38be0d1383
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 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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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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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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** 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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**
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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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**
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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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#if (QT_VERSION >= 0x040600)
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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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#endif
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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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