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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 CITYCARROUSSEL_H
#define CITYCARROUSSEL_H
#include "forecast.h"
#include "forecastview.h"
#include "carroussel.h"
#include "gesturebox.h"
#include "cityinfodisplay.h"
#include "forecastdata.h"
#include <QSharedPointer>
#include <QWeakPointer>
class ForecastBackground : public QGraphicsPixmapItem
{
public:
ForecastBackground(QGraphicsItem *parent = 0);
Forecast::ForecastType forecast() const { return m_forecast; }
bool night() const { return m_night; }
void setForecast(Forecast::ForecastType forecast, bool night);
void reset() { setForecast(Forecast::UnknownForecast, false); }
void setReferencePos(qreal pos);
void setDisplacement(qreal displacement);
void addCompanion(QGraphicsItem *item);
void removeCompanion(QGraphicsItem *item);
QString description() const { return m_description; }
private:
QVariant itemChange(GraphicsItemChange change, const QVariant &value);
private:
Forecast::ForecastType m_forecast;
bool m_night;
qreal m_pos;
qreal m_displacement;
QList<QGraphicsItem*> m_companion;
QGraphicsPixmapItem *m_effect;
QString m_description;
};
class CityCarroussel;
class CityCarrousselGesture : public GestureBox
{
public:
CityCarrousselGesture(CityCarroussel &carroussel, QGraphicsItem *parent = 0);
void setActivate(bool active) { m_active = active; }
void abort() { m_aborted = true; }
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);
private:
CityCarroussel &m_carroussel;
bool m_active;
bool m_aborted;
qreal m_startPoint;
};
class CityCarroussel : public QObject, public QGraphicsItem
{
Q_OBJECT
Q_INTERFACES(QGraphicsItem)
Q_PROPERTY(qreal displacement READ displacement WRITE setDisplacement)
public:
CityCarroussel(QGraphicsItem *parent = 0);
~CityCarroussel();
void add(ForecastData item);
void update(QList<ForecastData> items);
static int loadImages();
bool active() const { return m_active; }
void setActive(bool value);
QString selected() const { return m_data.count() > 0 ? m_data[0].key() : QString(); }
QRectF boundingRect () const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
signals:
void cityNameClicked();
public slots:
void moveLeft() { move(-1); }
void moveRight() { move(1); }
private:
friend class CityCarrousselGesture;
Carroussel<ForecastData> m_data;
Carroussel<ForecastBackground*> m_background;
Carroussel<CityInfoDisplay*> m_cityInfo;
CarrousselGroup m_carroussel;
ForecastView *m_view;
qreal m_displacement;
CityCarrousselGesture *m_gestureBox;
const QRectF m_boundingRect;
const qreal m_backgroundWidth;
const qreal m_backgroundPos;
const qreal m_transparencySize;
const qreal m_distance;
qreal m_positions[3];
bool m_active;
bool m_deleteAfterMove;
void setGestureDisplacement(qreal displacement);
void moveBack() { move(0); }
void move(int direction, bool deleteLastItem = false);
void moveEnd(int direction);
void updateBackground(int idx);
void updateMainItem();
void setDisplacement(qreal displacement);
qreal displacement() const { return m_displacement; }
private slots:
void moveLeftEnd() { moveEnd(-1); }
void moveRightEnd() { moveEnd(1); }
void moveBackEnd() { moveEnd(0); }
};
#endif // CITYCARROUSSEL_H
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