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

  Program:   Visualization Toolkit
  Module:    TestSphereHandleWidget.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.

=========================================================================*/
// Tests the vtkHandleWidget when it uses a vtkSphereHandleRepresentation.
// See also TestPolygonalRepresentationHandleWidget.cxx to plug in any
// generic polydata as a handle.
//
#include "vtkSmartPointer.h"

#include "vtkActor.h"
#include "vtkCamera.h"
#include "vtkCellArray.h"
#include "vtkDEMReader.h"
#include "vtkHandleWidget.h"
#include "vtkImageData.h"
#include "vtkImageDataGeometryFilter.h"
#include "vtkImageResample.h"
#include "vtkLODActor.h"
#include "vtkLookupTable.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkPolyDataCollection.h"
#include "vtkPolyDataMapper.h"
#include "vtkPolyDataNormals.h"
#include "vtkProperty.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSphereHandleRepresentation.h"
#include "vtkTestUtilities.h"
#include "vtkTesting.h"
#include "vtkTriangleFilter.h"
#include "vtkWarpScalar.h"

#include "vtkDataSetWriter.h"
#include "vtkMultiThreader.h"

const char TestSphereHandleWidgetEventLog[] =
"# StreamVersion 1\n"
"MouseMoveEvent 181 152 0 0 0 0 0\n"
"MouseMoveEvent 180 151 0 0 0 0 0\n"
"MouseMoveEvent 179 150 0 0 0 0 0\n"
"MouseMoveEvent 178 149 0 0 0 0 0\n"
"MouseMoveEvent 177 147 0 0 0 0 0\n"
"MouseMoveEvent 176 146 0 0 0 0 0\n"
"MouseMoveEvent 176 145 0 0 0 0 0\n"
"MouseMoveEvent 176 144 0 0 0 0 0\n"
"MouseMoveEvent 175 144 0 0 0 0 0\n"
"MouseMoveEvent 175 143 0 0 0 0 0\n"
"MouseMoveEvent 175 142 0 0 0 0 0\n"
"MouseMoveEvent 175 141 0 0 0 0 0\n"
"MouseMoveEvent 174 141 0 0 0 0 0\n"
"MouseMoveEvent 173 142 0 0 0 0 0\n"
"MouseMoveEvent 173 143 0 0 0 0 0\n"
"MouseMoveEvent 172 143 0 0 0 0 0\n"
"MouseMoveEvent 172 144 0 0 0 0 0\n"
"MouseMoveEvent 172 145 0 0 0 0 0\n"
"MouseMoveEvent 172 146 0 0 0 0 0\n"
"MouseMoveEvent 171 146 0 0 0 0 0\n"
"MouseMoveEvent 170 146 0 0 0 0 0\n"
"MouseMoveEvent 169 146 0 0 0 0 0\n"
"MouseMoveEvent 168 146 0 0 0 0 0\n"
"MouseMoveEvent 167 146 0 0 0 0 0\n"
"MouseMoveEvent 166 146 0 0 0 0 0\n"
"LeftButtonPressEvent 166 146 0 0 0 0 0\n"
"RenderEvent 166 146 0 0 0 0 0\n"
"RenderEvent 166 146 0 0 0 0 0\n"
"MouseMoveEvent 164 146 0 0 0 0 0\n"
"RenderEvent 164 146 0 0 0 0 0\n"
"MouseMoveEvent 162 146 0 0 0 0 0\n"
"RenderEvent 162 146 0 0 0 0 0\n"
"MouseMoveEvent 160 146 0 0 0 0 0\n"
"RenderEvent 160 146 0 0 0 0 0\n"
"MouseMoveEvent 150 143 0 0 0 0 0\n"
"RenderEvent 150 143 0 0 0 0 0\n"
"MouseMoveEvent 142 140 0 0 0 0 0\n"
"RenderEvent 142 140 0 0 0 0 0\n"
"MouseMoveEvent 133 138 0 0 0 0 0\n"
"RenderEvent 133 138 0 0 0 0 0\n"
"MouseMoveEvent 111 132 0 0 0 0 0\n"
"RenderEvent 111 132 0 0 0 0 0\n"
"MouseMoveEvent 99 126 0 0 0 0 0\n"
"RenderEvent 99 126 0 0 0 0 0\n"
"MouseMoveEvent 95 125 0 0 0 0 0\n"
"RenderEvent 95 125 0 0 0 0 0\n"
"MouseMoveEvent 90 122 0 0 0 0 0\n"
"RenderEvent 90 122 0 0 0 0 0\n"
"MouseMoveEvent 87 121 0 0 0 0 0\n"
"RenderEvent 87 121 0 0 0 0 0\n"
"MouseMoveEvent 85 121 0 0 0 0 0\n"
"RenderEvent 85 121 0 0 0 0 0\n"
"MouseMoveEvent 79 120 0 0 0 0 0\n"
"RenderEvent 79 120 0 0 0 0 0\n"
"MouseMoveEvent 75 119 0 0 0 0 0\n"
"RenderEvent 75 119 0 0 0 0 0\n"
"MouseMoveEvent 73 118 0 0 0 0 0\n"
"RenderEvent 73 118 0 0 0 0 0\n"
"MouseMoveEvent 70 118 0 0 0 0 0\n"
"RenderEvent 70 118 0 0 0 0 0\n"
"MouseMoveEvent 67 118 0 0 0 0 0\n"
"RenderEvent 67 118 0 0 0 0 0\n"
"MouseMoveEvent 66 118 0 0 0 0 0\n"
"RenderEvent 66 118 0 0 0 0 0\n"
"MouseMoveEvent 63 118 0 0 0 0 0\n"
"RenderEvent 63 118 0 0 0 0 0\n"
"MouseMoveEvent 61 118 0 0 0 0 0\n"
"RenderEvent 61 118 0 0 0 0 0\n"
"MouseMoveEvent 58 118 0 0 0 0 0\n"
"RenderEvent 58 118 0 0 0 0 0\n"
"MouseMoveEvent 52 119 0 0 0 0 0\n"
"RenderEvent 52 119 0 0 0 0 0\n"
"MouseMoveEvent 50 120 0 0 0 0 0\n"
"RenderEvent 50 120 0 0 0 0 0\n"
"MouseMoveEvent 48 120 0 0 0 0 0\n"
"RenderEvent 48 120 0 0 0 0 0\n"
"MouseMoveEvent 47 120 0 0 0 0 0\n"
"RenderEvent 47 120 0 0 0 0 0\n"
"MouseMoveEvent 46 121 0 0 0 0 0\n"
"RenderEvent 46 121 0 0 0 0 0\n"
"MouseMoveEvent 45 121 0 0 0 0 0\n"
"RenderEvent 45 121 0 0 0 0 0\n"
"MouseMoveEvent 44 123 0 0 0 0 0\n"
"RenderEvent 44 123 0 0 0 0 0\n"
"MouseMoveEvent 43 124 0 0 0 0 0\n"
"RenderEvent 43 124 0 0 0 0 0\n"
"MouseMoveEvent 43 128 0 0 0 0 0\n"
"RenderEvent 43 128 0 0 0 0 0\n"
"MouseMoveEvent 43 132 0 0 0 0 0\n"
"RenderEvent 43 132 0 0 0 0 0\n"
"MouseMoveEvent 44 136 0 0 0 0 0\n"
"RenderEvent 44 136 0 0 0 0 0\n"
"MouseMoveEvent 45 140 0 0 0 0 0\n"
"RenderEvent 45 140 0 0 0 0 0\n"
"MouseMoveEvent 50 144 0 0 0 0 0\n"
"RenderEvent 50 144 0 0 0 0 0\n"
"MouseMoveEvent 54 148 0 0 0 0 0\n"
"RenderEvent 54 148 0 0 0 0 0\n"
"MouseMoveEvent 56 150 0 0 0 0 0\n"
"RenderEvent 56 150 0 0 0 0 0\n"
"MouseMoveEvent 62 156 0 0 0 0 0\n"
"RenderEvent 62 156 0 0 0 0 0\n"
"MouseMoveEvent 65 159 0 0 0 0 0\n"
"RenderEvent 65 159 0 0 0 0 0\n"
"MouseMoveEvent 68 160 0 0 0 0 0\n"
"RenderEvent 68 160 0 0 0 0 0\n"
"MouseMoveEvent 71 162 0 0 0 0 0\n"
"RenderEvent 71 162 0 0 0 0 0\n"
"MouseMoveEvent 76 164 0 0 0 0 0\n"
"RenderEvent 76 164 0 0 0 0 0\n"
"MouseMoveEvent 81 169 0 0 0 0 0\n"
"RenderEvent 81 169 0 0 0 0 0\n"
"MouseMoveEvent 84 170 0 0 0 0 0\n"
"RenderEvent 84 170 0 0 0 0 0\n"
"MouseMoveEvent 87 171 0 0 0 0 0\n"
"RenderEvent 87 171 0 0 0 0 0\n"
"MouseMoveEvent 92 174 0 0 0 0 0\n"
"RenderEvent 92 174 0 0 0 0 0\n"
"MouseMoveEvent 93 174 0 0 0 0 0\n"
"RenderEvent 93 174 0 0 0 0 0\n"
"MouseMoveEvent 96 174 0 0 0 0 0\n"
"RenderEvent 96 174 0 0 0 0 0\n"
"MouseMoveEvent 100 175 0 0 0 0 0\n"
"RenderEvent 100 175 0 0 0 0 0\n"
"MouseMoveEvent 104 175 0 0 0 0 0\n"
"RenderEvent 104 175 0 0 0 0 0\n"
"MouseMoveEvent 108 175 0 0 0 0 0\n"
"RenderEvent 108 175 0 0 0 0 0\n"
"MouseMoveEvent 114 175 0 0 0 0 0\n"
"RenderEvent 114 175 0 0 0 0 0\n"
"MouseMoveEvent 118 175 0 0 0 0 0\n"
"RenderEvent 118 175 0 0 0 0 0\n"
"MouseMoveEvent 123 174 0 0 0 0 0\n"
"RenderEvent 123 174 0 0 0 0 0\n"
"MouseMoveEvent 127 173 0 0 0 0 0\n"
"RenderEvent 127 173 0 0 0 0 0\n"
"MouseMoveEvent 133 172 0 0 0 0 0\n"
"RenderEvent 133 172 0 0 0 0 0\n"
"MouseMoveEvent 135 172 0 0 0 0 0\n"
"RenderEvent 135 172 0 0 0 0 0\n"
"MouseMoveEvent 140 172 0 0 0 0 0\n"
"RenderEvent 140 172 0 0 0 0 0\n"
"MouseMoveEvent 144 172 0 0 0 0 0\n"
"RenderEvent 144 172 0 0 0 0 0\n"
"MouseMoveEvent 148 172 0 0 0 0 0\n"
"RenderEvent 148 172 0 0 0 0 0\n"
"MouseMoveEvent 152 171 0 0 0 0 0\n"
"RenderEvent 152 171 0 0 0 0 0\n"
"MouseMoveEvent 156 171 0 0 0 0 0\n"
"RenderEvent 156 171 0 0 0 0 0\n"
"MouseMoveEvent 162 171 0 0 0 0 0\n"
"RenderEvent 162 171 0 0 0 0 0\n"
"MouseMoveEvent 164 171 0 0 0 0 0\n"
"RenderEvent 164 171 0 0 0 0 0\n"
"MouseMoveEvent 168 171 0 0 0 0 0\n"
"RenderEvent 168 171 0 0 0 0 0\n"
"MouseMoveEvent 175 171 0 0 0 0 0\n"
"RenderEvent 175 171 0 0 0 0 0\n"
"MouseMoveEvent 180 170 0 0 0 0 0\n"
"RenderEvent 180 170 0 0 0 0 0\n"
"MouseMoveEvent 184 170 0 0 0 0 0\n"
"RenderEvent 184 170 0 0 0 0 0\n"
"MouseMoveEvent 194 168 0 0 0 0 0\n"
"RenderEvent 194 168 0 0 0 0 0\n"
"MouseMoveEvent 198 168 0 0 0 0 0\n"
"RenderEvent 198 168 0 0 0 0 0\n"
"MouseMoveEvent 201 167 0 0 0 0 0\n"
"RenderEvent 201 167 0 0 0 0 0\n"
"MouseMoveEvent 205 166 0 0 0 0 0\n"
"RenderEvent 205 166 0 0 0 0 0\n"
"MouseMoveEvent 233 158 0 0 0 0 0\n"
"RenderEvent 233 158 0 0 0 0 0\n"
"LeftButtonReleaseEvent 233 158 0 0 0 0 0\n"
"RenderEvent 233 158 0 0 0 0 0\n"
"MouseMoveEvent 234 159 0 0 0 0 0\n"
"MouseMoveEvent 238 163 0 0 0 0 0\n"
"MouseMoveEvent 240 164 0 0 0 0 0\n"
"MouseMoveEvent 248 168 0 0 0 0 0\n"
"MouseMoveEvent 258 168 0 0 0 0 0\n"
"MouseMoveEvent 266 168 0 0 0 0 0\n"
"MouseMoveEvent 272 170 0 0 0 0 0\n"
"MouseMoveEvent 271 170 0 0 0 0 0\n";

//#define RECORD

int TestSphereHandleWidget(int argc, char*argv[])
{
  if (argc < 2)
  {
    std::cerr
      << "Sphere widget with a sphere handle representation."
      << std::endl;
    return EXIT_FAILURE;
  }

  // Read height field.
  char* fname =
    vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/SainteHelens.dem");

  vtkMultiThreader::SetGlobalMaximumNumberOfThreads(1);

  // Read height field.
  //
  vtkSmartPointer<vtkDEMReader> demReader =
    vtkSmartPointer<vtkDEMReader>::New();
  demReader->SetFileName(fname);
  delete [] fname;

  vtkSmartPointer<vtkImageResample>  resample =
    vtkSmartPointer<vtkImageResample>::New();
  resample->SetInputConnection(demReader->GetOutputPort());
  resample->SetDimensionality(2);
  resample->SetAxisMagnificationFactor(0,1);
  resample->SetAxisMagnificationFactor(1,1);

  // Extract geometry
  vtkSmartPointer<vtkImageDataGeometryFilter> surface =
    vtkSmartPointer<vtkImageDataGeometryFilter>::New();
  surface->SetInputConnection(resample->GetOutputPort());

  // The Dijkistra interpolator will not accept cells that aren't triangles
  vtkSmartPointer<vtkTriangleFilter> triangleFilter =
    vtkSmartPointer<vtkTriangleFilter>::New();
  triangleFilter->SetInputConnection( surface->GetOutputPort() );
  triangleFilter->Update();

  vtkSmartPointer<vtkWarpScalar> warp =
    vtkSmartPointer<vtkWarpScalar>::New();
  warp->SetInputConnection(triangleFilter->GetOutputPort());
  warp->SetScaleFactor(1);
  warp->UseNormalOn();
  warp->SetNormal(0, 0, 1);
  warp->Update();

  // cout << warp->GetOutput()->GetNumberOfCells() << endl;

  // vtkSmartPointer<vtkDataSetWriter> writer =
  //   vtkSmartPointer<vtkDataSetWriter>::New();
  // writer->SetInputConnection(resample->GetOutputPort());
  // writer->SetFileName("foo.vtk");
  // writer->Write();

  // Define a LUT mapping for the height field

  double lo = demReader->GetOutput()->GetScalarRange()[0];
  double hi = demReader->GetOutput()->GetScalarRange()[1];

  vtkSmartPointer<vtkLookupTable> lut =
    vtkSmartPointer<vtkLookupTable>::New();
  lut->SetHueRange(0.6, 0);
  lut->SetSaturationRange(1.0, 0);
  lut->SetValueRange(0.5, 1.0);

  vtkSmartPointer<vtkPolyDataNormals> normals =
    vtkSmartPointer<vtkPolyDataNormals>::New();

  vtkSmartPointer<vtkPolyDataMapper> demMapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  demMapper->SetInputConnection(warp->GetOutputPort());
  demMapper->SetScalarRange(lo, hi);
  demMapper->SetLookupTable(lut);

  vtkSmartPointer<vtkActor> demActor =
    vtkSmartPointer<vtkActor>::New();
  demActor->SetMapper(demMapper);

  // Create the RenderWindow, Renderer and the DEM + path actors.

  vtkSmartPointer<vtkRenderer> ren1 =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renWin =
    vtkSmartPointer<vtkRenderWindow>::New();
  renWin->AddRenderer(ren1);
  vtkSmartPointer<vtkRenderWindowInteractor> iren =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  iren->SetRenderWindow(renWin);

  // Add the actors to the renderer, set the background and size

  ren1->AddActor(demActor);

  ren1->GetActiveCamera()->SetViewUp(0, 0, 1);
  ren1->GetActiveCamera()->SetPosition(-99900, -21354, 131801);
  ren1->GetActiveCamera()->SetFocalPoint(41461, 41461, 2815);
  ren1->ResetCamera();
  ren1->ResetCameraClippingRange();

  // Here comes the surface constrained handle widget stuff.....

  vtkSmartPointer<vtkHandleWidget> widget =
    vtkSmartPointer<vtkHandleWidget>::New();
  widget->SetInteractor(iren);
  vtkSmartPointer<vtkSphereHandleRepresentation> rep =
    vtkSmartPointer<vtkSphereHandleRepresentation>::New();
  widget->SetRepresentation( rep );

  // Let the surface constrained point-placer be the sole constraint dictating
  // the placement of handles. Lets not over-constrain it allowing axis
  // constrained interactions.
  widget->EnableAxisConstraintOff();

  // Set some defaults on the handle widget
  double d[3] = {562532, 5.11396e+06, 2618.62};
  rep->SetWorldPosition( d );
  rep->GetProperty()->SetColor( 1.0, 0.0, 0.0 );
  rep->GetProperty()->SetLineWidth(1.0);
  rep->GetSelectedProperty()->SetColor( 0.2, 0.0, 1.0 );

  renWin->Render();

  iren->Initialize();
  widget->EnabledOn();
  renWin->Render();
  ren1->ResetCamera();
  ren1->ResetCameraClippingRange();

  return vtkTesting::InteractorEventLoop(
      argc, argv, iren, TestSphereHandleWidgetEventLog );
}
