Added setting for default VAT type on Direct sell dialog. Fixed some compiler warnings.

shop/settings/shopsettingsform.cpp

@@ -48,6 +48,14 @@ ShopSettingsForm::ShopSettingsForm(QWidget *parent) :
     registerBinding(ui->doublePrint);
     registerBinding(ui->doublePrintItem);
 
+    QList<ComboData> listVatTypes;
+    listVatTypes
+            << ComboData(Enums::NONE, tr("None"))
+            << ComboData(Enums::HIGH, tr("High"))
+            << ComboData(Enums::FIRST_LOWER, tr("First lower"))
+            << ComboData(Enums::SECOND_LOWER, tr("Second lower"));
+    registerBinding(ui->defaultVat, listVatTypes);
+
     m_itemModel = new AutoTableModel<ShopItem>();
 }
 
@@ -70,7 +78,7 @@ void ShopSettingsForm::drawButtons()
             btn->setObjectName(QString::number(i) + "_" + QString::number(j));
             btn->setAcceptDrops(true);
 
-            if (m_btnMap[btn->objectName()] != NULL)
+            if (m_btnMap[btn->objectName()] != nullptr)
             {
                 btn->setText(m_btnMap[btn->objectName()]->shortName());
             }