src/common/variant.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        variant.cpp
   3 // Purpose:     wxVariant class, container for any type
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     10/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "variant.h"
  14 #pragma implementation "time.h"
  15 #pragma implementation "date.h"
  16 #endif
  17
  18 // For compilers that support precompilation, includes "wx/wx.h".
  19 #include "wx/wxprec.h"
  20
  21 #ifdef __BORLANDC__
  22     #pragma hdrstop
  23 #endif
  24
  25 #if wxUSE_STD_IOSTREAM
  26     #if wxUSE_IOSTREAMH
  27         #include <fstream.h>
  28     #else
  29         #include <fstream>
  30     #endif
  31 #endif
  32
  33 #if wxUSE_STREAMS
  34 #include "wx/stream.h"
  35 #include "wx/txtstrm.h"
  36 #endif
  37
  38 #include "wx/string.h"
  39 #include "wx/tokenzr.h"
  40
  41 #include "wx/variant.h"
  42
  43 #if wxUSE_TIMEDATE
  44 IMPLEMENT_DYNAMIC_CLASS(wxDate, wxObject)
  45 IMPLEMENT_DYNAMIC_CLASS(wxTime, wxObject)
  46
  47 wxTime::tFormat    wxTime::ms_Format    = wxTime::wx12h;
  48 wxTime::tPrecision wxTime::ms_Precision  = wxTime::wxStdMinSec;
  49 wxChar             wxTime::ms_bufTime[128];
  50 #endif
  51
  52 IMPLEMENT_ABSTRACT_CLASS(wxVariantData, wxObject)
  53
  54 wxVariant WXDLLEXPORT wxNullVariant;
  55
  56 /*
  57  * wxVariantDataList
  58  */
  59
  60 class WXDLLEXPORT wxVariantDataList: public wxVariantData
  61 {
  62 DECLARE_DYNAMIC_CLASS(wxVariantDataList)
  63 public:
  64     wxVariantDataList() {}
  65     wxVariantDataList(const wxList& list);
  66     ~wxVariantDataList();
  67
  68     wxList& GetValue() const { return (wxList&) m_value; }
  69     void SetValue(const wxList& value) ;
  70
  71     virtual void Copy(wxVariantData& data);
  72     virtual bool Eq(wxVariantData& data) const;
  73 #if wxUSE_STD_IOSTREAM
  74     virtual bool Write(wxSTD ostream& str) const;
  75 #endif
  76     virtual bool Write(wxString& str) const;
  77 #if wxUSE_STD_IOSTREAM
  78     virtual bool Read(wxSTD istream& str);
  79 #endif
  80     virtual bool Read(wxString& str);
  81     virtual wxString GetType() const { return wxT("list"); };
  82
  83     void Clear();
  84
  85 protected:
  86     wxList  m_value;
  87 };
  88
  89 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataList, wxVariantData)
  90
  91 wxVariantDataList::wxVariantDataList(const wxList& list)
  92 {
  93     SetValue(list);
  94 }
  95
  96 wxVariantDataList::~wxVariantDataList()
  97 {
  98     Clear();
  99 }
 100
 101 void wxVariantDataList::SetValue(const wxList& value)
 102 {
 103     Clear();
 104     wxNode* node = value.GetFirst();
 105     while (node)
 106     {
 107         wxVariant* var = (wxVariant*) node->GetData();
 108         m_value.Append(new wxVariant(*var));
 109         node = node->GetNext();
 110     }
 111 }
 112
 113 void wxVariantDataList::Clear()
 114 {
 115     wxNode* node = m_value.GetFirst();
 116     while (node)
 117     {
 118         wxVariant* var = (wxVariant*) node->GetData();
 119         delete var;
 120         node = node->GetNext();
 121     }
 122     m_value.Clear();
 123 }
 124
 125 void wxVariantDataList::Copy(wxVariantData& data)
 126 {
 127     wxASSERT_MSG( (data.GetType() == wxT("list")), wxT("wxVariantDataList::Copy: Can't copy to this type of data") );
 128
 129     wxVariantDataList& listData = (wxVariantDataList&) data;
 130
 131     listData.Clear();
 132     wxNode* node = m_value.GetFirst();
 133     while (node)
 134     {
 135         wxVariant* var = (wxVariant*) node->GetData();
 136         listData.m_value.Append(new wxVariant(*var));
 137         node = node->GetNext();
 138     }
 139 }
 140
 141 bool wxVariantDataList::Eq(wxVariantData& data) const
 142 {
 143     wxASSERT_MSG( (data.GetType() == wxT("list")), wxT("wxVariantDataList::Eq: argument mismatch") );
 144
 145     wxVariantDataList& listData = (wxVariantDataList&) data;
 146     wxNode* node1 = m_value.GetFirst();
 147     wxNode* node2 = listData.GetValue().GetFirst();
 148     while (node1 && node2)
 149     {
 150         wxVariant* var1 = (wxVariant*) node1->GetData();
 151         wxVariant* var2 = (wxVariant*) node2->GetData();
 152         if ((*var1) != (*var2))
 153             return false;
 154         node1 = node1->GetNext();
 155         node2 = node2->GetNext();
 156     }
 157     if (node1 || node2) return false;
 158     return true;
 159 }
 160
 161 #if wxUSE_STD_IOSTREAM
 162 bool wxVariantDataList::Write(wxSTD ostream& str) const
 163 {
 164     wxString s;
 165     Write(s);
 166     str << (const char*) s.mb_str();
 167     return true;
 168 }
 169 #endif
 170
 171 bool wxVariantDataList::Write(wxString& str) const
 172 {
 173     str = wxT("");
 174     wxNode* node = m_value.GetFirst();
 175     while (node)
 176     {
 177         wxVariant* var = (wxVariant*) node->GetData();
 178         if (node != m_value.GetFirst())
 179           str += wxT(" ");
 180         wxString str1;
 181         str += var->MakeString();
 182         node = node->GetNext();
 183     }
 184
 185     return true;
 186 }
 187
 188 #if wxUSE_STD_IOSTREAM
 189 bool wxVariantDataList::Read(wxSTD istream& WXUNUSED(str))
 190 {
 191     wxFAIL_MSG(wxT("Unimplemented"));
 192     // TODO
 193     return false;
 194 }
 195 #endif
 196
 197 bool wxVariantDataList::Read(wxString& WXUNUSED(str))
 198 {
 199     wxFAIL_MSG(wxT("Unimplemented"));
 200     // TODO
 201     return false;
 202 }
 203
 204 /*
 205  * wxVariantDataStringList
 206  */
 207
 208 class WXDLLEXPORT wxVariantDataStringList: public wxVariantData
 209 {
 210 DECLARE_DYNAMIC_CLASS(wxVariantDataStringList)
 211 public:
 212     wxVariantDataStringList() {}
 213     wxVariantDataStringList(const wxStringList& list) { m_value = list; }
 214
 215     wxStringList& GetValue() const { return (wxStringList&) m_value; }
 216     void SetValue(const wxStringList& value);
 217
 218     virtual void Copy(wxVariantData& data);
 219     virtual bool Eq(wxVariantData& data) const;
 220 #if wxUSE_STD_IOSTREAM
 221     virtual bool Write(wxSTD ostream& str) const;
 222 #endif
 223     virtual bool Write(wxString& str) const;
 224 #if wxUSE_STD_IOSTREAM
 225     virtual bool Read(wxSTD istream& str);
 226 #endif
 227     virtual bool Read(wxString& str);
 228     virtual wxString GetType() const { return wxT("stringlist"); };
 229
 230 protected:
 231     wxStringList  m_value;
 232 };
 233
 234 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataStringList, wxVariantData)
 235
 236 void wxVariantDataStringList::SetValue(const wxStringList& value)
 237 {
 238     m_value = value;
 239 }
 240
 241 void wxVariantDataStringList::Copy(wxVariantData& data)
 242 {
 243     wxASSERT_MSG( (data.GetType() == wxT("stringlist")), wxT("wxVariantDataStringList::Copy: Can't copy to this type of data") );
 244
 245     wxVariantDataStringList& listData = (wxVariantDataStringList&) data;
 246
 247     listData.m_value = m_value ;
 248 }
 249
 250 bool wxVariantDataStringList::Eq(wxVariantData& data) const
 251 {
 252     wxASSERT_MSG( (data.GetType() == wxT("stringlist")), wxT("wxVariantDataStringList::Eq: argument mismatch") );
 253
 254     wxVariantDataStringList& listData = (wxVariantDataStringList&) data;
 255     wxStringList::Node  *node1 = m_value.GetFirst();
 256     wxStringList::Node  *node2 = listData.GetValue().GetFirst();
 257     while (node1 && node2)
 258     {
 259         wxString str1 ( node1->GetData() );
 260         wxString str2 ( node2->GetData() );
 261         if (str1 != str2)
 262             return false;
 263         node1 = node1->GetNext();
 264         node2 = node2->GetNext();
 265     }
 266     if (node1 || node2) return false;
 267     return true;
 268 }
 269
 270 #if wxUSE_STD_IOSTREAM
 271 bool wxVariantDataStringList::Write(wxSTD ostream& str) const
 272 {
 273     wxString s;
 274     Write(s);
 275     str << (const char*) s.mb_str();
 276     return true;
 277 }
 278 #endif
 279
 280 bool wxVariantDataStringList::Write(wxString& str) const
 281 {
 282     str.Empty();
 283     wxStringList::Node  *node = m_value.GetFirst();
 284     while (node)
 285     {
 286         wxChar* s = node->GetData();
 287         if (node != m_value.GetFirst())
 288           str += wxT(" ");
 289         str += s;
 290         node = node->GetNext();
 291     }
 292
 293     return true;
 294 }
 295
 296 #if wxUSE_STD_IOSTREAM
 297 bool wxVariantDataStringList::Read(wxSTD istream& WXUNUSED(str))
 298 {
 299     wxFAIL_MSG(wxT("Unimplemented"));
 300     // TODO
 301     return false;
 302 }
 303 #endif
 304
 305 bool wxVariantDataStringList::Read(wxString& WXUNUSED(str))
 306 {
 307     wxFAIL_MSG(wxT("Unimplemented"));
 308     // TODO
 309     return false;
 310 }
 311
 312 /*
 313  * wxVariantDataLong
 314  */
 315
 316 class WXDLLEXPORT wxVariantDataLong: public wxVariantData
 317 {
 318 DECLARE_DYNAMIC_CLASS(wxVariantDataLong)
 319 public:
 320     wxVariantDataLong() { m_value = 0; }
 321     wxVariantDataLong(long value) { m_value = value; }
 322
 323     inline long GetValue() const { return m_value; }
 324     inline void SetValue(long value) { m_value = value; }
 325
 326     virtual void Copy(wxVariantData& data);
 327     virtual bool Eq(wxVariantData& data) const;
 328
 329     virtual bool Read(wxString& str);
 330     virtual bool Write(wxString& str) const;
 331 #if wxUSE_STD_IOSTREAM
 332     virtual bool Read(wxSTD istream& str);
 333     virtual bool Write(wxSTD ostream& str) const;
 334 #endif
 335 #if wxUSE_STREAMS
 336     virtual bool Read(wxInputStream& str);
 337     virtual bool Write(wxOutputStream &str) const;
 338 #endif // wxUSE_STREAMS
 339
 340     virtual wxString GetType() const { return wxT("long"); };
 341
 342 protected:
 343     long m_value;
 344 };
 345
 346 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataLong, wxVariantData)
 347
 348 void wxVariantDataLong::Copy(wxVariantData& data)
 349 {
 350     wxASSERT_MSG( (data.GetType() == wxT("long")), wxT("wxVariantDataLong::Copy: Can't copy to this type of data") );
 351
 352     wxVariantDataLong& otherData = (wxVariantDataLong&) data;
 353
 354     otherData.m_value = m_value;
 355 }
 356
 357 bool wxVariantDataLong::Eq(wxVariantData& data) const
 358 {
 359     wxASSERT_MSG( (data.GetType() == wxT("long")), wxT("wxVariantDataLong::Eq: argument mismatch") );
 360
 361     wxVariantDataLong& otherData = (wxVariantDataLong&) data;
 362
 363     return (otherData.m_value == m_value);
 364 }
 365
 366 #if wxUSE_STD_IOSTREAM
 367 bool wxVariantDataLong::Write(wxSTD ostream& str) const
 368 {
 369     wxString s;
 370     Write(s);
 371     str << (const char*) s.mb_str();
 372     return true;
 373 }
 374 #endif
 375
 376 bool wxVariantDataLong::Write(wxString& str) const
 377 {
 378     str.Printf(wxT("%ld"), m_value);
 379     return true;
 380 }
 381
 382 #if wxUSE_STD_IOSTREAM
 383 bool wxVariantDataLong::Read(wxSTD istream& str)
 384 {
 385     str >> m_value;
 386     return true;
 387 }
 388 #endif
 389
 390 #if wxUSE_STREAMS
 391 bool wxVariantDataLong::Write(wxOutputStream& str) const
 392 {
 393     wxTextOutputStream s(str);
 394
 395     s.Write32((size_t)m_value);
 396     return true;
 397 }
 398
 399 bool wxVariantDataLong::Read(wxInputStream& str)
 400 {
 401    wxTextInputStream s(str);
 402    m_value = s.Read32();
 403    return true;
 404 }
 405 #endif // wxUSE_STREAMS
 406
 407 bool wxVariantDataLong::Read(wxString& str)
 408 {
 409     m_value = wxAtol((const wxChar*) str);
 410     return true;
 411 }
 412
 413 /*
 414  * wxVariantDataReal
 415  */
 416
 417 class WXDLLEXPORT wxVariantDataReal: public wxVariantData
 418 {
 419 DECLARE_DYNAMIC_CLASS(wxVariantDataReal)
 420 public:
 421     wxVariantDataReal() { m_value = 0.0; }
 422     wxVariantDataReal(double value) { m_value = value; }
 423
 424     inline double GetValue() const { return m_value; }
 425     inline void SetValue(double value) { m_value = value; }
 426
 427     virtual void Copy(wxVariantData& data);
 428     virtual bool Eq(wxVariantData& data) const;
 429     virtual bool Read(wxString& str);
 430 #if wxUSE_STD_IOSTREAM
 431     virtual bool Write(wxSTD ostream& str) const;
 432 #endif
 433     virtual bool Write(wxString& str) const;
 434 #if wxUSE_STD_IOSTREAM
 435     virtual bool Read(wxSTD istream& str);
 436 #endif
 437 #if wxUSE_STREAMS
 438     virtual bool Read(wxInputStream& str);
 439     virtual bool Write(wxOutputStream &str) const;
 440 #endif // wxUSE_STREAMS
 441     virtual wxString GetType() const { return wxT("double"); };
 442
 443 protected:
 444     double m_value;
 445 };
 446
 447 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataReal, wxVariantData)
 448
 449 void wxVariantDataReal::Copy(wxVariantData& data)
 450 {
 451     wxASSERT_MSG( (data.GetType() == wxT("double")), wxT("wxVariantDataReal::Copy: Can't copy to this type of data") );
 452
 453     wxVariantDataReal& otherData = (wxVariantDataReal&) data;
 454
 455     otherData.m_value = m_value;
 456 }
 457
 458 bool wxVariantDataReal::Eq(wxVariantData& data) const
 459 {
 460     wxASSERT_MSG( (data.GetType() == wxT("double")), wxT("wxVariantDataReal::Eq: argument mismatch") );
 461
 462     wxVariantDataReal& otherData = (wxVariantDataReal&) data;
 463
 464     return (otherData.m_value == m_value);
 465 }
 466
 467 #if wxUSE_STD_IOSTREAM
 468 bool wxVariantDataReal::Write(wxSTD ostream& str) const
 469 {
 470     wxString s;
 471     Write(s);
 472     str << (const char*) s.mb_str();
 473     return true;
 474 }
 475 #endif
 476
 477 bool wxVariantDataReal::Write(wxString& str) const
 478 {
 479     str.Printf(wxT("%.4f"), m_value);
 480     return true;
 481 }
 482
 483 #if wxUSE_STD_IOSTREAM
 484 bool wxVariantDataReal::Read(wxSTD istream& str)
 485 {
 486     str >> m_value;
 487     return true;
 488 }
 489 #endif
 490
 491 #if wxUSE_STREAMS
 492 bool wxVariantDataReal::Write(wxOutputStream& str) const
 493 {
 494     wxTextOutputStream s(str);
 495     s.WriteDouble((double)m_value);
 496     return true;
 497 }
 498
 499 bool wxVariantDataReal::Read(wxInputStream& str)
 500 {
 501     wxTextInputStream s(str);
 502     m_value = (float)s.ReadDouble();
 503     return true;
 504 }
 505 #endif // wxUSE_STREAMS
 506
 507 bool wxVariantDataReal::Read(wxString& str)
 508 {
 509     m_value = wxAtof((const wxChar*) str);
 510     return true;
 511 }
 512
 513 #ifdef HAVE_BOOL
 514 /*
 515  * wxVariantDataBool
 516  */
 517
 518 class WXDLLEXPORT wxVariantDataBool: public wxVariantData
 519 {
 520 DECLARE_DYNAMIC_CLASS(wxVariantDataBool)
 521 public:
 522     wxVariantDataBool() { m_value = 0; }
 523     wxVariantDataBool(bool value) { m_value = value; }
 524
 525     inline bool GetValue() const { return m_value; }
 526     inline void SetValue(bool value) { m_value = value; }
 527
 528     virtual void Copy(wxVariantData& data);
 529     virtual bool Eq(wxVariantData& data) const;
 530 #if wxUSE_STD_IOSTREAM
 531     virtual bool Write(wxSTD ostream& str) const;
 532 #endif
 533     virtual bool Write(wxString& str) const;
 534     virtual bool Read(wxString& str);
 535 #if wxUSE_STD_IOSTREAM
 536     virtual bool Read(wxSTD istream& str);
 537 #endif
 538 #if wxUSE_STREAMS
 539     virtual bool Read(wxInputStream& str);
 540     virtual bool Write(wxOutputStream& str) const;
 541 #endif // wxUSE_STREAMS
 542     virtual wxString GetType() const { return wxT("bool"); };
 543
 544 protected:
 545     bool m_value;
 546 };
 547
 548 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataBool, wxVariantData)
 549
 550 void wxVariantDataBool::Copy(wxVariantData& data)
 551 {
 552     wxASSERT_MSG( (data.GetType() == wxT("bool")), wxT("wxVariantDataBool::Copy: Can't copy to this type of data") );
 553
 554     wxVariantDataBool& otherData = (wxVariantDataBool&) data;
 555
 556     otherData.m_value = m_value;
 557 }
 558
 559 bool wxVariantDataBool::Eq(wxVariantData& data) const
 560 {
 561     wxASSERT_MSG( (data.GetType() == wxT("bool")), wxT("wxVariantDataBool::Eq: argument mismatch") );
 562
 563     wxVariantDataBool& otherData = (wxVariantDataBool&) data;
 564
 565     return (otherData.m_value == m_value);
 566 }
 567
 568 #if wxUSE_STD_IOSTREAM
 569 bool wxVariantDataBool::Write(wxSTD ostream& str) const
 570 {
 571     wxString s;
 572     Write(s);
 573     str << (const char*) s.mb_str();
 574     return true;
 575 }
 576 #endif
 577
 578 bool wxVariantDataBool::Write(wxString& str) const
 579 {
 580     str.Printf(wxT("%d"), (int) m_value);
 581     return true;
 582 }
 583
 584 #if wxUSE_STD_IOSTREAM
 585 bool wxVariantDataBool::Read(wxSTD istream& WXUNUSED(str))
 586 {
 587     wxFAIL_MSG(wxT("Unimplemented"));
 588 //    str >> (long) m_value;
 589     return false;
 590 }
 591 #endif
 592
 593 #if wxUSE_STREAMS
 594 bool wxVariantDataBool::Write(wxOutputStream& str) const
 595 {
 596     wxTextOutputStream s(str);
 597
 598     s.Write8(m_value);
 599     return true;
 600 }
 601
 602 bool wxVariantDataBool::Read(wxInputStream& str)
 603 {
 604     wxTextInputStream s(str);
 605
 606     m_value = s.Read8() != 0;
 607     return true;
 608 }
 609 #endif // wxUSE_STREAMS
 610
 611 bool wxVariantDataBool::Read(wxString& str)
 612 {
 613     m_value = (wxAtol((const wxChar*) str) != 0);
 614     return true;
 615 }
 616 #endif // HAVE_BOOL
 617
 618 /*
 619  * wxVariantDataChar
 620  */
 621
 622 class WXDLLEXPORT wxVariantDataChar: public wxVariantData
 623 {
 624 DECLARE_DYNAMIC_CLASS(wxVariantDataChar)
 625 public:
 626     wxVariantDataChar() { m_value = 0; }
 627     wxVariantDataChar(char value) { m_value = value; }
 628
 629     inline char GetValue() const { return m_value; }
 630     inline void SetValue(char value) { m_value = value; }
 631
 632     virtual void Copy(wxVariantData& data);
 633     virtual bool Eq(wxVariantData& data) const;
 634 #if wxUSE_STD_IOSTREAM
 635     virtual bool Read(wxSTD istream& str);
 636     virtual bool Write(wxSTD ostream& str) const;
 637 #endif
 638     virtual bool Read(wxString& str);
 639     virtual bool Write(wxString& str) const;
 640 #if wxUSE_STREAMS
 641     virtual bool Read(wxInputStream& str);
 642     virtual bool Write(wxOutputStream& str) const;
 643 #endif // wxUSE_STREAMS
 644     virtual wxString GetType() const { return wxT("char"); };
 645
 646 protected:
 647     char m_value;
 648 };
 649
 650 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataChar, wxVariantData)
 651
 652 void wxVariantDataChar::Copy(wxVariantData& data)
 653 {
 654     wxASSERT_MSG( (data.GetType() == wxT("char")), wxT("wxVariantDataChar::Copy: Can't copy to this type of data") );
 655
 656     wxVariantDataChar& otherData = (wxVariantDataChar&) data;
 657
 658     otherData.m_value = m_value;
 659 }
 660
 661 bool wxVariantDataChar::Eq(wxVariantData& data) const
 662 {
 663     wxASSERT_MSG( (data.GetType() == wxT("char")), wxT("wxVariantDataChar::Eq: argument mismatch") );
 664
 665     wxVariantDataChar& otherData = (wxVariantDataChar&) data;
 666
 667     return (otherData.m_value == m_value);
 668 }
 669
 670 #if wxUSE_STD_IOSTREAM
 671 bool wxVariantDataChar::Write(wxSTD ostream& str) const
 672 {
 673     wxString s;
 674     Write(s);
 675     str << (const char*) s.mb_str();
 676     return true;
 677 }
 678 #endif
 679
 680 bool wxVariantDataChar::Write(wxString& str) const
 681 {
 682     str.Printf(wxT("%c"), m_value);
 683     return true;
 684 }
 685
 686 #if wxUSE_STD_IOSTREAM
 687 bool wxVariantDataChar::Read(wxSTD istream& WXUNUSED(str))
 688 {
 689     wxFAIL_MSG(wxT("Unimplemented"));
 690 //    str >> m_value;
 691     return false;
 692 }
 693 #endif
 694
 695 #if wxUSE_STREAMS
 696 bool wxVariantDataChar::Write(wxOutputStream& str) const
 697 {
 698     wxTextOutputStream s(str);
 699
 700     s.Write8(m_value);
 701     return true;
 702 }
 703
 704 bool wxVariantDataChar::Read(wxInputStream& str)
 705 {
 706     wxTextInputStream s(str);
 707
 708     m_value = s.Read8();
 709     return true;
 710 }
 711 #endif // wxUSE_STREAMS
 712
 713 bool wxVariantDataChar::Read(wxString& str)
 714 {
 715     m_value = str[(size_t)0];
 716     return true;
 717 }
 718
 719 /*
 720  * wxVariantDataString
 721  */
 722
 723 #if defined(__BORLANDC__) && defined(__WIN16__)
 724 // Change name because of truncation
 725 #define wxVariantDataString wxVariantStringData
 726 #endif
 727
 728 class WXDLLEXPORT wxVariantDataString: public wxVariantData
 729 {
 730 #if defined(__BORLANDC__) && defined(__WIN16__)
 731 DECLARE_DYNAMIC_CLASS(wxVariantStringData)
 732 #else
 733 DECLARE_DYNAMIC_CLASS(wxVariantDataString)
 734 #endif
 735 public:
 736     wxVariantDataString() { }
 737     wxVariantDataString(const wxString& value) { m_value = value; }
 738
 739     inline wxString GetValue() const { return m_value; }
 740     inline void SetValue(const wxString& value) { m_value = value; }
 741
 742     virtual void Copy(wxVariantData& data);
 743     virtual bool Eq(wxVariantData& data) const;
 744 #if wxUSE_STD_IOSTREAM
 745     virtual bool Write(wxSTD ostream& str) const;
 746 #endif
 747     virtual bool Read(wxString& str);
 748     virtual bool Write(wxString& str) const;
 749 #if wxUSE_STD_IOSTREAM
 750     virtual bool Read(wxSTD istream& str);
 751 #endif
 752 #if wxUSE_STREAMS
 753     virtual bool Read(wxInputStream& str);
 754     virtual bool Write(wxOutputStream& str) const;
 755 #endif // wxUSE_STREAMS
 756     virtual wxString GetType() const { return wxT("string"); };
 757
 758 protected:
 759     wxString m_value;
 760 };
 761
 762 void wxVariantDataString::Copy(wxVariantData& data)
 763 {
 764     wxASSERT_MSG( (data.GetType() == wxT("string")), wxT("wxVariantDataString::Copy: Can't copy to this type of data") );
 765
 766     wxVariantDataString& otherData = (wxVariantDataString&) data;
 767
 768     otherData.m_value = m_value;
 769 }
 770
 771 bool wxVariantDataString::Eq(wxVariantData& data) const
 772 {
 773     wxASSERT_MSG( (data.GetType() == wxT("string")), wxT("wxVariantDataString::Eq: argument mismatch") );
 774
 775     wxVariantDataString& otherData = (wxVariantDataString&) data;
 776
 777     return (otherData.m_value == m_value);
 778 }
 779
 780 #if wxUSE_STD_IOSTREAM
 781 bool wxVariantDataString::Write(wxSTD ostream& str) const
 782 {
 783     str << (const char*) m_value.mb_str();
 784     return true;
 785 }
 786 #endif
 787
 788 bool wxVariantDataString::Write(wxString& str) const
 789 {
 790     str = m_value;
 791     return true;
 792 }
 793
 794 #if wxUSE_STD_IOSTREAM
 795 bool wxVariantDataString::Read(wxSTD istream& str)
 796 {
 797     str >> m_value;
 798     return true;
 799 }
 800 #endif
 801
 802 #if wxUSE_STREAMS
 803 bool wxVariantDataString::Write(wxOutputStream& str) const
 804 {
 805   // why doesn't wxOutputStream::operator<< take "const wxString&"
 806     wxTextOutputStream s(str);
 807     s.WriteString(m_value);
 808     return true;
 809 }
 810
 811 bool wxVariantDataString::Read(wxInputStream& str)
 812 {
 813     wxTextInputStream s(str);
 814
 815     m_value = s.ReadString();
 816     return true;
 817 }
 818 #endif // wxUSE_STREAMS
 819
 820 bool wxVariantDataString::Read(wxString& str)
 821 {
 822     m_value = str;
 823     return true;
 824 }
 825
 826 #if defined(__BORLANDC__) && defined(__WIN16__)
 827 IMPLEMENT_DYNAMIC_CLASS(wxVariantStringData, wxVariantData)
 828 #else
 829 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataString, wxVariantData)
 830 #endif
 831
 832 /*
 833  * wxVariantDataTime
 834  */
 835
 836 // For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
 837 #if wxUSE_TIMEDATE && !defined(__WATCOMC__)
 838
 839 class wxVariantDataTime: public wxVariantData
 840 {
 841  DECLARE_DYNAMIC_CLASS(wxVariantDataTime)
 842 public:
 843     wxVariantDataTime() { }
 844     wxVariantDataTime(const wxTime& value) { m_value = value; }
 845
 846     inline wxTime GetValue() const { return m_value; }
 847     inline void SetValue(const wxTime& value) { m_value = value; }
 848
 849     virtual void Copy(wxVariantData& data);
 850     virtual bool Eq(wxVariantData& data) const;
 851 #if wxUSE_STD_IOSTREAM
 852     virtual bool Write(wxSTD ostream& str) const;
 853 #endif
 854     virtual bool Write(wxString& str) const;
 855 #if wxUSE_STD_IOSTREAM
 856     virtual bool Read(wxSTD istream& str);
 857 #endif
 858     virtual bool Read(wxString& str);
 859     virtual wxString GetType() const { return wxT("time"); };
 860     virtual wxVariantData* Clone() { return new wxVariantDataTime; }
 861
 862 protected:
 863     wxTime m_value;
 864 };
 865
 866 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataTime, wxVariantData)
 867
 868 void wxVariantDataTime::Copy(wxVariantData& data)
 869 {
 870     wxASSERT_MSG( (data.GetType() == wxT("time")), wxT("wxVariantDataTime::Copy: Can't copy to this type of data") );
 871
 872     wxVariantDataTime& otherData = (wxVariantDataTime&) data;
 873
 874     otherData.m_value = m_value;
 875 }
 876
 877 bool wxVariantDataTime::Eq(wxVariantData& data) const
 878 {
 879     wxASSERT_MSG( (data.GetType() == wxT("time")), wxT("wxVariantDataTime::Eq: argument mismatch") );
 880
 881     wxVariantDataTime& otherData = (wxVariantDataTime&) data;
 882
 883     return (otherData.m_value == m_value);
 884 }
 885
 886 #if wxUSE_STD_IOSTREAM
 887 bool wxVariantDataTime::Write(wxSTD ostream& str) const
 888 {
 889     wxString s;
 890     Write(s);
 891     str << (const char*) s.mb_str();
 892     return true;
 893 }
 894 #endif
 895
 896 bool wxVariantDataTime::Write(wxString& str) const
 897 {
 898     wxChar*s = m_value.FormatTime();
 899     str = s;
 900     return true;
 901 }
 902
 903 #if wxUSE_STD_IOSTREAM
 904 bool wxVariantDataTime::Read(wxSTD istream& WXUNUSED(str))
 905 {
 906     // Not implemented
 907     return false;
 908 }
 909 #endif
 910
 911 bool wxVariantDataTime::Read(wxString& WXUNUSED(str))
 912 {
 913     // Not implemented
 914     return false;
 915 }
 916
 917 /*
 918  * wxVariantDataDate
 919  */
 920
 921 class wxVariantDataDate: public wxVariantData
 922 {
 923  DECLARE_DYNAMIC_CLASS(wxVariantDataDate)
 924 public:
 925     wxVariantDataDate() { }
 926     wxVariantDataDate(const wxDate& value) { m_value = value; }
 927
 928     inline wxDate GetValue() const { return m_value; }
 929     inline void SetValue(const wxDate& value) { m_value = value; }
 930
 931     virtual void Copy(wxVariantData& data);
 932     virtual bool Eq(wxVariantData& data) const;
 933 #if wxUSE_STD_IOSTREAM
 934     virtual bool Write(wxSTD ostream& str) const;
 935 #endif
 936     virtual bool Write(wxString& str) const;
 937 #if wxUSE_STD_IOSTREAM
 938     virtual bool Read(wxSTD istream& str);
 939 #endif
 940     virtual bool Read(wxString& str);
 941     virtual wxString GetType() const { return wxT("date"); };
 942     virtual wxVariantData* Clone() { return new wxVariantDataDate; }
 943
 944 protected:
 945     wxDate m_value;
 946 };
 947
 948 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataDate, wxVariantData)
 949
 950 void wxVariantDataDate::Copy(wxVariantData& data)
 951 {
 952     wxASSERT_MSG( (data.GetType() == wxT("date")), wxT("wxVariantDataDate::Copy: Can't copy to this type of data") );
 953
 954     wxVariantDataDate& otherData = (wxVariantDataDate&) data;
 955
 956     otherData.m_value = m_value;
 957 }
 958
 959 bool wxVariantDataDate::Eq(wxVariantData& data) const
 960 {
 961     wxASSERT_MSG( (data.GetType() == wxT("date")), wxT("wxVariantDataDate::Eq: argument mismatch") );
 962
 963     wxVariantDataDate& otherData = (wxVariantDataDate&) data;
 964
 965     return (otherData.m_value == m_value);
 966 }
 967
 968 #if wxUSE_STD_IOSTREAM
 969 bool wxVariantDataDate::Write(wxSTD ostream& str) const
 970 {
 971     wxString s;
 972     Write(s);
 973     str << (const char*) s.mb_str();
 974     return true;
 975 }
 976 #endif
 977
 978 bool wxVariantDataDate::Write(wxString& str) const
 979 {
 980     str = m_value.FormatDate();
 981     return true;
 982 }
 983
 984 #if wxUSE_STD_IOSTREAM
 985 bool wxVariantDataDate::Read(wxSTD istream& WXUNUSED(str))
 986 {
 987     // Not implemented
 988     return false;
 989 }
 990 #endif
 991
 992 bool wxVariantDataDate::Read(wxString& WXUNUSED(str))
 993 {
 994     // Not implemented
 995     return false;
 996 }
 997 #endif
 998   // wxUSE_TIMEDATE
 999
1000 /*
1001  * wxVariantDataVoidPtr
1002  */
1003
1004 class wxVariantDataVoidPtr: public wxVariantData
1005 {
1006 DECLARE_DYNAMIC_CLASS(wxVariantDataVoidPtr)
1007 public:
1008     wxVariantDataVoidPtr() { }
1009     wxVariantDataVoidPtr(void* value) { m_value = value; }
1010
1011     inline void* GetValue() const { return m_value; }
1012     inline void SetValue(void* value) { m_value = value; }
1013
1014     virtual void Copy(wxVariantData& data);
1015     virtual bool Eq(wxVariantData& data) const;
1016 #if wxUSE_STD_IOSTREAM
1017     virtual bool Write(wxSTD ostream& str) const;
1018 #endif
1019     virtual bool Write(wxString& str) const;
1020 #if wxUSE_STD_IOSTREAM
1021     virtual bool Read(wxSTD istream& str);
1022 #endif
1023     virtual bool Read(wxString& str);
1024     virtual wxString GetType() const { return wxT("void*"); };
1025     virtual wxVariantData* Clone() { return new wxVariantDataVoidPtr; }
1026
1027 protected:
1028     void* m_value;
1029
1030     DECLARE_NO_COPY_CLASS(wxVariantDataVoidPtr)
1031 };
1032
1033 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataVoidPtr, wxVariantData)
1034
1035 void wxVariantDataVoidPtr::Copy(wxVariantData& data)
1036 {
1037     wxASSERT_MSG( (data.GetType() == wxT("void*")), wxT("wxVariantDataVoidPtr::Copy: Can't copy to this type of data") );
1038
1039     wxVariantDataVoidPtr& otherData = (wxVariantDataVoidPtr&) data;
1040
1041     otherData.m_value = m_value;
1042 }
1043
1044 bool wxVariantDataVoidPtr::Eq(wxVariantData& data) const
1045 {
1046     wxASSERT_MSG( (data.GetType() == wxT("void*")), wxT("wxVariantDataVoidPtr::Eq: argument mismatch") );
1047
1048     wxVariantDataVoidPtr& otherData = (wxVariantDataVoidPtr&) data;
1049
1050     return (otherData.m_value == m_value);
1051 }
1052
1053 #if wxUSE_STD_IOSTREAM
1054 bool wxVariantDataVoidPtr::Write(wxSTD ostream& str) const
1055 {
1056     wxString s;
1057     Write(s);
1058     str << (const char*) s.mb_str();
1059     return true;
1060 }
1061 #endif
1062
1063 bool wxVariantDataVoidPtr::Write(wxString& str) const
1064 {
1065     str.Printf(wxT("%ld"), (long) m_value);
1066     return true;
1067 }
1068
1069 #if wxUSE_STD_IOSTREAM
1070 bool wxVariantDataVoidPtr::Read(wxSTD istream& WXUNUSED(str))
1071 {
1072     // Not implemented
1073     return false;
1074 }
1075 #endif
1076
1077 bool wxVariantDataVoidPtr::Read(wxString& WXUNUSED(str))
1078 {
1079     // Not implemented
1080     return false;
1081 }
1082
1083 /*
1084  * wxVariantDataDateTime
1085  */
1086
1087 class wxVariantDataDateTime: public wxVariantData
1088 {
1089     DECLARE_DYNAMIC_CLASS(wxVariantDataDateTime)
1090
1091 public:
1092     wxVariantDataDateTime() { }
1093     wxVariantDataDateTime(const wxDateTime& value) { m_value = value; }
1094 #if wxUSE_ODBC
1095     wxVariantDataDateTime(const TIME_STRUCT* valptr)
1096         { m_value = wxDateTime(valptr->hour, valptr->minute, valptr->second); }
1097     wxVariantDataDateTime(const DATE_STRUCT* valptr)
1098         { m_value = wxDateTime(valptr->day, (wxDateTime::Month) (valptr->month - 1),valptr->year); }
1099     wxVariantDataDateTime(const TIMESTAMP_STRUCT* valptr)
1100         { m_value = wxDateTime(valptr->day, (wxDateTime::Month) (valptr->month - 1), valptr->year,
1101                         valptr->hour, valptr->minute, valptr->second, valptr->fraction ); }
1102 #endif //ODBC
1103
1104     inline wxDateTime GetValue() const { return m_value; }
1105     inline void SetValue(const wxDateTime& value) { m_value = value; }
1106
1107     virtual void Copy(wxVariantData& data);
1108     virtual bool Eq(wxVariantData& data) const;
1109 #if wxUSE_STD_IOSTREAM
1110     virtual bool Write(wxSTD ostream& str) const;
1111 #endif
1112     virtual bool Write(wxString& str) const;
1113 #if wxUSE_STD_IOSTREAM
1114     virtual bool Read(wxSTD istream& str);
1115 #endif
1116     virtual bool Read(wxString& str);
1117     virtual wxString GetType() const { return wxT("datetime"); };
1118     virtual wxVariantData* Clone() { return new wxVariantDataDateTime; }
1119
1120 protected:
1121     wxDateTime m_value;
1122 };
1123
1124
1125 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataDateTime, wxVariantData)
1126
1127 void wxVariantDataDateTime::Copy(wxVariantData& data)
1128 {
1129     wxASSERT_MSG( (data.GetType() == wxT("datetime")), wxT("wxVariantDataDateTime::Copy: Can't copy to this type of data") );
1130
1131     wxVariantDataDateTime& otherData = (wxVariantDataDateTime&) data;
1132
1133     otherData.m_value = m_value;
1134 }
1135
1136
1137 bool wxVariantDataDateTime::Eq(wxVariantData& data) const
1138 {
1139     wxASSERT_MSG( (data.GetType() == wxT("datetime")), wxT("wxVariantDataDateTime::Eq: argument mismatch") );
1140
1141     wxVariantDataDateTime& otherData = (wxVariantDataDateTime&) data;
1142
1143     return (otherData.m_value == m_value);
1144 }
1145
1146
1147 #if wxUSE_STD_IOSTREAM
1148 bool wxVariantDataDateTime::Write(wxSTD ostream& str) const
1149 {
1150     // Not implemented
1151     return false;
1152 }
1153 #endif
1154
1155
1156 bool wxVariantDataDateTime::Write(wxString& str) const
1157 {
1158     str = m_value.Format();
1159     return true;
1160 }
1161
1162
1163 #if wxUSE_STD_IOSTREAM
1164 bool wxVariantDataDateTime::Read(wxSTD istream& WXUNUSED(str))
1165 {
1166     // Not implemented
1167     return false;
1168 }
1169 #endif
1170
1171
1172 bool wxVariantDataDateTime::Read(wxString& str)
1173 {
1174     if(! m_value.ParseDateTime(str))
1175         return false;
1176     return true;
1177 }
1178
1179 // ----------------------------------------------------------------------------
1180 // wxVariantDataArrayString
1181 // ----------------------------------------------------------------------------
1182
1183 class wxVariantDataArrayString: public wxVariantData
1184 {
1185 public:
1186     wxVariantDataArrayString() { }
1187     wxVariantDataArrayString(const wxArrayString& value) { m_value = value; }
1188
1189     wxArrayString GetValue() const { return m_value; }
1190     void SetValue(const wxArrayString& value) { m_value = value; }
1191
1192     virtual void Copy(wxVariantData& data);
1193     virtual bool Eq(wxVariantData& data) const;
1194 #if wxUSE_STD_IOSTREAM
1195     virtual bool Write(wxSTD ostream& str) const;
1196 #endif
1197     virtual bool Write(wxString& str) const;
1198 #if wxUSE_STD_IOSTREAM
1199     virtual bool Read(wxSTD istream& str);
1200 #endif
1201     virtual bool Read(wxString& str);
1202     virtual wxString GetType() const { return wxT("arrstring"); };
1203     virtual wxVariantData* Clone() { return new wxVariantDataArrayString; }
1204
1205 protected:
1206     wxArrayString m_value;
1207
1208     DECLARE_DYNAMIC_CLASS(wxVariantDataArrayString)
1209 };
1210
1211 IMPLEMENT_DYNAMIC_CLASS(wxVariantDataArrayString, wxVariantData)
1212
1213 void wxVariantDataArrayString::Copy(wxVariantData& data)
1214 {
1215     wxASSERT_MSG( data.GetType() == GetType(), wxT("wxVariantDataArrayString::Copy: Can't copy to this type of data") );
1216
1217     wxVariantDataArrayString& otherData = (wxVariantDataArrayString&) data;
1218
1219     otherData.m_value = m_value;
1220 }
1221
1222
1223 bool wxVariantDataArrayString::Eq(wxVariantData& data) const
1224 {
1225     wxASSERT_MSG( data.GetType() == GetType(), wxT("wxVariantDataArrayString::Eq: argument mismatch") );
1226
1227     wxVariantDataArrayString& otherData = (wxVariantDataArrayString&) data;
1228
1229     return otherData.m_value == m_value;
1230 }
1231
1232
1233 #if wxUSE_STD_IOSTREAM
1234 bool wxVariantDataArrayString::Write(wxSTD ostream& str) const
1235 {
1236     // Not implemented
1237     return false;
1238 }
1239 #endif
1240
1241
1242 bool wxVariantDataArrayString::Write(wxString& str) const
1243 {
1244     size_t count = m_value.GetCount();
1245     for ( size_t n = 0; n < count; n++ )
1246     {
1247         if ( n )
1248             str += _T(';');
1249
1250         str += m_value[n];
1251     }
1252
1253     return true;
1254 }
1255
1256
1257 #if wxUSE_STD_IOSTREAM
1258 bool wxVariantDataArrayString::Read(wxSTD istream& WXUNUSED(str))
1259 {
1260     // Not implemented
1261     return false;
1262 }
1263 #endif
1264
1265
1266 bool wxVariantDataArrayString::Read(wxString& str)
1267 {
1268     wxStringTokenizer tk(str, _T(";"));
1269     while ( tk.HasMoreTokens() )
1270     {
1271         m_value.Add(tk.GetNextToken());
1272     }
1273
1274     return true;
1275 }
1276
1277
1278
1279 /*
1280  * wxVariant
1281  */
1282
1283 IMPLEMENT_DYNAMIC_CLASS(wxVariant, wxObject)
1284
1285 // Construction & destruction
1286 wxVariant::wxVariant()
1287 {
1288     m_data = (wxVariantData*) NULL;
1289 }
1290
1291 wxVariant::wxVariant(double val, const wxString& name)
1292 {
1293     m_data = new wxVariantDataReal(val);
1294     m_name = name;
1295 }
1296
1297 wxVariant::wxVariant(long val, const wxString& name)
1298 {
1299     m_data = new wxVariantDataLong(val);
1300     m_name = name;
1301 }
1302
1303 #ifdef HAVE_BOOL
1304 wxVariant::wxVariant(bool val, const wxString& name)
1305 {
1306     m_data = new wxVariantDataBool(val);
1307     m_name = name;
1308 }
1309 #endif
1310
1311 wxVariant::wxVariant(char val, const wxString& name)
1312 {
1313     m_data = new wxVariantDataChar(val);
1314     m_name = name;
1315 }
1316
1317 wxVariant::wxVariant(const wxString& val, const wxString& name)
1318 {
1319     m_data = new wxVariantDataString(val);
1320     m_name = name;
1321 }
1322
1323 wxVariant::wxVariant(const wxChar* val, const wxString& name)
1324 {
1325     m_data = new wxVariantDataString(wxString(val));
1326     m_name = name;
1327 }
1328
1329 wxVariant::wxVariant(const wxStringList& val, const wxString& name)
1330 {
1331     m_data = new wxVariantDataStringList(val);
1332     m_name = name;
1333 }
1334
1335 wxVariant::wxVariant(const wxList& val, const wxString& name) // List of variants
1336 {
1337     m_data = new wxVariantDataList(val);
1338     m_name = name;
1339 }
1340
1341 // For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
1342 #if wxUSE_TIMEDATE && !defined(__WATCOMC__)
1343 wxVariant::wxVariant(const wxTime& val, const wxString& name) // Time
1344 {
1345     m_data = new wxVariantDataTime(val);
1346     m_name = name;
1347 }
1348
1349 wxVariant::wxVariant(const wxDate& val, const wxString& name) // Date
1350 {
1351     m_data = new wxVariantDataDate(val);
1352     m_name = name;
1353 }
1354 #endif
1355
1356 wxVariant::wxVariant(void* val, const wxString& name) // Void ptr
1357 {
1358     m_data = new wxVariantDataVoidPtr(val);
1359     m_name = name;
1360 }
1361
1362 wxVariant::wxVariant(const wxDateTime& val, const wxString& name) // Date
1363 {
1364     m_data = new wxVariantDataDateTime(val);
1365     m_name = name;
1366 }
1367
1368 #if wxUSE_ODBC
1369 wxVariant::wxVariant(const TIME_STRUCT* valptr, const wxString& name) // Date
1370 {
1371     m_data = new wxVariantDataDateTime(valptr);
1372     m_name = name;
1373 }
1374
1375 wxVariant::wxVariant(const TIMESTAMP_STRUCT* valptr, const wxString& name) // Date
1376 {
1377     m_data = new wxVariantDataDateTime(valptr);
1378     m_name = name;
1379 }
1380
1381 wxVariant::wxVariant(const DATE_STRUCT* valptr, const wxString& name) // Date
1382 {
1383     m_data = new wxVariantDataDateTime(valptr);
1384     m_name = name;
1385 }
1386 #endif // wxUSE_ODBC
1387
1388 wxVariant::wxVariant(const wxArrayString& val, const wxString& name) // Strings
1389 {
1390     m_data = new wxVariantDataArrayString(val);
1391     m_name = name;
1392 }
1393
1394 wxVariant::wxVariant(const wxVariant& variant)
1395     : wxObject()
1396 {
1397     if (!variant.IsNull())
1398     {
1399         m_data = (wxVariantData*) variant.GetData()->GetClassInfo()->CreateObject();
1400         variant.m_data->Copy(*m_data);
1401     }
1402     else
1403         m_data = (wxVariantData*) NULL;
1404     m_name = variant.m_name;
1405 }
1406
1407 wxVariant::wxVariant(wxVariantData* data, const wxString& name) // User-defined data
1408 {
1409     m_data = data;
1410     m_name = name;
1411 }
1412
1413 wxVariant::~wxVariant()
1414 {
1415     delete m_data;
1416 }
1417
1418
1419 // Make NULL (i.e. delete the data)
1420 void wxVariant::MakeNull()
1421 {
1422     delete m_data;
1423     m_data = NULL;
1424 }
1425
1426 // Generic operators
1427 // Assignment
1428 void wxVariant::operator= (const wxVariant& variant)
1429 {
1430     if (variant.IsNull())
1431     {
1432         MakeNull();
1433         return;
1434     }
1435
1436     if (IsNull() || (GetType() != variant.GetType()))
1437     {
1438         if (m_data)
1439             delete m_data;
1440         m_data = (wxVariantData*) variant.GetData()->GetClassInfo()->CreateObject();
1441     }
1442
1443     variant.GetData()->Copy(* GetData());
1444
1445     m_name = variant.m_name;
1446 }
1447
1448 // Assignment using data, e.g.
1449 // myVariant = new wxStringVariantData("hello")
1450 void wxVariant::operator= (wxVariantData* variantData)
1451 {
1452     MakeNull();
1453     m_data = variantData;
1454 }
1455
1456 bool wxVariant::operator== (const wxVariant& variant) const
1457 {
1458     if (IsNull() || variant.IsNull())
1459         return (IsNull() == variant.IsNull());
1460
1461     return (GetData()->Eq(* variant.GetData()));
1462 }
1463
1464 bool wxVariant::operator!= (const wxVariant& variant) const
1465 {
1466     return (!(*this == variant));
1467 }
1468
1469
1470 // Specific operators
1471 bool wxVariant::operator== (double value) const
1472 {
1473     double thisValue;
1474     if (!Convert(&thisValue))
1475         return false;
1476     else
1477         return (value == thisValue);
1478 }
1479
1480 bool wxVariant::operator!= (double value) const
1481 {
1482     return (!((*this) == value));
1483 }
1484
1485 void wxVariant::operator= (double value)
1486 {
1487     if (GetType() == wxT("double"))
1488     {
1489         ((wxVariantDataReal*)GetData())->SetValue(value);
1490     }
1491     else
1492     {
1493         if (m_data)
1494             delete m_data;
1495         m_data = new wxVariantDataReal(value);
1496     }
1497 }
1498
1499 bool wxVariant::operator== (long value) const
1500 {
1501     long thisValue;
1502     if (!Convert(&thisValue))
1503         return false;
1504     else
1505         return (value == thisValue);
1506 }
1507
1508 bool wxVariant::operator!= (long value) const
1509 {
1510     return (!((*this) == value));
1511 }
1512
1513 void wxVariant::operator= (long value)
1514 {
1515     if (GetType() == wxT("long"))
1516     {
1517         ((wxVariantDataLong*)GetData())->SetValue(value);
1518     }
1519     else
1520     {
1521         if (m_data)
1522             delete m_data;
1523         m_data = new wxVariantDataLong(value);
1524     }
1525 }
1526
1527 bool wxVariant::operator== (char value) const
1528 {
1529     char thisValue;
1530     if (!Convert(&thisValue))
1531         return false;
1532     else
1533         return (value == thisValue);
1534 }
1535
1536 bool wxVariant::operator!= (char value) const
1537 {
1538     return (!((*this) == value));
1539 }
1540
1541 void wxVariant::operator= (char value)
1542 {
1543     if (GetType() == wxT("char"))
1544     {
1545         ((wxVariantDataChar*)GetData())->SetValue(value);
1546     }
1547     else
1548     {
1549         if (m_data)
1550             delete m_data;
1551         m_data = new wxVariantDataChar(value);
1552     }
1553 }
1554
1555 #ifdef HAVE_BOOL
1556 bool wxVariant::operator== (bool value) const
1557 {
1558     bool thisValue;
1559     if (!Convert(&thisValue))
1560         return false;
1561     else
1562         return (value == thisValue);
1563 }
1564
1565 bool wxVariant::operator!= (bool value) const
1566 {
1567     return (!((*this) == value));
1568 }
1569
1570 void wxVariant::operator= (bool value)
1571 {
1572     if (GetType() == wxT("bool"))
1573     {
1574         ((wxVariantDataBool*)GetData())->SetValue(value);
1575     }
1576     else
1577     {
1578         if (m_data)
1579             delete m_data;
1580         m_data = new wxVariantDataBool(value);
1581     }
1582 }
1583 #endif // HAVE_BOOL
1584
1585 bool wxVariant::operator== (const wxString& value) const
1586 {
1587     wxString thisValue;
1588     if (!Convert(&thisValue))
1589         return false;
1590
1591     return value == thisValue;
1592 }
1593
1594 bool wxVariant::operator!= (const wxString& value) const
1595 {
1596     return (!((*this) == value));
1597 }
1598
1599 void wxVariant::operator= (const wxString& value)
1600 {
1601     if (GetType() == wxT("string"))
1602     {
1603         ((wxVariantDataString*)GetData())->SetValue(value);
1604     }
1605     else
1606     {
1607         if (m_data)
1608             delete m_data;
1609         m_data = new wxVariantDataString(value);
1610     }
1611 }
1612
1613 void wxVariant::operator= (const wxChar* value)
1614 {
1615     if (GetType() == wxT("string"))
1616     {
1617         ((wxVariantDataString*)GetData())->SetValue(wxString(value));
1618     }
1619     else
1620     {
1621         if (m_data)
1622             delete m_data;
1623         m_data = new wxVariantDataString(wxString(value));
1624     }
1625 }
1626
1627 bool wxVariant::operator== (const wxStringList& value) const
1628 {
1629     wxASSERT_MSG( (GetType() == wxT("stringlist")), wxT("Invalid type for == operator") );
1630
1631     wxVariantDataStringList other(value);
1632     return (m_data->Eq(other));
1633 }
1634
1635 bool wxVariant::operator!= (const wxStringList& value) const
1636 {
1637     return (!((*this) == value));
1638 }
1639
1640 void wxVariant::operator= (const wxStringList& value)
1641 {
1642     if (GetType() == wxT("stringlist"))
1643     {
1644         ((wxVariantDataStringList*)GetData())->SetValue(value);
1645     }
1646     else
1647     {
1648         if (m_data)
1649             delete m_data;
1650         m_data = new wxVariantDataStringList(value);
1651     }
1652 }
1653
1654 bool wxVariant::operator== (const wxList& value) const
1655 {
1656     wxASSERT_MSG( (GetType() == wxT("list")), wxT("Invalid type for == operator") );
1657
1658     wxVariantDataList other(value);
1659     return (m_data->Eq(other));
1660 }
1661
1662 bool wxVariant::operator!= (const wxList& value) const
1663 {
1664     return (!((*this) == value));
1665 }
1666
1667 void wxVariant::operator= (const wxList& value)
1668 {
1669     if (GetType() == wxT("list"))
1670     {
1671         ((wxVariantDataList*)GetData())->SetValue(value);
1672     }
1673     else
1674     {
1675         if (m_data)
1676             delete m_data;
1677         m_data = new wxVariantDataList(value);
1678     }
1679 }
1680
1681 // For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
1682 #if wxUSE_TIMEDATE && !defined(__WATCOMC__)
1683 bool wxVariant::operator== (const wxTime& value) const
1684 {
1685     wxTime thisValue;
1686     if (!Convert(&thisValue))
1687         return false;
1688
1689     return value == thisValue;
1690 }
1691
1692 bool wxVariant::operator!= (const wxTime& value) const
1693 {
1694     return (!((*this) == value));
1695 }
1696
1697 void wxVariant::operator= (const wxTime& value)
1698 {
1699     if (GetType() == wxT("time"))
1700     {
1701         ((wxVariantDataTime*)GetData())->SetValue(value);
1702     }
1703     else
1704     {
1705         if (m_data)
1706             delete m_data;
1707         m_data = new wxVariantDataTime(value);
1708     }
1709 }
1710
1711 bool wxVariant::operator== (const wxDate& value) const
1712 {
1713     wxDate thisValue;
1714     if (!Convert(&thisValue))
1715         return false;
1716
1717     return (value == thisValue);
1718 }
1719
1720 bool wxVariant::operator!= (const wxDate& value) const
1721 {
1722     return (!((*this) == value));
1723 }
1724
1725 void wxVariant::operator= (const wxDate& value)
1726 {
1727     if (GetType() == wxT("date"))
1728     {
1729         ((wxVariantDataTime*)GetData())->SetValue(value);
1730     }
1731     else
1732     {
1733         if (m_data)
1734             delete m_data;
1735         m_data = new wxVariantDataDate(value);
1736     }
1737 }
1738 #endif
1739
1740 bool wxVariant::operator== (void* value) const
1741 {
1742     return (value == ((wxVariantDataVoidPtr*)GetData())->GetValue());
1743 }
1744
1745 bool wxVariant::operator!= (void* value) const
1746 {
1747     return (!((*this) == (void*) value));
1748 }
1749
1750 void wxVariant::operator= (void* value)
1751 {
1752     if (GetType() == wxT("void*"))
1753     {
1754         ((wxVariantDataVoidPtr*)GetData())->SetValue(value);
1755     }
1756     else
1757     {
1758         if (m_data)
1759             delete m_data;
1760         m_data = new wxVariantDataVoidPtr(value);
1761     }
1762 }
1763
1764 bool wxVariant::operator== (const wxDateTime& value) const
1765 {
1766     wxDateTime thisValue;
1767     if (!Convert(&thisValue))
1768         return false;
1769
1770     return value.IsEqualTo(thisValue);
1771 }
1772
1773 bool wxVariant::operator!= (const wxDateTime& value) const
1774 {
1775     return (!((*this) == value));
1776 }
1777
1778 void wxVariant::operator= (const wxDateTime& value)
1779 {
1780     if (GetType() == wxT("datetime"))
1781     {
1782         ((wxVariantDataDateTime*)GetData())->SetValue(value);
1783     }
1784     else
1785     {
1786         if (m_data)
1787             delete m_data;
1788         m_data = new wxVariantDataDateTime(value);
1789     }
1790 }
1791
1792 #if wxUSE_ODBC
1793 void wxVariant::operator= (const DATE_STRUCT* value)
1794 {
1795     if (m_data)
1796         delete m_data;
1797     m_data = new wxVariantDataDateTime(value);
1798 }
1799
1800
1801 void wxVariant::operator= (const TIME_STRUCT* value)
1802 {
1803     if (m_data)
1804         delete m_data;
1805     m_data = new wxVariantDataDateTime(value);
1806 }
1807
1808
1809 void wxVariant::operator= (const TIMESTAMP_STRUCT* value)
1810 {
1811     if (m_data)
1812         delete m_data;
1813     m_data = new wxVariantDataDateTime(value);
1814 }
1815
1816 #endif // wxUSE_ODBC
1817
1818 bool wxVariant::operator==(const wxArrayString& WXUNUSED(value)) const
1819 {
1820     wxFAIL_MSG( _T("TODO") );
1821
1822     return false;
1823 }
1824
1825 bool wxVariant::operator!=(const wxArrayString& value) const
1826 {
1827     return !(*this == value);
1828 }
1829
1830 void wxVariant::operator=(const wxArrayString& value)
1831 {
1832     if (GetType() == wxT("arrstring"))
1833     {
1834         ((wxVariantDataArrayString *)GetData())->SetValue(value);
1835     }
1836     else
1837     {
1838         delete m_data;
1839         m_data = new wxVariantDataArrayString(value);
1840     }
1841 }
1842
1843 wxArrayString wxVariant::GetArrayString() const
1844 {
1845     if ( GetType() == wxT("arrstring") )
1846         return ((wxVariantDataArrayString *)GetData())->GetValue();
1847
1848     return wxArrayString();
1849 }
1850
1851
1852 // Treat a list variant as an array
1853 wxVariant wxVariant::operator[] (size_t idx) const
1854 {
1855     wxASSERT_MSG( (GetType() == wxT("list") || GetType() == wxT("stringlist")), wxT("Invalid type for array operator") );
1856
1857     if (GetType() == wxT("list"))
1858     {
1859         wxVariantDataList* data = (wxVariantDataList*) m_data;
1860         wxASSERT_MSG( (idx < (size_t) data->GetValue().GetCount()), wxT("Invalid index for array") );
1861         return * (wxVariant*) (data->GetValue().Item(idx)->GetData());
1862     }
1863     else if (GetType() == wxT("stringlist"))
1864     {
1865         wxVariantDataStringList* data = (wxVariantDataStringList*) m_data;
1866         wxASSERT_MSG( (idx < (size_t) data->GetValue().GetCount()), wxT("Invalid index for array") );
1867
1868         wxVariant variant( wxString( (wxChar*) (data->GetValue().Item(idx)->GetData()) ));
1869         return variant;
1870     }
1871     return wxNullVariant;
1872 }
1873
1874 wxVariant& wxVariant::operator[] (size_t idx)
1875 {
1876     // We can't return a reference to a variant for a string list, since the string
1877     // is actually stored as a char*, not a variant.
1878
1879     wxASSERT_MSG( (GetType() == wxT("list")), wxT("Invalid type for array operator") );
1880
1881     wxVariantDataList* data = (wxVariantDataList*) m_data;
1882     wxASSERT_MSG( (idx < (size_t) data->GetValue().GetCount()), wxT("Invalid index for array") );
1883
1884     return * (wxVariant*) (data->GetValue().Item(idx)->GetData());
1885 }
1886
1887 // Return the number of elements in a list
1888 int wxVariant::GetCount() const
1889 {
1890     wxASSERT_MSG( (GetType() == wxT("list") || GetType() == wxT("stringlist")), wxT("Invalid type for GetCount()") );
1891
1892     if (GetType() == wxT("list"))
1893     {
1894         wxVariantDataList* data = (wxVariantDataList*) m_data;
1895         return data->GetValue().GetCount();
1896     }
1897     else if (GetType() == wxT("stringlist"))
1898     {
1899         wxVariantDataStringList* data = (wxVariantDataStringList*) m_data;
1900         return data->GetValue().GetCount();
1901     }
1902     return 0;
1903 }
1904
1905 wxString wxVariant::MakeString() const
1906 {
1907     if (!IsNull())
1908     {
1909         wxString str;
1910         if (GetData()->Write(str))
1911             return str;
1912     }
1913     return wxString(wxT(""));
1914 }
1915
1916 // Accessors
1917
1918 void wxVariant::SetData(wxVariantData* data)
1919 {
1920     if (m_data) delete m_data;
1921     m_data = data;
1922 }
1923
1924
1925 // Returns a string representing the type of the variant,
1926 // e.g. "string", "bool", "stringlist", "list", "double", "long"
1927 wxString wxVariant::GetType() const
1928 {
1929     if (IsNull())
1930         return wxString(wxT("null"));
1931     else
1932         return m_data->GetType();
1933 }
1934
1935
1936 bool wxVariant::IsType(const wxString& type) const
1937 {
1938     return (GetType() == type);
1939 }
1940
1941
1942 // Value accessors
1943 double wxVariant::GetReal() const
1944 {
1945     double value;
1946     if (Convert(& value))
1947         return value;
1948     else
1949     {
1950         wxFAIL_MSG(wxT("Could not convert to a real number"));
1951         return 0.0;
1952     }
1953 }
1954
1955 long wxVariant::GetInteger() const
1956 {
1957     long value;
1958     if (Convert(& value))
1959         return value;
1960     else
1961     {
1962         wxFAIL_MSG(wxT("Could not convert to an integer"));
1963         return 0;
1964     }
1965 }
1966
1967 char wxVariant::GetChar() const
1968 {
1969     char value;
1970     if (Convert(& value))
1971         return value;
1972     else
1973     {
1974         wxFAIL_MSG(wxT("Could not convert to a char"));
1975         return 0;
1976     }
1977 }
1978
1979 bool wxVariant::GetBool() const
1980 {
1981     bool value;
1982     if (Convert(& value))
1983         return value;
1984     else
1985     {
1986         wxFAIL_MSG(wxT("Could not convert to a bool"));
1987         return 0;
1988     }
1989 }
1990
1991 wxString wxVariant::GetString() const
1992 {
1993     wxString value;
1994     if (!Convert(& value))
1995     {
1996         wxFAIL_MSG(wxT("Could not convert to a string"));
1997     }
1998
1999     return value;
2000 }
2001
2002 // For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
2003 #if wxUSE_TIMEDATE && !defined(__WATCOMC__)
2004 wxTime wxVariant::GetTime() const
2005 {
2006     wxTime value;
2007     if (!Convert(& value))
2008     {
2009         wxFAIL_MSG(wxT("Could not convert to a time"));
2010     }
2011
2012     return value;
2013 }
2014
2015 wxDate wxVariant::GetDate() const
2016 {
2017     wxDate value;
2018     if (!Convert(& value))
2019     {
2020         wxFAIL_MSG(wxT("Could not convert to a date"));
2021     }
2022
2023     return value;
2024 }
2025 #endif // wxUSE_TIMEDATE
2026
2027 void* wxVariant::GetVoidPtr() const
2028 {
2029     wxASSERT( (GetType() == wxT("void*")) );
2030
2031     return (void*) ((wxVariantDataVoidPtr*) m_data)->GetValue();
2032 }
2033
2034 wxDateTime wxVariant::GetDateTime() const
2035 {
2036     wxDateTime value;
2037     if (!Convert(& value))
2038     {
2039         wxFAIL_MSG(wxT("Could not convert to a datetime"));
2040     }
2041
2042     return value;
2043 }
2044
2045 wxList& wxVariant::GetList() const
2046 {
2047     wxASSERT( (GetType() == wxT("list")) );
2048
2049     return (wxList&) ((wxVariantDataList*) m_data)->GetValue();
2050 }
2051
2052 wxStringList& wxVariant::GetStringList() const
2053 {
2054     wxASSERT( (GetType() == wxT("stringlist")) );
2055
2056     return (wxStringList&) ((wxVariantDataStringList*) m_data)->GetValue();
2057 }
2058
2059 // Make empty list
2060 void wxVariant::NullList()
2061 {
2062     SetData(new wxVariantDataList());
2063 };
2064
2065 // Append to list
2066 void wxVariant::Append(const wxVariant& value)
2067 {
2068     wxList& list = GetList();
2069
2070     list.Append(new wxVariant(value));
2071 }
2072
2073 // Insert at front of list
2074 void wxVariant::Insert(const wxVariant& value)
2075 {
2076     wxList& list = GetList();
2077
2078     list.Insert(new wxVariant(value));
2079 }
2080
2081 // Returns true if the variant is a member of the list
2082 bool wxVariant::Member(const wxVariant& value) const
2083 {
2084     wxList& list = GetList();
2085
2086     wxNode* node = list.GetFirst();
2087     while (node)
2088     {
2089         wxVariant* other = (wxVariant*) node->GetData();
2090         if (value == *other)
2091             return true;
2092         node = node->GetNext();
2093     }
2094     return false;
2095 }
2096
2097 // Deletes the nth element of the list
2098 bool wxVariant::Delete(int item)
2099 {
2100     wxList& list = GetList();
2101
2102     wxASSERT_MSG( (item < (int) list.GetCount()), wxT("Invalid index to Delete") );
2103     wxNode* node = list.Item(item);
2104     wxVariant* variant = (wxVariant*) node->GetData();
2105     delete variant;
2106     delete node;
2107     return true;
2108 }
2109
2110 // Clear list
2111 void wxVariant::ClearList()
2112 {
2113     if (!IsNull() && (GetType() == wxT("list")))
2114     {
2115         ((wxVariantDataList*) m_data)->Clear();
2116     }
2117     else
2118     {
2119         if (GetType() != wxT("list"))
2120         {
2121             delete m_data;
2122             m_data = NULL;
2123         }
2124         m_data = new wxVariantDataList;
2125     }
2126 }
2127
2128 // Type conversion
2129 bool wxVariant::Convert(long* value) const
2130 {
2131     wxString type(GetType());
2132     if (type == wxT("double"))
2133         *value = (long) (((wxVariantDataReal*)GetData())->GetValue());
2134     else if (type == wxT("long"))
2135         *value = ((wxVariantDataLong*)GetData())->GetValue();
2136 #ifdef HAVE_BOOL
2137     else if (type == wxT("bool"))
2138         *value = (long) (((wxVariantDataBool*)GetData())->GetValue());
2139 #endif
2140     else if (type == wxT("string"))
2141         *value = wxAtol((const wxChar*) ((wxVariantDataString*)GetData())->GetValue());
2142     else
2143         return false;
2144
2145     return true;
2146 }
2147
2148 bool wxVariant::Convert(bool* value) const
2149 {
2150     wxString type(GetType());
2151     if (type == wxT("double"))
2152         *value = ((int) (((wxVariantDataReal*)GetData())->GetValue()) != 0);
2153     else if (type == wxT("long"))
2154         *value = (((wxVariantDataLong*)GetData())->GetValue() != 0);
2155 #ifdef HAVE_BOOL
2156     else if (type == wxT("bool"))
2157         *value = ((wxVariantDataBool*)GetData())->GetValue();
2158 #endif
2159     else if (type == wxT("string"))
2160     {
2161         wxString val(((wxVariantDataString*)GetData())->GetValue());
2162         val.MakeLower();
2163         if (val == wxT("true") || val == wxT("yes"))
2164             *value = true;
2165         else if (val == wxT("false") || val == wxT("no"))
2166             *value = false;
2167         else
2168             return false;
2169     }
2170     else
2171         return false;
2172
2173     return true;
2174 }
2175
2176 bool wxVariant::Convert(double* value) const
2177 {
2178     wxString type(GetType());
2179     if (type == wxT("double"))
2180         *value = ((wxVariantDataReal*)GetData())->GetValue();
2181     else if (type == wxT("long"))
2182         *value = (double) (((wxVariantDataLong*)GetData())->GetValue());
2183 #ifdef HAVE_BOOL
2184     else if (type == wxT("bool"))
2185         *value = (double) (((wxVariantDataBool*)GetData())->GetValue());
2186 #endif
2187     else if (type == wxT("string"))
2188         *value = (double) wxAtof((const wxChar*) ((wxVariantDataString*)GetData())->GetValue());
2189     else
2190         return false;
2191
2192     return true;
2193 }
2194
2195 bool wxVariant::Convert(char* value) const
2196 {
2197     wxString type(GetType());
2198     if (type == wxT("char"))
2199         *value = ((wxVariantDataChar*)GetData())->GetValue();
2200     else if (type == wxT("long"))
2201         *value = (char) (((wxVariantDataLong*)GetData())->GetValue());
2202 #ifdef HAVE_BOOL
2203     else if (type == wxT("bool"))
2204         *value = (char) (((wxVariantDataBool*)GetData())->GetValue());
2205 #endif
2206     else
2207         return false;
2208
2209     return true;
2210 }
2211
2212 bool wxVariant::Convert(wxString* value) const
2213 {
2214     *value = MakeString();
2215     return true;
2216 }
2217
2218 // For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
2219 #if wxUSE_TIMEDATE && !defined(__WATCOMC__)
2220 bool wxVariant::Convert(wxTime* value) const
2221 {
2222     wxString type(GetType());
2223     if (type == wxT("time"))
2224         *value = ((wxVariantDataTime*)GetData())->GetValue();
2225     else if (type == wxT("date"))
2226         *value = wxTime(((wxVariantDataDate*)GetData())->GetValue());
2227     else
2228         return false;
2229
2230     return true;
2231 }
2232
2233 bool wxVariant::Convert(wxDate* value) const
2234 {
2235     wxString type(GetType());
2236     if (type == wxT("date"))
2237         *value = ((wxVariantDataDate*)GetData())->GetValue();
2238     else
2239         return false;
2240
2241     return true;
2242 }
2243 #endif // wxUSE_TIMEDATE
2244
2245 bool wxVariant::Convert(wxDateTime* value) const
2246 {
2247     wxString type(GetType());
2248     if (type == wxT("datetime"))
2249     {
2250         *value = ((wxVariantDataDateTime*)GetData())->GetValue();
2251         return true;
2252     }
2253     // Fallback to string conversion
2254     wxString val;
2255     return Convert(&val) && (value->ParseDate(val));
2256 }