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.

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)