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+/**************************************************************************
+**
+** This file is part of Qt SDK**
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).*
+**
+** Contact:  Nokia Corporation qt-info@nokia.com**
+**
+** GNU Lesser General Public License Usage
+**
+** 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 are unsure which license is appropriate for your use, please contact
+** (qt-info@nokia.com).
+**
+**************************************************************************/
+#ifndef QINSTALLER_COMPONENTMODEL_H
+#define QINSTALLER_COMPONENTMODEL_H
+
+#include <QAbstractItemModel>
+#include <QList>
+
+#include "installer_global.h"
+
+namespace QInstaller {
+class Installer;
+class Component;
+
+class INSTALLER_EXPORT ComponentModel : public QAbstractItemModel
+{
+    Q_OBJECT
+public:
+    enum Role {
+        ComponentRole=Qt::UserRole,
+        IdRole
+    };
+
+    enum Column {
+        NameColumn=0,
+        InstalledVersionColumn,
+        VersionColumn,
+        SizeColumn
+    };
+
+    explicit ComponentModel( Installer* parent, RunModes runMode = InstallerMode);
+    ~ComponentModel();
+
+    QModelIndex index( int row, int column, const QModelIndex& parent = QModelIndex() ) const;
+    QModelIndex parent( const QModelIndex& index ) const;
+
+    int columnCount( const QModelIndex& parent = QModelIndex() ) const;
+    int rowCount( const QModelIndex& parent = QModelIndex() ) const;
+
+    Qt::ItemFlags flags( const QModelIndex& index ) const;
+
+    bool setData( const QModelIndex& index, const QVariant& data, int role = Qt::CheckStateRole );
+    QVariant data( const QModelIndex& index, int role = Qt::DisplayRole ) const;
+    QVariant headerData( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const;
+
+    static bool virtualComponentsVisible();
+    static void setVirtualComponentsVisible( bool visible );
+    
+    static QFont virtualComponentsFont();
+    static void setVirtualComponentsFont( const QFont& f );
+
+    QModelIndex findComponent( const QString& id ) const;
+Q_SIGNALS:
+    void workRequested( bool value );
+
+public Q_SLOTS:
+    void addComponents(QList< QInstaller::Component* > components );
+    void clear();
+
+private Q_SLOTS:
+    void componentAdded( QInstaller::Component* comp );
+    void selectedChanged( bool checked );
+
+private:
+    mutable QList< Component* > seenComponents;
+    QList< Component* > components;
+    RunModes m_runMode;
+};
+
+}
+
+#endif // QINSTALLER_COMPONENTMODEL_H