// include OS specific include file to mix in X code
#include "vtkXOpenGLRenderWindow.h"
#include "vtkXRenderWindowInteractor.h"
#include "vtkSphereSource.h"
#include "vtkConeSource.h"
#include "vtkGlyph3D.h"
#include "vtkPolyDataMapper.h"
#include <Xm/PushB.h>
#include <Xm/Form.h>
void quit_cb(Widget,XtPointer,XtPointer);
main (int argc, char *argv[])
{
  // X window stuff
  XtAppContext app;
  Widget toplevel, form, toplevel2, vtk;
  Widget button;
  int depth;
  Visual *vis;
  Display *display;
  Colormap col;
  
  // VTK stuff
  vtkXOpenGLRenderWindow *renWin;
  vtkRenderer *ren1;
  vtkActor *sphereActor1, *spikeActor1;
  vtkSphereSource *sphere;
  vtkConeSource *cone;
  vtkGlyph3D *glyph;
  vtkPolyDataMapper *sphereMapper, *spikeMapper;
  vtkXRenderWindowInteractor *iren;
  
  renWin = vtkXOpenGLRenderWindow::New();
  ren1 = vtkRenderer::New();
  renWin->AddRenderer(ren1);
  
  sphere = vtkSphereSource::New();
  sphereMapper = vtkPolyDataMapper::New();
  sphereMapper->SetInput(sphere->GetOutput());
  sphereActor1 = vtkActor::New();
  sphereActor1->SetMapper(sphereMapper);
  cone = vtkConeSource::New();
  glyph = vtkGlyph3D::New();
  glyph->SetInput(sphere->GetOutput());
  glyph->SetSource(cone->GetOutput());
  glyph->SetVectorModeToUseNormal();
  glyph->SetScaleModeToScaleByVector();
  glyph->SetScaleFactor(0.25);
  spikeMapper = vtkPolyDataMapper::New();
  spikeMapper->SetInput(glyph->GetOutput());
  spikeActor1 = vtkActor::New();
  spikeActor1->SetMapper(spikeMapper);
  ren1->AddActor(sphereActor1);
  ren1->AddActor(spikeActor1);
  ren1->SetBackground(0.4,0.1,0.2);
  // do the xwindow ui stuff
  XtSetLanguageProc(NULL,NULL,NULL);
  toplevel = XtVaAppInitialize(&app,"Sample",NULL,0,
                               &argc,argv,NULL, NULL);


  // get the display connection and give it to the renderer
  display = XtDisplay(toplevel);
  renWin->SetDisplayId(display);
  depth = renWin->GetDesiredDepth();
  vis = renWin->GetDesiredVisual();
  col = renWin->GetDesiredColormap();
  
  toplevel2 = XtVaCreateWidget("top2",
       topLevelShellWidgetClass,toplevel,
			       XmNdepth, depth,
			       XmNvisual, vis,
			       XmNcolormap, col,
			       NULL);


  form     = XtVaCreateWidget("form",xmFormWidgetClass, toplevel2, NULL);
  vtk      = XtVaCreateManagedWidget("vtk",
     xmPrimitiveWidgetClass, form, 
				     XmNwidth, 300, XmNheight, 300,
				     XmNleftAttachment, XmATTACH_FORM,
				     XmNrightAttachment, XmATTACH_FORM,
				     XmNtopAttachment, XmATTACH_FORM,
				     NULL);
  button    = XtVaCreateManagedWidget("Exit",
      xmPushButtonWidgetClass, form,
				      XmNheight, 40,
				      XmNbottomAttachment, XmATTACH_FORM,
				      XmNtopAttachment, XmATTACH_WIDGET,
				      XmNtopWidget, vtk,
				      XmNleftAttachment, XmATTACH_FORM,
				      XmNrightAttachment, XmATTACH_FORM,
				      NULL);
  XtAddCallback(button,XmNactivateCallback,quit_cb,NULL);
  XtManageChild(form);
  XtRealizeWidget(toplevel2);
  XtMapWidget(toplevel2);
  
  // we typecast to an X specific interactor
  // Since we have decided to make this an X program
  iren = vtkXRenderWindowInteractor::New();
  iren->SetRenderWindow(renWin);
  iren->SetWidget(vtk);
  iren->Initialize(app);
  XtAppMainLoop(app);
}
/* quit when the arrow */
void quit_cb(Widget w,XtPointer client_data, XtPointer call_data)
{
  exit(0);
}