Esta questão é uma continuação da anteriorperguntano qual foi modificado para incluir a cor de fundo junto com linebackgrounda cor em algumas linhas de código. MWE é fornecido abaixo:
\documentclass{beamer}
\usepackage{listings, pgffor}
\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \btIfInRange{number}{range list}{TRUE}{FALSE}
%
% Test if int number <number> is element of a (comma separated) list of ranges
% (such as: {1,3-5,7,10-12,14}) and processes <TRUE> or <FALSE> respectively
\newcount\bt@rangea
\newcount\bt@rangeb
\newcommand\btIfInRange[2]{%
\global\let\bt@inrange\@secondoftwo%
\edef\bt@rangelist{#2}%
\foreach \range in \bt@rangelist {%
\afterassignment\bt@getrangeb%
\bt@rangea=0\range\relax%
\pgfmathtruncatemacro\result{ ( #1 >= \bt@rangea) && (#1 <= \bt@rangeb) }%
\ifnum\result=1\relax%
\breakforeach%
\global\let\bt@inrange\@firstoftwo%
\fi%
}%
\bt@inrange%
}%
\newcommand\bt@getrangeb{%
\@ifnextchar\relax%
{\bt@rangeb=\bt@rangea}%
{\@getrangeb}%
}%
\def\@getrangeb-#1\relax{%
\ifx\relax#1\relax%
\bt@rangeb=100000% \maxdimen is too large for pgfmath
\else%
\bt@rangeb=#1\relax%
\fi%
}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \btLstHL<overlay spec>{range list}
%
\newcommand<>{\btLstHL}[1]{%
\only#2{\btIfInRange{\value{lstnumber}}{#1}{\color{blue!30}}{}}%
}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \btInputEmph<overlay spec>[listing options]{range list}{file name}
%
\newcommand<>{\btLstInputEmph}[3][\empty]{%
\only#4{%
\lstset{linebackgroundcolor=\btLstHL{#2}}%
\lstinputlisting{#3}%
}% \only
}%
\makeatletter
\let\old@lstKV@SwitchCases\lstKV@SwitchCases
\def\lstKV@SwitchCases#1#2#3{}
\makeatother
\usepackage{lstlinebgrd}
\makeatletter
\let\lstKV@SwitchCases\old@lstKV@SwitchCases
\lst@Key{numbers}{none}{%
\def\lst@PlaceNumber{\lst@linebgrd}%
\lstKV@SwitchCases{#1}%
{none:\\%
left:\def\lst@PlaceNumber{\llap{\normalfont
\lst@numberstyle{\thelstnumber}\kern\lst@numbersep} \lst@linebgrd}\\%
right:\def\lst@PlaceNumber{\rlap{\normalfont
\kern\linewidth \kern\lst@numbersep
\lst@numberstyle{\thelstnumber}}\lst@linebgrd}%
}{\PackageError{Listings}{Numbers #1 unknown}\@ehc}}
\makeatother
\begin{document}
\begin{frame}[fragile]{Problem}
Test programme:
\begin{lstlisting}[%
language=C,
gobble=4,
% linebackgroundcolor={%
% \btLstHL<1>{1,3,5-6}%
% \btLstHL<2>{4}%
% },
backgroundcolor=\color{gray!10}
]
#include <stdio.h>
int main(void) {%
printf("Hello World!");
return 0;
}
\end{lstlisting}
\end{frame}
\end{document}
Este MWE [exceto chave backgroundcolor] foi fornecido por@moewe. Agora, quando uso as duas teclas: linebackgroundcolore backgroundcolor, a opção de cor backgroundcolorpara de funcionar. Tentei entrar em contato com o autor do pacote, mas não consegui. Qualquer sugestão de solução alternativa, por favor.
Responder1
A cor de fundo funciona bem em princípio, o problema é que a macro de realce você usa para preencher não apenas as linhas para realçar, ela preenche todas as outras linhas com branco e assim cobre o fundo cinza.
Como solução alternativa, você pode ajustar \btLstHLcomo no exemplo a seguir:
\documentclass{beamer}
\usepackage{listings, pgffor}
\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \btIfInRange{number}{range list}{TRUE}{FALSE}
%
% Test if int number <number> is element of a (comma separated) list of ranges
% (such as: {1,3-5,7,10-12,14}) and processes <TRUE> or <FALSE> respectively
\newcount\bt@rangea
\newcount\bt@rangeb
\newcommand\btIfInRange[2]{%
\global\let\bt@inrange\@secondoftwo%
\edef\bt@rangelist{#2}%
\foreach \range in \bt@rangelist {%
\afterassignment\bt@getrangeb%
\bt@rangea=0\range\relax%
\pgfmathtruncatemacro\result{ ( #1 >= \bt@rangea) && (#1 <= \bt@rangeb) }%
\ifnum\result=1\relax%
\breakforeach%
\global\let\bt@inrange\@firstoftwo%
\fi%
}%
\bt@inrange%
}%
\newcommand\bt@getrangeb{%
\@ifnextchar\relax%
{\bt@rangeb=\bt@rangea}%
{\@getrangeb}%
}%
\def\@getrangeb-#1\relax{%
\ifx\relax#1\relax%
\bt@rangeb=100000% \maxdimen is too large for pgfmath
\else%
\bt@rangeb=#1\relax%
\fi%
}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \btLstHL<overlay spec>{range list}
%
\newcommand<>{\btLstHL}[1]{%
\only#2{\btIfInRange{\value{lstnumber}}{#1}{\color{blue!30}}{\color{gray!20}}}%
}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \btInputEmph<overlay spec>[listing options]{range list}{file name}
%
\newcommand<>{\btLstInputEmph}[3][\empty]{%
\only#4{%
\lstset{linebackgroundcolor=\btLstHL{#2}}%
\lstinputlisting{#3}%
}% \only
}%
\makeatletter
\let\old@lstKV@SwitchCases\lstKV@SwitchCases
\def\lstKV@SwitchCases#1#2#3{}
\makeatother
\usepackage{lstlinebgrd}
\makeatletter
\let\lstKV@SwitchCases\old@lstKV@SwitchCases
\lst@Key{numbers}{none}{%
\def\lst@PlaceNumber{\lst@linebgrd}%
\lstKV@SwitchCases{#1}%
{none:\\%
left:\def\lst@PlaceNumber{\llap{\normalfont
\lst@numberstyle{\thelstnumber}\kern\lst@numbersep} \lst@linebgrd}\\%
right:\def\lst@PlaceNumber{\rlap{\normalfont
\kern\linewidth \kern\lst@numbersep
\lst@numberstyle{\thelstnumber}}\lst@linebgrd}%
}{\PackageError{Listings}{Numbers #1 unknown}\@ehc}}
\makeatother
\begin{document}
\begin{frame}[fragile]{Problem}
Test programme:
\begin{lstlisting}[%
language=C,
gobble=4,
linebackgroundcolor={%
\btLstHL<1>{1,3,5-6}%
\btLstHL<2>{4}%
},
backgroundcolor=\color{gray!20}
]
#include <stdio.h>
int main(void) {%
printf("Hello World!");
return 0;
}
\end{lstlisting}
\end{frame}
\end{document}
