Merge pull request #4170 from oltolm/opendocument

improve formatting of formulas in OpenDocument

2 files changed, 49 insertions, 9 deletions

diff --git a/src/Text/Pandoc/Writers/ODT.hs b/src/Text/Pandoc/Writers/ODT.hs
index 390d7c3ba..08b4206e3 100644
--- a/src/Text/Pandoc/Writers/ODT.hs
+++ b/src/Text/Pandoc/Writers/ODT.hs
@@ -56,7 +56,7 @@ import Text.Pandoc.XML
 import Text.TeXMath
 import Text.XML.Light
 
-data ODTState = ODTState { stEntries :: [Entry]
+newtype ODTState = ODTState { stEntries :: [Entry]
                          }
 
 type O m = StateT ODTState m
@@ -224,17 +224,39 @@ transformPicMath _ (Math t math) = do
          let dirname = "Formula-" ++ show (length entries) ++ "/"
          let fname = dirname ++ "content.xml"
          let entry = toEntry fname epochtime (fromStringLazy mathml)
-         modify $ \st -> st{ stEntries = entry : entries }
+         let fname' = dirname ++ "settings.xml"
+         let entry' = toEntry fname' epochtime $ documentSettings (t == InlineMath)
+         modify $ \st -> st{ stEntries = entry' : (entry : entries) }
          return $ RawInline (Format "opendocument") $ render Nothing $
-           inTags False "draw:frame" [("text:anchor-type",
-                                       if t == DisplayMath
-                                          then "paragraph"
-                                          else "as-char")
-                                     ,("style:vertical-pos", "middle")
-                                     ,("style:vertical-rel", "text")] $
+           inTags False "draw:frame" (if t == DisplayMath
+                                      then [("draw:style-name","fr2")
+                                           -- `draw:frame` does not support either
+                                           -- `style:vertical-pos` or `style:vertical-rel`,
+                                           -- therefore those attributes must go into the
+                                           -- `style:style` element
+                                           ,("text:anchor-type","paragraph")]
+                                      else [("draw:style-name","fr1")
+                                           ,("text:anchor-type","as-char")]) $
              selfClosingTag "draw:object" [("xlink:href", dirname)
                                         , ("xlink:type", "simple")
                                         , ("xlink:show", "embed")
                                         , ("xlink:actuate", "onLoad")]
 
 transformPicMath _ x = return x
+
+documentSettings :: Bool -> B.ByteString
+documentSettings isTextMode = fromStringLazy $ render Nothing
+    $ text "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+    $$
+    (inTags True "office:document-settings"
+      [("xmlns:office","urn:oasis:names:tc:opendocument:xmlns:office:1.0")
+      ,("xmlns:xlink","http://www.w3.org/1999/xlink")
+      ,("xmlns:config","urn:oasis:names:tc:opendocument:xmlns:config:1.0")
+      ,("xmlns:ooo","http://openoffice.org/2004/office")
+      ,("office:version","1.2")] $
+       inTagsSimple "office:settings" $
+         inTags False "config:config-item-set"
+           [("config:name", "ooo:configuration-settings")] $
+           inTags False "config:config-item" [("config:name", "IsTextMode")
+                                             ,("config:type", "boolean")] $
+                                              text $ if isTextMode then "true" else "false")
diff --git a/src/Text/Pandoc/Writers/OpenDocument.hs b/src/Text/Pandoc/Writers/OpenDocument.hs
index 8aa19dbb5..dc7d14d05 100644
--- a/src/Text/Pandoc/Writers/OpenDocument.hs
+++ b/src/Text/Pandoc/Writers/OpenDocument.hs
@@ -173,6 +173,24 @@ inTextStyle d = do
               return $ inTags False
                   "text:span" [("text:style-name",styleName)] d
 
+formulaStyles :: [Doc]
+formulaStyles = [formulaStyle InlineMath, formulaStyle DisplayMath]
+
+formulaStyle :: MathType -> Doc
+formulaStyle mt = inTags False "style:style"
+  [("style:name", if mt == InlineMath then "fr1" else "fr2")
+  ,("style:family", "graphic")
+  ,("style:parent-style-name", "Formula")]
+  $ selfClosingTag "style:graphic-properties" $ if mt == InlineMath then
+                                                  [("style:vertical-pos", "middle")
+                                                  ,("style:vertical-rel", "text")]
+                                                else
+                                                  [("style:vertical-pos",   "middle")
+                                                  ,("style:vertical-rel",   "paragraph-content")
+                                                  ,("style:horizontal-pos", "center")
+                                                  ,("style:horizontal-rel", "paragraph-content")
+                                                  ,("style:wrap",           "none")]
+
 inHeaderTags :: PandocMonad m => Int -> Doc -> OD m Doc
 inHeaderTags i d =
   return $ inTags False "text:h" [ ("text:style-name", "Heading_20_" ++ show i)
@@ -211,7 +229,7 @@ writeOpenDocument opts (Pandoc meta blocks) = do
                   meta
            b <- render' `fmap` blocksToOpenDocument opts blocks
            return (b, m)
-  let styles   = stTableStyles s ++ stParaStyles s ++
+  let styles   = stTableStyles s ++ stParaStyles s ++ formulaStyles ++
                      map snd (sortBy (flip (comparing fst)) (
                         Map.elems (stTextStyles s)))
       listStyle (n,l) = inTags True "text:list-style"