/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
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** accordance with the commercial license agreement provided with the
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#pragma once

#include "cppeditor.h"
#include "cppeditorwidget.h"

#include <texteditor/ioutlinewidget.h>

#include <utils/navigationtreeview.h>

#include <QSortFilterProxyModel>

namespace CPlusPlus { class OverviewModel; }

namespace CppEditor {
namespace Internal {

class CppOutlineTreeView : public Utils::NavigationTreeView
{
    Q_OBJECT
public:
    CppOutlineTreeView(QWidget *parent);

    void contextMenuEvent(QContextMenuEvent *event);
};

class CppOutlineFilterModel : public QSortFilterProxyModel
{
    Q_OBJECT
public:
    CppOutlineFilterModel(CPlusPlus::OverviewModel *sourceModel, QObject *parent);
    // QSortFilterProxyModel
    bool filterAcceptsRow(int sourceRow,
                          const QModelIndex &sourceParent) const;
    Qt::DropActions supportedDragActions() const;
private:
    CPlusPlus::OverviewModel *m_sourceModel;
};

class CppOutlineWidget : public TextEditor::IOutlineWidget
{
    Q_OBJECT
public:
    CppOutlineWidget(CppEditorWidget *editor);

    // IOutlineWidget
    virtual QList<QAction*> filterMenuActions() const;
    virtual void setCursorSynchronization(bool syncWithCursor);

private:
    void modelUpdated();
    void updateSelectionInTree(const QModelIndex &index);
    void updateTextCursor(const QModelIndex &index);
    void onItemActivated(const QModelIndex &index);
    bool syncCursor();

private:
    CppEditorWidget *m_editor;
    CppOutlineTreeView *m_treeView;
    CPlusPlus::OverviewModel *m_model;
    CppOutlineFilterModel *m_proxyModel;

    bool m_enableCursorSync;
    bool m_blockCursorSync;
};

class CppOutlineWidgetFactory : public TextEditor::IOutlineWidgetFactory
{
    Q_OBJECT
public:
    bool supportsEditor(Core::IEditor *editor) const;
    TextEditor::IOutlineWidget *createWidget(Core::IEditor *editor);
};

} // namespace Internal
} // namespace CppEditor