Graph Class Reference

Represents a single data graph within a QCustomPlot, managing its data, visual style, and axes mapping. More...

#include <graph.h>

Inheritance diagram for Graph:

Public Types
enum	PlotStyles {   psLine , psDotLine , psStepLine , psDotStepLine ,   psImpulse , psBar , psStackedBar , psDot ,   psSquare , psDiamond , psCross , psPlus ,   psCircle }
	Defines the available visual styles for plotting data. More...

Public Member Functions
	Graph (QCustomPlot *parent, QCPAxis *keyAxis=nullptr, QCPAxis *valueAxis=nullptr)
	Constructs a new Graph.
	~Graph ()
	Destroys the Graph.
QString	name () const
	Retrieves the name of the graph.
void	setName (const QString &name)
	Sets the name of the graph.
QRgb	color () const
	Retrieves the color of the graph.
void	setColor (const QRgb color)
	Sets the color of the graph.
bool	visible () const
	Checks if the graph is currently visible.
void	setVisible (bool visible)
	Sets the visibility of the graph.
double	yAxisFactor () const
	Retrieves the scaling factor for the Y-axis.
void	setYAxisFactor (double y_axis_factor)
	Sets the scaling factor for the Y-axis.
QCPGraph *	graph () const
	Retrieves the underlying QCPGraph object.
QCPBars *	bars () const
	Retrieves the underlying QCPBars object.
bool	addToLegend ()
	Adds the graph to the parent plot's legend.
bool	setPlotStyle (PlotStyles style)
	Sets the visual style of the plot.

Public Attributes
const qreal	graph_line_width_ = 1.0

Static Public Attributes
static constexpr double	default_y_axis_factor_ = 1

Protected Member Functions
void	applyCurrentColor ()
	Applies the currently set color to the underlying graphical elements.
bool	removeFromLegend ()
	Removes the graph from the parent plot's legend.
void	clearAllData ()
	Clears all data points currently loaded into the graph.

Protected Attributes
QCustomPlot *	parent_
QCPGraph *	graph_
QCPBars *	bars_
QString	name_
QBrush	color_
bool	visible_
double	y_axis_factor_

Detailed Description

Represents a single data graph within a QCustomPlot, managing its data, visual style, and axes mapping.

Member Enumeration Documentation

PlotStyles

enum Graph::PlotStyles

Defines the available visual styles for plotting data.

Enumerator
psLine	Continuous line plot.
psDotLine	Dotted line plot.
psStepLine	Step line plot.
psDotStepLine	Dotted step line plot.
psImpulse	Impulse (stem) plot.
psBar	Bar chart.
psStackedBar	Stacked bar chart.
psDot	Data points as dots.
psSquare	Data points as squares.
psDiamond	Data points as diamonds.
psCross	Data points as crosses (x).
psPlus	Data points as plus signs (+).
psCircle	Data points as circles.

Constructor & Destructor Documentation

Graph()

Graph::Graph ( QCustomPlot *  parent, QCPAxis *  keyAxis = nullptr, QCPAxis *  valueAxis = nullptr  )

explicit

Constructs a new Graph.

Parameters

parent	The parent QCustomPlot widget.
keyAxis	The axis to use for key (X) coordinates (defaults to nullptr).
valueAxis	The axis to use for value (Y) coordinates (defaults to nullptr).

Member Function Documentation

addToLegend()

bool Graph::addToLegend

(

)

Adds the graph to the parent plot's legend.

Returns

True if successfully added, false otherwise.

bars()

QCPBars * Graph::bars ( ) const

inline

Retrieves the underlying QCPBars object.

Returns

A pointer to the QCPBars instance.

color()

QRgb Graph::color

(

)

const

Retrieves the color of the graph.

Returns

The QRgb color value.

graph()

QCPGraph * Graph::graph ( ) const

inline

Retrieves the underlying QCPGraph object.

Returns

A pointer to the QCPGraph instance.

name()

QString Graph::name ( ) const

inline

Retrieves the name of the graph.

Returns

The graph name.

removeFromLegend()

bool Graph::removeFromLegend ( )

protected

Removes the graph from the parent plot's legend.

Returns

True if successfully removed, false otherwise.

setColor()

void Graph::setColor

(

const QRgb

color

)

Sets the color of the graph.

Parameters

color

The new QRgb color value.

setName()

void Graph::setName

(

const QString &

name

)

Sets the name of the graph.

Parameters

name	The new name string.

setPlotStyle()

bool Graph::setPlotStyle

(

PlotStyles

style

)

Sets the visual style of the plot.

Parameters

style

The PlotStyles enum value to apply.

Returns

True if the style was successfully applied, false otherwise.

setVisible()

void Graph::setVisible

(

bool

visible

)

Sets the visibility of the graph.

Parameters

visible

True to show the graph, false to hide it.

setYAxisFactor()

void Graph::setYAxisFactor

(

double

y_axis_factor

)

Sets the scaling factor for the Y-axis.

Parameters

y_axis_factor

The new scaling factor.

visible()

bool Graph::visible ( ) const

inline

Checks if the graph is currently visible.

Returns

True if visible, false otherwise.

yAxisFactor()

double Graph::yAxisFactor ( ) const

inline

Retrieves the scaling factor for the Y-axis.

Returns

The Y-axis factor.

Member Data Documentation

bars_

QCPBars* Graph::bars_

protected

Pointer to the underlying QCPBars instance.

color_

QBrush Graph::color_

protected

The brush color of the graph.

default_y_axis_factor_

constexpr double Graph::default_y_axis_factor_ = 1

staticconstexpr

The default multiplication factor applied to the Y-axis.

graph_

QCPGraph* Graph::graph_

protected

Pointer to the underlying QCPGraph instance.

graph_line_width_

const qreal Graph::graph_line_width_ = 1.0

The default line width used when drawing the graph.

name_

QString Graph::name_

protected

The name of the graph.

parent_

QCustomPlot* Graph::parent_

protected

Pointer to the parent QCustomPlot widget.

visible_

bool Graph::visible_

protected

Flag indicating whether the graph is currently visible.

y_axis_factor_

double Graph::y_axis_factor_

protected

The scaling factor applied to the Y-axis.

---

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

• /builds/wireshark/wireshark/ui/qt/graph.h
• /builds/wireshark/wireshark/ui/qt/graph.cpp