add qlabel one-way transfer option

1 files changed, 8 insertions, 0 deletions

diff --git a/facetracknoir/options.h b/facetracknoir/options.h
index 1305bd0a..e77988c7 100644
--- a/facetracknoir/options.h
+++ b/facetracknoir/options.h
@@ -23,6 +23,7 @@
 #include <QSpinBox>
 #include <QSlider>
 #include <QLineEdit>
+#include <QLabel>
 #include <QCoreApplication>
 
 #ifdef __GNUC__
@@ -297,6 +298,13 @@ namespace options {
         le->setText(v);
     }
 
+    template<>
+    inline void tie_setting(value<QString>& v, QLabel* lb)
+    {
+        base_value::connect(&v, SIGNAL(valueChanged(QString)), lb, SLOT(setText(QString)), v.CONNTYPE);
+        lb->setText(v);
+    }
+
     inline pbundle bundle(const QString& group) {
         return std::make_shared<impl_bundle>(group);
     }