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kicad/gerbview/readgerb.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2007-2016 Jean-Pierre Charras jp.charras at wanadoo.fr
* Copyright (C) 1992-2023 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
*/
#include "ki_exception.h"
#include <string_utils.h>
#include <locale_io.h>
#include <gerbview.h>
#include <gerbview_frame.h>
#include <gerber_file_image.h>
#include <gerber_file_image_list.h>
#include <richio.h>
#include <view/view.h>
#include <dialogs/html_message_box.h>
#include <macros.h>
#include <wx/msgdlg.h>
/* Read a gerber file, RS274D, RS274X or RS274X2 format.
*/
bool GERBVIEW_FRAME::Read_GERBER_File( const wxString& GERBER_FullFileName )
{
wxString msg;
int layer = GetActiveLayer();
GERBER_FILE_IMAGE_LIST* images = GetImagesList();
GERBER_FILE_IMAGE* gerber = GetGbrImage( layer );
if( gerber != nullptr )
{
Erase_Current_DrawLayer( false );
}
// use an unique ptr while we load to free on exception properly
std::unique_ptr<GERBER_FILE_IMAGE> gerber_uptr = std::make_unique<GERBER_FILE_IMAGE>( layer );
// Read the gerber file. The image will be added only if it can be read
// to avoid broken data.
bool success = gerber_uptr->LoadGerberFile( GERBER_FullFileName );
if( !success )
{
gerber_uptr.reset();
msg.Printf( _( "File '%s' not found" ), GERBER_FullFileName );
ShowInfoBarError( msg );
return false;
}
gerber = gerber_uptr.release();
wxASSERT( gerber != nullptr );
images->AddGbrImage( gerber, layer );
// Display errors list
if( gerber->GetMessages().size() > 0 )
{
HTML_MESSAGE_BOX dlg( this, _( "Errors" ) );
dlg.ListSet( gerber->GetMessages() );
dlg.ShowModal();
}
/* if the gerber file has items using D codes but missing D codes definitions,
* it can be a deprecated RS274D file (i.e. without any aperture information),
* or has missing definitions,
* warn the user:
*/
if( gerber->GetItemsCount() && gerber->m_Has_MissingDCode )
{
if( !gerber->m_Has_DCode )
msg = _("Warning: this file has no D-Code definition\n"
"Therefore the size of some items is undefined");
else
msg = _("Warning: this file has some missing D-Code definitions\n"
"Therefore the size of some items is undefined");
wxMessageBox( msg );
}
if( GetCanvas() )
{
if( gerber->m_ImageNegative )
{
// TODO: find a way to handle negative images
// (maybe convert geometry into positives?)
}
for( GERBER_DRAW_ITEM* item : gerber->GetItems() )
GetCanvas()->GetView()->Add( (KIGFX::VIEW_ITEM*) item );
}
return true;
}
/*
* Original function derived from gerber_is_rs274x_p() of gerbv 2.7.0.
* Copyright of the source file readgerb.cpp included below:
*/
/* gEDA - GNU Electronic Design Automation
* This is a part of gerbv
*
* Copyright (C) 2000-2003 Stefan Petersen (spe@stacken.kth.se)
*
* $Id$
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
*/
bool GERBER_FILE_IMAGE::TestFileIsRS274( const wxString& aFullFileName )
{
char* letter = nullptr;
bool foundADD = false;
bool foundD0 = false;
bool foundD2 = false;
bool foundM0 = false;
bool foundM2 = false;
bool foundStar = false;
bool foundX = false;
bool foundY = false;
try
{
FILE_LINE_READER gerberReader( aFullFileName );
while( gerberReader.ReadLine() )
{
// Remove all whitespace from the beginning and end
char* line = StrPurge( gerberReader.Line() );
// Skip empty lines
if( *line == 0 )
continue;
// Check that file is not binary (non-printing chars)
for( size_t i = 0; i < strlen( line ); i++ )
{
if( !isascii( line[i] ) )
return false;
}
if( strstr( line, "%ADD" ) )
foundADD = true;
if( strstr( line, "D00" ) || strstr( line, "D0" ) )
foundD0 = true;
if( strstr( line, "D02" ) || strstr( line, "D2" ) )
foundD2 = true;
if( strstr( line, "M00" ) || strstr( line, "M0" ) )
foundM0 = true;
if( strstr( line, "M02" ) || strstr( line, "M2" ) )
foundM2 = true;
if( strstr( line, "*" ) )
foundStar = true;
/* look for X<number> or Y<number> */
if( ( letter = strstr( line, "X" ) ) != nullptr )
{
if( isdigit( letter[1] ) )
foundX = true;
}
if( ( letter = strstr( line, "Y" ) ) != nullptr )
{
if( isdigit( letter[1] ) )
foundY = true;
}
}
}
catch( IO_ERROR& )
{
return false;
}
// RS-274X
if( ( foundD0 || foundD2 || foundM0 || foundM2 ) && foundADD && foundStar
&& ( foundX || foundY ) )
{
return true;
}
// RS-274D. Could be folded into the expression above, but someday
// we might want to test for them separately.
else if( ( foundD0 || foundD2 || foundM0 || foundM2 ) && !foundADD && foundStar
&& ( foundX || foundY ) )
{
return true;
}
return false;
}
// A large buffer to store one line
char GERBER_FILE_IMAGE::m_LineBuffer[GERBER_BUFZ+1];
bool GERBER_FILE_IMAGE::LoadGerberFile( const wxString& aFullFileName )
{
int G_command = 0; // command number for G commands like G04
int D_commande = 0; // command number for D commands like D02
char* text;
ClearMessageList( );
ResetDefaultValues();
// Read the gerber file */
m_Current_File = wxFopen( aFullFileName, wxT( "rt" ) );
if( m_Current_File == nullptr )
return false;
m_FileName = aFullFileName;
LOCALE_IO toggleIo;
wxString msg;
while( true )
{
if( fgets( m_LineBuffer, GERBER_BUFZ, m_Current_File ) == nullptr )
break;
m_LineNum++;
text = StrPurge( m_LineBuffer );
while( text && *text )
{
switch( *text )
{
case ' ':
case '\r':
case '\n':
text++;
break;
case '*': // End command
m_CommandState = END_BLOCK;
text++;
break;
case 'M': // End file
m_CommandState = CMD_IDLE;
while( *text )
text++;
break;
case 'G': /* Line type Gxx : command */
G_command = CodeNumber( text );
Execute_G_Command( text, G_command );
break;
case 'D': /* Line type Dxx : Tool selection (xx > 0) or
* command if xx = 0..9 */
D_commande = CodeNumber( text );
Execute_DCODE_Command( text, D_commande );
break;
case 'X':
case 'Y': /* Move or draw command */
m_CurrentPos = ReadXYCoord( text );
if( *text == '*' ) // command like X12550Y19250*
{
Execute_DCODE_Command( text, m_Last_Pen_Command );
}
break;
case 'I':
case 'J': /* Auxiliary Move command */
m_IJPos = ReadIJCoord( text );
if( *text == '*' ) // command like X35142Y15945J504*
{
Execute_DCODE_Command( text, m_Last_Pen_Command );
}
break;
case '%':
if( m_CommandState != ENTER_RS274X_CMD )
{
m_CommandState = ENTER_RS274X_CMD;
ReadRS274XCommand( m_LineBuffer, GERBER_BUFZ, text );
}
else //Error
{
AddMessageToList( wxT( "Expected RS274X Command" ) );
m_CommandState = CMD_IDLE;
text++;
}
break;
default:
msg.Printf( wxT( "Unexpected char 0x%2.2X" ), *text );
AddMessageToList( msg );
text++;
break;
}
}
}
fclose( m_Current_File );
m_InUse = true;
return true;
}
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