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Mustafa Quraish 285a888b61 PixelPaint: Fix layer dragging bug
A previous commit I made broke layer dragging since the hole_index
was always being computed with respect to the top of the layer list
widget, however we were now drawing layers from the bottom. When
you didn't have enough layers to fill up the full height, dragging
them around would be weird.

This patch computes the hole index correctly using the same offset
we start drawing from, and fixes the behavior.
2021-09-07 00:48:48 +02:00
.github Meta: Remove Coverity workflow until it's ready 2021-09-03 19:01:10 +04:30
AK AK: Use the full name of 'integer_sequence_generate_array' in Variant.h 2021-09-06 21:26:47 +02:00
Base Emoji: Add various Emoji/Arrows 2021-09-05 14:49:47 +01:00
Documentation Kernel: Make all Spinlocks use u8 for storage, remove template 2021-09-05 20:46:02 +02:00
Kernel Kernel: Let aarch64 port call into C++ 2021-09-06 21:57:59 +01:00
Meta Meta: Unbreak serenity.sh run aarch64 after 918f7cb4a8 2021-09-06 21:57:59 +01:00
Ports Ports: Update relocated ports 2021-08-30 20:18:07 +02:00
Tests LibUnicode: Implement locale-aware BEFORE_DOT special casing 2021-09-06 15:24:27 +01:00
Toolchain Meta: Add the ability to specify clang with serenity.sh 2021-09-03 23:12:17 +02:00
Userland PixelPaint: Fix layer dragging bug 2021-09-07 00:48:48 +02:00
.clang-format Meta: Update .clang-format to not indent nested namespaces 2020-03-14 10:10:21 +01:00
.gitattributes Meta: Mark the other image file formats as binary in .gitattributes 2021-05-20 08:04:28 +02:00
.gitignore Meta: Add run-local.sh 2021-08-07 11:47:07 +02:00
.mailmap Everywhere: Use my shiny new serenityos.org email :^) 2021-09-03 12:22:36 +02:00
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Allow Unicode escape sequences in identifiers 2021-08-19 23:49:25 +02:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
azure-pipelines.yml CI: Build Lagom with fuzzing on Azure 2021-08-17 21:06:15 +01:00
CMakeLists.txt Build: Pass "-z separate-code" to linker 2021-08-31 16:46:16 +02:00
CONTRIBUTING.md Meta: Update CONTRIBUTING.md 2021-07-09 10:18:24 +02:00
LICENSE Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
README.md Meta: Add Karol Kosek to the contributors list :^) 2021-09-04 23:11:04 +02:00

SerenityOS

Graphical Unix-like operating system for x86 computers.

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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.

I (Andreas) regularly post raw hacking sessions and demos on my YouTube channel.

Sometimes I write about the system on my github.io blog.

I'm also on Patreon and GitHub Sponsors if you would like to show some support that way.

Screenshot

Screenshot as of b36968c.png

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
  • SoundBlaster 16 driver
  • 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

Contributors

(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.