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Here comes GTK4? Is the current D-Rats GTK3 work going to be mostly compatible?
¿ªÔÆÌåÓýHey Everyone, I saw this today from the Debian bug tracking system and the hits of start of removing GTK2.? Read the details here as it seems that even GTK4 is just around the corner.? Does anyone know if all this GTK3 work will be mostly compatible with GTK4? --David KI6ZHD Your message dated Wed, 13 Oct 2021 20:23:02 +0000 with message-id <E1makmE-000104-0H@...> and subject line Bug#967595: fixed in libzia 4.32-1 has caused the Debian Bug report #967595, regarding libzia: depends on deprecated GTK 2 to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact owner@... immediately.) ForwardedMessage.eml
Source: libzia Severity: normal User: pkg-gnome-maintainers@... Usertags: gtk2 oldlibs Control: block 947713 by -1 This package has Build-Depends on GTK 2 (libgtk2.0-dev), or produces binary packages with a Depends on GTK 2. GTK 2 was superseded by GTK 3 in 2011 (see ). It no longer receives any significant upstream maintenance, and in particular does not get feature development for new features like UI scaling on high-pixel-density displays (HiDPI) and native Wayland support. GTK 3 is in maintenance mode and GTK 4 is approaching release, so it seems like a good time to be thinking about minimizing the amount of GTK 2 in the archive. GTK 2 is used by some important productivity applications like GIMP, and has also historically been a popular UI toolkit for proprietary software that we can't change, so perhaps removing GTK 2 from Debian will never be feasible. However, it has reached the point where a dependency on it is a bug - not a release-critical bug, and not a bug that can necessarily be fixed quickly, but a piece of technical debt that maintainers should be aware of. A porting guide is provided in the GTK 3 documentation: Some libraries (for example libgtkspell0) expose GTK as part of their API/ABI, in which case removing the deprecated dependency requires breaking API/ABI. For these libraries, in many cases there will already be a corresponding GTK 3 version (for example libgtkspell3-3-0), in which case the GTK 2-based library should probably be deprecated or removed itself. If there is no GTK 3 equivalent, of a GTK 2-based library, maintainers should talk to the dependent library's upstream developers about whether the dependent library should break API/ABI and switch to GTK 3, or whether the dependent library should itself be deprecated or removed. A few packages extend GTK 2 by providing plugins (theme engines, input methods, etc.) or themes, for example ibus and mate-themes. If these packages deliberately support GTK 2 even though it is deprecated, and they also support GTK 3, then it is appropriate to mark this mass-filed bug as wontfix for now. I have tried to exclude these packages from the mass-bug-filing, but I probably missed some of them. Regards, smcv |
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On 10/13/2021 4:43 PM, David Ranch wrote:
No real way to tell until we try GTK4. An example is in mapdisplay.py. The menu handling code from GTK-2 still works, but is deprecated in GTK-3, I think I went through two levels of deprecated methods to find what the current practice is, and it appears to be deprecated in GTK-4. And I have not yet determined what is the supported method in GTK-4 and it it can be used in GTK-3. While there is a porting guide from GTK-2 to GTK-3, I have not really found it to be very helpful. Much of the code in D-rats does not match what is in the porting guide or online examples. As I posted before, for mapdisplay, I am going to start a rewrite of it, as the methods of doing that type of graphics displays has completely changed from GTK-2. So I am going to have to learn the new method a bit at a time. 73, -John wb8tyw@... / |
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