64a959dad9
DnD under Windows needed 3 fixes to work with Gtk.DropTarget. 1. The droptarget_w32format_contentformat_map list never gets filled so the gdk_win32_drop_read_async throws "No compatible transfer format found". This is an easy fix and done the same way in the win32 clipboard code. 2. After a drop no gdk_drop_emit_leave_event gets emitted. This causes a second drop to trigger a bunch of assertion 'self->drop == drop' failed because the first drop is still active. This is also an easy fix and done the same way by the macos backend. 3. Handling gdk_drop_status/gdk_drop_get_actions interaction. In gtk_drop_target_do_drop the code ```gdk_drop_finish (self->drop, gdk_drop_get_actions (self->drop));``` calls the finish operation with the actions of the drop which triggers ```g_return_if_fail (gdk_drag_action_is_unique (action));``` in gdk_drop_finish. The code assumes that GdkDrop::actions gets narrowed down by calling gdk_drop_status. This is hard to assure because at the same time gdk_drop_get_actions is used by gtk_drop_target_accept to figure out if a drag is accepted. GdkDrop::actions serves a double purpose here as the supported source actions and the currently agreed on action. Both the x11 and the wayland backend get this wrong somewhat too. Under wayland/x11 when a drag coming from a source that supports both MOVE and COPY is first hovering a drop target that only supports COPY it is afterwards no longer accepted by other drop targets only accepting MOVE. Under x11 this is permanent for this drag but with wayland the drag recovers when hovering other widgets. The win32 backend now sets the supported source actions before any enter/move/drop and narrows them down in gdk_win32_drop_status. The patch only touches the win32 backend and fixes all three issues, for me restoring DnD under windows. Closes #4498 |
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| .gitlab/issue_templates | ||
| .gitlab-ci | ||
| build-aux | ||
| demos | ||
| docs | ||
| examples | ||
| gdk | ||
| gsk | ||
| gtk | ||
| modules | ||
| po | ||
| subprojects | ||
| tests | ||
| testsuite | ||
| tools | ||
| .clang-format | ||
| .editorconfig | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| AUTHORS | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| gtk.doap | ||
| gtk.supp | ||
| lsan.supp | ||
| make-pot | ||
| make-release.sh | ||
| meson_options.txt | ||
| meson.build | ||
| NEWS | ||
| NEWS.pre-1.0 | ||
| NEWS.pre-2.0 | ||
| NEWS.pre-3.0 | ||
| NEWS.pre-4.0 | ||
| README.md | ||
GTK — The GTK toolkit
General information
GTK is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK is suitable for projects ranging from small one-off projects to complete application suites.
GTK is a free and open-source software project. The licensing terms for GTK, the GNU LGPL, allow it to be used by all developers, including those developing proprietary software, without any license fees or royalties.
GTK is hosted by the GNOME project (thanks!) and used by a wide variety of applications and projects.
The official download location
The official web site
The official developers blog
Discussion forum
Nightly documentation can be found at
- Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk4/
- Gdk: https://gnome.pages.gitlab.gnome.org/gtk/gdk4/
- Gsk: https://gnome.pages.gitlab.gnome.org/gtk/gsk4/
Nightly flatpaks of our demos can be installed from the GNOME Nightly repository:
flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepoflatpak install gnome-nightly org.gtk.Demo4flatpak install gnome-nightly org.gtk.WidgetFactory4flatpak install gnome-nightly org.gtk.IconBrowser4
Building and installing
In order to build GTK you will need:
You will also need various dependencies, based on the platform you are building for:
If you are building the X11 backend, you will also need:
- Xlib, and the following X extensions:
- xrandr
- xrender
- xi
- xext
- xfixes
- xcursor
- xdamage
- xcomposite
If you are building the Wayland backend, you will also need:
- Wayland-client
- Wayland-protocols
- Wayland-cursor
- Wayland-EGL
Once you have all the necessary dependencies, you can build GTK by using Meson:
$ meson _build .
$ cd _build
$ ninja
You can run the test suite using:
$ meson test
And, finally, you can install GTK using:
$ sudo ninja install
Complete information about installing GTK and related libraries can be found in the file:
docs/reference/gtk/html/gtk-building.html
Or online
Default branch renamed to main
The default development branch of GTK has been renamed to main.
To update your local checkout, use:
git checkout master
git branch -m master main
git fetch
git branch --unset-upstream
git branch -u origin/main
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main
How to report bugs
Bugs should be reported on the issues page.
In the bug report please include:
-
Information about your system. For instance:
- which version of GTK you are using
- what operating system and version
- for Linux, which distribution
- if you built GTK, the list of options used to configure the build
And anything else you think is relevant.
-
How to reproduce the bug.
If you can reproduce it with one of the demo applications that are built in the demos/ subdirectory, on one of the test programs that are built in the tests/ subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.
-
If the bug was a crash, the exact text that was printed out when the crash occurred.
-
Further information such as stack traces may be useful, but is not necessary.
Contributing to GTK
Please, follow the contribution guide to know how to start contributing to GTK.
If you want to support GTK financially, please consider donating to the GNOME project, which runs the infrastructure hosting GTK.
Release notes
The release notes for GTK are part of the migration guide in the API reference. See:
Licensing terms
GTK is released under the terms of the GNU Lesser General Public License, version 2.1 or, at your option, any later version, as published by the Free Software Foundation.
Please, see the COPYING file for further information.
GTK includes a small number of source files under the Apache license:
- A fork of the roaring bitmaps implementation in gtk/roaring
- An adaptation of timsort from python in gtk/timsort