While exporting from the command-line, theApp() doesn't exist.

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

diff --git a/src/graphics/PreviewLoader.cpp b/src/graphics/PreviewLoader.cpp
index 6185681f535e1d40e4c0ef7e5c4bab385c355e37..ce273aa1897c2672da0afb61c1cc371011ff9b8b 100644 (file)
--- a/src/graphics/PreviewLoader.cpp
+++ b/src/graphics/PreviewLoader.cpp
@@ -27,6 +27,7 @@
 #include "TexRow.h"
 
 #include "frontends/Application.h" // hexName
+#include "frontends/qt4/ColorCache.h"
 
 #include "insets/Inset.h"
 
@@ -36,6 +37,7 @@
 #include "support/filetools.h"
 #include "support/ForkedCalls.h"
 #include "support/lstrings.h"
+#include "support/qstring_helpers.h"
 
 #include "support/bind.h"
 
@@ -587,16 +589,26 @@ void PreviewLoader::Impl::startLoading(bool wait)
        // FIXME XHTML 
        // The colors should be customizable.
        ColorCode const bg = buffer_.isExporting() 
-                      ? Color_white : PreviewLoader::backgroundColor();
+               ? Color_white : PreviewLoader::backgroundColor();
        ColorCode const fg = buffer_.isExporting() 
-                      ? Color_black : PreviewLoader::foregroundColor();
+               ? Color_black : PreviewLoader::foregroundColor();
+       std::string bg_name, fg_name;
+       if (theApp()) {
+               fg_name = theApp()->hexName(fg);
+               bg_name = theApp()->hexName(bg);
+       } else {
+               ColorCache cc;
+               fg_name = ltrim(fromqstr(cc.get(fg).name()), "#");
+               bg_name = ltrim(fromqstr(cc.get(bg).name()), "#");
+       }
+
        // The conversion command.
        ostringstream cs;
        cs << pconverter_->command
           << " " << quoteName(latexfile.toFilesystemEncoding())
           << " --dpi " << int(font_scaling_factor)
-          << " --fg " << theApp()->hexName(fg)
-          << " --bg " << theApp()->hexName(bg);
+          << " --fg " << fg_name
+          << " --bg " << bg_name;
        // FIXME what about LuaTeX?
        if (buffer_.params().useNonTeXFonts)
                cs << " --latex=xelatex";