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

  Program:   Visualization Toolkit
  Module:    vtkScatterPlotMapper.h

  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.

=========================================================================*/
// .NAME vtkScatterPlotMapper - Display a vtkDataSet with flexibility
// .SECTION Description
// The mappers gives flexibility in the display of the input. By setting
// the arrays to process, every element of the display can be controlled.
// i.e. the coordinates of the points can be controlled by any field array
// or the color of the points can controlled by the x-axes.
// .SECTION Implementation
//
// .SECTION See Also
// vtkGlyph3D, vtkCompositePolyDataMapper2

#ifndef __vtkScatterPlotMapper_h
#define __vtkScatterPlotMapper_h

#include "vtkCompositePolyDataMapper2.h"
#include "vtkWeakPointer.h" // needed for vtkWeakPointer.

class vtkPainterPolyDataMapper;
class vtkPolyData;
class vtkScalarsToColorsPainter;
class vtkScatterPlotPainter;

class VTK_EXPORT vtkScatterPlotMapper : public vtkCompositePolyDataMapper2
{
public:
  static vtkScatterPlotMapper* New();
  vtkTypeMacro(vtkScatterPlotMapper, vtkCompositePolyDataMapper2);
  void PrintSelf(ostream& os, vtkIndent indent);

  //BTX
  enum ArrayIndex
    {
    X_COORDS = 0,
    Y_COORDS,
    Z_COORDS,
    COLOR,
    GLYPH_X_SCALE,
    GLYPH_Y_SCALE,
    GLYPH_Z_SCALE,
    GLYPH_SOURCE,
    GLYPH_X_ORIENTATION,
    GLYPH_Y_ORIENTATION,
    GLYPH_Z_ORIENTATION,
    NUMBER_OF_ARRAYS
    };

  // Description
  // Flags to control how the glyphs are displayed.
  // To use the default glyphs, set the GlyphMode to UseGlyph. 
  // The other flags must have their corresponding array in order to be valid.
  // GLYPH_[XYZ]_SCALE for ScaledGlyph; GLYPH_SOURCE for UseMultiGlyph and 
  // GLYPH_[XYZ]_ORIENTATION for OrientedGlyph.
  enum GlyphDrawingMode
    {
    NoGlyph       = 0,
    UseGlyph      = 1,
    ScaledGlyph   = 2,
    UseMultiGlyph = 4,
    OrientedGlyph = 8,
    };
 
  enum ScalingArrayModes
  {
    // Where Sx,y,z are the scaling coefs,
    // X,Y and Z are the GLYPH_[X,Y,Z]_SCALE arrays,
    // Xc,Yc and Zc are the active component of the respective X,Y and Z arrays
    // Sx = X[Xc], Sy = Y[Yc], Sz = Z[Zc]
    Xc_Yc_Zc    = 0, // Use one component of each GLYPH_[X,Y,Z]_SCALE arrays (default)
    // Sx = X[Xc+0], Sy = X[Xc+1], Sz = X[Xc+2]
    Xc0_Xc1_Xc2 = 1, // Use three components of the GLYPH_X_SCALE array
    // Sx = X[Xc], Sy = X[Xc], Sz = X[Xc]
    Xc_Xc_Xc    = 2 // Duplicate the component of the GLYPH_X_SCALE array
  };

  enum ScaleModes
  {
    SCALE_BY_MAGNITUDE  = 0, // XScale = YScale = ZScale = Norm(Sx,Sy,Sz,...)
    SCALE_BY_COMPONENTS = 1, // XScale = Sx, YScale = Sy, ZScale = Sz
  };

  enum OrientationModes
  {
    DIRECTION = 0,
    ROTATION  = 1,
  };
  //ETX
  static vtkInformationIntegerKey *FIELD_ACTIVE_COMPONENT();

  // Description:
  // Set the name of the point array to use as a mask for generating the glyphs.
  // This is a convenience method. The same effect can be achieved by using
  // SetInputArrayToProcess(idx, 0, connection,
  //    vtkDataObject::FIELD_ASSOCIATION_POINTS, arrayName)
  //void SetMaskArray();
  void SetArrayByFieldName(ArrayIndex idx, const char* arrayName, 
                           int fieldAssociation,
                           int component = 0, int connection = 0 );
  void SetArrayByFieldIndex(ArrayIndex idx, int fiedIndex, 
                            int fieldAssociation,
                            int component = 0, int connection = 0 );
  // Description:
  // Set the point attribute to use for generating the glyphs.
  // \c idx is one of the following:
  // \li vtkScatterPlotMapper::X_COORDS
  // \li vtkScatterPlotMapper::Y_COORDS
  // \li vtkScatterPlotMapper::Z_COORDS
  // \li vtkScatterPlotMapper::COLOR
  // \li vtkScatterPlotMapper::GLYPH_SCALING
  // \li vtkScatterPlotMapper::GLYPH_ORIENTATION
  // \li vtkScatterPlotMapper::GLYPH_SHAPE
  // \c fieldAttributeType is one of the following:
  // \li vtkDataSetAttributes::SCALARS
  // \li vtkDataSetAttributes::VECTORS
  // \li vtkDataSetAttributes::NORMALS
  // \li vtkDataSetAttributes::TCOORDS
  // \li vtkDataSetAttributes::TENSORS
  // 
  // This is a convenience method. This internally  same effect can be achieved by using
  // SetInputArrayToProcess(idx, 0, connection,
  //    vtkDataObject::FIELD_ASSOCIATION_POINTS, fieldAttributeType)
  void SetArrayByFieldType(ArrayIndex idx, int fieldAttributeType, 
                           int fieldAssociation,
                         int component=0, int connection=0);
  
  void SetArrayByPointCoord(ArrayIndex idx, 
                            int component=0, int connection=0);
  void SetArrayByName(ArrayIndex idx, const char* arrayName);
  void SetXCoordsArray(const char* arrayName)
  {this->SetArrayByName(X_COORDS,arrayName);}
  void SetYCoordsArray(const char* arrayName)
  {this->SetArrayByName(Y_COORDS,arrayName);}
  void SetZCoordsArray(const char* arrayName)
  {this->SetArrayByName(Z_COORDS,arrayName);}
  void SetColorArray(const char* arrayName)
  {this->SetArrayByName(COLOR,arrayName);}
  void SetGlyphXScalingArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_X_SCALE,arrayName);}
  void SetGlyphYScalingArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_Y_SCALE,arrayName);}
  void SetGlyphZScalingArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_Z_SCALE,arrayName);}
  void SetGlyphSourceArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_SOURCE,arrayName);}
  void SetGlyphXOrientationArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_X_ORIENTATION,arrayName);}
  void SetGlyphYOrientationArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_Y_ORIENTATION,arrayName);}
  void SetGlyphZOrientationArray(const char* arrayName)
  {this->SetArrayByName(GLYPH_Z_ORIENTATION,arrayName);}

  vtkDataArray* GetArray(ArrayIndex idx);
  vtkDataArray* GetArray(ArrayIndex idx, vtkDataSet* input);

/*
  void SetThreeDMode(bool);
  void SetColorize(bool);
  void SetGlyphMode(int);
  void SetScalingArrayMode(int);
  void SetScaleMode(int);
  void SetScaleFactor(double);
  void SetOrientationMode(int);
  void SetNestedDisplayLists(bool);
*/
  // Description:
  // Enable or not the third (z) coordinate for 3D rendering (instead of 2D).
  // Note:
  // To work, the Z_Coords index array must be given.
  vtkSetMacro(ThreeDMode,bool);
  vtkGetMacro(ThreeDMode,bool);
  vtkBooleanMacro(ThreeDMode,bool);

  // Description:
  // Enable or not the color painting at each point.
  // Note:
  // To work, the Color index array must be given.
  vtkSetMacro(Colorize,bool);
  vtkGetMacro(Colorize,bool);
  vtkBooleanMacro(Colorize,bool);

  // Description:
  // Enable or not the Glyph representation at each point.
  // Note:
  // To work, at least 1 Glyph polydata input must be set and the Glyph index
  // array must be given.
  vtkSetMacro(GlyphMode,int);
  vtkGetMacro(GlyphMode,int);
  //vtkBooleanMacro(GlyphMode,int);

  // Description:
  // If the GlyphMode has ScaledGlyph turned on, ScalingArrayMode describes 
  // how to data in the different GLYPH_[X,Y,Z]_SCALE arrays
  vtkSetMacro(ScalingArrayMode,int);
  vtkGetMacro(ScalingArrayMode,int);

  // Description:
  // If the GlyphMode has ScaledGlyph turned on, decide how to scale the 
  // glyph. By Magnitude or components.
  vtkSetMacro(ScaleMode,int);
  vtkGetMacro(ScaleMode,int);

  // Description:
  // Specify scale factor to scale object by. This is used only when Scaling is
  // On.
  vtkSetMacro(ScaleFactor,double);
  vtkGetMacro(ScaleFactor,double);

  vtkSetMacro(OrientationMode, int);
  vtkGetMacro(OrientationMode, int);


  // Description:
  // If immediate mode is off, if Glyphs are in use and if NestedDisplayLists 
  // is false, only the mappers of each glyph use display lists. If true,
  // in addition, matrices transforms and color per glyph are also
  // in a parent display list.
  // Not relevant if immediate mode is on.
  // For debugging/profiling purpose. Initial value is true.
  vtkSetMacro(NestedDisplayLists, bool);
  vtkGetMacro(NestedDisplayLists, bool);
  vtkBooleanMacro(NestedDisplayLists, bool);

  // Description:
  // When the glyphs are in 2D, it might be useful to force them to 
  // be shown parallel to the camera.
  vtkSetMacro(ParallelToCamera, bool);
  vtkGetMacro(ParallelToCamera, bool);
  vtkBooleanMacro(ParallelToCamera, bool);

  // Description:
  // Specify a source object at a specified table location. New style.
  // Source connection is stored in port 1. This method is equivalent
  // to SetInputConnection(1, id, outputPort).
  void SetGlyphSourceConnection(int id, vtkAlgorithmOutput* algOutput);
  void SetGlyphSourceConnection(vtkAlgorithmOutput* algOutput)
    {
      this->SetGlyphSourceConnection(0, algOutput);
    }
  // Description:
  // Specify a source object at a specified table location. New style.
  // Source connection is stored in port 1. This method is equivalent
  // to SetInputConnection(1, id, outputPort).
  void AddGlyphSourceConnection(vtkAlgorithmOutput* algOutput);  
  vtkPolyData* GetGlyphSource(int id = 0);

  // Description:
  // Reimplemented to allow "real" pre rendering by vtkScatterPlotPainter
  // Indeed the vtkPainter::PrepareForRendering is not exactly 
  // a prepare for rendering (the rendering already started).
  virtual void Render(vtkRenderer* renderer, vtkActor* actor);

  //BTX
 protected:
  vtkScatterPlotMapper();
  virtual ~vtkScatterPlotMapper();
  
  // Description:
  // Take part in garbage collection.
  virtual void ReportReferences(vtkGarbageCollector *collector);
  
  virtual int FillInputPortInformation(int port, vtkInformation *info);
  /*
  virtual int FillOutputPortInformation(int port, vtkInformation *info);
  
  virtual int ProcessRequest(vtkInformation* request,
                             vtkInformationVector** inputVector,
                             vtkInformationVector* outputVector);
  virtual int RequestData(vtkInformation* request,
                           vtkInformationVector** inputVector,
                           vtkInformationVector* outputVector);
  virtual int RequestUpdateExtent(vtkInformation* request,
                           vtkInformationVector** inputVector,
                           vtkInformationVector* outputVector);
  virtual int RequestInformation(vtkInformation* request,
                           vtkInformationVector** inputVector,
                           vtkInformationVector* outputVector);
  */
  // Description:
  // Send mapper ivars to sub-mapper.
  // \pre mapper_exists: mapper!=0
  void CopyInformationToSubMapper(vtkPainterPolyDataMapper *mapper);

  virtual void PrepareForRendering(vtkRenderer* renderer, vtkActor* actor);
  void InitGlyphMappers(vtkRenderer* renderer, vtkActor* actor, bool createDisplayList = true);
  void GenerateDefaultGlyphs();
  virtual void ComputeBounds();
  virtual void UpdatePainterInformation();

  vtkScatterPlotPainter* GetScatterPlotPainter();
  
  bool ThreeDMode;
  bool Colorize;
  int GlyphMode;

  double ScaleFactor; // Scale factor to use to scale geometry
  int ScaleMode; // Scale by scalar value or vector magnitude
  int ScalingArrayMode;
  int OrientationMode;
  bool NestedDisplayLists; // boolean
  bool ParallelToCamera;
 private:
  vtkScatterPlotMapper(const vtkScatterPlotMapper&); // Not implemented.
  void operator=(const vtkScatterPlotMapper&); // Not implemented.
  //ETX
};

#endif
