Move calculations from QPDF::getObjectCount to Objects::next_id

m-holger
1 parent 113ea4e7
Showing 3 changed files with 8 additions and 8 deletions
include/qpdf/QPDF.hh
libqpdf/QPDF.cc
libqpdf/QPDF_objects.cc
@@ -645,7 +645,7 @@ class QPDF
     QPDF_DLL
     void fixDanglingReferences(bool force = false);
  
-    // Return the approximate number of indirect objects. It is/ approximate because not all objects
+    // Return the approximate number of indirect objects. It is approximate because not all objects
     // in the file are preserved in all cases, and gaps in object numbering are not preserved.
     QPDF_DLL
     size_t getObjectCount();
@@ -492,12 +492,7 @@ QPDF::getObjectCount()
     // This method returns the next available indirect object number. makeIndirectObject uses it for
     // this purpose. After fixDanglingReferences is called, all objects in the xref table will also
     // be in obj_cache.
-    fixDanglingReferences();
-    QPDFObjGen og;
-    if (!m->objects.obj_cache.empty()) {
-        og = (*(m->objects.obj_cache.rbegin())).first;
-    }
-    return toS(og.getObj());
+    return toS(m->objects.next_id().getObj() - 1);
 }
  
 std::vector<QPDFObjectHandle>
@@ -1712,7 +1712,12 @@ Objects::unresolved(QPDFObjGen og)
 QPDFObjGen
 Objects::next_id()
 {
-    int max_objid = toI(qpdf.getObjectCount());
+    qpdf.fixDanglingReferences();
+    QPDFObjGen og;
+    if (!obj_cache.empty()) {
+        og = (*(m->objects.obj_cache.rbegin())).first;
+    }
+    int max_objid = og.getObj();
     if (max_objid == std::numeric_limits<int>::max()) {
         throw std::range_error("max object id is too high to create new objects");
     }