Add processing algorithms/toolbox functionality

cmake/qgis-cmake-wrapper.cmake

@@ -173,5 +173,9 @@ if(TRUE) # Should possibly have a "static only" check
       Qt::DBus
     )
   endif()
+
+  find_package(GSL REQUIRED)
+
   target_link_libraries(QGIS::Analysis INTERFACE QGIS::Core)
+  target_link_libraries(QGIS::Analysis INTERFACE GSL::gsl)
 endif()

images/images.qrc

@@ -21,6 +21,7 @@
         <file>themes/qfield/nodpi/ic_pause_black_24dp.svg</file>
         <file>themes/qfield/nodpi/ic_play_black_24dp.svg</file>
         <file>themes/qfield/nodpi/ic_pin_black_24dp.svg</file>
+        <file>themes/qfield/nodpi/ic_processing_black_24dp.svg</file>
         <file>themes/qfield/nodpi/ic_internal_receiver_black_24dp.svg</file>
         <file>themes/qfield/nodpi/ic_bluetooth_receiver_black_24dp.svg</file>
         <file>themes/qfield/nodpi/ic_tcp_receiver_black_24dp.svg</file>

src/core/CMakeLists.txt

@@ -32,6 +32,9 @@ set(QFIELD_CORE_SRCS
     positioning/udpreceiver.cpp
     positioning/positioning.cpp
     positioning/positioningdevicemodel.cpp
+    processing/processingalgorithm.cpp
+    processing/processingalgorithmparametersmodel.cpp
+    processing/processingalgorithmsmodel.cpp
     appcoordinateoperationhandlers.cpp
     appinterface.cpp
     attributeformmodel.cpp
@@ -145,6 +148,9 @@ set(QFIELD_CORE_HDRS
     positioning/nmeagnssreceiver.h
     positioning/tcpreceiver.h
     positioning/udpreceiver.h
+    processing/processingalgorithm.h
+    processing/processingalgorithmparametersmodel.h
+    processing/processingalgorithmsmodel.h
     appcoordinateoperationhandlers.h
     appinterface.h
     attributeformmodel.h
@@ -303,7 +309,8 @@ target_include_directories(
          ${CMAKE_SOURCE_DIR}/src/core/platforms
          ${CMAKE_SOURCE_DIR}/src/core/qgsquick
          ${CMAKE_SOURCE_DIR}/src/core/utils
-         ${CMAKE_SOURCE_DIR}/src/core/positioning)
+         ${CMAKE_SOURCE_DIR}/src/core/positioning
+         ${CMAKE_SOURCE_DIR}/src/core/processing)
 if(ANDROID)
   string(REPLACE "_" "_1" APP_PACKAGE_JNI_NAME "${APP_PACKAGE_NAME}")
   configure_file(platforms/android/qfield_android.h.in

src/core/multifeaturelistmodel.cpp

@@ -105,31 +105,36 @@ int MultiFeatureListModel::selectedCount() const
   return mSourceModel->selectedCount();
 }
 
-bool MultiFeatureListModel::canEditAttributesSelection()
+bool MultiFeatureListModel::canEditAttributesSelection() const
 {
   return mSourceModel->canEditAttributesSelection();
 }
 
-bool MultiFeatureListModel::canMergeSelection()
+bool MultiFeatureListModel::canMergeSelection() const
 {
   return mSourceModel->canMergeSelection();
 }
 
-bool MultiFeatureListModel::canDeleteSelection()
+bool MultiFeatureListModel::canDeleteSelection() const
 {
   return mSourceModel->canDeleteSelection();
 }
 
-bool MultiFeatureListModel::canDuplicateSelection()
+bool MultiFeatureListModel::canDuplicateSelection() const
 {
   return mSourceModel->canDuplicateSelection();
 }
 
-bool MultiFeatureListModel::canMoveSelection()
+bool MultiFeatureListModel::canMoveSelection() const
 {
   return mSourceModel->canMoveSelection();
 }
 
+bool MultiFeatureListModel::canProcessSelection() const
+{
+  return mSourceModel->canProcessSelection();
+}
+
 bool MultiFeatureListModel::mergeSelection()
 {
   return mSourceModel->mergeSelection();

src/core/multifeaturelistmodel.h

@@ -38,6 +38,7 @@ class MultiFeatureListModel : public QSortFilterProxyModel
     Q_PROPERTY( bool canDeleteSelection READ canDeleteSelection NOTIFY selectedCountChanged )
     Q_PROPERTY( bool canDuplicateSelection READ canDuplicateSelection NOTIFY selectedCountChanged )
     Q_PROPERTY( bool canMoveSelection READ canMoveSelection NOTIFY selectedCountChanged )
+    Q_PROPERTY( bool canProcessSelection READ canProcessSelection NOTIFY selectedCountChanged )
 
   public:
     enum FeatureListRoles
@@ -94,19 +95,22 @@ class MultiFeatureListModel : public QSortFilterProxyModel
     int selectedCount() const;
 
     //! Returns TRUE if the selected features can have their attributes value changed
-    bool canEditAttributesSelection();
+    bool canEditAttributesSelection() const;
 
     //! Returns TRUE if the selected features can be merged
-    bool canMergeSelection();
+    bool canMergeSelection() const;
 
     //! Returns TRUE if the selected features can be deleted
-    bool canDeleteSelection();
+    bool canDeleteSelection() const;
 
     //! Returns TRUE if the selected features can be duplicated onto their associated layer
-    bool canDuplicateSelection();
+    bool canDuplicateSelection() const;
 
     //! Returns TRUE if the selected features' geometry can be moved
-    bool canMoveSelection();
+    bool canMoveSelection() const;
+
+    //! Returns TRUE if the selected features can run processing algorithms
+    bool canProcessSelection() const;
 
     /**
      * Merges selected features by updating the first seleted feature's geometry

src/core/multifeaturelistmodelbase.cpp

@@ -318,7 +318,7 @@ int MultiFeatureListModelBase::selectedCount() const
   return static_cast<int>( mSelectedFeatures.size() );
 }
 
-bool MultiFeatureListModelBase::canEditAttributesSelection()
+bool MultiFeatureListModelBase::canEditAttributesSelection() const
 {
   if ( mSelectedFeatures.isEmpty() )
     return false;
@@ -327,7 +327,7 @@ bool MultiFeatureListModelBase::canEditAttributesSelection()
   return !vlayer->readOnly() && ( vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeAttributeValues );
 }
 
-bool MultiFeatureListModelBase::canMergeSelection()
+bool MultiFeatureListModelBase::canMergeSelection() const
 {
   if ( mSelectedFeatures.isEmpty() )
     return false;
@@ -336,7 +336,7 @@ bool MultiFeatureListModelBase::canMergeSelection()
   return !vlayer->readOnly() && QgsWkbTypes::isMultiType( vlayer->wkbType() ) && ( vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::DeleteFeatures ) && ( vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeGeometries ) && !vlayer->customProperty( QStringLiteral( "QFieldSync/is_geometry_locked" ), false ).toBool();
 }
 
-bool MultiFeatureListModelBase::canDeleteSelection()
+bool MultiFeatureListModelBase::canDeleteSelection() const
 {
   if ( mSelectedFeatures.isEmpty() )
     return false;
@@ -345,7 +345,7 @@ bool MultiFeatureListModelBase::canDeleteSelection()
   return !vlayer->readOnly() && ( vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::DeleteFeatures ) && !vlayer->customProperty( QStringLiteral( "QFieldSync/is_geometry_locked" ), false ).toBool();
 }
 
-bool MultiFeatureListModelBase::canDuplicateSelection()
+bool MultiFeatureListModelBase::canDuplicateSelection() const
 {
   if ( mSelectedFeatures.isEmpty() )
     return false;
@@ -354,7 +354,39 @@ bool MultiFeatureListModelBase::canDuplicateSelection()
   return !vlayer->readOnly() && ( vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::AddFeatures ) && !vlayer->customProperty( QStringLiteral( "QFieldSync/is_geometry_locked" ), false ).toBool();
 }
 
-bool MultiFeatureListModelBase::canMoveSelection()
+bool MultiFeatureListModelBase::canMoveSelection() const
+{
+  if ( mSelectedFeatures.isEmpty() )
+    return false;
+
+  QgsVectorLayer *vlayer = mSelectedFeatures[0].first;
+  if ( !vlayer || vlayer->readOnly() || !( vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeGeometries ) || vlayer->customProperty( QStringLiteral( "QFieldSync/is_geometry_locked" ), false ).toBool() )
+    return false;
+
+  const bool geometryLockedExpressionActive = vlayer->customProperty( QStringLiteral( "QFieldSync/is_geometry_locked_expression_active" ), false ).toBool();
+  if ( geometryLockedExpressionActive )
+  {
+    const QString geometryLockedExpression = vlayer->customProperty( QStringLiteral( "QFieldSync/geometry_locked_expression" ), QString() ).toString().trimmed();
+    if ( !geometryLockedExpression.isEmpty() )
+    {
+      QgsExpressionContext expressionContext = vlayer->createExpressionContext();
+      for ( const QPair<QgsVectorLayer *, QgsFeature> &selectedFeature : std::as_const( mSelectedFeatures ) )
+      {
+        expressionContext.setFeature( selectedFeature.second );
+        QgsExpression expression( geometryLockedExpression );
+        expression.prepare( &expressionContext );
+        if ( !expression.evaluate( &expressionContext ).toBool() )
+        {
+          return false;
+        }
+      }
+    }
+  }
+
+  return true;
+}
+
+bool MultiFeatureListModelBase::canProcessSelection() const
 {
   if ( mSelectedFeatures.isEmpty() )
     return false;
@@ -674,6 +706,8 @@ void MultiFeatureListModelBase::attributeValueChanged( QgsFeatureId fid, int idx
       break;
     }
   }
+
+  emit selectedCountChanged();
 }
 
 void MultiFeatureListModelBase::geometryChanged( QgsFeatureId fid, const QgsGeometry &geometry )
@@ -703,4 +737,6 @@ void MultiFeatureListModelBase::geometryChanged( QgsFeatureId fid, const QgsGeom
       break;
     }
   }
+
+  emit selectedCountChanged();
 }

src/core/multifeaturelistmodelbase.h

@@ -66,19 +66,22 @@ class MultiFeatureListModelBase : public QAbstractItemModel
     int selectedCount() const;
 
     //! \copydoc MultiFeatureListModel::canEditAttributesSelection
-    bool canEditAttributesSelection();
+    bool canEditAttributesSelection() const;
 
     //! \copydoc MultiFeatureListModel::canMergeSelection
-    bool canMergeSelection();
+    bool canMergeSelection() const;
 
     //! \copydoc MultiFeatureListModel::canDeleteSelection
-    bool canDeleteSelection();
+    bool canDeleteSelection() const;
 
     //! \copydoc MultiFeatureListModel::canDuplicateSelection
-    bool canDuplicateSelection();
+    bool canDuplicateSelection() const;
 
     //! \copydoc MultiFeatureListModel::canMoveSelection
-    bool canMoveSelection();
+    bool canMoveSelection() const;
+
+    //! \copydoc MultiFeatureListModel::canProcessSelection
+    bool canProcessSelection() const;
 
     //! \copydoc MultiFeatureListModel::mergeSelection
     bool mergeSelection();