Qt 4.8
Public Functions | Private Functions | Properties | Friends | List of all members
QGraphicsAnchor Class Reference

The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout. More...

#include <qgraphicsanchorlayout.h>

Inheritance diagram for QGraphicsAnchor:
QObject

Public Functions

void setSizePolicy (QSizePolicy::Policy policy)
 
void setSpacing (qreal spacing)
 
QSizePolicy::Policy sizePolicy () const
 
qreal spacing () const
 
void unsetSpacing ()
 
 ~QGraphicsAnchor ()
 Removes the QGraphicsAnchor object from the layout and destroys it. 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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () 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 >
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 QMetaObjectmetaObject () 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
 
QObjectparent () 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...
 
QThreadthread () const
 Returns the thread in which the object lives. More...
 
QObjectUserDatauserData (uint id) const
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects. More...
 

Private Functions

 QGraphicsAnchor (QGraphicsAnchorLayout *parent)
 

Properties

QSizePolicy::Policy sizePolicy
 the size policy for the QGraphicsAnchor. More...
 
qreal spacing
 the preferred space between items in the QGraphicsAnchorLayout. More...
 

Friends

struct AnchorData
 
class QGraphicsAnchorLayoutPrivate
 

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 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 QObject
virtual void childEvent (QChildEvent *)
 This event handler can be reimplemented in a subclass to receive child events. More...
 
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...
 
QObjectsender () 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< QObjectDatad_ptr
 
- Static Protected Variables inherited from QObject
static const QMetaObject staticQtMetaObject
 

Detailed Description

The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.

Since
4.6

The graphics anchor provides an API that enables you to query and manipulate the properties an anchor has. When an anchor is added to the layout with QGraphicsAnchorLayout::addAnchor(), a QGraphicsAnchor instance is returned where the properties are initialized to their default values. The properties can then be further changed, and they will be picked up the next time the layout is activated.

See also
QGraphicsAnchorLayout::anchor()

Definition at line 61 of file qgraphicsanchorlayout.h.

Constructors and Destructors

◆ ~QGraphicsAnchor()

QGraphicsAnchor::~QGraphicsAnchor ( )

Removes the QGraphicsAnchor object from the layout and destroys it.

Definition at line 159 of file qgraphicsanchorlayout.cpp.

160 {
161 }

◆ QGraphicsAnchor()

QGraphicsAnchor::QGraphicsAnchor ( QGraphicsAnchorLayout parent)
private

Definition at line 148 of file qgraphicsanchorlayout.cpp.

150 {
152  Q_ASSERT(parentLayout);
153  d->layoutPrivate = parentLayout->d_func();
154 }
double d
Definition: qnumeric_p.h:62
The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.
#define Q_ASSERT(cond)
Definition: qglobal.h:1823
#define Q_D(Class)
Definition: qglobal.h:2482
Q_INVOKABLE QObject(QObject *parent=0)
Constructs an object with parent object parent.
Definition: qobject.cpp:753

Functions

◆ setSizePolicy()

void QGraphicsAnchor::setSizePolicy ( QSizePolicy::Policy  policy)

Definition at line 181 of file qgraphicsanchorlayout.cpp.

182 {
184  d->setSizePolicy(policy);
185 }
double d
Definition: qnumeric_p.h:62
The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.
#define Q_D(Class)
Definition: qglobal.h:2482

◆ setSpacing()

void QGraphicsAnchor::setSpacing ( qreal  spacing)

Definition at line 205 of file qgraphicsanchorlayout.cpp.

Referenced by QGraphicsAnchorLayoutPrivate::addAnchor().

206 {
208  d->setSpacing(spacing);
209 }
double d
Definition: qnumeric_p.h:62
qreal spacing() const
The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.
#define Q_D(Class)
Definition: qglobal.h:2482

◆ sizePolicy()

QSizePolicy::Policy QGraphicsAnchor::sizePolicy ( ) const

Referenced by setSizePolicy().

◆ spacing()

qreal QGraphicsAnchor::spacing ( ) const

Referenced by setSpacing().

◆ unsetSpacing()

void QGraphicsAnchor::unsetSpacing ( )

Definition at line 217 of file qgraphicsanchorlayout.cpp.

Referenced by QGraphicsAnchorLayoutPrivate::addAnchor().

218 {
220  d->unsetSpacing();
221 }
double d
Definition: qnumeric_p.h:62
The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.
#define Q_D(Class)
Definition: qglobal.h:2482

Friends and Related Functions

◆ AnchorData

friend struct AnchorData
friend

Definition at line 79 of file qgraphicsanchorlayout.h.

◆ QGraphicsAnchorLayoutPrivate

Definition at line 78 of file qgraphicsanchorlayout.h.

Properties

◆ sizePolicy

QSizePolicy::Policy QGraphicsAnchor::sizePolicy
private

the size policy for the QGraphicsAnchor.

By setting the size policy on an anchor you can configure how the anchor can resize itself from its preferred spacing. For instance, if the anchor has the size policy QSizePolicy::Minimum, the spacing is the minimum size of the anchor. However, its size can grow up to the anchors maximum size. If the default size policy is QSizePolicy::Fixed, the anchor can neither grow or shrink, which means that the only size the anchor can have is the spacing. QSizePolicy::Fixed is the default size policy. QGraphicsAnchor always has a minimum spacing of 0 and a very large maximum spacing.

See also
QGraphicsAnchor::spacing

Definition at line 65 of file qgraphicsanchorlayout.h.

◆ spacing

qreal QGraphicsAnchor::spacing
private

the preferred space between items in the QGraphicsAnchorLayout.

Depending on the anchor type, the default spacing is either 0 or a value returned from the style.

See also
QGraphicsAnchorLayout::addAnchor()

Definition at line 64 of file qgraphicsanchorlayout.h.


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