Bubbles is a very basic actor-based layer hierarchy for drawable nodes. It allows you to organize a hierarchy of drawable "actors" (the nodes) into a "scene". The scene then acts as a sort of runloop, responsible for rendering actors in their respective positions.
cairo pango pangocairo freetype2 pangoft2 x11 xfixes
mkdir build && cmake .. && make
Each actor has a render and update method. These methods are called by the scene every turn of the runloop. render takes a Cairo context cairo_t that you draw into. The scene already takes care of raster groups and any parent transformations that need to be applied.
Check out the example for some basic usage.
I created this project because I found myself writing this same code over and over again for any project that needed to render a complex drawable hierarchy to a framebuffer (i.e., an X11 window or an LED matrix). Ideally I'd like to avoid using something like GTK or Qt since I am targeting platforms that may not have a high resolution bitmap display (like an LED matrix). Theoretically this could be divorced from the platform completely, as its only dependency is the Cairo Graphics Library.
I don't remember. I think it was the first name that came to my head. I do really like the 1982 Williams classic arcade game Bubbles