重新格式化目录树样式

Question

我有一个目录树，几乎看起来像这样：

上面的图片是我想要实现的。这是我在帮助下稍作修改后得到的制作（简单）目录树

我知道我应该再努力一点，但在制作图表方面，尤其是与复杂树相关的图表方面，我并不是专业人士。在这里，我正在寻找一种方法来使除主节点（或根节点）之外的每个节点的背景颜色变为灰色。主节点应该如图所示具有框。另外，我在寻找一种方法来任意修改节点，使其具有像主节点一样的框，如图中间和底部所示。另外，左边的小框应该有一个减号（展开形式）。顶部的标题是可选的，图像末尾的行将被忽略。只要方便，使用哪些包并不重要。

更新

fill我设法通过使用、inner sep和s sep以及编辑节点来模拟扩展形式来稍微改进我的图片edge path。现在我需要一点帮助来使边缘路径类似于第一幅图像。

这是我的代码：

\documentclass[border=5pt]{standalone}
\usepackage{forest}
\usepackage{xcolor}

\definecolor{mygray}{RGB}{224,224,224}
\begin{document}

\begin{forest}
  for tree={
    font=\sffamily,
     if level=0
      {fill=white,draw=black}
      {fill=mygray,draw=black},
    grow'=0,
    child anchor=west,
    parent anchor=south,
    anchor=west,
    calign=first,
    inner xsep= 15pt,
    s sep=15pt,
    edge path={
      \noexpand\path [draw, \forestoption{edge}]
      (!u.south west) +(7.5pt,0) |- node[fill=white,draw,inner sep=1pt,align=center] {$-$} (.child anchor)\forestoption{edge label};
    },
    before typesetting nodes={
      if n=1
        {insert before={[,phantom]}}
        {}
    },
    fit=band,
    before computing xy={l=35pt},
  }
[R1SC4000R - Processor for Service
  [SETUIXNAM]
  [{QC2UTIL1,R1SC3000ER,DOCERROR}]
  [STEPCONDITION
    [LOKUPUIX
        [R1SB8000R - Handle User Index\quad UIX,fill=white]
    ]
    [{GETFROMUIX,GETFROMUIX}]
    [{GETFROMUIX,GETFROMUIX}]
  ]
  [ONESUB
    [{QC2UTIL1,R1SC3000ER,DOCERROR}]
    [UIXPERM2TEMP
     [{GETFROMUIX,GETFROMUIX}]
     [CLRUIX
        [R1SB8000R - Handle User Index\quad UIX,fill=white]
     ]
    ]
  ]
]
\end{forest}

\end{document

Answer 1

如果我理解正确的话，这里有两个问题。首先，-只有当子文件夹有子项时，节点才应出现。其次，其他子项的边不应绘制在节点上-。

对于第一个问题，我们可以使用if n children条件。如果没有子节点，我们就设置一条简单的边路径，不带节点；否则，设置一个带边框的边路径-。

第二个问题可以通过改变绘制边缘的顺序来解决；必须从最后一个子节点开始绘制子节点的边缘。这可以通过设置draw tree edges processing ordernodewalk 样式（参见手册第 3.4.3 节）到tree reversed（第 3.8.3 节）来解决。

以下是完整的更新代码：

\documentclass[border=5pt]{standalone}
\usepackage{forest}
\usepackage{xcolor}

\definecolor{mygray}{RGB}{224,224,224}
\begin{document}

\begin{forest}
  draw tree edges processing order/.nodewalk style=tree reversed,
  for tree={
    font=\sffamily,
     if level=0
      {fill=white,draw=black}
      {fill=mygray,draw=black},
    grow'=0,
    child anchor=west,
    parent anchor=south,
    anchor=west,
    calign=first,
    inner xsep= 15pt,
    s sep=15pt,
    if n children=0{
      edge path={
        \noexpand\path [draw, \forestoption{edge}]
        (!u.south west) +(7.5pt,0) |- (.child anchor)\forestoption{edge label};
      },
    }{
      edge path={
        \noexpand\path [draw, \forestoption{edge}]
        (!u.south west) +(7.5pt,0) |- node[fill=white,draw,inner sep=1pt,align=center] {$-$} (.child anchor)\forestoption{edge label};
      },
    },
    before typesetting nodes={
      if n=1
        {insert before={[,phantom]}}
        {}
    },
    fit=band,
    before computing xy={l=35pt},
  }
[R1SC4000R - Processor for Service
  [SETUIXNAM]
  [{QC2UTIL1,R1SC3000ER,DOCERROR}]
  [STEPCONDITION
    [LOKUPUIX
        [R1SB8000R - Handle User Index\quad UIX,fill=white]
    ]
    [{GETFROMUIX,GETFROMUIX}]
    [{GETFROMUIX,GETFROMUIX}]
  ]
  [ONESUB
    [{QC2UTIL1,R1SC3000ER,DOCERROR}]
    [UIXPERM2TEMP
     [{GETFROMUIX,GETFROMUIX}]
     [CLRUIX
        [R1SB8000R - Handle User Index\quad UIX,fill=white]
     ]
    ]
  ]
]
\end{forest}

\end{document}

-更新：在根的左边也画出来

我认为，最好手动执行此操作：将根稍微向右移动一点，然后将放在-它的左边。问题在于根的子节点连接到根节点；解决方案：概括边缘路径分配以支持任意移位，并将其分别应用于根的子节点。

\documentclass[border=5pt]{standalone}
\usepackage{forest}
\usepackage{xcolor}

\definecolor{mygray}{RGB}{224,224,224}
\begin{document}

\begin{forest}
  draw tree edges processing order/.nodewalk style=tree reversed,
  my edge path/.style={
    edge path={
      \noexpand\path [draw, \forestoption{edge}]
      (!u.south west) #1 |- (.child anchor)\forestoption{edge label};
    },
  },
  my edge path with node/.style={
    edge path={
      \noexpand\path [draw, \forestoption{edge}]
      (!u.south west) #1 |- node[fill=white,draw,inner sep=1pt,align=center] {$-$} (.child anchor)\forestoption{edge label};
    },
  },
  for tree={
    font=\sffamily,
     if level=0
      {fill=white,draw=black}
      {fill=mygray,draw=black},
    grow'=0,
    child anchor=west,
    parent anchor=south,
    anchor=west,
    calign=first,
    inner xsep= 15pt,
    s sep=15pt,
    if n children=0{
      my edge path={+(7.5pt,0)},
    }{
      my edge path with node={+(7.5pt,0)},
    },
    before typesetting nodes={
      if n=1
        {insert before={[,phantom]}}
        {}
    },
    fit=band,
    before computing xy={l=35pt},
  },
  % The root will be shifted to the right, so the children need to connect to a
  % point a bit more to the left of it.
  for children={
    if n children=0{
      % We need 2.5pt (determined by visual inspection) to compensate for the
      % height difference between the root and its `-` box.
      my edge path with node={+(-15pt,+2.5pt)}
    }{
      my edge path={+(-15pt,+2.5pt)}
    }
  },
  % Shift the root to the right.
  before drawing tree={
    x+=7.5pt+15pt,
  },
  % Draw the `-` node on the left side of the root.
  tikz+={
    \node (root-) at ([xshift=-15pt].west) [fill=white,draw,inner sep=1pt] {$-$};
    \draw (root-) -- (!r.west);
  },
  [R1SC4000R - Processor for Service
    [SETUIXNAM]
    [{QC2UTIL1,R1SC3000ER,DOCERROR}]
    [STEPCONDITION
      [LOKUPUIX
        [R1SB8000R - Handle User Index\quad UIX,fill=white]
      ]
      [{GETFROMUIX,GETFROMUIX}]
      [{GETFROMUIX,GETFROMUIX}]
    ]
    [ONESUB
      [{QC2UTIL1,R1SC3000ER,DOCERROR}]
      [UIXPERM2TEMP
        [{GETFROMUIX,GETFROMUIX}]
        [CLRUIX
          [R1SB8000R - Handle User Index\quad UIX,fill=white]
        ]
      ]
    ]
  ]
\end{forest}

\end{document}