KiCad PCB EDA Suite
JSON_SETTINGS Class Reference

#include <json_settings.h>

Inheritance diagram for JSON_SETTINGS:
APP_SETTINGS_BASE COLOR_SETTINGS COMMON_SETTINGS NESTED_SETTINGS PROJECT_FILE PROJECT_LOCAL_SETTINGS BITMAP2CMP_SETTINGS CVPCB_SETTINGS EDA_3D_VIEWER_SETTINGS EESCHEMA_SETTINGS FOOTPRINT_EDITOR_SETTINGS GERBVIEW_SETTINGS KICAD_SETTINGS PCB_CALCULATOR_SETTINGS PCBNEW_SETTINGS PL_EDITOR_SETTINGS SYMBOL_EDITOR_SETTINGS BOARD_DESIGN_SETTINGS ERC_SETTINGS NET_SETTINGS PNS::ROUTING_SETTINGS SCHEMATIC_SETTINGS

Public Member Functions

 JSON_SETTINGS (const wxString &aFilename, SETTINGS_LOC aLocation, int aSchemaVersion)
 
 JSON_SETTINGS (const wxString &aFilename, SETTINGS_LOC aLocation, int aSchemaVersion, bool aCreateIfMissing, bool aCreateIfDefault, bool aWriteFile)
 
virtual ~JSON_SETTINGS ()
 
wxString GetFilename () const
 
wxString GetFullFilename () const
 
void SetFilename (const wxString &aFilename)
 
SETTINGS_LOC GetLocation () const
 
void SetLegacyFilename (const wxString &aFilename)
 
bool IsReadOnly () const
 
void SetReadOnly (bool aReadOnly)
 
virtual void Load ()
 Updates the parameters of this object based on the current JSON document contents. More...
 
virtual bool Store ()
 Stores the current parameters into the JSON document represented by this object Note: this doesn't do any writing to disk; that's handled by SETTINGS_MANAGER. More...
 
virtual bool LoadFromFile (const wxString &aDirectory="")
 Loads the backing file from disk and then calls Load() More...
 
virtual bool SaveToFile (const wxString &aDirectory="", bool aForce=false)
 
void ResetToDefaults ()
 Resets all parameters to default values. More...
 
OPT< nlohmann::jsonGetJson (const std::string &aPath) const
 Fetches a JSON object that is a subset of this JSON_SETTINGS object, using a path of the form "key1.key2.key3" to refer to nested objects. More...
 
template<typename ValueType >
OPT< ValueType > Get (const std::string &aPath) const
 Fetches a value from within the JSON document. More...
 
template<typename ValueType >
void Set (const std::string &aPath, ValueType aVal)
 Stores a value into the JSON document Will throw an exception if ValueType isn't something that the library can handle. More...
 
bool Migrate ()
 Migrates the schema of this settings from the version in the file to the latest version. More...
 
virtual bool MigrateFromLegacy (wxConfigBase *aLegacyConfig)
 Migrates from wxConfig to JSON-based configuration. More...
 
void AddNestedSettings (NESTED_SETTINGS *aSettings)
 Transfers ownership of a given NESTED_SETTINGS to this object. More...
 
void ReleaseNestedSettings (NESTED_SETTINGS *aSettings)
 Saves and frees a nested settings object, if it exists within this one. More...
 
void SetManager (SETTINGS_MANAGER *aManager)
 
template<>
OPT< wxString > Get (const std::string &aPath) const
 
template<>
void Set (const std::string &aPath, wxString aVal)
 
template<>
void Set (const std::string &aPath, wxString aVal)
 

Static Public Member Functions

static nlohmann::json::json_pointer PointerFromString (std::string aPath)
 Builds a JSON pointer based on a given string. More...
 
static bool SetIfPresent (const nlohmann::json &aObj, const std::string &aPath, wxString &aTarget)
 Sets the given string if the given key/path is present. More...
 
static bool SetIfPresent (const nlohmann::json &aObj, const std::string &aPath, bool &aTarget)
 Sets the given bool if the given key/path is present. More...
 
static bool SetIfPresent (const nlohmann::json &aObj, const std::string &aPath, int &aTarget)
 Sets the given int if the given key/path is present. More...
 
static bool SetIfPresent (const nlohmann::json &aObj, const std::string &aPath, unsigned int &aTarget)
 Sets the given unsigned int if the given key/path is present. More...
 

Protected Member Functions

void registerMigration (int aOldSchemaVersion, int aNewSchemaVersion, std::function< bool(void)> aMigrator)
 Registers a migration from one schema version to another. More...
 
template<typename ValueType >
bool fromLegacy (wxConfigBase *aConfig, const std::string &aKey, const std::string &aDest)
 Translates a legacy wxConfig value to a given JSON pointer value. More...
 
bool fromLegacyString (wxConfigBase *aConfig, const std::string &aKey, const std::string &aDest)
 Translates a legacy wxConfig string value to a given JSON pointer value. More...
 
bool fromLegacyColor (wxConfigBase *aConfig, const std::string &aKey, const std::string &aDest)
 Translates a legacy COLOR4D stored in a wxConfig string to a given JSON pointer value. More...
 
virtual wxString getFileExt () const
 
virtual wxString getLegacyFileExt () const
 

Protected Attributes

wxString m_filename
 The filename (not including path) of this settings file (inicode) More...
 
wxString m_legacy_filename
 The filename of the wxConfig legacy file (if different from m_filename) More...
 
SETTINGS_LOC m_location
 The location of this settings file (. More...
 
std::vector< PARAM_BASE * > m_params
 The list of parameters (owned by this object) More...
 
std::vector< NESTED_SETTINGS * > m_nested_settings
 Nested settings files that live inside this one, if any. More...
 
bool m_createIfMissing
 Whether or not the backing store file should be created it if doesn't exist. More...
 
bool m_createIfDefault
 Whether or not the backing store file should be created if all parameters are still at their default values. More...
 
bool m_writeFile
 Whether or not the backing store file should be written. More...
 
bool m_deleteLegacyAfterMigration
 Whether or not to delete legacy file after migration. More...
 
bool m_resetParamsIfMissing
 Whether or not to set parameters to their default value if missing from JSON on Load() More...
 
int m_schemaVersion
 Version of this settings schema. More...
 
SETTINGS_MANAGERm_manager
 A pointer to the settings manager managing this file (may be null) More...
 
std::vector< nlohmann::json::json_pointer > m_preserved_paths
 A list of JSON pointers that are preserved during a read-update-write to disk. More...
 
std::map< int, std::pair< int, std::function< bool()> > > m_migrators
 A map of starting schema version to a pair of <ending version, migrator function> More...
 

Detailed Description

Definition at line 53 of file json_settings.h.

Constructor & Destructor Documentation

◆ JSON_SETTINGS() [1/2]

JSON_SETTINGS::JSON_SETTINGS ( const wxString &  aFilename,
SETTINGS_LOC  aLocation,
int  aSchemaVersion 
)
inline

Definition at line 56 of file json_settings.h.

56  :
57  JSON_SETTINGS( aFilename, aLocation, aSchemaVersion, true, true, true ) {}
JSON_SETTINGS(const wxString &aFilename, SETTINGS_LOC aLocation, int aSchemaVersion)
Definition: json_settings.h:56

◆ JSON_SETTINGS() [2/2]

JSON_SETTINGS::JSON_SETTINGS ( const wxString &  aFilename,
SETTINGS_LOC  aLocation,
int  aSchemaVersion,
bool  aCreateIfMissing,
bool  aCreateIfDefault,
bool  aWriteFile 
)

Definition at line 39 of file json_settings.cpp.

41  :
43  m_filename( aFilename ),
44  m_legacy_filename( "" ),
45  m_location( aLocation ),
46  m_createIfMissing( aCreateIfMissing ),
47  m_createIfDefault( aCreateIfDefault ),
48  m_writeFile( aWriteFile ),
50  m_resetParamsIfMissing( true ),
51  m_schemaVersion( aSchemaVersion ),
52  m_manager( nullptr )
53 {
54  try
55  {
56  ( *this )[PointerFromString( "meta.filename" )] = GetFullFilename();
57  }
58  catch( ... )
59  {
60  wxLogTrace( traceSettings, "Error: Could not create filename field for %s",
61  GetFullFilename() );
62  }
63 
64 
65  m_params.emplace_back(
66  new PARAM<int>( "meta.version", &m_schemaVersion, m_schemaVersion, true ) );
67 }
std::vector< PARAM_BASE * > m_params
The list of parameters (owned by this object)
bool m_createIfMissing
Whether or not the backing store file should be created it if doesn't exist.
wxString GetFullFilename() const
nlohmann::json json
Definition: gerbview.cpp:39
bool m_deleteLegacyAfterMigration
Whether or not to delete legacy file after migration.
wxString m_filename
The filename (not including path) of this settings file (inicode)
wxString m_legacy_filename
The filename of the wxConfig legacy file (if different from m_filename)
SETTINGS_LOC m_location
The location of this settings file (.
bool m_resetParamsIfMissing
Whether or not to set parameters to their default value if missing from JSON on Load()
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.
bool m_createIfDefault
Whether or not the backing store file should be created if all parameters are still at their default ...
SETTINGS_MANAGER * m_manager
A pointer to the settings manager managing this file (may be null)
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.
int m_schemaVersion
Version of this settings schema.
bool m_writeFile
Whether or not the backing store file should be written.

References GetFullFilename(), m_params, m_schemaVersion, PointerFromString(), and traceSettings.

◆ ~JSON_SETTINGS()

JSON_SETTINGS::~JSON_SETTINGS ( )
virtual

Definition at line 70 of file json_settings.cpp.

71 {
72  for( auto param: m_params )
73  delete param;
74 
75  m_params.clear();
76 }
std::vector< PARAM_BASE * > m_params
The list of parameters (owned by this object)

References m_params.

Member Function Documentation

◆ AddNestedSettings()

void JSON_SETTINGS::AddNestedSettings ( NESTED_SETTINGS aSettings)

Transfers ownership of a given NESTED_SETTINGS to this object.

Can be used to construct a NESTED_SETTINGS without the parent object needing to know about the implementation of the nested object;

Parameters
aSettingsis the settings object to take ownership of
aTargetis a pointer to update to the passed in settings

Definition at line 656 of file json_settings.cpp.

657 {
658  wxLogTrace( traceSettings, "AddNestedSettings %s", aSettings->GetFilename() );
659  m_nested_settings.push_back( aSettings );
660 }
wxString GetFilename() const
Definition: json_settings.h:64
std::vector< NESTED_SETTINGS * > m_nested_settings
Nested settings files that live inside this one, if any.
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.

References GetFilename(), m_nested_settings, and traceSettings.

Referenced by NESTED_SETTINGS::SetParent().

◆ fromLegacy()

template<typename ValueType >
template bool JSON_SETTINGS::fromLegacy< bool > ( wxConfigBase *  aConfig,
const std::string &  aKey,
const std::string &  aDest 
)
protected

Translates a legacy wxConfig value to a given JSON pointer value.

Template Parameters
ValueTypeis the basic type of the value
Parameters
aConfigis the legacy config to read from
aKeyis the key (within the current path) to read
aDestis a string that will form a JSON pointer (key1.key2.key3) to write to

Definition at line 568 of file json_settings.cpp.

570 {
571  ValueType val;
572 
573  if( aConfig->Read( aKey, &val ) )
574  {
575  try
576  {
577  ( *this )[PointerFromString( aDest )] = val;
578  }
579  catch( ... )
580  {
581  wxASSERT_MSG( false, wxT( "Could not write value in fromLegacy!" ) );
582  return false;
583  }
584 
585  return true;
586  }
587 
588  return false;
589 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

◆ fromLegacyColor()

bool JSON_SETTINGS::fromLegacyColor ( wxConfigBase *  aConfig,
const std::string &  aKey,
const std::string &  aDest 
)
protected

Translates a legacy COLOR4D stored in a wxConfig string to a given JSON pointer value.

Parameters
aConfigis the legacy config to read from
aKeyis the key (within the current path) to read
aDestis a string that will form a JSON pointer (key1.key2.key3) to write to

Definition at line 628 of file json_settings.cpp.

630 {
631  wxString str;
632 
633  if( aConfig->Read( aKey, &str ) )
634  {
636  color.SetFromWxString( str );
637 
638  try
639  {
640  nlohmann::json js = nlohmann::json::array( { color.r, color.g, color.b, color.a } );
641  ( *this )[PointerFromString( aDest )] = js;
642  }
643  catch( ... )
644  {
645  wxASSERT_MSG( false, wxT( "Could not write value in fromLegacyColor!" ) );
646  return false;
647  }
648 
649  return true;
650  }
651 
652  return false;
653 }
int color
Definition: DXF_plotter.cpp:60
nlohmann::json json
Definition: gerbview.cpp:39
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.
COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:100

References color, and PointerFromString().

Referenced by APP_SETTINGS_BASE::migrateWindowConfig().

◆ fromLegacyString()

bool JSON_SETTINGS::fromLegacyString ( wxConfigBase *  aConfig,
const std::string &  aKey,
const std::string &  aDest 
)
protected

Translates a legacy wxConfig string value to a given JSON pointer value.

Parameters
aConfigis the legacy config to read from
aKeyis the key (within the current path) to read
aDestis a string that will form a JSON pointer (key1.key2.key3) to write to

Definition at line 604 of file json_settings.cpp.

606 {
607  wxString str;
608 
609  if( aConfig->Read( aKey, &str ) )
610  {
611  try
612  {
613  ( *this )[PointerFromString( aDest )] = str.ToUTF8();
614  }
615  catch( ... )
616  {
617  wxASSERT_MSG( false, wxT( "Could not write value in fromLegacyString!" ) );
618  return false;
619  }
620 
621  return true;
622  }
623 
624  return false;
625 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

Referenced by BITMAP2CMP_SETTINGS::MigrateFromLegacy(), FOOTPRINT_EDITOR_SETTINGS::MigrateFromLegacy(), GERBVIEW_SETTINGS::MigrateFromLegacy(), SYMBOL_EDITOR_SETTINGS::MigrateFromLegacy(), PROJECT_FILE::MigrateFromLegacy(), COMMON_SETTINGS::MigrateFromLegacy(), PCB_CALCULATOR_SETTINGS::MigrateFromLegacy(), APP_SETTINGS_BASE::MigrateFromLegacy(), EESCHEMA_SETTINGS::MigrateFromLegacy(), PCBNEW_SETTINGS::MigrateFromLegacy(), and APP_SETTINGS_BASE::migrateWindowConfig().

◆ Get() [1/2]

template<typename ValueType >
OPT<ValueType> JSON_SETTINGS::Get ( const std::string &  aPath) const
inline

Fetches a value from within the JSON document.

Will return an empty optional if the value is not found or a mismatching type.

Template Parameters
ValueTypeis the type to cast to
Parameters
aPathis the path within the document to retrieve
Returns
a value from within this document

Definition at line 124 of file json_settings.h.

125  {
126  if( OPT<nlohmann::json> ret = GetJson( aPath ) )
127  {
128  try
129  {
130  return ret->get<ValueType>();
131  }
132  catch( ... )
133  {
134  }
135  }
136 
137  return NULLOPT;
138  }
OPT< nlohmann::json > GetJson(const std::string &aPath) const
Fetches a JSON object that is a subset of this JSON_SETTINGS object, using a path of the form "key1....
const auto NULLOPT
Definition: optional.h:9
boost::optional< T > OPT
Definition: optional.h:7

References GetJson(), and NULLOPT.

Referenced by PARAM< wxString >::Load(), COLOR_MAP_PARAM::Load(), PARAM_ENUM< EnumType >::Load(), PARAM_LAMBDA< nlohmann::json >::Load(), PARAM_SCALED< ValueType >::Load(), BOARD_DESIGN_SETTINGS::LoadFromFile(), PARAM< wxString >::MatchesFile(), COLOR_MAP_PARAM::MatchesFile(), PARAM_PATH::MatchesFile(), PARAM_ENUM< EnumType >::MatchesFile(), PARAM_LAMBDA< nlohmann::json >::MatchesFile(), and PARAM_SCALED< ValueType >::MatchesFile().

◆ Get() [2/2]

OPT< wxString > JSON_SETTINGS::Get ( const std::string &  aPath) const

Definition at line 686 of file json_settings.cpp.

687 {
688  if( OPT<nlohmann::json> opt_json = GetJson( aPath ) )
689  return wxString( opt_json->get<std::string>().c_str(), wxConvUTF8 );
690 
691  return NULLOPT;
692 }
OPT< nlohmann::json > GetJson(const std::string &aPath) const
Fetches a JSON object that is a subset of this JSON_SETTINGS object, using a path of the form "key1....
const auto NULLOPT
Definition: optional.h:9
boost::optional< T > OPT
Definition: optional.h:7

References GetJson(), and NULLOPT.

◆ getFileExt()

virtual wxString JSON_SETTINGS::getFileExt ( ) const
inlineprotectedvirtual

Reimplemented in PROJECT_FILE, and PROJECT_LOCAL_SETTINGS.

Definition at line 274 of file json_settings.h.

275  {
276  return wxT( "json" );
277  }

Referenced by GetFullFilename(), LoadFromFile(), and SaveToFile().

◆ GetFilename()

◆ GetFullFilename()

wxString JSON_SETTINGS::GetFullFilename ( ) const

Definition at line 79 of file json_settings.cpp.

80 {
81  return wxString( m_filename + "." + getFileExt() );
82 }
wxString m_filename
The filename (not including path) of this settings file (inicode)
virtual wxString getFileExt() const

References getFileExt(), and m_filename.

Referenced by JSON_SETTINGS(), NESTED_SETTINGS::LoadFromFile(), LoadFromFile(), and SaveToFile().

◆ GetJson()

OPT< nlohmann::json > JSON_SETTINGS::GetJson ( const std::string &  aPath) const

Fetches a JSON object that is a subset of this JSON_SETTINGS object, using a path of the form "key1.key2.key3" to refer to nested objects.

Parameters
aPathis a string containing one or more keys separated by '.'
Returns
a JSON object from within this one

Definition at line 417 of file json_settings.cpp.

418 {
419  nlohmann::json::json_pointer ptr = PointerFromString( aPath );
420 
421  if( this->contains( ptr ) )
422  {
423  try
424  {
425  return OPT<nlohmann::json>{ this->at( ptr ) };
426  }
427  catch( ... )
428  {
429  }
430  }
431 
432  return OPT<nlohmann::json>{};
433 }
bool contains(const _Container &__container, _Value __value)
Returns true if the container contains the given value.
Definition: kicad_algo.h:81
boost::optional< T > OPT
Definition: optional.h:7
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References alg::contains(), and PointerFromString().

Referenced by Get(), PARAM_LAMBDA< nlohmann::json >::Load(), PARAM_LIST< wxString >::Load(), PARAM_MAP< Value >::Load(), PARAM_WXSTRING_MAP::Load(), PARAM_LAMBDA< nlohmann::json >::MatchesFile(), PARAM_LIST< wxString >::MatchesFile(), PARAM_PATH_LIST::MatchesFile(), PARAM_MAP< Value >::MatchesFile(), and PARAM_WXSTRING_MAP::MatchesFile().

◆ getLegacyFileExt()

virtual wxString JSON_SETTINGS::getLegacyFileExt ( ) const
inlineprotectedvirtual

Reimplemented in PROJECT_FILE, and PROJECT_LOCAL_SETTINGS.

Definition at line 279 of file json_settings.h.

280  {
281  return wxEmptyString;
282  }

Referenced by LoadFromFile().

◆ GetLocation()

SETTINGS_LOC JSON_SETTINGS::GetLocation ( ) const
inline

Definition at line 70 of file json_settings.h.

70 { return m_location; }
SETTINGS_LOC m_location
The location of this settings file (.

References m_location.

Referenced by SETTINGS_MANAGER::GetPathForSettingsFile().

◆ IsReadOnly()

bool JSON_SETTINGS::IsReadOnly ( ) const
inline

◆ Load()

void JSON_SETTINGS::Load ( )
virtual

Updates the parameters of this object based on the current JSON document contents.

Definition at line 85 of file json_settings.cpp.

86 {
87  for( auto param : m_params )
88  {
89  try
90  {
91  param->Load( this, m_resetParamsIfMissing );
92  }
93  catch( ... )
94  {
95  // Skip unreadable parameters in file
96  wxLogTrace( traceSettings, "param '%s' load err", param->GetJsonPath().c_str() );
97  }
98  }
99 }
std::vector< PARAM_BASE * > m_params
The list of parameters (owned by this object)
bool m_resetParamsIfMissing
Whether or not to set parameters to their default value if missing from JSON on Load()
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.

References m_params, m_resetParamsIfMissing, and traceSettings.

Referenced by COLOR_SETTINGS::CreateBuiltinColorSettings(), NESTED_SETTINGS::LoadFromFile(), LoadFromFile(), BOARD_DESIGN_SETTINGS::LoadFromFile(), COLOR_SETTINGS::migrateSchema0to1(), and SETTINGS_MANAGER::SaveColorSettings().

◆ LoadFromFile()

bool JSON_SETTINGS::LoadFromFile ( const wxString &  aDirectory = "")
virtual

Loads the backing file from disk and then calls Load()

Parameters
aDirectoryis the path to the file
Returns
true if the file was found on disk and loaded or migrated

Reimplemented in BOARD_DESIGN_SETTINGS, and NESTED_SETTINGS.

Definition at line 102 of file json_settings.cpp.

103 {
104  // First, load all params to default values
105  clear();
106  Load();
107 
108  bool success = true;
109  bool migrated = false;
110  bool legacy_migrated = false;
111 
112  LOCALE_IO locale;
113 
114  auto migrateFromLegacy = [&] ( wxFileName& aPath ) {
115  // Backup and restore during migration so that the original can be mutated if convenient
116  bool backed_up = false;
117  wxFileName temp;
118 
119  if( aPath.IsDirWritable() )
120  {
121  temp.AssignTempFileName( aPath.GetFullPath() );
122 
123  if( !wxCopyFile( aPath.GetFullPath(), temp.GetFullPath() ) )
124  {
125  wxLogTrace( traceSettings, "%s: could not create temp file for migration",
126  GetFullFilename() );
127  }
128  else
129  backed_up = true;
130  }
131 
132  wxConfigBase::DontCreateOnDemand();
133  auto cfg = std::make_unique<wxFileConfig>( wxT( "" ), wxT( "" ), aPath.GetFullPath() );
134 
135  // If migrate fails or is not implemented, fall back to built-in defaults that were
136  // already loaded above
137  if( !MigrateFromLegacy( cfg.get() ) )
138  {
139  wxLogTrace( traceSettings,
140  "%s: migrated; not all settings were found in legacy file",
141  GetFullFilename() );
142  }
143  else
144  {
145  wxLogTrace( traceSettings, "%s: migrated from legacy format", GetFullFilename() );
146  }
147 
148  if( backed_up )
149  {
150  cfg.reset();
151 
152  if( !wxCopyFile( temp.GetFullPath(), aPath.GetFullPath() ) )
153  {
154  wxLogTrace( traceSettings,
155  "migrate; copy temp file %s to %s failed",
156  temp.GetFullPath(), aPath.GetFullPath() );
157  }
158 
159  if( !wxRemoveFile( temp.GetFullPath() ) )
160  {
161  wxLogTrace( traceSettings,
162  "migrate; failed to remove temp file %s",
163  temp.GetFullPath() );
164  }
165  }
166 
167  // Either way, we want to clean up the old file afterwards
168  legacy_migrated = true;
169  };
170 
171  wxFileName path;
172 
173  if( aDirectory.empty() )
174  {
175  path.Assign( m_filename );
176  path.SetExt( getFileExt() );
177  }
178  else
179  {
180  wxString dir( aDirectory );
181  path.Assign( dir, m_filename, getFileExt() );
182  }
183 
184  if( !path.Exists() )
185  {
186  // Case 1: legacy migration, no .json extension yet
187  path.SetExt( getLegacyFileExt() );
188 
189  if( path.Exists() )
190  {
191  migrateFromLegacy( path );
192  }
193  // Case 2: legacy filename is different from new one
194  else if( !m_legacy_filename.empty() )
195  {
196  path.SetName( m_legacy_filename );
197 
198  if( path.Exists() )
199  migrateFromLegacy( path );
200  }
201  else
202  {
203  success = false;
204  }
205  }
206  else
207  {
208  if( !path.IsFileWritable() )
209  m_writeFile = false;
210 
211  try
212  {
213  FILE* fp = wxFopen( path.GetFullPath(), wxT( "rt" ) );
214 
215  if( fp )
216  {
217  *static_cast<nlohmann::json*>( this ) = nlohmann::json::parse( fp, nullptr,
218  /* allow_exceptions = */ true,
219  /* ignore_comments = */ true );
220 
221  // If parse succeeds, check if schema migration is required
222  int filever = -1;
223 
224  try
225  {
226  filever = at( PointerFromString( "meta.version" ) ).get<int>();
227  }
228  catch( ... )
229  {
230  wxLogTrace( traceSettings, "%s: file version could not be read!",
231  GetFullFilename() );
232  success = false;
233  }
234 
235  if( filever >= 0 && filever < m_schemaVersion )
236  {
237  wxLogTrace( traceSettings, "%s: attempting migration from version %d to %d",
238  GetFullFilename(), filever, m_schemaVersion );
239 
240  if( Migrate() )
241  {
242  migrated = true;
243  }
244  else
245  {
246  wxLogTrace( traceSettings, "%s: migration failed!", GetFullFilename() );
247  }
248  }
249  else if( filever > m_schemaVersion )
250  {
251  wxLogTrace( traceSettings,
252  "%s: warning: file version %d is newer than latest (%d)",
253  GetFullFilename(), filever, m_schemaVersion );
254  }
255  }
256  else
257  {
258  wxLogTrace( traceSettings, "%s exists but can't be opened for read",
259  GetFullFilename() );
260  }
261  }
262  catch( nlohmann::json::parse_error& error )
263  {
264  wxLogTrace( traceSettings, "Json parse error reading %s: %s",
265  path.GetFullPath(), error.what() );
266  wxLogTrace( traceSettings, "Attempting migration in case file is in legacy format" );
267  migrateFromLegacy( path );
268  }
269  }
270 
271  // Now that we have new data in the JSON structure, load the params again
272  Load();
273 
274  // And finally load any nested settings
275  for( auto settings : m_nested_settings )
276  settings->LoadFromFile();
277 
278  wxLogTrace( traceSettings, "Loaded <%s> with schema %d", GetFullFilename(), m_schemaVersion );
279 
280  // If we migrated, clean up the legacy file (with no extension)
281  if( legacy_migrated || migrated )
282  {
283  if( legacy_migrated && m_deleteLegacyAfterMigration && !wxRemoveFile( path.GetFullPath() ) )
284  {
285  wxLogTrace( traceSettings, "Warning: could not remove legacy file %s",
286  path.GetFullPath() );
287  }
288 
289  // And write-out immediately so that we don't lose data if the program later crashes.
290  SaveToFile( aDirectory, true );
291  }
292 
293  return success;
294 }
Instantiate the current locale within a scope in which you are expecting exceptions to be thrown.
Definition: locale_io.h:40
virtual wxString getLegacyFileExt() const
bool parse(std::istream &aStream, bool aVerbose)
Parse a PCB or footprint file from the given input stream.
wxString GetFullFilename() const
bool m_deleteLegacyAfterMigration
Whether or not to delete legacy file after migration.
wxString m_filename
The filename (not including path) of this settings file (inicode)
bool Migrate()
Migrates the schema of this settings from the version in the file to the latest version.
virtual bool SaveToFile(const wxString &aDirectory="", bool aForce=false)
wxString m_legacy_filename
The filename of the wxConfig legacy file (if different from m_filename)
std::vector< NESTED_SETTINGS * > m_nested_settings
Nested settings files that live inside this one, if any.
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.
virtual wxString getFileExt() const
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.
virtual bool MigrateFromLegacy(wxConfigBase *aLegacyConfig)
Migrates from wxConfig to JSON-based configuration.
int m_schemaVersion
Version of this settings schema.
virtual void Load()
Updates the parameters of this object based on the current JSON document contents.
bool m_writeFile
Whether or not the backing store file should be written.

References getFileExt(), GetFullFilename(), getLegacyFileExt(), Load(), m_deleteLegacyAfterMigration, m_filename, m_legacy_filename, m_nested_settings, m_schemaVersion, m_writeFile, Migrate(), MigrateFromLegacy(), parse(), PointerFromString(), SaveToFile(), and traceSettings.

Referenced by SETTINGS_MANAGER::SaveColorSettings().

◆ Migrate()

bool JSON_SETTINGS::Migrate ( )

Migrates the schema of this settings from the version in the file to the latest version.

Schema migration doesn't need to be used every time a setting is added! This is intended to be more of an "escape hatch" in the event that we decide to move settings around or make other changes to a settings file format that can't simply be handled by loading a new default

Returns
true if migration was successful

Definition at line 445 of file json_settings.cpp.

446 {
447  int filever = at( PointerFromString( "meta.version" ) ).get<int>();
448 
449  while( filever < m_schemaVersion )
450  {
451  if( !m_migrators.count( filever ) )
452  {
453  wxLogTrace( traceSettings, "Migrator missing for %s version %d!",
454  typeid( *this ).name(), filever );
455  return false;
456  }
457 
458  std::pair<int, std::function<bool()>> pair = m_migrators.at( filever );
459 
460  if( pair.second() )
461  {
462  wxLogTrace( traceSettings, "Migrated %s from %d to %d", typeid( *this ).name(),
463  filever, pair.first );
464  filever = pair.first;
465  ( *this )[PointerFromString( "meta.version" )] = filever;
466  }
467  else
468  {
469  wxLogTrace( traceSettings, "Migration failed for %s from %d to %d",
470  typeid( *this ).name(), filever, pair.first );
471  return false;
472  }
473  }
474 
475  return true;
476 }
std::map< int, std::pair< int, std::function< bool()> > > m_migrators
A map of starting schema version to a pair of <ending version, migrator function>
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.
int m_schemaVersion
Version of this settings schema.

References m_migrators, m_schemaVersion, PointerFromString(), and traceSettings.

Referenced by NESTED_SETTINGS::LoadFromFile(), and LoadFromFile().

◆ MigrateFromLegacy()

bool JSON_SETTINGS::MigrateFromLegacy ( wxConfigBase *  aLegacyConfig)
virtual

Migrates from wxConfig to JSON-based configuration.

Should be implemented by any subclasses of JSON_SETTINGS that map to a legacy (wxConfig-based) config file.

Parameters
aLegacyConfigis a wxConfigBase holding a loaded configuration to migrate
Returns
true if migration was successful

Reimplemented in PCBNEW_SETTINGS, EESCHEMA_SETTINGS, APP_SETTINGS_BASE, PCB_CALCULATOR_SETTINGS, COMMON_SETTINGS, EDA_3D_VIEWER_SETTINGS, PROJECT_FILE, COLOR_SETTINGS, PROJECT_LOCAL_SETTINGS, SYMBOL_EDITOR_SETTINGS, GERBVIEW_SETTINGS, FOOTPRINT_EDITOR_SETTINGS, CVPCB_SETTINGS, BITMAP2CMP_SETTINGS, PL_EDITOR_SETTINGS, and KICAD_SETTINGS.

Definition at line 479 of file json_settings.cpp.

480 {
481  wxLogTrace( traceSettings,
482  "MigrateFromLegacy() not implemented for %s", typeid( *this ).name() );
483  return false;
484 }
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.

References traceSettings.

Referenced by LoadFromFile().

◆ PointerFromString()

nlohmann::json::json_pointer JSON_SETTINGS::PointerFromString ( std::string  aPath)
static

Builds a JSON pointer based on a given string.

Parameters
aPathis the path in the form "key1.key2.key3"
Returns
a JSON pointer that can be used to index into a JSON object

Definition at line 487 of file json_settings.cpp.

488 {
489  std::replace( aPath.begin(), aPath.end(), '.', '/' );
490  aPath.insert( 0, "/" );
491 
492  nlohmann::json::json_pointer p;
493 
494  try
495  {
496  p = nlohmann::json::json_pointer( aPath );
497  }
498  catch( ... )
499  {
500  wxASSERT_MSG( false, wxT( "Invalid pointer path in PointerFromString!" ) );
501  }
502 
503  return p;
504 }

Referenced by fromLegacy(), fromLegacyColor(), fromLegacyString(), GetJson(), JSON_SETTINGS(), NESTED_SETTINGS::LoadFromFile(), LoadFromFile(), BOARD_DESIGN_SETTINGS::LoadFromFile(), Migrate(), APP_SETTINGS_BASE::migrateFindReplace(), FOOTPRINT_EDITOR_SETTINGS::MigrateFromLegacy(), GERBVIEW_SETTINGS::MigrateFromLegacy(), PROJECT_FILE::MigrateFromLegacy(), EDA_3D_VIEWER_SETTINGS::MigrateFromLegacy(), COMMON_SETTINGS::MigrateFromLegacy(), PCB_CALCULATOR_SETTINGS::MigrateFromLegacy(), APP_SETTINGS_BASE::MigrateFromLegacy(), EESCHEMA_SETTINGS::MigrateFromLegacy(), PCBNEW_SETTINGS::MigrateFromLegacy(), SETTINGS_MANAGER::SaveColorSettings(), NESTED_SETTINGS::SaveToFile(), PROJECT_LOCAL_SETTINGS::SaveToFile(), PROJECT_FILE::SaveToFile(), Set(), and SetIfPresent().

◆ registerMigration()

void JSON_SETTINGS::registerMigration ( int  aOldSchemaVersion,
int  aNewSchemaVersion,
std::function< bool(void)>  aMigrator 
)
protected

Registers a migration from one schema version to another.

If the schema version in the file loaded from disk is less than the schema version of the JSON_SETTINGS class, migration functions will be called one after the other until the data is up-to-date.

Parameters
aOldSchemaVersionis the starting schema version for this migration
aNewSchemaVersionis the ending schema version for this migration
aMigratoris a function that performs the migration and returns true if successful

Definition at line 436 of file json_settings.cpp.

438 {
439  wxASSERT( aNewSchemaVersion > aOldSchemaVersion );
440  wxASSERT( aNewSchemaVersion <= m_schemaVersion );
441  m_migrators[aOldSchemaVersion] = std::make_pair( aNewSchemaVersion, aMigrator );
442 }
std::map< int, std::pair< int, std::function< bool()> > > m_migrators
A map of starting schema version to a pair of <ending version, migrator function>
int m_schemaVersion
Version of this settings schema.

References m_migrators, and m_schemaVersion.

Referenced by BOARD_DESIGN_SETTINGS::BOARD_DESIGN_SETTINGS(), COLOR_SETTINGS::COLOR_SETTINGS(), COMMON_SETTINGS::COMMON_SETTINGS(), FOOTPRINT_EDITOR_SETTINGS::FOOTPRINT_EDITOR_SETTINGS(), and PROJECT_LOCAL_SETTINGS::PROJECT_LOCAL_SETTINGS().

◆ ReleaseNestedSettings()

void JSON_SETTINGS::ReleaseNestedSettings ( NESTED_SETTINGS aSettings)

Saves and frees a nested settings object, if it exists within this one.

Parameters
aSettingsis a pointer to a NESTED_SETTINGS that has already been added to this one

Definition at line 663 of file json_settings.cpp.

664 {
665  if( !aSettings )
666  return;
667 
668  auto it = std::find_if( m_nested_settings.begin(), m_nested_settings.end(),
669  [&aSettings]( const JSON_SETTINGS* aPtr ) {
670  return aPtr == aSettings;
671  } );
672 
673  if( it != m_nested_settings.end() )
674  {
675  wxLogTrace( traceSettings, "Flush and release %s", ( *it )->GetFilename() );
676  ( *it )->SaveToFile();
677  m_nested_settings.erase( it );
678  }
679 
680  aSettings->SetParent( nullptr );
681 }
std::vector< NESTED_SETTINGS * > m_nested_settings
Nested settings files that live inside this one, if any.
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.
void SetParent(JSON_SETTINGS *aParent)

References m_nested_settings, NESTED_SETTINGS::SetParent(), and traceSettings.

Referenced by BOARD::ClearProject(), BOARD_DESIGN_SETTINGS::~BOARD_DESIGN_SETTINGS(), ERC_SETTINGS::~ERC_SETTINGS(), NESTED_SETTINGS::~NESTED_SETTINGS(), NET_SETTINGS::~NET_SETTINGS(), and SCHEMATIC_SETTINGS::~SCHEMATIC_SETTINGS().

◆ ResetToDefaults()

void JSON_SETTINGS::ResetToDefaults ( )

Resets all parameters to default values.

Does NOT write to file or update underlying JSON.

Definition at line 311 of file json_settings.cpp.

312 {
313  for( auto param : m_params )
314  param->SetDefault();
315 }
std::vector< PARAM_BASE * > m_params
The list of parameters (owned by this object)

References m_params.

Referenced by EDA_3D_VIEWER::Process_Special_Functions(), PANEL_COMMON_SETTINGS::ResetPanel(), and PANEL_MOUSE_SETTINGS::ResetPanel().

◆ SaveToFile()

bool JSON_SETTINGS::SaveToFile ( const wxString &  aDirectory = "",
bool  aForce = false 
)
virtual
   Calls Store() and then writes the contents of the JSON document to a file
   @param aDirectory is the directory to save to, including trailing separator

c *

Returns
true if the file was saved

Reimplemented in PROJECT_FILE, PROJECT_LOCAL_SETTINGS, and NESTED_SETTINGS.

Definition at line 318 of file json_settings.cpp.

319 {
320  if( !m_writeFile )
321  return false;
322 
323  // Default PROJECT won't have a filename set
324  if( m_filename.IsEmpty() )
325  return false;
326 
327  wxFileName path;
328 
329  if( aDirectory.empty() )
330  {
331  path.Assign( m_filename );
332  path.SetExt( getFileExt() );
333  }
334  else
335  {
336  wxString dir( aDirectory );
337  path.Assign( dir, m_filename, getFileExt() );
338  }
339 
340  if( !m_createIfMissing && !path.FileExists() )
341  {
342  wxLogTrace( traceSettings,
343  "File for %s doesn't exist and m_createIfMissing == false; not saving",
344  GetFullFilename() );
345  return false;
346  }
347 
348  // Ensure the path exists, and create it if not.
349  if( !path.DirExists() && !path.Mkdir() )
350  {
351  wxLogTrace( traceSettings, "Warning: could not create path %s, can't save %s",
352  path.GetPath(), GetFullFilename() );
353  return false;
354  }
355 
356  if( ( path.FileExists() && !path.IsFileWritable() ) ||
357  ( !path.FileExists() && !path.IsDirWritable() ) )
358  {
359  wxLogTrace( traceSettings, "File for %s is read-only; not saving", GetFullFilename() );
360  return false;
361  }
362 
363  bool modified = false;
364 
365  for( auto settings : m_nested_settings )
366  modified |= settings->SaveToFile();
367 
368  modified |= Store();
369 
370  if( !modified && !aForce && path.FileExists() )
371  {
372  wxLogTrace( traceSettings, "%s contents not modified, skipping save", GetFullFilename() );
373  return false;
374  }
375  else if( !modified && !aForce && !m_createIfDefault )
376  {
377  wxLogTrace( traceSettings,
378  "%s contents still default and m_createIfDefault == false; not saving",
379  GetFullFilename() );
380  return false;
381  }
382 
383  wxLogTrace( traceSettings, "Saving %s", GetFullFilename() );
384 
386  bool success = true;
387 
388  try
389  {
390  std::stringstream buffer;
391  buffer << std::setw( 2 ) << *this << std::endl;
392 
393  wxFile file( path.GetFullPath(), wxFile::write );
394 
395  if( !file.IsOpened() || !file.Write( buffer.str().c_str(), buffer.str().size() ) )
396  {
397  wxLogTrace( traceSettings, "Warning: could not save %s", GetFullFilename() );
398  success = false;
399  }
400  }
401  catch( nlohmann::json::exception& error )
402  {
403  wxLogTrace( traceSettings, "Catch error: could not save %s. Json error %s",
404  GetFullFilename(), error.what() );
405  success = false;
406  }
407  catch( ... )
408  {
409  wxLogTrace( traceSettings, "Error: could not save %s." );
410  success = false;
411  }
412 
413  return success;
414 }
virtual bool Store()
Stores the current parameters into the JSON document represented by this object Note: this doesn't do...
Instantiate the current locale within a scope in which you are expecting exceptions to be thrown.
Definition: locale_io.h:40
bool m_createIfMissing
Whether or not the backing store file should be created it if doesn't exist.
wxString GetFullFilename() const
wxString m_filename
The filename (not including path) of this settings file (inicode)
std::vector< NESTED_SETTINGS * > m_nested_settings
Nested settings files that live inside this one, if any.
static LIB_PART * dummy()
Used to draw a dummy shape when a LIB_PART is not found in library.
const wxChar *const traceSettings
Flag to enable debug output of settings operations and management.
bool m_createIfDefault
Whether or not the backing store file should be created if all parameters are still at their default ...
virtual wxString getFileExt() const
bool m_writeFile
Whether or not the backing store file should be written.

References dummy(), getFileExt(), GetFullFilename(), m_createIfDefault, m_createIfMissing, m_filename, m_nested_settings, m_writeFile, Store(), and traceSettings.

Referenced by LoadFromFile(), PANEL_COLOR_SETTINGS::OnThemeChanged(), SETTINGS_MANAGER::SaveColorSettings(), PROJECT_LOCAL_SETTINGS::SaveToFile(), PROJECT_FILE::SaveToFile(), and PGM_BASE::SetLanguage().

◆ Set() [1/3]

template<typename ValueType >
void JSON_SETTINGS::Set ( const std::string &  aPath,
ValueType  aVal 
)
inline

Stores a value into the JSON document Will throw an exception if ValueType isn't something that the library can handle.

Template Parameters
ValueTypeis the type to store
Parameters
aPathis a path to store in the form "key1.key2.key3"
aValis the value to store

Definition at line 148 of file json_settings.h.

149  {
150  ( *this )[PointerFromString( aPath ) ] = aVal;
151  }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

Referenced by COLOR_MAP_PARAM::Store(), PARAM< wxString >::Store(), PARAM_PATH::Store(), PARAM_ENUM< EnumType >::Store(), PARAM_LAMBDA< nlohmann::json >::Store(), PARAM_SCALED< ValueType >::Store(), PARAM_LIST< wxString >::Store(), PARAM_PATH_LIST::Store(), PARAM_MAP< Value >::Store(), and PARAM_WXSTRING_MAP::Store().

◆ Set() [2/3]

template<>
void JSON_SETTINGS::Set ( const std::string &  aPath,
wxString  aVal 
)

◆ Set() [3/3]

template<>
void JSON_SETTINGS::Set ( const std::string &  aPath,
wxString  aVal 
)

Definition at line 695 of file json_settings.cpp.

696 {
697  ( *this )[PointerFromString( std::move( aPath ) ) ] = aVal.ToUTF8();
698 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

◆ SetFilename()

void JSON_SETTINGS::SetFilename ( const wxString &  aFilename)
inline

Definition at line 68 of file json_settings.h.

68 { m_filename = aFilename; }
wxString m_filename
The filename (not including path) of this settings file (inicode)

References m_filename.

Referenced by SETTINGS_MANAGER::SaveProjectAs().

◆ SetIfPresent() [1/4]

bool JSON_SETTINGS::SetIfPresent ( const nlohmann::json aObj,
const std::string &  aPath,
wxString &  aTarget 
)
static

Sets the given string if the given key/path is present.

Parameters
aObjis the source object
aTargetis the storage destination
Returns
True if set, false if not

Definition at line 507 of file json_settings.cpp.

509 {
510  nlohmann::json::json_pointer ptr = PointerFromString( aPath );
511 
512  if( aObj.contains( ptr ) && aObj.at( ptr ).is_string() )
513  {
514  aTarget = aObj.at( ptr ).get<wxString>();
515  return true;
516  }
517 
518  return false;
519 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

Referenced by FOOTPRINT_EDITOR_SETTINGS::FOOTPRINT_EDITOR_SETTINGS(), and PROJECT_LOCAL_SETTINGS::PROJECT_LOCAL_SETTINGS().

◆ SetIfPresent() [2/4]

bool JSON_SETTINGS::SetIfPresent ( const nlohmann::json aObj,
const std::string &  aPath,
bool &  aTarget 
)
static

Sets the given bool if the given key/path is present.

Parameters
aObjis the source object
aTargetis the storage destination
Returns
True if set, false if not

Definition at line 522 of file json_settings.cpp.

524 {
525  nlohmann::json::json_pointer ptr = PointerFromString( aPath );
526 
527  if( aObj.contains( ptr ) && aObj.at( ptr ).is_boolean() )
528  {
529  aTarget = aObj.at( ptr ).get<bool>();
530  return true;
531  }
532 
533  return false;
534 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

◆ SetIfPresent() [3/4]

bool JSON_SETTINGS::SetIfPresent ( const nlohmann::json aObj,
const std::string &  aPath,
int &  aTarget 
)
static

Sets the given int if the given key/path is present.

Parameters
aObjis the source object
aTargetis the storage destination
Returns
True if set, false if not

Definition at line 537 of file json_settings.cpp.

539 {
540  nlohmann::json::json_pointer ptr = PointerFromString( aPath );
541 
542  if( aObj.contains( ptr ) && aObj.at( ptr ).is_number_integer() )
543  {
544  aTarget = aObj.at( ptr ).get<int>();
545  return true;
546  }
547 
548  return false;
549 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

◆ SetIfPresent() [4/4]

bool JSON_SETTINGS::SetIfPresent ( const nlohmann::json aObj,
const std::string &  aPath,
unsigned int &  aTarget 
)
static

Sets the given unsigned int if the given key/path is present.

Parameters
aObjis the source object
aTargetis the storage destination
Returns
True if set, false if not

Definition at line 552 of file json_settings.cpp.

554 {
555  nlohmann::json::json_pointer ptr = PointerFromString( aPath );
556 
557  if( aObj.contains( ptr ) && aObj.at( ptr ).is_number_unsigned() )
558  {
559  aTarget = aObj.at( ptr ).get<unsigned int>();
560  return true;
561  }
562 
563  return false;
564 }
static nlohmann::json::json_pointer PointerFromString(std::string aPath)
Builds a JSON pointer based on a given string.

References PointerFromString().

◆ SetLegacyFilename()

void JSON_SETTINGS::SetLegacyFilename ( const wxString &  aFilename)
inline

Definition at line 72 of file json_settings.h.

72 { m_legacy_filename = aFilename; }
wxString m_legacy_filename
The filename of the wxConfig legacy file (if different from m_filename)

References m_legacy_filename.

Referenced by SYMBOL_EDITOR_SETTINGS::SYMBOL_EDITOR_SETTINGS().

◆ SetManager()

void JSON_SETTINGS::SetManager ( SETTINGS_MANAGER aManager)
inline

Definition at line 188 of file json_settings.h.

189  {
190  m_manager = aManager;
191  }
SETTINGS_MANAGER * m_manager
A pointer to the settings manager managing this file (may be null)

References m_manager.

◆ SetReadOnly()

void JSON_SETTINGS::SetReadOnly ( bool  aReadOnly)
inline

Definition at line 75 of file json_settings.h.

75 { m_writeFile = !aReadOnly; }
bool m_writeFile
Whether or not the backing store file should be written.

References m_writeFile.

Referenced by PANEL_COLOR_SETTINGS::OnThemeChanged().

◆ Store()

bool JSON_SETTINGS::Store ( )
virtual

Stores the current parameters into the JSON document represented by this object Note: this doesn't do any writing to disk; that's handled by SETTINGS_MANAGER.

Returns
true if any part of the JSON document was updated

Definition at line 297 of file json_settings.cpp.

298 {
299  bool modified = false;
300 
301  for( auto param : m_params )
302  {
303  modified |= !param->MatchesFile( this );
304  param->Store( this );
305  }
306 
307  return modified;
308 }
std::vector< PARAM_BASE * > m_params
The list of parameters (owned by this object)

References m_params.

Referenced by PANEL_FP_EDITOR_COLOR_SETTINGS::PANEL_FP_EDITOR_COLOR_SETTINGS(), SETTINGS_MANAGER::SaveColorSettings(), NESTED_SETTINGS::SaveToFile(), and SaveToFile().

Member Data Documentation

◆ m_createIfDefault

bool JSON_SETTINGS::m_createIfDefault
protected

Whether or not the backing store file should be created if all parameters are still at their default values.

Ignored if m_createIfMissing is false or m_writeFile is false.

Definition at line 306 of file json_settings.h.

Referenced by SaveToFile().

◆ m_createIfMissing

bool JSON_SETTINGS::m_createIfMissing
protected

Whether or not the backing store file should be created it if doesn't exist.

Definition at line 300 of file json_settings.h.

Referenced by SaveToFile().

◆ m_deleteLegacyAfterMigration

bool JSON_SETTINGS::m_deleteLegacyAfterMigration
protected

Whether or not to delete legacy file after migration.

Definition at line 312 of file json_settings.h.

Referenced by LoadFromFile(), and PROJECT_FILE::PROJECT_FILE().

◆ m_filename

wxString JSON_SETTINGS::m_filename
protected

◆ m_legacy_filename

wxString JSON_SETTINGS::m_legacy_filename
protected

The filename of the wxConfig legacy file (if different from m_filename)

Definition at line 288 of file json_settings.h.

Referenced by LoadFromFile(), and SetLegacyFilename().

◆ m_location

SETTINGS_LOC JSON_SETTINGS::m_location
protected

The location of this settings file (.

See also
SETTINGS_LOC)

Definition at line 291 of file json_settings.h.

Referenced by GetLocation().

◆ m_manager

SETTINGS_MANAGER* JSON_SETTINGS::m_manager
protected

A pointer to the settings manager managing this file (may be null)

Definition at line 321 of file json_settings.h.

Referenced by FOOTPRINT_EDITOR_SETTINGS::migrateSchema0to1(), COLOR_SETTINGS::migrateSchema0to1(), and SetManager().

◆ m_migrators

std::map<int, std::pair<int, std::function<bool()> > > JSON_SETTINGS::m_migrators
protected

A map of starting schema version to a pair of <ending version, migrator function>

Definition at line 327 of file json_settings.h.

Referenced by Migrate(), and registerMigration().

◆ m_nested_settings

std::vector<NESTED_SETTINGS*> JSON_SETTINGS::m_nested_settings
protected

Nested settings files that live inside this one, if any.

Definition at line 297 of file json_settings.h.

Referenced by AddNestedSettings(), LoadFromFile(), ReleaseNestedSettings(), and SaveToFile().

◆ m_params

◆ m_preserved_paths

std::vector<nlohmann::json::json_pointer> JSON_SETTINGS::m_preserved_paths
protected

A list of JSON pointers that are preserved during a read-update-write to disk.

Definition at line 324 of file json_settings.h.

◆ m_resetParamsIfMissing

bool JSON_SETTINGS::m_resetParamsIfMissing
protected

Whether or not to set parameters to their default value if missing from JSON on Load()

Definition at line 315 of file json_settings.h.

Referenced by BOARD_DESIGN_SETTINGS::BOARD_DESIGN_SETTINGS(), and Load().

◆ m_schemaVersion

int JSON_SETTINGS::m_schemaVersion
protected

Version of this settings schema.

Definition at line 318 of file json_settings.h.

Referenced by JSON_SETTINGS(), NESTED_SETTINGS::LoadFromFile(), LoadFromFile(), Migrate(), registerMigration(), and NESTED_SETTINGS::SaveToFile().

◆ m_writeFile

bool JSON_SETTINGS::m_writeFile
protected

Whether or not the backing store file should be written.

Definition at line 309 of file json_settings.h.

Referenced by COLOR_SETTINGS::CreateBuiltinColorSettings(), COLOR_SETTINGS::initFromOther(), IsReadOnly(), LoadFromFile(), SaveToFile(), and SetReadOnly().


The documentation for this class was generated from the following files: