GTK is a multi-platform toolkit for creating graphical user interfaces.
Go to file
Jonas Ådahl 6df28420d7 tooltip: Implement positioning using gdk_window_move_to_rect()
In order to make tooltip positioning portable, make use of the
move_to_rect API. Some semantical changes are made, as identical
semantics cannot be implemented using the move-to-rect API.

Primarily the implemented semantics are:

Position the tooltip in the center pixels slightly below (defaults to 4
units below) the tooltipped widget. This is always the case for keyboard
driven tooltips; the case where it tries to avoid the pointer cursor is
not implemented.

For pointer position triggered tooltips, implement the following
additional semantics:

Use the current cursor size to determine the padding used to enlarge the
anchor rectangle. This is to try to avoid the cursor overlapping the
tooltip.

If the anchor rectangle is too tall (meaning if we'd be constrained
and flip on the Y axis, it'd flip too far away from the originally
intended position), rely only on the pointer position to position the
tooltip. The approximate pointer cursor rectangle is used as a anchor
rectangle. Ideally we should use the actual pointer cursor rectangle
(image used as well as hotspot coordinate), but we don't have API to
get that information.

If the anchor rectangle isn't to tall, just make sure the tooltip isn't
too far away from the pointer position on the X axis.

Closes: #134
Closes: #432
Closes: #574
Closes: #579
Closes: #878
2018-08-19 01:26:20 +00:00
.gitlab/issue_templates Add an issue template for crashers 2018-04-17 09:39:31 +01:00
.gitlab-ci ci: add hicolor-icon-theme to the docker image 2018-07-20 15:04:26 +02:00
build-aux demos: Make desktop file names match the application id 2018-08-02 12:15:43 +02:00
demos demos: Make desktop file names match the application id 2018-08-02 12:15:43 +02:00
docs migration guide: Mention GtkEventBox 2018-08-05 19:53:02 -04:00
examples examples: Use appliction id as desktop file base name 2018-08-02 11:10:21 +02:00
gdk gdk/wayland: Avoid idempotent wl_subsurface.set_position calls 2018-08-19 01:26:20 +00:00
gsk vulkan: fix warning from g_clear_pointer() changes 2018-07-28 10:54:14 -07:00
gtk tooltip: Implement positioning using gdk_window_move_to_rect() 2018-08-19 01:26:20 +00:00
modules gtkmediafile: Don't leak all the images 2018-07-04 15:05:02 +02:00
po Update Turkish translation 2018-08-12 10:47:44 +00:00
po-properties Updated Lithuanian translation 2018-08-05 16:06:33 +03:00
subprojects meson: Update pango and gdk-pixbuf wrap locations 2018-07-23 20:17:04 +05:30
tests container: Remove focus chains 2018-07-31 22:34:27 +02:00
testsuite Don't fail the build if c++ isn't found 2018-08-18 02:14:56 +00:00
.gitlab-ci.yml ci: Update the image for the Flatpak jobs 2018-07-04 18:32:59 +01:00
AUTHORS
config.h.meson Add aligned allocator support to meson 2018-06-09 13:52:42 +00:00
CONTRIBUTING.md docs: Start defining the owners of code sections 2018-04-16 16:06:33 +01:00
COPYING
gtk.doap Rename the project's DOAP file 2018-02-08 14:11:42 +00:00
gtk+-4.0.pc.in gtk+-4.0.pc: Make sure to add requirements for Gsk (e.g. graphene-1.0) 2016-10-27 08:21:13 +02:00
gtk+-unix-print-4.0.pc.in Rename pc files from 3.0 to 4.0 2016-10-07 10:34:50 -04:00
make-pot make-pot: Make it executable 2017-08-15 16:30:14 +02:00
meson_options.txt build: Make the default setting work on non-Linux Unix-like systems 2018-04-22 21:57:10 +08:00
meson.build meson: Support graphene as a fallback dependency 2018-07-23 20:17:04 +05:30
NEWS Some updates 2018-06-25 19:06:34 -04:00
NEWS.pre-1.0 Split NEWS 2018-01-10 19:06:45 -05:00
NEWS.pre-2.0 Split NEWS 2018-01-10 19:06:45 -05:00
NEWS.pre-3.0 Split NEWS 2018-01-10 19:06:45 -05:00
README.commits
README.md README: Fix Gdk doc website link 2018-08-05 21:59:27 +00:00

GTK+ — The GTK toolkit

Build Status

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 free software and part of the GNU Project. However, 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.

The official download location

The official web site

The official developers blog

Information about mailing lists can be found at

Nightly documentation can be found at

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
  • atk-bridge-2.0

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

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.

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.