From 04ae926e8d49e66571e966cd828e75ae97a01489 Mon Sep 17 00:00:00 2001
From: Austin Blanton <imaus10@gmail.com>
Date: Thu, 25 Sep 2014 11:44:30 -0400
Subject: [PATCH] Add transform to filter templates based on a metadata ID

---
 openbr/plugins/template.cpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+), 0 deletions(-)

diff --git a/openbr/plugins/template.cpp b/openbr/plugins/template.cpp
index 7ef2846..b771c4f 100644
--- a/openbr/plugins/template.cpp
+++ b/openbr/plugins/template.cpp
@@ -176,6 +176,37 @@ class SelectPointsTransform : public UntrainableMetadataTransform
 
 BR_REGISTER(Transform, SelectPointsTransform)
 
+/*!
+ * \ingroup transforms
+ * \brief Removes duplicate templates based on a unique metadata key
+ * \author Austin Blanton \cite imaus10
+ */
+class FilterDupeMetadataTransform : public TimeVaryingTransform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString key READ get_key WRITE set_key RESET reset_key STORED false)
+    BR_PROPERTY(QString, key, "TemplateID")
+
+    QSet<QString> excluded;
+
+    void projectUpdate(const TemplateList &src, TemplateList &dst)
+    {
+        foreach (const Template &t, src) {
+            QString id = t.file.get<QString>(key);
+            if (!excluded.contains(id)) {
+                dst.append(t);
+                excluded.insert(id);
+            }
+        }
+    }
+
+public:
+    FilterDupeMetadataTransform() : TimeVaryingTransform(false,false) {}
+};
+
+BR_REGISTER(Transform, FilterDupeMetadataTransform)
+
 } // namespace br
 
 #include "template.moc"
--
libgit2 0.21.4