A plottable representing a bar chart in a plot. Więcej...

#include <qcustomplot.hh>

Diagram dziedziczenia dla QCPBars

Diagram współpracy dla QCPBars:

[legenda]

Typy publiczne
enum	WidthType { wtAbsolute, wtAxisRectRatio, wtPlotCoords }

Metody publiczne
	QCPBars (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPBars ()

double	width () const

WidthType	widthType () const

QCPBarsGroup *	barsGroup () const

double	baseValue () const

double	stackingGap () const

QCPBars *	barBelow () const

QCPBars *	barAbove () const

QSharedPointer< QCPBarsDataContainer >	data () const

void	setData (QSharedPointer< QCPBarsDataContainer > data)

void	setData (const QVector< double > &keys, const QVector< double > &values, bool alreadySorted=false)

void	setWidth (double width)

void	setWidthType (WidthType widthType)

void	setBarsGroup (QCPBarsGroup *barsGroup)

void	setBaseValue (double baseValue)

void	setStackingGap (double pixels)

void	addData (const QVector< double > &keys, const QVector< double > &values, bool alreadySorted=false)

void	addData (double key, double value)

void	moveBelow (QCPBars *bars)

void	moveAbove (QCPBars *bars)

virtual QCPDataSelection	selectTestRect (const QRectF &rect, bool onlySelectable) const Q_DECL_OVERRIDE

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

virtual QCPRange	getKeyRange (bool &foundRange, QCP::SignDomain inSignDomain=QCP::sdBoth) const Q_DECL_OVERRIDE

virtual QCPRange	getValueRange (bool &foundRange, QCP::SignDomain inSignDomain=QCP::sdBoth, const QCPRange &inKeyRange=QCPRange()) const Q_DECL_OVERRIDE

virtual QPointF	dataPixelPosition (int index) const Q_DECL_OVERRIDE

Metody publiczne dziedziczone z QCPAbstractPlottable1D< QCPBarsData >
	QCPAbstractPlottable1D (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPAbstractPlottable1D ()

virtual int	dataCount () const Q_DECL_OVERRIDE

virtual double	dataMainKey (int index) const Q_DECL_OVERRIDE

virtual double	dataSortKey (int index) const Q_DECL_OVERRIDE

virtual double	dataMainValue (int index) const Q_DECL_OVERRIDE

virtual QCPRange	dataValueRange (int index) const Q_DECL_OVERRIDE

virtual bool	sortKeyIsMainKey () const Q_DECL_OVERRIDE

virtual int	findBegin (double sortKey, bool expandedRange=true) const Q_DECL_OVERRIDE

virtual int	findEnd (double sortKey, bool expandedRange=true) const Q_DECL_OVERRIDE

virtual QCPPlottableInterface1D *	interface1D () Q_DECL_OVERRIDE

Metody publiczne dziedziczone z QCPAbstractPlottable
	QCPAbstractPlottable (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPAbstractPlottable ()

QString	name () const

bool	antialiasedFill () const

bool	antialiasedScatters () const

QPen	pen () const

QBrush	brush () const

QCPAxis *	keyAxis () const

QCPAxis *	valueAxis () const

QCP::SelectionType	selectable () const

bool	selected () const

QCPDataSelection	selection () const

QCPSelectionDecorator *	selectionDecorator () const

void	setName (const QString &name)

void	setAntialiasedFill (bool enabled)

void	setAntialiasedScatters (bool enabled)

void	setPen (const QPen &pen)

void	setBrush (const QBrush &brush)

void	setKeyAxis (QCPAxis *axis)

void	setValueAxis (QCPAxis *axis)

Q_SLOT void	setSelectable (QCP::SelectionType selectable)

Q_SLOT void	setSelection (QCPDataSelection selection)

void	setSelectionDecorator (QCPSelectionDecorator *decorator)

void	coordsToPixels (double key, double value, double &x, double &y) const

const QPointF	coordsToPixels (double key, double value) const

void	pixelsToCoords (double x, double y, double &key, double &value) const

void	pixelsToCoords (const QPointF &pixelPos, double &key, double &value) const

void	rescaleAxes (bool onlyEnlarge=false) const

void	rescaleKeyAxis (bool onlyEnlarge=false) const

void	rescaleValueAxis (bool onlyEnlarge=false, bool inKeyRange=false) const

bool	addToLegend (QCPLegend *legend)

bool	addToLegend ()

bool	removeFromLegend (QCPLegend *legend) const

bool	removeFromLegend () const

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)

bool	realVisibility () const

Metody publiczne dziedziczone z QCPPlottableInterface1D
virtual	~QCPPlottableInterface1D ()

Metody chronione
virtual void	draw (QCPPainter *painter) Q_DECL_OVERRIDE

virtual void	drawLegendIcon (QCPPainter *painter, const QRectF &rect) const Q_DECL_OVERRIDE

void	getVisibleDataBounds (QCPBarsDataContainer::const_iterator &begin, QCPBarsDataContainer::const_iterator &end) const

QRectF	getBarRect (double key, double value) const

void	getPixelWidth (double key, double &lower, double &upper) const

double	getStackedBaseValue (double key, bool positive) const

Metody chronione dziedziczone z QCPAbstractPlottable1D< QCPBarsData >
void	getDataSegments (QList< QCPDataRange > &selectedSegments, QList< QCPDataRange > &unselectedSegments) const

void	drawPolyline (QCPPainter *painter, const QVector< QPointF > &lineData) const

Metody chronione dziedziczone z QCPAbstractPlottable
virtual QRect	clipRect () const Q_DECL_OVERRIDE

virtual QCP::Interaction	selectionCategory () const Q_DECL_OVERRIDE

void	applyDefaultAntialiasingHint (QCPPainter *painter) const Q_DECL_OVERRIDE

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

virtual void	deselectEvent (bool *selectionStateChanged) Q_DECL_OVERRIDE

void	applyFillAntialiasingHint (QCPPainter *painter) const

void	applyScattersAntialiasingHint (QCPPainter *painter) const

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

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

Statyczne metody chronione
static void	connectBars (QCPBars lower, QCPBars upper)

Atrybuty chronione
double	mWidth

WidthType	mWidthType

QCPBarsGroup *	mBarsGroup

double	mBaseValue

double	mStackingGap

QPointer< QCPBars >	mBarBelow

QPointer< QCPBars >	mBarAbove

Atrybuty chronione dziedziczone z QCPAbstractPlottable1D< QCPBarsData >
QSharedPointer< QCPDataContainer< QCPBarsData > >	mDataContainer

Atrybuty chronione dziedziczone z QCPAbstractPlottable
QString	mName

bool	mAntialiasedFill

bool	mAntialiasedScatters

QPen	mPen

QBrush	mBrush

QPointer< QCPAxis >	mKeyAxis

QPointer< QCPAxis >	mValueAxis

QCP::SelectionType	mSelectable

QCPDataSelection	mSelection

QCPSelectionDecorator *	mSelectionDecorator

Atrybuty chronione dziedziczone z QCPLayerable
bool	mVisible

QCustomPlot *	mParentPlot

QPointer< QCPLayerable >	mParentLayerable

QCPLayer *	mLayer

bool	mAntialiased

Przyjaciele
class	QCustomPlot

class	QCPLegend

class	QCPBarsGroup

Dodatkowe Dziedziczone Składowe
Sygnały dziedziczone z QCPAbstractPlottable
void	selectionChanged (bool selected)

void	selectionChanged (const QCPDataSelection &selection)

void	selectableChanged (QCP::SelectionType selectable)

Sygnały dziedziczone z QCPLayerable
void	layerChanged (QCPLayer *newLayer)

Opis szczegółowy

To plot data, assign it with the setData or addData functions.

Changing the appearance

The appearance of the bars is determined by the pen and the brush (setPen, setBrush). The width of the individual bars can be controlled with setWidthType and setWidth.

Bar charts are stackable. This means, two QCPBars plottables can be placed on top of each other (see QCPBars::moveAbove). So when two bars are at the same key position, they will appear stacked.

If you would like to group multiple QCPBars plottables together so they appear side by side as shown below, use QCPBarsGroup.

Usage

Like all data representing objects in QCustomPlot, the QCPBars is a plottable (QCPAbstractPlottable). So the plottable-interface of QCustomPlot applies (QCustomPlot::plottable, QCustomPlot::removePlottable, etc.)

Usually, you first create an instance:

which registers it with the QCustomPlot instance of the passed axes. Note that this QCustomPlot instance takes ownership of the plottable, so do not delete it manually but use QCustomPlot::removePlottable() instead. The newly created plottable can be modified, e.g.:

Dokumentacja składowych wyliczanych

enum QCPBars::WidthType

Defines the ways the width of the bar can be specified. Thus it defines what the number passed to setWidth actually means.

Zobacz również: setWidthType, setWidth

Wartości wyliczeń
wtAbsolute	Bar width is in absolute pixels.
wtAxisRectRatio	Bar width is given by a fraction of the axis rect size.
wtPlotCoords	Bar width is in key coordinates and thus scales with the key axis range.

Dokumentacja konstruktora i destruktora

QCPBars::QCPBars	(	QCPAxis *	keyAxis,
		QCPAxis *	valueAxis
	)

explicit

Constructs a bar chart which uses keyAxis as its key axis ("x") and valueAxis as its value axis ("y"). keyAxis and valueAxis must reside in the same QCustomPlot instance and not have the same orientation. If either of these restrictions is violated, a corresponding message is printed to the debug output (qDebug), the construction is not aborted, though.

The created QCPBars is automatically registered with the QCustomPlot instance inferred from keyAxis. This QCustomPlot instance takes ownership of the QCPBars, so do not delete it manually but use QCustomPlot::removePlottable() instead.

QCPBars::~QCPBars ( )

virtual

Dokumentacja funkcji składowych

void QCPBars::addData	(	const QVector< double > &	keys,
		const QVector< double > &	values,
		bool	alreadySorted = `false`
	)

To jest metoda przeciążona, udostępniona dla wygody. Różni się od powyższej metody tylko zestawem akceptowanych argumentów.

Adds the provided points in keys and values to the current data. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

If you can guarantee that the passed data points are sorted by keys in ascending order, you can set alreadySorted to true, to improve performance by saving a sorting run.

Alternatively, you can also access and modify the data directly via the data method, which returns a pointer to the internal data container.

void QCPBars::addData	(	double	key,
		double	value
	)

To jest metoda przeciążona, udostępniona dla wygody. Różni się od powyższej metody tylko zestawem akceptowanych argumentów. Adds the provided data point as key and value to the current data.

Alternatively, you can also access and modify the data directly via the data method, which returns a pointer to the internal data container.

QCPBars * QCPBars::barAbove ( ) const

inline

Returns the bars plottable that is directly above this bars plottable. If there is no such plottable, returns 0.

Zobacz również: barBelow, moveBelow, moveAbove

QCPBars * QCPBars::barBelow ( ) const

inline

Returns the bars plottable that is directly below this bars plottable. If there is no such plottable, returns 0.

Zobacz również: barAbove, moveBelow, moveAbove

QCPBarsGroup* QCPBars::barsGroup ( ) const

inline

double QCPBars::baseValue ( ) const

inline

void QCPBars::connectBars	(	QCPBars *	lower,
		QCPBars *	upper
	)

staticprotected

QSharedPointer< QCPBarsDataContainer > QCPBars::data ( ) const

inline

Returns a shared pointer to the internal data storage of type QCPBarsDataContainer. You may use it to directly manipulate the data, which may be more convenient and faster than using the regular setData or addData methods.

QPointF QCPBars::dataPixelPosition ( int index ) const

virtual

Returns the pixel position on the widget surface at which the data point at the given index appears.

Usually this corresponds to the point of dataMainKey/dataMainValue, in pixel coordinates. However, depending on the plottable, this might be a different apparent position than just a coord-to-pixel transform of those values. For example, QCPBars apparent data values can be shifted depending on their stacking, bar grouping or configured base value.

Reimplementowana z QCPAbstractPlottable1D< QCPBarsData >.

void QCPBars::draw ( QCPPainter * painter )

protectedvirtual

Implementuje QCPAbstractPlottable.

void QCPBars::drawLegendIcon	(	QCPPainter *	painter,
		const QRectF &	rect
	)		const

protectedvirtual

Implementuje QCPAbstractPlottable.

QRectF QCPBars::getBarRect	(	double	key,
		double	value
	)		const

protected

QCPRange QCPBars::getKeyRange	(	bool &	foundRange,
		QCP::SignDomain	inSignDomain = `QCP::sdBoth`
	)		const

virtual

Returns the coordinate range that all data in this plottable span in the key axis dimension. For logarithmic plots, one can set inSignDomain to either QCP::sdNegative or QCP::sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to QCP::sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to QCP::sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).

Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero (e.g. when there is only one data point). In this case foundRange would return true, but the returned range is not a valid range in terms of QCPRange::validRange.

Zobacz również: rescaleAxes, getValueRange

Implementuje QCPAbstractPlottable.

void QCPBars::getPixelWidth	(	double	key,
		double &	lower,
		double &	upper
	)		const

protected

double QCPBars::getStackedBaseValue	(	double	key,
		bool	positive
	)		const

protected

QCPRange QCPBars::getValueRange	(	bool &	foundRange,
		QCP::SignDomain	inSignDomain = `QCP::sdBoth`,
		const QCPRange &	inKeyRange = `QCPRange()`
	)		const

virtual

Returns the coordinate range that the data points in the specified key range (inKeyRange) span in the value axis dimension. For logarithmic plots, one can set inSignDomain to either QCP::sdNegative or QCP::sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to QCP::sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to QCP::sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).

If inKeyRange has both lower and upper bound set to zero (is equal to QCPRange()), all data points are considered, without any restriction on the keys.

Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero (e.g. when there is only one data point). In this case foundRange would return true, but the returned range is not a valid range in terms of QCPRange::validRange.

Zobacz również: rescaleAxes, getKeyRange

Implementuje QCPAbstractPlottable.

void QCPBars::getVisibleDataBounds	(	QCPBarsDataContainer::const_iterator &	begin,
		QCPBarsDataContainer::const_iterator &	end
	)		const

protected

void QCPBars::moveAbove ( QCPBars * bars )

Moves this bars plottable above bars. In other words, the bars of this plottable will appear above the bars of bars. The move target bars must use the same key and value axis as this plottable.

Inserting into and removing from existing bar stacking is handled gracefully. If bars already has a bars object above itself, this bars object is inserted between the two. If this bars object is already between two other bars, the two other bars will be stacked on top of each other after the operation.

To remove this bars plottable from any stacking, set bars to 0.

Zobacz również: moveBelow, barBelow, barAbove

void QCPBars::moveBelow ( QCPBars * bars )

Moves this bars plottable below bars. In other words, the bars of this plottable will appear below the bars of bars. The move target bars must use the same key and value axis as this plottable.

Inserting into and removing from existing bar stacking is handled gracefully. If bars already has a bars object below itself, this bars object is inserted between the two. If this bars object is already between two other bars, the two other bars will be stacked on top of each other after the operation.

To remove this bars plottable from any stacking, set bars to 0.

Zobacz również: moveBelow, barAbove, barBelow

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

virtual

Implements a point-selection algorithm assuming the data (accessed via the 1D data interface) is point-like. Most subclasses will want to reimplement this method again, to provide a more accurate hit test based on the true data visualization geometry.

Reimplementowana z QCPAbstractPlottable1D< QCPBarsData >.

QCPDataSelection QCPBars::selectTestRect	(	const QRectF &	rect,
		bool	onlySelectable
	)		const

virtual

Returns a data selection containing all the data points of this plottable which are contained (or hit by) rect. This is used mainly in the selection rect interaction for data selection (data selection mechanism).

If onlySelectable is true, an empty QCPDataSelection is returned if this plottable is not selectable (i.e. if QCPAbstractPlottable::setSelectable is QCP::stNone).

Nota: rect must be a normalized rect (positive or zero width and height). This is especially important when using the rect of QCPSelectionRect::accepted, which is not necessarily normalized. Use QRect::normalized() when passing a rect which might not be normalized.

Reimplementowana z QCPAbstractPlottable1D< QCPBarsData >.

void QCPBars::setBarsGroup ( QCPBarsGroup * barsGroup )

Sets to which QCPBarsGroup this QCPBars instance belongs to. Alternatively, you can also use QCPBarsGroup::append.

To remove this QCPBars from any group, set barsGroup to 0.

void QCPBars::setBaseValue ( double baseValue )

Sets the base value of this bars plottable.

The base value defines where on the value coordinate the bars start. How far the bars extend from the base value is given by their individual value data. For example, if the base value is set to 1, a bar with data value 2 will have its lowest point at value coordinate 1 and highest point at 3.

For stacked bars, only the base value of the bottom-most QCPBars has meaning.

The default base value is 0.

void QCPBars::setData ( QSharedPointer< QCPBarsDataContainer > data )

To jest metoda przeciążona, udostępniona dla wygody. Różni się od powyższej metody tylko zestawem akceptowanych argumentów.

Replaces the current data container with the provided data container.

Since a QSharedPointer is used, multiple QCPBars may share the same data container safely. Modifying the data in the container will then affect all bars that share the container. Sharing can be achieved by simply exchanging the data containers wrapped in shared pointers:

If you do not wish to share containers, but create a copy from an existing container, rather use the QCPDataContainer<DataType>::set method on the bar's data container directly:

Zobacz również: addData

void QCPBars::setData	(	const QVector< double > &	keys,
		const QVector< double > &	values,
		bool	alreadySorted = `false`
	)

To jest metoda przeciążona, udostępniona dla wygody. Różni się od powyższej metody tylko zestawem akceptowanych argumentów.

Replaces the current data with the provided points in keys and values. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

If you can guarantee that the passed data points are sorted by keys in ascending order, you can set alreadySorted to true, to improve performance by saving a sorting run.

Zobacz również: addData

void QCPBars::setStackingGap ( double pixels )

If this bars plottable is stacked on top of another bars plottable (moveAbove), this method allows specifying a distance in pixels, by which the drawn bar rectangles will be separated by the bars below it.

void QCPBars::setWidth ( double width )

Sets the width of the bars.

How the number passed as width is interpreted (e.g. screen pixels, plot coordinates,...), depends on the currently set width type, see setWidthType and WidthType.

void QCPBars::setWidthType ( QCPBars::WidthType widthType )

Sets how the width of the bars is defined. See the documentation of WidthType for an explanation of the possible values for widthType.

The default value is wtPlotCoords.

Zobacz również: setWidth

double QCPBars::stackingGap ( ) const

inline

double QCPBars::width ( ) const

inline

WidthType QCPBars::widthType ( ) const

inline

Dokumentacja przyjaciół i funkcji związanych

friend class QCPBarsGroup

friend

friend class QCPLegend

friend

friend class QCustomPlot

friend

Dokumentacja atrybutów składowych

QPointer<QCPBars> QCPBars::mBarAbove

protected

QPointer<QCPBars> QCPBars::mBarBelow

protected

QCPBarsGroup* QCPBars::mBarsGroup

protected

double QCPBars::mBaseValue

protected

double QCPBars::mStackingGap

protected

double QCPBars::mWidth

protected

WidthType QCPBars::mWidthType

protected

Dokumentacja dla tej klasy została wygenerowana z plików:

Typy publiczne

Metody publiczne

Metody chronione

Statyczne metody chronione

Atrybuty chronione

Przyjaciele

Dodatkowe Dziedziczone Składowe

Opis szczegółowy

Changing the appearance

Usage

Dokumentacja składowych wyliczanych

Dokumentacja konstruktora i destruktora

Dokumentacja funkcji składowych

Dokumentacja przyjaciół i funkcji związanych

Dokumentacja atrybutów składowych