#include <qtoolbarlayout_p.h>

Inheritance diagram for QToolBarLayout:

Public Slots
void	setExpanded (bool b)

Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Public Functions
void	addItem (QLayoutItem *item)
	Implemented in subclasses to add an item. More...

void	checkUsePopupMenu ()

int	count () const
	Must be implemented in subclasses to return the number of items in the layout. More...

QSize	expandedSize (const QSize &size) const

Qt::Orientations	expandingDirections () const
	Returns whether this layout can make use of more space than sizeHint(). More...

bool	hasExpandFlag () const

int	indexOf (QAction *action) const

int	indexOf (QWidget *widget) const
	Searches for widget widget in this layout (not including child layouts). More...

void	insertAction (int index, QAction *action)

void	invalidate ()
	Reimplemented Function More...

bool	isEmpty () const
	Reimplemented Function More...

QLayoutItem *	itemAt (int index) const
	Must be implemented in subclasses to return the layout item at index. More...

bool	layoutActions (const QSize &size)

QSize	minimumSize () const
	Returns the minimum size of this layout. More...

bool	movable () const

	QToolBarLayout (QWidget *parent=0)

void	setGeometry (const QRect &r)
	Reimplemented Function More...

void	setUsePopupMenu (bool set)

QSize	sizeHint () const
	Implemented in subclasses to return the preferred size of this item. More...

QLayoutItem *	takeAt (int index)
	Must be implemented in subclasses to remove the layout item at index from the layout, and return the item. More...

void	updateMarginAndSpacing ()

	~QToolBarLayout ()

Public Functions inherited from QLayout
bool	activate ()
	Redoes the layout for parentWidget() if necessary. More...

void	addWidget (QWidget *w)
	Adds widget w to this layout in a manner specific to the layout. More...

QMargins	contentsMargins () const
	Returns the margins used around the layout. More...

QRect	contentsRect () const
	Returns the layout's geometry() rectangle, but taking into account the contents margins. More...

QRect	geometry () const
	Reimplemented Function More...

void	getContentsMargins (int left, int top, int right, int bottom) const

bool	isEnabled () const
	Returns true if the layout is enabled; otherwise returns false. More...

QLayout *	layout ()
	Reimplemented Function More...

int	margin () const

QSize	maximumSize () const
	Returns the maximum size of this layout. More...

QWidget *	menuBar () const
	Returns the menu bar set for this layout, or 0 if no menu bar is set. More...

QWidget *	parentWidget () const
	Returns the parent widget of this layout, or 0 if this layout is not installed on any widget. More...

	QLayout (QWidget *parent)
	Constructs a new top-level QLayout, with parent parent. More...

	QLayout ()
	Constructs a new child QLayout. More...

void	removeItem (QLayoutItem *)
	Removes the layout item item from the layout. More...

void	removeWidget (QWidget *w)
	Removes the widget widget from the layout. More...

bool	setAlignment (QWidget *w, Qt::Alignment alignment)
	Sets the alignment for widget w to alignment and returns true if w is found in this layout (not including child layouts); otherwise returns false. More...

bool	setAlignment (QLayout *l, Qt::Alignment alignment)
	Sets the alignment for the layout l to alignment and returns true if l is found in this layout (not including child layouts); otherwise returns false. More...

void	setContentsMargins (int left, int top, int right, int bottom)
	Sets the left, top, right, and bottom margins to use around the layout. More...

void	setContentsMargins (const QMargins &margins)
	Sets the margins to use around the layout. More...

void	setEnabled (bool)
	Enables this layout if enable is true, otherwise disables it. More...

void	setMargin (int)

void	setMenuBar (QWidget *w)
	Tells the geometry manager to place the menu bar widget at the top of parentWidget(), outside QWidget::contentsMargins(). More...

void	setSizeConstraint (SizeConstraint)

void	setSpacing (int)

SizeConstraint	sizeConstraint () const

int	spacing () const

int	totalHeightForWidth (int w) const
	Also takes contentsMargins and menu bar into account. More...

QSize	totalMaximumSize () const
	Also takes contentsMargins and menu bar into account. More...

QSize	totalMinimumSize () const
	Also takes contentsMargins and menu bar into account. More...

QSize	totalSizeHint () const
	Also takes contentsMargins and menu bar into account. More...

void	update ()
	Updates the layout for parentWidget(). More...

	~QLayout ()
	Destroys the layout, deleting all child layouts. More...

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

bool	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Public Functions inherited from QLayoutItem
Qt::Alignment	alignment () const
	Returns the alignment of this item. More...

QSizePolicy::ControlTypes	controlTypes () const
	Returns the control type(s) for the layout item. More...

virtual bool	hasHeightForWidth () const
	Returns true if this layout's preferred height depends on its width; otherwise returns false. More...

virtual int	heightForWidth (int) const
	Returns the preferred height for this layout item, given the width w. More...

virtual int	minimumHeightForWidth (int) const
	Returns the minimum height this widget needs for the given width, w. More...

	QLayoutItem (Qt::Alignment alignment=0)
	Constructs a layout item with an alignment. More...

void	setAlignment (Qt::Alignment a)
	Sets the alignment of this item to alignment. More...

virtual QSpacerItem *	spacerItem ()
	If this item is a QSpacerItem, it is returned as a QSpacerItem; otherwise 0 is returned. More...

virtual QWidget *	widget ()
	If this item is a QWidget, it is returned as a QWidget; otherwise 0 is returned. More...

virtual	~QLayoutItem ()
	Destroys the QLayoutItem. More...

Public Variables
bool	animating

bool	expanded

Private Functions
QToolBarItem *	createItem (QAction *action)

void	updateGeomArray () const

Properties
bool	dirty

bool	empty

bool	expandFlag

bool	expanding

QToolBarExtension *	extension

QVector< QLayoutStruct >	geomArray

QRect	handRect

QSize	hint

QList< QToolBarItem * >	items

QSize	minSize

QMenu *	popupMenu

Additional Inherited Members
Public Types inherited from QLayout
enum	SizeConstraint { SetDefaultConstraint, SetNoConstraint, SetMinimumSize, SetFixedSize, SetMaximumSize, SetMinAndMaxSize }
	The possible values are: More...

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Static Public Functions inherited from QLayout
static QSize	closestAcceptableSize (const QWidget *w, const QSize &s)
	Returns a size that satisfies all size constraints on widget, including heightForWidth() and that is as close as possible to size. More...

Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

static bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Functions inherited from QLayout
void	addChildLayout (QLayout *l)
	This function is called from `addLayout()` or `insertLayout()` functions in subclasses to add layout l as a sub-layout. More...

void	addChildWidget (QWidget *w)
	This function is called from `addWidget()` functions in subclasses to add w as a managed widget of a layout. More...

bool	adoptLayout (QLayout *layout)

QRect	alignmentRect (const QRect &) const
	Returns the rectangle that should be covered when the geometry of this layout is set to r, provided that this layout supports setAlignment(). More...

void	childEvent (QChildEvent *e)
	Reimplemented Function More...

	QLayout (QLayoutPrivate &d, QLayout , QWidget )

void	widgetEvent (QEvent *)
	Performs child widget layout when the parent widget is resized. More...

Protected Functions inherited from QObject
virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Protected Variables inherited from QLayoutItem
Qt::Alignment	align

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 78 of file qtoolbarlayout_p.h.

Constructors and Destructors

◆ QToolBarLayout()

QToolBarLayout::QToolBarLayout ( QWidget * parent = 0 )

Definition at line 81 of file qtoolbarlayout.cpp.

     : QLayout(parent), expanded(false), animating(false), dirty(true),
         expanding(false), empty(true), expandFlag(false), popupMenu(0)
 {
     QToolBar *tb = qobject_cast<QToolBar*>(parent);
     if (!tb)
         return;
 
     extension = new QToolBarExtension(tb);
     extension->setFocusPolicy(Qt::NoFocus);
     extension->hide();
     QObject::connect(tb, SIGNAL(orientationChanged(Qt::Orientation)),
                      extension, SLOT(setOrientation(Qt::Orientation)));
 
     setUsePopupMenu(qobject_cast<QMainWindow*>(tb->parentWidget()) == 0);
 }

◆ ~QToolBarLayout()

QToolBarLayout::~QToolBarLayout ( )

Definition at line 98 of file qtoolbarlayout.cpp.

 {
     while (!items.isEmpty()) {
         QToolBarItem *item = items.takeFirst();
         if (QWidgetAction *widgetAction = qobject_cast<QWidgetAction*>(item->action)) {
             if (item->customWidget)
                 widgetAction->releaseWidget(item->widget());
         }
         delete item;
     }
 }

Functions

◆ addItem()

void QToolBarLayout::addItem ( QLayoutItem * item )

virtual

Implemented in subclasses to add an item.

How it is added is specific to each subclass.

This function is not usually called in application code. To add a widget to a layout, use the addWidget() function; to add a child layout, use the addLayout() function provided by the relevant QLayout subclass.

Note: The ownership of item is transferred to the layout, and it's the layout's responsibility to delete it.

See also: addWidget(), QBoxLayout::addLayout(), QGridLayout::addLayout()

Implements QLayout.

Definition at line 158 of file qtoolbarlayout.cpp.

 {
     qWarning() << "QToolBarLayout::addItem(): please use addAction() instead";
     return;
 }

◆ checkUsePopupMenu()

void QToolBarLayout::checkUsePopupMenu ( )

Definition at line 150 of file qtoolbarlayout.cpp.

Referenced by QToolBarPrivate::setWindowState().

 {
     QToolBar *tb = static_cast<QToolBar *>(parent());
     QMainWindow *mw = qobject_cast<QMainWindow *>(tb->parent());
     Qt::Orientation o = tb->orientation();
     setUsePopupMenu(!mw || tb->isFloating() || perp(o, expandedSize(mw->size())) >= perp(o, mw->size()));
 }

◆ count()

int QToolBarLayout::count ( ) const

virtual

Must be implemented in subclasses to return the number of items in the layout.

See also: itemAt()

Implements QLayout.

Definition at line 214 of file qtoolbarlayout.cpp.

Referenced by expandedSize(), layoutActions(), and updateGeomArray().

 {
     return items.count();
 }

◆ createItem()

QToolBarItem * QToolBarLayout::createItem ( QAction * action )

private

Definition at line 693 of file qtoolbarlayout.cpp.

Referenced by insertAction().

 {
     bool customWidget = false;
     bool standardButtonWidget = false;
     QWidget *widget = 0;
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return (QToolBarItem *)0;
 
     if (QWidgetAction *widgetAction = qobject_cast<QWidgetAction *>(action)) {
         widget = widgetAction->requestWidget(tb);
         if (widget != 0) {
             widget->setAttribute(Qt::WA_LayoutUsesWidgetRect);
             customWidget = true;
         }
     } else if (action->isSeparator()) {
         QToolBarSeparator *sep = new QToolBarSeparator(tb);
         connect(tb, SIGNAL(orientationChanged(Qt::Orientation)),
                 sep, SLOT(setOrientation(Qt::Orientation)));
         widget = sep;
     }
 
     if (!widget) {
         QToolButton *button = new QToolButton(tb);
         button->setAutoRaise(true);
         button->setFocusPolicy(Qt::NoFocus);
         button->setIconSize(tb->iconSize());
         button->setToolButtonStyle(tb->toolButtonStyle());
         QObject::connect(tb, SIGNAL(iconSizeChanged(QSize)),
                          button, SLOT(setIconSize(QSize)));
         QObject::connect(tb, SIGNAL(toolButtonStyleChanged(Qt::ToolButtonStyle)),
                          button, SLOT(setToolButtonStyle(Qt::ToolButtonStyle)));
         button->setDefaultAction(action);
         QObject::connect(button, SIGNAL(triggered(QAction*)), tb, SIGNAL(actionTriggered(QAction*)));
         widget = button;
         standardButtonWidget = true;
     }
 
     widget->hide();
     QToolBarItem *result = new QToolBarItem(widget);
     if (standardButtonWidget)
         result->setAlignment(Qt::AlignJustify);
     result->customWidget = customWidget;
     result->action = action;
     return result;
 }

◆ expandedSize()

QSize QToolBarLayout::expandedSize ( const QSize & size ) const

Definition at line 566 of file qtoolbarlayout.cpp.

Referenced by QToolBarAreaLayout::apply(), and checkUsePopupMenu().

 {
     if (dirty)
         updateGeomArray();
 
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return QSize(0, 0);
     QMainWindow *win = qobject_cast<QMainWindow*>(tb->parentWidget());
     Qt::Orientation o = tb->orientation();
     QStyle *style = tb->style();
     QStyleOptionToolBar opt;
     tb->initStyleOption(&opt);
     const int handleExtent = movable()
             ? style->pixelMetric(QStyle::PM_ToolBarHandleExtent, &opt, tb) : 0;
     const int margin = this->margin();
     const int spacing = this->spacing();
     const int extensionExtent = style->pixelMetric(QStyle::PM_ToolBarExtensionExtent, &opt, tb);
 
     int total_w = 0;
     int count = 0;
     for (int x = 0; x < items.count(); ++x) {
         if (!geomArray[x].empty) {
             total_w += (count == 0 ? 0 : spacing) + geomArray[x].minimumSize;
             ++count;
         }
     }
     if (count == 0)
         return QSize(0, 0);
 
     int min_w = pick(o, size);
     int rows = (int)qSqrt(qreal(count));
     if (rows == 1)
         ++rows;      // we want to expand to at least two rows
     int space = total_w/rows + spacing + extensionExtent;
     space = qMax(space, min_w - 2*margin - handleExtent);
     if (win != 0)
         space = qMin(space, pick(o, win->size()) - 2*margin - handleExtent);
 
     int w = 0;
     int h = 0;
     int i = 0;
     while (i < items.count()) {
         int count = 0;
         int size = 0;
         int prev = -1;
         int rowHeight = 0;
         for (; i < items.count(); ++i) {
             if (geomArray[i].empty)
                 continue;
 
             int newSize = size + (count == 0 ? 0 : spacing) + geomArray[i].minimumSize;
             rowHeight = qMax(rowHeight, perp(o, items.at(i)->sizeHint()));
             if (prev != -1 && newSize > space) {
                 if (count > 1 && size + spacing + extensionExtent > space) {
                     size -= spacing + geomArray[prev].minimumSize;
                     i = prev;
                 }
                 break;
             }
 
             size = newSize;
             prev = i;
             ++count;
         }
 
         w = qMax(size, w);
         h += rowHeight + spacing;
     }
 
     w += 2*margin + handleExtent + spacing + extensionExtent;
     w = qMax(w, min_w);
     if (win != 0)
         w = qMin(w, pick(o, win->size()));
     h += 2*margin - spacing; //there is no spacing before the first row
 
     QSize result;
     rpick(o, result) = w;
     rperp(o, result) = h;
     return result;
 }

◆ expandingDirections()

Qt::Orientations QToolBarLayout::expandingDirections ( ) const

virtual

Returns whether this layout can make use of more space than sizeHint().

A value of Qt::Vertical or Qt::Horizontal means that it wants to grow in only one dimension, whereas Qt::Vertical | Qt::Horizontal means that it wants to grow in both dimensions.

The default implementation returns Qt::Horizontal | Qt::Vertical. Subclasses reimplement it to return a meaningful value based on their child widgets's size policies.

See also: sizeHint()

Reimplemented from QLayout.

Definition at line 232 of file qtoolbarlayout.cpp.

 {
     if (dirty)
         updateGeomArray();
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return Qt::Orientations(0);
     Qt::Orientation o = tb->orientation();
     return expanding ? Qt::Orientations(o) : Qt::Orientations(0);
 }

◆ hasExpandFlag()

bool QToolBarLayout::hasExpandFlag ( ) const

Definition at line 123 of file qtoolbarlayout.cpp.

Referenced by QMainWindowLayout::insertIntoMacToolbar().

 {
     return expandFlag;
 }

◆ indexOf() [1/2]

int QToolBarLayout::indexOf ( QAction * action ) const

Definition at line 205 of file qtoolbarlayout.cpp.

 {
     for (int i = 0; i < items.count(); ++i) {
         if (items.at(i)->action == action)
             return i;
     }
     return -1;
 }

◆ indexOf() [2/2]

int QToolBarLayout::indexOf ( QWidget * widget ) const

inlinevirtual

Searches for widget widget in this layout (not including child layouts).

Returns the index of widget, or -1 if widget is not found.

The default implementation iterates over all items using itemAt()

Reimplemented from QLayout.

Definition at line 101 of file qtoolbarlayout_p.h.

101 { return QLayout::indexOf(widget); }

QLayout::indexOf

virtual int indexOf(QWidget *) const

Searches for widget widget in this layout (not including child layouts).

Definition: qlayout.cpp:1378

◆ insertAction()

void QToolBarLayout::insertAction	(	int	index,
		QAction *	action
	)

Definition at line 193 of file qtoolbarlayout.cpp.

 {
     index = qMax(0, index);
     index = qMin(items.count(), index);
 
     QToolBarItem *item = createItem(action);
     if (item) {
         items.insert(index, item);
         invalidate();
     }
 }

◆ invalidate()

void QToolBarLayout::invalidate ( )

virtual

Reimplemented Function

Reimplemented from QLayout.

Definition at line 226 of file qtoolbarlayout.cpp.

Referenced by insertAction(), setUsePopupMenu(), and takeAt().

 {
     dirty = true;
     QLayout::invalidate();
 }

◆ isEmpty()

bool QToolBarLayout::isEmpty ( ) const

virtual

Reimplemented Function

Reimplemented from QLayout.

Definition at line 219 of file qtoolbarlayout.cpp.

 {
     if (dirty)
         updateGeomArray();
     return empty;
 }

◆ itemAt()

QLayoutItem * QToolBarLayout::itemAt ( int index ) const

virtual

Must be implemented in subclasses to return the layout item at index.

If there is no such item, the function must return 0. Items are numbered consecutively from 0. If an item is deleted, other items will be renumbered.

This function can be used to iterate over a layout. The following code will draw a rectangle for each layout item in the layout structure of the widget.

static void paintLayout(QPainter *painter, QLayoutItem *item)
{
    QLayout *layout = item->layout();
    if (layout) {
        for (int i = 0; i < layout->count(); ++i)
            paintLayout(painter, layout->itemAt(i));
    }
    painter->drawRect(item->geometry());
}
void MyWidget::paintEvent(QPaintEvent *)
{
    QPainter painter(this);
    if (layout())
        paintLayout(&painter, layout());
}

See also: count(), takeAt()

Implements QLayout.

Definition at line 164 of file qtoolbarlayout.cpp.

 {
     if (index < 0 || index >= items.count())
         return 0;
     return items.at(index);
 }

◆ layoutActions()

bool QToolBarLayout::layoutActions ( const QSize & size )

Definition at line 418 of file qtoolbarlayout.cpp.

Referenced by QMainWindowLayout::animationFinished(), setExpanded(), and setGeometry().

 {
     if (dirty)
         updateGeomArray();
 
     QRect rect(0, 0, size.width(), size.height());
 
     QList<QWidget*> showWidgets, hideWidgets;
 
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return false;
     QStyle *style = tb->style();
     QStyleOptionToolBar opt;
     tb->initStyleOption(&opt);
     const int handleExtent = movable()
             ? style->pixelMetric(QStyle::PM_ToolBarHandleExtent, &opt, tb) : 0;
     const int margin = this->margin();
     const int spacing = this->spacing();
     const int extensionExtent = style->pixelMetric(QStyle::PM_ToolBarExtensionExtent, &opt, tb);
     Qt::Orientation o = tb->orientation();
     bool extensionMenuContainsOnlyWidgetActions = true;
 
     int space = pick(o, rect.size()) - 2*margin - handleExtent;
     if (space <= 0)
         return false;  // nothing to do.
 
     if(popupMenu)
         popupMenu->clear();
 
     bool ranOutOfSpace = false;
     int rows = 0;
     int rowPos = perp(o, rect.topLeft()) + margin;
     int i = 0;
     while (i < items.count()) {
         QVector<QLayoutStruct> a = geomArray;
 
         int start = i;
         int size = 0;
         int prev = -1;
         int rowHeight = 0;
         int count = 0;
         int maximumSize = 0;
         bool expansiveRow = false;
         for (; i < items.count(); ++i) {
             if (a[i].empty)
                 continue;
 
             int newSize = size + (count == 0 ? 0 : spacing) + a[i].minimumSize;
             if (prev != -1 && newSize > space) {
                 if (rows == 0)
                     ranOutOfSpace = true;
                 // do we have to move the previous item to the next line to make space for
                 // the extension button?
                 if (count > 1 && size + spacing + extensionExtent > space)
                     i = prev;
                 break;
             }
 
             if (expanded)
                 rowHeight = qMax(rowHeight, perp(o, items.at(i)->sizeHint()));
             expansiveRow = expansiveRow || a[i].expansive;
             size = newSize;
             maximumSize += spacing + (a[i].expansive ? a[i].maximumSize : a[i].smartSizeHint());
             prev = i;
             ++count;
         }
 
         // stretch at the end
         a[i].sizeHint = 0;
         a[i].maximumSize = QWIDGETSIZE_MAX;
         a[i].minimumSize = 0;
         a[i].expansive = true;
         a[i].stretch = 0;
         a[i].empty = true;
 
         if (expansiveRow && maximumSize < space) {
             expansiveRow = false;
             a[i].maximumSize = space - maximumSize;
         }
 
         qGeomCalc(a, start, i - start + (expansiveRow ? 0 : 1), 0,
                     space - (ranOutOfSpace ? (extensionExtent + spacing) : 0),
                     spacing);
 
         for (int j = start; j < i; ++j) {
             QToolBarItem *item = items.at(j);
 
             if (a[j].empty) {
                 if (!item->widget()->isHidden())
                     hideWidgets << item->widget();
                 continue;
             }
 
             QPoint pos;
             rpick(o, pos) = margin + handleExtent + a[j].pos;
             rperp(o, pos) = rowPos;
             QSize size;
             rpick(o, size) = a[j].size;
             if (expanded)
                 rperp(o, size) = rowHeight;
             else
                 rperp(o, size) = perp(o, rect.size()) - 2*margin;
             QRect r(pos, size);
 
             if (o == Qt::Horizontal)
                 r = QStyle::visualRect(parentWidget()->layoutDirection(), rect, r);
 
             item->setGeometry(r);
 
             if (item->widget()->isHidden())
                 showWidgets << item->widget();
         }
 
         if (!expanded) {
             for (int j = i; j < items.count(); ++j) {
                 QToolBarItem *item = items.at(j);
                 if (!item->widget()->isHidden())
                     hideWidgets << item->widget();
                 if (popupMenu) {
                     if (!defaultWidgetAction(item)) {
                         popupMenu->addAction(item->action);
                         extensionMenuContainsOnlyWidgetActions = false;
                     }
                 }
             }
             break;
         }
 
         rowPos += rowHeight + spacing;
         ++rows;
     }
 
     // if we are using a popup menu, not the expadning toolbar effect, we cannot move custom
     // widgets into the menu. If only custom widget actions are chopped off, the popup menu
     // is empty. So we show the little extension button to show something is chopped off,
     // but we make it disabled.
     extension->setEnabled(popupMenu == 0 || !extensionMenuContainsOnlyWidgetActions);
 
     // we have to do the show/hide here, because it triggers more calls to setGeometry :(
     for (int i = 0; i < showWidgets.count(); ++i)
         showWidgets.at(i)->show();
     for (int i = 0; i < hideWidgets.count(); ++i)
         hideWidgets.at(i)->hide();
 
     return ranOutOfSpace;
 }

◆ minimumSize()

QSize QToolBarLayout::minimumSize ( ) const

virtual

Returns the minimum size of this layout.

This is the smallest size that the layout can have while still respecting the specifications.

The returned value doesn't include the space required by QWidget::setContentsMargins() or menuBar().

The default implementation allows unlimited resizing.

Reimplemented from QLayout.

Definition at line 679 of file qtoolbarlayout.cpp.

Referenced by expandedSize(), and layoutActions().

 {
     if (dirty)
         updateGeomArray();
     return minSize;
 }

◆ movable()

bool QToolBarLayout::movable ( ) const

Definition at line 243 of file qtoolbarlayout.cpp.

Referenced by expandedSize(), layoutActions(), QToolBarPrivate::mousePressEvent(), and updateGeomArray().

 {
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return false;
     QMainWindow *win = qobject_cast<QMainWindow*>(tb->parentWidget());
     return tb->isMovable() && win != 0;
 }

◆ setExpanded

void QToolBarLayout::setExpanded ( bool b )

slot

Definition at line 648 of file qtoolbarlayout.cpp.

Referenced by setUsePopupMenu(), and QToolBarPrivate::unplug().

 {
     QWidget *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return;
     if (exp == expanded && !tb->isWindow())
         return;
 
     expanded = exp;
     extension->setChecked(expanded);
 
     if (QMainWindow *win = qobject_cast<QMainWindow*>(tb->parentWidget())) {
 #ifdef QT_NO_DOCKWIDGET
         animating = false;
 #else
         animating = !tb->isWindow() && win->isAnimated();
 #endif
         QMainWindowLayout *layout = qt_mainwindow_layout(win);
         if (expanded) {
             tb->raise();
         } else {
             QList<int> path = layout->layoutState.indexOf(tb);
             if (!path.isEmpty()) {
                 QRect rect = layout->layoutState.itemRect(path);
                 layoutActions(rect.size());
             }
         }
         layout->layoutState.toolBarAreaLayout.apply(animating);
     }
 }

◆ setGeometry()

void QToolBarLayout::setGeometry ( const QRect & r )

virtual

Reimplemented Function

Reimplemented from QLayout.

Definition at line 358 of file qtoolbarlayout.cpp.

 {
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return;
     QStyle *style = tb->style();
     QStyleOptionToolBar opt;
     tb->initStyleOption(&opt);
     const int margin = this->margin();
     const int extensionExtent = style->pixelMetric(QStyle::PM_ToolBarExtensionExtent, &opt, tb);
     Qt::Orientation o = tb->orientation();
 
     QLayout::setGeometry(rect);
 
     bool ranOutOfSpace = false;
     if (!animating)
         ranOutOfSpace = layoutActions(rect.size());
 
     if (expanded || animating || ranOutOfSpace) {
         Qt::ToolBarArea area = Qt::TopToolBarArea;
         if (QMainWindow *win = qobject_cast<QMainWindow*>(tb->parentWidget()))
             area = win->toolBarArea(tb);
         QSize hint = sizeHint();
 
         QPoint pos;
         rpick(o, pos) = pick(o, rect.bottomRight()) - margin - extensionExtent + 2;
         if (area == Qt::LeftToolBarArea || area == Qt::TopToolBarArea)
             rperp(o, pos) = perp(o, rect.topLeft()) + margin;
         else
             rperp(o, pos) = perp(o, rect.bottomRight()) - margin - (perp(o, hint) - 2*margin) + 1;
         QSize size;
         rpick(o, size) = extensionExtent;
         rperp(o, size) = perp(o, hint) - 2*margin;
         QRect r(pos, size);
 
         if (o == Qt::Horizontal)
             r = QStyle::visualRect(parentWidget()->layoutDirection(), rect, r);
 
         extension->setGeometry(r);
 
         if (extension->isHidden())
             extension->show();
     } else {
         if (!extension->isHidden())
             extension->hide();
     }
 #ifdef Q_WS_MAC
     // Nothing to do for Carbon... probably   
 #  ifdef QT_MAC_USE_COCOA
     if (QMainWindow *win = qobject_cast<QMainWindow*>(tb->parentWidget())) {
         Qt::ToolBarArea area = win->toolBarArea(tb);
         if (win->unifiedTitleAndToolBarOnMac() && area == Qt::TopToolBarArea) {
             qt_mainwindow_layout(win)->fixSizeInUnifiedToolbar(tb);
         }
     }
 #  endif
 #endif
     
 }

◆ setUsePopupMenu()

void QToolBarLayout::setUsePopupMenu ( bool set )

Definition at line 128 of file qtoolbarlayout.cpp.

Referenced by checkUsePopupMenu(), QMainWindowLayout::insertIntoMacToolbar(), and QToolBarLayout().

 {
     if (!dirty && ((popupMenu == 0) == set))
         invalidate();
     if (!set) {
         QObject::connect(extension, SIGNAL(clicked(bool)),
                         this, SLOT(setExpanded(bool)), Qt::UniqueConnection);
         extension->setPopupMode(QToolButton::DelayedPopup);
         extension->setMenu(0);
         delete popupMenu;
         popupMenu = 0;
     } else {
         QObject::disconnect(extension, SIGNAL(clicked(bool)),
                             this, SLOT(setExpanded(bool)));
         extension->setPopupMode(QToolButton::InstantPopup);
         if (!popupMenu) {
             popupMenu = new QMenu(extension);
         }
         extension->setMenu(popupMenu);
     }
 }

◆ sizeHint()

QSize QToolBarLayout::sizeHint ( ) const

virtual

Implemented in subclasses to return the preferred size of this item.

Implements QLayoutItem.

Definition at line 686 of file qtoolbarlayout.cpp.

Referenced by setGeometry().

 {
     if (dirty)
         updateGeomArray();
     return hint;
 }

◆ takeAt()

QLayoutItem * QToolBarLayout::takeAt ( int index )

virtual

Must be implemented in subclasses to remove the layout item at index from the layout, and return the item.

If there is no such item, the function must do nothing and return 0. Items are numbered consecutively from 0. If an item is removed, other items will be renumbered.

The following code fragment shows a safe way to remove all items from a layout:

QLayoutItem *child;
while ((child = layout->takeAt(0)) != 0) {
    ...
    delete child;
}

See also: itemAt(), count()

Implements QLayout.

Definition at line 171 of file qtoolbarlayout.cpp.

 {
     if (index < 0 || index >= items.count())
         return 0;
     QToolBarItem *item = items.takeAt(index);
 
     if (popupMenu)
         popupMenu->removeAction(item->action);
 
     QWidgetAction *widgetAction = qobject_cast<QWidgetAction*>(item->action);
     if (widgetAction != 0 && item->customWidget) {
         widgetAction->releaseWidget(item->widget());
     } else {
         // destroy the QToolButton/QToolBarSeparator
         item->widget()->hide();
         item->widget()->deleteLater();
     }
 
     invalidate();
     return item;
 }

◆ updateGeomArray()

void QToolBarLayout::updateGeomArray ( ) const

private

Definition at line 252 of file qtoolbarlayout.cpp.

Referenced by expandedSize(), expandingDirections(), isEmpty(), layoutActions(), minimumSize(), and sizeHint().

 {
     if (!dirty)
         return;
 
     QToolBarLayout *that = const_cast<QToolBarLayout*>(this);
 
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return;
     QStyle *style = tb->style();
     QStyleOptionToolBar opt;
     tb->initStyleOption(&opt);
     const int handleExtent = movable()
             ? style->pixelMetric(QStyle::PM_ToolBarHandleExtent, &opt, tb) : 0;
     const int margin = this->margin();
     const int spacing = this->spacing();
     const int extensionExtent = style->pixelMetric(QStyle::PM_ToolBarExtensionExtent, &opt, tb);
     Qt::Orientation o = tb->orientation();
 
     that->minSize = QSize(0, 0);
     that->hint = QSize(0, 0);
     rperp(o, that->minSize) = style->pixelMetric(QStyle::PM_ToolBarHandleExtent, &opt, tb);
     rperp(o, that->hint) = style->pixelMetric(QStyle::PM_ToolBarHandleExtent, &opt, tb);
 
     that->expanding = false;
     that->empty = false;
 
     QVector<QLayoutStruct> a(items.count() + 1); // + 1 for the stretch
 
     int count = 0;
     for (int i = 0; i < items.count(); ++i) {
         QToolBarItem *item = items.at(i);
 
         QSize max = item->maximumSize();
         QSize min = item->minimumSize();
         QSize hint = item->sizeHint();
         Qt::Orientations exp = item->expandingDirections();
         bool empty = item->isEmpty();
 
         that->expanding = expanding || exp & o;
 
 
         if (item->widget()) {
             if ((item->widget()->sizePolicy().horizontalPolicy() & QSizePolicy::ExpandFlag)) {
                 that->expandFlag = true;
             }
         }
 
         if (!empty) {
             if (count == 0) // the minimum size only displays one widget
                 rpick(o, that->minSize) += pick(o, min);
             int s = perp(o, minSize);
             rperp(o, that->minSize) = qMax(s, perp(o, min));
 
             //we only add spacing before item (ie never before the first one)
             rpick(o, that->hint) += (count == 0 ? 0 : spacing) + pick(o, hint);
             s = perp(o, that->hint);
             rperp(o, that->hint) = qMax(s, perp(o, hint));
             ++count;
         }
 
         a[i].sizeHint = pick(o, hint);
         a[i].maximumSize = pick(o, max);
         a[i].minimumSize = pick(o, min);
         a[i].expansive = exp & o;
         if (o == Qt::Horizontal)
             a[i].stretch = item->widget()->sizePolicy().horizontalStretch();
         else
             a[i].stretch = item->widget()->sizePolicy().verticalStretch();
         a[i].empty = empty;
     }
 
     that->geomArray = a;
     that->empty = count == 0;
 
     rpick(o, that->minSize) += handleExtent;
     that->minSize += QSize(2*margin, 2*margin);
     if (items.count() > 1)
         rpick(o, that->minSize) += spacing + extensionExtent;
 
     rpick(o, that->hint) += handleExtent;
     that->hint += QSize(2*margin, 2*margin);
     that->dirty = false;
 #ifdef Q_WS_MAC
     if (QMainWindow *mw = qobject_cast<QMainWindow *>(parentWidget()->parentWidget())) {
         if (mw->unifiedTitleAndToolBarOnMac()
                 && mw->toolBarArea(static_cast<QToolBar *>(parentWidget())) == Qt::TopToolBarArea) {
             if (expandFlag) {
                 tb->setMaximumSize(0xFFFFFF, 0xFFFFFF);
             } else {
                tb->setMaximumSize(hint);
             }
         }
     }
 #endif
 
     that->dirty = false;
 }

◆ updateMarginAndSpacing()

void QToolBarLayout::updateMarginAndSpacing ( )

Definition at line 110 of file qtoolbarlayout.cpp.

Referenced by QToolBarPrivate::init().

 {
     QToolBar *tb = qobject_cast<QToolBar*>(parentWidget());
     if (!tb)
         return;
     QStyle *style = tb->style();
     QStyleOptionToolBar opt;
     tb->initStyleOption(&opt);
     setMargin(style->pixelMetric(QStyle::PM_ToolBarItemMargin, &opt, tb)
                 + style->pixelMetric(QStyle::PM_ToolBarFrameWidth, &opt, tb));
     setSpacing(style->pixelMetric(QStyle::PM_ToolBarItemSpacing, &opt, tb));
 }

Properties

◆ animating

bool QToolBarLayout::animating

Definition at line 105 of file qtoolbarlayout_p.h.

Referenced by QMainWindowLayout::animationFinished(), setExpanded(), and setGeometry().

◆ dirty

bool QToolBarLayout::dirty

private

Definition at line 120 of file qtoolbarlayout_p.h.

Referenced by expandedSize(), expandingDirections(), invalidate(), isEmpty(), layoutActions(), minimumSize(), setUsePopupMenu(), sizeHint(), and updateGeomArray().

◆ empty

bool QToolBarLayout::empty

private

Definition at line 120 of file qtoolbarlayout_p.h.

Referenced by expandedSize(), isEmpty(), layoutActions(), and updateGeomArray().

◆ expanded

bool QToolBarLayout::expanded

Definition at line 105 of file qtoolbarlayout_p.h.

Referenced by QMainWindowLayout::animationFinished(), QToolBarAreaLayout::apply(), layoutActions(), setExpanded(), and setGeometry().

◆ expandFlag

bool QToolBarLayout::expandFlag

private

Definition at line 120 of file qtoolbarlayout_p.h.

Referenced by hasExpandFlag(), and updateGeomArray().

◆ expanding

bool QToolBarLayout::expanding

private

Definition at line 120 of file qtoolbarlayout_p.h.

Referenced by expandingDirections(), and updateGeomArray().

◆ extension

QToolBarExtension* QToolBarLayout::extension

private

Definition at line 123 of file qtoolbarlayout_p.h.

Referenced by layoutActions(), QToolBarLayout(), setExpanded(), setGeometry(), and setUsePopupMenu().

◆ geomArray

QVector<QLayoutStruct> QToolBarLayout::geomArray

private

Definition at line 121 of file qtoolbarlayout_p.h.

Referenced by expandedSize(), layoutActions(), and updateGeomArray().

◆ handRect

QRect QToolBarLayout::handRect

private

Definition at line 122 of file qtoolbarlayout_p.h.

◆ hint

QSize QToolBarLayout::hint

private

Definition at line 119 of file qtoolbarlayout_p.h.

Referenced by setGeometry(), sizeHint(), and updateGeomArray().

◆ items

QList<QToolBarItem*> QToolBarLayout::items

private

Definition at line 118 of file qtoolbarlayout_p.h.

Referenced by count(), expandedSize(), indexOf(), insertAction(), itemAt(), layoutActions(), takeAt(), updateGeomArray(), and ~QToolBarLayout().

◆ minSize

QSize QToolBarLayout::minSize

private

Definition at line 119 of file qtoolbarlayout_p.h.

Referenced by minimumSize(), and updateGeomArray().

◆ popupMenu

QMenu* QToolBarLayout::popupMenu

private

Definition at line 127 of file qtoolbarlayout_p.h.

Referenced by layoutActions(), setUsePopupMenu(), and takeAt().

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

/src/gui/widgets/qtoolbarlayout_p.h
/src/gui/widgets/qtoolbarlayout.cpp

Public Slots

Public Functions

Public Variables

Private Functions

Properties

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QToolBarLayout()

◆ ~QToolBarLayout()

Functions

◆ addItem()

◆ checkUsePopupMenu()

◆ count()

◆ createItem()

◆ expandedSize()

◆ expandingDirections()

◆ hasExpandFlag()

◆ indexOf() [1/2]

◆ indexOf() [2/2]

◆ insertAction()

◆ invalidate()

◆ isEmpty()

◆ itemAt()

◆ layoutActions()

◆ minimumSize()

◆ movable()

◆ setExpanded

◆ setGeometry()

◆ setUsePopupMenu()

◆ sizeHint()

◆ takeAt()

◆ updateGeomArray()

◆ updateMarginAndSpacing()

Properties

◆ animating

◆ dirty

◆ empty

◆ expanded

◆ expandFlag

◆ expanding

◆ extension

◆ geomArray

◆ handRect

◆ hint

◆ items

◆ minSize

◆ popupMenu