Serge Vanschoenwinkel

Cairo is a 2D graphics library with support for multiple output devices. It is designed to produce consistent output on all output media while taking advantage of display hardware acceleration when available. The Cairo API provides operations similar to the drawing operators of PostScript and PDF. Operations in Cairo including stroking and filling cubic Bézier splines, transforming and compositing translucent images, and antialiased text rendering. All drawing operations can be transformed by any affine transformation (scale, rotation, shear, etc.).

Illustrated by a poker game application, this presentation will show you how to do nice drawings with Cairo, still programming with your preferred language: Ada!

GTK+ is an open-source library that allows to quickly and easily build a graphical user interface, using standard widgets like buttons, combo boxes, text and tree views, scroll bars, etc. Even though GTK+ is written in C, it can be used from an Ada application thanks to GtkAda, an object-oriented Ada/C binding.

Illustrated by a poker game application, this presentation will explain the essential concepts of GtkAda. It will show how to create the most common widgets and how to interact with the user.