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39 
40 #ifndef QITEMEDITORFACTORY_H
41 #define QITEMEDITORFACTORY_H
42 
43 #include <QtWidgets/qtwidgetsglobal.h>
44 #include <QtCore/qmetaobject.h>
45 #include <QtCore/qbytearray.h>
46 #include <QtCore/qhash.h>
47 #include <QtCore/qvariant.h>
48 
49 QT_REQUIRE_CONFIG(itemviews);
50 
51 QT_BEGIN_NAMESPACE
52 
53 class QWidget;
54 
55 class Q_WIDGETS_EXPORT QItemEditorCreatorBase
56 {
57 public:
58     virtual ~QItemEditorCreatorBase();
59 
60     virtual QWidget *createWidget(QWidget *parent) const = 0;
61     virtual QByteArray valuePropertyName() const = 0;
62 };
63 
64 template <class T>
65 class QItemEditorCreator : public QItemEditorCreatorBase
66 {
67 public:
68     inline explicit QItemEditorCreator(const QByteArray &valuePropertyName);
createWidget(QWidget * parent)69     inline QWidget *createWidget(QWidget *parent) const override { return new T(parent); }
valuePropertyName()70     inline QByteArray valuePropertyName() const override { return propertyName; }
71 
72 private:
73     QByteArray propertyName;
74 };
75 
76 template <class T>
77 class QStandardItemEditorCreator: public QItemEditorCreatorBase
78 {
79 public:
QStandardItemEditorCreator()80     inline QStandardItemEditorCreator()
81         : propertyName(T::staticMetaObject.userProperty().name())
82     {}
createWidget(QWidget * parent)83     inline QWidget *createWidget(QWidget *parent) const override { return new T(parent); }
valuePropertyName()84     inline QByteArray valuePropertyName() const override { return propertyName; }
85 
86 private:
87     QByteArray propertyName;
88 };
89 
90 
91 template <class T>
QItemEditorCreator(const QByteArray & avaluePropertyName)92 Q_INLINE_TEMPLATE QItemEditorCreator<T>::QItemEditorCreator(const QByteArray &avaluePropertyName)
93     : propertyName(avaluePropertyName) {}
94 
95 class Q_WIDGETS_EXPORT QItemEditorFactory
96 {
97 public:
QItemEditorFactory()98     inline QItemEditorFactory() {}
99     virtual ~QItemEditorFactory();
100 
101     virtual QWidget *createEditor(int userType, QWidget *parent) const;
102     virtual QByteArray valuePropertyName(int userType) const;
103 
104     void registerEditor(int userType, QItemEditorCreatorBase *creator);
105 
106     static const QItemEditorFactory *defaultFactory();
107     static void setDefaultFactory(QItemEditorFactory *factory);
108 
109 private:
110     QHash<int, QItemEditorCreatorBase *> creatorMap;
111 };
112 
113 QT_END_NAMESPACE
114 
115 #endif // QITEMEDITORFACTORY_H
116