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 // ct_lvtqtc_edge_based_tool.h                                                                                 -*-C++-*-
 
 /*
 // Copyright 2023 Codethink Ltd <codethink@codethink.co.uk>
 // SPDX-License-Identifier: Apache-2.0
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
 
 #ifndef INCLUDED_LVTQTC_EDGE_BASED_TOOL
 #define INCLUDED_LVTQTC_EDGE_BASED_TOOL
 
 #include <ct_lvtqtc_itool.h>
 #include <lvtqtc_export.h>
 #include <memory>
 
 namespace Codethink::lvtqtc {
 class LakosEntity;
 }
 
 namespace Codethink::lvtqtc {
 
 class LVTQTC_EXPORT EdgeBasedTool : public ITool {
     Q_OBJECT
   public:
     ~EdgeBasedTool() override;
 
     void mousePressEvent(QMouseEvent *event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
     void activate() override;
     void deactivate() override;
     static std::vector<std::pair<LakosEntity *, LakosEntity *>> calculateHierarchy(LakosEntity *source,
                                                                                    LakosEntity *target);
 
   protected:
     EdgeBasedTool(const QString& name, const QString& tooltip, const QIcon& icon, GraphicsView *gv);
     virtual bool run(LakosEntity *source, LakosEntity *target) = 0;
 
   private:
     struct Private;
     std::unique_ptr<Private> d;
 };
 
 } // namespace Codethink::lvtqtc
 
 #endif