Long live Qt 4.5!

8 files changed, 1957 insertions, 0 deletions

diff --git a/tools/qconfig/LICENSE.GPL b/tools/qconfig/LICENSE.GPL
new file mode 100644
index 0000000..b6e1c33
--- /dev/null
+++ b/tools/qconfig/LICENSE.GPL
@@ -0,0 +1,280 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
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+  To protect your rights, we need to make restrictions that forbid
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+These restrictions translate to certain responsibilities for you if you
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+
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+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
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+
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+that everyone understands that there is no warranty for this free
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+
+  Finally, any free program is threatened constantly by software
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+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
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+
+These requirements apply to the modified work as a whole.  If
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+In addition, mere aggregation of another work not based on the Program
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+
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+If any portion of this section is held invalid or unenforceable under
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+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
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+be similar in spirit to the present version, but may differ in detail to
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+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
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+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
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+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+		     END OF TERMS AND CONDITIONS
diff --git a/tools/qconfig/feature.cpp b/tools/qconfig/feature.cpp
new file mode 100644
index 0000000..829573a
--- /dev/null
+++ b/tools/qconfig/feature.cpp
@@ -0,0 +1,240 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "feature.h"
+#include <QTextStream>
+#include <QRegExp>
+#include <QLibraryInfo>
+#include <QFileInfo>
+#include <QApplication>
+#include <QPalette>
+
+QT_BEGIN_NAMESPACE
+
+QMap<QString, Feature*> Feature::instances;
+
+Feature* Feature::getInstance(const QString &key)
+{
+    QString ukey = key.toUpper();
+    if (!instances.contains(ukey))
+        instances[ukey] = new Feature(ukey);
+    return instances[ukey];
+}
+
+Feature::~Feature()
+{
+    delete d;
+}
+
+void Feature::clear()
+{
+    foreach (Feature *f, instances.values())
+        delete f;
+    instances.clear();
+}
+
+static QString listToHtml(const QString &title, const QStringList &list)
+{
+    if (list.isEmpty())
+	return QString();
+
+    QString str;
+    QTextStream stream(&str);
+
+    stream << "<h3>" << title << ":</h3>";
+    stream << "<ul>";
+    foreach (QString l, list)
+	stream << "<li>" << l << "</li>";
+    stream << "</ul>";
+
+    return str;
+}
+
+static QString listToHtml(const QString &title, const QList<Feature*> &list)
+{
+    QStringList stringlist;
+    foreach (Feature *f, list) {
+        QString s("[%3] <a href=\"feature://%1\">%2</a>");
+        s = s.arg(f->key()).arg(f->key());
+        s = s.arg(f->selectable() && f->enabled() ? "On" : "Off");
+        stringlist << s;
+    }
+    return listToHtml(title, stringlist);
+}
+
+static QString linkify(const QString &src)
+{
+    static QRegExp classRegexp("\\b(Q[\\w]+)");
+    QString docRoot = QLibraryInfo::location(QLibraryInfo::DocumentationPath);
+    QString result = src;
+    int pos = 0;
+    while ((pos = classRegexp.indexIn(result, pos)) != -1) {
+        QString className = classRegexp.cap(1);
+        QString file = docRoot + "/html/" + className.toLower() + ".html";
+        QFileInfo info(file);
+        if (info.isFile()) {
+            QString link = QString("<a href=\"file://%1\">%2</a>")
+                           .arg(file).arg(className);
+            result.replace(pos, className.length(), link);
+            pos += link.length();
+        } else {
+            pos += className.length();
+        }
+    }
+
+    return result;
+}
+
+QString Feature::toHtml() const
+{
+    QString str;
+    QTextStream stream(&str);
+
+    const QString linkColor = QApplication::palette().color(QPalette::Link).name();
+    stream << "<h2><font size=\"+2\" color=\"" << linkColor << "\">"
+           << key() << "</font></h2>"
+	   << "<h2><font size=\"+2\">" << title() << "</font></h2>";
+    if (!description().isEmpty())
+        stream << "<p>" << description() << "</p>";
+    stream << listToHtml("Section", QStringList(section()))
+	   << listToHtml("Requires", dependencies())
+	   << listToHtml("Required for", supports())
+	   << listToHtml("See also", relations());
+
+    return linkify(str);
+}
+
+Feature::Feature(const QString &key) : d(new FeaturePrivate(key)) {}
+
+void Feature::setTitle(const QString &title)
+{
+    d->title = title;
+}
+
+void Feature::setSection(const QString &section)
+{
+    d->section = section;
+}
+
+void Feature::setDescription(const QString &description)
+{
+    d->description = description;
+}
+
+void Feature::addRelation(const QString &key)
+{
+    d->relations.insert(getInstance(key));
+}
+
+void Feature::setRelations(const QStringList &keys)
+{
+    foreach(QString key, keys)
+        if (key != "???")
+            addRelation(key);
+}
+
+QList<Feature*> Feature::relations() const
+{
+    return d->relations.toList();
+}
+
+void Feature::addDependency(const QString &key)
+{
+    Feature *f = getInstance(key);
+    d->dependencies.insert(f);
+    f->d->supports.insert(this);
+}
+
+void Feature::setDependencies(const QStringList &keys)
+{
+    foreach(QString key, keys)
+        addDependency(key);
+}
+
+QList<Feature*> Feature::dependencies() const
+{
+    return d->dependencies.toList();
+}
+
+QList<Feature*> Feature::supports() const
+{
+    return d->supports.toList();
+}
+
+/*
+    Returns a html formatted detailed description of this Feature.
+*/
+QString Feature::getDocumentation() const
+{
+    return QString() + "<h2>" + d->title + "</h2>";
+
+}
+
+void Feature::setEnabled(bool on)
+{
+    if (on == d->enabled)
+        return;
+
+    d->enabled = on;
+    foreach (Feature *f, supports())
+	f->updateSelectable();
+    emit changed();
+}
+
+/*
+  Update whether this feature should be selectable.
+  A feature is selectable if all its dependencies are enabled.
+*/
+void Feature::updateSelectable()
+{
+    bool selectable = true;
+    foreach (Feature *f, dependencies())
+        if (!f->selectable() || !f->enabled())
+            selectable = false;
+    if (selectable != d->selectable) {
+        d->selectable = selectable;
+        foreach (Feature *f, supports())
+            f->updateSelectable();
+        emit changed();
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/tools/qconfig/feature.h b/tools/qconfig/feature.h
new file mode 100644
index 0000000..8e502ee
--- /dev/null
+++ b/tools/qconfig/feature.h
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef FEATURE_H
+#define FEATURE_H
+
+#include <QString>
+#include <QStringList>
+#include <QMap>
+#include <QSet>
+#include <QList>
+
+QT_BEGIN_NAMESPACE
+
+class Feature;
+
+class FeaturePrivate
+{
+public:
+    FeaturePrivate(const QString &k)
+	: key(k), enabled(true), selectable(true) {};
+    
+    const QString key;
+    QString section;
+    QString title;
+    QString description;
+    QSet<Feature*> dependencies;
+    QSet<Feature*> supports; // features who depends on this one
+    QSet<Feature*> relations;
+    bool enabled;
+    bool selectable;
+};
+
+class Feature : public QObject
+{
+    Q_OBJECT    
+
+public:
+    static Feature* getInstance(const QString &key);
+    static void clear();
+
+public:
+    QString key() const { return d->key; }
+
+    void setTitle(const QString &title);
+    QString title() const { return d->title; }
+
+    void setSection(const QString &section);
+    QString section() const { return d->section; }
+
+    void setDescription(const QString &description);    
+    QString description() const { return d->description; };
+
+    void addRelation(const QString &key);
+    void setRelations(const QStringList &keys);
+    QList<Feature*> relations() const;    
+
+    void addDependency(const QString &dependency);
+    void setDependencies(const QStringList &dependencies);
+    QList<Feature*> dependencies() const;
+
+    QList<Feature*> supports() const;    
+    QString getDocumentation() const;
+
+    void setEnabled(bool on);
+    bool enabled() const { return d->enabled; };
+
+    bool selectable() const { return d->selectable; }
+    
+    QString toHtml() const;    
+    
+    ~Feature();    
+
+signals:
+    void changed();
+    
+private:
+    Feature(const QString &key);
+    void updateSelectable();
+    
+    static QMap<QString, Feature*> instances;
+    FeaturePrivate *d;
+};
+
+QT_END_NAMESPACE
+
+#endif // FEATURE_H
diff --git a/tools/qconfig/featuretreemodel.cpp b/tools/qconfig/featuretreemodel.cpp
new file mode 100644
index 0000000..2bd5f00
--- /dev/null
+++ b/tools/qconfig/featuretreemodel.cpp
@@ -0,0 +1,451 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "featuretreemodel.h"
+#include "feature.h"
+#include <QPalette>
+#include <QColor>
+#include <QApplication>
+#include <QtDebug>
+
+QT_BEGIN_NAMESPACE
+
+class Node
+{
+public:
+    Node(Feature *f, Node *p = 0) : feature(f), parent(p) {}
+    ~Node();
+    Node* find(const Feature *child) const;
+    bool contains(const Feature *child) const { return find(child) != 0; }
+    bool insert(Node *n);
+
+    Feature *feature;
+    Node *parent;
+    QList<Node*> children; // maybe convert to Map to get keys sorted
+};
+
+Node::~Node()
+{
+    while (!children.isEmpty())
+        delete children.takeFirst();
+}
+
+Node* Node::find(const Feature *f) const
+{
+    if (this->feature == f)
+	return const_cast<Node*>(this);
+
+    foreach (Node *n, children)
+	if (Node *m = n->find(f))
+	    return m;
+
+    return 0;
+}
+
+static bool nodePtrLessThan(const Node *n1, const Node *n2)
+{
+    return (n1->feature->key() < n2->feature->key());
+}
+
+/*
+  Try insert \a n into the tree with this node as root.
+  n is inserted as a child if it has a dependency to this node.
+  Returns true if child is inserted into the tree, false otherwise.
+*/
+bool Node::insert(Node *n)
+{
+    Feature *f = const_cast<Feature*>(n->feature);
+    if (feature->supports().contains(f)) {
+        children.append(n);
+	qSort(children.begin(), children.end(), nodePtrLessThan);
+	n->parent = this;
+        return true;
+    }
+    foreach (Node *child, children)
+        if (child->insert(n))
+            return true;
+    return false;
+}
+
+static bool isSection(const QModelIndex &index)
+{
+    return index.isValid() && (index.internalId() == 0);
+}
+
+FeatureTreeModel::FeatureTreeModel(QObject *parent)
+    : QAbstractItemModel(parent)
+{
+}
+
+FeatureTreeModel::~FeatureTreeModel()
+{
+    foreach (QString section, sections.keys())
+	while (!sections[section].isEmpty())
+	    delete sections[section].takeFirst();
+}
+
+/*
+  Returns true if the model already contains \a in \a section, false otherwise.
+*/
+bool FeatureTreeModel::contains(const QString &section, const Feature *f) const
+{
+    return (find(section, f) != 0);
+}
+
+Node* FeatureTreeModel::find(const QString &section, const Feature *f) const
+{
+    QList<Node*> roots = sections[section];
+    foreach (Node *root, roots)
+        if (Node *n = root->find(f))
+            return n;
+    return 0;
+}
+
+/*
+  Add new \a feature to the tree.
+  When all feature is added, buildTree() must be called to build the
+  dependency tree.
+*/
+void FeatureTreeModel::addFeature(Feature *feature)
+{
+    const QString section = feature->section();
+    Q_ASSERT(!contains(section, feature));
+
+    connect(feature, SIGNAL(changed()), this, SLOT(featureChanged()));
+
+    Node *node = new Node(feature, 0);
+
+    // try insert any toplevel nodes as child of this one
+    foreach (Node *n, sections[section])
+	if (node->insert(n))
+	    sections[section].removeAll(n);
+
+    // try insert this node as a child of any existing node
+    foreach (Node *n, sections[section])
+	if (n->insert(node)) {
+            emit layoutChanged();
+	    return;
+        }
+
+    // not a child, insert as a toplevel node
+    sections[section].append(node);
+    qSort(sections[section].begin(), sections[section].end(), nodePtrLessThan);
+    emit layoutChanged();
+}
+
+QModelIndex FeatureTreeModel::createIndex(int row, int column,
+					  const QModelIndex &parent,
+					  const Node *node) const
+{
+    QModelIndex index = QAbstractItemModel::createIndex(row, column,
+							(void*)node);
+    if (parent.isValid())
+	parentMap[index] = parent;
+    if (node)
+        featureIndexMap[node->feature] = index;
+    return index;
+}
+
+QModelIndex FeatureTreeModel::index(int row, int column,
+                                    const QModelIndex &parent) const
+{
+    if (!parent.isValid()) { // index is a section
+        if (row < sections.size() && column == 0)
+            return QAbstractItemModel::createIndex(row, column, 0);
+	return QModelIndex();
+    }
+
+    if (isSection(parent)) { // index is a toplevel feature
+        const int parentRow = parent.row();
+        if (parentRow < sections.size()) {
+            QString section = sections.keys().at(parentRow);
+	    QList<Node*> nodes = sections[section];
+            if (row < nodes.size() && column < 2)
+                return createIndex(row, column, parent, nodes.at(row));
+        }
+	return QModelIndex();
+    }
+
+    // parent is a feature
+    Node *parentNode = static_cast<Node*>(parent.internalPointer());
+    QList<Node*> children = parentNode->children;
+    if (row < children.size() && column < 2)
+	return createIndex(row, column, parent, children.at(row));
+
+    return QModelIndex();
+}
+
+QModelIndex FeatureTreeModel::index(const QModelIndex &parent,
+                                    const Feature *feature) const
+{
+    const int rows = rowCount(parent);
+    for (int i = 0; i < rows; ++i) {
+        QModelIndex child = index(i, 0, parent);
+        Node *node = static_cast<Node*>(child.internalPointer());
+        if (node && node->feature == feature)
+            return child;
+        QModelIndex childSearch = index(child, feature);
+        if (childSearch.isValid())
+            return childSearch;
+    }
+    return QModelIndex();
+}
+
+QModelIndex FeatureTreeModel::index(const Feature *feature) const
+{
+    if (featureIndexMap.contains(feature))
+        return featureIndexMap.value(feature);
+
+    // exhaustive search
+    int sectionRow = sections.keys().indexOf(feature->section());
+    QModelIndex sectionIndex = index(sectionRow, 0, QModelIndex());
+
+    return index(sectionIndex, feature);
+}
+
+QModelIndex FeatureTreeModel::parent(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return QModelIndex();
+
+    if (parentMap.contains(index))
+	return parentMap.value(index);
+    return QModelIndex();
+}
+
+int FeatureTreeModel::rowCount(const QModelIndex &parent) const
+{
+    if (!parent.isValid())
+        return sections.size();
+
+    if (isSection(parent)) {
+	const QString section = sections.keys().at(parent.row());
+	return sections[section].size();
+    }
+
+    const Node *node = static_cast<Node*>(parent.internalPointer());
+    return node->children.size();
+}
+
+int FeatureTreeModel::columnCount(const QModelIndex &parent) const
+{
+#if 0
+    if (!parent.isValid())
+        return 0;
+
+    if (isSection(parent))
+       return 1;
+#endif
+    Q_UNUSED(parent);
+    return 2; // Feature: [key, name]
+}
+
+QVariant FeatureTreeModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+
+    const Node *node = static_cast<Node*>(index.internalPointer());
+
+    switch (role) {
+	case Qt::DisplayRole: {
+	    if (node == 0)  // index is a section
+		return sections.keys().at(index.row());
+	    if (index.column() == 0)
+		return node->feature->key();
+	    Q_ASSERT(index.column() == 1);
+	    return node->feature->title();
+	}
+	case Qt::CheckStateRole: {
+	    if (node && index.column() == 0)
+		return (node->feature->enabled() ?
+			Qt::Checked : Qt::Unchecked);
+	    break;
+	}
+	case Qt::TextColorRole: {
+	    if (node && index.column() == 0)  // feature key
+		if (node->feature->selectable())
+		    return QApplication::palette().color(QPalette::Link);
+	    break;
+	}
+	case Qt::TextAlignmentRole:
+	case Qt::BackgroundColorRole:
+	case Qt::FontRole:
+	case Qt::ToolTipRole: // TODO
+	case Qt::StatusTipRole: // TODO
+	case Qt::WhatsThisRole: // TODO
+	case Qt::DecorationRole:
+	case Qt::EditRole:
+ 	default:
+	    break;
+    }
+    return QVariant();
+}
+
+bool FeatureTreeModel::setData(const QModelIndex &index,
+                               const QVariant &value, int role)
+{
+    if (!index.isValid())
+        return false;
+
+    Node *node = static_cast<Node*>(index.internalPointer());
+    if (!node)
+        return false;
+
+    if (role == Qt::CheckStateRole) {
+        Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt());
+        if (state == Qt::Checked)
+            node->feature->setEnabled(true);
+        else if (state == Qt::Unchecked)
+            node->feature->setEnabled(false);
+        emit dataChanged(index, index);
+        return true;
+    }
+    return false;
+}
+
+Qt::ItemFlags FeatureTreeModel::flags(const QModelIndex &index) const
+{
+    if (!index.isValid() || index.internalPointer() == 0)
+	return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+
+    const Node *node = static_cast<Node*>(index.internalPointer());
+    const Feature *feature = node->feature;
+    Qt::ItemFlags flags = Qt::ItemIsUserCheckable | Qt::ItemIsSelectable;
+
+    if (feature->selectable())
+	flags |= Qt::ItemIsEnabled;
+
+    return flags;
+}
+
+QVariant FeatureTreeModel::headerData(int section, Qt::Orientation orientation,
+				      int role) const
+{
+    if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
+        if (section == 0)
+            return QString("Id");
+        else if (section == 1)
+            return QString("Name");
+    }
+
+    return QVariant();
+}
+
+Feature* FeatureTreeModel::getFeature(const QModelIndex &index) const
+{
+    if (!index.isValid())
+	return 0;
+    if (isSection(index))
+	return 0;
+    Node *node = static_cast<Node*>(index.internalPointer());
+    return const_cast<Feature*>(node->feature);
+}
+
+void FeatureTreeModel::featureChanged()
+{
+    Feature *feature = qobject_cast<Feature*>(sender());
+    if (feature) {
+        QModelIndex featureIndex = index(feature);
+        emit dataChanged(featureIndex, featureIndex);
+    } else {
+        emit layoutChanged();
+    }
+}
+
+void FeatureTreeModel::readConfig(QTextStream &stream)
+{
+    static QRegExp regexp("\\s*#\\s*define\\s+QT_NO_(\\S+)\\s*");
+
+    while (!stream.atEnd()) {
+	QString line = stream.readLine();
+        if (regexp.exactMatch(line)) {
+            Feature *f = Feature::getInstance(regexp.cap(1));
+            f->setEnabled(false);
+        }
+    }
+}
+/*
+  Search for all disabled child features of \a parent.
+  Returns a list of feature keys for the disabled items.
+*/
+QStringList FeatureTreeModel::findDisabled(const QModelIndex &parent) const
+{
+    QStringList stringList;
+
+    const int rows = rowCount(parent);
+    for (int i = 0; i < rows; ++i) {
+        QModelIndex child = index(i, 0, parent);
+        Node *node = static_cast<Node*>(child.internalPointer());
+        if (node && node->feature && !node->feature->enabled())
+            stringList << node->feature->key();
+        stringList << findDisabled(child);
+    }
+    return stringList;
+}
+
+void FeatureTreeModel::writeConfig(QTextStream &stream) const
+{
+    const int sectionCount = rowCount(QModelIndex());
+
+    for (int i = 0; i < sectionCount; ++i) {
+        QModelIndex section = index(i, 0, QModelIndex());
+        QStringList disabled = findDisabled(section);
+        if (disabled.size() > 0) {
+            stream << '\n' << "/* " << sections.keys().at(i) << " */" << '\n';
+            foreach (QString feature, disabled)
+                stream << "#ifndef QT_NO_" << feature << '\n'
+                       << "#  define QT_NO_" << feature << '\n'
+                       << "#endif" << '\n';
+        }
+    }
+}
+
+void FeatureTreeModel::clear()
+{
+    Feature::clear();
+    sections.clear();
+    parentMap.clear();
+    featureIndexMap.clear();
+    emit layoutChanged();
+}
+
+QT_END_NAMESPACE
diff --git a/tools/qconfig/featuretreemodel.h b/tools/qconfig/featuretreemodel.h
new file mode 100644
index 0000000..965d363
--- /dev/null
+++ b/tools/qconfig/featuretreemodel.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef FEATURETREEMODEL_H
+#define FEATURETREEMODEL_H
+
+#include <QAbstractItemModel>
+#include <QMap>
+#include <QHash>
+#include <QTextStream>
+
+QT_BEGIN_NAMESPACE
+
+class Feature;
+class Node;
+
+uint qHash(const QModelIndex&);
+
+class FeatureTreeModel : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    FeatureTreeModel(QObject *parent = 0);
+    ~FeatureTreeModel();
+
+    void clear();
+    
+    QVariant data(const QModelIndex &index, int role) const;
+    bool setData(const QModelIndex &index, const QVariant &value, int role);
+    Qt::ItemFlags flags(const QModelIndex &index) const;
+    QVariant headerData(int section, Qt::Orientation orientation,
+                        int role = Qt::DisplayRole) const;
+    QModelIndex index(int row, int column,
+                      const QModelIndex &parent = QModelIndex()) const;
+    QModelIndex index(const Feature *feature) const;    
+    QModelIndex parent(const QModelIndex &index) const;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+
+    void addFeature(Feature *feature);    
+    Feature* getFeature(const QModelIndex &index) const;
+
+    void readConfig(QTextStream &stream);
+    void writeConfig(QTextStream &stream) const;
+    
+public slots:
+    void featureChanged();
+    
+private:
+    QModelIndex createIndex(int row, int column,
+                            const QModelIndex &parent,
+                            const Node *feature) const;    
+    QModelIndex index(const QModelIndex &parent, const Feature *feature) const;
+    bool contains(const QString &section, const Feature *f) const;
+    Node* find(const QString &section, const Feature *f) const;
+    QStringList findDisabled(const QModelIndex &parent) const;    
+    
+    QMap<QString, QList<Node*> > sections;
+    mutable QHash<QModelIndex, QModelIndex> parentMap;
+    mutable QHash<const Feature*, QModelIndex> featureIndexMap;    
+};
+
+QT_END_NAMESPACE
+
+#endif // FEATURETREEMODEL_H
diff --git a/tools/qconfig/graphics.h b/tools/qconfig/graphics.h
new file mode 100644
index 0000000..a67aced
--- /dev/null
+++ b/tools/qconfig/graphics.h
@@ -0,0 +1,195 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GRAPHICS_H
+#define GRAPHICS_H
+
+static const char *logo_xpm[] = {
+/* width height ncolors chars_per_pixel */
+"50 50 17 1",
+/* colors */
+"  c #000000",
+". c #495808",
+"X c #2A3304",
+"o c #242B04",
+"O c #030401",
+"+ c #9EC011",
+"@ c #93B310",
+"# c #748E0C",
+"$ c #A2C511",
+"% c #8BA90E",
+"& c #99BA10",
+"* c #060701",
+"= c #181D02",
+"- c #212804",
+"; c #61770A",
+": c #0B0D01",
+"/ c None",
+/* pixels */
+"/$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$/",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$+++$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$@;.o=::=o.;@$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$+#X*         **X#+$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$#oO*         O  **o#+$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$&.* OO              O*.&$$$$$$$$$$$$$",
+"$$$$$$$$$$$$@XOO            * OO    X&$$$$$$$$$$$$",
+"$$$$$$$$$$$@XO OO  O  **:::OOO OOO   X@$$$$$$$$$$$",
+"$$$$$$$$$$&XO      O-;#@++@%.oOO      X&$$$$$$$$$$",
+"$$$$$$$$$$.O  :  *-#+$$$$$$$$+#- : O O*.$$$$$$$$$$",
+"$$$$$$$$$#*OO  O*.&$$$$$$$$$$$$+.OOOO **#$$$$$$$$$",
+"$$$$$$$$+-OO O *;$$$$$$$$$$$&$$$$;*     o+$$$$$$$$",
+"$$$$$$$$#O*  O .+$$$$$$$$$$@X;$$$+.O    *#$$$$$$$$",
+"$$$$$$$$X*    -&$$$$$$$$$$@- :;$$$&-    OX$$$$$$$$",
+"$$$$$$$@*O  *O#$$$$$$$$$$@oOO**;$$$#    O*%$$$$$$$",
+"$$$$$$$;     -+$$$$$$$$$@o O OO ;+$$-O   *;$$$$$$$",
+"$$$$$$$.     ;$$$$$$$$$@-OO OO  X&$$;O    .$$$$$$$",
+"$$$$$$$o    *#$$$$$$$$@o  O O O-@$$$#O   *o$$$$$$$",
+"$$$$$$+=    *@$$$$$$$@o* OO   -@$$$$&:    =$$$$$$$",
+"$$$$$$+:    :+$$$$$$@-      *-@$$$$$$:    :+$$$$$$",
+"$$$$$$+:    :+$$$$$@o* O    *-@$$$$$$:    :+$$$$$$",
+"$$$$$$$=    :@$$$$@o*OOO      -@$$$$@:    =+$$$$$$",
+"$$$$$$$-    O%$$$@o* O O    O O-@$$$#*   OX$$$$$$$",
+"$$$$$$$. O *O;$$&o O*O* *O      -@$$;    O.$$$$$$$",
+"$$$$$$$;*   Oo+$$;O*O:OO--      Oo@+=    *;$$$$$$$",
+"$$$$$$$@*  O O#$$$;*OOOo@@-O     Oo;O*  **@$$$$$$$",
+"$$$$$$$$X* OOO-+$$$;O o@$$@-    O O     OX$$$$$$$$",
+"$$$$$$$$#*  * O.$$$$;X@$$$$@-O O        O#$$$$$$$$",
+"$$$$$$$$+oO O OO.+$$+&$$$$$$@-O         o+$$$$$$$$",
+"$$$$$$$$$#*    **.&$$$$$$$$$$@o      OO:#$$$$$$$$$",
+"$$$$$$$$$+.   O* O-#+$$$$$$$$+;O    OOO:@$$$$$$$$$",
+"$$$$$$$$$$&X  *O    -;#@++@#;=O    O    -@$$$$$$$$",
+"$$$$$$$$$$$&X O     O*O::::O      OO    Oo@$$$$$$$",
+"$$$$$$$$$$$$@XOO                  OO    O*X+$$$$$$",
+"$$$$$$$$$$$$$&.*       **  O      ::    *:#$$$$$$$",
+"$$$$$$$$$$$$$$$#o*OO       O    Oo#@-OOO=#$$$$$$$$",
+"$$$$$$$$$$$$$$$$+#X:* *     O**X#+$$@-*:#$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$%;.o=::=o.#@$$$$$$@X#$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$+++$$$$$$$$$$$+$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$",
+"/$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$/",
+};
+
+static const char *expanded_xpm[] = {
+"32 32 3 1",
+"  c None",
+"# c #000000",
+"a c #0000c0",
+" ##                             ",
+" ##                             ",
+" #############aaaaaaaaaaaaa     ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #aaaaaaaaaaaaa     ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" #############aaaaaaaaaaaaa     ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #aaaaaaaaaaaaa     ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" #############aaaaaaaaaaaaa     ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  ",
+" ##          #                  "};
+
+static const char *collapsed_xpm[] = {
+"32 32 3 1",
+"  c None",
+"# c #000000",
+"a c #0000c0",
+" ##                             ",
+" ##                             ",
+" ##aaaaaaaaaaaaaaaaaa           ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##aaaaaaaaaaaaaaaaaa           ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##aaaaaaaaaaaaaaaaaa           ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##aaaaaaaaaaaaaaaaaa           ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             ",
+" ##                             "};
+
+#endif // GRAPHICS_H
diff --git a/tools/qconfig/main.cpp b/tools/qconfig/main.cpp
new file mode 100644
index 0000000..dd53e09
--- /dev/null
+++ b/tools/qconfig/main.cpp
@@ -0,0 +1,552 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "graphics.h"
+#include "feature.h"
+#include "featuretreemodel.h"
+
+#include <QtGui>
+
+QT_BEGIN_NAMESPACE
+
+static QString defaultPath;
+
+class FeatureTextBrowser : public QTextBrowser {
+    Q_OBJECT
+public:
+    FeatureTextBrowser(QWidget *parent) : QTextBrowser(parent) {
+        QString docRoot;
+        docRoot = QLibraryInfo::location(QLibraryInfo::DocumentationPath)
+                  + "/html";
+        setSearchPaths(searchPaths() << docRoot);
+    }
+
+signals:
+    void featureClicked(const QString &feature);
+
+public slots:
+    void setSource(const QUrl &url)
+    {
+        if (url.scheme() == "feature")
+            emit featureClicked(url.authority());
+        else
+            QTextBrowser::setSource(url);
+    }
+};
+
+class Main : public QMainWindow {
+    Q_OBJECT
+public:
+    Main();
+    ~Main();
+    void loadFeatures(const QString& filename);
+    void loadConfig(const QString& filename);
+
+public slots:
+    void modelChanged();
+    void showInfo(const QModelIndex &index);
+    void showInfo(const QString &feature);
+    void openConfig();
+    void saveConfig();
+    void expandView();
+    void collapseView();
+    void about();
+    void aboutQt();
+    void quit();
+    void clear();
+    void enableAll();
+    void disableAll();
+
+private:
+    QTextBrowser *textBrowser;
+    QTreeView *featureTree;
+    FeatureTreeModel *featureModel;
+
+    void init();
+    void updateStatus(int numFeatures = -1);
+    void completelyExpandIndex(const QModelIndex &parent);
+};
+
+template<typename Func>
+void foreachIndex_helper(const QModelIndex &parent, Func func)
+{
+    const QAbstractItemModel *model = parent.model();
+    const int rows = model->rowCount(parent);
+    for (int i = 0; i < rows; ++i) {
+        const QModelIndex child = model->index(i, 0, parent);
+        func(child);
+        foreachIndex_helper(child, func);
+    }
+}
+
+template<typename Func>
+void foreachIndex(const QAbstractItemModel *model, Func func)
+{
+    const int rows = model->rowCount(QModelIndex());
+    for (int i = 0; i < rows; ++i) {
+        const QModelIndex child = model->index(i, 0, QModelIndex());
+        func(child);
+        foreachIndex_helper(child, func);
+    }
+}
+
+struct CheckStateSetter {
+
+    CheckStateSetter(Qt::CheckState state, QAbstractItemModel *m)
+        : checkState(state), model(m) {}
+
+    void operator()(const QModelIndex &index) {
+        model->setData(index, checkState, Qt::CheckStateRole);
+    }
+
+    Qt::CheckState checkState;
+    QAbstractItemModel *model;
+};
+
+void Main::disableAll()
+{
+    QAbstractItemModel *model = featureTree->model();
+    foreachIndex(model, CheckStateSetter(Qt::Unchecked, model));
+}
+
+void Main::enableAll()
+{
+    QAbstractItemModel *model = featureTree->model();
+    foreachIndex(model, CheckStateSetter(Qt::Checked, model));
+}
+
+Main::Main()
+{
+    setWindowIcon(QIcon(QPixmap(logo_xpm)));
+
+    QSplitter *splitter = new QSplitter(this);
+
+    featureModel = new FeatureTreeModel(this);
+    featureTree = new QTreeView(splitter);
+    splitter->addWidget(featureTree);
+    featureTree->setRootIsDecorated(true);
+    featureTree->setModel(featureModel);
+    featureTree->show();
+
+    textBrowser = new FeatureTextBrowser(splitter);
+    textBrowser->setFrameStyle(QFrame::WinPanel|QFrame::Sunken);
+    splitter->addWidget(textBrowser);
+    textBrowser->show();
+
+    connect(textBrowser, SIGNAL(featureClicked(const QString&)),
+            this, SLOT(showInfo(const QString&)));
+    connect(featureTree, SIGNAL(activated(QModelIndex)),
+	    this, SLOT(showInfo(QModelIndex)));
+    connect(featureModel, SIGNAL(dataChanged(QModelIndex, QModelIndex)),
+            this, SLOT(modelChanged()));
+    connect(featureTree, SIGNAL(clicked(QModelIndex)),
+            this, SLOT(showInfo(QModelIndex)));
+
+    setCentralWidget(splitter);
+
+    QMenu *file = menuBar()->addMenu("&File");
+    file->addAction("&Open...", this, SLOT(openConfig()),
+                    Qt::CTRL + Qt::Key_O);
+    file->addAction("&Save As...", this, SLOT(saveConfig()),
+                    Qt::CTRL + Qt::Key_S);
+    file->addSeparator();
+    file->addAction("&Reset",  this, SLOT(clear()));
+    file->addSeparator();
+    file->addAction("E&xit",  this, SLOT(quit()), Qt::CTRL + Qt::Key_Q);
+
+    QMenu *edit = menuBar()->addMenu("&Tools");
+    edit->addAction("&Enable all features", this, SLOT(enableAll()));
+    edit->addAction("&Disable all features", this, SLOT(disableAll()));
+
+    menuBar()->addSeparator();
+
+    QMenu *help = menuBar()->addMenu("&Help");
+    help->addAction("&About", this, SLOT(about()));
+    help->addAction("About &Qt", this, SLOT(aboutQt()));
+
+    QToolBar *tb = new QToolBar("Expand/Collapse features");
+    QToolButton *button;
+
+    button = new QToolButton(tb);
+    button->setIcon(QIcon(QPixmap(collapsed_xpm)));
+    button->setText("Collapse");
+    button->setToolTip("Collapse");
+    connect(button, SIGNAL(clicked()), this, SLOT(collapseView()));
+    tb->addWidget(button);
+
+    button = new QToolButton(tb);
+    button->setIcon(QIcon(QPixmap(expanded_xpm)));
+    button->setText("Expand");
+    button->setToolTip("Expand");
+    connect(button, SIGNAL(clicked()), this, SLOT(expandView()));
+    tb->addWidget(button);
+    addToolBar(tb);
+
+    init();
+}
+
+Main::~Main()
+{
+    delete textBrowser;
+    delete featureModel;
+    delete featureTree;
+}
+
+void Main::clear()
+{
+    QSettings settings;
+    settings.clear();
+    featureModel->clear();
+    featureTree->reset();
+    init();
+}
+
+void Main::quit()
+{
+    if (isWindowModified()) {
+        int button = QMessageBox::question(this, "Quit Program",
+                                           "You have unsaved changes.\n"
+                                           "Do you want to quit anyway?",
+                                           QMessageBox::Yes,
+                                           QMessageBox::No);
+        if (static_cast<QMessageBox::Button>(button) != QMessageBox::Yes)
+            return;
+    }
+    QApplication::instance()->quit();
+}
+
+/*
+  Recursively expand expand \a parent and all of its children.
+*/
+void Main::completelyExpandIndex(const QModelIndex &parent)
+{
+    featureTree->setExpanded(parent, true);
+
+    const QAbstractItemModel *model = featureTree->model();
+    const int rows = model->rowCount(parent);
+    for (int i = 0; i < rows; ++i)
+        completelyExpandIndex(model->index(i, 0, parent));
+}
+
+void Main::expandView()
+{
+    completelyExpandIndex(QModelIndex());
+}
+
+void Main::collapseView()
+{
+    const QAbstractItemModel *model = featureTree->model();
+    const int rows = model->rowCount(QModelIndex());
+    for (int i = 0; i < rows; ++i) {
+        QModelIndex index = model->index(i, 0, QModelIndex());
+        featureTree->setExpanded(index, false);
+    }
+}
+
+void Main::updateStatus(int numFeatures)
+{
+    QSettings settings;
+    QString featureFile = settings.value("featureFile").toString();
+    QString configFile = settings.value("lastConfig").toString();
+    QString message("Using features from %1");
+
+    if (numFeatures >= 0) {
+        QString s("%1 features loaded from %2");
+        statusBar()->showMessage(s.arg(numFeatures).arg(featureFile));
+    }
+    QString appName = QApplication::applicationName();
+    if (configFile.isEmpty())
+        configFile = "New File";
+    setWindowTitle(appName + " - " + configFile + "[*]");
+}
+
+void Main::modelChanged()
+{
+    setWindowModified(true);
+}
+
+void Main::init()
+{
+    QSettings settings;
+    QString features = settings.value("featureFile").toString();
+
+    if (features.isEmpty() || !QFileInfo(features).isFile()) {
+        features = QFileDialog::getOpenFileName(this,
+                                                "Open a feature file",
+                                                defaultPath,
+                                                "Qt Features (qfeatures.txt)");
+    }
+    settings.setValue("featureFile", features);
+    loadFeatures(features);
+
+    expandView();
+    collapseView();
+
+    QString confFile = settings.value("lastConfig").toString();
+    if (confFile.isEmpty())
+        return;
+    loadConfig(confFile);
+}
+
+void Main::openConfig()
+{
+    QSettings settings;
+    QString configDir;
+
+    QString prevFile = settings.value("lastConfig").toString();
+    if (!prevFile.isEmpty())
+        configDir = QFileInfo(prevFile).path();
+
+    if (configDir.isEmpty())
+        configDir = defaultPath;
+
+    QString configFile;
+    configFile = QFileDialog::getOpenFileName(this,
+                                              "Open a configuration file",
+                                              configDir,
+                                              "Header files (*.h)");
+    enableAll();
+    if (!configFile.isEmpty())
+        loadConfig(configFile);
+    settings.setValue("lastConfig", QFileInfo(configFile).absoluteFilePath());
+}
+
+void Main::saveConfig()
+{
+    QSettings settings;
+    QString configDir;
+
+    QString prevFile = settings.value("lastConfig").toString();
+    if (!prevFile.isEmpty())
+        configDir = QFileInfo(prevFile).path();
+
+    if (configDir.isEmpty())
+        configDir = defaultPath;
+
+    QString configFile;
+    configFile = QFileDialog::getSaveFileName(this,
+                                              "Save configuration file",
+                                              configDir,
+                                              "Header files (*.h)");
+    if (configFile.isEmpty())
+        return;
+
+    QFile file(configFile);
+    if (!file.open(QIODevice::WriteOnly)) {
+	QMessageBox::warning(this,"Warning",
+                             "Cannot write to file " + configFile);
+	return;
+    }
+
+    QTextStream stream(&file);
+    FeatureTreeModel *model;
+    model = static_cast<FeatureTreeModel*>(featureTree->model());
+    model->writeConfig(stream);
+
+    settings.setValue("lastConfig", QFileInfo(configFile).absoluteFilePath());
+    setWindowModified(false);
+    updateStatus();
+}
+
+void Main::loadConfig(const QString &filename)
+{
+    if (!QFileInfo(filename).isFile())
+	return;
+
+    QFile file(filename);
+    if (!file.open(QIODevice::ReadOnly)) {
+	QMessageBox::warning(this,"Warning", "Cannot open file " + filename);
+	return;
+    }
+
+    QTextStream stream(&file);
+    FeatureTreeModel *model;
+    model = static_cast<FeatureTreeModel*>(featureTree->model());
+    model->readConfig(stream);
+
+    QSettings settings;
+    settings.setValue("lastConfig", QFileInfo(filename).absoluteFilePath());
+    setWindowModified(false);
+    updateStatus();
+}
+
+void Main::loadFeatures(const QString &filename)
+{
+    Feature::clear();
+
+    QFile file(filename);
+    if (!file.open(QIODevice::ReadOnly)) {
+	QMessageBox::warning(this,"Warning", "Cannot open file " + filename);
+	return;
+    }
+
+    Feature *feature = 0;
+    int numFeatures = 0;
+    updateStatus(numFeatures);
+    QTextStream s(&file);
+    for (QString line = s.readLine(); !s.atEnd(); line = s.readLine()) {
+	line = line.simplified();
+	if (line.isEmpty())
+	    continue;
+	if (line.startsWith('#'))
+	    continue;
+
+	int colon = line.indexOf(':');
+	if (colon < 0) { // assume description
+            QString description = feature->description().simplified();
+            description += " " + line;
+            feature->setDescription(description);
+	    continue;
+	}
+
+	QString tag = line.left(colon);
+	QString value = line.mid(colon+1).simplified();
+	if (tag == "Feature") {
+            if (feature)
+                featureModel->addFeature(feature);
+            feature = Feature::getInstance(value);
+            updateStatus(++numFeatures);
+	} else if (tag == "Requires") {
+            Q_ASSERT(feature);
+            feature->setDependencies(value.split(' ', QString::SkipEmptyParts));
+	} else if (tag == "Name") {
+	    Q_ASSERT(feature);
+            feature->setTitle(value);
+	} else if (tag == "Section") {
+	    Q_ASSERT(feature);
+            feature->setSection(value);
+	} else if (tag == "SeeAlso") {
+	    Q_ASSERT(feature);
+            feature->setRelations(value.split(' ', QString::SkipEmptyParts));
+        } else if (tag == "Description") {
+            Q_ASSERT(feature);
+            feature->setDescription(value);
+	}
+    }
+    if (feature)
+        featureModel->addFeature(feature);
+
+    featureTree->resizeColumnToContents(0);
+
+    QSettings settings;
+    settings.setValue("featureFile", QFileInfo(filename).absoluteFilePath());
+
+    updateStatus();
+}
+
+void Main::showInfo(const QModelIndex &index)
+{
+    FeatureTreeModel *model;
+    model = static_cast<FeatureTreeModel*>(featureTree->model());
+
+    if (const Feature *feature = model->getFeature(index))
+	textBrowser->setHtml(feature->toHtml());
+
+    // Ensure index is visible
+    QModelIndex parent = model->parent(index);
+    while (parent.isValid()) {
+        featureTree->setExpanded(parent, true);
+        parent = model->parent(parent);
+    }
+
+    featureTree->scrollTo(index);
+    featureTree->setCurrentIndex(index);
+}
+
+void Main::showInfo(const QString &feature)
+{
+    const Feature *f = Feature::getInstance(feature);
+    FeatureTreeModel *model;
+    model = static_cast<FeatureTreeModel*>(featureTree->model());
+    showInfo(model->index(f));
+}
+
+void Main::about()
+{
+    QMessageBox::about(this, "About qconfig",
+	"<p><b><font size=\"+2\">Qtopia Core build configuration</font></b></p>"
+	"<p></p>"
+	"<p>Version 2.0</p>"
+	"<p>Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).</p>"
+	"<p></p>"
+	"<p>This program is licensed to you under the terms of the GNU General "
+	"Public License Version 2 as published by the Free Software Foundation. This "
+	"gives you legal permission to copy, distribute and/or modify this software "
+	"under certain conditions. For details, see the file 'LICENSE.GPL' that came with "
+	"this software distribution. If you did not get the file, send email to "
+	"qt-info@nokia.com.</p>\n\n<p>The program is provided AS IS with NO WARRANTY "
+	"OF ANY KIND, INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS "
+	"FOR A PARTICULAR PURPOSE.</p>"
+    );
+}
+
+void Main::aboutQt()
+{
+    QMessageBox::aboutQt( this, tr("qconfig") );
+}
+
+QT_END_NAMESPACE
+
+int main(int argc, char** argv)
+{
+    QT_USE_NAMESPACE
+    QApplication app(argc,argv);
+    app.setOrganizationDomain("trolltech.com");
+    app.setOrganizationName("Trolltech");
+    app.setApplicationName("QConfig");
+    Main m;
+
+    defaultPath = QLibraryInfo::location(QLibraryInfo::PrefixPath)
+                  + "/src/corelib/global";
+
+    for (int i = 1; i < argc; ++i) {
+	QString arg = argv[i];
+	if (arg == "-f" && i+1 < argc)
+            m.loadFeatures(argv[++i]);
+	else if (arg == "-c" && i+1 < argc)
+            m.loadConfig(argv[++i]);
+    }
+    m.resize(m.sizeHint() + QSize(500,300));
+    m.show();
+    return app.exec();
+}
+
+#include "main.moc"
diff --git a/tools/qconfig/qconfig.pro b/tools/qconfig/qconfig.pro
new file mode 100644
index 0000000..efbfcf2
--- /dev/null
+++ b/tools/qconfig/qconfig.pro
@@ -0,0 +1,10 @@
+TEMPLATE	= app
+CONFIG		+= qt warn_on
+build_all:!build_pass {
+    CONFIG -= build_all
+    CONFIG += release
+}
+HEADERS		= feature.h featuretreemodel.h graphics.h
+SOURCES		= main.cpp feature.cpp featuretreemodel.cpp
+INTERFACES	=
+TARGET		= qconfig