beamer-rl (3may19)

git-svn-id: svn://tug.org/texlive/trunk@50970 c570f23f-e606-0410-a88d-b1316a301751

7 files changed, 394 insertions, 65 deletions

diff --git a/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-ar.pdf b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-ar.pdf
new file mode 100644
index 00000000000..31b4ff520f4
--- /dev/null
+++ b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-ar.pdf
diff --git a/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-ar.tex b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-ar.tex
new file mode 100644
index 00000000000..367358a7b33
--- /dev/null
+++ b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-ar.tex
@@ -0,0 +1,277 @@
+\documentclass{beamer}
+\usepackage{hologo} % pdflatex, xelatex, lualatex logos 
+
+\usepackage{beamer-rl}
+\babelprovide[import=ar-DZ, main]{arabic}
+\babelfont{sf}{Amiri}
+
+% Themes without Navigation Bars
+%\mode<presentation>{\usetheme{default}}
+%\mode<presentation>{\usetheme{boxes}}
+%\mode<presentation>{\usetheme{Bergen}}
+%\mode<presentation>{\usetheme{Boadilla}}
+%\mode<presentation>{\usetheme{Madrid}}
+%\mode<presentation>{\usetheme{AnnArbor}}
+\mode<presentation>{\usetheme{CambridgeUS}}
+%\mode<presentation>{\usetheme{EastLansing}}
+%\mode<presentation>{\usetheme{Pittsburgh}}
+%\mode<presentation>{\usetheme{Rochester}}
+
+% Themes with a Tree-Like Navigation Bar
+%\mode<presentation>{\usetheme{Antibes}}
+%\mode<presentation>{\usetheme{JuanLesPins}}
+%\mode<presentation>{\usetheme{Montpellier}}
+
+% Themes with a Table of Contents Sidebar
+%\mode<presentation>{\usetheme{Berkeley}}
+%\mode<presentation>{\usetheme{PaloAlto}}
+%\mode<presentation>{\usetheme{Goettingen}}
+%\mode<presentation>{\usetheme{Hannover}}
+
+% Themes with a Mini Frame Navigation
+%\mode<presentation>{\usetheme{Berlin}}
+%\mode<presentation>{\usetheme{Ilmenau}}
+%\mode<presentation>{\usetheme{Dresden}}
+%\mode<presentation>{\usetheme{Darmstadt}}
+%\mode<presentation>{\usetheme{Frankfurt}}
+%\mode<presentation>{\usetheme{Singapore}}
+%\mode<presentation>{\usetheme{Szeged}}
+
+% Themes with Section and Subsection Tables
+%\mode<presentation>{\usetheme{Copenhagen}}
+%\mode<presentation>{\usetheme{Luebeck}}
+%\mode<presentation>{\usetheme{Malmoe}}
+%\mode<presentation>{\usetheme{Warsaw}}
+
+\usecolortheme{spruce}
+
+\title{حزمة beamer-rl}
+
+\author{Salim Bou}
+
+\institute[]{%
+{\color{blue} Repository: } https://github.com/seloumi/beamer-rl \par 
+{\color{blue} Bug tracker: } https://github.com/seloumi/beamer-rl/issues
+}
+
+\date{\today}
+
+\setbeamercovered{transparent=10}
+\newtheorem*{thm}{نظرية.}
+
+\def\cs#1{\babelsublr{\texttt{\textbackslash#1}}}
+
+\begin{document}
+
+\parskip=6pt
+
+\begin{frame}
+\titlepage
+\end{frame}
+
+\begin{frame}
+\frametitle{\contentsname}
+\tableofcontents
+\end{frame}
+
+\section{مدخل}
+
+\begin{frame}[fragile]
+\frametitle{مدخل}
+انشاء عرض بيمر عربي (اتجاه النص من اليمين لليسار) اعتمادا على 
+ \hologo{pdfLaTeX} أو \hologo{XeLaTeX} مازال يعترضه الكثير من المشاكل والمعوقات خاصة ما يتعلق بالألوان والروابط والتي لم يوجد لها حلولا~بعد. 
+
+فريق  \hologo{LuaTeX} 
+أوجد حلولا لهذه المشاكل، الشكر لهم ولـ 
+\textit{Javier~Bezos}
+لأعماله بالحزمة
+\verb|babel| وخصوصا الكتابة بالاتجاهين (\verb|bidi| writing)    
+
+هذه الحزمة تعدل في بعض اوامر وتعليمات beamer لغرض انشاء عروض من اليمين إلى اليسار (العربية على سبيل المثال)، الحزمة تستدعي \verb|babel| مع الخيار 
+\verb|bidi=basic-r|
+ والمعالجة تتطلب استخدام 
+\hologo{LuaLaTeX} 
+
+\end{frame}
+
+\section{كيفية استعمال الحزمة}
+
+\begin{frame}[fragile]
+\frametitle{كيفية استعمال الحزمة}
+
+\selectlanguage{nil}
+
+\begin{verbatim}
+\documentclass{beamer}
+\usepackage{beamer-rl}
+\babelprovide[import=ar-DZ, main]{arabic}
+\babelfont{sf}{Amiri}
+
+\mode<presentation>{\usetheme{Warsaw}}
+\begin{document}
+...
+\end{document}
+
+\end{verbatim}
+
+\end{frame}
+
+\section{أمثلة}
+\subsection{الإطارات}
+
+\begin{frame}[fragile]
+\frametitle{الإطارات}
+
+{\selectlanguage{nil}
+\verb:\setbeamertemplate{blocks}[default]:
+}
+
+\setbeamertemplate{blocks}[default]
+
+
+\begin{block}{أورستد}
+  لاحظ هانز أورستد في 21 أبريل 1820 وهو يُعد أحد التجارب أن إبرة
+  البوصلة تنحرف عن اتجاهها نحو الشمال عندما كان يغلق ويفتح التيار في
+  دائرة كهربائية يُعدها.
+\end{block}
+
+{\selectlanguage{nil}
+\verb:\setbeamertemplate{blocks}[rounded][shadow=true]:
+}
+
+\setbeamertemplate{blocks}[rounded][shadow=true]
+
+\begin{block}{أورستد}
+  لاحظ هانز أورستد في 21 أبريل 1820 وهو يُعد أحد التجارب أن إبرة
+  البوصلة تنحرف عن اتجاهها نحو الشمال عندما كان يغلق ويفتح التيار في
+  دائرة كهربائية يُعدها.
+\end{block}
+
+\end{frame}
+
+\subsection{القوائم}
+
+\begin{frame}[fragile]
+\frametitle{enumerate, itemize}
+
+\begin{enumerate}
+\item فيزياء تطبيقية
+\item فيزياء تجريبية
+\item فيزياء نظرية
+\end{enumerate}
+
+\setbeamertemplate{itemize item}[triangle]
+
+{\selectlanguage{nil}
+\verb|\setbeamertemplate{itemize item}[triangle]|
+}
+
+\begin{itemize}
+\item فيزياء تطبيقية
+\item فيزياء تجريبية
+\item فيزياء نظرية
+\end{itemize}
+
+\selectlanguage{nil}
+
+\begin{itemize}
+\item first item
+\item second item
+\item third item
+\end{itemize}
+
+\end{frame}
+
+\subsection{الروابط}
+
+\begin{frame}
+\frametitle{الروابط}
+\begin{itemize}
+\item<1-> العنصر الأول.
+\item<2-> العنصر الثاني.
+\item<3-> العنصر الثالث.
+\end{itemize}
+\hyperlink{jumptosecond}{\beamerreturnbutton{الرجوع إلى الشريحة الثانية}}
+\hypertarget<2>{jumptosecond}{}
+
+\end{frame}
+
+
+\subsection{النظريات}
+
+\begin{frame}
+\frametitle{النظريات}
+
+\framesubtitle{The proof uses \textit{reductio ad absurdum}.}
+\begin{thm}
+There is no largest prime number.
+\end{thm}
+\begin{proof}
+\begin{enumerate}[<+-| alert@+>]
+\item Suppose $p$ were the largest prime number.
+\item Let $q$ be the product of the first $p$ numbers.
+\item Then $q+1$ is not divisible by any of them.
+\item But $q + 1$ is greater than $1$, thus divisible by some prime
+number not in the first $p$ numbers.\qedhere
+\end{enumerate}
+\end{proof}
+
+\end{frame}
+
+\subsection{التكبير}
+
+\begin{frame}[fragile]
+\frametitle{التكبير}
+
+\framezoom<1><2>[border=2](2cm,2cm)(2cm,2cm)
+\pgfimage[height=5cm]{example-image}
+
+\selectlanguage{nil}
+
+\begin{verbatim}
+\framezoom<1><2>[border=2](2cm,2cm)(2cm,2cm)
+\pgfimage[height=5cm]{example-image}
+\end{verbatim}
+\end{frame}
+
+\section{بعض الملاحظات}
+
+\begin{frame}[fragile]
+\frametitle{بعض الملاحظات}
+
+\begin{itemize}
+\item
+الحزمة 
+ \verb:beamer-rl: تقوم بتبادل لكل من التعليمتين  \cs{blacktriangleright} و   \cs{blacktriangleleft} في حالة نص من اليمين لليسار
+
+\bigskip
+
+{\selectlanguage{nil}
+\centering
+\begin{tabular}{c|cc}
+\hline
+ &  \verb:\blacktriangleright: & \verb:\blacktriangleleft:   \\
+\hline 
+LTR context & \blacktriangleright & \blacktriangleleft \\
+\hline
+RTL context & {\selectlanguage{arabic}\blacktriangleright} & {\selectlanguage{arabic}\blacktriangleleft} \\
+\hline
+\end{tabular}
+\par
+}
+
+\bigskip
+ 
+ 
+\item
+في بعض الحالات يمكن استعمال التعليمة 
+ \cs{babelsublr} التي توفرها الحزمة  \verb:bebel: 
+لادراج نص من اليسار لليمين (لاتيني) في وسط نص من اليمين لليسار،
+ على سبيل المثال  في حال اردنا ادراج رسم  
+ \verb:pspicture: ضمن نص من اليمين لليسار. 
+\end{itemize}
+
+
+\end{frame}
+
+\end{document}
diff --git a/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-en.pdf b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-en.pdf
new file mode 100644
index 00000000000..4629290c753
--- /dev/null
+++ b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-en.pdf
diff --git a/Master/texmf-dist/doc/lualatex/beamer-rl/test-beamer-rl.tex b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-en.tex
index 8e061237c89..3593e937599 100644
--- a/Master/texmf-dist/doc/lualatex/beamer-rl/test-beamer-rl.tex
+++ b/Master/texmf-dist/doc/lualatex/beamer-rl/Example-of-use-en.tex
@@ -1,14 +1,11 @@
-\documentclass[hyperref=unicode]{beamer}
+\documentclass{beamer}
 \usepackage{hologo} % pdflatex, xelatex, lualatex logos 
 
-\usepackage[nil,bidi=basic-r,layout=counters]{babel}
+\usepackage{beamer-rl}
 \babelprovide[import=ar-DZ, main]{arabic}
 \babelprovide[import,language=Default]{english}
 \babelfont{sf}{Amiri}
 
-
-\usepackage{beamer-rl}
-
 % Themes without Navigation Bars
 %\mode<presentation>{\usetheme{default}}
 %\mode<presentation>{\usetheme{boxes}}
@@ -47,9 +44,6 @@
 %\mode<presentation>{\usetheme{Malmoe}}
 %\mode<presentation>{\usetheme{Warsaw}}
 
-
-\usepackage{tikz}
-
 \title{The beamer-rl package}
 
 \author{Salim Bou}
@@ -63,11 +57,13 @@
 \date{{\selectlanguage{english} \today}}
 
 \setbeamercovered{transparent=10}
-\newtheorem*{thm}{نظرية.}
+\newtheorem*{prf}{Proof}
 
 
 \begin{document}
 
+\parskip=6pt
+
 \begin{frame}
 \titlepage
 \end{frame}
@@ -83,8 +79,10 @@
 \frametitle{Introduction}
 Creating beamer presentation for  right to left language  (like arabic) using \hologo{pdfLaTeX} or \hologo{XeLaTeX} still poses many problems due to bugs not currently resolved especially for colors and hyperlinks
 
-The \hologo{LuaTeX} team set solutions for  these issues thanks to them and to \textit{Javier Bezos} for  his works on the package \verb|babel| and \verb|bidi| writing    
+The \hologo{LuaTeX} team set solutions for  these issues thanks to them and to \textit{Javier~Bezos} for  his works on the package \verb|babel| and \verb|bidi| writing    
 
+This package provides patchs of some beamer templates and commands 
+for right to left presentation, this package call babel with \verb|bidi=basic-r| option and require lualatex engine
 
 \end{frame}
 
@@ -97,10 +95,9 @@ The \hologo{LuaTeX} team set solutions for  these issues thanks to them and to \
 
 \begin{verbatim}
 \documentclass{beamer}
-\usepackage[nil,bidi=basic-r,layout=counters]{babel}
+\usepackage{beamer-rl}
 \babelprovide[import=ar-DZ, main]{arabic}
 \babelfont{sf}{Amiri}
-\usepackage{beamer-rl}
 
 \mode<presentation>{\usetheme{Warsaw}}
 \begin{document}
@@ -137,43 +134,60 @@ The \hologo{LuaTeX} team set solutions for  these issues thanks to them and to \
 
 \setbeamertemplate{blocks}[rounded][shadow=true]
 
-\begin{block}{أورستد}
-  لاحظ هانز أورستد في 21 أبريل 1820 وهو يُعد أحد التجارب أن إبرة
-  البوصلة تنحرف عن اتجاهها نحو الشمال عندما كان يغلق ويفتح التيار في
-  دائرة كهربائية يُعدها.
+\begin{block}{Lorem}
+  \selectlanguage{nil} 
+  On 21 April 1820, during a lecture, Ørsted
+  noticed a compass needle deflected from magnetic north when an
+  electric current from a battery was switched on and off.
 \end{block}
 
 \end{frame}
 
-\subsection{enumerate, itemize}
+\subsection{Lists}
 
-\begin{frame}
+\begin{frame}[fragile]
 \frametitle{enumerate, itemize}
 
 \begin{enumerate}
-\item فيزياء تطبيقية
-\item فيزياء تجريبية
-\item فيزياء نظرية
+\item first item
+\item second item
+\item third item
 \end{enumerate}
 
+\setbeamertemplate{itemize item}[triangle]
+
+{\selectlanguage{nil}
+\verb|\setbeamertemplate{itemize item}[triangle]|
+}
+
 
 \begin{itemize}
-\item فيزياء تطبيقية
-\item فيزياء تجريبية
-\item فيزياء نظرية
+\item first item
+\item second item
+\item third item
 \end{itemize}
+
+\selectlanguage{nil}
+
+\begin{itemize}
+\item first item
+\item second item
+\item third item
+\end{itemize}
+
+
 \end{frame}
 
-\subsection{hyperlinks}
+\subsection{Hyperlinks}
 
 \begin{frame}
-\frametitle{hyperlinks}
+\frametitle{Hyperlinks}
 \begin{itemize}
 \item<1-> First item.
 \item<2-> Second item.
 \item<3-> Third item.
 \end{itemize}
-\hyperlink{jumptosecond}{\beamergotobutton{الرجوع إلى الشريحة الثانية}}
+\hyperlink{jumptosecond}{\beamergotobutton{return to second slide}}
 \hypertarget<2>{jumptosecond}{}
 \end{frame}
 
@@ -184,10 +198,10 @@ The \hologo{LuaTeX} team set solutions for  these issues thanks to them and to \
 \frametitle{Theorems}
 
 \framesubtitle{The proof uses \textit{reductio ad absurdum}.}
-\begin{thm}
+\begin{theorem}
 There is no largest prime number.
-\end{thm}
-\begin{proof}
+\end{theorem}
+\begin{prf}
 \begin{enumerate}[<+-| alert@+>]
 \item Suppose $p$ were the largest prime number.
 \item Let $q$ be the product of the first $p$ numbers.
@@ -195,14 +209,14 @@ There is no largest prime number.
 \item But $q + 1$ is greater than $1$, thus divisible by some prime
 number not in the first $p$ numbers.\qedhere
 \end{enumerate}
-\end{proof}
+\end{prf}
 
 \end{frame}
 
-\subsection{zooming}
+\subsection{Zooming}
 
 \begin{frame}[fragile]
-\frametitle{zooming}
+\frametitle{Zooming}
 
 \framezoom<1><2>[border=2](2cm,2cm)(2cm,2cm)
 \pgfimage[height=5cm]{example-image}
@@ -222,13 +236,31 @@ number not in the first $p$ numbers.\qedhere
 
 \begin{itemize}
 \item
-The \verb:beamer-rl: package modify the definition of \verb:\blacktriangleright: so it have the same meaning as\verb:\blacktriangleleft:, if you need to use the original command you can use \verb:\blackTriangleright:
+The \verb:beamer-rl: package swap the definition of \verb:\blacktriangleright: with  \verb:\blacktriangleleft: in RTL context.
+
+\bigskip
+
+{\selectlanguage{nil}
+\centering
+\begin{tabular}{c|cc}
+\hline
+ &  \verb:\blacktriangleright: & \verb:\blacktriangleleft:   \\
+\hline 
+LTR context & \blacktriangleright & \blacktriangleleft \\
+\hline
+RTL context & {\selectlanguage{arabic}\blacktriangleright} & {\selectlanguage{arabic}\blacktriangleleft} \\
+\hline
+\end{tabular}
+\par
+}
+
+\bigskip
+
 \item
 In some cases you  need to use \verb:\babelsublr: command from \verb:bebel: 
-package to insert a left to right text within your right to left text.
+package to insert a left to right text within your right to left text, e.g if you need to insert a \verb:pspicture: drawing in RTL context 
 \end{itemize}
 
 \end{frame}
 
-
 \end{document}
diff --git a/Master/texmf-dist/doc/lualatex/beamer-rl/README.txt b/Master/texmf-dist/doc/lualatex/beamer-rl/README.txt
index 85c4ed4557e..a262ea9250c 100644
--- a/Master/texmf-dist/doc/lualatex/beamer-rl/README.txt
+++ b/Master/texmf-dist/doc/lualatex/beamer-rl/README.txt
@@ -1,5 +1,5 @@
 The beamer-rl package
-v1.1
+v1.2
 
 This package provides patchs of some beamer templates and commands 
 for right to left presentation, this package require babel with lualatex engine  
@@ -9,7 +9,7 @@ please use the issue tracker:
 
   <https://github.com/seloumi/beamer-rl/issues>
 
-Current version release date: 2019/03/28
+Current version release date: 2019/04/03
 
 ___________________
 Salim Bou
@@ -20,4 +20,4 @@ version 1.3c or higher (your choice). The latest version of
 this license is at: http://www.latex-project.org/lppl.txt
 
 This work is author-maintained (as per LPPL maintenance status)
-by Salim Bou.
+by Salim Bou.
\ No newline at end of file
diff --git a/Master/texmf-dist/doc/lualatex/beamer-rl/test-beamer-rl.pdf b/Master/texmf-dist/doc/lualatex/beamer-rl/test-beamer-rl.pdf
deleted file mode 100644
index 784d343c135..00000000000
--- a/Master/texmf-dist/doc/lualatex/beamer-rl/test-beamer-rl.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/tex/lualatex/beamer-rl/beamer-rl.sty b/Master/texmf-dist/tex/lualatex/beamer-rl/beamer-rl.sty
index 55886644c92..b476c58fb0e 100644
--- a/Master/texmf-dist/tex/lualatex/beamer-rl/beamer-rl.sty
+++ b/Master/texmf-dist/tex/lualatex/beamer-rl/beamer-rl.sty
@@ -1,6 +1,8 @@
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesPackage{beamer-rl}
-[2019/03/28 v1.1 LaTeX package to patch beamer for right to left presentation]
+[2019/04/03 v1.2 LaTeX package to patch beamer for right to left presentation]
+
+\RequirePackage[nil,bidi=basic-r,layout=counters.lists.tabular]{babel}
 
 \def\reset@temp#1#2{\expandafter\let\csname beamer@@tmpop@#1@#2\endcsname\relax}
 \def\@@defbeamertemplate#1#2{\reset@temp{#1}{#2}\defbeamertemplate{#1}{#2}}
@@ -10,8 +12,14 @@
 	\@ifstar{\@defbeamertemplate}{\@@defbeamertemplate}%
 }
 
-\let\blackTriangleright\blacktriangleright
-\let\blacktriangleright\blacktriangleleft
+\let\old@blacktriangleright\blacktriangleright
+\let\old@blacktriangleleft\blacktriangleleft
+
+\def\blacktriangleright{%
+	\ifcase\bbl@thepardir \old@blacktriangleright\else\old@blacktriangleleft\fi}
+\def\blacktriangleleft{%
+	\ifcase\bbl@thepardir \old@blacktriangleleft\else\old@blacktriangleright\fi}
+
 
 \let\oldpgfpicture\pgfpicture
 \let\oldendpgfpicture\endpgfpicture
@@ -22,6 +30,9 @@
 \let\oldpgfuseshading\pgfuseshading
 \def\pgfuseshading#1{\babelsublr{\oldpgfuseshading{#1}}}
 
+\hypersetup{unicode}
+
+
 %% beamerbasebox 
 
 \newdimen\bmb@dimc
@@ -235,7 +246,7 @@
 %% beamerbaseauxtemplates
 
 
-% (sub-)section in toc: ball
+% (sub-)section in toc: subsections numbered
 
 \redefbeamertemplate{subsection in toc}{subsections numbered}
 {\leavevmode\leftskip=2em\rlap{\hskip-2em \inserttocsectionnumber\hbox{.}\inserttocsubsectionnumber}\inserttocsubsection\par}
@@ -291,26 +302,38 @@
 	\kern4pt%
 }
 
-
 %% beamerbasenavigation
 
 % User Buttons
 
 \pgfdefobject{beamergotosymbol}{\pgfpoint{0pt}{-1pt}}{\pgfpoint{5pt}{5pt}}
 {
+	\pgfpathqmoveto{1.5bp}{0.5bp}
+	\pgfpathqlineto{3.5bp}{2bp}
+	\pgfpathqlineto{1.5bp}{3.5bp}
+	\pgfusepathqfill
+}
+
+\def\insertgotosymbol{%
+	\begin{pgfpicture}{1pt}{0pt}{6pt}{5pt}
+		\pgfuseobject{\ifcase\bbl@thepardir beamergotosymbol\else beamerreturnsymbol\fi}%
+\end{pgfpicture}}
+
+\pgfdefobject{beamerreturnsymbol}{\pgfpoint{0pt}{-1pt}}{\pgfpoint{5pt}{5pt}}
+{
 	\pgfpathqmoveto{3.5bp}{0.5bp}
 	\pgfpathqlineto{1.5bp}{2bp}
 	\pgfpathqlineto{3.5bp}{3.5bp}
 	\pgfusepathqfill
 }
 
-
-\def\insertgotosymbol{%
-	\begin{pgfpicture}{-1pt}{0pt}{4pt}{5pt}
-		\pgfuseobject{beamergotosymbol}%
+\def\insertreturnsymbol{%
+	\begin{pgfpicture}{1pt}{0pt}{6pt}{5pt}
+		\pgfuseobject{\ifcase\bbl@thepardir beamerreturnsymbol\else beamergotosymbol\fi}%
 \end{pgfpicture}}
 
-\pgfdefobject{beamerskipsymbol}{\pgfpoint{0pt}{-1pt}}{\pgfpoint{7pt}{5pt}}
+
+\pgfdefobject{beamerskipsymbolrl}{\pgfpoint{0pt}{-1pt}}{\pgfpoint{7pt}{5pt}}
 {
 	\pgfpathqmoveto{3.5bp}{0.5bp}
 	\pgfpathqlineto{1.5bp}{2bp}
@@ -321,34 +344,32 @@
 	\pgfusepathqfill
 }
 
-\def\insertskipsymbol{%
-	\begin{pgfpicture}{-1pt}{0pt}{8pt}{5pt}
-		\pgfuseobject{beamerskipsymbol}%
-\end{pgfpicture}}
-
-
-\pgfdefobject{beamerreturnsymbol}{\pgfpoint{0pt}{-1pt}}{\pgfpoint{5pt}{5pt}}
+\pgfdefobject{beamerskipsymbol}{\pgfpoint{0pt}{-1pt}}{\pgfpoint{7pt}{5pt}}
 {
 	\pgfpathqmoveto{1.5bp}{0.5bp}
 	\pgfpathqlineto{3.5bp}{2bp}
 	\pgfpathqlineto{1.5bp}{3.5bp}
+	\pgfpathqmoveto{3.5bp}{0.5bp}
+	\pgfpathqlineto{5.5bp}{2bp}
+	\pgfpathqlineto{3.5bp}{3.5bp}
 	\pgfusepathqfill
 }
 
-\def\insertreturnsymbol{%
+\def\insertskipsymbol{%
 	\begin{pgfpicture}{-1pt}{0pt}{6pt}{5pt}
-		\pgfuseobject{beamerreturnsymbol}%
+		\pgfuseobject{\ifcase\bbl@thepardir beamerskipsymbol\else beamerskipsymbolrl\fi}%
 \end{pgfpicture}}
 
+\def\beamergotobutton#1{\beamerbutton{\insertgotosymbol\ #1}}
+\def\beamerreturnbutton#1{\beamerbutton{\insertreturnsymbol\ #1}}
+\def\beamerskipbutton#1{\beamerbutton{\insertskipsymbol\ #1}}
 
 %% beamerbaseframesize
 
-
 %
 % Zoom stuff
 %
 
-\def\framezoom<#1><#2>{\@ifnextchar[{\beamer@framezoom<#1><#2>}{\beamer@framezoom<#1><#2>[]}}
 \def\beamer@framezoom<#1><#2>[#3](#4,#5)(#6,#7){%
 	\par\nointerlineskip%
 	\global\beamer@slidehaszoomtrue%
@@ -370,6 +391,7 @@
 		\global\setbox\beamer@zoombox=\vbox to0pt{\unvbox\beamer@zoombox\box\@tempboxa}%
 	}%
 	\only<#2>{%
+		\pardir TLT% 
 		\@ifundefined{\beamer@labelzoomed}%
 		{%
 			\hypertarget{\beamer@labelzoomed}{}%
@@ -413,12 +435,10 @@
 			\dp\@tempboxa=0pt%
 			\setbox\beamer@framebox=\vbox to\beamer@frametextheight{{%
 					\ifbeamer@plainframe\beamer@leftmargin=\Gm@lmargin\fi%
-					\let\pgfpicture\oldpgfpicture
-					\let\endpgfpicture\oldendpgfpicture
-					\textdir TLT
+					\pardir TLT% 
 					\begin{pgfpicture}{\beamer@leftmargin}{-\beamer@frametextheight}{\beamer@leftmargin}{0pt}
 						\pgftext[left,top]{\box\@tempboxa}
-						\pgfpathrectangle{\pgfpoint{-\@tempdimb}{-\@tempdimc}}{\pgfpoint{\@tempdimb}{\@tempdimc}}%
+						\pgfpathrectangle{\pgfpoint{0pt}{-\@tempdimc}}{\pgfpoint{\@tempdimb}{\@tempdimc}}%
 						\pgfusepath{clip}
 						\begingroup
 						\pgftransformscale{\beamer@temp}
@@ -431,7 +451,7 @@
 			}}%
 			
 			\setbox\beamer@framebox=\vbox{%
-				\nobreak\vbox{}\nobreak\par\nobreak\beamer@entrycode\nobreak%
+	            \nobreak\vbox{}\nobreak\par\nobreak\beamer@entrycode\nobreak%
 				\nointerlineskip\unvbox\beamer@frametitlebox%
 				\nobreak%
 				\box\beamer@framebox %