Class: QgsProjectionSelectionTreeWidget

class qgis.gui.QgsProjectionSelectionTreeWidget(parent: QWidget = None)

Bases: PyQt5.QtWidgets.QWidget

Constructor for QgsProjectionSelectionTreeWidget.

A widget for selecting a coordinate reference system from a tree.

This widget implements a tree view of projections, as seen in the QgsProjectionSelectionDialog dialog. In most cases it is more suitable to use the compact QgsProjectionSelectionWidget widget.

New in version 3.0.

Parameters

parent

actionEvent()
changeEvent()
childEvent()
closeEvent()
connectNotify()
contextMenuEvent()
create()
crs(self) → QgsCoordinateReferenceSystem

Returns the CRS currently selected in the widget.

See also

setCrs()

New in version 3.0.

Return type

QgsCoordinateReferenceSystem

crsSelected

Emitted when a projection is selected in the widget. [signal]

customEvent()
destroy()
disconnectNotify()
dragEnterEvent()
dragLeaveEvent()
dragMoveEvent()
dropEvent()
enterEvent()
event()
focusInEvent()
focusNextChild()
focusNextPrevChild()
focusOutEvent()
focusPreviousChild()
hasValidSelection(self) → bool

Returns True if the current selection in the widget is a valid choice. Valid selections include any projection and also the “no/invalid projection” option (if setShowNoProjection() was called). Invalid selections are the group headers (such as “Geographic Coordinate Systems”

Return type

bool

hideEvent()
initPainter()
initialized

Notifies others that the widget is now fully initialized, including deferred selection of projection.

New in version 2.4: [signal]

inputMethodEvent()
isSignalConnected()
keyPressEvent()
keyReleaseEvent()
leaveEvent()
metric()
mouseDoubleClickEvent()
mouseMoveEvent()
mousePressEvent()
mouseReleaseEvent()
moveEvent()
nativeEvent()
paintEvent()
previewRect(self) → QgsRectangle

The initial “preview” rectangle for the bounds overview map.

See also

previewRect()

New in version 3.0.

Return type

QgsRectangle

projectionDoubleClicked

Emitted when a projection is double clicked in the list.

New in version 2.14: [signal]

pushProjectionToFront(self)

Marks the current selected projection for push to front of recent projections list.

receivers()
resizeEvent(self, event: QResizeEvent)
Parameters

event (QResizeEvent) –

sender()
senderSignalIndex()
setCrs(self, crs: QgsCoordinateReferenceSystem)

Sets the initial crs to show within the dialog.

See also

crs()

New in version 3.0.

Parameters

crs (QgsCoordinateReferenceSystem) –

setOgcWmsCrsFilter(self, crsFilter: Iterable[str])

filters this widget by the given CRSs

Sets this widget to filter the available projections to those listed by the given Coordinate Reference Systems.

Parameters

crsFilter (Iterable[str]) – a list of OGC Coordinate Reference Systems to filter the list of projections by. This is useful in (e.g.) WMS situations where you just want to offer what the WMS server can support.

Warning

This function’s behavior is undefined if it is called after the widget is shown.

setPreviewRect(self, rect: QgsRectangle)

Sets the initial “preview” rectangle for the bounds overview map.

See also

previewRect()

New in version 3.0.

Parameters

rect (QgsRectangle) –

setShowBoundsMap(self, show: bool)

Sets whether to show the bounnds preview map.

See also

showBoundsMap()

New in version 3.0.

Parameters

show (bool) –

setShowNoProjection(self, show: bool)

Sets whether a “no/invalid” projection option should be shown. If this option is selected, calling crs() will return an invalid QgsCoordinateReferenceSystem.

New in version 3.0.

Parameters

show (bool) –

sharedPainter()
showBoundsMap(self) → bool

Returns whether the bounds preview map is shown.

New in version 3.0.

Return type

bool

showEvent(self, event: QShowEvent)
Parameters

event (QShowEvent) –

showNoProjection(self) → bool

Returns whether the “no/invalid” projection option is shown. If this option is selected, calling crs() will return an invalid QgsCoordinateReferenceSystem.

New in version 3.0.

Return type

bool

tabletEvent()
timerEvent()
updateMicroFocus()
wheelEvent()