KDChart::AbstractArea Class Reference

An area in the chart with a background, a frame, etc. More...

#include <KDChartAbstractArea.h>

Inheritance diagram for KDChart::AbstractArea:

Collaboration diagram for KDChart::AbstractArea:

Signals
void	positionChanged (AbstractArea *)

Public Member Functions
	~AbstractArea () override
virtual int	bottomOverlap (bool doNotRecalculate=false) const
virtual int	leftOverlap (bool doNotRecalculate=false) const
void	paintAll (QPainter &painter) override
virtual void	paintIntoRect (QPainter &painter, const QRect &rect)
	Draws the background and frame, then calls paint().
virtual int	rightOverlap (bool doNotRecalculate=false) const
virtual int	topOverlap (bool doNotRecalculate=false) const
Public Member Functions inherited from QObject
	QObject (QObject *parent)
virtual	~QObject ()
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo ()
void	dumpObjectInfo () const const
void	dumpObjectTree ()
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_DISABLE_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThread *	thread () const const
Public Member Functions inherited from KDChart::AbstractAreaBase
void	alignToReferencePoint (const RelativePosition &position)
BackgroundAttributes	backgroundAttributes () const
bool	compare (const AbstractAreaBase *other) const
FrameAttributes	frameAttributes () const
void	getFrameLeadings (int &left, int &top, int &right, int &bottom) const
virtual void	paintBackground (QPainter &painter, const QRect &rectangle)
virtual void	paintFrame (QPainter &painter, const QRect &rectangle)
void	setBackgroundAttributes (const BackgroundAttributes &a)
void	setFrameAttributes (const FrameAttributes &a)
Public Member Functions inherited from KDChart::AbstractLayoutItem
	AbstractLayoutItem (Qt::Alignment itemAlignment={})
virtual void	paint (QPainter *)=0
virtual void	paintCtx (PaintContext *context)
QLayout *	parentLayout ()
void	removeFromParentLayout ()
void	setParentLayout (QLayout *lay)
virtual void	setParentWidget (QWidget *widget)
virtual void	sizeHintChanged () const
Public Member Functions inherited from QLayoutItem
	QLayoutItem (Qt::Alignment alignment)
virtual	~QLayoutItem ()
Qt::Alignment	alignment () const const
virtual QSizePolicy::ControlTypes	controlTypes () const const
virtual Qt::Orientations	expandingDirections () const const=0
virtual QRect	geometry () const const=0
virtual bool	hasHeightForWidth () const const
virtual int	heightForWidth (int) const const
virtual void	invalidate ()
virtual bool	isEmpty () const const=0
virtual QLayout *	layout ()
virtual QSize	maximumSize () const const=0
virtual int	minimumHeightForWidth (int w) const const
virtual QSize	minimumSize () const const=0
void	setAlignment (Qt::Alignment alignment)
virtual void	setGeometry (const QRect &r)=0
virtual QSize	sizeHint () const const=0
virtual QSpacerItem *	spacerItem ()
virtual QWidget *	widget ()

Protected Member Functions
	AbstractArea ()
QRect	areaGeometry () const override
void	positionHasChanged () override
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)
Protected Member Functions inherited from KDChart::AbstractAreaBase
	AbstractAreaBase ()
virtual	~AbstractAreaBase ()
QRect	innerRect () const

Additional Inherited Members
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
QString	trUtf8 (const char *sourceText, const char *disambiguation, int n)
Static Public Member Functions inherited from KDChart::AbstractAreaBase
static void	paintBackgroundAttributes (QPainter &painter, const QRect &rectangle, const KDChart::BackgroundAttributes &attributes)
static void	paintFrameAttributes (QPainter &painter, const QRect &rectangle, const KDChart::FrameAttributes &attributes)
Public Attributes inherited from QObject
typedef	QObjectList
Protected Attributes inherited from KDChart::AbstractLayoutItem
QWidget *	mParent = nullptr
QLayout *	mParentLayout = nullptr
Properties inherited from QObject
	objectName

Detailed Description

An area in the chart with a background, a frame, etc.

AbstractArea is the base class for all non-widget chart elements that have a set of background attributes and frame attributes, such as coordinate planes or axes.

Note

This class inherits from AbstractAreaBase, AbstractLayoutItem, QObject. The reason for this triple inheritance is that neither AbstractAreaBase nor AbstractLayoutItem are QObject.

Definition at line 34 of file KDChartAbstractArea.h.

Constructor & Destructor Documentation

~AbstractArea()

AbstractArea::~AbstractArea ( )

override

Definition at line 44 of file KDChartAbstractArea.cpp.

AbstractArea()

AbstractArea::AbstractArea ( )

protected

Definition at line 36 of file KDChartAbstractArea.cpp.

Member Function Documentation

areaGeometry()

QRect AbstractArea::areaGeometry ( ) const

overrideprotectedvirtual

Implements KDChart::AbstractAreaBase.

Definition at line 133 of file KDChartAbstractArea.cpp.

References QLayoutItem::geometry().

Referenced by KDChart::CartesianCoordinatePlane::drawingArea(), KDChart::PolarCoordinatePlane::layoutDiagrams(), KDChart::TernaryCoordinatePlane::layoutDiagrams(), KDChart::CartesianAxis::paint(), KDChart::TernaryCoordinatePlane::paint(), paintAll(), and KDChart::CartesianAxis::paintCtx().

bottomOverlap()

int AbstractArea::bottomOverlap ( bool  doNotRecalculate = false ) const

virtual

This is called at layout time by KDChart:AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the bottom edge of the area.

Note

The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 81 of file KDChartAbstractArea.cpp.

References d, QObject::qobject_cast(), and QLayoutItem::sizeHint().

leftOverlap()

int AbstractArea::leftOverlap ( bool  doNotRecalculate = false ) const

virtual

This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the left edge of the area.

Note

The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 57 of file KDChartAbstractArea.cpp.

References d, QObject::qobject_cast(), and QLayoutItem::sizeHint().

paintAll()

void AbstractArea::paintAll ( QPainter &  painter )

overridevirtual

Call paintAll, if you want the background and the frame to be drawn before the normal paint() is invoked automatically.

Reimplemented from KDChart::AbstractLayoutItem.

Reimplemented in KDChart::TernaryAxis.

Definition at line 102 of file KDChartAbstractArea.cpp.

References areaGeometry(), QObject::blockSignals(), d, QLayoutItem::geometry(), KDChart::AbstractAreaBase::innerRect(), KDChart::AbstractLayoutItem::paint(), KDChart::AbstractAreaBase::paintBackground(), KDChart::AbstractAreaBase::paintFrame(), QObject::qobject_cast(), QLayoutItem::setGeometry(), and QObject::signalsBlocked().

Referenced by paintIntoRect().

paintIntoRect()

void AbstractArea::paintIntoRect ( QPainter &  painter, const QRect &  rect  )

virtual

Draws the background and frame, then calls paint().

In most cases there is no need to overwrite this method in a derived class, but you would overwrite AbstractLayoutItem::paint() instead.

Definition at line 90 of file KDChartAbstractArea.cpp.

References QLayoutItem::geometry(), QRect::left(), paintAll(), QObject::qobject_cast(), QLayoutItem::setGeometry(), QRect::top(), and QPainter::translate().

positionChanged

void KDChart::AbstractArea::positionChanged ( AbstractArea *  )

signal

Referenced by positionHasChanged().

positionHasChanged()

void AbstractArea::positionHasChanged ( )

overrideprotectedvirtual

Reimplemented from KDChart::AbstractAreaBase.

Definition at line 138 of file KDChartAbstractArea.cpp.

References positionChanged(), and QObject::Q_EMIT().

rightOverlap()

int AbstractArea::rightOverlap ( bool  doNotRecalculate = false ) const

virtual

This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the right edge of the area.

Note

The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 65 of file KDChartAbstractArea.cpp.

References d, QObject::qobject_cast(), and QLayoutItem::sizeHint().

topOverlap()

int AbstractArea::topOverlap ( bool  doNotRecalculate = false ) const

virtual

This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the top edge of the area.

Note

The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 73 of file KDChartAbstractArea.cpp.

References d, QObject::qobject_cast(), and QLayoutItem::sizeHint().

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

• KDChartAbstractArea.h
• KDChartAbstractArea.cpp