DefaultTool::MoveMeshGradientHandleInteractionFactory Class Reference

Inheritance diagram for DefaultTool::MoveMeshGradientHandleInteractionFactory:

Public Member Functions
KoInteractionStrategy *	createStrategy (KoPointerEvent *ev) override
bool	hoverEvent (KoPointerEvent *ev) override
	MoveMeshGradientHandleInteractionFactory (KoFlake::FillVariant fillVariant, int priority, const QString &id, DefaultTool *_q)
bool	paintOnHover (QPainter &painter, const KoViewConverter &converter) override
bool	tryUseCustomCursor () override
Public Member Functions inherited from KoInteractionStrategyFactory
QString	id () const
	KoInteractionStrategyFactory (int priority, const QString &id)
int	priority () const
virtual	~KoInteractionStrategyFactory ()

Private Member Functions
KoShapeMeshGradientHandles::Handle	handleAt (const QPointF &pos) const
KoShape *	onlyEditableShape () const

Private Attributes
KoShapeMeshGradientHandles::Handle	m_currentHandle
KoFlake::FillVariant	m_fillVariant
DefaultTool *	q

Additional Inherited Members
Static Public Member Functions inherited from KoInteractionStrategyFactory
static bool	compareLess (KoInteractionStrategyFactorySP f1, KoInteractionStrategyFactorySP f2)

Detailed Description

Definition at line 281 of file DefaultTool.cpp.

Constructor & Destructor Documentation

MoveMeshGradientHandleInteractionFactory()

DefaultTool::MoveMeshGradientHandleInteractionFactory::MoveMeshGradientHandleInteractionFactory ( KoFlake::FillVariant fillVariant, int priority, const QString & id, DefaultTool * _q )

inline

Definition at line 284 of file DefaultTool.cpp.

        : KoInteractionStrategyFactory(priority, id)
        , m_fillVariant(fillVariant)
        , q(_q)
    {
    }

Member Function Documentation

createStrategy()

KoInteractionStrategy * DefaultTool::MoveMeshGradientHandleInteractionFactory::createStrategy ( KoPointerEvent * ev )

inlineoverridevirtual

Implements KoInteractionStrategyFactory.

Definition at line 294 of file DefaultTool.cpp.

    {
        m_currentHandle = handleAt(ev->point);
        q->m_selectedMeshHandle = m_currentHandle;
        Q_EMIT q->meshgradientHandleSelected(m_currentHandle);
 
 
        if (m_currentHandle.type != KoShapeMeshGradientHandles::Handle::None) {
            KoShape *shape = onlyEditableShape();
            KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(shape, 0);
 
            return new ShapeMeshGradientEditStrategy(q, m_fillVariant, shape, m_currentHandle, ev->point);
        }
 
        return nullptr;
    }

References handleAt(), KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE, m_currentHandle, m_fillVariant, DefaultTool::m_selectedMeshHandle, DefaultTool::meshgradientHandleSelected(), KoShapeMeshGradientHandles::Handle::None, onlyEditableShape(), KoPointerEvent::point, q, and KoShapeMeshGradientHandles::Handle::type.

handleAt()

KoShapeMeshGradientHandles::Handle DefaultTool::MoveMeshGradientHandleInteractionFactory::handleAt ( const QPointF & pos ) const

inlineprivate

Definition at line 363 of file DefaultTool.cpp.

    {
        // FIXME: copy of KoShapeGradientHandles. use a template?
        KoShapeMeshGradientHandles::Handle result;
 
        KoShape *shape = onlyEditableShape();
        if (shape) {
            KoFlake::SelectionHandle globalHandle = q->handleAt(pos);
            const qreal distanceThresholdSq =
                globalHandle == KoFlake::NoHandle ?
                    HANDLE_DISTANCE_SQ : 0.25 * HANDLE_DISTANCE_SQ;
 
            const KoViewConverter *converter = q->canvas()->viewConverter();
            const QPointF viewPoint = converter->documentToView(pos);
            qreal minDistanceSq = std::numeric_limits<qreal>::max();
 
            KoShapeMeshGradientHandles sh(m_fillVariant, shape);
 
            for (const auto& handle: sh.handles()) {
                const QPointF handlePoint = converter->documentToView(handle.pos);
                const qreal distanceSq = kisSquareDistance(viewPoint, handlePoint);
 
                if (distanceSq < distanceThresholdSq && distanceSq < minDistanceSq) {
                    result = handle;
                    minDistanceSq = distanceSq;
                }
            }
        }
 
        return result;
    }

References KoToolBase::canvas(), KoViewConverter::documentToView(), HANDLE_DISTANCE_SQ, DefaultTool::handleAt(), KoShapeMeshGradientHandles::handles(), kisSquareDistance(), m_fillVariant, KoFlake::NoHandle, onlyEditableShape(), q, and KoCanvasBase::viewConverter().

hoverEvent()

bool DefaultTool::MoveMeshGradientHandleInteractionFactory::hoverEvent ( KoPointerEvent * ev )

inlineoverridevirtual

Implements KoInteractionStrategyFactory.

Definition at line 311 of file DefaultTool.cpp.

    {
        // for custom cursor
        KoShapeMeshGradientHandles::Handle handle = handleAt(ev->point);
 
        // refresh
        if (handle.type != m_currentHandle.type && handle.type == KoShapeMeshGradientHandles::Handle::None) {
            q->repaintDecorations();
        }
 
        m_currentHandle = handle;
        q->m_hoveredMeshHandle = m_currentHandle;
 
        // highlight the decoration which is being hovered
        if (m_currentHandle.type != KoShapeMeshGradientHandles::Handle::None) {
            q->repaintDecorations();
        }
        return false;
    }

References handleAt(), m_currentHandle, DefaultTool::m_hoveredMeshHandle, KoShapeMeshGradientHandles::Handle::None, KoPointerEvent::point, q, KoToolBase::repaintDecorations(), and KoShapeMeshGradientHandles::Handle::type.

onlyEditableShape()

KoShape * DefaultTool::MoveMeshGradientHandleInteractionFactory::onlyEditableShape ( ) const

inlineprivate

Definition at line 350 of file DefaultTool.cpp.

                                       {
        // FIXME: copy of KoShapeGradientHandles
        KoSelection *selection = q->koSelection();
        QList<KoShape*> shapes = selection->selectedEditableShapes();
 
        KoShape *shape = 0;
        if (shapes.size() == 1) {
            shape = shapes.first();
        }
 
        return shape;
    }

References DefaultTool::koSelection(), q, and DefaultTool::selection().

paintOnHover()

bool DefaultTool::MoveMeshGradientHandleInteractionFactory::paintOnHover ( QPainter & painter, const KoViewConverter & converter )

inlineoverridevirtual

Implements KoInteractionStrategyFactory.

Definition at line 331 of file DefaultTool.cpp.

    {
        Q_UNUSED(painter);
        Q_UNUSED(converter);
        return false;
    }

tryUseCustomCursor()

bool DefaultTool::MoveMeshGradientHandleInteractionFactory::tryUseCustomCursor ( )

inlineoverridevirtual

Implements KoInteractionStrategyFactory.

Definition at line 338 of file DefaultTool.cpp.

    {
        if (m_currentHandle.type != KoShapeMeshGradientHandles::Handle::None) {
            q->useCursor(Qt::OpenHandCursor);
            return true;
        }
 
        return false;
    }

References m_currentHandle, KoShapeMeshGradientHandles::Handle::None, q, KoShapeMeshGradientHandles::Handle::type, and KoToolBase::useCursor().

Member Data Documentation

m_currentHandle

KoShapeMeshGradientHandles::Handle DefaultTool::MoveMeshGradientHandleInteractionFactory::m_currentHandle

private

Definition at line 397 of file DefaultTool.cpp.

m_fillVariant

KoFlake::FillVariant DefaultTool::MoveMeshGradientHandleInteractionFactory::m_fillVariant

private

Definition at line 396 of file DefaultTool.cpp.

q

DefaultTool* DefaultTool::MoveMeshGradientHandleInteractionFactory::q

private

Definition at line 398 of file DefaultTool.cpp.

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

• plugins/tools/defaulttool/defaulttool/DefaultTool.cpp