Cim5-Architecture
From CenterIM
This page describes basic CenterIM 5 architecture.
Contents |
Architecture
CenterIM 5 is an object oriented program written in C++. It consists of several components that are shown at the picture below. Grey parts are external libraries, white parts represent components that are developed in this project. Libsigc++ provides a typesafe callback system, libtermkey is used as low level input processing library, ncurses allows us to draw widgets on the screen, libpurple provides a communication backend, GLib is a general purpose library.
Notes
Here are some useful notes:
- Widgets cannot be displayed on the screen by themselves. The *only* widgets which can be drawn on the screen are Windows and derived classes. The idea behind this lies in the details of the curses implementation (see man newpad).
- Cim5 works internally with UTF-8 exclusively. Input is converted from the current locale to UTF-8. This stems from the fact that glib (used by libpurple) expects UTF-8 encoded strings.
CppConsUi
CppConsUI is a TUI toolkit. The goal of this library is to provide easy to use widgets to build user interface.
TODO classes description
CenterIM
Top layer of CenterIM 5 is a relatively simple glue between CppConsUI and libpurple. Libpurple is a C based instant messaging API. As such Cim5 represents core libpurple interfaces as objects. For example libpurple has a conversation API. In Cim5 this is represented by the Conversation and Conversations classes.
TODO implementation files description
