QSubpathBackwardIterator Class Reference

Public Functions
bool	hasNext () const
QStrokerOps::Element	next ()
int	position () const
	QSubpathBackwardIterator (const QDataBuffer< QStrokerOps::Element > *path)

Properties
const QDataBuffer< QStrokerOps::Element > *	m_path
int	m_pos

Detailed Description

Definition at line 67 of file qstroker.cpp.

Constructors and Destructors

QSubpathBackwardIterator()

QSubpathBackwardIterator::QSubpathBackwardIterator ( const QDataBuffer< QStrokerOps::Element > *  path )

inline

Definition at line 70 of file qstroker.cpp.

        : m_path(path), m_pos(path->size() - 1) { }

Functions

hasNext()

bool QSubpathBackwardIterator::hasNext ( ) const

inline

Definition at line 75 of file qstroker.cpp.

{ return m_pos >= 0; }

next()

QStrokerOps::Element QSubpathBackwardIterator::next ( )

inline

Definition at line 77 of file qstroker.cpp.

    {
        Q_ASSERT(hasNext());

        QStrokerOps::Element ce = m_path->at(m_pos);   // current element

        if (m_pos == m_path->size() - 1) {
            --m_pos;
            ce.type = QPainterPath::MoveToElement;
            return ce;
        }

        const QStrokerOps::Element &pe = m_path->at(m_pos + 1); // previous element

        switch (pe.type) {
        case QPainterPath::LineToElement:
            ce.type = QPainterPath::LineToElement;
            break;
        case QPainterPath::CurveToDataElement:
            // First control point?
            if (ce.type == QPainterPath::CurveToElement) {
                ce.type = QPainterPath::CurveToDataElement;
            } else { // Second control point then
                ce.type = QPainterPath::CurveToElement;
            }
            break;
        case QPainterPath::CurveToElement:
            ce.type = QPainterPath::CurveToDataElement;
            break;
        default:
            qWarning("QSubpathReverseIterator::next: Case %d unhandled", ce.type);
            break;
        }
        --m_pos;

        return ce;
    }

position()

int QSubpathBackwardIterator::position ( ) const

inline

Definition at line 73 of file qstroker.cpp.

{ return m_pos; }

Properties

m_path

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

private

Definition at line 116 of file qstroker.cpp.

m_pos

int QSubpathBackwardIterator::m_pos

private

Definition at line 117 of file qstroker.cpp.

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

• /src/gui/painting/qstroker.cpp