Added wxTreeLayout for wxWindows 2.0

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@232 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxtree/docs/wxtree.tex

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+\documentstyle[a4,makeidx,verbatim,texhelp,fancyhea,mysober,mytitle]{report}%
+\newcommand{\indexit}[1]{#1\index{#1}}%
+\newcommand{\pipe}[0]{$\|$\ }%
+\definecolour{black}{0}{0}{0}%
+\definecolour{cyan}{0}{255}{255}%
+\definecolour{green}{0}{255}{0}%
+\definecolour{magenta}{255}{0}{255}%
+\definecolour{red}{255}{0}{0}%
+\definecolour{blue}{0}{0}{200}%
+\definecolour{yellow}{255}{255}{0}%
+\definecolour{white}{255}{255}{255}%
+\input psbox.tex
+\parskip=10pt%
+\title{Manual for wxTreeLayout 2.0: a tree layout library for wxWindows}
+\author{Julian Smart\\Anthemion Software}
+\date{July 1998}%
+\makeindex%
+\begin{document}%
+\maketitle
+
+\pagestyle{fancyplain}
+\bibliographystyle{plain}
+\pagenumbering{roman}
+\setheader{{\it CONTENTS}}{}{}{}{}{{\it CONTENTS}}
+\setfooter{\thepage}{}{}{}{}{\thepage}
+\tableofcontents%
+
+\chapter{Introduction}
+\pagenumbering{arabic}%
+\setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}%
+\setfooter{\thepage}{}{}{}{}{\thepage}
+
+This manual describes a tree-drawing class library for wxWindows. It
+provides layout of simple trees with one root node, drawn left-to-right,
+with user-defined spacing between nodes.
+
+wxTreeLayout is an abstract class that must be subclassed. The programmer
+defines various member functions which will access whatever data structures
+are appropriate for the application, and wxTreeLayout uses these when laying
+out the tree.
+
+wxStoredTree is a class derived from wxTreeLayout that may be used directly to
+draw trees on a canvas. It supplies storage for the nodes, and draws
+to a device context.
+
+\helponly{Below is the example tree generated by the program test.cc.
+
+\begin{figure}
+$$\image{11cm;0cm}{treetst.ps}$$
+\caption{Example tree}\label{exampletree}
+\end{figure}
+}
+
+\chapter{Implementation}
+\setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}%
+\setfooter{\thepage}{}{}{}{}{\thepage}
+
+The algorithm is due to Gabriel Robins \cite{robins87}, a linear-time
+algorithm originally implemented in LISP for AI applications.
+
+The original algorithm has been modified so that both X and Y planes
+are calculated simultaneously, increasing efficiency slightly. The basic
+code is only a page or so long.
+
+\input classes.tex
+%
+\bibliography{tree}
+
+\addcontentsline{toc}{chapter}{Index}
+\setheader{{\it INDEX}}{}{}{}{}{{\it INDEX}}%
+\setfooter{\thepage}{}{}{}{}{\thepage}
+\printindex
+\end{document}