Modify newIndirect to set QPDFObjectHandle::obj

m-holger
1 parent 16841bec
Showing 4 changed files with 39 additions and 19 deletions
include/qpdf/QPDF.hh
include/qpdf/QPDFObjectHandle.hh
libqpdf/QPDF.cc
libqpdf/QPDFObjectHandle.cc
@@ -1180,6 +1180,8 @@ class QPDF
     void stopOnError(std::string const& message);
     QPDFObjectHandle reserveObjectIfNotExists(QPDFObjGen const& og);
     QPDFObjectHandle reserveStream(QPDFObjGen const& og);
+    QPDFObjectHandle
+    newIndirect(QPDFObjGen const&, std::shared_ptr<QPDFObject> const&);
  
     // Calls finish() on the pipeline when done but does not delete it
     bool pipeStreamData(
@@ -1443,9 +1443,12 @@ class QPDFObjectHandle
  
       private:
         static QPDFObjectHandle
-        newIndirect(QPDF* qpdf, QPDFObjGen const& og)
+        newIndirect(
+            QPDF* qpdf,
+            QPDFObjGen const& og,
+            std::shared_ptr<QPDFObject> const& obj)
         {
-            return QPDFObjectHandle::newIndirect(qpdf, og);
+            return QPDFObjectHandle(qpdf, og, obj);
         }
         static QPDFObjectHandle
         newStream(
@@ -1557,7 +1560,16 @@ class QPDFObjectHandle
     bool isImage(bool exclude_imagemask = true);
  
   private:
-    QPDFObjectHandle(QPDF*, QPDFObjGen const& og);
+    QPDFObjectHandle(
+        QPDF* qpdf,
+        QPDFObjGen const& og,
+        std::shared_ptr<QPDFObject> const& obj) :
+        initialized(true),
+        qpdf(qpdf),
+        og(og),
+        obj(obj)
+    {
+    }
     QPDFObjectHandle(std::shared_ptr<QPDFObject> const&);
  
     // Private object factory methods
@@ -1463,8 +1463,7 @@ QPDF::getAllObjects()
     fixDanglingReferences(true);
     std::vector<QPDFObjectHandle> result;
     for (auto const& iter: this->m->obj_cache) {
-        QPDFObjGen const& og = iter.first;
-        result.push_back(getObjectByObjGen(og));
+        result.push_back(newIndirect(iter.first, iter.second.object));
     }
     return result;
 }
@@ -2129,6 +2128,15 @@ QPDF::resolveObjectsInStream(int obj_stream_number)
 }
  
 QPDFObjectHandle
+QPDF::newIndirect(QPDFObjGen const& og, std::shared_ptr<QPDFObject> const& obj)
+{
+    if (!obj->hasDescription()) {
+        obj->setDescription(this, "object " + og.unparse(' '));
+    }
+    return QPDFObjectHandle::Factory::newIndirect(this, og, obj);
+}
+
+QPDFObjectHandle
 QPDF::makeIndirectObject(QPDFObjectHandle oh)
 {
     int max_objid = toI(getObjectCount());
@@ -2137,9 +2145,9 @@ QPDF::makeIndirectObject(QPDFObjectHandle oh)
             "max object id is too high to create new objects");
     }
     QPDFObjGen next(max_objid + 1, 0);
-    this->m->obj_cache[next] =
+    m->obj_cache[next] =
         ObjCache(QPDFObjectHandle::ObjAccessor::getObject(oh), -1, -1);
-    return QPDFObjectHandle::Factory::newIndirect(this, next);
+    return newIndirect(next, m->obj_cache[next].object);
 }
  
 QPDFObjectHandle
@@ -2148,8 +2156,10 @@ QPDF::reserveObjectIfNotExists(QPDFObjGen const&amp; og)
     if ((!m->obj_cache.count(og)) && (!m->xref_table.count(og))) {
         resolve(og);
         m->obj_cache[og].object = QPDF_Reserved::create();
+        return newIndirect(og, m->obj_cache[og].object);
+    } else {
+        return getObject(og);
     }
-    return getObject(og);
 }
  
 QPDFObjectHandle
@@ -2162,7 +2172,8 @@ QPDF::reserveStream(QPDFObjGen const&amp; og)
 QPDFObjectHandle
 QPDF::getObject(QPDFObjGen const& og)
 {
-    return QPDFObjectHandle::Factory::newIndirect(this, og);
+    auto obj = (og.getObj() != 0) ? resolve(og) : QPDF_Null::create();
+    return newIndirect(og, obj);
 }
  
 QPDFObjectHandle
@@ -21,6 +21,7 @@
 #include <qpdf/QPDF_Reserved.hh>
 #include <qpdf/QPDF_Stream.hh>
 #include <qpdf/QPDF_String.hh>
+#include <qpdf/QPDF_Unresolved.hh>
 #include <qpdf/SparseOHArray.hh>
  
 #include <qpdf/QIntC.hh>
@@ -240,13 +241,6 @@ QPDFObjectHandle::QPDFObjectHandle() :
 {
 }
  
-QPDFObjectHandle::QPDFObjectHandle(QPDF* qpdf, QPDFObjGen const& og) :
-    initialized(true),
-    qpdf(qpdf),
-    og(og)
-{
-}
-
 QPDFObjectHandle::QPDFObjectHandle(std::shared_ptr<QPDFObject> const& data) :
     initialized(true),
     qpdf(nullptr),
@@ -1953,7 +1947,7 @@ QPDFObjectHandle::newIndirect(QPDF* qpdf, QPDFObjGen const&amp; og)
         return newNull();
     }
  
-    return QPDFObjectHandle(qpdf, og);
+    return QPDFObjectHandle(qpdf, og, QPDF_Unresolved::create());
 }
  
 QPDFObjectHandle
@@ -2553,10 +2547,11 @@ QPDFObjectHandle::dereference()
     if (!this->initialized) {
         return false;
     }
-    if (this->obj() == nullptr ||
+    if ((this->obj->getTypeCode() == QPDFObject::ot_unresolved) ||
         (getObjectID() &&
          QPDF::Resolver::objectChanged(this->qpdf, getObjGen(), this->obj))) {
-        obj = QPDF::Resolver::resolve(this->qpdf, getObjGen());
+        this->obj = QPDF::Resolver::resolve(this->qpdf, getObjGen());
+
     }
     return true;
 }