QGIS API Documentation 3.99.0-Master (26c88405ac0)
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qgsmapcanvasutils.h
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1/***************************************************************************
2 qgsmapcanvasutils.h
3 -------------------
4 begin : June 2020
5 copyright : (C) 2020 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSMAPCANVASUTILS_H
17#define QGSMAPCANVASUTILS_H
18
19#include "qgis_gui.h"
20
21class QgsMapCanvas;
22class QgsVectorLayer;
23class QString;
24
31class GUI_EXPORT QgsMapCanvasUtils
32{
33 public:
34
40 static long zoomToMatchingFeatures( QgsMapCanvas *canvas, QgsVectorLayer *layer, const QString &filter );
41
47 static long flashMatchingFeatures( QgsMapCanvas *canvas, QgsVectorLayer *layer, const QString &filter );
48
59 static QString filterForLayer( QgsMapCanvas *canvas, QgsVectorLayer *layer );
60};
61
62#endif //QGSMAPCANVASUTILS_H
Utility functions for working with QgsMapCanvas widgets.
static long zoomToMatchingFeatures(QgsMapCanvas *canvas, QgsVectorLayer *layer, const QString &filter)
Zooms a map canvas to features from the specified layer which match the given filter expression strin...
static QString filterForLayer(QgsMapCanvas *canvas, QgsVectorLayer *layer)
Constructs a filter to use for selecting features from the given layer, in order to apply filters whi...
static long flashMatchingFeatures(QgsMapCanvas *canvas, QgsVectorLayer *layer, const QString &filter)
Flashes features from the specified layer which match the given filter expression string with a map c...
Map canvas is a class for displaying all GIS data types on a canvas.
Represents a vector layer which manages a vector based dataset.