From 049df2489a48089a8b13d7a329c136d4c2ac680d Mon Sep 17 00:00:00 2001
From: Andreas Huggel <ahuggel@gmx.net>
Date: Thu, 12 Aug 2010 16:40:08 +0000
Subject: [PATCH] #719: Added new ExifTags::tagList() function which returns
 the taglist for an Exif group.

---
 src/tags.cpp | 7 +++++++
 src/tags.hpp | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/src/tags.cpp b/src/tags.cpp
index 37850aa1..3f2e7c89 100644
--- a/src/tags.cpp
+++ b/src/tags.cpp
@@ -1917,6 +1917,13 @@ namespace Exiv2 {
                                     N_("Unknown tag"),
                                     ifdIdNotSet, sectionIdNotSet, asciiString, printValue);
 
+    const TagInfo* ExifTags::tagList(const std::string& group)
+    {
+        const IfdInfo* ii = find(ifdInfo_, IfdInfo::Item(group));
+        if (ii == 0 || ii->tagList_ == 0) return 0;
+        return ii->tagList_();
+    } // ExifTags::tagList
+
     const TagInfo* ExifTags::tagList(IfdId ifdId)
     {
         const IfdInfo* ii = find(ifdInfo_, ifdId);
diff --git a/src/tags.hpp b/src/tags.hpp
index ec9b3aed..9e857a8a 100644
--- a/src/tags.hpp
+++ b/src/tags.hpp
@@ -323,6 +323,8 @@ namespace Exiv2 {
                                       IfdId ifdId,
                                       const Value& value,
                                       const ExifData* pExifData =0);
+        //! Return read-only list of built-in \em group tags.
+        static const TagInfo* tagList(const std::string& group);
         //! Return read-only list of built-in IFD0/1 tags
         static const TagInfo* ifdTagList();
         //! Return read-only list of built-in Exif IFD tags