tests/auto/xmlpatternsxqts/lib/TreeModel.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/xmlpatternsxqts/lib/TreeModel.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,184 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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