QCPLayoutElement Class Reference

Inheritance diagram for QCPLayoutElement:

Public Types
enum	SizeConstraintRect { scrInnerRect , scrOuterRect }
enum	UpdatePhase { upPreparation , upMargins , upLayout }
Public Types inherited from QObject
typedef	QObjectList

Public Member Functions
	QCPLayoutElement (QCustomPlot *parentPlot=nullptr)
QCP::MarginSides	autoMargins () const
virtual QList< QCPLayoutElement * >	elements (bool recursive) const
QCPLayout *	layout () const
QCPMarginGroup *	marginGroup (QCP::MarginSide side) const
QHash< QCP::MarginSide, QCPMarginGroup * >	marginGroups () const
QMargins	margins () const
virtual QSize	maximumOuterSizeHint () const
QSize	maximumSize () const
QMargins	minimumMargins () const
virtual QSize	minimumOuterSizeHint () const
QSize	minimumSize () const
QRect	outerRect () const
QRect	rect () const
virtual double	selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=nullptr) const override
void	setAutoMargins (QCP::MarginSides sides)
void	setMarginGroup (QCP::MarginSides sides, QCPMarginGroup *group)
void	setMargins (const QMargins &margins)
void	setMaximumSize (const QSize &size)
void	setMaximumSize (int width, int height)
void	setMinimumMargins (const QMargins &margins)
void	setMinimumSize (const QSize &size)
void	setMinimumSize (int width, int height)
void	setOuterRect (const QRect &rect)
void	setSizeConstraintRect (SizeConstraintRect constraintRect)
SizeConstraintRect	sizeConstraintRect () const
virtual void	update (UpdatePhase phase)
Public Member Functions inherited from QCPLayerable
	QCPLayerable (QCustomPlot *plot, QString targetLayer=QString(), QCPLayerable *parentLayerable=nullptr)
bool	antialiased () const
QCPLayer *	layer () const
QCPLayerable *	parentLayerable () const
QCustomPlot *	parentPlot () const
bool	realVisibility () const
void	setAntialiased (bool enabled)
bool	setLayer (const QString &layerName)
Q_SLOT bool	setLayer (QCPLayer *layer)
void	setVisible (bool on)
bool	visible () const
Public Member Functions inherited from QObject
	QObject (QObject *parent)
QBindable< QString >	bindableObjectName ()
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 () const const
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 QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isQuickItemType () const const
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_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_GADGET_EXPORT (EXPORT_MACRO)
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_MOC_INCLUDE Q_MOC_INCLUDE
	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	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	setObjectName (QAnyStringView name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	setProperty (const char *name, QVariant &&value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
QThread *	thread () const const

Protected Member Functions
virtual void	applyDefaultAntialiasingHint (QCPPainter *painter) const override
virtual int	calculateAutoMargin (QCP::MarginSide side)
virtual void	draw (QCPPainter *painter) override
virtual void	layoutChanged ()
virtual void	parentPlotInitialized (QCustomPlot *parentPlot) override
Protected Member Functions inherited from QCPLayerable
void	applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const
virtual QRect	clipRect () const
virtual void	deselectEvent (bool *selectionStateChanged)
void	initializeParentPlot (QCustomPlot *parentPlot)
virtual void	mouseDoubleClickEvent (QMouseEvent *event, const QVariant &details)
virtual void	mouseMoveEvent (QMouseEvent *event, const QPointF &startPos)
virtual void	mousePressEvent (QMouseEvent *event, const QVariant &details)
virtual void	mouseReleaseEvent (QMouseEvent *event, const QPointF &startPos)
bool	moveToLayer (QCPLayer *layer, bool prepend)
virtual void	selectEvent (QMouseEvent *event, bool additive, const QVariant &details, bool *selectionStateChanged)
virtual QCP::Interaction	selectionCategory () const
void	setParentLayerable (QCPLayerable *parentLayerable)
virtual void	wheelEvent (QWheelEvent *event)
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 Attributes
QCP::MarginSides	mAutoMargins
QHash< QCP::MarginSide, QCPMarginGroup * >	mMarginGroups
QMargins	mMargins
QSize	mMaximumSize
QMargins	mMinimumMargins
QSize	mMinimumSize
QRect	mOuterRect
QCPLayout *	mParentLayout
QRect	mRect
SizeConstraintRect	mSizeConstraintRect
Protected Attributes inherited from QCPLayerable
bool	mAntialiased
QCPLayer *	mLayer
QPointer< QCPLayerable >	mParentLayerable
QCustomPlot *	mParentPlot
bool	mVisible

Additional Inherited Members
Properties inherited from QObject
	objectName
Signals inherited from QCPLayerable
void	layerChanged (QCPLayer *newLayer)
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)

Detailed Description

The abstract base class for all objects that form the layout system.

This is an abstract base class. As such, it can't be instantiated directly, rather use one of its subclasses.

A Layout element is a rectangular object which can be placed in layouts. It has an outer rect (QCPLayoutElement::outerRect) and an inner rect (QCPLayoutElement::rect). The difference between outer and inner rect is called its margin. The margin can either be set to automatic or manual (setAutoMargins) on a per-side basis. If a side is set to manual, that margin can be set explicitly with setMargins and will stay fixed at that value. If it's set to automatic, the layout element subclass will control the value itself (via calculateAutoMargin).

Layout elements can be placed in layouts (base class QCPLayout) like QCPLayoutGrid. The top level layout is reachable via QCustomPlot::plotLayout, and is a QCPLayoutGrid. Since QCPLayout itself derives from QCPLayoutElement, layouts can be nested.

Thus in QCustomPlot one can divide layout elements into two categories: The ones that are invisible by themselves, because they don't draw anything. Their only purpose is to manage the position and size of other layout elements. This category of layout elements usually use QCPLayout as base class. Then there is the category of layout elements which actually draw something. For example, QCPAxisRect, QCPLegend and QCPTextElement are of this category. This does not necessarily mean that the latter category can't have child layout elements. QCPLegend for instance, actually derives from QCPLayoutGrid and the individual legend items are child layout elements in the grid layout.

Definition at line 1238 of file qcustomplot.h.

Member Enumeration Documentation

SizeConstraintRect

enum QCPLayoutElement::SizeConstraintRect

Defines to which rect of a layout element the size constraints that can be set via setMinimumSize and setMaximumSize apply. The outer rect (outerRect) includes the margins (e.g. in the case of a QCPAxisRect the axis labels), whereas the inner rect (rect) does not.

See also

setSizeConstraintRect

Enumerator
scrInnerRect	Minimum/Maximum size constraints apply to inner rect.
scrOuterRect	Minimum/Maximum size constraints apply to outer rect, thus include layout element margins.

Definition at line 1270 of file qcustomplot.h.

UpdatePhase

enum QCPLayoutElement::UpdatePhase

Defines the phases of the update process, that happens just before a replot. At each phase, Update your custom dialog is called with the according UpdatePhase value.

Enumerator
upPreparation	Phase used for any type of preparation that needs to be done before margin calculation and layout.
upMargins	Phase in which the margins are calculated and set.
upLayout	Final phase in which the layout system places the rects of the elements.

Definition at line 1256 of file qcustomplot.h.

Constructor & Destructor Documentation

QCPLayoutElement()

QCPLayoutElement::QCPLayoutElement ( QCustomPlot * parentPlot = nullptr )

explicit

Creates an instance of QCPLayoutElement and sets default values.

Definition at line 3207 of file qcustomplot.cpp.

~QCPLayoutElement()

QCPLayoutElement::~QCPLayoutElement ( )

overridevirtual

Definition at line 3221 of file qcustomplot.cpp.

Member Function Documentation

applyDefaultAntialiasingHint()

virtual void QCPLayoutElement::applyDefaultAntialiasingHint ( QCPPainter * painter ) const

inlineoverrideprotectedvirtual

This function applies the default antialiasing setting to the specified painter, using the function applyAntialiasingHint. It is the antialiasing state the painter is put in, when draw is called on the layerable. If the layerable has multiple entities whose antialiasing setting may be specified individually, this function should set the antialiasing state of the most prominent entity. In this case however, the draw function usually calls the specialized versions of this function before drawing each entity, effectively overriding the setting of the default antialiasing hint.

First example: QCPGraph has multiple entities that have an antialiasing setting: The graph line, fills and scatters. Those can be configured via QCPGraph::setAntialiased, QCPGraph::setAntialiasedFill and QCPGraph::setAntialiasedScatters. Consequently, there isn't only the QCPGraph::applyDefaultAntialiasingHint function (which corresponds to the graph line's antialiasing), but specialized ones like QCPGraph::applyFillAntialiasingHint and QCPGraph::applyScattersAntialiasingHint. So before drawing one of those entities, QCPGraph::draw calls the respective specialized applyAntialiasingHint function.

Second example: QCPItemLine consists only of a line so there is only one antialiasing setting which can be controlled with QCPItemLine::setAntialiased. (This function is inherited by all layerables. The specialized functions, as seen on QCPGraph, must be added explicitly to the respective layerable subclass.) Consequently it only has the normal QCPItemLine::applyDefaultAntialiasingHint. The QCPItemLine::draw function doesn't need to care about setting any antialiasing states, because the default antialiasing hint is already set on the painter when the draw function is called, and that's the state it wants to draw the line with.

Implements QCPLayerable.

Reimplemented in QCPAbstractLegendItem, QCPAxisRect, QCPColorScale, QCPLegend, QCPPolarAxisAngular, and QCPTextElement.

Definition at line 1327 of file qcustomplot.h.

autoMargins()

QCP::MarginSides QCPLayoutElement::autoMargins ( ) const

inline

Definition at line 1284 of file qcustomplot.h.

calculateAutoMargin()

int QCPLayoutElement::calculateAutoMargin ( QCP::MarginSide side )

protectedvirtual

Returns the margin size for this side. It is used if automatic margins is enabled for this side (see setAutoMargins). If a minimum margin was set with setMinimumMargins, the returned value will not be smaller than the specified minimum margin.

The default implementation just returns the respective manual margin (setMargins) or the minimum margin, whichever is larger.

Reimplemented in QCPAxisRect, and QCPColorScaleAxisRectPrivate.

Definition at line 3568 of file qcustomplot.cpp.

draw()

virtual void QCPLayoutElement::draw ( QCPPainter * painter )

inlineoverrideprotectedvirtual

This function draws the layerable with the specified painter. It is only called by QCustomPlot, if the layerable is visible (setVisible).

Before this function is called, the painter's antialiasing state is set via applyDefaultAntialiasingHint, see the documentation there. Further, the clipping rectangle was set to clipRect.

Implements QCPLayerable.

Reimplemented in QCPAbstractLegendItem, QCPAxisRect, QCPColorScaleAxisRectPrivate, QCPLegend, QCPPlottableLegendItem, QCPPolarAxisAngular, QCPPolarLegendItem, and QCPTextElement.

Definition at line 1328 of file qcustomplot.h.

elements()

QList< QCPLayoutElement * > QCPLayoutElement::elements ( bool recursive ) const

virtual

Returns a list of all child elements in this layout element. If recursive is true, all sub-child elements are included in the list, too.

Warning

There may be nullptr entries in the returned list. For example, QCPLayoutGrid may have empty cells which yield nullptr at the respective index.

Reimplemented in QCPAxisRect, QCPLayout, QCPLayoutGrid, and QCPPolarAxisAngular.

Definition at line 3508 of file qcustomplot.cpp.

layout()

QCPLayout * QCPLayoutElement::layout ( ) const

inline

Returns the parent layout of this layout element.

Definition at line 1279 of file qcustomplot.h.

layoutChanged()

void QCPLayoutElement::layoutChanged ( )

protectedvirtual

This virtual method is called when this layout element was moved to a different QCPLayout, or when this layout element has changed its logical position (e.g. row and/or column) within the same QCPLayout. Subclasses may use this to react accordingly.

Since this method is called after the completion of the move, you can access the new parent layout via layout().

The default implementation does nothing.

Reimplemented in QCPAxisRect.

Definition at line 3584 of file qcustomplot.cpp.

marginGroup()

QCPMarginGroup * QCPLayoutElement::marginGroup ( QCP::MarginSide side ) const

inline

Definition at line 1288 of file qcustomplot.h.

marginGroups()

QHash< QCP::MarginSide, QCPMarginGroup * > QCPLayoutElement::marginGroups ( ) const

inline

Definition at line 1289 of file qcustomplot.h.

margins()

QMargins QCPLayoutElement::margins ( ) const

inline

Definition at line 1282 of file qcustomplot.h.

maximumOuterSizeHint()

QSize QCPLayoutElement::maximumOuterSizeHint ( ) const

virtual

Returns the suggested maximum size this layout element (the outerRect) may be expanded to, if no manual maximum size is set.

if a maximum size (setMaximumSize) was not set manually, parent layouts use the returned size (usually indirectly through QCPLayout::getFinalMaximumOuterSize) to determine the maximum allowed size of this layout element.

A manual maximum size is considered set if it is smaller than Qt's QWIDGETSIZE_MAX.

The default implementation simply returns QWIDGETSIZE_MAX for both width and height, implying no suggested maximum size. Reimplementations may use their detailed knowledge about the layout element's content to provide size hints.

Reimplemented in QCPLayoutGrid, and QCPTextElement.

Definition at line 3496 of file qcustomplot.cpp.

maximumSize()

QSize QCPLayoutElement::maximumSize ( ) const

inline

Definition at line 1286 of file qcustomplot.h.

minimumMargins()

QMargins QCPLayoutElement::minimumMargins ( ) const

inline

Definition at line 1283 of file qcustomplot.h.

minimumOuterSizeHint()

QSize QCPLayoutElement::minimumOuterSizeHint ( ) const

virtual

Returns the suggested minimum size this layout element (the outerRect) may be compressed to, if no manual minimum size is set.

if a minimum size (setMinimumSize) was not set manually, parent layouts use the returned size (usually indirectly through QCPLayout::getFinalMinimumOuterSize) to determine the minimum allowed size of this layout element.

A manual minimum size is considered set if it is non-zero.

The default implementation simply returns the sum of the horizontal margins for the width and the sum of the vertical margins for the height. Reimplementations may use their detailed knowledge about the layout element's content to provide size hints.

Reimplemented in QCPLayoutGrid, QCPPlottableLegendItem, QCPPolarLegendItem, and QCPTextElement.

Definition at line 3477 of file qcustomplot.cpp.

minimumSize()

QSize QCPLayoutElement::minimumSize ( ) const

inline

Definition at line 1285 of file qcustomplot.h.

outerRect()

QRect QCPLayoutElement::outerRect ( ) const

inline

Returns the outer rect of this layout element. The outer rect is the inner rect expanded by the margins (setMargins, setAutoMargins). The outer rect is used (and set via setOuterRect) by the parent QCPLayout to control the size of this layout element.

See also

rect

Definition at line 1281 of file qcustomplot.h.

parentPlotInitialized()

void QCPLayoutElement::parentPlotInitialized ( QCustomPlot * parentPlot )

overrideprotectedvirtual

propagates the parent plot initialization to all child elements, by calling QCPLayerable::initializeParentPlot on them.

Reimplemented from QCPLayerable.

Reimplemented in QCPLegend.

Definition at line 3550 of file qcustomplot.cpp.

rect()

QRect QCPLayoutElement::rect ( ) const

inline

Returns the inner rect of this layout element. The inner rect is the outer rect (outerRect, setOuterRect) shrinked by the margins (setMargins, setAutoMargins).

In some cases, the area between outer and inner rect is left blank. In other cases the margin area is used to display peripheral graphics while the main content is in the inner rect. This is where automatic margin calculation becomes interesting because it allows the layout element to adapt the margins to the peripheral graphics it wants to draw. For example, QCPAxisRect draws the axis labels and tick labels in the margin area, thus needs to adjust the margins (if setAutoMargins is enabled) according to the space required by the labels of the axes.

See also

outerRect

Definition at line 1280 of file qcustomplot.h.

selectTest()

double QCPLayoutElement::selectTest ( const QPointF & pos, bool onlySelectable, QVariant * details = nullptr ) const

overridevirtual

Layout elements are sensitive to events inside their outer rect. If pos is within the outer rect, this method returns a value corresponding to 0.99 times the parent plot's selection tolerance. However, layout elements are not selectable by default. So if onlySelectable is true, -1.0 is returned.

See QCPLayerable::selectTest for a general explanation of this virtual method.

QCPLayoutElement subclasses may reimplement this method to provide more specific selection test behaviour.

Reimplemented from QCPLayerable.

Reimplemented in QCPAbstractLegendItem, QCPLayoutInset, QCPLegend, QCPPolarAxisAngular, and QCPTextElement.

Definition at line 3525 of file qcustomplot.cpp.

setAutoMargins()

void QCPLayoutElement::setAutoMargins

(

QCP::MarginSides

sides

)

Sets on which sides the margin shall be calculated automatically. If a side is calculated automatically, a minimum margin value may be provided with setMinimumMargins. If a side is set to be controlled manually, the value may be specified with setMargins.

Margin sides that are under automatic control may participate in a QCPMarginGroup (see setMarginGroup), to synchronize (align) it with other layout elements in the plot.

See also

setMinimumMargins, setMargins, QCP::MarginSide

Definition at line 3296 of file qcustomplot.cpp.

setMarginGroup()

void QCPLayoutElement::setMarginGroup	(	QCP::MarginSides	sides,
		QCPMarginGroup *	group )

Sets the margin group of the specified margin sides.

Margin groups allow synchronizing specified margins across layout elements, see the documentation of QCPMarginGroup.

To unset the margin group of sides, set group to nullptr.

Note that margin groups only work for margin sides that are set to automatic (setAutoMargins).

See also

QCP::MarginSide

Definition at line 3396 of file qcustomplot.cpp.

setMargins()

void QCPLayoutElement::setMargins

(

const QMargins &

margins

)

Sets the margins of this layout element. If setAutoMargins is disabled for some or all sides, this function is used to manually set the margin on those sides. Sides that are still set to be handled automatically are ignored and may have any value in margins.

The margin is the distance between the outer rect (controlled by the parent layout via setOuterRect) and the inner rect (which usually contains the main content of this layout element).

See also

setAutoMargins

Definition at line 3260 of file qcustomplot.cpp.

setMaximumSize() [1/2]

void QCPLayoutElement::setMaximumSize

(

const QSize &

size

)

Sets the maximum size of this layout element. A parent layout tries to respect the size here by changing row/column sizes in the layout accordingly.

Whether this constraint applies to the inner or the outer rect can be specified with setSizeConstraintRect (see rect and outerRect).

Definition at line 3342 of file qcustomplot.cpp.

setMaximumSize() [2/2]

void QCPLayoutElement::setMaximumSize	(	int	width,
		int	height )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Sets the maximum size of this layout element.

Whether this constraint applies to the inner or the outer rect can be specified with setSizeConstraintRect (see rect and outerRect).

Definition at line 3359 of file qcustomplot.cpp.

setMinimumMargins()

void QCPLayoutElement::setMinimumMargins

(

const QMargins &

margins

)

If setAutoMargins is enabled on some or all margins, this function is used to provide minimum values for those margins.

The minimum values are not enforced on margin sides that were set to be under manual control via setAutoMargins.

See also

setAutoMargins

Definition at line 3278 of file qcustomplot.cpp.

setMinimumSize() [1/2]

void QCPLayoutElement::setMinimumSize

(

const QSize &

size

)

Sets the minimum size of this layout element. A parent layout tries to respect the size here by changing row/column sizes in the layout accordingly.

If the parent layout size is not sufficient to satisfy all minimum size constraints of its child layout elements, the layout may set a size that is actually smaller than size. QCustomPlot propagates the layout's size constraints to the outside by setting its own minimum QWidget size accordingly, so violations of size should be exceptions.

Whether this constraint applies to the inner or the outer rect can be specified with setSizeConstraintRect (see rect and outerRect).

Definition at line 3313 of file qcustomplot.cpp.

setMinimumSize() [2/2]

void QCPLayoutElement::setMinimumSize	(	int	width,
		int	height )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Sets the minimum size of this layout element.

Whether this constraint applies to the inner or the outer rect can be specified with setSizeConstraintRect (see rect and outerRect).

Definition at line 3330 of file qcustomplot.cpp.

setOuterRect()

void QCPLayoutElement::setOuterRect

(

const QRect &

rect

)

Sets the outer rect of this layout element. If the layout element is inside a layout, the layout sets the position and size of this layout element using this function.

Calling this function externally has no effect, since the layout will overwrite any changes to the outer rect upon the next replot.

The layout element will adapt its inner rect by applying the margins inward to the outer rect.

See also

rect

Definition at line 3240 of file qcustomplot.cpp.

setSizeConstraintRect()

void QCPLayoutElement::setSizeConstraintRect

(

SizeConstraintRect

constraintRect

)

Sets to which rect of a layout element the size constraints apply. Size constraints can be set via setMinimumSize and setMaximumSize.

The outer rect (outerRect) includes the margins (e.g. in the case of a QCPAxisRect the axis labels), whereas the inner rect (rect) does not.

See also

setMinimumSize, setMaximumSize

Definition at line 3373 of file qcustomplot.cpp.

sizeConstraintRect()

SizeConstraintRect QCPLayoutElement::sizeConstraintRect ( ) const

inline

Definition at line 1287 of file qcustomplot.h.

update()

void QCPLayoutElement::update ( UpdatePhase phase )

virtual

Updates the layout element and sub-elements. This function is automatically called before every replot by the parent layout element. It is called multiple times, once for every UpdatePhase. The phases are run through in the order of the enum values. For details about what happens at the different phases, see the documentation of UpdatePhase.

Layout elements that have child elements should call the Update your custom dialog method of their child elements, and pass the current phase unchanged.

The default implementation executes the automatic margin mechanism in the upMargins phase. Subclasses should make sure to call the base class implementation.

Reimplemented in QCPAxisRect, QCPColorScale, QCPColorScaleAxisRectPrivate, QCPLayout, and QCPPolarAxisAngular.

Definition at line 3436 of file qcustomplot.cpp.

Member Data Documentation

mAutoMargins

QCP::MarginSides QCPLayoutElement::mAutoMargins

protected

Definition at line 1319 of file qcustomplot.h.

mMarginGroups

QHash<QCP::MarginSide, QCPMarginGroup*> QCPLayoutElement::mMarginGroups

protected

Definition at line 1320 of file qcustomplot.h.

mMargins

QMargins QCPLayoutElement::mMargins

protected

Definition at line 1318 of file qcustomplot.h.

mMaximumSize

QSize QCPLayoutElement::mMaximumSize

protected

Definition at line 1315 of file qcustomplot.h.

mMinimumMargins

QMargins QCPLayoutElement::mMinimumMargins

protected

Definition at line 1318 of file qcustomplot.h.

mMinimumSize

QSize QCPLayoutElement::mMinimumSize

protected

Definition at line 1315 of file qcustomplot.h.

mOuterRect

QRect QCPLayoutElement::mOuterRect

protected

Definition at line 1317 of file qcustomplot.h.

mParentLayout

QCPLayout* QCPLayoutElement::mParentLayout

protected

Definition at line 1314 of file qcustomplot.h.

mRect

QRect QCPLayoutElement::mRect

protected

Definition at line 1317 of file qcustomplot.h.

mSizeConstraintRect

SizeConstraintRect QCPLayoutElement::mSizeConstraintRect

protected

Definition at line 1316 of file qcustomplot.h.

---

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

• qcustomplot.h
• qcustomplot.cpp