[LyX/master] Fix preview of external material with plaintext and DocBook.

[Richard Heck]

commit 93a612220ed4ce604c864b72b14efc59e8ce6683
Author: Richard Heck <rgh...@lyx.org>
Date:   Sat Jul 30 23:48:27 2016 -0400

    Fix preview of external material with plaintext and DocBook.
---
 src/insets/InsetExternal.cpp |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/insets/InsetExternal.cpp b/src/insets/InsetExternal.cpp
index 1a19748..5f2a1b3 100644
--- a/src/insets/InsetExternal.cpp
+++ b/src/insets/InsetExternal.cpp
@@ -730,11 +730,12 @@ int InsetExternal::plaintext(odocstringstream & os,
        if (runparams.for_tooltip)
                return 0;
 
+       bool const external_in_tmpdir = !runparams.nice;
+       bool const dryrun = runparams.dryrun || runparams.inComment;
        otexstream ots(os, false);
        ots << '\n'; // output external material on a new line
        external::writeExternal(params_, "Ascii", buffer(), ots,
-                               *(runparams.exportdata), false,
-                               runparams.dryrun || runparams.inComment);
+                               *(runparams.exportdata), external_in_tmpdir, 
dryrun);
        return PLAINTEXT_NEWLINE;
 }
 
@@ -742,11 +743,12 @@ int InsetExternal::plaintext(odocstringstream & os,
 int InsetExternal::docbook(odocstream & os,
                           OutputParams const & runparams) const
 {
+       bool const external_in_tmpdir = !runparams.nice;
+       bool const dryrun = runparams.dryrun || runparams.inComment;
        odocstringstream ods;
        otexstream ots(ods, false);
        external::writeExternal(params_, "DocBook", buffer(), ots,
-                               *(runparams.exportdata), false,
-                               runparams.dryrun || runparams.inComment);
+                               *(runparams.exportdata), external_in_tmpdir, 
dryrun);
        os << ods.str();
        return int(count(ods.str().begin(), ods.str().end(), '\n'));
 }