qgsowssourcewidget.cpp

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/***************************************************************************
    qgsowssourcewidget.cpp
     --------------------------------------
    Date                 : November 2021
    Copyright            : (C) 2021 by Samweli Mwakisambwe
    Email                : samweli at kartoza dot com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#include "qgsowssourcewidget.h"
#include "qgsproviderregistry.h"
#include "qgsmapcanvas.h"
 
#include <QNetworkRequest>
 
 
QgsOWSSourceWidget::QgsOWSSourceWidget( const QString &providerKey, QWidget *parent )
  : QgsProviderSourceWidget( parent )
  , mProviderKey( providerKey )
{
  setupUi( this );
 
  QgsCoordinateReferenceSystem destinationCrs;
  QgsCoordinateReferenceSystem crs = QgsCoordinateReferenceSystem( QStringLiteral( "EPSG:4326" ) );
  mSpatialExtentBox->setOutputCrs( crs );
}
 
 
void QgsOWSSourceWidget::setMapCanvas( QgsMapCanvas *canvas )
{
  QgsProviderSourceWidget::setMapCanvas( canvas );
 
  QgsCoordinateReferenceSystem destinationCrs;
  QgsCoordinateReferenceSystem crs = QgsCoordinateReferenceSystem( QStringLiteral( "EPSG:4326" ) );
 
  if ( mapCanvas() && mapCanvas()->mapSettings().destinationCrs().isValid() )
    destinationCrs = mapCanvas()->mapSettings().destinationCrs();
  else
    destinationCrs = crs;
 
  mSpatialExtentBox->setOutputCrs( destinationCrs );
  mSpatialExtentBox->setMapCanvas( mapCanvas() );
}
 
 
void QgsOWSSourceWidget::setExtent( const QgsRectangle &extent )
{
  QgsCoordinateReferenceSystem destinationCrs;
  QgsCoordinateReferenceSystem crs = QgsCoordinateReferenceSystem( QStringLiteral( "EPSG:4326" ) );
  mSpatialExtentBox->setOutputCrs( crs );
 
  if ( mapCanvas() && mapCanvas()->mapSettings().destinationCrs().isValid() )
    destinationCrs = mapCanvas()->mapSettings().destinationCrs();
  else
    destinationCrs = crs;
  mSpatialExtentBox->setCurrentExtent( extent, destinationCrs );
  mSpatialExtentBox->setOutputExtentFromCurrent();
  mSpatialExtentBox->setMapCanvas( mapCanvas() );
}
 
QgsRectangle QgsOWSSourceWidget::extent() const
{
  return mSpatialExtentBox->outputExtent();
}
 
void QgsOWSSourceWidget::setSourceUri( const QString &uri )
{
  mSourceParts = QgsProviderRegistry::instance()->decodeUri( mProviderKey, uri );
  bool inverted = mSourceParts.value( QStringLiteral( "InvertAxisOrientation" ) ).toBool();
 
  QString bbox = mSourceParts.value( QStringLiteral( "bbox" ) ).toString();
  QgsRectangle extent;
  if ( !bbox.isEmpty() )
  {
    QStringList coords = bbox.split( ',' );
    extent = inverted ? QgsRectangle(
               coords.takeAt( 1 ).toDouble(),
               coords.takeAt( 0 ).toDouble(),
               coords.takeAt( 2 ).toDouble(),
               coords.takeAt( 3 ).toDouble() ) :
             QgsRectangle(
               coords.takeAt( 0 ).toDouble(),
               coords.takeAt( 1 ).toDouble(),
               coords.takeAt( 2 ).toDouble(),
               coords.takeAt( 3 ).toDouble() );
  }
  else
  {
    extent = QgsRectangle();
  }
 
  setExtent( extent );
  mSpatialExtentBox->setChecked( !extent.isNull() );
}
 
QString QgsOWSSourceWidget::sourceUri() const
{
  QVariantMap parts = mSourceParts;
 
  QgsRectangle spatialExtent = extent();
 
  if ( mSpatialExtentBox->isChecked() && !spatialExtent.isNull() )
  {
    bool inverted = parts.value( QStringLiteral( "InvertAxisOrientation" ) ).toBool();
 
    QString bbox = QString( inverted ? "%2,%1,%4,%3" : "%1,%2,%3,%4" )
                   .arg( qgsDoubleToString( spatialExtent.xMinimum() ),
                         qgsDoubleToString( spatialExtent.yMinimum() ),
                         qgsDoubleToString( spatialExtent.xMaximum() ),
                         qgsDoubleToString( spatialExtent.yMaximum() ) );
 
    parts.insert( QStringLiteral( "bbox" ), bbox );
  }
 
 
  return QgsProviderRegistry::instance()->encodeUri( mProviderKey, parts );
}