Start depreating

python/gui/auto_generated/qgssublayersdialog.sip.in

@@ -10,6 +10,11 @@
 
 class QgsSublayersDialog : QDialog
 {
+%Docstring(signature="appended")
+
+.. deprecated::
+   Will be removed in QGIS 4.0
+%End
 
 %TypeHeaderCode
 #include "qgssublayersdialog.h"
@@ -48,11 +53,11 @@ class QgsSublayersDialog : QDialog
     typedef QList<QgsSublayersDialog::LayerDefinition> LayerDefinitionList;
 
 
-    QgsSublayersDialog( ProviderType providerType,
-                        const QString &name,
-                        QWidget *parent /TransferThis/ = 0,
-                        Qt::WindowFlags fl = Qt::WindowFlags(),
-                        const QString &dataSourceUri = QString() );
+ QgsSublayersDialog( ProviderType providerType,
+                                          const QString &name,
+                                          QWidget *parent /TransferThis/ = 0,
+                                          Qt::WindowFlags fl = Qt::WindowFlags(),
+                                          const QString &dataSourceUri = QString() ) /Deprecated/;
 %Docstring
 Construct a new QgsSublayersDialog object - a dialog to select which sub layers to be imported from a data source (e.g. from geopackage or zipfile)
 
@@ -61,6 +66,9 @@ Construct a new QgsSublayersDialog object - a dialog to select which sub layers
 :param parent: parent widget of the dialog
 :param fl: window flags
 :param dataSourceUri: data source URI
+
+.. deprecated::
+   Will be removed in QGIS 4.0
 %End
 
     ~QgsSublayersDialog();

src/app/qgisapp.cpp

@@ -98,6 +98,9 @@
 #include "qgsvectorlayersavestyledialog.h"
 #include "maptools/qgsappmaptools.h"
 #include "qgsexpressioncontextutils.h"
+#include "qgsprovidersublayerdetails.h"
+#include "qgsproviderutils.h"
+#include "qgsprovidersublayersdialog.h"
 
 #include "qgsanalysis.h"
 #include "qgsgeometrycheckregistry.h"
@@ -7675,6 +7678,41 @@ bool QgisApp::openLayer( const QString &fileName, bool allowInteractive )
     }
   }
 
+  // query sublayers
+  QList< QgsProviderSublayerDetails > sublayers = QgsProviderRegistry::instance()->querySublayers( fileName );
+  if ( !sublayers.empty() )
+  {
+    bool detailsAreIncomplete = QgsProviderUtils::sublayerDetailsAreIncomplete( sublayers, false );
+    const bool singleSublayerOnly = sublayers.size() == 1;
+    if ( singleSublayerOnly && !detailsAreIncomplete )
+    {
+      // nice and easy -- we only have one sublayer, so load that
+    }
+    else if ( allowInteractive )
+    {
+      // prompt user for sublayers
+      QgsProviderSublayersDialog dlg( fileName, sublayers, this );
+
+      dlg.exec();
+    }
+    else // non-interactive
+    {
+      // in non-interactive mode we don't care if feature counts are missing, so re-test if
+      // details are incomplete with ignoring unknown feature counts
+      detailsAreIncomplete = QgsProviderUtils::sublayerDetailsAreIncomplete( sublayers, true );
+      if ( detailsAreIncomplete )
+      {
+        // requery sublayers, resolving geometry types
+        sublayers = QgsProviderRegistry::instance()->querySublayers( fileName, Qgis::SublayerQueryFlag::ResolveGeometryType );
+      }
+
+      // add all sublayers
+
+    }
+    ok = true;
+  }
+
+#if 0
   // try to load it as raster
   if ( QgsRasterLayer::isValidRasterFileName( fileName ) )
   {
@@ -7701,14 +7739,14 @@ bool QgisApp::openLayer( const QString &fileName, bool allowInteractive )
     }
   }
 
-
-  CPLPopErrorHandler();
-
   // Try to load as mesh layer after raster & vector
   if ( !ok )
   {
     ok = static_cast< bool >( addMeshLayerPrivate( fileName, fileInfo.completeBaseName(), QStringLiteral( "mdal" ), false ) );
   }
+#endif
+
+  CPLPopErrorHandler();
 
   if ( !ok )
   {

src/gui/qgssublayersdialog.h

@@ -25,6 +25,7 @@
 /**
  * \ingroup gui
  * \class QgsSublayersDialog
+ * \deprecated Will be removed in QGIS 4.0
  */
 class GUI_EXPORT QgsSublayersDialog : public QDialog, private Ui::QgsSublayersDialogBase
 {
@@ -97,12 +98,14 @@ class GUI_EXPORT QgsSublayersDialog : public QDialog, private Ui::QgsSublayersDi
      * \param parent parent widget of the dialog
      * \param fl window flags
      * \param dataSourceUri data source URI
+     *
+     * \deprecated Will be removed in QGIS 4.0
      */
-    QgsSublayersDialog( ProviderType providerType,
-                        const QString &name,
-                        QWidget *parent SIP_TRANSFERTHIS = nullptr,
-                        Qt::WindowFlags fl = Qt::WindowFlags(),
-                        const QString &dataSourceUri = QString() );
+    Q_DECL_DEPRECATED QgsSublayersDialog( ProviderType providerType,
+                                          const QString &name,
+                                          QWidget *parent SIP_TRANSFERTHIS = nullptr,
+                                          Qt::WindowFlags fl = Qt::WindowFlags(),
+                                          const QString &dataSourceUri = QString() ) SIP_DEPRECATED;
 
     ~QgsSublayersDialog() override;