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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 QDECLARATIVEFLICKABLE_H
#define QDECLARATIVEFLICKABLE_H
#include "qdeclarativeitem.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QDeclarativeFlickablePrivate;
class QDeclarativeFlickableVisibleArea;
class Q_AUTOTEST_EXPORT QDeclarativeFlickable : public QDeclarativeItem
{
Q_OBJECT
Q_PROPERTY(qreal contentWidth READ contentWidth WRITE setContentWidth NOTIFY contentWidthChanged)
Q_PROPERTY(qreal contentHeight READ contentHeight WRITE setContentHeight NOTIFY contentHeightChanged)
Q_PROPERTY(qreal contentX READ contentX WRITE setContentX NOTIFY contentXChanged)
Q_PROPERTY(qreal contentY READ contentY WRITE setContentY NOTIFY contentYChanged)
Q_PROPERTY(QDeclarativeItem *contentItem READ contentItem CONSTANT)
Q_PROPERTY(qreal horizontalVelocity READ horizontalVelocity NOTIFY horizontalVelocityChanged)
Q_PROPERTY(qreal verticalVelocity READ verticalVelocity NOTIFY verticalVelocityChanged)
Q_PROPERTY(BoundsBehavior boundsBehavior READ boundsBehavior WRITE setBoundsBehavior NOTIFY boundsBehaviorChanged)
Q_PROPERTY(qreal maximumFlickVelocity READ maximumFlickVelocity WRITE setMaximumFlickVelocity NOTIFY maximumFlickVelocityChanged)
Q_PROPERTY(qreal flickDeceleration READ flickDeceleration WRITE setFlickDeceleration NOTIFY flickDecelerationChanged)
Q_PROPERTY(bool moving READ isMoving NOTIFY movingChanged)
Q_PROPERTY(bool movingHorizontally READ isMovingHorizontally NOTIFY movingHorizontallyChanged)
Q_PROPERTY(bool movingVertically READ isMovingVertically NOTIFY movingVerticallyChanged)
Q_PROPERTY(bool flicking READ isFlicking NOTIFY flickingChanged)
Q_PROPERTY(bool flickingHorizontally READ isFlickingHorizontally NOTIFY flickingHorizontallyChanged)
Q_PROPERTY(bool flickingVertically READ isFlickingVertically NOTIFY flickingVerticallyChanged)
Q_PROPERTY(FlickableDirection flickableDirection READ flickableDirection WRITE setFlickableDirection NOTIFY flickableDirectionChanged)
Q_PROPERTY(bool interactive READ isInteractive WRITE setInteractive NOTIFY interactiveChanged)
Q_PROPERTY(int pressDelay READ pressDelay WRITE setPressDelay NOTIFY pressDelayChanged)
Q_PROPERTY(bool atXEnd READ isAtXEnd NOTIFY isAtBoundaryChanged)
Q_PROPERTY(bool atYEnd READ isAtYEnd NOTIFY isAtBoundaryChanged)
Q_PROPERTY(bool atXBeginning READ isAtXBeginning NOTIFY isAtBoundaryChanged)
Q_PROPERTY(bool atYBeginning READ isAtYBeginning NOTIFY isAtBoundaryChanged)
Q_PROPERTY(QDeclarativeFlickableVisibleArea *visibleArea READ visibleArea CONSTANT)
Q_PROPERTY(QDeclarativeListProperty<QObject> flickableData READ flickableData)
Q_PROPERTY(QDeclarativeListProperty<QGraphicsObject> flickableChildren READ flickableChildren)
Q_CLASSINFO("DefaultProperty", "flickableData")
Q_ENUMS(FlickableDirection)
Q_ENUMS(BoundsBehavior)
public:
QDeclarativeFlickable(QDeclarativeItem *parent=0);
~QDeclarativeFlickable();
QDeclarativeListProperty<QObject> flickableData();
QDeclarativeListProperty<QGraphicsObject> flickableChildren();
enum BoundsBehavior { StopAtBounds, DragOverBounds, DragAndOvershootBounds };
BoundsBehavior boundsBehavior() const;
void setBoundsBehavior(BoundsBehavior);
qreal contentWidth() const;
void setContentWidth(qreal);
qreal contentHeight() const;
void setContentHeight(qreal);
qreal contentX() const;
virtual void setContentX(qreal pos);
qreal contentY() const;
virtual void setContentY(qreal pos);
bool isMoving() const;
bool isMovingHorizontally() const;
bool isMovingVertically() const;
bool isFlicking() const;
bool isFlickingHorizontally() const;
bool isFlickingVertically() const;
int pressDelay() const;
void setPressDelay(int delay);
qreal maximumFlickVelocity() const;
void setMaximumFlickVelocity(qreal);
qreal flickDeceleration() const;
void setFlickDeceleration(qreal);
bool isInteractive() const;
void setInteractive(bool);
qreal horizontalVelocity() const;
qreal verticalVelocity() const;
bool isAtXEnd() const;
bool isAtXBeginning() const;
bool isAtYEnd() const;
bool isAtYBeginning() const;
QDeclarativeItem *contentItem();
enum FlickableDirection { AutoFlickDirection=0x00, HorizontalFlick=0x01, VerticalFlick=0x02, HorizontalAndVerticalFlick=0x03 };
FlickableDirection flickableDirection() const;
void setFlickableDirection(FlickableDirection);
Q_SIGNALS:
void contentWidthChanged();
void contentHeightChanged();
void contentXChanged();
void contentYChanged();
void movingChanged();
void movingHorizontallyChanged();
void movingVerticallyChanged();
void flickingChanged();
void flickingHorizontallyChanged();
void flickingVerticallyChanged();
void horizontalVelocityChanged();
void verticalVelocityChanged();
void isAtBoundaryChanged();
void flickableDirectionChanged();
void interactiveChanged();
void boundsBehaviorChanged();
void maximumFlickVelocityChanged();
void flickDecelerationChanged();
void pressDelayChanged();
void movementStarted();
void movementEnded();
void flickStarted();
void flickEnded();
protected:
virtual bool sceneEventFilter(QGraphicsItem *, QEvent *);
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
void wheelEvent(QGraphicsSceneWheelEvent *event);
void timerEvent(QTimerEvent *event);
QDeclarativeFlickableVisibleArea *visibleArea();
protected Q_SLOTS:
virtual void ticked();
void movementStarting();
void movementEnding();
protected:
void movementXEnding();
void movementYEnding();
virtual qreal minXExtent() const;
virtual qreal minYExtent() const;
virtual qreal maxXExtent() const;
virtual qreal maxYExtent() const;
qreal vWidth() const;
qreal vHeight() const;
virtual void viewportMoved();
virtual void geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry);
bool sendMouseEvent(QGraphicsSceneMouseEvent *event);
bool xflick() const;
bool yflick() const;
void cancelFlick();
protected:
QDeclarativeFlickable(QDeclarativeFlickablePrivate &dd, QDeclarativeItem *parent);
private:
Q_DISABLE_COPY(QDeclarativeFlickable)
Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QDeclarativeFlickable)
friend class QDeclarativeFlickableVisibleArea;
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QDeclarativeFlickable)
QT_END_HEADER
#endif
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