beamermiktexsourcecode
I'm looking for the source code of default beamer themes (*.sty) for studying purpose.
A file content search for keywords like \setbeamertemplate only returns texworks.exe.
If these definitions are only shipped as binaries, is there another way to install the source?
On CTAN. http://ctan.org/tex-archive/systems/pdftex/
Links to the source code repository can be found on tug.org.
Edit:
To answer your follow up question, pdflatex does not invoke tex or etex. Rather, pdfTeX implements the ε-TeX extensions.
Here's half an answer.
The reason that it is half an answer is because of the way that beamer builds a frame. In essence, the stuff on a frame can be divided in to "frame" and "content". The "frame" component is actually typeset by hooking in to the headers and footers bit of TeX's output routine. This ensures that it goes behind the actual content. The "content" is then rendered afterwards. The "frame" component consists of all the stuff like backgrounds, sidebars, and so forth. Interestingly, the frame title is part of the "content".
What I've worked out so far is the order in which the "frame" stuff is laid out, and (mostly) what it consists of. To follow the trail, you need to look at the definition of \ps@navigation in beamerbaseframecomponents.sty and search for everywhere it has a \usebeamertemplate (though you have to be on the lookout for calls to other functions that also call templates).
Exactly what each piece is and how it is to be used is covered in the manual (section 8.2) as Matthew says, but that doesn't tell you the order (well, not obviously) and on the basis that a picture is worth a thousand words anyway, I thought that the following pictures might help.
First, a frame itself:
And now the exploded diagram, at least as far as the "frame" part goes.
It's not quite the same as I didn't take apart the templates and reuse them, but hopefully each bit is unique enough to show what it is.
With regard to the content, then there's less need to do the "explosion" because stuff tends not to get put on top of other stuff, so then it's just a question of knowing what can go in to a frame. The exception is, perhaps, the frame title which one could consider as part of the "frame" part but which, by reason of implementation, is in the "content" part. So for that, reading the beamer user guide is probably as good as you're going to get.
I shan't put the code for doing the above. It isn't pleasant! Nor is it readily adaptable to other situations.
Best Answer
The files loaded by TeX to use a LaTeX document class such as
beamerare text files: there are no binaries involved. If you know the name of the file TeX is loading you can find it usingkpsewhich. For example, the mainbeamerclass file is calledbeamer.cls, andat the Command Line/Terminal will find it. On my system it gives
Inside the
beamerfolder you will then find other files that come with it: a lot in the case ofbeamer, perhaps no additional files for a lot of packages. (The set up forbeameris pretty complex: there are a lot of files to read if you want to find a particular piece of code.)(Class files all have extension
.cls, package files all have extension.stythat's built-in to the LaTeX kernel, which is calledlatex.ltxshould you wish to read that! Thebeamertheme files have a naming patternbeamer<type>theme<name>.sty, so for example the 'Seagull' colour theme is defined bybeamercolorthemeseagull.sty.)Some document classes and packages use a source/extracted approach where the sources may not be directly usable. They might be found using
kpsewhich, for examplegives me
Note that
beamerdoesn't use such sources so this won't show anything. Also notice that MiKTeX and TeX Live have a different approach to the source files: TeX Live includes them all unzipped and so easy-to-find, while in MiKTeX most of the sources are compressed inside<installation root>\source.As noted in a comment, the
.logfile generated by TeX includes the location of each file loaded. MiKTeX always gives the full path for these, while TeX Live gives relative paths where appropriate (making it a bit easier to read in some cases).