diff options
author | Christian Ehrlicher <ch.ehrlicher@gmx.de> | 2019-01-27 17:49:07 +0100 |
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committer | Christian Ehrlicher <ch.ehrlicher@gmx.de> | 2019-02-05 16:55:13 +0000 |
commit | 1b90684948df45977515ab5e9a3fb4aafb72c6fd (patch) | |
tree | bbde8ab474302497b125ed85e96c39be70d423d3 /src/widgets/kernel/qwidget.cpp | |
parent | 0059de2d1b4f9a063af7e81788aaec22a3ac7739 (diff) |
QtWidgets: replace 0 with \nullptr in documentation
Replace 0 with \nullptr in the documentation.
As a drive-by also replace some 0 with nullptr in the corresponding
code.
Change-Id: I5e5bc1ae892f270d7c3419db1c179053561f1b26
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Diffstat (limited to 'src/widgets/kernel/qwidget.cpp')
-rw-r--r-- | src/widgets/kernel/qwidget.cpp | 55 |
1 files changed, 28 insertions, 27 deletions
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp index 3b1d82df18..87cc150530 100644 --- a/src/widgets/kernel/qwidget.cpp +++ b/src/widgets/kernel/qwidget.cpp @@ -511,10 +511,10 @@ void QWidget::setAutoFillBackground(bool enabled) Every widget's constructor accepts one or two standard arguments: \list 1 - \li \c{QWidget *parent = 0} is the parent of the new widget. If it is 0 - (the default), the new widget will be a window. If not, it will be - a child of \e parent, and be constrained by \e parent's geometry - (unless you specify Qt::Window as window flag). + \li \c{QWidget *parent = \nullptr} is the parent of the new widget. + If it is \nullptr (the default), the new widget will be a window. + If not, it will be a child of \e parent, and be constrained by + \e parent's geometry (unless you specify Qt::Window as window flag). \li \c{Qt::WindowFlags f = 0} (where available) sets the window flags; the default is suitable for almost all widgets, but to get, for example, a window without a window system frame, you must use @@ -1003,7 +1003,7 @@ struct QWidgetExceptionCleaner Constructs a widget which is a child of \a parent, with widget flags set to \a f. - If \a parent is 0, the new widget becomes a window. If + If \a parent is \nullptr, the new widget becomes a window. If \a parent is another widget, this widget becomes a child window inside \a parent. The new widget is deleted when its \a parent is deleted. @@ -2497,12 +2497,12 @@ void QWidgetPrivate::deactivateWidgetCleanup() The window identifier type depends on the underlying window system, see \c qwindowdefs.h for the actual definition. If there - is no widget with this identifier, 0 is returned. + is no widget with this identifier, \nullptr is returned. */ QWidget *QWidget::find(WId id) { - return QWidgetPrivate::mapper ? QWidgetPrivate::mapper->value(id, 0) : 0; + return QWidgetPrivate::mapper ? QWidgetPrivate::mapper->value(id, 0) : nullptr; } @@ -3279,7 +3279,7 @@ void QWidget::addActions(QList<QAction*> actions) /*! Inserts the action \a action to this widget's list of actions, - before the action \a before. It appends the action if \a before is 0 or + before the action \a before. It appends the action if \a before is \nullptr or \a before is not a valid action for this widget. A QWidget should only have one of each action. @@ -3313,7 +3313,7 @@ void QWidget::insertAction(QAction *before, QAction *action) /*! Inserts the actions \a actions to this widget's list of actions, - before the action \a before. It appends the action if \a before is 0 or + before the action \a before. It appends the action if \a before is \nullptr or \a before is not a valid action for this widget. A QWidget can have at most one of each action. @@ -4336,7 +4336,8 @@ QWidget *QWidget::window() const \since 4.4 Returns the native parent for this widget, i.e. the next ancestor widget - that has a system identifier, or 0 if it does not have any native parent. + that has a system identifier, or \nullptr if it does not have any native + parent. \sa effectiveWinId() */ @@ -5273,7 +5274,7 @@ QPixmap QWidget::grab(const QRect &rectangle) \brief The graphicsEffect function returns a pointer to the widget's graphics effect. - If the widget has no graphics effect, 0 is returned. + If the widget has no graphics effect, \nullptr is returned. \since 4.6 @@ -5917,10 +5918,10 @@ QPixmap QWidgetEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint * Finds the nearest widget embedded in a graphics proxy widget along the chain formed by this widget and its ancestors. The search starts at \a origin (inclusive). - If successful, the function returns the proxy that embeds the widget, or 0 if no embedded - widget was found. + If successful, the function returns the proxy that embeds the widget, or \nullptr if no + embedded widget was found. */ -QGraphicsProxyWidget * QWidgetPrivate::nearestGraphicsProxyWidget(const QWidget *origin) +QGraphicsProxyWidget *QWidgetPrivate::nearestGraphicsProxyWidget(const QWidget *origin) { if (origin) { QWExtra *extra = origin->d_func()->extra; @@ -5928,7 +5929,7 @@ QGraphicsProxyWidget * QWidgetPrivate::nearestGraphicsProxyWidget(const QWidget return extra->proxyWidget; return nearestGraphicsProxyWidget(origin->parentWidget()); } - return 0; + return nullptr; } #endif @@ -6400,7 +6401,7 @@ void QWidget::setWindowRole(const QString &role) /*! - Sets the widget's focus proxy to widget \a w. If \a w is 0, the + Sets the widget's focus proxy to widget \a w. If \a w is \nullptr, the function resets this widget to have no focus proxy. Some widgets can "have focus", but create a child widget, such as @@ -6433,15 +6434,15 @@ void QWidget::setFocusProxy(QWidget * w) /*! - Returns the focus proxy, or 0 if there is no focus proxy. + Returns the focus proxy, or \nullptr if there is no focus proxy. \sa setFocusProxy() */ -QWidget * QWidget::focusProxy() const +QWidget *QWidget::focusProxy() const { Q_D(const QWidget); - return d->extra ? (QWidget *)d->extra->focus_proxy : 0; + return d->extra ? (QWidget *)d->extra->focus_proxy : nullptr; } @@ -8819,7 +8820,7 @@ QSize QWidget::minimumSizeHint() const /*! \fn QWidget *QWidget::parentWidget() const - Returns the parent of this widget, or 0 if it does not have any + Returns the parent of this widget, or \nullptr if it does not have any parent widget. */ @@ -10229,7 +10230,7 @@ QRegion QWidget::mask() const } /*! - Returns the layout manager that is installed on this widget, or 0 + Returns the layout manager that is installed on this widget, or \nullptr if no layout manager is installed. The layout manager sets the geometry of the widget's children @@ -12117,14 +12118,14 @@ bool QWidgetPrivate::navigateToDirection(Direction direction) Searches for a widget that is positioned in the \a direction, starting from the current focusWidget. - Returns the pointer to a found widget or 0, if there was no widget in - that direction. + Returns the pointer to a found widget or \nullptr, if there was no widget + in that direction. */ QWidget *QWidgetPrivate::widgetInNavigationDirection(Direction direction) { const QWidget *sourceWidget = QApplication::focusWidget(); if (!sourceWidget) - return 0; + return nullptr; const QRect sourceRect = sourceWidget->rect().translated(sourceWidget->mapToGlobal(QPoint())); const int sourceX = (direction == DirectionNorth || direction == DirectionSouth) ? @@ -12138,7 +12139,7 @@ QWidget *QWidgetPrivate::widgetInNavigationDirection(Direction direction) const QPoint sourceCenter = sourceRect.center(); const QWidget *sourceWindow = sourceWidget->window(); - QWidget *targetWidget = 0; + QWidget *targetWidget = nullptr; int shortestDistance = INT_MAX; const auto targetCandidates = QApplication::allWidgets(); @@ -12805,7 +12806,7 @@ void QWidget::releaseKeyboard() Returns the widget that is currently grabbing the mouse input. If no widget in this application is currently grabbing the mouse, - 0 is returned. + \nullptr is returned. \sa grabMouse(), keyboardGrabber() */ @@ -12822,7 +12823,7 @@ QWidget *QWidget::mouseGrabber() Returns the widget that is currently grabbing the keyboard input. If no widget in this application is currently grabbing the - keyboard, 0 is returned. + keyboard, \nullptr is returned. \sa grabMouse(), mouseGrabber() */ |