Adding ./doc from boost

Reviewer: Lauro Moura <lauro.neto@openbossa.org>
          Luciano Wolf <luciano.wolf@openbossa.org>

doc/codesnippets/examples/itemviews/simpledommodel/dommodel.cpp

@@ -0,0 +1,188 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtXml>
+
+#include "domitem.h"
+#include "dommodel.h"
+
+//! [0]
+DomModel::DomModel(QDomDocument document, QObject *parent)
+    : QAbstractItemModel(parent), domDocument(document)
+{
+    rootItem = new DomItem(domDocument, 0);
+}
+//! [0]
+
+//! [1]
+DomModel::~DomModel()
+{
+    delete rootItem;
+}
+//! [1]
+
+//! [2]
+def columnCount(self, parent):
+    return 3
+//! [2]
+
+//! [3]
+QVariant DomModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+
+    if (role != Qt::DisplayRole)
+        return QVariant();
+
+    DomItem *item = static_cast<DomItem*>(index.internalPointer());
+
+    QDomNode node = item->node();
+//! [3] //! [4]
+    QStringList attributes;
+    QDomNamedNodeMap attributeMap = node.attributes();
+
+    switch (index.column()) {
+        case 0:
+            return node.nodeName();
+        case 1:
+            for (int i = 0; i < attributeMap.count(); ++i) {
+                QDomNode attribute = attributeMap.item(i);
+                attributes << attribute.nodeName() + "=\""
+                              +attribute.nodeValue() + "\"";
+            }
+            return attributes.join(" ");
+        case 2:
+            return node.nodeValue().split("\n").join(" ");
+        default:
+            return QVariant();
+    }
+}
+//! [4]
+
+//! [5]
+Qt::ItemFlags DomModel::flags(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return 0;
+
+    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+}
+//! [5]
+
+//! [6]
+QVariant DomModel::headerData(int section, Qt::Orientation orientation,
+                              int role) const
+{
+    if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
+        switch (section) {
+            case 0:
+                return tr("Name");
+            case 1:
+                return tr("Attributes");
+            case 2:
+                return tr("Value");
+            default:
+                return QVariant();
+        }
+    }
+
+    return QVariant();
+}
+//! [6]
+
+//! [7]
+QModelIndex DomModel::index(int row, int column, const QModelIndex &parent)
+            const
+{
+    if (!hasIndex(row, column, parent))
+        return QModelIndex();
+
+    DomItem *parentItem;
+
+    if (!parent.isValid())
+        parentItem = rootItem;
+    else
+        parentItem = static_cast<DomItem*>(parent.internalPointer());
+//! [7]
+
+//! [8]
+    DomItem *childItem = parentItem->child(row);
+    if (childItem)
+        return createIndex(row, column, childItem);
+    else
+        return QModelIndex();
+}
+//! [8]
+
+//! [9]
+QModelIndex DomModel::parent(const QModelIndex &child) const
+{
+    if (!child.isValid())
+        return QModelIndex();
+
+    DomItem *childItem = static_cast<DomItem*>(child.internalPointer());
+    DomItem *parentItem = childItem->parent();
+
+    if (!parentItem || parentItem == rootItem)
+        return QModelIndex();
+
+    return createIndex(parentItem->row(), 0, parentItem);
+}
+//! [9]
+
+//! [10]
+int DomModel::rowCount(const QModelIndex &parent) const
+{
+    if (parent.column() > 0)
+        return 0;
+
+    DomItem *parentItem;
+
+    if (!parent.isValid())
+        parentItem = rootItem;
+    else
+        parentItem = static_cast<DomItem*>(parent.internalPointer());
+
+    return parentItem->node().childNodes().count();
+}
+//! [10]