From d2d6134faa2dc89497a341ffee79ab9e240831a0 Mon Sep 17 00:00:00 2001
From: Charles Otto <ottochar@gmail.com>
Date: Sun, 12 May 2013 14:30:34 -0400
Subject: [PATCH] Add a transform to draw a properties value at some point

---
 openbr/plugins/draw.cpp | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+), 0 deletions(-)

diff --git a/openbr/plugins/draw.cpp b/openbr/plugins/draw.cpp
index 6a6a933..6d20b17 100644
--- a/openbr/plugins/draw.cpp
+++ b/openbr/plugins/draw.cpp
@@ -61,6 +61,45 @@ class DrawTransform : public UntrainableTransform
 
 BR_REGISTER(Transform, DrawTransform)
 
+
+class DrawPropertyPointTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString propName READ get_propName WRITE set_propName RESET reset_propName STORED false)
+    Q_PROPERTY(QString pointName READ get_pointName WRITE set_pointName RESET reset_pointName STORED false)
+    BR_PROPERTY(QString, propName, "")
+    BR_PROPERTY(QString, pointName, "")
+
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+        if (propName.isEmpty() || pointName.isEmpty())
+            return;
+
+        const Scalar textColor(255, 255, 0);
+
+        QVariant prop = dst.file.value(propName);
+
+
+        if (!prop.canConvert(QVariant::String))
+            return;
+        QString propString = prop.toString();
+
+        QVariant point = dst.file.value(pointName);
+
+        if (!point.canConvert(QVariant::PointF))
+            return;
+
+        QPointF targetPoint = point.toPointF();
+
+        Point2f cvPoint =OpenCVUtils::toPoint(targetPoint);
+        putText(dst, propString.toStdString(), cvPoint, FONT_HERSHEY_SIMPLEX, 0.5, textColor, 1);
+    }
+
+};
+BR_REGISTER(Transform, DrawPropertyPointTransform)
+
 /*!
  * \ingroup transforms
  * \brief Draws a grid on the image
--
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