This class offers a dialog to change feature selections. More...

#include <qgsexpressionselectiondialog.h>

Inheritance diagram for QgsExpressionSelectionDialog:

Public Member Functions
	QgsExpressionSelectionDialog (QgsVectorLayer layer, const QString &startText=QString(), QWidget parent=nullptr)
	Creates a new selection dialog. More...

QgsExpressionBuilderWidget *	expressionBuilder ()
	The builder widget that is used by the dialog. More...

QString	expressionText ()
	Returns the current expression text. More...

void	setExpressionText (const QString &text)
	Sets the current expression text. More...

void	setGeomCalculator (const QgsDistanceArea &da)
	Sets geometry calculator used in distance/area calculations. More...

void	setMapCanvas (QgsMapCanvas *canvas)
	Sets a map canvas associated with the dialog. More...

void	setMessageBar (QgsMessageBar *messageBar)
	Sets the message bar to display feedback from the dialog. More...

Protected Member Functions
void	closeEvent (QCloseEvent *closeEvent) override
	Implementation for closeEvent Saves the window geometry. More...

void	done (int r) override
	Implementation for done (default behavior when pressing esc) Calls close, so the window geometry gets saved and the object deleted. More...

Detailed Description

This class offers a dialog to change feature selections.

To do so, a QgsExpressionBuilderWidget is shown in a dialog. It offers the possibilities to create a new selection, add to the current selection remove from the current selection or select within the current selection.

Definition at line 36 of file qgsexpressionselectiondialog.h.

Constructor & Destructor Documentation

QgsExpressionSelectionDialog::QgsExpressionSelectionDialog	(	QgsVectorLayer *	layer,
		const QString &	startText = `QString()`,
		QWidget *	parent = `nullptr`
	)

Creates a new selection dialog.

Parameters

layer	The layer on which the selection is to be performed.
startText	A default expression text to be applied (Defaults to empty)
parent	parent object (owner)

Definition at line 28 of file qgsexpressionselectiondialog.cpp.