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Vlad Zahorodnii 7fffe99328 build: Add -Wno-unused-parameter compiler option 
Due to being a compositor, kwin has to conform to some certain
interfaces. It means a lot of virtual functions and function tables to
integrate with C APIs. Naturally, we not always want to use every
argument in such functions.

Since we get -Wunused-parameter from -Wall, we have to plumb those
unused arguments in order to suppress compiler warnings at the moment.

However, I don't think that extra work is worth it. We cannot change or
alter prototypes in any way to fix the warning the desired way. Q_UNUSED
and similar macros are not good indicators of whether an argument is
used too, we tend to overlook putting or removing those macros. I've
also noticed that Q_UNUSED are not used to guide us with the removal no
longer needed parameters.

Therefore, I think it's worth adding -Wno-unused-parameter compiler
option to stop the compiler producing warnings about unused parameters.
It changes nothing except that we don't need to put Q_UNUSED anymore,
which can be really cumbersome sometimes. Note that it doesn't affect
unused variables, you'll still get a -Wunused-variable compiler warning
if a variable is unused.
 		2 years ago
LICENSES Remove unused license file 2 years ago
autotests build: Add -Wno-unused-parameter compiler option 2 years ago
cmake/modules Fix some tests not building with Qt 6 2 years ago
data Run clang-tidy with -checks=readability-braces-around-statements fixit 3 years ago
doc Fix minor typos 2 years ago
kconf_update Ship kconf update script to clean animation factor from kwinrc 2 years ago
po GIT_SILENT Sync po/docbooks with svn 2 years ago
src build: Add -Wno-unused-parameter compiler option 2 years ago
tests build: Add -Wno-unused-parameter compiler option 2 years ago
.clang-format Run clang-format 3 years ago
.gitignore Run clang-format 3 years ago
.gitlab-ci.yml Add Qt 6 FreeBSD CI 2 years ago
.kde-ci.yml ci: Require tests to pass on Linux/Qt6 2 years ago
CMakeLists.txt build: Add -Wno-unused-parameter compiler option 2 years ago
CONTRIBUTING.md doc: modernise HACKING -> CONTRIBUTING guidelines and information 3 years ago
KWinDBusInterfaceConfig.cmake.in Expose org.kde.kwin.ColorCorrect.xml dbus file 3 years ago
Mainpage.dox
…
README.md doc: modernise HACKING -> CONTRIBUTING guidelines and information 3 years ago
logo.png
…
plasma-kwin_wayland.service.in Re-enable systemd managed kwin 3 years ago
plasma-kwin_x11.service.in [systemd] Fix X11 service file 3 years ago

README.md

KWin

KWin is an easy to use, but flexible, composited Window Manager for Xorg windowing systems (Wayland, X11) on Linux. Its primary usage is in conjunction with a Desktop Shell (e.g. KDE Plasma Desktop). KWin is designed to go out of the way; users should not notice that they use a window manager at all. Nevertheless KWin provides a steep learning curve for advanced features, which are available, if they do not conflict with the primary mission. KWin does not have a dedicated targeted user group, but follows the targeted user group of the Desktop Shell using KWin as it's window manager.

KWin is not...

  • a standalone window manager (c.f. openbox, i3) and does not provide any functionality belonging to a Desktop Shell.
  • a replacement for window managers designed for use with a specific Desktop Shell (e.g. GNOME Shell)
  • a minimalistic window manager
  • designed for use without compositing or for X11 network transparency, though both are possible.

Contributing to KWin

Please refer to the contributing document for everything you need to know to get started contributing to KWin.

Contacting KWin development team

  • mailing list: kwin@kde.org
  • IRC: #kde-kwin on irc.libera.chat

Support

Application Developer

If you are an application developer having questions regarding windowing systems (either X11 or Wayland) please do not hesitate to contact us. Preferable through our mailing list. Ideally subscribe to the mailing list, so that your mail doesn't get stuck in the moderation queue.

End user

Please contact the support channels of your Linux distribution for user support. The KWin development team does not provide end user support.

Reporting bugs

Please use KDE's bugtracker and report for product KWin.

Guidelines for new features

A new Feature can only be added to KWin if:

  • it does not violate the primary missions as stated at the start of this document
  • it does not introduce instabilities
  • it is maintained, that is bugs are fixed in a timely manner (second next minor release) if it is not a corner case.
  • it works together with all existing features
  • it supports both single and multi screen (xrandr)
  • it adds a significant advantage
  • it is feature complete, that is supports at least all useful features from competitive implementations
  • it is not a special case for a small user group
  • it does not increase code complexity significantly
  • it does not affect KWin's license (GPLv2+)

All new added features are under probation, that is if any of the non-functional requirements as listed above do not hold true in the next two feature releases, the added feature will be removed again.

The same non functional requirements hold true for any kind of plugins (effects, scripts, etc.). It is suggested to use scripted plugins and distribute them separately.