Provides rect/rubber-band data selection and range zoom interaction. Więcej...

#include <qcustomplot.hh>

Diagram dziedziczenia dla QCPSelectionRect

Diagram współpracy dla QCPSelectionRect:

[legenda]

Sygnały
void	started (QMouseEvent *event)

void	changed (const QRect &rect, QMouseEvent *event)

void	canceled (const QRect &rect, QInputEvent *event)

void	accepted (const QRect &rect, QMouseEvent *event)

Sygnały dziedziczone z QCPLayerable
void	layerChanged (QCPLayer *newLayer)

Metody publiczne
	QCPSelectionRect (QCustomPlot *parentPlot)

virtual	~QCPSelectionRect ()

QRect	rect () const

QCPRange	range (const QCPAxis *axis) const

QPen	pen () const

QBrush	brush () const

bool	isActive () const

void	setPen (const QPen &pen)

void	setBrush (const QBrush &brush)

Q_SLOT void	cancel ()

Metody publiczne dziedziczone z QCPLayerable
	QCPLayerable (QCustomPlot plot, QString targetLayer=QString(), QCPLayerable parentLayerable=0)

virtual	~QCPLayerable ()

bool	visible () const

QCustomPlot *	parentPlot () const

QCPLayerable *	parentLayerable () const

QCPLayer *	layer () const

bool	antialiased () const

void	setVisible (bool on)

Q_SLOT bool	setLayer (QCPLayer *layer)

bool	setLayer (const QString &layerName)

void	setAntialiased (bool enabled)

virtual double	selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=0) const

bool	realVisibility () const

Metody chronione
virtual void	startSelection (QMouseEvent *event)

virtual void	moveSelection (QMouseEvent *event)

virtual void	endSelection (QMouseEvent *event)

virtual void	keyPressEvent (QKeyEvent *event)

virtual void	applyDefaultAntialiasingHint (QCPPainter *painter) const Q_DECL_OVERRIDE

virtual void	draw (QCPPainter *painter) Q_DECL_OVERRIDE

Metody chronione dziedziczone z QCPLayerable
virtual void	parentPlotInitialized (QCustomPlot *parentPlot)

virtual QCP::Interaction	selectionCategory () const

virtual QRect	clipRect () const

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

virtual void	deselectEvent (bool *selectionStateChanged)

virtual void	mousePressEvent (QMouseEvent *event, const QVariant &details)

virtual void	mouseMoveEvent (QMouseEvent *event, const QPointF &startPos)

virtual void	mouseReleaseEvent (QMouseEvent *event, const QPointF &startPos)

virtual void	mouseDoubleClickEvent (QMouseEvent *event, const QVariant &details)

virtual void	wheelEvent (QWheelEvent *event)

void	initializeParentPlot (QCustomPlot *parentPlot)

void	setParentLayerable (QCPLayerable *parentLayerable)

bool	moveToLayer (QCPLayer *layer, bool prepend)

void	applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const

Atrybuty chronione
QRect	mRect

QPen	mPen

QBrush	mBrush

bool	mActive

Atrybuty chronione dziedziczone z QCPLayerable
bool	mVisible

QCustomPlot *	mParentPlot

QPointer< QCPLayerable >	mParentLayerable

QCPLayer *	mLayer

bool	mAntialiased

Przyjaciele
class	QCustomPlot

Opis szczegółowy

QCPSelectionRect is used by QCustomPlot when the QCustomPlot::setSelectionRectMode is not QCP::srmNone. When the user drags the mouse across the plot, the current selection rect instance (QCustomPlot::setSelectionRect) is forwarded these events and makes sure an according rect shape is drawn. At the begin, during, and after completion of the interaction, it emits the corresponding signals started, changed, canceled, and accepted.

The QCustomPlot instance connects own slots to the current selection rect instance, in order to react to an accepted selection rect interaction accordingly.

isActive can be used to check whether the selection rect is currently active. An ongoing selection interaction can be cancelled programmatically via calling cancel at any time.

The appearance of the selection rect can be controlled via setPen and setBrush.

If you wish to provide custom behaviour, e.g. a different visual representation of the selection rect (QCPSelectionRect::draw), you can subclass QCPSelectionRect and pass an instance of your subclass to QCustomPlot::setSelectionRect.

Dokumentacja konstruktora i destruktora

QCPSelectionRect::QCPSelectionRect ( QCustomPlot * parentPlot )

explicit

Creates a new QCPSelectionRect instance. To make QCustomPlot use the selection rect instance, pass it to QCustomPlot::setSelectionRect. parentPlot should be set to the same QCustomPlot widget.

QCPSelectionRect::~QCPSelectionRect ( )

virtual

Dokumentacja funkcji składowych

void QCPSelectionRect::accepted	(	const QRect &	rect,
		QMouseEvent *	event
	)

signal

This signal is emitted when the selection interaction was completed by the user releasing the mouse button.

Note that rect may have a negative width or height, if the selection is being dragged to the upper or left side of the selection rect origin.

void QCPSelectionRect::applyDefaultAntialiasingHint ( QCPPainter * painter ) const

protectedvirtual

Implementuje QCPLayerable.

QBrush QCPSelectionRect::brush ( ) const

inline

void QCPSelectionRect::cancel ( )

If there is currently a selection interaction going on (isActive), the interaction is canceled. The selection rect will emit the canceled signal.

void QCPSelectionRect::canceled	(	const QRect &	rect,
		QInputEvent *	event
	)

signal

This signal is emitted when the selection interaction was cancelled. Note that event is 0 if the selection interaction was cancelled programmatically, by a call to cancel.

The user may cancel the selection interaction by pressing the escape key. In this case, event holds the respective input event.

Note that rect may have a negative width or height, if the selection is being dragged to the upper or left side of the selection rect origin.

void QCPSelectionRect::changed	(	const QRect &	rect,
		QMouseEvent *	event
	)

signal

This signal is emitted while the selection rect interaction is ongoing and the rect has changed its size due to the user moving the mouse.

Note that rect may have a negative width or height, if the selection is being dragged to the upper or left side of the selection rect origin.

void QCPSelectionRect::draw ( QCPPainter * painter )

protectedvirtual

Implementuje QCPLayerable.

void QCPSelectionRect::endSelection ( QMouseEvent * event )

protectedvirtual

bool QCPSelectionRect::isActive ( ) const

inline

Returns true if there is currently a selection going on, i.e. the user has started dragging a selection rect, but hasn't released the mouse button yet.

Zobacz również: cancel

void QCPSelectionRect::keyPressEvent ( QKeyEvent * event )

protectedvirtual

void QCPSelectionRect::moveSelection ( QMouseEvent * event )

protectedvirtual

QPen QCPSelectionRect::pen ( ) const

inline

QCPRange QCPSelectionRect::range ( const QCPAxis * axis ) const

A convenience function which returns the coordinate range of the provided axis, that this selection rect currently encompasses.

QRect QCPSelectionRect::rect ( ) const

inline

void QCPSelectionRect::setBrush ( const QBrush & brush )

Sets the brush that will be used to fill the selection rect. By default the selection rect is not filled, i.e. brush is Qt::NoBrush.

Zobacz również: setPen

void QCPSelectionRect::setPen ( const QPen & pen )

Sets the pen that will be used to draw the selection rect outline.

Zobacz również: setBrush

void QCPSelectionRect::started ( QMouseEvent * event )

signal

This signal is emitted when a selection rect interaction was initiated, i.e. the user just started dragging the selection rect with the mouse.

void QCPSelectionRect::startSelection ( QMouseEvent * event )

protectedvirtual

Dokumentacja przyjaciół i funkcji związanych

friend class QCustomPlot

friend

Dokumentacja atrybutów składowych

bool QCPSelectionRect::mActive

protected

QBrush QCPSelectionRect::mBrush

protected

QPen QCPSelectionRect::mPen

protected

QRect QCPSelectionRect::mRect

protected

Dokumentacja dla tej klasy została wygenerowana z plików:

Sygnały

Metody publiczne

Metody chronione

Atrybuty chronione

Przyjaciele

Opis szczegółowy

Dokumentacja konstruktora i destruktora

Dokumentacja funkcji składowych

Dokumentacja przyjaciół i funkcji związanych

Dokumentacja atrybutów składowych