/******************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
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** $QT_END_LICENSE$
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******************************************************************************/

#ifndef AXESINPUTHANDLER_H
#define AXESINPUTHANDLER_H

#include <QtDataVisualization/Q3DInputHandler>
#include <QtDataVisualization/QAbstract3DGraph>
#include <QtDataVisualization/QValue3DAxis>

using namespace QtDataVisualization;

//! [0]
class AxesInputHandler : public Q3DInputHandler
//! [0]
{
    Q_OBJECT

    enum InputState {
        StateNormal = 0,
        StateDraggingX,
        StateDraggingZ,
        StateDraggingY
    };

public:
    explicit AxesInputHandler(QAbstract3DGraph *graph, QObject *parent = 0);

    inline void setAxes(QValue3DAxis *axisX, QValue3DAxis *axisZ, QValue3DAxis *axisY) {
        m_axisX = axisX;
        m_axisZ = axisZ;
        m_axisY = axisY;
    }

    //! [1]
    inline void setDragSpeedModifier(float modifier) { m_speedModifier = modifier; }
    //! [1]

    virtual void mousePressEvent(QMouseEvent *event, const QPoint &mousePos);
    virtual void mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos);
    virtual void mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos);

private:
    void handleElementSelected(QAbstract3DGraph::ElementType type);
    void handleAxisDragging();

private:
    bool m_mousePressed;
    InputState m_state;
    QValue3DAxis *m_axisX;
    QValue3DAxis *m_axisZ;
    QValue3DAxis *m_axisY;
    float m_speedModifier;
};

#endif