QGIS API Documentation 3.29.0-Master (006c3c0232)
qgscoordinateoperationwidget.h
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1/***************************************************************************
2 qgscoordinateoperationwidget.h
3 ------------------------------
4 begin : December 2019
5 copyright : (C) 2019 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#ifndef QGSCOORDINATEOPERATIONWIDGET_H
19#define QGSCOORDINATEOPERATIONWIDGET_H
20
21#include "ui_qgscoordinateoperationwidgetbase.h"
23#include "qgis_gui.h"
24
33class GUI_EXPORT QgsCoordinateOperationWidget : public QWidget, private Ui::QgsCoordinateOperationWidgetBase
34{
35 Q_OBJECT
36 public:
37
40 {
42 int sourceTransformId = -1;
43
45 int destinationTransformId = -1;
46
48 QString proj;
49
51 bool isAvailable = true;
52
54 bool allowFallback = true;
55 };
56
60 QgsCoordinateOperationWidget( QWidget *parent = nullptr );
61
63
70 QgsCoordinateReferenceSystem sourceCrs() const { return mSourceCrs; }
71
78 QgsCoordinateReferenceSystem destinationCrs() const { return mDestinationCrs; }
79
86 void setSourceCrs( const QgsCoordinateReferenceSystem &crs );
87
94 void setDestinationCrs( const QgsCoordinateReferenceSystem &crs );
95
100 void setMapCanvas( QgsMapCanvas *canvas );
101
105 void setShowMakeDefault( bool show );
106
110 bool makeDefaultSelected() const;
111
115 bool hasSelection() const;
116
120 QList< QgsCoordinateOperationWidget::OperationDetails > availableOperations() const;
121
125 QgsCoordinateOperationWidget::OperationDetails defaultOperation() const;
126
131 QgsCoordinateOperationWidget::OperationDetails selectedOperation() const;
132
137 void setSelectedOperation( const QgsCoordinateOperationWidget::OperationDetails &operation );
138
145 void setSelectedOperationUsingContext( const QgsCoordinateTransformContext &context );
146
152 void setShowFallbackOption( bool visible );
153
154 signals:
155
160
165
166 private slots:
167
168 void tableCurrentItemChanged( QTableWidgetItem *, QTableWidgetItem * );
169
170 void showSupersededToggled( bool toggled );
171
172 void installGrid();
173
174 private:
175
176 enum Roles
177 {
178 TransformIdRole = Qt::UserRole + 1,
179 ProjRole,
180 AvailableRole,
181 BoundsRole,
182 MissingGridsRole,
183 MissingGridPackageNamesRole,
184 MissingGridUrlsRole
185 };
186
187 bool gridShiftTransformation( const QString &itemText ) const;
189 bool testGridShiftFileAvailability( QTableWidgetItem *item ) const;
190 void loadAvailableOperations();
191
195 QString formatScope( const QString &scope );
196
197 QList< QgsDatumTransform::TransformDetails > mDatumTransforms;
198
200 QgsCoordinateReferenceSystem mDestinationCrs;
201 OperationDetails mPreviousOp;
202 int mBlockSignals = 0;
203};
204
205#endif // QGSCOORDINATEOPERATIONWIDGET_H
A widget for selecting the coordinate operation to use when transforming between a source and destina...
QgsCoordinateReferenceSystem sourceCrs() const
Returns the source CRS for the operations shown in the widget.
void operationChanged()
Emitted when the operation selected in the dialog is changed.
void operationDoubleClicked()
Emitted when an operation is double-clicked in the widget.
QgsCoordinateReferenceSystem destinationCrs() const
Returns the destination CRS for the operations shown in the widget.
This class represents a coordinate reference system (CRS).
Contains information about the context in which a coordinate transform is executed.
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:90
const QgsCoordinateReferenceSystem & crs
QString proj
Proj coordinate operation description, for Proj >= 6.0 builds only.