KisSharpnessOption Class Reference

#include <KisSharpnessOption.h>

Inheritance diagram for KisSharpnessOption:

Public Member Functions
bool	alignOutlineToPixels () const
void	apply (const KisPaintInformation &info, const QPointF &pt, qint32 &x, qint32 &y, qreal &xFraction, qreal &yFraction) const
void	applyThreshold (KisFixedPaintDeviceSP dab, const KisPaintInformation &info)
	KisSharpnessOption (const KisPropertiesConfiguration *setting)
Public Member Functions inherited from KisCurveOption
qreal	computeRotationLikeValue (const KisPaintInformation &info, qreal baseValue, bool absoluteAxesFlipped, qreal scalingPartCoeff, bool disableScalingPart) const
qreal	computeSizeLikeValue (const KisPaintInformation &info, bool useStrengthValue=true) const
ValueComponents	computeValueComponents (const KisPaintInformation &info, bool useStrengthValue) const
bool	isChecked () const
bool	isRandom () const
	KisCurveOption (const KisCurveOptionData &data)
	KisCurveOption (KisCurveOption &)=delete
KisCurveOption &	operator= (KisCurveOption &)=delete
qreal	strengthMaxValue () const
qreal	strengthMinValue () const
qreal	strengthValue () const

Private Member Functions
	KisSharpnessOption (const KisSharpnessOptionData &data)

Private Attributes
bool	m_alignOutlinePixels
int	m_softness

Detailed Description

Definition at line 13 of file KisSharpnessOption.h.

Constructor & Destructor Documentation

KisSharpnessOption() [1/2]

KisSharpnessOption::KisSharpnessOption

(

const KisPropertiesConfiguration *

setting

)

Definition at line 19 of file KisSharpnessOption.cpp.

    : KisSharpnessOption(kpou::loadOptionData<KisSharpnessOptionData>(setting))
{
}

KisSharpnessOption() [2/2]

KisSharpnessOption::KisSharpnessOption ( const KisSharpnessOptionData & data )

private

Definition at line 24 of file KisSharpnessOption.cpp.

    : KisCurveOption(data)
    , m_alignOutlinePixels(data.alignOutlinePixels)
    , m_softness(data.softness)
{
 
}

Member Function Documentation

alignOutlineToPixels()

bool KisSharpnessOption::alignOutlineToPixels

(

)

const

Definition at line 95 of file KisSharpnessOption.cpp.

{
    return m_alignOutlinePixels;
}

References m_alignOutlinePixels.

apply()

void KisSharpnessOption::apply	(	const KisPaintInformation &	info,
		const QPointF &	pt,
		qint32 &	x,
		qint32 &	y,
		qreal &	xFraction,
		qreal &	yFraction ) const

First part of the sharpness is the coordinates: in pen mode they are integers without fractions

Definition at line 32 of file KisSharpnessOption.cpp.

{
    if (isChecked() && m_alignOutlinePixels && strengthValue() > 0.0) {
        qreal processedSharpness = computeSizeLikeValue(info);
 
        if (qFuzzyCompare(processedSharpness, 1.0)) {
            // pen
            xFraction = 0.0;
            yFraction = 0.0;
            x = qRound(pt.x());
            y = qRound(pt.y());
        }
        else {
            // something in between
            qint32 xi = qRound(pt.x());
            qint32 yi = qRound(pt.y());
 
            qreal xf = processedSharpness * xi + (1.0 - processedSharpness) * pt.x();
            qreal yf = processedSharpness * yi + (1.0 - processedSharpness) * pt.y();
 
            KisPaintOp::splitCoordinate(xf, &x, &xFraction);
            KisPaintOp::splitCoordinate(yf, &y, &yFraction);
        }
    } else {
        // brush
        KisPaintOp::splitCoordinate(pt.x(), &x, &xFraction);
        KisPaintOp::splitCoordinate(pt.y(), &y, &yFraction);
    }
}

References KisCurveOption::computeSizeLikeValue(), KisCurveOption::isChecked(), m_alignOutlinePixels, qFuzzyCompare(), KisPaintOp::splitCoordinate(), and KisCurveOption::strengthValue().

applyThreshold()

void KisSharpnessOption::applyThreshold	(	KisFixedPaintDeviceSP	dab,
		const KisPaintInformation &	info )

Apply threshold specified by user

Definition at line 62 of file KisSharpnessOption.cpp.

{
    if (!isChecked()) return;
    const KoColorSpace * cs = dab->colorSpace();
 
    // Set all alpha > opaque/2 to opaque, the rest to transparent.
    // XXX: Using 4/10 as the 1x1 circle brush paints nothing with 0.5.
    quint8* dabPointer = dab->data();
    QRect rc = dab->bounds();
 
    qreal threshold = computeSizeLikeValue(info);
 
    quint32 pixelSize = dab->pixelSize();
    int pixelCount = rc.width() * rc.height();
 
    quint32 tolerance = quint32(OPACITY_OPAQUE_U8 - (threshold * OPACITY_OPAQUE_U8));
 
    for (int i = 0; i < pixelCount; i++) {
        quint8 opacity = cs->opacityU8(dabPointer);
 
        // Check what pixel goes sharp
        if (opacity > (tolerance) ) {
            cs->setOpacity(dabPointer, OPACITY_OPAQUE_U8, 1);
        } else {
            // keep original value if in soft range
            if (opacity <= (100 - m_softness) * tolerance / 100) {
                cs->setOpacity(dabPointer, OPACITY_TRANSPARENT_U8, 1);
            }
        }
        dabPointer += pixelSize;
    }
}

References KisFixedPaintDevice::bounds(), KisFixedPaintDevice::colorSpace(), KisCurveOption::computeSizeLikeValue(), KisFixedPaintDevice::data(), KisCurveOption::isChecked(), m_softness, OPACITY_OPAQUE_U8, OPACITY_TRANSPARENT_U8, KoColorSpace::opacityU8(), KisFixedPaintDevice::pixelSize(), and KoColorSpace::setOpacity().

Member Data Documentation

m_alignOutlinePixels

bool KisSharpnessOption::m_alignOutlinePixels

private

Definition at line 33 of file KisSharpnessOption.h.

m_softness

int KisSharpnessOption::m_softness

private

Definition at line 34 of file KisSharpnessOption.h.

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

• plugins/paintops/libpaintop/KisSharpnessOption.h
• plugins/paintops/libpaintop/KisSharpnessOption.cpp