Re: tiffs on pasteboard
Am 20.11.2009 um 03:04 schrieb Chris Idou: But what are the rules and conventions? Why would Finder put the icon in the pasteboard on the assumption that is what the user wants, but TextEdit would paste in the actual file on the assumption that is what the user wants? It seems schizophrenic. Yeah. Copying a 20MB image to the pasteboard would be what the user wants. Or better one Gig of video. I think not. You think like a user (who would assume that the file is really on the pasteboard) and not like a developer (who should know that the pasteboard content has to be lightweight). I just want a list of rules of how to use the Pasteboard in a way that conforms to what users expect. If I start ignoring the TIFF part of the pasteboard in favor of the URL on the assumption that is what the user wants, why is the tiff there anyway? The TIFF is a preview. The URL is the meat. And will that get me into trouble in other cases? That depends only on the pasteboard provider. There is no strict rule. The provider does not know the recipient and therefore puts everything on the pasteboard that will satisfy the task the provider offers. atze ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
I thought the solution to big files was to use pasteboard promises... not to setup a pasteboard which is conflicted about what item it is trying to store. At least that's what I find documented by Apple. From: Alexander Spohr a...@freeport.de To: Chris Idou idou...@yahoo.com Cc: Jens Alfke j...@mooseyard.com; cocoa-dev@lists.apple.com Sent: Fri, 20 November, 2009 7:00:18 PM Subject: Re: tiffs on pasteboard Am 20.11.2009 um 03:04 schrieb Chris Idou: But what are the rules and conventions? Why would Finder put the icon in the pasteboard on the assumption that is what the user wants, but TextEdit would paste in the actual file on the assumption that is what the user wants? It seems schizophrenic. Yeah. Copying a 20MB image to the pasteboard would be what the user wants. Or better one Gig of video. I think not. You think like a user (who would assume that the file is really on the pasteboard) and not like a developer (who should know that the pasteboard content has to be lightweight). I just want a list of rules of how to use the Pasteboard in a way that conforms to what users expect. If I start ignoring the TIFF part of the pasteboard in favor of the URL on the assumption that is what the user wants, why is the tiff there anyway? The TIFF is a preview. The URL is the meat. And will that get me into trouble in other cases? That depends only on the pasteboard provider. There is no strict rule. The provider does not know the recipient and therefore puts everything on the pasteboard that will satisfy the task the provider offers. atze __ Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7. Enter now: http://au.docs.yahoo.com/homepageset/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
On Nov 20, 2009, at 1:35 AM, Chris Idou wrote: I thought the solution to big files was to use pasteboard promises... not to setup a pasteboard which is conflicted about what item it is trying to store. At least that's what I find documented by Apple. You're correct that promises would overcome some of the inefficiencies (although I can envision other situations where the size would be a problem.) I suspect the real reason is that there isn't a straightforward mapping between file types and pasteboard types. There is not in general any table that says a file with extension .foo contains data that can be stored in a pasteboard using type 'FooPasteboardType'; so the Finder would not be able to decide in all cases what pasteboard type to use for the contents of the dragged/copied file.* You could argue that images are a useful special case; but I suspect that the engineers responsible decided that it was better to remain consistent. (And actually, it doesn't even work for all image types. The old Mac 'PICT' format is infamous for having a slightly different representation in memory than in a file, so you can't just slurp a PICT file into the pasteboard and have it be useable.) —Jens * Especially for package file types that are actually directories; would the rule be to create a Zip archive? :-P___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
Well... now that in 10.6 the pasteboard types are UTI types, I'm not sure that one can say anymore that there is no mapping from files to pasteboard types. And 10.6 Finder puts a public.tiff into the pasteboard in this case, but I would argue it is the wrong tiff. On Nov 20, 2009, at 1:35 AM, Chris Idou wrote: I thought the solution to big files was to use pasteboard promises... not to setup a pasteboard which is conflicted about what item it is trying to store. At least that's what I find documented by Apple. You're correct that promises would overcome some of the inefficiencies (although I can envision other situations where the size would be a problem.) I suspect the real reason is that there isn't a straightforward mapping between file types and pasteboard types. There is not in general any table that says a file with extension .foo contains data that can be stored in a pasteboard using type 'FooPasteboardType'; so the Finder would not be able to decide in all cases what pasteboard type to use for the contents of the dragged/copied file.* You could argue that images are a useful special case; but I suspect that the engineers responsible decided that it was better to remain consistent.. (And actually, it doesn't even work for all image types. The old Mac 'PICT' format is infamous for having a slightly different representation in memory than in a file, so you can't just slurp a PICT file into the pasteboard and have it be useable.) —Jens * Especially for package file types that are actually directories; would the rule be to create a Zip archive? :-P __ Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7. Enter now: http://au.docs.yahoo.com/homepageset/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
On Nov 20, 2009, at 3:59 PM, Chris Idou idou...@yahoo.com wrote: Well... now that in 10.6 the pasteboard types are UTI types, I'm not sure that one can say anymore that there is no mapping from files to pasteboard types. And 10.6 Finder puts a public.tiff into the pasteboard in this case, but I would argue it is the wrong tiff. Icons in the Finder are just that: icons. It is not the Finder's job to do the open-the-file work of the drop target. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
tiffs on pasteboard
I'm trying to read a TIFF off the pasteboard, but it doesn't seem to work for me. What I'm doing is going into Finder, finding a TIFF file and Command-C it. Among other types I then find on the pasteboard are: NeXT TIFF v4.0 pasteboard type and public.tiff If I take either of those from the pasteboard and write the NSData object to a file: [content writeToFile:@/tmp/foo.tiffatomically:YES]; or else if I make an NSImage from the data: [[NSImagealloc] initWithData:content] and display it in an NSImageView then I always see the generic TIFF icon, i.e. the one with a photo of a child scattered on the table, with a loupe on top of it. The same thing happens for JPEGs, GIFS and PNGs, but not for com.apple.icns. If I take the com.apple.icns, it displays correctly. What am I doing wrong? __ Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7. Enter now: http://au.docs.yahoo.com/homepageset/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
On Thu, Nov 19, 2009 at 4:33 PM, Chris Idou idou...@yahoo.com wrote: I'm trying to read a TIFF off the pasteboard, but it doesn't seem to work for me. What I'm doing is going into Finder, finding a TIFF file and Command-C it. You've copied the file icon. If you want to copy the file's data, you need to open it in Preview and copy that. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
On Nov 19, 2009, at 4:43 PM, Chris Idou wrote: If I double click the tiff in Finder, and open it in Preview, click it in Preview, Command-A, Command-C, the same thing happens. That's weird. Can you show us the code that reads the image data off the pasteboard? —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
I notice that at least com.apple.icns works when I copy it from Preview, but it doesn't work when just copying from Finder. But either way TextEdit seems to be able to get the right thing if I paste into it. From: Chris Idou idou...@yahoo.com To: Kyle Sluder kyle.slu...@gmail.com Cc: cocoa-dev@lists.apple.com Sent: Fri, 20 November, 2009 11:43:17 AM Subject: Re: tiffs on pasteboard If I double click the tiff in Finder, and open it in Preview, click it in Preview, Command-A, Command-C, the same thing happens. From: Kyle Sluder kyle.slu...@gmail.com To: Chris Idou idou...@yahoo.com Cc: cocoa-dev@lists.apple.com Sent: Fri, 20 November, 2009 11:36:54 AM Subject: Re: tiffs on pasteboard On Thu, Nov 19, 2009 at 4:33 PM, Chris Idou idou...@yahoo.com wrote: I'm trying to read a TIFF off the pasteboard, but it doesn't seem to work for me. What I'm doing is going into Finder, finding a TIFF file and Command-C it. You've copied the file icon. If you want to copy the file's data, you need to open it in Preview and copy that. --Kyle Sluder __ Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7. Enter now: http://au.docs.yahoo.com/homepageset/ ___ 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/idou747%40yahoo.com This email sent to idou...@yahoo.com __ Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7. Enter now: http://au.docs.yahoo.com/homepageset/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
On Nov 19, 2009, at 5:24 PM, Chris Idou wrote: But I'm still confused about one thing: If copying from Finder actually copies the file icon, and not the actual tiff, how come it pastes ok into TextEdit? The Finder also puts the location of the file on the pasteboard, and I believe TextEdit sees that, recognizes that it's an image file, and reads the file into an image. You can do the same fairly easily. —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tiffs on pasteboard
But what are the rules and conventions? Why would Finder put the icon in the pasteboard on the assumption that is what the user wants, but TextEdit would paste in the actual file on the assumption that is what the user wants? It seems schizophrenic. I just want a list of rules of how to use the Pasteboard in a way that conforms to what users expect. If I start ignoring the TIFF part of the pasteboard in favor of the URL on the assumption that is what the user wants, why is the tiff there anyway? And will that get me into trouble in other cases? From: Jens Alfke j...@mooseyard.com To: Chris Idou idou...@yahoo.com Cc: Kyle Sluder kyle.slu...@gmail.com; cocoa-dev@lists.apple.com Sent: Fri, 20 November, 2009 12:29:51 PM Subject: Re: tiffs on pasteboard On Nov 19, 2009, at 5:24 PM, Chris Idou wrote: But I'm still confused about one thing: If copying from Finder actually copies the file icon, and not the actual tiff, how come it pastes ok into TextEdit? The Finder also puts the location of the file on the pasteboard, and I believe TextEdit sees that, recognizes that it's an image file, and reads the file into an image. You can do the same fairly easily. —Jens __ Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7. Enter now: http://au.docs.yahoo.com/homepageset/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
