
clicked but the sender doesn't have any obvious column/row info so
I'm pretty sure this isn't the way to go. Also I don't want to use
bindings as the data is C++;
- (void)update:(id) sender{
}
Any help greatly appreciated,
thanks
Peter
You could try to get a ref to the table view by asking sender about
it's superview. Or you could just get the selected row from the
tableview itself. Presumably you have a reference to it. When the
button is clicked, the row it's in will be selected. Not sure, but I
think you can get the column info from the tableview as well.
HTH,
Ron
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core data and IB outlet binding
I have a custom NSCollectionViewItem
@interface FilterViewItem : NSCollectionViewItem {
IBOutlet NSTextField *filterExpression;
}
- (IBAction) applyFilter:(id)sender;
@end
It's getting filled via core data just fine. Then I've also bound the
filterExpression to the NSTextField in the prototype view. The same
way the button is bound.
@implementation FilterViewItem
- (IBAction) applyFilter:(id)sender
{
NSString *expression = [filterExpression stringValue];
NSLog(@expression %@, expression);
When the button is pressed it turns out that filterExpression (and
therefor also the stringValue of it) is nil.
I assume somehow I could probably also get the value from the
NSArrayController ...but
a) I am not sure how to get hold of the instance from within the
FilterViewItem
b) I would need to get access to the NSTextField at some stage anyway
What am I missing here?
cheers
--
Torsten
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How to get a notification which tells a folder name got changed
Hi, My app wants to know whether the name or the location of a folder got changed. Is there any notifications to tell those changes? Thanks in advance. Norio ___ 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 [EMAIL PROTECTED]
Re: How to get a notification which tells a folder name got changed
On Wed, Apr 9, 2008 at 11:13 AM, norio [EMAIL PROTECTED] wrote: Hi, My app wants to know whether the name or the location of a folder got changed. Is there any notifications to tell those changes? You might try the FSEvents api ___ 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 [EMAIL PROTECTED]
Re: Text with translucent Background
How are you drawing the text? If it's in a NSTextView you also need to set the background colour of the view to clear, I believe, and maybe you'll need to override the IsOpaque method to return NO. (I'm not that sure of myself here but I seem to recall something along these lines). -- S.O.S. On 9 Apr 2008, at 9:31 pm, [EMAIL PROTECTED] wrote: Dear All I am trying to set the background colour of a range of text in textview to a color with an alpha value less than 1. I get the text storage and set its NSBackgroundColorAttributeName attribute (through NSMutableAttributedString calls) to a colour with an alpha value less than 1. However when this background draws it draws the colour as solid and as I decrease the alpha value( towards 0.0 ) the colour goes towards black. Any suggestions Thanks Fred ___ 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/graham.cox%40bigpond.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: Beginner TableView Questions
If you implement the method:
- (void)tableView:(NSTableView *)aTableView setObjectValue:anObject
forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
in your datasource it will be called when the checkbox changes state -
anObject will be the value of the checkbox as an NSNumber and
aTableColumn's identifier will tell you which column it was part of,
and the rowIndex tells you the row.
--
S.O.S.
On 9 Apr 2008, at 5:43 pm, Peter Zegelin wrote:
I have an NSTableView with several columns of checkboxes. Each of my
columns has an identifier. I also have an NSObjectController
subclass acting as both data source and delegate. I can populate the
table with some data.
However I am stuck on how to know when a checkbox has been clicked
on so I can update my model. I would prefer to get the info as a row
number in a particular column if that is possible.
I actually created an 'update' method in my controller and linked a
checkbox to this and can receive the message when a checkbox is
clicked but the sender doesn't have any obvious column/row info so
I'm pretty sure this isn't the way to go. Also I don't want to use
bindings as the data is C++;
- (void)update:(id) sender{
}
Any help greatly appreciated,
thanks
Peter
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Layer-Hosting View on NSTabViewItem and switching Pages
Hi All, Maybe someone can Help Me?! I've created a NSTabView with two Pages (NSTabViewItems). On the second Page I got a Custom-View, that is hosting a Layer-Tree. This tree consist of a CATextLayer, within a CAScrollLayer, within a CALayer. The CALayer is the Root-Layer of the View. When I switch to the second Page, everything works as expected. But after switching back to the first Page, the Text within the CATextLayer remains displayed for about one second thereby disturbing the appearance of the first page. I've tried to hide the View, before switching the pages. I stop every Animation of the Layers immediately before the switch actually happens. I even tried to set the opacity of the Layers to 0.0 (and called setNeedsDisplay) but to no avail. Functionality of both Pages is as expected, but the short remains of the Text are really annoying. regards Joachim Deelen AQUARIUS-software http://www.aquarius-software.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 [EMAIL PROTECTED]
componentsToDisplayForPath (running as root)
Hi all, I am facing a problem in getting the correct display name while running as root. Actually while running as root if I call API's like componentsToDisplayForPath of NSFileManager or LSCopyDisplayNameForRef, they return me the display path components always in English as the root locale is English. I wish to get the display name as per the current user. Can anyone please let me know how can I get the display name of path components based on logged in user, while running as root. (I tried setting the euid to that of current user but that did not work). Thanks, Sharad! ___ 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 [EMAIL PROTECTED]
Re: How to store NSRect as Core Data attribute?
Hmm, seems I was misunderstanding what the built-in value transformers
do, and also had a problem with my custom transformer. The
NSUnarchiveFromData transformer won't work for this purpose. However
you can make it possible to store NSValue objects as Core Data
attributes by using a Transformable attribute, and writing your own
ValueTransformer. Here's a trivial value transformer that I just
tried, which allows storing any NSCoding compliant object as an
attribute value, including NSValues containing an NSRect. To use it,
add this class to your project, then create a Core Data attribute of
type Transformable, and set its Value Transformer Name to
MyValueTransformer.
// MyValueTransformer.h
#import Cocoa/Cocoa.h
@interface MyValueTransformer : NSValueTransformer {
}
@end
// MyValueTransformer.m
#import MyValueTransformer.h
@implementation MyValueTransformer
+ (Class)transformedValueClass
{
return [NSData class];
}
+ (BOOL)allowsReverseTransformation
{
return YES;
}
- (id)transformedValue:(id)value
{
return [NSArchiver archivedDataWithRootObject:value];
}
// input is expected to be an NSData object
- (id)reverseTransformedValue:(id)data
{
return [NSUnarchiver unarchiveObjectWithData:data];
}
@end
On Apr 9, 2008, at 1:16 AM, Adam P Jenkins wrote:
Actually on Leopard you should be able to store an NSValue as an
attribute, simply by using an attribute of type Transformable, and
setting the Value Transformer Name to NSUnarchiveFromData.
I just tried it though, and it seems like there is a bug which
prevents it from working. Basically it seems like any custom value
transformer you set for a Transformable attribute is simply ignored,
and it still just uses the default transformer, which tries to use a
KeyedArchiver and KeyedUnarchiver. I even tried creating my own
NSValueTransformer subclass and setting it as the value transformer
for a Transformable attribute. I can see that its init method gets
called, but none of its other methods ever get called when saving a
document. I just filed a bug with Apple about this, radar 5851442.
On Apr 3, 2008, at 5:31 AM, Daniel Thorpe wrote:
Thanks for the feedback on this.
I have gone with using a ...AsString attribute and using
NSRectFromString. Seems to work okay, although I've got no idea if
it's the most efficient method. I think Core Data seems a little
limited in that you can't store an NSValue object as an attribute,
I'd have thought that would be obvious, as we use that class to
store structs in collection objects
I hadn't considered localisation issues, but on my machine it
stores the data like so in an XML store:
attribute name=extentasstring type=string{{368, 260},
{2, 5}}/attribute
attribute name=centreofmassasstring type=string{368.75,
263.25}/attribute
which seems to make sense.
Cheers
Dan
On 2 Apr 2008, at 18:33, Uli Kusterer wrote:
On 02.04.2008, at 18:58, Thomas Engelmeier wrote:
That potentially means opening Pandoras can to localisation
issues. Any time you go that route, be sure to check that code
with switching decimal separators.
Potentially? Maybe. But I just tried it, and for me
NSStringFromRect() never uses localized separators. So, since it
always gives and takes periods as the decimal separator, I see no
problem. Do you have a particular test case where it behaves
differently?
Cheers,
-- Uli Kusterer
The Witnesses of TeachText are everywhere...
http://www.zathras.de
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Re: Core Animation layer-backed NSViews and mouse handling
Hi Matt, I hope what Scott said made sense (and what I said in the book, thanks BTW to Mike for the plug). If you have a layer backed view (i.e. you only call myButton.wantsLayer = YES) then you should not ever touch the layer, only use the methods that are exposed through the view and its animator. So if you are going to move a button, just move the button, don't touch the layer. My guess is that when you move the layer it moves but the view does not and that is why you are seeing the representation of the button move but you are not actually able to click it. Hopefully that answers the why, now on to the how to fix it... A couple of things; - if you only want to animate the moving or rotating of the button call the animator - if you don't need to rotate then you don't even need layer backing In other words move the button like this; [[myButton animator] setFrameOrigin:newLocation]; this line of code will cause the button (the whole thing, representation and view) to move to newLocation. You don't need layers in the picture for this to work. If you want to rotate the button and have things work properly you need something like this. myButton.superview.wantsLayer = YES; // this will cause superview and all subviews to be layer backed [[myButton animator] setFrameCenterRotation:myAngle]; HTH, -bd- http://bill.dudney.net/roller/objc On Apr 8, 2008, at 10:55 AM, Matt Long wrote: Hey Mani, I never solved the problem completely, however, I realized that what you need to do, or so it seems, is to somehow get notified when the animation has finished and then actually move the button to the position where the animation stopped. It seems really convoluted to me, but I can't find any further documentation as to why when you move the button you see it change, but clicking the button at its new location no longer works. You have to click in the original spot. Maybe someone else can shed some light on the why. -Matt On Apr 8, 2008, at 6:30 AM, Manfred Schwind wrote: Hi, I have a layer-backed NSView, say an NSButton (or a complete view hierarchy with many controls), and I am transforming - moving, rotating, etc. - its layer around. Now when I try to click the NSButton at its currently visible position, drawn by the CALayer, it does not work. I have to click into the area where the NSButton originally was, before transforming its layer. Is there an easy way to get this working as expected? Without re- implementing the whole mouse handling of all affected views by myself? I know that the mouse handling works when rotating a button with setFrameRotation, so Cocoa may internally be prepared for this kind situation. Would be really great if this would also work for general transformations done by CALayers. Regards, Mani -- http://www.mani.de iVolume - Loudness adjustment for iTunes. LittleSecrets - The encrypted notepad. ___ 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/matt.long%40matthew-long.com This email sent to [EMAIL PROTECTED] ___ 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/bdudney%40mac.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
How to force NSTableView to stop editing a text cell?
How can I force a text cell in NSTableView to stop editing? On 10.4 I could just tell the view's window to make the entire table the first responder and that did the trick, but on 10.5 this no longer works. I'm trying to do this from within the textDidEndEditing: notification method so that I can suppress the table behaviour that goes to the next row and starts editing there - I just want the text to end editing on typing return and the table view to go back to its previous state - same row selected but no text being edited. -- S.O.S. ___ 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 [EMAIL PROTECTED]
Re: Beginner TableView Questions
Thanks Graham - exactly what I needed.
kind regards,
Peter
On 09/04/2008, at 10:07 PM, Graham Cox wrote:
If you implement the method:
- (void)tableView:(NSTableView *)aTableView setObjectValue:anObject
forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
in your datasource it will be called when the checkbox changes state
- anObject will be the value of the checkbox as an NSNumber and
aTableColumn's identifier will tell you which column it was part
of, and the rowIndex tells you the row.
--
S.O.S.
On 9 Apr 2008, at 5:43 pm, Peter Zegelin wrote:
I have an NSTableView with several columns of checkboxes. Each of
my columns has an identifier. I also have an NSObjectController
subclass acting as both data source and delegate. I can populate
the table with some data.
However I am stuck on how to know when a checkbox has been clicked
on so I can update my model. I would prefer to get the info as a
row number in a particular column if that is possible.
I actually created an 'update' method in my controller and linked a
checkbox to this and can receive the message when a checkbox is
clicked but the sender doesn't have any obvious column/row info so
I'm pretty sure this isn't the way to go. Also I don't want to use
bindings as the data is C++;
- (void)update:(id) sender{
}
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Re: More NSUndoManager woes
On 9 Apr 2008, at 12:23, Graham Cox wrote: The docs for NSUndoManager state for -removeAllActionsWithTarget: that: An object that shares an NSUndoManager with other clients should invoke this message in its implementation of dealloc. There is a problem with this - if the object being dealloced is itself the parameter to an undo invocation, which in anything more complicated than a trivial test case it is likely to be, then Cocoa goes into an infinite loop when it starts discarding these invocations off the bottom of the stack. The undo manager releases the invocation which releases the object, which calls - removeAllActionsWithTarget:self, and boom - it all falls over. I'm not sure I see why you're getting into an infinite loop here. - dealloc should be being called at most once, right? And it shouldn't be possible to get into a situation where your object is the parameter of an undo operation if you're already in that object's -dealloc routine. If that's what you're seeing, you have a reference counting bug I think. Perhaps I'm misunderstanding the problem though? Kind regards, Alastair. -- http://alastairs-place.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 [EMAIL PROTECTED]
Re: More NSUndoManager woes
Hi Alastair, I'm not sure I fully understand it either - undo issues often make my head spin... I *think* what's happening is that NSUndoManager is unhappy that - removeAllActionsWithTarget: is being called while it is in the process of discarding an invocation off its own stack. Indeed dealloc is only getting called once but the NSUndoManager is being re-entered and that's what it seems to be griping about. If there are no actions with that target I guess you might get away with it, but it's quite likely that there are (and targets are weak refs so they can still be there even when the object is being dealloced), so maybe NSUndoManager is trying to remove items from its stack while it is already iterating over it discarding the invocations that are dropping out. It's perhaps analogous to the situation of removing objects from an array while iterating over it (but then again, who knows, the internal workings of NSUndoManager are off-limits). However you might be right about the ref counting bug, so I'll try and re-examine it from that angle. G. On 9 Apr 2008, at 11:09 pm, Alastair Houghton wrote: On 9 Apr 2008, at 12:23, Graham Cox wrote: The docs for NSUndoManager state for -removeAllActionsWithTarget: that: An object that shares an NSUndoManager with other clients should invoke this message in its implementation of dealloc. There is a problem with this - if the object being dealloced is itself the parameter to an undo invocation, which in anything more complicated than a trivial test case it is likely to be, then Cocoa goes into an infinite loop when it starts discarding these invocations off the bottom of the stack. The undo manager releases the invocation which releases the object, which calls - removeAllActionsWithTarget:self, and boom - it all falls over. I'm not sure I see why you're getting into an infinite loop here. - dealloc should be being called at most once, right? And it shouldn't be possible to get into a situation where your object is the parameter of an undo operation if you're already in that object's -dealloc routine. If that's what you're seeing, you have a reference counting bug I think. Perhaps I'm misunderstanding the problem though? Kind regards, Alastair. -- http://alastairs-place.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 [EMAIL PROTECTED]
Re: want to keep a main window still, not close
If you really mean main window in the NSWindow sense (makeMainWindow), then you will want to look at the windowShouldClose delegate method (as mentioned by Jack) and observe the NSWindowDidResignMainNotification notification for the window so you can set it back. More likely, though, you should be looking at NSPanel for your other windows. If they're stealing mainWindow status, NSPanel will fix that because it will refuse to become main. If NSPanel does not meet you need, you can make your own subclass of NSWindow or NSPanel to get what you're looking for. -Rob -- Rob Napier -- Software and Security Consulting -- http://robnapier.net On Apr 8, 2008, at 5:31 PM, norio wrote: Hi, My app is not a document-based application. And it has a main window and other windows. What I want to ask you to tell me is how to remain still the main window even if user option-clicks the close box of one of the other windows. I tried observing with its name nil and object nil. But I couldn't get which notification actually makes the windows close. Would you tell me how to remain the main window? Of course, it must close if user clicks the close box of the window. Any suggestions would be appreciated. Norio ___ 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 [EMAIL PROTECTED]
Re: How to force NSTableView to stop editing a text cell?
I found a simple solution - just call -abortEditing before asking the
window to make the table 1stR. I sometimes forget to look in the
superclass for a solution, in this case NSControl has one. Seem OK?
- (void)textDidEndEditing:(NSNotification*) aNotification
{
// this overrides the standard behaviour so that ending text editing
does not select a new cell for editing
// Instead the delegate is called as normal but then the table is
made 1stR.
NSString* theString = [[aNotification object] string];
NSTableColumn* theColumn = [[self tableColumns] objectAtIndex:[self
editedColumn]];
[[self delegate] tableView:self setObjectValue:theString
forTableColumn:theColumn row:[self selectedRow]];
[self abortEditing];// added
[[self window] makeFirstResponder:self];
}
--
S.O.S.
On 9 Apr 2008, at 10:51 pm, Graham Cox wrote:
How can I force a text cell in NSTableView to stop editing? On 10.4
I could just tell the view's window to make the entire table the
first responder and that did the trick, but on 10.5 this no longer
works.
I'm trying to do this from within the textDidEndEditing:
notification method so that I can suppress the table behaviour that
goes to the next row and starts editing there - I just want the text
to end editing on typing return and the table view to go back to its
previous state - same row selected but no text being edited.
--
S.O.S.
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Text with translucent Background
Graham Yes I am trying to draw it in a NSTextView. I tried what you suggested but it did not work. I played with multiple combinations of: [ textView setBackgroundColor:[ NSColor whiteColor ]/[ NSColor clearColor ]]; [ textView setDrawsBackground:NO/YES ]; and switching the textView isOpaque to on and off. I would look forward to any other suggestions. Thanks Fred On 9 Apr 2008, at 12:43, Graham Cox wrote: How are you drawing the text? If it's in a NSTextView you also need to set the background colour of the view to clear, I believe, and maybe you'll need to override the IsOpaque method to return NO. (I'm not that sure of myself here but I seem to recall something along these lines). -- S.O.S. On 9 Apr 2008, at 9:31 pm, [EMAIL PROTECTED] wrote: Dear All I am trying to set the background colour of a range of text in textview to a color with an alpha value less than 1. I get the text storage and set its NSBackgroundColorAttributeName attribute (through NSMutableAttributedString calls) to a colour with an alpha value less than 1. However when this background draws it draws the colour as solid and as I decrease the alpha value( towards 0.0 ) the colour goes towards black. Any suggestions Thanks Fred ___ 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/graham.cox%40bigpond.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
ToolTip for NSComboBox
Hi, I’d like to know how I can add a toolTip for a NSComboBox; The text should be the stringValue of the item the mouse is hovering on (actually I need a toolTip for the items in the comboBox as they are too long to be displayed) . The comboBox uses it’s own dataSource. Thanks! ___ Valentin Dan, Software Developer Direct: +1 905 886 1833 ext.3047 Email: HYPERLINK mailto:[EMAIL PROTECTED][EMAIL PROTECTED] Office: +40 356-710158 Masstech Group Inc. Fax:+40 256-220912 HYPERLINK http://www.masstechgroup.com/http://www.masstechgroup.com THIS MESSAGE IS INTENDED ONLY FOR THE ADDRESSEE. IT MAY CONTAIN PRIVILEGED OR CONFIDENTIAL INFORMATION.ANY UNAUTHORIZED DISCLOSURE IS STRICTLY PROHIBITED.IF YOU HAVE RECEIVED THIS MESSAGE IN ERROR, PLEASE NOTIFY US IMMEDIATELY SO THAT WE MAY CORRECT THE RECORDS. PLEASE THEN DELETE THE ORIGINAL MESSAGE. THANK YOU. No virus found in this outgoing message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.22.10/1366 - Release Date: 08.04.2008 17:03 ___ 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 [EMAIL PROTECTED]
Re: How to add number do Dock Icon like in Mail?
It worked like a charm. It is so easy since I was trying to draw over existing Icon manually that is so complicated in comparison with given way of doing it. Thanks, Samvel. On Apr 8, 2008, at 7:41 AM, [EMAIL PROTECTED] wrote: On leopard or later, you can just do: [[[NSApplication sharedApplication] dockTile] setBadgeLabel: [[NSNumber numberWithInt:42] stringValue]]; to put 42 as a badge Matt On 8 Apr 2008, at 14:06, Adam P Jenkins wrote: See [NSApplication setApplicationIconImage: (NSImage*)]. This changes the application's icon, and updates its dock icon. On Mar 30, 2008, at 10:42 AM, Samvel wrote: I'd like my application to show number of completed tasks in Dock Icon as it is done in Mail (number of unread emails). Anyone knows how to do that or where I can read about such functionality? ___ 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 [EMAIL PROTECTED]
Re: Layer-Hosting View on NSTabViewItem and switching Pages
Me again, I found a solution! Im switching Tab-Pages with selectTabViewItemWithIdentifier: After switching, I sent a Notification that a switch occurred thereby stopping all animations and hiding the TextLayer. This was the first mistake. Now I send the notification first, then switching the Tab-Page. The second mistake was: I hid the CATextLayer with setHidden:YES. But this triggers an implicit animation which takes some time. So I had to disable animation first: [CATransaction begin]; [CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions]; [textLayer setHidden:YES]; [CATransaction commit]; Now it works flawlessly regards Joachim Am 09.04.2008 um 14:15 schrieb Joachim Deelen: Hi All, Maybe someone can Help Me?! I've created a NSTabView with two Pages (NSTabViewItems). On the second Page I got a Custom-View, that is hosting a Layer-Tree. This tree consist of a CATextLayer, within a CAScrollLayer, within a CALayer. The CALayer is the Root-Layer of the View. When I switch to the second Page, everything works as expected. But after switching back to the first Page, the Text within the CATextLayer remains displayed for about one second thereby disturbing the appearance of the first page. I've tried to hide the View, before switching the pages. I stop every Animation of the Layers immediately before the switch actually happens. I even tried to set the opacity of the Layers to 0.0 (and called setNeedsDisplay) but to no avail. Functionality of both Pages is as expected, but the short remains of the Text are really annoying. regards Joachim Deelen AQUARIUS-software http://www.aquarius-software.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/cocoa-dev%40deelen.de This email sent to [EMAIL PROTECTED] Joachim Deelen AQUARIUS-software http://www.aquarius-software.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 [EMAIL PROTECTED]
Re: Saving NSFonts and changedFont: trouble
Hmm, I just noticed that if I do [mainWindow makeFirstResponder:textView]; It never works. In other words, when the text view IS the first responder, it breaks. Otherwise, it seems to work great. I'll be honest, I don't understand the responder chain, and I'm about to read through cocoa fundamentals, but: could somebody give me a hint how to intercept/receive the message sent directly to the textview? TIA /Thomas On Apr 8, 2008, at 4:41 PM, Thomas Backman wrote: Hey everybody. I'm working on a small app - to make the post shorter, lets just say that it displays (plain) text, but I want the user to be able to pick the font used (the same font should be used for all the text). Right now, I have a changedFont: method in my controller class, that changes the font successfully, and saves the font+size as a string and float. First off, is there a better way to save things? There has to be. Anyway, that wasn't my main question. More importantly, this does work, until you click in the textview... When that happens, changedFont: is no longer called, and the font stays the same. Why? (It works again after an app restart.) I've tried setting the textview delegate, and a sharedFontManager delegate, to my controller. (Not sure about what I'm doing here, as you might have noticed) I realize I'm short on info, but I'm not exactly sure what info to provide, so please ask if you need more. TIA Thomas ___ 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/serenity %40exscape.org This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: core data and IB outlet binding
No one a suggestion on how to track this down?
On Apr 9, 2008, at 12:31, Torsten Curdt wrote:
I have a custom NSCollectionViewItem
@interface FilterViewItem : NSCollectionViewItem {
IBOutlet NSTextField *filterExpression;
}
- (IBAction) applyFilter:(id)sender;
@end
It's getting filled via core data just fine. Then I've also bound
the filterExpression to the NSTextField in the prototype view. The
same way the button is bound.
@implementation FilterViewItem
- (IBAction) applyFilter:(id)sender
{
NSString *expression = [filterExpression stringValue];
NSLog(@expression %@, expression);
When the button is pressed it turns out that filterExpression (and
therefor also the stringValue of it) is nil.
I assume somehow I could probably also get the value from the
NSArrayController ...but
a) I am not sure how to get hold of the instance from within the
FilterViewItem
b) I would need to get access to the NSTextField at some stage anyway
What am I missing here?
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Re:Text With Translucent Background
In my experience, the window containing the view in question has to have an alpha value of 99% or less to have a view show up as transparent. - LG ___ 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 [EMAIL PROTECTED]
Tips to deploy applications to multiple Mac OS X versions
Hi, I'm trying to build a Cocoa application so that it can run on Mac OS X from version 10.3.9 to 10.5. I have 10.5 installed so the application runs fine on my system and on other Leopard systems. I haven't build a project for multiple platforms yet, so I tried to duplicate the main Xcode target and set different deployment target settings like myApp for Leopard MACOSX_DEPLOYMENT_TARGET set to 10.5 myApp for Tiger MACOSX_DEPLOYMENT_TARGET set to 10.4 myApp for Panther MACOSX_DEPLOYMENT_TARGET set to 10.3 The SDK I use is the Leopard one. Till now all Ok, but when I try to compile for example the Tiger target I get some errors (mainly about fast enumeration). Thus I have some questions: - It is correct to proceed like I described above? - Does the Objective-C 2.0 fast enumeration make sense to be used? I mean, if I don't use it, will my application perform worse on Leopard? - Is there a way to differentiate part of code by platform? I remember I saw in some files lines like this #if MACOSX_DEPLOYMENT_TARGET == MAC_OS_X_VERSION_10_4 #endif is this correct? Thanks, Lorenzo Bevilacqua ___ 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 [EMAIL PROTECTED]
Re: core data and IB outlet binding
on 4/9/08 4:31 AM, [EMAIL PROTECTED] purportedly said: When the button is pressed it turns out that filterExpression (and therefor also the stringValue of it) is nil. I assume somehow I could probably also get the value from the NSArrayController ...but a) I am not sure how to get hold of the instance from within the FilterViewItem b) I would need to get access to the NSTextField at some stage anyway What am I missing here? Is you outlet actually connected in IB? If it is properly connected, it shouldn't be nil. 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 [EMAIL PROTECTED]
Re: Text with translucent Background
Make sure the enclosing NSScrollView isn't drawing it's background: [textView enclosingScrollView] setDrawsBackground:NO]; -Rob -- Rob Napier -- Software and Security Consulting -- http://robnapier.net On Apr 9, 2008, at 9:39 AM, [EMAIL PROTECTED] wrote: Graham Yes I am trying to draw it in a NSTextView. I tried what you suggested but it did not work. I played with multiple combinations of: [ textView setBackgroundColor:[ NSColor whiteColor ]/[ NSColor clearColor ]]; [ textView setDrawsBackground:NO/YES ]; and switching the textView isOpaque to on and off. I would look forward to any other suggestions. Thanks Fred On 9 Apr 2008, at 12:43, Graham Cox wrote: How are you drawing the text? If it's in a NSTextView you also need to set the background colour of the view to clear, I believe, and maybe you'll need to override the IsOpaque method to return NO. (I'm not that sure of myself here but I seem to recall something along these lines). -- S.O.S. On 9 Apr 2008, at 9:31 pm, [EMAIL PROTECTED] wrote: Dear All I am trying to set the background colour of a range of text in textview to a color with an alpha value less than 1. I get the text storage and set its NSBackgroundColorAttributeName attribute (through NSMutableAttributedString calls) to a colour with an alpha value less than 1. However when this background draws it draws the colour as solid and as I decrease the alpha value( towards 0.0 ) the colour goes towards black. Any suggestions Thanks Fred ___ 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/graham.cox%40bigpond.com This email sent to [EMAIL PROTECTED] ___ 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/robnapier%40gmail.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: core data and IB outlet binding
On Apr 9, 2008, at 17:06, Keary Suska wrote: on 4/9/08 4:31 AM, [EMAIL PROTECTED] purportedly said: When the button is pressed it turns out that filterExpression (and therefor also the stringValue of it) is nil. I assume somehow I could probably also get the value from the NSArrayController ...but a) I am not sure how to get hold of the instance from within the FilterViewItem b) I would need to get access to the NSTextField at some stage anyway What am I missing here? Is you outlet actually connected in IB? If it is properly connected, it shouldn't be nil. Yeah ...that's connected. Which is why I am so surprised it's nil. Thanks for the response. cheers -- Torsten ___ 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 [EMAIL PROTECTED]
Re: Text with translucent Background
Still no luck. When I switch off the background of the scrollview the gray of the window in my test project comes through so it is clear all backgrounds are not being drawn but the selection colour still behaves in exactly the same way and draws in a solid colour. Thanks Fred On 9 Apr 2008, at 16:08, Robert Napier wrote: Make sure the enclosing NSScrollView isn't drawing it's background: [textView enclosingScrollView] setDrawsBackground:NO]; -Rob -- Rob Napier -- Software and Security Consulting -- http://robnapier.net On Apr 9, 2008, at 9:39 AM, [EMAIL PROTECTED] wrote: Graham Yes I am trying to draw it in a NSTextView. I tried what you suggested but it did not work. I played with multiple combinations of: [ textView setBackgroundColor:[ NSColor whiteColor ]/[ NSColor clearColor ]]; [ textView setDrawsBackground:NO/YES ]; and switching the textView isOpaque to on and off. I would look forward to any other suggestions. Thanks Fred On 9 Apr 2008, at 12:43, Graham Cox wrote: How are you drawing the text? If it's in a NSTextView you also need to set the background colour of the view to clear, I believe, and maybe you'll need to override the IsOpaque method to return NO. (I'm not that sure of myself here but I seem to recall something along these lines). -- S.O.S. On 9 Apr 2008, at 9:31 pm, [EMAIL PROTECTED] wrote: Dear All I am trying to set the background colour of a range of text in textview to a color with an alpha value less than 1. I get the text storage and set its NSBackgroundColorAttributeName attribute (through NSMutableAttributedString calls) to a colour with an alpha value less than 1. However when this background draws it draws the colour as solid and as I decrease the alpha value( towards 0.0 ) the colour goes towards black. Any suggestions Thanks Fred ___ 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/graham.cox%40bigpond.com This email sent to [EMAIL PROTECTED] ___ 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/robnapier %40gmail.com This email sent to [EMAIL PROTECTED] Reza Farhad --- Urban Design Limited [EMAIL PROTECTED] +44 (0)7795 430094 ___ 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 [EMAIL PROTECTED]
Re: fileHFSCreatorCode fileAttributesAtPath:traverseLink on app bundles
On Apr 8, 2008, at 6:37 PM, Mike wrote: If you really are using NSDirectoryEnumerator to scan a large hierarchy for applications, be sure to use an inner auto-release pool to clean up intermediate objects as you go. Also, once you detect that a path corresponds to a bundle (+[NSBundle bundleWithPath:] returns non-nil), use -[NSDirectoryEnumerator skipDescendents] to avoid enumerating the contents of the bundle -- unless you're really interested in applications buried inside of other applications, it will just be wasted time. Yeah, I found that out the hard way. I just check for bundle or .app and when I hit one, I immediately check its creator code. If it's not the one I want, I skip descendents and it works fine. Before that it would iterate everything and when it hit a huge app like Garageband it would take forever. And I am enumerating from the vol. root. I should point out that checking whether [NSBundle bundleWithPath:] returns non-nil is probably not what you want. You can create an NSBundle from any readable directory, and it will operate using whatever bundle structures are present within that directory. More likely what you are interested in is whether a particular directory is a file package, i.e., whether it is intended to be presented to the user as a single opaque object; this information can be obtained from NSWorkspace or Launch Services, which can also provide additional information such as whether a particular directory represents an application. Looking for an extension such as .app is not necessarily reliable for this purpose. Douglas Davidson ___ 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 [EMAIL PROTECTED]
some questions about creating image thumbnails
I have a situation where I've got a NSImage reference in memory and I'd like to save that image at full size and in a number of thumbnail sizes as quickly as possible. I know how to implement the basics, but I have no idea if I'm doing it in the most efficient way. In particular: To save the full sizes image I'm using some code like this: [[artworkImage TIFFRepresentationUsingCompression:NSTIFFCompressionNone factor:0] writeToFile:file atomically:NO] That brings up these questions: 1. If I don't care about on disk size is NSTIFFCompressionNone a fast way to write? (assuming that compression would take more time). Or maybe compression will actually save me time since the disk write will be faster? 2. And how does the image format effect read time, after all that's what I'm really trying to optimize in the first place by creating the caches? 2. Is TIFFRepresentation a good way to go or should I really be using some other framework like image IO or something else if I'm concerned with efficiency. For the thumbnails I'm just creating new NSImages of the correct size, locking focus on them, and then drawing the original image into the smaller image, and writing them out as above. Is there a smarter way? I've heard (or maybe imagined) that some image file formats will already embed their own thumbnails. Is that a better way to do things... what image formats support that if any? Thanks for any pointers. Jesse ___ 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 [EMAIL PROTECTED]
Re: Text with translucent Background
On Apr 9, 2008, at 8:28 AM, [EMAIL PROTECTED] wrote: Still no luck. When I switch off the background of the scrollview the gray of the window in my test project comes through so it is clear all backgrounds are not being drawn but the selection colour still behaves in exactly the same way and draws in a solid colour. The selection color and text background are currently drawn without opacity. We are aware of this limitation and hope to remove it in a future version. It is possible that you could alter this behavior yourself by overriding the NSLayoutManager method used for background drawing. Douglas Davidson ___ 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 [EMAIL PROTECTED]
Re: Programmatic binding not working both ways?
on 4/8/08 9:16 PM, [EMAIL PROTECTED] purportedly said: I'm using bind:toObject:withKeyPath:options: to programmatically set up bindings from a set of proxy objects (the receiver) to various properties on a model object, and while changes to the model properties are properly being reflected in the proxies, changes to the proxy properties are not being propagated back to the model as I expect. IIRC, bindings are only one-way. The two-way behavior you have seen is a function of NSObjectController and its subclasses. Your proxy objects will have to somehow communicate their changes to the model manually or using KVO. 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 [EMAIL PROTECTED]
Re: core data and IB outlet binding
Are you sure you're calling applyFilter after or during awakeFromNib?
i.e., you're not calling applyFilter in some sort of -init, right?
Mike
On Apr 9, 2008, at 3:31 AM, Torsten Curdt wrote:
I have a custom NSCollectionViewItem
@interface FilterViewItem : NSCollectionViewItem {
IBOutlet NSTextField *filterExpression;
}
- (IBAction) applyFilter:(id)sender;
@end
It's getting filled via core data just fine. Then I've also bound
the filterExpression to the NSTextField in the prototype view. The
same way the button is bound.
@implementation FilterViewItem
- (IBAction) applyFilter:(id)sender
{
NSString *expression = [filterExpression stringValue];
NSLog(@expression %@, expression);
When the button is pressed it turns out that filterExpression (and
therefor also the stringValue of it) is nil.
I assume somehow I could probably also get the value from the
NSArrayController ...but
a) I am not sure how to get hold of the instance from within the
FilterViewItem
b) I would need to get access to the NSTextField at some stage anyway
What am I missing here?
cheers
--
Torsten
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Re: core data and IB outlet binding
on 4/9/08 9:14 AM, [EMAIL PROTECTED] purportedly said: On Apr 9, 2008, at 17:06, Keary Suska wrote: on 4/9/08 4:31 AM, [EMAIL PROTECTED] purportedly said: When the button is pressed it turns out that filterExpression (and therefor also the stringValue of it) is nil. I assume somehow I could probably also get the value from the NSArrayController ...but a) I am not sure how to get hold of the instance from within the FilterViewItem b) I would need to get access to the NSTextField at some stage anyway What am I missing here? Is you outlet actually connected in IB? If it is properly connected, it shouldn't be nil. Yeah ...that's connected. Which is why I am so surprised it's nil. Well, AFAIK it's not possible for an outlet to be nil, as long as the object with the outlet is instantiated in the nib or is the file's owner. Otherwise, the outlet will never be set. Have you put an NSLog in the object's awakeFromNib to make sure your object is involved in the nib and the outlet is being set? Best, 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 [EMAIL PROTECTED]
Re: Open-source NSToolbar?
This is very cool and I would have used it if I had known about it earlier, but it isn't a replacement for NSToolbar so much as a simpler way to create one (which is awesome and should have been there all along). Geoff Beier wrote: On Tue, Apr 8, 2008 at 12:25 PM, John Stiles [EMAIL PROTECTED] wrote: Well, I was thinking more along the lines of an RBSplitView, something you can just drop into your nib/code and suddenly your toolbars are better :) Is this what you're looking for? IB3 seems to have it natively, and this does it for IB2: http://belkadan.com/generictoolbar/ HTH Geoff ___ 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 [EMAIL PROTECTED]
Re: NSUInteger question
On Apr 8, 2008, at 5:30 PM, Timothy Reaves wrote: What advantage does NSUinteger have over uint32? I realize that on a 64 bit machine, it would be a uint64. I think everyone is missing the point. The advantage is not None. Chris Parker already gave the first good advantage. The second is this: Use NSInteger/NSUInteger everywhere in your app. Recompile it for 64-bit and you instantly have a fully 64-bit version with very little work. That's a huge advantage. -corbin ___ 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 [EMAIL PROTECTED]
Re: NSUInteger question
On Wed, Apr 9, 2008 at 12:30 PM, Corbin Dunn [EMAIL PROTECTED] wrote: On Apr 8, 2008, at 5:30 PM, Timothy Reaves wrote: What advantage does NSUinteger have over uint32? I realize that on a 64 bit machine, it would be a uint64. I think everyone is missing the point. The advantage is not None. Chris Parker already gave the first good advantage. The second is this: Use NSInteger/NSUInteger everywhere in your app. Recompile it for 64-bit and you instantly have a fully 64-bit version with very little work. That's a huge advantage. But the same effect could be had simply by using long and unsigned long. If those are not well defined enough for you then you can use the types in stdint.h or sys/types.h so that you can pick a type which means exactly what you want. For example, if you're worried about future compatibility on an LLP64 system, intptr_t and uintptr_t are essentially equivalent to NS[U]Integer in meaning. My understanding is that the main advantage of NS[U]Integer is that it's still an int, not a long, on 32-bit. While the two types are essentially identical in the 32-bit world, they do have different @encode strings, so using NS[U]Integer avoids changing the signatures of methods which existed prior to 10.5. IMO it's dangerous to talk about a 64-bit conversion in this manner. Much like any other architecture change, there are a lot of different effects and blindly using safe types is not guaranteed to make your app work after a recompile. Likewise an application which uses non-NSInteger types may be written to Just Work when recompiled as 64-bit. Mike ___ 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 [EMAIL PROTECTED]
Re: some questions about creating image thumbnails
On Apr 9, 2008, at 8:32 AM, Jesse Grosjean wrote: I've heard (or maybe imagined) that some image file formats will already embed their own thumbnails. Is that a better way to do things... what image formats support that if any? This I do know a bit better. TIFF images can indeed store multiple representations, and it seems NSImage is well suited to using those representations. You might consider PNG as well. It cannot store multiple representations in one file, but it can compress many screen graphics (think screenshots of a typical application window and such) better than TIFF compressions while still keeping the original pixels. JPEG and other (usually unwritable) camera formats can store a thumbnail in their metadata, but I wouldn't recommend going that route. Not the only reason, but unless you're dealing with photographic material JPEG's lossy compression will not likely be suited to your needs. hope this helps, -natevw ___ 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 [EMAIL PROTECTED]
Re: some questions about creating image thumbnails
On Apr 9, 2008, at 8:32 AM, Jesse Grosjean wrote: 1. If I don't care about on disk size is NSTIFFCompressionNone a fast way to write? (assuming that compression would take more time). Or maybe compression will actually save me time since the disk write will be faster? I am by no means a performance expert (is anyone besides Shark?) but I suspect that nowadays you would much rather do a bit of extra work in CPU/memory than extra hauling from the hard drive. You'd want to confirm this yourself in a small prototype that kinda mimics the behaviour of your application, except many times over. Watch out for both NSImage and disk caching, though. If you oversimplify your code by (say) loading the same image over and over, your prototype might not end up mimicking your app correctly. Anyway, I haven't experimented with this much myself, so I should let someone else give you a real answer! -natevw ___ 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 [EMAIL PROTECTED]
Re: NSUInteger question
On 8 Apr 2008, at 6:19 PM, Christopher Nebel wrote: On Apr 8, 2008, at 5:30 PM, Timothy Reaves wrote: What advantage does NSUinteger have over uint32? I realize that on a 64 bit machine, it would be a uint64. Advantage? None, really. It's a question of what you're trying to express -- do you want specifically a 32-bit unsigned integer, or do you want an unsigned integer that reflects the architecture's word size? For instance, there's no particular reason to limit NSArray's capacity to exactly 2^32 items all the time, so -count is defined as returning an NSUInteger -- 2^32 in 32-bit, or 2^64 in 64- bit. (Also consider the analogous size_t type.) Well, that and this: The advantage is not having to do something like this: #if __LP64__ - (int)someMethodWhichTakes:(int)foo; #else - (int64_t)someMethodWhichTakes:(int64_t)foo; #endif and sprinkle those all over the place later too... This: - (NSInteger)someMethodWhichTakes:(NSInteger)foo; is far more readable. :) .chris ___ 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 [EMAIL PROTECTED]
Re: Tips to deploy applications to multiple Mac OS X versions
Using Obj-C 2.0 can give a little speed boost over previous versions of Mac OS X. For building for other system versions sometimes you need to link to the SDK of that version if you find some symbols are missing (depreciated or removed). If you want to use certain features on one platform and not another you can use the #if statements. #if MACOSX_DEPLOYMENT_TARGET == MAC_OS_X_VERSION_10_4 /* 10.4 code here */ #else /* code for all others */ #endif On Apr 9, 2008, at 8:43 AM, Lorenzo Bevilacqua wrote: I'm trying to build a Cocoa application so that it can run on Mac OS X from version 10.3.9 to 10.5. I have 10.5 installed so the application runs fine on my system and on other Leopard systems. I haven't build a project for multiple platforms yet, so I tried to duplicate the main Xcode target and set different deployment target settings like myApp for Leopard MACOSX_DEPLOYMENT_TARGET set to 10.5 myApp for Tiger MACOSX_DEPLOYMENT_TARGET set to 10.4 myApp for Panther MACOSX_DEPLOYMENT_TARGET set to 10.3 The SDK I use is the Leopard one. Till now all Ok, but when I try to compile for example the Tiger target I get some errors (mainly about fast enumeration). Thus I have some questions: - It is correct to proceed like I described above? - Does the Objective-C 2.0 fast enumeration make sense to be used? I mean, if I don't use it, will my application perform worse on Leopard? - Is there a way to differentiate part of code by platform? I remember I saw in some files lines like this #if MACOSX_DEPLOYMENT_TARGET == MAC_OS_X_VERSION_10_4 #endif is this correct? ___ 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 [EMAIL PROTECTED]
Re: Saving NSFonts and changedFont: trouble
Thomas, The responder chain is really the key to your question. The text view is getting the changeFont: message instead of your controller once it gets focus. How are you implementing the control that lets your user change fonts? Do you have a separate button/control for that or are you relying on the user to do it using the font panel? If you want the user to do it using the font panel you can either override -[NSTextView changeFont:] to save the value and call super's implementation or you can implement the delegate method textView:shouldChangeTextInRange:replacementString: When the replacement string passed into this method is nil it means only attributes were changed in the text view. If it is an empty string it means some text was removed. Note that there are also other methods in NSTextView for other changes that you may also need to override (changeColor:, changeAttributes:) if you want to capture more than just font changes. If you have a separate control for this you should not be messing with these methods at all, just write a method that will save the new font and apply to the text view. Todd Ransom Return Self Software http://returnself.com On Apr 9, 2008, at 10:25 AM, Thomas Backman wrote: Hmm, I just noticed that if I do [mainWindow makeFirstResponder:textView]; It never works. In other words, when the text view IS the first responder, it breaks. Otherwise, it seems to work great. I'll be honest, I don't understand the responder chain, and I'm about to read through cocoa fundamentals, but: could somebody give me a hint how to intercept/receive the message sent directly to the textview? TIA /Thomas On Apr 8, 2008, at 4:41 PM, Thomas Backman wrote: Hey everybody. I'm working on a small app - to make the post shorter, lets just say that it displays (plain) text, but I want the user to be able to pick the font used (the same font should be used for all the text). Right now, I have a changedFont: method in my controller class, that changes the font successfully, and saves the font+size as a string and float. First off, is there a better way to save things? There has to be. Anyway, that wasn't my main question. More importantly, this does work, until you click in the textview... When that happens, changedFont: is no longer called, and the font stays the same. Why? (It works again after an app restart.) I've tried setting the textview delegate, and a sharedFontManager delegate, to my controller. (Not sure about what I'm doing here, as you might have noticed) I realize I'm short on info, but I'm not exactly sure what info to provide, so please ask if you need more. TIA Thomas ___ 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/serenity%40exscape.org This email sent to [EMAIL PROTECTED] ___ 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/toddransom%40mac.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: Saving NSFonts and changedFont: trouble
The responder chain works something like this: user event-active application-application's key window-window's first responder if accepts, otherwise next view in line gets it. Whether or not delegate messages are sent is upto one of the responders in the chain to send them. The only sure way of intercepting messages to the textview is to make your own subclass of it and use that, overriding various methods. On Apr 9, 2008, at 8:25 AM, Thomas Backman wrote: Hmm, I just noticed that if I do [mainWindow makeFirstResponder:textView]; It never works. In other words, when the text view IS the first responder, it breaks. Otherwise, it seems to work great. I'll be honest, I don't understand the responder chain, and I'm about to read through cocoa fundamentals, but: could somebody give me a hint how to intercept/receive the message sent directly to the textview? ___ 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 [EMAIL PROTECTED]
System Preferences window is wider in Leopard? How do you make a Tiger compatible UI?
After designing the UI for a new System Preferences pane I've discovered that the window size in Leopard is 75 pixels wider than it was in Tiger or earlier OS releases. The net result appears to be that my shiny new UI is clipped on the right side in Tiger. Ugh. I've sent feedback that the docs are incorrect here and need to be updated... In the mean time, what is the correct way to handle this? From what I've read on the net adding springs in IB doesn't help. Would it be safe for me to resize the preferences window to be 75 pixels wider on Tiger while my pane is visible (and size it back down when my pane is deselected)? Do I have to make my UI narrower and have an obnoxious amount of dead space around the edges on Leopard? Thoughts? Dave ___ 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 [EMAIL PROTECTED]
Re: some questions about creating image thumbnails
On Wednesday, April 09, 2008, at 08:35AM, Jesse Grosjean [EMAIL PROTECTED] wrote: I have a situation where I've got a NSImage reference in memory and I'd like to save that image at full size and in a number of thumbnail sizes as quickly as possible. I know how to implement the basics, but I have no idea if I'm doing it in the most efficient way. In particular: To save the full sizes image I'm using some code like this: [[artworkImage TIFFRepresentationUsingCompression:NSTIFFCompressionNone factor:0] writeToFile:file atomically:NO] That brings up these questions: 1. If I don't care about on disk size is NSTIFFCompressionNone a fast way to write? (assuming that compression would take more time). Or maybe compression will actually save me time since the disk write will be faster? You really need to use Shark to figure this out for your use case. In my testing, compressing image data with zlib at the lowest compression level was a big win over zero compression in overall time spent to create an image, just because of the smaller reads. 2. And how does the image format effect read time, after all that's what I'm really trying to optimize in the first place by creating the caches? 2. Is TIFFRepresentation a good way to go or should I really be using some other framework like image IO or something else if I'm concerned with efficiency. Again, Shark will tell you if it's significant. Using ImageIO will require you to use CGImage, so you'd incur some additional overhead creating NSImages from CGImages. If you want lossless compression, PNG is good quality, but may be slow; same story for JPEG2000. I have performance problems drawing Finder icons that are apparently compressed internally as JPEG2000, so my suspicion is that it might be slow across the board. But don't take my word for it: use Shark :). For the thumbnails I'm just creating new NSImages of the correct size, locking focus on them, and then drawing the original image into the smaller image, and writing them out as above. Is there a smarter way? If you want more control, you could use CoreImage with a Lanczos filter, or use vImage on an NSBitmapImageRep. I'm using vImage for my thumbnail scaling, but it ended up being nontrivial. E-mail me offlist if you want the link; it's a BSD licensed framework for a grid view of images, with code for multithreaded scaling and creating/saving/loading thumbnails, mainly optimized for memory usage. hth, Adam ___ 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 [EMAIL PROTECTED]
Re: NSUInteger question
On Apr 9, 2008, at 9:39 AM, Michael Ash wrote: On Wed, Apr 9, 2008 at 12:30 PM, Corbin Dunn [EMAIL PROTECTED] wrote: On Apr 8, 2008, at 5:30 PM, Timothy Reaves wrote: What advantage does NSUinteger have over uint32? I realize that on a 64 bit machine, it would be a uint64. I think everyone is missing the point. The advantage is not None. Chris Parker already gave the first good advantage. The second is this: Use NSInteger/NSUInteger everywhere in your app. Recompile it for 64- bit and you instantly have a fully 64-bit version with very little work. That's a huge advantage. But the same effect could be had simply by using long and unsigned long. No, the same effect could not have been done, for one of the reasons you mention below. If those are not well defined enough for you then you can use the types in stdint.h or sys/types.h so that you can pick a type which means exactly what you want. For example, if you're worried about future compatibility on an LLP64 system, intptr_t and uintptr_t are essentially equivalent to NS[U]Integer in meaning. My understanding is that the main advantage of NS[U]Integer is that it's still an int, not a long, on 32-bit. While the two types are essentially identical in the 32-bit world, they do have different @encode strings, so using NS[U]Integer avoids changing the signatures of methods which existed prior to 10.5. Yes, this is true. IMO it's dangerous to talk about a 64-bit conversion in this manner. I disagree. It eases transition for apps that use the NSInteger type. Please read our release notes on the subject: http://developer.apple.com/releasenotes/Cocoa/Foundation.html#64Bit and the documentation: http://developer.apple.com/documentation/Cocoa/Conceptual/Cocoa64BitGuide/Introduction/chapter_1_section_1.html Much like any other architecture change, there are a lot of different effects and blindly using safe types is not guaranteed to make your app work after a recompile. Yes; there are many cases where blindly using NSInteger/NSUInteger can get you unexpected results. But, we document the typical pitfalls, and they are easy to avoid. Certain apps (like TextEdit) can simply be recompiled. Likewise an application which uses non-NSInteger types may be written to Just Work when recompiled as 64-bit. That is true too. You can easily recompile an app that uses int/float and still having it do most of its computations with 32-bit values, or use appropriate types where applicable. But that isn't a full 64-bit app unless you convert all uses of int to a larger type. You wouldn't write this on 32-bit: for (short i = 0; i ..; i++) And similarly, you shouldn't write this on 64-bit: for (int i = 0; i ..; i++) If you are using any Cocoa API's you should be using NSInteger/ NSUInteger, and not doing so would require much more work. The question was what advantage is there for using NSInteger/ NSUInteger. The answer is 64-bit transition of your Cocoa apps. -corbin ___ 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 [EMAIL PROTECTED]
Re: Saving NSFonts and changedFont: trouble
Thanks! That worked indeed. I went the subclass route. In case someone
stumbles upon this via google, my solution was (in my NSTextView
subclass):
- (void)changeFont:(id)sender {
NSFont *oldFont = [self font];
NSFont *newFont = [sender convertFont:oldFont];
[self setFont:newFont];
// save newFont to defaults here...
[super changeFont:sender];
}
/Thomas
On Apr 9, 2008, at 6:55 PM, Todd Ransom wrote:
Thomas,
The responder chain is really the key to your question. The text
view is getting the changeFont: message instead of your controller
once it gets focus. How are you implementing the control that lets
your user change fonts? Do you have a separate button/control for
that or are you relying on the user to do it using the font panel?
If you want the user to do it using the font panel you can either
override -[NSTextView changeFont:] to save the value and call
super's implementation or you can implement the delegate method
textView:shouldChangeTextInRange:replacementString: When the
replacement string passed into this method is nil it means only
attributes were changed in the text view. If it is an empty string
it means some text was removed. Note that there are also other
methods in NSTextView for other changes that you may also need to
override (changeColor:, changeAttributes:) if you want to capture
more than just font changes.
If you have a separate control for this you should not be messing
with these methods at all, just write a method that will save the
new font and apply to the text view.
Todd Ransom
Return Self Software
http://returnself.com
On Apr 9, 2008, at 10:25 AM, Thomas Backman wrote:
Hmm, I just noticed that if I do
[mainWindow makeFirstResponder:textView];
It never works. In other words, when the text view IS the first
responder, it breaks. Otherwise, it seems to work great.
I'll be honest, I don't understand the responder chain, and I'm
about to read through cocoa fundamentals, but: could somebody give
me a hint how to intercept/receive the message sent directly to the
textview?
TIA
/Thomas
On Apr 8, 2008, at 4:41 PM, Thomas Backman wrote:
Hey everybody. I'm working on a small app - to make the post
shorter, lets just say that it displays (plain) text, but I want
the user to be able to pick the font used (the same font should be
used for all the text).
Right now, I have a changedFont: method in my controller class,
that changes the font successfully, and saves the font+size as a
string and float. First off, is there a better way to save things?
There has to be. Anyway, that wasn't my main question. More
importantly, this does work, until you click in the textview...
When that happens, changedFont: is no longer called, and the font
stays the same.
Why? (It works again after an app restart.)
I've tried setting the textview delegate, and a sharedFontManager
delegate, to my controller. (Not sure about what I'm doing here,
as you might have noticed)
I realize I'm short on info, but I'm not exactly sure what info to
provide, so please ask if you need more.
TIA
Thomas
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[OFF] unicode characters
Sorry for the off-topic post but this is the best place to get info ( lots of smart people ). I have a string that is composed unicode characters. I want to be able to transform that string into all ascii characters by transforming all non-ascii characters into their ascii equivalent. ex: ü = u é = e Anyone know of a way to do that or do i need a lookup table with all characters and their equivalents? thx AC___ 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 [EMAIL PROTECTED]
Re: System Preferences window is wider in Leopard? How do you make a Tiger compatible UI?
Try this. The firstRun variable makes sure the pane is only resized
once, or System Preferences will crash. Hope this helps.
- (NSView *) mainView {
// Return a different sized view for each version of OS X
// Leopard has a wider system prefs window than Tiger
// Include the Carbon framework for the Gestalt function
SInt32 MacOSXVersionNumber;
if (Gestalt(gestaltSystemVersion, MacOSXVersionNumber) == noErr) {
if (MacOSXVersionNumber = 0x01050) {
if (firstRun == YES) {
[prefWindow setContentSize:NSMakeSize(594.0, 354.0)];
// Resize for Tiger
firstRun = NO;
}
}
}
return [super mainView];
}
On Wed, Apr 9, 2008 at 7:06 PM, Dave Camp [EMAIL PROTECTED] wrote:
After designing the UI for a new System Preferences pane I've discovered
that the window size in Leopard is 75 pixels wider than it was in Tiger or
earlier OS releases. The net result appears to be that my shiny new UI is
clipped on the right side in Tiger. Ugh. I've sent feedback that the docs
are incorrect here and need to be updated...
In the mean time, what is the correct way to handle this?
From what I've read on the net adding springs in IB doesn't help. Would it
be safe for me to resize the preferences window to be 75 pixels wider on
Tiger while my pane is visible (and size it back down when my pane is
deselected)?
Do I have to make my UI narrower and have an obnoxious amount of dead space
around the edges on Leopard?
Thoughts?
Dave
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what is the proper place to store application settings
Hey, I started programming with Cocoa recently. Created an application which makes REST calls and displays the response values in a simple window. For each particular REST function I have a corresponding class which defines functionality for constructing a proper URL needed to call a function, initiating the call and informing the interested delegate object once the REST response is received. Right now I have the host part of the url hardcoded in each class that represents a different REST function call. I know I should store it in one place, not sure what's the recommended place in cocoa apps. I was thinking maybe one class with #defines and then all the REST representing classes would include that? Also I see some docs mentioning plist setting files, could that be a better place? Based on my environment (debug, testing, prod) this url will change as well. Thanks for any recommendations, L ___ 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 [EMAIL PROTECTED]
Re: [OFF] unicode characters
On Apr 9, 2008, at 11:14 AM, Alexander Cohen wrote: Sorry for the off-topic post but this is the best place to get info ( lots of smart people ). I have a string that is composed unicode characters. I want to be able to transform that string into all ascii characters by transforming all non-ascii characters into their ascii equivalent. ex: ü = u é = e Anyone know of a way to do that or do i need a lookup table with all characters and their equivalents? Take a look at CFStringTransform(). The details will depend on exactly what you want to do. Douglas Davidson ___ 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 [EMAIL PROTECTED]
Re: what is the proper place to store application settings
I'm assuming that these will change, but should not be changed by the user, correct? It seems to me that you'd want to avoid compiling them into your classes using #define, I think a property list included as bundle resource is the way to go. http://developer.apple.com/documentation/Cocoa/Conceptual/PropertyLists/PropertyLists.html On Apr 9, 2008, at 2:19 PM, Laimonas Simutis wrote: I started programming with Cocoa recently. Created an application which makes REST calls and displays the response values in a simple window. For each particular REST function I have a corresponding class which defines functionality for constructing a proper URL needed to call a function, initiating the call and informing the interested delegate object once the REST response is received. Right now I have the host part of the url hardcoded in each class that represents a different REST function call. I know I should store it in one place, not sure what's the recommended place in cocoa apps. I was thinking maybe one class with #defines and then all the REST representing classes would include that? Also I see some docs mentioning plist setting files, could that be a better place? Based on my environment (debug, testing, prod) this url will change as well. Thanks for any recommendations, ___ 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 [EMAIL PROTECTED]
looking for sample code to read UUID from a disk volume.
Hi All. I can see from diskutil that a volume has a UUID: [EMAIL PROTECTED]diskutil info / Device Node:/dev/disk0s3 Device Identifier: disk0s3 Mount Point:/ Volume Name:Tiger File System:Journaled HFS+ Journal size 16384 k at offset 0x3e Owners: Enabled Partition Type: Apple_HFS Bootable: Is bootable Media Type: Generic Protocol: SATA SMART Status: Verified UUID: 00826A1E-B3EB-3764-8CB0-867AFBB0FF83 Total Size: 123.7 GB Free Space: 9.7 GB Read Only: No Ejectable: No I am looking for sample code to obtain the UUID. Any pointers are greatly appreciated! -Kenny ___ 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 [EMAIL PROTECTED]
Re: looking for sample code to read UUID from a disk volume.
There may well be sample code to do this, but I initially learned to
do this from IORegistryExplorer.app (which is open sourced under
Darwin, IOKitTools). For all I know diskutil is in Darwin as well...
Do an ioreg -l in your Terminal window, search on UUID. Note that
each volume/partition has something like :
| | | +-o [EMAIL PROTECTED] class IOMedia,
registered, matched, active, busy 0, retain count 9
| | | | | {
| | | | | Leaf = Yes
| | | | | Writable = Yes
| | | | | BSD Minor = 2
| | | | | IOBusyInterest = IOCommand is not
serializable
| | | | | Partition ID = 2
| | | | | Preferred Block Size = 512
| | | | | UUID = some value
Now, I found the same info in IORegistryExplorer by exploring
IODeviceTree/[EMAIL PROTECTED]/SATA (etc, etc). If IORegistryExplorer can
display it then you can find out how as well.
The IORegistryEntryXXX routines are your friends (IOKitLib.h in the
IOKit framework).
If someone posts with sample code, then bonus ;-)
And note that only a GUID partition table scheme will yield partitions
with a UUID. The old style Apple Partition Map will not (so any
legacy or even current PPC machines).
Cheers,
-H.
On 09/04/2008, Kenny Leung [EMAIL PROTECTED] wrote:
Hi All.
I can see from diskutil that a volume has a UUID:
[EMAIL PROTECTED]diskutil info /
Device Node:/dev/disk0s3
Device Identifier: disk0s3
Mount Point:/
Volume Name:Tiger
File System:Journaled HFS+
Journal size 16384 k at offset 0x3e
Owners: Enabled
Partition Type: Apple_HFS
Bootable: Is bootable
Media Type: Generic
Protocol: SATA
SMART Status: Verified
UUID: 00826A1E-B3EB-3764-8CB0-867AFBB0FF83
Total Size: 123.7 GB
Free Space: 9.7 GB
Read Only: No
Ejectable: No
I am looking for sample code to obtain the UUID. Any pointers are greatly
appreciated!
-Kenny
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Re: what is the proper place to store application settings
On Wed, Apr 9, 2008 at 2:41 PM, Jeff LaMarche [EMAIL PROTECTED] wrote: I'm assuming that these will change, but should not be changed by the user, correct? It seems to me that you'd want to avoid compiling them into your classes using #define, I think a property list included as bundle resource is the way to go. http://developer.apple.com/documentation/Cocoa/Conceptual/PropertyLists/PropertyLists.html I really think the user preferences system is the best choice here. That way, a software update isn't necessary if the URL changes and users can change it themselves if necessary. Search the documentation for NSUserDefaults. -- I.S. ___ 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 [EMAIL PROTECTED]
Re: NSUInteger question
On Wed, Apr 9, 2008 at 1:43 PM, Corbin Dunn [EMAIL PROTECTED] wrote: On Apr 9, 2008, at 9:39 AM, Michael Ash wrote: On Wed, Apr 9, 2008 at 12:30 PM, Corbin Dunn [EMAIL PROTECTED] wrote: On Apr 8, 2008, at 5:30 PM, Timothy Reaves wrote: What advantage does NSUinteger have over uint32? I realize that on a 64 bit machine, it would be a uint64. I think everyone is missing the point. The advantage is not None. Chris Parker already gave the first good advantage. The second is this: Use NSInteger/NSUInteger everywhere in your app. Recompile it for 64-bit and you instantly have a fully 64-bit version with very little work. That's a huge advantage. But the same effect could be had simply by using long and unsigned long. No, the same effect could not have been done, for one of the reasons you mention below. Except that effect is basically only useful for Apple, not for third parties, and I'm speaking from the perspective of a third party. Preserving exact method signatures is great when you need binary compatibility. Generally we don't need to preserve them, though. Simply having a binary compatible method signature is enough; everything works just fine on 32-bit if you declare long but the caller thinks that it's int. The one exception to this is passing pointer arguments around, where the compiler will generate a warning. This is rare, though; Cocoa doesn't have a lot of places which take NSInteger *. Otherwise, using long and unsigned long is essentially equivalent to using NSInteger and NSUInteger. Apple even lets us define those two types to only use long. IMO it's dangerous to talk about a 64-bit conversion in this manner. I disagree. It eases transition for apps that use the NSInteger type. Please read our release notes on the subject: http://developer.apple.com/releasenotes/Cocoa/Foundation.html#64Bit and the documentation: http://developer.apple.com/documentation/Cocoa/Conceptual/Cocoa64BitGuide/Introduction/chapter_1_section_1.html I have read both, I simply don't agree with the recommendation to use NSInteger everywhere. Much like any other architecture change, there are a lot of different effects and blindly using safe types is not guaranteed to make your app work after a recompile. Yes; there are many cases where blindly using NSInteger/NSUInteger can get you unexpected results. But, we document the typical pitfalls, and they are easy to avoid. Certain apps (like TextEdit) can simply be recompiled. Aside from a couple of places where it uses deprecated APIs, the 10.4 version of TextEdit can *also* simply be recompiled. I didn't test it thoroughly but it appeared to work just fine when compiled as x86_64. (There is one bug in the scripting system due to the change, revealed by a warning. There may be others.) Likewise an application which uses non-NSInteger types may be written to Just Work when recompiled as 64-bit. That is true too. You can easily recompile an app that uses int/float and still having it do most of its computations with 32-bit values, or use appropriate types where applicable. But that isn't a full 64-bit app unless you convert all uses of int to a larger type. You wouldn't write this on 32-bit: for (short i = 0; i ..; i++) And similarly, you shouldn't write this on 64-bit: for (int i = 0; i ..; i++) I find this whole line of reasoning a bit difficult to follow. The essence of 32/64 bitness in the context we're discussing is pointer size, not integer size. Indeed, half of Apple's supported 64-bit architectures also support native 64-bit integer computation when in 32-bit mode. I would think that being a full 64-bit app would be related to being able to deal with data that goes beyond the limit of the 32-bit address space, not the sizes of the integers you use in loops. And while the two concepts are related, they are only loosely so. There are plenty of cases where using a 32-bit quantity in 64-bit land will always be sufficient, and where using a 64-bit quantity in 32-bit land is always necessary. I also think it's dangerous to talk about these types as though they solve everything when they don't, even if they do help. If you are using any Cocoa API's you should be using NSInteger/NSUInteger, and not doing so would require much more work. What primitive types you use ought to be unrelated to what APIs you use. After all, the need to be 64-bit clean exists whether you use Cocoa or not. The question was what advantage is there for using NSInteger/NSUInteger. The answer is 64-bit transition of your Cocoa apps. It's certainly helpful, it's just neither necessary nor sufficient. Mike ___ 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
Re: mouseDown on NSScrollView
The NSScrollers are getting the mouseDown events. The NSScrollView is actually a collection of other more basic views. On Apr 9, 2008, at 1:42 PM, Lorenzo wrote: I have subsclassed a NSScrollView and overrided the mouseDown: method. Then I create the MYScrollView programmatically and add it to the window's contentView. I can quite see it but when I click on it, the method mouseDown: gets never invoked. What do I miss? ___ 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 [EMAIL PROTECTED]
Re: mouseDown on NSScrollView
Forgot to mention you could use some of the notifications of the clipview to detect scrolling if that's what you're looking for. On Apr 9, 2008, at 1:42 PM, Lorenzo wrote: have subsclassed a NSScrollView and overrided the mouseDown: method. Then I create the MYScrollView programmatically and add it to the window's contentView. I can quite see it but when I click on it, the method mouseDown: gets never invoked. What do I miss? ___ 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 [EMAIL PROTECTED]
Re: what is the proper place to store application settings
On Wed, Apr 9, 2008 at 3:44 PM, Jeff LaMarche [EMAIL PROTECTED] wrote: Actually, I agree... if this is a configuration parameter that he wants the user to be able to set. Since he was talking about using preprocessor directives, I made the assumption that this was not supposed to be user-configurable for some reason. In hindsight, that was probably a stupid assumption. I don't think it's a stupid assumption on your part at all. Quite a reasonable one, actually. I *do* think it's a design flaw, however, to make this thing that could easily change thereby breaking the application dependent on a software update when it can *very easily* be made a user-configurable item. You could even hide the UI if you wanted to, or have a canned support response containing the command line defaults write ... 'fix' if the URL changes. That way, the users can fix for themselves while you compile and distribute (and notify of) the update. -- I.S. ___ 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 [EMAIL PROTECTED]
Re: Tips to deploy applications to multiple Mac OS X versions
- Does the Objective-C 2.0 fast enumeration make sense to be used? I mean, if I don't use it, will my application perform worse on Leopard? Unless you are doing a huge number of enumerations, the difference is speed will not be worth the extra coding hassle. Better check the difference using the performance tools, to make sure you are not making your code much more complex for a few microseconds of speed gain. Cheers, Patrick ___ 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 [EMAIL PROTECTED]
Re: what is the proper place to store application settings
On Wed, Apr 9, 2008 at 2:57 PM, I. Savant [EMAIL PROTECTED] wrote: On Wed, Apr 9, 2008 at 3:44 PM, Jeff LaMarche [EMAIL PROTECTED] wrote: Actually, I agree... if this is a configuration parameter that he wants the user to be able to set. Since he was talking about using preprocessor directives, I made the assumption that this was not supposed to be user-configurable for some reason. In hindsight, that was probably a stupid assumption. I don't think it's a stupid assumption on your part at all. Quite a reasonable one, actually. No, not a bad assumption at all. I was pretty much thinking the same thing, I did not want it to be user configurable. But in my case there is really no good reason to make it that way as I.S. pointed out already. ___ 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 [EMAIL PROTECTED]
Re: More NSUndoManager woes
On 9 Apr 2008, at 14:24, Graham Cox wrote: I'm not sure I fully understand it either - undo issues often make my head spin... Yeah, undo, while NSUndoManager and Objective-C theoretically make it easy, is still tricky to get right sometimes. However you might be right about the ref counting bug, so I'll try and re-examine it from that angle. It might be worth trying to come up with a small test program that can reproduce the issue. Kind regards, Alastair. -- http://alastairs-place.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 [EMAIL PROTECTED]
Re: [OFF] unicode characters
On Apr 9, 2008, at 1:25 PM, Douglas Davidson wrote: On Apr 9, 2008, at 11:14 AM, Alexander Cohen wrote: Sorry for the off-topic post but this is the best place to get info ( lots of smart people ). I have a string that is composed unicode characters. I want to be able to transform that string into all ascii characters by transforming all non-ascii characters into their ascii equivalent. ex: ü = u é = e Anyone know of a way to do that or do i need a lookup table with all characters and their equivalents? Take a look at CFStringTransform(). The details will depend on exactly what you want to do. And of course, this process will only work on a subset of all the Latin-based languages. Are you using this to build sort keys? If so, you should probably just use the various compare APIs available. Those would also ensure that the rules honor what the user has set up in their International prefs. ___ Ricky A. Sharp mailto:[EMAIL PROTECTED] Instant Interactive(tm) http://www.instantinteractive.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 [EMAIL PROTECTED]
CGImage
Hi, I am trying to edit image metadata, and am getting link errors for the MakerCanon and DNG properties, such as, _kCGImagePropertyMakerCanonFirmware, referenced from: _kCGImagePropertyMakerCanonFirmware$non_lazy_ptr in myfile.o The other properties are not causing any issues, so I imagine I am linking the correct files (this is my first cocoa project!). Anyone able to suggest a fix? Regards, Hugo __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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 [EMAIL PROTECTED]
mouseDown on NSScrollView
I have subsclassed a NSScrollView and overrided the mouseDown: method. Then I create the MYScrollView programmatically and add it to the window's contentView. I can quite see it but when I click on it, the method mouseDown: gets never invoked. What do I miss? Best Regards -- Lorenzo email: [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
64-bit apps [was Re: NSUInteger question]
At Wed, 09 Apr 2008 10:43:34 -0700, Corbin Dunn [EMAIL PROTECTED]: The question was what advantage is there for using NSInteger/ NSUInteger. The answer is 64-bit transition of your Cocoa apps. -corbin this raises a question i've been meaning to ask for a while: can anyone speculate as to whether or not the (near) future world is 64 bit apps only (ie, 32 bit apps will no longer work -- similar to the way classic apps no longer work.)? currently, i believe there are small performance penalties for 64-bit apps as we still are in a primarily 32 bit world. i imagine this will shift over the next few years, but will 32 bit apps no longer work? thanx for any thoughts/guidance (as to whether or not it is worth the effort to become a 64 bit app), ken ___ 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 [EMAIL PROTECTED]
Re: NSUInteger question
On Apr 9, 2008, at 9:30 AM, Corbin Dunn wrote: On Apr 8, 2008, at 5:30 PM, Timothy Reaves wrote: What advantage does NSUinteger have over uint32? I realize that on a 64 bit machine, it would be a uint64. I think everyone is missing the point. The advantage is not None. I didn't mean to say that NS[U]Integer has no point, but rather that it doesn't make sense to say that it has an advantage (or not) over uint32_t, because they mean different things. If what you want is a machine-sized integer, then NSInteger has some very clear advantages over the alternative (lots of ifdefs). However, if what you want is specifically a 32-bit integer, then NSInteger would just be wrong. I'd venture that most uses are in the former camp, not the latter, but it deserves at least a little thought. As for the question of NSInteger versus long, I've had to work on enough different architectures that I consider there to be an implicit advantage in a typedef (NSInteger) over a bare long, but that's me. --Chris Nebel ___ 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 [EMAIL PROTECTED]
Hide application from dock
I know I can hide my app from dock simply changing the value NSUIElement in the Info.plist But I want to do it from inside the application. Is there an easy way to modify this file? -- http://zon7blog.wordpress.com/ And again we fall. ___ 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 [EMAIL PROTECTED]
Re: 64-bit apps [was Re: NSUInteger question]
On Apr 9, 2008, at 2:51 PM, Ken Victor wrote: can anyone speculate as to whether or not the (near) future world is 64 bit apps only (ie, 32 bit apps will no longer work -- similar to the way classic apps no longer work.)? It'll be a while. Right now it's a bad idea, since a lot of people are still using Power Mac G4s and 2006-era Intel Macs. Also, there are applications that benefit from 64-bit addressing, but they're kind of rare right now. Heck, on that other operating system, many people are still using Win16 apps... currently, i believe there are small performance penalties for 64- bit apps as we still are in a primarily 32 bit world. i imagine this will shift over the next few years, but will 32 bit apps no longer work? The performance penalties are on PPC64 only. X86-64 doesn't have performance penalties, in fact, X86-64 apps will run faster because function arguments no longer have to be 4-byte aligned on the stack. They aren't even stored on the stack anymore, unless they're very large data structures. thanx for any thoughts/guidance (as to whether or not it is worth the effort to become a 64 bit app), As I see it, you probably should build for 64-bit if you can, since 64- bit apps are faster (on Intel Macs only) and are far more scalable. The only drawbacks are: 1. Because some of the types are twice as twice as large on 64-bit, such as long, size_t, NSInteger, CGFloat, all pointers, etc., all 64- bit apps will use somewhat more RAM than 32-bit apps. 2. Since there aren't a whole lot of 64-bit apps out there, when some users see them using more memory, they tend to think something's wrong with the app. This is especially true if GC is also turned on, as it is in 64-bit Xcode, and the VM requirement swells to 30+ GB. I don't remember why turning GC on does this. 3. The 32-bit frameworks are more than a decade old, and although they have some bugs, they are very stable from all the years of development. The same cannot be said of the 64-bit environment, which are still new have had some interesting bugs. Most of them have been fixed in point releases. 4. Although a lot of legacy stuff got taken out of the frameworks, some older things that are still useful, such as the QuickTime Sequence Grabber, are either not available on 64-bit, or their replacements are not as good. If you'd like, you can build for 64-bit now but by default make the app run as 32-bit. This is done with the LSArchitecturePriority key in Info.plist files. 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 [EMAIL PROTECTED]
RE: Hide application from dock
You cannot tell your app to hide from the dock once it has shown. However, you can start hidden and become visible via the (IIRC) TransformProcessType API. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jere Gmail Sent: Wednesday, April 09, 2008 2:11 PM To: Cocoa Dev Subject: Hide application from dock I know I can hide my app from dock simply changing the value NSUIElement in the Info.plist But I want to do it from inside the application. Is there an easy way to modify this file? -- http://zon7blog.wordpress.com/ And again we fall. ___ 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/jstiles%40blizzard.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: 64-bit apps [was Re: NSUInteger question]
On Apr 9, 2008, at 2:17 PM, Nick Zitzmann wrote: 2. Since there aren't a whole lot of 64-bit apps out there, when some users see them using more memory, they tend to think something's wrong with the app. This is especially true if GC is also turned on, as it is in 64-bit Xcode, and the VM requirement swells to 30+ GB. I don't remember why turning GC on does this. The collector reserves a 32GB zone of addresses to serve up scanned allocations (the autozone). It is only allocating addresses and not actually touching all of that memory. Thus, it bumps the address space by 32GB, but does not actually use 32 GB of memory or VM. b.bum ___ 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 [EMAIL PROTECTED]
Re: 64-bit apps [was Re: NSUInteger question]
On Apr 9, 2008, at 3:23 PM, Bill Bumgarner wrote: The collector reserves a 32GB zone of addresses to serve up scanned allocations (the autozone). It is only allocating addresses and not actually touching all of that memory. Thus, it bumps the address space by 32GB, but does not actually use 32 GB of memory or VM. Thanks. I wish this was documented somewhere, preferably in Activity Monitor's online help, because some people do notice the huge allocation and freak out... I should file a bug on that. 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 [EMAIL PROTECTED]
Re: Hide application from dock
I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. btw, I know I have to restart the application in order to apply the changes :P On Wed, Apr 9, 2008 at 11:25 PM, Randall Meadows [EMAIL PROTECTED] wrote: On Apr 9, 2008, at 3:10 PM, Jere Gmail wrote: I know I can hide my app from dock simply changing the value NSUIElement in the Info.plist But I want to do it from inside the application. Is there an easy way to modify this file? NSBundle -pathForResource... will get you the path to the file, which you can then open and modify. You'll have to restart the app in order for that change to be seen by the system. -- http://zon7blog.wordpress.com/ And again we fall. ___ 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 [EMAIL PROTECTED]
Re: Hide application from dock
[resending with my subscribed address--grrr] On Apr 9, 2008, at 3:34 PM, Jere Gmail wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. NSMutableDictionary Read it into a dictionary, change the appropriate key-value pair, write it back out. ___ 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 [EMAIL PROTECTED]
Re: 64-bit apps [was Re: NSUInteger question]
currently, i believe there are small performance penalties for 64- bit apps 'small' could be a bit of an understatement, when loading a 64 bit application into memory the OS has to load all the 64 bit libraries too. This propagates down the entire framework stack, if I recall correctly it goes something like Cocoa-ApplicationServices- CoreServices-libSystem. If your app is the only 64 bit one running then these frameworks aren't going to be shared in memory causing a much greater memory demand on the system, i.e. having both 32 bit and 64 bit versions loaded. Are the 64 bit versions unloaded when the last 64 bit app terminates? That said I think it's still worth compiling as 64 bit, but making sure that you take the required precautions. These are detailed either in the docs or the WWDC materials. After all, isn't Apple's whole computer lineup fully 64 bit now? Keith ___ 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 [EMAIL PROTECTED]
Re: Hide application from dock
On Wed, Apr 9, 2008 at 10:34 PM, Jere Gmail [EMAIL PROTECTED] wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. See http://www.google.com/search?q=plist+cocoabtnI=I'm%20Feeling%20Lucky Hamish ___ 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 [EMAIL PROTECTED]
Re: CGImage
Scott, On Wed, 09 Apr 2008 Scott Thompson wrote: If this constant follows the behavior of most constants of it's kind, you could work around the problem by adding: const CFStringRef kCGImagePropertyMakerCanonFirmware = CFSTR(kCGImagePropertyMakerCanonFirmware); Thanks for the workaround. Hugo __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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 [EMAIL PROTECTED]
Override AppleScrollBarVariant on NSScroller?
Hi, I'm looking for a way to override the user's AppleScrollBarVariant setting, and force the arrows on my custom NSScroller to be displayed at both ends of the scroller. The documentation has no mentioning of this. Does anyone know if this is possible? Thanks. F. ___ 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 [EMAIL PROTECTED]
Making IB set maximum height but not width?
Is there a way to get Interface Builder to set a maximum height on a window, but not limit the width? I know some work-arounds, such as setting a max on both but making the max width huge, or enforcing it in the code, but is it doable as stated? -==- Jack Repenning [EMAIL PROTECTED] Project Owner SCPlugin http://scplugin.tigris.org Subversion for the rest of OS X ___ 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 [EMAIL PROTECTED]
Re: Making IB set maximum height but not width?
On Wed, Apr 9, 2008 at 11:22 PM, Jack Repenning [EMAIL PROTECTED] wrote: Is there a way to get Interface Builder to set a maximum height on a window, but not limit the width? Just set the max width to 0. Hamish ___ 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 [EMAIL PROTECTED]
Copying a JPEG image with CGImage changes file size
Hi,
I am wanting to edit metadata in a JPEG, and am just testing
code (below) to read and write out an image without modification using CGImage
to make sure I can do so without changing the image. I am unable to obtain an
output file which is identical to the input file. Any suggestions? have tried
setting kCGImageDestinationLossyCompressionQuality to 1.0.
Thanks,
Hugo
// Load the image
NSURL *absURL= [NSURL fileURLWithPath:@testImage.JPG];
CGImageSourceRef source = CGImageSourceCreateWithURL((CFURLRef)absURL,
NULL);
size_t numImages=CGImageSourceGetCount(source);
// Create an image destination writing to `url'
NSURL *absURL2= [NSURL fileURLWithPath:@testImageOutput.JPG];
CGImageDestinationRef dest =
CGImageDestinationCreateWithURL((CFURLRef)absURL2,
(CFStringRef)@public.jpeg, numImages, nil);
size_t i=0;
for (i=0; inumImages; ++i)
{
CFMutableDictionaryRef mMetadata =
(CFMutableDictionaryRef)CGImageSourceCopyPropertiesAtIndex(source, i, nil);
CGImageDestinationAddImageFromSource(dest, source, i, mMetadata);
}
BOOL status = CGImageDestinationFinalize(dest);
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Re: Override AppleScrollBarVariant on NSScroller?
On a similar note, how can I find out what the current AppleScrollBarVariant is? The docs don't cover this either :-/ On Thu, Apr 10, 2008 at 12:12 AM, [EMAIL PROTECTED] wrote: Hi, I'm looking for a way to override the user's AppleScrollBarVariant setting, and force the arrows on my custom NSScroller to be displayed at both ends of the scroller. The documentation has no mentioning of this. Does anyone know if this is possible? Thanks. F. ___ 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 [EMAIL PROTECTED]
Re: How to force NSTableView to stop editing a text cell?
On Apr 9, 2008, at 5:51 AM, Graham Cox wrote: How can I force a text cell in NSTableView to stop editing? On 10.4 I could just tell the view's window to make the entire table the first responder and that did the trick, but on 10.5 this no longer works. I'm trying to do this from within the textDidEndEditing: notification method so that I can suppress the table behaviour that goes to the next row and starts editing there - I just want the text to end editing on typing return and the table view to go back to its previous state - same row selected but no text being edited. What you describe is now the default 10.5 behavior (which the majority of people want). You can do an AppKitVersion check and just call [super textDidEndEditing:] if you are on Leopard. FWIW, -abortEditing basically just makes the window first responder (and does some other minor stuff in tableview). It should still work the same as 10.4. corbin ___ 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 [EMAIL PROTECTED]
Re: Override AppleScrollBarVariant on NSScroller?
I believe one normally does this system-wide via the user defaults. I suspect that setting such a default for your app only may do the trick. Not that I've actually tested it - try it and see! :) On 9 Apr 2008, at 23:12, [EMAIL PROTECTED] wrote: Hi, I'm looking for a way to override the user's AppleScrollBarVariant setting, and force the arrows on my custom NSScroller to be displayed at both ends of the scroller. The documentation has no mentioning of this. Does anyone know if this is possible? Thanks. F. ___ 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 [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: Hide application from dock
On Apr 9, 2008, at 4:41 PM, Randall Meadows wrote: [resending with my subscribed address--grrr] On Apr 9, 2008, at 3:34 PM, Jere Gmail wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. NSMutableDictionary Read it into a dictionary, change the appropriate key-value pair, write it back out. You shouldn't design your application such that it requires being able to modify its own bundle in any way, shape or form. In many cases you won't have write permission on it... Glenn Andreas [EMAIL PROTECTED] http://www.gandreas.com/ wicked fun! quadrium2 | build, mutate, evolve, animate | images, textures, fractals, art ___ 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 [EMAIL PROTECTED]
Re: Hide application from dock
Even if you could change it, once your app is running it, changing the plist won't have any effect until the next time the app is run. So it's probably a moot point. glenn andreas wrote: On Apr 9, 2008, at 4:41 PM, Randall Meadows wrote: [resending with my subscribed address--grrr] On Apr 9, 2008, at 3:34 PM, Jere Gmail wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. NSMutableDictionary Read it into a dictionary, change the appropriate key-value pair, write it back out. You shouldn't design your application such that it requires being able to modify its own bundle in any way, shape or form. In many cases you won't have write permission on it... Glenn Andreas [EMAIL PROTECTED] http://www.gandreas.com/ wicked fun! quadrium2 | build, mutate, evolve, animate | images, textures, fractals, art ___ 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/jstiles%40blizzard.com This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
Re: Hide application from dock
On Apr 9, 2008, at 5:35 PM, John Stiles wrote: Even if you could change it, once your app is running it, changing the plist won't have any effect until the next time the app is run. So it's probably a moot point. Yes, I actually pointed that out in my first reply, which didn't make it to the list because Mail.app won't switch personalities appropriately, so I sent it from an illegal address. Although, Glenn has a good point...code signing will surely break when doing that as well, right? Does that operate on the entire bundle, or just the executable bits? glenn andreas wrote: On Apr 9, 2008, at 4:41 PM, Randall Meadows wrote: [resending with my subscribed address--grrr] On Apr 9, 2008, at 3:34 PM, Jere Gmail wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. NSMutableDictionary Read it into a dictionary, change the appropriate key-value pair, write it back out. You shouldn't design your application such that it requires being able to modify its own bundle in any way, shape or form. In many cases you won't have write permission on 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 [EMAIL PROTECTED]
Re: Hide application from dock
Randall Meadows wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. btw, I know I have to restart the application in order to apply the changes :P Do you also know that assuming you can write to a location referenced relative to the application will lead to frustrated users and support calls you can't actually do anything about? There are a fair number of situations where it simply will not work. ___ 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 [EMAIL PROTECTED]
IKImageView -zoomImageToFit causes flicker
Hi, all. I'm working with ImageKit, and I've bumped into a problem.
(See below for relevant source.) If I select an image that I've
brought in from the filesystem, the -setIKImageViewImage: method
causes a flickr. I have narrowed it down to the -zoomImageToFit: call.
Without it, there is no flicker.
Moreover, if the image I select in the IKImageBrowserView has been
taken with my MacBook's built-in iSight, the zoom does not cause the
flicker.
Can anyone offer any thoughts about what might be causing the issue? I
was thinking it might possibly be a caching issue, but I can't work
out what the difference would be.
Thanks in advance for any help.
Jamie
- (void) imageBrowserSelectionDidChange:(IKImageBrowserView *) aBrowser{
if(selectedIndex == [[aBrowser selectionIndexes] firstIndex]){
NSLog(@First index has not changed);
return;
}
selectedIndex = [[aBrowser selectionIndexes] firstIndex];
if(selectedIndex != NSNotFound){
[self setIKImageViewImage:selectedIndex];
} else {
NSLog(@Selection is empty.);
[mImageView setImageWithURL:nil];
}
}
- (void)setIKImageViewImage:(int)index{
NSImage *mImg;
mImg = [[mImages objectAtIndex:selectedIndex] content];
CGImageSourceRef source;
source = CGImageSourceCreateWithData((CFDataRef)[mImg
TIFFRepresentation], NULL);
CGImageRef newImage = CGImageSourceCreateImageAtIndex(source, 0,
NULL);
[mImageView setImage:newImage imageProperties:nil];
[mImageView zoomImageToFit:nil];
}
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Re: Hide application from dock
On Apr 9, 2008, at 5:52 PM, Gregory Weston wrote: Randall Meadows wrote: I know taht with nsbundle I can obtain the path. But as it is a xml file, I didn't want to mess with it and I was guessing some class could handle it easily. btw, I know I have to restart the application in order to apply the changes :P Do you also know that assuming you can write to a location referenced relative to the application will lead to frustrated users and support calls you can't actually do anything about? There are a fair number of situations where it simply will not work. Just for the record, that attribution is incorrect--I did NOT write that. I am not the one trying to do this, I'm just telling him how he can do what he shouldn't do. :) ___ 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 [EMAIL PROTECTED]
Re: Override AppleScrollBarVariant on NSScroller?
I hope it isn't possible. I don't really want applications actively ignoring my scroll bar setting and enforcing its own. I prefer them at one end, together, at bottom. If suddenly one or two of my apps are different, it's going to drive me batty as I switch around between apps, and those weird apps are gonna take a quick trip to the trash. -- m-s On 09 Apr, 2008, at 18:12, [EMAIL PROTECTED] wrote: Hi, I'm looking for a way to override the user's AppleScrollBarVariant setting, and force the arrows on my custom NSScroller to be displayed at both ends of the scroller. The documentation has no mentioning of this. Does anyone know if this is possible? Thanks. F. ___ 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/mikey-san %40bungie.org This email sent to [EMAIL PROTECTED] ___ 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 [EMAIL PROTECTED]
How to replace image contents?
Hi,
I have a class with image property:
@interface MyClass
{
...
NSImage *image;
}
...
@end
in -(void) init: this image object is set like:
-(void) init
{
...
image = [[NSImage alloc] initWithData: imageData];
...
}
somewhere else in another method image should be replaced with new
data. Easiest way is to release and creation of new NSImage object like:
...
[image release];
image = [[NSImage alloc] initWithData: newImageData];
...
But these lines of code involves freeing memory and allocating new
object although it seems to be faster if data would be replaced
instead of recreating the whole object. Is it possible to do that way:
just to replace image contents with newImageData without reallocating
new object?
Thanks, Samvel.
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Re: How to replace image contents?
On Apr 9, 2008, at 7:43 PM, Samvel wrote: But these lines of code involves freeing memory and allocating new object although it seems to be faster if data would be replaced instead of recreating the whole object. Is it possible to do that way: just to replace image contents with newImageData without reallocating new object? Not via the NSImage API. You could use an NSBitmapImageRep instead. However, have you run Shark or Instruments to determine if this is actually a performance issue? More likely, most of your CPU cycles are being consumed by actually changing out the image data and very few cycles are consumed by the allocation of the wrapper object. Before you bother with NSBitmapImageRep, I would highly recommend using the provided tools to figure out what needs to be optimized first. b.bum BTW: NSBitmapImageRep has the honor of having the single longest method declaration of any class in Mac OS X. Or, at least, I think it does. - (id)initWithBitmapDataPlanes:(unsigned char **)planes pixelsWide: (int)width pixelsHigh:(int)height bitsPerSample:(int)bps samplesPerPixel:(int)spp hasAlpha:(BOOL)alpha isPlanar:(BOOL)isPlanar colorSpaceName:(NSString *)colorSpaceName bitmapFormat: (NSBitmapFormat)bitmapFormat bytesPerRow:(int)rBytes bitsPerPixel: (int)pBits; (There might have been a method in EOF that was actually longer) ___ 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 [EMAIL PROTECTED]
Re: How to replace image contents?
It was a general thought. I am programming in Objective-C only for about month and was wondering if there is any faster way to replace image/string/etc. contents instead of reallocating object itself. Samvel. On Apr 9, 2008, at 9:58 PM, Bill Bumgarner wrote: On Apr 9, 2008, at 7:43 PM, Samvel wrote: But these lines of code involves freeing memory and allocating new object although it seems to be faster if data would be replaced instead of recreating the whole object. Is it possible to do that way: just to replace image contents with newImageData without reallocating new object? Not via the NSImage API. You could use an NSBitmapImageRep instead. However, have you run Shark or Instruments to determine if this is actually a performance issue? More likely, most of your CPU cycles are being consumed by actually changing out the image data and very few cycles are consumed by the allocation of the wrapper object. Before you bother with NSBitmapImageRep, I would highly recommend using the provided tools to figure out what needs to be optimized first. b.bum BTW: NSBitmapImageRep has the honor of having the single longest method declaration of any class in Mac OS X. Or, at least, I think it does. - (id)initWithBitmapDataPlanes:(unsigned char **)planes pixelsWide: (int)width pixelsHigh:(int)height bitsPerSample:(int)bps samplesPerPixel:(int)spp hasAlpha:(BOOL)alpha isPlanar: (BOOL)isPlanar colorSpaceName:(NSString *)colorSpaceName bitmapFormat:(NSBitmapFormat)bitmapFormat bytesPerRow:(int)rBytes bitsPerPixel:(int)pBits; (There might have been a method in EOF that was actually longer) ___ 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 [EMAIL PROTECTED]
