refactoring qad widgets part 2

c++ cast, nullptr, forward declaration, agregate ui, connect to member functions, order and clear includes

libs/widgets/qpiconfignewdialog.h

@@ -21,7 +21,6 @@
 #define QPICONFIGNEWDIALOG_H
 
 #include <QDialog>
-#include <QRadioButton>
 #include "qad_widgets_export.h"
 
 
@@ -29,13 +28,15 @@ namespace Ui {
 	class QPIConfigNewDialog;
 }
 
+class QRadioButton;
+
 
 class QAD_WIDGETS_EXPORT QPIConfigNewDialog: public QDialog
 {
 	Q_OBJECT
 	
 public:
-	QPIConfigNewDialog(QWidget * parent = 0);
+	QPIConfigNewDialog(QWidget * parent = nullptr);
 	
 	QString type();
 	QString name();
@@ -44,15 +45,14 @@ public:
 	void reset(bool node = false);
 	
 protected:
-	void changeEvent(QEvent * e);
-	
-	Ui::QPIConfigNewDialog * ui;
+	void changeEvent(QEvent * e) override;
 	
 private slots:
 	void on_lineName_textChanged(const QString & text);
 	void typeChanged();
 
 private:
+	Ui::QPIConfigNewDialog * ui;
 	QList<QRadioButton * > radios;
 	
 };