KisLsUtils::Private::JitterGradientIndex Struct Reference

Public Member Functions
	JitterGradientIndex (const QRect &applyRect, int jitter, const KisLayerStyleFilterEnvironment *env)
bool	nextPixel ()
int	popOneIndex (int selectionAlpha)

Private Attributes
int	m_jitterCoeff
KisSequentialConstIterator	noiseIt
KisPixelSelectionSP	randomSelection

Detailed Description

Definition at line 136 of file kis_ls_utils.cpp.

Constructor & Destructor Documentation

JitterGradientIndex()

KisLsUtils::Private::JitterGradientIndex::JitterGradientIndex ( const QRect & applyRect, int jitter, const KisLayerStyleFilterEnvironment * env )

inline

Definition at line 138 of file kis_ls_utils.cpp.

                : randomSelection(env->cachedRandomSelection(applyRect)),
                  noiseIt(randomSelection, applyRect),
                  m_jitterCoeff(jitter * 255 / 100)
                {
                }

Member Function Documentation

nextPixel()

bool KisLsUtils::Private::JitterGradientIndex::nextPixel ( )

inline

Definition at line 155 of file kis_ls_utils.cpp.

                             {
                return noiseIt.nextPixel();
            }

References KisSequentialIteratorBase< IteratorPolicy, SourcePolicy, ProgressPolicy >::nextPixel(), and noiseIt.

popOneIndex()

int KisLsUtils::Private::JitterGradientIndex::popOneIndex ( int selectionAlpha )

inline

Definition at line 147 of file kis_ls_utils.cpp.

                                                {
                int gradientIndex = 255 - selectionAlpha;
                gradientIndex += m_jitterCoeff * *noiseIt.rawDataConst() >> 8;
                gradientIndex &= 0xFF;
 
                return gradientIndex;
            }

References m_jitterCoeff, noiseIt, and KisSequentialIteratorBase< IteratorPolicy, SourcePolicy, ProgressPolicy >::rawDataConst().

Member Data Documentation

m_jitterCoeff

int KisLsUtils::Private::JitterGradientIndex::m_jitterCoeff

private

Definition at line 162 of file kis_ls_utils.cpp.

noiseIt

KisSequentialConstIterator KisLsUtils::Private::JitterGradientIndex::noiseIt

private

Definition at line 161 of file kis_ls_utils.cpp.

randomSelection

KisPixelSelectionSP KisLsUtils::Private::JitterGradientIndex::randomSelection

private

Definition at line 160 of file kis_ls_utils.cpp.

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

• libs/image/layerstyles/kis_ls_utils.cpp