fwVtkWheelWidget.hpp

/* ***** BEGIN LICENSE BLOCK *****
 * FW4SPL - Copyright (C) IRCAD, 2017.
 * Distributed under the terms of the GNU Lesser General Public License (LGPL) as
 * published by the Free Software Foundation.
 * ****** END LICENSE BLOCK ****** */

#ifndef __FWRENDERVTK_VTK_FWVTKWHEELWIDGET_HPP__
#define __FWRENDERVTK_VTK_FWVTKWHEELWIDGET_HPP__

#include "fwRenderVTK/config.hpp"
#include "fwRenderVTK/vtk/fwVtkWheelRepresentation.hpp"

#include <vtkAbstractWidget.h>

#include <functional>

class FWRENDERVTK_CLASS_API fwVtkWheelWidget : public vtkAbstractWidget
{
public:

    FWRENDERVTK_API static fwVtkWheelWidget* New();

    vtkTypeMacro(fwVtkWheelWidget, vtkAbstractWidget);

    FWRENDERVTK_API void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;

    FWRENDERVTK_API void SetRepresentation(fwVtkWheelRepresentation* rep);

    FWRENDERVTK_API fwVtkWheelRepresentation* GetRepresentation() const;

    FWRENDERVTK_API void CreateDefaultRepresentation() VTK_OVERRIDE;

    FWRENDERVTK_API void SetWheelUpdateCallback(std::function<void (double, double, double)> f);

private:

    fwVtkWheelWidget();

    ~fwVtkWheelWidget() VTK_OVERRIDE
    {
    }

    static void SelectAction(vtkAbstractWidget*);

    static void MoveAction(vtkAbstractWidget*);

    static void EndSelectAction(vtkAbstractWidget*);

    enum _WidgetState
    {
        Start = 0,
        Hovering,
        Selecting,
        Rotating,
        Outside
    } WidgetState;

    fwVtkWheelWidget(const fwVtkWheelWidget&) VTK_DELETE_FUNCTION;
    void operator=(const fwVtkWheelWidget&) VTK_DELETE_FUNCTION;

    int m_initMouseX;
    int m_initMouseY;

    double m_initOrientation;

    std::function< void (double, double, double) > m_wheelUpdateCallback;
};

#endif // __FWRENDERVTK_VTK_FWVTKWHEELWIDGET_HPP__