QgsCurveEditorWidget Class Reference

A widget for manipulating QgsCurveTransform curves. More...

#include <qgscurveeditorwidget.h>

Inheritance diagram for QgsCurveEditorWidget:

Public Slots
void	setMaxHistogramValueRange (double maxValueRange)
	Sets the maximum expected value for the range of values shown in the histogram. More...
void	setMinHistogramValueRange (double minValueRange)
	Sets the minimum expected value for the range of values shown in the histogram. More...

Signals
void	changed ()
	Emitted when the widget curve changes. More...

Public Member Functions
	QgsCurveEditorWidget (QWidget *parent=nullptr, const QgsCurveTransform &curve=QgsCurveTransform())
	Constructor for QgsCurveEditorWidget. More...
	~QgsCurveEditorWidget () override
QgsCurveTransform	curve () const
	Returns a curve representing the current curve from the widget. More...
double	maxHistogramValueRange () const
	Returns the maximum expected value for the range of values shown in the histogram. More...
double	minHistogramValueRange () const
	Returns the minimum expected value for the range of values shown in the histogram. More...
void	setCurve (const QgsCurveTransform &curve)
	Sets the curve to show in the widget. More...
void	setHistogramSource (const QgsVectorLayer *layer, const QString &expression)
	Sets a layer and expression source for values to show in a histogram behind the curve. More...

Protected Member Functions
void	keyPressEvent (QKeyEvent *event) override

Detailed Description

A widget for manipulating QgsCurveTransform curves.

Since

QGIS 3.0

Definition at line 143 of file qgscurveeditorwidget.h.

Constructor & Destructor Documentation

QgsCurveEditorWidget()

QgsCurveEditorWidget::QgsCurveEditorWidget	(	QWidget *	parent = nullptr,
		const QgsCurveTransform &	curve = QgsCurveTransform()
	)

Constructor for QgsCurveEditorWidget.

Definition at line 41 of file qgscurveeditorwidget.cpp.

~QgsCurveEditorWidget()

QgsCurveEditorWidget::~QgsCurveEditorWidget ( )

override

Definition at line 88 of file qgscurveeditorwidget.cpp.

Member Function Documentation

changed

void QgsCurveEditorWidget::changed ( )

signal

Emitted when the widget curve changes.

curve()

QgsCurveTransform QgsCurveEditorWidget::curve ( ) const

inline

Returns a curve representing the current curve from the widget.

See also

setCurve()

Definition at line 160 of file qgscurveeditorwidget.h.

keyPressEvent()

void QgsCurveEditorWidget::keyPressEvent ( QKeyEvent *  event )

overrideprotected

Definition at line 152 of file qgscurveeditorwidget.cpp.

maxHistogramValueRange()

double QgsCurveEditorWidget::maxHistogramValueRange ( ) const

inline

Returns the maximum expected value for the range of values shown in the histogram.

See also

minHistogramValueRange()

setMaxHistogramValueRange()

Definition at line 189 of file qgscurveeditorwidget.h.

minHistogramValueRange()

double QgsCurveEditorWidget::minHistogramValueRange ( ) const

inline

Returns the minimum expected value for the range of values shown in the histogram.

See also

maxHistogramValueRange()

setMinHistogramValueRange()

Definition at line 182 of file qgscurveeditorwidget.h.

setCurve()

void QgsCurveEditorWidget::setCurve

(

const QgsCurveTransform &

curve

)

Sets the curve to show in the widget.

See also

curve()

Definition at line 98 of file qgscurveeditorwidget.cpp.

setHistogramSource()

void QgsCurveEditorWidget::setHistogramSource	(	const QgsVectorLayer *	layer,
		const QString &	expression
	)

Sets a layer and expression source for values to show in a histogram behind the curve.

The histogram is generated in a background thread to keep the widget responsive.

See also

minHistogramValueRange()

maxHistogramValueRange()

Definition at line 105 of file qgscurveeditorwidget.cpp.

setMaxHistogramValueRange

void QgsCurveEditorWidget::setMaxHistogramValueRange ( double  maxValueRange )

slot

Sets the maximum expected value for the range of values shown in the histogram.

See also

setMinHistogramValueRange()

maxHistogramValueRange()

Definition at line 146 of file qgscurveeditorwidget.cpp.

setMinHistogramValueRange

void QgsCurveEditorWidget::setMinHistogramValueRange ( double  minValueRange )

slot

Sets the minimum expected value for the range of values shown in the histogram.

See also

setMaxHistogramValueRange()

minHistogramValueRange()

Definition at line 140 of file qgscurveeditorwidget.cpp.

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

• /build/qgis-3.10.0+15buster/src/gui/qgscurveeditorwidget.h
• /build/qgis-3.10.0+15buster/src/gui/qgscurveeditorwidget.cpp