imstkVTKInteractorStyle.cpp

/*
** This file is part of the Interactive Medical Simulation Toolkit (iMSTK)
** iMSTK is distributed under the Apache License, Version 2.0.
** See accompanying NOTICE for details.
*/

#include "imstkVTKInteractorStyle.h"
#include "imstkKeyboardDeviceClient.h"
#include "imstkMouseDeviceClient.h"

#include <vtkObjectFactory.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderWindow.h>

namespace imstk
{
vtkStandardNewMacro(VTKInteractorStyle);

VTKInteractorStyle::VTKInteractorStyle() :
    m_keyboardDeviceClient(KeyboardDeviceClient::New()),
    m_mouseDeviceClient(MouseDeviceClient::New())
{
}

VTKInteractorStyle::~VTKInteractorStyle()
{
    this->SetReferenceCount(0);
}

void
VTKInteractorStyle::OnKeyPress()
{
    // Submit the change to the keyboard device client
    m_keyboardDeviceClient->emitKeyDown(this->Interactor->GetKeyCode());
}

void
VTKInteractorStyle::OnKeyRelease()
{
    // Submit the change to the keyboard device client
    m_keyboardDeviceClient->emitKeyUp(this->Interactor->GetKeyCode());
}

void
VTKInteractorStyle::OnMouseMove()
{
    Vec2i mousePos;
    this->Interactor->GetEventPosition(mousePos[0], mousePos[1]);
    Vec2i dim;
    Interactor->GetSize(dim[0], dim[1]);
    m_mouseDeviceClient->updateMousePos(mousePos.cast<double>().cwiseQuotient(dim.cast<double>()));
}

void
VTKInteractorStyle::OnLeftButtonDown()
{
    m_mouseDeviceClient->emitButtonPress(LEFT_BUTTON);
}

void
VTKInteractorStyle::OnLeftButtonUp()
{
    m_mouseDeviceClient->emitButtonRelease(LEFT_BUTTON);
}

void
VTKInteractorStyle::OnMiddleButtonDown()
{
    m_mouseDeviceClient->emitButtonPress(MIDDLE_BUTTON);
}

void
VTKInteractorStyle::OnMiddleButtonUp()
{
    m_mouseDeviceClient->emitButtonRelease(MIDDLE_BUTTON);
}

void
VTKInteractorStyle::OnRightButtonDown()
{
    m_mouseDeviceClient->emitButtonPress(RIGHT_BUTTON);
}

void
VTKInteractorStyle::OnRightButtonUp()
{
    m_mouseDeviceClient->emitButtonRelease(RIGHT_BUTTON);
}

void
VTKInteractorStyle::OnMouseWheelForward()
{
    // \todo: VTK provides no scroll amount?
    m_mouseDeviceClient->emitScroll(-0.2);
}

void
VTKInteractorStyle::OnMouseWheelBackward()
{
    // \todo: VTK provides no scroll amount?
    m_mouseDeviceClient->emitScroll(0.2);
}
} // namespace imstk