selection.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013-2017 CERN
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 * @author Tomasz Wlostowski <[email protected]>
 * @author Maciej Suminski <[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 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 SELECTION_H
#define SELECTION_H

#include <core/optional.h>
#include <core/typeinfo.h>
#include <deque>
#include <eda_rect.h>
#include <view/view_group.h>

class EDA_ITEM;

class SELECTION : public KIGFX::VIEW_GROUP
{
public:
 SELECTION() :
 KIGFX::VIEW_GROUP::VIEW_GROUP()
 {
 m_isHover = false;
 }

 SELECTION( const SELECTION& aOther ) :
 KIGFX::VIEW_GROUP::VIEW_GROUP()
 {
 m_items = aOther.m_items;
 m_isHover = aOther.m_isHover;
 }

 SELECTION& operator= ( const SELECTION& aOther )
 {
 m_items = aOther.m_items;
 m_isHover = aOther.m_isHover;
 return *this;
 }

 using ITER = std::deque<EDA_ITEM*>::iterator;
 using CITER = std::deque<EDA_ITEM*>::const_iterator;

 ITER begin() { return m_items.begin(); }
 ITER end() { return m_items.end(); }
 CITER begin() const { return m_items.cbegin(); }
 CITER end() const { return m_items.cend(); }

 void SetIsHover( bool aIsHover )
 {
 m_isHover = aIsHover;
 }

 bool IsHover() const
 {
 return m_isHover;
 }

 virtual void Add( EDA_ITEM* aItem );

 virtual void Remove( EDA_ITEM *aItem );

 virtual void Clear() override
 {
 m_items.clear();
 }

 virtual unsigned int GetSize() const override
 {
 return m_items.size();
 }

 virtual KIGFX::VIEW_ITEM* GetItem( unsigned int aIdx ) const override;

 bool Contains( EDA_ITEM* aItem ) const;

 bool Empty() const
 {
 return m_items.empty();
 }

 int Size() const
 {
 return m_items.size();
 }

 const std::deque<EDA_ITEM*> GetItems() const
 {
 return m_items;
 }

 virtual VECTOR2I GetCenter() const;

 virtual const BOX2I ViewBBox() const override
 {
 BOX2I r;
 r.SetMaximum();
 return r;
 }

 VECTOR2I GetPosition() const
 {
 return static_cast<VECTOR2I>( GetBoundingBox().GetPosition() );
 }

 virtual EDA_RECT GetBoundingBox() const;

 virtual EDA_ITEM* GetTopLeftItem( bool onlyModules = false ) const
 {
 return nullptr;
 }

 EDA_ITEM* operator[]( const size_t aIdx ) const
 {
 if( aIdx < m_items.size() )
 return m_items[ aIdx ];

 return nullptr;
 }

 EDA_ITEM* Front() const
 {
 return m_items.size() ? m_items.front() : nullptr;
 }

 std::deque<EDA_ITEM*>& Items()
 {
 return m_items;
 }

 template<class T>
 T* FirstOfKind() const
 {
 for( auto item : m_items )
 {
 if( IsA<T, EDA_ITEM>( item ) )
 return static_cast<T*> ( item );
 }

 return nullptr;
 }

 bool HasType( KICAD_T aType ) const;

 size_t CountType( KICAD_T aType ) const;

 virtual const std::vector<KIGFX::VIEW_ITEM*> updateDrawList() const override;

 bool HasReferencePoint() const
 {
 return m_referencePoint != NULLOPT;
 }

 VECTOR2I GetReferencePoint() const
 {
 if( m_referencePoint )
 return *m_referencePoint;
 else
 return GetBoundingBox().Centre();
 }

 void SetReferencePoint( const VECTOR2I& aP )
 {
 m_referencePoint = aP;
 }

 void ClearReferencePoint()
 {
 m_referencePoint = NULLOPT;
 }

 bool AreAllItemsIdentical() const;

 bool OnlyContains( std::vector<KICAD_T> aList ) const;

protected:
 OPT<VECTOR2I> m_referencePoint;
 std::deque<EDA_ITEM*> m_items;
 bool m_isHover;

 // mute hidden overloaded virtual function warnings
 using VIEW_GROUP::Add;
 using VIEW_GROUP::Remove;
};


#endif