From d1ebe30ff63a2f79da041e2d0c4718523db1beda Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Thu, 21 Jun 2012 16:14:34 -0400
Subject: Add QPDFObjectHandle::shallowCopy()

---
 libqpdf/QPDFObjectHandle.cc | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'libqpdf')

diff --git a/libqpdf/QPDFObjectHandle.cc b/libqpdf/QPDFObjectHandle.cc
index 53d9414c..4e28c405 100644
--- a/libqpdf/QPDFObjectHandle.cc
+++ b/libqpdf/QPDFObjectHandle.cc
@@ -663,6 +663,38 @@ QPDFObjectHandle::newStream(QPDF* qpdf, PointerHolder<Buffer> data)
     return result;
 }
 
+QPDFObjectHandle
+QPDFObjectHandle::shallowCopy()
+{
+    assertInitialized();
+
+    if (isStream())
+    {
+	QTC::TC("qpdf", "QPDFObjectHandle ERR shallow copy stream");
+	throw std::runtime_error(
+	    "attempt to make a shallow copy of a stream");
+    }
+
+    QPDFObjectHandle new_obj;
+    if (isArray())
+    {
+	QTC::TC("qpdf", "QPDFObjectHandle shallow copy array");
+	new_obj = newArray(getArrayAsVector());
+    }
+    else if (isDictionary())
+    {
+	QTC::TC("qpdf", "QPDFObjectHandle shallow copy dictionary");
+        new_obj = newDictionary(getDictAsMap());
+    }
+    else
+    {
+	QTC::TC("qpdf", "QPDFObjectHandle shallow copy scalar");
+        new_obj = *this;
+    }
+
+    return new_obj;
+}
+
 void
 QPDFObjectHandle::makeDirectInternal(std::set<int>& visited)
 {
-- 
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