Commit graph

8 commits

Author SHA1 Message Date
Vlad Zahorodnii
4ce853e8e4 Prettify license headers 2020-08-07 19:57:56 +00:00
Vlad Zahorodnii
1fb9f6f13a Switch to SPDX license markers
The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.

In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
2020-08-07 19:57:56 +00:00
Vlad Zagorodniy
9dd7a1881b [platforms/wayland] Drop wl-shell support
Summary: wl-shell is deprecated and its support was dropped in kwin.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D23563
2019-09-23 17:28:56 +03:00
Roman Gilg
dbb2cede08 Get output pixel size from output device
Summary:
Get the pixel size directly from the always available output device
interface instead of saving an additional copy in the backends.

Test Plan: Nested Wayland, Drm, virtual backends tested.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Maniphest Tasks: T11459

Differential Revision: https://phabricator.kde.org/D23495
2019-08-28 14:54:14 +02:00
Roman Gilg
f013a4369c [platforms/wayland] Create output devices
Summary:
Since all Wayland session backends now use the same structure of
AbstractWaylandOutput we can create output devices like in the DRM backend.

First let us do this for Wayland nested sessions.

Test Plan: Manually with output-count 1 and 2. Outputs are correctly shown in KScreen.

Reviewers: #kwin

Subscribers: zzag, kwin

Tags: #kwin

Maniphest Tasks: T11140, T11459

Differential Revision: https://phabricator.kde.org/D23473
2019-08-27 12:20:25 +02:00
Vlad Zagorodniy
8af2fa73dc Run clang-tidy with modernize-use-override check
Summary:
Currently code base of kwin can be viewed as two pieces. One is very
ancient, and the other one is more modern, which uses new C++ features.

The main problem with the ancient code is that it was written before
C++11 era. So, no override or final keywords, lambdas, etc.

Quite recently, KDE compiler settings were changed to show a warning if
a virtual method has missing override keyword. As you might have already
guessed, this fired back at us because of that ancient code. We had
about 500 new compiler warnings.

A "solution" was proposed to that problem - disable -Wno-suggest-override
and the other similar warning for clang. It's hard to call a solution
because those warnings are disabled not only for the old code, but also
for new. This is not what we want!

The main argument for not actually fixing the problem was that git
history will be screwed as well because of human factor. While good git
history is a very important thing, we should not go crazy about it and
block every change that somehow alters git history. git blame allows to
specify starting revision for a reason.

The other argument (human factor) can be easily solved by using tools
such as clang-tidy. clang-tidy is a clang-based linter for C++. It can
be used for various things, e.g. fixing coding style(e.g. add missing
braces to if statements, readability-braces-around-statements check),
or in our case add missing override keywords.

Test Plan: Compiles.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, apol, romangg, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D22371
2019-07-22 20:03:22 +03:00
Roman Gilg
1a11abc821 [platforms/x11/standalone] Port to AbstractOutput
Summary:
Represent outputs in the X11 session via AbstractOutput. For that we
move all Wayland specific parts of AbstractOutput into a new subclass
AbstractWaylandOutput and let the outputs of our Wayland backends inherit
from there.

This should allow us to get rid of the Screens class later on.

Test Plan: Manually in X session.

Reviewers: #kwin, zzag, davidedmundson

Reviewed By: #kwin, zzag, davidedmundson

Subscribers: ngraham, zzag, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D19208
2019-06-13 11:39:25 +02:00
Roman Gilg
7b13393b64 [platforms/wayland] Multi output support
Summary:
This patch rewrites large parts of the Wayland platform plugin, in order to
facilitate the testing of multi output behavior in nested KWin sessions.

For that a new class WaylandOutput is introduced, which is based on
AbstractOutput and by that shares functionality with our virtual and DRM
platform plugins.

The EGL/GBM and QPainter backends have been remodelled after the DRM one,
sharing similiarities there as well now.

Pointer grabbing has been rewritten to support multiple outputs, now using
pointer locking instead of confining and drawing in this case onto a sub-
surface, which get dynamically recreated in between the different output
surfaces while the cursor is being moved.

Window resizing is possible if host supports xdg-shell, but currently the
mode size does not yet fill the new window size.

The number of outputs can be set by command line argument `--output-count`,
scaling is also supported by setting the argument `--scale`.

Further steps could be:
* Enabling automatic fill of resized windows via Wayland mode change
* Multiple diverging initial sizes and scale factors for mulitple outputs

**Watch it in action:** https://youtu.be/FYItn1jvkbI

Test Plan: Tested it in live session.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, zzag, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D18465
2019-03-20 14:43:03 +01:00