Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!lily.cis.ohio-state.edu!hall
From: hall@lily.cis.ohio-state.edu (john hall)
Newsgroups: comp.lang.c++
Subject: Re: C++ for X.11 (C+X?)
Keywords: X windowing
Message-ID: <47789@tut.cis.ohio-state.edu>
Date: 10 May 89 15:13:39 GMT
References: <10481@orstcs.CS.ORST.EDU>
Sender: news@tut.cis.ohio-state.edu
Reply-To: john hall <hall@cis.ohio-state.edu>
Organization: Ohio State University Computer and Information Science
Lines: 49

In article budd@mist.CS.ORST.EDU (Tim Budd) writes:
>Does there exist an available (say via ftp) set of C++ classes that
>simplify writing windowing applications using X11?  I've thought 
>of writing such a thing, but would be pleased to save 
>myself the trouble if others have done it already.
>--tim budd


The Interviews system is a complete toolkit in C++.  
It is public domain.
It is very complex, ( I just browsed) and I am not sure
how easy it would be to pick up.

I am unaware of any tutorials.

I have written my own system, and it is still under development.
The system has the following classes:
	Station: manages a display conection,
			 helps create a top level window,
			 provides a routing mechanism for window event
			 handling Can provide default handling.
	Cwindow: Basic window and window operations.  Draw lines,
			 segments, squares, rectangles,  print text
			 (centered, non-centered) etc.  Windows keep
			 track of direct decendents.
	GRC    : graphic context and manipulation thereof.
			 all values are cashed to allow query of current
			 gc status.
	menu &
	button : Allows pop up menus.  Selecting a menu item
			 can invoke a function if specified.
	object : under construction, manipulate window transformations,
			 etc.


You may take it as is with some working programs.
Documentation is fairly non-existent, but examples of the
use of the function calls can be found, except for
obvious extentions. 

Mistakes were made.  If I did it again I would create a
canvas class (a drawable) and derive pixmap and windows
from this.

Ther purpose of the system was 1) Learn X11, I will be
working on it for a living within 4 weeks and 2) Do
some more work in C++.

-jmh