KisSnapPixelStrategy Class Reference

#include <KisSnapPixelStrategy.h>

Inheritance diagram for KisSnapPixelStrategy:

Public Member Functions
QPainterPath	decoration (const KoViewConverter &converter) const override
	returns the current snap strategy decoration
	KisSnapPixelStrategy (KoSnapGuide::Strategy type=KoSnapGuide::PixelSnapping)
bool	snap (const QPointF &mousePosition, KoSnapProxy *proxy, qreal maxSnapDistance) override
	~KisSnapPixelStrategy () override
Public Member Functions inherited from KoSnapStrategy
	KoSnapStrategy (KoSnapGuide::Strategy type)
QPointF	snappedPosition () const
	returns the snapped position form the last call to snapToPoints
SnapType	snappedType () const
KoSnapGuide::Strategy	type () const
	returns the strategies type
virtual	~KoSnapStrategy ()

Additional Inherited Members
Public Types inherited from KoSnapStrategy
enum	SnapType { ToPoint = 0 , ToLine }
Static Public Member Functions inherited from KoSnapStrategy
static qreal	scalarProduct (const QPointF &p1, const QPointF &p2)
static qreal	squareDistance (const QPointF &p1, const QPointF &p2)
Protected Member Functions inherited from KoSnapStrategy
void	setSnappedPosition (const QPointF &position, SnapType snapType)
	sets the current snapped position

Detailed Description

Definition at line 14 of file KisSnapPixelStrategy.h.

Constructor & Destructor Documentation

KisSnapPixelStrategy()

KisSnapPixelStrategy::KisSnapPixelStrategy

(

KoSnapGuide::Strategy

type = KoSnapGuide::PixelSnapping

)

Definition at line 14 of file KisSnapPixelStrategy.cpp.

                                                                  :
    KoSnapStrategy(type)
{
}

~KisSnapPixelStrategy()

KisSnapPixelStrategy::~KisSnapPixelStrategy ( )

override

Definition at line 19 of file KisSnapPixelStrategy.cpp.

{
}

Member Function Documentation

decoration()

QPainterPath KisSnapPixelStrategy::decoration ( const KoViewConverter & converter ) const

overridevirtual

returns the current snap strategy decoration

Implements KoSnapStrategy.

Definition at line 36 of file KisSnapPixelStrategy.cpp.

{
    QSizeF unzoomedSize = converter.viewToDocument(QSizeF(5, 5));
    QPainterPath decoration;
    decoration.moveTo(snappedPosition() - QPointF(unzoomedSize.width(), 0));
    decoration.lineTo(snappedPosition() + QPointF(unzoomedSize.width(), 0));
    decoration.moveTo(snappedPosition() - QPointF(0, unzoomedSize.height()));
    decoration.lineTo(snappedPosition() + QPointF(0, unzoomedSize.height()));
    return decoration;
}

References decoration(), KoSnapStrategy::snappedPosition(), and KoViewConverter::viewToDocument().

snap()

bool KisSnapPixelStrategy::snap ( const QPointF & mousePosition, KoSnapProxy * proxy, qreal maxSnapDistance )

overridevirtual

Implements KoSnapStrategy.

Definition at line 23 of file KisSnapPixelStrategy.cpp.

{
    Q_UNUSED(maxSnapDistance);
    KisCanvas2 *canvas2 = dynamic_cast<KisCanvas2*>(proxy->canvas());
    KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(canvas2, false);
 
    const QPointF imagePos = canvas2->coordinatesConverter()->documentToImage(mousePosition);
    const QPointF alignedDocPoint = canvas2->coordinatesConverter()->imageToDocument(imagePos.toPoint());
    setSnappedPosition(alignedDocPoint, ToPoint);
 
    return true;
}

References KoSnapProxy::canvas(), KisCanvas2::coordinatesConverter, KisCoordinatesConverter::documentToImage(), KisCoordinatesConverter::imageToDocument(), KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE, KoSnapStrategy::setSnappedPosition(), and KoSnapStrategy::ToPoint.

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

• libs/ui/canvas/KisSnapPixelStrategy.h
• libs/ui/canvas/KisSnapPixelStrategy.cpp