Woopsi is a BSD-licenced windowing system for the Nintendo DS, written in C++. The aim of the project is to create a simple windowing system that other programmers can use for their applications, which should decrease the tedious amount of GUI code that people have to write.
The system itself is loosely based on the Commodore Amiga’s “Intuition” windowing system. Everything in the system is treated as a “gadget” (in the same way that Windows treats everything as a sub-class of a window), everything takes place within a “screen” environment, and the look-and-feel of the system intentionally resembles the old Amiga system. There are several reasons for this:
  * It gives me a template to work from, reducing the amount of work I need to do;
  * Intuition was designed for low-power, low-resolution hardware;
  * It seemed like a good idea at the time.
The windowing system is *not* intended to be a complete desktop environment. It is *not* going to be a DS version of GNOME, KDE or Windows Explorer. It will simply provide a system for rapidly building window and gadget-based interfaces. Ant512.
CODEWoopsi 0.25 Features
 Â* Multiple screen support
 Â* Draggable windows
 Â* Borderless, non-draggable windows
 Â* Clickable buttons
 Â* Smooth scrolling text boxes (using code from TextViewerDS)
 Â* Smooth scrolling “superbitmap” gadget to display large bitmaps in small windows
 Â* Single-line text boxes with horizontal and vertical alignment options
 Â* Event system
 Â* Depth sorting
 Â* Screen depth gadget
 Â* Active/inactive windows
 Â* Per-window event detection (only the top window under the stylus receives the event, not any underlying windows with gadgets at the same co-ordinates)
 Â* Optimised line/filled rectangle drawing
 Â* Intelligent window/gadget erasing based on invalidated regions
 Â* Intelligent window/gadget drawing based on visible regions
 Â* Object-orientated design for easy integration into other C++ software
 Â* Simple API for rapid GUI creation
 Â* Simplistic “multitasking” - each window runs simultaneously
 Â* Uses 16-bit display mode
 Â* Uses the old AmigaOS 3.0 “Topaz” font
 Â* Support for any standard PALib-style bitmap font (16-bit only)
