fdo#44073: ODF export: fix layout grid invalid ODF

The following 3 attributes have been added in ODF 1.2, so don't write
them into ODF 1.1 files:

style:layout-grid-base-width 20.297
style:layout-grid-snap-to 20.305
style:layout-grid-standard-mode 20.306

Additionally, style:layout-grid-snap-to was written wrongly as
style:layout-grid-snap-to-characters, which does not exist in any ODF
spec.
For backward compatibility with previous OOo/LO versions, write the
wrong attribute in addition to the correct one in ODF extended mode,
even though validators complain about it (consider removing that
some years from now).

xmloff/inc/xmloff/PageMasterStyleMap.hxx

@@ -102,6 +102,7 @@
 #define CTF_PM_STANDARD_MODE            (XML_PM_CTF_START + 0x0055)
 #define CTP_PM_GRID_BASE_WIDTH          (XML_PM_CTF_START + 0x0056)
 #define CTP_PM_GRID_SNAP_TO_CHARS       (XML_PM_CTF_START + 0x0057)
+#define CTP_PM_GRID_SNAP_TO             (XML_PM_CTF_START + 0x0058)
 // header
 #define CTF_PM_HEADERBORDERALL          (CTF_PM_HEADERFLAG|CTF_PM_BORDERALL)
 #define CTF_PM_HEADERBORDERTOP          (CTF_PM_HEADERFLAG|CTF_PM_BORDERTOP)

xmloff/source/style/PageMasterExportPropMapper.cxx

@@ -360,7 +360,9 @@ void XMLPageMasterExportPropMapper::ContextFilter(
     XMLPropertyState*       pPMScaleToY         = NULL;
     XMLPropertyState*       pPMStandardMode     = NULL;
     XMLPropertyState*       pPMGridBaseWidth    = NULL;
+    // same as pPMGridSnapTo but for backward compatibility only
     XMLPropertyState*       pPMGridSnapToChars  = NULL;
+    XMLPropertyState*       pPMGridSnapTo       = NULL;
 
     XMLPropertyState*       pPrint              = NULL;
 
@@ -421,6 +423,7 @@ void XMLPageMasterExportPropMapper::ContextFilter(
             case CTF_PM_STANDARD_MODE:      pPMStandardMode     = pProp;    break;
             case CTP_PM_GRID_BASE_WIDTH:        pPMGridBaseWidth    = pProp;    break;
             case CTP_PM_GRID_SNAP_TO_CHARS:     pPMGridSnapToChars  = pProp;    break;
+            case CTP_PM_GRID_SNAP_TO:       pPMGridSnapTo = pProp;    break;
         }
         if (nPrintId == CTF_PM_PRINTMASK)
         {
@@ -436,6 +439,10 @@ void XMLPageMasterExportPropMapper::ContextFilter(
             lcl_RemoveState(pPMGridBaseWidth);
         if( pPMGridSnapToChars )
             lcl_RemoveState(pPMGridSnapToChars);
+        if (pPMGridSnapTo)
+        {
+            lcl_RemoveState(pPMGridSnapTo);
+        }
     }
 
     if( pPMGridBaseWidth && pPMStandardMode )

xmloff/source/style/PageMasterStyleMap.cxx

@@ -33,11 +33,15 @@
 
 using namespace ::xmloff::token;
 
-#define _MAP(name,prefix,token,type,context)  { name, sizeof(name)-1, prefix, token, type, context, SvtSaveOptions::ODFVER_010 }
+#define MAP(name,prefix,token,type,context,version)  { name, sizeof(name)-1, prefix, token, type, context, version }
 #define PLMAP(name,prefix,token,type,context) \
-        _MAP(name,prefix,token,type|XML_TYPE_PROP_PAGE_LAYOUT,context)
+        MAP(name,prefix,token,type|XML_TYPE_PROP_PAGE_LAYOUT,context, SvtSaveOptions::ODFVER_010)
+#define PLMAP_12(name,prefix,token,type,context) \
+        MAP(name,prefix,token,type|XML_TYPE_PROP_PAGE_LAYOUT,context, SvtSaveOptions::ODFVER_012)
+#define PLMAP_EX(name,prefix,token,type,context) \
+        MAP(name,prefix,token,type|XML_TYPE_PROP_PAGE_LAYOUT,context, SvtSaveOptions::ODFVER_LATEST)
 #define HFMAP(name,prefix,token,type,context) \
-        _MAP(name,prefix,token,type|XML_TYPE_PROP_HEADER_FOOTER,context)
+        MAP(name,prefix,token,type|XML_TYPE_PROP_HEADER_FOOTER,context, SvtSaveOptions::ODFVER_010)
 
 //______________________________________________________________________________
 
@@ -108,11 +112,14 @@ const XMLPropertyMapEntry aXMLPageMasterStyleMap[] =
     PLMAP( "GridDisplay", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_DISPLAY, XML_TYPE_BOOL, 0 ),
 
     //text grid enhancement for better CJK support
-    PLMAP( "GridBaseWidth", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_BASE_WIDTH, XML_TYPE_MEASURE, CTP_PM_GRID_BASE_WIDTH ),
-    PLMAP( "GridSnapToChars", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_SNAP_TO, XML_TYPE_BOOL, CTP_PM_GRID_SNAP_TO_CHARS ),
-    PLMAP( "GridSnapToChars", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_SNAP_TO_CHARS, XML_TYPE_BOOL, CTP_PM_GRID_SNAP_TO_CHARS ),
+    PLMAP_12( "GridBaseWidth", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_BASE_WIDTH, XML_TYPE_MEASURE, CTP_PM_GRID_BASE_WIDTH ),
+    PLMAP_12( "GridSnapToChars", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_SNAP_TO, XML_TYPE_BOOL, CTP_PM_GRID_SNAP_TO ),
+    // fdo#44073: layout-grid-snap-to-characters does not exist in ODF:
+    // write this in extended mode purely for backward compatibility so old
+    // OOo/LO versions that don't understand layout-grid-snap-to read it
+    PLMAP_EX( "GridSnapToChars", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_SNAP_TO_CHARS, XML_TYPE_BOOL, CTP_PM_GRID_SNAP_TO_CHARS ),
       //export as a default attribute
-    PLMAP( "StandardPageMode", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_STANDARD_MODE, XML_TYPE_BOOL|MID_FLAG_DEFAULT_ITEM_EXPORT, CTF_PM_STANDARD_MODE ),
+    PLMAP_12( "StandardPageMode", XML_NAMESPACE_STYLE, XML_LAYOUT_GRID_STANDARD_MODE, XML_TYPE_BOOL|MID_FLAG_DEFAULT_ITEM_EXPORT, CTF_PM_STANDARD_MODE ),
 
     PLMAP( "UserDefinedAttributes", XML_NAMESPACE_TEXT,     XML_XMLNS,                      XML_TYPE_ATTRIBUTE_CONTAINER | MID_FLAG_SPECIAL_ITEM, 0 ),