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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 2008-2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 2004-2011 KiCad Developers, see change_log.txt for contributors.
*
* 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
*/
/**
* @file base_struct.h
* @brief Basic classes for most KiCad items.
*/
#ifndef BASE_STRUCT_H_
#define BASE_STRUCT_H_
#include <colors.h>
#include <bitmaps.h>
#include <richio.h>
#include <boost/ptr_container/ptr_vector.hpp>
#if defined(DEBUG)
#include <iostream> // needed for Show()
extern std::ostream& operator <<( std::ostream& out, const wxSize& size );
extern std::ostream& operator <<( std::ostream& out, const wxPoint& pt );
#endif
/**
* Enum KICAD_T
* is the set of class identification values, stored in EDA_ITEM::m_StructType
*/
enum KICAD_T {
NOT_USED = -1, ///< the 3d code uses this value
EOT = 0, ///< search types array terminator (End Of Types)
TYPE_NOT_INIT = 0,
PCB_T,
SCREEN_T, ///< not really an item, used to identify a screen
// Items in pcb
PCB_MODULE_T, ///< class MODULE, a footprint
PCB_PAD_T, ///< class D_PAD, a pad in a footprint
PCB_LINE_T, ///< class DRAWSEGMENT, a segment not on copper layers
PCB_TEXT_T, ///< class TEXTE_PCB, text on a layer
PCB_MODULE_TEXT_T, ///< class TEXTE_MODULE, text in a footprint
PCB_MODULE_EDGE_T, ///< class EDGE_MODULE, a footprint edge
PCB_TRACE_T, ///< class TRACKE, a track segment (segment on a copper layer)
PCB_VIA_T, ///< class SEGVIA, a via (like a track segment on a copper layer)
PCB_ZONE_T, ///< class SEGZONE, a segment used to fill a zone area (segment on a
///< copper layer)
PCB_MARKER_T, ///< class MARKER_PCB, a marker used to show something
PCB_DIMENSION_T, ///< class DIMENSION, a dimension (graphic item)
PCB_TARGET_T, ///< class PCB_TARGET, a target (graphic item)
PCB_ZONE_AREA_T, ///< class ZONE_CONTAINER, a zone area
PCB_ITEM_LIST_T, ///< class BOARD_ITEM_LIST, a list of board items
// Schematic draw Items. The order of these items effects the sort order.
// It is currently ordered to mimic the old Eeschema locate behavior where
// the smallest item is the selected item.
SCH_MARKER_T,
SCH_JUNCTION_T,
SCH_NO_CONNECT_T,
SCH_BUS_ENTRY_T,
SCH_LINE_T,
SCH_POLYLINE_T,
SCH_BITMAP_T,
SCH_TEXT_T,
SCH_LABEL_T,
SCH_GLOBAL_LABEL_T,
SCH_HIERARCHICAL_LABEL_T,
SCH_FIELD_T,
SCH_COMPONENT_T,
SCH_SHEET_PIN_T,
SCH_SHEET_T,
// General
SCH_SCREEN_T,
/*
* Draw items in library component.
*
* The order of these items effects the sort order for items inside the
* "DRAW/ENDDRAW" section of the component definition in a library file.
* If you add a new draw item, type, please make sure you add it so the
* sort order is logical.
*/
LIB_COMPONENT_T,
LIB_ALIAS_T,
LIB_ARC_T,
LIB_CIRCLE_T,
LIB_TEXT_T,
LIB_RECTANGLE_T,
LIB_POLYLINE_T,
LIB_BEZIER_T,
LIB_PIN_T,
/*
* Fields are not saved inside the "DRAW/ENDDRAW". Add new draw item
* types before this line.
*/
LIB_FIELD_T,
/*
* For GerbView: items type:
*/
TYPE_GERBER_DRAW_ITEM,
// End value
MAX_STRUCT_TYPE_ID
};
/**
* Enum FILL_T
* is the set of fill types used in plotting or drawing enclosed areas.
*/
enum FILL_T {
NO_FILL, // Poly, Square, Circle, Arc = option No Fill
FILLED_SHAPE, /* Poly, Square, Circle, Arc = option Fill
* with current color ("Solid shape") */
FILLED_WITH_BG_BODYCOLOR /* Poly, Square, Circle, Arc = option Fill
* with background body color, translucent
* (texts inside this shape can be seen)
* not filled in B&W mode when plotting or
* printing */
};
enum SEARCH_RESULT {
SEARCH_QUIT,
SEARCH_CONTINUE
};
class wxFindReplaceData;
class EDA_ITEM;
class EDA_DRAW_FRAME;
class EDA_RECT;
class EDA_DRAW_PANEL;
class DHEAD;
/**
* Class INSPECTOR
* is an abstract class that is used to inspect and possibly collect the
* (search) results of Iterating over a list or tree of KICAD_T objects.
* Extend from this class and implement the Inspect function and provide for
* a way for the extension to collect the results of the search/scan data and
* provide them to the caller.
*/
class INSPECTOR
{
public:
virtual ~INSPECTOR()
{
}
/**
* Function Inspect
* is the examining function within the INSPECTOR which is passed to the
* EDA_ITEM::Iterate() function. It is used primarily for searching, but
* not limited to that. It can also collect or modify the scanned objects.
*
* @param aItem An EDA_ITEM to examine.
* @param aTestData is arbitrary data needed by the inspector to determine
* if the EDA_ITEM under test meets its match criteria.
* @return A #SEARCH_RESULT type #SEARCH_QUIT if the iterator function is to
* stop the scan, else #SEARCH_CONTINUE;
*/
SEARCH_RESULT virtual Inspect( EDA_ITEM* aItem, const void* aTestData ) = 0;
};
/**
* Class EDA_RECT
* handles the component boundary box.
* This class is similar to wxRect, but some wxRect functions are very curious,
* and are working only if dimensions are >= 0 (not always the case in KiCad)
* and also KiCad needs some specific method.
* so I prefer this more suitable class
*/
class EDA_RECT
{
private:
wxPoint m_Pos; // Rectangle Origin
wxSize m_Size; // Rectangle Size
public:
EDA_RECT() { };
EDA_RECT( const wxPoint& aPos, const wxSize& aSize ) :
m_Pos( aPos ),
m_Size( aSize )
{ }
wxPoint Centre()
{
return wxPoint( m_Pos.x + ( m_Size.x >> 1 ),
m_Pos.y + ( m_Size.y >> 1 ) );
}
/**
* Function Move
* moves the rectangle by the \a aMoveVector.
* @param aMoveVector A wxPoint that is the value to move this rectangle
*/
void Move( const wxPoint& aMoveVector );
/**
* Function Normalize
* ensures that the height ant width are positive.
*/
void Normalize();
/**
* Function Contains
* @param aPoint = the wxPoint to test
* @return true if aPoint is inside the boundary box. A point on a edge is seen as inside
*/
bool Contains( const wxPoint& aPoint ) const;
/**
* Function Contains
* @param x = the x coordinate of the point to test
* @param y = the x coordinate of the point to test
* @return true if point is inside the boundary box. A point on a edge is seen as inside
*/
bool Contains( int x, int y ) const { return Contains( wxPoint( x, y ) ); }
/**
* Function Contains
* @param aRect = the EDA_RECT to test
* @return true if aRect is Contained. A common edge is seen as contained
*/
bool Contains( const EDA_RECT& aRect ) const;
const wxSize& GetSize() const { return m_Size; }
int GetX() const { return m_Pos.x; }
int GetY() const { return m_Pos.y; }
const wxPoint& GetOrigin() const { return m_Pos; }
const wxPoint& GetPosition() const { return m_Pos; }
const wxPoint GetEnd() const { return wxPoint( GetRight(), GetBottom() ); }
int GetWidth() const { return m_Size.x; }
int GetHeight() const { return m_Size.y; }
int GetRight() const { return m_Pos.x + m_Size.x; }
int GetBottom() const { return m_Pos.y + m_Size.y; }
void SetOrigin( const wxPoint& pos ) { m_Pos = pos; }
void SetOrigin( int x, int y ) { m_Pos.x = x; m_Pos.y = y; }
void SetSize( const wxSize& size ) { m_Size = size; }
void SetSize( int w, int h ) { m_Size.x = w; m_Size.y = h; }
void Offset( int dx, int dy ) { m_Pos.x += dx; m_Pos.y += dy; }
void Offset( const wxPoint& offset ) { m_Pos.x += offset.x; m_Pos.y +=
offset.y; }
void SetX( int val ) { m_Pos.x = val; }
void SetY( int val ) { m_Pos.y = val; }
void SetWidth( int val ) { m_Size.x = val; }
void SetHeight( int val ) { m_Size.y = val; }
void SetEnd( int x, int y ) { SetEnd( wxPoint( x, y ) ); }
void SetEnd( const wxPoint& pos )
{
m_Size.x = pos.x - m_Pos.x; m_Size.y = pos.y - m_Pos.y;
}
/**
* Function Intersects
* @return bool - true if the argument rectangle intersects this rectangle.
* (i.e. if the 2 rectangles have at least a common point)
*/
bool Intersects( const EDA_RECT& aRect ) const;
/**
* Function operator(wxRect)
* overloads the cast operator to return a wxRect
* wxRect does not accept negative values for size, so ensure the
* wxRect size is always >= 0
*/
operator wxRect() const
{
EDA_RECT rect( m_Pos, m_Size );
rect.Normalize();
return wxRect( rect.m_Pos, rect.m_Size );
}
/**
* Function Inflate
* inflates the rectangle horizontally by \a dx and vertically by \a dy. If \a dx
* and/or \a dy is negative the rectangle is deflated.
*/
EDA_RECT& Inflate( wxCoord dx, wxCoord dy );
/**
* Function Inflate
* inflates the rectangle horizontally and vertically by \a aDelta. If \a aDelta
* is negative the rectangle is deflated.
*/
EDA_RECT& Inflate( int aDelta );
/**
* Function Merge
* modifies the position and size of the rectangle in order to contain \a aRect. It is
* mainly used to calculate bounding boxes.
* @param aRect The rectangle to merge with this rectangle.
*/
void Merge( const EDA_RECT& aRect );
/**
* Function Merge
* modifies the position and size of the rectangle in order to contain the given point.
* @param aPoint The point to merge with the rectangle.
*/
void Merge( const wxPoint& aPoint );
/**
* Function GetArea
* returns the area of the rectangle.
* @return The area of the rectangle.
*/
double GetArea() const;
};
// These define are used for the .m_Flags and .m_UndoRedoStatus member of the
// class EDA_ITEM
#define IS_CHANGED (1 << 0) ///< Item was edited, and modified
#define IS_LINKED (1 << 1) ///< Used in calculation to mark linked items (temporary use)
#define IN_EDIT (1 << 2) ///< Item currently edited
#define IS_MOVED (1 << 3) ///< Item being moved
#define IS_NEW (1 << 4) ///< New item, just created
#define IS_RESIZED (1 << 5) ///< Item being resized
#define IS_DRAGGED (1 << 6) ///< Item being dragged
#define IS_DELETED (1 << 7)
#define IS_WIRE_IMAGE (1 << 8)
#define STARTPOINT (1 << 9)
#define ENDPOINT (1 << 10)
#define SELECTED (1 << 11)
#define SELECTEDNODE (1 << 12) ///< flag indicating that the structure has already selected
#define STRUCT_DELETED (1 << 13) ///< flag indication structures to be erased
#define CANDIDATE (1 << 14) ///< flag indicating that the structure is connected
#define SKIP_STRUCT (1 << 15) ///< flag indicating that the structure should be ignored
#define DO_NOT_DRAW (1 << 16) ///< Used to disable draw function
#define IS_CANCELLED (1 << 17) ///< flag set when edit dialogs are canceled when editing a
///< new object
#define TRACK_LOCKED (1 << 18) ///< Pcbnew: track locked: protected from global deletion
#define TRACK_AR (1 << 19) ///< Pcbnew: autorouted track
#define FLAG1 (1 << 20) ///< Pcbnew: flag used in local computations
#define FLAG0 (1 << 21) ///< Pcbnew: flag used in local computations
#define BEGIN_ONPAD (1 << 22) ///< Pcbnew: flag set for track segment starting on a pad
#define END_ONPAD (1 << 23) ///< Pcbnew: flag set for track segment ending on a pad
#define BUSY (1 << 24) ///< Pcbnew: flag indicating that the structure has
///< already been edited, in some functions
#define EDA_ITEM_ALL_FLAGS -1
/**
* Class EDA_ITEM
* is a base class for most all the KiCad significant classes, used in
* schematics and boards.
*/
class EDA_ITEM
{
private:
/**
* Run time identification, _keep private_ so it can never be changed after
* a constructor sets it. See comment near SetType() regarding virtual
* functions.
*/
KICAD_T m_StructType;
int m_Status;
protected:
EDA_ITEM* Pnext; ///< next in linked list
EDA_ITEM* Pback; ///< previous in linked list
DHEAD* m_List; ///< which DLIST I am on.
EDA_ITEM* m_Parent; /* Linked list: Link (parent struct) */
EDA_ITEM* m_Son; /* Linked list: Link (son struct) */
time_t m_TimeStamp; ///< Time stamp used for logical links
/// Set to true to override the visibility setting of the item.
bool m_forceVisible;
/// Flag bits for editing and other uses.
int m_Flags;
// Link to an copy of the item use to save the item's state for undo/redo feature.
EDA_ITEM* m_Image;
private:
void InitVars();
public:
EDA_ITEM( EDA_ITEM* parent, KICAD_T idType );
EDA_ITEM( KICAD_T idType );
EDA_ITEM( const EDA_ITEM& base );
virtual ~EDA_ITEM() { };
/**
* Function Type
* returns the type of object. This attribute should never be changed
* after a constructor sets it, so there is no public "setter" method.
* @return KICAD_T - the type of object.
*/
KICAD_T Type() const { return m_StructType; }
void SetTimeStamp( time_t aNewTimeStamp ) { m_TimeStamp = aNewTimeStamp; }
time_t GetTimeStamp() const { return m_TimeStamp; }
EDA_ITEM* Next() const { return (EDA_ITEM*) Pnext; }
EDA_ITEM* Back() const { return (EDA_ITEM*) Pback; }
EDA_ITEM* GetParent() const { return m_Parent; }
EDA_ITEM* GetSon() const { return m_Son; }
DHEAD* GetList() const { return m_List; }
void SetNext( EDA_ITEM* aNext ) { Pnext = aNext; }
void SetBack( EDA_ITEM* aBack ) { Pback = aBack; }
void SetParent( EDA_ITEM* aParent ) { m_Parent = aParent; }
void SetSon( EDA_ITEM* aSon ) { m_Son = aSon; }
void SetList( DHEAD* aList ) { m_List = aList; }
inline bool IsNew() const { return m_Flags & IS_NEW; }
inline bool IsModified() const { return m_Flags & IS_CHANGED; }
inline bool IsMoving() const { return m_Flags & IS_MOVED; }
inline bool IsDragging() const { return m_Flags & IS_DRAGGED; }
inline bool IsSelected() const { return m_Flags & SELECTED; }
inline bool IsResized() const { return m_Flags & IS_RESIZED; }
void SetModified();
int GetState( int type ) const
{
return m_Status & type;
}
void SetState( int type, int state )
{
if( state )
m_Status |= type; // state = ON or OFF
else
m_Status &= ~type;
}
int GetStatus() const { return m_Status; }
void SetStatus( int aStatus ) { m_Status = aStatus; }
void SetFlags( int aMask ) { m_Flags |= aMask; }
void ClearFlags( int aMask = EDA_ITEM_ALL_FLAGS ) { m_Flags &= ~aMask; }
int GetFlags() const { return m_Flags; }
void SetImage( EDA_ITEM* aItem ) { m_Image = aItem; }
/**
* Function SetForceVisible
* is used to set and cleag force visible flag used to force the item to be drawn
* even if it's draw attribute is set to not visible.
*
* @param aEnable True forces the item to be drawn. False uses the item's visibility
* setting to determine if the item is to be drawn.
*/
void SetForceVisible( bool aEnable ) { m_forceVisible = aEnable; }
/**
* Function DisplayInfo
* has knowledge about the frame and how and where to put status
* information about this object into the frame's message panel.
* @param frame A EDA_DRAW_FRAME in which to print status information.
*/
virtual void DisplayInfo( EDA_DRAW_FRAME* frame )
{
// derived classes may implement this
}
/**
* Function HitTest
* tests if \a aPosition is contained within or on the bounding area of an item.
*
* @note This function cannot be const because some of the derive objects perform
* intermediate calculations which change object members. Make sure derived
* objects do not declare this as const.
*
* @param aPosition A reference to a wxPoint object containing the coordinates to test.
* @return True if \a aPosition is within or on the item bounding area.
*/
virtual bool HitTest( const wxPoint& aPosition )
{
return false; // derived classes should override this function
}
/**
* Function HitTest
* tests if the \a aRect intersects this object.
* For now, an ending point must be inside \a aRect.
*
* @param aRect A reference to an EDA_RECT object containg the area to test.
* @return True if \a aRect intersects the object, otherwise false.
*/
virtual bool HitTest( const EDA_RECT& aRect ) const
{
return false; // derived classes should override this function
}
/**
* Function GetBoundingBox
* returns the orthogonal, bounding box of this object for display
* purposes.
* This box should be an enclosing perimeter for visible components of this
* object, and the units should be in the pcb or schematic coordinate
* system.
* It is OK to overestimate the size by a few counts.
*/
virtual EDA_RECT GetBoundingBox() const
{
#if defined(DEBUG)
printf( "Missing GetBoundingBox()\n" );
Show( 0, std::cout ); // tell me which classes still need GetBoundingBox support
#endif
// return a zero-sized box per default. derived classes should override
// this
return EDA_RECT( wxPoint( 0, 0 ), wxSize( 0, 0 ) );
}
/**
* Function Clone
* creates a duplicate of this item with linked list members set to NULL.
*
* The default version will return NULL in release builds and likely crash the
* program. In debug builds, a warning message indicating the derived class
* has not implemented cloning. This really should be a pure virtual function.
* Due to the fact that there are so many objects derived from EDA_ITEM, the
* decision was made to return NULL until all the objects derived from EDA_ITEM
* implement cloning. Once that happens, this function should be made pure.
*
* @return A clone of the item.
*/
virtual EDA_ITEM* Clone() const; // should not be inline, to save the ~ 6 bytes per call site.
/**
* Function IterateForward
* walks through the object tree calling the inspector() on each object
* type requested in scanTypes.
*
* @param listStart The first in a list of EDA_ITEMs to iterate over.
* @param inspector Is an INSPECTOR to call on each object that is one of
* the requested scanTypes.
* @param testData Is an aid to testFunc, and should be sufficient to allow
* it to fully determine if an item meets the match criteria,
* but it may also be used to collect output.
* @param scanTypes A KICAD_T array that is EOT terminated, and provides both
* the order and interest level of of the types of objects to
* be iterated over.
* @return SEARCH_RESULT SEARCH_QUIT if the called INSPECTOR returned
* SEARCH_QUIT, else SCAN_CONTINUE;
*/
static SEARCH_RESULT IterateForward( EDA_ITEM* listStart,
INSPECTOR* inspector,
const void* testData,
const KICAD_T scanTypes[] );
/**
* Function Visit
* may be re-implemented for each derived class in order to handle
* all the types given by its member data. Implementations should call
* inspector->Inspect() on types in scanTypes[], and may use
* IterateForward()
* to do so on lists of such data.
* @param inspector An INSPECTOR instance to use in the inspection.
* @param testData Arbitrary data used by the inspector.
* @param scanTypes Which KICAD_T types are of interest and the order
* is significant too, terminated by EOT.
* @return SEARCH_RESULT SEARCH_QUIT if the Iterator is to stop the scan,
* else SCAN_CONTINUE, and determined by the inspector.
*/
virtual SEARCH_RESULT Visit( INSPECTOR* inspector, const void* testData,
const KICAD_T scanTypes[] );
/**
* Function GetClass
* returns the class name.
* @return wxString
*/
virtual wxString GetClass() const
{
return wxT( "EDA_ITEM" );
}
/**
* Function GetSelectMenuText
* returns the text to display to be used in the selection clarification context menu
* when multiple items are found at the current cursor position. The default version
* of this function raises an assertion in the debug mode and returns a string to
* indicate that it was not overridden to provide the object specific text.
*
* @return The menu text string.
*/
virtual wxString GetSelectMenuText() const;
/**
* Function GetMenuImage
* returns a pointer to an image to be used in menus. The default version returns
* the right arrow image. Override this function to provide object specific menu
* images.
* @return The menu image associated with the item.
*/
virtual BITMAP_DEF GetMenuImage() const { return right_xpm; }
/**
* Function Matches
* compares the item against the search criteria in \a aSearchData.
*
* The base class returns false since many of the objects derived from EDA_ITEM
* do not have any text to search.
*
* @param aSearchData A reference to a wxFindReplaceData object containing the
* search criteria.
* @param aAuxData A pointer to optional data required for the search or NULL
* if not used.
* @param aFindLocation A pointer to a wxPoint object to store the location of
* matched item. The pointer can be NULL if it is not used.
* @return True if the item's text matches the search criteria in \a aSearchData.
*/
virtual bool Matches( wxFindReplaceData& aSearchData, void* aAuxData, wxPoint* aFindLocation )
{
return false;
}
/**
* Function Matches
* compares \a aText against search criteria in \a aSearchData.
*
* @param aText A reference to a wxString object containing the string to test.
* @param aSearchData The criteria to search against.
* @return True if \a aText matches the search criteria in \a aSearchData.
*/
bool Matches( const wxString& aText, wxFindReplaceData& aSearchData );
/**
* Function Replace
* performs a text replace on \a aText using the find and replace criteria in
* \a aSearchData on items that support text find and replace.
*
* @param aSearchData A reference to a wxFindReplaceData object containing the
* search and replace criteria.
* @param aText A reference to a wxString object containing the text to be
* replaced.
* @return True if \a aText was modified, otherwise false.
*/
bool Replace( wxFindReplaceData& aSearchData, wxString& aText );
/**
* Function Replace
* performs a text replace using the find and replace criteria in \a aSearchData
* on items that support text find and replace.
*
* This function must be overridden for items that support text replace.
*
* @param aSearchData A reference to a wxFindReplaceData object containing the
* search and replace criteria.
* @param aAuxData A pointer to optional data required for the search or NULL
* if not used.
* @return True if the item text was modified, otherwise false.
*/
virtual bool Replace( wxFindReplaceData& aSearchData, void* aAuxData = NULL ) { return false; }
/**
* Function IsReplaceable
* <p>
* Override this method in any derived object that supports test find and
* replace.
* </p>
*
* @return True if the item has replaceable text that can be modified using
* the find and replace dialog.
*/
virtual bool IsReplaceable() const { return false; }
/**
* Test if another item is less than this object.
*
* @param aItem - Item to compare against.
* @return - True if \a aItem is less than the item.
*/
bool operator<( const EDA_ITEM& aItem ) const;
/**
* Function Sort
* is a helper function to be used by the C++ STL sort algorithm for sorting a STL
* container of EDA_ITEM pointers.
*
* @param aLeft The left hand item to compare.
* @param aRight The right hand item to compare.
* @return True if \a aLeft is less than \a aRight.
*/
static bool Sort( const EDA_ITEM* aLeft, const EDA_ITEM* aRight ) { return *aLeft < *aRight; }
/**
* Operator assignment
* is used to assign the members of \a aItem to another object.
*
* @warning This is still a work in progress and not ready for prime time. Do not use
* as there is a known issue with wxString buffers.
*/
virtual EDA_ITEM& operator=( const EDA_ITEM& aItem );
#if defined(DEBUG)
/**
* Function Show
* is used to output the object tree, currently for debugging only.
* @param nestLevel An aid to prettier tree indenting, and is the level
* of nesting of this object within the overall tree.
* @param os The ostream& to output to.
*/
virtual void Show( int nestLevel, std::ostream& os ) const = 0;
// pure virtual so compiler warns if somebody mucks up a derived declaration
void ShowDummy( std::ostream& os ) const; ///< call this if you are a lazy developer
/**
* Function NestedSpace
* outputs nested space for pretty indenting.
* @param nestLevel The nest count
* @param os The ostream&, where to output
* @return std::ostream& - for continuation.
**/
static std::ostream& NestedSpace( int nestLevel, std::ostream& os );
#endif
};
/**
* Function new_clone
* provides cloning capabilities for all Boost pointer containers of EDA_ITEM pointers.
*
* @param aItem EDA_ITEM to clone.
* @return Clone of \a aItem.
*/
inline EDA_ITEM* new_clone( const EDA_ITEM& aItem ) { return aItem.Clone(); }
/**
* Define list of drawing items for screens.
*
* The standard C++ container was chosen so the pointer can be removed from a list without
* it being destroyed.
*/
typedef std::vector< EDA_ITEM* > EDA_ITEMS;
#endif // BASE_STRUCT_H_
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