Free paint software for linux

Xpaint is a color image editing tool which features most standard paint program options. It allows for the editing of multiple images simultaneously and supports various formats, including PPM, XBM, TIFF, etc.
It includes several advanced features like image processing algorithms, programmable C scripts, simultaneous editing of multiple images, and supports a wide variety of image formats.
Enhancements:
- This release introduces more consistent behaviour for the region operators and implements the use of the Escape key in all relevant operations.
- Several minor bugs were fixed.

Tux Paint has a simple, easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who helps guide children as they use the program.

Tux Paint provides a blank canvas and a variety of drawing tools to help your child be creative. Additional artwork ("stamps") can be downloaded and installed, providing a sticker-book functionality.

Tux Paint has been translated into nearly 70 languages, and a graphical configuration tool for parents and teachers is available which allows Tux Paint to be reconfigured to suit the special needs of children or the classroom environment.

GNU Paint (gpaint) is a simple, easy-to-use paint program for GNOME, the GNU Desktop. Gpaint starts as a port of xpaint and takes advantages of features unique to the GNOME environment. The project is licensed under the GNU GPL, version 2 or later.
Main features:
- Drawing tools--ovals, freehand, polygon, text, with fill or shallow for polygons and closed freehand.
- Cut and paste by selecting irregular regions or polygons.
- Print support using gnome-print (still flaky, will be improved upon next release)
- Modern, ease-to-use user interface with tool and color palettes
- Editing multiple image at the same time without runnng multiple instance of the image editor
- All image processing features present in xpaint
Enhancements:
- pt_BR and de translations were added.
- A rectangular selection tool was added.
- Small bugs were fixed.

Tux Paint Default Stamps project is a collection of hundreds of "rubber stamp" images (and associated descriptions and sound effects) for the childrens drawing program, "Tux Paint." Both PNG and SVG images are included.
Categories include animals, clothes, food, hobbies, household, medical, military, natural forces, people, plants, seasonal, space, sports, symbols, town, and vehicles.
Enhancements:
- SVG-based images (which are supported by Tux Paint 0.9.17) are now included.
- Stamps were added for food, animals, alphabets, signs, sports-related, musical instruments, money, and flowers.
- Translations were added for Czech, Latvian, and Thai.
- The English, Basque, French, Gujarati, Japanese, Russian, Spanish translations were updated.

Planner is a project management application for GNOME.
Enhancements:
- fix bug #353232 - patch to raise majic priority, fixing nautilus behavior when clicking on a planner file
- fix bug #368186 - patch to paint guide lines behind project start date rather than on top - contributed by Arthur Petitpierre
- added -Wno-return-type for compile with database enabled
- patch related to bug #353213 - added #ifdefs to allow compile with libgda 1 or 2, up to libgda-1.9.102
- Added Arabic - contributed by Djihed Afifi
- fix for bug 358415 crash in gantt view, contributed by Arthur Petitpierre and mdpoole trolius org.

JOpenChart provides a Java library and toolkit for generating and embedding charts into applications.
JOpenChart is a free Java Toolkit and library for embedding charts into different kinds of applications, no matter if they are server side, desktop or web applications. Commercial solutions are pretty expensive and at the time I started working on JOpenChart, there was no satisfying open source solution available.
Currently, the library provides all the functionality to draw different kinds of charts, like line, bar, pie and plot charts. Additionally, the class structure includes the necessary classes for the encapsulation of sets of data and the classes for all parts of a typical chart, like a coordinate system, coordinate axes, legends, title and chart renderers.
I put great effort into a good design, ie understandable, logical class structures, elegant interfaces, use of abstract classes etc. The library is easily extendable to provide your own functionalities. This is best illustrated by noting, that all the Renderer classes, which paint the charts, have about 150 - 200 lines of code.
Furthermore, a few more or less proof-of-concept classes are finished that demonstrate how to embed charts into web applications or Swing applications using Servlets or a JComponent respectively.
Main features:
- rendering of pie charts, line charts, bar charts and plot charts
- easy extensibility using a simple Renderer interface API
- linear and logarithmic y-axis
- different data model classes for implementing numerical data sets, data sets with non-numerical x-axis values, dynamic data sets for displaying incoming measured data, SQL database query results.
- polynomial and spline interpolation of data sets and linear regression of measured data
- binding data sets to one of two y-axes with different scales
- plotting of mathematical functions given as String parameters
- exporting diagrams as image files at least using PNG or JPEG compression and whatever encoding the Java Advanced Imaging Library supports
- Servlet Toolkit for the easy inclusion of charts into web applications
- Swing components to integrate charts in Swing applications
Enhancements:
- Now renders stacked bar charts and radar charts.
- Fully automatic, and good looking, margin adaption. No more cut-off labels.
- Add data models with differently sized data sets.
- Support for editable data models, enabling real time updated GUI charts, see GraphFrame.java as an example and the TestGUI ant target.
- Now allows manually setting of maximum and minimum x- and y-values, allowing for zooming.
- JDBCPlotter.java allows plotting of SQL query results.
- Various options for controlling rendering style, esp. of bar charts and coordinate systems, see FunctionPlotApplet.java and always TestChart.java.
- e.g Setting the axis units
- and displaying sums on top of bars etc.
- Choose preset shapes and arbitrary colors for your data sets and plot charts, easily implement your own shapes
- RowColorModel is not a singleton instance anymore
- I externalized the ChartDataModelConstraints class, you can provide your own implementation or extend the existing ones. See StackedChartDataModelConstraints as an example.
- Web archive (war file) now supports Tomcat 3.x and 4.x.

Jampal is a free mp3 Library and Jukebox program.
Main features:
- Jampal stores a music library of over 12000 songs with ease.
- You can sort, organize and categorize your tracks.
- It is very fast. You can sort 12000 tracks in under a second.
- You can update hundreds of track tags in one operation in a few seconds.
- Jampal libraries can be easily customized so that you can organize your music any way you want to.
- You can create your own frames within the ID3v2 standard to categorize your songs which ever way you want.
- The library can be imported into a spreadsheet or text editor program.
- Musicmatch Jukebox libraries can be converted to Jampal and vice versa.
- Most ID3v2 fields are supported, including all text fields and any number of attached pictures.
- Reference information from the ID3v2 standard is included to help understand the purpose and usage of each frame.
- Synthesized voice announcements of song titles (on Microsoft Windows only).
Enhancements:
Java versions 5 and 6
Minor changes (see below) have been made to ensure teh program runs well
with the latest versions of Java.
Cell Selection Display
With the Java version 5 and 6 default table behaviour, it is very
difficult to see which is the current selected cell. A very thin gray
border is painted on a blue background. To make it possible to see the
currently selected cell, Jampal now paints the selected cell in
"unselected" colors. This makes it easier to see where you are before
using "Edit Cell".
Automatic Cell Editing
Added the "Automatic Cell Editing" checkbox and menu item.
Bug with sorting and moving columns
If you moved some columns to new positions then sorted on columns, in
some cases the sort indicator was not removed when the sort no longer
applied.
Sound Distortion
Java versions 5 and 6 use a different default volume setting. The sound
from Jampal would be distorted unless you adjusted the "audio gain" in
the customization page. With this version the audio gain will default to
0 if you are running java 5 or 6.

Class::Container is a Perl module with Glues object frameworks together transparently.

SYNOPSIS

package Car;
use Class::Container;
@ISA = qw(Class::Container);

__PACKAGE__->valid_params
(
paint => {default => burgundy},
style => {default => coupe},
windshield => {isa => Glass},
radio => {isa => Audio::Device},
);

__PACKAGE__->contained_objects
(
windshield => Glass::Shatterproof,
wheel => { class => Vehicle::Wheel,
delayed => 1 },
radio => Audio::MP3,
);

sub new {
my $package = shift;

# windshield and radio objects are created automatically by
# SUPER::new()
my $self = $package->SUPER::new(@_);

$self->{right_wheel} = $self->create_delayed_object(wheel);
... do any more initialization here ...
return $self;
}

This class facilitates building frameworks of several classes that inter-operate. It was first designed and built for HTML::Mason, in which the Compiler, Lexer, Interpreter, Resolver, Component, Buffer, and several other objects must create each other transparently, passing the appropriate parameters to the right class, possibly substituting other subclasses for any of these objects.

The main features of Class::Container are:

Explicit declaration of containment relationships (aggregation, factory creation, etc.)
Declaration of constructor parameters accepted by each member in a class framework
Transparent passing of constructor parameters to the class that needs them
Ability to create one (automatic) or many (manual) contained objects automatically and transparently