From 8ee4a60dcfd299331ba30992fc324aeeeba694ab Mon Sep 17 00:00:00 2001
From: Olivier Tilloy <olivier@tilloy.net>
Date: Tue, 14 Apr 2009 09:36:26 +0200
Subject: Really delete all repetitions of an IPTC tag.

---
 src/exiv2wrapper.cpp        | 41 ++++++++++++++++++++---------------------
 src/exiv2wrapper.hpp        | 10 +++-------
 src/exiv2wrapper_python.cpp |  4 +---
 3 files changed, 24 insertions(+), 31 deletions(-)

diff --git a/src/exiv2wrapper.cpp b/src/exiv2wrapper.cpp
index d29c332..18eff7d 100644
--- a/src/exiv2wrapper.cpp
+++ b/src/exiv2wrapper.cpp
@@ -299,30 +299,29 @@ void Image::setIptcTagValues(std::string key, boost::python::tuple values)
     }
 }
 
-/*void Image::deleteIptcTag(std::string key, unsigned int index=0)
+void Image::deleteIptcTag(std::string key)
 {
-    if(_dataRead)
+    if (!_dataRead)
     {
-        unsigned int indexCounter = index;
-        Exiv2::IptcKey iptcKey = Exiv2::IptcKey(key);
-        Exiv2::IptcMetadata::iterator dataIterator = _iptcData.findKey(iptcKey);
-        while ((indexCounter > 0) && (dataIterator != _iptcData.end()))
-        {
-            dataIterator = std::find_if(++dataIterator, _iptcData.end(),
-                Exiv2::FindMetadatumById::FindMetadatumById(iptcKey.tag(), iptcKey.record()));
-            --indexCounter;
-        }
-        if (dataIterator != _iptcData.end())
-        {
-            // The tag at given index already exists, delete it
-            _iptcData.erase(dataIterator);
-        }
-        else
-            throw Exiv2::Error(KEY_NOT_FOUND, key);
-    }
-    else
         throw Exiv2::Error(METADATA_NOT_READ);
-}*/
+    }
+
+    Exiv2::IptcKey iptcKey = Exiv2::IptcKey(key);
+    Exiv2::IptcMetadata::iterator dataIterator = _iptcData.findKey(iptcKey);
+
+    if (dataIterator == _iptcData.end())
+    {
+        throw Exiv2::Error(KEY_NOT_FOUND, key);
+    }
+
+    while (dataIterator != _iptcData.end())
+    {
+        _iptcData.erase(dataIterator);
+        dataIterator = std::find_if(++dataIterator, _iptcData.end(),
+                Exiv2::FindMetadatumById::FindMetadatumById(iptcKey.tag(),
+                                                            iptcKey.record()));
+    }
+}
 
 boost::python::list Image::xmpKeys()
 {
diff --git a/src/exiv2wrapper.hpp b/src/exiv2wrapper.hpp
index 3bc5314..3dfd850 100644
--- a/src/exiv2wrapper.hpp
+++ b/src/exiv2wrapper.hpp
@@ -104,13 +104,9 @@ public:
     //void setIptcTag(std::string key, std::string value, unsigned int index);
     void setIptcTagValues(std::string key, boost::python::tuple values);
 
-    // Delete the required IPTC tag.
-    // If the key references a repeatable tag, the parameter index (starting
-    // from 0 like a list index) is used to determine which of the
-    // repetitions is to be deleted.
-    // Throw an exception if the tag was not set or if the index is greater
-    // than the highest existing one.
-    //void deleteIptcTag(std::string key, unsigned int index);
+    // Delete (all the repetitions of) the required IPTC tag.
+    // Throw an exception if the tag was not set.
+    void deleteIptcTag(std::string key);
 
     boost::python::list xmpKeys();
 
diff --git a/src/exiv2wrapper_python.cpp b/src/exiv2wrapper_python.cpp
index 238e39b..2be9843 100644
--- a/src/exiv2wrapper_python.cpp
+++ b/src/exiv2wrapper_python.cpp
@@ -45,8 +45,6 @@ BOOST_PYTHON_MODULE(libexiv2python)
 
     register_exception_translator<Exiv2::Error>(&translateExiv2Error);
 
-    // Exported method names prefixed by "_Image__" are going to be "private"
-    // and are not meant to be used directly
     class_<Image>("Image", init<std::string>())
 
         .def("readMetadata", &Image::readMetadata)
@@ -60,7 +58,7 @@ BOOST_PYTHON_MODULE(libexiv2python)
         .def("iptcKeys", &Image::iptcKeys)
         .def("getIptcTag", &Image::getIptcTag)
         .def("setIptcTagValues", &Image::setIptcTagValues)
-//        .def("deleteIptcTag", &Image::deleteIptcTag)
+        .def("deleteIptcTag", &Image::deleteIptcTag)
 
         .def("xmpKeys", &Image::xmpKeys)
         .def("getXmpTag", &Image::getXmpTag)
-- 
cgit