summaryrefslogtreecommitdiff
path: root/macros/latex/contrib/beamer/base/beamerbasetwoscreens.sty
diff options
context:
space:
mode:
Diffstat (limited to 'macros/latex/contrib/beamer/base/beamerbasetwoscreens.sty')
-rw-r--r--macros/latex/contrib/beamer/base/beamerbasetwoscreens.sty59
1 files changed, 59 insertions, 0 deletions
diff --git a/macros/latex/contrib/beamer/base/beamerbasetwoscreens.sty b/macros/latex/contrib/beamer/base/beamerbasetwoscreens.sty
new file mode 100644
index 0000000000..af617d7ccc
--- /dev/null
+++ b/macros/latex/contrib/beamer/base/beamerbasetwoscreens.sty
@@ -0,0 +1,59 @@
+% Copyright 2003--2007 by Till Tantau
+% Copyright 2010 by Vedran Mileti\'c
+% Copyright 2017 by Joseph Wright
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/licenses/LICENSE for more details.
+%
+% version 1.71 bugfix for \pgfpagescurrentpagewillbelogicalpage (hv)
+%
+%
+\mode
+<presentation>
+
+\newif\ifbeamer@twoscreenstext
+\newif\ifbeamer@dosecondmode
+
+\defbeameroption{previous slide on second screen}[right]%
+{%
+ \pgfpagesuselayout{two screens with lagging second}[second #1]%
+ \beamer@twoscreenstexttrue
+ \nofiles
+}
+
+\defbeameroption{second mode text on second screen}[right]%
+{%
+ \pgfpagesuselayout{two screens with optional second}[second #1]%
+ \beamer@twoscreenstexttrue
+}
+
+\defbeameroption{always typeset second mode}[true]%
+{%
+ \def\beamer@defaultdosecondmode{#1}%
+}
+\def\beamer@defaultdosecondmode{false}
+
+\long\def\beamer@dosecondscreennow#1{% called from \beamer@doseveralframes
+ \ifbeamer@dosecondmode%
+ {%
+ \clearpage
+ \def\beamer@currentmode{second}%
+ \gdef\beamer@doifnotinframe{}%
+ \def\beamer@doifinframe{\begin{beamer@frameslide}%
+ #1%
+ \end{beamer@frameslide}%
+ \pgfpagescurrentpagewillbelogicalpage{2}%
+ \clearpage
+ }%
+ \beamer@masterdecode{\beamer@whichframes}%
+ \beamer@donow
+ }%
+ \fi
+}
+
+\mode
+<all>