#include <kis_gauss_circle_mask_generator.h>

Inheritance diagram for KisGaussCircleMaskGenerator:

Public Member Functions
KisBrushMaskApplicatorBase *	applicator () const override

KisMaskGenerator *	clone () const override

	KisGaussCircleMaskGenerator (const KisGaussCircleMaskGenerator &rhs)

	KisGaussCircleMaskGenerator (qreal diameter, qreal ratio, qreal fh, qreal fv, int spikes, bool antialiasEdges)

	Private (bool enableAntialiasing)

	Private (const Private &rhs)

void	setMaskScalarApplicator ()

void	setScale (qreal scaleX, qreal scaleY) override

bool	shouldVectorize () const override

quint8	value (qreal dist) const

quint8	valueAt (qreal x, qreal y) const override

	~KisGaussCircleMaskGenerator () override

Public Member Functions inherited from KisMaskGenerator
bool	antialiasEdges () const

QString	curveString () const

qreal	diameter () const

void	fixRotation (qreal &xr, qreal &yr) const

qreal	height () const

qreal	horizontalFade () const

QString	id () const

bool	isEmpty () const

	KisMaskGenerator (const KisMaskGenerator &rhs)

	KisMaskGenerator (qreal radius, qreal ratio, qreal fh, qreal fv, int spikes, bool antialiasEdges, Type type, const KoID &id=DefaultId)

QString	name () const

qreal	ratio () const

void	setCurveString (const QString &curveString)

void	setDiameter (qreal value)

virtual void	setSoftness (qreal softness)

virtual bool	shouldSupersample () const

virtual bool	shouldSupersample6x6 () const

qreal	softness () const

int	spikes () const

virtual void	toXML (QDomDocument &, QDomElement &) const

Type	type () const

qreal	verticalFade () const

qreal	width () const

virtual	~KisMaskGenerator ()

Public Member Functions inherited from KisMaskGenerator::Private
	Private ()

	Private (const Private &rhs)

Public Attributes
qreal	alphafactor {0.0}

QScopedPointer< KisBrushMaskApplicatorBase >	applicator

qreal	center {0.0}

qreal	distfactor {0.0}

qreal	fade {0.0}

KisAntialiasingFadeMaker1D< Private >	fadeMaker

qreal	ycoef {0.0}

Public Attributes inherited from KisMaskGenerator::Private
bool	antialiasEdges

qreal	cachedSpikesAngle

qreal	cs

QString	curveString

qreal	diameter

bool	empty

qreal	fh

qreal	fv

qreal	ratio

qreal	scaleX

qreal	scaleY

qreal	softness

int	spikes

qreal	ss

Type	type

Private Member Functions
qreal	norme (qreal a, qreal b) const

Private Attributes
const QScopedPointer< Private >	d

Friends
struct	FastRowProcessor< KisGaussCircleMaskGenerator >

Additional Inherited Members
Public Types inherited from KisMaskGenerator
enum	Type { CIRCLE , RECTANGLE }

Static Public Member Functions inherited from KisMaskGenerator
static KisMaskGenerator *	fromXML (const QDomElement &)

static QList< KoID >	maskGeneratorIds ()

Protected Member Functions inherited from KisMaskGenerator
qreal	effectiveSrcHeight () const

qreal	effectiveSrcWidth () const

Detailed Description

This mask generator uses a Gaussian-blurred circle

Definition at line 23 of file kis_gauss_circle_mask_generator.h.

Constructor & Destructor Documentation

◆ KisGaussCircleMaskGenerator() [1/2]

KisGaussCircleMaskGenerator::KisGaussCircleMaskGenerator	(	qreal	diameter,
		qreal	ratio,
		qreal	fh,
		qreal	fv,
		int	spikes,
		bool	antialiasEdges )

Definition at line 32 of file kis_gauss_circle_mask_generator.cpp.

    : KisMaskGenerator(diameter, ratio, fh, fv, spikes, antialiasEdges, CIRCLE, GaussId),
      d(new Private(antialiasEdges))
{
    d->ycoef = 1.0 / ratio;
    d->fade = 1.0 - (fh + fv) / 2.0;
 
    if (d->fade == 0.0) d->fade = 1e-6;
    else if (d->fade == 1.0) d->fade = 1.0 - 1e-6; // would become undefined for fade == 0 or 1
 
    d->center = (2.5 * (6761.0*d->fade-10000.0))/(M_SQRT_2*6761.0*d->fade);
    d->alphafactor = 255.0 / (2.0 * erf(d->center));
 
    d->applicator.reset(createOptimizedClass<MaskApplicatorFactory<KisGaussCircleMaskGenerator>>(this));
 
}

References createOptimizedClass(), d, KisMaskGenerator::Private::fh, KisMaskGenerator::Private::fv, M_SQRT_2, and KisMaskGenerator::Private::ratio.

◆ KisGaussCircleMaskGenerator() [2/2]

KisGaussCircleMaskGenerator::KisGaussCircleMaskGenerator ( const KisGaussCircleMaskGenerator & rhs )

Definition at line 49 of file kis_gauss_circle_mask_generator.cpp.

    : KisMaskGenerator(rhs),
      d(new Private(*rhs.d))
{
    d->applicator.reset(createOptimizedClass<MaskApplicatorFactory<KisGaussCircleMaskGenerator>>(this));
}

References createOptimizedClass(), and d.

◆ ~KisGaussCircleMaskGenerator()

KisGaussCircleMaskGenerator::~KisGaussCircleMaskGenerator ( )

override

Definition at line 70 of file kis_gauss_circle_mask_generator.cpp.

71{

72}

Member Function Documentation

◆ applicator()

KisBrushMaskApplicatorBase * KisGaussCircleMaskGenerator::applicator ( ) const

overridevirtual

Implements KisMaskGenerator.

◆ clone()

KisMaskGenerator * KisGaussCircleMaskGenerator::clone ( ) const

overridevirtual

Implements KisMaskGenerator.

Definition at line 56 of file kis_gauss_circle_mask_generator.cpp.

{
    return new KisGaussCircleMaskGenerator(*this);
}

References KisGaussCircleMaskGenerator().

◆ norme()

qreal KisGaussCircleMaskGenerator::norme	(	qreal	a,
		qreal	b ) const

inlineprivate

Definition at line 42 of file kis_gauss_circle_mask_generator.h.

                                        {
        return a*a + b*b;
    }

◆ Private() [1/2]

KisGaussCircleMaskGenerator::Private ( bool enableAntialiasing )

inline

Definition at line 15 of file kis_gauss_circle_mask_generator_p.h.

        : fadeMaker(*this, enableAntialiasing)
    {
    }

◆ Private() [2/2]

KisGaussCircleMaskGenerator::Private ( const Private & rhs )

inline

Definition at line 20 of file kis_gauss_circle_mask_generator_p.h.

        : ycoef(rhs.ycoef),
        fade(rhs.fade),
        center(rhs.center),
        distfactor(rhs.distfactor),
        alphafactor(rhs.alphafactor),
        fadeMaker(rhs.fadeMaker, *this)
    {
    }

◆ setMaskScalarApplicator()

void KisGaussCircleMaskGenerator::setMaskScalarApplicator ( )

Definition at line 108 of file kis_gauss_circle_mask_generator.cpp.

{
    d->applicator.reset(
        createScalarClass<MaskApplicatorFactory<KisGaussCircleMaskGenerator>>(
            this));
}

References createScalarClass(), and KisMaskGenerator::d.

◆ setScale()

void KisGaussCircleMaskGenerator::setScale	(	qreal	scaleX,
		qreal	scaleY )

overridevirtual

Reimplemented from KisMaskGenerator.

Definition at line 61 of file kis_gauss_circle_mask_generator.cpp.

{
    KisMaskGenerator::setScale(scaleX, scaleY);
    d->ycoef = scaleX / (scaleY * ratio());
 
    d->distfactor = M_SQRT_2 * 12500.0 / (6761.0 * d->fade * effectiveSrcWidth() / 2.0);
    d->fadeMaker.setRadius(0.5 * effectiveSrcWidth());
}

References d, KisMaskGenerator::effectiveSrcWidth(), M_SQRT_2, KisMaskGenerator::Private::ratio, KisMaskGenerator::Private::scaleX, KisMaskGenerator::Private::scaleY, and KisMaskGenerator::setScale().

◆ shouldVectorize()

bool KisGaussCircleMaskGenerator::shouldVectorize ( ) const

overridevirtual

Reimplemented from KisMaskGenerator.

Definition at line 81 of file kis_gauss_circle_mask_generator.cpp.

{
    return !shouldSupersample() && spikes() == 2;
}

References KisMaskGenerator::shouldSupersample(), and KisMaskGenerator::spikes().

◆ value()

quint8 KisGaussCircleMaskGenerator::value ( qreal dist ) const

inline

◆ valueAt()

quint8 KisGaussCircleMaskGenerator::valueAt	(	qreal	x,
		qreal	y ) const

overridevirtual

Returns: the alpha value at the position (x,y)

Implements KisMaskGenerator.

Definition at line 91 of file kis_gauss_circle_mask_generator.cpp.

{
    if (isEmpty()) return 255;
    qreal xr = x;
    qreal yr = qAbs(y);
    fixRotation(xr, yr);
 
    qreal dist = sqrt(norme(xr, yr * d->ycoef));
 
    quint8 value;
    if (d->fadeMaker.needFade(dist, &value)) {
        return value;
    }
 
    return d->value(dist);
}