// Created by: NW,JPB,CAL
// Copyright (c) 1991-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _Graphic3d_AspectMarker3d_HeaderFile
#define _Graphic3d_AspectMarker3d_HeaderFile

#include <Aspect_AspectMarkerDefinitionError.hxx>
#include <Aspect_TypeOfMarker.hxx>
#include <Graphic3d_MarkerImage.hxx>
#include <Graphic3d_ShaderProgram.hxx>
#include <Image_PixMap.hxx>
#include <Standard.hxx>
#include <Standard_Integer.hxx>
#include <Standard_Real.hxx>
#include <Standard_Type.hxx>
#include <TColStd_HArray1OfByte.hxx>
#include <Quantity_ColorRGBA.hxx>

//! Creates and updates an attribute group for marker type primitives.
//! This group contains the type of marker, its color, and its scale factor.
class Graphic3d_AspectMarker3d : public Standard_Transient
{
  DEFINE_STANDARD_RTTIEXT(Graphic3d_AspectMarker3d, Standard_Transient)
public:

  //! Creates a context table for marker primitives
  //! defined with the following default values:
  //!
  //! Marker type : TOM_X
  //! Color       : YELLOW
  //! Scale factor: 1.0
  Standard_EXPORT Graphic3d_AspectMarker3d();
  
  Standard_EXPORT Graphic3d_AspectMarker3d(const Aspect_TypeOfMarker theType, const Quantity_Color& theColor, const Standard_Real theScale);
  
  //! Creates a context table for marker primitives
  //! defined with the specified values.
  Standard_EXPORT Graphic3d_AspectMarker3d(const Quantity_Color& theColor, const Standard_Integer theWidth, const Standard_Integer theHeight, const Handle(TColStd_HArray1OfByte)& theTextureBitmap);
  
  //! Creates a context table for marker primitives
  //! defined with the specified values.
  Standard_EXPORT Graphic3d_AspectMarker3d(const Handle(Image_PixMap)& theTextureImage);

  //! Return color.
  const Quantity_ColorRGBA& ColorRGBA() const { return myColor; }

  //! Return the color.
  const Quantity_Color& Color() const { return myColor.GetRGB(); }

  //! Modifies the color.
  void SetColor (const Quantity_Color& theColor) { myColor.SetRGB (theColor); }

  //! Return scale factor.
  Standard_ShortReal Scale() const { return myScale; }

  //! Modifies the scale factor.
  //! Marker type Aspect_TOM_POINT is not affected by the marker size scale factor.
  //! It is always the smallest displayable dot.
  //! Warning: Raises AspectMarkerDefinitionError if the scale is a negative value.
  void SetScale (const Standard_ShortReal theScale)
  {
    if (theScale <= 0.0f)
    {
      throw Aspect_AspectMarkerDefinitionError("Bad value for MarkerScale");
    }
    myScale = theScale;
  }

  //! Assign scale factor.
  void SetScale (const Standard_Real theScale) { SetScale ((float )theScale); }

  //! Return marker type.
  Aspect_TypeOfMarker Type() const { return myType; }

  //! Modifies the type of marker.
  void SetType (const Aspect_TypeOfMarker theType) { myType = theType; }

  //! Returns marker's texture size.
  Standard_EXPORT void GetTextureSize (Standard_Integer& theWidth, Standard_Integer& theHeight) const;
  
  //! Returns marker's image texture.
  //! Could be null handle if marker aspect has been initialized as default type of marker.
  const Handle(Graphic3d_MarkerImage)& GetMarkerImage() const { return myMarkerImage; }
  
  //! Set marker's image texture.
  void SetMarkerImage (const Handle(Graphic3d_MarkerImage)& theImage) { myMarkerImage = theImage; }

  Standard_EXPORT void SetBitMap (const Standard_Integer theWidth, const Standard_Integer theHeight, const Handle(TColStd_HArray1OfByte)& theTexture);

  //! Return the program.
  const Handle(Graphic3d_ShaderProgram)& ShaderProgram() const { return myProgram; }

  //! Sets up OpenGL/GLSL shader program.
  void SetShaderProgram (const Handle(Graphic3d_ShaderProgram)& theProgram) { myProgram = theProgram; }

public:

  //! Returns the current values of the group.
  Standard_DEPRECATED("Deprecated method Values() should be replaced by individual property getters")
  void Values (Quantity_Color&      theColor,
               Aspect_TypeOfMarker& theType,
               Standard_Real&       theScale) const
  {
    theColor = myColor.GetRGB();
    theType  = myType;
    theScale = myScale;
  }

protected:

  Handle(Graphic3d_ShaderProgram) myProgram;
  Handle(Graphic3d_MarkerImage)   myMarkerImage;
  Quantity_ColorRGBA  myColor;
  Aspect_TypeOfMarker myType;
  Standard_ShortReal  myScale;

};

DEFINE_STANDARD_HANDLE(Graphic3d_AspectMarker3d, Standard_Transient)

#endif // _Graphic3d_AspectMarker3d_HeaderFile