qbezier.cpp File Reference

#include "qbezier_p.h"
#include <qdebug.h>
#include <qline.h>
#include <qmath.h>
#include <qpolygon.h>
#include <private/qnumeric_p.h>
#include <tuple>

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Macros
#define	KAPPA   qreal(0.5522847498)

Enumerations
enum	ShiftResult { Ok , Discard , Split , Circle }

Functions
static qreal	scoreQuadratic (const QBezier &b, QPointF qcp)
static QPointF	quadraticForCubic (const QBezier &b)
static ShiftResult	good_offset (const QBezier *b1, const QBezier *b2, qreal offset, qreal threshold)
static QT_WARNING_DISABLE_FLOAT_COMPARE ShiftResult	shift (const QBezier *orig, QBezier *shifted, qreal offset, qreal threshold)
static bool	addCircle (const QBezier *b, qreal offset, QBezier *o)

Macro Definition Documentation

KAPPA

#define KAPPA   qreal(0.5522847498)

Definition at line 394 of file qbezier.cpp.

Enumeration Type Documentation

ShiftResult

enum ShiftResult

Enumerator
Ok
Discard
Split
Circle

Definition at line 274 of file qbezier.cpp.

Function Documentation

addCircle()

static bool addCircle ( const QBezier *  b, qreal  offset, QBezier *  o  )

static

Definition at line 397 of file qbezier.cpp.

References dist(), i, KAPPA, M_1_PI, o, qAcos(), qFuzzyIsNull(), qSqrt(), sign(), QPointF::x(), and QPointF::y().

Referenced by QBezier::shifted().

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good_offset()

static ShiftResult good_offset ( const QBezier *  b1, const QBezier *  b2, qreal  offset, qreal  threshold  )

static

Definition at line 281 of file qbezier.cpp.

References d, i, QBezier::normalVector(), Ok, p1, p2, QBezier::pointAt(), qAbs(), spacing, Split, QPointF::x(), and QPointF::y().

Referenced by shift().

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quadraticForCubic()

static QPointF quadraticForCubic ( const QBezier &  b )

inlinestatic

Definition at line 169 of file qbezier.cpp.

References QLineF::intersects(), and QLineF::NoIntersection.

Referenced by QBezier::addToQuadratics().

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scoreQuadratic()

static qreal scoreQuadratic ( const QBezier &  b, QPointF  qcp  )

inlinestatic

Definition at line 154 of file qbezier.cpp.

References QRectF::bottomRight(), d1, d2, QLineF::length(), qFuzzyIsNull(), qMax(), and QRectF::topLeft().

Referenced by QBezier::addToQuadratics().

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shift()

static QT_WARNING_DISABLE_FLOAT_COMPARE ShiftResult shift ( const QBezier *  orig, QBezier *  shifted, qreal  offset, qreal  threshold  )

static

Definition at line 309 of file qbezier.cpp.

References QBezier::bounds(), Circle, Discard, dot(), QBezier::fromPoints(), good_offset(), i, QLineF::length(), map, next, QLineF::normalVector(), Ok, QLineF::p2(), qFuzzyCompare(), qFuzzyIsNull(), QLineF::unitVector(), QPointF::x(), QBezier::x1, QBezier::x2, QBezier::x3, QBezier::x4, QPointF::y(), QBezier::y1, QBezier::y2, QBezier::y3, and QBezier::y4.

Referenced by qfloat16::qfloat16(), QDoubleSpinBoxPrivate::calculateAdaptiveDecimalStep(), checksum(), decodePolyline(), do_mirror(), parsePolyline(), qt_memrotate270_tiled(), qt_memrotate90_tiled(), qt_static_shift(), rotateSlashesDotsAndMiddots(), setKbdState(), QSGDistanceFieldShiftedStyleTextMaterial::setShift(), QSGStyledTextMaterial::setStyleShift(), QBezier::shifted(), and DistanceFieldShiftedStyleTextMaterialRhiShader::updateUniformData().

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