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如何将（图像）/工具提示的位置更改为页面最左角（或几乎最左角）？

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如何将（图像）/工具提示的位置更改为页面最左角（或几乎最左角）？

下列的AlexG 的回答针对这个问题如何在 /tooltip 的第二个参数中包含图像？我想问一下如何才能改变工具提示的位置，以便图像（或一般工具提示）始终位于其左上角，从页面的完整（或几乎完整）左上角开始。

换句话说，如何使工具提示的位置（或者更确切地说是其第二个参数的位置）相对于页面，而不是相对于其第一个参数的内容的位置？

答案1

此示例将内嵌图形文件的弹出框放置在页面左上角。tikzpicture带有选项“ rememberpicture, overlay”的环境用于绝对定位。

\documentclass[a5paper,12pt]{scrbook}

\usepackage{graphicx}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% tooltips with LaTeX
%
% optimized for Adobe Reader (visible on mouse-over)
%     usage: \tooltip[<link colour>]{<link text>}[<tip box colour>]{<tip text>}
%   non-draggable version:
%     usage: \tooltip*[<link colour>]{<link text>}[<tip box colour>]{<tip text>}
%
% for Evince (visible on click, not draggable)
%   usage: \tooltip**[<link colour>]{<link text>}[<tip box colour>]{<tip text>}
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{pdfbase}[2017/03/16]
\usepackage{xparse,ocgbase}
\usepackage{xcolor,calc}
\usepackage{tikz}
\usetikzlibrary{calc}

\ExplSyntaxOn
\let\tpPdfLink\pbs_pdflink:nn
\let\tpPdfAnnot\pbs_pdfannot:nnnn\let\tpPdfLastAnn\pbs_pdflastann:
\let\tpAppendToFields\pbs_appendtofields:n
\def\tpPdfXform{\pbs_pdfxform:nnnnn{1}{1}{}{}}
\let\tpPdfLastXform\pbs_pdflastxform:
\ExplSyntaxOff

\makeatletter
\NewDocumentCommand{\tooltip}{ssO{blue}mO{yellow!20}m}{{%
  \leavevmode%
  \IfBooleanT{#1}{%
    \ocgbase@new@ocg{tipOCG.\thetcnt}{%
      /Print<</PrintState/OFF>>/Export<</ExportState/OFF>>%
    }{false}%
    \xdef\tpTipOcg{\ocgbase@last@ocg}%
  }%
  \tpPdfLink{%
    \IfBooleanTF{#2}{%
      /Subtype/Link/Border [0 0 0]/A <</S/SetOCGState/State [/Toggle \tpTipOcg]>>
    }{%
      /Subtype/Screen%
      \IfBooleanTF{#1}{%
        /AA<<%
          /E<</S/SetOCGState/State [/ON \tpTipOcg]>>%
          /X<</S/SetOCGState/State [/OFF \tpTipOcg]>>%
        >>%
      }{
        /AA<<%
          /E<</S/JavaScript/JS(%
            var fd=this.getField('tip.\thetcnt');%
            \IfBooleanF{#1}{%
              if(typeof(click\thetcnt)=='undefined'){%
                var click\thetcnt=false;%
                var fdor\thetcnt=fd.rect;var dragging\thetcnt=false;%
              }%
            }%
            if(fd.display==display.hidden){%
              fd.delay=true;fd.display=display.visible;fd.delay=false;%
            }%
           this.dirty=false;%
          )>>%
          /X<</S/JavaScript/JS(%
            if(!click\thetcnt&&!dragging\thetcnt){fd.display=display.hidden;}%
            if(!dragging\thetcnt){click\thetcnt=false;}%
            this.dirty=false;%
          )>>%
          /U<</S/JavaScript/JS(click\thetcnt=true;this.dirty=false;)>>%
          /PC<</S/JavaScript/JS (%
            var fd=this.getField('tip.\thetcnt');%
            try{fd.rect=fdor\thetcnt;}catch(e){}%
            fd.display=display.hidden;this.dirty=false;%
          )>>%
          /PO<</S/JavaScript/JS(this.dirty=false;)>>%
        >>%
      }
    }%
  }{{\color{#3}#4}}%
  \sbox\tiptext{\fcolorbox{black}{#5}{#6}}%
  \edef\twd{\the\wd\tiptext}%
  \edef\tht{\the\ht\tiptext}%
  \edef\tdp{\the\dp\tiptext}%
  \tpPdfXform{\tiptext}%
  %tip box placed at top left page corner
  \begin{tikzpicture}[remember picture,overlay]
    \node [inner sep=0pt, anchor=base] at (current page.north west) {%
      \raisebox{-\tht}[0pt][0pt]{%
        \tpPdfAnnot{\twd}{\tht}{\tdp}{%
          /Subtype/Widget/FT/Btn/T (tip.\thetcnt)%
          /AP<</N \tpPdfLastXform>>%
          /MK<</TP 1/I \tpPdfLastXform/IF<</S/A/FB true/A [0.0 0.0]>>>>%
          \IfBooleanTF{#1}{%
            /Ff 65537/OC \tpTipOcg%
          }{%
            /Ff 65536/F 3%
            /AA <<%
              /U <<%
                /S/JavaScript/JS(%
                  var fd=event.target;%
                  var mX=this.mouseX;var mY=this.mouseY;%
                  var drag=function(){%
                    var nX=this.mouseX;var nY=this.mouseY;%
                    var dX=nX-mX;var dY=nY-mY;%
                    var fdr=fd.rect;%
                    fdr[0]+=dX;fdr[1]+=dY;fdr[2]+=dX;fdr[3]+=dY;%
                    fd.rect=fdr;mX=nX;mY=nY;%
                  };%
                  if(!dragging\thetcnt){%
                    dragging\thetcnt=true;Int=app.setInterval("drag()",1);%
                  }%
                  else{app.clearInterval(Int);dragging\thetcnt=false;}%
                  this.dirty=false;%
                )%
              >>%
            >>%
          }%
        }%
        \tpAppendToFields{\tpPdfLastAnn}%
      }%
    };
  \end{tikzpicture}
  \stepcounter{tcnt}%
}}
\makeatother
\newsavebox\tiptext\newcounter{tcnt}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{document}\Huge
\begin{enumerate}
  \item This is a \tooltip{tooltip}{\includegraphics[scale=0.1]{example-image}} with a graphic popping up on mouse-over in Acrobat Reader. The tooltip can be dragged around with the mouse.
  \item This is a \tooltip**{tooltip}{\includegraphics[scale=0.1]{example-image-a}} with a graphic popping up on mouse-click. Besides Acrobat Reader, this works also in Evince.
\end{enumerate}    
\end{document}

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