#include <qdockwidget_p.h>

Inheritance diagram for QDockWidgetLayout:

Public Types
enum	Role { Content, CloseButton, FloatButton, TitleBar, RoleCount }

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

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

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

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

QLayoutItem *	itemForRole (Role r) const

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

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

int	minimumTitleWidth () const

bool	nativeWindowDeco () const

bool	nativeWindowDeco (bool floating) const

	QDockWidgetLayout (QWidget *parent=0)

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

void	setVerticalTitleBar (bool b)

void	setWidgetForRole (Role r, QWidget *w)

QSize	sizeFromContent (const QSize &content, bool floating) const

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...

QRect	titleArea () const

int	titleHeight () const

void	updateMaxSize ()

QWidget *	widgetForRole (Role r) const

	~QDockWidgetLayout ()

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...

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

QRect	geometry () const
	Reimplemented Function More...

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

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

void	invalidate ()
	Reimplemented Function More...

bool	isEmpty () const
	Reimplemented Function More...

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

QLayout *	layout ()
	Reimplemented Function More...

int	margin () const

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	verticalTitleBar

Properties
QRect	_titleArea

QVector< QLayoutItem * >	item_list

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. 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 131 of file qdockwidget_p.h.

Enumerations

◆ Role

enum QDockWidgetLayout::Role

Enumerator
Content
CloseButton
FloatButton
TitleBar
RoleCount

Definition at line 150 of file qdockwidget_p.h.

150 { Content, CloseButton, FloatButton, TitleBar, RoleCount };

QDockWidgetLayout::Content

Definition: qdockwidget_p.h:150

QDockWidgetLayout::FloatButton

Definition: qdockwidget_p.h:150

QDockWidgetLayout::RoleCount

Definition: qdockwidget_p.h:150

QDockWidgetLayout::TitleBar

Definition: qdockwidget_p.h:150

QDockWidgetLayout::CloseButton

Definition: qdockwidget_p.h:150

Constructors and Destructors

◆ QDockWidgetLayout()

QDockWidgetLayout::QDockWidgetLayout ( QWidget * parent = 0 )

Definition at line 193 of file qdockwidget.cpp.

     : QLayout(parent), verticalTitleBar(false), item_list(RoleCount, 0)
 {
 }

◆ ~QDockWidgetLayout()

QDockWidgetLayout::~QDockWidgetLayout ( )

Definition at line 198 of file qdockwidget.cpp.

 {
     qDeleteAll(item_list);
 }

Functions

◆ addItem()

void QDockWidgetLayout::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 219 of file qdockwidget.cpp.

 {
     qWarning() << "QDockWidgetLayout::addItem(): please use QDockWidgetLayout::setWidget()";
     return;
 }

◆ count()

int QDockWidgetLayout::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 255 of file qdockwidget.cpp.

 {
     int result = 0;
     for (int i = 0; i < item_list.count(); ++i) {
         if (item_list.at(i))
             ++result;
     }
     return result;
 }

◆ itemAt()

QLayoutItem * QDockWidgetLayout::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 225 of file qdockwidget.cpp.

 {
     int cnt = 0;
     for (int i = 0; i < item_list.count(); ++i) {
         QLayoutItem *item = item_list.at(i);
         if (item == 0)
             continue;
         if (index == cnt++)
             return item;
     }
     return 0;
 }

◆ itemForRole()

QLayoutItem * QDockWidgetLayout::itemForRole ( Role r ) const

Definition at line 371 of file qdockwidget.cpp.

 {
     return item_list.at(r);
 }

◆ maximumSize()

QSize QDockWidgetLayout::maximumSize ( ) const

virtual

Returns the maximum size of this layout.

This is the largest 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 343 of file qdockwidget.cpp.

 {
     if (item_list[Content] != 0) {
         const QSize content = item_list[Content]->maximumSize();
         return sizeFromContent(content, parentWidget()->isWindow());
     } else {
         return parentWidget()->maximumSize();
     }
 
 }

◆ minimumSize()

QSize QDockWidgetLayout::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 354 of file qdockwidget.cpp.

 {
     QDockWidget *w = qobject_cast<QDockWidget*>(parentWidget());
 
     QSize content(0, 0);
     if (item_list[Content] != 0)
         content = item_list[Content]->minimumSize();
 
     return sizeFromContent(content, w->isFloating());
 }

◆ minimumTitleWidth()

int QDockWidgetLayout::minimumTitleWidth ( ) const

Definition at line 405 of file qdockwidget.cpp.

Referenced by sizeFromContent().

 {
     QDockWidget *q = qobject_cast<QDockWidget*>(parentWidget());
 
     if (QWidget *title = widgetForRole(TitleBar))
         return pick(verticalTitleBar, title->minimumSizeHint());
 
     QSize closeSize(0, 0);
     QSize floatSize(0, 0);
     if (hasFeature(q, QDockWidget::DockWidgetClosable)) {
         if (QLayoutItem *item = item_list[CloseButton])
             closeSize = item->widget()->sizeHint();
     }
     if (hasFeature(q, QDockWidget::DockWidgetFloatable)) {
         if (QLayoutItem *item = item_list[FloatButton])
             floatSize = item->widget()->sizeHint();
     }
 
     int titleHeight = this->titleHeight();
 
     int mw = q->style()->pixelMetric(QStyle::PM_DockWidgetTitleMargin, 0, q);
     int fw = q->style()->pixelMetric(QStyle::PM_DockWidgetFrameWidth, 0, q);
 
     return pick(verticalTitleBar, closeSize)
             + pick(verticalTitleBar, floatSize)
             + titleHeight + 2*fw + 3*mw;
 }

◆ nativeWindowDeco() [1/2]

bool QDockWidgetLayout::nativeWindowDeco ( ) const

Definition at line 203 of file qdockwidget.cpp.

Referenced by dockedGeometry(), QDockWidgetPrivate::mouseDoubleClickEvent(), QDockWidgetPrivate::mouseMoveEvent(), QDockWidgetPrivate::mousePressEvent(), QDockWidget::paintEvent(), QMainWindowLayout::plug(), QDockWidget::setFeatures(), setGeometry(), QDockWidgetPrivate::setWindowState(), sizeFromContent(), QDockWidgetPrivate::unplug(), and QDockWidgetPrivate::updateButtons().

 {
     return nativeWindowDeco(parentWidget()->isWindow());
 }

◆ nativeWindowDeco() [2/2]

bool QDockWidgetLayout::nativeWindowDeco ( bool floating ) const

Definition at line 208 of file qdockwidget.cpp.

 {
 #if defined(Q_WS_X11) || defined(Q_WS_QWS) || defined(Q_WS_WINCE)
     Q_UNUSED(floating);
     return false;
 #else
     return floating && item_list[QDockWidgetLayout::TitleBar] == 0;
 #endif
 }

◆ setGeometry()

void QDockWidgetLayout::setGeometry ( const QRect & r )

virtual

Reimplemented Function

Reimplemented from QLayout.

Definition at line 464 of file qdockwidget.cpp.

 {
     QDockWidget *q = qobject_cast<QDockWidget*>(parentWidget());
 
     bool nativeDeco = nativeWindowDeco();
 
     int fw = q->isFloating() && !nativeDeco
             ? q->style()->pixelMetric(QStyle::PM_DockWidgetFrameWidth, 0, q)
             : 0;
 
     if (nativeDeco) {
         if (QLayoutItem *item = item_list[Content])
             item->setGeometry(geometry);
     } else {
         int titleHeight = this->titleHeight();
 
         if (verticalTitleBar) {
             _titleArea = QRect(QPoint(fw, fw),
                                 QSize(titleHeight, geometry.height() - (fw * 2)));
         } else {
             _titleArea = QRect(QPoint(fw, fw),
                                 QSize(geometry.width() - (fw * 2), titleHeight));
         }
 
         if (QLayoutItem *item = item_list[TitleBar]) {
             item->setGeometry(_titleArea);
         } else {
             QStyleOptionDockWidgetV2 opt;
             q->initStyleOption(&opt);
 
             if (QLayoutItem *item = item_list[CloseButton]) {
                 if (!item->isEmpty()) {
                     QRect r = q->style()
                         ->subElementRect(QStyle::SE_DockWidgetCloseButton,
                                             &opt, q);
                     if (!r.isNull())
                         item->setGeometry(r);
                 }
             }
 
             if (QLayoutItem *item = item_list[FloatButton]) {
                 if (!item->isEmpty()) {
                     QRect r = q->style()
                         ->subElementRect(QStyle::SE_DockWidgetFloatButton,
                                             &opt, q);
                     if (!r.isNull())
                         item->setGeometry(r);
                 }
             }
         }
 
         if (QLayoutItem *item = item_list[Content]) {
             QRect r = geometry;
             if (verticalTitleBar) {
                 r.setLeft(_titleArea.right() + 1);
                 r.adjust(0, fw, -fw, -fw);
             } else {
                 r.setTop(_titleArea.bottom() + 1);
                 r.adjust(fw, 0, -fw, -fw);
             }
             item->setGeometry(r);
         }
     }
 }

◆ setVerticalTitleBar()

void QDockWidgetLayout::setVerticalTitleBar ( bool b )

Definition at line 529 of file qdockwidget.cpp.

Referenced by QDockWidget::setFeatures().

 {
     if (b == verticalTitleBar)
         return;
     verticalTitleBar = b;
     invalidate();
     parentWidget()->update();
 }

◆ setWidgetForRole()

void QDockWidgetLayout::setWidgetForRole	(	Role	r,
		QWidget *	w
	)

Definition at line 376 of file qdockwidget.cpp.

Referenced by QDockWidgetPrivate::init(), QDockWidget::setTitleBarWidget(), and QDockWidget::setWidget().

 {
     QWidget *old = widgetForRole(r);
     if (old != 0) {
         old->hide();
         removeWidget(old);
     }
 
     if (w != 0) {
         addChildWidget(w);
         item_list[r] = new QWidgetItemV2(w);
         w->show();
     } else {
         item_list[r] = 0;
     }
 
     invalidate();
 }

◆ sizeFromContent()

QSize QDockWidgetLayout::sizeFromContent	(	const QSize &	content,
		bool	floating
	)		const

Definition at line 265 of file qdockwidget.cpp.

Referenced by maximumSize(), QDockWidgetItem::maximumSize(), minimumSize(), QDockWidgetItem::minimumSize(), sizeHint(), and QDockWidgetItem::sizeHint().

 {
     QSize result = content;
 
     if (verticalTitleBar) {
         result.setHeight(qMax(result.height(), minimumTitleWidth()));
         result.setWidth(qMax(content.width(), 0));
     } else {
         result.setHeight(qMax(result.height(), 0));
         result.setWidth(qMax(content.width(), minimumTitleWidth()));
     }
 
     QDockWidget *w = qobject_cast<QDockWidget*>(parentWidget());
     const bool nativeDeco = nativeWindowDeco(floating);
 
     int fw = floating && !nativeDeco
             ? w->style()->pixelMetric(QStyle::PM_DockWidgetFrameWidth, 0, w)
             : 0;
 
     const int th = titleHeight();
     if (!nativeDeco) {
         if (verticalTitleBar)
             result += QSize(th + 2*fw, 2*fw);
         else
             result += QSize(2*fw, th + 2*fw);
     }
 
     result.setHeight(qMin(result.height(), (int) QWIDGETSIZE_MAX));
     result.setWidth(qMin(result.width(), (int) QWIDGETSIZE_MAX));
 
     if (content.width() < 0)
         result.setWidth(-1);
     if (content.height() < 0)
         result.setHeight(-1);
 
     int left, top, right, bottom;
     w->getContentsMargins(&left, &top, &right, &bottom);
     //we need to substract the contents margin (it will be added by the caller)
     QSize min = w->minimumSize() - QSize(left + right, top + bottom);
     QSize max = w->maximumSize() - QSize(left + right, top + bottom);
 
     /* A floating dockwidget will automatically get its minimumSize set to the layout's
        minimum size + deco. We're *not* interested in this, we only take minimumSize()
        into account if the user set it herself. Otherwise we end up expanding the result
        of a calculation for a non-floating dock widget to a floating dock widget's
        minimum size + window decorations. */
 
     uint explicitMin = 0;
     uint explicitMax = 0;
     if (w->d_func()->extra != 0) {
         explicitMin = w->d_func()->extra->explicitMinSize;
         explicitMax = w->d_func()->extra->explicitMaxSize;
     }
 
     if (!(explicitMin & Qt::Horizontal) || min.width() == 0)
         min.setWidth(-1);
     if (!(explicitMin & Qt::Vertical) || min.height() == 0)
         min.setHeight(-1);
 
     if (!(explicitMax & Qt::Horizontal))
         max.setWidth(QWIDGETSIZE_MAX);
     if (!(explicitMax & Qt::Vertical))
         max.setHeight(QWIDGETSIZE_MAX);
 
     return result.boundedTo(max).expandedTo(min);
 }

◆ sizeHint()

QSize QDockWidgetLayout::sizeHint ( ) const

virtual

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

Implements QLayoutItem.

Definition at line 332 of file qdockwidget.cpp.

 {
     QDockWidget *w = qobject_cast<QDockWidget*>(parentWidget());
 
     QSize content(-1, -1);
     if (item_list[Content] != 0)
         content = item_list[Content]->sizeHint();
 
     return sizeFromContent(content, w->isFloating());
 }

◆ takeAt()

QLayoutItem * QDockWidgetLayout::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 238 of file qdockwidget.cpp.

 {
     int j = 0;
     for (int i = 0; i < item_list.count(); ++i) {
         QLayoutItem *item = item_list.at(i);
         if (item == 0)
             continue;
         if (index == j) {
             item_list[i] = 0;
             invalidate();
             return item;
         }
         ++j;
     }
     return 0;
 }

◆ titleArea()

QRect QDockWidgetLayout::titleArea ( ) const

inline

Definition at line 155 of file qdockwidget_p.h.

Referenced by QDockWidget::changeEvent(), QDockWidgetPrivate::initDrag(), QDockWidget::initStyleOption(), QDockWidgetPrivate::mouseDoubleClickEvent(), QDockWidgetPrivate::mousePressEvent(), QAccessibleDockWidget::rect(), and QAccessibleTitleBar::rect().

155 { return _titleArea; }

QDockWidgetLayout::_titleArea

QRect _titleArea

Definition: qdockwidget_p.h:169

◆ titleHeight()

int QDockWidgetLayout::titleHeight ( ) const

Definition at line 433 of file qdockwidget.cpp.

Referenced by dockedGeometry(), minimumTitleWidth(), QMainWindowLayout::plug(), setGeometry(), sizeFromContent(), and QDockWidgetPrivate::unplug().

 {
     QDockWidget *q = qobject_cast<QDockWidget*>(parentWidget());
 
     if (QWidget *title = widgetForRole(TitleBar))
         return perp(verticalTitleBar, title->sizeHint());
 
     QSize closeSize(0, 0);
     QSize floatSize(0, 0);
     if (QLayoutItem *item = item_list[CloseButton])
         closeSize = item->widget()->sizeHint();
     if (QLayoutItem *item = item_list[FloatButton])
         floatSize = item->widget()->sizeHint();
 
     int buttonHeight = qMax(perp(verticalTitleBar, closeSize),
                             perp(verticalTitleBar, floatSize));
 
     QFontMetrics titleFontMetrics = q->fontMetrics();
 #ifdef Q_WS_MAC
     if (qobject_cast<QMacStyle *>(q->style())) {
         //### this breaks on proxy styles.  (But is this code still called?)
         QFont font = qt_app_fonts_hash()->value("QToolButton", q->font());
         titleFontMetrics = QFontMetrics(font);
     }
 #endif
 
     int mw = q->style()->pixelMetric(QStyle::PM_DockWidgetTitleMargin, 0, q);
 
     return qMax(buttonHeight + 2, titleFontMetrics.height() + 2*mw);
 }

◆ updateMaxSize()

void QDockWidgetLayout::updateMaxSize ( )

◆ widgetForRole()

QWidget * QDockWidgetLayout::widgetForRole ( Role r ) const

Definition at line 365 of file qdockwidget.cpp.

Referenced by QAccessibleTitleBar::childCount(), QAccessibleTitleBar::doAction(), QDockWidgetPrivate::endDrag(), minimumTitleWidth(), QAccessibleTitleBar::navigate(), QDockWidget::paintEvent(), QAccessibleTitleBar::rect(), setWidgetForRole(), QAccessibleTitleBar::state(), QDockWidget::titleBarWidget(), titleHeight(), QDockWidgetPrivate::updateButtons(), and QDockWidget::widget().

 {
     QLayoutItem *item = item_list.at(r);
     return item == 0 ? 0 : item->widget();
 }

Properties

◆ _titleArea

QRect QDockWidgetLayout::_titleArea

private

Definition at line 169 of file qdockwidget_p.h.

Referenced by setGeometry().

◆ item_list

QVector<QLayoutItem*> QDockWidgetLayout::item_list

private

Definition at line 168 of file qdockwidget_p.h.

Referenced by count(), itemAt(), itemForRole(), maximumSize(), minimumSize(), minimumTitleWidth(), nativeWindowDeco(), setGeometry(), setWidgetForRole(), sizeHint(), takeAt(), titleHeight(), widgetForRole(), and ~QDockWidgetLayout().

◆ verticalTitleBar

bool QDockWidgetLayout::verticalTitleBar

Definition at line 165 of file qdockwidget_p.h.

Referenced by QDockWidget::initStyleOption(), minimumTitleWidth(), setGeometry(), setVerticalTitleBar(), sizeFromContent(), and titleHeight().

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

/src/gui/widgets/qdockwidget_p.h
/src/gui/widgets/qdockwidget.cpp

Public Types

Public Functions

Public Variables

Properties

Additional Inherited Members

Detailed Description

Enumerations

◆ Role

Constructors and Destructors

◆ QDockWidgetLayout()

◆ ~QDockWidgetLayout()

Functions

◆ addItem()

◆ count()

◆ itemAt()

◆ itemForRole()

◆ maximumSize()

◆ minimumSize()

◆ minimumTitleWidth()

◆ nativeWindowDeco() [1/2]

◆ nativeWindowDeco() [2/2]

◆ setGeometry()

◆ setVerticalTitleBar()

◆ setWidgetForRole()

◆ sizeFromContent()

◆ sizeHint()

◆ takeAt()

◆ titleArea()

◆ titleHeight()

◆ updateMaxSize()

◆ widgetForRole()

Properties

◆ _titleArea

◆ item_list

◆ verticalTitleBar