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135 lines
4.4 KiB
135 lines
4.4 KiB
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QABSTRACTITEMDELEGATE_H
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#define QABSTRACTITEMDELEGATE_H
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#include <QtCore/qobject.h>
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#include <QtGui/qstyleoption.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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#ifndef QT_NO_ITEMVIEWS
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class QPainter;
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class QModelIndex;
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class QAbstractItemModel;
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class QAbstractItemView;
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class QHelpEvent;
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class Q_GUI_EXPORT QAbstractItemDelegate : public QObject
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{
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Q_OBJECT
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public:
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enum EndEditHint {
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NoHint,
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EditNextItem,
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EditPreviousItem,
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SubmitModelCache,
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RevertModelCache
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};
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explicit QAbstractItemDelegate(QObject *parent = 0);
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virtual ~QAbstractItemDelegate();
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// painting
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virtual void paint(QPainter *painter,
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const QStyleOptionViewItem &option,
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const QModelIndex &index) const = 0;
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virtual QSize sizeHint(const QStyleOptionViewItem &option,
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const QModelIndex &index) const = 0;
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// editing
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virtual QWidget *createEditor(QWidget *parent,
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const QStyleOptionViewItem &option,
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const QModelIndex &index) const;
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virtual void setEditorData(QWidget *editor, const QModelIndex &index) const;
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virtual void setModelData(QWidget *editor,
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QAbstractItemModel *model,
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const QModelIndex &index) const;
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virtual void updateEditorGeometry(QWidget *editor,
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const QStyleOptionViewItem &option,
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const QModelIndex &index) const;
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// for non-widget editors
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virtual bool editorEvent(QEvent *event,
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QAbstractItemModel *model,
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const QStyleOptionViewItem &option,
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const QModelIndex &index);
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static QString elidedText(const QFontMetrics &fontMetrics, int width,
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Qt::TextElideMode mode, const QString &text);
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public Q_SLOTS:
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bool helpEvent(QHelpEvent *event,
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QAbstractItemView *view,
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const QStyleOptionViewItem &option,
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const QModelIndex &index);
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Q_SIGNALS:
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void commitData(QWidget *editor);
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void closeEditor(QWidget *editor, QAbstractItemDelegate::EndEditHint hint = NoHint);
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void sizeHintChanged(const QModelIndex &);
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protected:
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QAbstractItemDelegate(QObjectPrivate &, QObject *parent = 0);
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private:
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Q_DISABLE_COPY(QAbstractItemDelegate)
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};
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#endif // QT_NO_ITEMVIEWS
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QABSTRACTITEMDELEGATE_H
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