1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 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)92Q_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