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#ifndef CPPTYPEHIERARCHY_H
#define CPPTYPEHIERARCHY_H

#include <coreplugin/inavigationwidgetfactory.h>

#include <QString>
#include <QWidget>
#include <QStackedWidget>

QT_BEGIN_NAMESPACE
class QStandardItemModel;
class QStandardItem;
class QModelIndex;
class QLabel;
template <class> class QVector;
template <class> class QList;
QT_END_NAMESPACE

namespace Core { class IEditor; }

namespace Utils {
class NavigationTreeView;
class AnnotatedItemDelegate;
}

namespace CppEditor {
namespace Internal {

class CPPEditorWidget;
class CppClass;
class CppClassLabel;

class CppTypeHierarchyWidget : public QWidget
{
    Q_OBJECT
public:
    CppTypeHierarchyWidget();
    virtual ~CppTypeHierarchyWidget();

public slots:
    void perform();

private slots:
    void onItemClicked(const QModelIndex &index);

private:
    typedef QList<CppClass> CppClass::*HierarchyMember;
    void buildHierarchy(const CppClass &cppClass, QStandardItem *parent,
                        bool isRoot, HierarchyMember member);
    void showNoTypeHierarchyLabel();
    void showTypeHierarchy();
    void clearTypeHierarchy();

    CPPEditorWidget *m_cppEditor;
    Utils::NavigationTreeView *m_treeView;
    QStandardItemModel *m_model;
    Utils::AnnotatedItemDelegate *m_delegate;
    CppClassLabel *m_inspectedClass;
    QLabel *m_noTypeHierarchyAvailableLabel;
};

// @todo: Pretty much the same design as the OutlineWidgetStack. Maybe we can generalize the
// outline factory so that it works for different widgets that support the same editor.
class CppTypeHierarchyStackedWidget : public QStackedWidget
{
    Q_OBJECT
public:
    CppTypeHierarchyStackedWidget(QWidget *parent = 0);
    virtual ~CppTypeHierarchyStackedWidget();

private:
    CppTypeHierarchyWidget *m_typeHiearchyWidgetInstance;
};

class CppTypeHierarchyFactory : public Core::INavigationWidgetFactory
{
    Q_OBJECT
public:
    CppTypeHierarchyFactory();
    virtual ~CppTypeHierarchyFactory();

    virtual QString displayName() const;
    virtual int priority() const;
    virtual Core::Id id() const;
    virtual QKeySequence activationSequence() const;
    virtual Core::NavigationView createWidget();
};

} // namespace Internal
} // namespace CppEditor

#endif // CPPTYPEHIERARCHY_H
