GTK+ Archive

Accessibility improvements in GTK 4.14

GTK 4.14 brings various improvements on the accessibility front, especially for applications showing complex, formatted text; for WebKitGTK; and for notifications. ↫ Emmanuele Bassi Excellent improvements that, if you listen to those that need these improvements, are sorely needed in GTK 4.

New renderers for GTK

Recently, GTK gained not one, but two new renderers: one for GL and one for Vulkan. Since naming is hard, we reused existing names and called them “ngl” and “vulkan”. They are built from the same sources, therefore we also call them “unified” renderers. As mentioned already, the two renderers are built from the same source. It is modeled to follow Vulkan apis, with some abstractions to cover the differences between Vulkan and GL (more specifically, GL 3.3+ and GLES 3.0+). This lets us share much of the infrastructure for walking the scene graph, maintaining transforms and other state, caching textures and glyphs, and will make it easier to keep both renderers up-to-date and on-par. ↫ GTK Development Blog This is well above my paygrade, but I’m sure it’s still of interest to y’all.

GTK: introducing graphics offload

In the best case, we may be able to avoid feeding the data through the compositing pipeline of the compositor as well, if the compositor supports direct scanout and the dmabuf is suitable for it. In particular on mobile systems, this may avoid using the GPU altogether, thereby reducing power consumption. I don’t understand what’s happening but it seems like a good idea? Can anyone help?

GTK 4.0 released

GTK 4.0 has been released. It is impossible to summarize 4 years of development in a single post. We’ve written detailed articles about many of the new things in this release over the past year: Data transfers, Event controllers, Layout managers, Render nodes, Media playback, Scalable lists, Shaders, Accessibility. GTK is the backbone of virtually everything I do on my computers – I run GTK desktops – and I know I’m far from the only one. The benefits and improvements of a new release of this toolkit will find their way to all of the major GTK desktops, and this is the first major step in that proces.

A GTK+ 3 update

When we started development towards GTK+ 4, we laid out a plan that said GTK+ 3.22 would be the final, stable branch of GTK+ 3. And we've stuck to this for a while.

I has served us reasonably well - GTK+ 3 stopped changing in drastic ways, which was well-received, and we are finally seeing applications moving from GTK+ 2.

But, GTK+ 4 is taking its time to mature (more on that in another post), and some nice new features (such as font variation support, or Emoji completion) languish unused in master. We also get requests for critical APIs from some of the ported applications.

Therefore, we have decided that it is better to change course and allow a limited amount of new features and API in GTK+ 3.x, by doing a GTK+ 3.24 release in September.

I'm not even remotely versed enough in the world of GTK+ to say anything meaningful about this, but it does seem like a welcome move for developers and users of GTK+ alike.

Gtk+ 3.2 Released

The latest version of GTk+, version 3.2, has been released. While this new release contains many smaller, less invasive changes, it also has experimental support for two very important new features. First, the ability to run Gtk+ applications inside a browser using HTML5. Second, initial support for the Wayland display server.

Resolution Independence Coming to GTK+

Red Hat's David Zeuthen blogged today about the huge patch he submitted to GTK+ that will allow the toolkit to achieve resolution independence - widget and font size adapting to your screen's real estate; no more tiny application lost in the corner of your high resolution screen. Although more work is obviously required, Zeuthen's idea is to use RI as the hot-new-feature selling point of the upcoming 3.0 GTK+ release. Discussion is going on in the gtk-devel mailing list and there is an ogg video of the feature in action.

GTK+ State of the Union, Plans for 3.0

At last week's Guadec meeting, Kristian Rietveld delivered the GTK+ "state of the union" report. GTK+ is the multi-platform toolkit behind a number of popular applications and, perhaps most well known, the Gnome Desktop environment for Linux. Read the full report here.

Reinventing GTK: Envisioning the Future of the Toolkit

Ars Technica has an article about recent proposals to evolve the GTK+ toolkit: "The developers of GTK are preparing for a major overhaul that aims to resolve many of the framework's most significant deficiencies and add next-generation features that will increase flexibility and simplify development. This effort is still in the earliest planning stage, but several intriguing proposals provide valuable insight into some of the changes envisioned by prominent developers."

GTK+ 3.0: Getting Serious

"On the 2008 GTK+ Hackfest in Berlin, Imendio’s GTK+ hackers presented their vision of GTK+’s future and the reasons why they think that GTK+ has to make a step forward, embrace change and break ABI compatibility. Other GTK+ developers have also voiced their opinions, listing parts of GTK+ that need serious love, but state that they don’t require breakage. Whether or not these are the things that will mark the road to GTK+ 3.0, almost all of them need attention. And give hints to the shape of things to come."

GNOME Theme Designer Adds Transparency to Gtk+

"GNOME theme engine designer Andrea Cimitan has implemented support for transparent widgets in the Murrine GTK theme engine, bringing Vista-like translucent glass effects to the GNOME desktop. Cimitan used RGBA colormaps to implement the feature and says that, with only 10 or 20 extra lines of code, translucency can easily be added to other theme engines that support RGBA. Cimitan says that the addition of translucency effects proves that critics of GTK are wrong. "n the last week I've seen a lot of people claiming about 'lacks' of Gtk+ capabilities," wrote Cimitan in a blog entry. "Some of them still think that Gtk+ doesn't have RGBA support... Or it will require nasty hacks. This is absolutely false."

Making Linux Application User Interfaces Richer with OpenGL

"Ars was at FOSSCamp this weekend. Think of FOSSCamp as an 'un-conference' without a set agenda where the minds behind open source projects get together and plot world domination (and, err, ways to improve their code). One fascinating session (and one that shows how FOSSCamp works and why it's so productive) was given by Mirco Muller, who discussed using OpenGL in GTK applications. Muller - the developer behind Cairo-Clock and the LowFat image viewer - talked about the state of OpenGL support in desktop applications and described various techniques that developers can use to make OpenGL content integrate better with conventional GTK user interfaces."

GPE 2.8 Released

The release 2.8 of GPE is complete and available for download. The new release comes with a large number of bugfixes and improvements such as an improved calendar, many fixed import/export and synchronisation issues as well as support for Maemo in additional components like Starling (the new audio player) and gpe-filemanager.