KisCachedGradientShapeStrategy Class Reference

#include <kis_cached_gradient_shape_strategy.h>

Inheritance diagram for KisCachedGradientShapeStrategy:

Public Member Functions
	KisCachedGradientShapeStrategy (const QRect &rc, qreal xStep, qreal yStep, KisGradientShapeStrategy *baseStrategy)
double	valueAt (double x, double y) const override
	~KisCachedGradientShapeStrategy () override
Public Member Functions inherited from Private
	Private (KisCanvas2 *c)
Public Member Functions inherited from KisGradientShapeStrategy
	KisGradientShapeStrategy ()
	KisGradientShapeStrategy (const QPointF &gradientVectorStart, const QPointF &gradientVectorEnd)
virtual	~KisGradientShapeStrategy ()

Public Attributes
QScopedPointer< KisGradientShapeStrategy >	baseStrategy
QRect	rc
QScopedPointer< KisBSpline2D >	spline
qreal	xStep
qreal	yStep
Public Attributes inherited from Private
KisCanvas2 *	canvas
int	displayedFrame
int	intendedFrame

Private Attributes
const QScopedPointer< Private >	m_d

Additional Inherited Members
Protected Attributes inherited from KisGradientShapeStrategy
QPointF	m_gradientVectorEnd
QPointF	m_gradientVectorStart

Detailed Description

Definition at line 22 of file kis_cached_gradient_shape_strategy.cpp.

Constructor & Destructor Documentation

KisCachedGradientShapeStrategy()

KisCachedGradientShapeStrategy::KisCachedGradientShapeStrategy	(	const QRect &	rc,
		qreal	xStep,
		qreal	yStep,
		KisGradientShapeStrategy *	baseStrategy )

Definition at line 31 of file kis_cached_gradient_shape_strategy.cpp.

    : KisGradientShapeStrategy(),
      m_d(new Private())
{
    using namespace std::placeholders;  // for _1, _2, _3...
 
    KIS_ASSERT_RECOVER_NOOP(rc.width() >= 3 && rc.height() >= 3);
 
    m_d->rc = rc;
    m_d->xStep = xStep;
    m_d->yStep = yStep;
    m_d->baseStrategy.reset(baseStrategy);
 
    qreal xStart = rc.x();
    qreal yStart = rc.y();
    qreal xEnd = rc.x() + rc.width();
    qreal yEnd = rc.y() + rc.height();
 
    int numSamplesX = std::ceil(qreal(rc.width()) / xStep);
    int numSamplesY = std::ceil(qreal(rc.height()) / yStep);
 
    if (numSamplesX < 2 || numSamplesY < 2) {
        warnKrita;
        warnKrita << "############";
        warnKrita << "WARNING: KisCachedGradientShapeStrategy numSamplesX/Y is too small!"  << ppVar(numSamplesX) << ppVar(numSamplesY);
        warnKrita << "WARNING:" << ppVar(rc) << ppVar(xStep) << ppVar(yStep);
        warnKrita << "WARNING:" << ppVar(numSamplesX) << ppVar(numSamplesY);
 
        numSamplesX = qMax(numSamplesX, 2);
        numSamplesY = qMax(numSamplesY, 2);
 
        warnKrita << "WARNING: adjusting:" << ppVar(numSamplesX) << ppVar(numSamplesY);
        warnKrita << "############";
        warnKrita;
    }
 
    m_d->spline.reset(new KisBSpline2D(xStart, xEnd, numSamplesX, Natural,
                                       yStart, yEnd, numSamplesY, Natural));
 
 
    std::function<qreal(qreal, qreal)> valueOp =
        std::bind(&KisGradientShapeStrategy::valueAt, m_d->baseStrategy.data(), _1, _2);
 
    m_d->spline->initializeSpline(valueOp);
 
}

References baseStrategy, KIS_ASSERT_RECOVER_NOOP, m_d, KisBSplines::Natural, ppVar, rc, KisGradientShapeStrategy::valueAt(), warnKrita, xStep, and yStep.

~KisCachedGradientShapeStrategy()

KisCachedGradientShapeStrategy::~KisCachedGradientShapeStrategy ( )

override

Definition at line 81 of file kis_cached_gradient_shape_strategy.cpp.

{
}

Member Function Documentation

valueAt()

double KisCachedGradientShapeStrategy::valueAt ( double x, double y ) const

overridevirtual

Implements KisGradientShapeStrategy.

Definition at line 85 of file kis_cached_gradient_shape_strategy.cpp.

{
    QPointF pt = KisAlgebra2D::ensureInRect(QPointF(x, y), m_d->rc);
    return m_d->spline->value(pt.x(), pt.y());
}

References KisAlgebra2D::ensureInRect(), and m_d.

Member Data Documentation

baseStrategy

QScopedPointer<KisGradientShapeStrategy> KisCachedGradientShapeStrategy::baseStrategy

Definition at line 27 of file kis_cached_gradient_shape_strategy.cpp.

m_d

const QScopedPointer<Private> KisCachedGradientShapeStrategy::m_d

private

Definition at line 28 of file kis_cached_gradient_shape_strategy.h.

rc

QRect KisCachedGradientShapeStrategy::rc

Definition at line 24 of file kis_cached_gradient_shape_strategy.cpp.

spline

QScopedPointer<KisBSpline2D> KisCachedGradientShapeStrategy::spline

Definition at line 28 of file kis_cached_gradient_shape_strategy.cpp.

xStep

qreal KisCachedGradientShapeStrategy::xStep

Definition at line 25 of file kis_cached_gradient_shape_strategy.cpp.

yStep

qreal KisCachedGradientShapeStrategy::yStep

Definition at line 26 of file kis_cached_gradient_shape_strategy.cpp.

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

• libs/image/kis_cached_gradient_shape_strategy.cpp
• libs/image/kis_cached_gradient_shape_strategy.h