How to place a logo in the simpleslides module in ConTeXt?

Question

I found simpleslides module extremely suitable for academic presentations, yet I am clueless as how to place a logo in the lower right area of the slides in any of the specified styles. Is there any way to place a logo simply from the presentation context file? or something must be done in the third party module styles? The documentation of simpleslides module indicate that tweaking any of the provided styles is possible, but still your help would be highly appreciated to show how. I didn't find helpful information by searching the ConTeXt Wiki

MWE from the same module

\usemodule[visualcounter]
\usemodule[simpleslides][style=Sunrise] 
\setupTitle
  [ title={Simple Slides?},
   author={Hirwanto},
     date={6 Januari 2013},
  ]



\setupvisualcounter
  [simpleslides:squarescounter]
  [
   distance={(\the\dimexpr\visualcounterparameter{maxwidth})/last_counter - width},
  ]

\stopmode
\starttext

\placeTitle

\SlideTitle {The first slide}

Write whatever you want.

\SlideTitle {The second slide}
Continue writing.
% \externalfigure[logo.png][width=3cm,frame=off] % How to include a logo?
\stoptext

%%% Local Variables:
%%% mode: context
%%% TeX-master: t
%%% TeX-engine: luatex
%%% End:

Answer 1

Not the most automated solution, but as you can still use any valid ConTeXt solution I would suggest layers. Please note that in the current example you have to do manual positioning.

\usemodule[visualcounter]
\usemodule[simpleslides][style=Sunrise] 
\setupTitle
  [ title={Simple Slides?},
   author={Hirwanto},
     date={6 Januari 2013},
  ]



\setupvisualcounter
  [simpleslides:squarescounter]
  [
   distance={(\the\dimexpr\visualcounterparameter{maxwidth})/last_counter - width},
  ]

\definelayer[logo][state=repeat]
\setlayer[logo][x=\dimexpr(\paperwidth-4cm)\relax,y=8.75cm]{\externalfigure[example-image.png][width=3cm,frame=off]}

\setupSlideTitle[after={\placelayer[logo]}]

\starttext

\placeTitle

\SlideTitle {The first slide}

Write whatever you want.

\SlideTitle {The second slide}
Continue writing.
\stoptext

Answer 2

Using Texnician's solution, you can write your own module like

\startmodule myslidesetup
\setupvisualcounter
  [simpleslides:squarescounter]
  [
   distance={(\the\dimexpr\visualcounterparameter{maxwidth})/last_counter - width},
  ]

\definelayer[logo][state=repeat]
\setlayer[logo][x=\dimexpr(\paperwidth-4cm),y=8.75cm]{\externalfigure[example-image.png][width=3cm,frame=off]}

\setupSlideTitle[after={\placelayer[logo]}]
\stopmodule

and save it in a file t-myslidesetup.tex that can be in the same directory (or a parent)

Then you can use your setup like this :

\usemodule[visualcounter]
\usemodule[simpleslides][style=Sunrise] 
\usemodule[myslidesetup]

\setupTitle
  [ title={Simple Slides?},
   author={Hirwanto},
     date={6 Januari 2013},
  ]

\starttext

\placeTitle

\SlideTitle {The first slide}

Write whatever you want.

\SlideTitle {The second slide}
Continue writing.
\stoptext

You can also include the two calls

\usemodule[visualcounter]
\usemodule[simpleslides][style=Sunrise] 

in your own module (in the very beginning). Everything you write in your own module will override default setups so you don't have to tweak the original file and it is better if you want to share (no need to find, share and replace the modified system files).

Hope this helps