kicad/include/class_board_item.h

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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) 1992-2011 KiCad Developers, see AUTHORS.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 class_board_item.h
* @brief Classes BOARD_ITEM and BOARD_CONNECTED_ITEM.
*/
#ifndef BOARD_ITEM_STRUCT_H
#define BOARD_ITEM_STRUCT_H
#include <base_struct.h>
#include <gr_basic.h>
#include <layers_id_colors_and_visibility.h>
/// Abbrevation for fomatting internal units to a string.
#define FMT_IU BOARD_ITEM::FormatInternalUnits
#define FMT_ANGLE BOARD_ITEM::FormatAngle
class BOARD;
class EDA_DRAW_PANEL;
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/**
* Enum STROKE_T
* is the set of shapes for segments (graphic segments and tracks) which are often
* in the .m_Shape member
*/
enum STROKE_T
{
S_SEGMENT = 0, ///< usual segment : line with rounded ends
S_RECT, ///< segment with non rounded ends
S_ARC, ///< Arcs (with rounded ends)
S_CIRCLE, ///< ring
S_POLYGON, ///< polygon (not yet used for tracks, but could be in microwave apps)
S_CURVE, ///< Bezier Curve
S_LAST ///< last value for this list
};
/**
* Class BOARD_ITEM
* is a base class for any item which can be embedded within the BOARD
* container class, and therefore instances of derived classes should only be
* found in Pcbnew or other programs that use class BOARD and its contents.
* The corresponding class in Eeschema is SCH_ITEM.
*/
class BOARD_ITEM : public EDA_ITEM
{
// These are made private here so they may not be used.
// Instead everything derived from BOARD_ITEM is handled via DLIST<>'s
// use of DHEAD's member functions.
void SetNext( EDA_ITEM* aNext ) { Pnext = aNext; }
void SetBack( EDA_ITEM* aBack ) { Pback = aBack; }
protected:
LAYER_ID m_Layer;
static int getTrailingInt( wxString aStr );
static int getNextNumberInSequence( std::set<int> aSeq, bool aFillSequenceGaps );
public:
BOARD_ITEM( BOARD_ITEM* aParent, KICAD_T idtype ) :
EDA_ITEM( aParent, idtype ), m_Layer( F_Cu )
{
}
// Do not create a copy constructor & operator=.
// The ones generated by the compiler are adequate.
virtual const wxPoint& GetPosition() const = 0;
/**
* Function GetCenter()
*
* This defaults to the same point as returned by GetPosition(), unless
* overridden
*
* @return centre point of the item
*/
virtual const wxPoint GetCenter() const { return GetPosition(); }
virtual void SetPosition( const wxPoint& aPos ) = 0;
/**
* Function IsConnected()
* Returns information if the object is derived from BOARD_CONNECTED_ITEM.
* @return True if the object is of BOARD_CONNECTED_ITEM type, false otherwise.
*/
virtual bool IsConnected() const
{
return false;
}
/**
* A value of wxPoint(0,0) which can be passed to the Draw() functions.
*/
static wxPoint ZeroOffset;
BOARD_ITEM* Next() const { return static_cast<BOARD_ITEM*>( Pnext ); }
BOARD_ITEM* Back() const { return static_cast<BOARD_ITEM*>( Pback ); }
BOARD_ITEM* GetParent() const { return (BOARD_ITEM*) m_Parent; }
/**
* Function GetLayer
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* returns the primary layer this item is on.
*/
LAYER_ID GetLayer() const { return m_Layer; }
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/**
* Function GetLayerSet
* returns a "layer mask", which is a bitmap of all layers on which the
* TRACK segment or VIA physically resides.
* @return int - a layer mask, see layers_id_colors_visibility.h.
*/
virtual LSET GetLayerSet() const { return LSET( m_Layer ); }
/**
* Function SetLayer
* sets the layer this item is on.
* @param aLayer The layer number.
* is virtual because some items (in fact: class DIMENSION)
* have a slightly different initialization
*/
virtual void SetLayer( LAYER_ID aLayer )
{
// trap any invalid layers, then go find the caller and fix it.
// wxASSERT( unsigned( aLayer ) < unsigned( NB_PCB_LAYERS ) );
m_Layer = aLayer;
}
/**
* Function Draw
* BOARD_ITEMs have their own color information.
*/
virtual void Draw( EDA_DRAW_PANEL* panel, wxDC* DC,
GR_DRAWMODE aDrawMode, const wxPoint& offset = ZeroOffset ) = 0;
/**
* Swap data between aItem and aImage.
* aItem and aImage should have the same type
* Used in undo redo command to swap values between an item and its copy
* Only values like layer, size .. which are modified by edition are swapped,
* not the pointers like
* Pnext and Pback because aItem is not changed in the linked list
* @param aImage = the item image which contains data to swap
*/
void SwapData( BOARD_ITEM* aImage );
/**
* Function IsOnLayer
* tests to see if this object is on the given layer. Is virtual so
* objects like D_PAD, which reside on multiple layers can do their own
* form of testing.
* @param aLayer The layer to test for.
* @return bool - true if on given layer, else false.
*/
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virtual bool IsOnLayer( LAYER_ID aLayer ) const
{
return m_Layer == aLayer;
}
/**
* Function IsTrack
* tests to see if this object is a track or via (or microvia).
* form of testing.
* @return bool - true if a track or via, else false.
*/
bool IsTrack() const
{
return ( Type() == PCB_TRACE_T ) || ( Type() == PCB_VIA_T );
}
/**
* Function IsLocked
* @return bool - true if the object is locked, else false
*/
virtual bool IsLocked() const
{
// only MODULEs & TRACKs can be locked at this time.
return false;
}
/**
* Function SetLocked
* modifies 'lock' status for of the item.
*/
virtual void SetLocked( bool aLocked )
{
// only MODULEs & TRACKs can be locked at this time.
}
/**
* Function UnLink
* detaches this object from its owner. This base class implementation
* should work for all derived classes which are held in a DLIST<>.
*/
virtual void UnLink();
/**
* Function DeleteStructure
* deletes this object after UnLink()ing it from its owner if it has one.
*/
void DeleteStructure()
{
if( GetList() != NULL )
UnLink();
delete this;
}
/**
* Function ShowShape
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* converts the enum STROKE_T integer value to a wxString.
*/
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static wxString ShowShape( STROKE_T aShape );
// Some geometric transforms, that must be rewritten for derived classes
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/**
* Function Move
* move this object.
* @param aMoveVector - the move vector for this object.
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*/
virtual void Move( const wxPoint& aMoveVector )
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{
wxMessageBox( wxT( "virtual BOARD_ITEM::Move used, should not occur" ), GetClass() );
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}
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/**
* Function Rotate
* Rotate this object.
* @param aRotCentre - the rotation point.
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* @param aAngle - the rotation angle in 0.1 degree.
*/
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virtual void Rotate( const wxPoint& aRotCentre, double aAngle )
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{
wxMessageBox( wxT( "virtual BOARD_ITEM::Rotate used, should not occur" ), GetClass() );
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}
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/**
* Function Flip
* Flip this object, i.e. change the board side for this object
* @param aCentre - the rotation point.
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*/
virtual void Flip( const wxPoint& aCentre )
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{
wxMessageBox( wxT( "virtual BOARD_ITEM::Flip used, should not occur" ), GetClass() );
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}
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/**
* Function GetBoard
* returns the BOARD in which this BOARD_ITEM resides, or NULL if none.
*/
virtual BOARD* GetBoard() const;
/**
* Function GetLayerName
* returns the name of the PCB layer on which the item resides.
*
* @return wxString containing the layer name associated with this item.
*/
wxString GetLayerName() const;
virtual bool HitTest( const wxPoint& aPosition ) const
{
return EDA_ITEM::HitTest( aPosition );
}
/**
* Function HitTest
* tests if the \a aRect intersects or contains this object (depending on \a aContained).
*
* @param aRect A reference to an EDA_RECT object containg the area to test.
* @param aContained Test if \a aRect contains this object completly.
* @param aAccuracy Increase the item bounding box by this amount.
* @return bool - True if \a aRect contains this object completly or if \a aRect intersects
* the object and \a aContained is False, otherwise false.
*/
virtual bool HitTest( const EDA_RECT& aRect, bool aContained = true, int aAccuracy = 0) const
{
return false; // derived classes should override this function
}
/**
* Function FormatInternalUnits
* converts \a aValue from board internal units to a string appropriate for writing to file.
*
* @note Internal units for board items can be either deci-mils or nanometers depending
* on how KiCad is build.
* @param aValue A coordinate value to convert.
* @return A std::string object containing the converted value.
*/
static std::string FormatInternalUnits( int aValue );
/**
* Function FormatAngle
* converts \a aAngle from board units to a string appropriate for writing to file.
*
* @note Internal angles for board items can be either degrees or tenths of degree
* on how KiCad is built.
* @param aAngle A angle value to convert.
* @return A std::string object containing the converted angle.
*/
static std::string FormatAngle( double aAngle );
static std::string FormatInternalUnits( const wxPoint& aPoint );
static std::string FormatInternalUnits( const wxSize& aSize );
Introduction of Graphics Abstraction Layer based rendering for pcbnew. New classes: - VIEW - represents view that is seen by user, takes care of layer ordering & visibility and how it is displayed (which location, how much zoomed, etc.) - VIEW_ITEM - Base class for every item that can be displayed on VIEW (the biggest change is that now it may be necessary to override ViewBBox & ViewGetLayers method for derived classes). - EDA_DRAW_PANEL_GAL - Inherits after EDA_DRAW_PANEL, displays VIEW output, right now it is not editable (in opposite to usual EDA_DRAW_PANEL). - GAL/OPENGL_GAL/CAIRO_GAL - Base Graphics Abstraction Layer class + two different flavours (Cairo is not fully supported yet), that offers methods to draw primitives using different libraries. - WX_VIEW_CONTROLS - Controller for VIEW, handles user events, allows zooming, panning, etc. - PAINTER/PCB_PAINTER - Classes that uses GAL interface to draw items (as you may have already guessed - PCB_PAINTER is a class for drawing PCB specific object, PAINTER is an abstract class). Its methods are invoked by VIEW, when an item has to be drawn. To display a new type of item - you need to implement draw(ITEM_TYPE*) method that draws it using GAL methods. - STROKE_FONT - Implements stroke font drawing using GAL methods. Most important changes to Kicad original code: * EDA_ITEM now inherits from VIEW_ITEM, which is a base class for all drawable objects. * EDA_DRAW_FRAME contains both usual EDA_DRAW_PANEL and new EDA_DRAW_PANEL_GAL, that can be switched anytime. * There are some new layers for displaying multilayer pads, vias & pads holes (these are not shown yet on the right sidebar in pcbnew) * Display order of layers is different than in previous versions (if you are curious - you may check m_galLayerOrder@pcbnew/basepcbframe.cpp). Preserving usual order would result in not very natural display, such as showing silkscreen texts on the bottom. * Introduced new hotkey (Alt+F12) and new menu option (View->Switch canvas) for switching canvas during runtime. * Some of classes (mostly derived from BOARD_ITEM) now includes ViewBBox & ViewGetLayers methods. * Removed tools/class_painter.h, as now it is extended and included in source code. Build changes: * GAL-based rendering option is turned on by a new compilation CMake option KICAD_GAL. * When compiling with CMake option KICAD_GAL=ON, GLEW and Cairo libraries are required. * GAL-related code is compiled into a static library (common/libgal). * Build with KICAD_GAL=OFF should not need any new libraries and should come out as a standard version of Kicad Currently most of items in pcbnew can be displayed using OpenGL (to be done are DIMENSIONS and MARKERS). More details about GAL can be found in: http://www.ohwr.org/attachments/1884/view-spec.pdf
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/// @copydoc VIEW_ITEM::ViewGetLayers()
virtual void ViewGetLayers( int aLayers[], int& aCount ) const;
};
#endif /* BOARD_ITEM_STRUCT_H */