summaryrefslogtreecommitdiffstats
path: root/tests/auto/xmlpatternssdk/TreeModel.cpp
blob: e27f8e00e727c85b1c4f661f0e30d1034f3b11c1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
/****************************************************************************
**
** 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 test suite 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtDebug>

#include "TestContainer.h"

#include "TreeModel.h"

using namespace QPatternistSDK;

TreeModel::TreeModel(const QStringList columnData,
                     QObject *p) : QAbstractItemModel(p),
                                   m_root(0),
                                   m_columnData(columnData)
{
}

TreeModel::~TreeModel()
{
}

QVariant TreeModel::data(const QModelIndex &idx, int role) const
{
    if(!idx.isValid())
        return QVariant();

    TreeItem *item = static_cast<TreeItem *>(idx.internalPointer());
    Q_ASSERT(item);

    return item->data(static_cast<Qt::ItemDataRole>(role), idx.column());
}

QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if(orientation == Qt::Horizontal && role == Qt::DisplayRole)
        return m_columnData.value(section);

    return QVariant();
}

void TreeModel::childChanged(TreeItem *item)
{
    if (item) {
        const QModelIndex index = createIndex(item->row(), 0, item);
        dataChanged(index, index);
    } else {
        layoutChanged();
    }
}

QModelIndex TreeModel::index(int row, int column, const QModelIndex &p) const
{
    const int c = columnCount(p);

    if(row < 0 || column < 0 || column >= c)
        return QModelIndex();

    TreeItem *parentItem;

    if(p.isValid())
        parentItem = static_cast<TreeItem *>(p.internalPointer());
    else
        parentItem = m_root;

    if(!parentItem)
        return QModelIndex();

    TreeItem *childItem = parentItem->child(row);

    if(childItem)
        return createIndex(row, column, childItem);
    else
        return QModelIndex();
}

QModelIndex TreeModel::parent(const QModelIndex &idx) const
{
    if(!idx.isValid())
        return QModelIndex();

    TreeItem *childItem = static_cast<TreeItem *>(idx.internalPointer());
    Q_ASSERT(childItem);
    TreeItem *parentItem = childItem->parent();

    if(!parentItem || parentItem == m_root)
        return QModelIndex();

    Q_ASSERT(parentItem);
    return createIndex(parentItem->row(), 0, parentItem);
}

Qt::ItemFlags TreeModel::flags(const QModelIndex &idx) const
{
    /* Not sure about this code. */
    if(!idx.isValid())
        return Qt::ItemFlags();

    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
}

int TreeModel::rowCount(const QModelIndex &p) const
{
    if(p.column() > 0)
        return 0;

    const TreeItem *parentItem;

    if(p.isValid())
        parentItem = static_cast<TreeItem *>(p.internalPointer());
    else
    {
        if(m_root)
            parentItem = m_root;
        else
            return 0;
    }

    return parentItem->childCount();
}

int TreeModel::columnCount(const QModelIndex &p) const
{
    if(p.isValid())
        return static_cast<TreeItem *>(p.internalPointer())->columnCount();
    else
        return m_columnData.count();
}

TreeItem *TreeModel::root() const
{
    return m_root;
}

void TreeModel::setRoot(TreeItem *r)
{
    TreeItem *const oldRoot = m_root;
    m_root = r;

    if(m_root)
        connect(r, SIGNAL(changed(TreeItem *)), SLOT(childChanged(TreeItem *)));
    reset(); /* Notify views that we have radically changed. */
    delete oldRoot;
}

// vim: et:ts=4:sw=4:sts=4