QSubpathFlatIterator Class Reference

Public Functions
bool	hasNext () const
QStrokerOps::Element	next ()
	QSubpathFlatIterator (const QDataBuffer< QStrokerOps::Element > *path, qreal threshold)

Properties
QPolygonF	m_curve
int	m_curve_index
qreal	m_curve_threshold
const QDataBuffer< QStrokerOps::Element > *	m_path
int	m_pos

Detailed Description

Definition at line 120 of file qstroker.cpp.

Constructors and Destructors

QSubpathFlatIterator()

QSubpathFlatIterator::QSubpathFlatIterator ( const QDataBuffer< QStrokerOps::Element > *  path, qreal  threshold  )

inline

Definition at line 123 of file qstroker.cpp.

        : m_path(path), m_pos(0), m_curve_index(-1), m_curve_threshold(threshold) { }

Functions

hasNext()

bool QSubpathFlatIterator::hasNext ( ) const

inline

Definition at line 126 of file qstroker.cpp.

Referenced by QDashStroker::processCurrentSubpath().

{ return m_curve_index >= 0 || m_pos < m_path->size(); }

next()

QStrokerOps::Element QSubpathFlatIterator::next ( )

inline

Definition at line 128 of file qstroker.cpp.

Referenced by QDashStroker::processCurrentSubpath().

    {
        Q_ASSERT(hasNext());

        if (m_curve_index >= 0) {
            QStrokerOps::Element e = { QPainterPath::LineToElement,
                                       qt_real_to_fixed(m_curve.at(m_curve_index).x()),
                                       qt_real_to_fixed(m_curve.at(m_curve_index).y())
                                       };
            ++m_curve_index;
            if (m_curve_index >= m_curve.size())
                m_curve_index = -1;
            return e;
        }

        QStrokerOps::Element e = m_path->at(m_pos);
        if (e.isCurveTo()) {
            Q_ASSERT(m_pos > 0);
            Q_ASSERT(m_pos < m_path->size());

            m_curve = QBezier::fromPoints(QPointF(qt_fixed_to_real(m_path->at(m_pos-1).x),
                                                  qt_fixed_to_real(m_path->at(m_pos-1).y)),
                                          QPointF(qt_fixed_to_real(e.x),
                                                  qt_fixed_to_real(e.y)),
                                          QPointF(qt_fixed_to_real(m_path->at(m_pos+1).x),
                                                  qt_fixed_to_real(m_path->at(m_pos+1).y)),
                                          QPointF(qt_fixed_to_real(m_path->at(m_pos+2).x),
                                                  qt_fixed_to_real(m_path->at(m_pos+2).y))).toPolygon(m_curve_threshold);
            m_curve_index = 1;
            e.type = QPainterPath::LineToElement;
            e.x = m_curve.at(0).x();
            e.y = m_curve.at(0).y();
            m_pos += 2;
        }
        Q_ASSERT(e.isLineTo() || e.isMoveTo());
        ++m_pos;
        return e;
    }

Properties

m_curve

QPolygonF QSubpathFlatIterator::m_curve

private

Definition at line 170 of file qstroker.cpp.

m_curve_index

int QSubpathFlatIterator::m_curve_index

private

Definition at line 171 of file qstroker.cpp.

m_curve_threshold

qreal QSubpathFlatIterator::m_curve_threshold

private

Definition at line 172 of file qstroker.cpp.

m_path

const QDataBuffer<QStrokerOps::Element>* QSubpathFlatIterator::m_path

private

Definition at line 168 of file qstroker.cpp.

m_pos

int QSubpathFlatIterator::m_pos

private

Definition at line 169 of file qstroker.cpp.

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

• /src/gui/painting/qstroker.cpp