use external script now.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4495 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/mathed/formula.C b/src/mathed/formula.C
index f936639491046e2009d1fcdeff64c89360e43a6b..88dea2d1ec0c17ce046cb9595986d01cd74511f3 100644 (file)
--- a/src/mathed/formula.C
+++ b/src/mathed/formula.C
@@ -480,15 +480,14 @@ void InsetFormula::updatePreview() const
                os << char('A' + (*it & 15)) << char('a' + (*it >> 4));
        string base = os.str();
        string dir  = OnlyPath(lyx::tempName());
-       string file = dir + base + ".eps";
+       string file = dir + base + ".lyxpreview";
 
        // everything is fine already
        if (loader_.filename() == file)
                return;
 
-       // The real work starts.
-       string const texfile = dir + base + ".tex";
-       std::ofstream of(texfile.c_str());
+       // the real work starts
+       std::ofstream of(file.c_str());
        of << "\\batchmode"
           << "\\documentclass{article}"
           << "\\usepackage{amssymb}"
@@ -499,23 +498,6 @@ void InsetFormula::updatePreview() const
           << "\\end{document}\n";
        of.close();
 
-       string const cmd =
-//             "latex " + base + ".tex ; " + "
-//    "dvips -x 2500 -R -E -o " + base + ".eps " + base + ".dvi ";
-       // Herbert says this is faster
-               "pdflatex --interaction batchmode " + base + "; " +
-               "dvips -x 2000 -R -E -o " + base + ".eps " + base + ".dvi ";
-       //lyxerr << "calling: '" << "(cd " + dir + "; " + cmd + ")\n";
-       Systemcall sc;
-       sc.startscript(Systemcall::Wait, "(cd " + dir + "; " + cmd + ")");
-
-       // now we are done, start actual loading
-       loader_.reset(file);
-       //lyxerr << "file '" << file << "' registered for preview\n";
-
-       // clean up a bit
-       lyx::unlink(dir + base + ".tex");
-       lyx::unlink(dir + base + ".aux");
-       lyx::unlink(dir + base + ".dvi");
-       lyx::unlink(dir + base + ".log");
-}
+       // now we are done, start actual loading we will get called back via
+       // InsetFormula::statusChanged() if this is finished
+       loader_.reset(file); }