Added initial class and example tex file

treyhunner · Jan 12, 2011 · e347785 · e347785
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diff --git a/invoice.cls b/invoice.cls
@@ -0,0 +1,110 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%  Copyright (c) 2011 Trey Hunner                                          %
+%                                                                          %
+%  Permission is hereby granted, free of charge, to any person obtaining   %
+%  a copy of this software and associated documentation files (the         %
+%  "Software"), to deal in the Software without restriction, including     %
+%  without limitation the rights to use, copy, modify, merge, publish,     %
+%  distribute, sublicense, and/or sell copies of the Software, and to      %
+%  permit persons to whom the Software is furnished to do so, subject to   %
+%  the following conditions:                                               %
+%                                                                          %
+%  The above copyright notice and this permission notice shall be          %
+%  included in all copies or substantial portions of the Software.         %
+%                                                                          %
+%  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,         %
+%  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF      %
+%  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND                   %
+%  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE  %
+%  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION  %
+%  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION   %
+%  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.         %
+%                                                                          %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\ProvidesClass{invoice}
+
+\LoadClass[12pt]{article}
+
+\usepackage[letterpaper,hmargin=0.79in,vmargin=0.79in]{geometry}
+\usepackage[parfill]{parskip} % Do not indent paragraphs
+\usepackage{fp} % Fixed-point arithmetic
+\usepackage{calc} % Counters for totaling hours and cost
+\usepackage{longtable}
+
+\pagestyle{empty} % No page numbers
+\linespread{1.5}
+
+\setlength{\doublerulesep}{\arrayrulewidth} % Double rules look like one thick one
+
+% Command for setting a default hourly rate
+\newcommand{\hourlyrate}[1]{\def \@hourlyrate {#1}}
+\hourlyrate{1}
+\newcommand{\feetype}[1]{
+    \textbf{#1}
+    \\
+}
+
+% Counters for totaling up hours and dollars
+\newcounter{hours} \newcounter{cost} \newcounter{subcost}
+\setcounter{hours}{0} \setcounter{cost}{0} \setcounter{subcost}{0}
+
+% Formats inputed number with 2 digits after the decimal place
+\newcommand*{\formatNumber}[1]{\FPround{\cost}{#1}{2}\cost} %
+
+% Returns the total of counter
+\newcommand*{\total}[1]{\FPdiv{\t}{\arabic{#1}}{1000}\formatNumber{\t}}
+
+% Create an invoice table
+\newenvironment{invoiceTable}{
+    % Create a new row from title, unit quantity, unit rate, and unit name
+    \newcommand*{\unitrow}[4]{%
+         \addtocounter{cost}{1000 * \real{##2} * \real{##3}}%
+         \addtocounter{subcost}{1000 * \real{##2} * \real{##3}}%
+         ##1 & \formatNumber{##2} ##4 & \$\formatNumber{##3} & \$\FPmul{\cost}{##2}{##3}\formatNumber{\cost}%
+         \\
+    }
+    % Create a new row from title and expense amount
+    \newcommand*{\feerow}[2]{%
+         \addtocounter{cost}{1000 * \real{##2}}%
+         \addtocounter{subcost}{1000 * \real{##2}}%
+         ##1 & & \$\formatNumber{##2} & \$\FPmul{\cost}{##2}{1}\formatNumber{\cost}%
+         \\
+    }
+
+    \newcommand{\subtotalNoStar}{
+        {\bf Subtotal} & {\bf \total{hours} hours} &  & {\bf \$\total{subcost}}
+        \setcounter{subcost}{0}
+        \\*[1.5ex]
+    }
+    \newcommand{\subtotalStar}{
+        {\bf Subtotal} & & & {\bf \$\total{subcost}}
+        \setcounter{subcost}{0}
+        \\*[1.5ex]
+    }
+    \newcommand{\subtotal}{
+         \hline
+         \@ifstar
+         \subtotalStar%
+         \subtotalNoStar%
+    }
+
+
+    % Create a new row from date and hours worked (use stored fee type and hourly rate)
+    \newcommand*{\hourrow}[2]{%
+        \addtocounter{hours}{1000 * \real{##2}}%
+        \unitrow{##1}{##2}{\@hourlyrate}{hours}%
+    }
+    \renewcommand{\tabcolsep}{0.8ex}
+    \setlength\LTleft{0pt}
+    \setlength\LTright{0pt}
+    \begin{longtable}{@{\extracolsep{\fill}\hspace{\tabcolsep}} l r r r }
+    \hline
+    {\bf Description of Services} & \multicolumn{1}{c}{\bf Quantity} & \multicolumn{1}{c}{\bf Unit Price} & \multicolumn{1}{c}{\bf Amount} \\*
+    \hline\hline
+    \endhead
+}{
+    \hline\hline\hline
+    {\bf Balance Due} & & & {\bf \$\total{cost}} \\
+    \end{longtable}
+}
diff --git a/invoice.tex b/invoice.tex
@@ -0,0 +1,34 @@
+\documentclass{invoice}
+
+\def \tab {\hspace*{3ex}}
+
+\begin{document}
+
+\hfil{\Huge\bf Joe Shmoe}\hfil
+\bigskip\break
+\hrule
+5555 Front St. \hfill 555~.~356~.~7936 \\
+Toledo, OH 43602 \hfill shmoe@example.com
+\\ \\
+{\bf Invoice To:} \\
+\tab John Doe \\
+\tab ACME Corporation \\
+
+{\bf Date:} \\
+\tab \today \\
+
+\hourlyrate{12.51}
+
+\begin{invoiceTable}
+\feetype{Consulting Services}
+\hourrow{January 3, 2011}{8}
+\hourrow{January 4, 2011}{6.5}
+\hourrow{January 5, 2011}{5.25}
+\hourrow{January 6, 2011}{9.75}
+\hourrow{January 7, 2011}{4}
+\subtotal
+\feetype{Hosting Expenses}
+\feerow{Ajax Hosting: January 8, 2011}{60}
+\end{invoiceTable}
+
+\end{document}