src/common/variant.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/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 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #include "wx/variant.h"
  20
  21 #if wxUSE_VARIANT
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/string.h"
  25     #include "wx/math.h"
  26     #include "wx/crt.h"
  27     #if wxUSE_STREAMS
  28         #include "wx/stream.h"
  29     #endif
  30 #endif
  31
  32 #if wxUSE_STD_IOSTREAM
  33     #if wxUSE_IOSTREAMH
  34         #include <fstream.h>
  35     #else
  36         #include <fstream>
  37     #endif
  38 #endif
  39
  40 #if defined(__MWERKS__) && __MSL__ >= 0x6000
  41 namespace std {}
  42 using namespace std ;
  43 #endif
  44
  45 #if wxUSE_STREAMS
  46     #include "wx/txtstrm.h"
  47 #endif
  48
  49 #include "wx/string.h"
  50 #include "wx/tokenzr.h"
  51
  52 wxVariant WXDLLIMPEXP_BASE wxNullVariant;
  53
  54
  55 #include "wx/listimpl.cpp"
  56 WX_DEFINE_LIST(wxVariantList)
  57
  58 /*
  59  * wxVariant
  60  */
  61
  62 IMPLEMENT_DYNAMIC_CLASS(wxVariant, wxObject)
  63
  64 wxVariant::wxVariant()
  65     : wxObject()
  66 {
  67 }
  68
  69 bool wxVariant::IsNull() const
  70 {
  71      return (m_refData == NULL);
  72 }
  73
  74 void wxVariant::MakeNull()
  75 {
  76     UnRef();
  77 }
  78
  79 void wxVariant::Clear()
  80 {
  81     m_name = wxEmptyString;
  82 }
  83
  84 wxVariant::wxVariant(const wxVariant& variant)
  85     : wxObject()
  86 {
  87     if (!variant.IsNull())
  88         Ref(variant);
  89
  90     m_name = variant.m_name;
  91 }
  92
  93 wxVariant::wxVariant(wxVariantData* data, const wxString& name) // User-defined data
  94     : wxObject()
  95 {
  96     m_refData = data;
  97     m_name = name;
  98 }
  99
 100 wxVariant::~wxVariant()
 101 {
 102 }
 103
 104 wxObjectRefData *wxVariant::CreateRefData() const
 105 {
 106     // We cannot create any particular wxVariantData.
 107     wxFAIL_MSG("wxVariant::CreateRefData() cannot be implemented");
 108     return NULL;
 109 }
 110
 111 wxObjectRefData *wxVariant::CloneRefData(const wxObjectRefData *data) const
 112 {
 113     return ((wxVariantData*) data)->Clone();
 114 }
 115
 116 // Assignment
 117 void wxVariant::operator= (const wxVariant& variant)
 118 {
 119     Ref(variant);
 120     m_name = variant.m_name;
 121 }
 122
 123 // myVariant = new wxStringVariantData("hello")
 124 void wxVariant::operator= (wxVariantData* variantData)
 125 {
 126     UnRef();
 127     m_refData = variantData;
 128 }
 129
 130 bool wxVariant::operator== (const wxVariant& variant) const
 131 {
 132     if (IsNull() || variant.IsNull())
 133         return (IsNull() == variant.IsNull());
 134
 135     if (GetType() != variant.GetType())
 136         return false;
 137
 138     return (GetData()->Eq(* variant.GetData()));
 139 }
 140
 141 bool wxVariant::operator!= (const wxVariant& variant) const
 142 {
 143     return (!(*this == variant));
 144 }
 145
 146 wxString wxVariant::MakeString() const
 147 {
 148     if (!IsNull())
 149     {
 150         wxString str;
 151         if (GetData()->Write(str))
 152             return str;
 153     }
 154     return wxEmptyString;
 155 }
 156
 157 void wxVariant::SetData(wxVariantData* data)
 158 {
 159     UnRef();
 160     m_refData = data;
 161 }
 162
 163 bool wxVariant::Unshare()
 164 {
 165     if ( !m_refData || m_refData->GetRefCount() == 1 )
 166         return true;
 167
 168     wxObject::UnShare();
 169
 170     return (m_refData && m_refData->GetRefCount() == 1);
 171 }
 172
 173
 174 // Returns a string representing the type of the variant,
 175 // e.g. "string", "bool", "list", "double", "long"
 176 wxString wxVariant::GetType() const
 177 {
 178     if (IsNull())
 179         return wxString(wxT("null"));
 180     else
 181         return GetData()->GetType();
 182 }
 183
 184
 185 bool wxVariant::IsType(const wxString& type) const
 186 {
 187     return (GetType() == type);
 188 }
 189
 190 bool wxVariant::IsValueKindOf(const wxClassInfo* type) const
 191 {
 192     wxClassInfo* info=GetData()->GetValueClassInfo();
 193     return info ? info->IsKindOf(type) : false ;
 194 }
 195
 196
 197 // -----------------------------------------------------------------
 198 // wxVariantDataLong
 199 // -----------------------------------------------------------------
 200
 201 class WXDLLIMPEXP_BASE wxVariantDataLong: public wxVariantData
 202 {
 203 public:
 204     wxVariantDataLong() { m_value = 0; }
 205     wxVariantDataLong(long value) { m_value = value; }
 206
 207     inline long GetValue() const { return m_value; }
 208     inline void SetValue(long value) { m_value = value; }
 209
 210     virtual bool Eq(wxVariantData& data) const;
 211
 212     virtual bool Read(wxString& str);
 213     virtual bool Write(wxString& str) const;
 214 #if wxUSE_STD_IOSTREAM
 215     virtual bool Read(wxSTD istream& str);
 216     virtual bool Write(wxSTD ostream& str) const;
 217 #endif
 218 #if wxUSE_STREAMS
 219     virtual bool Read(wxInputStream& str);
 220     virtual bool Write(wxOutputStream &str) const;
 221 #endif // wxUSE_STREAMS
 222
 223     wxVariantData* Clone() const { return new wxVariantDataLong(m_value); }
 224
 225     virtual wxString GetType() const { return wxT("long"); }
 226
 227 protected:
 228     long m_value;
 229 };
 230
 231 bool wxVariantDataLong::Eq(wxVariantData& data) const
 232 {
 233     wxASSERT_MSG( (data.GetType() == wxT("long")), wxT("wxVariantDataLong::Eq: argument mismatch") );
 234
 235     wxVariantDataLong& otherData = (wxVariantDataLong&) data;
 236
 237     return (otherData.m_value == m_value);
 238 }
 239
 240 #if wxUSE_STD_IOSTREAM
 241 bool wxVariantDataLong::Write(wxSTD ostream& str) const
 242 {
 243     wxString s;
 244     Write(s);
 245     str << (const char*) s.mb_str();
 246     return true;
 247 }
 248 #endif
 249
 250 bool wxVariantDataLong::Write(wxString& str) const
 251 {
 252     str.Printf(wxT("%ld"), m_value);
 253     return true;
 254 }
 255
 256 #if wxUSE_STD_IOSTREAM
 257 bool wxVariantDataLong::Read(wxSTD istream& str)
 258 {
 259     str >> m_value;
 260     return true;
 261 }
 262 #endif
 263
 264 #if wxUSE_STREAMS
 265 bool wxVariantDataLong::Write(wxOutputStream& str) const
 266 {
 267     wxTextOutputStream s(str);
 268
 269     s.Write32((size_t)m_value);
 270     return true;
 271 }
 272
 273 bool wxVariantDataLong::Read(wxInputStream& str)
 274 {
 275    wxTextInputStream s(str);
 276    m_value = s.Read32();
 277    return true;
 278 }
 279 #endif // wxUSE_STREAMS
 280
 281 bool wxVariantDataLong::Read(wxString& str)
 282 {
 283     m_value = wxAtol(str);
 284     return true;
 285 }
 286
 287 // wxVariant
 288
 289 wxVariant::wxVariant(long val, const wxString& name)
 290 {
 291     m_refData = new wxVariantDataLong(val);
 292     m_name = name;
 293 }
 294
 295 wxVariant::wxVariant(int val, const wxString& name)
 296 {
 297     m_refData = new wxVariantDataLong((long)val);
 298     m_name = name;
 299 }
 300
 301 wxVariant::wxVariant(short val, const wxString& name)
 302 {
 303     m_refData = new wxVariantDataLong((long)val);
 304     m_name = name;
 305 }
 306
 307 bool wxVariant::operator== (long value) const
 308 {
 309     long thisValue;
 310     if (!Convert(&thisValue))
 311         return false;
 312     else
 313         return (value == thisValue);
 314 }
 315
 316 bool wxVariant::operator!= (long value) const
 317 {
 318     return (!((*this) == value));
 319 }
 320
 321 void wxVariant::operator= (long value)
 322 {
 323     if (GetType() == wxT("long") &&
 324         m_refData->GetRefCount() == 1)
 325     {
 326         ((wxVariantDataLong*)GetData())->SetValue(value);
 327     }
 328     else
 329     {
 330         UnRef();
 331         m_refData = new wxVariantDataLong(value);
 332     }
 333 }
 334
 335 long wxVariant::GetLong() const
 336 {
 337     long value;
 338     if (Convert(& value))
 339         return value;
 340     else
 341     {
 342         wxFAIL_MSG(wxT("Could not convert to a long"));
 343         return 0;
 344     }
 345 }
 346
 347 // -----------------------------------------------------------------
 348 // wxVariantDoubleData
 349 // -----------------------------------------------------------------
 350
 351 class WXDLLIMPEXP_BASE wxVariantDoubleData: public wxVariantData
 352 {
 353 public:
 354     wxVariantDoubleData() { m_value = 0.0; }
 355     wxVariantDoubleData(double value) { m_value = value; }
 356
 357     inline double GetValue() const { return m_value; }
 358     inline void SetValue(double value) { m_value = value; }
 359
 360     virtual bool Eq(wxVariantData& data) const;
 361     virtual bool Read(wxString& str);
 362 #if wxUSE_STD_IOSTREAM
 363     virtual bool Write(wxSTD ostream& str) const;
 364 #endif
 365     virtual bool Write(wxString& str) const;
 366 #if wxUSE_STD_IOSTREAM
 367     virtual bool Read(wxSTD istream& str);
 368 #endif
 369 #if wxUSE_STREAMS
 370     virtual bool Read(wxInputStream& str);
 371     virtual bool Write(wxOutputStream &str) const;
 372 #endif // wxUSE_STREAMS
 373     virtual wxString GetType() const { return wxT("double"); }
 374
 375     wxVariantData* Clone() const { return new wxVariantDoubleData(m_value); }
 376 protected:
 377     double m_value;
 378 };
 379
 380 bool wxVariantDoubleData::Eq(wxVariantData& data) const
 381 {
 382     wxASSERT_MSG( (data.GetType() == wxT("double")), wxT("wxVariantDoubleData::Eq: argument mismatch") );
 383
 384     wxVariantDoubleData& otherData = (wxVariantDoubleData&) data;
 385
 386     return wxIsSameDouble(otherData.m_value, m_value);
 387 }
 388
 389 #if wxUSE_STD_IOSTREAM
 390 bool wxVariantDoubleData::Write(wxSTD ostream& str) const
 391 {
 392     wxString s;
 393     Write(s);
 394     str << (const char*) s.mb_str();
 395     return true;
 396 }
 397 #endif
 398
 399 bool wxVariantDoubleData::Write(wxString& str) const
 400 {
 401     str.Printf(wxT("%.14g"), m_value);
 402     return true;
 403 }
 404
 405 #if wxUSE_STD_IOSTREAM
 406 bool wxVariantDoubleData::Read(wxSTD istream& str)
 407 {
 408     str >> m_value;
 409     return true;
 410 }
 411 #endif
 412
 413 #if wxUSE_STREAMS
 414 bool wxVariantDoubleData::Write(wxOutputStream& str) const
 415 {
 416     wxTextOutputStream s(str);
 417     s.WriteDouble((double)m_value);
 418     return true;
 419 }
 420
 421 bool wxVariantDoubleData::Read(wxInputStream& str)
 422 {
 423     wxTextInputStream s(str);
 424     m_value = (float)s.ReadDouble();
 425     return true;
 426 }
 427 #endif // wxUSE_STREAMS
 428
 429 bool wxVariantDoubleData::Read(wxString& str)
 430 {
 431     m_value = wxAtof(str);
 432     return true;
 433 }
 434
 435 //  wxVariant double code
 436
 437 wxVariant::wxVariant(double val, const wxString& name)
 438 {
 439     m_refData = new wxVariantDoubleData(val);
 440     m_name = name;
 441 }
 442
 443 bool wxVariant::operator== (double value) const
 444 {
 445     double thisValue;
 446     if (!Convert(&thisValue))
 447         return false;
 448
 449     return wxIsSameDouble(value, thisValue);
 450 }
 451
 452 bool wxVariant::operator!= (double value) const
 453 {
 454     return (!((*this) == value));
 455 }
 456
 457 void wxVariant::operator= (double value)
 458 {
 459     if (GetType() == wxT("double") &&
 460         m_refData->GetRefCount() == 1)
 461     {
 462         ((wxVariantDoubleData*)GetData())->SetValue(value);
 463     }
 464     else
 465     {
 466         UnRef();
 467         m_refData = new wxVariantDoubleData(value);
 468     }
 469 }
 470
 471 double wxVariant::GetDouble() const
 472 {
 473     double value;
 474     if (Convert(& value))
 475         return value;
 476     else
 477     {
 478         wxFAIL_MSG(wxT("Could not convert to a double number"));
 479         return 0.0;
 480     }
 481 }
 482
 483 // -----------------------------------------------------------------
 484 // wxVariantBoolData
 485 // -----------------------------------------------------------------
 486
 487 class WXDLLIMPEXP_BASE wxVariantDataBool: public wxVariantData
 488 {
 489 public:
 490     wxVariantDataBool() { m_value = 0; }
 491     wxVariantDataBool(bool value) { m_value = value; }
 492
 493     inline bool GetValue() const { return m_value; }
 494     inline void SetValue(bool value) { m_value = value; }
 495
 496     virtual bool Eq(wxVariantData& data) const;
 497 #if wxUSE_STD_IOSTREAM
 498     virtual bool Write(wxSTD ostream& str) const;
 499 #endif
 500     virtual bool Write(wxString& str) const;
 501     virtual bool Read(wxString& str);
 502 #if wxUSE_STD_IOSTREAM
 503     virtual bool Read(wxSTD istream& str);
 504 #endif
 505 #if wxUSE_STREAMS
 506     virtual bool Read(wxInputStream& str);
 507     virtual bool Write(wxOutputStream& str) const;
 508 #endif // wxUSE_STREAMS
 509     virtual wxString GetType() const { return wxT("bool"); }
 510
 511     wxVariantData* Clone() const { return new wxVariantDataBool(m_value); }
 512 protected:
 513     bool m_value;
 514 };
 515
 516 bool wxVariantDataBool::Eq(wxVariantData& data) const
 517 {
 518     wxASSERT_MSG( (data.GetType() == wxT("bool")), wxT("wxVariantDataBool::Eq: argument mismatch") );
 519
 520     wxVariantDataBool& otherData = (wxVariantDataBool&) data;
 521
 522     return (otherData.m_value == m_value);
 523 }
 524
 525 #if wxUSE_STD_IOSTREAM
 526 bool wxVariantDataBool::Write(wxSTD ostream& str) const
 527 {
 528     wxString s;
 529     Write(s);
 530     str << (const char*) s.mb_str();
 531     return true;
 532 }
 533 #endif
 534
 535 bool wxVariantDataBool::Write(wxString& str) const
 536 {
 537     str.Printf(wxT("%d"), (int) m_value);
 538     return true;
 539 }
 540
 541 #if wxUSE_STD_IOSTREAM
 542 bool wxVariantDataBool::Read(wxSTD istream& WXUNUSED(str))
 543 {
 544     wxFAIL_MSG(wxT("Unimplemented"));
 545 //    str >> (long) m_value;
 546     return false;
 547 }
 548 #endif
 549
 550 #if wxUSE_STREAMS
 551 bool wxVariantDataBool::Write(wxOutputStream& str) const
 552 {
 553     wxTextOutputStream s(str);
 554
 555     s.Write8(m_value);
 556     return true;
 557 }
 558
 559 bool wxVariantDataBool::Read(wxInputStream& str)
 560 {
 561     wxTextInputStream s(str);
 562
 563     m_value = s.Read8() != 0;
 564     return true;
 565 }
 566 #endif // wxUSE_STREAMS
 567
 568 bool wxVariantDataBool::Read(wxString& str)
 569 {
 570     m_value = (wxAtol(str) != 0);
 571     return true;
 572 }
 573
 574 // wxVariant ****
 575
 576 wxVariant::wxVariant(bool val, const wxString& name)
 577 {
 578     m_refData = new wxVariantDataBool(val);
 579     m_name = name;
 580 }
 581
 582 bool wxVariant::operator== (bool value) const
 583 {
 584     bool thisValue;
 585     if (!Convert(&thisValue))
 586         return false;
 587     else
 588         return (value == thisValue);
 589 }
 590
 591 bool wxVariant::operator!= (bool value) const
 592 {
 593     return (!((*this) == value));
 594 }
 595
 596 void wxVariant::operator= (bool value)
 597 {
 598     if (GetType() == wxT("bool") &&
 599         m_refData->GetRefCount() == 1)
 600     {
 601         ((wxVariantDataBool*)GetData())->SetValue(value);
 602     }
 603     else
 604     {
 605         UnRef();
 606         m_refData = new wxVariantDataBool(value);
 607     }
 608 }
 609
 610 bool wxVariant::GetBool() const
 611 {
 612     bool value;
 613     if (Convert(& value))
 614         return value;
 615     else
 616     {
 617         wxFAIL_MSG(wxT("Could not convert to a bool"));
 618         return 0;
 619     }
 620 }
 621
 622 // -----------------------------------------------------------------
 623 // wxVariantDataChar
 624 // -----------------------------------------------------------------
 625
 626 class WXDLLIMPEXP_BASE wxVariantDataChar: public wxVariantData
 627 {
 628 public:
 629     wxVariantDataChar() { m_value = 0; }
 630     wxVariantDataChar(const wxUniChar& value) { m_value = value; }
 631
 632     inline wxUniChar GetValue() const { return m_value; }
 633     inline void SetValue(const wxUniChar& value) { m_value = value; }
 634
 635     virtual bool Eq(wxVariantData& data) const;
 636 #if wxUSE_STD_IOSTREAM
 637     virtual bool Read(wxSTD istream& str);
 638     virtual bool Write(wxSTD ostream& str) const;
 639 #endif
 640     virtual bool Read(wxString& str);
 641     virtual bool Write(wxString& str) const;
 642 #if wxUSE_STREAMS
 643     virtual bool Read(wxInputStream& str);
 644     virtual bool Write(wxOutputStream& str) const;
 645 #endif // wxUSE_STREAMS
 646     virtual wxString GetType() const { return wxT("char"); }
 647     wxVariantData* Clone() const { return new wxVariantDataChar(m_value); }
 648
 649 protected:
 650     wxUniChar m_value;
 651 };
 652
 653 bool wxVariantDataChar::Eq(wxVariantData& data) const
 654 {
 655     wxASSERT_MSG( (data.GetType() == wxT("char")), wxT("wxVariantDataChar::Eq: argument mismatch") );
 656
 657     wxVariantDataChar& otherData = (wxVariantDataChar&) data;
 658
 659     return (otherData.m_value == m_value);
 660 }
 661
 662 #if wxUSE_STD_IOSTREAM
 663 bool wxVariantDataChar::Write(wxSTD ostream& str) const
 664 {
 665     str << wxString(m_value);
 666     return true;
 667 }
 668 #endif
 669
 670 bool wxVariantDataChar::Write(wxString& str) const
 671 {
 672     str = m_value;
 673     return true;
 674 }
 675
 676 #if wxUSE_STD_IOSTREAM
 677 bool wxVariantDataChar::Read(wxSTD istream& WXUNUSED(str))
 678 {
 679     wxFAIL_MSG(wxT("Unimplemented"));
 680
 681     return false;
 682 }
 683 #endif
 684
 685 #if wxUSE_STREAMS
 686 bool wxVariantDataChar::Write(wxOutputStream& str) const
 687 {
 688     wxTextOutputStream s(str);
 689
 690     // FIXME-UTF8: this should be just "s << m_value;" after removal of
 691     //             ANSI build and addition of wxUniChar to wxTextOutputStream:
 692     s << (wxChar)m_value;
 693
 694     return true;
 695 }
 696
 697 bool wxVariantDataChar::Read(wxInputStream& str)
 698 {
 699     wxTextInputStream s(str);
 700
 701     // FIXME-UTF8: this should be just "s >> m_value;" after removal of
 702     //             ANSI build and addition of wxUniChar to wxTextInputStream:
 703     wxChar ch;
 704     s >> ch;
 705     m_value = ch;
 706
 707     return true;
 708 }
 709 #endif // wxUSE_STREAMS
 710
 711 bool wxVariantDataChar::Read(wxString& str)
 712 {
 713     m_value = str[0u];
 714     return true;
 715 }
 716
 717 wxVariant::wxVariant(const wxUniChar& val, const wxString& name)
 718 {
 719     m_refData = new wxVariantDataChar(val);
 720     m_name = name;
 721 }
 722
 723 wxVariant::wxVariant(char val, const wxString& name)
 724 {
 725     m_refData = new wxVariantDataChar(val);
 726     m_name = name;
 727 }
 728
 729 wxVariant::wxVariant(wchar_t val, const wxString& name)
 730 {
 731     m_refData = new wxVariantDataChar(val);
 732     m_name = name;
 733 }
 734
 735 bool wxVariant::operator==(const wxUniChar& value) const
 736 {
 737     wxUniChar thisValue;
 738     if (!Convert(&thisValue))
 739         return false;
 740     else
 741         return (value == thisValue);
 742 }
 743
 744 wxVariant& wxVariant::operator=(const wxUniChar& value)
 745 {
 746     if (GetType() == wxT("char") &&
 747         m_refData->GetRefCount() == 1)
 748     {
 749         ((wxVariantDataChar*)GetData())->SetValue(value);
 750     }
 751     else
 752     {
 753         UnRef();
 754         m_refData = new wxVariantDataChar(value);
 755     }
 756
 757     return *this;
 758 }
 759
 760 wxUniChar wxVariant::GetChar() const
 761 {
 762     wxUniChar value;
 763     if (Convert(& value))
 764         return value;
 765     else
 766     {
 767         wxFAIL_MSG(wxT("Could not convert to a char"));
 768         return wxUniChar(0);
 769     }
 770 }
 771
 772 // ----------------------------------------------------------------------------
 773 // wxVariantDataString
 774 // ----------------------------------------------------------------------------
 775
 776 class WXDLLIMPEXP_BASE wxVariantDataString: public wxVariantData
 777 {
 778 public:
 779     wxVariantDataString() { }
 780     wxVariantDataString(const wxString& value) { m_value = value; }
 781
 782     inline wxString GetValue() const { return m_value; }
 783     inline void SetValue(const wxString& value) { m_value = value; }
 784
 785     virtual bool Eq(wxVariantData& data) const;
 786 #if wxUSE_STD_IOSTREAM
 787     virtual bool Write(wxSTD ostream& str) const;
 788 #endif
 789     virtual bool Read(wxString& str);
 790     virtual bool Write(wxString& str) const;
 791 #if wxUSE_STD_IOSTREAM
 792     virtual bool Read(wxSTD istream& WXUNUSED(str)) { return false; }
 793 #endif
 794 #if wxUSE_STREAMS
 795     virtual bool Read(wxInputStream& str);
 796     virtual bool Write(wxOutputStream& str) const;
 797 #endif // wxUSE_STREAMS
 798     virtual wxString GetType() const { return wxT("string"); }
 799     wxVariantData* Clone() const { return new wxVariantDataString(m_value); }
 800
 801 protected:
 802     wxString m_value;
 803 };
 804
 805 bool wxVariantDataString::Eq(wxVariantData& data) const
 806 {
 807     wxASSERT_MSG( (data.GetType() == wxT("string")), wxT("wxVariantDataString::Eq: argument mismatch") );
 808
 809     wxVariantDataString& otherData = (wxVariantDataString&) data;
 810
 811     return (otherData.m_value == m_value);
 812 }
 813
 814 #if wxUSE_STD_IOSTREAM
 815 bool wxVariantDataString::Write(wxSTD ostream& str) const
 816 {
 817     str << (const char*) m_value.mb_str();
 818     return true;
 819 }
 820 #endif
 821
 822 bool wxVariantDataString::Write(wxString& str) const
 823 {
 824     str = m_value;
 825     return true;
 826 }
 827
 828 #if wxUSE_STREAMS
 829 bool wxVariantDataString::Write(wxOutputStream& str) const
 830 {
 831   // why doesn't wxOutputStream::operator<< take "const wxString&"
 832     wxTextOutputStream s(str);
 833     s.WriteString(m_value);
 834     return true;
 835 }
 836
 837 bool wxVariantDataString::Read(wxInputStream& str)
 838 {
 839     wxTextInputStream s(str);
 840
 841     m_value = s.ReadLine();
 842     return true;
 843 }
 844 #endif // wxUSE_STREAMS
 845
 846 bool wxVariantDataString::Read(wxString& str)
 847 {
 848     m_value = str;
 849     return true;
 850 }
 851
 852 // wxVariant ****
 853
 854 wxVariant::wxVariant(const wxString& val, const wxString& name)
 855 {
 856     m_refData = new wxVariantDataString(val);
 857     m_name = name;
 858 }
 859
 860 wxVariant::wxVariant(const char* val, const wxString& name)
 861 {
 862     m_refData = new wxVariantDataString(wxString(val));
 863     m_name = name;
 864 }
 865
 866 wxVariant::wxVariant(const wchar_t* val, const wxString& name)
 867 {
 868     m_refData = new wxVariantDataString(wxString(val));
 869     m_name = name;
 870 }
 871
 872 wxVariant::wxVariant(const wxCStrData& val, const wxString& name)
 873 {
 874     m_refData = new wxVariantDataString(val.AsString());
 875     m_name = name;
 876 }
 877
 878 wxVariant::wxVariant(const wxScopedCharBuffer& val, const wxString& name)
 879 {
 880     m_refData = new wxVariantDataString(wxString(val));
 881     m_name = name;
 882 }
 883
 884 wxVariant::wxVariant(const wxScopedWCharBuffer& val, const wxString& name)
 885 {
 886     m_refData = new wxVariantDataString(wxString(val));
 887     m_name = name;
 888 }
 889
 890 bool wxVariant::operator== (const wxString& value) const
 891 {
 892     wxString thisValue;
 893     if (!Convert(&thisValue))
 894         return false;
 895
 896     return value == thisValue;
 897 }
 898
 899 bool wxVariant::operator!= (const wxString& value) const
 900 {
 901     return (!((*this) == value));
 902 }
 903
 904 wxVariant& wxVariant::operator= (const wxString& value)
 905 {
 906     if (GetType() == wxT("string") &&
 907         m_refData->GetRefCount() == 1)
 908     {
 909         ((wxVariantDataString*)GetData())->SetValue(value);
 910     }
 911     else
 912     {
 913         UnRef();
 914         m_refData = new wxVariantDataString(value);
 915     }
 916     return *this;
 917 }
 918
 919 wxString wxVariant::GetString() const
 920 {
 921     wxString value;
 922     if (!Convert(& value))
 923     {
 924         wxFAIL_MSG(wxT("Could not convert to a string"));
 925     }
 926
 927     return value;
 928 }
 929
 930 // ----------------------------------------------------------------------------
 931 // wxVariantDataWxObjectPtr
 932 // ----------------------------------------------------------------------------
 933
 934 class wxVariantDataWxObjectPtr: public wxVariantData
 935 {
 936 public:
 937     wxVariantDataWxObjectPtr() { }
 938     wxVariantDataWxObjectPtr(wxObject* value) { m_value = value; }
 939
 940     inline wxObject* GetValue() const { return m_value; }
 941     inline void SetValue(wxObject* value) { m_value = value; }
 942
 943     virtual bool Eq(wxVariantData& data) const;
 944 #if wxUSE_STD_IOSTREAM
 945     virtual bool Write(wxSTD ostream& str) const;
 946 #endif
 947     virtual bool Write(wxString& str) const;
 948 #if wxUSE_STD_IOSTREAM
 949     virtual bool Read(wxSTD istream& str);
 950 #endif
 951     virtual bool Read(wxString& str);
 952     virtual wxString GetType() const ;
 953     virtual wxVariantData* Clone() const { return new wxVariantDataWxObjectPtr(m_value); }
 954
 955     virtual wxClassInfo* GetValueClassInfo();
 956
 957 protected:
 958     wxObject* m_value;
 959 };
 960
 961 bool wxVariantDataWxObjectPtr::Eq(wxVariantData& data) const
 962 {
 963     wxASSERT_MSG( data.GetType() == GetType(), wxT("wxVariantDataWxObjectPtr::Eq: argument mismatch") );
 964
 965     wxVariantDataWxObjectPtr& otherData = (wxVariantDataWxObjectPtr&) data;
 966
 967     return (otherData.m_value == m_value);
 968 }
 969
 970 wxString wxVariantDataWxObjectPtr::GetType() const
 971 {
 972     wxString returnVal(wxT("wxObject*"));
 973
 974     if (m_value)
 975     {
 976         returnVal = m_value->GetClassInfo()->GetClassName();
 977         returnVal += wxT("*");
 978     }
 979
 980     return returnVal;
 981 }
 982
 983 wxClassInfo* wxVariantDataWxObjectPtr::GetValueClassInfo()
 984 {
 985     wxClassInfo* returnVal=NULL;
 986
 987     if (m_value) returnVal = m_value->GetClassInfo();
 988
 989     return returnVal;
 990 }
 991
 992 #if wxUSE_STD_IOSTREAM
 993 bool wxVariantDataWxObjectPtr::Write(wxSTD ostream& str) const
 994 {
 995     wxString s;
 996     Write(s);
 997     str << (const char*) s.mb_str();
 998     return true;
 999 }
1000 #endif
1001
1002 bool wxVariantDataWxObjectPtr::Write(wxString& str) const
1003 {
1004     str.Printf(wxT("%s(%p)"), GetType().c_str(), static_cast<void*>(m_value));
1005     return true;
1006 }
1007
1008 #if wxUSE_STD_IOSTREAM
1009 bool wxVariantDataWxObjectPtr::Read(wxSTD istream& WXUNUSED(str))
1010 {
1011     // Not implemented
1012     return false;
1013 }
1014 #endif
1015
1016 bool wxVariantDataWxObjectPtr::Read(wxString& WXUNUSED(str))
1017 {
1018     // Not implemented
1019     return false;
1020 }
1021
1022 // wxVariant
1023
1024 wxVariant::wxVariant( wxObject* val, const wxString& name)
1025 {
1026     m_refData = new wxVariantDataWxObjectPtr(val);
1027     m_name = name;
1028 }
1029
1030 bool wxVariant::operator== (wxObject* value) const
1031 {
1032     return (value == ((wxVariantDataWxObjectPtr*)GetData())->GetValue());
1033 }
1034
1035 bool wxVariant::operator!= (wxObject* value) const
1036 {
1037     return (!((*this) == (wxObject*) value));
1038 }
1039
1040 void wxVariant::operator= (wxObject* value)
1041 {
1042     UnRef();
1043     m_refData = new wxVariantDataWxObjectPtr(value);
1044 }
1045
1046 wxObject* wxVariant::GetWxObjectPtr() const
1047 {
1048     return (wxObject*) ((wxVariantDataWxObjectPtr*) m_refData)->GetValue();
1049 }
1050
1051 // ----------------------------------------------------------------------------
1052 // wxVariantDataVoidPtr
1053 // ----------------------------------------------------------------------------
1054
1055 class wxVariantDataVoidPtr: public wxVariantData
1056 {
1057 public:
1058     wxVariantDataVoidPtr() { }
1059     wxVariantDataVoidPtr(void* value) { m_value = value; }
1060
1061     inline void* GetValue() const { return m_value; }
1062     inline void SetValue(void* value) { m_value = value; }
1063
1064     virtual bool Eq(wxVariantData& data) const;
1065 #if wxUSE_STD_IOSTREAM
1066     virtual bool Write(wxSTD ostream& str) const;
1067 #endif
1068     virtual bool Write(wxString& str) const;
1069 #if wxUSE_STD_IOSTREAM
1070     virtual bool Read(wxSTD istream& str);
1071 #endif
1072     virtual bool Read(wxString& str);
1073     virtual wxString GetType() const { return wxT("void*"); }
1074     virtual wxVariantData* Clone() const { return new wxVariantDataVoidPtr(m_value); }
1075
1076 protected:
1077     void* m_value;
1078 };
1079
1080 bool wxVariantDataVoidPtr::Eq(wxVariantData& data) const
1081 {
1082     wxASSERT_MSG( data.GetType() == wxT("void*"), wxT("wxVariantDataVoidPtr::Eq: argument mismatch") );
1083
1084     wxVariantDataVoidPtr& otherData = (wxVariantDataVoidPtr&) data;
1085
1086     return (otherData.m_value == m_value);
1087 }
1088
1089 #if wxUSE_STD_IOSTREAM
1090 bool wxVariantDataVoidPtr::Write(wxSTD ostream& str) const
1091 {
1092     wxString s;
1093     Write(s);
1094     str << (const char*) s.mb_str();
1095     return true;
1096 }
1097 #endif
1098
1099 bool wxVariantDataVoidPtr::Write(wxString& str) const
1100 {
1101     str.Printf(wxT("%p"), m_value);
1102     return true;
1103 }
1104
1105 #if wxUSE_STD_IOSTREAM
1106 bool wxVariantDataVoidPtr::Read(wxSTD istream& WXUNUSED(str))
1107 {
1108     // Not implemented
1109     return false;
1110 }
1111 #endif
1112
1113 bool wxVariantDataVoidPtr::Read(wxString& WXUNUSED(str))
1114 {
1115     // Not implemented
1116     return false;
1117 }
1118
1119 // wxVariant
1120
1121 wxVariant::wxVariant( void* val, const wxString& name)
1122 {
1123     m_refData = new wxVariantDataVoidPtr(val);
1124     m_name = name;
1125 }
1126
1127 bool wxVariant::operator== (void* value) const
1128 {
1129     return (value == ((wxVariantDataVoidPtr*)GetData())->GetValue());
1130 }
1131
1132 bool wxVariant::operator!= (void* value) const
1133 {
1134     return (!((*this) == (void*) value));
1135 }
1136
1137 void wxVariant::operator= (void* value)
1138 {
1139     if (GetType() == wxT("void*") && (m_refData->GetRefCount() == 1))
1140     {
1141         ((wxVariantDataVoidPtr*)GetData())->SetValue(value);
1142     }
1143     else
1144     {
1145         UnRef();
1146         m_refData = new wxVariantDataVoidPtr(value);
1147     }
1148 }
1149
1150 void* wxVariant::GetVoidPtr() const
1151 {
1152     // handling this specially is convenient when working with COM, see #9873
1153     if ( IsNull() )
1154         return NULL;
1155
1156     wxASSERT( GetType() == wxT("void*") );
1157
1158     return (void*) ((wxVariantDataVoidPtr*) m_refData)->GetValue();
1159 }
1160
1161 // ----------------------------------------------------------------------------
1162 // wxVariantDataDateTime
1163 // ----------------------------------------------------------------------------
1164
1165 #if wxUSE_DATETIME
1166
1167 class wxVariantDataDateTime: public wxVariantData
1168 {
1169 public:
1170     wxVariantDataDateTime() { }
1171     wxVariantDataDateTime(const wxDateTime& value) { m_value = value; }
1172
1173     inline wxDateTime GetValue() const { return m_value; }
1174     inline void SetValue(const wxDateTime& value) { m_value = value; }
1175
1176     virtual bool Eq(wxVariantData& data) const;
1177 #if wxUSE_STD_IOSTREAM
1178     virtual bool Write(wxSTD ostream& str) const;
1179 #endif
1180     virtual bool Write(wxString& str) const;
1181 #if wxUSE_STD_IOSTREAM
1182     virtual bool Read(wxSTD istream& str);
1183 #endif
1184     virtual bool Read(wxString& str);
1185     virtual wxString GetType() const { return wxT("datetime"); }
1186     virtual wxVariantData* Clone() const { return new wxVariantDataDateTime(m_value); }
1187
1188 protected:
1189     wxDateTime m_value;
1190 };
1191
1192
1193 bool wxVariantDataDateTime::Eq(wxVariantData& data) const
1194 {
1195     wxASSERT_MSG( (data.GetType() == wxT("datetime")), wxT("wxVariantDataDateTime::Eq: argument mismatch") );
1196
1197     wxVariantDataDateTime& otherData = (wxVariantDataDateTime&) data;
1198
1199     return (otherData.m_value == m_value);
1200 }
1201
1202
1203 #if wxUSE_STD_IOSTREAM
1204 bool wxVariantDataDateTime::Write(wxSTD ostream& str) const
1205 {
1206     wxString value;
1207     Write( value );
1208     str << value.c_str();
1209     return true;
1210 }
1211 #endif
1212
1213
1214 bool wxVariantDataDateTime::Write(wxString& str) const
1215 {
1216     if ( m_value.IsValid() )
1217         str = m_value.Format();
1218     else
1219         str = wxS("Invalid");
1220     return true;
1221 }
1222
1223
1224 #if wxUSE_STD_IOSTREAM
1225 bool wxVariantDataDateTime::Read(wxSTD istream& WXUNUSED(str))
1226 {
1227     // Not implemented
1228     return false;
1229 }
1230 #endif
1231
1232
1233 bool wxVariantDataDateTime::Read(wxString& str)
1234 {
1235     if ( str == wxS("Invalid") )
1236     {
1237         m_value = wxInvalidDateTime;
1238         return true;
1239     }
1240
1241     wxString::const_iterator end;
1242     return m_value.ParseDateTime(str, &end) && end == str.end();
1243 }
1244
1245 // wxVariant
1246
1247 wxVariant::wxVariant(const wxDateTime& val, const wxString& name) // Date
1248 {
1249     m_refData = new wxVariantDataDateTime(val);
1250     m_name = name;
1251 }
1252
1253 bool wxVariant::operator== (const wxDateTime& value) const
1254 {
1255     wxDateTime thisValue;
1256     if (!Convert(&thisValue))
1257         return false;
1258
1259     return value.IsEqualTo(thisValue);
1260 }
1261
1262 bool wxVariant::operator!= (const wxDateTime& value) const
1263 {
1264     return (!((*this) == value));
1265 }
1266
1267 void wxVariant::operator= (const wxDateTime& value)
1268 {
1269     if (GetType() == wxT("datetime") &&
1270         m_refData->GetRefCount() == 1)
1271     {
1272         ((wxVariantDataDateTime*)GetData())->SetValue(value);
1273     }
1274     else
1275     {
1276         UnRef();
1277         m_refData = new wxVariantDataDateTime(value);
1278     }
1279 }
1280
1281 wxDateTime wxVariant::GetDateTime() const
1282 {
1283     wxDateTime value;
1284     if (!Convert(& value))
1285     {
1286         wxFAIL_MSG(wxT("Could not convert to a datetime"));
1287     }
1288
1289     return value;
1290 }
1291
1292 #endif // wxUSE_DATETIME
1293
1294 // ----------------------------------------------------------------------------
1295 // wxVariantDataArrayString
1296 // ----------------------------------------------------------------------------
1297
1298 class wxVariantDataArrayString: public wxVariantData
1299 {
1300 public:
1301     wxVariantDataArrayString() { }
1302     wxVariantDataArrayString(const wxArrayString& value) { m_value = value; }
1303
1304     wxArrayString GetValue() const { return m_value; }
1305     void SetValue(const wxArrayString& value) { m_value = value; }
1306
1307     virtual bool Eq(wxVariantData& data) const;
1308 #if wxUSE_STD_IOSTREAM
1309     virtual bool Write(wxSTD ostream& str) const;
1310 #endif
1311     virtual bool Write(wxString& str) const;
1312 #if wxUSE_STD_IOSTREAM
1313     virtual bool Read(wxSTD istream& str);
1314 #endif
1315     virtual bool Read(wxString& str);
1316     virtual wxString GetType() const { return wxT("arrstring"); }
1317     virtual wxVariantData* Clone() const { return new wxVariantDataArrayString(m_value); }
1318
1319 protected:
1320     wxArrayString m_value;
1321 };
1322
1323 bool wxVariantDataArrayString::Eq(wxVariantData& data) const
1324 {
1325     wxASSERT_MSG( data.GetType() == GetType(), wxT("wxVariantDataArrayString::Eq: argument mismatch") );
1326
1327     wxVariantDataArrayString& otherData = (wxVariantDataArrayString&) data;
1328
1329     return otherData.m_value == m_value;
1330 }
1331
1332 #if wxUSE_STD_IOSTREAM
1333 bool wxVariantDataArrayString::Write(wxSTD ostream& WXUNUSED(str)) const
1334 {
1335     // Not implemented
1336     return false;
1337 }
1338 #endif
1339
1340 bool wxVariantDataArrayString::Write(wxString& str) const
1341 {
1342     size_t count = m_value.GetCount();
1343     for ( size_t n = 0; n < count; n++ )
1344     {
1345         if ( n )
1346             str += _T(';');
1347
1348         str += m_value[n];
1349     }
1350
1351     return true;
1352 }
1353
1354
1355 #if wxUSE_STD_IOSTREAM
1356 bool wxVariantDataArrayString::Read(wxSTD istream& WXUNUSED(str))
1357 {
1358     // Not implemented
1359     return false;
1360 }
1361 #endif
1362
1363
1364 bool wxVariantDataArrayString::Read(wxString& str)
1365 {
1366     wxStringTokenizer tk(str, _T(";"));
1367     while ( tk.HasMoreTokens() )
1368     {
1369         m_value.Add(tk.GetNextToken());
1370     }
1371
1372     return true;
1373 }
1374
1375 // wxVariant
1376
1377 wxVariant::wxVariant(const wxArrayString& val, const wxString& name) // Strings
1378 {
1379     m_refData = new wxVariantDataArrayString(val);
1380     m_name = name;
1381 }
1382
1383 bool wxVariant::operator==(const wxArrayString& WXUNUSED(value)) const
1384 {
1385     wxFAIL_MSG( _T("TODO") );
1386
1387     return false;
1388 }
1389
1390 bool wxVariant::operator!=(const wxArrayString& value) const
1391 {
1392     return !(*this == value);
1393 }
1394
1395 void wxVariant::operator=(const wxArrayString& value)
1396 {
1397     if (GetType() == wxT("arrstring") &&
1398         m_refData->GetRefCount() == 1)
1399     {
1400         ((wxVariantDataArrayString *)GetData())->SetValue(value);
1401     }
1402     else
1403     {
1404         UnRef();
1405         m_refData = new wxVariantDataArrayString(value);
1406     }
1407 }
1408
1409 wxArrayString wxVariant::GetArrayString() const
1410 {
1411     if ( GetType() == wxT("arrstring") )
1412         return ((wxVariantDataArrayString *)GetData())->GetValue();
1413
1414     return wxArrayString();
1415 }
1416
1417 // ----------------------------------------------------------------------------
1418 // wxVariantDataList
1419 // ----------------------------------------------------------------------------
1420
1421 class WXDLLIMPEXP_BASE wxVariantDataList: public wxVariantData
1422 {
1423 public:
1424     wxVariantDataList() {}
1425     wxVariantDataList(const wxVariantList& list);
1426     virtual ~wxVariantDataList();
1427
1428     wxVariantList& GetValue() { return m_value; }
1429     void SetValue(const wxVariantList& value) ;
1430
1431     virtual bool Eq(wxVariantData& data) const;
1432 #if wxUSE_STD_IOSTREAM
1433     virtual bool Write(wxSTD ostream& str) const;
1434 #endif
1435     virtual bool Write(wxString& str) const;
1436 #if wxUSE_STD_IOSTREAM
1437     virtual bool Read(wxSTD istream& str);
1438 #endif
1439     virtual bool Read(wxString& str);
1440     virtual wxString GetType() const { return wxT("list"); }
1441
1442     void Clear();
1443
1444     wxVariantData* Clone() const { return new wxVariantDataList(m_value); }
1445 protected:
1446     wxVariantList  m_value;
1447 };
1448
1449 wxVariantDataList::wxVariantDataList(const wxVariantList& list)
1450 {
1451     SetValue(list);
1452 }
1453
1454 wxVariantDataList::~wxVariantDataList()
1455 {
1456     Clear();
1457 }
1458
1459 void wxVariantDataList::SetValue(const wxVariantList& value)
1460 {
1461     Clear();
1462     wxVariantList::compatibility_iterator node = value.GetFirst();
1463     while (node)
1464     {
1465         wxVariant* var = node->GetData();
1466         m_value.Append(new wxVariant(*var));
1467         node = node->GetNext();
1468     }
1469 }
1470
1471 void wxVariantDataList::Clear()
1472 {
1473     wxVariantList::compatibility_iterator node = m_value.GetFirst();
1474     while (node)
1475     {
1476         wxVariant* var = node->GetData();
1477         delete var;
1478         node = node->GetNext();
1479     }
1480     m_value.Clear();
1481 }
1482
1483 bool wxVariantDataList::Eq(wxVariantData& data) const
1484 {
1485     wxASSERT_MSG( (data.GetType() == wxT("list")), wxT("wxVariantDataList::Eq: argument mismatch") );
1486
1487     wxVariantDataList& listData = (wxVariantDataList&) data;
1488     wxVariantList::compatibility_iterator node1 = m_value.GetFirst();
1489     wxVariantList::compatibility_iterator node2 = listData.GetValue().GetFirst();
1490     while (node1 && node2)
1491     {
1492         wxVariant* var1 = node1->GetData();
1493         wxVariant* var2 = node2->GetData();
1494         if ((*var1) != (*var2))
1495             return false;
1496         node1 = node1->GetNext();
1497         node2 = node2->GetNext();
1498     }
1499     if (node1 || node2) return false;
1500     return true;
1501 }
1502
1503 #if wxUSE_STD_IOSTREAM
1504 bool wxVariantDataList::Write(wxSTD ostream& str) const
1505 {
1506     wxString s;
1507     Write(s);
1508     str << (const char*) s.mb_str();
1509     return true;
1510 }
1511 #endif
1512
1513 bool wxVariantDataList::Write(wxString& str) const
1514 {
1515     str = wxEmptyString;
1516     wxVariantList::compatibility_iterator node = m_value.GetFirst();
1517     while (node)
1518     {
1519         wxVariant* var = node->GetData();
1520         if (node != m_value.GetFirst())
1521           str += wxT(" ");
1522         wxString str1;
1523         str += var->MakeString();
1524         node = node->GetNext();
1525     }
1526
1527     return true;
1528 }
1529
1530 #if wxUSE_STD_IOSTREAM
1531 bool wxVariantDataList::Read(wxSTD istream& WXUNUSED(str))
1532 {
1533     wxFAIL_MSG(wxT("Unimplemented"));
1534     // TODO
1535     return false;
1536 }
1537 #endif
1538
1539 bool wxVariantDataList::Read(wxString& WXUNUSED(str))
1540 {
1541     wxFAIL_MSG(wxT("Unimplemented"));
1542     // TODO
1543     return false;
1544 }
1545
1546 // wxVariant
1547
1548 wxVariant::wxVariant(const wxVariantList& val, const wxString& name) // List of variants
1549 {
1550     m_refData = new wxVariantDataList(val);
1551     m_name = name;
1552 }
1553
1554 bool wxVariant::operator== (const wxVariantList& value) const
1555 {
1556     wxASSERT_MSG( (GetType() == wxT("list")), wxT("Invalid type for == operator") );
1557
1558     wxVariantDataList other(value);
1559     return (GetData()->Eq(other));
1560 }
1561
1562 bool wxVariant::operator!= (const wxVariantList& value) const
1563 {
1564     return (!((*this) == value));
1565 }
1566
1567 void wxVariant::operator= (const wxVariantList& value)
1568 {
1569     if (GetType() == wxT("list") &&
1570         m_refData->GetRefCount() == 1)
1571     {
1572         ((wxVariantDataList*)GetData())->SetValue(value);
1573     }
1574     else
1575     {
1576         UnRef();
1577         m_refData = new wxVariantDataList(value);
1578     }
1579 }
1580
1581 wxVariantList& wxVariant::GetList() const
1582 {
1583     wxASSERT( (GetType() == wxT("list")) );
1584
1585     return (wxVariantList&) ((wxVariantDataList*) m_refData)->GetValue();
1586 }
1587
1588 // Make empty list
1589 void wxVariant::NullList()
1590 {
1591     SetData(new wxVariantDataList());
1592 }
1593
1594 // Append to list
1595 void wxVariant::Append(const wxVariant& value)
1596 {
1597     wxVariantList& list = GetList();
1598
1599     list.Append(new wxVariant(value));
1600 }
1601
1602 // Insert at front of list
1603 void wxVariant::Insert(const wxVariant& value)
1604 {
1605     wxVariantList& list = GetList();
1606
1607     list.Insert(new wxVariant(value));
1608 }
1609
1610 // Returns true if the variant is a member of the list
1611 bool wxVariant::Member(const wxVariant& value) const
1612 {
1613     wxVariantList& list = GetList();
1614
1615     wxVariantList::compatibility_iterator node = list.GetFirst();
1616     while (node)
1617     {
1618         wxVariant* other = node->GetData();
1619         if (value == *other)
1620             return true;
1621         node = node->GetNext();
1622     }
1623     return false;
1624 }
1625
1626 // Deletes the nth element of the list
1627 bool wxVariant::Delete(size_t item)
1628 {
1629     wxVariantList& list = GetList();
1630
1631     wxASSERT_MSG( (item < list.GetCount()), wxT("Invalid index to Delete") );
1632     wxVariantList::compatibility_iterator node = list.Item(item);
1633     wxVariant* variant = node->GetData();
1634     delete variant;
1635     list.Erase(node);
1636     return true;
1637 }
1638
1639 // Clear list
1640 void wxVariant::ClearList()
1641 {
1642     if (!IsNull() && (GetType() == wxT("list")))
1643     {
1644         ((wxVariantDataList*) m_refData)->Clear();
1645     }
1646     else
1647     {
1648         if (!GetType().IsSameAs(wxT("list")))
1649             UnRef();
1650
1651         m_refData = new wxVariantDataList;
1652     }
1653 }
1654
1655 // Treat a list variant as an array
1656 wxVariant wxVariant::operator[] (size_t idx) const
1657 {
1658     wxASSERT_MSG( GetType() == wxT("list"), wxT("Invalid type for array operator") );
1659
1660     if (GetType() == wxT("list"))
1661     {
1662         wxVariantDataList* data = (wxVariantDataList*) m_refData;
1663         wxASSERT_MSG( (idx < data->GetValue().GetCount()), wxT("Invalid index for array") );
1664         return *(data->GetValue().Item(idx)->GetData());
1665     }
1666     return wxNullVariant;
1667 }
1668
1669 wxVariant& wxVariant::operator[] (size_t idx)
1670 {
1671     // We can't return a reference to a variant for a string list, since the string
1672     // is actually stored as a char*, not a variant.
1673
1674     wxASSERT_MSG( (GetType() == wxT("list")), wxT("Invalid type for array operator") );
1675
1676     wxVariantDataList* data = (wxVariantDataList*) m_refData;
1677     wxASSERT_MSG( (idx < data->GetValue().GetCount()), wxT("Invalid index for array") );
1678
1679     return * (data->GetValue().Item(idx)->GetData());
1680 }
1681
1682 // Return the number of elements in a list
1683 size_t wxVariant::GetCount() const
1684 {
1685     wxASSERT_MSG( GetType() == wxT("list"), wxT("Invalid type for GetCount()") );
1686
1687     if (GetType() == wxT("list"))
1688     {
1689         wxVariantDataList* data = (wxVariantDataList*) m_refData;
1690         return data->GetValue().GetCount();
1691     }
1692     return 0;
1693 }
1694
1695 // ----------------------------------------------------------------------------
1696 // Type conversion
1697 // ----------------------------------------------------------------------------
1698
1699 bool wxVariant::Convert(long* value) const
1700 {
1701     wxString type(GetType());
1702     if (type == wxT("double"))
1703         *value = (long) (((wxVariantDoubleData*)GetData())->GetValue());
1704     else if (type == wxT("long"))
1705         *value = ((wxVariantDataLong*)GetData())->GetValue();
1706     else if (type == wxT("bool"))
1707         *value = (long) (((wxVariantDataBool*)GetData())->GetValue());
1708     else if (type == wxT("string"))
1709         *value = wxAtol(((wxVariantDataString*)GetData())->GetValue());
1710     else
1711         return false;
1712
1713     return true;
1714 }
1715
1716 bool wxVariant::Convert(bool* value) const
1717 {
1718     wxString type(GetType());
1719     if (type == wxT("double"))
1720         *value = ((int) (((wxVariantDoubleData*)GetData())->GetValue()) != 0);
1721     else if (type == wxT("long"))
1722         *value = (((wxVariantDataLong*)GetData())->GetValue() != 0);
1723     else if (type == wxT("bool"))
1724         *value = ((wxVariantDataBool*)GetData())->GetValue();
1725     else if (type == wxT("string"))
1726     {
1727         wxString val(((wxVariantDataString*)GetData())->GetValue());
1728         val.MakeLower();
1729         if (val == wxT("true") || val == wxT("yes") || val == wxT('1') )
1730             *value = true;
1731         else if (val == wxT("false") || val == wxT("no") || val == wxT('0') )
1732             *value = false;
1733         else
1734             return false;
1735     }
1736     else
1737         return false;
1738
1739     return true;
1740 }
1741
1742 bool wxVariant::Convert(double* value) const
1743 {
1744     wxString type(GetType());
1745     if (type == wxT("double"))
1746         *value = ((wxVariantDoubleData*)GetData())->GetValue();
1747     else if (type == wxT("long"))
1748         *value = (double) (((wxVariantDataLong*)GetData())->GetValue());
1749     else if (type == wxT("bool"))
1750         *value = (double) (((wxVariantDataBool*)GetData())->GetValue());
1751     else if (type == wxT("string"))
1752         *value = (double) wxAtof(((wxVariantDataString*)GetData())->GetValue());
1753     else
1754         return false;
1755
1756     return true;
1757 }
1758
1759 bool wxVariant::Convert(wxUniChar* value) const
1760 {
1761     wxString type(GetType());
1762     if (type == wxT("char"))
1763         *value = ((wxVariantDataChar*)GetData())->GetValue();
1764     else if (type == wxT("long"))
1765         *value = (char) (((wxVariantDataLong*)GetData())->GetValue());
1766     else if (type == wxT("bool"))
1767         *value = (char) (((wxVariantDataBool*)GetData())->GetValue());
1768     else
1769         return false;
1770
1771     return true;
1772 }
1773
1774 bool wxVariant::Convert(char* value) const
1775 {
1776     wxUniChar ch;
1777     if ( !Convert(&ch) )
1778         return false;
1779     *value = ch;
1780     return true;
1781 }
1782
1783 bool wxVariant::Convert(wchar_t* value) const
1784 {
1785     wxUniChar ch;
1786     if ( !Convert(&ch) )
1787         return false;
1788     *value = ch;
1789     return true;
1790 }
1791
1792 bool wxVariant::Convert(wxString* value) const
1793 {
1794     *value = MakeString();
1795     return true;
1796 }
1797
1798 #if wxUSE_DATETIME
1799 bool wxVariant::Convert(wxDateTime* value) const
1800 {
1801     wxString type(GetType());
1802     if (type == wxT("datetime"))
1803     {
1804         *value = ((wxVariantDataDateTime*)GetData())->GetValue();
1805         return true;
1806     }
1807
1808     // Fallback to string conversion
1809     wxString val;
1810     if ( !Convert(&val) )
1811         return false;
1812
1813     // Try to parse this as either date and time, only date or only time
1814     // checking that the entire string was parsed
1815     wxString::const_iterator end;
1816     if ( value->ParseDateTime(val, &end) && end == val.end() )
1817         return true;
1818
1819     if ( value->ParseDate(val, &end) && end == val.end() )
1820         return true;
1821
1822     if ( value->ParseTime(val, &end) && end == val.end() )
1823         return true;
1824
1825     return false;
1826 }
1827 #endif // wxUSE_DATETIME
1828
1829 #endif // wxUSE_VARIANT