pns_multi_dragger.h

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/*
 * KiRouter - a push-and-(sometimes-)shove PCB router
 *
 * Copyright (C) 2024 KiCad Developers, see AUTHORS.txt for contributors.
 * Author: Tomasz Wlostowski <[email protected]>
 *
 * This program 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.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __PNS_MULTI_DRAGGER_H
#define __PNS_MULTI_DRAGGER_H
 
#include <memory>
#include <math/vector2d.h>
 
#include "pns_node.h"
#include "pns_via.h"
#include "pns_line.h"
#include "pns_drag_algo.h"
#include "pns_itemset.h"
#include "pns_layerset.h"
#include "pns_mouse_trail_tracer.h"
 
namespace PNS {
 
class ROUTER;
class SHOVE;
class OPTIMIZER;
 
class MULTI_DRAGGER : public DRAG_ALGO
{
public:
     MULTI_DRAGGER( ROUTER* aRouter );
    ~MULTI_DRAGGER();
 
    virtual bool Start( const VECTOR2I& aP, ITEM_SET& aPrimitives ) override;
 
    bool Drag( const VECTOR2I& aP ) override;
 
    bool FixRoute( bool aForceCommit ) override;
 
    NODE* CurrentNode() const override;
 
    const std::vector<NET_HANDLE> CurrentNets() const override;
 
    int CurrentLayer() const override;
 
    const ITEM_SET Traces() override;
 
    void SetMode( PNS::DRAG_MODE aDragMode ) override;
 
    PNS::DRAG_MODE Mode() const override;
 
// Use case: we are dragging multiple tracks. The router erases a few of them, adds a few new ones. For the ease of use, it would be good for the tracks the be still selected when
// the drag operation is completed. This method returns a set of the 'leader' (segments/arcs that have been selected for multi-fragging)  
    virtual std::vector<PNS::ITEM*> GetLastCommittedLeaderSegments() override { return m_leaderSegments; };
 
    virtual bool GetForceMarkObstaclesMode( bool* aDragStatus ) const override
    {
        *aDragStatus = m_dragStatus;
        return false;
    }
 
    
 
private:
 
    
 
 
    struct MDRAG_LINE
    {
 
        ITEM* leaderItem = nullptr;
        std::vector<PNS::ITEM*> originalLeaders;
 
 
        bool isStrict = false;
        bool isMidSeg = false;
        bool isCorner = false;
        bool isDraggable = false;
 
        int leaderSegIndex = -1;
        bool cornerIsLast = false;
 
        PNS::LINE originalLine; // complete line (in a bundle) to drag
        PNS::LINE preDragLine; // complete line (in a bundle) to drag
        PNS::LINE draggedLine; // result of the drag calculation
        PNS::LINE preShoveLine; // result of the drag calculation
        bool dragOK = false;
        bool      isPrimaryLine = false; // when true, it's the "leader"/"primary one" - the one the cursor is attached to
        bool clipDone = false;
        int       offset; // distance between this line and the primary one (only applicable if the respective end segments are parallel)
        SEG midSeg;
//        VECTOR2I dragAnchor;
        int dragDist;
        int cornerDistance, leaderSegDistance;
    };
 
    bool multidragMarkObstacles ( std::vector<MDRAG_LINE>& aCompletedLines );
    bool multidragShove ( std::vector<MDRAG_LINE>& aCompletedLines );
    bool multidragWalkaround ( std::vector<MDRAG_LINE>& aCompletedLines );
    void restoreLeaderSegments( std::vector<MDRAG_LINE>& aCompletedLines );
    int findNewLeaderSegment( const MDRAG_LINE& aLine ) const;
    bool tryWalkaround( NODE* aNode, LINE& aOrig, LINE& aWalk );
 
 
    int                     m_mode;
    bool                    m_dragStatus;
    PNS_MODE                m_currentMode;
    DRAG_MODE               m_dragMode;
    std::vector<MDRAG_LINE> m_mdragLines;
    std::vector<PNS::ITEM*> m_leaderSegments;
    NODE* m_lastNode;
    NODE* m_preShoveNode;
    ITEM_SET                m_origDraggedItems;
    ITEM_SET                m_draggedItems;
    VECTOR2I m_dragStartPoint;
    SEG m_guide;
    std::unique_ptr<SHOVE> m_shove;
    
};
 
}
 
#endif