cpp: Add getters for the attributes of a trust signature

* lang/cpp/src/key.h (TrustSignatureTrust): New enum.
* lang/cpp/src/key.h, lang/cpp/src/key.cpp
(UserID::Signature::isTrustSignature): New.
(UserID::Signature::trustValue): New.
(UserID::Signature::trustDepth): New.
(UserID::Signature::trustScope): New.
--

GnuPG-bug-id: 5245, 5420

1 files changed, 11 insertions, 0 deletions

diff --git a/lang/cpp/src/key.h b/lang/cpp/src/key.h
index 515bf185..0e6380db 100644
--- a/lang/cpp/src/key.h
+++ b/lang/cpp/src/key.h
@@ -47,6 +47,12 @@ class TofuInfo;
 
 typedef std::shared_ptr< std::remove_pointer<gpgme_key_t>::type > shared_gpgme_key_t;
 
+enum class TrustSignatureTrust : char {
+    None = 0,
+    Partial,
+    Complete,
+};
+
 //
 // class Key
 //
@@ -514,6 +520,11 @@ public:
     GpgME::Notation notation(unsigned int idx) const;
     std::vector<GpgME::Notation> notations() const;
 
+    bool isTrustSignature() const;
+    TrustSignatureTrust trustValue() const;
+    unsigned int trustDepth() const;
+    const char *trustScope() const;
+
 private:
     shared_gpgme_key_t key;
     gpgme_user_id_t uid;