KisScreentoneGeneratorAlignedTemplateSampler< Template > Class Template Reference

#include <KisScreentoneGeneratorTemplateSampler.h>

Public Member Functions
	KisScreentoneGeneratorAlignedTemplateSampler (const Template &the_template)
qreal	operator() (qreal x, qreal y) const

Private Attributes
const Template &	m_template

Detailed Description

template<typename Template>
class KisScreentoneGeneratorAlignedTemplateSampler< Template >

Definition at line 17 of file KisScreentoneGeneratorTemplateSampler.h.

Constructor & Destructor Documentation

KisScreentoneGeneratorAlignedTemplateSampler()

template<typename Template >

KisScreentoneGeneratorAlignedTemplateSampler< Template >::KisScreentoneGeneratorAlignedTemplateSampler ( const Template & the_template )

inline

Definition at line 20 of file KisScreentoneGeneratorTemplateSampler.h.

        : m_template(the_template)
    {}

Member Function Documentation

operator()()

template<typename Template >

qreal KisScreentoneGeneratorAlignedTemplateSampler< Template >::operator() ( qreal x, qreal y ) const

inline

Definition at line 24 of file KisScreentoneGeneratorTemplateSampler.h.

    {
        // Get the coordinates in template space
        QPointF p(
            x + std::round(m_template.screenPosition().x()),
            y + std::round(m_template.screenPosition().y())
        );
        // Get the coordinates in screen space
        const QPointF screenPos = m_template.templateToScreenTransform().map(p);
        // Get x/y indices in macrocell units or the current macrocell tile
        // position
        const qreal a = -std::floor(screenPos.x() / static_cast<qreal>(m_template.macrocellSize().width()));
        const qreal b = -std::floor(screenPos.y() / static_cast<qreal>(m_template.macrocellSize().height()));
        // Get the correspondent point in the (0, 0) macrocell tile
        p += QPointF(a * m_template.v1().x() + b * m_template.v2().x(), a * m_template.v1().y() + b * m_template.v2().y());
 
        const int i = static_cast<int>(std::floor(p.x())) + m_template.originOffset().x();
        const int j = static_cast<int>(std::floor(p.y())) + m_template.originOffset().y();
        const int macrocellPointIndex = j * m_template.templateSize().width() + i;
        return m_template.templateData()[macrocellPointIndex];
    }

References KisScreentoneGeneratorAlignedTemplateSampler< Template >::m_template, and p.

Member Data Documentation

m_template

template<typename Template >

const Template& KisScreentoneGeneratorAlignedTemplateSampler< Template >::m_template

private

Definition at line 47 of file KisScreentoneGeneratorTemplateSampler.h.

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

• plugins/generators/screentone/KisScreentoneGeneratorTemplateSampler.h