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

  Program:   Visualization Toolkit
  Module:    vtkBooleanTexture.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 "vtkBooleanTexture.h"

#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkPointData.h"
#include "vtkUnsignedCharArray.h"

vtkStandardNewMacro(vtkBooleanTexture);

vtkBooleanTexture::vtkBooleanTexture()
{
  this->SetNumberOfInputPorts(0);
  this->Thickness = 0;

  this->XSize = this->YSize = 12;

  this->InIn[0] = this->InIn[1] = 255;
  this->InOut[0] = this->InOut[1] = 255;
  this->OutIn[0] = this->OutIn[1] = 255;
  this->OutOut[0] = this->OutOut[1] = 255;
  this->OnOn[0] = this->OnOn[1] = 255;
  this->OnIn[0] = this->OnIn[1] = 255;
  this->OnOut[0] = this->OnOut[1] = 255;
  this->InOn[0] = this->InOn[1] = 255;
  this->OutOn[0] = this->OutOn[1] = 255;
}

//----------------------------------------------------------------------------
int vtkBooleanTexture::RequestInformation (
  vtkInformation * vtkNotUsed(request),
  vtkInformationVector** vtkNotUsed( inputVector ),
  vtkInformationVector *outputVector)
{
  // get the info objects
  vtkInformation* outInfo = outputVector->GetInformationObject(0);
  
  int wExt[6];
  wExt[0] = 0;
  wExt[1] = this->XSize - 1;
  wExt[2] = 0;
  wExt[3] = this->YSize - 1;
  wExt[4] = 0;
  wExt[5] = 0;
  
  outInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),wExt,6);
  vtkDataObject::SetPointDataActiveScalarInfo(outInfo, VTK_UNSIGNED_CHAR, 2);
  return 1;
}

void vtkBooleanTexture::ExecuteData(vtkDataObject *outp,
                                    vtkInformation* outInfo)
{
  int i, j;
  int midILower, midJLower, midIUpper, midJUpper;
  vtkImageData *output = this->AllocateOutputData(
    outp, outInfo);
  vtkUnsignedCharArray *newScalars = 
    vtkUnsignedCharArray::SafeDownCast(output->GetPointData()->GetScalars());
  
  if (!newScalars || this->XSize*this->YSize < 1 )
    {
    vtkErrorMacro(<<"Bad texture (xsize,ysize) specification!");
    return;
    }

//
// Compute size of various regions
//
  midILower = static_cast<int>((this->XSize - 1) / 2.0
                               - this->Thickness / 2.0);
  midJLower = static_cast<int>((this->YSize - 1) / 2.0
                               - this->Thickness / 2.0);
  midIUpper = static_cast<int>((this->XSize - 1) / 2.0
                               + this->Thickness / 2.0);
  midJUpper = static_cast<int>((this->YSize - 1) / 2.0
                               + this->Thickness / 2.0);
//
// Create texture map
//
  int count = 0;
  for (j = 0; j < this->YSize; j++) 
    {
    for (i = 0; i < this->XSize; i++) 
      {
      if (i < midILower && j < midJLower) 
        {
        newScalars->SetValue(count,this->InIn[0]);
        count++;
        newScalars->SetValue(count,this->InIn[1]);
        }
      else if (i > midIUpper && j < midJLower) 
        {
        newScalars->SetValue(count,this->OutIn[0]);
        count++;
        newScalars->SetValue(count,this->OutIn[1]);
        }
      else if (i < midILower && j > midJUpper)
        {
        newScalars->SetValue(count,this->InOut[0]);
        count++;
        newScalars->SetValue(count,this->InOut[1]);
        }
      else if (i > midIUpper && j > midJUpper)
        {
        newScalars->SetValue(count,this->OutOut[0]);
        count++;
        newScalars->SetValue(count,this->OutOut[1]);
        }
      else if ((i >= midILower && i <= midIUpper) && (j >= midJLower && j <= midJUpper))
        {
        newScalars->SetValue(count,this->OnOn[0]);
        count++;
        newScalars->SetValue(count,this->OnOn[1]);
        }
      else if ((i >= midILower && i <= midIUpper) && j < midJLower)
        {
        newScalars->SetValue(count,this->OnIn[0]);
        count++;
        newScalars->SetValue(count,this->OnIn[1]);
        }
      else if ((i >= midILower && i <= midIUpper) && j > midJUpper)
        {
        newScalars->SetValue(count,this->OnOut[0]);
        count++;
        newScalars->SetValue(count,this->OnOut[1]);
        }
      else if (i < midILower && (j >= midJLower && j <= midJUpper))
        {
        newScalars->SetValue(count,this->InOn[0]);
        count++;
        newScalars->SetValue(count,this->InOn[1]);
        }
      else if (i > midIUpper && (j >= midJLower && j <= midJUpper))
        {
        newScalars->SetValue(count,this->OutOn[0]);
        count++;
        newScalars->SetValue(count,this->OutOn[1]);
        }
      count++;
      }
    }

}

void vtkBooleanTexture::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os,indent);

  os << indent << "X Size: " << this->XSize << "\n";
  os << indent << "Y Size: " << this->YSize << "\n";

  os << indent << "Thickness: " << this->Thickness << "\n";
  os << indent << "In/In: (" << this->InIn[0] << "," << this->InIn[1] << ")\n";
  os << indent << "In/Out: (" << this->InOut[0] << "," << this->InOut[1] << ")\n";
  os << indent << "Out/In: (" << this->OutIn[0] << "," << this->OutIn[1] << ")\n";
  os << indent << "Out/Out: (" << this->OutOut[0] << "," << this->OutOut[1] << ")\n";
  os << indent << "On/On: (" << this->OnOn[0] << "," << this->OnOn[1] << ")\n";
  os << indent << "On/In: (" << this->OnIn[0] << "," << this->OnIn[1] << ")\n";
  os << indent << "On/Out: (" << this->OnOut[0] << "," << this->OnOut[1] << ")\n";
  os << indent << "In/On: (" << this->InOn[0] << "," << this->InOn[1] << ")\n";
  os << indent << "Out/On: (" << this->OutOn[0] << "," << this->OutOn[1] << ")\n";
}

