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    41 

    42 #ifndef QDECLARATIVEPATHVIEW_P_H

    43 #define QDECLARATIVEPATHVIEW_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "private/qdeclarativepathview_p.h"

    57 

    58 #include "private/qdeclarativeitem_p.h"

    59 #include "private/qdeclarativevisualitemmodel_p.h"

    60 

    61 #include <qdeclarative.h>

    62 #include <qdeclarativeanimation_p_p.h>

    63 #include <qdeclarativeguard_p.h>

    64 

    65 #include <qdatetime.h>

    66 

    67 QT_BEGIN_NAMESPACE

    68 

    69 class QDeclarativeOpenMetaObjectType;

    70 class QDeclarativePathViewAttached;

    71 class QDeclarativePathViewPrivate : public QDeclarativeItemPrivate

    72 {

    73     Q_DECLARE_PUBLIC(QDeclarativePathView)

    74 

    75 public:

    76     QDeclarativePathViewPrivate()

    77       : path(0), currentIndex(0), currentItemOffset(0.0), startPc(0), lastDist(0)

    78         , lastElapsed(0), mappedRange(1.0)

    79         , stealMouse(false), ownModel(false), interactive(true), haveHighlightRange(true)

    80         , autoHighlight(true), highlightUp(false), dragMargin(0), deceleration(100)

    81         , moveOffset(this, &QDeclarativePathViewPrivate::setOffset)

    82         , firstIndex(-1), pathItems(-1), requestedIndex(-1)

    83         , moveReason(Other), attType(0), highlightComponent(0), highlightItem(0)

    84         , moveHighlight(this, &QDeclarativePathViewPrivate::setHighlightPosition)

    85         , highlightPosition(0)

    86         , highlightRangeStart(0), highlightRangeEnd(0)

    87         , highlightRangeMode(QDeclarativePathView::StrictlyEnforceRange)

    88         , highlightMoveDuration(300)

    89     {

    90     }

    91 

    92     void init()

    93     {

    94         Q_Q(QDeclarativePathView);

    95         offset = 0;

    96         q->setAcceptedMouseButtons(Qt::LeftButton);

    97         q->setFlag(QGraphicsItem::ItemIsFocusScope);

    98         q->setFiltersChildEvents(true);

    99         q->connect(&tl, SIGNAL(updated()), q, SLOT(ticked()));

   100     }

   101 

   102     QDeclarativeItem *getItem(int modelIndex);

   103     void releaseItem(QDeclarativeItem *item);

   104     QDeclarativePathViewAttached *attached(QDeclarativeItem *item);

   105     void clear();

   106     void updateMappedRange();

   107     qreal positionOfIndex(qreal index) const;

   108     void createHighlight();

   109     void updateHighlight();

   110     void setHighlightPosition(qreal pos);

   111     bool isValid() const {

   112         return model && model->count() > 0 && model->isValid() && path;

   113     }

   114 

   115     int calcCurrentIndex();

   116     void updateCurrent();

   117     static void fixOffsetCallback(void*);

   118     void fixOffset();

   119     void setOffset(qreal offset);

   120     void regenerate();

   121     void updateItem(QDeclarativeItem *, qreal);

   122     void snapToCurrent();

   123     QPointF pointNear(const QPointF &point, qreal *nearPercent=0) const;

   124 

   125     QDeclarativePath *path;

   126     int currentIndex;

   127     QDeclarativeGuard<QDeclarativeItem> currentItem;

   128     qreal currentItemOffset;

   129     qreal startPc;

   130     QPointF startPoint;

   131     qreal lastDist;

   132     int lastElapsed;

   133     qreal offset;

   134     qreal mappedRange;

   135     bool stealMouse : 1;

   136     bool ownModel : 1;

   137     bool interactive : 1;

   138     bool haveHighlightRange : 1;

   139     bool autoHighlight : 1;

   140     bool highlightUp : 1;

   141     QTime lastPosTime;

   142     QPointF lastPos;

   143     qreal dragMargin;

   144     qreal deceleration;

   145     QDeclarativeTimeLine tl;

   146     QDeclarativeTimeLineValueProxy<QDeclarativePathViewPrivate> moveOffset;

   147     int firstIndex;

   148     int pathItems;

   149     int requestedIndex;

   150     QList<QDeclarativeItem *> items;

   151     QDeclarativeGuard<QDeclarativeVisualModel> model;

   152     QVariant modelVariant;

   153     enum MovementReason { Other, SetIndex, Mouse };

   154     MovementReason moveReason;

   155     QDeclarativeOpenMetaObjectType *attType;

   156     QDeclarativeComponent *highlightComponent;

   157     QDeclarativeItem *highlightItem;

   158     QDeclarativeTimeLineValueProxy<QDeclarativePathViewPrivate> moveHighlight;

   159     qreal highlightPosition;

   160     qreal highlightRangeStart;

   161     qreal highlightRangeEnd;

   162     QDeclarativePathView::HighlightRangeMode highlightRangeMode;

   163     int highlightMoveDuration;

   164 };

   165 

   166 QT_END_NAMESPACE

   167 

   168 #endif