Class: QgsCurveEditorWidget

class qgis.gui.QgsCurveEditorWidget

Bases: PyQt5.QtWidgets.QWidget

A widget for manipulating QgsCurveTransform curves.

New in version 3.0.

QgsCurveEditorWidget(parent: QWidget = None, curve: QgsCurveTransform = QgsCurveTransform()) Constructor for QgsCurveEditorWidget.

Methods

actionEvent

changeEvent

childEvent

closeEvent

connectNotify

contextMenuEvent

create

curve

Returns a curve representing the current curve from the widget.

customEvent

destroy

disconnectNotify

dragEnterEvent

dragLeaveEvent

dragMoveEvent

dropEvent

enterEvent

event

focusInEvent

focusNextChild

focusNextPrevChild

focusOutEvent

focusPreviousChild

hideEvent

initPainter

inputMethodEvent

isSignalConnected

keyPressEvent

param event

keyReleaseEvent

leaveEvent

maxHistogramValueRange

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

metric

minHistogramValueRange

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

mouseDoubleClickEvent

mouseMoveEvent

mousePressEvent

mouseReleaseEvent

moveEvent

nativeEvent

paintEvent

receivers

resizeEvent

sender

senderSignalIndex

setCurve

Sets the curve to show in the widget.

setHistogramSource

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

setMaxHistogramValueRange

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

setMinHistogramValueRange

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

sharedPainter

showEvent

tabletEvent

timerEvent

updateMicroFocus

wheelEvent

Signals

changed

Emitted when the widget curve changes [signal]

actionEvent(self, QActionEvent)
changeEvent(self, QEvent)
changed

Emitted when the widget curve changes [signal]

childEvent(self, QChildEvent)
closeEvent(self, QCloseEvent)
connectNotify(self, QMetaMethod)
contextMenuEvent(self, QContextMenuEvent)
create(self, window: sip.voidptr = 0, initializeWindow: bool = True, destroyOldWindow: bool = True)
curve(self)QgsCurveTransform

Returns a curve representing the current curve from the widget.

See also

setCurve()

Return type

QgsCurveTransform

customEvent(self, QEvent)
destroy(self, destroyWindow: bool = True, destroySubWindows: bool = True)
disconnectNotify(self, QMetaMethod)
dragEnterEvent(self, QDragEnterEvent)
dragLeaveEvent(self, QDragLeaveEvent)
dragMoveEvent(self, QDragMoveEvent)
dropEvent(self, QDropEvent)
enterEvent(self, QEvent)
event(self, QEvent)bool
focusInEvent(self, QFocusEvent)
focusNextChild(self)bool
focusNextPrevChild(self, bool)bool
focusOutEvent(self, QFocusEvent)
focusPreviousChild(self)bool
hideEvent(self, QHideEvent)
initPainter(self, QPainter)
inputMethodEvent(self, QInputMethodEvent)
isSignalConnected(self, QMetaMethod)bool
keyPressEvent(self, event: QKeyEvent)
Parameters

event (QKeyEvent) –

keyReleaseEvent(self, QKeyEvent)
leaveEvent(self, QEvent)
maxHistogramValueRange(self)float

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

Return type

float

metric(self, QPaintDevice.PaintDeviceMetric)int
minHistogramValueRange(self)float

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

Return type

float

mouseDoubleClickEvent(self, QMouseEvent)
mouseMoveEvent(self, QMouseEvent)
mousePressEvent(self, QMouseEvent)
mouseReleaseEvent(self, QMouseEvent)
moveEvent(self, QMoveEvent)
nativeEvent(self, Union[QByteArray, bytes, bytearray], sip.voidptr)Tuple[bool, int]
paintEvent(self, QPaintEvent)
receivers(self, PYQT_SIGNAL)int
resizeEvent(self, QResizeEvent)
sender(self)QObject
senderSignalIndex(self)int
setCurve(self, curve: QgsCurveTransform)

Sets the curve to show in the widget.

See also

curve()

Parameters

curve (QgsCurveTransform) –

setHistogramSource(self, layer: QgsVectorLayer, expression: str)

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.

Parameters
setMaxHistogramValueRange(self, maxValueRange: float)

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

Parameters

maxValueRange (float) –

setMinHistogramValueRange(self, minValueRange: float)

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

Parameters

minValueRange (float) –

sharedPainter(self)QPainter
showEvent(self, QShowEvent)
tabletEvent(self, QTabletEvent)
timerEvent(self, QTimerEvent)
updateMicroFocus(self)
wheelEvent(self, QWheelEvent)