/*=========================================================================

  Program:   Visualization Toolkit
  Module:    BoxWidget2.cxx

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "vtkAppendPolyData.h"
#include "vtkBoxRepresentation.h"
#include "vtkBoxWidget2.h"
#include "vtkCamera.h"
#include "vtkCommand.h"
#include "vtkConeSource.h"
#include "vtkGlyph3D.h"
#include "vtkInteractorEventRecorder.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSmartPointer.h"
#include "vtkSphereSource.h"
#include "vtkTransform.h"
#include "vtkTransformFilter.h"

// Callback for the interaction
class vtkSBWCallback2 : public vtkCommand
{
public:
  static vtkSBWCallback2* New() { return new vtkSBWCallback2; }
  virtual void Execute(vtkObject* caller, unsigned long, void*)
  {
    vtkBoxWidget2* boxWidget = reinterpret_cast<vtkBoxWidget2*>(caller);
    vtkBoxRepresentation* boxRep =
      reinterpret_cast<vtkBoxRepresentation*>(boxWidget->GetRepresentation());
    boxRep->GetTransform(this->Transform);

    vtkCamera* camera = boxRep->GetRenderer()->GetActiveCamera();
    //    this->Actor->SetUserTransform(this->Transform);
  }
  vtkSBWCallback2()
    : Transform(0)
    , Actor(0)
  {
  }
  vtkTransform* Transform;
  vtkActor* Actor;
};

char ScaledBoxWidgetEventLog2[] = "# StreamVersion 1\n"
                                  "CharEvent 187 242 0 0 105 1 i\n"
                                  "KeyReleaseEvent 187 242 0 0 105 1 i\n";

int ScaledBoxWidget2(int, char*[])
{
  vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renWin = vtkSmartPointer<vtkRenderWindow>::New();
  renWin->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> iren =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  iren->SetRenderWindow(renWin);

  vtkSmartPointer<vtkConeSource> cone = vtkSmartPointer<vtkConeSource>::New();
  cone->SetResolution(6);
  vtkSmartPointer<vtkSphereSource> sphere = vtkSmartPointer<vtkSphereSource>::New();
  sphere->SetThetaResolution(8);
  sphere->SetPhiResolution(8);
  vtkSmartPointer<vtkGlyph3D> glyph = vtkSmartPointer<vtkGlyph3D>::New();
  glyph->SetInputConnection(sphere->GetOutputPort());
  glyph->SetSource(cone->GetOutput());
  glyph->SetVectorModeToUseNormal();
  glyph->SetScaleModeToScaleByVector();
  glyph->SetScaleFactor(0.25);
  glyph->Update();

  vtkSmartPointer<vtkAppendPolyData> append = vtkSmartPointer<vtkAppendPolyData>::New();
  append->AddInput(glyph->GetOutput());
  append->AddInput(sphere->GetOutput());

  vtkSmartPointer<vtkTransform> dataTransform = vtkSmartPointer<vtkTransform>::New();
  dataTransform->Identity();
  dataTransform->Scale(1, 2, 1);

  vtkSmartPointer<vtkTransformFilter> tf = vtkSmartPointer<vtkTransformFilter>::New();
  tf->SetTransform(dataTransform);
  tf->SetInputConnection(append->GetOutputPort());
  tf->Update();

  vtkSmartPointer<vtkPolyDataMapper> maceMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
  maceMapper->SetInputConnection(tf->GetOutputPort());

  vtkSmartPointer<vtkActor> maceActor = vtkSmartPointer<vtkActor>::New();
  maceActor->SetMapper(maceMapper);

  // Configure the box widget including callbacks
  vtkSmartPointer<vtkTransform> t = vtkSmartPointer<vtkTransform>::New();
  vtkSmartPointer<vtkSBWCallback2> myCallback = vtkSmartPointer<vtkSBWCallback2>::New();
  myCallback->Transform = t;
  myCallback->Actor = maceActor;

  vtkSmartPointer<vtkBoxRepresentation> boxRep = vtkSmartPointer<vtkBoxRepresentation>::New();
  boxRep->SetPlaceFactor(1.25);
  boxRep->PlaceWidget(tf->GetOutput()->GetBounds());

  vtkSmartPointer<vtkBoxWidget2> boxWidget = vtkSmartPointer<vtkBoxWidget2>::New();
  boxWidget->SetInteractor(iren);
  boxWidget->SetRepresentation(boxRep);
  boxWidget->AddObserver(vtkCommand::InteractionEvent, myCallback);
  boxWidget->SetPriority(1);

  renderer->AddActor(maceActor);
  renderer->SetBackground(0, 0, 0);
  renWin->SetSize(1024, 768);

  // Introduce scale to test out calculation of clipping range
  // by vtkRenderer.
  vtkSmartPointer<vtkTransform> scaleTransform = vtkSmartPointer<vtkTransform>::New();
  scaleTransform->SetInput(dataTransform);

  vtkCamera* camera = renderer->GetActiveCamera();
  camera->SetModelTransformMatrix(scaleTransform->GetMatrix());

  // record events
  vtkSmartPointer<vtkInteractorEventRecorder> recorder =
    vtkSmartPointer<vtkInteractorEventRecorder>::New();
  recorder->SetInteractor(iren);
  recorder->ReadFromInputStringOn();
  recorder->SetInputString(ScaledBoxWidgetEventLog2);

  // interact with data
  // render the image
  //
  iren->Initialize();
  renWin->Render();
  recorder->Play();

  // Remove the observers so we can go interactive. Without this the "-I"
  // testing option fails.
  recorder->Off();

  boxRep->SetPlaceFactor(1.0);
  boxRep->HandlesOff();

  boxRep->SetPlaceFactor(1.25);
  boxRep->HandlesOn();

  renderer->ResetCamera();
  iren->Start();

  return EXIT_SUCCESS;
}
