/****************************************************************************
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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****************************************************************************/

#ifndef QFXFLOWVIEW_H
#define QFXFLOWVIEW_H

#include <private/qmltimeline_p.h>
#include <QtDeclarative/qfxitem.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QFxVisualItemModel;
class QFxFlowViewValue;
class QFxFlowViewAttached;
class Q_DECLARATIVE_EXPORT QFxFlowView : public QFxItem
{
    Q_OBJECT
    Q_PROPERTY(QFxVisualItemModel *model READ model WRITE setModel)
    Q_PROPERTY(int column READ columns WRITE setColumns)
    Q_PROPERTY(bool vertical READ vertical WRITE setVertical)

public:
    QFxFlowView();

    QFxVisualItemModel *model() const;
    void setModel(QFxVisualItemModel *);

    int columns() const;
    void setColumns(int);

    bool vertical() const;
    void setVertical(bool);

    virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);

    static QFxFlowViewAttached *qmlAttachedProperties(QObject *);

private:
    QRectF rectForItem(int idx) const;
    void refresh();
    void reflow(bool animate = false);
    void reflowDrag(const QPointF &);
    void clearTimeLine();
    int m_columns;
    QFxVisualItemModel *m_model;
    QList<QFxItem *> m_items;
    bool m_vertical;
    void moveItem(QFxItem *item, const QPointF &);

    QPointF m_dragOffset;
    QFxItem *m_dragItem;

    QmlTimeLine m_timeline;
    QList<QFxFlowViewValue *> m_values;
    int m_dragIdx;
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QFxFlowView)

QT_END_HEADER

#endif // QFXFLOWVIEW_H