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重新启动 Rowcolors

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重新启动 Rowcolors

这应该是一个简单的问题。我正在使用\rowcolors{1}{}{lightgray}交替颜色来改变表格中的行。

有没有办法在某个点之后“重新启动”重新着色，以便我确保无论上面有多少行，我都可以保证交替行为从给定的预设行开始恢复？

梅威瑟：

\documentclass[11pt]{article}
\usepackage{threeparttable}             % tables with footnotes, capions all the same width
\usepackage{dcolumn}                    % decimal-aligned tabular math columns
\usepackage{multirow}                   % Allow table cells to span multiple rows
\usepackage{booktabs}                   % Formatting options for publication-quality tables
\usepackage{ltxtable}                   % long tabularx
\usepackage{colortbl}
\usepackage[table]{xcolor}
\definecolor{lightgray}{gray}{0.9}
\begin{document}
\rowcolors{1}{}{lightgray}
\LTXtable{\textwidth}{testtable}
\end{document}

测试表.tex：

\begin{longtable}{p{3cm} X}
    \toprule
    Heading row & This should be lightgrey \\
    \hline % I use \hline because \midrule counts as a row and screws with the colors
    A data row & This row should be uncolored \\
    A data row & This row should be lightgrey \\
    A data row & This row sometimes doesn't exist. It would be uncolored if it did \\
    \hline
    A new heading row & This should be lightgrey regardless of whether the previous row exists.
\end{longtable}

答案1

软件包xcolor通过计数寄存器记住彩色行的状态\rownum。可以通过以下方式将其重置为初始值：

\global\rownum=0\relax

更改当前行中的计数寄存器已经太迟了。因此需要在前一行的单元格中执行此操作。

以下示例添加了一个 LaTeX 接口，以\rownum使宏\setcounter、\addtocounter和\therownum工作。然后，计数器在标记为 的行之前的行中重置restart：

\documentclass{article}
\usepackage[table]{xcolor}
\usepackage{array}

% LaTeX counter interface for \rownum
% ---
\makeatletter
\@ifundefined{c@rownum}{%
  \let\c@rownum\rownum
}{}
\@ifundefined{therownum}{%
  \def\therownum{\@arabic\rownum}%
}{}
\makeatother

\begin{document}
\rowcolors{1}{yellow}{red}
\begin{tabular}{>{\the\rownum}ll}
\hline
&\\
&\\
&\\
&\setcounter{rownum}{0}\\
\hline
\hline
& restart\\
&\\
&\setcounter{rownum}{0}\\
\hline
\hline
& restart\\
&\setcounter{rownum}{0}\\
\hline
\hline
& restart\\
&\\
&\\
\hline
\end{tabular}

\end{document}

结果

评论：

  • \rowcolors{1}{yellow}{red}意思是，从第一行开始，改变行颜色。第一种颜色用于奇数行，第二种颜色用于偶数行。

包裹longtable

更“有趣”的是包longtable。它需要LTchunksize行来测量表格单元格的宽度。因此可以处理一行一些次。这会影响\rownum。前面的示例使用\usepackage{longtable}和longtable代替tabular：

结果

或者使用\setcounter{LTchunksize}{1}（和几次 LaTeX 运行）：

结果 LTchunksize=1

已经longtable给行编号带来了麻烦，因此使用 不会变得更好ltxtable，因为它基于longtable。在下面的示例中，第一行获得编号 2，因此 的第一个参数\rowcolors将无法可靠地工作，除非将其设置为 1。

如果在前一行进行“重置”，则在某种程度上“重置”是有效的。但是，根据规定，第一行应该是白色而不是浅灰色，\rowcolors 并且行编号无法正常工作。

\RequirePackage{filecontents}
\begin{filecontents}{testtable1.tex}
\begin{longtable}{>{\the\rownum.}r p{3.5cm} X}
    \toprule
    & Heading row & This should be lightgrey \\
    \hline
    & A data row & This row should be uncolored \\
    & A data row & This row should be lightgrey \\
    & A data row & This row sometimes doesn't exist.
                   It would be uncolored if it did
    \restartrowcolors\\
    \midrule
    & A new heading row & This should be lightgrey regardless
      of whether the previous row exists.\\
    & A data row & This should be uncolored \\
    & A data row & This should be lightgrey
\end{longtable}
\end{filecontents}

\begin{filecontents}{testtable2.tex}
\begin{longtable}{>{\the\rownum.}r p{3.5cm} X >{\the\rownum}l}
    \toprule
    & Heading row & This should be lightgrey \\
    \hline
    & A data row & This row should be uncolored \\
    & A data row & This row should be lightgrey 
    \restartrowcolors\\
    \midrule
    & A new heading row & This should be lightgrey regardless
      of whether the previous row exists.\\
    & A data row & This should be uncolored \\
    & A data row & This should be lightgrey
\end{longtable}
\end{filecontents}

\documentclass[11pt]{article}
\usepackage{booktabs}                   % Formatting options for publication-quality tables
\usepackage{ltxtable}                   % long tabularx
\usepackage{colortbl}
\usepackage[table]{xcolor}
\definecolor{lightgray}{gray}{0.9}

\newcommand*{\restartrowcolors}{%
  \ifhmode\unskip\fi
  \vadjust{%
    \global\rownum=0 %
  }%
}

\begin{document}
\rowcolors{1}{}{lightgray}
\LTXtable{\textwidth}{testtable1}
\LTXtable{\textwidth}{testtable2}
\end{document}

结果

答案2

无论之前的行颜色定义如何，你都可以简单地rowcolor{lightgray}在想要着色的行之前说出来。

如果前一行不存在：

\documentclass[11pt]{article}
\usepackage{threeparttable}             % tables with footnotes, capions all the same width
\usepackage{dcolumn}                    % decimal-aligned tabular math columns
\usepackage{multirow}                   % Allow table cells to span multiple rows
\usepackage{booktabs}                   % Formatting options for publication-quality tables
\usepackage{ltxtable}                   % long tabularx
\usepackage{colortbl}
\usepackage[table]{xcolor}
\definecolor{lightgray}{gray}{0.9}
\usepackage{filecontents}
\begin{filecontents*}{testtable.tex}
    \rowcolors{1}{white}{lightgray}
  \begin{longtable}{p{3cm} X}
    \toprule
    Heading row & This should be lightgrey \\
    \hline % I use \hline because \midrule counts as a row and screws with the colors
    A data row & This row should be uncolored \\
    A data row & This row should be lightgrey \\
%    A data row & This row sometimes doesn't exist. It would be uncolored if it did \\
%    \hline
    \rowcolor{lightgray}
        \rowcolors{5}{white}{lightgray}
    A new heading row & This should be lightgrey regardless of whether the previous row exists.\\
    A data row & This row should be uncolored \\
    A data row & This row should be lightgrey \\
    A data row & This row sometimes doesn't exist. It would be uncolored if it did \\
\end{longtable}
\end{filecontents*}
\begin{document}
\rowcolors{1}{}{lightgray}
\LTXtable{\textwidth}{testtable}
\end{document}

在此处输入图片描述

从第四行开始颜色是交替的。

如果前一行存在：

\documentclass[11pt]{article}
\usepackage{threeparttable}             % tables with footnotes, capions all the same width
\usepackage{dcolumn}                    % decimal-aligned tabular math columns
\usepackage{multirow}                   % Allow table cells to span multiple rows
\usepackage{booktabs}                   % Formatting options for publication-quality tables
\usepackage{ltxtable}                   % long tabularx
\usepackage{colortbl}
\usepackage[table]{xcolor}
\definecolor{lightgray}{gray}{0.9}
\usepackage{filecontents}
\begin{filecontents*}{testtable.tex}
    \rowcolors{1}{white}{lightgray}
  \begin{longtable}{p{3cm} X}
    \toprule
    Heading row & This should be lightgrey \\
    \hline % I use \hline because \midrule counts as a row and screws with the colors
    A data row & This row should be uncolored \\
    A data row & This row should be lightgrey \\
    A data row & This row sometimes doesn't exist. It would be uncolored if it did \\
    \hline
    %\rowcolor{lightgray}
    %\rowcolors{4}{white}{lightgray}     
    A new heading row & This should be lightgrey regardless of whether the previous row exists.\\
    A data row & This row should be uncolored \\
    A data row & This row should be lightgrey \\
    A data row & This row sometimes doesn't exist. It would be uncolored if it did \\
\end{longtable}
\end{filecontents*}
\begin{document}
\rowcolors{1}{}{lightgray}
\LTXtable{\textwidth}{testtable}
\end{document}

在此处输入图片描述

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