Writerperfect: Improve list code

Change-Id: I21fc40a0cb16e4f8295477cc2db50a58bc7287ea
(cherry picked from commit f3929090a0b12018b629d0d65b89d17d0afdc7e3)

Signed-off-by: Fridrich Štrba <fridrich.strba@bluewin.ch>

3 files changed, 44 insertions, 54 deletions

diff --git a/writerperfect/source/filter/ListStyle.cxx b/writerperfect/source/filter/ListStyle.cxx
index cf5900afdcbb..06255705fdc8 100644
--- a/writerperfect/source/filter/ListStyle.cxx
+++ b/writerperfect/source/filter/ListStyle.cxx
@@ -19,14 +19,6 @@ OrderedListLevelStyle::OrderedListLevelStyle(const WPXPropertyList &xPropList) :
 {
 }
 
-void OrderedListStyle::updateListLevel(const int iLevel, const WPXPropertyList &xPropList)
-{
-    if (iLevel < 0)
-        return;
-    if (!isListLevelDefined(iLevel))
-        setListLevel(iLevel, new OrderedListLevelStyle(xPropList));
-}
-
 void OrderedListLevelStyle::write(OdfDocumentHandler *pHandler, int iLevel) const
 {
     WPXString sLevel;
@@ -79,14 +71,6 @@ UnorderedListLevelStyle::UnorderedListLevelStyle(const WPXPropertyList &xPropLis
 {
 }
 
-void UnorderedListStyle::updateListLevel(const int iLevel, const WPXPropertyList &xPropList)
-{
-    if (iLevel < 0)
-        return;
-    if (!isListLevelDefined(iLevel))
-        setListLevel(iLevel, new UnorderedListLevelStyle(xPropList));
-}
-
 void UnorderedListLevelStyle::write(OdfDocumentHandler *pHandler, int iLevel) const
 {
     WPXString sLevel;
@@ -163,6 +147,19 @@ void ListStyle::setListLevel(int iLevel, ListLevelStyle *iListLevelStyle)
         mppListLevels[iLevel] = iListLevelStyle;
 }
 
+void ListStyle::updateListLevel(const int iLevel, const WPXPropertyList &xPropList, bool ordered)
+{
+    if (iLevel < 0)
+        return;
+    if (!isListLevelDefined(iLevel))
+    {
+        if (ordered)
+            setListLevel(iLevel, new OrderedListLevelStyle(xPropList));
+        else
+            setListLevel(iLevel, new UnorderedListLevelStyle(xPropList));
+    }
+}
+
 void ListStyle::write(OdfDocumentHandler *pHandler) const
 {
     TagOpenElement listStyleOpenElement("text:list-style");
diff --git a/writerperfect/source/filter/ListStyle.hxx b/writerperfect/source/filter/ListStyle.hxx
index 44d090d63d92..53ee67ed33b4 100644
--- a/writerperfect/source/filter/ListStyle.hxx
+++ b/writerperfect/source/filter/ListStyle.hxx
@@ -48,7 +48,7 @@ class ListStyle : public Style
 public:
     ListStyle(const char *psName, const int iListID);
     virtual ~ListStyle();
-    virtual void updateListLevel(const int iLevel, const WPXPropertyList &xPropList) = 0;
+    void updateListLevel(const int iLevel, const WPXPropertyList &xPropList, bool ordered);
     virtual void write(OdfDocumentHandler *pHandler) const;
     int getListID()
     {
@@ -64,19 +64,6 @@ private:
     const int miListID;
 };
 
-class OrderedListStyle : public ListStyle
-{
-public:
-    OrderedListStyle(const char *psName, const int iListID) : ListStyle(psName, iListID) {}
-    void updateListLevel(const int iLevel, const WPXPropertyList &xPropList);
-};
-
-class UnorderedListStyle : public ListStyle
-{
-public:
-    UnorderedListStyle(const char *psName, const int iListID) : ListStyle(psName, iListID) {}
-    void updateListLevel(const int iLevel, const WPXPropertyList &xPropList);
-};
 #endif
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/writerperfect/source/filter/OdtGenerator.cxx b/writerperfect/source/filter/OdtGenerator.cxx
index 9ee2f67d9c38..92ec8cc1ec87 100644
--- a/writerperfect/source/filter/OdtGenerator.cxx
+++ b/writerperfect/source/filter/OdtGenerator.cxx
@@ -640,15 +640,15 @@ void OdtGenerator::defineOrderedListLevel(const WPXPropertyList &propList)
     if (propList["libwpd:id"])
         id = propList["libwpd:id"]->getInt();
 
-    OrderedListStyle *pOrderedListStyle = 0;
+    ListStyle *pListStyle = 0;
     if (mpImpl->mWriterListStates.top().mpCurrentListStyle && mpImpl->mWriterListStates.top().mpCurrentListStyle->getListID() == id)
-        pOrderedListStyle = static_cast<OrderedListStyle *>(mpImpl->mWriterListStates.top().mpCurrentListStyle); // FIXME: using a dynamic cast here causes oo to crash?!
+        pListStyle = mpImpl->mWriterListStates.top().mpCurrentListStyle;
 
     // this rather appalling conditional makes sure we only start a new list (rather than continue an old
     // one) if: (1) we have no prior list OR (2) the prior list is actually definitively different
     // from the list that is just being defined (listIDs differ) OR (3) we can tell that the user actually
     // is starting a new list at level 1 (and only level 1)
-    if (pOrderedListStyle == 0 || pOrderedListStyle->getListID() != id  ||
+    if (pListStyle == 0 || pListStyle->getListID() != id  ||
             (propList["libwpd:level"] && propList["libwpd:level"]->getInt()==1 &&
              (propList["text:start-value"] && propList["text:start-value"]->getInt() != int(mpImpl->mWriterListStates.top().miLastListNumber+1))))
     {
@@ -656,9 +656,9 @@ void OdtGenerator::defineOrderedListLevel(const WPXPropertyList &propList)
         WPXString sName;
         sName.sprintf("OL%i", mpImpl->miNumListStyles);
         mpImpl->miNumListStyles++;
-        pOrderedListStyle = new OrderedListStyle(sName.cstr(), id);
-        mpImpl->mListStyles.push_back(pOrderedListStyle);
-        mpImpl->mWriterListStates.top().mpCurrentListStyle = pOrderedListStyle;
+        pListStyle = new ListStyle(sName.cstr(), id);
+        mpImpl->mListStyles.push_back(pListStyle);
+        mpImpl->mWriterListStates.top().mpCurrentListStyle = pListStyle;
         mpImpl->mWriterListStates.top().mbListContinueNumbering = false;
         mpImpl->mWriterListStates.top().miLastListNumber = 0;
     }
@@ -668,10 +668,10 @@ void OdtGenerator::defineOrderedListLevel(const WPXPropertyList &propList)
     // Iterate through ALL list styles with the same WordPerfect list id and define a level if it is not already defined
     // This solves certain problems with lists that start and finish without reaching certain levels and then begin again
     // and reach those levels. See gradguide0405_PC.wpd in the regression suite
-    for (std::vector<ListStyle *>::iterator iterOrderedListStyles = mpImpl->mListStyles.begin(); iterOrderedListStyles != mpImpl->mListStyles.end(); ++iterOrderedListStyles)
+    for (std::vector<ListStyle *>::iterator iterListStyles = mpImpl->mListStyles.begin(); iterListStyles != mpImpl->mListStyles.end(); ++iterListStyles)
     {
-        if ((* iterOrderedListStyles) && (* iterOrderedListStyles)->getListID() == id && propList["libwpd:level"])
-            (* iterOrderedListStyles)->updateListLevel((propList["libwpd:level"]->getInt() - 1), propList);
+        if ((* iterListStyles) && (* iterListStyles)->getListID() == id && propList["libwpd:level"])
+            (* iterListStyles)->updateListLevel((propList["libwpd:level"]->getInt() - 1), propList, true);
     }
 }
 
@@ -681,26 +681,26 @@ void OdtGenerator::defineUnorderedListLevel(const WPXPropertyList &propList)
     if (propList["libwpd:id"])
         id = propList["libwpd:id"]->getInt();
 
-    UnorderedListStyle *pUnorderedListStyle = 0;
+    ListStyle *pListStyle = 0;
     if (mpImpl->mWriterListStates.top().mpCurrentListStyle && mpImpl->mWriterListStates.top().mpCurrentListStyle->getListID() == id)
-        pUnorderedListStyle = static_cast<UnorderedListStyle *>(mpImpl->mWriterListStates.top().mpCurrentListStyle); // FIXME: using a dynamic cast here causes oo to crash?!
+        pListStyle = mpImpl->mWriterListStates.top().mpCurrentListStyle;
 
-    if (pUnorderedListStyle == 0)
+    if (pListStyle == 0)
     {
         WRITER_DEBUG_MSG(("Attempting to create a new unordered list style (listid: %i)\n", id));
         WPXString sName;
         sName.sprintf("UL%i", mpImpl->miNumListStyles);
         mpImpl->miNumListStyles++;
-        pUnorderedListStyle = new UnorderedListStyle(sName.cstr(), id);
-        mpImpl->mListStyles.push_back(pUnorderedListStyle);
-        mpImpl->mWriterListStates.top().mpCurrentListStyle = pUnorderedListStyle;
+        pListStyle = new ListStyle(sName.cstr(), id);
+        mpImpl->mListStyles.push_back(pListStyle);
+        mpImpl->mWriterListStates.top().mpCurrentListStyle = pListStyle;
     }
 
     // See comment in OdtGenerator::defineOrderedListLevel
-    for (std::vector<ListStyle *>::iterator iterUnorderedListStyles = mpImpl->mListStyles.begin(); iterUnorderedListStyles != mpImpl->mListStyles.end(); ++iterUnorderedListStyles)
+    for (std::vector<ListStyle *>::iterator iterListStyles = mpImpl->mListStyles.begin(); iterListStyles != mpImpl->mListStyles.end(); ++iterListStyles)
     {
-        if ((* iterUnorderedListStyles) && (* iterUnorderedListStyles)->getListID() == id && propList["libwpd:level"])
-            (* iterUnorderedListStyles)->updateListLevel((propList["libwpd:level"]->getInt() - 1), propList);
+        if ((* iterListStyles) && (* iterListStyles)->getListID() == id && propList["libwpd:level"])
+            (* iterListStyles)->updateListLevel((propList["libwpd:level"]->getInt() - 1), propList, false);
     }
 }
 
@@ -747,7 +747,11 @@ void OdtGeneratorPrivate::_openListLevel(TagOpenElement *pListLevelOpenElement)
     mWriterListStates.top().mbListElementOpened.push(false);
     if (mWriterListStates.top().mbListElementOpened.size() == 1)
     {
-        pListLevelOpenElement->addAttribute("text:style-name", mWriterListStates.top().mpCurrentListStyle->getName());
+        // add a sanity check ( to avoid a crash if mpCurrentListStyle is NULL)
+        if (mWriterListStates.top().mpCurrentListStyle)
+        {
+            pListLevelOpenElement->addAttribute("text:style-name", mWriterListStates.top().mpCurrentListStyle->getName());
+        }
     }
 }
 
@@ -763,6 +767,12 @@ void OdtGenerator::closeUnorderedListLevel()
 
 void OdtGeneratorPrivate::_closeListLevel()
 {
+    if (mWriterListStates.top().mbListElementOpened.empty())
+    {
+        // this implies that openListLevel was not called, so it is better to stop here
+        WRITER_DEBUG_MSG(("attempting to close an unexisting level\n"));
+        return;
+    }
     if (mWriterListStates.top().mbListElementOpened.top())
     {
         mpCurrentContentElements->push_back(new TagCloseElement("text:list-item"));
@@ -770,11 +780,7 @@ void OdtGeneratorPrivate::_closeListLevel()
     }
 
     mpCurrentContentElements->push_back(new TagCloseElement("text:list"));
-
-    if (!mWriterListStates.top().mbListElementOpened.empty())
-    {
-        mWriterListStates.top().mbListElementOpened.pop();
-    }
+    mWriterListStates.top().mbListElementOpened.pop();
 }
 
 void OdtGenerator::openListElement(const WPXPropertyList &propList, const WPXPropertyListVector &tabStops)