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40 
41 #ifndef WINDOW_H
42 #define WINDOW_H
43 
44 #include <QWidget>
45 
46 QT_BEGIN_NAMESPACE
47 class QDataWidgetMapper;
48 class QLabel;
49 class QLineEdit;
50 class QPushButton;
51 class QSpinBox;
52 class QStandardItemModel;
53 class QTextEdit;
54 QT_END_NAMESPACE
55 
56 //! [Window definition]
57 class Window : public QWidget
58 {
59     Q_OBJECT
60 
61 public:
62     Window(QWidget *parent = 0);
63 
64 private slots:
65     void updateButtons(int row);
66 
67 private:
68     void setupModel();
69 
70     QLabel *nameLabel;
71     QLabel *addressLabel;
72     QLabel *ageLabel;
73     QLineEdit *nameEdit;
74     QTextEdit *addressEdit;
75     QSpinBox *ageSpinBox;
76     QPushButton *nextButton;
77     QPushButton *previousButton;
78 
79     QStandardItemModel *model;
80     QDataWidgetMapper *mapper;
81 };
82 //! [Window definition]
83 
84 #endif
85