QMatrix Class Reference

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Detailed Description

Definition at line 61 of file qmatrix.h.

#include <qmatrix.h>

List of all members.

Public Member Functions
	QMatrix (Qt::Initialization)
	QMatrix ()
	QMatrix (qreal m11, qreal m12, qreal m21, qreal m22, qreal dx, qreal dy)
	QMatrix (const QMatrix &matrix)
void	setMatrix (qreal m11, qreal m12, qreal m21, qreal m22, qreal dx, qreal dy)
qreal	m11 () const
qreal	m12 () const
qreal	m21 () const
qreal	m22 () const
qreal	dx () const
qreal	dy () const
void	map (int x, int y, int *tx, int *ty) const
void	map (qreal x, qreal y, qreal *tx, qreal *ty) const
QRect	mapRect (const QRect &) const
QRectF	mapRect (const QRectF &) const
QPoint	map (const QPoint &p) const
QPointF	map (const QPointF &p) const
QLine	map (const QLine &l) const
QLineF	map (const QLineF &l) const
QPolygonF	map (const QPolygonF &a) const
QPolygon	map (const QPolygon &a) const
QRegion	map (const QRegion &r) const
QPainterPath	map (const QPainterPath &p) const
QPolygon	mapToPolygon (const QRect &r) const
void	reset ()
bool	isIdentity () const
QMatrix &	translate (qreal dx, qreal dy)
QMatrix &	scale (qreal sx, qreal sy)
QMatrix &	shear (qreal sh, qreal sv)
QMatrix &	rotate (qreal a)
bool	isInvertible () const
qreal	determinant () const
QMatrix	inverted (bool *invertible=0) const
bool	operator== (const QMatrix &) const
bool	operator!= (const QMatrix &) const
QMatrix &	operator*= (const QMatrix &)
QMatrix	operator* (const QMatrix &o) const
QMatrix &	operator= (const QMatrix &)
	operator QVariant () const
Friends
class	QTransform

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Constructor & Destructor Documentation

QMatrix

(

Qt::Initialization

)

[inline, explicit]

Definition at line 64 of file qmatrix.h.

{}

QMatrix

(

)

QMatrix	(	qreal	m11,
		qreal	m12,
		qreal	m21,
		qreal	m22,
		qreal	dx,
		qreal	dy
	)

QMatrix

(

const QMatrix &

matrix

)

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Member Function Documentation

void setMatrix	(	qreal	m11,
		qreal	m12,
		qreal	m21,
		qreal	m22,
		qreal	dx,
		qreal	dy
	)

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qreal m11

(

)

const [inline]

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Definition at line 73 of file qmatrix.h.

{ return _m11; }

qreal m12

(

)

const [inline]

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Definition at line 74 of file qmatrix.h.

{ return _m12; }

qreal m21

(

)

const [inline]

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Definition at line 75 of file qmatrix.h.

{ return _m21; }

qreal m22

(

)

const [inline]

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Definition at line 76 of file qmatrix.h.

{ return _m22; }

qreal dx

(

)

const [inline]

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Definition at line 77 of file qmatrix.h.

{ return _dx; }

qreal dy

(

)

const [inline]

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Definition at line 78 of file qmatrix.h.

{ return _dy; }

void map	(	int	x,
		int	y,
		int *	tx,
		int *	ty
	)		const

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void map	(	qreal	x,
		qreal	y,
		qreal *	tx,
		qreal *	ty
	)		const

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QRect mapRect

(

const QRect &

)

const

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QRectF mapRect

(

const QRectF &

)

const

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QPoint map

(

const QPoint &

p

)

const

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QPointF map

(

const QPointF &

p

)

const

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QLine map

(

const QLine &

l

)

const

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QLineF map

(

const QLineF &

l

)

const

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QPolygonF map

(

const QPolygonF &

a

)

const

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QPolygon map

(

const QPolygon &

a

)

const

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QRegion map

(

const QRegion &

r

)

const

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QPainterPath map

(

const QPainterPath &

p

)

const

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QPolygon mapToPolygon

(

const QRect &

r

)

const

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void reset

(

)

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bool isIdentity

(

)

const [inline]

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Definition at line 166 of file qmatrix.h.

{
    return qFuzzyIsNull(_m11 - 1) && qFuzzyIsNull(_m22 - 1) && qFuzzyIsNull(_m12)
           && qFuzzyIsNull(_m21) && qFuzzyIsNull(_dx) && qFuzzyIsNull(_dy);
}

QMatrix& translate	(	qreal	dx,
		qreal	dy
	)

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QMatrix& scale	(	qreal	sx,
		qreal	sy
	)

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QMatrix& shear	(	qreal	sh,
		qreal	sv
	)

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QMatrix& rotate

(

qreal

a

)

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bool isInvertible

(

)

const [inline]

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Definition at line 103 of file qmatrix.h.

{ return !qFuzzyIsNull(_m11*_m22 - _m12*_m21); }

qreal determinant

(

)

const [inline]

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Definition at line 104 of file qmatrix.h.

{ return _m11*_m22 - _m12*_m21; }

QMatrix inverted

(

bool *

invertible = 0

)

const

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bool operator==

(

const QMatrix &

)

const

bool operator!=

(

const QMatrix &

)

const

QMatrix& operator*=

(

const QMatrix &

)

QMatrix operator*

(

const QMatrix &

o

)

const

QMatrix& operator=

(

const QMatrix &

)

operator QVariant

(

)

const

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Friends And Related Function Documentation

friend class QTransform [friend]

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Definition at line 142 of file qmatrix.h.

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

• QtGui/qmatrix.h