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kicad/eeschema/load_one_schematic_file.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jean-pierre.charras@gipsa-lab.inpg.fr
* Copyright (C) 2008 Wayne Stambaugh <stambaughw@verizon.net>
* 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 load_one_schematic_file.cpp
* @brief Code to load and save Eeschema files.
*/
#include <fctsys.h>
#include <confirm.h>
#include <kicad_string.h>
#include <schframe.h>
#include <richio.h>
#include <project.h>
#include <general.h>
#include <sch_bus_entry.h>
#include <sch_marker.h>
#include <sch_junction.h>
#include <sch_line.h>
#include <sch_no_connect.h>
#include <sch_component.h>
#include <sch_text.h>
#include <sch_sheet.h>
#include <sch_bitmap.h>
#include <wildcards_and_files_ext.h>
bool ReadSchemaDescr( LINE_READER* aLine, wxString& aMsgDiag, SCH_SCREEN* Window );
bool SCH_EDIT_FRAME::LoadOneEEFile( SCH_SCREEN* aScreen, const wxString& aFullFileName, bool append )
{
char name1[256];
bool itemLoaded = false;
SCH_ITEM* item;
wxString msgDiag; // Error and log messages
char* line;
wxFileName fn;
if( aScreen == NULL )
return false;
if( aFullFileName.IsEmpty() )
return false;
// Place the undo limit into the screen
aScreen->SetMaxUndoItems( m_UndoRedoCountMax );
// If path is relative, this expands it from the project directory.
wxString fname = Prj().AbsolutePath( aFullFileName );
#ifdef __WINDOWS__
fname.Replace( wxT("/"), wxT("\\") );
#else
fname.Replace( wxT("\\"), wxT("/") );
#endif
fn = fname;
CheckForAutoSaveFile( fn, SchematicBackupFileExtension );
wxLogTrace( traceAutoSave, wxT( "Loading schematic file " ) + aFullFileName );
aScreen->SetCurItem( NULL );
if( !append )
aScreen->SetFileName( aFullFileName );
FILE* f = wxFopen( fname, wxT( "rt" ) );
if( !f )
{
msgDiag.Printf( _( "Failed to open '%s'" ), GetChars( aFullFileName ) );
DisplayError( this, msgDiag );
return false;
}
// reader now owns the open FILE.
FILE_LINE_READER reader( f, aFullFileName );
msgDiag.Printf( _( "Loading '%s'" ), GetChars( aScreen->GetFileName() ) );
PrintMsg( msgDiag );
if( !reader.ReadLine()
|| strncmp( (char*)reader + 9, SCHEMATIC_HEAD_STRING,
sizeof( SCHEMATIC_HEAD_STRING ) - 1 ) != 0 )
{
msgDiag.Printf( _( "'%s' is NOT an Eeschema file!" ), GetChars( aFullFileName ) );
DisplayError( this, msgDiag );
return false;
}
line = reader.Line();
// get the file version here.
char *strversion = line + 9 + sizeof( SCHEMATIC_HEAD_STRING );
// Skip blanks
while( *strversion && *strversion < '0' )
strversion++;
int version = atoi( strversion );
if( version > EESCHEMA_VERSION )
{
msgDiag.Printf( _(
"'%s' was created by a more recent version of Eeschema and may not"
" load correctly. Please consider updating!" ),
GetChars( aFullFileName )
);
DisplayInfoMessage( this, msgDiag );
}
#if 0
// Compile it if the new version is unreadable by previous Eeschema versions
else if( version < EESCHEMA_VERSION )
{
MsgDiag = aFullFileName + _( " was created by an older version of \
Eeschema. It will be stored in the new file format when you save this file \
again." );
DisplayInfoMessage( this, MsgDiag );
}
#endif
// The next lines are the lib list section, and are mainly comments, like:
// LIBS:power
// the lib list is not used, but is in schematic file just in case.
// It is usually not empty, but we accept empty list.
// If empty, there is a legacy section, not used
// EELAYER i j
// and the last line is
// EELAYER END
// Skip all lines until the end of header "EELAYER END" is found
while( reader.ReadLine() )
{
line = reader.Line();
while( *line == ' ' )
line++;
if( strncasecmp( line, "EELAYER END", 11 ) == 0 )
break; // end of not used header found
}
while( reader.ReadLine() )
{
itemLoaded = false;
line = reader.Line();
item = NULL;
char* sline = line;
while( (*sline != ' ' ) && *sline )
sline++;
switch( line[0] )
{
case '$': // identification block
if( line[1] == 'C' )
item = new SCH_COMPONENT();
else if( line[1] == 'S' )
item = new SCH_SHEET();
else if( line[1] == 'D' )
itemLoaded = ReadSchemaDescr( &reader, msgDiag, aScreen );
else if( line[1] == 'B' )
item = new SCH_BITMAP();
else if( line[1] == 'E' )
itemLoaded = true; // The EOF marker
break;
case 'L': // Its a library item.
item = new SCH_COMPONENT();
break;
case 'W': // Its a Segment (WIRE or BUS) item.
item = new SCH_LINE();
break;
case 'E': // Its a WIRE or BUS item.
/* The bus entry can be represented by two different
* classes, so we need a factory function */
itemLoaded = SCH_BUS_ENTRY_BASE::Load( reader, msgDiag, &item );
break;
case 'C': // It is a connection item.
item = new SCH_JUNCTION();
break;
case 'K': // It is a Marker item.
// Markers are no more read from file. they are only created on
// demand in schematic
itemLoaded = true; // Just skip descr and disable err message
break;
case 'N': // It is a NoConnect item.
item = new SCH_NO_CONNECT();
break;
case 'T': // It is a text item.
if( sscanf( sline, "%255s", name1 ) != 1 )
{
msgDiag.Printf( _( "Eeschema file text load error at line %d" ),
reader.LineNumber() );
itemLoaded = false;
}
else if( name1[0] == 'L' )
item = new SCH_LABEL();
else if( name1[0] == 'G' && version > 1 )
item = new SCH_GLOBALLABEL();
else if( (name1[0] == 'H') || (name1[0] == 'G' && version == 1) )
item = new SCH_HIERLABEL();
else
item = new SCH_TEXT();
break;
default:
itemLoaded = false;
msgDiag.Printf( _( "Eeschema file undefined object at line %d, aborted" ),
reader.LineNumber() );
msgDiag << wxT( "\n" ) << FROM_UTF8( line );
}
if( item )
{
// Load it if it wasn't by a factory
if( !itemLoaded )
itemLoaded = item->Load( reader, msgDiag );
if( !itemLoaded )
{
delete item;
}
else
{
aScreen->Append( item );
}
}
if( !itemLoaded )
{
msgDiag.Printf( _( "Eeschema file object not loaded at line %d, aborted" ),
reader.LineNumber() );
msgDiag << wxT( "\n" ) << FROM_UTF8( line );
DisplayError( this, msgDiag );
break;
}
}
#if 0 && defined (DEBUG)
aScreen->Show( 0, std::cout );
#endif
// Build links between each components and its part lib LIB_PART
aScreen->UpdateSymbolLinks();
aScreen->TestDanglingEnds();
msgDiag.Printf( _( "Done Loading <%s>" ), GetChars( aScreen->GetFileName() ) );
PrintMsg( msgDiag );
return true; // Although it may be that file is only partially loaded.
}
/// Get the length of a string constant, at compile time
#define SZ( x ) (sizeof(x)-1)
static const char delims[] = " \t\r\n";
/* Read the schematic header. */
bool ReadSchemaDescr( LINE_READER* aLine, wxString& aMsgDiag, SCH_SCREEN* aScreen )
{
char* line = aLine->Line();
char* pageType = strtok( line + SZ( "$Descr" ), delims );
char* width = strtok( NULL, delims );
char* height = strtok( NULL, delims );
char* orient = strtok( NULL, delims );
wxString pagename = FROM_UTF8( pageType );
PAGE_INFO pageInfo;
TITLE_BLOCK tb;
if( !pageInfo.SetType( pagename ) )
{
aMsgDiag.Printf( _( "Eeschema file dimension definition error line %d,"
"\nAbort reading file.\n" ),
aLine->LineNumber() );
aMsgDiag << FROM_UTF8( line );
}
if( pagename == PAGE_INFO::Custom )
{
if( width && height )
{
int w = atoi( width );
int h = atoi( height );
pageInfo.SetWidthMils( w );
pageInfo.SetHeightMils( h );
}
}
// non custom size, set portrait if its present
else if( orient && !strcmp( orient, "portrait" ) )
{
pageInfo.SetPortrait( true );
}
aScreen->SetPageSettings( pageInfo );
for(;;)
{
char buf[1024];
if( !aLine->ReadLine() )
return true;
line = aLine->Line();
if( strncasecmp( line, "$End", 4 ) == 0 )
{
aScreen->SetTitleBlock( tb );
break;
}
if( strncasecmp( line, "Sheet", 2 ) == 0 )
sscanf( line + 5, " %d %d",
&aScreen->m_ScreenNumber, &aScreen->m_NumberOfScreens );
if( strncasecmp( line, "Title", 2 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetTitle( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Date", 2 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetDate( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Rev", 2 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetRevision( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Comp", 4 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetCompany( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Comment1", 8 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetComment1( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Comment2", 8 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetComment2( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Comment3", 8 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetComment3( FROM_UTF8( buf ) );
continue;
}
if( strncasecmp( line, "Comment4", 8 ) == 0 )
{
ReadDelimitedText( buf, line, 256 );
tb.SetComment4( FROM_UTF8( buf ) );
continue;
}
}
return true;
}
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