Use QgsCoordinateOperationWidget in QgsDatumTransformDialog

qgis · Dec 20, 2019 · f0f63d3 · f0f63d3
1 parent 0cd49ca
commit f0f63d3
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Showing 7 changed files with 160 additions and 816 deletions.
diff --git a/python/gui/auto_generated/qgscoordinateoperationwidget.sip.in b/python/gui/auto_generated/qgscoordinateoperationwidget.sip.in
@@ -30,6 +30,8 @@ a source and destination coordinate reference system.
       int destinationTransformId;
 
       QString proj;
+
+      bool isAvailable;
     };
 
     QgsCoordinateOperationWidget( QWidget *parent = 0 );
@@ -84,6 +86,21 @@ the current canvas state.
     void setShowMakeDefault( bool show );
 %Docstring
 Sets whether the "make default" checkbox should be shown.
+%End
+
+    bool makeDefaultSelected() const;
+%Docstring
+Returns ``True`` if the "make default" option is selected.
+%End
+
+    bool hasSelection() const;
+%Docstring
+Returns ``True`` if there is a valid selection in the widget.
+%End
+
+    QList< QgsCoordinateOperationWidget::OperationDetails > availableOperations() const;
+%Docstring
+Returns a list of the available operations shown in the widget.
 %End
 
     QgsCoordinateOperationWidget::OperationDetails defaultOperation() const;

diff --git a/src/gui/qgscoordinateoperationwidget.cpp b/src/gui/qgscoordinateoperationwidget.cpp
@@ -122,6 +122,42 @@ void QgsCoordinateOperationWidget::setShowMakeDefault( bool show )
   mMakeDefaultCheckBox->setVisible( show );
 }
 
+bool QgsCoordinateOperationWidget::makeDefaultSelected() const
+{
+  return mMakeDefaultCheckBox->isChecked();
+}
+
+bool QgsCoordinateOperationWidget::hasSelection() const
+{
+  return !mCoordinateOperationTableWidget->selectedItems().isEmpty();
+}
+
+QList<QgsCoordinateOperationWidget::OperationDetails> QgsCoordinateOperationWidget::availableOperations() const
+{
+  QList<QgsCoordinateOperationWidget::OperationDetails> res;
+  res.reserve( mDatumTransforms.size() );
+#if PROJ_VERSION_MAJOR>=6
+  for ( const QgsDatumTransform::TransformDetails &details : mDatumTransforms )
+  {
+    OperationDetails op;
+    op.proj = details.proj;
+    op.sourceTransformId = -1;
+    op.destinationTransformId = -1;
+    op.isAvailable = details.isAvailable;
+    res << op;
+  }
+#else
+  for ( const QgsDatumTransform::TransformPair &details : mDatumTransforms )
+  {
+    OperationDetails op;
+    op.sourceTransformId = details.sourceTransformId;
+    op.destinationTransformId = details.destinationTransformId;
+    res << op;
+  }
+#endif
+  return res;
+}
+
 void QgsCoordinateOperationWidget::loadAvailableOperations()
 {
   mCoordinateOperationTableWidget->setRowCount( 0 );
@@ -442,6 +478,7 @@ QgsCoordinateOperationWidget::OperationDetails QgsCoordinateOperationWidget::def
     if ( transform.isAvailable )
     {
       preferred.proj = transform.proj;
+      preferred.isAvailable = transform.isAvailable;
       break;
     }
   }
@@ -532,6 +569,7 @@ QgsCoordinateOperationWidget::OperationDetails QgsCoordinateOperationWidget::sel
     QTableWidgetItem *destItem = mCoordinateOperationTableWidget->item( row, 1 );
     op.destinationTransformId = destItem ? destItem->data( TransformIdRole ).toInt() : -1;
     op.proj = srcItem ? srcItem->data( ProjRole ).toString() : QString();
+    op.isAvailable = srcItem ? srcItem->data( AvailableRole ).toBool() : true;
   }
   else
   {

diff --git a/src/gui/qgscoordinateoperationwidget.h b/src/gui/qgscoordinateoperationwidget.h
@@ -46,6 +46,9 @@ class GUI_EXPORT QgsCoordinateOperationWidget : public QWidget, private Ui::QgsC
 
       //! Proj coordinate operation description, for Proj >= 6.0 builds only
       QString proj;
+
+      //! TRUE if operation is available
+      bool isAvailable = true;
     };
 
     /**
@@ -98,6 +101,21 @@ class GUI_EXPORT QgsCoordinateOperationWidget : public QWidget, private Ui::QgsC
      */
     void setShowMakeDefault( bool show );
 
+    /**
+     * Returns TRUE if the "make default" option is selected.
+     */
+    bool makeDefaultSelected() const;
+
+    /**
+     * Returns TRUE if there is a valid selection in the widget.
+     */
+    bool hasSelection() const;
+
+    /**
+     * Returns a list of the available operations shown in the widget.
+     */
+    QList< QgsCoordinateOperationWidget::OperationDetails > availableOperations() const;
+
     /**
      * Returns the details of the default operation suggested by the widget.
      */