check that value differs from current value in setters

lib/ripple.cpp

@@ -20,6 +20,24 @@ Ripple::~Ripple()
 {
 }
 
+void Ripple::setRadius(qreal radius)
+{
+    if (radius == _radius)
+        return;
+
+    _radius = radius;
+    emit valueChanged();
+}
+
+void Ripple::setOpacity(qreal opacity)
+{
+    if (opacity == _opacity)
+        return;
+
+    _opacity = opacity;
+    emit valueChanged();
+}
+
 QPropertyAnimation *Ripple::animate(const QByteArray &property)
 {
     QPropertyAnimation *animation = new QPropertyAnimation;

lib/ripple.h

@@ -17,10 +17,10 @@ public:
     explicit Ripple(const QPoint &center, QObject *parent = 0);
     ~Ripple();
 
-    inline void setRadius(qreal radius) { _radius = radius; emit valueChanged(); }
+    void setRadius(qreal radius);
     inline qreal radius() const { return _radius; }
 
-    inline void setOpacity(qreal opacity) { _opacity = opacity; emit valueChanged(); }
+    void setOpacity(qreal opacity);
     inline qreal opacity() const { return _opacity; }
 
     inline const QPoint &center() const { return _center; }