kicad/eeschema/tools/ee_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) 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 EE_GRID_HELPER_H
#define EE_GRID_HELPER_H
#include <math/vector2d.h>
#include <origin_viewitem.h>
#include <tool/grid_helper.h>
#include <ee_selection.h>
class SCH_ITEM;
enum EE_GRID_HELPER_LAYERS : int
{
LAYER_ANY = SCH_LAYER_ID_END + 1,
LAYER_CONNECTABLE,
LAYER_GRAPHICS
};
class EE_GRID_HELPER : public GRID_HELPER
{
public:
EE_GRID_HELPER( TOOL_MANAGER* aToolMgr );
/**
* Function GetSnapped
* If the EE_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
*/
SCH_ITEM* GetSnapped() const;
VECTOR2I BestDragOrigin( const VECTOR2I& aMousePos, int aLayer, const EE_SELECTION& aItems );
VECTOR2I BestSnapAnchor( const VECTOR2I& aOrigin, int aLayer, SCH_ITEM* aDraggedItem );
VECTOR2I BestSnapAnchor( const VECTOR2I& aOrigin, int aLayer, const EE_SELECTION& aSkip = {} );
private:
std::set<SCH_ITEM*> queryVisible( const BOX2I& aArea, const EE_SELECTION& aSkipList ) const;
ANCHOR* nearestAnchor( const VECTOR2I& aPos, int aFlags, int aMatchLayer );
/**
* Insert the local anchor points in to the grid helper for the specified
* schematic item, given the reference point and the direction of use for the point.
*
* @param aItem The schematic item for which to compute the anchors
* @param aRefPos The point for which to compute the anchors (if used by the symbol)
* @param aFrom Is this for an anchor that is designating a source point (aFrom=true) or not
*/
void computeAnchors( SCH_ITEM* aItem, const VECTOR2I& aRefPos, bool aFrom = false );
};
#endif