Makes footline blocks proportionals to the page size

texinputs/beamerthemetptnew.sty

@@ -22,10 +22,16 @@
 
 \pgfdeclareimage[width=\paperwidth,height=\paperheight]{BgdFirst}{fond.pdf}
 
-\newcommand\logoheight{1cm}
+% le logo fait 1cm de haut soit 7.8% des 12.8cm de large d'un beamer 4/3 standard
+\newcommand\logoheight{.07812\paperwidth}
 \pgfdeclareimage[width=\logoheight]{logoTPT}{tpt}
 \logo{\pgfuseimage{logoTPT}}
 
+% .3 cm pour un beamer standard de 9.6cm de haut
+\newcommand\footlineheight{0.03125\paperheight}
+
+% 1mm pour un beamer standard de 12.8cm de large
+\newcommand\footlinespacing{0.0078125\paperwidth}
 
 %
 % Fonts and colors.
@@ -124,26 +130,26 @@
    \end{beamercolorbox}
    \vskip -14pt%
    \hbox{%
-      \begin{beamercolorbox}[left,wd=.15\paperwidth,ht=.3cm,dp=1.5ex]{page in head/foot}%
+      \begin{beamercolorbox}[left,wd=.15\paperwidth,ht=\footlineheight,dp=1.5ex]{page in head/foot}%
          \hspace*{3ex}%
          \usebeamerfont{author in head/foot}\insertframenumber{}/\inserttotalframenumber%
          \hfill{}%
       \end{beamercolorbox}%
-      \hspace*{1ex}%
+      \hspace*{\footlinespacing}%
       \hfill{}%
-      \begin{beamercolorbox}[wd=.27\paperwidth,ht=.3cm,dp=1.5ex,leftskip=1em,rightskip=1em]{dept in head/foot}%
+      \begin{beamercolorbox}[wd=.27\paperwidth,ht=\footlineheight,dp=1.5ex,leftskip=1em,rightskip=1em]{dept in head/foot}%
          \hfill{}%
          \usebeamerfont{dept in head/foot}\insertdept%
          \hfill{}\hfill{}%
       \end{beamercolorbox}%
-      \hspace*{1ex}%
+      \hspace*{\footlinespacing}%
       \hfill{}%
-      \begin{beamercolorbox}[wd=.45\paperwidth,ht=.3cm,dp=1.5ex,leftskip=.3cm,rightskip=1ex]{title in head/foot}%
+      \begin{beamercolorbox}[wd=.46\paperwidth,ht=\footlineheight,dp=1.5ex,leftskip=.3cm,rightskip=1ex]{title in head/foot}%
          \usebeamerfont{author in head/foot}\insertshortauthor%
          \hfill{}%
          \usebeamerfont{date in head/foot}\insertshortdate%
       \end{beamercolorbox}
-      \hspace*{1ex}%
+      \hspace*{\footlinespacing}%
       \hfill{}%
       \raisebox{-1.5ex}{\insertlogo}% le logo
    }%