re-implement Raised Button as pimpl class

components/raisedbutton.cpp

@@ -1,9 +1,26 @@
 #include "raisedbutton.h"
+#include <QGraphicsDropShadowEffect>
 #include "raisedbutton_p.h"
 
+void RaisedButtonPrivate::init()
+{
+    Q_Q(RaisedButton);
+
+    QGraphicsDropShadowEffect *effect = new QGraphicsDropShadowEffect;
+    effect->setBlurRadius(7);
+    effect->setOffset(QPoint(0, 0));
+    effect->setColor(QColor(0, 0, 0, 100));
+    q->setGraphicsEffect(effect);
+
+    q->setAutoFillBackground(true);
+}
+
 RaisedButton::RaisedButton(QWidget *parent)
     : FlatButton(*new RaisedButtonPrivate(this), parent)
 {
+    Q_D(RaisedButton);
+
+    d->init();
 }
 
 RaisedButton::~RaisedButton()

components/raisedbutton.h

@@ -3,6 +3,8 @@
 
 #include "flatbutton.h"
 
+class RaisedButtonPrivate;
+
 class RaisedButton : public FlatButton
 {
     Q_OBJECT
@@ -10,6 +12,10 @@ class RaisedButton : public FlatButton
 public:
     explicit RaisedButton(QWidget *parent = 0);
     ~RaisedButton();
+
+private:
+    Q_DISABLE_COPY(RaisedButton)
+    Q_DECLARE_PRIVATE(RaisedButton)
 };
 
 #endif // RAISEDBUTTON_H

components/raisedbutton_p.h

@@ -11,8 +11,9 @@ class RaisedButtonPrivate : public FlatButtonPrivate
 public:
     RaisedButtonPrivate(RaisedButton *q)
         : FlatButtonPrivate(q)
-    {
-    }
+    {}
+
+    void init();
 };
 
 #endif // RAISEDBUTTON_P_H