Change the "empty layout" to the "plain layout", to try to avoid confusion.

[lyx.git] / src / graphics / PreviewLoader.cpp

diff --git a/src/graphics/PreviewLoader.cpp b/src/graphics/PreviewLoader.cpp
index 67798581f05386db05179cf99af14ad2879be9fb..514b6253d35facb1efdf88a337ad7e1c2b3a2aa3 100644 (file)
--- a/src/graphics/PreviewLoader.cpp
+++ b/src/graphics/PreviewLoader.cpp
@@ -73,7 +73,7 @@ lyx::Converter const * setConverter()
 
        typedef vector<string> FmtList;
        typedef lyx::graphics::Cache GCache;
-       FmtList const loadableFormats = GCache::get().loadableFormats();
+       FmtList const & loadableFormats = GCache::get().loadableFormats();
        FmtList::const_iterator it = loadableFormats.begin();
        FmtList::const_iterator const end = loadableFormats.end();
 
@@ -354,7 +354,7 @@ InProgress::InProgress(string const & filename_base,
                       PendingSnippets const & pending,
                       string const & to_format)
        : pid(0),
-         metrics_file(FileName(filename_base + ".metrics")),
+         metrics_file(filename_base + ".metrics"),
          snippets(pending.size())
 {
        PendingSnippets::const_iterator pit  = pending.begin();
@@ -717,8 +717,19 @@ void PreviewLoader::Impl::dumpPreamble(odocstream & os) const
 
        // Use the preview style file to ensure that each snippet appears on a
        // fresh page.
+       // Also support PDF output (automatically generated e.g. when
+       // \usepackage[pdftex]{hyperref} is used.
        os << "\n"
-          << "\\usepackage[active,delayed,dvips,showlabels,lyx]{preview}\n"
+          << "\\newif\\ifpdf\n"
+          << "\\ifx\\pdfoutput\\undefined\n"
+          << "\\else\\ifx\\pdfoutput\\relax\n"
+          << "\\else\\ifnum0=\\pdfoutput\n"
+          << "\\else\\pdftrue\\fi\\fi\\fi\n"
+          << "\\ifpdf\n"
+          << "  \\usepackage[active,delayed,tightpage,showlabels,lyx,pdftex]{preview}\n"
+          << "\\else\n"
+          << "  \\usepackage[active,delayed,showlabels,lyx,dvips]{preview}\n"
+          << "\\fi\n"
           << "\n";
 }