qabstractitemdelegate.h
上传用户:detong
上传日期:2022-06-22
资源大小:20675k
文件大小:4k
- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtGui module of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
- ** to ensure GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
- **
- ****************************************************************************/
- #ifndef QABSTRACTITEMDELEGATE_H
- #define QABSTRACTITEMDELEGATE_H
- #include <QtCore/qobject.h>
- #include <QtGui/qstyleoption.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Gui)
- #ifndef QT_NO_ITEMVIEWS
- class QPainter;
- class QModelIndex;
- class QAbstractItemModel;
- class QAbstractItemView;
- class QHelpEvent;
- class Q_GUI_EXPORT QAbstractItemDelegate : public QObject
- {
- Q_OBJECT
- public:
- enum EndEditHint {
- NoHint,
- EditNextItem,
- EditPreviousItem,
- SubmitModelCache,
- RevertModelCache
- };
- explicit QAbstractItemDelegate(QObject *parent = 0);
- virtual ~QAbstractItemDelegate();
- // painting
- virtual void paint(QPainter *painter,
- const QStyleOptionViewItem &option,
- const QModelIndex &index) const = 0;
- virtual QSize sizeHint(const QStyleOptionViewItem &option,
- const QModelIndex &index) const = 0;
- // editing
- virtual QWidget *createEditor(QWidget *parent,
- const QStyleOptionViewItem &option,
- const QModelIndex &index) const;
- virtual void setEditorData(QWidget *editor, const QModelIndex &index) const;
- virtual void setModelData(QWidget *editor,
- QAbstractItemModel *model,
- const QModelIndex &index) const;
- virtual void updateEditorGeometry(QWidget *editor,
- const QStyleOptionViewItem &option,
- const QModelIndex &index) const;
- // for non-widget editors
- virtual bool editorEvent(QEvent *event,
- QAbstractItemModel *model,
- const QStyleOptionViewItem &option,
- const QModelIndex &index);
- static QString elidedText(const QFontMetrics &fontMetrics, int width,
- Qt::TextElideMode mode, const QString &text);
- public Q_SLOTS:
- bool helpEvent(QHelpEvent *event,
- QAbstractItemView *view,
- const QStyleOptionViewItem &option,
- const QModelIndex &index);
- Q_SIGNALS:
- void commitData(QWidget *editor);
- void closeEditor(QWidget *editor, QAbstractItemDelegate::EndEditHint hint = NoHint);
- void sizeHintChanged(const QModelIndex &);
- protected:
- QAbstractItemDelegate(QObjectPrivate &, QObject *parent = 0);
- private:
- Q_DISABLE_COPY(QAbstractItemDelegate)
- };
- #endif // QT_NO_ITEMVIEWS
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif // QABSTRACTITEMDELEGATE_H