kicad/pcbnew/tools/pcb_grid_helper.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014 CERN
* Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* 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 2
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef PCB_GRID_HELPER_H
#define PCB_GRID_HELPER_H
#include <vector>
#include <tool/grid_helper.h>
class TOOL_MANAGER;
class PCB_GRID_HELPER : public GRID_HELPER
{
public:
PCB_GRID_HELPER( TOOL_MANAGER* aToolMgr, MAGNETIC_SETTINGS* aMagneticSettings );
/**
* Function GetSnapped
* If the PCB_GRID_HELPER has highlighted a snap point (target shown), this function
* will return a pointer to the item to which it snapped.
*
* @return NULL if not snapped. Pointer to snapped item otherwise
*/
BOARD_ITEM* GetSnapped() const;
VECTOR2I AlignToSegment ( const VECTOR2I& aPoint, const SEG& aSeg );
VECTOR2I BestDragOrigin( const VECTOR2I& aMousePos, std::vector<BOARD_ITEM*>& aItem );
VECTOR2I AlignToArc ( const VECTOR2I& aPoint, const SHAPE_ARC& aSeg );
/**
* Chooses the "best" snap anchor around the given point, optionally taking layers from
* the reference item. The reference item will not be snapped to (it is being dragged or
* created) and we choose the layers that can be snapped based on the reference item layer
* @param aOrigin Point we want to snap from
* @param aReferenceItem Reference item for layer/type special casing
* @return snapped screen point
*/
VECTOR2I BestSnapAnchor( const VECTOR2I& aOrigin, BOARD_ITEM* aReferenceItem );
VECTOR2I BestSnapAnchor( const VECTOR2I& aOrigin, const LSET& aLayers,
const std::vector<BOARD_ITEM*>& aSkip = {} );
private:
std::set<BOARD_ITEM*> queryVisible( const BOX2I& aArea,
const std::vector<BOARD_ITEM*>& aSkip ) const;
ANCHOR* nearestAnchor( const VECTOR2I& aPos, int aFlags, LSET aMatchLayers );
/**
* computeAnchors inserts the local anchor points in to the grid helper for the specified
* board item, given the reference point and the direction of use for the point.
*
* @param aItem The board item for which to compute the anchors
* @param aRefPos The point for which to compute the anchors (if used by the component)
* @param aFrom Is this for an anchor that is designating a source point (aFrom=true) or not
*/
void computeAnchors( BOARD_ITEM* aItem, const VECTOR2I& aRefPos, bool aFrom = false );
private:
MAGNETIC_SETTINGS* m_magneticSettings;
};
#endif