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.

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