/**
 * @brief Function called to describe the plugin controls and features.
 * @param[in, out]   desc       Effect descriptor
 * @param[in]        context    Application context
 */
void AVReaderPluginFactory::describeInContext(OFX::ImageEffectDescriptor& desc, OFX::EContext context)
{
    // Create the mandated output clip
    OFX::ClipDescriptor* dstClip = desc.defineClip(kOfxImageEffectOutputClipName);
    dstClip->addSupportedComponent(OFX::ePixelComponentRGBA);
    dstClip->addSupportedComponent(OFX::ePixelComponentRGB);
    dstClip->addSupportedComponent(OFX::ePixelComponentAlpha);
    dstClip->setSupportsTiles(kSupportTiles);

    describeReaderParamsInContext(desc, context);

    // Groups
    OFX::GroupParamDescriptor* formatGroup = desc.defineGroupParam(kParamFormatGroup);
    OFX::GroupParamDescriptor* videoGroup = desc.defineGroupParam(kParamVideoGroup);
    OFX::GroupParamDescriptor* metaGroup = desc.defineGroupParam(kParamMetaGroup);

    formatGroup->setLabel("Format");
    videoGroup->setLabel("Video");
    metaGroup->setLabel("Metadata");

    formatGroup->setAsTab();
    videoGroup->setAsTab();
    metaGroup->setAsTab();

    /// FORMAT PARAMETERS
    avtranscoder::FormatContext formatContext(AV_OPT_FLAG_DECODING_PARAM);
    avtranscoder::OptionArray formatOptions = formatContext.getOptions();
    common::addOptionsToGroup(desc, formatGroup, formatOptions, common::kPrefixFormat);

    OFX::GroupParamDescriptor* formatDetailedGroup = desc.defineGroupParam(kParamFormatDetailedGroup);
    formatDetailedGroup->setLabel("Detailed");
    formatDetailedGroup->setAsTab();
    formatDetailedGroup->setParent(formatGroup);

    avtranscoder::OptionArrayMap formatDetailedGroupOptions = avtranscoder::getAvailableOptionsPerOutputFormat();
    common::addOptionsToGroup(desc, formatDetailedGroup, formatDetailedGroupOptions, common::kPrefixFormat);

    /// VIDEO PARAMETERS
    AVCodecContext* videoContext = avcodec_alloc_context3(NULL);
    avtranscoder::OptionArray videoOptions;
    avtranscoder::loadOptions(videoOptions, videoContext, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM);
    common::addOptionsToGroup(desc, videoGroup, videoOptions, common::kPrefixVideo);
    av_free(videoContext);

    OFX::BooleanParamDescriptor* useCustomSAR = desc.defineBooleanParam(kParamUseCustomSAR);
    useCustomSAR->setLabel("Override SAR");
    useCustomSAR->setDefault(false);
    useCustomSAR->setHint("Override the file SAR (Storage Aspect Ratio) with a custom SAR value.");
    useCustomSAR->setParent(videoGroup);

    OFX::DoubleParamDescriptor* customSAR = desc.defineDoubleParam(kParamCustomSAR);
    customSAR->setLabel("Custom SAR");
    customSAR->setDefault(1.0);
    customSAR->setDisplayRange(0., 3.);
    customSAR->setRange(0., 10.);
    customSAR->setHint("Choose a custom value to override the file SAR (Storage Aspect Ratio). Maximum value: 10.");
    customSAR->setParent(videoGroup);

    OFX::IntParamDescriptor* streamIndex = desc.defineIntParam(kParamVideoStreamIndex);
    streamIndex->setLabel(kParamVideoStreamIndexLabel);
    streamIndex->setDefault(0);
    streamIndex->setDisplayRange(0., 16.);
    streamIndex->setRange(0., 100.);
    streamIndex->setHint("Choose a custom value to decode the video stream you want. Maximum value: 100.");
    streamIndex->setParent(videoGroup);

    OFX::GroupParamDescriptor* videoDetailedGroup = desc.defineGroupParam(kParamVideoDetailedGroup);
    videoDetailedGroup->setLabel("Detailed");
    videoDetailedGroup->setAsTab();
    videoDetailedGroup->setParent(videoGroup);

    avtranscoder::OptionArrayMap videoDetailedGroupOptions = avtranscoder::getAvailableOptionsPerVideoCodec();
    common::addOptionsToGroup(desc, videoDetailedGroup, videoDetailedGroupOptions, common::kPrefixVideo);

    /// METADATA PARAMETERS
    AVCodecContext* metaDataContext = avcodec_alloc_context3(NULL);
    avtranscoder::OptionArray metaDataOptions;
    avtranscoder::loadOptions(metaDataOptions, metaDataContext, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_METADATA);
    common::addOptionsToGroup(desc, metaGroup, metaDataOptions, common::kPrefixMetaData);
    av_free(metaDataContext);

    OFX::StringParamDescriptor* metaDataWrapper = desc.defineStringParam(kParamMetaDataWrapper);
    metaDataWrapper->setLabel(kParamMetaDataWrapperLabel);
    metaDataWrapper->setEnabled(false);
    metaDataWrapper->setStringType(OFX::eStringTypeMultiLine);
    metaDataWrapper->setParent(metaGroup);

    OFX::StringParamDescriptor* metaDataVideo = desc.defineStringParam(kParamMetaDataVideo);
    metaDataVideo->setLabel(kParamMetaDataVideoLabel);
    metaDataVideo->setEnabled(false);
    metaDataVideo->setStringType(OFX::eStringTypeMultiLine);
    metaDataVideo->setParent(metaGroup);

    OFX::StringParamDescriptor* metaDataAudio = desc.defineStringParam(kParamMetaDataAudio);
    metaDataAudio->setLabel(kParamMetaDataAudioLabel);
    metaDataAudio->setEnabled(false);
    metaDataAudio->setStringType(OFX::eStringTypeMultiLine);
    metaDataAudio->setParent(metaGroup);

    OFX::StringParamDescriptor* metaDataData = desc.defineStringParam(kParamMetaDataData);
    metaDataData->setLabel(kParamMetaDataDataLabel);
    metaDataData->setEnabled(false);
    metaDataData->setStringType(OFX::eStringTypeMultiLine);
    metaDataData->setParent(metaGroup);

    OFX::StringParamDescriptor* metaDataSubtitle = desc.defineStringParam(kParamMetaDataSubtitle);
    metaDataSubtitle->setLabel(kParamMetaDataSubtitleLabel);
    metaDataSubtitle->setEnabled(false);
    metaDataSubtitle->setStringType(OFX::eStringTypeMultiLine);
    metaDataSubtitle->setParent(metaGroup);

    OFX::StringParamDescriptor* metaDataAttachement = desc.defineStringParam(kParamMetaDataAttachement);
    metaDataAttachement->setLabel(kParamMetaDataAttachementLabel);
    metaDataAttachement->setEnabled(false);
    metaDataAttachement->setStringType(OFX::eStringTypeMultiLine);
    metaDataAttachement->setParent(metaGroup);

    OFX::StringParamDescriptor* metaDataUnknown = desc.defineStringParam(kParamMetaDataUnknown);
    metaDataUnknown->setLabel(kParamMetaDataUnknownLabel);
    metaDataUnknown->setEnabled(false);
    metaDataUnknown->setStringType(OFX::eStringTypeMultiLine);
    metaDataUnknown->setParent(metaGroup);

    /// VERBOSE
    OFX::BooleanParamDescriptor* useVerbose = desc.defineBooleanParam(kParamVerbose);
    useVerbose->setLabel("Set to verbose");
    useVerbose->setDefault(false);
    useVerbose->setHint("Set plugin to verbose to get debug informations.");
}
void LensCalibrationPluginFactory::describeInContext(OFX::ImageEffectDescriptor& desc, OFX::ContextEnum context)
{
  //Input Clip
  OFX::ClipDescriptor *srcClip = desc.defineClip(kOfxImageEffectSimpleSourceClipName);
  srcClip->addSupportedComponent(OFX::ePixelComponentRGBA);
  srcClip->setTemporalClipAccess(false);
  srcClip->setSupportsTiles(false);
  srcClip->setIsMask(false);
  srcClip->setOptional(false);
  
  //Output clip
  OFX::ClipDescriptor *dstClip = desc.defineClip(kOfxImageEffectOutputClipName);
  dstClip->addSupportedComponent(OFX::ePixelComponentRGBA);
  dstClip->setSupportsTiles(false);
  
  //Calibration Group
  {
    OFX::GroupParamDescriptor *groupCalibration = desc.defineGroupParam(kParamGroupCalibration);
    groupCalibration->setLabel("Calibration");
    groupCalibration->setAsTab();

    {
      OFX::Int2DParamDescriptor *param = desc.defineInt2DParam(kParamImageSize);
      param->setLabel("Image Size");
      param->setHint("Input image size used to calibrate the optics. Obviously, all images should have the same size.");
      param->setDefault(0, 0);
      param->setDisplayRange(0, 0, 10000, 10000);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
      param->setEnabled(false); // should not be edited by the user
    }

    {
      OFX::BooleanParamDescriptor *param = desc.defineBooleanParam(kParamInputImageIsGray);
      param->setLabel("Input image is gray");
      param->setHint("Input image is gray");
      param->setParent(*groupCalibration);
    }
    
    {
      OFX::ChoiceParamDescriptor *param = desc.defineChoiceParam(kParamPatternType);
      param->setLabel("Pattern Type");
      param->setHint("Type of pattern to detect");
      param->appendOptions(kStringParamPatternType);
      param->setDefault(eParamPatternTypeChessboard);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }

    {
      OFX::Int2DParamDescriptor *param = desc.defineInt2DParam(kParamPatternSize);
      param->setLabel("Pattern Size");
      param->setHint("Number of inner corners per one of board dimension Width Height");
      param->setDefault(10, 7);
      param->setRange(2, 2, kOfxFlagInfiniteMax, kOfxFlagInfiniteMax);
      param->setDisplayRange(2, 2, 15, 15);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }
    
    {
      OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamSquareSize);
      param->setLabel("Square Size");
      param->setHint("Define the size of the grid's square cells (mm)");
      param->setDisplayRange(0, 100);
      param->setDefault(1);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
      param->setLayoutHint(OFX::eLayoutHintDivider);
    }

    {
      OFX::IntParamDescriptor *param = desc.defineIntParam(kParamNbRadialCoef);
      param->setLabel("Nb Radial Coef");
      param->setHint("Number of radial coefficient.");
      param->setRange(0, 6);
      param->setDisplayRange(0, 6);
      param->setDefault(3);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }

    {
      OFX::IntParamDescriptor *param = desc.defineIntParam(kParamMaxFrames);
      param->setLabel("Max Frames");
      param->setHint("Maximal number of frames to extract from the video file.");
      param->setRange(0, kOfxFlagInfiniteMax);
      param->setDisplayRange(0, 1000);
      param->setDefault(0);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }

    {
      OFX::IntParamDescriptor *param = desc.defineIntParam(kParamMaxCalibFrames);
      param->setLabel("Max Calibration Frames");
      param->setHint("Maximal number of frames to use to calibrate from the selected frames.");
      param->setRange(0, kOfxFlagInfiniteMax);
      param->setDisplayRange(0, 1000);
      param->setDefault(100);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }

    {
      OFX::IntParamDescriptor *param = desc.defineIntParam(kParamCalibGridSize);
      param->setLabel("Max Calibration Grid Size");
      param->setHint("Define the number of cells per edge.");
      param->setRange(0, kOfxFlagInfiniteMax);
      param->setDisplayRange(0, 100);
      param->setDefault(10);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }

    {
      OFX::IntParamDescriptor *param = desc.defineIntParam(kParamMinInputFrames);
      param->setLabel("Min Input Frames");
      param->setHint("Minimal number of frames to limit the calibration refinement loop.");
      param->setRange(0, kOfxFlagInfiniteMax);
      param->setDisplayRange(0, 1000);
      param->setDefault(10);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }

    {
      OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamMaxTotalAvgErr);
      param->setLabel("Max Total Average Error");
      param->setHint("Maximal limit of the total average error");
      param->setRange(0, 1);
      param->setDisplayRange(0, 1);
      param->setDefault(0.1);
      param->setAnimates(false);
      param->setParent(*groupCalibration);
    }
    
    {
      OFX::PushButtonParamDescriptor *param = desc.definePushButtonParam(kParamCalibrate);
      param->setLabel("Calibrate");
      param->setHint("calibrate");
      param->setParent(*groupCalibration);
    }

  }

  //Output Group
  {
    OFX::GroupParamDescriptor *groupOutput = desc.defineGroupParam(kParamGroupOutput);
    groupOutput->setLabel("Output");
    groupOutput->setAsTab();
    
    {
      OFX::BooleanParamDescriptor *param = desc.defineBooleanParam(kParamOutputIsCalibrated);
      param->setLabel("Is calibrated");
      param->setHint("Is calibrated");
      param->setParent(*groupOutput);
    }
    
    {
      OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputAvgReprojErr);
      param->setLabel("Average Reprojection Error");
      param->setDisplayRange(0, 10);
      param->setEvaluateOnChange(false);
      param->setEnabled(false);
      param->setAnimates(true);
      param->setParent(*groupOutput);
      param->setLayoutHint(OFX::eLayoutHintDivider);
    }
    
    {
      OFX::GroupParamDescriptor *groupCamera = desc.defineGroupParam(kParamOutputCameraGroup);
      groupCamera->setLabel("Intrinsics Camera Parameters");
      groupCamera->setParent(*groupOutput);
      groupCamera->setOpen(true);

      {
        OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputFocalLenght);
        param->setLabel("Focal Length");
        param->setDisplayRange(1, 100);
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupCamera);
      }

      {
        OFX::Double2DParamDescriptor *param = desc.defineDouble2DParam(kParamOutputPrincipalPointOffset);
        param->setLabel("Principal Point");
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupCamera);
      }
    }
    
    {    
      OFX::GroupParamDescriptor *groupLensDistortion = desc.defineGroupParam(kParamOutputLensDistortionGroup);
      groupLensDistortion->setLabel("Lens Distortion Coefficients");
      groupLensDistortion->setParent(*groupOutput);
      groupLensDistortion->setOpen(true);
        
      {
        OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputRadialCoef1);
        param->setLabel("Radial Coef1");
        param->setDisplayRange(0, 10);
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupLensDistortion);
      }

      {
        OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputRadialCoef2);
        param->setLabel("Radial Coef2");
        param->setDisplayRange(0, 10);
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupLensDistortion);
      }

      {
        OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputRadialCoef3);
        param->setLabel("Radial Coef3");
        param->setDisplayRange(0, 10);
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupLensDistortion);
      }

      {
        OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputTangentialCoef1);
        param->setLabel("Tangential Coef1");
        param->setDisplayRange(0, 10);
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupLensDistortion);
      }

      {
        OFX::DoubleParamDescriptor *param = desc.defineDoubleParam(kParamOutputTangentialCoef2);
        param->setLabel("Tangential Coef2");
        param->setDisplayRange(0, 10);
        param->setAnimates(true);
        param->setEvaluateOnChange(false);
        param->setEnabled(false);
        param->setAnimates(false);
        param->setParent(*groupLensDistortion);
        param->setLayoutHint(OFX::eLayoutHintDivider);
      }
    }
    
    {
      OFX::PushButtonParamDescriptor *param = desc.definePushButtonParam(kParamOutputClear);
      param->setLabel("Clear");
      param->setHint("clear");
      param->setEnabled(false);
      param->setParent(*groupOutput);
    }
  }
  
  //Debug Group
  {
    OFX::GroupParamDescriptor *groupDebug = desc.defineGroupParam(kParamGroupDebug);
    groupDebug->setLabel("Debug");
    groupDebug->setAsTab();

    {
      OFX::BooleanParamDescriptor *param = desc.defineBooleanParam(kParamDebugEnable);
      param->setLabel("Enable Debug");
      param->setHint("Would you want to export undistorted images?");
      param->setParent(*groupDebug);
    }

    {
      OFX::StringParamDescriptor *param = desc.defineStringParam(kParamDebugRejectedImgFolder);
      param->setLabel("Rejected Frames");
      param->setHint("Folder to export delete images during the calibration refinement loop.");
      param->setStringType(OFX::eStringTypeDirectoryPath);
      param->setFilePathExists(true);
      param->setParent(*groupDebug);
    }

    {
      OFX::StringParamDescriptor *param = desc.defineStringParam(kParamDebugSelectedImgFolder);
      param->setLabel("Selected Frames");
      param->setHint("Folder to export debug images.");
      param->setStringType(OFX::eStringTypeDirectoryPath);
      param->setFilePathExists(true);
      param->setParent(*groupDebug);
    }
  }
}
/**
 * @brief Function called to describe the plugin controls and features.
 * @param[in, out]   desc       Effect descriptor
 * @param[in]        context    Application context
 */
void SobelPluginFactory::describeInContext(OFX::ImageEffectDescriptor& desc, OFX::EContext context)
{
    OFX::ClipDescriptor* srcClip = desc.defineClip(kOfxImageEffectSimpleSourceClipName);
    srcClip->addSupportedComponent(OFX::ePixelComponentRGBA);
    srcClip->addSupportedComponent(OFX::ePixelComponentRGB);
    srcClip->addSupportedComponent(OFX::ePixelComponentAlpha);
    srcClip->setSupportsTiles(kSupportTiles);

    OFX::ClipDescriptor* dstClip = desc.defineClip(kOfxImageEffectOutputClipName);
    dstClip->addSupportedComponent(OFX::ePixelComponentRGBA);
    dstClip->addSupportedComponent(OFX::ePixelComponentRGB);
    dstClip->setSupportsTiles(kSupportTiles);

    OFX::Double2DParamDescriptor* size = desc.defineDouble2DParam(kParamSize);
    size->setLabel("Size");
    size->setDefault(1.0, 1.0);
    size->setRange(0.0, 0.0, std::numeric_limits<double>::max(), std::numeric_limits<double>::max());
    size->setDisplayRange(0, 0, 10, 10);
    size->setDoubleType(OFX::eDoubleTypeScale);

    OFX::GroupParamDescriptor* advanced = desc.defineGroupParam(kParamGroupAdvanced);
    advanced->setLabel("Advanced");

    OFX::BooleanParamDescriptor* unidimensional = desc.defineBooleanParam(kParamUnidimensional);
    unidimensional->setLabel("Unidimensional");
    unidimensional->setHint("Instead of using a square convolution matrix, use 1D kernels.");
    unidimensional->setDefault(false);
    unidimensional->setParent(advanced);

    OFX::BooleanParamDescriptor* reverseKernel = desc.defineBooleanParam(kParamReverseKernel);
    reverseKernel->setLabel("Reverse");
    reverseKernel->setHint("Reverse the kernel (convolution or correlation).");
    reverseKernel->setDefault(false);
    reverseKernel->setParent(advanced);

    OFX::BooleanParamDescriptor* normalizedKernel = desc.defineBooleanParam(kParamNormalizedKernel);
    normalizedKernel->setLabel("Normalized kernel");
    normalizedKernel->setHint("Use a normalized kernel to compute the gradient.");
    normalizedKernel->setDefault(true);
    normalizedKernel->setParent(advanced);

    OFX::DoubleParamDescriptor* kernelEpsilon = desc.defineDoubleParam(kParamKernelEpsilon);
    kernelEpsilon->setLabel("Kernel espilon value");
    kernelEpsilon->setHint("Threshold at which we no longer consider the values of the function.");
    kernelEpsilon->setDefault(0.01);
    kernelEpsilon->setRange(std::numeric_limits<double>::epsilon(), 1);
    kernelEpsilon->setDisplayRange(0, 0.01);
    kernelEpsilon->setParent(advanced);

    OFX::ChoiceParamDescriptor* pass = desc.defineChoiceParam(kParamPass);
    pass->setLabel("Pass");
    pass->setHint("The sobel filter is computed using a 2D separable filter. So it consists in 2 passes.\n"
                  "By default we compute the 2 passes, but with this option you can separate each pass.");
    pass->appendOption(kParamPassFull);
    pass->appendOption(kParamPass1);
    pass->appendOption(kParamPass2);
    pass->setDefault(0);
    pass->setParent(advanced);

    OFX::ChoiceParamDescriptor* border = desc.defineChoiceParam(kParamBorder);
    border->setLabel("Gradient border");
    border->setHint("Border method for gradient computation.");
    border->appendOption(kParamBorderMirror);
    border->appendOption(kParamBorderConstant);
    border->appendOption(kParamBorderBlack);
    border->appendOption(kParamBorderPadded);

    OFX::BooleanParamDescriptor* computeNorm = desc.defineBooleanParam(kParamComputeGradientNorm);
    computeNorm->setLabel("Compute norm");
    computeNorm->setHint("To disable the norm computation, if you don't need it.");
    computeNorm->setDefault(true);

    OFX::BooleanParamDescriptor* normManhattan = desc.defineBooleanParam(kParamGradientNormManhattan);
    normManhattan->setLabel("Use the manhattan norm");
    normManhattan->setHint("Use manhattan norm instead of standard one.");
    normManhattan->setDefault(false);

    OFX::BooleanParamDescriptor* computeGradientDirection = desc.defineBooleanParam(kParamComputeGradientDirection);
    computeGradientDirection->setLabel("Gradient direction");
    computeGradientDirection->setHint("To disable the gradient direction computation, if you don't need it.");
    computeGradientDirection->setDefault(false);

    OFX::BooleanParamDescriptor* gradientDirectionAbs = desc.defineBooleanParam(kParamGradientDirectionAbs);
    gradientDirectionAbs->setLabel("Angle between 0 and PI");
    gradientDirectionAbs->setHint("Limit gradient direction between 0 and PI.");
    gradientDirectionAbs->setDefault(true);

    OFX::PushButtonParamDescriptor* infosButton = desc.definePushButtonParam(kParamInfos);
    infosButton->setLabel("Infos");

    OFX::ChoiceParamDescriptor* outputComponent = desc.defineChoiceParam(kParamOutputComponent);
    outputComponent->setLabel("Output component");
    outputComponent->appendOption(OFX::getImageEffectHostDescription()->supportsPixelComponent(OFX::ePixelComponentRGB)
                                      ? kParamOutputComponentRGB
                                      : "---");
    outputComponent->appendOption(OFX::getImageEffectHostDescription()->supportsPixelComponent(OFX::ePixelComponentRGBA)
                                      ? kParamOutputComponentRGBA
                                      : "---");
    outputComponent->setDefault(0);
    outputComponent->setIsSecret(OFX::getImageEffectHostDescription()->_supportedComponents.size() == 1);
}
/**
 * @brief Function called to describe the plugin controls and features.
 * @param[in, out]   desc       Effect descriptor
 * @param[in]        context    Application context
 */
void HistogramKeyerPluginFactory::describeInContext( OFX::ImageEffectDescriptor& desc,OFX::EContext context )
{
	
	OFX::ClipDescriptor* srcClip = desc.defineClip( kOfxImageEffectSimpleSourceClipName );
	srcClip->addSupportedComponent( OFX::ePixelComponentRGBA );
	srcClip->addSupportedComponent( OFX::ePixelComponentRGB );
	srcClip->addSupportedComponent( OFX::ePixelComponentAlpha );
	srcClip->setSupportsTiles( kSupportTiles );

	OFX::ClipDescriptor* dstClip = desc.defineClip( kOfxImageEffectOutputClipName );
	dstClip->addSupportedComponent( OFX::ePixelComponentRGBA );
	dstClip->addSupportedComponent( OFX::ePixelComponentRGB );
	dstClip->addSupportedComponent( OFX::ePixelComponentAlpha );
	dstClip->setSupportsTiles( kSupportTiles );

	//global display
	OFX::BooleanParamDescriptor* boolGLOBAL = desc.defineBooleanParam(kGlobalDisplay);
	boolGLOBAL->setHint("Display global overlay on screen.");
	boolGLOBAL->setDefault(true);
		
    // if parametric parameters are supported
	if( OFX::getImageEffectHostDescription()->supportsParametricParameter )
	{
		OFX::ParametricParamDescriptor* curvesRGB = desc.defineParametricParam( kParamRGBColorSelection );
		OFX::ParametricParamDescriptor* curvesHSL = desc.defineParametricParam( kParamHSLColorSelection );
		
		//Group Param (RGB & HSL)
		OFX::GroupParamDescriptor *groupRGB = desc.defineGroupParam(kGroupRGB);
		groupRGB->setLabel(kGroupRGBLabel);
		OFX::GroupParamDescriptor *groupHSL = desc.defineGroupParam(kGroupHSL);
		groupHSL->setLabel(kGroupHSLLabel);

		//define the graphic aspect
		curvesRGB->setRange( 0.0, 1.0 );		//set range on RGB curve
		curvesHSL->setRange( 0.0, 1.0 );		//set range on HSL curve
		curvesRGB->setDimension(nbCurvesRGB);	//3 curves on RGB
		curvesHSL->setDimension(nbCurvesHSL);	//3 curves on HSL

		//Add curves RGB
		curvesRGB->setDimensionLabel( kParamColorSelectionRed, 0 );			// 0 on RGB is red
		curvesRGB->setDimensionLabel( kParamColorSelectionGreen, 1 );		// 1 on RGB is green
		curvesRGB->setDimensionLabel( kParamColorSelectionBlue, 2 );		// 2 on RGB is blue
		//Add curves HSL
		curvesHSL->setDimensionLabel( kParamColorSelectionHue, 0 );			// 0 on HSL is hue
		curvesHSL->setDimensionLabel( kParamColorSelectionSaturation, 1 );	// 1 on HSL is saturation
		curvesHSL->setDimensionLabel( kParamColorSelectionLightness, 2 );	// 2 on HSK is lightness
		//define curves color RGB 
		curvesRGB->setHint( "Color selection" );		
		static const OfxRGBColourD red   = {1,0,0};		//set red color to red curve
		static const OfxRGBColourD green = {0,1,0};		//set green color to green curve
		static const OfxRGBColourD blue  = {0,0,1};		//set blue color to blue curve
		curvesRGB->setUIColour( 0, red );
		curvesRGB->setUIColour( 1, green );
		curvesRGB->setUIColour( 2, blue );
		//define curves color HSL 
		curvesHSL->setHint( "Color selection" );
		curvesHSL->setUIColour( 0, red );		//set red color on hue curve
		curvesHSL->setUIColour( 1, green );		//set green color on saturation curve
		curvesHSL->setUIColour( 2, blue );		//set lightness color on saturation curve
		
		curvesRGB->setInteractDescriptor( new OFX::DefaultParamInteractWrap<RGBParamOverlayDescriptor>() );	//attach parametric curve to RGBOverlay
		curvesHSL->setInteractDescriptor( new OFX::DefaultParamInteractWrap<HSLParamOverlayDescriptor>() );	//attach parametric curve to HSLOverlay
		
		//add curves to their groups
		curvesRGB->setParent(groupRGB);	//add RGB curves to RGB group
		curvesHSL->setParent(groupHSL); //add HSL curves to HSL group 
		
		//Set each curves to initial value
		curvesRGB->setIdentity();
		curvesHSL->setIdentity();
		//add 2 control points (0,1) and (1,1) for each channel
		for(unsigned int i=0; i< nbCurvesRGB; ++i)
		{
			//curvesRGB->addControlPoint( i, 0.0, 0.0, 1.0, false );
			curvesRGB->addControlPoint( i, 0.0, 1.0, 1.0, false );
		}
		for(unsigned int i=0; i< nbCurvesHSL; ++i)
		{
			//curvesHSL->addControlPoint( i, 0.0, 0.0, 1.0, false );
			curvesHSL->addControlPoint( i, 0.0, 1.0, 1.0, false );
		}
		
		//Channels checkboxes (RGB)
		OFX::BooleanParamDescriptor* boolR = desc.defineBooleanParam(kBoolRed);
		boolR->setDefault(false);							//red channel is not selected by default
		boolR->setHint("Activate Red channel");
		boolR->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolR->setParent(groupRGB);
		//red multiplier
		OFX::DoubleParamDescriptor* redMultiplier = desc.defineDoubleParam(kMultiplierRed);
		redMultiplier->setLabel(kMultiplierLabel);
		redMultiplier->setHint("Determinate curve from selection precision.");
		redMultiplier->setRange(1, 1000);
		redMultiplier->setDisplayRange(0,5);
		redMultiplier->setDefault(1);
		redMultiplier->setParent(groupRGB);
		
		
		OFX::BooleanParamDescriptor* boolG = desc.defineBooleanParam(kBoolGreen);
		boolG->setDefault(false);						//green channel is not selected by default
		boolG->setHint("Activate Green channel");
		boolG->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolG->setParent(groupRGB);
		//green multiplier
		OFX::DoubleParamDescriptor* greenMultiplier = desc.defineDoubleParam(kMultiplierGreen);
		greenMultiplier->setLabel(kMultiplierLabel);
		greenMultiplier->setHint("Determinate curve from selection precision.");
		greenMultiplier->setRange(1, 1000);
		greenMultiplier->setDisplayRange(0,5);
		greenMultiplier->setDefault(1);
		greenMultiplier->setParent(groupRGB);
		
		
		OFX::BooleanParamDescriptor* boolB = desc.defineBooleanParam(kBoolBlue);
		boolB->setHint("Activate Blue channel");
		boolB->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolB->setDefault(false);						   //blue channel is not selected by default
		boolB->setParent(groupRGB);
		//blue multiplier
		OFX::DoubleParamDescriptor* blueMultiplier = desc.defineDoubleParam(kMultiplierBlue);
		blueMultiplier->setLabel(kMultiplierLabel);
		blueMultiplier->setHint("Determinate curve from selection precision.");
		blueMultiplier->setRange(1, 1000);
		blueMultiplier->setDisplayRange(0,5);
		blueMultiplier->setDefault(1);
		blueMultiplier->setParent(groupRGB);
		
		
		
		//Channels check box (HSL)
		OFX::BooleanParamDescriptor* boolH = desc.defineBooleanParam(kBoolHue);
		boolH->setDefault(false);
		boolH->setHint("Activate Hue channel");
		boolH->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolH->setParent(groupHSL);
		//Hue multiplier
		OFX::DoubleParamDescriptor* hueMultiplier = desc.defineDoubleParam(kMultiplierHue);
		hueMultiplier->setLabel(kMultiplierLabel);
		hueMultiplier->setHint("Determinate curve from selection precision.");
		hueMultiplier->setRange(1, 1000);
		hueMultiplier->setDisplayRange(0,5);
		hueMultiplier->setDefault(1);
		hueMultiplier->setParent(groupHSL);
		
		
		OFX::BooleanParamDescriptor* boolS = desc.defineBooleanParam(kBoolSaturation);
		boolS->setDefault(false);
		boolS->setHint("Activate Saturation channel");
		boolS->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolS->setParent(groupHSL);
		//Saturation multiplier
		OFX::DoubleParamDescriptor* saturationMultiplier = desc.defineDoubleParam(kMultiplierSaturation);
		saturationMultiplier->setLabel(kMultiplierLabel);
		saturationMultiplier->setHint("Determinate curve from selection precision.");
		saturationMultiplier->setRange(1, 1000);
		saturationMultiplier->setDisplayRange(0,5);
		saturationMultiplier->setDefault(1);
		saturationMultiplier->setParent(groupHSL);
		
		OFX::BooleanParamDescriptor* boolL = desc.defineBooleanParam(kBoolLightness);
		boolL->setHint("Activate Lightness channel");
		boolL->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolL->setDefault(false);
		boolL->setParent(groupHSL);
		//Lightness multiplier
		OFX::DoubleParamDescriptor* lightnessMultiplier = desc.defineDoubleParam(kMultiplierLightness);
		lightnessMultiplier->setLabel(kMultiplierLabel);
		lightnessMultiplier->setHint("Determinate curve from selection precision.");
		lightnessMultiplier->setRange(1, 1000);
		lightnessMultiplier->setDisplayRange(0,5);
		lightnessMultiplier->setDefault(1);
		lightnessMultiplier->setParent(groupHSL);
		
		//Clean Button (RGB)
		OFX::PushButtonParamDescriptor* resetButtonRGB = desc.definePushButtonParam(kButtonResetRGB);
		resetButtonRGB->setLabel(kButtonResetRGBLabel);
		resetButtonRGB->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		resetButtonRGB->setHint("Reset the selected RGB curves. \n Warning : the curves may not be refreshed click on overlay to refresh.");
		resetButtonRGB->setParent(groupRGB);
		
		//Selection To Curves Button (RGB)
		OFX::PushButtonParamDescriptor* selectionToCurveButtonRGB = desc.definePushButtonParam(kButtonSelectionToCurveRGB);
		selectionToCurveButtonRGB->setLabel(kButtonSelectionToCurveRGBLabel);
		selectionToCurveButtonRGB->setHint("Load selected RGB curves with selection data. \n Warning : the curves may not be refreshed click on overlay to refresh.");
		selectionToCurveButtonRGB->setParent(groupRGB);
		
		//Append selection to curves button (RGB)
		OFX::PushButtonParamDescriptor* appendSelectionToCurveRGB = desc.definePushButtonParam(kButtonAppendSelectionToCurveRGB);
		appendSelectionToCurveRGB->setLabel(kButtonAppendSelectionToCurveRGBLabel);				//add label
		appendSelectionToCurveRGB->setHint("Append current selection to selected RGB channels");//help
		appendSelectionToCurveRGB->setParent(groupRGB);											//add to RGB group
		
		//Clean Button (HSL)
		OFX::PushButtonParamDescriptor* resetButtonHSL = desc.definePushButtonParam(kButtonResetHSL);
		resetButtonHSL->setLabel(kButtonResetHSLLabel);
		resetButtonHSL->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		resetButtonHSL->setHint("Reset the selected HSL curves \n Warning : the curves may not be refreshed click on overlay to refresh.");
		resetButtonHSL->setParent(groupHSL);
		
		//Selection To Curves Button (HSL)
		OFX::PushButtonParamDescriptor* selectionToCurveButtonHSL = desc.definePushButtonParam(kButtonSelectionToCurveHSL);
		selectionToCurveButtonHSL->setLabel(kButtonSelectionToCurveHSLLabel);
		selectionToCurveButtonHSL->setHint("Load selected HSL curves with selection data. \n Warning : the curves may not be refreshed click on overlay to refresh.");
		selectionToCurveButtonHSL->setParent(groupHSL);
		
		//Append selection to curves button (HSL)
		OFX::PushButtonParamDescriptor* appendSelectionToCurveHSL = desc.definePushButtonParam(kButtonAppendSelectionToCurveHSL);
		appendSelectionToCurveHSL->setLabel(kButtonAppendSelectionToCurveHSLLabel);				//add label
		appendSelectionToCurveHSL->setHint("Append current selection to selected HSL channels");//help
		appendSelectionToCurveHSL->setParent(groupHSL);											//add to HSL group
		
		
		//Close RGB group (group states by default on screen)
		groupRGB->setOpen(false);
		groupHSL->setOpen(true);
	}
	
	//Selection group
	{
		OFX::GroupParamDescriptor *groupSelection = desc.defineGroupParam(kGroupSelection);
		groupSelection->setLabel(kGroupSelectionLabel);
		groupSelection->setOpen(false);
		groupSelection->setAsTab();
		//display selection
		OFX::BooleanParamDescriptor* boolDisplaySelection = desc.defineBooleanParam(kBoolSelection);
		boolDisplaySelection->setDefault(true);
		boolDisplaySelection->setEvaluateOnChange(false);// don't need to recompute on change
		boolDisplaySelection->setHint("Display the selected zone on screen.");
		boolDisplaySelection->setParent(groupSelection);
		//clear selection
		OFX::PushButtonParamDescriptor* resetSelectionButton = desc.definePushButtonParam(kButtonResetSelection);
		resetSelectionButton->setLabel(kButtonResetSelectionLabel);
		resetSelectionButton->setHint("Reset user's selection.");
		resetSelectionButton->setParent(groupSelection);
		//selection mode
		OFX::ChoiceParamDescriptor* selectionMode = desc.defineChoiceParam(kSelectionModeListParamLabel);
		selectionMode->setLabel(kSelectionModeListParamLabel);
		selectionMode->setHint( "Selection mode \n - unique : reset past selection before selection \n - additive : add pixels to current selection \n -subtractive : remote pixel from current selection");
		selectionMode->appendOption(kSelectionModeListParamOpt2);
		selectionMode->appendOption(kSelectionModeListParamOpt1);
		selectionMode->appendOption(kSelectionModeListParamOpt3);
		selectionMode->setParent(groupSelection);
		//Precision of selection to curve
		OFX::IntParamDescriptor* precisionSelectionToCurve = desc.defineIntParam(kprecisionCurveFromSelection);
		precisionSelectionToCurve->setLabel(kprecisionCurveFromSelectionLabel);
		precisionSelectionToCurve->setHint("Determinate curve from selection precision.");
		precisionSelectionToCurve->setRange(1, 1000);
		precisionSelectionToCurve->setDisplayRange(1, 300.0 );
		precisionSelectionToCurve->setDefault(curveFromSelection);
		precisionSelectionToCurve->setEvaluateOnChange(false); // don't need to recompute on change
		precisionSelectionToCurve->setParent(groupSelection);
	}
	
	//Histogram overlay group
	{
		OFX::GroupParamDescriptor *groupHistogramOverlay = desc.defineGroupParam(kGroupHistogramOverlay);
		groupHistogramOverlay->setLabel(kGroupHistogramOverlayLabel);
		groupHistogramOverlay->setOpen(true);
		groupHistogramOverlay->setAsTab();

		//Histogram display settings
		OFX::ChoiceParamDescriptor* gammaType = desc.defineChoiceParam(kHistoDisplayListParamLabel);
		gammaType->setLabel(kHistoDisplayListParamLabel);
		gammaType->setEvaluateOnChange(false); // don't need to recompute on change
		gammaType->setHint("Histogram display \n -global : normalize all of channels \n -by channel : keep proportions between channels");
		gammaType->appendOption(kHistoDisplayListParamOpt2);
		gammaType->appendOption(kHistoDisplayListParamOpt1);
		gammaType->setParent(groupHistogramOverlay);	

		//Clean all Button
		OFX::PushButtonParamDescriptor* resetButtonAll = desc.definePushButtonParam(kButtonResetAll);
		resetButtonAll->setLabel(kButtonResetAllLabel);
		resetButtonAll->setHint("Reset all curves. \n Waring : the curves may not be refreshed click on overlay to refresh.");
		resetButtonAll->setParent(groupHistogramOverlay);
	}
	
	///Advanced group
	{
		OFX::GroupParamDescriptor *groupAdvanced = desc.defineGroupParam(kGroupAdvanced);
		groupAdvanced->setLabel(kGroupAdvancedLabel);
		groupAdvanced->setOpen(false);
		groupAdvanced->setAsTab();
		
		//nbOfstep (advanced group)
		OFX::IntParamDescriptor* nbStepRange = desc.defineIntParam(knbStepRange);
		nbStepRange->setLabel(knbStepRangeLabel);
		nbStepRange->setHint("Determinate histogram overlay precision.");
		nbStepRange->setRange(1, 1000);
		nbStepRange->setDisplayRange(1, 600.0 );
		nbStepRange->setDefault(255);
		nbStepRange->setEvaluateOnChange(false); // don't need to recompute on change
		nbStepRange->setParent(groupAdvanced);
		//selection multiplier (advanced group)
		OFX::DoubleParamDescriptor* selectionMultiplier = desc.defineDoubleParam(kselectionMultiplier);
		selectionMultiplier->setLabel(kselectionMultiplierLabel);
		selectionMultiplier->setHint("With high values, small selection are more visible.");
		selectionMultiplier->setRange(0.001,1000.0);
		selectionMultiplier->setDisplayRange(0.0, 100.0 );
		selectionMultiplier->setDefault(2.0);
		selectionMultiplier->setEvaluateOnChange(false); // don't need to recompute on change
		selectionMultiplier->setParent(groupAdvanced);

		//Refresh histograms overlay Button
		OFX::PushButtonParamDescriptor* refreshOverlayButton = desc.definePushButtonParam(kButtonRefreshOverlay);
		refreshOverlayButton->setLabel(kButtonRefreshOverlayLabel);
		refreshOverlayButton->setHint("Refresh histogram overlay.");
		refreshOverlayButton->setParent(groupAdvanced);
		
		//clamp values to 0 and 1
		OFX::BooleanParamDescriptor* clampCurveValues = desc.defineBooleanParam(kBoolClampValues);
		clampCurveValues->setHint("Clamp curve value : values superior to 1 or inferior to 0 will be clamp in process.");
		clampCurveValues->setDefault(true);
		clampCurveValues->setParent(groupAdvanced);
	}
	//Output settings
	OFX::ChoiceParamDescriptor* outputType = desc.defineChoiceParam(kOutputListParamLabel);
	outputType->setLabel(kOutputListParamLabel);
	outputType->setHint( "Output type \n Alpha channel or Black and White");
	outputType->appendOption(kOutputListParamOpt1);
	outputType->appendOption(kOutputListParamOpt2);
	outputType->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished

	//Reverse mask
	OFX::BooleanParamDescriptor* boolReverseMask = desc.defineBooleanParam(kBoolReverseMask);
	boolReverseMask->setDefault(false);
	boolReverseMask->setHint("Revert alpha mask");
}
/**
 * @brief Function called to describe the plugin controls and features.
 * @param[in, out]   desc       Effect descriptor
 * @param[in]        context    Application context
 */
void ColorSpacePluginFactory::describeInContext(OFX::ImageEffectDescriptor& desc, OFX::EContext context)
{
    OFX::ClipDescriptor* srcClip = desc.defineClip(kOfxImageEffectSimpleSourceClipName);
    srcClip->addSupportedComponent(OFX::ePixelComponentRGBA);
    srcClip->addSupportedComponent(OFX::ePixelComponentRGB);
    srcClip->addSupportedComponent(OFX::ePixelComponentAlpha);
    srcClip->setSupportsTiles(kSupportTiles);

    // Create the mandated output clip
    OFX::ClipDescriptor* dstClip = desc.defineClip(kOfxImageEffectOutputClipName);
    dstClip->addSupportedComponent(OFX::ePixelComponentRGBA);
    dstClip->addSupportedComponent(OFX::ePixelComponentRGB);
    dstClip->addSupportedComponent(OFX::ePixelComponentAlpha);
    dstClip->setSupportsTiles(kSupportTiles);

    /* ----------------------- INPUT PARAMETERS -------------------------- */

    OFX::GroupParamDescriptor* inGroup = desc.defineGroupParam(kColorSpaceIn);
    inGroup->setLabel("Input configuration");

    OFX::ChoiceParamDescriptor* inReferenceSpace = desc.defineChoiceParam(kColorSpaceReferenceSpaceIn);
    inReferenceSpace->setLabel("Reference Space");
    inReferenceSpace->setParent(inGroup);

    OFX::GroupParamDescriptor* inCustom = desc.defineGroupParam(kColorSpaceCustomizedIn);
    inCustom->setLabel("Custom");
    inCustom->setOpen(false);
    inCustom->setParent(inGroup);

    OFX::ChoiceParamDescriptor* inGradationLaw = desc.defineChoiceParam(kColorSpaceGradationLawIn);
    inGradationLaw->setLabel("Gradation Law");
    inGradationLaw->setParent(inCustom);

    OFX::DoubleParamDescriptor* inGammaValue = desc.defineDoubleParam(kColorSpaceInGammaValue);
    inGammaValue->setLabel("Gamma");
    inGammaValue->setDefault(1.0);
    inGammaValue->setRange(0.0, std::numeric_limits<double>::max());
    inGammaValue->setDisplayRange(0.0, 5.0);
    inGammaValue->setHint("Adjust the Gamma.");
    inGammaValue->setParent(inCustom);

    OFX::DoubleParamDescriptor* inBlackPoint = desc.defineDoubleParam(kColorSpaceInBlackPoint);
    inBlackPoint->setLabel("Black Point");
    inBlackPoint->setDefault(0.0);
    inBlackPoint->setRange(0.0, 1.0);
    inBlackPoint->setDisplayRange(0.0, 1.0);
    inBlackPoint->setHint("Adjust the Black Point.");
    inBlackPoint->setParent(inCustom);

    OFX::DoubleParamDescriptor* inWhitePoint = desc.defineDoubleParam(kColorSpaceInWhitePoint);
    inWhitePoint->setLabel("White Point");
    inWhitePoint->setDefault(1.0);
    inWhitePoint->setRange(0.0, 1.0);
    inWhitePoint->setDisplayRange(0.0, 1.0);
    inWhitePoint->setHint("Adjust the White Point.");
    inWhitePoint->setParent(inCustom);

    OFX::DoubleParamDescriptor* inGammaSensito = desc.defineDoubleParam(kColorSpaceInGammaSensito);
    inGammaSensito->setLabel("Gamma Sensito");
    inGammaSensito->setDefault(1.0);
    inGammaSensito->setRange(0.0, std::numeric_limits<double>::max());
    inGammaSensito->setDisplayRange(0.0, 5.0);
    inGammaSensito->setHint("Adjust the Gamma Sensito.");
    inGammaSensito->setParent(inCustom);

    OFX::ChoiceParamDescriptor* inLayout = desc.defineChoiceParam(kColorSpaceLayoutIn);
    inLayout->setLabel("Layout");
    inLayout->setParent(inCustom);

    OFX::ChoiceParamDescriptor* inTempColor = desc.defineChoiceParam(kColorSpaceTempColorIn);
    inTempColor->setLabel("Color Temperature");
    inTempColor->setHint("Select the color temperature.");
    inTempColor->setParent(inCustom);

    OFX::GroupParamDescriptor* inPrimaries = desc.defineGroupParam(kColorSpacePrimariesIn);
    inPrimaries->setLabel("Primaries color");
    inPrimaries->setOpen(false);
    inPrimaries->setParent(inCustom);

    OFX::DoubleParamDescriptor* inXr = desc.defineDoubleParam(kColorSpaceXrIn);
    inXr->setLabel("X red");
    inXr->setDefault(1.0);
    inXr->setRange(0.0, 1.0);
    inXr->setDisplayRange(0.0, 1.0);
    inXr->setHint("Adjust the X red primary color.");
    inXr->setParent(inPrimaries);

    OFX::DoubleParamDescriptor* inYr = desc.defineDoubleParam(kColorSpaceYrIn);
    inYr->setLabel("Y red");
    inYr->setDefault(1.0);
    inYr->setRange(0.0, 1.0);
    inYr->setDisplayRange(0.0, 1.0);
    inYr->setHint("Adjust the Y red primary color.");
    inYr->setParent(inPrimaries);

    OFX::DoubleParamDescriptor* inXg = desc.defineDoubleParam(kColorSpaceXgIn);
    inXg->setLabel("X green");
    inXg->setDefault(1.0);
    inXg->setRange(0.0, 1.0);
    inXg->setDisplayRange(0.0, 1.0);
    inXg->setHint("Adjust the X green primary color.");
    inXg->setParent(inPrimaries);

    OFX::DoubleParamDescriptor* inYg = desc.defineDoubleParam(kColorSpaceYgIn);
    inYg->setLabel("Y green");
    inYg->setDefault(1.0);
    inYg->setRange(0.0, 1.0);
    inYg->setDisplayRange(0.0, 1.0);
    inYg->setHint("Adjust the Y green primary color.");
    inYg->setParent(inPrimaries);

    OFX::DoubleParamDescriptor* inXb = desc.defineDoubleParam(kColorSpaceXbIn);
    inXb->setLabel("X blue");
    inXb->setDefault(1.0);
    inXb->setRange(0.0, 1.0);
    inXb->setDisplayRange(0.0, 1.0);
    inXb->setHint("Adjust the X blue primary color.");
    inXb->setParent(inPrimaries);

    OFX::DoubleParamDescriptor* inYb = desc.defineDoubleParam(kColorSpaceYbIn);
    inYb->setLabel("Y blue");
    inYb->setDefault(1.0);
    inYb->setRange(0.0, 1.0);
    inYb->setDisplayRange(0.0, 1.0);
    inYb->setHint("Adjust the Y blue primary color.");
    inYb->setParent(inPrimaries);

    /* ----------------------- OUTPUT PARAMETERS -------------------------- */

    OFX::GroupParamDescriptor* outGroup = desc.defineGroupParam(kColorSpaceOut);
    outGroup->setLabel("Output configuration");

    OFX::ChoiceParamDescriptor* outReferenceSpace = desc.defineChoiceParam(kColorSpaceReferenceSpaceOut);
    outReferenceSpace->setLabel("Reference Space");
    outReferenceSpace->setParent(outGroup);

    OFX::GroupParamDescriptor* outCustom = desc.defineGroupParam(kColorSpaceCustomizedOut);
    outCustom->setLabel("Custom");
    outCustom->setOpen(false);
    outCustom->setParent(outGroup);

    OFX::ChoiceParamDescriptor* outGradationLaw = desc.defineChoiceParam(kColorSpaceGradationLawOut);
    outGradationLaw->setLabel("Gradation Law");
    outGradationLaw->setParent(outCustom);

    OFX::DoubleParamDescriptor* outGammaValue = desc.defineDoubleParam(kColorSpaceOutGammaValue);
    outGammaValue->setLabel("Gamma");
    outGammaValue->setDefault(1.0);
    outGammaValue->setRange(0.0, std::numeric_limits<double>::max());
    outGammaValue->setDisplayRange(0.0, 5.0);
    outGammaValue->setHint("Adjust the Gamma.");
    outGammaValue->setParent(outCustom);

    OFX::DoubleParamDescriptor* outBlackPoint = desc.defineDoubleParam(kColorSpaceOutBlackPoint);
    outBlackPoint->setLabel("Black Point");
    outBlackPoint->setDefault(0.0);
    outBlackPoint->setRange(0.0, 1.0);
    outBlackPoint->setDisplayRange(0.0, 1.0);
    outBlackPoint->setHint("Adjust the Black Point.");
    outBlackPoint->setParent(outCustom);

    OFX::DoubleParamDescriptor* outWhitePoint = desc.defineDoubleParam(kColorSpaceOutWhitePoint);
    outWhitePoint->setLabel("White Point");
    outWhitePoint->setDefault(1.0);
    outWhitePoint->setRange(0.0, 1.0);
    outWhitePoint->setDisplayRange(0.0, 1.0);
    outWhitePoint->setHint("Adjust the White Point.");
    outWhitePoint->setParent(outCustom);

    OFX::DoubleParamDescriptor* outGammaSensito = desc.defineDoubleParam(kColorSpaceOutGammaSensito);
    outGammaSensito->setLabel("Gamma Sensito");
    outGammaSensito->setDefault(1.0);
    outGammaSensito->setRange(0.0, std::numeric_limits<double>::max());
    outGammaSensito->setDisplayRange(0.0, 5.0);
    outGammaSensito->setHint("Adjust the Gamma Sensito.");
    outGammaSensito->setParent(outCustom);

    OFX::ChoiceParamDescriptor* outLayout = desc.defineChoiceParam(kColorSpaceLayoutOut);
    outLayout->setLabel("Layout");
    outLayout->setParent(outCustom);

    OFX::ChoiceParamDescriptor* outTempColor = desc.defineChoiceParam(kColorSpaceTempColorOut);
    outTempColor->setLabel("Color Temperature");
    outTempColor->setHint("Select the color temperature.");
    outTempColor->setParent(outCustom);

    OFX::GroupParamDescriptor* outPrimaries = desc.defineGroupParam(kColorSpacePrimariesOut);
    outPrimaries->setLabel("Primaries color");
    outPrimaries->setOpen(false);
    outPrimaries->setParent(outCustom);

    OFX::DoubleParamDescriptor* outXr = desc.defineDoubleParam(kColorSpaceXrOut);
    outXr->setLabel("X red");
    outXr->setDefault(1.0);
    outXr->setRange(0.0, 1.0);
    outXr->setDisplayRange(0.0, 1.0);
    outXr->setHint("Adjust the X red primary color.");
    outXr->setParent(outPrimaries);

    OFX::DoubleParamDescriptor* outYr = desc.defineDoubleParam(kColorSpaceYrOut);
    outYr->setLabel("Y red");
    outYr->setDefault(1.0);
    outYr->setRange(0.0, 1.0);
    outYr->setDisplayRange(0.0, 1.0);
    outYr->setHint("Adjust the Y red primary color.");
    outYr->setParent(outPrimaries);

    OFX::DoubleParamDescriptor* outXg = desc.defineDoubleParam(kColorSpaceXgOut);
    outXg->setLabel("X green");
    outXg->setDefault(1.0);
    outXg->setRange(0.0, 1.0);
    outXg->setDisplayRange(0.0, 1.0);
    outXg->setHint("Adjust the X green primary color.");
    outXg->setParent(outPrimaries);

    OFX::DoubleParamDescriptor* outYg = desc.defineDoubleParam(kColorSpaceYgOut);
    outYg->setLabel("Y green");
    outYg->setDefault(1.0);
    outYg->setRange(0.0, 1.0);
    outYg->setDisplayRange(0.0, 1.0);
    outYg->setHint("Adjust the Y green primary color.");
    outYg->setParent(outPrimaries);

    OFX::DoubleParamDescriptor* outXb = desc.defineDoubleParam(kColorSpaceXbOut);
    outXb->setLabel("X blue");
    outXb->setDefault(1.0);
    outXb->setRange(0.0, 1.0);
    outXb->setDisplayRange(0.0, 1.0);
    outXb->setHint("Adjust the X blue primary color.");
    outXb->setParent(outPrimaries);

    OFX::DoubleParamDescriptor* outYb = desc.defineDoubleParam(kColorSpaceYbOut);
    outYb->setLabel("Y blue");
    outYb->setDefault(1.0);
    outYb->setRange(0.0, 1.0);
    outYb->setDisplayRange(0.0, 1.0);
    outYb->setHint("Adjust the Y blue primary color.");
    outYb->setParent(outPrimaries);

    /* -------------- ENUMS FILLING ----------------*/

    ttlc::ColorSpaceMaps csMaps;
    ttlc::ColorSpaceMap mapReferenceSpace = csMaps.getMapReferenceSpaces();
    ttlc::ColorSpaceMap mapGradationLaw = csMaps.getMapGradationLaw();
    ttlc::ColorSpaceMap mapLayout = csMaps.getMapLayout();
    ttlc::ColorSpaceMap mapColourTemp = csMaps.getMapColourTemp();
    ttlc::ColorSpaceMap::iterator it;
    ttlc::ColorSpacePair highest;

    /* Reference Space */
    highest = *mapReferenceSpace.rbegin(); // last element
    it = mapReferenceSpace.begin();
    do
    {
        inReferenceSpace->appendOption((*it).second);
        outReferenceSpace->appendOption((*it).second);

    } while(mapReferenceSpace.value_comp()(*it++, highest));

    it = mapReferenceSpace.begin();
    inReferenceSpace->setDefault((*it).first);
    outReferenceSpace->setDefault((*it).first);

    /* Gradation */
    highest = *mapGradationLaw.rbegin();
    it = mapGradationLaw.begin();
    do
    {
        inGradationLaw->appendOption((*it).second);
        outGradationLaw->appendOption((*it).second);

    } while(mapGradationLaw.value_comp()(*it++, highest));

    it = mapGradationLaw.begin();
    inGradationLaw->setDefault((*it).first);
    outGradationLaw->setDefault((*it).first);

    /* Layout */
    highest = *mapLayout.rbegin();
    it = mapLayout.begin();
    do
    {
        inLayout->appendOption((*it).second);
        outLayout->appendOption((*it).second);

    } while(mapLayout.value_comp()(*it++, highest));

    it = mapLayout.begin();
    inLayout->setDefault((*it).first);
    outLayout->setDefault((*it).first);

    /* Colour temperature */
    highest = *mapColourTemp.rbegin();
    it = mapColourTemp.begin();
    do
    {
        inTempColor->appendOption((*it).second);
        outTempColor->appendOption((*it).second);

    } while(mapColourTemp.value_comp()(*it++, highest));

    it = mapColourTemp.begin();
    inTempColor->setDefault((*it).first);
    outTempColor->setDefault((*it).first);
}
/**
 * @brief Function called to describe the plugin controls and features.
 * @param[in, out]   desc       Effect descriptor
 * @param[in]        context    Application context
 */
void HistogramPluginFactory::describeInContext( OFX::ImageEffectDescriptor& desc,OFX::EContext context )
{
	
	OFX::ClipDescriptor* srcClip = desc.defineClip( kOfxImageEffectSimpleSourceClipName );
	srcClip->addSupportedComponent( OFX::ePixelComponentRGBA );
	srcClip->addSupportedComponent( OFX::ePixelComponentRGB );
	srcClip->addSupportedComponent( OFX::ePixelComponentAlpha );
	srcClip->setSupportsTiles( kSupportTiles );

	OFX::ClipDescriptor* dstClip = desc.defineClip( kOfxImageEffectOutputClipName );
	dstClip->addSupportedComponent( OFX::ePixelComponentRGBA );
	dstClip->addSupportedComponent( OFX::ePixelComponentRGB );
	dstClip->addSupportedComponent( OFX::ePixelComponentAlpha );
	dstClip->setSupportsTiles( kSupportTiles );

	//global display
	OFX::BooleanParamDescriptor* boolGLOBAL = desc.defineBooleanParam(kGlobalDisplay);
	boolGLOBAL->setHint("Display global overlay on screen.");
	boolGLOBAL->setDefault(true);
	
    // RGB / HSL
	{
		//Group Param (RGB & HSL)
		OFX::GroupParamDescriptor *groupRGB = desc.defineGroupParam(kGroupRGB);
		groupRGB->setLabel(kGroupRGBLabel);
		OFX::GroupParamDescriptor *groupHSL = desc.defineGroupParam(kGroupHSL);
		groupHSL->setLabel(kGroupHSLLabel);

		//Channels checkboxes (RGB)
		OFX::BooleanParamDescriptor* boolR = desc.defineBooleanParam(kBoolRed);
		boolR->setDefault(true);							//red channel is not selected by default
		boolR->setHint("Activate Red channel");
		boolR->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolR->setParent(groupRGB);
		//red multiplier
		OFX::DoubleParamDescriptor* redMultiplier = desc.defineDoubleParam(kMultiplierRed);
		redMultiplier->setLabel(kMultiplierLabel);
		redMultiplier->setHint("Determinate curve from selection precision.");
		redMultiplier->setRange(1, 1000);
		redMultiplier->setDisplayRange(0,5);
		redMultiplier->setDefault(1);
		redMultiplier->setParent(groupRGB);
		
		OFX::BooleanParamDescriptor* boolG = desc.defineBooleanParam(kBoolGreen);
		boolG->setDefault(true);						//green channel is not selected by default
		boolG->setHint("Activate Green channel");
		boolG->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolG->setParent(groupRGB);
		//green multiplier
		OFX::DoubleParamDescriptor* greenMultiplier = desc.defineDoubleParam(kMultiplierGreen);
		greenMultiplier->setLabel(kMultiplierLabel);
		greenMultiplier->setHint("Determinate curve from selection precision.");
		greenMultiplier->setRange(1, 1000);
		greenMultiplier->setDisplayRange(0,5);
		greenMultiplier->setDefault(1);
		greenMultiplier->setParent(groupRGB);
		
		OFX::BooleanParamDescriptor* boolB = desc.defineBooleanParam(kBoolBlue);
		boolB->setHint("Activate Blue channel");
		boolB->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolB->setDefault(true);						   //blue channel is not selected by default
		boolB->setParent(groupRGB);
		//blue multiplier
		OFX::DoubleParamDescriptor* blueMultiplier = desc.defineDoubleParam(kMultiplierBlue);
		blueMultiplier->setLabel(kMultiplierLabel);
		blueMultiplier->setHint("Determinate curve from selection precision.");
		blueMultiplier->setRange(1, 1000);
		blueMultiplier->setDisplayRange(0,5);
		blueMultiplier->setDefault(1);
		blueMultiplier->setParent(groupRGB);
		
		//Channels check box (HSL)
		OFX::BooleanParamDescriptor* boolH = desc.defineBooleanParam(kBoolHue);
		boolH->setDefault(true);
		boolH->setHint("Activate Hue channel");
		boolH->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolH->setParent(groupHSL);
		//Hue multiplier
		OFX::DoubleParamDescriptor* hueMultiplier = desc.defineDoubleParam(kMultiplierHue);
		hueMultiplier->setLabel(kMultiplierLabel);
		hueMultiplier->setHint("Determinate curve from selection precision.");
		hueMultiplier->setRange(1, 1000);
		hueMultiplier->setDisplayRange(0,5);
		hueMultiplier->setDefault(1);
		hueMultiplier->setParent(groupHSL);
		
		OFX::BooleanParamDescriptor* boolS = desc.defineBooleanParam(kBoolSaturation);
		boolS->setDefault(true);
		boolS->setHint("Activate Saturation channel");
		boolS->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolS->setParent(groupHSL);
		//Saturation multiplier
		OFX::DoubleParamDescriptor* saturationMultiplier = desc.defineDoubleParam(kMultiplierSaturation);
		saturationMultiplier->setLabel(kMultiplierLabel);
		saturationMultiplier->setHint("Determinate curve from selection precision.");
		saturationMultiplier->setRange(1, 1000);
		saturationMultiplier->setDisplayRange(0,5);
		saturationMultiplier->setDefault(1);
		saturationMultiplier->setParent(groupHSL);
		
		OFX::BooleanParamDescriptor* boolL = desc.defineBooleanParam(kBoolLightness);
		boolL->setHint("Activate Lightness channel");
		boolL->setLayoutHint( OFX::eLayoutHintNoNewLine ); //line is not finished
		boolL->setDefault(true);
		boolL->setParent(groupHSL);
		//Lightness multiplier
		OFX::DoubleParamDescriptor* lightnessMultiplier = desc.defineDoubleParam(kMultiplierLightness);
		lightnessMultiplier->setLabel(kMultiplierLabel);
		lightnessMultiplier->setHint("Determinate curve from selection precision.");
		lightnessMultiplier->setRange(1, 1000);
		lightnessMultiplier->setDisplayRange(0,5);
		lightnessMultiplier->setDefault(1);
		lightnessMultiplier->setParent(groupHSL);
		
		//Close RGB group (group states by default on screen)
		groupRGB->setOpen(true);
		groupHSL->setOpen(true);
	}
	
	//Histogram overlay group
	{
		OFX::GroupParamDescriptor *groupHistogramOverlay = desc.defineGroupParam(kGroupHistogramOverlay);
		groupHistogramOverlay->setLabel(kGroupHistogramOverlayLabel);
		groupHistogramOverlay->setOpen(true);
//		groupHistogramOverlay->setAsTab();

		//Histogram display settings
		OFX::ChoiceParamDescriptor* gammaType = desc.defineChoiceParam(kHistoDisplayListParamLabel);
		gammaType->setLabel(kHistoDisplayListParamLabel);
		gammaType->setEvaluateOnChange(false); // don't need to recompute on change
		gammaType->setHint("Histogram display \n -global : normalize all of channels \n -by channel : keep proportions between channels");
		gammaType->appendOption(kHistoDisplayListParamOpt2);
		gammaType->appendOption(kHistoDisplayListParamOpt1);
		gammaType->setParent(groupHistogramOverlay);	

		//nbOfstep (advanced group)
		OFX::IntParamDescriptor* nbStepRange = desc.defineIntParam(knbStepRange);
		nbStepRange->setLabel(knbStepRangeLabel);
		nbStepRange->setHint("Determinate histogram overlay precision.");
		nbStepRange->setRange(1, 1000);
		nbStepRange->setDisplayRange(1, 600.0 );
		nbStepRange->setDefault(255);
		nbStepRange->setEvaluateOnChange(false); // don't need to recompute on change
		nbStepRange->setParent(groupHistogramOverlay);

		//selection multiplier (advanced group)
		OFX::DoubleParamDescriptor* selectionMultiplier = desc.defineDoubleParam(kselectionMultiplier);
		selectionMultiplier->setLabel(kselectionMultiplierLabel);
		selectionMultiplier->setHint("With high values, small selection are more visible.");
		selectionMultiplier->setRange(0.001,1000.0);
		selectionMultiplier->setDisplayRange(0.0, 100.0 );
		selectionMultiplier->setDefault(2.0);
		selectionMultiplier->setEvaluateOnChange(false); // don't need to recompute on change
		selectionMultiplier->setParent(groupHistogramOverlay);

		//Refresh histograms overlay Button
		OFX::PushButtonParamDescriptor* refreshOverlayButton = desc.definePushButtonParam(kButtonRefreshOverlay);
		refreshOverlayButton->setLabel(kButtonRefreshOverlayLabel);
		refreshOverlayButton->setHint("Refresh histogram overlay.");
		refreshOverlayButton->setParent(groupHistogramOverlay);
	}
	
	//Selection group
	{
		OFX::GroupParamDescriptor *groupSelection = desc.defineGroupParam(kGroupSelection);
		groupSelection->setLabel(kGroupSelectionLabel);
		groupSelection->setOpen(false);
//		groupSelection->setAsTab();
		//display selection
		OFX::BooleanParamDescriptor* boolDisplaySelection = desc.defineBooleanParam(kBoolSelection);
		boolDisplaySelection->setDefault(true);
		boolDisplaySelection->setEvaluateOnChange(false);// don't need to recompute on change
		boolDisplaySelection->setHint("Display the selected zone on screen.");
		boolDisplaySelection->setParent(groupSelection);
		//clear selection
		OFX::PushButtonParamDescriptor* resetSelectionButton = desc.definePushButtonParam(kButtonResetSelection);
		resetSelectionButton->setLabel(kButtonResetSelectionLabel);
		resetSelectionButton->setHint("Reset user's selection.");
		resetSelectionButton->setParent(groupSelection);
		//selection mode
		OFX::ChoiceParamDescriptor* selectionMode = desc.defineChoiceParam(kSelectionModeListParamLabel);
		selectionMode->setLabel(kSelectionModeListParamLabel);
		selectionMode->setHint( "Selection mode \n - unique : reset past selection before selection \n - additive : add pixels to current selection \n -subtractive : remote pixel from current selection");
		selectionMode->appendOption(kSelectionModeListParamOpt2);
		selectionMode->appendOption(kSelectionModeListParamOpt1);
		selectionMode->appendOption(kSelectionModeListParamOpt3);
		selectionMode->setParent(groupSelection);
	}
}