src/common/xti.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/xti.cpp
   3 // Purpose:     runtime metadata information (extended class info
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     27/07/03
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1997 Julian Smart
   9 //              (c) 2003 Stefan Csomor
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifdef __GNUG__
  14 #pragma implementation "xti.h"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/hash.h"
  26     #include "wx/object.h"
  27 #endif
  28
  29 #include "wx/xml/xml.h"
  30 #include "wx/tokenzr.h"
  31
  32 #include <string.h>
  33
  34 #if wxUSE_EXTENDED_RTTI
  35
  36 // ----------------------------------------------------------------------------
  37 // Enum Support
  38 // ----------------------------------------------------------------------------
  39
  40 wxEnumData::wxEnumData( wxEnumMemberData* data )
  41 {
  42         m_members = data ;
  43     for ( m_count = 0; m_members[m_count].m_name ; m_count++)
  44                 {} ;
  45 }
  46
  47 bool wxEnumData::HasEnumMemberValue(const wxChar *name, int *value)
  48 {
  49     int i;
  50     for (i = 0; m_members[i].m_name ; i++ )
  51         {
  52                 if (!strcmp(name, m_members[i].m_name))
  53                 {
  54                         if ( value )
  55                                 *value = m_members[i].m_value;
  56                         return true ;
  57                 }
  58         }
  59         return false ;
  60 }
  61
  62 int wxEnumData::GetEnumMemberValue(const wxChar *name)
  63 {
  64     int i;
  65     for (i = 0; m_members[i].m_name ; i++ )
  66         {
  67                 if (!strcmp(name, m_members[i].m_name))
  68                 {
  69                         return m_members[i].m_value;
  70                 }
  71         }
  72     return 0 ;
  73 }
  74
  75 const wxChar *wxEnumData::GetEnumMemberName(int value)
  76 {
  77     int i;
  78     for (i = 0; m_members[i].m_name ; i++)
  79                 if (value == m_members[i].m_value)
  80                         return m_members[i].m_name;
  81
  82         return wxT("") ;
  83 }
  84
  85 int wxEnumData::GetEnumMemberValueByIndex( int idx )
  86 {
  87         // we should cache the count in order to avoid out-of-bounds errors
  88         return m_members[idx].m_value ;
  89 }
  90
  91 const char * wxEnumData::GetEnumMemberNameByIndex( int idx )
  92 {
  93         // we should cache the count in order to avoid out-of-bounds errors
  94         return m_members[idx].m_name ;
  95 }
  96
  97 // ----------------------------------------------------------------------------
  98 // Type Information
  99 // ----------------------------------------------------------------------------
 100
 101 template<> const wxTypeInfo* wxGetTypeInfo( void * )
 102 {
 103         static wxBuiltInTypeInfo s_typeInfo( wxT_VOID ) ;
 104         return &s_typeInfo ;
 105 }
 106
 107 template<> const wxTypeInfo* wxGetTypeInfo( bool * )
 108 {
 109         static wxBuiltInTypeInfo s_typeInfo( wxT_BOOL ) ;
 110         return &s_typeInfo ;
 111 }
 112
 113 template<> const wxTypeInfo* wxGetTypeInfo( char * )
 114 {
 115         static wxBuiltInTypeInfo s_typeInfo( wxT_CHAR ) ;
 116         return &s_typeInfo ;
 117 }
 118
 119 template<> const wxTypeInfo* wxGetTypeInfo( unsigned char * )
 120 {
 121         static wxBuiltInTypeInfo s_typeInfo( wxT_UCHAR ) ;
 122         return &s_typeInfo ;
 123 }
 124
 125 template<> const wxTypeInfo* wxGetTypeInfo( int * )
 126 {
 127         static wxBuiltInTypeInfo s_typeInfo( wxT_CHAR ) ;
 128         return &s_typeInfo ;
 129 }
 130
 131 template<> const wxTypeInfo* wxGetTypeInfo( unsigned int * )
 132 {
 133         static wxBuiltInTypeInfo s_typeInfo( wxT_UCHAR ) ;
 134         return &s_typeInfo ;
 135 }
 136
 137 template<> const wxTypeInfo* wxGetTypeInfo( long * )
 138 {
 139         static wxBuiltInTypeInfo s_typeInfo( wxT_CHAR ) ;
 140         return &s_typeInfo ;
 141 }
 142
 143 template<> const wxTypeInfo* wxGetTypeInfo( unsigned long * )
 144 {
 145         static wxBuiltInTypeInfo s_typeInfo( wxT_UCHAR ) ;
 146         return &s_typeInfo ;
 147 }
 148
 149 template<> const wxTypeInfo* wxGetTypeInfo( float * )
 150 {
 151         static wxBuiltInTypeInfo s_typeInfo( wxT_FLOAT ) ;
 152         return &s_typeInfo ;
 153 }
 154
 155 template<> const wxTypeInfo* wxGetTypeInfo( double * )
 156 {
 157         static wxBuiltInTypeInfo s_typeInfo( wxT_DOUBLE ) ;
 158         return &s_typeInfo ;
 159 }
 160
 161 template<> const wxTypeInfo* wxGetTypeInfo( wxString * )
 162 {
 163         static wxBuiltInTypeInfo s_typeInfo( wxT_STRING ) ;
 164         return &s_typeInfo ;
 165 }
 166
 167 // this are compiler induced specialization which are never used anywhere
 168
 169 // char const *
 170
 171 template<> const wxTypeInfo* wxGetTypeInfo( char const ** )
 172 {
 173         assert(0) ;
 174         static wxBuiltInTypeInfo s_typeInfo( wxT_VOID ) ;
 175         return &s_typeInfo ;
 176 }
 177
 178 template<> void wxStringReadValue(const wxString & , const char* & )
 179 {
 180         assert(0) ;
 181 }
 182
 183 template<> void wxStringWriteValue(wxString & , char const * const & )
 184 {
 185         assert(0) ;
 186 }
 187
 188 // char *
 189
 190 template<> const wxTypeInfo* wxGetTypeInfo( char ** )
 191 {
 192         assert(0) ;
 193         static wxBuiltInTypeInfo s_typeInfo( wxT_VOID ) ;
 194         return &s_typeInfo ;
 195 }
 196
 197 template<> void wxStringReadValue(const wxString & , char* & )
 198 {
 199         assert(0) ;
 200 }
 201
 202 template<> void wxStringWriteValue(wxString & , char * const & )
 203 {
 204         assert(0) ;
 205 }
 206
 207 // ----------------------------------------------------------------------------
 208 // value streaming
 209 // ----------------------------------------------------------------------------
 210
 211 // convenience function (avoids including xml headers in users code)
 212
 213 void wxXmlAddContentToNode( wxXmlNode* node , const wxString& data )
 214 {
 215         node->AddChild(new wxXmlNode(wxXML_TEXT_NODE, "value", data ) );
 216 }
 217
 218 wxString wxXmlGetContentFromNode( wxXmlNode *node )
 219 {
 220         if ( node->GetChildren() )
 221                 return node->GetChildren()->GetContent() ;
 222         else
 223                 return wxEmptyString ;
 224 }
 225
 226 // streamer specializations
 227 // for all built-in types
 228
 229 // bool
 230
 231 template<> void wxStringReadValue(const wxString &s , bool &data )
 232 {
 233         int intdata ;
 234         wxSscanf(s, _T("%d"), &intdata ) ;
 235         data = bool(intdata) ;
 236 }
 237
 238 template<> void wxStringWriteValue(wxString &s , const bool &data )
 239 {
 240         s = wxString::Format("%d", data ) ;
 241 }
 242
 243 // char
 244
 245 template<> void wxStringReadValue(const wxString &s , char &data )
 246 {
 247         int intdata ;
 248         wxSscanf(s, _T("%d"), &intdata ) ;
 249         data = char(intdata) ;
 250 }
 251
 252 template<> void wxStringWriteValue(wxString &s , const char &data )
 253 {
 254         s = wxString::Format("%d", data ) ;
 255 }
 256
 257 // unsigned char
 258
 259 template<> void wxStringReadValue(const wxString &s , unsigned char &data )
 260 {
 261         int intdata ;
 262         wxSscanf(s, _T("%d"), &intdata ) ;
 263         data = unsigned char(intdata) ;
 264 }
 265
 266 template<> void wxStringWriteValue(wxString &s , const unsigned char &data )
 267 {
 268         s = wxString::Format("%d", data ) ;
 269 }
 270
 271 // int
 272
 273 template<> void wxStringReadValue(const wxString &s , int &data )
 274 {
 275         wxSscanf(s, _T("%d"), &data ) ;
 276 }
 277
 278 template<> void wxStringWriteValue(wxString &s , const int &data )
 279 {
 280         s = wxString::Format("%d", data ) ;
 281 }
 282
 283 // unsigned int
 284
 285 template<> void wxStringReadValue(const wxString &s , unsigned int &data )
 286 {
 287         wxSscanf(s, _T("%d"), &data ) ;
 288 }
 289
 290 template<> void wxStringWriteValue(wxString &s , const unsigned int &data )
 291 {
 292         s = wxString::Format("%d", data ) ;
 293 }
 294
 295 // long
 296
 297 template<> void wxStringReadValue(const wxString &s , long &data )
 298 {
 299         wxSscanf(s, _T("%ld"), &data ) ;
 300 }
 301
 302 template<> void wxStringWriteValue(wxString &s , const long &data )
 303 {
 304         s = wxString::Format("%ld", data ) ;
 305 }
 306
 307 // unsigned long
 308
 309 template<> void wxStringReadValue(const wxString &s , unsigned long &data )
 310 {
 311         wxSscanf(s, _T("%ld"), &data ) ;
 312 }
 313
 314 template<> void wxStringWriteValue(wxString &s , const unsigned long &data )
 315 {
 316         s = wxString::Format("%ld", data ) ;
 317 }
 318
 319 // float
 320
 321 template<> void wxStringReadValue(const wxString &s , float &data )
 322 {
 323         wxSscanf(s, _T("%f"), &data ) ;
 324 }
 325
 326 template<> void wxStringWriteValue(wxString &s , const float &data )
 327 {
 328         s = wxString::Format("%f", data ) ;
 329 }
 330
 331 // double
 332
 333 template<> void wxStringReadValue(const wxString &s , double &data )
 334 {
 335         wxSscanf(s, _T("%lf"), &data ) ;
 336 }
 337
 338 template<> void wxStringWriteValue(wxString &s , const double &data )
 339 {
 340         s = wxString::Format("%lf", data ) ;
 341 }
 342
 343 // wxString
 344
 345 template<> void wxStringReadValue(const wxString &s , wxString &data )
 346 {
 347         data = s ;
 348 }
 349
 350 template<> void wxStringWriteValue(wxString &s , const wxString &data )
 351 {
 352         s = data ;
 353 }
 354
 355 /*
 356         Custom Data Streaming / Type Infos
 357         we will have to add this for all wx non object types, but it is also an example
 358         for custom data structures
 359 */
 360
 361 // wxPoint
 362
 363 template<> void wxStringReadValue(const wxString &s , wxPoint &data )
 364 {
 365         wxSscanf(s, _T("%d,%d"), &data.x , &data.y ) ;
 366 }
 367
 368 template<> void wxStringWriteValue(wxString &s , const wxPoint &data )
 369 {
 370         s = wxString::Format("%d,%d", data.x , data.y ) ;
 371 }
 372
 373 WX_CUSTOM_TYPE_INFO(wxPoint)
 374
 375 template<> void wxStringReadValue(const wxString &s , wxSize &data )
 376 {
 377         wxSscanf(s, _T("%d,%d"), &data.x , &data.y ) ;
 378 }
 379
 380 template<> void wxStringWriteValue(wxString &s , const wxSize &data )
 381 {
 382         s = wxString::Format("%d,%d", data.x , data.y ) ;
 383 }
 384
 385 WX_CUSTOM_TYPE_INFO(wxSize)
 386
 387 /*
 388
 389 template<> void wxStringReadValue(const wxString &s , wxColour &data )
 390 {
 391         // copied from VS xrc
 392         unsigned long tmp = 0;
 393
 394     if (s.Length() != 7 || s[0u] != wxT('#') ||
 395         wxSscanf(s.c_str(), wxT("#%lX"), &tmp) != 1)
 396     {
 397                 wxLogError(_("String To Colour : Incorrect colour specification : %s"),
 398                    s.c_str() );
 399         data = wxNullColour;
 400     }
 401         else
 402         {
 403                 data = wxColour((unsigned char) ((tmp & 0xFF0000) >> 16) ,
 404                     (unsigned char) ((tmp & 0x00FF00) >> 8),
 405                     (unsigned char) ((tmp & 0x0000FF)));
 406         }
 407 }
 408
 409 template<> void wxStringWriteValue(wxString &s , const wxColour &data )
 410 {
 411         s = wxString::Format("#%2X%2X%2X", data.Red() , data.Green() , data.Blue() ) ;
 412 }
 413
 414 WX_CUSTOM_TYPE_INFO(wxColour)
 415
 416 */
 417
 418 // removing header dependancy on string tokenizer
 419
 420 void wxSetStringToArray( const wxString &s , wxArrayString &array )
 421 {
 422     wxStringTokenizer tokenizer(s, wxT("| \t\n"), wxTOKEN_STRTOK);
 423     wxString flag;
 424         array.Clear() ;
 425     while (tokenizer.HasMoreTokens())
 426     {
 427                 array.Add(tokenizer.GetNextToken()) ;
 428         }
 429 }
 430
 431 // ----------------------------------------------------------------------------
 432 // wxClassInfo
 433 // ----------------------------------------------------------------------------
 434
 435
 436 void wxClassInfo::Register(const char *WXUNUSED(name), wxClassInfo *WXUNUSED(info))
 437 {
 438         /*
 439     if (!ExtendedTypeMap)
 440         ExtendedTypeMap = new ClassMap;
 441     (*ExtendedTypeMap)[string(Name)] = Info;
 442         */
 443 }
 444
 445 void wxClassInfo::Unregister(const char *WXUNUSED(name))
 446 {
 447         /*
 448     assert(ExtendedTypeMap);
 449     ExtendedTypeMap->erase(Name);
 450         */
 451 }
 452
 453 const wxPropertyAccessor *wxClassInfo::FindAccessor(const char *PropertyName)
 454 {
 455     const wxPropertyInfo* info = FindPropertyInfo( PropertyName ) ;
 456
 457         if ( info )
 458                 return info->GetAccessor() ;
 459
 460         return NULL ;
 461 }
 462
 463 const wxPropertyInfo *wxClassInfo::FindPropertyInfo (const char *PropertyName) const
 464 {
 465         const wxPropertyInfo* info = GetFirstProperty() ;
 466
 467         while( info )
 468         {
 469                 if ( strcmp( info->GetName() , PropertyName ) == 0 )
 470                         return info ;
 471                 info = info->GetNext() ;
 472         }
 473
 474         const wxClassInfo** parents = GetParents() ;
 475         for ( int i = 0 ; parents[i] ; ++ i )
 476         {
 477                 if ( ( info = parents[i]->FindPropertyInfo( PropertyName ) ) != NULL )
 478                         return info ;
 479         }
 480
 481     return 0;
 482 }
 483
 484 const wxHandlerInfo *wxClassInfo::FindHandlerInfo (const char *PropertyName) const
 485 {
 486         const wxHandlerInfo* info = GetFirstHandler() ;
 487
 488         while( info )
 489         {
 490                 if ( strcmp( info->GetName() , PropertyName ) == 0 )
 491                         return info ;
 492                 info = info->GetNext() ;
 493         }
 494
 495         const wxClassInfo** parents = GetParents() ;
 496         for ( int i = 0 ; parents[i] ; ++ i )
 497         {
 498                 if ( ( info = parents[i]->FindHandlerInfo( PropertyName ) ) != NULL )
 499                         return info ;
 500         }
 501
 502     return 0;
 503 }
 504
 505
 506 void wxClassInfo::SetProperty(wxObject *object, const char *propertyName, const wxxVariant &value)
 507 {
 508     const wxPropertyAccessor *accessor;
 509
 510     accessor = FindAccessor(propertyName);
 511     wxASSERT(accessor->HasSetter());
 512         accessor->SetProperty( object , value ) ;
 513 }
 514
 515 wxxVariant wxClassInfo::GetProperty(wxObject *object, const char *propertyName)
 516 {
 517     const wxPropertyAccessor *accessor;
 518
 519     accessor = FindAccessor(propertyName);
 520     wxASSERT(accessor->HasGetter());
 521     return accessor->GetProperty(object);
 522 }
 523
 524 /*
 525 VARIANT TO OBJECT
 526 */
 527
 528 wxObject* wxxVariant::GetAsObject()
 529 {
 530         const wxClassTypeInfo *ti = dynamic_cast<const wxClassTypeInfo*>( m_data->GetTypeInfo() ) ;
 531         if ( ti )
 532                 return ti->GetClassInfo()->VariantToInstance(*this) ;
 533         else
 534                 return NULL ;
 535 }
 536
 537
 538 #endif