Class: QgsRendererWidget

class qgis.gui.QgsRendererWidget

Bases: QgsPanelWidget

Base class for renderer settings widgets.

WORKFLOW: - open renderer dialog with some RENDERER (never null!) - find out which widget to use - instantiate it and set in stacked widget - on any change of renderer type, create some default (dummy?) version and change the stacked widget - when clicked OK/Apply, get the renderer from active widget and clone it for the layer

Methods

actionEvent

apply

applyChanges

This method should be called whenever the renderer is actually set on the layer.

changeEvent

changeSymbolAngle

Change marker angles of selected symbols

changeSymbolColor

Change color of selected symbols

changeSymbolOpacity

Change opacity of selected symbols

changeSymbolSize

Change marker sizes of selected symbols

changeSymbolUnit

Change units mm/map units of selected symbols

changeSymbolWidth

Change line widths of selected symbols

childEvent

closeEvent

connectNotify

context

Returns the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts.

contextMenuEvent

contextMenuViewCategories

param p

copy

create

createDataDefinedSizeLegendWidget

Creates widget to setup data-defined size legend.

customEvent

destroy

disconnectNotify

dragEnterEvent

dragLeaveEvent

dragMoveEvent

dropEvent

enterEvent

event

focusInEvent

focusNextChild

focusNextPrevChild

focusOutEvent

focusPreviousChild

hideEvent

initPainter

inputMethodEvent

isSignalConnected

keyPressEvent

Overridden key press event to handle the esc event on the widget.

keyReleaseEvent

leaveEvent

metric

mouseDoubleClickEvent

mouseMoveEvent

mousePressEvent

mouseReleaseEvent

moveEvent

nativeEvent

paintEvent

paste

pasteSymbolToSelection

Pastes the clipboard symbol over selected items.

receivers

refreshSymbolView

renderer

Returns pointer to the renderer (no transfer of ownership)

resizeEvent

selectedSymbols

Subclasses may provide the capability of changing multiple symbols at once by implementing the following two methods and by connecting the slot contextMenuViewCategories(const QPoint&).

sender

senderSignalIndex

setContext

Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts.

setDockMode

param dockMode

setSymbolLevels

Sets the symbol levels for the renderer defined in the widget.

sharedPainter

showEvent

showSymbolLevelsDialog

show a dialog with renderer's symbol level settings

tabletEvent

timerEvent

updateMicroFocus

vectorLayer

Returns the vector layer associated with the widget.

wheelEvent

Signals

layerVariablesChanged

Emitted when expression context variables on the associated vector layers have been changed.

symbolLevelsChanged

Emitted when the symbol levels settings have been changed.

actionEvent(self, QActionEvent)
apply()
applyChanges(self)

This method should be called whenever the renderer is actually set on the layer.

changeEvent(self, QEvent)
changeSymbolAngle(self)

Change marker angles of selected symbols

changeSymbolColor(self)

Change color of selected symbols

changeSymbolOpacity(self)

Change opacity of selected symbols

changeSymbolSize(self)

Change marker sizes of selected symbols

changeSymbolUnit(self)

Change units mm/map units of selected symbols

changeSymbolWidth(self)

Change line widths of selected symbols

childEvent(self, QChildEvent)
closeEvent(self, QCloseEvent)
connectNotify(self, QMetaMethod)
context(self) QgsSymbolWidgetContext

Returns the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts.

See also

setContext()

New in version 3.0.

Return type

QgsSymbolWidgetContext

contextMenuEvent(self, QContextMenuEvent)
contextMenuViewCategories(self, p: QPoint)
Parameters

p (QPoint) –

copy(self)
create(self, window: sip.voidptr = 0, initializeWindow: bool = True, destroyOldWindow: bool = True)
createDataDefinedSizeLegendWidget(self, symbol: QgsMarkerSymbol, ddsLegend: QgsDataDefinedSizeLegend) QgsDataDefinedSizeLegendWidget

Creates widget to setup data-defined size legend. Returns newly created panel - may be None if it could not be opened. Ownership is transferred to the caller.

New in version 3.0.

Parameters
Return type

QgsDataDefinedSizeLegendWidget

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)

Overridden key press event to handle the esc event on the widget.

Parameters

event – The key event

keyReleaseEvent(self, QKeyEvent)
layerVariablesChanged

Emitted when expression context variables on the associated vector layers have been changed. Will request the parent dialog to re-synchronize with the variables. [signal]

leaveEvent(self, QEvent)
metric(self, QPaintDevice.PaintDeviceMetric) int
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)
paste(self)
pasteSymbolToSelection(self)

Pastes the clipboard symbol over selected items.

New in version 3.10.

receivers(self, PYQT_SIGNAL) int
refreshSymbolView(self)
renderer(self) QgsFeatureRenderer

Returns pointer to the renderer (no transfer of ownership)

Return type

QgsFeatureRenderer

resizeEvent(self, QResizeEvent)
selectedSymbols(self) List[QgsSymbol]

Subclasses may provide the capability of changing multiple symbols at once by implementing the following two methods and by connecting the slot contextMenuViewCategories(const QPoint&).

Return type

List[QgsSymbol]

sender(self) QObject
senderSignalIndex(self) int
setContext(self, context: QgsSymbolWidgetContext)

Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts.

Parameters

context (QgsSymbolWidgetContext) – symbol widget context

See also

context()

New in version 3.0.

setDockMode(self, dockMode: bool)
Parameters

dockMode (bool) –

setSymbolLevels(self, levels: Iterable[QgsLegendSymbolItem], enabled: bool)

Sets the symbol levels for the renderer defined in the widget.

The levels argument defines the updated list of symbols with rendering passes set.

The enabled arguments specifies if symbol levels should be enabled for the renderer.

New in version 3.16.9.

Parameters
sharedPainter(self) QPainter
showEvent(self, QShowEvent)
showSymbolLevelsDialog(self, r: QgsFeatureRenderer)

show a dialog with renderer’s symbol level settings

Parameters

r (QgsFeatureRenderer) –

symbolLevelsChanged

Emitted when the symbol levels settings have been changed.

Deprecated since version QGIS: 3.16.9 – no longer emitted. [signal]

tabletEvent(self, QTabletEvent)
timerEvent(self, QTimerEvent)
updateMicroFocus(self)
vectorLayer(self) QgsVectorLayer

Returns the vector layer associated with the widget.

New in version 2.12.

Return type

QgsVectorLayer

wheelEvent(self, QWheelEvent)