QCPItemPixmap

Inheritance diagram for QCPItemPixmap:

[legend]

Public Member Functions
	QCPItemPixmap (QCustomPlot *parentPlot)

Qt::AspectRatioMode	aspectRatioMode () const

QPen	pen () const

QPixmap	pixmap () const

bool	scaled () const

QPen	selectedPen () const

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

void	setPen (const QPen &pen)

void	setPixmap (const QPixmap &pixmap)

void	setScaled (bool scaled, Qt::AspectRatioMode aspectRatioMode=Qt::KeepAspectRatio, Qt::TransformationMode transformationMode=Qt::SmoothTransformation)

void	setSelectedPen (const QPen &pen)

Qt::TransformationMode	transformationMode () const

Public Member Functions inherited from QCPAbstractItem
	QCPAbstractItem (QCustomPlot *parentPlot)

QCPItemAnchor *	anchor (const QString &name) const

QList< QCPItemAnchor * >	anchors () const

QCPAxisRect *	clipAxisRect () const

bool	clipToAxisRect () const

bool	hasAnchor (const QString &name) const

QCPItemPosition *	position (const QString &name) const

QList< QCPItemPosition * >	positions () const

bool	selectable () const

bool	selected () const

void	setClipAxisRect (QCPAxisRect *rect)

void	setClipToAxisRect (bool clip)

Q_SLOT void	setSelectable (bool selectable)

Q_SLOT void	setSelected (bool selected)

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

Public Attributes
QCPItemAnchor *const	bottom

QCPItemAnchor *const	bottomLeft

QCPItemPosition *const	bottomRight

QCPItemAnchor *const	left

QCPItemAnchor *const	right

QCPItemAnchor *const	top

QCPItemPosition *const	topLeft

QCPItemAnchor *const	topRight

Protected Types
enum	AnchorIndex { aiTop , aiTopRight , aiRight , aiBottom , aiBottomLeft , aiLeft }

Protected Member Functions
virtual QPointF	anchorPixelPosition (int anchorId) const override

virtual void	draw (QCPPainter *painter) override

QRect	getFinalRect (bool flippedHorz=nullptr, bool flippedVert=nullptr) const

QPen	mainPen () const

void	updateScaledPixmap (QRect finalRect=QRect(), bool flipHorz=false, bool flipVert=false)

Protected Member Functions inherited from QCPAbstractItem
virtual void	applyDefaultAntialiasingHint (QCPPainter *painter) const override

virtual QRect	clipRect () const override

QCPItemAnchor *	createAnchor (const QString &name, int anchorId)

QCPItemPosition *	createPosition (const QString &name)

virtual void	deselectEvent (bool *selectionStateChanged) override

double	rectDistance (const QRectF &rect, const QPointF &pos, bool filledRect) const

virtual void	selectEvent (QMouseEvent event, bool additive, const QVariant &details, bool selectionStateChanged) override

virtual QCP::Interaction	selectionCategory () const override

Protected Member Functions inherited from QCPLayerable
void	applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const

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	parentPlotInitialized (QCustomPlot *parentPlot)

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
Qt::AspectRatioMode	mAspectRatioMode

QPen	mPen

QPixmap	mPixmap

bool	mScaled

QPixmap	mScaledPixmap

bool	mScaledPixmapInvalidated

QPen	mSelectedPen

Qt::TransformationMode	mTransformationMode

Protected Attributes inherited from QCPAbstractItem
QList< QCPItemAnchor * >	mAnchors

QPointer< QCPAxisRect >	mClipAxisRect

bool	mClipToAxisRect

QList< QCPItemPosition * >	mPositions

bool	mSelectable

bool	mSelected

Protected Attributes inherited from QCPLayerable
bool	mAntialiased

QCPLayer *	mLayer

QPointer< QCPLayerable >	mParentLayerable

QCustomPlot *	mParentPlot

bool	mVisible

Additional Inherited Members
Public Types inherited from QObject
typedef	QObjectList

Properties inherited from QObject
	objectName

Signals inherited from QCPAbstractItem
void	selectableChanged (bool selectable)

void	selectionChanged (bool selected)

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

An arbitrary pixmap.

Pixmap example. Blue dotted circles are anchors, solid blue discs are positions.

It has two positions, topLeft and bottomRight, which define the rectangle the pixmap will be drawn in. Depending on the scale setting (setScaled), the pixmap will be either scaled to fit the rectangle or be drawn aligned to the topLeft position.

If scaling is enabled and topLeft is further to the bottom/right than bottomRight (as shown on the right side of the example image), the pixmap will be flipped in the respective orientations.

Definition at line 6784 of file qcustomplot.h.

Member Enumeration Documentation

◆ AnchorIndex

enum QCPItemPixmap::AnchorIndex

protected

Definition at line 6826 of file qcustomplot.h.

Constructor & Destructor Documentation

◆ QCPItemPixmap()

QCPItemPixmap::QCPItemPixmap ( QCustomPlot * parentPlot )

explicit

Creates a rectangle item and sets default values.

The created item is automatically registered with parentPlot. This QCustomPlot instance takes ownership of the item, so do not delete it manually but use QCustomPlot::removeItem() instead.

Definition at line 30156 of file qcustomplot.cpp.

◆ ~QCPItemPixmap()

QCPItemPixmap::~QCPItemPixmap ( )

overridevirtual

Definition at line 30178 of file qcustomplot.cpp.

Member Function Documentation

◆ anchorPixelPosition()

QPointF QCPItemPixmap::anchorPixelPosition ( int anchorId ) const

overrideprotectedvirtual

Returns the pixel position of the anchor with Id anchorId. This function must be reimplemented in item subclasses if they want to provide anchors (QCPItemAnchor).

For example, if the item has two anchors with id 0 and 1, this function takes one of these anchor ids and returns the respective pixel points of the specified anchor.

See also: createAnchor

Reimplemented from QCPAbstractItem.

Definition at line 30258 of file qcustomplot.cpp.

◆ aspectRatioMode()

Qt::AspectRatioMode QCPItemPixmap::aspectRatioMode ( ) const

inline

Definition at line 6802 of file qcustomplot.h.

◆ draw()

void QCPItemPixmap::draw ( QCPPainter * painter )

overrideprotectedvirtual

Draws this item with the provided painter.

The cliprect of the provided painter is set to the rect returned by clipRect before this function is called. The clipRect depends on the clipping settings defined by setClipToAxisRect and setClipAxisRect.

Implements QCPAbstractItem.

Definition at line 30236 of file qcustomplot.cpp.

◆ getFinalRect()

QRect QCPItemPixmap::getFinalRect	(	bool *	flippedHorz = nullptr,
		bool *	flippedVert = nullptr ) const

protected

Returns the final (tight) rect the pixmap is drawn in, depending on the current item positions and scaling settings.

The output parameters flippedHorz and flippedVert return whether the pixmap should be drawn flipped horizontally or vertically in the returned rect. (The returned rect itself is always normalized, i.e. the top left corner of the rect is actually further to the top/left than the bottom right corner). This is the case when the item position topLeft is further to the bottom/right than bottomRight.

If scaling is disabled, returns a rect with size of the original pixmap and the top left corner aligned with the item position topLeft. The position bottomRight is ignored.

Definition at line 30339 of file qcustomplot.cpp.

◆ mainPen()

QPen QCPItemPixmap::mainPen ( ) const

protected

Returns the pen that should be used for drawing lines. Returns mPen when the item is not selected and mSelectedPen when it is.

Definition at line 30392 of file qcustomplot.cpp.

◆ pen()

QPen QCPItemPixmap::pen ( ) const

inline

Definition at line 6804 of file qcustomplot.h.

◆ pixmap()

QPixmap QCPItemPixmap::pixmap ( ) const

inline

Definition at line 6800 of file qcustomplot.h.

◆ scaled()

bool QCPItemPixmap::scaled ( ) const

inline

Definition at line 6801 of file qcustomplot.h.

◆ selectedPen()

QPen QCPItemPixmap::selectedPen ( ) const

inline

Definition at line 6805 of file qcustomplot.h.

◆ selectTest()

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

overridevirtual

This function is used to decide whether a click hits a layerable object or not.

pos is a point in pixel coordinates on the QCustomPlot surface. This function returns the shortest pixel distance of this point to the object. If the object is either invisible or the distance couldn't be determined, -1.0 is returned. Further, if onlySelectable is true and the object is not selectable, -1.0 is returned, too.

If the object is represented not by single lines but by an area like a QCPItemText or the bars of a QCPBars plottable, a click inside the area should also be considered a hit. In these cases this function thus returns a constant value greater zero but still below the parent plot's selection tolerance. (typically the selectionTolerance multiplied by 0.99).

Providing a constant value for area objects allows selecting line objects even when they are obscured by such area objects, by clicking close to the lines (i.e. closer than 0.99*selectionTolerance).

The actual setting of the selection state is not done by this function. This is handled by the parent QCustomPlot when the mouseReleaseEvent occurs, and the finally selected object is notified via the selectEvent/ deselectEvent methods.

details is an optional output parameter. Every layerable subclass may place any information in details. This information will be passed to selectEvent when the parent QCustomPlot decides on the basis of this selectTest call, that the object was successfully selected. The subsequent call to selectEvent will carry the details. This is useful for multi-part objects (like QCPAxis). This way, a possibly complex calculation to decide which part was clicked is only done once in selectTest. The result (i.e. the actually clicked part) can then be placed in details. So in the subsequent selectEvent, the decision which part was selected doesn't have to be done a second time for a single selection operation.

In the case of 1D Plottables (QCPAbstractPlottable1D, like QCPGraph or QCPBars) details will be set to a QCPDataSelection, describing the closest data point to pos.

You may pass nullptr as details to indicate that you are not interested in those selection details.

See also: selectEvent, deselectEvent, mousePressEvent, wheelEvent, QCustomPlot::setInteractions, QCPAbstractPlottable1D::selectTestRect

Implements QCPAbstractItem.

Definition at line 30226 of file qcustomplot.cpp.

◆ setPen()

void QCPItemPixmap::setPen ( const QPen & pen )

Sets the pen that will be used to draw a border around the pixmap.

See also: setSelectedPen, setBrush

Definition at line 30210 of file qcustomplot.cpp.

◆ setPixmap()

void QCPItemPixmap::setPixmap ( const QPixmap & pixmap )

Sets the pixmap that will be displayed.

Definition at line 30185 of file qcustomplot.cpp.

◆ setScaled()

void QCPItemPixmap::setScaled	(	bool	scaled,
		Qt::AspectRatioMode	aspectRatioMode = Qt::KeepAspectRatio,
		Qt::TransformationMode	transformationMode = Qt::SmoothTransformation )

Sets whether the pixmap will be scaled to fit the rectangle defined by the topLeft and bottomRight positions.

Definition at line 30197 of file qcustomplot.cpp.

◆ setSelectedPen()

void QCPItemPixmap::setSelectedPen ( const QPen & pen )

Sets the pen that will be used to draw a border around the pixmap when selected

See also: setPen, setSelected

Definition at line 30220 of file qcustomplot.cpp.

◆ transformationMode()

Qt::TransformationMode QCPItemPixmap::transformationMode ( ) const

inline

Definition at line 6803 of file qcustomplot.h.

◆ updateScaledPixmap()

void QCPItemPixmap::updateScaledPixmap	(	QRect	finalRect = QRect(),
		bool	flipHorz = false,
		bool	flipVert = false )

protected

Creates the buffered scaled image (mScaledPixmap) to fit the specified finalRect. The parameters flipHorz and flipVert control whether the resulting image shall be flipped horizontally or vertically. (This is used when topLeft is further to the bottom/right than bottomRight.)

This function only creates the scaled pixmap when the buffered pixmap has a different size than the expected result, so calling this function repeatedly, e.g. in the draw function, does not cause expensive rescaling every time.

If scaling is disabled, sets mScaledPixmap to a null QPixmap.

Definition at line 30297 of file qcustomplot.cpp.

Member Data Documentation

◆ bottom

QCPItemAnchor* const QCPItemPixmap::bottom

Definition at line 6821 of file qcustomplot.h.

◆ bottomLeft

QCPItemAnchor* const QCPItemPixmap::bottomLeft

Definition at line 6822 of file qcustomplot.h.

◆ bottomRight

QCPItemPosition* const QCPItemPixmap::bottomRight

Definition at line 6817 of file qcustomplot.h.

◆ left

QCPItemAnchor* const QCPItemPixmap::left

Definition at line 6823 of file qcustomplot.h.

◆ mAspectRatioMode

Qt::AspectRatioMode QCPItemPixmap::mAspectRatioMode

protected

Definition at line 6833 of file qcustomplot.h.

◆ mPen

QPen QCPItemPixmap::mPen

protected

Definition at line 6835 of file qcustomplot.h.

◆ mPixmap

QPixmap QCPItemPixmap::mPixmap

protected

Definition at line 6829 of file qcustomplot.h.

◆ mScaled

bool QCPItemPixmap::mScaled

protected

Definition at line 6831 of file qcustomplot.h.

◆ mScaledPixmap

QPixmap QCPItemPixmap::mScaledPixmap

protected

Definition at line 6830 of file qcustomplot.h.

◆ mScaledPixmapInvalidated

bool QCPItemPixmap::mScaledPixmapInvalidated

protected

Definition at line 6832 of file qcustomplot.h.

◆ mSelectedPen

QPen QCPItemPixmap::mSelectedPen

protected

Definition at line 6835 of file qcustomplot.h.

◆ mTransformationMode

Qt::TransformationMode QCPItemPixmap::mTransformationMode

protected

Definition at line 6834 of file qcustomplot.h.

◆ right

QCPItemAnchor* const QCPItemPixmap::right

Definition at line 6820 of file qcustomplot.h.

◆ top

QCPItemAnchor* const QCPItemPixmap::top

Definition at line 6818 of file qcustomplot.h.

◆ topLeft

QCPItemPosition* const QCPItemPixmap::topLeft

Definition at line 6816 of file qcustomplot.h.

◆ topRight

QCPItemAnchor* const QCPItemPixmap::topRight

Definition at line 6819 of file qcustomplot.h.

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

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QCPItemPixmap

Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ AnchorIndex

Constructor & Destructor Documentation

◆ QCPItemPixmap()

◆ ~QCPItemPixmap()

Member Function Documentation

◆ anchorPixelPosition()

◆ aspectRatioMode()

◆ draw()

◆ getFinalRect()

◆ mainPen()

◆ pen()

◆ pixmap()

◆ scaled()

◆ selectedPen()

◆ selectTest()

◆ setPen()

◆ setPixmap()

◆ setScaled()

◆ setSelectedPen()

◆ transformationMode()

◆ updateScaledPixmap()

Member Data Documentation

◆ bottom

◆ bottomLeft

◆ bottomRight

◆ left

◆ mAspectRatioMode

◆ mPen

◆ mPixmap

◆ mScaled

◆ mScaledPixmap

◆ mScaledPixmapInvalidated

◆ mSelectedPen

◆ mTransformationMode

◆ right

◆ top

◆ topLeft

◆ topRight