qdeclarativepath.cpp File Reference

#include "private/qdeclarativepath_p.h"
#include "private/qdeclarativepath_p_p.h"
#include <QSet>
#include <QTime>
#include <private/qbezier_p.h>
#include <QtCore/qmath.h>
#include <QtCore/qnumeric.h>

Go to the source code of this file.

Functions
static QBezier	nextBezier (const QPainterPath &path, int *from, qreal *bezLength)

Function Documentation

nextBezier()

static QBezier nextBezier ( const QPainterPath &  path, int *  from, qreal *  bezLength  )

inlinestatic

Definition at line 346 of file qdeclarativepath.cpp.

Referenced by QDeclarativePath::createPointCache().

{
    const int lastElement = path.elementCount() - 1;
    for (int i=*from; i <= lastElement; ++i) {
        const QPainterPath::Element &e = path.elementAt(i);

        switch (e.type) {
        case QPainterPath::MoveToElement:
            break;
        case QPainterPath::LineToElement:
        {
            QLineF line(path.elementAt(i-1), e);
            *bezLength = line.length();
            QPointF a = path.elementAt(i-1);
            QPointF delta = e - a;
            *from = i+1;
            return QBezier::fromPoints(a, a + delta / 3, a + 2 * delta / 3, e);
        }
        case QPainterPath::CurveToElement:
        {
            QBezier b = QBezier::fromPoints(path.elementAt(i-1),
                                            e,
                                            path.elementAt(i+1),
                                            path.elementAt(i+2));
            *bezLength = b.length();
            *from = i+3;
            return b;
        }
        default:
            break;
        }
    }
    *from = lastElement;
    *bezLength = 0;
    return QBezier();
}