add internal Thumb widget for Toggle

components/toggle.cpp

@@ -4,6 +4,15 @@
 #include "toggle.h"
 #include "../lib/rippleoverlay.h"
 
+Thumb::Thumb(QWidget *parent)
+    : QWidget(parent)
+{
+}
+
+Thumb::~Thumb()
+{
+}
+
 Toggle::Toggle(QWidget *parent)
     : QAbstractButton(parent),
       _overlay(new RippleOverlay(this))

components/toggle.h

@@ -5,6 +5,15 @@
 
 class RippleOverlay;
 
+class Thumb : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit Thumb(QWidget *parent = 0);
+    ~Thumb();
+};
+
 class Toggle : public QAbstractButton
 {
     Q_OBJECT