1fdfc2abfe
Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
110 lines
3.9 KiB
C++
110 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 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 examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** 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 General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef ABSTRACTITEMCONTAINER_H
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#define ABSTRACTITEMCONTAINER_H
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#include <QModelIndex>
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#include "gvbwidget.h"
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class QGraphicsWidget;
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class AbstractItemView;
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class AbstractViewItem;
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class AbstractItemContainer : public GvbWidget
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{
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Q_OBJECT
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public:
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AbstractItemContainer(int bufferSize, QGraphicsWidget *parent=0);
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virtual ~AbstractItemContainer();
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virtual void addItem(const QModelIndex &index);
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virtual void removeItem(const QModelIndex &index);
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virtual void setItemView(AbstractItemView *view);
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virtual void setItemPrototype(AbstractViewItem *ptype);
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virtual void reset();
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virtual int itemCount() const;
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virtual AbstractViewItem* itemAt(const int row) const;
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AbstractViewItem* findItemByIndex(const QModelIndex &index) const;
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AbstractViewItem *prototype();
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AbstractViewItem *firstItem();
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void updateContent();
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void themeChange();
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int bufferSize() const;
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virtual void setTwoColumns(const bool enabled);
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bool twoColumns();
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void setSubtreeCacheEnabled(const bool enabled);
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virtual void setListItemCaching(const bool enabled, const int index) = 0;
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protected:
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virtual void adjustVisibleContainerSize(const QSizeF &size) = 0;
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virtual void addItemToVisibleLayout(int index, AbstractViewItem *item) = 0;
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virtual void removeItemFromVisibleLayout(AbstractViewItem *item) = 0;
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virtual bool event(QEvent *e);
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virtual bool eventFilter(QObject *obj, QEvent *event);
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virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
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virtual int maxItemCountInItemBuffer() const;
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bool itemVisibleInView(AbstractViewItem* item, const QRectF &viewRect, bool fullyVisible = true) const;
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protected:
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void updateItemBuffer();
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void findFirstAndLastVisibleBufferIndex(int &firstVisibleBufferIndex,
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int &lastVisibleBufferIndex,
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const QRectF &viewRect,
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bool fullyVisible) const;
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QList<AbstractViewItem*> m_items;
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AbstractItemView *m_itemView;
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AbstractViewItem *m_prototype;
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int m_bufferSize;
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private:
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void insertItem(int pos, const QModelIndex &index);
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bool m_twoColumns;
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Q_DISABLE_COPY(AbstractItemContainer)
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};
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#endif // ABSTRACTITEMCONTAINER_H
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