509 lines
18 KiB
C++
509 lines
18 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2013-2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2008-2015 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
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* Copyright (C) 2008 Wayne Stambaugh <stambaughw@gmail.com>
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* Copyright (C) 2004-2022 KiCad Developers, see change_log.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef EDA_ITEM_H
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#define EDA_ITEM_H
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#include <deque>
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#include <core/typeinfo.h>
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#include <eda_item_flags.h>
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#include <eda_search_data.h>
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#include <view/view_item.h>
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#include <kiid.h>
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enum class BITMAPS : unsigned int;
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enum class INSPECT_RESULT
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{
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QUIT,
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CONTINUE
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};
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/**
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* Additional flag values wxFindReplaceData::m_Flags
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*/
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class UNITS_PROVIDER;
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class EDA_DRAW_FRAME;
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class MSG_PANEL_ITEM;
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/**
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* Used to inspect and possibly collect the (search) results of iterating over a list or
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* tree of #KICAD_T objects.
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*
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* Provide an implementation as needed to inspect EDA_ITEMs visited via #EDA_ITEM::Visit()
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* and #EDA_ITEM::IterateForward().
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*
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* FYI the std::function may hold a lambda, std::bind, pointer to func, or ptr to member
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* function, per modern C++. It is used primarily for searching, but not limited to that.
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* It can also collect or modify the scanned objects. 'Capturing' lambdas are particularly
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* convenient because they can use context and this often means @a aTestData is not used.
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*
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* @param aItem An #EDA_ITEM to examine.
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* @param aTestData is arbitrary data needed by the inspector to determine
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* if the EDA_ITEM under test meets its match criteria, and is often NULL
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* with the advent of capturing lambdas.
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* @return A #SEARCH_RESULT type #SEARCH_QUIT if the iterator function is to
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* stop the scan, else #SEARCH_CONTINUE;
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*/
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typedef std::function< INSPECT_RESULT ( EDA_ITEM* aItem, void* aTestData ) > INSPECTOR_FUNC;
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///< std::function passed to nested users by ref, avoids copying std::function.
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typedef const INSPECTOR_FUNC& INSPECTOR;
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/**
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* A base class for most all the KiCad significant classes used in schematics and boards.
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*/
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class EDA_ITEM : public KIGFX::VIEW_ITEM
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{
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public:
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virtual ~EDA_ITEM() { };
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/**
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* Returns the type of object.
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*
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* This attribute should never be changed after a ctor sets it, so there is no public
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* "setter" method.
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*
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* @return the type of object.
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*/
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inline KICAD_T Type() const { return m_structType; }
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EDA_ITEM* GetParent() const { return m_parent; }
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virtual void SetParent( EDA_ITEM* aParent ) { m_parent = aParent; }
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inline bool IsModified() const { return m_flags & IS_CHANGED; }
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inline bool IsNew() const { return m_flags & IS_NEW; }
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inline bool IsMoving() const { return m_flags & IS_MOVING; }
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inline bool IsSelected() const { return m_flags & SELECTED; }
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inline bool IsEntered() const { return m_flags & ENTERED; }
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inline bool IsBrightened() const { return m_flags & BRIGHTENED; }
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inline bool IsRollover() const
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{
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return ( m_flags & ( IS_ROLLOVER | IS_MOVING ) ) == IS_ROLLOVER;
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}
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inline void SetSelected() { SetFlags( SELECTED ); }
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inline void SetBrightened() { SetFlags( BRIGHTENED ); }
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inline void ClearSelected() { ClearFlags( SELECTED ); }
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inline void ClearBrightened() { ClearFlags( BRIGHTENED ); }
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void SetModified();
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void SetFlags( EDA_ITEM_FLAGS aMask ) { m_flags |= aMask; }
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void XorFlags( EDA_ITEM_FLAGS aMask ) { m_flags ^= aMask; }
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void ClearFlags( EDA_ITEM_FLAGS aMask = EDA_ITEM_ALL_FLAGS ) { m_flags &= ~aMask; }
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EDA_ITEM_FLAGS GetFlags() const { return m_flags; }
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bool HasFlag( EDA_ITEM_FLAGS aFlag ) const { return ( m_flags & aFlag ) == aFlag; }
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EDA_ITEM_FLAGS GetEditFlags() const
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{
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constexpr int mask =
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( IS_NEW | IS_PASTED | IS_MOVING | IS_BROKEN | IS_CHANGED | STRUCT_DELETED );
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return m_flags & mask;
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}
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void ClearTempFlags()
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{
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ClearFlags( CANDIDATE | SELECTED_BY_DRAG | IS_LINKED | SKIP_STRUCT );
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}
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void ClearEditFlags()
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{
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ClearFlags( GetEditFlags() );
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}
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virtual bool RenderAsBitmap( double aWorldScale ) const { return false; }
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void SetIsShownAsBitmap( bool aBitmap )
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{
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if( aBitmap )
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SetFlags( IS_SHOWN_AS_BITMAP );
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else
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ClearFlags( IS_SHOWN_AS_BITMAP );
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}
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inline bool IsShownAsBitmap() const { return m_flags & IS_SHOWN_AS_BITMAP; }
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/**
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* Check whether the item is one of the listed types.
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*
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* @param aScanTypes List of item types
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* @return true if the item type is contained in the list aScanTypes
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*/
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virtual bool IsType( const std::vector<KICAD_T>& aScanTypes ) const
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{
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for( KICAD_T scanType : aScanTypes )
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{
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if( scanType == SCH_LOCATE_ANY_T || scanType == m_structType )
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return true;
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}
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return false;
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}
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/**
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* Set and clear force visible flag used to force the item to be drawn even if it's draw
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* attribute is set to not visible.
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*
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* @param aEnable True forces the item to be drawn. False uses the item's visibility
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* setting to determine if the item is to be drawn.
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*/
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void SetForceVisible( bool aEnable ) { m_forceVisible = aEnable; }
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bool IsForceVisible() const { return m_forceVisible; }
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/**
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* Populate \a aList of #MSG_PANEL_ITEM objects with it's internal state for display
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* purposes.
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*
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* @param aList is the list to populate.
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*/
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virtual void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
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{
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}
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virtual wxString GetFriendlyName() const;
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/**
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* Test if \a aPosition is inside or on the boundary of this item.
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*
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* @param aPosition A reference to a VECTOR2I object containing the coordinates to test.
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* @param aAccuracy Increase the item bounding box by this amount.
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* @return True if \a aPosition is within the item bounding box.
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*/
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virtual bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const
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{
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return false; // derived classes should override this function
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}
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/**
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* Test if \a aRect intersects this item.
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*
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* @param aRect A reference to a #BOX2I object containing the rectangle to test.
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* @param aContained Set to true to test for containment instead of an intersection.
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* @param aAccuracy Increase \a aRect by this amount.
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* @return True if \a aRect contains or intersects the item bounding box.
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*/
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virtual bool HitTest( const BOX2I& aRect, bool aContained, int aAccuracy = 0 ) const
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{
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return false; // derived classes should override this function
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}
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/**
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* Return the orthogonal bounding box of this object for display purposes.
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*
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* This box should be an enclosing perimeter for visible components of this
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* object, and the units should be in the pcb or schematic coordinate
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* system. It is OK to overestimate the size by a few counts.
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*/
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virtual const BOX2I GetBoundingBox() const;
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virtual VECTOR2I GetPosition() const { return VECTOR2I(); }
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virtual void SetPosition( const VECTOR2I& aPos ){};
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/**
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* Similar to GetPosition, but allows items to return their visual center rather
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* than their anchor.
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*/
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virtual const VECTOR2I GetFocusPosition() const { return GetPosition(); }
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/**
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* Return the coordinates that should be used for sorting this element
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* visually compared to other elements. For instance, for lines the midpoint
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* might be a better sorting point than either end.
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*
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* @return X,Y coordinate of the sort point
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*/
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virtual VECTOR2I GetSortPosition() const { return GetPosition(); }
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/**
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* Create a duplicate of this item with linked list members set to NULL.
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*
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* The default version will return NULL in release builds and likely crash the
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* program. In debug builds, a warning message indicating the derived class
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* has not implemented cloning. This really should be a pure virtual function.
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* Due to the fact that there are so many objects derived from EDA_ITEM, the
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* decision was made to return NULL until all the objects derived from EDA_ITEM
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* implement cloning. Once that happens, this function should be made pure.
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*
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* @return A clone of the item.
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*/
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virtual EDA_ITEM* Clone() const; // should not be inline, to save the ~ 6 bytes per call site.
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/**
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* May be re-implemented for each derived class in order to handle all the types given
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* by its member data.
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*
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* Implementations should call inspector->Inspect() on types in aScanTypes, and may use
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* #IterateForward() to do so on lists of such data.
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*
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* @param inspector An #INSPECTOR instance to use in the inspection.
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* @param testData Arbitrary data used by the inspector.
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* @param aScanTypes Which #KICAD_T types are of interest and the order in which they should
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* be processed.
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* @return #SEARCH_RESULT SEARCH_QUIT if the Iterator is to stop the scan,
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* else #SCAN_CONTINUE, and determined by the inspector.
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*/
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virtual INSPECT_RESULT Visit( INSPECTOR inspector, void* testData,
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const std::vector<KICAD_T>& aScanTypes );
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/**
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* This changes first parameter to avoid the DList and use the main queue instead.
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*/
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template< class T >
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static INSPECT_RESULT IterateForward( std::deque<T>& aList, INSPECTOR inspector, void* testData,
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const std::vector<KICAD_T>& scanTypes )
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{
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for( const auto& it : aList )
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{
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if( static_cast<EDA_ITEM*>( it )->Visit( inspector,
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testData,
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scanTypes ) == INSPECT_RESULT::QUIT )
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{
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return INSPECT_RESULT::QUIT;
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}
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}
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return INSPECT_RESULT::CONTINUE;
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}
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/**
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* Change first parameter to avoid the DList and use std::vector instead.
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*/
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template <class T>
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static INSPECT_RESULT IterateForward( std::vector<T>& aList, INSPECTOR inspector,
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void* testData, const std::vector<KICAD_T>& scanTypes )
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{
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for( const auto& it : aList )
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{
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if( static_cast<EDA_ITEM*>( it )->Visit( inspector,
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testData,
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scanTypes ) == INSPECT_RESULT::QUIT )
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{
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return INSPECT_RESULT::QUIT;
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}
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}
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return INSPECT_RESULT::CONTINUE;
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}
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/**
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* Return the class name.
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*/
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virtual wxString GetClass() const = 0;
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/**
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* Return a translated description of the type for this EDA_ITEM for display in user facing
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* messages.
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*/
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wxString GetTypeDesc() const;
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/**
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* Return a user-visible description string of this item. This description is used in
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* disambiguation menus, the message panel, ERC/DRC reports, etc.
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*
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* The default version of this function raises an assertion in the debug mode and
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* returns a string to indicate that it was not overridden to provide the object
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* specific text.
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*
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* @return The menu text string.
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*/
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virtual wxString GetItemDescription( UNITS_PROVIDER* aUnitsProvider ) const;
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/**
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* Return a pointer to an image to be used in menus.
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*
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* The default version returns the right arrow image. Override this function to provide
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* object specific menu images.
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*
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* @return The menu image associated with the item.
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*/
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virtual BITMAPS GetMenuImage() const;
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/**
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* Compare the item against the search criteria in \a aSearchData.
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*
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* The base class returns false since many of the objects derived from EDA_ITEM
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* do not have any text to search.
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*
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* @param aSearchData A reference to a wxFindReplaceData object containing the
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* search criteria.
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* @param aAuxData A pointer to optional data required for the search or NULL if not used.
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* @return True if the item's text matches the search criteria in \a aSearchData.
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*/
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virtual bool Matches( const EDA_SEARCH_DATA& aSearchData, void* aAuxData ) const
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{
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return false;
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}
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/**
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* Perform a text replace on \a aText using the find and replace criteria in
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* \a aSearchData on items that support text find and replace.
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*
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* @param aSearchData A reference to a wxFindReplaceData object containing the
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* search and replace criteria.
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* @param aText A reference to a wxString object containing the text to be replaced.
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* @return True if \a aText was modified, otherwise false.
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*/
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static bool Replace( const EDA_SEARCH_DATA& aSearchData, wxString& aText );
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/**
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* Perform a text replace using the find and replace criteria in \a aSearchData
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* on items that support text find and replace.
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*
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* This function must be overridden for items that support text replace.
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*
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* @param aSearchData A reference to a wxFindReplaceData object containing the search and
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* replace criteria.
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* @param aAuxData A pointer to optional data required for the search or NULL if not used.
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* @return True if the item text was modified, otherwise false.
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*/
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virtual bool Replace( const EDA_SEARCH_DATA& aSearchData, void* aAuxData = nullptr )
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{
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return false;
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}
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/**
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* Override this method in any derived object that supports test find and replace.
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*
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* @return True if the item has replaceable text that can be modified using
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* the find and replace dialog.
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*/
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virtual bool IsReplaceable() const { return false; }
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/**
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* Test if another item is less than this object.
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*
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* @param aItem - Item to compare against.
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* @return - True if \a aItem is less than the item.
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*/
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bool operator<( const EDA_ITEM& aItem ) const;
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/**
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* Helper function to be used by the C++ STL sort algorithm for sorting a STL
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* container of #EDA_ITEM pointers.
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*
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* @param aLeft The left hand item to compare.
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* @param aRight The right hand item to compare.
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* @return True if \a aLeft is less than \a aRight.
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*/
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static bool Sort( const EDA_ITEM* aLeft, const EDA_ITEM* aRight ) { return *aLeft < *aRight; }
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/**
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* Assign the members of \a aItem to another object.
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*/
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EDA_ITEM& operator=( const EDA_ITEM& aItem );
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virtual const BOX2I ViewBBox() const override;
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virtual void ViewGetLayers( int aLayers[], int& aCount ) const override;
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#if defined(DEBUG)
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/**
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* Output the object tree, currently for debugging only.
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*
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* This is pure virtual so compiler warns if somebody mucks up a derived declaration.
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*
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* @param nestLevel An aid to prettier tree indenting, and is the level
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* of nesting of this object within the overall tree.
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* @param os The ostream& to output to.
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*/
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virtual void Show( int nestLevel, std::ostream& os ) const = 0;
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void ShowDummy( std::ostream& os ) const; ///< call this if you are a lazy developer
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/**
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* Output nested space for pretty indenting.
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*
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* @param nestLevel The nest count.
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* @param os The ostream&, where to output
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* @return The std::ostream& for continuation.
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**/
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static std::ostream& NestedSpace( int nestLevel, std::ostream& os );
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#endif
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protected:
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EDA_ITEM( EDA_ITEM* parent, KICAD_T idType );
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EDA_ITEM( KICAD_T idType );
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EDA_ITEM( const EDA_ITEM& base );
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/**
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* Compare \a aText against search criteria in \a aSearchData.
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*
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* This is a helper function for simplify derived class logic.
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*
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* @param aText A reference to a wxString object containing the string to test.
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* @param aSearchData The criteria to search against.
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* @return True if \a aText matches the search criteria in \a aSearchData.
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*/
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bool Matches( const wxString& aText, const EDA_SEARCH_DATA& aSearchData ) const;
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public:
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const KIID m_Uuid;
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protected:
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EDA_ITEM* m_parent; ///< Linked list: Link (parent struct)
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bool m_forceVisible;
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EDA_ITEM_FLAGS m_flags;
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private:
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/**
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* Run time identification, _keep private_ so it can never be changed after a ctor
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* sets it. See comment near SetType() regarding virtual functions.
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*/
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KICAD_T m_structType;
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};
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/**
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* Provide cloning capabilities for all Boost pointer containers of #EDA_ITEM pointers.
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*
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* @param aItem EDA_ITEM to clone.
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* @return Clone of \a aItem.
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*/
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inline EDA_ITEM* new_clone( const EDA_ITEM& aItem ) { return aItem.Clone(); }
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/**
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* Define list of drawing items for screens.
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*
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* The standard C++ container was chosen so the pointer can be removed from a list without
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* it being destroyed.
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*/
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typedef std::vector< EDA_ITEM* > EDA_ITEMS;
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#endif // EDA_ITEM_H
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