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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVEPATHVIEW_P_H
#define QDECLARATIVEPATHVIEW_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "private/qdeclarativepathview_p.h"
#include "private/qdeclarativeitem_p.h"
#include "private/qdeclarativevisualitemmodel_p.h"
#include <qdeclarative.h>
#include <qdeclarativeanimation_p_p.h>
#include <qdeclarativeguard_p.h>
#include <qdatetime.h>
QT_BEGIN_NAMESPACE
class QDeclarativeOpenMetaObjectType;
class QDeclarativePathViewAttached;
class QDeclarativePathViewPrivate : public QDeclarativeItemPrivate
{
Q_DECLARE_PUBLIC(QDeclarativePathView)
public:
QDeclarativePathViewPrivate()
: path(0), currentIndex(0), currentItemOffset(0.0), startPc(0), lastDist(0)
, lastElapsed(0), mappedRange(1.0)
, stealMouse(false), ownModel(false), interactive(true), haveHighlightRange(true)
, autoHighlight(true), highlightUp(false), dragMargin(0), deceleration(100)
, moveOffset(this, &QDeclarativePathViewPrivate::setOffset)
, firstIndex(-1), pathItems(-1), requestedIndex(-1)
, moveReason(Other), attType(0), highlightComponent(0), highlightItem(0)
, moveHighlight(this, &QDeclarativePathViewPrivate::setHighlightPosition)
, highlightPosition(0)
, highlightRangeStart(0), highlightRangeEnd(0)
, highlightRangeMode(QDeclarativePathView::StrictlyEnforceRange)
, highlightMoveDuration(300)
{
}
void init()
{
Q_Q(QDeclarativePathView);
offset = 0;
q->setAcceptedMouseButtons(Qt::LeftButton);
q->setFlag(QGraphicsItem::ItemIsFocusScope);
q->setFiltersChildEvents(true);
q->connect(&tl, SIGNAL(updated()), q, SLOT(ticked()));
}
QDeclarativeItem *getItem(int modelIndex);
void releaseItem(QDeclarativeItem *item);
QDeclarativePathViewAttached *attached(QDeclarativeItem *item);
void clear();
void updateMappedRange();
qreal positionOfIndex(qreal index) const;
void createHighlight();
void updateHighlight();
void setHighlightPosition(qreal pos);
bool isValid() const {
return model && model->count() > 0 && model->isValid() && path;
}
int calcCurrentIndex();
void updateCurrent();
static void fixOffsetCallback(void*);
void fixOffset();
void setOffset(qreal offset);
void regenerate();
void updateItem(QDeclarativeItem *, qreal);
void snapToCurrent();
QPointF pointNear(const QPointF &point, qreal *nearPercent=0) const;
QDeclarativePath *path;
int currentIndex;
QDeclarativeGuard<QDeclarativeItem> currentItem;
qreal currentItemOffset;
qreal startPc;
QPointF startPoint;
qreal lastDist;
int lastElapsed;
qreal offset;
qreal mappedRange;
bool stealMouse : 1;
bool ownModel : 1;
bool interactive : 1;
bool haveHighlightRange : 1;
bool autoHighlight : 1;
bool highlightUp : 1;
QTime lastPosTime;
QPointF lastPos;
qreal dragMargin;
qreal deceleration;
QDeclarativeTimeLine tl;
QDeclarativeTimeLineValueProxy<QDeclarativePathViewPrivate> moveOffset;
int firstIndex;
int pathItems;
int requestedIndex;
QList<QDeclarativeItem *> items;
QDeclarativeGuard<QDeclarativeVisualModel> model;
QVariant modelVariant;
enum MovementReason { Other, SetIndex, Mouse };
MovementReason moveReason;
QDeclarativeOpenMetaObjectType *attType;
QDeclarativeComponent *highlightComponent;
QDeclarativeItem *highlightItem;
QDeclarativeTimeLineValueProxy<QDeclarativePathViewPrivate> moveHighlight;
qreal highlightPosition;
qreal highlightRangeStart;
qreal highlightRangeEnd;
QDeclarativePathView::HighlightRangeMode highlightRangeMode;
int highlightMoveDuration;
};
QT_END_NAMESPACE
#endif
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