Free source application software for linux

Keystone is a cross-platform, object oriented application framework which allows applications to be written to build on the target platforms of GNU/Linux and Win32 without modification of their source.
Keystone Application Framework implements several modern Web standards, including SVG graphics and the XUL user interface description language.
Enhancements:
- A significant development in this release is the optional use of the GDI+ (Win32) and CairoGraphics (Linux) rendering backends to render SVG content.
- In addition, support for SVG paths has been much improved with the ability to render bezier and elliptical segments.

LAMP Application Server project is a combination of common open source tools that provides a unified system from which administrators, developers, and other parties can manage a large application cluster. The underlying platform is LAMP based.
Enhancements:
- Fixed vhost config to correctly handle index pages on static directory area
- Fixed a MySQL install bug. Table `domain_dns_config` is now MyISAM like the rest.

Echo is a framework for developing object-oriented, event-driven Web applications.
Echo removes the developer from having to think in terms of "page-based" applications and enables him/her to develop applications using the conventional object-oriented and event-driven paradigm for user interface development.
Knowledge of HTML, HTTP, and JavaScript is not required. Echo is open-source software distributed under the terms of the Mozilla Public License or the GNU LGPL License.
Enhancements:
- Version 1.1.4 adds support for specifying the order of tab-based navigation of components. The release also fixes bugs reported in previous versions, including the issues discovered with setting component focus.

The Adobe Source Libraries (ASL) are a collection of C++ libraries building foundation technology to allow the construction of commercial applications by assembling generic algorithms through declarative descriptions.
Enhancements:
- GIL version 2.1 (support for sub-byte aligned pixel values in images).
- An ASL version_0 namespace has been introduced to maintain binary compatibility going forward.
- There are poly< > library improvements. adobe/vector.hpp and adobe/closed_hash.hpp have been added as generic containers.
- There are many other improvements.

GNU Source-highlight produces a document with syntax highlighting when given a source file.

Source-highlight reads source language specifications dynamically, thus it can be easily extended (without recompiling the sources) for handling new languages.

GNU Source-highlight also reads output format specifications dynamically, and thus it can be easily extended (without recompiling the sources) for handling new output formats. The syntax for these specifications is quite easy (take a look at the manual).

Since version 2.2, source-highlight can also generate cross references; in order to do this it relies on GNU Ctags.

These are the output formats already supported:

HTML
XHTML
LATEX
TEXINFO
ANSI color escape sequences (you can use this feature with less)

These are the input languages (or input formats) already supported (in alphabetical order):

C/C++
Bison
Caml
Changelog
Diff
Flex
Fortran
Html
Java
Javascript
Latex
Logtalk
Log files
Lua
ML
Pascal
Perl
PHP
Prolog
Python
Ruby

HCS Open Source Project consists of a do-it-yourself home automation hardware and software system.

The HCS Open Source Project is a stand-alone home automation control system which consists of hardware (main controllers and remote networked controllers) and software to monitor and control various devices around your house.

The current plans support using wired and wireless X10 modules, as well as analog, digital, and voice input and output. Once the HCS is programmed, the use of a PC is not required.

CS stands for Home Control System. Originally designed by Steve Ciarcia for the article "Home Run Control System" for Byte magazine.

What is the HCS II? The HCS II is an expandable, network-based (RS485), intelligent-node, industrial-oriented supervisory control system intended for demanding home control applications.

The HCS incorporates direct and remote digital inputs and outputs, direct and remote analog inputs and outputs, real-time or Boolean decision event triggering, X-10 transmission and reception, infrared remote control transmission and reception, remote LCD displays, and a master console.

The HCS II system architecture consists of a central supervisory controller (SC) connected to up to 32 other functional modules (called links) via a RS485 serial network. The SC and the COMM-Links can operate independently and dont need each other to function.

This allows easy testing or incorporation as intelligent subsystems in other control equipment. Initially the subsystems links all shared a comon 8031 controller board (generically called a COMM-Link) with the I/O customized for each application.

Graphico is an open source 3D graphics application programming interface.

Graphico works with either Java or C++. The design of Graphico is based on OpenGL. Two independent Java versions of Graphico exist. The first version renders to a Java image that can be displayed in a Java application or any internet browser capable of executing Java 1.1 code. The second version uses Java 3D for increased performance. The C++ version uses OpenGL.

The different versions of Graphico are known as:

GoJava

This version uses Java to do all of the rendering. The Java 3D extension is not utilized. Using this version of Graphico allows for displaying in any browser capable of executing Java 1.1 code, which includes Internet Explorer and Netscape. With this version of Graphico it is possible to integrate Graphico into HTML documents. Since this version is the most portable and integrates well with the internet, all examples with this distribution use this version of Graphico. While this version is suitable for many things, it is not suitable for rendering complex large scenes at high animation frame rates. When better animation performance is required, the same Java applet/application can run with the GoJava3D implementation of Graphico.

GoJava3D

This version makes use of Java 3D. If you have have special 3D graphics hardware and an implementation of Java 3D that is set up to work with the graphics hardware, then this is the best way to run a Graphico applet/application. With this version it is more difficult to reach all internet users with Graphico graphics and to incorporate Graphico into an HTML document, which is why the GoJava implementation exists.

GoCpp

This version is a C++ version that uses OpenGL as the Graphico rendering engine. It serves as an easy way to move Graphico graphics code between Java and C++. This version is not implemented with any special GUI (Graphical User Interface) in mind. While all the C++ example in this distribution use the GLUT (OpenGL Utility Toolkit) via GoGlutInterface, it is not necessary to do so. Just like OpenGL, Graphico leaves all GUI specific code up to the programmer.