Class: QgsCurveEditorWidget

class qgis.gui.QgsCurveEditorWidget(parent: QWidget = None, curve: QgsCurveTransform = QgsCurveTransform())

Bases: PyQt5.QtWidgets.QWidget

Constructor for QgsCurveEditorWidget.

A widget for manipulating QgsCurveTransform curves.

New in version 3.0.

Parameters

  • parent (QWidget = None) –

  • curve –

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.

See also

minHistogramValueRange()

See also

setMaxHistogramValueRange()

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.

See also

maxHistogramValueRange()

See also

setMinHistogramValueRange()

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.

See also

minHistogramValueRange()

See also

maxHistogramValueRange()

Parameters
setMaxHistogramValueRange(self, maxValueRange: float)

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

See also

setMinHistogramValueRange()

See also

maxHistogramValueRange()

Parameters

maxValueRange (float) –

setMinHistogramValueRange(self, minValueRange: float)

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

See also

setMaxHistogramValueRange()

See also

minHistogramValueRange()

Parameters

minValueRange (float) –

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