Add page offset option to ODT build (#1505)

novelwriter/core/buildsettings.py

@@ -80,6 +80,7 @@ SETTINGS_TEMPLATE = {
     "format.rightMargin":     (float, 2.0),
     "odt.addColours":         (bool, True),
     "odt.pageHeader":         (str, nwHeadFmt.ODT_AUTO),
+    "odt.pageCountOffset":    (int, 0),
     "html.addStyles":         (bool, True),
 }
 
@@ -127,6 +128,7 @@ SETTINGS_LABELS = {
     "odt":                    QT_TRANSLATE_NOOP("Builds", "Open Document (.odt)"),
     "odt.addColours":         QT_TRANSLATE_NOOP("Builds", "Add Highlight Colours"),
     "odt.pageHeader":         QT_TRANSLATE_NOOP("Builds", "Page Header"),
+    "odt.pageCountOffset":    QT_TRANSLATE_NOOP("Builds", "Page Counter Offset"),
 
     "html":                   QT_TRANSLATE_NOOP("Builds", "HTML (.html)"),
     "html.addStyles":         QT_TRANSLATE_NOOP("Builds", "Add CSS Styles"),

novelwriter/core/docbuild.py

@@ -284,7 +284,9 @@ class NWBuildDocument:
         if isinstance(bldObj, ToOdt):
             bldObj.setColourHeaders(self._build.getBool("odt.addColours"))
             bldObj.setLanguage(self._project.data.language)
-            bldObj.setHeaderFormat(self._build.getStr("odt.pageHeader"))
+            bldObj.setHeaderFormat(
+                self._build.getStr("odt.pageHeader"), self._build.getInt("odt.pageCountOffset")
+            )
 
             scale = nwLabels.UNIT_SCALE.get(self._build.getStr("format.pageUnit"), 1.0)
             pW, pH = nwLabels.PAPER_SIZE.get(self._build.getStr("format.pageSize"), (-1.0, -1.0))

novelwriter/core/toodt.py

@@ -137,6 +137,7 @@ class ToOdt(Tokenizer):
         self._textFixed    = False
         self._colourHead   = False
         self._headerFormat = ""
+        self._pageOffset   = 0
 
         # Internal
         self._fontFamily   = "'Liberation Serif'"
@@ -222,9 +223,10 @@ class ToOdt(Tokenizer):
         self._mDocRight  = f"{right/10.0:.3f}cm"
         return
 
-    def setHeaderFormat(self, format: str) -> None:
+    def setHeaderFormat(self, format: str, offset: int) -> None:
         """Set the document header format."""
         self._headerFormat = format.strip()
+        self._pageOffset = offset
         return
 
     ##
@@ -1023,9 +1025,10 @@ class ToOdt(Tokenizer):
             })
             xPar.text = pre
             if page:
-                xTail = ET.SubElement(xPar, _mkTag("text", "page-number"), attrib={
-                    _mkTag("text", "select-page"): "current"
-                })
+                attrib = {_mkTag("text", "select-page"): "current"}
+                if self._pageOffset > 0:
+                    attrib = {_mkTag("text", "page-adjust"): str(0 - self._pageOffset)}
+                xTail = ET.SubElement(xPar, _mkTag("text", "page-number"), attrib=attrib)
                 xTail.text = "2"
                 xTail.tail = post
             else: