src/hbwidgets/itemviews/hbabstractitemcontainer_p.h
changeset 0 16d8024aca5e
child 1 f7ac710697a9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbwidgets/itemviews/hbabstractitemcontainer_p.h	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbWidgets module of the UI Extensions for Mobile.
+**
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+#ifndef HBABSTRACTITEMCONTAINERPRIVATE_H
+#define HBABSTRACTITEMCONTAINERPRIVATE_H
+
+#include "hbwidget_p.h"
+#include "hbabstractitemcontainer.h"
+
+#include <QPersistentModelIndex>
+
+class HbAbstractViewItem;
+class HbAbstractItemView;
+
+class HbAbstractItemContainerPrivate : public HbWidgetPrivate
+{
+    Q_DECLARE_PUBLIC(HbAbstractItemContainer)
+
+public:
+
+    struct StateItem
+    {
+        QPersistentModelIndex index;
+        QMap<int,QVariant> state;
+    };
+
+    HbAbstractItemContainerPrivate();
+    virtual ~HbAbstractItemContainerPrivate();
+
+    QRectF itemBoundingRect(const QGraphicsItem *item) const;
+
+    void firstAndLastVisibleBufferIndex(int& firstVisibleBufferIndex,
+        int& lastVisibleBufferIndex,
+        const QRectF &viewRect,
+        bool fullyVisible = true) const;
+
+    bool visible(HbAbstractViewItem* item, const QRectF &viewRect, bool fullyVisible = true) const;
+
+    void deletePrototypes();
+
+    int findStateItem(const QModelIndex &index) const;
+
+    void initPrototype(HbAbstractViewItem *prototype) const;
+
+    HbAbstractViewItem *createItem(const QModelIndex &index);
+    HbAbstractViewItem *itemPrototype(const QModelIndex& index) const;
+
+    virtual void updateItemBuffer();
+    void increaseBufferSize(int amount);
+    void decreaseBufferSize(int amount);
+
+    HbAbstractViewItem* item(const QModelIndex &index) const;
+
+    void doRemoveItem(HbAbstractViewItem *item, const QModelIndex &index, bool animate = false);
+
+    void deleteItem(HbAbstractViewItem *item, bool animate = false);
+
+    virtual bool intoContainerBuffer(const QModelIndex &index) const; 
+    virtual int containerBufferIndexForModelIndex(const QModelIndex &index) const;
+
+    mutable QList<HbAbstractViewItem*>  mPrototypes;
+    QList<StateItem> mItemStateList;
+
+    QList<HbAbstractViewItem*>  mItems;
+    HbAbstractItemView *mItemView;
+
+    int mBufferSize;
+    bool mItemRecycling;
+
+    bool mUniformItemSizes;
+    QPersistentModelIndex mFirstItemIndex;
+    static const int UpdateItemBufferEvent;
+};
+
+Q_DECLARE_METATYPE(HbAbstractItemContainerPrivate::StateItem)
+
+#endif /* HBABSTRACTITEMCONTAINERPRIVATE_H */