src/hbwidgets/itemviews/hbgridview_p.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 18:33:25 +0300
changeset 6 c3690ec91ef8
parent 2 06ff229162e9
child 23 e6ad4ef83b23
permissions -rw-r--r--
Revision: 201023 Kit: 2010125
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     1
/****************************************************************************
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     2
**
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     3
** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     4
** All rights reserved.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     5
** Contact: Nokia Corporation (developer.feedback@nokia.com)
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     6
**
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     7
** This file is part of the HbWidgets module of the UI Extensions for Mobile.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     8
**
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
     9
** GNU Lesser General Public License Usage
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    10
** This file may be used under the terms of the GNU Lesser General Public
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    11
** License version 2.1 as published by the Free Software Foundation and
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    12
** appearing in the file LICENSE.LGPL included in the packaging of this file.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    13
** Please review the following information to ensure the GNU Lesser General
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    14
** Public License version 2.1 requirements will be met:
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    15
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    16
**
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    17
** In addition, as a special exception, Nokia gives you certain additional
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    18
** rights.  These rights are described in the Nokia Qt LGPL Exception
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    19
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    20
**
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    21
** If you have questions regarding the use of this file, please contact
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    22
** Nokia at developer.feedback@nokia.com.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    23
**
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    24
****************************************************************************/
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    25
#include <hbgridview_p.h>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    26
#include <hbgridlayout_p.h>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    27
#include <hbgriditemcontainer_p.h>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    28
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    29
#include <hbgridviewitem.h>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    30
#include <hbscrollbar.h>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    31
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    32
#include "hbmodeliterator.h"
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    33
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    34
#include <QDebug>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    35
#include <QGraphicsView>
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    36
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    37
const QString KDefaultLayoutOption = "default";
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    38
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    39
HbGridViewPrivate::HbGridViewPrivate() : 
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    40
    mIconVisible(true), 
6
c3690ec91ef8 Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 2
diff changeset
    41
    mTextVisible(true),
c3690ec91ef8 Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 2
diff changeset
    42
    mSwapDimensionsOnOrientationChange(true)
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    43
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    44
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    45
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    46
HbGridViewPrivate::~HbGridViewPrivate()
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    47
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    48
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    49
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    50
void HbGridViewPrivate::init()
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    51
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    52
    Q_Q(HbGridView);
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
    53
    q->connect(q, SIGNAL(scrollDirectionsChanged(Qt::Orientations)),
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
    54
               q, SLOT(scrollDirectionChanged(Qt::Orientations)));
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    55
    mLayoutOptionName = KDefaultLayoutOption;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    56
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    57
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    58
/*
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    59
 Utility function to find a item under certain scene pixel
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    60
 */
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    61
QModelIndex HbGridViewPrivate::itemIndexUnder(const QPointF& point)
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    62
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    63
    Q_Q ( HbGridView );
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    64
    QModelIndex ret = QModelIndex();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    65
    HbAbstractViewItem* hitItem = 0;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    66
    QList<QGraphicsItem *> items = q->scene()->items(point);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    67
    if (!items.isEmpty()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    68
        int count(items.count());
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    69
        for (int current(0); current < count; ++current) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    70
            QGraphicsItem *item = items.at(current);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    71
            hitItem = viewItem(item);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    72
            if (hitItem && hitItem->modelIndex().isValid()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    73
                ret = hitItem->modelIndex();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    74
                break;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    75
            }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    76
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    77
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    78
    return ret;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    79
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    80
/*!
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    81
    \reimp
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    82
*/
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    83
bool HbGridViewPrivate::visible(HbAbstractViewItem* item, bool fullyVisible) const
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    84
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    85
    if (item && item->isVisible()
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    86
        && item->modelIndex().isValid()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    87
        return HbAbstractItemViewPrivate::visible(item, fullyVisible);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    88
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    89
    return false;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    90
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    91
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    92
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    93
void HbGridViewPrivate::setIconVisible(bool iconVisible)
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    94
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    95
    if (iconVisible != mIconVisible) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    96
        mIconVisible = iconVisible;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    97
        relayout();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    98
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
    99
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   100
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   101
void HbGridViewPrivate::setTextVisible(bool textVisible)
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   102
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   103
    if (textVisible != mTextVisible) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   104
        mTextVisible = textVisible;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   105
        relayout();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   106
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   107
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   108
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   109
void HbGridViewPrivate::relayout()
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   110
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   111
    QList<HbAbstractViewItem *> items = mContainer->items();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   112
    foreach (HbAbstractViewItem *item, items) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   113
        HbGridViewItem *gridItem = qobject_cast<HbGridViewItem *>(item);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   114
        if (gridItem) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   115
            gridItem->updateChildItems();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   116
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   117
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   118
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   119
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   120
qreal HbGridViewPrivate::calculateScrollBarPos() const
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   121
{
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   122
    // calculate thumb size and position
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   123
    Q_Q(const HbGridView);
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   124
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   125
    qreal thumbPos = 0.0;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   126
    int columnCount = getScrollDirectionColumnCount();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   127
    int rowCount = getScrollDirectionRowCount();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   128
    qreal containerPos = getScrollDirectionContainerPos();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   129
    qreal itemSize = getScrollDirectionItemSize();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   130
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   131
    // add coulmnCount-1 to indexCount to get remainder included in result (rounding up)
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   132
    int modelRowCount = (mModelIterator->indexCount() + columnCount - 1) / columnCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   133
    modelRowCount -= rowCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   134
    QModelIndex firstItem = mContainer->items().first()->modelIndex();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   135
    qreal firstVisibleRow = (qreal)(q->modelIterator()->indexPosition(firstItem)) / columnCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   136
    firstVisibleRow += -containerPos / itemSize; // applying container pos to get trully visible row 
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   137
    thumbPos = firstVisibleRow / (qreal)modelRowCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   138
    thumbPos = qBound((qreal)0.0, thumbPos, (qreal)1.0);
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   139
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   140
    return thumbPos;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   141
}
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   142
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   143
qreal HbGridViewPrivate::calculateScrollBarThumbSize() const
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   144
{
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   145
    // calculate thumb size and position
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   146
    qreal thumbSize = 0.0;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   147
    int columnCount = getScrollDirectionColumnCount();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   148
    int rowCount = getScrollDirectionRowCount();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   149
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   150
    // add coulmnCount-1 to indexCount to get remainder included in result (rounding up)
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   151
    int modelRowCount = (mModelIterator->indexCount() + columnCount - 1) / columnCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   152
    thumbSize = (qreal)rowCount / (qreal)modelRowCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   153
    thumbSize = qBound((qreal)0.0, thumbSize, (qreal)1.0);
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   154
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   155
    return thumbSize;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   156
}
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   157
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
/*!
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
    Overwrites the default scroll area scrollbar updating algorithm when
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
    recycling is used. On recycling the scrollbar position & size is calculated
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
    using rows and their pixel size is not used.
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
*/
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
void HbGridViewPrivate::updateScrollBar(Qt::Orientation orientation)
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
{
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   165
    if (!handleScrollBar(orientation)) {
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
        HbScrollAreaPrivate::updateScrollBar(orientation);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
    } else {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
        if (mContainer->layout() && !mContainer->layout()->isActivated()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
            mContainer->layout()->activate();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   172
        qreal thumbPos = calculateScrollBarPos();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   173
        HbScrollBar *scrollBar = getScrollDirectionScrollBar();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   174
        scrollBar->setValue(thumbPos);
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   178
/*!
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   179
    \reimp
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   180
*/
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   181
void HbGridViewPrivate::setScrollBarMetrics(Qt::Orientation orientation)
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
{
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   183
    if (!handleScrollBar(orientation)) {
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   184
        HbScrollAreaPrivate::setScrollBarMetrics(orientation);
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   185
    } else {
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   186
        if (mContainer->layout() && !mContainer->layout()->isActivated()) {
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   187
            mContainer->layout()->activate();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   188
        }
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   190
        qreal thumbSize = calculateScrollBarThumbSize();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   191
        HbScrollBar *scrollBar = getScrollDirectionScrollBar();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   192
        scrollBar->setPageSize(thumbSize);
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   193
    }
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   196
/*!
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   197
    \reimp
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   198
*/
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   199
void HbGridViewPrivate::setContentPosition(qreal value, Qt::Orientation orientation, bool animate)
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
    Q_Q( HbGridView );
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
    if (mContainer->itemRecycling() && mModelIterator->model()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
        if (mContainer->layout() && !mContainer->layout()->isActivated()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
            mContainer->layout()->activate();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   208
        int columnCount = getScrollDirectionColumnCount();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   209
        int rowCount = getScrollDirectionRowCount();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   210
        int modelRowCount = (mModelIterator->indexCount() + columnCount - 1) / columnCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   211
        modelRowCount -= rowCount;
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   212
        qreal thumbPos = calculateScrollBarPos();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   213
        qreal itemSize = getScrollDirectionItemSize();
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   214
        qreal diff = (value - thumbPos) * itemSize * modelRowCount;
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
        if (orientation == Qt::Vertical) {
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   217
            q->scrollByAmount(QPointF(0, diff));
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
        } else {
1
f7ac710697a9 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   219
            q->scrollByAmount(QPointF(diff, 0));
0
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
    } else {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   222
        HbScrollAreaPrivate::setContentPosition(value, orientation, animate);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
}
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
QModelIndex HbGridViewPrivate::indexInTheCenter(Qt::Orientations scrollDirection) const
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   227
{
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   228
    Q_Q(const HbGridView);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   229
    QModelIndex centerViewModelIndex; // nearest to center of the screen
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   230
    if (!mContainer->items().isEmpty()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
        qreal centerPos;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   232
        HbGridItemContainer *container = itemContainer();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   233
        if (scrollDirection == Qt::Vertical) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   234
            // calculating row:
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   235
            centerPos = -container->pos().y() + q->boundingRect().height() / 2
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   236
                        // take rather item that is just above of view center instead of bottom one
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   237
                        - container->viewLayout()->effectiveSizeHint(Qt::MinimumSize).height() / 2;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   238
            // calculate item row
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   239
            centerPos /= container->viewLayout()->effectiveSizeHint(Qt::MinimumSize).height();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   240
            //calculate item index
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   241
            centerPos *= itemContainer()->columnCount();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   242
            // go to center column
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   243
            centerPos += itemContainer()->columnCount() / 2;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   244
        } else {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   245
            // calculating row:
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   246
            centerPos = -container->pos().x() + q->boundingRect().width() / 2
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   247
                        // take rather item that is just on the left of view center instead of right one
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   248
                        - container->viewLayout()->effectiveSizeHint(Qt::MinimumSize).width() / 2;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   249
            // calculate buffer row
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   250
            centerPos /= container->viewLayout()->effectiveSizeHint(Qt::MinimumSize).width();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   251
            //calculate item index
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   252
            centerPos *= itemContainer()->rowCount();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   253
            // go to center row
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   254
            centerPos += itemContainer()->rowCount() / 2;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   255
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   256
        int centerIndex = qRound(centerPos);
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   257
        if (centerIndex >= container->items().size()) {
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   258
            centerIndex = container->items().size() / 2;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   259
        }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   260
        centerViewModelIndex = container->items().at(centerIndex)->modelIndex();
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   261
    }
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   262
    return centerViewModelIndex;
16d8024aca5e Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   263
}