closes #1: Favorite buttons has been extended with category buttons.

shop/settings/shopsettingsform.cpp

@@ -1,8 +1,6 @@
 #include "shopsettingsform.h"
 #include "ui_shopsettingsform.h"
 
-#include <settingsservice.h>
-#include <combodata.h>
 #include <QFileDialog>
 #include <QDragEnterEvent>
 #include <QDebug>
@@ -146,7 +144,7 @@ bool ShopSettingsForm::saveRecord()
     }
 
     foreach (QString btnName, m_btnMap.keys()) {
-        if (m_btnMap[btnName] != NULL)
+        if (m_btnMap[btnName] != nullptr)
         {
             srvFav.save(m_btnMap[btnName]);
         }
@@ -192,10 +190,6 @@ FavButtonStyle::FavButtonStyle()
 {
 }
 
-FavButtonStyle::~FavButtonStyle()
-{
-}
-
 void FavButtonStyle::drawItemText(QPainter *painter, const QRect &rect, int flags, const QPalette &pal, bool enabled, const QString &text, QPalette::ColorRole textRole) const
 {
     flags |= Qt::TextWordWrap;