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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
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