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# qitemeditorfactory.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QITEMEDITORFACTORY_H
    00043 #define QITEMEDITORFACTORY_H
    00044
    00045 #include <QtCore/qmetaobject.h>
    00046 #include <QtCore/qbytearray.h>
    00047 #include <QtCore/qhash.h>
    00048 #include <QtCore/qvariant.h>
    00049
    00050 QT_BEGIN_HEADER
    00051
    00052 QT_BEGIN_NAMESPACE
    00053
    00054 QT_MODULE(Gui)
    00055
    00056 #ifndef QT_NO_ITEMVIEWS
    00057
    00058 class QWidget;
    00059
    00060 class Q_GUI_EXPORT QItemEditorCreatorBase
    00061 {
    00062 public:
    00063     virtual ~QItemEditorCreatorBase() {}
    00064
    00065     virtual QWidget *createWidget(QWidget *parent) const = 0;
    00066     virtual QByteArray valuePropertyName() const = 0;
    00067 };
    00068
    00069 template <class T>
    00070 class QItemEditorCreator : public QItemEditorCreatorBase
    00071 {
    00072 public:
    00073     inline QItemEditorCreator(const QByteArray &valuePropertyName);
    00074     inline QWidget *createWidget(QWidget *parent) const { return new T(parent); }
    00075     inline QByteArray valuePropertyName() const { return propertyName; }
    00076
    00077 private:
    00078     QByteArray propertyName;
    00079 };
    00080
    00081 template <class T>
    00082 class QStandardItemEditorCreator: public QItemEditorCreatorBase
    00083 {
    00084 public:
    00085     inline QStandardItemEditorCreator()
    00086         : propertyName(T::staticMetaObject.userProperty().name())
    00087     {}
    00088     inline QWidget *createWidget(QWidget *parent) const { return new T(parent); }
    00089     inline QByteArray valuePropertyName() const { return propertyName; }
    00090
    00091 private:
    00092     QByteArray propertyName;
    00093 };
    00094
    00095
    00096 template <class T>
    00097 Q_INLINE_TEMPLATE QItemEditorCreator<T>::QItemEditorCreator(const QByteArray &avaluePropertyName)
    00098     : propertyName(avaluePropertyName) {}
    00099
    00100 class Q_GUI_EXPORT QItemEditorFactory
    00101 {
    00102 public:
    00103     inline QItemEditorFactory() {}
    00104     virtual ~QItemEditorFactory();
    00105
    00106     virtual QWidget *createEditor(QVariant::Type type, QWidget *parent) const;
    00107     virtual QByteArray valuePropertyName(QVariant::Type type) const;
    00108
    00109     void registerEditor(QVariant::Type type, QItemEditorCreatorBase *creator);
    00110
    00111     static const QItemEditorFactory *defaultFactory();
    00112     static void setDefaultFactory(QItemEditorFactory *factory);
    00113
    00114 private:
    00115     QHash<QVariant::Type, QItemEditorCreatorBase *> creatorMap;
    00116 };
    00117
    00118 #endif // QT_NO_ITEMVIEWS
    00119
    00120 QT_END_NAMESPACE
    00121
    00122 QT_END_HEADER
    00123
    00124 #endif // QITEMEDITORFACTORY_H