Support generating index-color PNG files

Based on the request http://stackoverflow.com/questions/27036474/how-do-make-doxygen-generate-index-color-png-files for index colored png files, this functionality will be included in the newer versions (2.39) of dot.
The functionality -Tpng:cairo:gd will automatically be used by doxygen, though the file extension would be wrong (.png:cairo:gd).
With this patch the :cairo:gd is stripped from the image extension, but not from the -T of the dot command.
In the doxywizard the different possibilities are supplied as well. Note however that the DOT_IMAGE_FORMAT name is not checked when read from the Doxyfile so it is possible to use other renderer / formats as well due to the generic solution with getDot ImageExtension.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/docbookvisitor.cpp b/src/docbookvisitor.cpp
index 29b3ea5..929ca42 100644
--- a/src/docbookvisitor.cpp
+++ b/src/docbookvisitor.cpp
@@ -1350,7 +1350,7 @@ void DocbookDocVisitor::startDotFile(const QCString &fileName,
   }
   baseName.prepend("dot_");
   QCString outDir = Config_getString("DOCBOOK_OUTPUT");
-  QCString imgExt = Config_getEnum("DOT_IMAGE_FORMAT");
+  QCString imgExt = getDotImageExtension();
   writeDotGraphFromFile(fileName,outDir,baseName,GOF_BITMAP);
   m_t << "<para>" << endl;
   visitPreStart(m_t, hasCaption, baseName + "." + imgExt,  width,  height);