KisLayerStyleKnockoutBlower Class Reference

#include <KisLayerStyleKnockoutBlower.h>

Public Member Functions
void	apply (KisPainter *painter, KisPaintDeviceSP mergedStyle, const QRect &rect) const
bool	isEmpty () const
	KisLayerStyleKnockoutBlower ()
	KisLayerStyleKnockoutBlower (const KisLayerStyleKnockoutBlower &rhs)
KisSelectionSP	knockoutSelectionLazy ()
void	resetKnockoutSelection ()
void	setKnockoutSelection (KisSelectionSP selection)

Private Attributes
KisSelectionSP	m_knockoutSelection
QReadWriteLock	m_lock

Detailed Description

Definition at line 15 of file KisLayerStyleKnockoutBlower.h.

Constructor & Destructor Documentation

KisLayerStyleKnockoutBlower() [1/2]

KisLayerStyleKnockoutBlower::KisLayerStyleKnockoutBlower

(

)

Definition at line 14 of file KisLayerStyleKnockoutBlower.cpp.

{
}

KisLayerStyleKnockoutBlower() [2/2]

KisLayerStyleKnockoutBlower::KisLayerStyleKnockoutBlower

(

const KisLayerStyleKnockoutBlower &

rhs

)

Definition at line 18 of file KisLayerStyleKnockoutBlower.cpp.

    : m_knockoutSelection(rhs.m_knockoutSelection ? new KisSelection(*rhs.m_knockoutSelection) : nullptr)
{
}

Member Function Documentation

apply()

void KisLayerStyleKnockoutBlower::apply	(	KisPainter *	painter,
		KisPaintDeviceSP	mergedStyle,
		const QRect &	rect ) const

Definition at line 56 of file KisLayerStyleKnockoutBlower.cpp.

{
    QReadLocker l(&m_lock);
 
    KIS_SAFE_ASSERT_RECOVER_NOOP(m_knockoutSelection);
 
    painter->setOpacityToUnit();
    painter->setChannelFlags(QBitArray());
    painter->setCompositeOpId(COMPOSITE_COPY);
    painter->setSelection(m_knockoutSelection);
    painter->bitBlt(rect.topLeft(), mergedStyle, rect);
    painter->setSelection(0);
}

References KisPainter::bitBlt(), COMPOSITE_COPY, KIS_SAFE_ASSERT_RECOVER_NOOP, m_knockoutSelection, m_lock, KisPainter::setChannelFlags(), KisPainter::setCompositeOpId(), KisPainter::setOpacityToUnit(), and KisPainter::setSelection().

isEmpty()

bool KisLayerStyleKnockoutBlower::isEmpty

(

)

const

Definition at line 70 of file KisLayerStyleKnockoutBlower.cpp.

{
    QReadLocker l(&m_lock);
    return !m_knockoutSelection;
}

References m_knockoutSelection, and m_lock.

knockoutSelectionLazy()

KisSelectionSP KisLayerStyleKnockoutBlower::knockoutSelectionLazy

(

)

Definition at line 23 of file KisLayerStyleKnockoutBlower.cpp.

{
    {
        QReadLocker l(&m_lock);
        if (m_knockoutSelection) {
            return m_knockoutSelection;
        }
    }
 
    {
        QWriteLocker l(&m_lock);
        if (m_knockoutSelection) {
            return m_knockoutSelection;
        } else {
            m_knockoutSelection = new KisSelection(new KisSelectionEmptyBounds(),
                                                   KisImageResolutionProxy::identity());
            return m_knockoutSelection;
        }
    }
}

References KisImageResolutionProxy::identity(), m_knockoutSelection, and m_lock.

resetKnockoutSelection()

void KisLayerStyleKnockoutBlower::resetKnockoutSelection

(

)

Definition at line 50 of file KisLayerStyleKnockoutBlower.cpp.

{
    QWriteLocker l(&m_lock);
    m_knockoutSelection = 0;
}

References m_knockoutSelection, and m_lock.

setKnockoutSelection()

void KisLayerStyleKnockoutBlower::setKnockoutSelection

(

KisSelectionSP

selection

)

Definition at line 44 of file KisLayerStyleKnockoutBlower.cpp.

{
    QWriteLocker l(&m_lock);
    m_knockoutSelection = selection;
}

References m_knockoutSelection, and m_lock.

Member Data Documentation

m_knockoutSelection

KisSelectionSP KisLayerStyleKnockoutBlower::m_knockoutSelection

private

Definition at line 32 of file KisLayerStyleKnockoutBlower.h.

m_lock

QReadWriteLock KisLayerStyleKnockoutBlower::m_lock

mutableprivate

Definition at line 31 of file KisLayerStyleKnockoutBlower.h.

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

• libs/image/layerstyles/KisLayerStyleKnockoutBlower.h
• libs/image/layerstyles/KisLayerStyleKnockoutBlower.cpp