5635823e17
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 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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** Contact: http://www.qt-project.org/
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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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**
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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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