![]() The previous implementation used relative X offsets for both left and right-side floats. This made right-side floats super awkward, since we could only determine their X position once the width of the BFC root was known, and for BFC roots with automatic width, this was not even working at all most of the time. This patch changes the way we deal with floats so that BFC keeps track of the offset-from-edge for each float. The offset is the distance from the BFC root edge (left or right, depending on float direction) to the "innermost" margin edge of the floating box. Floating box are now laid out in two passes: while going through the normal flow layout, we put floats in their *static* position (i.e the position they would have occupied if they weren't floating) and then update the Y position value to the final one. The second pass occurs later on, when the BFC root has had its width assigned by the parent context. Once we know the root width, we can set the X position value of floating boxes. (Because the X position of right-side floats is relative to the right edge of the BFC root.) |
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.github | ||
AK | ||
Base | ||
Documentation | ||
Kernel | ||
Meta | ||
Ports | ||
Tests | ||
Toolchain | ||
Userland | ||
.clang-format | ||
.clang-tidy | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.pre-commit-config.yaml | ||
.prettierignore | ||
.prettierrc | ||
azure-pipelines.yml | ||
CMakeLists.txt | ||
CONTRIBUTING.md | ||
LICENSE | ||
README.md |
SerenityOS
Graphical Unix-like operating system for x86 computers.
About
SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.
Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.
You can watch videos of the system being developed on YouTube:
Screenshot
Kernel features
- x86 (32-bit) and x86_64 (64-bit) kernel with pre-emptive multi-threading
- Hardware protections (SMEP, SMAP, UMIP, NX, WP, TSD, ...)
- IPv4 stack with ARP, TCP, UDP and ICMP protocols
- ext2 filesystem
- POSIX signals
- Purgeable memory
- /proc filesystem
- Pseudoterminals (with /dev/pts filesystem)
- Filesystem notifications
- CPU and memory profiling
- VMWare/QEMU mouse integration
System services
- Launch/session daemon (SystemServer)
- Compositing window server (WindowServer)
- Text console manager (TTYServer)
- DNS client (LookupServer)
- Network protocols server (RequestServer and WebSocket)
- Software-mixing sound daemon (AudioServer)
- Desktop notifications (NotificationServer)
- HTTP server (WebServer)
- Telnet server (TelnetServer)
- DHCP client (DHCPClient)
Libraries
- C++ templates and containers (AK)
- Event loop and utilities (LibCore)
- 2D graphics library (LibGfx)
- OpenGL 1.x compatible library (LibGL)
- GUI toolkit (LibGUI)
- Cross-process communication library (LibIPC)
- HTML/CSS engine (LibWeb)
- JavaScript engine (LibJS)
- Markdown (LibMarkdown)
- Audio (LibAudio)
- Digital Signal Processing/Synthesizer Chains (LibDSP)
- PCI database (LibPCIDB)
- Terminal emulation (LibVT)
- Out-of-process network protocol I/O (LibProtocol)
- Mathematical functions (LibM)
- ELF file handling (LibELF)
- POSIX threading (LibPthread)
- Higher-level threading (LibThreading)
- Transport Layer Security (LibTLS)
- HTTP and HTTPS (LibHTTP)
- IMAP (LibIMAP)
Userland features
- Unix-like libc and userland
- Shell with pipes and I/O redirection
- On-line help system (both terminal and GUI variants)
- Web browser (Browser)
- C++ IDE (HackStudio)
- Desktop synthesizer (Piano)
- E-mail client (Mail)
- Various desktop apps & games
- Color themes
How do I read the documentation?
Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man
and updated automatically.
When running SerenityOS you can use man
for the terminal interface, or help
for the GUI.
How do I build and run this?
See the SerenityOS build instructions
Before opening an issue
Please see the issue policy.
FAQ: Frequently Asked Questions
Get in touch
Join our Discord server: SerenityOS Discord
Author
- Andreas Kling - awesomekling
Contributors
- Robin Burchell - rburchell
- Conrad Pankoff - deoxxa
- Sergey Bugaev - bugaevc
- Liav A - supercomputer7
- Linus Groh - linusg
- Ali Mohammad Pur - alimpfard
- Shannon Booth - shannonbooth
- Hüseyin ASLITÜRK - asliturk
- Matthew Olsson - mattco98
- Nico Weber - nico
- Brian Gianforcaro - bgianfo
- Ben Wiederhake - BenWiederhake
- Tom - tomuta
- Paul Scharnofske - asynts
- Itamar Shenhar - itamar8910
- Luke Wilde - Lubrsi
- Brendan Coles - bcoles
- Andrew Kaster - ADKaster
- thankyouverycool - thankyouverycool
- Idan Horowitz - IdanHo
- Gunnar Beutner - gunnarbeutner
- Tim Flynn - trflynn89
- Jean-Baptiste Boric - boricj
- Stephan Unverwerth - sunverwerth
- Max Wipfli - MaxWipfli
- Daniel Bertalan - BertalanD
- Jelle Raaijmakers - GMTA
- Sam Atkins - AtkinsSJ
- Tobias Christiansen - TobyAsE
- Lenny Maiorani - ldm5180
- sin-ack - sin-ack
- Jesse Buhagiar - Quaker762
- Peter Elliott - Petelliott
- Karol Kosek - krkk
- Mustafa Quraish - mustafaquraish
- David Tuin - davidot
- Leon Albrecht - Hendiadyoin1
- Tim Schumacher - timschumi
- Marcus Nilsson - metmo
- Gegga Thor - Xexxa
- kleines Filmröllchen - kleinesfilmroellchen
- Kenneth Myhra - kennethmyhra
(And many more!) The people listed above have landed more than 100 commits in the project. :^)
License
SerenityOS is licensed under a 2-clause BSD license.