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kicad/common/common.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014-2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2008 Wayne Stambaugh <stambaughw@gmail.com>
* Copyright (C) 1992-2019 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 common.cpp
*/
#include <fctsys.h>
#include <eda_base_frame.h>
#include <base_struct.h>
#include <common.h>
#include <macros.h>
#include <base_units.h>
#include <reporter.h>
#include <wx/process.h>
#include <wx/config.h>
#include <wx/utils.h>
#include <wx/stdpaths.h>
#include <wx/url.h>
#include <pgm_base.h>
using KIGFX::COLOR4D;
/**
* Global variables definitions.
*
* TODO: All of these variables should be moved into the class were they
* are defined and used. Most of them probably belong in the
* application class.
*/
COLOR4D g_GhostColor;
#if defined( _WIN32 ) && defined( DEBUG )
// a wxAssertHandler_t function to filter wxWidgets alert messages when reading/writing a file
// when switching the locale to LC_NUMERIC, "C"
// It is used in class LOCALE_IO to hide a useless (in kicad) wxWidgets alert message
void KiAssertFilter( const wxString &file, int line,
const wxString &func, const wxString &cond,
const wxString &msg)
{
if( !msg.Contains( "Decimal separator mismatch" ) )
wxTheApp->OnAssertFailure( file, line, func, cond, msg );
}
#endif
std::atomic<unsigned int> LOCALE_IO::m_c_count( 0 );
// Note on Windows, setlocale( LC_NUMERIC, "C" ) works fine to read/write
// files with floating point numbers, but generates a overzealous wx alert
// in some cases (reading a bitmap for instance)
// So we disable alerts during the time a file is read or written
LOCALE_IO::LOCALE_IO()
{
// use thread safe, atomic operation
if( m_c_count++ == 0 )
{
// Store the user locale name, to restore this locale later, in dtor
m_user_locale = setlocale( LC_NUMERIC, nullptr );
#if defined( _WIN32 ) && defined( DEBUG )
// Disable wxWidgets alerts
wxSetAssertHandler( KiAssertFilter );
#endif
// Switch the locale to C locale, to read/write files with fp numbers
setlocale( LC_NUMERIC, "C" );
}
}
LOCALE_IO::~LOCALE_IO()
{
// use thread safe, atomic operation
if( --m_c_count == 0 )
{
// revert to the user locale
setlocale( LC_NUMERIC, m_user_locale.c_str() );
#if defined( _WIN32 ) && defined( DEBUG )
// Enable wxWidgets alerts
wxSetDefaultAssertHandler();
#endif
}
}
wxSize GetTextSize( const wxString& aSingleLine, wxWindow* aWindow )
{
wxCoord width;
wxCoord height;
{
wxClientDC dc( aWindow );
dc.SetFont( aWindow->GetFont() );
dc.GetTextExtent( aSingleLine, &width, &height );
}
return wxSize( width, height );
}
bool EnsureTextCtrlWidth( wxTextCtrl* aCtrl, const wxString* aString )
{
wxWindow* window = aCtrl->GetParent();
if( !window )
window = aCtrl;
wxString ctrlText;
if( !aString )
{
ctrlText = aCtrl->GetValue();
aString = &ctrlText;
}
wxSize textz = GetTextSize( *aString, window );
wxSize ctrlz = aCtrl->GetSize();
if( ctrlz.GetWidth() < textz.GetWidth() + 10 )
{
ctrlz.SetWidth( textz.GetWidth() + 10 );
aCtrl->SetSizeHints( ctrlz );
return true;
}
return false;
}
void SelectReferenceNumber( wxTextEntry* aTextEntry )
{
wxString ref = aTextEntry->GetValue();
if( ref.find_first_of( '?' ) != ref.npos )
{
aTextEntry->SetSelection( ref.find_first_of( '?' ), ref.find_last_of( '?' ) + 1 );
}
else
{
wxString num = ref;
while( !num.IsEmpty() && ( !isdigit( num.Last() ) || !isdigit( num.GetChar( 0 ) ) ) )
{
if( !isdigit( num.Last() ) )
num.RemoveLast();
if( !isdigit( num.GetChar ( 0 ) ) )
num = num.Right( num.Length() - 1);
}
aTextEntry->SetSelection( ref.Find( num ), ref.Find( num ) + num.Length() );
if( num.IsEmpty() )
aTextEntry->SetSelection( -1, -1 );
}
}
void wxStringSplit( const wxString& aText, wxArrayString& aStrings, wxChar aSplitter )
{
wxString tmp;
for( unsigned ii = 0; ii < aText.Length(); ii++ )
{
if( aText[ii] == aSplitter )
{
aStrings.Add( tmp );
tmp.Clear();
}
else
tmp << aText[ii];
}
if( !tmp.IsEmpty() )
{
aStrings.Add( tmp );
}
}
int ProcessExecute( const wxString& aCommandLine, int aFlags, wxProcess *callback )
{
return wxExecute( aCommandLine, aFlags, callback );
}
timestamp_t GetNewTimeStamp()
{
static timestamp_t oldTimeStamp;
timestamp_t newTimeStamp;
newTimeStamp = time( NULL );
if( newTimeStamp <= oldTimeStamp )
newTimeStamp = oldTimeStamp + 1;
oldTimeStamp = newTimeStamp;
return newTimeStamp;
}
double RoundTo0( double x, double precision )
{
assert( precision != 0 );
long long ix = KiROUND( x * precision );
if ( x < 0.0 )
ix = -ix;
int remainder = ix % 10; // remainder is in precision mm
if( remainder <= 2 )
ix -= remainder; // truncate to the near number
else if( remainder >= 8 )
ix += 10 - remainder; // round to near number
if ( x < 0 )
ix = -ix;
return (double) ix / precision;
}
std::unique_ptr<wxConfigBase> GetNewConfig( const wxString& aProgName )
{
wxFileName configname;
configname.AssignDir( GetKicadConfigPath() );
configname.SetFullName( aProgName );
// explicitly use wxFileConfig to prevent storing any settings in the system registry on Windows
return std::make_unique<wxFileConfig>( wxT( "" ), wxT( "" ), configname.GetFullPath() );
}
wxString GetKicadConfigPath()
{
wxFileName cfgpath;
// http://docs.wxwidgets.org/3.0/classwx_standard_paths.html#a7c7cf595d94d29147360d031647476b0
cfgpath.AssignDir( wxStandardPaths::Get().GetUserConfigDir() );
// GetUserConfigDir() does not default to ~/.config which is the current standard
// configuration file location on Linux. This has been fixed in later versions of wxWidgets.
#if !defined( __WXMSW__ ) && !defined( __WXMAC__ )
wxArrayString dirs = cfgpath.GetDirs();
if( dirs.Last() != ".config" )
cfgpath.AppendDir( ".config" );
#endif
wxString envstr;
// This shouldn't cause any issues on Windows or MacOS.
if( wxGetEnv( wxT( "XDG_CONFIG_HOME" ), &envstr ) && !envstr.IsEmpty() )
{
// Override the assignment above with XDG_CONFIG_HOME
cfgpath.AssignDir( envstr );
}
cfgpath.AppendDir( wxT( "kicad" ) );
// Use KICAD_CONFIG_HOME to allow the user to force a specific configuration path.
if( wxGetEnv( wxT( "KICAD_CONFIG_HOME" ), &envstr ) && !envstr.IsEmpty() )
{
// Override the assignment above with KICAD_CONFIG_HOME
cfgpath.AssignDir( envstr );
}
if( !cfgpath.DirExists() )
{
cfgpath.Mkdir( wxS_DIR_DEFAULT, wxPATH_MKDIR_FULL );
}
return cfgpath.GetPath();
}
enum Bracket
{
Bracket_None,
Bracket_Normal = ')',
Bracket_Curly = '}',
#ifdef __WINDOWS__
Bracket_Windows = '%', // yeah, Windows people are a bit strange ;-)
#endif
Bracket_Max
};
//
// Stolen from wxExpandEnvVars and then heavily optimized
//
wxString KIwxExpandEnvVars(const wxString& str)
{
size_t strlen = str.length();
wxString strResult;
strResult.Alloc( strlen );
for( size_t n = 0; n < strlen; n++ )
{
wxUniChar str_n = str[n];
switch( str_n.GetValue() )
{
#ifdef __WINDOWS__
case wxT( '%' ):
#endif // __WINDOWS__
case wxT( '$' ):
{
Bracket bracket;
#ifdef __WINDOWS__
if( str_n == wxT( '%' ) )
bracket = Bracket_Windows;
else
#endif // __WINDOWS__
if( n == strlen - 1 )
{
bracket = Bracket_None;
}
else
{
switch( str[n + 1].GetValue() )
{
case wxT( '(' ):
bracket = Bracket_Normal;
str_n = str[++n]; // skip the bracket
break;
case wxT( '{' ):
bracket = Bracket_Curly;
str_n = str[++n]; // skip the bracket
break;
default:
bracket = Bracket_None;
}
}
size_t m = n + 1;
wxUniChar str_m = str[m];
while( m < strlen && ( wxIsalnum( str_m ) || str_m == wxT( '_' ) ) )
str_m = str[++m];
wxString strVarName( str.c_str() + n + 1, m - n - 1 );
#ifdef __WXWINCE__
const bool expanded = false;
#else
// NB: use wxGetEnv instead of wxGetenv as otherwise variables
// set through wxSetEnv may not be read correctly!
bool expanded = false;
wxString tmp;
if( wxGetEnv( strVarName, &tmp ) )
{
strResult += tmp;
expanded = true;
}
else
#endif
{
// variable doesn't exist => don't change anything
#ifdef __WINDOWS__
if ( bracket != Bracket_Windows )
#endif
if ( bracket != Bracket_None )
strResult << str[n - 1];
strResult << str_n << strVarName;
}
// check the closing bracket
if( bracket != Bracket_None )
{
if( m == strlen || str_m != (wxChar)bracket )
{
// under MSW it's common to have '%' characters in the registry
// and it's annoying to have warnings about them each time, so
// ignore them silently if they are not used for env vars
//
// under Unix, OTOH, this warning could be useful for the user to
// understand why isn't the variable expanded as intended
#ifndef __WINDOWS__
wxLogWarning( _( "Environment variables expansion failed: missing '%c' "
"at position %u in '%s'." ),
(char)bracket, (unsigned int) (m + 1), str.c_str() );
#endif // __WINDOWS__
}
else
{
// skip closing bracket unless the variables wasn't expanded
if( !expanded )
strResult << (wxChar)bracket;
str_m = str[++m];
}
}
n = m - 1; // skip variable name
str_n = str[n];
}
break;
case wxT( '\\' ):
// backslash can be used to suppress special meaning of % and $
if( n != strlen - 1 && (str[n + 1] == wxT( '%' ) || str[n + 1] == wxT( '$' )) )
{
str_n = str[++n];
strResult += str_n;
break;
}
//else: fall through
default:
strResult += str_n;
}
}
return strResult;
}
#include <ki_mutex.h>
const wxString ExpandEnvVarSubstitutions( const wxString& aString )
{
// wxGetenv( wchar_t* ) is not re-entrant on linux.
// Put a lock on multithreaded use of wxGetenv( wchar_t* ), called from wxEpandEnvVars(),
static MUTEX getenv_mutex;
MUTLOCK lock( getenv_mutex );
// We reserve the right to do this another way, by providing our own member function.
return KIwxExpandEnvVars( aString );
}
const wxString ResolveUriByEnvVars( const wxString& aUri )
{
// URL-like URI: return as is.
wxURL url( aUri );
if( url.GetError() == wxURL_NOERR )
return aUri;
// Otherwise, the path points to a local file. Resolve environment
// variables if any.
return ExpandEnvVarSubstitutions( aUri );
}
bool EnsureFileDirectoryExists( wxFileName* aTargetFullFileName,
const wxString& aBaseFilename,
REPORTER* aReporter )
{
wxString msg;
wxString baseFilePath = wxFileName( aBaseFilename ).GetPath();
// make aTargetFullFileName path, which is relative to aBaseFilename path (if it is not
// already an absolute path) absolute:
if( !aTargetFullFileName->MakeAbsolute( baseFilePath ) )
{
if( aReporter )
{
msg.Printf( _( "Cannot make path \"%s\" absolute with respect to \"%s\"." ),
GetChars( aTargetFullFileName->GetPath() ),
GetChars( baseFilePath ) );
aReporter->Report( msg, REPORTER::RPT_ERROR );
}
return false;
}
// Ensure the path of aTargetFullFileName exists, and create it if needed:
wxString outputPath( aTargetFullFileName->GetPath() );
if( !wxFileName::DirExists( outputPath ) )
{
if( wxMkdir( outputPath ) )
{
if( aReporter )
{
msg.Printf( _( "Output directory \"%s\" created.\n" ), GetChars( outputPath ) );
aReporter->Report( msg, REPORTER::RPT_INFO );
return true;
}
}
else
{
if( aReporter )
{
msg.Printf( _( "Cannot create output directory \"%s\".\n" ),
GetChars( outputPath ) );
aReporter->Report( msg, REPORTER::RPT_ERROR );
}
return false;
}
}
return true;
}
#ifdef __WXMAC__
wxString GetOSXKicadUserDataDir()
{
// According to wxWidgets documentation for GetUserDataDir:
// Mac: ~/Library/Application Support/appname
wxFileName udir( wxStandardPaths::Get().GetUserDataDir(), wxEmptyString );
// Since appname is different if started via launcher or standalone binary
// map all to "kicad" here
udir.RemoveLastDir();
udir.AppendDir( "kicad" );
return udir.GetPath();
}
wxString GetOSXKicadMachineDataDir()
{
return wxT( "/Library/Application Support/kicad" );
}
wxString GetOSXKicadDataDir()
{
// According to wxWidgets documentation for GetDataDir:
// Mac: appname.app/Contents/SharedSupport bundle subdirectory
wxFileName ddir( wxStandardPaths::Get().GetDataDir(), wxEmptyString );
// This must be mapped to main bundle for everything but kicad.app
const wxArrayString dirs = ddir.GetDirs();
if( dirs[dirs.GetCount() - 3] != wxT( "kicad.app" ) )
{
// Bundle structure resp. current path is
// kicad.app/Contents/Applications/<standalone>.app/Contents/SharedSupport
// and will be mapped to
// kicad.app/Contents/SharedSupprt
ddir.RemoveLastDir();
ddir.RemoveLastDir();
ddir.RemoveLastDir();
ddir.RemoveLastDir();
ddir.AppendDir( wxT( "SharedSupport" ) );
}
return ddir.GetPath();
}
#endif
// add this only if it is not in wxWidgets (for instance before 3.1.0)
#ifdef USE_KICAD_WXSTRING_HASH
size_t std::hash<wxString>::operator()( const wxString& s ) const
{
return std::hash<std::wstring>{}( s.ToStdWstring() );
}
#endif
#ifdef USE_KICAD_WXPOINT_LESS
bool std::less<wxPoint>::operator()( const wxPoint& aA, const wxPoint& aB ) const
{
if( aA.x == aB.x )
return aA.y < aB.y;
return aA.x < aB.x;
}
#endif
/**
* Performance enhancements to file and directory operations.
*
* Note: while it's annoying to have to make copies of wxWidgets stuff and then
* add platform-specific performance optimizations, the following routines offer
* SIGNIFICANT performance benefits.
*/
/**
* WX_FILENAME
*
* A wrapper around a wxFileName which avoids expensive calls to wxFileName::SplitPath()
* and string concatenations by caching the path and filename locally and only resolving
* the wxFileName when it has to.
*/
WX_FILENAME::WX_FILENAME( const wxString& aPath, const wxString& aFilename ) :
m_fn( aPath, aFilename ),
m_path( aPath ),
m_fullName( aFilename )
{ }
void WX_FILENAME::SetFullName( const wxString& aFileNameAndExtension )
{
m_fullName = aFileNameAndExtension;
}
wxString WX_FILENAME::GetName() const
{
size_t dot = m_fullName.find_last_of( wxT( '.' ) );
return m_fullName.substr( 0, dot );
}
wxString WX_FILENAME::GetFullName() const
{
return m_fullName;
}
wxString WX_FILENAME::GetPath() const
{
return m_path;
}
wxString WX_FILENAME::GetFullPath() const
{
return m_path + wxT( '/' ) + m_fullName;
}
// Write locally-cached values to the wxFileName. MUST be called before using m_fn.
void WX_FILENAME::resolve()
{
size_t dot = m_fullName.find_last_of( wxT( '.' ) );
m_fn.SetName( m_fullName.substr( 0, dot ) );
m_fn.SetExt( m_fullName.substr( dot + 1 ) );
}
long long WX_FILENAME::GetTimestamp()
{
resolve();
if( m_fn.FileExists() )
return m_fn.GetModificationTime().GetValue().GetValue();
return 0;
}
/**
* A copy of wxMatchWild(), which wxWidgets attributes to Douglas A. Lewis
* <dalewis@cs.Buffalo.EDU> and ircII's reg.c.
*
* This version is modified to skip any encoding conversions (for performance).
*/
bool matchWild( const char* pat, const char* text, bool dot_special )
{
if( !*text )
{
/* Match if both are empty. */
return !*pat;
}
const char *m = pat,
*n = text,
*ma = NULL,
*na = NULL;
int just = 0,
acount = 0,
count = 0;
if( dot_special && (*n == '.') )
{
/* Never match so that hidden Unix files
* are never found. */
return false;
}
for(;;)
{
if( *m == '*' )
{
ma = ++m;
na = n;
just = 1;
acount = count;
}
else if( *m == '?' )
{
m++;
if( !*n++ )
return false;
}
else
{
if( *m == '\\' )
{
m++;
/* Quoting "nothing" is a bad thing */
if( !*m )
return false;
}
if( !*m )
{
/*
* If we are out of both strings or we just
* saw a wildcard, then we can say we have a
* match
*/
if( !*n )
return true;
if( just )
return true;
just = 0;
goto not_matched;
}
/*
* We could check for *n == NULL at this point, but
* since it's more common to have a character there,
* check to see if they match first (m and n) and
* then if they don't match, THEN we can check for
* the NULL of n
*/
just = 0;
if( *m == *n )
{
m++;
count++;
n++;
}
else
{
not_matched:
/*
* If there are no more characters in the
* string, but we still need to find another
* character (*m != NULL), then it will be
* impossible to match it
*/
if( !*n )
return false;
if( ma )
{
m = ma;
n = ++na;
count = acount;
}
else
return false;
}
}
}
}
/**
* A copy of ConvertFileTimeToWx() because wxWidgets left it as a static function
* private to src/common/filename.cpp.
*/
#if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
// Convert between wxDateTime and FILETIME which is a 64-bit value representing
// the number of 100-nanosecond intervals since January 1, 1601 UTC.
//
// This is the offset between FILETIME epoch and the Unix/wxDateTime Epoch.
static wxInt64 EPOCH_OFFSET_IN_MSEC = wxLL(11644473600000);
static void ConvertFileTimeToWx( wxDateTime *dt, const FILETIME &ft )
{
wxLongLong t( ft.dwHighDateTime, ft.dwLowDateTime );
t /= 10000; // Convert hundreds of nanoseconds to milliseconds.
t -= EPOCH_OFFSET_IN_MSEC;
*dt = wxDateTime( t );
}
#endif // wxUSE_DATETIME && __WIN32__
/**
* TimestampDir
*
* This routine offers SIGNIFICANT performance benefits over using wxWidgets to gather
* timestamps from matching files in a directory.
* @param aDirPath the directory to search
* @param aFilespec a (wildcarded) file spec to match against
* @return a hash of the last-mod-dates of all matching files in the directory
*/
long long TimestampDir( const wxString& aDirPath, const wxString& aFilespec )
{
long long timestamp = 0;
#if defined( __WIN32__ )
// Win32 version.
// Save time by not searching for each path twice: once in wxDir.GetNext() and once in
// wxFileName.GetModificationTime(). Also cuts out wxWidgets' string-matching and case
// conversion by staying on the MSW side of things.
std::wstring filespec( aDirPath.t_str() );
filespec += '\\';
filespec += aFilespec.t_str();
WIN32_FIND_DATA findData;
wxDateTime lastModDate;
HANDLE fileHandle = ::FindFirstFile( filespec.data(), &findData );
if( fileHandle != INVALID_HANDLE_VALUE )
{
do
{
ConvertFileTimeToWx( &lastModDate, findData.ftLastWriteTime );
timestamp += lastModDate.GetValue().GetValue();
}
while ( FindNextFile( fileHandle, &findData ) != 0 );
}
FindClose( fileHandle );
#else
// POSIX version.
// Save time by not converting between encodings -- do everything on the file-system side.
std::string filespec( aFilespec.fn_str() );
std::string dir_path( aDirPath.fn_str() );
DIR* dir = opendir( dir_path.c_str() );
if( dir )
{
for( dirent* dir_entry = readdir( dir ); dir_entry; dir_entry = readdir( dir ) )
{
if( !matchWild( filespec.c_str(), dir_entry->d_name, true ) )
continue;
std::string entry_path = dir_path + '/' + dir_entry->d_name;
struct stat entry_stat;
wxCRT_Lstat( entry_path.c_str(), &entry_stat );
// Timestamp the source file, not the symlink
if( S_ISLNK( entry_stat.st_mode ) ) // wxFILE_EXISTS_SYMLINK
{
char buffer[ PATH_MAX + 1 ];
ssize_t pathLen = readlink( entry_path.c_str(), buffer, PATH_MAX );
if( pathLen > 0 )
{
buffer[ pathLen ] = '\0';
entry_path = dir_path + buffer;
wxCRT_Lstat( entry_path.c_str(), &entry_stat );
}
}
if( S_ISREG( entry_stat.st_mode ) ) // wxFileExists()
timestamp += entry_stat.st_mtime * 1000;
}
closedir( dir );
}
#endif
return timestamp;
}
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