qwidget.h File Reference

#include <QtCore/qconfig.h>
#include <QtGui/qwindowdefs.h>
#include <QtCore/qobject.h>
#include <QtCore/qmargins.h>
#include <QtGui/qpaintdevice.h>
#include <QtGui/qpalette.h>
#include <QtGui/qfont.h>
#include <QtGui/qfontmetrics.h>
#include <QtGui/qfontinfo.h>
#include <QtGui/qsizepolicy.h>
#include <QtGui/qregion.h>
#include <QtGui/qbrush.h>
#include <QtGui/qcursor.h>
#include <QtGui/qkeysequence.h>

Go to the source code of this file.

Classes
class	QWidget
	The QWidget class is the base class of all user interface objects. More...
class	QWidgetData

Macros
#define	QWIDGETSIZE_MAX   ((1<<24)-1)
	Defines the maximum size for a QWidget object. More...

Functions
template<>
const QWidget *	qobject_cast< const QWidget * > (const QObject *o)
template<>
QWidget *	qobject_cast< QWidget * > (QObject *o)

Macro Definition Documentation

QWIDGETSIZE_MAX

#define QWIDGETSIZE_MAX   ((1<<24)-1)

Defines the maximum size for a QWidget object.

The largest allowed size for a widget is QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX), i.e. QSize (16777215,16777215).

See also

QWidget::setMaximumSize()

Definition at line 1087 of file qwidget.h.

Referenced by QGraphicsAnchorLayoutPrivate::constraintsFromSizeHints(), QWidgetPrivate::createExtra(), QGraphicsAnchorLayoutPrivate::createLayoutEdges(), do_size_hints(), QGraphicsLayoutItemPrivate::effectiveSizeHints(), QDockAreaLayoutInfo::fitItems(), QDockAreaLayout::getGrid(), initEmptyMultiBox(), QToolBarLayout::layoutActions(), QDockAreaLayoutItem::maximumSize(), QDockAreaLayoutInfo::maximumSize(), QDockWidgetItem::maximumSize(), QLabel::minimumSizeHint(), qSmartMaxSize(), qt_grab_cursor(), QtWndProc(), QWorkspaceTitleBar::QWorkspaceTitleBar(), realMaxSize(), QSplitterPrivate::recalc(), AnchorData::refreshSizeHints(), QWidget::setDisabled(), QWidget::setFixedSize(), QStyleSheetStyle::setGeometry(), QWidget::setMaximumHeight(), QWidgetPrivate::setMaximumSize_helper(), QWidget::setMaximumWidth(), QWidgetPrivate::setMinimumSize_helper(), QWizardHeader::setup(), QFormLayoutPrivate::setupVerticalLayoutData(), QDockWidgetLayout::sizeFromContent(), QGraphicsProxyWidget::sizeHint(), QDockAreaLayoutInfo::sizeHint(), QGraphicsWidget::sizeHint(), QWizardPrivate::updateMinMaxSizes(), and QFormLayoutPrivate::updateSizes().

Function Documentation

qobject_cast< const QWidget * >()

template<>

const QWidget* qobject_cast< const QWidget *> ( const QObject *  o )

inline

Definition at line 928 of file qwidget.h.

{
    if (!o || !o->isWidgetType()) return 0;
    return static_cast<const QWidget*>(o);
}

qobject_cast< QWidget * >()

template<>

QWidget* qobject_cast< QWidget *> ( QObject *  o )

inline

Definition at line 923 of file qwidget.h.

{
    if (!o || !o->isWidgetType()) return 0;
    return static_cast<QWidget*>(o);
}