RuleMatchLeafToImageSize.h

// RuleMatchLeafToImageSize.h:
// ----------------------------
//

#ifndef __IPSDKIMAGEPROCESSING_RULEMATCHLEAFTOIMAGESIZE_H__
#define __IPSDKIMAGEPROCESSING_RULEMATCHLEAFTOIMAGESIZE_H__

#include <IPSDKImageProcessing/Rule/Image/ImageBinaryMixed/BaseRuleMatchScalarToImageSize.h>
#include <IPSDKImageProcessing/Attribute/Image/BaseImageAttribute.h>
#include <IPSDKBaseData/DataItem/DataItemTypes.h>

namespace ipsdk {
namespace imaproc {


template <typename AttributeType, typename LeafType>
class RuleMatchLeafToImageSize : public BaseRuleMatchScalarToImageSize
{
// predefined public types
public:
    typedef AttributeType ValueAttributeType;

    typedef typename boost::enable_if<typename boost::is_same<boost::mpl::int_<AttributeType::g_attributeType>,
                                                              boost::mpl::int_<processor::eAttributeType::eAT_DataItem> >::type,
                                      typename AttributeType::ValueType>::type DataItemType;

    typedef typename boost::enable_if<typename boost::is_same<boost::mpl::int_<LeafType::g_itemType>,
                                                              boost::mpl::int_<eDataItemType::eDIT_Leaf> >::type,
                                      typename LeafType::ValueType>::type ValueType;

public:
    RuleMatchLeafToImageSize() {}
    ~RuleMatchLeafToImageSize() {}

// methods
public:
    void                    init(const eMatchImageSizeType& matchImageSizeType,
                                 const eMatchImageSizeScale& matchImageSizeScale,
                                 const ImageAttributeConstWeakPtr& pImageAttribute,
                                 const boost::weak_ptr<const AttributeType>& pValueAttribute);

protected:
    ipReal64                retrieveValue() const;

    std::string             retrieveValueAttributeName() const;

// attributes
protected:

};


template <typename AttributeType, typename LeafType>
inline void
RuleMatchLeafToImageSize<AttributeType, LeafType>::init(const eMatchImageSizeType& matchImageSizeType,
                                                        const eMatchImageSizeScale& matchImageSizeScale,
                                                        const ImageAttributeConstWeakPtr& pImageAttribute,
                                                        const boost::weak_ptr<const AttributeType>& pValueAttribute)
{
    // store dimensions considered in the size check in the image
    _matchImageSizeType = matchImageSizeType;

    // store image size scale
    _matchImageSizeScale = matchImageSizeScale;

    // call of base class initialization method
    BaseRuleMatchScalarToImageSize::initBase(pImageAttribute, pValueAttribute);
}

template <typename AttributeType, typename LeafType>
inline ipReal64
RuleMatchLeafToImageSize<AttributeType, LeafType>::retrieveValue() const
{
    // retrieve associated attribute
    const AttributeType& valueAttribute = static_cast<const AttributeType&>(getAttribute2());

    return static_cast<ipReal64>(valueAttribute.getNode().template getValue<LeafType>());
}

template <typename AttributeType, typename LeafType>
inline std::string
RuleMatchLeafToImageSize<AttributeType, LeafType>::retrieveValueAttributeName() const
{
    return ValueAttributeType::getObjectNameStr() + "::" +
           DataItemType::template getNodeNameStr<LeafType>();
}


} // end of namespace imaproc
} // end of namespace ipsdk

#endif // __IPSDKIMAGEPROCESSING_RULEMATCHLEAFTOIMAGESIZE_H__