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Dokumentacja klasy QCPItemBracket

A bracket for referencing/highlighting certain parts in the plot. Więcej...

#include <qcustomplot.h>

Diagram dziedziczenia dla QCPItemBracket
Diagram współpracy dla QCPItemBracket:

Typy publiczne

enum  BracketStyle { bsSquare, bsRound, bsCurly, bsCalligraphic }
 

Metody publiczne

 QCPItemBracket (QCustomPlot *parentPlot)
 
virtual ~QCPItemBracket ()
 
QPen pen () const
 
QPen selectedPen () const
 
double length () const
 
BracketStyle style () const
 
void setPen (const QPen &pen)
 
void setSelectedPen (const QPen &pen)
 
void setLength (double length)
 
void setStyle (BracketStyle style)
 
virtual double selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=0) const Q_DECL_OVERRIDE
 
- Metody publiczne dziedziczone z QCPAbstractItem
 QCPAbstractItem (QCustomPlot *parentPlot)
 
virtual ~QCPAbstractItem ()
 
bool clipToAxisRect () const
 
QCPAxisRectclipAxisRect () const
 
bool selectable () const
 
bool selected () const
 
void setClipToAxisRect (bool clip)
 
void setClipAxisRect (QCPAxisRect *rect)
 
Q_SLOT void setSelectable (bool selectable)
 
Q_SLOT void setSelected (bool selected)
 
QList< QCPItemPosition * > positions () const
 
QList< QCPItemAnchor * > anchors () const
 
QCPItemPositionposition (const QString &name) const
 
QCPItemAnchoranchor (const QString &name) const
 
bool hasAnchor (const QString &name) const
 
- Metody publiczne dziedziczone z QCPLayerable
 QCPLayerable (QCustomPlot *plot, QString targetLayer=QString(), QCPLayerable *parentLayerable=0)
 
virtual ~QCPLayerable ()
 
bool visible () const
 
QCustomPlotparentPlot () const
 
QCPLayerableparentLayerable () const
 
QCPLayerlayer () 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
 

Atrybuty publiczne

QCPItemPosition *const left
 
QCPItemPosition *const right
 
QCPItemAnchor *const center
 

Typy chronione

enum  AnchorIndex { aiCenter }
 

Metody chronione

virtual void draw (QCPPainter *painter) Q_DECL_OVERRIDE
 
virtual QPointF anchorPixelPosition (int anchorId) const Q_DECL_OVERRIDE
 
QPen mainPen () const
 
- Metody chronione dziedziczone z QCPAbstractItem
virtual QCP::Interaction selectionCategory () const Q_DECL_OVERRIDE
 
virtual QRect clipRect () const Q_DECL_OVERRIDE
 
virtual 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
 
double rectDistance (const QRectF &rect, const QPointF &pos, bool filledRect) const
 
QCPItemPositioncreatePosition (const QString &name)
 
QCPItemAnchorcreateAnchor (const QString &name, int anchorId)
 
- 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
 

Atrybuty chronione

QPen mPen
 
QPen mSelectedPen
 
double mLength
 
BracketStyle mStyle
 
- Atrybuty chronione dziedziczone z QCPAbstractItem
bool mClipToAxisRect
 
QPointer< QCPAxisRectmClipAxisRect
 
QList< QCPItemPosition * > mPositions
 
QList< QCPItemAnchor * > mAnchors
 
bool mSelectable
 
bool mSelected
 
- Atrybuty chronione dziedziczone z QCPLayerable
bool mVisible
 
QCustomPlotmParentPlot
 
QPointer< QCPLayerablemParentLayerable
 
QCPLayermLayer
 
bool mAntialiased
 

Dodatkowe Dziedziczone Składowe

- Sygnały dziedziczone z QCPAbstractItem
void selectionChanged (bool selected)
 
void selectableChanged (bool selectable)
 
- Sygnały dziedziczone z QCPLayerable
void layerChanged (QCPLayer *newLayer)
 

Opis szczegółowy

A bracket for referencing/highlighting certain parts in the plot.

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

It has two positions, left and right, which define the span of the bracket. If left is actually farther to the left than right, the bracket is opened to the bottom, as shown in the example image.

The bracket supports multiple styles via setStyle. The length, i.e. how far the bracket stretches away from the embraced span, can be controlled with setLength.

Demonstrating the effect of different values for setLength, for styles bsCalligraphic and bsSquare. Anchors and positions are displayed for reference.

It provides an anchor center, to allow connection of other items, e.g. an arrow (QCPItemLine or QCPItemCurve) or a text label (QCPItemText), to the bracket.

Definicja w linii 6608 pliku qcustomplot.h.

Dokumentacja składowych wyliczanych

◆ AnchorIndex

Wartości wyliczeń
aiCenter 

Definicja w linii 6655 pliku qcustomplot.h.

◆ BracketStyle

Defines the various visual shapes of the bracket item. The appearance can be further modified by setLength and setPen.

Zobacz również
setStyle
Wartości wyliczeń
bsSquare 

A brace with angled edges.

bsRound 

A brace with round edges.

bsCurly 

A curly brace.

bsCalligraphic 

A curly brace with varying stroke width giving a calligraphic impression.

Definicja w linii 6624 pliku qcustomplot.h.

Dokumentacja konstruktora i destruktora

◆ QCPItemBracket()

QCPItemBracket::QCPItemBracket ( QCustomPlot parentPlot)
explicit

Creates a bracket 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.

Definicja w linii 30008 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:

◆ ~QCPItemBracket()

QCPItemBracket::~QCPItemBracket ( )
virtual

Definicja w linii 30023 pliku qcustomplot.cpp.

Dokumentacja funkcji składowych

◆ anchorPixelPosition()

QPointF QCPItemBracket::anchorPixelPosition ( int  anchorId) const
protectedvirtual

Reimplementowana z QCPAbstractItem.

Definicja w linii 30183 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:

◆ draw()

void QCPItemBracket::draw ( QCPPainter painter)
protectedvirtual

Implementuje QCPAbstractItem.

Definicja w linii 30115 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:

◆ length()

double QCPItemBracket::length ( ) const
inline

Definicja w linii 6637 pliku qcustomplot.h.

Oto graf wywoływań tej funkcji:

◆ mainPen()

QPen QCPItemBracket::mainPen ( ) const
protected

Definicja w linii 30208 pliku qcustomplot.cpp.

Oto graf wywoływań tej funkcji:

◆ pen()

QPen QCPItemBracket::pen ( ) const
inline

Definicja w linii 6635 pliku qcustomplot.h.

Oto graf wywoływań tej funkcji:

◆ selectedPen()

QPen QCPItemBracket::selectedPen ( ) const
inline

Definicja w linii 6636 pliku qcustomplot.h.

◆ selectTest()

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

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 0 as details to indicate that you are not interested in those selection details.

Zobacz również
selectEvent, deselectEvent, mousePressEvent, wheelEvent, QCustomPlot::setInteractions, QCPAbstractPlottable1D::selectTestRect

Implementuje QCPAbstractItem.

Definicja w linii 30075 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:

◆ setLength()

void QCPItemBracket::setLength ( double  length)

Sets the length in pixels how far the bracket extends in the direction towards the embraced span of the bracket (i.e. perpendicular to the left-right-direction)

Demonstrating the effect of different values for setLength, for styles bsCalligraphic and bsSquare. Anchors and positions are displayed for reference.

Definicja w linii 30059 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:

◆ setPen()

void QCPItemBracket::setPen ( const QPen &  pen)

Sets the pen that will be used to draw the bracket.

Note that when the style is bsCalligraphic, only the color will be taken from the pen, the stroke and width are ignored. To change the apparent stroke width of a calligraphic bracket, use setLength, which has a similar effect.

Zobacz również
setSelectedPen

Definicja w linii 30036 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:
Oto graf wywoływań tej funkcji:

◆ setSelectedPen()

void QCPItemBracket::setSelectedPen ( const QPen &  pen)

Sets the pen that will be used to draw the bracket when selected

Zobacz również
setPen, setSelected

Definicja w linii 30046 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:
Oto graf wywoływań tej funkcji:

◆ setStyle()

void QCPItemBracket::setStyle ( QCPItemBracket::BracketStyle  style)

Sets the style of the bracket, i.e. the shape/visual appearance.

Zobacz również
setPen

Definicja w linii 30069 pliku qcustomplot.cpp.

Oto graf wywołań dla tej funkcji:

◆ style()

BracketStyle QCPItemBracket::style ( ) const
inline

Definicja w linii 6638 pliku qcustomplot.h.

Oto graf wywoływań tej funkcji:

Dokumentacja atrybutów składowych

◆ center

QCPItemAnchor* const QCPItemBracket::center

Definicja w linii 6651 pliku qcustomplot.h.

◆ left

QCPItemPosition* const QCPItemBracket::left

Definicja w linii 6649 pliku qcustomplot.h.

◆ mLength

double QCPItemBracket::mLength
protected

Definicja w linii 6657 pliku qcustomplot.h.

◆ mPen

QPen QCPItemBracket::mPen
protected

Definicja w linii 6656 pliku qcustomplot.h.

◆ mSelectedPen

QPen QCPItemBracket::mSelectedPen
protected

Definicja w linii 6656 pliku qcustomplot.h.

◆ mStyle

BracketStyle QCPItemBracket::mStyle
protected

Definicja w linii 6658 pliku qcustomplot.h.

◆ right

QCPItemPosition* const QCPItemBracket::right

Definicja w linii 6650 pliku qcustomplot.h.


Dokumentacja dla tej klasy została wygenerowana z plików: