qstyleditemdelegate.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QSTYLEDITEMDELEGATE_H
#define QSTYLEDITEMDELEGATE_H
 
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtWidgets/qabstractitemdelegate.h>
#include <QtCore/qstring.h>
#include <QtGui/qpixmap.h>
#include <QtCore/qvariant.h>
 
QT_REQUIRE_CONFIG(itemviews);
 
QT_BEGIN_NAMESPACE
 
class QStyledItemDelegatePrivate;
class QItemEditorFactory;
 
class Q_WIDGETS_EXPORT QStyledItemDelegate : public QAbstractItemDelegate
{
    Q_OBJECT
 
public:
    explicit QStyledItemDelegate(QObject *parent = nullptr);
    ~QStyledItemDelegate();
 
    // painting
    void paint(QPainter *painter,
               const QStyleOptionViewItem &option, const QModelIndex &index) const override;
    QSize sizeHint(const QStyleOptionViewItem &option,
                   const QModelIndex &index) const override;
 
    // editing
    QWidget *createEditor(QWidget *parent,
                          const QStyleOptionViewItem &option,
                          const QModelIndex &index) const override;
 
    void setEditorData(QWidget *editor, const QModelIndex &index) const override;
    void setModelData(QWidget *editor,
                      QAbstractItemModel *model,
                      const QModelIndex &index) const override;
 
    void updateEditorGeometry(QWidget *editor,
                              const QStyleOptionViewItem &option,
                              const QModelIndex &index) const override;
 
    // editor factory
    QItemEditorFactory *itemEditorFactory() const;
    void setItemEditorFactory(QItemEditorFactory *factory);
 
    virtual QString displayText(const QVariant &value, const QLocale &locale) const;
 
protected:
    virtual void initStyleOption(QStyleOptionViewItem *option,
                                const QModelIndex &index) const;
 
    bool eventFilter(QObject *object, QEvent *event) override;
    bool editorEvent(QEvent *event, QAbstractItemModel *model,
                     const QStyleOptionViewItem &option, const QModelIndex &index) override;
 
private:
    Q_DECLARE_PRIVATE(QStyledItemDelegate)
    Q_DISABLE_COPY(QStyledItemDelegate)
};
 
QT_END_NAMESPACE
 
#endif // QSTYLEDITEMDELEGATE_H