QPointF Class Reference

The QPointF class defines a point in the plane using floating point precision. More...

#include <qpoint.h>

Public Functions
bool	isNull () const
	Returns true if both the x and y coordinates are set to +0. More...
qreal	manhattanLength () const
	Returns the sum of the absolute values of x() and y(), traditionally known as the "Manhattan length" of the vector from the origin to the point. More...
QPointF &	operator*= (qreal c)
	Multiplies this point's coordinates by the given factor, and returns a reference to this point. More...
QPointF &	operator+= (const QPointF &p)
	Adds the given point to this point and returns a reference to this point. More...
QPointF &	operator-= (const QPointF &p)
	Subtracts the given point from this point and returns a reference to this point. More...
QPointF &	operator/= (qreal c)
	Divides both x and y by the given divisor, and returns a reference to this point. More...
	QPointF ()
	Constructs a null point, i. More...
	QPointF (const QPoint &p)
	Constructs a copy of the given point. More...
	QPointF (qreal xpos, qreal ypos)
	Constructs a point with the given coordinates (x, y). More...
qreal &	rx ()
	Returns a reference to the x coordinate of this point. More...
qreal &	ry ()
	Returns a reference to the y coordinate of this point. More...
void	setX (qreal x)
	Sets the x coordinate of this point to the given x coordinate. More...
void	setY (qreal y)
	Sets the y coordinate of this point to the given y coordinate. More...
QPoint	toPoint () const
	Rounds the coordinates of this point to the nearest integer, and returns a QPoint object with the rounded coordinates. More...
qreal	x () const
	Returns the x-coordinate of this point. More...
qreal	y () const
	Returns the y-coordinate of this point. More...

Properties
qreal	xp
qreal	yp

Friends
bool	operator!= (const QPointF &, const QPointF &)
	Returns true if p1 is not equal to p2; otherwise returns false. More...
const QPointF	operator* (qreal, const QPointF &)
const QPointF	operator* (const QPointF &, qreal)
const QPointF	operator+ (const QPointF &, const QPointF &)
	Returns a QPointF object that is the sum of the given points, p1 and p2; each component is added separately. More...
const QPointF	operator- (const QPointF &, const QPointF &)
	Returns a QPointF object that is formed by subtracting p2 from p1; each component is subtracted separately. More...
const QPointF	operator- (const QPointF &)
	Returns a QPointF object that is formed by changing the sign of both components of the given point. More...
const QPointF	operator/ (const QPointF &, qreal)
	Returns the QPointF object formed by dividing both components of the given point by the given divisor. More...
bool	operator== (const QPointF &, const QPointF &)
	Returns true if p1 is equal to p2; otherwise returns false. More...
class	QMatrix
class	QTransform

Related Functions
(Note that these are not member functions.)
QDataStream &	operator<< (QDataStream &stream, const QPointF &point)
	Writes the given point to the given stream and returns a reference to the stream. More...
QDataStream &	operator>> (QDataStream &stream, QPointF &point)
	Reads a point from the given stream into the given point and returns a reference to the stream. More...

Detailed Description

The QPointF class defines a point in the plane using floating point precision.

A point is specified by a x coordinate and an y coordinate which can be accessed using the x() and y() functions. The coordinates of the point are specified using floating point numbers for accuracy. The isNull() function returns true if both x and y are set to 0.0. The coordinates can be set (or altered) using the setX() and setY() functions, or alternatively the rx() and ry() functions which return references to the coordinates (allowing direct manipulation).

Given a point p, the following statements are all equivalent:

QPointF p;

p.setX(p.x() + 1.0);
p += QPointF(1.0, 0.0);
p.rx()++;

A QPointF object can also be used as a vector: Addition and subtraction are defined as for vectors (each component is added separately). A QPointF object can also be divided or multiplied by an int or a qreal.

In addition, the QPointF class provides a constructor converting a QPoint object into a QPointF object, and a corresponding toPoint() function which returns a QPoint copy of this point. Finally, QPointF objects can be streamed as well as compared.

See also

QPoint, QPolygonF

Definition at line 214 of file qpoint.h.

Constructors and Destructors

QPointF() [1/3]

QPointF::QPointF ( )

inline

Constructs a null point, i.

e. with coordinates (0.0, 0.0)

\sa isNull()

Definition at line 271 of file qpoint.h.

Referenced by operator*(), operator+(), operator-(), and operator/().

: xp(0), yp(0) { }

QPointF() [2/3]

QPointF::QPointF ( const QPoint &  point )

inline

Constructs a copy of the given point.

See also

toPoint()

Definition at line 275 of file qpoint.h.

: xp(p.x()), yp(p.y()) { }

QPointF() [3/3]

QPointF::QPointF ( qreal  x, qreal  y  )

inline

Constructs a point with the given coordinates (x, y).

See also

setX(), setY()

Definition at line 273 of file qpoint.h.

: xp(xpos), yp(ypos) { }

Functions

isNull()

bool QPointF::isNull ( ) const

inline

Returns true if both the x and y coordinates are set to +0.

0; otherwise returns false.

Note

Since this function treats +0.0 and -0.0 differently, points with zero-valued coordinates where either or both values have a negative sign are not defined to be null points.

Definition at line 277 of file qpoint.h.

Referenced by QGraphicsItemGroup::addToGroup(), QGraphicsItemPrivate::childrenBoundingRectHelper(), QTextControl::createStandardContextMenu(), QVGPixmapConvolutionFilter::draw(), QVGPixmapColorizeFilter::draw(), QVGPixmapDropShadowFilter::draw(), QVGPixmapBlurFilter::draw(), QSvgUse::draw(), QGraphicsScenePrivate::drawItemHelper(), QVGPaintEngine::drawPixmapFragments(), QWin32PrintEngine::drawTiledPixmap(), drawVGImage(), QAbstractScrollArea::event(), QPlainTextEdit::event(), printPage(), QGraphicsItemGroup::removeFromGroup(), and QPolygonF::translate().

{
    return qIsNull(xp) && qIsNull(yp);
}

manhattanLength()

qreal QPointF::manhattanLength

(

)

const

Returns the sum of the absolute values of x() and y(), traditionally known as the "Manhattan length" of the vector from the origin to the point.

Since

4.6

See also

QPoint::manhattanLength()

Definition at line 603 of file qpoint.cpp.

Referenced by QmlJSDebugger::ZoomTool::mouseMoveEvent().

{
    return qAbs(x())+qAbs(y());
}

operator*=()

QPointF & QPointF::operator*= ( qreal  factor )

inline

Multiplies this point's coordinates by the given factor, and returns a reference to this point.

For example:

QPointF p(-1.1, 4.1);
p *= 2.5;    // p becomes (-2.75, 10.25)

See also

operator/=()

Definition at line 324 of file qpoint.h.

{
    xp*=c; yp*=c; return *this;
}

operator+=()

QPointF & QPointF::operator+= ( const QPointF &  point )

inline

Adds the given point to this point and returns a reference to this point.

For example:

QPointF p( 3.1, 7.1);
QPointF q(-1.0, 4.1);
p += q;    // p becomes (2.1, 11.2)

See also

operator-=()

Definition at line 312 of file qpoint.h.

{
    xp+=p.xp;
    yp+=p.yp;
    return *this;
}

operator-=()

QPointF & QPointF::operator-= ( const QPointF &  point )

inline

Subtracts the given point from this point and returns a reference to this point.

For example:

QPointF p( 3.1, 7.1);
QPointF q(-1.0, 4.1);
p -= q;    // p becomes (4.1, 3.0)

See also

operator+=()

Definition at line 319 of file qpoint.h.

{
    xp-=p.xp; yp-=p.yp; return *this;
}

operator/=()

QPointF & QPointF::operator/= ( qreal  divisor )

inline

Divides both x and y by the given divisor, and returns a reference to this point.

For example:

QPointF p(-2.75, 10.25);
p /= 2.5;           // p becomes (-1.1, 4.1)

See also

operator*=()

Definition at line 364 of file qpoint.h.

{
    xp/=c;
    yp/=c;
    return *this;
}

rx()

qreal & QPointF::rx ( )

inline

Returns a reference to the x coordinate of this point.

Using a reference makes it possible to directly manipulate x. For example:

 QPointF p(1.1, 2.5);
 p.rx()--;   // p becomes (0.1, 2.5)

See also

x(), setX()

Definition at line 302 of file qpoint.h.

Referenced by QDirectFBPaintEnginePrivate::drawTiledPixmap(), QAbstractScrollArea::event(), QPlainTextEdit::event(), QX11PaintEnginePrivate::fillPath(), QGraphicsView::mapFromScene(), QGraphicsView::mapToScene(), QGraphicsViewPrivate::mapToScene(), qt_find_ellipse_coords(), QRasterizer::rasterizeLine(), QmlJSDebugger::ZoomTool::scaleView(), QLineF::setAngle(), QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(), and QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent().

{
    return xp;
}

ry()

qreal & QPointF::ry ( )

inline

Returns a reference to the y coordinate of this point.

Using a reference makes it possible to directly manipulate y. For example:

QPointF p(1.1, 2.5);
p.ry()++;   // p becomes (1.1, 3.5)

See also

y() setY()

Definition at line 307 of file qpoint.h.

Referenced by QPlainTextEditControl::blockBoundingRect(), QDirectFBPaintEnginePrivate::drawTiledPixmap(), QPlainTextEditControl::hitTest(), QGraphicsView::mapFromScene(), QGraphicsView::mapToScene(), QGraphicsViewPrivate::mapToScene(), QPlainTextEdit::paintEvent(), qt_find_ellipse_coords(), QRasterizer::rasterizeLine(), QmlJSDebugger::ZoomTool::scaleView(), QLineF::setAngle(), QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(), and QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent().

{
    return yp;
}

setX()

void QPointF::setX ( qreal  x )

inline

Sets the x coordinate of this point to the given x coordinate.

See also

x() setY()

Definition at line 292 of file qpoint.h.

Referenced by QTriangulator< T >::ComplexToSimple::Event::operator<(), operator>>(), QDeclarativePointFValueType::setX(), and sign().

{
    xp = xpos;
}

setY()

void QPointF::setY ( qreal  y )

inline

Sets the y coordinate of this point to the given y coordinate.

See also

y(), setX()

Definition at line 297 of file qpoint.h.

Referenced by QTriangulator< T >::ComplexToSimple::Event::operator<(), operator>>(), QDeclarativePointFValueType::setY(), and sign().

{
    yp = ypos;
}

toPoint()

QPoint QPointF::toPoint ( ) const

inline

Rounds the coordinates of this point to the nearest integer, and returns a QPoint object with the rounded coordinates.

See also

QPointF()

Definition at line 376 of file qpoint.h.

Referenced by QPainter::brushOrigin(), QGraphicsProxyWidget::contextMenuEvent(), QGestureManager::deliverEvents(), QGraphicsProxyWidget::dragEnterEvent(), QGraphicsProxyWidget::dragMoveEvent(), QTextDocumentLayoutPrivate::drawListItem(), QWidget::event(), QPlainTextEdit::inputMethodQuery(), QTextEdit::inputMethodQuery(), QGraphicsTextItem::inputMethodQuery(), QGraphicsProxyWidgetPrivate::inputMethodQueryHelper(), QOpenGLPaintEnginePrivate::isFastRect(), QGraphicsView::mapFromScene(), QWidget::mapToGlobal(), QGestureEvent::mapToGraphicsScene(), QmlJSDebugger::LiveSelectionTool::mouseMoveEvent(), QTextControlPrivate::mouseMoveEvent(), QTextControlPrivate::mousePressEvent(), QmlJSDebugger::LiveSelectionTool::mouseReleaseEvent(), QGraphicsEffectSource::pixmap(), QGraphicsItemEffectSourcePrivate::pixmap(), QCursor::pos(), QLineControl::processEvent(), qt_mac_handleTabletEvent(), QSwipeGestureRecognizer::recognize(), QTapGestureRecognizer::recognize(), QTapAndHoldGestureRecognizer::recognize(), QDeclarativePathView::sendMouseEvent(), QDeclarativeMouseArea::sendMouseEvent(), QDeclarativeFlickable::sendMouseEvent(), QDeclarativePinchArea::sendMouseEvent(), QGraphicsScenePrivate::sendTouchBeginEvent(), QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent(), QLineF::toLine(), QGraphicsScenePrivate::touchEventHandler(), QApplicationPrivate::translateRawTouchEvent(), QETWidget::translateTabletEvent(), QGraphicsPixmapItemPrivate::updateShape(), QApplicationPrivate::updateTouchPointsForWidget(), QGraphicsProxyWidget::wheelEvent(), QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(), and QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent().

{
    return QPoint(qRound(xp), qRound(yp));
}

x()

qreal QPointF::x ( ) const

inline

Returns the x-coordinate of this point.

See also

setX(), rx()

Definition at line 282 of file qpoint.h.

Referenced by QFreetypeFace::addBitmapToPath(), QPdfEnginePrivate::addBrushPattern(), addCircle(), QPainterPath::addEllipse(), addGlyphToPath(), addLineTo(), QGL2PEXVertexArray::addPath(), QPathSegments::addPath(), QPainterPath::addPolygon(), QPainterPath::addText(), QGraphicsItemGroup::addToGroup(), QStyleHelper::angle(), QLineF::angle(), boundingRect(), QPolygonF::boundingRect(), QSvgLine::bounds(), QRasterPaintEnginePrivate::brushMatrix(), QGraphicsView::centerOn(), QAccessibleTextWidget::characterRect(), comparePoints(), component(), computeAngle(), QRectF::contains(), QOutlineMapper::convertElements(), QPainter::PixmapFragment::create(), QTriangulatingStroker::cubicTo(), QPainterPath::cubicTo(), QOutlineMapper::curveTo(), QCoreGraphicsPaintEnginePrivate::devicePixelSize(), QGraphicsItem::deviceTransform(), QDeclarativeParentChangePrivate::doChange(), dot(), QDeclarativeTextLayout::draw(), QPixmapConvolutionFilter::draw(), QSvgText::draw(), QTextLine::draw(), draw_text_item_win(), QRasterPaintEngine::drawBitmap(), QPaintEnginePrivate::drawBoxTextItem(), QVGPaintEngine::drawCachedGlyphs(), QRasterPaintEngine::drawCachedGlyphs(), QTextLayout::drawCursor(), QStyleHelper::drawDial(), QPainter::drawEllipse(), QTextDocumentLayoutPrivate::drawFrame(), QX11PaintEngine::drawFreetype(), QVGPaintEngine::drawImage(), QRasterPaintEngine::drawImage(), QRasterPaintEnginePrivate::drawImage(), QPainter::drawImage(), QGraphicsScenePrivate::drawItemHelper(), QCosmeticStroker::drawLine(), QCoreGraphicsPaintEngine::drawLines(), QVGPaintEngine::drawLines(), QOpenGLPaintEngine::drawLines(), QGLEllipseMaskGenerator::drawMask(), QCosmeticStroker::drawPath(), QWin32PrintEngine::drawPixmap(), QPainter::drawPixmap(), QCoreGraphicsPaintEngine::drawPoints(), QX11PaintEngine::drawPoints(), QCosmeticStroker::drawPoints(), QOpenGLPaintEngine::drawPoints(), QVGPaintEngine::drawPoints(), QPaintEngine::drawPoints(), QPaintEngineEx::drawPoints(), QVGPaintEngine::drawPolygon(), QOpenGLPaintEngine::drawPolygon(), QSvgPaintEngine::drawPolygon(), QPaintBufferEngine::drawPolygon(), QVGPaintEngine::drawRects(), QPainter::drawStaticText(), QPainter::drawText(), QEmulationPaintEngine::drawTextItem(), QAlphaPaintEngine::drawTextItem(), QCoreGraphicsPaintEngine::drawTextItem(), QPicturePaintEngine::drawTextItem(), QGL2PaintEngineEx::drawTextItem(), QOpenGLPaintEngine::drawTextItem(), QPdfEnginePrivate::drawTextItem(), QSvgPaintEngine::drawTextItem(), QPaintEngine::drawTextItem(), QRasterPaintEngine::drawTextItem(), QPdfBaseEnginePrivate::drawTextItem(), QPainter::drawTextItem(), drawTextItemDecoration(), QOpenGLPaintEnginePrivate::drawTiledImageAsPath(), QPSPrintEngine::drawTiledPixmap(), QCoreGraphicsPaintEngine::drawTiledPixmap(), QDirectFBPaintEnginePrivate::drawTiledPixmap(), QX11PaintEngine::drawTiledPixmap(), QOpenGLPaintEngine::drawTiledPixmap(), QVGPaintEngine::drawTiledPixmap(), QPaintEngine::drawTiledPixmap(), QRasterPaintEngine::drawTiledPixmap(), QPaintEngineEx::drawTiledPixmap(), QPainter::drawTiledPixmap(), drawVGImage(), QX11PaintEngine::drawXLFD(), QLineF::dx(), QOutlineMapper::endOutline(), epsilonCompare(), QAbstractScrollArea::event(), QPlainTextEdit::event(), QPicture::exec(), QTextControlPrivate::extendWordwiseSelection(), QBlitterPaintEngine::fillRect(), QDirectFBPaintEngine::fillRect(), QVGPaintEngine::fillRect(), findCrossings(), flipPoint(), QFixedPoint::fromPointF(), QBezier::fromPoints(), QGLRectMaskGenerator::generateTrapezoids(), QDeclarativeCompiler::genLiteralAssignment(), QStaticTextPrivate::get(), good_offset(), QDeclarativePathViewPrivate::handleMouseMoveEvent(), QDeclarativeFlickablePrivate::handleMouseMoveEvent(), QDeclarativePathViewPrivate::handleMousePressEvent(), QDeclarativeFlickablePrivate::handleMouseReleaseEvent(), QIntersectionFinder::hasIntersections(), QTextDocumentLayout::hitTest(), QPlainTextEditControl::hitTest(), QTextDocumentLayoutPrivate::hitTest(), QGraphicsSceneBspTree::initialize(), QTriangulator< T >::initialize(), QLineF::intersect(), QWingedEdge::isInside(), QLineF::isNull(), QGraphicsItem::itemTransform(), QStroker::joinPoints(), QTextDocumentLayoutPrivate::layoutBlock(), QLineF::length(), QIntersectionFinder::linesIntersect(), QPainterPath::lineTo(), QOutlineMapper::lineTo(), QMatrix::map(), QTransform::map(), QDeclarativeItem::mapFromItem(), QGraphicsItem::mapFromScene(), mapHomogeneous(), QMatrix4x4::mapRect(), QDeclarativeItem::mapToItem(), QGraphicsItem::mapToScene(), QGraphicsViewPrivate::mapToViewRect(), QBezier::midTangent(), QDeclarativeTextInput::mouseDoubleClickEvent(), QTextControlPrivate::mouseMoveEvent(), QDeclarativeMouseArea::mouseMoveEvent(), QDeclarativeTextInput::mouseMoveEvent(), QGraphicsItem::mouseMoveEvent(), QTextControlPrivate::mousePressEvent(), QDeclarativeTextInput::mousePressEvent(), QmlJSDebugger::ZoomTool::mouseReleaseEvent(), QRectF::moveBottomLeft(), QRectF::moveBottomRight(), QRectF::moveCenter(), QPainterPath::moveTo(), QOutlineMapper::moveTo(), QRectF::moveTo(), QRectF::moveTopLeft(), QRectF::moveTopRight(), QKdPointFinder::operator()(), operator*(), QTriangulator< T >::ComplexToSimple::Event::operator<(), QPdf::ByteStream::operator<<(), operator<<(), QVGPaintEnginePrivate::painterPathToVGPath(), QPlainTextEdit::paintEvent(), parsePathDataFast(), QPdf::patternForBrush(), QPaintBufferEngine::penChanged(), QLineF::pointAt(), QDeclarativePathViewPrivate::pointNear(), PointToVector(), QGraphicsItemAnimation::posAt(), printPage(), QDashedStrokeProcessor::process(), QDashStroker::processCurrentSubpath(), QTextControl::processEvent(), QConicalGradient::QConicalGradient(), QKdPointFinder::QKdPointFinder(), QLinearGradient::QLinearGradient(), qMapGradientToRect(), QPainterPath::QPainterPath(), QRadialGradient::QRadialGradient(), QRectF::QRectF(), qt_find_ellipse_coords(), qt_isExtendedRadialGradient(), qt_mac_compose_path(), qt_painterpath_check_crossing(), qt_painterpath_isect_curve(), qt_painterpath_isect_line(), qt_polygon_isect_line(), qt_stroke_side(), qt_vg_drawVGImageStencil(), QTextLineItemIterator::QTextLineItemIterator(), QPainterPath::quadTo(), QRasterizer::rasterizeLine(), QPanGestureRecognizer::recognize(), QSwipeGestureRecognizer::recognize(), QTextControlPrivate::rectForPosition(), QGraphicsItemGroup::removeFromGroup(), QCosmeticStroker::renderCubic(), QMacPinchGestureRecognizer::reset(), QDeclarativeFlickable::resizeContent(), QSvgPaintEngine::saveLinearGradientBrush(), QSvgPaintEngine::saveRadialGradientBrush(), QmlJSDebugger::ZoomTool::scaleView(), QGLEllipseMaskGenerator::screenRect(), QDeclarativeTextInputPrivate::sendMouseEventToInputContext(), QLineF::setAngle(), QRectF::setBottomLeft(), QRectF::setBottomRight(), QVGPaintEnginePrivate::setBrush(), QPainter::setBrushOrigin(), QVGPaintEnginePrivate::setBrushTransform(), QRadialGradient::setCenter(), QConicalGradient::setCenter(), QPrintPreviewWidgetPrivate::setCurrentPage(), QCoreGraphicsPaintEnginePrivate::setFillBrush(), QLinearGradient::setFinalStop(), QRadialGradient::setFocalPoint(), QLineF::setLength(), QGraphicsItemAnimation::setPosAt(), QGraphicsItemPrivate::setPosHelper(), QDeclarativeItemPrivate::setPosHelper(), QTextLine::setPosition(), QmlJSDebugger::LiveSelectionRectangle::setRect(), QLinearGradient::setStart(), QRectF::setTopLeft(), QRectF::setTopRight(), QGraphicsItem::setTransformOriginPoint(), QGLShaderProgram::setUniformValue(), QSpanData::setup(), QDeclarativeTextPrivate::setupTextLayout(), QDeclarativePointFValueType::setValue(), QGraphicsItem::setY(), snapTo26Dot6Grid(), splitPolygon(), QPaintEngineEx::stroke(), QRasterPaintEngine::stroke(), QStrokerOps::strokeEllipse(), QStrokerOps::strokePath(), QStrokerOps::strokePolygon(), QTessellator::tessellateRect(), QTest::toString(), QDeclarativeParentAnimation::transition(), QPainterPath::translate(), QPainter::translate(), QRectF::translate(), QGLTrapezoid::translated(), QPainterPath::translated(), QRectF::translated(), QApplicationPrivate::translateTouchEvent(), QLineF::unitVector(), QX11PaintEngine::updateBrush(), QGL2PaintEngineExPrivate::updateBrushUniforms(), QOpenGLPaintEnginePrivate::updateGradient(), QDeclarativePathViewPrivate::updateItem(), QDeclarativePinchArea::updatePinch(), QDeclarativeFlipablePrivate::updateSceneTransformFromParent(), QGraphicsPixmapItemPrivate::updateShape(), QVGPaintEnginePrivate::vectorPathToVGPath(), QCommonStylePrivate::viewItemDrawText(), QGraphicsWidget::windowFrameSectionAt(), QGraphicsItem::x(), QLineF::x1(), QLineF::x2(), and QGraphicsDropShadowEffect::xOffset().

{
    return xp;
}

y()

qreal QPointF::y ( ) const

inline

Returns the y-coordinate of this point.

See also

setY(), ry()

Definition at line 287 of file qpoint.h.

Referenced by QFreetypeFace::addBitmapToPath(), QPdfEnginePrivate::addBrushPattern(), addCircle(), QPainterPath::addEllipse(), addGlyphToPath(), addLineTo(), QGL2PEXVertexArray::addPath(), QPathSegments::addPath(), QPainterPath::addPolygon(), addSelectedRegionsToPath(), QPainterPath::addText(), QGraphicsItemGroup::addToGroup(), QStyleHelper::angle(), QLineF::angle(), QPlainTextEditControl::blockBoundingRect(), boundingRect(), QPolygonF::boundingRect(), QSvgLine::bounds(), QRasterPaintEnginePrivate::brushMatrix(), QGraphicsView::centerOn(), QAccessibleTextWidget::characterRect(), QTessellatorPrivate::collectAndSortVertices(), comparePoints(), component(), computeAngle(), QRectF::contains(), QOutlineMapper::convertElements(), QPainter::PixmapFragment::create(), QTriangulatingStroker::cubicTo(), QPainterPath::cubicTo(), QOutlineMapper::curveTo(), QCoreGraphicsPaintEnginePrivate::devicePixelSize(), QGraphicsItem::deviceTransform(), QDeclarativeParentChangePrivate::doChange(), dot(), QDeclarativeTextLayout::draw(), QPixmapConvolutionFilter::draw(), QTextLayout::draw(), QSvgText::draw(), QTextLine::draw(), draw_text_item_win(), QRasterPaintEngine::drawBitmap(), QPaintEnginePrivate::drawBoxTextItem(), QVGPaintEngine::drawCachedGlyphs(), QRasterPaintEngine::drawCachedGlyphs(), QTextLayout::drawCursor(), QStyleHelper::drawDial(), QPainter::drawEllipse(), QTextDocumentLayoutPrivate::drawFrame(), QX11PaintEngine::drawFreetype(), QVGPaintEngine::drawImage(), QRasterPaintEngine::drawImage(), QRasterPaintEnginePrivate::drawImage(), QPainter::drawImage(), QGraphicsScenePrivate::drawItemHelper(), QCosmeticStroker::drawLine(), QCoreGraphicsPaintEngine::drawLines(), QVGPaintEngine::drawLines(), QOpenGLPaintEngine::drawLines(), QGLEllipseMaskGenerator::drawMask(), QCosmeticStroker::drawPath(), QWin32PrintEngine::drawPixmap(), QPainter::drawPixmap(), QCoreGraphicsPaintEngine::drawPoints(), QX11PaintEngine::drawPoints(), QCosmeticStroker::drawPoints(), QOpenGLPaintEngine::drawPoints(), QVGPaintEngine::drawPoints(), QPaintEngine::drawPoints(), QPaintEngineEx::drawPoints(), QPainter::drawPoints(), QVGPaintEngine::drawPolygon(), QOpenGLPaintEngine::drawPolygon(), QSvgPaintEngine::drawPolygon(), QPaintBufferEngine::drawPolygon(), QVGPaintEngine::drawRects(), QPainter::drawStaticText(), QPainter::drawText(), QEmulationPaintEngine::drawTextItem(), QAlphaPaintEngine::drawTextItem(), QCoreGraphicsPaintEngine::drawTextItem(), QPicturePaintEngine::drawTextItem(), QGL2PaintEngineEx::drawTextItem(), QOpenGLPaintEngine::drawTextItem(), QPdfEnginePrivate::drawTextItem(), QSvgPaintEngine::drawTextItem(), QPaintEngine::drawTextItem(), QRasterPaintEngine::drawTextItem(), QPdfBaseEnginePrivate::drawTextItem(), QPainter::drawTextItem(), drawTextItemDecoration(), QOpenGLPaintEnginePrivate::drawTiledImageAsPath(), QPSPrintEngine::drawTiledPixmap(), QCoreGraphicsPaintEngine::drawTiledPixmap(), QDirectFBPaintEnginePrivate::drawTiledPixmap(), QX11PaintEngine::drawTiledPixmap(), QOpenGLPaintEngine::drawTiledPixmap(), QVGPaintEngine::drawTiledPixmap(), QPaintEngine::drawTiledPixmap(), QRasterPaintEngine::drawTiledPixmap(), QPaintEngineEx::drawTiledPixmap(), QPainter::drawTiledPixmap(), drawVGImage(), QX11PaintEngine::drawXLFD(), QLineF::dy(), QOutlineMapper::endOutline(), QPlainTextEditPrivate::ensureVisible(), epsilonCompare(), QAbstractScrollArea::event(), QPlainTextEdit::event(), QPicture::exec(), QBlitterPaintEngine::fillRect(), QDirectFBPaintEngine::fillRect(), QVGPaintEngine::fillRect(), findCrossings(), flipPoint(), flowPosition(), QFixedPoint::fromPointF(), QBezier::fromPoints(), QGLRectMaskGenerator::generateTrapezoids(), QDeclarativeCompiler::genLiteralAssignment(), QStaticTextPrivate::get(), good_offset(), QDeclarativePathViewPrivate::handleMouseMoveEvent(), QDeclarativeFlickablePrivate::handleMouseMoveEvent(), QDeclarativePathViewPrivate::handleMousePressEvent(), QDeclarativeFlickablePrivate::handleMouseReleaseEvent(), QIntersectionFinder::hasIntersections(), QTextDocumentLayout::hitTest(), QPlainTextEditControl::hitTest(), QTextDocumentLayoutPrivate::hitTest(), QGraphicsSceneBspTree::initialize(), QTriangulator< T >::initialize(), QLineF::intersect(), isAbove(), QWingedEdge::isInside(), QLineF::isNull(), QGraphicsItem::itemTransform(), QStroker::joinPoints(), QTextDocumentLayoutPrivate::layoutBlock(), QLineF::length(), QIntersectionFinder::linesIntersect(), QPainterPath::lineTo(), QOutlineMapper::lineTo(), QMatrix::map(), QTransform::map(), QDeclarativeItem::mapFromItem(), QGraphicsItem::mapFromScene(), mapHomogeneous(), QMatrix4x4::mapRect(), QDeclarativeItem::mapToItem(), QGraphicsItem::mapToScene(), QGraphicsViewPrivate::mapToViewRect(), QBezier::midTangent(), QDeclarativeMouseArea::mouseMoveEvent(), QGraphicsItem::mouseMoveEvent(), QmlJSDebugger::ZoomTool::mouseReleaseEvent(), QRectF::moveBottomLeft(), QRectF::moveBottomRight(), QRectF::moveCenter(), QPainterPath::moveTo(), QOutlineMapper::moveTo(), QRectF::moveTo(), QRectF::moveTopLeft(), QRectF::moveTopRight(), QKdPointFinder::operator()(), operator*(), QTriangulator< T >::ComplexToSimple::Event::operator<(), QPdf::ByteStream::operator<<(), operator<<(), QVGPaintEnginePrivate::painterPathToVGPath(), QPlainTextEdit::paintEvent(), parsePathDataFast(), QPdf::patternForBrush(), QLineF::pointAt(), QDeclarativePathViewPrivate::pointNear(), PointToVector(), QGraphicsItemAnimation::posAt(), printPage(), QDashedStrokeProcessor::process(), QDashStroker::processCurrentSubpath(), QTextControl::processEvent(), QConicalGradient::QConicalGradient(), QKdPointFinder::QKdPointFinder(), QLinearGradient::QLinearGradient(), QPainterPath::QPainterPath(), QRadialGradient::QRadialGradient(), QRectF::QRectF(), qt_find_ellipse_coords(), qt_isExtendedRadialGradient(), qt_mac_compose_path(), qt_painterpath_check_crossing(), qt_painterpath_isect_curve(), qt_painterpath_isect_line(), qt_polygon_isect_line(), qt_stroke_side(), qt_vg_drawVGImageStencil(), QPainterPath::quadTo(), QRasterizer::rasterizeLine(), QPanGestureRecognizer::recognize(), QSwipeGestureRecognizer::recognize(), QTextControlPrivate::rectForPosition(), QGraphicsItemGroup::removeFromGroup(), QCosmeticStroker::renderCubic(), QMacPinchGestureRecognizer::reset(), QDeclarativeFlickable::resizeContent(), QSvgPaintEngine::saveLinearGradientBrush(), QSvgPaintEngine::saveRadialGradientBrush(), QmlJSDebugger::ZoomTool::scaleView(), QGLEllipseMaskGenerator::screenRect(), QTextEdit::scrollToAnchor(), QLineF::setAngle(), QRectF::setBottomLeft(), QRectF::setBottomRight(), QPainter::setBrushOrigin(), QVGPaintEnginePrivate::setBrushTransform(), QRadialGradient::setCenter(), QConicalGradient::setCenter(), QPrintPreviewWidgetPrivate::setCurrentPage(), QCoreGraphicsPaintEnginePrivate::setFillBrush(), QLinearGradient::setFinalStop(), QRadialGradient::setFocalPoint(), QLineF::setLength(), QGraphicsItemAnimation::setPosAt(), QGraphicsItemPrivate::setPosHelper(), QDeclarativeItemPrivate::setPosHelper(), QTextLine::setPosition(), QmlJSDebugger::LiveSelectionRectangle::setRect(), QLinearGradient::setStart(), QRectF::setTopLeft(), QRectF::setTopRight(), QGraphicsItem::setTransformOriginPoint(), QGLShaderProgram::setUniformValue(), QSpanData::setup(), QDeclarativeTextPrivate::setupTextLayout(), QDeclarativePointFValueType::setValue(), QGraphicsItem::setX(), snapTo26Dot6Grid(), splitPolygon(), QPaintEngineEx::stroke(), QRasterPaintEngine::stroke(), QStrokerOps::strokeEllipse(), QStrokerOps::strokePath(), QStrokerOps::strokePolygon(), QTessellator::tessellateRect(), QBezier::tForY(), QTest::toString(), QDeclarativeParentAnimation::transition(), QPainterPath::translate(), QPainter::translate(), QRectF::translate(), QGLTrapezoid::translated(), QPainterPath::translated(), QRectF::translated(), QApplicationPrivate::translateTouchEvent(), QLineF::unitVector(), QX11PaintEngine::updateBrush(), QGL2PaintEngineExPrivate::updateBrushUniforms(), QOpenGLPaintEnginePrivate::updateGradient(), QDeclarativePathViewPrivate::updateItem(), QDeclarativePinchArea::updatePinch(), QDeclarativeFlipablePrivate::updateSceneTransformFromParent(), QGraphicsPixmapItemPrivate::updateShape(), QVGPaintEnginePrivate::vectorPathToVGPath(), QCommonStylePrivate::viewItemDrawText(), QGraphicsWidget::windowFrameSectionAt(), QGraphicsItem::y(), QLineF::y1(), QLineF::y2(), and QGraphicsDropShadowEffect::yOffset().

{
    return yp;
}

Friends and Related Functions

operator!=

bool operator!= ( const QPointF &  p1, const QPointF &  p2  )

friend

Returns true if p1 is not equal to p2; otherwise returns false.

Definition at line 334 of file qpoint.h.

{
    return !qFuzzyIsNull(p1.xp - p2.xp) || !qFuzzyIsNull(p1.yp - p2.yp);
}

operator* [1/2]

const QPointF operator* ( qreal  factor, const QPointF &  point  )

friend

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Returns a copy of the given point, multiplied by the given factor.

Definition at line 354 of file qpoint.h.

{
    return QPointF(p.xp*c, p.yp*c);
}

operator* [2/2]

const QPointF operator* ( const QPointF &  point, qreal  factor  )

friend

Returns a copy of the given point, multiplied by the given factor.

See also

QPointF::operator*=()

Definition at line 349 of file qpoint.h.

{
    return QPointF(p.xp*c, p.yp*c);
}

operator+

const QPointF operator+ ( const QPointF &  p1, const QPointF &  p2  )

friend

Returns a QPointF object that is the sum of the given points, p1 and p2; each component is added separately.

See also

QPointF::operator+=()

Definition at line 339 of file qpoint.h.

{
    return QPointF(p1.xp+p2.xp, p1.yp+p2.yp);
}

operator- [1/2]

const QPointF operator- ( const QPointF &  p1, const QPointF &  p2  )

friend

Returns a QPointF object that is formed by subtracting p2 from p1; each component is subtracted separately.

See also

QPointF::operator-=()

Definition at line 344 of file qpoint.h.

{
    return QPointF(p1.xp-p2.xp, p1.yp-p2.yp);
}

operator- [2/2]

const QPointF operator- ( const QPointF &  point )

friend

Returns a QPointF object that is formed by changing the sign of both components of the given point.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Equivalent to {QPointF(0,0) - point}.

Definition at line 359 of file qpoint.h.

{
    return QPointF(-p.xp, -p.yp);
}

operator/

const QPointF operator/ ( const QPointF &  point, qreal  divisor  )

friend

Returns the QPointF object formed by dividing both components of the given point by the given divisor.

See also

QPointF::operator/=()

Definition at line 371 of file qpoint.h.

{
    return QPointF(p.xp/c, p.yp/c);
}

operator<<()

QDataStream & operator<< ( QDataStream &  stream, const QPointF &  point  )

related

Writes the given point to the given stream and returns a reference to the stream.

See also

{Serializing Qt Data Types}

Definition at line 849 of file qpoint.cpp.

Referenced by toPoint().

{
    s << double(p.x()) << double(p.y());
    return s;
}

operator==

bool operator== ( const QPointF &  p1, const QPointF &  p2  )

friend

Returns true if p1 is equal to p2; otherwise returns false.

Definition at line 329 of file qpoint.h.

{
    return qFuzzyIsNull(p1.xp - p2.xp) && qFuzzyIsNull(p1.yp - p2.yp);
}

operator>>()

QDataStream & operator>> ( QDataStream &  stream, QPointF &  point  )

related

Reads a point from the given stream into the given point and returns a reference to the stream.

See also

{Serializing Qt Data Types}

Definition at line 868 of file qpoint.cpp.

{
    double x, y;
    s >> x;
    s >> y;
    p.setX(qreal(x));
    p.setY(qreal(y));
    return s;
}

QMatrix

friend class QMatrix

friend

Definition at line 250 of file qpoint.h.

QTransform

friend class QTransform

friend

Definition at line 251 of file qpoint.h.

Properties

xp

qreal QPointF::xp

private

Definition at line 253 of file qpoint.h.

Referenced by isNull(), operator!=(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator-=(), operator/(), operator/=(), operator==(), rx(), setX(), toPoint(), and x().

yp

qreal QPointF::yp

private

Definition at line 254 of file qpoint.h.

Referenced by isNull(), operator!=(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator-=(), operator/(), operator/=(), operator==(), ry(), setY(), toPoint(), and y().

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

• /src/corelib/tools/qpoint.h
• /src/corelib/tools/qpoint.cpp