// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause AND Apache-2.0
//
// This example tests the PickingManager using a scene full of seed widgets.
// It measures the performances using the Picking manager into different modes:
// * Disabled
// * Enabled
// * With/Without cache optimization
//
// The test depends on:
// * vtkSeedWidget
// * vtkSphereHandleRepresentation
//
// By default the Picking Manager is enabled.
// Press 'Ctrl' to switch the activation of the Picking Manager.
// Press 'o' to enable/disable the Optimization on render events.
// Press 'Space' to restore the cube

// VTK includes
#include "vtkCommand.h"
#include "vtkHandleWidget.h"
#include "vtkInteractorEventRecorder.h"
#include "vtkInteractorStyleTrackballCamera.h"
#include "vtkNew.h"
#include "vtkPickingManager.h"
#include "vtkProperty.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkRendererCollection.h"
#include "vtkSeedRepresentation.h"
#include "vtkSeedWidget.h"
#include "vtkSmartPointer.h"
#include "vtkSphereHandleRepresentation.h"
#include "vtkTesting.h"
#include "vtkTimerLog.h"
#include "vtksys/FStream.hxx"

// STL includes
#include <fstream>
#include <iostream>
#include <list>

const char eventLogTestPickingManagerSeedWidget[] = "# StreamVersion 1 \n"
                                                    "EnterEvent 570 160 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 570 160 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 366 164 0 0 0 0 0 i\n"
                                                    "LeftButtonPressEvent 366 164 0 0 0 0 0 i\n"
                                                    "StartInteractionEvent 366 164 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 165 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 327 185 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 321 187 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 319 189 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 318 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 316 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 314 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 313 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 312 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 311 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 310 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 309 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 308 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 307 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 306 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 305 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 303 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 302 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 301 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 300 189 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 299 189 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 298 189 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 296 188 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 295 188 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 294 188 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 293 188 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 291 188 0 0 0 0 0 i\n"
                                                    "LeftButtonReleaseEvent 291 188 0 0 0 0 0 i\n"
                                                    "EndInteractionEvent 291 188 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 308 205 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 395 443 0 0 0 0 0 i\n"
                                                    "LeftButtonPressEvent 395 443 0 0 0 0 0 i\n"
                                                    "StartInteractionEvent 395 443 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 395 442 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 393 435 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 392 433 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 392 432 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 390 430 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 390 429 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 389 427 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 389 426 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 388 426 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 387 425 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 387 424 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 386 423 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 385 421 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 384 420 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 384 419 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 384 418 0 0 0 0 0 i\n"
                                                    "LeftButtonReleaseEvent 384 418 0 0 0 0 0 i\n"
                                                    "EndInteractionEvent 384 418 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 380 400 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 297 251 0 0 0 0 0 i\n"
                                                    "LeftButtonPressEvent 297 251 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 297 252 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 298 253 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 301 259 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 301 263 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 302 265 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 305 278 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 307 285 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 311 301 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 314 311 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 316 320 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 321 336 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 327 353 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 330 365 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 371 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 376 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 335 381 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 335 382 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 336 384 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 337 386 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 337 389 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 337 391 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 338 395 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 338 397 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 339 399 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 339 401 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 339 402 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 338 401 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 336 401 0 0 0 0 0 i\n"
                                                    "LeftButtonReleaseEvent 336 401 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 333 395 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 317 302 0 0 0 0 0 i\n"
                                                    "LeftButtonPressEvent 317 302 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 316 302 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 314 302 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 310 303 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 289 308 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 271 316 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 243 324 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 221 334 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 211 341 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 205 345 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 201 348 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 196 352 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 192 356 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 189 357 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 189 358 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 188 359 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 188 360 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 188 361 0 0 0 0 0 i\n"
                                                    "LeftButtonReleaseEvent 188 361 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 188 360 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 256 294 0 0 0 0 0 i\n"
                                                    "LeftButtonPressEvent 256 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 254 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 252 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 250 293 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 246 293 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 244 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 228 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 218 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 185 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 179 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 160 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 155 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 152 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 146 292 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 142 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 140 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 139 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 138 294 0 0 0 0 0 i\n"
                                                    "LeftButtonReleaseEvent 138 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 139 294 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 190 0 0 0 0 0 i\n"
                                                    "MiddleButtonPressEvent 332 190 0 0 0 0 0 i\n"
                                                    "StartInteractionEvent 332 190 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 191 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 213 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 214 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 215 0 0 0 0 0 i\n"
                                                    "MiddleButtonReleaseEvent 332 215 0 0 0 0 0 i\n"
                                                    "EndInteractionEvent 332 215 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 348 216 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 371 235 0 0 0 0 0 i\n"
                                                    "RightButtonPressEvent 372 236 0 0 0 0 0 i\n"
                                                    "StartInteractionEvent 372 236 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 371 234 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 368 226 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 367 225 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 367 225 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 366 224 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 366 223 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 222 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 221 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 220 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 219 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 218 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 365 217 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 217 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 216 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 215 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 214 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 213 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 212 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 211 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 210 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 364 209 0 0 0 0 0 i\n"
                                                    "RightButtonReleaseEvent 364 209 0 0 0 0 0 i\n"
                                                    "EndInteractionEvent 364 209 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 363 209 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 345 188 0 0 0 0 0 i\n"
                                                    "LeftButtonPressEvent 345 188 0 0 0 0 0 i\n"
                                                    "StartInteractionEvent 345 188 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 344 187 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 338 186 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 337 185 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 335 184 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 334 183 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 332 182 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 331 182 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 329 181 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 327 180 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 326 179 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 325 179 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 324 180 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 324 179 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 323 179 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 323 178 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 322 178 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 321 177 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 319 177 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 319 176 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 317 175 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 316 174 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 315 172 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 314 171 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 312 170 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 311 168 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 310 166 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 309 164 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 309 163 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 307 161 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 306 160 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 305 158 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 305 157 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 304 155 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 303 154 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 302 152 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 301 150 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 300 149 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 299 148 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 298 147 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 296 145 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 295 144 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 293 142 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 291 140 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 290 139 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 288 138 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 286 136 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 286 135 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 285 135 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 284 134 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 283 134 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 283 133 0 0 0 0 0 i\n"
                                                    "LeftButtonReleaseEvent 283 133 0 0 0 0 0 i\n"
                                                    "EndInteractionEvent 283 133 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 284 134 0 0 0 0 0 i\n"
                                                    "MouseMoveEvent 353 212 0 0 0 0 0 i\n"
                                                    "KeyPressEvent 353 212 0 0 32 1 space i\n"
                                                    "CharEvent 353 212 0 0 32 1 space i\n"
                                                    "KeyReleaseEvent 420 372 0 0 32 1 space i\n"
                                                    "MouseMoveEvent 284 134 0 0 0 0 0 i\n";

//------------------------------------------------------------------------------
// Press 'Ctrl' to switch the activation of the Picking Manager.
// Press 'o' to switch the activation of the optimization based on the render
// events.
class vtkPickingManagerCallback : public vtkCommand
{
public:
  static vtkPickingManagerCallback* New() { return new vtkPickingManagerCallback; }

  void Execute(vtkObject* caller, unsigned long, void*) override
  {
    vtkRenderWindowInteractor* iren = static_cast<vtkRenderWindowInteractor*>(caller);
    char* cKeySym = iren->GetKeySym();
    std::string keySym = cKeySym != nullptr ? cKeySym : "";

    // Enable/Disable the PickingManager
    if ((keySym == "Control_L" || keySym == "Control_R") && iren->GetPickingManager())
    {
      if (!iren->GetPickingManager()->GetEnabled())
      {
        std::cout << "PickingManager ON !" << std::endl;
        iren->GetPickingManager()->EnabledOn();
      }
      else
      {
        std::cout << "PickingManager OFF !" << std::endl;
        iren->GetPickingManager()->EnabledOff();
      }
    }
    // Enable/Disable the Optimization on render events.
    else if (keySym == "o" && iren->GetPickingManager())
    {
      if (!iren->GetPickingManager()->GetOptimizeOnInteractorEvents())
      {
        std::cout << "Optimization on Interactor events ON !" << std::endl;
        iren->GetPickingManager()->SetOptimizeOnInteractorEvents(true);
      }
      else
      {
        std::cout << "Optimization on Interactor events OFF !" << std::endl;
        iren->GetPickingManager()->SetOptimizeOnInteractorEvents(false);
      }
    }
  }

  vtkPickingManagerCallback() = default;
};

//------------------------------------------------------------------------------
// Press 'Space' to reorganize the cube of seeds
class vtkPMSCubeCallback : public vtkCommand
{
public:
  static vtkPMSCubeCallback* New() { return new vtkPMSCubeCallback; }

  void Execute(vtkObject* caller, unsigned long, void*) override
  {
    vtkRenderWindowInteractor* iren = static_cast<vtkRenderWindowInteractor*>(caller);

    // Reorganize the cube
    if (!strcmp(iren->GetKeySym(), "space"))
    {
      const int baseCube = static_cast<int>(pow(this->Seeds.size(), 1. / 3.) / 2 + 0.5);
      std::list<vtkSmartPointer<vtkHandleWidget>>::iterator it = this->Seeds.begin();

      for (int i = -baseCube; i < baseCube; ++i)
      {
        for (int j = -baseCube; j < baseCube; ++j)
        {
          for (int k = -baseCube; k < baseCube; ++k)
          {
            vtkSphereHandleRepresentation* newHandleRep =
              vtkSphereHandleRepresentation::SafeDownCast((*it)->GetRepresentation());

            double pos[3] = { static_cast<double>(i), static_cast<double>(j),
              static_cast<double>(k) };
            newHandleRep->SetWorldPosition(pos);

            ++it;
          }
        }
      }
    }
  }

  std::list<vtkSmartPointer<vtkHandleWidget>> Seeds;
};

//------------------------------------------------------------------------------
// Write timerlog in file
// Each time a render event occurs, the corresponding elapsed time is written.
class vtkPMSRecordPerfCallback : public vtkCommand
{
public:
  static vtkPMSRecordPerfCallback* New() { return new vtkPMSRecordPerfCallback; }

  vtkPMSRecordPerfCallback()
  {
    this->performanceReport.open("pickingManagerPerfs.txt");
    this->logTime = vtkTimerLog::New();
  }

  ~vtkPMSRecordPerfCallback() override
  {
    if (this->performanceReport.is_open())
    {
      this->performanceReport << "\n";
      this->performanceReport.close();
    }

    this->logTime->Delete();
  }

  void Execute(vtkObject* vtkNotUsed(caller), unsigned long, void*) override
  {
    // vtkRenderWindowInteractor *iren =
    //   static_cast<vtkRenderWindowInteractor*>(caller);

    // Compute elapsed time
    double elapsedTime;
    this->logTime->StopTimer();
    elapsedTime = this->logTime->GetElapsedTime();

    if (this->performanceReport.is_open())
    {
      // FPS Measurement
      /*
      this->performanceReport << "; " <<
        iren->GetRenderWindow()->GetRenderers()->
          GetFirstRenderer()->GetLastRenderTimeInSeconds();
      */

      // Write delta time
      this->performanceReport << "; " << elapsedTime;
    }

    // Re-start timer
    this->logTime->StartTimer();
  }

  vtksys::ofstream performanceReport;
  vtkTimerLog* logTime;

private:
  vtkPMSRecordPerfCallback(const vtkPMSRecordPerfCallback&) = delete;
  void operator=(const vtkPMSRecordPerfCallback&) = delete;
};

//------------------------------------------------------------------------------
// Test Picking Manager with a lot of seeds
//------------------------------------------------------------------------------
int TestPickingManagerSeedWidget(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
{
  // Create the RenderWindow, Renderer and both Actors
  //
  vtkNew<vtkRenderer> ren1;
  vtkNew<vtkRenderWindow> renWin;
  if (renWin->IsA("vtkOSOpenGLRenderWindow"))
  {
    // we cannot run in OSMesa.
    // Note: I am not sure why but this is how things were before.
    // This test was excluded from the build when VTK_OPENGL_HAS_OSMESA (old setting)
    // was `ON`.
    return VTK_SKIP_RETURN_CODE;
  }
  renWin->AddRenderer(ren1);

  vtkNew<vtkRenderWindowInteractor> iren;
  vtkNew<vtkInteractorStyleTrackballCamera> irenStyle;
  iren->SetRenderWindow(renWin);
  iren->SetInteractorStyle(irenStyle);

  /*--------------------------------------------------------------------------*/
  // PICKING MANAGER
  /*--------------------------------------------------------------------------*/
  // Callback to switch between the managed and non-managed mode of the
  // Picking Manager
  vtkNew<vtkPickingManagerCallback> callMode;
  iren->AddObserver(vtkCommand::KeyPressEvent, callMode);

  /*--------------------------------------------------------------------------*/
  // SEEDS
  /*--------------------------------------------------------------------------*/
  // Representations
  double pos[3] = { 0, 0, 0 };
  vtkNew<vtkSphereHandleRepresentation> handle;
  // handle->SetHandleSize(15.0);
  handle->GetProperty()->SetRepresentationToWireframe();
  handle->GetProperty()->SetColor(1, 1, 1);

  vtkNew<vtkSeedRepresentation> seedRepresentation;
  seedRepresentation->SetHandleRepresentation(handle);

  // Settings
  vtkNew<vtkSeedWidget> seedWidget;
  seedWidget->SetRepresentation(seedRepresentation);
  seedWidget->SetInteractor(iren);
  seedWidget->EnabledOn();

  // Create a cube full of seeds
  // base correspond to the side of the cube --> (2*base)^3 seeds
  const int baseCube = 2;
  std::list<vtkSmartPointer<vtkHandleWidget>> seeds;
  for (int i = -baseCube; i < baseCube; ++i)
  {
    for (int j = -baseCube; j < baseCube; ++j)
    {
      for (int k = -baseCube; k < baseCube; ++k)
      {
        vtkHandleWidget* newHandle = seedWidget->CreateNewHandle();
        newHandle->SetEnabled(1);
        vtkSphereHandleRepresentation* newHandleRep =
          vtkSphereHandleRepresentation::SafeDownCast(newHandle->GetRepresentation());

        pos[0] = i;
        pos[1] = j;
        pos[2] = k;
        newHandleRep->GetProperty()->SetRepresentationToWireframe();
        newHandleRep->GetProperty()->SetColor(1, 1, 1);
        newHandleRep->SetWorldPosition(pos);

        seeds.emplace_back(newHandle);
      }
    }
  }

  seedWidget->CompleteInteraction();

  // Callback to reorganize the cube when space is pressed
  vtkNew<vtkPMSCubeCallback> reorganizeCallback;
  reorganizeCallback->Seeds = seeds;
  iren->AddObserver(vtkCommand::KeyPressEvent, reorganizeCallback);

  /*--------------------------------------------------------------------------*/
  // Rendering
  /*--------------------------------------------------------------------------*/
  // Add the actors to the renderer, set the background and size
  ren1->SetBackground(0.1, 0.2, 0.4);
  renWin->SetSize(600, 600);

  // Record
  // iren->GetPickingManager()->EnabledOff();
  vtkNew<vtkInteractorEventRecorder> recorder;
  recorder->SetInteractor(iren);
  recorder->ReadFromInputStringOn();
  recorder->SetInputString(eventLogTestPickingManagerSeedWidget);

  // render the image
  iren->Initialize();
  double extent[6] = { -7, 7, -7, 7, -1, 1 };
  ren1->ResetCamera(extent);
  renWin->Render();

  // Performance Measurements
  // Callback to write the rendering running time given different configurations
  // vtkNew<vtkPMSRecordPerfCallback> writePerfsCallback;
  // iren->AddObserver(vtkCommand::RenderEvent, writePerfsCallback);
  // writePerfsCallback->logTime->StartTimer();

  recorder->Play();
  recorder->Off();

  // writePerfsCallback->logTime->StopTimer();

  iren->Start();

  return EXIT_SUCCESS;
}
