1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef HGINDEXFEEDBACKPRIVATE_H

    19 #define HGINDEXFEEDBACKPRIVATE_H

    20 

    21 #include "hgindexfeedback.h"

    22 #include <hbwidget_p.h>

    23 

    24 #define HB_INDEXFEEDBACK_TYPE "indexfeedback"

    25 #define EFFECT_IFAPPEAR "appear"

    26 #define EFFECT_IFDISAPPEAR "disappear"

    27 

    28 QT_BEGIN_NAMESPACE

    29 class QGraphicsWidget;

    30 class QGraphicsItem;

    31 class QRectF;

    32 class QItemSelectionModel;

    33 QT_END_NAMESPACE

    34 

    35 class HgIndexFeedbackPrivate : public HbWidgetPrivate

    36 {

    37     Q_DECLARE_PUBLIC( HgIndexFeedback )

    38 

    39 public:

    40     HgIndexFeedbackPrivate();

    41     virtual ~HgIndexFeedbackPrivate();

    42     void init();

    43 

    44     void showIndexFeedback();

    45     void updateIndex();

    46 

    47     void scrollBarPressed();

    48     void scrollBarReleased();

    49 

    50     void connectScrollBarToIndexFeedback(HbScrollBar* scrollBar);

    51     void disconnectItemView();

    52     void connectModelToIndexFeedback(QItemSelectionModel* model);

    53 

    54     void _q_scrollPositionChanged(qreal value, Qt::Orientation orientation);

    55     void _q_hideIndexFeedback();

    56     void _q_itemViewDestroyed();

    57     void _q_hideIndexFeedbackNow();

    58     void _q_currentModelIndexChanged(const QModelIndex& current, const QModelIndex& previous);

    59 

    60     void updatePrimitives();

    61     void createPrimitives();

    62 

    63     void calculatePopupRects();

    64     qreal textHeight() const;

    65     qreal textWidth() const;

    66 

    67     QString displayText(const QVariant &data) const;

    68 

    69 public:

    70     int mIndexFeedbackPressTimeout;

    71     int mIndexFeedbackDwellTimeout;

    72     int mIndexFeedbackReleaseTimeout;

    73     HgWidget::IndexFeedbackPolicy mIndexFeedbackPolicy;

    74 

    75     // TODO::The values are storred here is a work around for a bug in hbscrollbar.

    76     // the bug is that the value changed signal is emitted when the thumb

    77     // is pressed, and again when it is released, regaurdless of if there was a value change.

    78     // once that bug is fixed, this should be removed.

    79     qreal mScrollBarValue;

    80 

    81     QTimer *mIndexFeedbackTimer;

    82     QTimer *mDisappearTimer;

    83 

    84     QString mPopupContent;

    85     QGraphicsItem *mTextItem;

    86     QGraphicsItem *mPopupItem;

    87 

    88     QRectF mPopupTextRect;

    89     QRectF mPopupBackgroundRect;

    90     QRectF mItemViewContentsRect;

    91 

    92     qreal mOneCharHeight;

    93     qreal mThreeCharHeight;

    94     qreal mThreeCharWidth;

    95     qreal mStringOffset;

    96 

    97     HgWidget* mWidget;

    98     QList<QGraphicsItem*> mPopupItemList;

    99     bool mScrollBarPressed;

   100 };

   101 

   102 #endif //HBINDEXFEEDBACKPRIVATE_H