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kicad/pcbnew/import_dxf/dxf2brd_items.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 1992-2013 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
*/
// The DXF reader lib (libdxfrw) comes from LibreCAD project, a 2D CAD program
// libdxfrw can be found on http://sourceforge.net/projects/libdxfrw/
// or (latest sources) on
// https://github.com/LibreCAD/LibreCAD/tree/master/libraries/libdxfrw/src
//
// There is no doc to use it, but have a look to
// https://github.com/LibreCAD/LibreCAD/blob/master/librecad/src/lib/filters/rs_filterdxf.cpp
// and https://github.com/LibreCAD/LibreCAD/blob/master/librecad/src/lib/filters/rs_filterdxf.h
// Each time a dxf entity is read, a "call back" fuction is called
// like void DXF2BRD_CONVERTER::addLine( const DRW_Line& data ) when a line is read.
// this function just add the BOARD entity from dxf parameters (start and end point ...)
#include "libdxfrw.h"
#include "dxf2brd_items.h"
#include <wx/arrstr.h>
#include <wx/regex.h>
#include <trigo.h>
#include <macros.h>
#include <class_board.h>
#include <class_drawsegment.h>
#include <class_pcb_text.h>
#include <convert_from_iu.h>
DXF2BRD_CONVERTER::DXF2BRD_CONVERTER() : DRW_Interface()
{
m_xOffset = 0.0; // X coord offset for conversion (in mm)
m_yOffset = 0.0; // Y coord offset for conversion (in mm)
m_Dfx2mm = 1.0; // The scale factor to convert DXF units to mm
m_version = 0;
m_defaultThickness = 0.1;
m_brdLayer = Dwgs_User;
}
DXF2BRD_CONVERTER::~DXF2BRD_CONVERTER()
{
}
// coordinate conversions from dxf to internal units
int DXF2BRD_CONVERTER::mapX( double aDxfCoordX )
{
return Millimeter2iu( m_xOffset + ( aDxfCoordX * m_Dfx2mm ) );
}
int DXF2BRD_CONVERTER::mapY( double aDxfCoordY )
{
return Millimeter2iu( m_yOffset - ( aDxfCoordY * m_Dfx2mm ) );
}
int DXF2BRD_CONVERTER::mapDim( double aDxfValue )
{
return Millimeter2iu( aDxfValue * m_Dfx2mm );
}
bool DXF2BRD_CONVERTER::ImportDxfFile( const wxString& aFile )
{
dxfRW* dxf = new dxfRW( aFile.ToUTF8() );
bool success = dxf->read( this, true );
delete dxf;
return success;
}
/*
* Implementation of the method which handles layers.
*/
void DXF2BRD_CONVERTER::addLayer( const DRW_Layer& aData )
{
// Not yet useful in Pcbnew.
#if 0
wxString name = wxString::FromUTF8( aData.name.c_str() );
wxLogMessage( name );
#endif
}
/*
* Import line entities.
*/
void DXF2BRD_CONVERTER::addLine( const DRW_Line& aData )
{
DRAWSEGMENT* segm = new DRAWSEGMENT;
segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
wxPoint start( mapX( aData.basePoint.x ), mapY( aData.basePoint.y ) );
segm->SetStart( start );
wxPoint end( mapX( aData.secPoint.x ), mapY( aData.secPoint.y ) );
segm->SetEnd( end );
segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness : aData.thickness ) );
m_newItemsList.push_back( segm );
}
void DXF2BRD_CONVERTER::addPolyline(const DRW_Polyline& aData )
{
// Currently, Pcbnew does not know polylines, for boards.
// So we have to convert a polyline to a set of segments.
// Obviously, the z coordinate is ignored
wxPoint polyline_startpoint;
wxPoint segment_startpoint;
for( unsigned ii = 0; ii < aData.vertlist.size(); ii++ )
{
DRW_Vertex* vertex = aData.vertlist[ii];
if( ii == 0 )
{
segment_startpoint.x = mapX( vertex->basePoint.x );
segment_startpoint.y = mapY( vertex->basePoint.y );
polyline_startpoint = segment_startpoint;
continue;
}
DRAWSEGMENT* segm = new DRAWSEGMENT( NULL );
segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
segm->SetStart( segment_startpoint );
wxPoint segment_endpoint( mapX( vertex->basePoint.x ), mapY( vertex->basePoint.y ) );
segm->SetEnd( segment_endpoint );
segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness
: aData.thickness ) );
m_newItemsList.push_back( segm );
segment_startpoint = segment_endpoint;
}
// Polyline flags bit 0 indicates closed (1) or open (0) polyline
if( aData.flags & 1 )
{
DRAWSEGMENT* closing_segm = new DRAWSEGMENT( NULL );
closing_segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
closing_segm->SetStart( segment_startpoint );
closing_segm->SetEnd( polyline_startpoint );
closing_segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness
: aData.thickness ) );
m_newItemsList.push_back( closing_segm );
}
}
void DXF2BRD_CONVERTER::addLWPolyline(const DRW_LWPolyline& aData )
{
// Currently, Pcbnew does not know polylines, for boards.
// So we have to convert a polyline to a set of segments.
// The import is a simplified import: the width of segment is
// (obviously constant and is the width of the DRW_LWPolyline.
// the variable width of each vertex (when exists) is not used.
wxPoint lwpolyline_startpoint;
wxPoint segment_startpoint;
for( unsigned ii = 0; ii < aData.vertlist.size(); ii++ )
{
DRW_Vertex2D* vertex = aData.vertlist[ii];
if( ii == 0 )
{
segment_startpoint.x = mapX( vertex->x );
segment_startpoint.y = mapY( vertex->y );
lwpolyline_startpoint = segment_startpoint;
continue;
}
DRAWSEGMENT* segm = new DRAWSEGMENT( NULL );
segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
segm->SetStart( segment_startpoint );
wxPoint segment_endpoint( mapX( vertex->x ), mapY( vertex->y ) );
segm->SetEnd( segment_endpoint );
segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness
: aData.thickness ) );
m_newItemsList.push_back( segm );
segment_startpoint = segment_endpoint;
}
// LWPolyline flags bit 0 indicates closed (1) or open (0) polyline
if( aData.flags & 1 )
{
DRAWSEGMENT* closing_segm = new DRAWSEGMENT( NULL );
closing_segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
closing_segm->SetStart( segment_startpoint );
closing_segm->SetEnd( lwpolyline_startpoint );
closing_segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness
: aData.thickness ) );
m_newItemsList.push_back( closing_segm );
}
}
/*
* Import Circle entities.
*/
void DXF2BRD_CONVERTER::addCircle( const DRW_Circle& aData )
{
DRAWSEGMENT* segm = new DRAWSEGMENT;
segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
segm->SetShape( S_CIRCLE );
wxPoint center( mapX( aData.basePoint.x ), mapY( aData.basePoint.y ) );
segm->SetCenter( center );
wxPoint circle_start( mapX( aData.basePoint.x + aData.radious ), mapY( aData.basePoint.y ) );
segm->SetArcStart( circle_start );
segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness : aData.thickness ) );
m_newItemsList.push_back( segm );
}
/*
* Import Arc entities.
*/
void DXF2BRD_CONVERTER::addArc( const DRW_Arc& data )
{
DRAWSEGMENT* segm = new DRAWSEGMENT;
segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
segm->SetShape( S_ARC );
// Init arc centre:
wxPoint center( mapX( data.basePoint.x ), mapY( data.basePoint.y ) );
segm->SetCenter( center );
// Init arc start point
double arcStartx = data.radious;
double arcStarty = 0;
double startangle = data.staangle;
double endangle = data.endangle;
RotatePoint( &arcStartx, &arcStarty, -RAD2DECIDEG( startangle ) );
wxPoint arcStart( mapX( arcStartx + data.basePoint.x ),
mapY( arcStarty + data.basePoint.y ) );
segm->SetArcStart( arcStart );
// calculate arc angle (arcs are CCW, and should be < 0 in Pcbnew)
double angle = -RAD2DECIDEG( endangle - startangle );
if( angle > 0.0 )
angle -= 3600.0;
segm->SetAngle( angle );
segm->SetWidth( mapDim( data.thickness == 0 ? m_defaultThickness : data.thickness ) );
m_newItemsList.push_back( segm );
}
/**
* Import texts (TEXT).
*/
void DXF2BRD_CONVERTER::addText( const DRW_Text& aData )
{
TEXTE_PCB* pcb_text = new TEXTE_PCB( NULL );
pcb_text->SetLayer( ToLAYER_ID( m_brdLayer ) );
wxPoint refPoint( mapX( aData.basePoint.x ), mapY( aData.basePoint.y ) );
wxPoint secPoint( mapX( aData.secPoint.x ), mapY( aData.secPoint.y ) );
if( aData.alignV != 0 || aData.alignH != 0 || aData.alignH == DRW_Text::HMiddle )
{
if( aData.alignH != DRW_Text::HAligned && aData.alignH != DRW_Text::HFit )
{
wxPoint tmp = secPoint;
secPoint = refPoint;
refPoint = tmp;
}
}
switch( aData.alignV )
{
case DRW_Text::VBaseLine:
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
break;
case DRW_Text::VBottom:
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
break;
case DRW_Text::VMiddle:
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
break;
case DRW_Text::VTop:
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_TOP );
break;
}
switch( aData.alignH )
{
case DRW_Text::HLeft:
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
break;
case DRW_Text::HCenter:
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_CENTER );
break;
case DRW_Text::HRight:
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
break;
case DRW_Text::HAligned:
// no equivalent options in text pcb.
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
break;
case DRW_Text::HMiddle:
// no equivalent options in text pcb.
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_CENTER );
break;
case DRW_Text::HFit:
// no equivalent options in text pcb.
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
break;
}
#if 0
wxString sty = wxString::FromUTF8(aData.style.c_str());
sty=sty.ToLower();
if (aData.textgen==2)
{
// Text dir = left to right;
} else if (aData.textgen==4)
{
/ Text dir = top to bottom;
} else
{
}
#endif
wxString text = toNativeString( wxString::FromUTF8( aData.text.c_str() ) );
pcb_text->SetTextPosition( refPoint );
pcb_text->SetOrientation( aData.angle * 10 );
// The 0.8 factor gives a better height/width ratio with our font
pcb_text->SetWidth( mapDim( aData.height * 0.8 ) );
pcb_text->SetHeight( mapDim( aData.height ) );
pcb_text->SetThickness( mapDim( aData.thickness == 0 ? m_defaultThickness : aData.thickness ) );
pcb_text->SetText( text );
m_newItemsList.push_back( pcb_text );
}
/**
* Import multi line texts (MTEXT).
*/
void DXF2BRD_CONVERTER::addMText( const DRW_MText& aData )
{
wxString text = toNativeString( wxString::FromUTF8( aData.text.c_str() ) );
wxString attrib, tmp;
/* Some texts start by '\' and have formating chars (font name, font option...)
* ending with ';'
* Here are some mtext formatting codes:
* Format code Purpose
* \0...\o Turns overline on and off
* \L...\l Turns underline on and off
* \~ Inserts a nonbreaking space
\\ Inserts a backslash
\\\{...\} Inserts an opening and closing brace
\\ \File name; Changes to the specified font file
\\ \Hvalue; Changes to the text height specified in drawing units
\\ \Hvaluex; Changes the text height to a multiple of the current text height
\\ \S...^...; Stacks the subsequent text at the \, #, or ^ symbol
\\ \Tvalue; Adjusts the space between characters, from.75 to 4 times
\\ \Qangle; Changes obliquing angle
\\ \Wvalue; Changes width factor to produce wide text
\\ \A Sets the alignment value; valid values: 0, 1, 2 (bottom, center, top) while( text.StartsWith( wxT("\\") ) )
*/
while( text.StartsWith( wxT( "\\" ) ) )
{
attrib << text.BeforeFirst( ';' );
tmp = text.AfterFirst( ';' );
text = tmp;
}
TEXTE_PCB* pcb_text = new TEXTE_PCB( NULL );
pcb_text->SetLayer( ToLAYER_ID( m_brdLayer ) );
wxPoint textpos( mapX( aData.basePoint.x ), mapY( aData.basePoint.y ) );
pcb_text->SetTextPosition( textpos );
pcb_text->SetOrientation( aData.angle * 10 );
// The 0.8 factor gives a better height/width ratio with our font
pcb_text->SetWidth( mapDim( aData.height * 0.8 ) );
pcb_text->SetHeight( mapDim( aData.height ) );
pcb_text->SetThickness( mapDim( aData.thickness == 0 ? m_defaultThickness : aData.thickness ) );
pcb_text->SetText( text );
// Initialize text justifications:
if( aData.textgen <= 3 )
{
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_TOP );
}
else if( aData.textgen <= 6 )
{
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_CENTER );
}
else
{
pcb_text->SetVertJustify( GR_TEXT_VJUSTIFY_BOTTOM );
}
if( aData.textgen % 3 == 1 )
{
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
}
else if( aData.textgen % 3 == 2 )
{
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_CENTER );
}
else
{
pcb_text->SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
}
#if 0 // These setting have no mening in Pcbnew
if( data.alignH==1 )
{
// Text is left to right;
}
else if( data.alignH == 3 )
{
// Text is top to bottom;
}
else
{
// use ByStyle;
}
if( aData.alignV==1 )
{
// use AtLeast;
}
else
{
// useExact;
}
#endif
m_newItemsList.push_back( pcb_text );
}
/**
* Sets the header variables from the DXF file.
*/
void DXF2BRD_CONVERTER::addHeader( const DRW_Header* data )
{
std::map<std::string, DRW_Variant*>::const_iterator it;
for( it = data->vars.begin(); it != data->vars.end(); ++it )
{
std::string key = ( (*it).first ).c_str();
if( key == "$DWGCODEPAGE" )
{
DRW_Variant* var = (*it).second;
m_codePage = ( *var->content.s );
}
}
}
/**
* Converts a native unicode string into a DXF encoded string.
*
* DXF endoding includes the following special sequences:
* - %%%c for a diameter sign
* - %%%d for a degree sign
* - %%%p for a plus/minus sign
*/
wxString DXF2BRD_CONVERTER::toDxfString( const wxString& aStr )
{
wxString res;
int j = 0;
for( unsigned i = 0; i<aStr.length(); ++i )
{
int c = aStr[i];
if( c > 175 || c < 11 )
{
res.append( aStr.Mid( j, i - j ) );
j = i;
switch( c )
{
case 0x0A:
res += wxT( "\\P" );
break;
// diameter:
#ifdef __WINDOWS_
// windows, as always, is special.
case 0x00D8:
#else
case 0x2205:
#endif
res += wxT( "%%C" );
break;
// degree:
case 0x00B0:
res += wxT( "%%D" );
break;
// plus/minus
case 0x00B1:
res += wxT( "%%P" );
break;
default:
j--;
break;
}
j++;
}
}
res.append( aStr.Mid( j ) );
return res;
}
/**
* Converts a DXF encoded string into a native Unicode string.
*/
wxString DXF2BRD_CONVERTER::toNativeString( const wxString& aData )
{
wxString res;
// Ignore font tags:
int j = 0;
for( unsigned i = 0; i < aData.length(); ++i )
{
if( aData[ i ] == 0x7B ) // is '{' ?
{
if( aData[ i + 1 ] == 0x5c && aData[ i + 2 ] == 0x66 ) // is "\f" ?
{
// found font tag, append parsed part
res.append( aData.Mid( j, i - j ) );
// skip to ';'
for( unsigned k = i + 3; k < aData.length(); ++k )
{
if( aData[ k ] == 0x3B )
{
i = j = ++k;
break;
}
}
// add to '}'
for( unsigned k = i; k < aData.length(); ++k )
{
if( aData[ k ] == 0x7D )
{
res.append( aData.Mid( i, k - i ) );
i = j = ++k;
break;
}
}
}
}
}
res.append( aData.Mid( j ) );
#if 1
wxRegEx regexp;
// Line feed:
regexp.Compile( wxT( "\\\\P" ) );
regexp.Replace( &res, wxT( "\n" ) );
// Space:
regexp.Compile( wxT( "\\\\~" ) );
regexp.Replace( &res, wxT( " " ) );
// diameter:
regexp.Compile( wxT( "%%[cC]" ) );
#ifdef __WINDOWS__
// windows, as always, is special.
regexp.Replace( &res, wxChar( 0xD8 ) );
#else
// Empty_set, diameter is 0x2300
regexp.Replace( &res, wxChar( 0x2205 ) );
#endif
// degree:
regexp.Compile( wxT( "%%[dD]" ) );
regexp.Replace( &res, wxChar( 0x00B0 ) );
// plus/minus
regexp.Compile( wxT( "%%[pP]" ) );
regexp.Replace( &res, wxChar( 0x00B1 ) );
#endif
return res;
}
void DXF2BRD_CONVERTER::addTextStyle( const DRW_Textstyle& aData )
{
// TODO
}
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