include/QtWidgets/qstyleditemdelegate.h

0001 // Copyright (C) 2016 The Qt Company Ltd.
0002 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0003
0004 #ifndef QSTYLEDITEMDELEGATE_H
0005 #define QSTYLEDITEMDELEGATE_H
0006
0007 #include <QtWidgets/qtwidgetsglobal.h>
0008 #include <QtWidgets/qabstractitemdelegate.h>
0009 #include <QtCore/qstring.h>
0010 #include <QtGui/qpixmap.h>
0011 #include <QtCore/qvariant.h>
0012
0013 QT_REQUIRE_CONFIG(itemviews);
0014
0015 QT_BEGIN_NAMESPACE
0016
0017 class QStyledItemDelegatePrivate;
0018 class QItemEditorFactory;
0019
0020 class Q_WIDGETS_EXPORT QStyledItemDelegate : public QAbstractItemDelegate
0021 {
0022     Q_OBJECT
0023
0024 public:
0025     explicit QStyledItemDelegate(QObject *parent = nullptr);
0026     ~QStyledItemDelegate();
0027
0028     // painting
0029     void paint(QPainter *painter,
0030                const QStyleOptionViewItem &option, const QModelIndex &index) const override;
0031     QSize sizeHint(const QStyleOptionViewItem &option,
0032                    const QModelIndex &index) const override;
0033
0034     // editing
0035     QWidget *createEditor(QWidget *parent,
0036                           const QStyleOptionViewItem &option,
0037                           const QModelIndex &index) const override;
0038
0039     void setEditorData(QWidget *editor, const QModelIndex &index) const override;
0040     void setModelData(QWidget *editor,
0041                       QAbstractItemModel *model,
0042                       const QModelIndex &index) const override;
0043
0044     void updateEditorGeometry(QWidget *editor,
0045                               const QStyleOptionViewItem &option,
0046                               const QModelIndex &index) const override;
0047
0048     // editor factory
0049     QItemEditorFactory *itemEditorFactory() const;
0050     void setItemEditorFactory(QItemEditorFactory *factory);
0051
0052     virtual QString displayText(const QVariant &value, const QLocale &locale) const;
0053
0054 protected:
0055     virtual void initStyleOption(QStyleOptionViewItem *option,
0056                                 const QModelIndex &index) const;
0057
0058     bool eventFilter(QObject *object, QEvent *event) override;
0059     bool editorEvent(QEvent *event, QAbstractItemModel *model,
0060                      const QStyleOptionViewItem &option, const QModelIndex &index) override;
0061
0062 private:
0063     Q_DECLARE_PRIVATE(QStyledItemDelegate)
0064     Q_DISABLE_COPY(QStyledItemDelegate)
0065 };
0066
0067 QT_END_NAMESPACE
0068
0069 #endif // QSTYLEDITEMDELEGATE_H