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Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeflickable_p_p.h')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativeflickable_p_p.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h b/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h new file mode 100644 index 0000000..dc3a8a2 --- /dev/null +++ b/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h @@ -0,0 +1,189 @@ +/**************************************************************************** +** +** 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_P_H +#define QDECLARATIVEFLICKABLE_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 "qdeclarativeflickable_p.h" + +#include "qdeclarativeitem_p.h" + +#include <qdeclarative.h> +#include <qdeclarativetimeline_p_p.h> +#include <qdeclarativeanimation_p_p.h> + +#include <qdatetime.h> + +QT_BEGIN_NAMESPACE + +class QDeclarativeFlickableVisibleArea; +class QDeclarativeFlickablePrivate : public QDeclarativeItemPrivate +{ + Q_DECLARE_PUBLIC(QDeclarativeFlickable) + +public: + QDeclarativeFlickablePrivate(); + void init(); + virtual void flickX(qreal velocity); + virtual void flickY(qreal velocity); + virtual void fixupX(); + virtual void fixupY(); + void updateBeginningEnd(); + + void captureDelayedPress(QGraphicsSceneMouseEvent *event); + void clearDelayedPress(); + + void setRoundedViewportX(qreal x); + void setRoundedViewportY(qreal y); + +public: + QDeclarativeItem *viewport; + QDeclarativeTimeLineValueProxy<QDeclarativeFlickablePrivate> _moveX; + QDeclarativeTimeLineValueProxy<QDeclarativeFlickablePrivate> _moveY; + QDeclarativeTimeLine timeline; + qreal vWidth; + qreal vHeight; + bool overShoot : 1; + bool flicked : 1; + bool moving : 1; + bool stealMouse : 1; + bool pressed : 1; + bool atXEnd : 1; + bool atXBeginning : 1; + bool atYEnd : 1; + bool atYBeginning : 1; + bool interactive : 1; + QTime lastPosTime; + QPointF lastPos; + QPointF pressPos; + qreal pressX; + qreal pressY; + qreal velocityX; + qreal velocityY; + QTime pressTime; + qreal deceleration; + qreal maxVelocity; + QTime velocityTime; + QPointF lastFlickablePosition; + qreal reportedVelocitySmoothing; + qreal flickTargetX; + qreal flickTargetY; + QGraphicsSceneMouseEvent *delayedPressEvent; + QGraphicsItem *delayedPressTarget; + QBasicTimer delayedPressTimer; + int pressDelay; + int fixupDuration; + + static void fixupY_callback(void *); + static void fixupX_callback(void *); + + void updateVelocity(); + struct Velocity : public QDeclarativeTimeLineValue + { + Velocity(QDeclarativeFlickablePrivate *p) + : parent(p) {} + virtual void setValue(qreal v) { + QDeclarativeTimeLineValue::setValue(v); + parent->updateVelocity(); + } + QDeclarativeFlickablePrivate *parent; + }; + Velocity horizontalVelocity; + Velocity verticalVelocity; + int vTime; + QDeclarativeTimeLine velocityTimeline; + QDeclarativeFlickableVisibleArea *visibleArea; + QDeclarativeFlickable::FlickDirection flickDirection; + + void handleMousePressEvent(QGraphicsSceneMouseEvent *); + void handleMouseMoveEvent(QGraphicsSceneMouseEvent *); + void handleMouseReleaseEvent(QGraphicsSceneMouseEvent *); + + // flickableData property + static void data_append(QDeclarativeListProperty<QObject> *, QObject *); +}; + +class QDeclarativeFlickableVisibleArea : public QObject +{ + Q_OBJECT + + Q_PROPERTY(qreal xPosition READ xPosition NOTIFY pageChanged) + Q_PROPERTY(qreal yPosition READ yPosition NOTIFY pageChanged) + Q_PROPERTY(qreal widthRatio READ widthRatio NOTIFY pageChanged) + Q_PROPERTY(qreal heightRatio READ heightRatio NOTIFY pageChanged) + +public: + QDeclarativeFlickableVisibleArea(QDeclarativeFlickable *parent=0); + + qreal xPosition() const; + qreal widthRatio() const; + qreal yPosition() const; + qreal heightRatio() const; + + void updateVisible(); + +signals: + void pageChanged(); + +private: + QDeclarativeFlickable *flickable; + qreal m_xPosition; + qreal m_widthRatio; + qreal m_yPosition; + qreal m_heightRatio; +}; + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QDeclarativeFlickableVisibleArea) + +#endif |