Add context menu to empty plot window area (#14243)

* Add context menu to empty plot window area
Improve drag'n'drop into empty plot window area

ApplicationLibCode/Commands/SummaryPlotCommands/CMakeLists_files.cmake

@@ -1,5 +1,6 @@
 set(SOURCE_GROUP_SOURCE_FILES
     ${CMAKE_CURRENT_LIST_DIR}/RicOpenSummaryPlotEditorFeature.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/RicOpenSummaryPlotEditorFromDockAreaFeature.cpp
     ${CMAKE_CURRENT_LIST_DIR}/RicNewDefaultSummaryPlotFeature.cpp
     ${CMAKE_CURRENT_LIST_DIR}/RicNewSummaryCurveFeature.cpp
     ${CMAKE_CURRENT_LIST_DIR}/RicSummaryPlotFeatureImpl.cpp

ApplicationLibCode/Commands/SummaryPlotCommands/RicOpenSummaryPlotEditorFromDockAreaFeature.cpp

@@ -0,0 +1,29 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2026    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.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#include "RicOpenSummaryPlotEditorFromDockAreaFeature.h"
+
+CAF_CMD_SOURCE_INIT( RicOpenSummaryPlotEditorFromDockAreaFeature, "RicOpenSummaryPlotEditorFromDockAreaFeature" );
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+bool RicOpenSummaryPlotEditorFromDockAreaFeature::isCommandEnabled() const
+{
+    return true;
+}

ApplicationLibCode/Commands/SummaryPlotCommands/RicOpenSummaryPlotEditorFromDockAreaFeature.h

@@ -0,0 +1,32 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2026     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 "RicOpenSummaryPlotEditorFeature.h"
+
+//==================================================================================================
+///
+//==================================================================================================
+class RicOpenSummaryPlotEditorFromDockAreaFeature : public RicOpenSummaryPlotEditorFeature
+{
+    CAF_CMD_HEADER_INIT;
+
+protected:
+    bool isCommandEnabled() const override;
+};