Improved UI for surface band and curves (#8026)

* Add surface intersection bands and curves
* #8024 Ensemble Surface : Fix mix of files for a ensemble layer surface

ApplicationLibCode/ProjectDataModel/RimSurfaceIntersectionCollection.h

@@ -0,0 +1,59 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2021-     Equinor ASA
+//
+//  ResInsight 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 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include "RimCheckableObject.h"
+
+#include "cafPdmChildArrayField.h"
+
+class RimSurfaceIntersectionBand;
+class RimSurfaceIntersectionCurve;
+
+//==================================================================================================
+//
+//
+//
+//==================================================================================================
+class RimSurfaceIntersectionCollection : public RimCheckableObject
+{
+    CAF_PDM_HEADER_INIT;
+
+public:
+    caf::Signal<> objectChanged;
+
+public:
+    RimSurfaceIntersectionCollection();
+
+    RimSurfaceIntersectionCurve* addIntersectionCurve();
+    RimSurfaceIntersectionBand*  addIntersectionBand();
+
+    std::vector<RimSurfaceIntersectionCurve*> surfaceIntersectionCurves() const;
+    std::vector<RimSurfaceIntersectionBand*>  surfaceIntersectionBands() const;
+
+private:
+    void onChildDeleted( caf::PdmChildArrayFieldHandle*      childArray,
+                         std::vector<caf::PdmObjectHandle*>& referringObjects ) override;
+
+    void onObjectChanged( const caf::SignalEmitter* emitter );
+    void initAfterRead() override;
+
+private:
+    caf::PdmChildArrayField<RimSurfaceIntersectionBand*>  m_intersectionBands;
+    caf::PdmChildArrayField<RimSurfaceIntersectionCurve*> m_intersectionCurves;
+};