KisColorSelectionPolicies::SlowColorOrTransparentDifferencePolicy Class Reference

#include <KisColorSelectionPolicies.h>

Inheritance diagram for KisColorSelectionPolicies::SlowColorOrTransparentDifferencePolicy:

Public Member Functions
ALWAYS_INLINE quint8	difference (const quint8 *colorPtr) const
	SlowColorOrTransparentDifferencePolicy (const KoColor &referenceColor, int threshold)
Public Member Functions inherited from KisColorSelectionPolicies::SlowDifferencePolicy
ALWAYS_INLINE quint8	difference (const quint8 *colorPtr) const
	SlowDifferencePolicy (const KoColor &referenceColor, int threshold)

Additional Inherited Members
Protected Attributes inherited from KisColorSelectionPolicies::SlowDifferencePolicy
const KoColorSpace *	m_colorSpace
KoColor	m_referenceColor
const bool	m_referenceColorIsTransparent
const quint8 *	m_referenceColorPtr
int	m_threshold

Detailed Description

Definition at line 87 of file KisColorSelectionPolicies.h.

Constructor & Destructor Documentation

SlowColorOrTransparentDifferencePolicy()

KisColorSelectionPolicies::SlowColorOrTransparentDifferencePolicy::SlowColorOrTransparentDifferencePolicy ( const KoColor & referenceColor, int threshold )

inline

Definition at line 90 of file KisColorSelectionPolicies.h.

        : SlowDifferencePolicy(referenceColor, threshold)
    {}

Member Function Documentation

difference()

ALWAYS_INLINE quint8 KisColorSelectionPolicies::SlowColorOrTransparentDifferencePolicy::difference ( const quint8 * colorPtr ) const

inline

Definition at line 94 of file KisColorSelectionPolicies.h.

    {
        if (m_threshold == 1) {
            if (memcmp(m_referenceColorPtr, colorPtr, m_colorSpace->pixelSize()) == 0 ||
                m_colorSpace->opacityU8(colorPtr) == 0) {
                return 0;
            }
            return quint8_MAX;
        }
        else {
            const quint8 colorDifference = m_colorSpace->difference(m_referenceColorPtr, colorPtr);
            const quint8 opacityDifference = m_colorSpace->opacityU8(colorPtr) * 100 / quint8_MAX;
            return qMin(colorDifference, opacityDifference);
        }
    }

References KoColorSpace::difference(), KisColorSelectionPolicies::SlowDifferencePolicy::m_colorSpace, KisColorSelectionPolicies::SlowDifferencePolicy::m_referenceColorPtr, KisColorSelectionPolicies::SlowDifferencePolicy::m_threshold, KoColorSpace::opacityU8(), KoColorSpace::pixelSize(), and quint8_MAX.

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The documentation for this class was generated from the following file:

• libs/image/KisColorSelectionPolicies.h