Re: NSToolbar in Catalina

2020-03-23 Thread Tom Doan via Cocoa-dev
On looking at the particulars of the icons that are working and those 
that are not, it looks like anything that has a high resolution (128 x 
128) is displaying wrong, while the ones that I never updated from 
48 x 48 work correctly.

> I had a similar problem with .icns files showing weird graphics but on
> Mojave and earlier they were fine.  I resolved the issue by using Icon
> Composer (on macOS 10.10) to extract the '.icns' file(s) to iconsets
> and then importing them into an Asset Library.
> 
> The NSImage creation changed to use imageForResource
> 
> image = [NSBundle imageForResource:imgName];
> 
> -Dave
> 
> On 3/23/20, 1:10 PM, "Cocoa-dev on behalf of Tom Doan via
> Cocoa-dev"  on behalf of Cocoa-dev@lists.apple.com> wrote:
> 
> To provide a bit of additional information, the toolbar icons are
> fetched with
> 
> image  = [[NSImage alloc] 
> initByReferencingFile:[mainBundle 
> pathForResource:identifier ofType:@"icns"]];
> 
> 
> > I'm having a very odd problem. I use NSToolbar/NSToolbarItem to
> > manage toolbars in my application. Under Catalina (and
> apparently only > under Catalina), some of our users (only a few,
> and not me on my > development machines) end up with toolbar items
> that have a very odd > appearance---some are fine, some are
> completely whited out, some are > almost completely whited out
> with some odd colors added, usually pale > pink in an area which
> has nothing to do with the original icon > appearance. The washed
> out icons have nothing to do with them being > tagged
> inactive---on my machine, inactive icons look correctly dimmed >
> and the washed out ones are supposed to be active anyway. Does
> anyone > have an idea what the problem might be? > > Best regards,
> > > Tom Doan > Estima > --- > 2717 Harrison St > Evanston, IL
> 60201 > USA > > > ___
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> 
> ---
> 2717 Harrison St
> Evanston, IL 60201
> USA
> 
> 
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> 


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Re: NSToolbar in Catalina

2020-03-23 Thread St John, David R via Cocoa-dev
I had a similar problem with .icns files showing weird graphics but on Mojave 
and earlier they were fine.  I resolved the issue by using Icon Composer (on 
macOS 10.10) to extract the '.icns' file(s) to iconsets and then importing them 
into an Asset Library.

The NSImage creation changed to use imageForResource

image = [NSBundle imageForResource:imgName];

-Dave

On 3/23/20, 1:10 PM, "Cocoa-dev on behalf of Tom Doan via Cocoa-dev" 
 wrote:

To provide a bit of additional information, the toolbar icons are 
fetched with

image  = [[NSImage alloc] 
initByReferencingFile:[mainBundle 
pathForResource:identifier ofType:@"icns"]];


> I'm having a very odd problem. I use NSToolbar/NSToolbarItem to 
> manage toolbars in my application. Under Catalina (and apparently only
> under Catalina), some of our users (only a few, and not me on my
> development machines) end up with toolbar items that have a very odd
> appearance---some are fine, some are completely whited out, some are
> almost completely whited out with some odd colors added, usually pale
> pink in an area which has nothing to do with the original icon
> appearance. The washed out icons have nothing to do with them being
> tagged inactive---on my machine, inactive icons look correctly dimmed
> and the washed out ones are supposed to be active anyway. Does anyone
> have an idea what the problem might be?
> 
> Best regards,
> 
> Tom Doan
> Estima
> ---
> 2717 Harrison St
> Evanston, IL 60201
> USA
> 
> 
> ___
> 
> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
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> Please do not post admin requests or moderator comments to the list.
> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
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> This email sent to t...@estima.com


---
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Evanston, IL 60201
USA


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Re: NSToolbar in Catalina

2020-03-23 Thread Tom Doan via Cocoa-dev
To provide a bit of additional information, the toolbar icons are 
fetched with

image  = [[NSImage alloc] 
initByReferencingFile:[mainBundle 
pathForResource:identifier ofType:@"icns"]];


> I'm having a very odd problem. I use NSToolbar/NSToolbarItem to 
> manage toolbars in my application. Under Catalina (and apparently only
> under Catalina), some of our users (only a few, and not me on my
> development machines) end up with toolbar items that have a very odd
> appearance---some are fine, some are completely whited out, some are
> almost completely whited out with some odd colors added, usually pale
> pink in an area which has nothing to do with the original icon
> appearance. The washed out icons have nothing to do with them being
> tagged inactive---on my machine, inactive icons look correctly dimmed
> and the washed out ones are supposed to be active anyway. Does anyone
> have an idea what the problem might be?
> 
> Best regards,
> 
> Tom Doan
> Estima
> ---
> 2717 Harrison St
> Evanston, IL 60201
> USA
> 
> 
> ___
> 
> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
> 
> Please do not post admin requests or moderator comments to the list.
> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
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> This email sent to t...@estima.com


---
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Evanston, IL 60201
USA


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Re: Open a panel in secondary thread?

2020-03-23 Thread Glenn L. Austin via Cocoa-dev
Correct.

main_queue will *always* be on the main thread, but the main thread may be 
running a different queue at any specific point in time.

So, if you're *not* on the main thread, throwing code over to the main queue to 
execute will guarantee that it's on the main thread - but not vice-versa.

> On Mar 23, 2020, at 8:25 AM, Alex Zavatone via Cocoa-dev 
>  wrote:
> 
> Main queue is analogous to the main thread, but not exactly the same - 
> according to Apple’s docs.
> 
> Sent from my iPhone
> 
>> On Mar 23, 2020, at 12:53 PM, Gabriel Zachmann via Cocoa-dev 
>>  wrote:
>> 
>> Thanks a lot for your response.
>> 
>>> I would not do this.  It is widely documented that AppKit API that produce 
>>> UI elements, like NSOpenPanel, are _not_ thread safe.  
>> 
>> Right, and that is why I have to execute any UI code in the main thread,
>> or so I thought.
>> As far as I understand, the dispatch_get_main_queue is executed by the main 
>> thread, isn't it?
>> 
>> 
>>> So you may find your app hitting some memory stomping issues or strange 
>>> crashes/exceptions due to this.  Specifically what problems you will hit 
>>> are anyones guess, but its just a matter of time.  There is a reason Xcode 
>>> has the Main Thread Checker to catch UI elements being used on secondary 
>>> threads.
>>> 
>>> Lets come at  this from a different direction: What are you trying to do? 
>>> Why do you think you need to use the open panel on a secondary thread?
>> 
>> When the user selects a directory, I collect all files in that sub-tree (aka 
>> "scan").
>> That might involve aliases. which means I need to ask the user to open the 
>> directory that alias points to.
>> Because that scan can take several seconds (10-20),
>> I wanted to do that scan in a secondary thread so that it can update 
>> progress info in the UI.
>> 
>> Best regards, Gabriel
>> 
>> ___
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Re: Open a panel in secondary thread?

2020-03-23 Thread Alex Zavatone via Cocoa-dev
Main queue is analogous to the main thread, but not exactly the same - 
according to Apple’s docs.

Sent from my iPhone

> On Mar 23, 2020, at 12:53 PM, Gabriel Zachmann via Cocoa-dev 
>  wrote:
> 
> Thanks a lot for your response.
> 
>> I would not do this.  It is widely documented that AppKit API that produce 
>> UI elements, like NSOpenPanel, are _not_ thread safe.  
> 
> Right, and that is why I have to execute any UI code in the main thread,
> or so I thought.
> As far as I understand, the dispatch_get_main_queue is executed by the main 
> thread, isn't it?
> 
> 
>> So you may find your app hitting some memory stomping issues or strange 
>> crashes/exceptions due to this.  Specifically what problems you will hit are 
>> anyones guess, but its just a matter of time.  There is a reason Xcode has 
>> the Main Thread Checker to catch UI elements being used on secondary threads.
>> 
>> Lets come at  this from a different direction: What are you trying to do? 
>> Why do you think you need to use the open panel on a secondary thread?
> 
> When the user selects a directory, I collect all files in that sub-tree (aka 
> "scan").
> That might involve aliases. which means I need to ask the user to open the 
> directory that alias points to.
> Because that scan can take several seconds (10-20),
> I wanted to do that scan in a secondary thread so that it can update progress 
> info in the UI.
> 
> Best regards, Gabriel
> 
> ___
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Re: Open a panel in secondary thread?

2020-03-23 Thread Gabriel Zachmann via Cocoa-dev
> 
> Yes, understood.  Does the user have to ask for this process to begin, or 
> does it start automatically?

The user starts the process by opening a directory.
Then, when the process hits an alias pointing to some other directory, the 
process will ask the user again to open that directory.
So, it is fine if the process stops while asking.

> Is the user allowed to interact with the app while this is going on,

No.



Best regards, Gabriel


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Re: Open a panel in secondary thread?

2020-03-23 Thread Sandor Szatmari via Cocoa-dev

> On Mar 23, 2020, at 10:01 AM, Gabriel Zachmann  wrote:
> 
> 
 I would not do this.  It is widely documented that AppKit API that produce 
 UI elements, like NSOpenPanel, are _not_ thread safe.  
>>> 
>>> Right, and that is why I have to execute any UI code in the main thread,
>>> or so I thought.
>>> As far as I understand, the dispatch_get_main_queue is executed by the main 
>>> thread, isn't it?
>> Yes
> 
> So, why is 
>dispatch_sync( dispatch_get_main_queue(),  block opening a NSOpenPanel )
> a bad idea?
I think it’s fine if the following is true… you are ok with blocking your 
secondary thread while the user interacts with the panel.
> 
>>> 
>>> When the user selects a directory, I collect all files in that sub-tree 
>>> (aka "scan").
>>> That might involve aliases. which means I need to ask the user to open the 
>>> directory that alias points to.
>>> Because that scan can take several seconds (10-20),
>>> I wanted to do that scan in a secondary thread so that it can update 
>>> progress info in the UI.
>> 
>> This is all reasonable…  I guess there may be two options, ask the user on 
>> the main thread, before you are on your background thread,
> 
> Would be doable, but would complicate the code, because
>  
> I would first need to scan the whole directory tree for aliases,
I haven’t had much experience with needing to request permission to access 
files, but I thought you’d have to ask permission before scanning.  Are you 
allowed to scan before you ask for permission?

> get user permission ,
> then pass the array of directories to a secondary thread.
> 
> Also, I would like to give the user progress info while the secondary thread 
> is collecting.
Yes, understood.  Does the user have to ask for this process to begin, or does 
it start automatically?  Is the user allowed to interact with the app while 
this is going on, or does the UI just update with progress?

Sandor
> 
>> and only start the background thread after the user answers, or dispatch the 
>> UI work to the main thread from your background thread as your code sample 
>> showed.
> 
> So my solution is viable ?
> 
> 
> Best regards, Gabriel
> 
> 
> 
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Re: Open a panel in secondary thread?

2020-03-23 Thread Rob Petrovec via Cocoa-dev


> On Mar 23, 2020, at 8:01 AM, Gabriel Zachmann via Cocoa-dev 
>  wrote:
> 
 I would not do this.  It is widely documented that AppKit API that produce 
 UI elements, like NSOpenPanel, are _not_ thread safe.  
>>> 
>>> Right, and that is why I have to execute any UI code in the main thread,
>>> or so I thought.
>>> As far as I understand, the dispatch_get_main_queue is executed by the main 
>>> thread, isn't it?
>> Yes
> 
> So, why is 
>   dispatch_sync( dispatch_get_main_queue(),  block opening a NSOpenPanel )
> a bad idea?
It’s not a bad idea.  I misread the code.   I didn’t see 
dispatch_get_main_queue.  Sorry about that.  This will invoke the open panel on 
the main thread and not return until the panel is dismissed.


>>> When the user selects a directory, I collect all files in that sub-tree 
>>> (aka "scan").
>>> That might involve aliases. which means I need to ask the user to open the 
>>> directory that alias points to.
>>> Because that scan can take several seconds (10-20),
>>> I wanted to do that scan in a secondary thread so that it can update 
>>> progress info in the UI.
>> 
>> This is all reasonable…  I guess there may be two options, ask the user on 
>> the main thread, before you are on your background thread,
> 
> Would be doable, but would complicate the code, because I would first need to 
> scan
> the whole directory tree for aliases, get user permission , then pass the 
> array of directories to a secondary thread.
> 
> Also, I would like to give the user progress info while the secondary thread 
> is collecting.
> 
>> and only start the background thread after the user answers, or dispatch the 
>> UI work to the main thread from your background thread as your code sample 
>> showed.
> 
> So my solution is viable ?
Yes.

—Rob


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NSToolbar in Catalina

2020-03-23 Thread Tom Doan via Cocoa-dev
I'm having a very odd problem. I use NSToolbar/NSToolbarItem to 
manage toolbars in my application. Under Catalina (and apparently 
only under Catalina), some of our users (only a few, and not me on 
my development machines) end up with toolbar items that have a 
very odd appearance---some are fine, some are completely whited 
out, some are almost completely whited out with some odd colors 
added, usually pale pink in an area which has nothing to do with the 
original icon appearance. The washed out icons have nothing to do 
with them being tagged inactive---on my machine, inactive icons 
look correctly dimmed and the washed out ones are supposed to be 
active anyway. Does anyone have an idea what the problem might 
be?

Best regards,

Tom Doan
Estima
---
2717 Harrison St
Evanston, IL 60201
USA


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Re: Open a panel in secondary thread?

2020-03-23 Thread Gabriel Zachmann via Cocoa-dev
>>> I would not do this.  It is widely documented that AppKit API that produce 
>>> UI elements, like NSOpenPanel, are _not_ thread safe.  
>> 
>> Right, and that is why I have to execute any UI code in the main thread,
>> or so I thought.
>> As far as I understand, the dispatch_get_main_queue is executed by the main 
>> thread, isn't it?
> Yes

So, why is 
   dispatch_sync( dispatch_get_main_queue(),  block opening a NSOpenPanel )
a bad idea?

>> 
>> When the user selects a directory, I collect all files in that sub-tree (aka 
>> "scan").
>> That might involve aliases. which means I need to ask the user to open the 
>> directory that alias points to.
>> Because that scan can take several seconds (10-20),
>> I wanted to do that scan in a secondary thread so that it can update 
>> progress info in the UI.
> 
> This is all reasonable…  I guess there may be two options, ask the user on 
> the main thread, before you are on your background thread,

Would be doable, but would complicate the code, because I would first need to 
scan
the whole directory tree for aliases, get user permission , then pass the array 
of directories to a secondary thread.

Also, I would like to give the user progress info while the secondary thread is 
collecting.

> and only start the background thread after the user answers, or dispatch the 
> UI work to the main thread from your background thread as your code sample 
> showed.

So my solution is viable ?


Best regards, Gabriel



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Re: Open a panel in secondary thread?

2020-03-23 Thread Sandor Szatmari via Cocoa-dev
Gabriel,

> On Mar 23, 2020, at 8:54 AM, Gabriel Zachmann via Cocoa-dev 
>  wrote:
> 
> Thanks a lot for your response.
> 
>> I would not do this.  It is widely documented that AppKit API that produce 
>> UI elements, like NSOpenPanel, are _not_ thread safe.  
> 
> Right, and that is why I have to execute any UI code in the main thread,
> or so I thought.
> As far as I understand, the dispatch_get_main_queue is executed by the main 
> thread, isn't it?
Yes
> 
> 
>> So you may find your app hitting some memory stomping issues or strange 
>> crashes/exceptions due to this.  Specifically what problems you will hit are 
>> anyones guess, but its just a matter of time.  There is a reason Xcode has 
>> the Main Thread Checker to catch UI elements being used on secondary threads.
>> 
>> Lets come at  this from a different direction: What are you trying to do? 
>> Why do you think you need to use the open panel on a secondary thread?
> 
> When the user selects a directory, I collect all files in that sub-tree (aka 
> "scan").
> That might involve aliases. which means I need to ask the user to open the 
> directory that alias points to.
> Because that scan can take several seconds (10-20),
> I wanted to do that scan in a secondary thread so that it can update progress 
> info in the UI.

This is all reasonable…  I guess there may be two options, ask the user on the 
main thread, before you are on your background thread, and only start the 
background thread after the user answers, or dispatch the UI work to the main 
thread from your background thread as your code sample showed.

The fact you have to block (dispatch_sync) your background thread sort of leads 
me to think you could be avoiding the extra care needed to run things on the 
main thread by calling in before you start your background thread.

Sandor

> 
> Best regards, Gabriel
> 
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Re: Open a panel in secondary thread?

2020-03-23 Thread Gabriel Zachmann via Cocoa-dev
Thanks a lot for your response.

> I would not do this.  It is widely documented that AppKit API that produce UI 
> elements, like NSOpenPanel, are _not_ thread safe.  

Right, and that is why I have to execute any UI code in the main thread,
or so I thought.
As far as I understand, the dispatch_get_main_queue is executed by the main 
thread, isn't it?


> So you may find your app hitting some memory stomping issues or strange 
> crashes/exceptions due to this.  Specifically what problems you will hit are 
> anyones guess, but its just a matter of time.  There is a reason Xcode has 
> the Main Thread Checker to catch UI elements being used on secondary threads.
> 
> Lets come at  this from a different direction: What are you trying to do? Why 
> do you think you need to use the open panel on a secondary thread?

When the user selects a directory, I collect all files in that sub-tree (aka 
"scan").
That might involve aliases. which means I need to ask the user to open the 
directory that alias points to.
Because that scan can take several seconds (10-20),
I wanted to do that scan in a secondary thread so that it can update progress 
info in the UI.

Best regards, Gabriel

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