An additional widget for picking a color was added. Color picker use
the new draw call command multicolor rectangle which is not supported
everywhere. All demos using the optional vertex buffer output can use
the color picker without problems. Other platforms need to support
a drawing function or do not it.
First version supporting the new record and play feature which allows
to `record` a number of API calls and lets you replay them at a later
point of time. This could be the basis for creating an Editor and
other more advanced features. While I tested the functionality there
still could be a number of bugs and I would recommend waiting
until all bugs are removed before using it.
The conversion function from rgb color to hsv color was bugged and
provided wrong values. It is now fixed and hopefully is now correct.
In addition a number of utility functions have been added to make
conversion between user provided color format and zahnrads own
format easier.
While dividing previously spared me from a lot of work and problems
it is probably best to have everything working for every or as many
platforms as possible. Some platforms fail to provide good ways
to support everything (e.g.:X11 does not have pixmap clipping with
different width/height or alpha-blending) but all OpenGL demos
outside allegro (needs some additional work) should be able to run.
