QSize Class Reference

The QSize class defines the size of a two-dimensional object using integer point precision. More...

#include <qsize.h>

Public Functions
QSize	boundedTo (const QSize &) const
	Returns a size holding the minimum width and height of this size and the given otherSize. More...
QSize	expandedTo (const QSize &) const
	Returns a size holding the maximum width and height of this size and the given otherSize. More...
int	height () const
	Returns the height. More...
bool	isEmpty () const
	Returns true if either of the width and height is less than or equal to 0; otherwise returns false. More...
bool	isNull () const
	Returns true if both the width and height is 0; otherwise returns false. More...
bool	isValid () const
	Returns true if both the width and height is equal to or greater than 0; otherwise returns false. More...
QSize &	operator*= (qreal c)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Multiplies both the width and height by the given factor, and returns a reference to the size. More...
QSize &	operator+= (const QSize &)
	Adds the given size to this size, and returns a reference to this size. More...
QSize &	operator-= (const QSize &)
	Subtracts the given size from this size, and returns a reference to this size. More...
QSize &	operator/= (qreal c)
	Divides both the width and height by the given divisor, and returns a reference to the size. More...
	QSize ()
	Constructs a size with an invalid width and height (i. More...
	QSize (int w, int h)
	Constructs a size with the given width and height. More...
int &	rheight ()
	Returns a reference to the height. More...
int &	rwidth ()
	Returns a reference to the width. More...
void	scale (int w, int h, Qt::AspectRatioMode mode)
	Scales the size to a rectangle with the given width and height, according to the specified mode: More...
void	scale (const QSize &s, Qt::AspectRatioMode mode)
	Scales the size to a rectangle with the given size, according to the specified mode. More...
void	setHeight (int h)
	Sets the height to the given height. More...
void	setWidth (int w)
	Sets the width to the given width. More...
void	transpose ()
	Swaps the width and height values. More...
int	width () const
	Returns the width. More...

Properties
int	ht
int	wd

Friends
bool	operator!= (const QSize &, const QSize &)
	Returns true if s1 and s2 are different; otherwise returns false. More...
const QSize	operator* (const QSize &, qreal)
const QSize	operator* (qreal, const QSize &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. More...
const QSize	operator+ (const QSize &, const QSize &)
	Returns the sum of s1 and s2; each component is added separately. More...
const QSize	operator- (const QSize &, const QSize &)
	Returns s2 subtracted from s1; each component is subtracted separately. More...
const QSize	operator/ (const QSize &, qreal)
	Divides the given size by the given divisor, and returns the result rounded to the nearest integer. More...
bool	operator== (const QSize &, const QSize &)
	Returns true if s1 and s2 are equal; otherwise returns false. More...

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

Detailed Description

The QSize class defines the size of a two-dimensional object using integer point precision.

A size is specified by a width() and a height(). It can be set in the constructor and changed using the setWidth(), setHeight(), or scale() functions, or using arithmetic operators. A size can also be manipulated directly by retrieving references to the width and height using the rwidth() and rheight() functions. Finally, the width and height can be swapped using the transpose() function.

The isValid() function determines if a size is valid (a valid size has both width and height greater than zero). The isEmpty() function returns true if either of the width and height is less than, or equal to, zero, while the isNull() function returns true only if both the width and the height is zero.

Use the expandedTo() function to retrieve a size which holds the maximum height and width of this size and a given size. Similarly, the boundedTo() function returns a size which holds the minimum height and width of this size and a given size.

QSize objects can be streamed as well as compared.

See also

QSizeF, QPoint, QRect

Definition at line 53 of file qsize.h.

Constructors and Destructors

QSize() [1/2]

QSize::QSize ( )

inline

Constructs a size with an invalid width and height (i.

e., isValid() returns false).

See also

isValid()

Definition at line 111 of file qsize.h.

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

{ wd = ht = -1; }

QSize() [2/2]

QSize::QSize ( int  width, int  height  )

inline

Constructs a size with the given width and height.

See also

setWidth(), setHeight()

Definition at line 114 of file qsize.h.

{ wd = w; ht = h; }

Functions

boundedTo()

QSize QSize::boundedTo ( const QSize &  otherSize ) const

inline

Returns a size holding the minimum width and height of this size and the given otherSize.

See also

expandedTo(), scale()

Definition at line 192 of file qsize.h.

Referenced by QLayout::alignmentRect(), QMdiAreaPrivate::appendChild(), QLayout::closestAcceptableSize(), QItemDelegate::doLayout(), fixToolBarOrientation(), QDockAreaLayout::getGrid(), QTabWidget::heightForWidth(), QTabWidget::initStyleOption(), QGridLayout::maximumSize(), qSmartMinSize(), QToolBarAreaLayoutItem::realSizeHint(), QWidget::resize(), QWidgetItem::setGeometry(), QWidget::setGeometry(), QBoxLayoutPrivate::setupGeom(), QMdiArea::showEvent(), QDockWidgetLayout::sizeFromContent(), QScrollArea::sizeHint(), QWellArray::sizeHint(), QWidgetItem::sizeHint(), QTabWidget::sizeHint(), QWorkspaceChild::sizeHint(), QWidgetItemV2::updateCacheIfNecessary(), QScrollAreaPrivate::updateScrollBars(), and QCommonStylePrivate::viewItemLayout().

{
    return QSize(qMin(wd,otherSize.wd), qMin(ht,otherSize.ht));
}

expandedTo()

QSize QSize::expandedTo ( const QSize &  otherSize ) const

inline

Returns a size holding the maximum width and height of this size and the given otherSize.

See also

boundedTo(), scale()

Definition at line 187 of file qsize.h.

Referenced by QRenderRule::adjustSize(), QMdiAreaPrivate::appendChild(), QMenuBarPrivate::calcActionRects(), QWorkspace::cascade(), QLayout::closestAcceptableSize(), QStyleSheetStyle::drawComplexControl(), QDockAreaLayout::getGrid(), getNetWmState(), QTabWidget::heightForWidth(), QStackedLayout::minimumSize(), QGroupBox::minimumSizeHint(), QMdiSubWindow::minimumSizeHint(), QMdiArea::minimumSizeHint(), QMenuBar::minimumSizeHint(), QAbstractSpinBox::minimumSizeHint(), QTabWidget::minimumSizeHint(), QTabBar::minimumSizeHint(), QWidgetResizeHandler::mouseMoveEvent(), QStyleSheetStyle::positionRect(), qNormalizeRadii(), qSmartMaxSize(), qSmartMinSize(), QWorkspaceChild::QWorkspaceChild(), QToolBarAreaLayoutItem::realSizeHint(), QMdiAreaPrivate::rearrange(), QComboBoxPrivate::recomputeSizeHint(), QWidget::resize(), QMdiAreaPrivate::resizeToMinimumTileSize(), QMainWindowLayout::setGeometry(), QWidget::setGeometry(), QMdiSubWindowPrivate::setNewGeometry(), QMdiSubWindowPrivate::setNormalMode(), QBoxLayoutPrivate::setupGeom(), QMdiSubWindowPrivate::setWindowFlags(), QWorkspaceChild::showShaded(), QLabelPrivate::sizeForWidth(), QDockWidgetLayout::sizeFromContent(), QMacStyle::sizeFromContents(), QGtkStyle::sizeFromContents(), QStyleSheetStyle::sizeFromContents(), QCheckBox::sizeHint(), QScrollBar::sizeHint(), QColumnView::sizeHint(), QToolBoxButton::sizeHint(), QMdiSubWindow::sizeHint(), QDial::sizeHint(), QSlider::sizeHint(), QStackedLayout::sizeHint(), QMdiArea::sizeHint(), QMenuBar::sizeHint(), QAbstractSpinBox::sizeHint(), QWidgetItem::sizeHint(), QTabWidget::sizeHint(), QMenu::sizeHint(), DetailButton::sizeHint(), QTabBar::sizeHint(), QDateTimeEdit::sizeHint(), QSplitterHandle::sizeHint(), QWizard::sizeHint(), QWorkspaceChild::sizeHint(), QCommonStyle::subControlRect(), QWindowsMobileStyle::subControlRect(), QWindowsCEStyle::subControlRect(), QMotifStyle::subControlRect(), QWorkspace::tile(), QMenuPrivate::updateActionRects(), QWidgetItemV2::updateCacheIfNecessary(), and QScrollAreaPrivate::updateScrollBars().

{
    return QSize(qMax(wd,otherSize.wd), qMax(ht,otherSize.ht));
}

height()

int QSize::height ( ) const

inline

Returns the height.

See also

width(), setHeight()

Definition at line 129 of file qsize.h.

Referenced by QTextEditPrivate::_q_adjustScrollbars(), QWorkspacePrivate::_q_showOperationMenu(), QGLFramebufferObjectPool::acquire(), QLayout::activate(), QAxClientSite::activateObject(), QPixmapIconEngine::actualSize(), QIconLoaderEngine::actualSize(), QLayout::addChildWidget(), QGridLayoutPrivate::addData(), QGridLayoutPrivate::addHfwData(), QPushButtonPrivate::adjustedMenuPosition(), QWidgetPrivate::adjustedSize(), QRenderRule::adjustSize(), QWorkspaceChild::adjustToFullscreen(), QStyle::alignedRect(), QLayout::alignmentRect(), QDockAreaLayoutInfo::apply(), QApplicationPrivate::applyX11SpecificCommandLineArguments(), QMacStylePrivate::aquaSizeConstrain(), area(), areaDiff(), QFormLayoutPrivate::arrangeWidgets(), QBalloonTip::balloon(), QWorkspaceChild::baseSize(), basicSize(), QGL2PaintEngineEx::begin(), blitTexture(), QVGCompositionHelper::blitWindow(), QRenderRule::borderClip(), QRenderRule::boxSize(), QMenuBarPrivate::calcActionRects(), QWorkspace::cascade(), QLayout::closestAcceptableSize(), QMacStylePrivate::contentFitsInPushButton(), QRenderRule::contentsSize(), QOpenGLPaintEnginePrivate::copyDrawable(), QImageData::create(), QWidgetPrivate::create_sys(), QDirectFBScreen::createDFBSurface(), QStyleSheetStyle::defaultSize(), QPixmap::depth(), determineScreenSize(), QIconModeViewBase::doBatchedItemLayout(), documentSize(), QIconModeViewBase::doDynamicLayout(), QItemDelegate::doLayout(), QListModeViewBase::doStaticLayout(), QVGPixmapConvolutionFilter::draw(), QVGPixmapColorizeFilter::draw(), QVGPixmapDropShadowFilter::draw(), QVGPixmapBlurFilter::draw(), QAlphaPaintEnginePrivate::drawAlphaImage(), QStyleHelper::drawBorderPixmap(), QCommonStyle::drawControl(), QWindowsVistaStyle::drawControl(), QPlastiqueStyle::drawControl(), QMacStyle::drawControl(), QStyleSheetStyle::drawControl(), QOpenGLPaintEnginePrivate::drawItem(), QGraphicsScenePrivate::drawItemHelper(), QGLTrapezoidMaskGenerator::drawMask(), QGLEllipseMaskGenerator::drawMask(), QGL2PaintEngineEx::drawPixmapFragments(), QGL2PaintEngineExPrivate::drawPixmapFragments(), QWindowsVistaStyle::drawPrimitive(), QGL2PaintEngineExPrivate::drawTexture(), drawTexture(), QDirectFBPaintEnginePrivate::drawTiledPixmap(), QVistaHelper::drawTitleBar(), effectiveState(), QIconLoaderEngine::entryForSize(), QStatusBar::event(), QAxHostWidget::event(), QWorkspaceChild::eventFilter(), QVGPaintEngine::fillRegion(), QOpenGLPaintEnginePrivate::fillVertexArray(), QIconModeViewBase::filterDropEvent(), QToolBarAreaLayoutInfo::fitLayout(), QToolBarAreaLayout::fitLayout(), QMainWindowLayout::fixSizeInUnifiedToolbar(), QGLWindowSurface::flush(), QVideoSurfaceFormat::frameHeight(), QBitmap::fromData(), QGLPixmapData::fromData(), QGLPixmapData::fromFile(), generateBlurTexture(), QMdi::MinOverlapPlacer::getCandidatePlacements(), QAxServerBase::GetExtent(), QDockAreaLayout::getGrid(), QBBScreenEventHandler::handleTouchEvent(), QVideoFrame::height(), QCommandLinkButton::heightForWidth(), QMenuBar::heightForWidth(), QWidgetItemV2::heightForWidth(), QBoxLayoutItem::hfw(), QMainWindowLayout::hover(), QTreeView::indexRowSizeHint(), QColorDialogPrivate::init(), QGLPixelBufferPrivate::init(), QIconModeViewBase::initBspTree(), QMacStylePrivate::initComboboxBdi(), QIconModeViewBase::initDynamicLayout(), QGLWindowSurface::initializeOffscreenTexture(), initLayoutStruct(), QTabBarPrivate::initStyleBaseOption(), QWidgetPrivate::invalidateBuffer_resizeHelper(), QAxServerBase::Invoke(), QWidget::isEnabledToTLW(), isServerProcess(), QProgressDialogPrivate::layout(), QToolBarLayout::layoutActions(), QTabBarPrivate::layoutTabs(), QDeclarativeBorderImage::load(), QDirectFBPaintDevice::lockSurface(), make_widget_eventUPP(), make_win_eventUPP(), QShivaContext::makeCurrent(), QTransformedScreen::mapFromDevice(), QTransformedScreen::mapToDevice(), QListModeViewBase::mapToViewport(), QDockAreaLayoutInfo::maximumSize(), maybeRoundToNextPowerOfTwo(), menuBarHeightForWidth(), QGLPaintDevice::metric(), QBoxLayoutItem::mhfw(), QDockAreaLayoutInfo::minimumSize(), QToolBarAreaLayout::minimumSize(), QDockAreaLayout::minimumSize(), QMainWindowLayout::minimumSize(), QCommandLinkButton::minimumSizeHint(), QMdiSubWindow::minimumSizeHint(), QDialog::minimumSizeHint(), QMenuBar::minimumSizeHint(), QLabel::minimumSizeHint(), QTabBar::minimumSizeHint(), QListView::moveCursor(), nearest_gl_texture_size(), QWaylandEglWindow::newSurfaceCreated(), QWaylandWindow::newSurfaceCreated(), operator<<(), operator>>(), QTreeViewPrivate::paintAlternatingRowColors(), QGtkPainter::paintBox(), QGtkPainter::paintBoxGap(), QGraphicsWidget::paintWindowFrame(), QMacPrintEnginePrivate::paperSize(), parseGeometry(), QWSYellowSurface::permanentState(), perp(), QSplitterLayoutStruct::pick(), QSplitterPrivate::pick(), pick(), QCommonStyle::pixelMetric(), QMacStyle::pixelMetric(), QStyleSheetStyle::pixelMetric(), PixmapEntry::pixmap(), QPixmapIconEngine::pixmap(), QSvgIconEnginePrivate::pmcKey(), pmKey(), QMenu::popup(), QToolButtonPrivate::popupTimerDone(), QDateTimeEditPrivate::positionCalendarPopup(), QStyleSheetStyle::positionRect(), QGLPixmapBlurFilter::processGL(), QVideoSurfaceFormat::property(), QMacStylePrivate::pushButtonSizeFromContents(), PvrEglWindowSurface::PvrEglWindowSurface(), QDirectFbBlitter::QDirectFbBlitter(), qDrawBorder(), qHash(), qNormalizeRadii(), QPixmap::QPixmap(), QRect::QRect(), QRollEffect::QRollEffect(), qSmartMaxSize(), qSmartMinSize(), qt_aqua_get_known_size(), qt_aqua_guess_size(), qt_defaultDpiY(), qt_format_to_attrib_list(), qt_mac_widget_in_menu_eventHandler(), QtWndProc(), QGLMaskTextureCache::quadtreeFindAvailableLocation(), QGLMaskTextureCache::quadtreeFindExistingLocation(), QVNCDirtyMap::QVNCDirtyMap(), QWaylandShmBuffer::QWaylandShmBuffer(), QWaylandXCompositeBuffer::QWaylandXCompositeBuffer(), QWorkspaceChild::QWorkspaceChild(), QXcbShmImage::QXcbShmImage(), QSvgIOHandler::read(), read_jpeg_image(), QPFGlyphTree::readData(), readImage(), QGraphicsViewPrivate::recalculateContentSize(), QComboBoxPrivate::recomputeSizeHint(), QToolBarAreaLayout::rectHint(), QStatusBar::reformat(), QTextEditPrivate::relayoutDocument(), QDeclarativeBorderImage::requestFinished(), QCocoaWindowSurface::resize(), QBBRootWindow::resize(), QRubberBand::resize(), QListViewItem::resize(), QWidget::resize(), QXlibWindowSurface::resizeBuffer(), QColumnViewPreviewColumn::resizeEvent(), QListView::resizeEvent(), QWorkspaceChild::resizeEvent(), QMdiAreaPrivate::resizeToMinimumTileSize(), QAlphaWidget::run(), QPixmap::scaled(), QImage::scaled(), QmlJSDebugger::ZoomTool::scaleView(), QVGEGLWindowSurfaceDirect::scroll(), QHeaderView::sectionSizeFromContents(), QHeaderView::sectionSizeHint(), QPageSetupWidget::selectPrinter(), QWidget::setBaseSize(), QBlittablePixmapData::setBlittable(), QBBWindow::setBufferSize(), QHeaderView::setDefaultSectionSize(), QBoxLayout::setDirection(), QAxServerBase::SetExtent(), QWidget::setFixedSize(), QSplitterPrivate::setGeo(), QX11GLWindowSurface::setGeometry(), QX11WindowSurface::setGeometry(), QWidgetItem::setGeometry(), QStyleSheetStyle::setGeometry(), QWSLocalMemSurface::setGeometry(), QWSSharedMemSurface::setGeometry(), QDeclarativeBorderImage::setGridScaledImage(), QWidget::setMaximumSize(), QLayout::setMenuBar(), QWidget::setMinimumSize(), QMdiSubWindowPrivate::setNewGeometry(), QGLMaskTextureCache::setOffscreenSize(), QMacPrintEnginePrivate::setPaperSize(), QBBScreen::setRotation(), QListView::setSelection(), QRect::setSize(), QWidget::setSizeIncrement(), QTransformedScreen::setTransformation(), QGLShaderProgram::setUniformValue(), QWizardHeader::setup(), QBoxLayoutPrivate::setupGeom(), QGridLayoutPrivate::setupHfwLayoutData(), QFormLayoutPrivate::setupHfwLayoutData(), QFormLayoutPrivate::setupVerticalLayoutData(), QDeclarativeSizeValueType::setValue(), QMdiSubWindowPrivate::setWindowFlags(), QDialog::showExtension(), QCompleterPrivate::showPopup(), QDockWidgetLayout::sizeFromContent(), QWindowsVistaStyle::sizeFromContents(), QPlastiqueStyle::sizeFromContents(), QWindowsMobileStyle::sizeFromContents(), QCommonStyle::sizeFromContents(), QWindowsCEStyle::sizeFromContents(), QCleanlooksStyle::sizeFromContents(), QWindowsXPStyle::sizeFromContents(), QWindowsStyle::sizeFromContents(), QMotifStyle::sizeFromContents(), QMacStyle::sizeFromContents(), QGtkStyle::sizeFromContents(), QStyleSheetStyle::sizeFromContents(), QRadioButton::sizeHint(), QCheckBox::sizeHint(), QPushButton::sizeHint(), QScrollArea::sizeHint(), QToolBoxButton::sizeHint(), QWorkspace::sizeHint(), QToolButton::sizeHint(), QDialog::sizeHint(), QProgressDialog::sizeHint(), QMdiArea::sizeHint(), QMenuBar::sizeHint(), QDockWidgetTitleButton::sizeHint(), QVideoSurfaceFormat::sizeHint(), QMenu::sizeHint(), QDockAreaLayoutInfo::sizeHint(), QWizard::sizeHint(), QToolBarAreaLayout::sizeHint(), QDockAreaLayout::sizeHint(), QMainWindowLayout::sizeHint(), QTableView::sizeHintForRow(), QIconModeViewBase::snapToGrid(), QWidgetBackingStore::staticContents(), QCommonStyle::subControlRect(), QWindowsVistaStyle::subControlRect(), QWindowsXPStyle::subControlRect(), QWindowsMobileStyle::subControlRect(), QWindowsCEStyle::subControlRect(), QMotifStyle::subControlRect(), QGtkStyle::subControlRect(), QStyleSheetStyle::subControlRect(), QCommonStyle::subElementRect(), QMacStyle::subElementRect(), QStyleSheetStyle::subElementRect(), QWaylandReadbackGlxContext::swapBuffers(), QWaylandReadbackEglContext::swapBuffers(), QDockAreaLayoutInfo::tabContentRect(), QCommonStylePrivate::tabLayout(), QTabBar::tabSizeHint(), QItemDelegate::textRectangle(), QWorkspace::tile(), QTest::toString(), QLayout::totalMaximumSize(), QSplitterPrivate::trans(), QDirectFBPixmapData::transformed(), QETWidget::translateConfigEvent(), QStyleHelper::uniqueName(), uniqueName(), QMenuPrivate::updateActionRects(), ShaderEffectSource::updateBackbuffer(), QGL2PaintEngineExPrivate::updateBrushTexture(), QCalendarTextNavigator::updateDateLabel(), QOpenGLPaintEnginePrivate::updateDepthClip(), QOpenGLPaintEnginePrivate::updateFragmentProgramData(), QTableView::updateGeometries(), QTreeView::updateGeometries(), QGLWindowSurface::updateGeometry(), ShaderEffectItem::updateGeometry(), QAxServerBase::updateGeometry(), QWizardPrivate::updateMinMaxSizes(), ShaderEffect::updateRenderTargets(), QScrollAreaPrivate::updateScrollBars(), QTreeViewPrivate::updateScrollBars(), QMdiAreaPrivate::updateScrollBars(), QDeclarativeTextPrivate::updateSize(), QMessageBoxPrivate::updateSize(), ShaderEffectSource::updateSizeAndTexture(), QMdiAreaPrivate::updateTabBarGeometry(), QCommonListViewBase::updateVerticalScrollBar(), QListModeViewBase::updateVerticalScrollBar(), useScrollBar(), QSettingsPrivate::variantToString(), QCommonStylePrivate::viewItemLayout(), QCommonStylePrivate::viewItemSize(), and QPdfEnginePrivate::writePage().

{ return ht; }

isEmpty()

bool QSize::isEmpty ( ) const

inline

Returns true if either of the width and height is less than or equal to 0; otherwise returns false.

See also

isNull(), isValid()

Definition at line 120 of file qsize.h.

Referenced by QMenuBarPrivate::calcActionRects(), QIconModeViewBase::doDynamicLayout(), QGraphicsScenePrivate::drawItemHelper(), QGLPixmapData::fromData(), QGLPixmapData::fromFile(), QBBWindow::hasBuffers(), ShaderEffectSource::markSourceSizeDirty(), QWorkspaceChild::minimumSizeHint(), QPdfEnginePrivate::newPage(), QMdi::MinOverlapPlacer::place(), QSvgIOHandler::read(), read_jpeg_image(), QTreeViewPrivate::renderTreeToPixmapForAnimation(), QPixmap::scaled(), QImage::scaled(), QWSLocalMemSurface::setGeometry(), QWSSharedMemSurface::setGeometry(), QRasterPixmapData::setMask(), QPixmapData::setMask(), QWindowsVistaStyle::sizeFromContents(), QWindowsStyle::sizeFromContents(), QWindowsXPStyle::sizeFromContents(), QMotifStyle::sizeFromContents(), QDeclarativeView::sizeHint(), QWidgetBackingStore::staticContents(), QCommonStylePrivate::tabLayout(), QTabBar::tabSizeHint(), QDeclarativeTextPrivate::textLayoutImage(), QDirectFBPixmapData::transformed(), QMenuPrivate::updateActionRects(), ShaderEffectSource::updateBackbuffer(), ShaderEffect::updateRenderTargets(), ShaderEffectSource::updateSizeAndTexture(), and QPixmapIconEngine::virtual_hook().

{ return wd<1 || ht<1; }

isNull()

bool QSize::isNull ( ) const

inline

Returns true if both the width and height is 0; otherwise returns false.

See also

isValid(), isEmpty()

Definition at line 117 of file qsize.h.

Referenced by QPixmapIconEngine::actualSize(), QDockAreaLayoutInfo::apply(), QPixmapIconEngine::bestMatch(), QRenderRule::borderClip(), QScreen::compose(), QMacStyle::drawControl(), QDockAreaLayout::getGrid(), QDockAreaLayoutInfo::maximumSize(), QDockAreaLayoutInfo::minimumSize(), QMenuBar::minimumSizeHint(), QSvgIconEngine::pixmap(), QPixmapIconEngine::pixmap(), QWidgetPrivate::render_helper(), QListView::resizeEvent(), QMacWindowSurface::scroll(), QMdiSubWindowPrivate::setNormalMode(), QListView::setSelection(), QGraphicsProxyWidgetPrivate::setWidget_helper(), QStyleSheetStyle::sizeFromContents(), QWizard::sizeHint(), QDirectFBScreen::surfaceForWidget(), QDockAreaLayoutInfo::tabContentRect(), and QTabBar::tabSizeHint().

{ return wd==0 && ht==0; }

isValid()

bool QSize::isValid ( ) const

inline

Returns true if both the width and height is equal to or greater than 0; otherwise returns false.

See also

isNull(), isEmpty()

Definition at line 123 of file qsize.h.

Referenced by QWorkspace::addWindow(), QWidgetPrivate::adjustedSize(), QWidget::adjustSize(), QFormLayoutPrivate::arrangeWidgets(), QPixmapIconEngine::bestMatch(), QWorkspace::cascade(), QImageData::create(), QIconModeViewBase::doDynamicLayout(), QListViewPrivate::doItemsLayout(), QListModeViewBase::doStaticLayout(), QGraphicsScenePrivate::drawItemHelper(), QRenderRule::fixupBorder(), QDockAreaLayout::getGrid(), QSplitterLayoutStruct::getWidgetSize(), QListModeViewBase::indexToListViewItem(), QIconModeViewBase::initDynamicLayout(), QToolButton::initStyleOption(), QVideoSurfaceFormat::isValid(), QListViewPrivate::itemSize(), QMdiSubWindow::minimumSizeHint(), QAxWidget::minimumSizeHint(), QSplitter::minimumSizeHint(), QAxHostWidget::minimumSizeHint(), QWaylandEglWindow::newSurfaceCreated(), QMoviePrivate::next(), QTiffHandler::option(), QApplicationPrivate::qt_mac_apply_settings(), QSvgIOHandler::read(), QImageReader::read(), QComboBoxPrivate::recomputeSizeHint(), QAxServerBase::resize(), QMdiAreaPrivate::resizeToMinimumTileSize(), QGraphicsItem::scroll(), QMainWindow::setIconSize(), QToolBar::setIconSize(), QMdiSubWindowPrivate::setMaximizeMode(), QListView::setSelection(), QAxWidget::sizeHint(), QSplitter::sizeHint(), QMacStyle::styleHint(), QCommonStylePrivate::tabLayout(), QAxServerBase::updateGeometry(), QGraphicsProxyWidgetPrivate::updateProxyGeometryFromWidget(), QTreeViewPrivate::updateScrollBars(), QDeclarativeViewPrivate::updateSize(), and QApplicationPrivate::x11_apply_settings().

{ return wd>=0 && ht>=0; }

operator*=()

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

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Multiplies both the width and height by the given factor, and returns a reference to the size.

Note that the result is rounded to the nearest integer.

See also

scale()

Definition at line 153 of file qsize.h.

{ wd = qRound(wd*c); ht = qRound(ht*c); return *this; }

operator+=()

QSize & QSize::operator+= ( const QSize &  size )

inline

Adds the given size to this size, and returns a reference to this size.

For example:

QSize s( 3, 7);
QSize r(-1, 4);
s += r;

// s becomes (2,11)

Definition at line 147 of file qsize.h.

{ wd+=s.wd; ht+=s.ht; return *this; }

operator-=()

QSize & QSize::operator-= ( const QSize &  size )

inline

Subtracts the given size from this size, and returns a reference to this size.

For example:

QSize s( 3, 7);
QSize r(-1, 4);
s -= r;

// s becomes (4,3)

Definition at line 150 of file qsize.h.

{ wd-=s.wd; ht-=s.ht; return *this; }

operator/=()

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

inline

Divides both the width and height by the given divisor, and returns a reference to the size.

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

Note that the result is rounded to the nearest integer.

See also

QSize::scale()

Definition at line 174 of file qsize.h.

{
    Q_ASSERT(!qFuzzyIsNull(c));
    wd = qRound(wd/c); ht = qRound(ht/c);
    return *this;
}

rheight()

int & QSize::rheight ( )

inline

Returns a reference to the height.

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

QSize size(100, 10);
size.rheight() += 5;

// size becomes (100,15)

See also

rwidth(), setHeight()

Definition at line 144 of file qsize.h.

Referenced by QFormLayoutPrivate::calcSizeHints(), QDirectFBScreen::copyDFBSurface(), QIconModeViewBase::doDynamicLayout(), QDirectFBPixmapData::fill(), isFullUpdate(), QDockAreaLayoutInfo::maximumSize(), QAbstractScrollArea::maximumViewportSize(), QDockAreaLayoutInfo::minimumSize(), QToolBarAreaLayout::minimumSize(), QLabel::minimumSizeHint(), QSizeGrip::mouseMoveEvent(), operator>>(), QTipLabel::reuseTip(), rperp(), rpick(), QPixmap::scaled(), QImage::scaled(), QHeaderView::sectionSizeFromContents(), QDirectFBScreenCursor::set(), QAxServerBase::SetExtent(), QAxServerBase::SetObjectRects(), QWindowsVistaStyle::sizeFromContents(), QPlastiqueStyle::sizeFromContents(), QMacStyle::sizeFromContents(), QMenu::sizeHint(), QDockAreaLayoutInfo::sizeHint(), QToolBarAreaLayout::sizeHint(), QWorkspace::tile(), and QMdiAreaPrivate::updateScrollBars().

{ return ht; }

rwidth()

int & QSize::rwidth ( )

inline

Returns a reference to the width.

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

QSize size(100, 10);
size.rwidth() += 20;

// size becomes (120,10)

See also

rheight(), setWidth()

Definition at line 141 of file qsize.h.

Referenced by QFormLayoutPrivate::calcSizeHints(), QDirectFBScreen::copyDFBSurface(), QIconModeViewBase::doDynamicLayout(), QItemDelegate::doLayout(), QDirectFBPixmapData::fill(), isFullUpdate(), QDockAreaLayoutInfo::maximumSize(), QAbstractScrollArea::maximumViewportSize(), QDockAreaLayoutInfo::minimumSize(), QToolBarAreaLayout::minimumSize(), QLabel::minimumSizeHint(), operator>>(), QComboBoxPrivate::recomputeSizeHint(), rperp(), rpick(), QPixmap::scaled(), QImage::scaled(), QHeaderView::sectionSizeFromContents(), QDirectFBScreenCursor::set(), QAxServerBase::SetExtent(), QAxServerBase::SetObjectRects(), QWindowsVistaStyle::sizeFromContents(), QPlastiqueStyle::sizeFromContents(), QMotifStyle::sizeFromContents(), QMacStyle::sizeFromContents(), QMenu::sizeHint(), QDockAreaLayoutInfo::sizeHint(), QToolBarAreaLayout::sizeHint(), QMdiAreaPrivate::updateScrollBars(), and QCommonStylePrivate::viewItemLayout().

{ return wd; }

scale() [1/2]

void QSize::scale ( int  width, int  height, Qt::AspectRatioMode  mode  )

inline

Scales the size to a rectangle with the given width and height, according to the specified mode:

• If mode is Qt::IgnoreAspectRatio, the size is set to (width, height).

• If mode is Qt::KeepAspectRatio, the current size is scaled to a rectangle as large as possible inside (width, height), preserving the aspect ratio.
• If mode is Qt::KeepAspectRatioByExpanding, the current size is scaled to a rectangle as small as possible outside (width, height), preserving the aspect ratio.

Example:

QSize t1(10, 12);
t1.scale(60, 60, Qt::IgnoreAspectRatio);
// t1 is (60, 60)

QSize t2(10, 12);
t2.scale(60, 60, Qt::KeepAspectRatio);
// t2 is (50, 60)

QSize t3(10, 12);
t3.scale(60, 60, Qt::KeepAspectRatioByExpanding);
// t3 is (60, 72)

See also

setWidth(), setHeight()

Definition at line 138 of file qsize.h.

Referenced by QPixmapIconEngine::actualSize(), QSvgIconEngine::pixmap(), QPixmapIconEngine::pixmap(), QBBScreen::resizeTopLevelWindow(), QPixmap::scaled(), and QImage::scaled().

{ scale(QSize(w, h), mode); }

scale() [2/2]

void QSize::scale	(	const QSize &	size,
		Qt::AspectRatioMode	mode
	)

Scales the size to a rectangle with the given size, according to the specified mode.

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

Definition at line 236 of file qsize.cpp.

{
    if (mode == Qt::IgnoreAspectRatio || wd == 0 || ht == 0) {
        wd = s.wd;
        ht = s.ht;
    } else {
        bool useHeight;
        qint64 rw = qint64(s.ht) * qint64(wd) / qint64(ht);

        if (mode == Qt::KeepAspectRatio) {
            useHeight = (rw <= s.wd);
        } else { // mode == Qt::KeepAspectRatioByExpanding
            useHeight = (rw >= s.wd);
        }

        if (useHeight) {
            wd = rw;
            ht = s.ht;
        } else {
            ht = qint32(qint64(s.wd) * qint64(ht) / qint64(wd));
            wd = s.wd;
        }
    }
}

setHeight()

void QSize::setHeight ( int  height )

inline

Sets the height to the given height.

See also

rheight(), height(), setWidth()

Definition at line 135 of file qsize.h.

Referenced by QGLFramebufferObjectPool::acquire(), QLayout::activate(), QAxClientSite::activateObject(), QWidgetPrivate::adjustedSize(), QRenderRule::adjustSize(), QLayout::alignmentRect(), QRenderRule::boxSize(), QLayout::closestAcceptableSize(), QRenderRule::contentsSize(), QStyleSheetStyle::defaultSize(), documentSize(), QItemDelegate::doLayout(), QWindowsVistaStyle::drawControl(), QProgressDialogPrivate::layout(), QGridLayout::maximumSize(), QBoxLayout::maximumSize(), QToolBarAreaLayout::minimumSize(), QCommandLinkButton::minimumSizeHint(), QSlider::minimumSizeHint(), QMenuBar::minimumSizeHint(), QMenu::popup(), QStyleSheetStyle::positionRect(), QMacStylePrivate::pushButtonSizeFromContents(), qSmartMaxSize(), qSmartMinSize(), qt_aqua_get_known_size(), readImage(), QToolBarAreaLayoutItem::realSizeHint(), QComboBoxPrivate::recomputeSizeHint(), QDeclarativeViewPrivate::rootObjectSize(), QWidgetItem::setGeometry(), QSvgTinyDocument::setHeight(), QDeclarativeSizeValueType::setHeight(), QMdiSubWindowPrivate::setMaximizeMode(), QMdiSubWindowPrivate::setNormalMode(), QGridLayoutPrivate::setupHfwLayoutData(), QDockWidgetLayout::sizeFromContent(), QWindowsVistaStyle::sizeFromContents(), QPlastiqueStyle::sizeFromContents(), QWindowsMobileStyle::sizeFromContents(), QCommonStyle::sizeFromContents(), QWindowsCEStyle::sizeFromContents(), QCleanlooksStyle::sizeFromContents(), QWindowsStyle::sizeFromContents(), QWindowsXPStyle::sizeFromContents(), QMacStyle::sizeFromContents(), QGtkStyle::sizeFromContents(), QStyleSheetStyle::sizeFromContents(), QCommandLinkButton::sizeHint(), QScrollArea::sizeHint(), QMenuBar::sizeHint(), QWidgetItem::sizeHint(), QMenu::sizeHint(), QWizard::sizeHint(), QToolBarAreaLayout::sizeHint(), QCommonStyle::subControlRect(), QWindowsMobileStyle::subControlRect(), QWindowsCEStyle::subControlRect(), QCleanlooksStyle::subControlRect(), QMotifStyle::subControlRect(), QGtkStyle::subControlRect(), QLayout::totalSizeHint(), QETWidget::translateConfigEvent(), QMenuPrivate::updateActionRects(), QAxServerBase::updateGeometry(), QWizardPrivate::updateMinMaxSizes(), ShaderEffectSource::updateSizeAndTexture(), and QCommonStylePrivate::viewItemLayout().

{ ht = h; }

setWidth()

void QSize::setWidth ( int  width )

inline

Sets the width to the given width.

See also

rwidth(), width(), setHeight()

Definition at line 132 of file qsize.h.

Referenced by QGLFramebufferObjectPool::acquire(), QLayout::activate(), QAxClientSite::activateObject(), QWidgetPrivate::adjustedSize(), QMenuPrivate::adjustMenuSizeForScreen(), QRenderRule::adjustSize(), QLayout::alignmentRect(), QRenderRule::boxSize(), QRenderRule::contentsSize(), QStyleSheetStyle::defaultSize(), QWindowsVistaStyle::drawControl(), QWindowsVistaStyle::drawPrimitive(), QListModeViewBase::indexToListViewItem(), QGridLayout::maximumSize(), QBoxLayout::maximumSize(), QToolBarAreaLayout::minimumSize(), QSlider::minimumSizeHint(), QMenuBar::minimumSizeHint(), QStyleSheetStyle::positionRect(), QMacStylePrivate::pushButtonSizeFromContents(), qSmartMaxSize(), qSmartMinSize(), qt_aqua_get_known_size(), readImage(), QToolBarAreaLayoutItem::realSizeHint(), QComboBoxPrivate::recomputeSizeHint(), QDeclarativeViewPrivate::rootObjectSize(), QWidgetItem::setGeometry(), QMdiSubWindowPrivate::setMaximizeMode(), QMdiSubWindowPrivate::setNormalMode(), QSvgTinyDocument::setWidth(), QDeclarativeSizeValueType::setWidth(), QDockWidgetLayout::sizeFromContent(), QCommonStyle::sizeFromContents(), QCleanlooksStyle::sizeFromContents(), QWindowsStyle::sizeFromContents(), QMotifStyle::sizeFromContents(), QMacStyle::sizeFromContents(), QGtkStyle::sizeFromContents(), QStyleSheetStyle::sizeFromContents(), QCommandLinkButton::sizeHint(), QScrollArea::sizeHint(), QToolButton::sizeHint(), QFontComboBox::sizeHint(), QMenuBar::sizeHint(), QVideoSurfaceFormat::sizeHint(), QWidgetItem::sizeHint(), QMenu::sizeHint(), QWizard::sizeHint(), QToolBarAreaLayout::sizeHint(), QCommonStyle::subControlRect(), QWindowsMobileStyle::subControlRect(), QWindowsCEStyle::subControlRect(), QCleanlooksStyle::subControlRect(), QMotifStyle::subControlRect(), QGtkStyle::subControlRect(), QETWidget::translateConfigEvent(), QMenuPrivate::updateActionRects(), QWidgetItemV2::updateCacheIfNecessary(), updateFormLayoutItem(), QAxServerBase::updateGeometry(), QWizardPrivate::updateMinMaxSizes(), QDeclarativeViewPrivate::updateSize(), and ShaderEffectSource::updateSizeAndTexture().

{ wd = w; }

transpose()

void QSize::transpose

(

)

Swaps the width and height values.

See also

setWidth(), setHeight()

Definition at line 196 of file qsize.cpp.

Referenced by QCommonStyle::drawControl(), QWindowsVistaStyle::drawControl(), QPlastiqueStyle::drawControl(), QWindowsMobileStyle::drawControl(), QCleanlooksStyle::drawControl(), QWindowsXPStyle::drawControl(), QWindowsStyle::drawControl(), QGtkStyle::drawControl(), QMacStyle::drawControl(), QStyleSheetStyle::drawControl(), QMainWindowTabBar::event(), QBBScreen::QBBScreen(), QMacStyle::sizeFromContents(), QProgressBar::sizeHint(), QCommonStyle::subElementRect(), and QMacStyle::subElementRect().

{
    int tmp = wd;
    wd = ht;
    ht = tmp;
}

width()

int QSize::width ( ) const

inline

Returns the width.

See also

height(), setWidth()

Definition at line 126 of file qsize.h.

Referenced by QTextEditPrivate::_q_adjustScrollbars(), QWorkspacePrivate::_q_showOperationMenu(), QCalendarWidgetPrivate::_q_yearClicked(), QGLFramebufferObjectPool::acquire(), QLayout::activate(), QAxClientSite::activateObject(), QPixmapIconEngine::actualSize(), QIconLoaderEngine::actualSize(), QLayout::addChildWidget(), QGridLayoutPrivate::addData(), QPushButtonPrivate::adjustedMenuPosition(), QWidgetPrivate::adjustedSize(), QRenderRule::adjustSize(), QStyle::alignedRect(), QLayout::alignmentRect(), QDockAreaLayoutInfo::apply(), QApplicationPrivate::applyX11SpecificCommandLineArguments(), QMacStylePrivate::aquaSizeConstrain(), area(), areaDiff(), QFormLayoutPrivate::arrangeWidgets(), QBalloonTip::balloon(), basicSize(), QGL2PaintEngineEx::begin(), blitTexture(), QRenderRule::borderClip(), QRenderRule::boxSize(), QMenuBarPrivate::calcActionRects(), QWorkspace::cascade(), QLayout::closestAcceptableSize(), QComboBoxPrivate::computeWidthHint(), QMacStylePrivate::contentFitsInPushButton(), QRenderRule::contentsSize(), QOpenGLPaintEnginePrivate::copyDrawable(), QImageData::create(), QWidgetPrivate::create_sys(), QColumnViewPrivate::createColumn(), QDirectFBScreen::createDFBSurface(), QStyleSheetStyle::defaultSize(), QPixmap::depth(), determineScreenSize(), QIconModeViewBase::doBatchedItemLayout(), QIconModeViewBase::doDynamicLayout(), QItemDelegate::doLayout(), QLayoutPrivate::doResize(), QListModeViewBase::doStaticLayout(), QVGPixmapConvolutionFilter::draw(), QVGPixmapColorizeFilter::draw(), QVGPixmapDropShadowFilter::draw(), QVGPixmapBlurFilter::draw(), QAlphaPaintEnginePrivate::drawAlphaImage(), QStyleHelper::drawBorderPixmap(), QCommonStyle::drawControl(), QWindowsVistaStyle::drawControl(), QPlastiqueStyle::drawControl(), QWindowsXPStyle::drawControl(), QStyleSheetStyle::drawControl(), QGraphicsScenePrivate::drawItemHelper(), QGL2PaintEngineEx::drawPixmapFragments(), QGL2PaintEngineExPrivate::drawPixmapFragments(), QWindowsVistaStyle::drawPrimitive(), QGL2PaintEngineExPrivate::drawTexture(), drawTexture(), QDirectFBPaintEnginePrivate::drawTiledPixmap(), effectiveState(), QIconLoaderEngine::entryForSize(), QAxHostWidget::event(), QMainWindowTabBar::event(), QMenuBar::eventFilter(), QTabBarPrivate::extraWidth(), QIconModeViewBase::filterDropEvent(), QToolBarAreaLayoutInfo::fitLayout(), QToolBarAreaLayout::fitLayout(), QMainWindowLayout::fixSizeInUnifiedToolbar(), QGLWindowSurface::flush(), QVideoSurfaceFormat::frameWidth(), QBitmap::fromData(), QGLPixmapData::fromData(), QGLPixmapData::fromFile(), generateBlurTexture(), QMdi::MinOverlapPlacer::getCandidatePlacements(), QAxServerBase::GetExtent(), QDockAreaLayout::getGrid(), QComboMenuDelegate::getStyleOption(), handleSizeAttribute(), QBBScreenEventHandler::handleTouchEvent(), QTabWidget::heightForWidth(), QWidgetItemV2::heightForWidth(), QMainWindowLayout::hover(), QListModeViewBase::indexToListViewItem(), QColorDialogPrivate::init(), QGLPixelBufferPrivate::init(), QIconModeViewBase::initBspTree(), QIconModeViewBase::initDynamicLayout(), QGLWindowSurface::initializeOffscreenTexture(), QTabBarPrivate::initStyleBaseOption(), QTabWidget::initStyleOption(), QWidgetPrivate::invalidateBuffer_resizeHelper(), QAxServerBase::Invoke(), QWidget::isEnabledToTLW(), isServerProcess(), QProgressDialogPrivate::layout(), QToolBarLayout::layoutActions(), QMessageBoxPrivate::layoutMinimumWidth(), QTabBarPrivate::layoutTabs(), QDeclarativeBorderImage::load(), QDirectFBPaintDevice::lockSurface(), make_widget_eventUPP(), make_win_eventUPP(), QShivaContext::makeCurrent(), QTransformedScreen::mapFromDevice(), QTransformedScreen::mapToDevice(), QListModeViewBase::mapToViewport(), QDockAreaLayoutInfo::maximumSize(), maybeRoundToNextPowerOfTwo(), QMenuBarPrivate::menuRect(), QGLPaintDevice::metric(), QDockAreaLayoutInfo::minimumSize(), QToolBarAreaLayout::minimumSize(), QDockAreaLayout::minimumSize(), QMainWindowLayout::minimumSize(), QMdiSubWindow::minimumSizeHint(), QMenuBar::minimumSizeHint(), QColumnViewGrip::mouseDoubleClickEvent(), QListView::moveCursor(), nearest_gl_texture_size(), QWaylandEglWindow::newSurfaceCreated(), QWaylandWindow::newSurfaceCreated(), operator<<(), operator>>(), QFontFamilyDelegate::paint(), QGtkPainter::paintBox(), QGtkPainter::paintBoxGap(), QListView::paintEvent(), QFileDialogComboBox::paintEvent(), QGraphicsWidget::paintWindowFrame(), QMacPrintEnginePrivate::paperSize(), parseGeometry(), QWSYellowSurface::permanentState(), perp(), QSplitterLayoutStruct::pick(), QSplitterPrivate::pick(), pick(), QCommonStyle::pixelMetric(), QMacStyle::pixelMetric(), QStyleSheetStyle::pixelMetric(), PixmapEntry::pixmap(), QPixmapIconEngine::pixmap(), QSvgIconEnginePrivate::pmcKey(), pmKey(), QMenu::popup(), QToolButtonPrivate::popupTimerDone(), QDateTimeEditPrivate::positionCalendarPopup(), QStyleSheetStyle::positionRect(), QGLPixmapBlurFilter::processGL(), QVideoSurfaceFormat::property(), QMacStylePrivate::pushButtonSizeFromContents(), PvrEglWindowSurface::PvrEglWindowSurface(), QBalloonTip::QBalloonTip(), QDirectFbBlitter::QDirectFbBlitter(), qDrawBorder(), qHash(), qNormalizeRadii(), QPixmap::QPixmap(), QRect::QRect(), QRollEffect::QRollEffect(), qSmartMaxSize(), qSmartMinSize(), qt_aqua_get_known_size(), qt_aqua_guess_size(), qt_defaultDpiX(), qt_format_to_attrib_list(), qt_mac_widget_in_menu_eventHandler(), QGLMaskTextureCache::quadtreeFindAvailableLocation(), QGLMaskTextureCache::quadtreeFindExistingLocation(), QVNCDirtyMap::QVNCDirtyMap(), QWaylandShmBuffer::QWaylandShmBuffer(), QWaylandXCompositeBuffer::QWaylandXCompositeBuffer(), QWorkspaceChild::QWorkspaceChild(), QXcbShmImage::QXcbShmImage(), QSvgIOHandler::read(), read_jpeg_image(), readImage(), QGraphicsViewPrivate::recalculateContentSize(), QComboBoxPrivate::recomputeSizeHint(), QToolBarAreaLayout::rectHint(), QDeclarativeBorderImage::requestFinished(), QCocoaWindowSurface::resize(), QBBRootWindow::resize(), QRubberBand::resize(), QListViewItem::resize(), QWidget::resize(), QXlibWindowSurface::resizeBuffer(), QColumnViewPreviewColumn::resizeEvent(), QListView::resizeEvent(), QWizard::resizeEvent(), QPlainTextEdit::resizeEvent(), QTextEdit::resizeEvent(), QMdiAreaPrivate::resizeToMinimumTileSize(), QAlphaWidget::run(), QPixmap::scaled(), QImage::scaled(), QmlJSDebugger::ZoomTool::scaleView(), QColumnView::scrollTo(), QHeaderView::sectionSizeFromContents(), QHeaderView::sectionSizeHint(), QPageSetupWidget::selectPrinter(), QWidget::setBaseSize(), QBlittablePixmapData::setBlittable(), QBBWindow::setBufferSize(), QHeaderView::setDefaultSectionSize(), QBoxLayout::setDirection(), QAxServerBase::SetExtent(), QWidget::setFixedSize(), QSplitterPrivate::setGeo(), QX11GLWindowSurface::setGeometry(), QX11WindowSurface::setGeometry(), QBoxLayout::setGeometry(), QWidgetItem::setGeometry(), QStyleSheetStyle::setGeometry(), QWSLocalMemSurface::setGeometry(), QWSSharedMemSurface::setGeometry(), QDeclarativeBorderImage::setGridScaledImage(), QWidget::setMaximumSize(), QWidget::setMinimumSize(), QMdiSubWindowPrivate::setNewGeometry(), QGLMaskTextureCache::setOffscreenSize(), QMacPrintEnginePrivate::setPaperSize(), QBBScreen::setRotation(), QListView::setSelection(), QRect::setSize(), QWidget::setSizeIncrement(), QTransformedScreen::setTransformation(), QGLShaderProgram::setUniformValue(), QBoxLayoutPrivate::setupGeom(), QFormLayoutPrivate::setupHorizontalLayoutData(), QFormLayoutPrivate::setupVerticalLayoutData(), QUrlModel::setUrl(), QDeclarativeSizeValueType::setValue(), QMdiSubWindowPrivate::setWindowFlags(), QDialog::showExtension(), QLabelPrivate::sizeForWidth(), QDockWidgetLayout::sizeFromContent(), QWindowsMobileStyle::sizeFromContents(), QCommonStyle::sizeFromContents(), QWindowsCEStyle::sizeFromContents(), QCleanlooksStyle::sizeFromContents(), QWindowsStyle::sizeFromContents(), QMotifStyle::sizeFromContents(), QMacStyle::sizeFromContents(), QGtkStyle::sizeFromContents(), QStyleSheetStyle::sizeFromContents(), QRadioButton::sizeHint(), QCheckBox::sizeHint(), QCommandLinkButton::sizeHint(), QPushButton::sizeHint(), QScrollArea::sizeHint(), QToolBoxButton::sizeHint(), QWorkspace::sizeHint(), QToolButton::sizeHint(), QProgressDialog::sizeHint(), QMdiArea::sizeHint(), QMenuBar::sizeHint(), QDockWidgetTitleButton::sizeHint(), QVideoSurfaceFormat::sizeHint(), QMenu::sizeHint(), QDockAreaLayoutInfo::sizeHint(), QWizard::sizeHint(), QToolBarAreaLayout::sizeHint(), QDockAreaLayout::sizeHint(), QMainWindowLayout::sizeHint(), QFileDialogTreeView::sizeHint(), QTableView::sizeHintForColumn(), QTreeView::sizeHintForColumn(), QIconModeViewBase::snapToGrid(), QWidgetBackingStore::staticContents(), QCommonStyle::subControlRect(), QWindowsVistaStyle::subControlRect(), QWindowsXPStyle::subControlRect(), QWindowsMobileStyle::subControlRect(), QWindowsCEStyle::subControlRect(), QCleanlooksStyle::subControlRect(), QMotifStyle::subControlRect(), QGtkStyle::subControlRect(), QStyleSheetStyle::subControlRect(), QCommonStyle::subElementRect(), QMacStyle::subElementRect(), QStyleSheetStyle::subElementRect(), QWaylandReadbackEglContext::swapBuffers(), QWaylandReadbackGlxContext::swapBuffers(), QDockAreaLayoutInfo::tabContentRect(), QCommonStylePrivate::tabLayout(), QTabBar::tabSizeHint(), QItemDelegatePrivate::textLayoutBounds(), QItemDelegate::textRectangle(), QWorkspace::tile(), QStyleSheetStyle::titleBarLayout(), QTest::toString(), QLayout::totalMaximumSize(), QLayout::totalMinimumSize(), QLayout::totalSizeHint(), QSplitterPrivate::trans(), QDirectFBPixmapData::transformed(), QETWidget::translateConfigEvent(), QStyleHelper::uniqueName(), uniqueName(), QMenuPrivate::updateActionRects(), ShaderEffectSource::updateBackbuffer(), QGL2PaintEngineExPrivate::updateBrushTexture(), QCalendarTextNavigator::updateDateLabel(), QStyledItemDelegate::updateEditorGeometry(), updateFormLayoutItem(), QOpenGLPaintEnginePrivate::updateFragmentProgramData(), QMenuBarPrivate::updateGeometries(), QTableView::updateGeometries(), QGLWindowSurface::updateGeometry(), ShaderEffectItem::updateGeometry(), QAxServerBase::updateGeometry(), QCommonListViewBase::updateHorizontalScrollBar(), QListModeViewBase::updateHorizontalScrollBar(), QExpandingLineEdit::updateMinimumWidth(), QWizardPrivate::updateMinMaxSizes(), ShaderEffect::updateRenderTargets(), QScrollAreaPrivate::updateScrollBars(), QColumnViewPrivate::updateScrollbars(), QTreeViewPrivate::updateScrollBars(), QMdiAreaPrivate::updateScrollBars(), QDeclarativeTextPrivate::updateSize(), QMessageBoxPrivate::updateSize(), ShaderEffectSource::updateSizeAndTexture(), QFormLayoutPrivate::updateSizes(), useScrollBar(), QSettingsPrivate::variantToString(), QCommonStylePrivate::viewItemLayout(), QCommonStylePrivate::viewItemSize(), QVideoFrame::width(), and QPdfEnginePrivate::writePage().

{ return wd; }

Friends and Related Functions

operator!=

bool operator!= ( const QSize &  s1, const QSize &  s2  )

friend

Returns true if s1 and s2 are different; otherwise returns false.

Definition at line 159 of file qsize.h.

{ return s1.wd != s2.wd || s1.ht != s2.ht; }

operator* [1/2]

const QSize operator* ( const QSize &  size, qreal  factor  )

friend

Multiplies the given size by the given factor, and returns the result rounded to the nearest integer.

See also

QSize::scale()

Definition at line 168 of file qsize.h.

{ return QSize(qRound(s.wd*c), qRound(s.ht*c)); }

operator* [2/2]

const QSize operator* ( qreal  factor, const QSize &  size  )

friend

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

Multiplies the given size by the given factor, and returns the result rounded to the nearest integer.

Definition at line 171 of file qsize.h.

{ return QSize(qRound(s.wd*c), qRound(s.ht*c)); }

operator+

const QSize operator+ ( const QSize &  s1, const QSize &  s2  )

friend

Returns the sum of s1 and s2; each component is added separately.

Definition at line 162 of file qsize.h.

{ return QSize(s1.wd+s2.wd, s1.ht+s2.ht); }

operator-

const QSize operator- ( const QSize &  s1, const QSize &  s2  )

friend

Returns s2 subtracted from s1; each component is subtracted separately.

Definition at line 165 of file qsize.h.

{ return QSize(s1.wd-s2.wd, s1.ht-s2.ht); }

operator/

const QSize operator/ ( const QSize &  size, qreal  divisor  )

friend

Divides the given size by the given divisor, and returns the result rounded to the nearest integer.

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

See also

QSize::scale()

Definition at line 181 of file qsize.h.

{
    Q_ASSERT(!qFuzzyIsNull(c));
    return QSize(qRound(s.wd/c), qRound(s.ht/c));
}

operator<<()

QDataStream & operator<< ( QDataStream &  stream, const QSize &  size  )

related

Writes the given size to the given stream, and returns a reference to the stream.

See also

{Serializing Qt Data Types}

Definition at line 461 of file qsize.cpp.

Referenced by boundedTo().

{
    if (s.version() == 1)
        s << (qint16)sz.width() << (qint16)sz.height();
    else
        s << (qint32)sz.width() << (qint32)sz.height();
    return s;
}

operator==

bool operator== ( const QSize &  s1, const QSize &  s2  )

friend

Returns true if s1 and s2 are equal; otherwise returns false.

Definition at line 156 of file qsize.h.

{ return s1.wd == s2.wd && s1.ht == s2.ht; }

operator>>()

QDataStream & operator>> ( QDataStream &  stream, QSize &  size  )

related

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

See also

{Serializing Qt Data Types}

Definition at line 483 of file qsize.cpp.

{
    if (s.version() == 1) {
        qint16 w, h;
        s >> w;  sz.rwidth() = w;
        s >> h;  sz.rheight() = h;
    }
    else {
        qint32 w, h;
        s >> w;  sz.rwidth() = w;
        s >> h;  sz.rheight() = h;
    }
    return s;
}

Properties

ht

int QSize::ht

private

Definition at line 93 of file qsize.h.

Referenced by boundedTo(), expandedTo(), height(), isEmpty(), isNull(), isValid(), operator!=(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator-=(), operator/(), operator/=(), operator==(), QSize(), QSizeF::QSizeF(), rheight(), scale(), QSizeF::scale(), setHeight(), transpose(), and QSizeF::transpose().

wd

int QSize::wd

private

Definition at line 92 of file qsize.h.

Referenced by boundedTo(), expandedTo(), isEmpty(), isNull(), isValid(), operator!=(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator-=(), operator/(), operator/=(), operator==(), QSize(), QSizeF::QSizeF(), rwidth(), scale(), QSizeF::scale(), setWidth(), transpose(), QSizeF::transpose(), and width().

---

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

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