a26fca0117
The min height reported by ClutterText when ellipsize and line-wrapping are enabled was too small to fit the text. The coordinates from `pango_layout_get_line_extents()` are baseline relative, so the `y` coordinate means that the highest ascent would be `-y` above the baseline and height gives the span between the ascent above the baseline and the descent below it, so `logical_line_rect.y + logical_line_rect.height` gives us the size of the descent. This is the wrong height to use for the height of the actor. The coordinates of the layout extents don't seems to be related to the baseline and are just for offsets when rendering, that's probably how this bug got initially introduced. Therefore, the `y` coordinate from the layout is the correct offset to use, even though, when looking at `pango_layout_get_extends_internal()`, it appears that `y` is always set to 0. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3610>
Mutter
Mutter is a Wayland display server and X11 window manager and compositor library.
When used as a Wayland display server, it runs on top of KMS and libinput. It implements the compositor side of the Wayland core protocol as well as various protocol extensions. It also has functionality related to running X11 applications using Xwayland.
When used on top of Xorg it acts as a X11 window manager and compositing manager.
It contains functionality related to, among other things, window management, window compositing, focus tracking, workspace management, keybindings and monitor configuration.
Internally it uses a fork of Cogl, a hardware acceleration abstraction library used to simplify usage of OpenGL pipelines, as well as a fork of Clutter, a scene graph and user interface toolkit.
Mutter is used by, for example, GNOME Shell, the GNOME core user interface, and by Gala, elementary OS's window manager. It can also be run standalone, using the command "mutter", but just running plain mutter is only intended for debugging purposes.
Contributing
To contribute, open merge requests at https://gitlab.gnome.org/GNOME/mutter.
It can be useful to first look at the GNOME Handbook and the documentation and API references below first.
Documentation
- Coding style and conventions
- Git conventions
- Code overview
- Building and Running
- Debugging
- Monitor configuration
API Reference
- Meta: https://mutter.gnome.org/meta/
- Clutter: https://mutter.gnome.org/clutter/
- Cally: https://mutter.gnome.org/cally/
- Cogl: https://mutter.gnome.org/cogl/
- CoglPango: https://mutter.gnome.org/cogl-pango/
- Mtk: https://mutter.gnome.org/mtk/
License
Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.