src/propgrid/propgridpagestate.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/propgrid/propgridpagestate.cpp
   3 // Purpose:     wxPropertyGridPageState class
   4 // Author:      Jaakko Salli
   5 // Modified by:
   6 // Created:     2008-08-24
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Jaakko Salli
   9 // Licence:     wxWindows license
  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 #if wxUSE_PROPGRID
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/defs.h"
  23     #include "wx/object.h"
  24     #include "wx/hash.h"
  25     #include "wx/string.h"
  26     #include "wx/log.h"
  27     #include "wx/event.h"
  28     #include "wx/window.h"
  29     #include "wx/panel.h"
  30     #include "wx/dc.h"
  31     #include "wx/dcmemory.h"
  32     #include "wx/pen.h"
  33     #include "wx/brush.h"
  34     #include "wx/intl.h"
  35     #include "wx/stopwatch.h"
  36 #endif
  37
  38 // This define is necessary to prevent macro clearing
  39 #define __wxPG_SOURCE_FILE__
  40
  41 #include "wx/propgrid/propgridpagestate.h"
  42 #include "wx/propgrid/propgrid.h"
  43 #include "wx/propgrid/editors.h"
  44
  45 #define wxPG_DEFAULT_SPLITTERX      110
  46
  47
  48 // -----------------------------------------------------------------------
  49 // wxPropertyGridIterator
  50 // -----------------------------------------------------------------------
  51
  52 void wxPropertyGridIteratorBase::Init( wxPropertyGridPageState* state, int flags, wxPGProperty* property, int dir  )
  53 {
  54     wxASSERT( dir == 1 || dir == -1 );
  55
  56     m_state = state;
  57     m_baseParent = state->DoGetRoot();
  58     if ( !property && m_baseParent->GetChildCount() )
  59         property = m_baseParent->Item(0);
  60
  61     m_property = property;
  62
  63     wxPG_ITERATOR_CREATE_MASKS(flags, m_itemExMask, m_parentExMask)
  64
  65     // Need to skip first?
  66     if ( property && (property->GetFlags() & m_itemExMask) )
  67     {
  68         if ( dir == 1 )
  69             Next();
  70         else
  71             Prev();
  72     }
  73 }
  74
  75 void wxPropertyGridIteratorBase::Init( wxPropertyGridPageState* state, int flags, int startPos, int dir  )
  76 {
  77     wxPGProperty* property = NULL;
  78
  79     if ( startPos == wxTOP )
  80     {
  81         if ( dir == 0 )
  82             dir = 1;
  83     }
  84     else if ( startPos == wxBOTTOM )
  85     {
  86         property = state->GetLastItem(flags);
  87         if ( dir == 0 )
  88             dir = -1;
  89     }
  90     else
  91     {
  92         wxFAIL_MSG("Only supported starting positions are wxTOP and wxBOTTOM");
  93     }
  94
  95     Init( state, flags, property, dir );
  96 }
  97
  98 void wxPropertyGridIteratorBase::Assign( const wxPropertyGridIteratorBase& it )
  99 {
 100     m_property = it.m_property;
 101     m_state = it.m_state;
 102     m_baseParent = it.m_baseParent;
 103     m_itemExMask = it.m_itemExMask;
 104     m_parentExMask = it.m_parentExMask;
 105 }
 106
 107 void wxPropertyGridIteratorBase::Prev()
 108 {
 109     wxPGProperty* property = m_property;
 110     wxASSERT( property );
 111
 112     wxPGProperty* parent = property->GetParent();
 113     wxASSERT( parent );
 114     unsigned int index = property->GetIndexInParent();
 115
 116     if ( index > 0 )
 117     {
 118         // Previous sibling
 119         index--;
 120
 121         property = parent->Item(index);
 122
 123         // Go to last children?
 124         if ( property->GetChildCount() &&
 125              wxPG_ITERATOR_PARENTEXMASK_TEST(property, m_parentExMask) )
 126         {
 127             // First child
 128             property = property->Last();
 129         }
 130     }
 131     else
 132     {
 133         // Up to a parent
 134         if ( parent == m_baseParent )
 135         {
 136             m_property = NULL;
 137             return;
 138         }
 139         else
 140         {
 141             property = parent;
 142         }
 143     }
 144
 145     m_property = property;
 146
 147     // If property does not match our criteria, skip it
 148     if ( property->GetFlags() & m_itemExMask )
 149         Prev();
 150 }
 151
 152 void wxPropertyGridIteratorBase::Next( bool iterateChildren )
 153 {
 154     wxPGProperty* property = m_property;
 155     wxASSERT( property );
 156
 157     if ( property->GetChildCount() &&
 158          wxPG_ITERATOR_PARENTEXMASK_TEST(property, m_parentExMask) &&
 159          iterateChildren )
 160     {
 161         // First child
 162         property = property->Item(0);
 163     }
 164     else
 165     {
 166         wxPGProperty* parent = property->GetParent();
 167         wxASSERT( parent );
 168         unsigned int index = property->GetIndexInParent() + 1;
 169
 170         if ( index < parent->GetChildCount() )
 171         {
 172             // Next sibling
 173             property = parent->Item(index);
 174         }
 175         else
 176         {
 177             // Next sibling of parent
 178             if ( parent == m_baseParent )
 179             {
 180                 m_property = NULL;
 181             }
 182             else
 183             {
 184                 m_property = parent;
 185                 Next(false);
 186             }
 187             return;
 188         }
 189     }
 190
 191     m_property = property;
 192
 193     // If property does not match our criteria, skip it
 194     if ( property->GetFlags() & m_itemExMask )
 195         Next();
 196 }
 197
 198 // -----------------------------------------------------------------------
 199 // wxPropertyGridPageState
 200 // -----------------------------------------------------------------------
 201
 202 wxPropertyGridPageState::wxPropertyGridPageState()
 203 {
 204     m_pPropGrid = NULL;
 205     m_regularArray.SetParentState(this);
 206     m_properties = &m_regularArray;
 207     m_abcArray = NULL;
 208     m_currentCategory = NULL;
 209     m_selected = NULL;
 210     m_width = 0;
 211     m_virtualHeight = 0;
 212     m_lastCaptionBottomnest = 1;
 213     m_itemsAdded = 0;
 214     m_anyModified = 0;
 215     m_vhCalcPending = 0;
 216     m_colWidths.push_back( wxPG_DEFAULT_SPLITTERX );
 217     m_colWidths.push_back( wxPG_DEFAULT_SPLITTERX );
 218     m_fSplitterX = wxPG_DEFAULT_SPLITTERX;
 219 }
 220
 221 // -----------------------------------------------------------------------
 222
 223 wxPropertyGridPageState::~wxPropertyGridPageState()
 224 {
 225     delete m_abcArray;
 226 }
 227
 228 // -----------------------------------------------------------------------
 229
 230 void wxPropertyGridPageState::InitNonCatMode()
 231 {
 232     if ( !m_abcArray )
 233     {
 234         m_abcArray = new wxPGRootProperty(wxS("<Root_NonCat>"));
 235         m_abcArray->SetParentState(this);
 236         m_abcArray->SetFlag(wxPG_PROP_CHILDREN_ARE_COPIES);
 237     }
 238
 239     // Must be called when state::m_properties still points to regularArray.
 240     wxPGProperty* oldProperties = m_properties;
 241
 242     // Must use temp value in state::m_properties for item iteration loop
 243     // to run as expected.
 244     m_properties = &m_regularArray;
 245
 246     if ( m_properties->GetChildCount() )
 247     {
 248         //
 249         // Prepare m_abcArray
 250         wxPropertyGridIterator it( this, wxPG_ITERATE_PROPERTIES );
 251
 252         for ( ; !it.AtEnd(); it.Next() )
 253         {
 254             wxPGProperty* p = it.GetProperty();
 255             wxPGProperty* parent = p->GetParent();
 256             if ( parent->IsCategory() || parent->IsRoot() )
 257             {
 258                 m_abcArray->AddChild2(p);
 259                 p->m_parent = &m_regularArray;
 260             }
 261         }
 262     }
 263
 264     m_properties = oldProperties;
 265 }
 266
 267 // -----------------------------------------------------------------------
 268
 269 void wxPropertyGridPageState::DoClear()
 270 {
 271     m_regularArray.Empty();
 272     if ( m_abcArray )
 273         m_abcArray->Empty();
 274
 275     m_dictName.clear();
 276
 277     m_currentCategory = NULL;
 278     m_lastCaptionBottomnest = 1;
 279     m_itemsAdded = 0;
 280
 281     m_virtualHeight = 0;
 282     m_vhCalcPending = 0;
 283
 284     m_selected = NULL;
 285 }
 286
 287 // -----------------------------------------------------------------------
 288
 289 void wxPropertyGridPageState::CalculateFontAndBitmapStuff( int WXUNUSED(vspacing) )
 290 {
 291     wxPropertyGrid* propGrid = GetGrid();
 292
 293     VirtualHeightChanged();
 294
 295     // Recalculate caption text extents.
 296     unsigned int i;
 297
 298     for ( i=0;i<m_regularArray.GetChildCount();i++ )
 299     {
 300         wxPGProperty* p =m_regularArray.Item(i);
 301
 302         if ( p->IsCategory() )
 303             ((wxPropertyCategory*)p)->CalculateTextExtent(propGrid, propGrid->GetCaptionFont());
 304     }
 305 }
 306
 307 // -----------------------------------------------------------------------
 308
 309 void wxPropertyGridPageState::SetVirtualWidth( int width )
 310 {
 311     wxASSERT( width >= 0 );
 312     wxPropertyGrid* pg = GetGrid();
 313     int gw = pg->GetClientSize().x;
 314     if ( width < gw )
 315         width = gw;
 316
 317     m_width = width;
 318 }
 319
 320 // -----------------------------------------------------------------------
 321
 322 void wxPropertyGridPageState::OnClientWidthChange( int newWidth, int widthChange, bool fromOnResize )
 323 {
 324     wxPropertyGrid* pg = GetGrid();
 325
 326     if ( pg->HasVirtualWidth() )
 327     {
 328         if ( m_width < newWidth )
 329             SetVirtualWidth( newWidth );
 330
 331         CheckColumnWidths(widthChange);
 332     }
 333     else
 334     {
 335         SetVirtualWidth( newWidth );
 336
 337         // This should be done before splitter auto centering
 338         // NOTE: Splitter auto-centering is done in this function.
 339         if ( !fromOnResize )
 340             widthChange = 0;
 341         CheckColumnWidths(widthChange);
 342
 343         if ( !(GetGrid()->GetInternalFlags() & wxPG_FL_SPLITTER_PRE_SET) &&
 344              (GetGrid()->GetInternalFlags() & wxPG_FL_DONT_CENTER_SPLITTER) )
 345         {
 346             long timeSinceCreation = (::wxGetLocalTimeMillis() - GetGrid()->m_timeCreated).ToLong();
 347
 348             // If too long, don't set splitter
 349             if ( timeSinceCreation < 3000 )
 350             {
 351                 if ( m_properties->GetChildCount() || timeSinceCreation > 750 )
 352                 {
 353                     SetSplitterLeft( false );
 354                 }
 355                 else
 356                 {
 357                     DoSetSplitterPosition( newWidth / 2 );
 358                     GetGrid()->ClearInternalFlag(wxPG_FL_SPLITTER_PRE_SET);
 359                 }
 360             }
 361         }
 362     }
 363 }
 364
 365 // -----------------------------------------------------------------------
 366 // wxPropertyGridPageState item iteration methods
 367 // -----------------------------------------------------------------------
 368
 369 wxPGProperty* wxPropertyGridPageState::GetLastItem( int flags )
 370 {
 371     if ( !m_properties->GetChildCount() )
 372         return NULL;
 373
 374     wxPG_ITERATOR_CREATE_MASKS(flags, int itemExMask, int parentExMask)
 375
 376     // First, get last child of last parent
 377     wxPGProperty* pwc = (wxPGProperty*)m_properties->Last();
 378     while ( pwc->GetChildCount() &&
 379             wxPG_ITERATOR_PARENTEXMASK_TEST(pwc, parentExMask) )
 380         pwc = (wxPGProperty*) pwc->Last();
 381
 382     // Then, if it doesn't fit our criteria, back up until we find something that does
 383     if ( pwc->GetFlags() & itemExMask )
 384     {
 385         wxPropertyGridIterator it( this, flags, pwc );
 386         for ( ; !it.AtEnd(); it.Prev() )
 387             ;
 388         pwc = (wxPGProperty*) it.GetProperty();
 389     }
 390
 391     return pwc;
 392 }
 393
 394 wxPropertyCategory* wxPropertyGridPageState::GetPropertyCategory( const wxPGProperty* p ) const
 395 {
 396     const wxPGProperty* parent = (const wxPGProperty*)p;
 397     const wxPGProperty* grandparent = (const wxPGProperty*)parent->GetParent();
 398     do
 399     {
 400         parent = grandparent;
 401         grandparent = (wxPGProperty*)parent->GetParent();
 402         if ( parent->IsCategory() && grandparent )
 403             return (wxPropertyCategory*)parent;
 404     } while ( grandparent );
 405
 406     return NULL;
 407 }
 408
 409 // -----------------------------------------------------------------------
 410 // wxPropertyGridPageState GetPropertyXXX methods
 411 // -----------------------------------------------------------------------
 412
 413 wxPGProperty* wxPropertyGridPageState::GetPropertyByLabel( const wxString& label,
 414                                                            wxPGProperty* parent ) const
 415 {
 416
 417     size_t i;
 418
 419     if ( !parent ) parent = (wxPGProperty*) &m_regularArray;
 420
 421     for ( i=0; i<parent->GetChildCount(); i++ )
 422     {
 423         wxPGProperty* p = parent->Item(i);
 424         if ( p->m_label == label )
 425             return p;
 426         // Check children recursively.
 427         if ( p->GetChildCount() )
 428         {
 429             p = GetPropertyByLabel(label,(wxPGProperty*)p);
 430             if ( p )
 431                 return p;
 432         }
 433     }
 434
 435     return NULL;
 436 }
 437
 438 // -----------------------------------------------------------------------
 439
 440 wxPGProperty* wxPropertyGridPageState::BaseGetPropertyByName( const wxString& name ) const
 441 {
 442     wxPGHashMapS2P::const_iterator it;
 443     it = m_dictName.find(name);
 444     if ( it != m_dictName.end() )
 445         return (wxPGProperty*) it->second;
 446     return NULL;
 447 }
 448
 449 // -----------------------------------------------------------------------
 450
 451 void wxPropertyGridPageState::DoSetPropertyName( wxPGProperty* p,
 452                                                  const wxString& newName )
 453 {
 454     wxCHECK_RET( p, wxT("invalid property id") );
 455
 456     wxPGProperty* parent = p->GetParent();
 457
 458     if ( parent->IsCategory() || parent->IsRoot() )
 459     {
 460         if ( p->GetBaseName().length() )
 461             m_dictName.erase( p->GetBaseName() );
 462         if ( newName.length() )
 463             m_dictName[newName] = (void*) p;
 464     }
 465
 466     p->DoSetName(newName);
 467 }
 468
 469 // -----------------------------------------------------------------------
 470 // wxPropertyGridPageState global operations
 471 // -----------------------------------------------------------------------
 472
 473 // -----------------------------------------------------------------------
 474 // Item iteration macros
 475 //   NB: Nowadays only needed for alphabetic/categoric mode switching.
 476 // -----------------------------------------------------------------------
 477
 478 //#define II_INVALID_I    0x00FFFFFF
 479
 480 #define ITEM_ITERATION_VARIABLES \
 481     wxPGProperty* parent; \
 482     unsigned int i; \
 483     unsigned int iMax;
 484
 485 #define ITEM_ITERATION_INIT_FROM_THE_TOP \
 486     parent = m_properties; \
 487     i = 0;
 488
 489 #if 0
 490 #define ITEM_ITERATION_INIT(startparent, startindex, state) \
 491     parent = startparent; \
 492     i = (unsigned int)startindex; \
 493     if ( parent == NULL ) \
 494     { \
 495         parent = state->m_properties; \
 496         i = 0; \
 497     }
 498 #endif
 499
 500 #define ITEM_ITERATION_LOOP_BEGIN \
 501     do \
 502     { \
 503         iMax = parent->GetChildCount(); \
 504         while ( i < iMax ) \
 505         {  \
 506             wxPGProperty* p = parent->Item(i);
 507
 508 #define ITEM_ITERATION_LOOP_END \
 509             if ( p->GetChildCount() ) \
 510             { \
 511                 i = 0; \
 512                 parent = (wxPGProperty*)p; \
 513                 iMax = parent->GetChildCount(); \
 514             } \
 515             else \
 516                 i++; \
 517         } \
 518         i = parent->m_arrIndex + 1; \
 519         parent = parent->m_parent; \
 520     } \
 521     while ( parent != NULL );
 522
 523 bool wxPropertyGridPageState::EnableCategories( bool enable )
 524 {
 525     //
 526     // NB: We can't use wxPropertyGridIterator in this
 527     //     function, since it depends on m_arrIndexes,
 528     //     which, among other things, is being fixed here.
 529     //
 530     ITEM_ITERATION_VARIABLES
 531
 532     if ( enable )
 533     {
 534         //
 535         // Enable categories
 536         //
 537
 538         if ( !IsInNonCatMode() )
 539             return false;
 540
 541         m_properties = &m_regularArray;
 542
 543         // fix parents, indexes, and depths
 544         ITEM_ITERATION_INIT_FROM_THE_TOP
 545
 546         ITEM_ITERATION_LOOP_BEGIN
 547
 548             p->m_arrIndex = i;
 549
 550             p->m_parent = parent;
 551
 552             // If parent was category, and this is not,
 553             // then the depth stays the same.
 554             if ( parent->IsCategory() &&
 555                  !p->IsCategory() )
 556                 p->m_depth = parent->m_depth;
 557             else
 558                 p->m_depth = parent->m_depth + 1;
 559
 560         ITEM_ITERATION_LOOP_END
 561
 562     }
 563     else
 564     {
 565         //
 566         // Disable categories
 567         //
 568
 569         if ( IsInNonCatMode() )
 570             return false;
 571
 572         // Create array, if necessary.
 573         if ( !m_abcArray )
 574             InitNonCatMode();
 575
 576         m_properties = m_abcArray;
 577
 578         // fix parents, indexes, and depths
 579         ITEM_ITERATION_INIT_FROM_THE_TOP
 580
 581         ITEM_ITERATION_LOOP_BEGIN
 582
 583             p->m_arrIndex = i;
 584
 585             p->m_parent = parent;
 586
 587             p->m_depth = parent->m_depth + 1;
 588
 589         ITEM_ITERATION_LOOP_END
 590     }
 591
 592     VirtualHeightChanged();
 593
 594     if ( m_pPropGrid->GetState() == this )
 595         m_pPropGrid->RecalculateVirtualSize();
 596
 597     return true;
 598 }
 599
 600 // -----------------------------------------------------------------------
 601
 602 #if wxUSE_STL
 603 #include <algorithm>
 604
 605 static bool wxPG_SortFunc_ByFunction(wxPGProperty *p1, wxPGProperty *p2)
 606 {
 607     wxPropertyGrid* pg = p1->GetGrid();
 608     wxPGSortCallback sortFunction = pg->GetSortFunction();
 609     return sortFunction(pg, p1, p2) < 0;
 610 }
 611
 612 static bool wxPG_SortFunc_ByLabel(wxPGProperty *p1, wxPGProperty *p2)
 613 {
 614     return p1->GetLabel().CmpNoCase( p2->GetLabel() ) < 0;
 615 }
 616
 617 #else
 618
 619 static int wxPG_SortFunc_ByFunction(wxPGProperty **pp1, wxPGProperty **pp2)
 620 {
 621     wxPGProperty *p1 = *pp1;
 622     wxPGProperty *p2 = *pp2;
 623     wxPropertyGrid* pg = p1->GetGrid();
 624     wxPGSortCallback sortFunction = pg->GetSortFunction();
 625     return sortFunction(pg, p1, p2);
 626 }
 627
 628 static int wxPG_SortFunc_ByLabel(wxPGProperty **pp1, wxPGProperty **pp2)
 629 {
 630     wxPGProperty *p1 = *pp1;
 631     wxPGProperty *p2 = *pp2;
 632     return p1->GetLabel().CmpNoCase( p2->GetLabel() );
 633 }
 634
 635 #endif
 636
 637 void wxPropertyGridPageState::DoSortChildren( wxPGProperty* p,
 638                                               int flags )
 639 {
 640     if ( !p )
 641         p = m_properties;
 642
 643     // Can only sort items with children
 644     if ( !p->GetChildCount() )
 645         return;
 646
 647     // Never sort children of aggregate properties
 648     if ( p->HasFlag(wxPG_PROP_AGGREGATE) )
 649         return;
 650
 651     if ( (flags & wxPG_SORT_TOP_LEVEL_ONLY)
 652          && !p->IsCategory() && !p->IsRoot() )
 653         return;
 654
 655 #if wxUSE_STL
 656     if ( GetGrid()->GetSortFunction() )
 657         std::sort(p->m_children.begin(), p->m_children.end(),
 658                   wxPG_SortFunc_ByFunction);
 659     else
 660         std::sort(p->m_children.begin(), p->m_children.end(),
 661                   wxPG_SortFunc_ByLabel);
 662 #else
 663     if ( GetGrid()->GetSortFunction() )
 664         p->m_children.Sort( wxPG_SortFunc_ByFunction );
 665     else
 666         p->m_children.Sort( wxPG_SortFunc_ByLabel );
 667 #endif
 668
 669     // Fix indices
 670     p->FixIndicesOfChildren();
 671
 672     if ( flags & wxPG_RECURSE )
 673     {
 674         // Apply sort recursively
 675         for ( unsigned int i=0; i<p->GetChildCount(); i++ )
 676             DoSortChildren(p->Item(i), flags);
 677     }
 678 }
 679
 680 // -----------------------------------------------------------------------
 681
 682 void wxPropertyGridPageState::DoSort( int flags )
 683 {
 684     DoSortChildren( m_properties, flags | wxPG_RECURSE );
 685
 686     // We used to sort categories as well here also if in non-categorized
 687     // mode, but doing would naturally cause child indices to become
 688     // corrupted.
 689 }
 690
 691 // -----------------------------------------------------------------------
 692
 693 bool wxPropertyGridPageState::PrepareAfterItemsAdded()
 694 {
 695     if ( !m_itemsAdded ) return false;
 696
 697     wxPropertyGrid* pg = GetGrid();
 698
 699     m_itemsAdded = 0;
 700
 701     if ( pg->HasFlag(wxPG_AUTO_SORT) )
 702         DoSort(wxPG_SORT_TOP_LEVEL_ONLY);
 703
 704     return true;
 705 }
 706
 707 // -----------------------------------------------------------------------
 708 // wxPropertyGridPageState splitter, column and hittest functions
 709 // -----------------------------------------------------------------------
 710
 711 wxPGProperty* wxPropertyGridPageState::DoGetItemAtY( int y ) const
 712 {
 713     // Outside?
 714     if ( y < 0 )
 715         return NULL;
 716
 717     unsigned int a = 0;
 718     return m_properties->GetItemAtY(y, GetGrid()->m_lineHeight, &a);
 719 }
 720
 721 // -----------------------------------------------------------------------
 722
 723 wxPropertyGridHitTestResult wxPropertyGridPageState::HitTest( const wxPoint&pt ) const
 724 {
 725     wxPropertyGridHitTestResult result;
 726     result.column = HitTestH( pt.x, &result.splitter, &result.splitterHitOffset );
 727     result.property = DoGetItemAtY( pt.y );
 728     return result;
 729 }
 730
 731 // -----------------------------------------------------------------------
 732
 733 // Used by SetSplitterLeft() and DotFitColumns()
 734 int wxPropertyGridPageState::GetColumnFitWidth(wxClientDC& dc,
 735                                            wxPGProperty* pwc,
 736                                            unsigned int col,
 737                                            bool subProps) const
 738 {
 739     wxPropertyGrid* pg = m_pPropGrid;
 740     size_t i;
 741     int maxW = 0;
 742     int w, h;
 743
 744     for ( i=0; i<pwc->GetChildCount(); i++ )
 745     {
 746         wxPGProperty* p = pwc->Item(i);
 747         if ( !p->IsCategory() )
 748         {
 749             const wxPGCell* cell = NULL;
 750             wxString text;
 751             p->GetDisplayInfo(col, -1, 0, &text, &cell);
 752             dc.GetTextExtent(text, &w, &h);
 753             if ( col == 0 )
 754                 w += ( ((int)p->m_depth-1) * pg->m_subgroup_extramargin );
 755
 756             //
 757             // TODO: Add bitmap support.
 758
 759             w += (wxPG_XBEFORETEXT*2);
 760
 761             if ( w > maxW )
 762                 maxW = w;
 763         }
 764
 765         if ( p->GetChildCount() &&
 766              ( subProps || p->IsCategory() ) )
 767         {
 768             w = GetColumnFitWidth( dc, p, col, subProps );
 769
 770             if ( w > maxW )
 771                 maxW = w;
 772         }
 773     }
 774
 775     return maxW;
 776 }
 777
 778 int wxPropertyGridPageState::DoGetSplitterPosition( int splitterColumn ) const
 779 {
 780     int n = GetGrid()->m_marginWidth;
 781     int i;
 782     for ( i=0; i<=splitterColumn; i++ )
 783         n += m_colWidths[i];
 784     return n;
 785 }
 786
 787 int wxPropertyGridPageState::GetColumnMinWidth( int WXUNUSED(column) ) const
 788 {
 789     return wxPG_DRAG_MARGIN;
 790 }
 791
 792 void wxPropertyGridPageState::PropagateColSizeDec( int column, int decrease, int dir )
 793 {
 794     int origWidth = m_colWidths[column];
 795     m_colWidths[column] -= decrease;
 796     int min = GetColumnMinWidth(column);
 797     int more = 0;
 798     if ( m_colWidths[column] < min )
 799     {
 800         more = decrease - (origWidth - min);
 801         m_colWidths[column] = min;
 802     }
 803
 804     //
 805     // FIXME: Causes erratic splitter changing, so as a workaround
 806     //        disabled if two or less columns.
 807
 808     if ( m_colWidths.size() <= 2 )
 809         return;
 810
 811     column += dir;
 812     if ( more && column < (int)m_colWidths.size() && column >= 0 )
 813         PropagateColSizeDec( column, more, dir );
 814 }
 815
 816 void wxPropertyGridPageState::DoSetSplitterPosition( int newXPos, int splitterColumn, bool WXUNUSED(allPages), bool fromAutoCenter )
 817 {
 818     wxPropertyGrid* pg = GetGrid();
 819
 820     int adjust = newXPos - DoGetSplitterPosition(splitterColumn);
 821
 822     if ( !pg->HasVirtualWidth() )
 823     {
 824         // No virtual width
 825         int otherColumn;
 826         if ( adjust > 0 )
 827         {
 828             otherColumn = splitterColumn + 1;
 829             if ( otherColumn == (int)m_colWidths.size() )
 830                 otherColumn = 0;
 831             m_colWidths[splitterColumn] += adjust;
 832             PropagateColSizeDec( otherColumn, adjust, 1 );
 833         }
 834         else
 835         {
 836             otherColumn = splitterColumn + 1;
 837             if ( otherColumn == (int)m_colWidths.size() )
 838                 otherColumn = 0;
 839             m_colWidths[otherColumn] -= adjust;
 840             PropagateColSizeDec( splitterColumn, -adjust, -1 );
 841         }
 842     }
 843     else
 844     {
 845         m_colWidths[splitterColumn] += adjust;
 846     }
 847
 848     if ( splitterColumn == 0 )
 849         m_fSplitterX = (double) newXPos;
 850
 851     if ( !fromAutoCenter )
 852     {
 853         // Don't allow initial splitter auto-positioning after this.
 854         if ( pg->GetState() == this )
 855             pg->SetInternalFlag(wxPG_FL_SPLITTER_PRE_SET);
 856
 857         CheckColumnWidths();
 858     }
 859 }
 860
 861 // Moves splitter so that all labels are visible, but just.
 862 void wxPropertyGridPageState::SetSplitterLeft( bool subProps )
 863 {
 864     wxPropertyGrid* pg = GetGrid();
 865     wxClientDC dc(pg);
 866     dc.SetFont(pg->GetFont());
 867
 868     int maxW = GetColumnFitWidth(dc, m_properties, 0, subProps);
 869
 870     if ( maxW > 0 )
 871     {
 872         maxW += pg->m_marginWidth;
 873         DoSetSplitterPosition( maxW );
 874     }
 875
 876     pg->SetInternalFlag(wxPG_FL_DONT_CENTER_SPLITTER);
 877 }
 878
 879 wxSize wxPropertyGridPageState::DoFitColumns( bool WXUNUSED(allowGridResize) )
 880 {
 881     wxPropertyGrid* pg = GetGrid();
 882     wxClientDC dc(pg);
 883     dc.SetFont(pg->GetFont());
 884
 885     int marginWidth = pg->m_marginWidth;
 886     int accWid = marginWidth;
 887     int maxColWidth = 500;
 888
 889     for ( unsigned int col=0; col < GetColumnCount(); col++ )
 890     {
 891         int fitWid = GetColumnFitWidth(dc, m_properties, col, true);
 892         int colMinWidth = GetColumnMinWidth(col);
 893         if ( fitWid < colMinWidth )
 894             fitWid = colMinWidth;
 895         else if ( fitWid > maxColWidth )
 896             fitWid = maxColWidth;
 897
 898         m_colWidths[col] = fitWid;
 899
 900         accWid += fitWid;
 901     }
 902
 903     // Expand last one to fill the width
 904     int remaining = m_width - accWid;
 905     m_colWidths[GetColumnCount()-1] += remaining;
 906
 907     pg->SetInternalFlag(wxPG_FL_DONT_CENTER_SPLITTER);
 908
 909     int firstSplitterX = marginWidth + m_colWidths[0];
 910     m_fSplitterX = (double) firstSplitterX;
 911
 912     // Don't allow initial splitter auto-positioning after this.
 913     if ( pg->GetState() == this )
 914     {
 915         pg->SetSplitterPosition(firstSplitterX, false);
 916         pg->Refresh();
 917     }
 918
 919     int x, y;
 920     pg->GetVirtualSize(&x, &y);
 921
 922     return wxSize(accWid, y);
 923 }
 924
 925 void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
 926 {
 927     if ( m_width == 0 )
 928         return;
 929
 930     wxPropertyGrid* pg = GetGrid();
 931
 932 #ifdef __WXDEBUG__
 933     const bool debug = false;
 934 #endif
 935
 936     unsigned int i;
 937     unsigned int lastColumn = m_colWidths.size() - 1;
 938     int width = m_width;
 939     int clientWidth = pg->GetClientSize().x;
 940
 941     //
 942     // Column to reduce, if needed. Take last one that exceeds minimum width.
 943     // Except if auto splitter centering is used, in which case use widest.
 944     int reduceCol = -1;
 945     int highestColWidth = 0;
 946
 947 #ifdef __WXDEBUG__
 948     if ( debug )
 949         wxLogDebug(wxT("ColumnWidthCheck (virtualWidth: %i, clientWidth: %i)"), width, clientWidth);
 950 #endif
 951
 952     //
 953     // Check min sizes
 954     for ( i=0; i<m_colWidths.size(); i++ )
 955     {
 956         int min = GetColumnMinWidth(i);
 957         if ( m_colWidths[i] <= min )
 958         {
 959             m_colWidths[i] = min;
 960         }
 961         else
 962         {
 963             if ( pg->HasFlag(wxPG_SPLITTER_AUTO_CENTER) )
 964             {
 965                 if ( m_colWidths[i] >= highestColWidth )
 966                 {
 967                     highestColWidth = m_colWidths[i];
 968                     reduceCol = i;
 969                 }
 970             }
 971             else
 972             {
 973                 reduceCol = i;
 974             }
 975         }
 976     }
 977
 978     int colsWidth = pg->m_marginWidth;
 979     for ( i=0; i<m_colWidths.size(); i++ )
 980         colsWidth += m_colWidths[i];
 981
 982 #ifdef __WXDEBUG__
 983     if ( debug )
 984         wxLogDebug(wxT("  HasVirtualWidth: %i  colsWidth: %i"),(int)pg->HasVirtualWidth(),colsWidth);
 985 #endif
 986
 987     // Then mode-based requirement
 988     if ( !pg->HasVirtualWidth() )
 989     {
 990         int widthHigher = width - colsWidth;
 991
 992         // Adapt colsWidth to width
 993         if ( colsWidth < width )
 994         {
 995             // Increase column
 996 #ifdef __WXDEBUG__
 997             if ( debug )
 998                 wxLogDebug(wxT("  Adjust last column to %i"), m_colWidths[lastColumn] + widthHigher);
 999 #endif
1000             m_colWidths[lastColumn] = m_colWidths[lastColumn] + widthHigher;
1001         }
1002         else if ( colsWidth > width )
1003         {
1004             // Reduce column
1005             if ( reduceCol != -1 )
1006             {
1007             #ifdef __WXDEBUG__
1008                 if ( debug )
1009                     wxLogDebug(wxT("  Reduce column %i (by %i)"), reduceCol, -widthHigher);
1010             #endif
1011                 // Reduce widest column, and recheck
1012                 m_colWidths[reduceCol] = m_colWidths[reduceCol] + widthHigher;
1013                 CheckColumnWidths();
1014             }
1015         }
1016     }
1017     else
1018     {
1019         // Only check colsWidth against clientWidth
1020         if ( colsWidth < clientWidth )
1021         {
1022             m_colWidths[lastColumn] = m_colWidths[lastColumn] + (clientWidth-colsWidth);
1023         }
1024
1025         m_width = colsWidth;
1026
1027         // If width changed, recalculate virtual size
1028         if ( pg->GetState() == this )
1029             pg->RecalculateVirtualSize();
1030     }
1031
1032 #ifdef __WXDEBUG__
1033     if ( debug )
1034         for ( i=0; i<m_colWidths.size(); i++ )
1035             wxLogDebug(wxT("col%i: %i"),i,m_colWidths[i]);
1036 #endif
1037
1038     // Auto center splitter
1039     if ( !(pg->GetInternalFlags() & wxPG_FL_DONT_CENTER_SPLITTER) &&
1040          m_colWidths.size() == 2 )
1041     {
1042         float centerX = (float)(pg->m_width/2);
1043         float splitterX;
1044
1045         if ( m_fSplitterX < 0.0 )
1046         {
1047             splitterX = centerX;
1048         }
1049         else if ( widthChange )
1050         {
1051             //float centerX = float(pg->GetSize().x) * 0.5;
1052
1053             // Recenter?
1054             splitterX = m_fSplitterX + (float(widthChange) * 0.5);
1055             float deviation = fabs(centerX - splitterX);
1056
1057             // If deviating from center, adjust towards it
1058             if ( deviation > 20.0 )
1059             {
1060                 if ( splitterX > centerX)
1061                     splitterX -= 2;
1062                 else
1063                     splitterX += 2;
1064             }
1065         }
1066         else
1067         {
1068             // No width change, just keep sure we keep splitter position intact
1069             splitterX = m_fSplitterX;
1070             float deviation = fabs(centerX - splitterX);
1071             if ( deviation > 50.0 )
1072             {
1073                 splitterX = centerX;
1074             }
1075         }
1076
1077         DoSetSplitterPosition((int)splitterX, 0, false, true);
1078
1079         m_fSplitterX = splitterX; // needed to retain accuracy
1080     }
1081 }
1082
1083 void wxPropertyGridPageState::SetColumnCount( int colCount )
1084 {
1085     wxASSERT( colCount >= 2 );
1086     m_colWidths.SetCount( colCount, wxPG_DRAG_MARGIN );
1087     if ( m_colWidths.size() > (unsigned int)colCount )
1088         m_colWidths.RemoveAt( m_colWidths.size(), m_colWidths.size() - colCount );
1089
1090     if ( m_pPropGrid->GetState() == this )
1091         m_pPropGrid->RecalculateVirtualSize();
1092     else
1093         CheckColumnWidths();
1094 }
1095
1096 // Returns column index, -1 for margin
1097 int wxPropertyGridPageState::HitTestH( int x, int* pSplitterHit, int* pSplitterHitOffset ) const
1098 {
1099     int cx = GetGrid()->m_marginWidth;
1100     int col = -1;
1101     int prevSplitter = -1;
1102
1103     while ( x > cx )
1104     {
1105         col++;
1106         if ( col >= (int)m_colWidths.size() )
1107         {
1108             *pSplitterHit = -1;
1109             return col;
1110         }
1111         prevSplitter = cx;
1112         cx += m_colWidths[col];
1113     }
1114
1115     // Near prev. splitter
1116     if ( col >= 1 )
1117     {
1118         int diff = x - prevSplitter;
1119         if ( abs(diff) < wxPG_SPLITTERX_DETECTMARGIN1 )
1120         {
1121             *pSplitterHit = col - 1;
1122             *pSplitterHitOffset = diff;
1123             return col;
1124         }
1125     }
1126
1127     // Near next splitter
1128     int nextSplitter = cx;
1129     if ( col < (int)(m_colWidths.size()-1) )
1130     {
1131         int diff = x - nextSplitter;
1132         if ( abs(diff) < wxPG_SPLITTERX_DETECTMARGIN1 )
1133         {
1134             *pSplitterHit = col;
1135             *pSplitterHitOffset = diff;
1136             return col;
1137         }
1138     }
1139
1140     *pSplitterHit = -1;
1141     return col;
1142 }
1143
1144 // -----------------------------------------------------------------------
1145 // wxPropertyGridPageState property value setting and getting
1146 // -----------------------------------------------------------------------
1147
1148 bool wxPropertyGridPageState::DoSetPropertyValueString( wxPGProperty* p, const wxString& value )
1149 {
1150     if ( p )
1151     {
1152         int flags = wxPG_REPORT_ERROR|wxPG_FULL_VALUE|wxPG_PROGRAMMATIC_VALUE;
1153
1154         wxVariant variant = p->GetValueRef();
1155         bool res;
1156
1157         if ( p->GetMaxLength() <= 0 )
1158             res = p->StringToValue( variant, value, flags );
1159         else
1160             res = p->StringToValue( variant, value.Mid(0,p->GetMaxLength()), flags );
1161
1162         if ( res )
1163         {
1164             p->SetValue(variant);
1165             if ( m_selected==p && this==m_pPropGrid->GetState() )
1166                 m_pPropGrid->RefreshEditor();
1167         }
1168
1169         return true;
1170     }
1171     return false;
1172 }
1173
1174 // -----------------------------------------------------------------------
1175
1176 bool wxPropertyGridPageState::DoSetPropertyValue( wxPGProperty* p, wxVariant& value )
1177 {
1178     if ( p )
1179     {
1180         p->SetValue(value);
1181         if ( m_selected==p && this==m_pPropGrid->GetState() )
1182             m_pPropGrid->RefreshEditor();
1183
1184         return true;
1185     }
1186     return false;
1187 }
1188
1189 // -----------------------------------------------------------------------
1190
1191 bool wxPropertyGridPageState::DoSetPropertyValueWxObjectPtr( wxPGProperty* p, wxObject* value )
1192 {
1193     if ( p )
1194     {
1195         // wnd_primary has to be given so the control can be updated as well.
1196         wxVariant v(value);
1197         DoSetPropertyValue(p, v);
1198         return true;
1199     }
1200     return false;
1201 }
1202
1203 // -----------------------------------------------------------------------
1204 // wxPropertyGridPageState property operations
1205 // -----------------------------------------------------------------------
1206
1207 bool wxPropertyGridPageState::DoCollapse( wxPGProperty* p )
1208 {
1209     wxCHECK_MSG( p, false, wxT("invalid property id") );
1210
1211     if ( !p->GetChildCount() ) return false;
1212
1213     if ( !p->IsExpanded() ) return false;
1214
1215     p->SetExpanded(false);
1216
1217     VirtualHeightChanged();
1218
1219     return true;
1220 }
1221
1222 // -----------------------------------------------------------------------
1223
1224 bool wxPropertyGridPageState::DoExpand( wxPGProperty* p )
1225 {
1226     wxCHECK_MSG( p, false, wxT("invalid property id") );
1227
1228     if ( !p->GetChildCount() ) return false;
1229
1230     if ( p->IsExpanded() ) return false;
1231
1232     p->SetExpanded(true);
1233
1234     VirtualHeightChanged();
1235
1236     return true;
1237 }
1238
1239 // -----------------------------------------------------------------------
1240
1241 bool wxPropertyGridPageState::DoSelectProperty( wxPGProperty* p, unsigned int flags )
1242 {
1243     if ( this == m_pPropGrid->GetState() )
1244         return m_pPropGrid->DoSelectProperty( p, flags );
1245
1246     m_selected = p;
1247     return true;
1248 }
1249
1250 // -----------------------------------------------------------------------
1251
1252 bool wxPropertyGridPageState::DoHideProperty( wxPGProperty* p, bool hide, int flags )
1253 {
1254     if ( !hide )
1255         p->ClearFlag( wxPG_PROP_HIDDEN );
1256     else
1257         p->SetFlag( wxPG_PROP_HIDDEN );
1258
1259     if ( flags & wxPG_RECURSE )
1260     {
1261         unsigned int i;
1262         for ( i = 0; i < p->GetChildCount(); i++ )
1263             DoHideProperty(p->Item(i), hide, flags | wxPG_RECURSE_STARTS);
1264     }
1265
1266     VirtualHeightChanged();
1267
1268     return true;
1269 }
1270
1271 // -----------------------------------------------------------------------
1272
1273 bool wxPropertyGridPageState::DoEnableProperty( wxPGProperty* p, bool enable )
1274 {
1275     if ( p )
1276     {
1277         if ( enable )
1278         {
1279             if ( !(p->m_flags & wxPG_PROP_DISABLED) )
1280                 return false;
1281
1282             // Enabling
1283
1284             p->m_flags &= ~(wxPG_PROP_DISABLED);
1285         }
1286         else
1287         {
1288             if ( p->m_flags & wxPG_PROP_DISABLED )
1289                 return false;
1290
1291             // Disabling
1292
1293             p->m_flags |= wxPG_PROP_DISABLED;
1294
1295         }
1296
1297         // Apply same to sub-properties as well
1298         unsigned int i;
1299         for ( i = 0; i < p->GetChildCount(); i++ )
1300             DoEnableProperty( p->Item(i), enable );
1301
1302         return true;
1303     }
1304     return false;
1305 }
1306
1307 // -----------------------------------------------------------------------
1308 // wxPropertyGridPageState wxVariant related routines
1309 // -----------------------------------------------------------------------
1310
1311 // Returns list of wxVariant objects (non-categories and non-sub-properties only).
1312 // Never includes sub-properties (unless they are parented by wxParentProperty).
1313 wxVariant wxPropertyGridPageState::DoGetPropertyValues( const wxString& listname,
1314                                                     wxPGProperty* baseparent,
1315                                                     long flags ) const
1316 {
1317     wxPGProperty* pwc = (wxPGProperty*) baseparent;
1318
1319     // Root is the default base-parent.
1320     if ( !pwc )
1321         pwc = m_properties;
1322
1323     wxVariantList tempList;
1324     wxVariant v( tempList, listname );
1325
1326     if ( pwc->GetChildCount() )
1327     {
1328         if ( flags & wxPG_KEEP_STRUCTURE )
1329         {
1330             wxASSERT( !pwc->HasFlag(wxPG_PROP_AGGREGATE) );
1331
1332             size_t i;
1333             for ( i=0; i<pwc->GetChildCount(); i++ )
1334             {
1335                 wxPGProperty* p = pwc->Item(i);
1336                 if ( !p->GetChildCount() || p->HasFlag(wxPG_PROP_AGGREGATE) )
1337                 {
1338                     wxVariant variant = p->GetValue();
1339                     variant.SetName( p->GetBaseName() );
1340                     v.Append( variant );
1341                 }
1342                 else
1343                 {
1344                     v.Append( DoGetPropertyValues(p->m_name,p,flags|wxPG_KEEP_STRUCTURE) );
1345                 }
1346                 if ( (flags & wxPG_INC_ATTRIBUTES) && p->m_attributes.GetCount() )
1347                     v.Append( p->GetAttributesAsList() );
1348             }
1349         }
1350         else
1351         {
1352             wxPropertyGridConstIterator it( this, wxPG_ITERATE_DEFAULT, pwc->Item(0) );
1353             it.SetBaseParent( pwc );
1354
1355             for ( ; !it.AtEnd(); it.Next() )
1356             {
1357                 const wxPGProperty* p = it.GetProperty();
1358
1359                 // Use a trick to ignore wxParentProperty itself, but not its sub-properties.
1360                 if ( !p->GetChildCount() || p->HasFlag(wxPG_PROP_AGGREGATE) )
1361                 {
1362                     wxVariant variant = p->GetValue();
1363                     variant.SetName( p->GetName() );
1364                     v.Append( variant );
1365                     if ( (flags & wxPG_INC_ATTRIBUTES) && p->m_attributes.GetCount() )
1366                         v.Append( p->GetAttributesAsList() );
1367                 }
1368             }
1369         }
1370     }
1371
1372     return v;
1373 }
1374
1375 // -----------------------------------------------------------------------
1376
1377 void wxPropertyGridPageState::DoSetPropertyValues( const wxVariantList& list, wxPGProperty* defaultCategory )
1378 {
1379     unsigned char origFrozen = 1;
1380
1381     if ( m_pPropGrid->GetState() == this )
1382     {
1383         origFrozen = m_pPropGrid->m_frozen;
1384         if ( !origFrozen ) m_pPropGrid->Freeze();
1385     }
1386
1387     wxPropertyCategory* use_category = (wxPropertyCategory*)defaultCategory;
1388
1389     if ( !use_category )
1390         use_category = (wxPropertyCategory*)m_properties;
1391
1392     // Let's iterate over the list of variants.
1393     wxVariantList::const_iterator node;
1394     int numSpecialEntries = 0;
1395
1396     //
1397     // Second pass for special entries
1398     for ( node = list.begin(); node != list.end(); ++node )
1399     {
1400         wxVariant *current = (wxVariant*)*node;
1401
1402         // Make sure it is wxVariant.
1403         wxASSERT( current );
1404         wxASSERT( wxStrcmp(current->GetClassInfo()->GetClassName(),wxT("wxVariant")) == 0 );
1405
1406         const wxString& name = current->GetName();
1407         if ( name.length() > 0 )
1408         {
1409             //
1410             // '@' signified a special entry
1411             if ( name[0] == wxS('@') )
1412             {
1413                 numSpecialEntries++;
1414             }
1415             else
1416             {
1417                 wxPGProperty* foundProp = BaseGetPropertyByName(name);
1418                 if ( foundProp )
1419                 {
1420                     wxPGProperty* p = foundProp;
1421
1422                     // If it was a list, we still have to go through it.
1423                     if ( wxStrcmp(current->GetType(), wxS("list")) == 0 )
1424                     {
1425                         DoSetPropertyValues( current->GetList(),
1426                                 p->IsCategory()?p:(NULL)
1427                             );
1428                     }
1429                     else
1430                     {
1431                 #ifdef __WXDEBUG__
1432                         if ( wxStrcmp(current->GetType(), p->GetValue().GetType()) != 0)
1433                         {
1434                             wxLogDebug(wxT("wxPropertyGridPageState::DoSetPropertyValues Warning: Setting value of property \"%s\" from variant"),
1435                                 p->GetName().c_str());
1436                         }
1437                 #endif
1438
1439                         p->SetValue(*current);
1440                     }
1441                 }
1442                 else
1443                 {
1444                     // Is it list?
1445                     if ( current->GetType() != wxS("list") )
1446                     {
1447                         // Not.
1448                     }
1449                     else
1450                     {
1451                         // Yes, it is; create a sub category and append contents there.
1452                         wxPGProperty* newCat = DoInsert(use_category,-1,new wxPropertyCategory(current->GetName(),wxPG_LABEL));
1453                         DoSetPropertyValues( current->GetList(), newCat );
1454                     }
1455                 }
1456             }
1457         }
1458     }
1459
1460     if ( numSpecialEntries )
1461     {
1462         for ( node = list.begin(); node != list.end(); ++node )
1463         {
1464             wxVariant *current = (wxVariant*)*node;
1465
1466             const wxString& name = current->GetName();
1467             if ( name.length() > 0 )
1468             {
1469                 //
1470                 // '@' signified a special entry
1471                 if ( name[0] == wxS('@') )
1472                 {
1473                     numSpecialEntries--;
1474
1475                     size_t pos2 = name.rfind(wxS('@'));
1476                     if ( pos2 > 0 && pos2 < (name.size()-1) )
1477                     {
1478                         wxString propName = name.substr(1, pos2-1);
1479                         wxString entryType = name.substr(pos2+1, wxString::npos);
1480
1481                         if ( entryType == wxS("attr") )
1482                         {
1483                             //
1484                             // List of attributes
1485                             wxPGProperty* foundProp = BaseGetPropertyByName(propName);
1486                             if ( foundProp )
1487                             {
1488                                 wxASSERT( current->GetType() == wxPG_VARIANT_TYPE_LIST );
1489
1490                                 wxVariantList& list2 = current->GetList();
1491                                 wxVariantList::const_iterator node2;
1492
1493                                 for ( node2 = list2.begin(); node2 != list2.end(); ++node2 )
1494                                 {
1495                                     wxVariant *attr = (wxVariant*)*node2;
1496                                     foundProp->SetAttribute( attr->GetName(), *attr );
1497                                 }
1498                             }
1499                             else
1500                             {
1501                                 // ERROR: No such property: 'propName'
1502                             }
1503                         }
1504                     }
1505                     else
1506                     {
1507                         // ERROR: Special entry requires name of format @<propname>@<entrytype>
1508                     }
1509                 }
1510             }
1511
1512             if ( !numSpecialEntries )
1513                 break;
1514         }
1515     }
1516
1517     if ( !origFrozen )
1518     {
1519         m_pPropGrid->Thaw();
1520
1521         if ( this == m_pPropGrid->GetState() )
1522             m_pPropGrid->RefreshEditor();
1523     }
1524
1525 }
1526
1527 // -----------------------------------------------------------------------
1528 // wxPropertyGridPageState property adding and removal
1529 // -----------------------------------------------------------------------
1530
1531 bool wxPropertyGridPageState::PrepareToAddItem( wxPGProperty* property,
1532                                                 wxPGProperty* scheduledParent )
1533 {
1534     wxPropertyGrid* propGrid = m_pPropGrid;
1535
1536     // This will allow better behavior.
1537     if ( scheduledParent == m_properties )
1538         scheduledParent = NULL;
1539
1540     if ( scheduledParent && !scheduledParent->IsCategory() )
1541     {
1542         wxASSERT_MSG( property->GetBaseName().length(),
1543                       "Property's children must have unique, non-empty names within their scope" );
1544     }
1545
1546     property->m_parentState = this;
1547
1548     if ( property->IsCategory() )
1549     {
1550
1551         // Parent of a category must be either root or another category
1552         // (otherwise Bad Things might happen).
1553         wxASSERT_MSG( scheduledParent == NULL ||
1554                       scheduledParent == m_properties ||
1555                       scheduledParent->IsCategory(),
1556                  wxT("Parent of a category must be either root or another category."));
1557
1558         // If we already have category with same name, delete given property
1559         // and use it instead as most recent caption item.
1560         wxPGProperty* found_id = BaseGetPropertyByName( property->GetBaseName() );
1561         if ( found_id )
1562         {
1563             wxPropertyCategory* pwc = (wxPropertyCategory*) found_id;
1564             if ( pwc->IsCategory() ) // Must be a category.
1565             {
1566                 delete property;
1567                 m_currentCategory = pwc;
1568                 return false;
1569             }
1570         }
1571     }
1572
1573 #ifdef __WXDEBUG__
1574     // Warn for identical names in debug mode.
1575     if ( BaseGetPropertyByName(property->GetName()) &&
1576          (!scheduledParent || scheduledParent->IsCategory()) )
1577     {
1578         wxLogError(wxT("wxPropertyGrid: Warning - item with name \"%s\" already exists."),
1579             property->GetName().c_str());
1580         wxPGGlobalVars->m_warnings++;
1581     }
1582 #endif
1583
1584     // Make sure nothing is selected.
1585     if ( propGrid )
1586         propGrid->ClearSelection(false);
1587
1588     // NULL parent == root parent
1589     if ( !scheduledParent )
1590         scheduledParent = DoGetRoot();
1591
1592     property->m_parent = scheduledParent;
1593
1594     property->InitAfterAdded(this, propGrid);
1595
1596     if ( property->IsCategory() )
1597     {
1598         wxPropertyCategory* pc = wxStaticCast(property, wxPropertyCategory);
1599
1600         m_currentCategory = pc;
1601
1602         // Calculate text extent for category caption
1603         if ( propGrid )
1604             pc->CalculateTextExtent(propGrid, propGrid->GetCaptionFont());
1605     }
1606
1607     return true;
1608 }
1609
1610 // -----------------------------------------------------------------------
1611
1612 wxPGProperty* wxPropertyGridPageState::DoAppend( wxPGProperty* property )
1613 {
1614     wxPropertyCategory* cur_cat = m_currentCategory;
1615     if ( property->IsCategory() )
1616         cur_cat = NULL;
1617
1618     return DoInsert( cur_cat, -1, property );
1619 }
1620
1621 // -----------------------------------------------------------------------
1622
1623 wxPGProperty* wxPropertyGridPageState::DoInsert( wxPGProperty* parent, int index, wxPGProperty* property )
1624 {
1625     if ( !parent )
1626         parent = m_properties;
1627
1628     wxCHECK_MSG( !parent->HasFlag(wxPG_PROP_AGGREGATE),
1629                  wxNullProperty,
1630                  wxT("when adding properties to fixed parents, use BeginAddChildren and EndAddChildren.") );
1631
1632     bool res = PrepareToAddItem( property, (wxPropertyCategory*)parent );
1633
1634     // PrepareToAddItem() may just decide to use use current category
1635     // instead of adding new one.
1636     if ( !res )
1637         return m_currentCategory;
1638
1639     bool parentIsRoot = parent->IsRoot();
1640     bool parentIsCategory = parent->IsCategory();
1641
1642     // Note that item must be added into current mode later.
1643
1644     // If parent is wxParentProperty, just stick it in...
1645     // If parent is root (m_properties), then...
1646     //   In categoric mode: Add as last item in m_abcArray (if not category).
1647     //                      Add to given index in m_regularArray.
1648     //   In non-cat mode:   Add as last item in m_regularArray.
1649     //                      Add to given index in m_abcArray.
1650     // If parent is category, then...
1651     //   1) Add to given category in given index.
1652     //   2) Add as last item in m_abcArray.
1653
1654     if ( m_properties == &m_regularArray )
1655     {
1656         // We are currently in Categorized mode
1657
1658         // Only add non-categories to m_abcArray.
1659         if ( m_abcArray && !property->IsCategory() &&
1660              (parentIsCategory || parentIsRoot) )
1661         {
1662             m_abcArray->AddChild2( property, -1, false );
1663         }
1664
1665         // Add to current mode.
1666         parent->AddChild2( property, index, true );
1667     }
1668     else
1669     {
1670         // We are currently in Non-categorized/Alphabetic mode
1671
1672         if ( parentIsCategory )
1673             // Parent is category.
1674             parent->AddChild2( property, index, false );
1675         else if ( parentIsRoot )
1676             // Parent is root.
1677             m_regularArray.AddChild2( property, -1, false );
1678
1679         // Add to current mode
1680         if ( !property->IsCategory() )
1681             m_abcArray->AddChild2( property, index, true );
1682     }
1683
1684     // category stuff
1685     if ( property->IsCategory() )
1686     {
1687         // This is a category caption item.
1688
1689         // Last caption is not the bottom one (this info required by append)
1690         m_lastCaptionBottomnest = 0;
1691     }
1692
1693     // Only add name to hashmap if parent is root or category
1694     if ( property->m_name.length() &&
1695         (parentIsCategory || parentIsRoot) )
1696         m_dictName[property->m_name] = (void*) property;
1697
1698     VirtualHeightChanged();
1699
1700     property->UpdateParentValues();
1701
1702     m_itemsAdded = 1;
1703
1704     return property;
1705 }
1706
1707 // -----------------------------------------------------------------------
1708
1709 void wxPropertyGridPageState::DoDelete( wxPGProperty* item, bool doDelete )
1710 {
1711     wxCHECK_RET( item->GetParent(),
1712         wxT("this property was already deleted") );
1713
1714     wxCHECK_RET( item != &m_regularArray && item != m_abcArray,
1715         wxT("wxPropertyGrid: Do not attempt to remove the root item.") );
1716
1717     unsigned int indinparent = item->GetIndexInParent();
1718
1719     wxPGProperty* pwc = (wxPGProperty*)item;
1720     wxPGProperty* parent = item->GetParent();
1721
1722     wxCHECK_RET( !parent->HasFlag(wxPG_PROP_AGGREGATE),
1723         wxT("wxPropertyGrid: Do not attempt to remove sub-properties.") );
1724
1725     // Delete children
1726     if ( item->GetChildCount() && !item->HasFlag(wxPG_PROP_AGGREGATE) )
1727     {
1728         // deleting a category
1729         if ( item->IsCategory() )
1730         {
1731             if ( pwc == m_currentCategory )
1732                 m_currentCategory = NULL;
1733         }
1734
1735         item->DeleteChildren();
1736     }
1737
1738     if ( !IsInNonCatMode() )
1739     {
1740         // categorized mode - non-categorized array
1741
1742         // Remove from non-cat array
1743         if ( !item->IsCategory() &&
1744              (parent->IsCategory() || parent->IsRoot()) )
1745         {
1746             if ( m_abcArray )
1747                 m_abcArray->RemoveChild(item);
1748         }
1749
1750         // categorized mode - categorized array
1751         wxArrayPGProperty& parentsChildren = parent->m_children;
1752         parentsChildren.erase( parentsChildren.begin() + indinparent );
1753         item->m_parent->FixIndicesOfChildren();
1754     }
1755     else
1756     {
1757         // non-categorized mode - categorized array
1758
1759         // We need to find location of item.
1760         wxPGProperty* cat_parent = &m_regularArray;
1761         int cat_index = m_regularArray.GetChildCount();
1762         size_t i;
1763         for ( i = 0; i < m_regularArray.GetChildCount(); i++ )
1764         {
1765             wxPGProperty* p = m_regularArray.Item(i);
1766             if ( p == item ) { cat_index = i; break; }
1767             if ( p->IsCategory() )
1768             {
1769                 int subind = ((wxPGProperty*)p)->Index(item);
1770                 if ( subind != wxNOT_FOUND )
1771                 {
1772                     cat_parent = ((wxPGProperty*)p);
1773                     cat_index = subind;
1774                     break;
1775                 }
1776             }
1777         }
1778         cat_parent->m_children.erase(cat_parent->m_children.begin()+cat_index);
1779
1780         // non-categorized mode - non-categorized array
1781         if ( !item->IsCategory() )
1782         {
1783             wxASSERT( item->m_parent == m_abcArray );
1784             wxArrayPGProperty& parentsChildren = item->m_parent->m_children;
1785             parentsChildren.erase(parentsChildren.begin() + indinparent);
1786             item->m_parent->FixIndicesOfChildren(indinparent);
1787         }
1788     }
1789
1790     if ( item->GetBaseName().length() &&
1791          (parent->IsCategory() || parent->IsRoot()) )
1792         m_dictName.erase(item->GetBaseName());
1793
1794     // We can actually delete it now
1795     if ( doDelete )
1796         delete item;
1797
1798     m_itemsAdded = 1; // Not a logical assignment (but required nonetheless).
1799
1800     VirtualHeightChanged();
1801 }
1802
1803 // -----------------------------------------------------------------------
1804
1805 #endif  // wxUSE_PROPGRID