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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: openBossa - INdT (renato.chencarek@openbossa.org)
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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
** the openBossa stream from INdT (renato.chencarek@openbossa.org).
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef SHOPPINGLISTCATEGORYUI_H
#define SHOPPINGLISTCATEGORYUI_H

#include <QObject>
#include <QGraphicsRectItem>
#include <QGraphicsPixmapItem>
#include <QBasicTimer>
#include <QTime>
#include "shoppinglist.h"
#include "scrollbar.h"
#include "gesturebox.h"
#include "popup.h"
#include "listshadow.h"

class ShoppingListScrollBox : public QObject, public GestureBox
{
    Q_OBJECT
public:
    ShoppingListScrollBox(QGraphicsItem *content, QGraphicsItem *parent = 0);
    void setActive(bool active) { m_active = active; }
    bool active() const { return m_active; }

signals:
    void updated(qreal, qreal, qreal);

protected:
    void gestureMousePress(QPointF pos, bool &startGesture, bool &acceptClick);
    void gestureStart(QPointF pos);
    void gestureMove(QPointF pos, QPointF movement, QPointF speed);
    void gestureEnd(QPointF pos, QPointF speed);

    void timerEvent(QTimerEvent *event);

private:
    QGraphicsItem * const m_content;
    QBasicTimer m_ticker;
    qreal m_speed;
    qreal m_acceleration;
    QTime m_time;
    bool m_active;
    QPointF m_startPoint;
    bool move(QPointF movement);
    void contentPositionUpdated();
};

class ShoppingListCategoryUI : public QObject, public QGraphicsRectItem
{
    Q_OBJECT
public:
    ShoppingListCategoryUI(const QString &category, QGraphicsItem *parent = 0);
    ShoppingList *list() { return m_shoppingList; }
    void updateUI();

    bool focused() const { return m_shadow->focused(); }
    void setFocused(bool focused);

public slots:
    void updated(qreal, qreal, qreal);

private:
    QGraphicsPixmapItem *m_pic;
    QGraphicsPixmapItem *m_header;
    QGraphicsPixmapItem *m_background;
    QGraphicsPixmapItem *m_feather;
    ShoppingList *m_shoppingList;
    ScrollBar* m_scroll;
    ShoppingListScrollBox *m_scrollBox;
    PopUp *m_popup;
    ListShadow *m_shadow;
    const QString m_category;

    void updateListState();
    void setCompleted(bool completed);

private slots:
    void showPopup();
    void hidePopup();
    void clearList();
};

#endif // SHOPPINGLISTCATEGORYUI_H