Added two methods to class Image, isExifTagSet() and isIptcTagSet(), to determine whether a tag is set.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/libpyexiv2.cpp b/src/libpyexiv2.cpp
index f77b6c7..6eebbdd 100644
--- a/src/libpyexiv2.cpp
+++ b/src/libpyexiv2.cpp
@@ -88,6 +88,18 @@ namespace LibPyExiv2
 			throw Exiv2::Error(METADATA_NOT_READ);
 	}
 
+	bool Image::isExifTagSet(std::string key)
+	{
+		if(_dataRead)
+		{
+			Exiv2::ExifKey exifKey = Exiv2::ExifKey(key);
+			Exiv2::ExifMetadata::iterator i = _exifData.findKey(exifKey);
+			return (i != _exifData.end());
+		}
+		else
+			throw Exiv2::Error(METADATA_NOT_READ);
+	}
+
 	boost::python::tuple Image::getExifTag(std::string key)
 	{
 		if(_dataRead)
@@ -192,6 +204,18 @@ namespace LibPyExiv2
 			throw Exiv2::Error(METADATA_NOT_READ);
 	}
 
+	bool Image::isIptcTagSet(std::string key)
+	{
+		if(_dataRead)
+		{
+			Exiv2::IptcKey iptcKey = Exiv2::IptcKey(key);
+			Exiv2::IptcMetadata::iterator i = _iptcData.findKey(iptcKey);
+			return (i != _iptcData.end());
+		}
+		else
+			throw Exiv2::Error(METADATA_NOT_READ);
+	}
+
 	boost::python::tuple Image::getIptcTag(std::string key)
 	{
 		if(_dataRead)