KisBoxFilterStrategy Class Reference

#include <kis_filter_strategy.h>

Inheritance diagram for KisBoxFilterStrategy:

Public Member Functions
QString	description () override
virtual qint32	intSupport (qreal weightsPositionScale) override
qint32	intValueAt (qint32 t, qreal weightsPositionScale) const override
	KisBoxFilterStrategy ()
virtual qreal	support (qreal weightsPositionScale) override
qreal	valueAt (qreal t, qreal weightsPositionScale) const override
	~KisBoxFilterStrategy () override
Public Member Functions inherited from KisFilterStrategy
QString	id ()
	KisFilterStrategy (KoID id)
QString	name ()
virtual	~KisFilterStrategy ()

Additional Inherited Members
Protected Attributes inherited from KisFilterStrategy
qint32	intSupportVal {0}
KoID	m_id
qreal	supportVal {0.0}

Detailed Description

Definition at line 83 of file kis_filter_strategy.h.

Constructor & Destructor Documentation

KisBoxFilterStrategy()

KisBoxFilterStrategy::KisBoxFilterStrategy ( )

inline

Definition at line 86 of file kis_filter_strategy.h.

                           : KisFilterStrategy(KoID("NearestNeighbor", i18n("Nearest Neighbor"))) {
        // 0.5 and 128, but with a bit of margin to ensure the correct pixel will be used
        // even in case of calculation errors
        supportVal = 0.51; intSupportVal = 129;
    }

~KisBoxFilterStrategy()

KisBoxFilterStrategy::~KisBoxFilterStrategy ( )

inlineoverride

Definition at line 91 of file kis_filter_strategy.h.

{}

Member Function Documentation

description()

QString KisBoxFilterStrategy::description ( )

inlineoverridevirtual

Reimplemented from KisFilterStrategy.

Definition at line 93 of file kis_filter_strategy.h.

                                   {
        return i18n("Replicate pixels in the image. Preserves all the original detail, but can produce jagged effects.");
    }

intSupport()

qint32 KisBoxFilterStrategy::intSupport ( qreal weightsPositionScale )

overridevirtual

Reimplemented from KisFilterStrategy.

Definition at line 101 of file kis_filter_strategy.cc.

{
    return qCeil(intSupportVal*weightsPositionScale);
}

References KisFilterStrategy::intSupportVal.

intValueAt()

qint32 KisBoxFilterStrategy::intValueAt ( qint32 t, qreal weightsPositionScale ) const

overridevirtual

Reimplemented from KisFilterStrategy.

Definition at line 87 of file kis_filter_strategy.cc.

{
    /* f(t) = 1, -0.5 < t <= 0.5 */
    if ((t >= -128  * weightsPositionScale) && (t < 128 * weightsPositionScale))
        return 255;
    return 0;
}

support()

qreal KisBoxFilterStrategy::support ( qreal weightsPositionScale )

overridevirtual

Reimplemented from KisFilterStrategy.

Definition at line 96 of file kis_filter_strategy.cc.

{
    return supportVal*weightsPositionScale;
}

References KisFilterStrategy::supportVal.

valueAt()

qreal KisBoxFilterStrategy::valueAt ( qreal t, qreal weightsPositionScale ) const

overridevirtual

Reimplemented from KisFilterStrategy.

Definition at line 81 of file kis_filter_strategy.cc.

{
    if ((t >= -0.5  * weightsPositionScale) && (t < 0.5 * weightsPositionScale)) return(1.0);
    return(0.0);
}

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

• libs/image/kis_filter_strategy.h
• libs/image/kis_filter_strategy.cc