QPoint Class Reference

\inmodule QtCore\reentrant More...

#include <qpoint.h>

Collaboration diagram for QPoint:

Public Member Functions
constexpr	QPoint () noexcept
	Constructs a null point, i.e.
constexpr	QPoint (int xpos, int ypos) noexcept
	Constructs a point with the given coordinates (xpos, ypos).
constexpr bool	isNull () const noexcept
	Returns true if both the x and y coordinates are set to 0, otherwise returns false.
constexpr int	x () const noexcept
	Returns the x coordinate of this point.
constexpr int	y () const noexcept
	Returns the y coordinate of this point.
constexpr void	setX (int x) noexcept
	Sets the x coordinate of this point to the given x coordinate.
constexpr void	setY (int y) noexcept
	Sets the y coordinate of this point to the given y coordinate.
constexpr int	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.
constexpr QPoint	transposed () const noexcept
constexpr int &	rx () noexcept
	Returns a reference to the x coordinate of this point.
constexpr int &	ry () noexcept
	Returns a reference to the y coordinate of this point.
constexpr QPoint &	operator+= (const QPoint &p)
	Adds the given point to this point and returns a reference to this point.
constexpr QPoint &	operator-= (const QPoint &p)
	Subtracts the given point from this point and returns a reference to this point.
constexpr QPoint &	operator*= (float factor)
	Multiplies this point's coordinates by the given factor, and returns a reference to this point.
constexpr QPoint &	operator*= (double factor)
	Multiplies this point's coordinates by the given factor, and returns a reference to this point.
constexpr QPoint &	operator*= (int factor)
	Multiplies this point's coordinates by the given factor, and returns a reference to this point.
constexpr QPoint &	operator/= (qreal divisor)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Divides both x and y by the given divisor, and returns a reference to this point.
constexpr QPointF	toPointF () const noexcept

Static Public Member Functions
static constexpr int	dotProduct (const QPoint &p1, const QPoint &p2)

Friends
class	QTransform
constexpr bool	operator== (const QPoint &p1, const QPoint &p2) noexcept
	Returns true if p1 and p2 are equal; otherwise returns false.
constexpr bool	operator!= (const QPoint &p1, const QPoint &p2) noexcept
	Returns true if p1 and p2 are not equal; otherwise returns false.
constexpr QPoint	operator+ (const QPoint &p1, const QPoint &p2) noexcept
	Returns a QPoint object that is the sum of the given points, p1 and p2; each component is added separately.
constexpr QPoint	operator- (const QPoint &p1, const QPoint &p2) noexcept
	Returns a QPoint object that is formed by subtracting p2 from p1; each component is subtracted separately.
constexpr QPoint	operator* (const QPoint &p, float factor)
	Returns a copy of the given point multiplied by the given factor.
constexpr QPoint	operator* (const QPoint &p, double factor)
	Returns a copy of the given point multiplied by the given factor.
constexpr QPoint	operator* (const QPoint &p, int factor) noexcept
	Returns a copy of the given point multiplied by the given factor.
constexpr QPoint	operator* (float factor, const QPoint &p)
	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.
constexpr QPoint	operator* (double factor, const QPoint &p)
	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.
constexpr QPoint	operator* (int factor, const QPoint &p) noexcept
	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.
constexpr QPoint	operator+ (const QPoint &p) noexcept
constexpr QPoint	operator- (const QPoint &p) noexcept
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns a QPoint object that is formed by changing the sign of both components of the given point.
constexpr QPoint	operator/ (const QPoint &p, qreal c)
	Returns the QPoint formed by dividing both components of the given point by the given divisor.
template<std::size_t I, typename P , std::enable_if_t<(I< 2), bool > = true, std::enable_if_t< std::is_same_v< q20::remove_cvref_t< P >, QPoint >, bool > = true>
constexpr decltype(auto)	get (P &&p) noexcept

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

Detailed Description

\inmodule QtCore

\reentrant

The QPoint class defines a point in the plane using integer precision.

A point is specified by a x coordinate and an y coordinate which can be accessed using the x() and y() functions. The isNull() function returns true if both x and y are set to 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:

QPoint p;
 
p.setX(p.x() + 1);
p += QPoint(1, 0);
p.rx()++;

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

In addition, the QPoint class provides the manhattanLength() function which gives an inexpensive approximation of the length of the QPoint object interpreted as a vector. Finally, QPoint objects can be streamed as well as compared.

See also

QPointF, QPolygon

Definition at line 22 of file qpoint.h.

Constructor & Destructor Documentation

QPoint() [1/2]

constexpr QPoint::QPoint ( )

inlineconstexprnoexcept

Constructs a null point, i.e.

with coordinates (0, 0)

See also

isNull()

Definition at line 118 of file qpoint.h.

QPoint() [2/2]

constexpr QPoint::QPoint ( int  xpos, int  ypos  )

inlineconstexprnoexcept

Constructs a point with the given coordinates (xpos, ypos).

See also

setX(), setY()

Definition at line 120 of file qpoint.h.

Member Function Documentation

dotProduct()

static int QPoint::dotProduct ( const QPoint &  p1, const QPoint &  p2  )

inlinestaticconstexpr

Since

5.1

QPoint p( 3, 7);
QPoint q(-1, 4);
int dotProduct = QPoint::dotProduct(p, q);   // dotProduct becomes 25

Returns the dot product of p1 and p2.

Definition at line 51 of file qpoint.h.

References p1, and p2.

isNull()

constexpr bool QPoint::isNull ( ) const

inlineconstexprnoexcept

Returns true if both the x and y coordinates are set to 0, otherwise returns false.

Definition at line 122 of file qpoint.h.

Referenced by QGraphicsViewPrivate::canStartScrollingAt(), QRhiD3D11::enqueueSubresUpload(), QRhiGles2::enqueueSubresUpload(), QRhiMetal::enqueueSubresUpload(), QWindowSystemInterface::handleWheelEvent(), QRhiVulkan::prepareUploadSubres(), and QWaylandSurfacePrivate::surface_commit().

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manhattanLength()

int constexpr QPoint::manhattanLength ( ) const

inlineconstexpr

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.

For example:

QPoint oldPosition;
 
MyWidget::mouseMoveEvent(QMouseEvent *event)
{
    QPoint point = event->pos() - oldPosition;
    if (point.manhattanLength() > 3)
        // the mouse has moved more than 3 pixels since the oldPosition
}

This is a useful, and quick to calculate, approximation to the true length:

double trueLength = std::sqrt(std::pow(x(), 2) + std::pow(y(), 2));

The tradition of "Manhattan length" arises because such distances apply to travelers who can only travel on a rectangular grid, like the streets of Manhattan.

Definition at line 147 of file qpoint.h.

References qAbs().

Referenced by moveToVirtualScreen(), QTapGestureRecognizer::recognize(), and QTapAndHoldGestureRecognizer::recognize().

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operator*=() [1/3]

constexpr QPoint & QPoint::operator*= ( double  factor )

inlineconstexpr

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

For example:

QPoint p(-1, 4);
p *= 2.5;    // p becomes (-3, 10)

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

operator/=()

Definition at line 183 of file qpoint.h.

References qRound().

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operator*=() [2/3]

constexpr QPoint & QPoint::operator*= ( float  factor )

inlineconstexpr

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

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

operator/=()

Definition at line 176 of file qpoint.h.

References qRound().

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operator*=() [3/3]

constexpr QPoint & QPoint::operator*= ( int  factor )

inlineconstexpr

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

See also

operator/=()

Definition at line 190 of file qpoint.h.

operator+=()

constexpr QPoint & QPoint::operator+= ( const QPoint &  point )

inlineconstexpr

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

For example:

QPoint p( 3, 7);
QPoint q(-1, 4);
p += q;    // p becomes (2, 11)

See also

operator-=()

Definition at line 162 of file qpoint.h.

operator-=()

constexpr QPoint & QPoint::operator-= ( const QPoint &  point )

inlineconstexpr

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

For example:

QPoint p( 3, 7);
QPoint q(-1, 4);
p -= q;    // p becomes (4, 3)

See also

operator+=()

Definition at line 169 of file qpoint.h.

operator/=()

constexpr QPoint & QPoint::operator/= ( qreal  divisor )

inlineconstexpr

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Divides both x and y by the given divisor, and returns a reference to this point.

For example:

QPoint p(-3, 10);
p /= 2.5;           // p becomes (-1, 4)

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

operator*=()

Definition at line 197 of file qpoint.h.

References qRound().

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rx()

constexpr int & QPoint::rx ( )

inlineconstexprnoexcept

Returns a reference to the x coordinate of this point.

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

QPoint p(1, 2);
p.rx()--;   // p becomes (0, 2)

See also

x(), setX()

Definition at line 152 of file qpoint.h.

Referenced by QQuickTableViewPrivate::calculateTopLeft(), QWidgetResizeHandler::keyPressEvent(), makeDistanceField(), QGraphicsView::mapToScene(), QWidgetResizeHandler::mouseMoveEvent(), QQuickTableViewPrivate::normalizeSelection(), operator>>(), and QQuickTableViewPrivate::selectionRectangle().

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ry()

constexpr int & QPoint::ry ( )

inlineconstexprnoexcept

Returns a reference to the y coordinate of this point.

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

QPoint p(1, 2);
p.ry()++;   // p becomes (1, 3)

See also

y(), setY()

Definition at line 157 of file qpoint.h.

Referenced by QQuickTableViewPrivate::calculateTopLeft(), QWidgetResizeHandler::keyPressEvent(), makeDistanceField(), QWidgetResizeHandler::mouseMoveEvent(), QQuickTableViewPrivate::normalizeSelection(), operator>>(), and QQuickTableViewPrivate::selectionRectangle().

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setX()

constexpr void QPoint::setX ( int  x )

inlineconstexprnoexcept

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

See also

x(), setY()

Definition at line 137 of file qpoint.h.

Referenced by QWindowGeometrySpecification::applyTo(), QtWaylandClient::QWaylandIviShellIntegration::createShellSurface(), QSvgFont::draw(), QXcbWindow::handleButtonPressEvent(), QDateTimeEditPrivate::positionCalendarPopup(), HIDDeviceHandler::process_event(), QLibInputPointer::processAbsMotion(), QLibInputPointer::processAxis(), QLibInputPointer::processMotion(), QEvdevMouseHandler::readMouseData(), QPlatformCursorImage::set(), QPlatformCursorImage::set(), QLibInputPointer::setPos(), QComboBox::showPopup(), QWindowsMouseHandler::translateMouseEvent(), QWindowsPointerHandler::translateMouseEvent(), and QAndroidInputContext::updateSelectionHandles().

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setY()

constexpr void QPoint::setY ( int  y )

inlineconstexprnoexcept

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

See also

y(), setX()

Definition at line 142 of file qpoint.h.

Referenced by QWindowGeometrySpecification::applyTo(), QtWaylandClient::QWaylandIviShellIntegration::createShellSurface(), QXcbWindow::handleButtonPressEvent(), QAndroidInputContext::handleLocationChanged(), HIDDeviceHandler::process_event(), QLibInputPointer::processAbsMotion(), QLibInputPointer::processAxis(), QLibInputPointer::processMotion(), QEvdevMouseHandler::readMouseData(), QPlatformCursorImage::set(), QPlatformCursorImage::set(), and QLibInputPointer::setPos().

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toPointF()

constexpr QPointF QPoint::toPointF ( ) const

inlineconstexprnoexcept

Since

6.4

Returns this point as a point with floating point accuracy.

See also

QPointF::toPoint()

Definition at line 392 of file qpoint.h.

transposed()

QPoint::transposed ( ) const

inlineconstexprnoexcept

Since

5.14

Returns a point with x and y coordinates exchanged:

QPoint{1, 2}.transposed() // {2, 1}

See also

x(), y(), setX(), setY()

Definition at line 37 of file qpoint.h.

Referenced by QXcbWindow::handleButtonPressEvent().

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x()

constexpr int QPoint::x ( ) const

inlineconstexprnoexcept

Returns the x coordinate of this point.

See also

setX(), rx()

Definition at line 127 of file qpoint.h.

Referenced by QDialog::adjustPosition(), QQuickTableViewPrivate::TableEdgeLoadRequest::begin(), QPainter::begin(), QPolygon::boundingRect(), calcPosition(), QQuickTableViewPrivate::calculateTopLeft(), QQuickTableViewPrivate::cellIsValid(), QLine::center(), QLineF::center(), QDirectFBCursor::changeCursor(), QFbCursor::changeCursor(), QEglFSKmsGbmCursor::changeCursor(), QQuickDeliveryAgentPrivate::checkIfDoubleTapped(), clipStraightLine(), QListViewPrivate::closestIndex(), convolute(), QSizeGripPrivate::corner(), QWindowsOleDropSource::createCursors(), QWindowsCursor::createPixmapCursor(), QtWaylandClient::QWaylandIviShellIntegration::createShellSurface(), QLineEdit::cursorPositionAt(), QQuickDeliveryAgentPrivate::deliverTouchAsMouse(), QWidgetResizeHandler::doResize(), QXcbWindow::doStartSystemMoveResize(), QCocoaDrag::drag(), QQC2::QWindowsXPStyle::drawComplexControl(), QWindowsVistaStyle::drawComplexControl(), QMacStyle::drawControl(), QX11PaintEngine::drawPoints(), QQC2_NAMESPACE::QMacStyle::drawPrimitive(), QQC2::QCommonStyle::drawPrimitive(), QMacStyle::drawPrimitive(), QCommonStyle::drawPrimitive(), drawRectangle(), QX11PaintEngine::drawRects(), drawTextItemDecoration(), QLine::dx(), QLineF::dx(), QRhiGles2::enqueueResourceUpdates(), QRhiVulkan::enqueueResourceUpdates(), QRhiD3D11::enqueueSubresUpload(), QRhiMetal::enqueueSubresUpload(), QPlainTextEditPrivate::ensureCursorVisible(), QScrollArea::ensureVisible(), QScrollArea::ensureWidgetVisible(), QDockWidget::event(), QWindowsContext::findPlatformWindowAt(), QXcbDrag::findXdndAwareTarget(), QBackingStore::flush(), QGraphicsScenePrivate::gestureEventHandler(), QScreen::grabWindow(), QQuickTableViewHoverHandler::handleEventPoint(), QWidgetWindow::handleMouseEvent(), QWindowsWindow::handleNonClientHitTest(), QWindowSystemInterface::handleWheelEvent(), QQC2_NAMESPACE::QMacStyle::hitTestComplexControl(), QMacStyle::hitTestComplexControl(), QTreeView::indexAt(), QToolBarPrivate::initDrag(), QWidgetPrivate::invalidateBackingStore_resizeHelper(), invisibleMargins(), QLineF::isNull(), QQuickTableViewPrivate::layoutTopLeftItem(), QQuickVisualTestUtils::lerpPoints(), QQuickTableViewPrivate::loadInitialTable(), QHeaderView::logicalIndexAt(), makeDistanceField(), QTransform::map(), QMatrix4x4::map(), QTransform::map(), QWindowsGeometryHint::mapFromGlobal(), QMatrix4x4::mapRect(), QDoubleMatrix4x4::mapRect(), QPlainTextEditPrivate::mapToContents(), QTextEditPrivate::mapToContents(), QWindowsGeometryHint::mapToGlobal(), mapToGlobalTransform(), QQuickTreeView::modelIndex(), QQuickTableViewPrivate::modelIndexAtCell(), QScrollBar::mouseMoveEvent(), QSizeGrip::mouseMoveEvent(), QToolBarPrivate::mouseMoveEvent(), QWidgetResizeHandler::mouseMoveEvent(), QtPrivate::QColorWell::mouseMoveEvent(), QComboBoxPrivateScroller::mouseMoveEvent(), QDockWidgetPrivate::mouseMoveEvent(), QGraphicsView::mouseMoveEvent(), QtPrivate::QWellArray::mousePressEvent(), QScrollBar::mousePressEvent(), QXcbDrag::move(), QAbstractButtonPrivate::moveFocus(), QQuickTableViewPrivate::normalizeSelection(), operator<<(), QCursor::operator>>(), QtPrivate::QColorPicker::paintEvent(), QSliderPrivate::pick(), QImage::pixel(), QImage::pixelColor(), QImage::pixelIndex(), QMdiAreaPrivate::place(), QLineF::pointAt(), QMenuPrivate::popup(), QDateTimeEditPrivate::positionCalendarPopup(), QQuickTableView::positionViewAtCell(), QRhiVulkan::prepareUploadSubres(), HIDDeviceHandler::process_event(), QLibInputPointer::processMotion(), qt_gtk_menu_position_func(), qt_xcb_createCursorXRender(), QEglFSKmsScreen::rawGeometry(), QSvgIOHandler::read(), QPdfIOHandler::read(), QMdi::IconTiler::rearrange(), QWidgetPrivate::render_helper(), QWidgetPrivate::safeAreaMargins(), QQuickTableViewPrivate::selection(), QQuickTableViewPrivate::selectionRectangle(), QWaylandOutputPrivate::sendGeometry(), QWaylandOutput::setAvailableGeometry(), QQuickTableViewPrivate::setCurrentIndexFromKeyEvent(), QWidgetPrivate::setGeometry_sys(), QLineF::setLength(), QMdiSubWindowPrivate::setNewGeometry(), QHeaderView::setOffset(), QXcbWindow::setParent(), QImage::setPixel(), QImage::setPixelColor(), QPolygon::setPoint(), QEglFSKmsGbmCursor::setPos(), QWindowsCursor::setPos(), QXcbCursor::setPos(), QCocoaCursor::setPos(), QQuickTableViewPrivate::setSelectionEndPos(), QQuickTableViewPrivate::setSelectionStartPos(), QSGDefaultSpriteNode::setSheetSize(), QOpenGLShaderProgram::setUniformValue(), QComboBox::showPopup(), QWindowsPopupMenu::showPopup(), QMenu::showTearOffMenu(), QRhiNull::simulateTextureUpload(), QWaylandSurfacePrivate::surface_commit(), QPlainTextEdit::timerEvent(), QTextEdit::timerEvent(), glyph_metrics_t::transformed(), QWindowsMouseHandler::translateMouseEvent(), QWindowsPointerHandler::translateMouseEvent(), QColorDialogPrivate::updateColorLabelText(), QQuickTableViewPrivate::updateCurrentRowAndColumn(), QtAndroidInput::updateHandles(), QQuickTreeViewPrivate::updateRequiredProperties(), QAndroidInputContext::updateSelectionHandles(), QtWaylandClient::QWaylandEglWindow::updateSurface(), QQuickScreenInfo::virtualX(), QStyle::visualPos(), QQC2::QStyle::visualPos(), QApplication::widgetAt(), QWindowsSystemTrayIcon::winEvent(), QLine::x1(), QLineF::x1(), QLine::x2(), QLineF::x2(), and QWaylandXdgOutputV1Private::zxdg_output_v1_bind_resource().

y()

constexpr int QPoint::y ( ) const

inlineconstexprnoexcept

Returns the y coordinate of this point.

See also

setY(), ry()

Definition at line 132 of file qpoint.h.

Referenced by QDialog::adjustPosition(), QQuickTableViewPrivate::TableEdgeLoadRequest::begin(), QPainter::begin(), QPolygon::boundingRect(), calcPosition(), QQuickTableViewPrivate::calculateTopLeft(), QQuickTableViewPrivate::cellIsValid(), QLine::center(), QLineF::center(), QDirectFBCursor::changeCursor(), QFbCursor::changeCursor(), QEglFSKmsGbmCursor::changeCursor(), QQuickDeliveryAgentPrivate::checkIfDoubleTapped(), clipStraightLine(), QListViewPrivate::closestIndex(), convolute(), QSizeGripPrivate::corner(), QWindowsOleDropSource::createCursors(), QWindowsCursor::createPixmapCursor(), QtWaylandClient::QWaylandIviShellIntegration::createShellSurface(), QQuickDeliveryAgentPrivate::deliverTouchAsMouse(), QWidgetResizeHandler::doResize(), QXcbWindow::doStartSystemMoveResize(), QCocoaDrag::drag(), QQC2::QWindowsXPStyle::drawComplexControl(), QWindowsVistaStyle::drawComplexControl(), QMacStyle::drawControl(), QX11PaintEngine::drawPoints(), QQC2_NAMESPACE::QMacStyle::drawPrimitive(), QQC2::QCommonStyle::drawPrimitive(), QMacStyle::drawPrimitive(), QCommonStyle::drawPrimitive(), drawRectangle(), QX11PaintEngine::drawRects(), QLine::dy(), QLineF::dy(), QRhiGles2::enqueueResourceUpdates(), QRhiVulkan::enqueueResourceUpdates(), QRhiD3D11::enqueueSubresUpload(), QRhiMetal::enqueueSubresUpload(), QScrollArea::ensureWidgetVisible(), QDockWidget::event(), QWindowsContext::findPlatformWindowAt(), QXcbDrag::findXdndAwareTarget(), QBackingStore::flush(), QGraphicsScenePrivate::gestureEventHandler(), QScreen::grabWindow(), QQuickTableViewHoverHandler::handleEventPoint(), QAndroidInputContext::handleLocationChanged(), QWidgetWindow::handleMouseEvent(), QWindowsWindow::handleNonClientHitTest(), QWindowSystemInterface::handleWheelEvent(), QQC2_NAMESPACE::QMacStyle::hitTestComplexControl(), QMacStyle::hitTestComplexControl(), QTreeView::indexAt(), QToolBarPrivate::initDrag(), QWidgetPrivate::invalidateBackingStore_resizeHelper(), invisibleMargins(), QLineF::isNull(), QMenu::keyPressEvent(), QQuickTreeView::keyPressEvent(), QQuickTableViewPrivate::layoutTopLeftItem(), QQuickVisualTestUtils::lerpPoints(), QQuickTableViewPrivate::loadInitialTable(), QHeaderView::logicalIndexAt(), makeDistanceField(), QMatrix4x4::map(), QWindowsGeometryHint::mapFromGlobal(), QMatrix4x4::mapRect(), QDoubleMatrix4x4::mapRect(), QPlainTextEditPrivate::mapToContents(), QTextEditPrivate::mapToContents(), QWindowsGeometryHint::mapToGlobal(), mapToGlobalTransform(), QQuickTreeView::modelIndex(), QQuickTableViewPrivate::modelIndexAtCell(), QScrollBar::mouseMoveEvent(), QSizeGrip::mouseMoveEvent(), QToolBarPrivate::mouseMoveEvent(), QWidgetResizeHandler::mouseMoveEvent(), QtPrivate::QColorWell::mouseMoveEvent(), QComboBoxPrivateScroller::mouseMoveEvent(), QGraphicsView::mouseMoveEvent(), QtPrivate::QWellArray::mousePressEvent(), QScrollBar::mousePressEvent(), QXcbDrag::move(), QAbstractButtonPrivate::moveFocus(), QQuickTableViewPrivate::normalizeSelection(), operator<<(), QCursor::operator>>(), QtPrivate::QColorPicker::paintEvent(), QSliderPrivate::pick(), QImage::pixel(), QImage::pixelColor(), QImage::pixelIndex(), QMdiAreaPrivate::place(), QTipLabel::placeTip(), QLineF::pointAt(), QMenuPrivate::popup(), QDateTimeEditPrivate::positionCalendarPopup(), QQuickTableView::positionViewAtCell(), QRhiVulkan::prepareUploadSubres(), HIDDeviceHandler::process_event(), QLibInputPointer::processMotion(), QMenuSloppyState::processMouseEvent(), qt_gtk_menu_position_func(), qt_xcb_createCursorXRender(), QEglFSKmsScreen::rawGeometry(), QSvgIOHandler::read(), QPdfIOHandler::read(), QMdi::IconTiler::rearrange(), QWidgetPrivate::render_helper(), QWidgetPrivate::safeAreaMargins(), QQuickTableViewPrivate::selection(), QQuickTableViewPrivate::selectionRectangle(), QWaylandOutputPrivate::sendGeometry(), QWaylandOutput::setAvailableGeometry(), QQuickTableViewPrivate::setCurrentIndexFromKeyEvent(), QWidgetPrivate::setGeometry_sys(), QLineF::setLength(), QMdiSubWindowPrivate::setNewGeometry(), QHeaderView::setOffset(), QXcbWindow::setParent(), QImage::setPixel(), QImage::setPixelColor(), QPolygon::setPoint(), QEglFSKmsGbmCursor::setPos(), QWindowsCursor::setPos(), QXcbCursor::setPos(), QCocoaCursor::setPos(), QSplitter::setRubberBand(), QQuickTableViewPrivate::setSelectionEndPos(), QQuickTableViewPrivate::setSelectionStartPos(), QSGDefaultSpriteNode::setSheetSize(), QOpenGLShaderProgram::setUniformValue(), QComboBox::showPopup(), QCocoaMenu::showPopup(), QWindowsPopupMenu::showPopup(), QMenu::showTearOffMenu(), QRhiNull::simulateTextureUpload(), QQC2_NAMESPACE::QMacStyle::subElementRect(), QMacStyle::subElementRect(), QPlainTextEdit::timerEvent(), QTextEdit::timerEvent(), toBottomLeftRect(), toBottomLeftRect(), QColorDialogPrivate::updateColorLabelText(), QQuickTableViewPrivate::updateCurrentRowAndColumn(), QtAndroidInput::updateHandles(), QTabBarPrivate::updateMacBorderMetrics(), QToolBarLayout::updateMacBorderMetrics(), QQuickTreeViewPrivate::updateRequiredProperties(), QAndroidInputContext::updateSelectionHandles(), QtWaylandClient::QWaylandEglWindow::updateSurface(), QQuickScreenInfo::virtualY(), QStyle::visualPos(), QQC2::QStyle::visualPos(), QApplication::widgetAt(), QWindowsSystemTrayIcon::winEvent(), QLine::y1(), QLineF::y1(), QLine::y2(), QLineF::y2(), and QWaylandXdgOutputV1Private::zxdg_output_v1_bind_resource().

Friends And Related Symbol Documentation

get

template<std::size_t I, typename P , std::enable_if_t<(I< 2), bool > = true, std::enable_if_t< std::is_same_v< q20::remove_cvref_t< P >, QPoint >, bool > = true>

constexpr decltype(auto) get ( P &&  p )

friend

Definition at line 95 of file qpoint.h.

operator!=

bool QPoint::operator!= ( const QPoint &  p1, const QPoint &  p2  )

friend

Returns true if p1 and p2 are not equal; otherwise returns false.

Definition at line 56 of file qpoint.h.

operator* [1/6]

QPoint QPoint::operator* ( const QPoint &  point, double  factor  )

friend

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

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

QPoint::operator*=()

Definition at line 64 of file qpoint.h.

operator* [2/6]

QPoint QPoint::operator* ( const QPoint &  point, float  factor  )

friend

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

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

QPoint::operator*=()

Definition at line 62 of file qpoint.h.

operator* [3/6]

QPoint QPoint::operator* ( const QPoint &  point, int  factor  )

friend

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

See also

QPoint::operator*=()

Definition at line 66 of file qpoint.h.

operator* [4/6]

QPoint QPoint::operator* ( double  factor, const QPoint &  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.

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

QPoint::operator*=()

Definition at line 70 of file qpoint.h.

operator* [5/6]

QPoint QPoint::operator* ( float  factor, const QPoint &  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.

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

QPoint::operator*=()

Definition at line 68 of file qpoint.h.

operator* [6/6]

QPoint QPoint::operator* ( int  factor, const QPoint &  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.

See also

QPoint::operator*=()

Definition at line 72 of file qpoint.h.

operator+ [1/2]

QPoint QPoint::operator+ ( const QPoint &  point )

friend

Since

5.0

Returns point unmodified.

Definition at line 74 of file qpoint.h.

operator+ [2/2]

QPoint QPoint::operator+ ( const QPoint &  p1, const QPoint &  p2  )

friend

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

See also

QPoint::operator+=()

Definition at line 58 of file qpoint.h.

operator- [1/2]

QPoint QPoint::operator- ( const QPoint &  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 QPoint object that is formed by changing the sign of both components of the given point.

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

Definition at line 76 of file qpoint.h.

operator- [2/2]

Point QPoint::operator- ( const QPoint &  p1, const QPoint &  p2  )

friend

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

See also

QPoint::operator-=()

Definition at line 60 of file qpoint.h.

operator/

const QPoint QPoint::operator/ ( const QPoint &  point, qreal  divisor  )

friend

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

Note that the result is rounded to the nearest integer as points are held as integers. Use QPointF for floating point accuracy.

See also

QPoint::operator/=()

Definition at line 78 of file qpoint.h.

operator<<()

QDataStream & operator<< ( QDataStream &  stream, const QPoint &  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 371 of file qpoint.cpp.

operator==

bool QPoint::operator== ( const QPoint &  p1, const QPoint &  p2  )

friend

Returns true if p1 and p2 are equal; otherwise returns false.

Definition at line 54 of file qpoint.h.

operator>>()

QDataStream & operator>> ( QDataStream &  stream, QPoint &  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 390 of file qpoint.cpp.

QTransform

friend class QTransform

friend

Definition at line 87 of file qpoint.h.

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

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