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** 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
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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#pragma once

#include "stackframe.h"

#include <QAbstractItemModel>

namespace Utils { class ItemViewEvent; }

namespace Debugger {
namespace Internal {

class DebuggerEngine;

enum StackColumns
{
    StackLevelColumn,
    StackFunctionNameColumn,
    StackFileNameColumn,
    StackLineNumberColumn,
    StackAddressColumn,
    StackColumnCount
};

class StackHandler : public QAbstractTableModel
{
    Q_OBJECT

public:
    explicit StackHandler(DebuggerEngine *engine);
    ~StackHandler() override;

    void setFrames(const StackFrames &frames, bool canExpand = false);
    void setFramesAndCurrentIndex(const GdbMi &frames, bool isFull);
    int updateTargetFrame(bool isFull);
    void prependFrames(const StackFrames &frames);
    const StackFrames &frames() const;
    void setCurrentIndex(int index);
    int currentIndex() const { return m_currentIndex; }
    int firstUsableIndex() const;
    StackFrame currentFrame() const;
    const StackFrame &frameAt(int index) const { return m_stackFrames.at(index); }
    int stackSize() const { return m_stackFrames.size(); }
    quint64 topAddress() const { return m_stackFrames.at(0).address; }

    // Called from StackHandler after a new stack list has been received
    void removeAll();
    QAbstractItemModel *model() { return this; }
    bool isContentsValid() const { return m_contentsValid; }
    void scheduleResetLocation();
    void resetLocation();

signals:
    void stackChanged();
    void currentIndexChanged();

private:
    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
    QVariant data(const QModelIndex &index, int role) const override;
    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
    Qt::ItemFlags flags(const QModelIndex &index) const override;
    bool setData(const QModelIndex &idx, const QVariant &data, int role) override;

    bool contextMenuEvent(const Utils::ItemViewEvent &event);
    void resetModel() { beginResetModel(); endResetModel(); }
    void reloadFullStack();
    void copyContentsToClipboard();
    void saveTaskFile();

    DebuggerEngine *m_engine;
    StackFrames m_stackFrames;
    int m_currentIndex = -1;
    bool m_canExpand = false;
    bool m_resetLocationScheduled = false;
    bool m_contentsValid = false;
};

} // namespace Internal
} // namespace Debugger
