pure-g2 — Pure Language and Library Documentation

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# pure-g2

Version 0.3, October 22, 2014

Albert Graef <aggraef@gmail.com>

This is a straight wrapper of the g2 graphics library, see http://g2.sf.net/.

License: BSD-style, see the COPYING file for details.

Get the latest source from https://bitbucket.org/purelang/pure-lang/downloads/pure-g2-0.3.tar.gz.

g2 is a simple, no-frills 2D graphics library, distributed under the LGPL. It’s easy to use, portable and supports PostScript, X11, PNG and Win32. Just the kind of thing that you need if you want to quickly knock out some basic graphics, and whipping out the almighty OpenGL or GTK/Cairo seems overkill.

To use this module, you need to have libg2 installed as a shared library (libg2.so, .dll etc.) in a place where the Pure interpreter can find it. The g2 source does not include rules to properly build and install a shared library on modern Linux systems, so we’ve included a little patch named g2-0.72-sharedlib.patch in the pure-g2 package which helps with this. (You still have to run ldconfig on Linux after installing g2. Also note that this patch has only been tested on Linux, for other systems you’ll probably have to edit the g2 Makefile yourself.)

Documentation still needs to be written, so for the time being please see g2.pure and have a look at the examples provided in the distribution.

Run `make install` to copy g2.pure to the Pure library directory. This tries to guess the prefix under which Pure is installed; if this doesn’t work, you’ll have to set the prefix variable in the Makefile accordingly.

The Makefile also provides the following targets:

- `make examples` compiles the examples to native executables.
- `make clean` deletes the native executables for the examples, as well as some graphics files which are produced by running g2_test.pure.
- `make generate` regenerates the g2.pure module. This requires that you have pure-gen installed, as well as the g2 header files (you can point pure-gen to the prefix under which g2 is installed with the g2prefix variable in the Makefile). This step shouldn’t normally be necessary, unless you find that the provided wrapper doesn’t work with your g2 version. The g2.pure in this release has been generated from g2 0.72.

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