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;
  78
  79     if ( startPos == wxTOP )
  80     {
  81         property = NULL;
  82         if ( dir == 0 )
  83             dir = 1;
  84     }
  85     else if ( startPos == wxBOTTOM )
  86     {
  87         property = state->GetLastItem(flags);
  88         if ( dir == 0 )
  89             dir = -1;
  90     }
  91     else
  92     {
  93         wxASSERT_MSG( false, wxT("Only supported stating positions are wxTOP and wxBOTTOM") );
  94         property = NULL;
  95     }
  96
  97     Init( state, flags, property, dir );
  98 }
  99
 100 void wxPropertyGridIteratorBase::Assign( const wxPropertyGridIteratorBase& it )
 101 {
 102     m_property = it.m_property;
 103     m_state = it.m_state;
 104     m_baseParent = it.m_baseParent;
 105     m_itemExMask = it.m_itemExMask;
 106     m_parentExMask = it.m_parentExMask;
 107 }
 108
 109 void wxPropertyGridIteratorBase::Prev()
 110 {
 111     wxPGProperty* property = m_property;
 112     wxASSERT( property );
 113
 114     wxPGProperty* parent = property->GetParent();
 115     wxASSERT( parent );
 116     unsigned int index = property->GetIndexInParent();
 117
 118     if ( index > 0 )
 119     {
 120         // Previous sibling
 121         index--;
 122
 123         property = parent->Item(index);
 124
 125         // Go to last children?
 126         if ( property->GetChildCount() &&
 127              wxPG_ITERATOR_PARENTEXMASK_TEST(property, m_parentExMask) )
 128         {
 129             // First child
 130             property = property->Last();
 131         }
 132     }
 133     else
 134     {
 135         // Up to a parent
 136         if ( parent == m_baseParent )
 137         {
 138             m_property = NULL;
 139             return;
 140         }
 141         else
 142         {
 143             property = parent;
 144         }
 145     }
 146
 147     m_property = property;
 148
 149     // If property does not match our criteria, skip it
 150     if ( property->GetFlags() & m_itemExMask )
 151         Prev();
 152 }
 153
 154 void wxPropertyGridIteratorBase::Next( bool iterateChildren )
 155 {
 156     wxPGProperty* property = m_property;
 157     wxASSERT( property );
 158
 159     if ( property->GetChildCount() &&
 160          wxPG_ITERATOR_PARENTEXMASK_TEST(property, m_parentExMask) &&
 161          iterateChildren )
 162     {
 163         // First child
 164         property = property->Item(0);
 165     }
 166     else
 167     {
 168         wxPGProperty* parent = property->GetParent();
 169         wxASSERT( parent );
 170         unsigned int index = property->GetIndexInParent() + 1;
 171
 172         if ( index < parent->GetChildCount() )
 173         {
 174             // Next sibling
 175             property = parent->Item(index);
 176         }
 177         else
 178         {
 179             // Next sibling of parent
 180             if ( parent == m_baseParent )
 181             {
 182                 m_property = NULL;
 183             }
 184             else
 185             {
 186                 m_property = parent;
 187                 Next(false);
 188             }
 189             return;
 190         }
 191     }
 192
 193     m_property = property;
 194
 195     // If property does not match our criteria, skip it
 196     if ( property->GetFlags() & m_itemExMask )
 197         Next();
 198 }
 199
 200 // -----------------------------------------------------------------------
 201 // wxPropertyGridPageState
 202 // -----------------------------------------------------------------------
 203
 204 wxPropertyGridPageState::wxPropertyGridPageState()
 205 {
 206     m_pPropGrid = (wxPropertyGrid*) NULL;
 207     m_regularArray.SetParentState(this);
 208     m_properties = &m_regularArray;
 209     m_abcArray = (wxPGRootProperty*) NULL;
 210     m_currentCategory = (wxPropertyCategory*) NULL;
 211     m_selected = (wxPGProperty*) NULL;
 212     m_width = 0;
 213     m_virtualHeight = 0;
 214     m_lastCaptionBottomnest = 1;
 215     m_itemsAdded = 0;
 216     m_anyModified = 0;
 217     m_vhCalcPending = 0;
 218     m_colWidths.push_back( wxPG_DEFAULT_SPLITTERX );
 219     m_colWidths.push_back( wxPG_DEFAULT_SPLITTERX );
 220     m_fSplitterX = wxPG_DEFAULT_SPLITTERX;
 221 }
 222
 223 // -----------------------------------------------------------------------
 224
 225 wxPropertyGridPageState::~wxPropertyGridPageState()
 226 {
 227     delete m_abcArray;
 228 }
 229
 230 // -----------------------------------------------------------------------
 231
 232 void wxPropertyGridPageState::InitNonCatMode()
 233 {
 234     if ( !m_abcArray )
 235     {
 236         m_abcArray = new wxPGRootProperty();
 237         m_abcArray->SetParentState(this);
 238         m_abcArray->SetFlag(wxPG_PROP_CHILDREN_ARE_COPIES);
 239     }
 240
 241     // Must be called when state::m_properties still points to regularArray.
 242     wxPGProperty* oldProperties = m_properties;
 243
 244     // Must use temp value in state::m_properties for item iteration loop
 245     // to run as expected.
 246     m_properties = &m_regularArray;
 247
 248     if ( m_properties->GetChildCount() )
 249     {
 250         // Copy items.
 251         wxPropertyGridIterator it( this, wxPG_ITERATE_DEFAULT|wxPG_ITERATE_CATEGORIES );
 252
 253         for ( ; !it.AtEnd(); it.Next() )
 254         {
 255             wxPGProperty* p = it.GetProperty();
 256             wxPGProperty* parent = p->GetParent();
 257             if ( p->HasFlag(wxPG_PROP_MISC_PARENT) &&
 258                 ( parent == m_properties || (parent->IsCategory() || parent->IsRoot()) ) )
 259             {
 260                 m_abcArray->AddChild2( p );
 261                 p->m_parent = &m_regularArray;
 262             }
 263         }
 264     }
 265
 266     m_properties = oldProperties;
 267 }
 268
 269 // -----------------------------------------------------------------------
 270
 271 void wxPropertyGridPageState::DoClear()
 272 {
 273     m_regularArray.Empty();
 274     if ( m_abcArray )
 275         m_abcArray->Empty();
 276
 277     m_dictName.clear();
 278
 279     m_currentCategory = (wxPropertyCategory*) NULL;
 280     m_lastCaptionBottomnest = 1;
 281     m_itemsAdded = 0;
 282
 283     m_virtualHeight = 0;
 284     m_vhCalcPending = 0;
 285
 286     m_selected = (wxPGProperty*) NULL;
 287 }
 288
 289 // -----------------------------------------------------------------------
 290
 291 void wxPropertyGridPageState::CalculateFontAndBitmapStuff( int WXUNUSED(vspacing) )
 292 {
 293     wxPropertyGrid* propGrid = GetGrid();
 294
 295     VirtualHeightChanged();
 296
 297     // Recalculate caption text extents.
 298     unsigned int i;
 299
 300     for ( i=0;i<m_regularArray.GetChildCount();i++ )
 301     {
 302         wxPGProperty* p =m_regularArray.Item(i);
 303
 304         if ( p->IsCategory() )
 305             ((wxPropertyCategory*)p)->CalculateTextExtent(propGrid, propGrid->GetCaptionFont());
 306     }
 307 }
 308
 309 // -----------------------------------------------------------------------
 310
 311 void wxPropertyGridPageState::SetVirtualWidth( int width )
 312 {
 313     wxASSERT( width >= 0 );
 314     wxPropertyGrid* pg = GetGrid();
 315     int gw = pg->GetClientSize().x;
 316     if ( width < gw )
 317         width = gw;
 318
 319     m_width = width;
 320 }
 321
 322 // -----------------------------------------------------------------------
 323
 324 void wxPropertyGridPageState::OnClientWidthChange( int newWidth, int widthChange, bool fromOnResize )
 325 {
 326     wxPropertyGrid* pg = GetGrid();
 327
 328     if ( pg->HasVirtualWidth() )
 329     {
 330         if ( m_width < newWidth )
 331             SetVirtualWidth( newWidth );
 332
 333         CheckColumnWidths(widthChange);
 334     }
 335     else
 336     {
 337         SetVirtualWidth( newWidth );
 338
 339         // This should be done before splitter auto centering
 340         // NOTE: Splitter auto-centering is done in this function.
 341         if ( !fromOnResize )
 342             widthChange = 0;
 343         CheckColumnWidths(widthChange);
 344
 345         if ( !(GetGrid()->GetInternalFlags() & wxPG_FL_SPLITTER_PRE_SET) &&
 346              (GetGrid()->GetInternalFlags() & wxPG_FL_DONT_CENTER_SPLITTER) )
 347         {
 348             long timeSinceCreation = (::wxGetLocalTimeMillis() - GetGrid()->m_timeCreated).ToLong();
 349
 350             // If too long, don't set splitter
 351             if ( timeSinceCreation < 3000 )
 352             {
 353                 if ( m_properties->GetChildCount() || timeSinceCreation > 750 )
 354                 {
 355                     SetSplitterLeft( false );
 356                 }
 357                 else
 358                 {
 359                     DoSetSplitterPosition( newWidth / 2 );
 360                     GetGrid()->ClearInternalFlag(wxPG_FL_SPLITTER_PRE_SET);
 361                 }
 362             }
 363         }
 364     }
 365 }
 366
 367 // -----------------------------------------------------------------------
 368 // wxPropertyGridPageState item iteration methods
 369 // -----------------------------------------------------------------------
 370
 371 wxPGProperty* wxPropertyGridPageState::GetLastItem( int flags )
 372 {
 373     if ( !m_properties->GetChildCount() )
 374         return (wxPGProperty*) NULL;
 375
 376     wxPG_ITERATOR_CREATE_MASKS(flags, int itemExMask, int parentExMask)
 377
 378     // First, get last child of last parent
 379     wxPGProperty* pwc = (wxPGProperty*)m_properties->Last();
 380     while ( pwc->GetChildCount() &&
 381             wxPG_ITERATOR_PARENTEXMASK_TEST(pwc, parentExMask) )
 382         pwc = (wxPGProperty*) pwc->Last();
 383
 384     // Then, if it doesn't fit our criteria, back up until we find something that does
 385     if ( pwc->GetFlags() & itemExMask )
 386     {
 387         wxPropertyGridIterator it( this, flags, pwc );
 388         for ( ; !it.AtEnd(); it.Prev() )
 389             ;
 390         pwc = (wxPGProperty*) it.GetProperty();
 391     }
 392
 393     return pwc;
 394 }
 395
 396 wxPropertyCategory* wxPropertyGridPageState::GetPropertyCategory( const wxPGProperty* p ) const
 397 {
 398     const wxPGProperty* parent = (const wxPGProperty*)p;
 399     const wxPGProperty* grandparent = (const wxPGProperty*)parent->GetParent();
 400     do
 401     {
 402         parent = grandparent;
 403         grandparent = (wxPGProperty*)parent->GetParent();
 404         if ( parent->IsCategory() && grandparent )
 405             return (wxPropertyCategory*)parent;
 406     } while ( grandparent );
 407
 408     return (wxPropertyCategory*) NULL;
 409 }
 410
 411 // -----------------------------------------------------------------------
 412 // wxPropertyGridPageState GetPropertyXXX methods
 413 // -----------------------------------------------------------------------
 414
 415 wxPGProperty* wxPropertyGridPageState::GetPropertyByLabel( const wxString& label,
 416                                                            wxPGProperty* parent ) const
 417 {
 418
 419     size_t i;
 420
 421     if ( !parent ) parent = (wxPGProperty*) &m_regularArray;
 422
 423     for ( i=0; i<parent->GetChildCount(); i++ )
 424     {
 425         wxPGProperty* p = parent->Item(i);
 426         if ( p->m_label == label )
 427             return p;
 428         // Check children recursively.
 429         if ( p->GetChildCount() )
 430         {
 431             p = GetPropertyByLabel(label,(wxPGProperty*)p);
 432             if ( p )
 433                 return p;
 434         }
 435     }
 436
 437     return NULL;
 438 }
 439
 440 // -----------------------------------------------------------------------
 441
 442 wxPGProperty* wxPropertyGridPageState::BaseGetPropertyByName( const wxString& name ) const
 443 {
 444     wxPGHashMapS2P::const_iterator it;
 445     it = m_dictName.find(name);
 446     if ( it != m_dictName.end() )
 447         return (wxPGProperty*) it->second;
 448     return (wxPGProperty*) NULL;
 449 }
 450
 451 // -----------------------------------------------------------------------
 452
 453 void wxPropertyGridPageState::DoSetPropertyName( wxPGProperty* p,
 454                                                  const wxString& newName )
 455 {
 456     wxCHECK_RET( p, wxT("invalid property id") );
 457
 458     if ( p->GetBaseName().Len() ) m_dictName.erase( p->GetBaseName() );
 459     if ( newName.Len() ) m_dictName[newName] = (void*) p;
 460
 461     p->DoSetName(newName);
 462 }
 463
 464 // -----------------------------------------------------------------------
 465 // wxPropertyGridPageState global operations
 466 // -----------------------------------------------------------------------
 467
 468 // -----------------------------------------------------------------------
 469 // Item iteration macros
 470 //   NB: Nowadays only needed for alphabetic/categoric mode switching.
 471 // -----------------------------------------------------------------------
 472
 473 #define II_INVALID_I    0x00FFFFFF
 474
 475 #define ITEM_ITERATION_VARIABLES \
 476     wxPGProperty* parent; \
 477     unsigned int i; \
 478     unsigned int iMax;
 479
 480 #define ITEM_ITERATION_INIT_FROM_THE_TOP \
 481     parent = m_properties; \
 482     i = 0;
 483
 484 #define ITEM_ITERATION_INIT(startparent, startindex, state) \
 485     parent = startparent; \
 486     i = (unsigned int)startindex; \
 487     if ( parent == (wxPGProperty*) NULL ) \
 488     { \
 489         parent = state->m_properties; \
 490         i = 0; \
 491     }
 492
 493 #define ITEM_ITERATION_LOOP_BEGIN \
 494     do \
 495     { \
 496         iMax = parent->GetChildCount(); \
 497         while ( i < iMax ) \
 498         {  \
 499             wxPGProperty* p = parent->Item(i);
 500
 501 #define ITEM_ITERATION_LOOP_END \
 502             if ( p->GetChildCount() ) \
 503             { \
 504                 i = 0; \
 505                 parent = (wxPGProperty*)p; \
 506                 iMax = parent->GetChildCount(); \
 507             } \
 508             else \
 509                 i++; \
 510         } \
 511         i = parent->m_arrIndex + 1; \
 512         parent = parent->m_parent; \
 513     } \
 514     while ( parent != NULL );
 515
 516 bool wxPropertyGridPageState::EnableCategories( bool enable )
 517 {
 518     //
 519     // NB: We can't use wxPropertyGridIterator in this
 520     //     function, since it depends on m_arrIndexes,
 521     //     which, among other things, is being fixed here.
 522     //
 523     ITEM_ITERATION_VARIABLES
 524
 525     if ( enable )
 526     {
 527         //
 528         // Enable categories
 529         //
 530
 531         if ( !IsInNonCatMode() )
 532             return false;
 533
 534         m_properties = &m_regularArray;
 535
 536         // fix parents, indexes, and depths
 537         ITEM_ITERATION_INIT_FROM_THE_TOP
 538
 539         ITEM_ITERATION_LOOP_BEGIN
 540
 541             p->m_arrIndex = i;
 542
 543             p->m_parent = parent;
 544
 545             // If parent was category, and this is not,
 546             // then the depth stays the same.
 547             if ( parent->IsCategory() &&
 548                  !p->IsCategory() )
 549                 p->m_depth = parent->m_depth;
 550             else
 551                 p->m_depth = parent->m_depth + 1;
 552
 553         ITEM_ITERATION_LOOP_END
 554
 555     }
 556     else
 557     {
 558         //
 559         // Disable categories
 560         //
 561
 562         if ( IsInNonCatMode() )
 563             return false;
 564
 565         // Create array, if necessary.
 566         if ( !m_abcArray )
 567             InitNonCatMode();
 568
 569         m_properties = m_abcArray;
 570
 571         // fix parents, indexes, and depths
 572         ITEM_ITERATION_INIT_FROM_THE_TOP
 573
 574         ITEM_ITERATION_LOOP_BEGIN
 575
 576             p->m_arrIndex = i;
 577
 578             p->m_parent = parent;
 579
 580             p->m_depth = parent->m_depth + 1;
 581
 582         ITEM_ITERATION_LOOP_END
 583     }
 584
 585     VirtualHeightChanged();
 586
 587     if ( m_pPropGrid->GetState() == this )
 588         m_pPropGrid->RecalculateVirtualSize();
 589
 590     return true;
 591 }
 592
 593 // -----------------------------------------------------------------------
 594
 595 #if wxUSE_STL
 596 #include <algorithm>
 597
 598 static bool wxPG_SortFunc(wxPGProperty *p1, wxPGProperty *p2)
 599 {
 600     return p1->GetLabel() < p2->GetLabel();
 601 }
 602
 603 #else
 604
 605 static int wxPG_SortFunc(wxPGProperty **p1, wxPGProperty **p2)
 606 {
 607     wxPGProperty *pp1 = *p1;
 608     wxPGProperty *pp2 = *p2;
 609     return pp1->GetLabel().compare( pp2->GetLabel() );
 610 }
 611
 612 #endif
 613
 614 void wxPropertyGridPageState::SortChildren( wxPGProperty* p )
 615 {
 616     if ( !p )
 617         p = (wxPGProperty*)m_properties;
 618
 619     if ( !p->GetChildCount() )
 620         return;
 621
 622     wxPGProperty* pwc = (wxPGProperty*)p;
 623
 624     // Can only sort items with children
 625     if ( pwc->GetChildCount() < 1 )
 626         return;
 627
 628 #if wxUSE_STL
 629     std::sort(pwc->m_children.begin(), pwc->m_children.end(), wxPG_SortFunc);
 630 #else
 631     pwc->m_children.Sort( wxPG_SortFunc );
 632 #endif
 633
 634     // Fix indexes
 635     pwc->FixIndicesOfChildren();
 636
 637 }
 638
 639 // -----------------------------------------------------------------------
 640
 641 void wxPropertyGridPageState::Sort()
 642 {
 643     SortChildren( m_properties );
 644
 645     // Sort categories as well
 646     if ( !IsInNonCatMode() )
 647     {
 648         size_t i;
 649         for ( i=0;i<m_properties->GetChildCount();i++)
 650         {
 651             wxPGProperty* p = m_properties->Item(i);
 652             if ( p->IsCategory() )
 653                 SortChildren( p );
 654         }
 655     }
 656 }
 657
 658 // -----------------------------------------------------------------------
 659 // wxPropertyGridPageState splitter, column and hittest functions
 660 // -----------------------------------------------------------------------
 661
 662 wxPGProperty* wxPropertyGridPageState::DoGetItemAtY( int y ) const
 663 {
 664     // Outside?
 665     if ( y < 0 )
 666         return (wxPGProperty*) NULL;
 667
 668     unsigned int a = 0;
 669     return m_properties->GetItemAtY(y, GetGrid()->m_lineHeight, &a);
 670 }
 671
 672 // -----------------------------------------------------------------------
 673
 674 wxPropertyGridHitTestResult wxPropertyGridPageState::HitTest( const wxPoint&pt ) const
 675 {
 676     wxPropertyGridHitTestResult result;
 677     result.column = HitTestH( pt.x, &result.splitter, &result.splitterHitOffset );
 678     result.property = DoGetItemAtY( pt.y );
 679     return result;
 680 }
 681
 682 // -----------------------------------------------------------------------
 683
 684 // Used by SetSplitterLeft() and DotFitColumns()
 685 int wxPropertyGridPageState::GetColumnFitWidth(wxClientDC& dc,
 686                                            wxPGProperty* pwc,
 687                                            unsigned int col,
 688                                            bool subProps) const
 689 {
 690     wxPropertyGrid* pg = m_pPropGrid;
 691     size_t i;
 692     int maxW = 0;
 693     int w, h;
 694
 695     for ( i=0; i<pwc->GetChildCount(); i++ )
 696     {
 697         wxPGProperty* p = pwc->Item(i);
 698         if ( !p->IsCategory() )
 699         {
 700             dc.GetTextExtent( p->GetColumnText(col), &w, &h );
 701             if ( col == 0 )
 702                 w += ( ((int)p->m_depth-1) * pg->m_subgroup_extramargin );
 703
 704             //
 705             // TODO: Add bitmap support.
 706
 707             w += (wxPG_XBEFORETEXT*2);
 708
 709             if ( w > maxW )
 710                 maxW = w;
 711         }
 712
 713         if ( p->GetChildCount() &&
 714              ( subProps || p->IsCategory() ) )
 715         {
 716             w = GetColumnFitWidth( dc, p, col, subProps );
 717
 718             if ( w > maxW )
 719                 maxW = w;
 720         }
 721     }
 722
 723     return maxW;
 724 }
 725
 726 int wxPropertyGridPageState::DoGetSplitterPosition( int splitterColumn ) const
 727 {
 728     int n = GetGrid()->m_marginWidth;
 729     int i;
 730     for ( i=0; i<=splitterColumn; i++ )
 731         n += m_colWidths[i];
 732     return n;
 733 }
 734
 735 int wxPropertyGridPageState::GetColumnMinWidth( int WXUNUSED(column) ) const
 736 {
 737     return wxPG_DRAG_MARGIN;
 738 }
 739
 740 void wxPropertyGridPageState::PropagateColSizeDec( int column, int decrease, int dir )
 741 {
 742     int origWidth = m_colWidths[column];
 743     m_colWidths[column] -= decrease;
 744     int min = GetColumnMinWidth(column);
 745     int more = 0;
 746     if ( m_colWidths[column] < min )
 747     {
 748         more = decrease - (origWidth - min);
 749         m_colWidths[column] = min;
 750     }
 751
 752     //
 753     // FIXME: Causes erratic splitter changing, so as a workaround
 754     //        disabled if two or less columns.
 755
 756     if ( m_colWidths.size() <= 2 )
 757         return;
 758
 759     column += dir;
 760     if ( more && column < (int)m_colWidths.size() && column >= 0 )
 761         PropagateColSizeDec( column, more, dir );
 762 }
 763
 764 void wxPropertyGridPageState::DoSetSplitterPosition( int newXPos, int splitterColumn, bool WXUNUSED(allPages), bool fromAutoCenter )
 765 {
 766     wxPropertyGrid* pg = GetGrid();
 767
 768     int adjust = newXPos - DoGetSplitterPosition(splitterColumn);
 769
 770     if ( !pg->HasVirtualWidth() )
 771     {
 772         // No virtual width
 773         int otherColumn;
 774         if ( adjust > 0 )
 775         {
 776             otherColumn = splitterColumn + 1;
 777             if ( otherColumn == (int)m_colWidths.size() )
 778                 otherColumn = 0;
 779             m_colWidths[splitterColumn] += adjust;
 780             PropagateColSizeDec( otherColumn, adjust, 1 );
 781         }
 782         else
 783         {
 784             otherColumn = splitterColumn + 1;
 785             if ( otherColumn == (int)m_colWidths.size() )
 786                 otherColumn = 0;
 787             m_colWidths[otherColumn] -= adjust;
 788             PropagateColSizeDec( splitterColumn, -adjust, -1 );
 789         }
 790     }
 791     else
 792     {
 793         m_colWidths[splitterColumn] += adjust;
 794     }
 795
 796     if ( splitterColumn == 0 )
 797         m_fSplitterX = (double) newXPos;
 798
 799     if ( !fromAutoCenter )
 800     {
 801         // Don't allow initial splitter auto-positioning after this.
 802         if ( pg->GetState() == this )
 803             pg->SetInternalFlag(wxPG_FL_SPLITTER_PRE_SET);
 804
 805         CheckColumnWidths();
 806     }
 807 }
 808
 809 // Moves splitter so that all labels are visible, but just.
 810 void wxPropertyGridPageState::SetSplitterLeft( bool subProps )
 811 {
 812     wxPropertyGrid* pg = GetGrid();
 813     wxClientDC dc(pg);
 814     dc.SetFont(pg->m_font);
 815
 816     int maxW = GetColumnFitWidth(dc, m_properties, 0, subProps);
 817
 818     if ( maxW > 0 )
 819     {
 820         maxW += pg->m_marginWidth;
 821         DoSetSplitterPosition( maxW );
 822     }
 823
 824     pg->SetInternalFlag(wxPG_FL_DONT_CENTER_SPLITTER);
 825 }
 826
 827 wxSize wxPropertyGridPageState::DoFitColumns( bool WXUNUSED(allowGridResize) )
 828 {
 829     wxPropertyGrid* pg = GetGrid();
 830     wxClientDC dc(pg);
 831     dc.SetFont(pg->m_font);
 832
 833     int marginWidth = pg->m_marginWidth;
 834     int accWid = marginWidth;
 835     int maxColWidth = 500;
 836
 837     for ( unsigned int col=0; col < GetColumnCount(); col++ )
 838     {
 839         int fitWid = GetColumnFitWidth(dc, m_properties, col, true);
 840         int colMinWidth = GetColumnMinWidth(col);
 841         if ( fitWid < colMinWidth )
 842             fitWid = colMinWidth;
 843         else if ( fitWid > maxColWidth )
 844             fitWid = maxColWidth;
 845
 846         m_colWidths[col] = fitWid;
 847
 848         accWid += fitWid;
 849     }
 850
 851     // Expand last one to fill the width
 852     int remaining = m_width - accWid;
 853     m_colWidths[GetColumnCount()-1] += remaining;
 854
 855     pg->SetInternalFlag(wxPG_FL_DONT_CENTER_SPLITTER);
 856
 857     int firstSplitterX = marginWidth + m_colWidths[0];
 858     m_fSplitterX = (double) firstSplitterX;
 859
 860     // Don't allow initial splitter auto-positioning after this.
 861     if ( pg->GetState() == this )
 862     {
 863         pg->SetSplitterPosition(firstSplitterX, false);
 864         pg->Refresh();
 865     }
 866
 867     int x, y;
 868     pg->GetVirtualSize(&x, &y);
 869
 870     return wxSize(accWid, y);
 871 }
 872
 873 void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
 874 {
 875     if ( m_width == 0 )
 876         return;
 877
 878     wxPropertyGrid* pg = GetGrid();
 879
 880 #ifdef __WXDEBUG__
 881     const bool debug = false;
 882 #endif
 883
 884     unsigned int i;
 885     unsigned int lastColumn = m_colWidths.size() - 1;
 886     int width = m_width;
 887     int clientWidth = pg->GetClientSize().x;
 888
 889     //
 890     // Column to reduce, if needed. Take last one that exceeds minimum width.
 891     // Except if auto splitter centering is used, in which case use widest.
 892     int reduceCol = -1;
 893     int highestColWidth = 0;
 894
 895     bool minimizedCols = false;
 896
 897 #ifdef __WXDEBUG__
 898     if ( debug )
 899         wxLogDebug(wxT("ColumnWidthCheck (virtualWidth: %i, clientWidth: %i)"), width, clientWidth);
 900 #endif
 901
 902     //
 903     // Check min sizes
 904     for ( i=0; i<m_colWidths.size(); i++ )
 905     {
 906         int min = GetColumnMinWidth(i);
 907         if ( m_colWidths[i] <= min )
 908         {
 909             m_colWidths[i] = min;
 910             minimizedCols = true;
 911         }
 912         else
 913         {
 914             if ( pg->HasFlag(wxPG_SPLITTER_AUTO_CENTER) )
 915             {
 916                 if ( m_colWidths[i] >= highestColWidth )
 917                 {
 918                     highestColWidth = m_colWidths[i];
 919                     reduceCol = i;
 920                 }
 921             }
 922             else
 923             {
 924                 reduceCol = i;
 925             }
 926         }
 927     }
 928
 929     int colsWidth = pg->m_marginWidth;
 930     for ( i=0; i<m_colWidths.size(); i++ )
 931         colsWidth += m_colWidths[i];
 932
 933 #ifdef __WXDEBUG__
 934     if ( debug )
 935         wxLogDebug(wxT("  HasVirtualWidth: %i  colsWidth: %i"),(int)pg->HasVirtualWidth(),colsWidth);
 936 #endif
 937
 938     // Then mode-based requirement
 939     if ( !pg->HasVirtualWidth() )
 940     {
 941         int widthHigher = width - colsWidth;
 942
 943         // Adapt colsWidth to width
 944         if ( colsWidth < width )
 945         {
 946             // Increase column
 947         #ifdef __WXDEBUG__
 948         if ( debug )
 949             wxLogDebug(wxT("  Adjust last column to %i"), m_colWidths[lastColumn] + widthHigher);
 950         #endif
 951             m_colWidths[lastColumn] = m_colWidths[lastColumn] + widthHigher;
 952         }
 953         else if ( colsWidth > width )
 954         {
 955             // Reduce column
 956             if ( reduceCol != -1 )
 957             {
 958             #ifdef __WXDEBUG__
 959                 if ( debug )
 960                     wxLogDebug(wxT("  Reduce column %i (by %i)"), reduceCol, -widthHigher);
 961             #endif
 962                 // Reduce widest column, and recheck
 963                 m_colWidths[reduceCol] = m_colWidths[reduceCol] + widthHigher;
 964                 CheckColumnWidths();
 965             }
 966         }
 967     }
 968     else
 969     {
 970         // Only check colsWidth against clientWidth
 971         if ( colsWidth < clientWidth )
 972         {
 973             m_colWidths[lastColumn] = m_colWidths[lastColumn] + (clientWidth-colsWidth);
 974         }
 975
 976         m_width = colsWidth;
 977
 978         // If width changed, recalculate virtual size
 979         if ( pg->GetState() == this )
 980             pg->RecalculateVirtualSize();
 981     }
 982
 983 #ifdef __WXDEBUG__
 984     if ( debug )
 985         for ( i=0; i<m_colWidths.size(); i++ )
 986             wxLogDebug(wxT("col%i: %i"),i,m_colWidths[i]);
 987 #endif
 988
 989     // Auto center splitter
 990     if ( !(pg->GetInternalFlags() & wxPG_FL_DONT_CENTER_SPLITTER) &&
 991          m_colWidths.size() == 2 )
 992     {
 993         float centerX = (float)(pg->m_width/2);
 994         float splitterX;
 995
 996         if ( m_fSplitterX < 0.0 )
 997         {
 998             splitterX = centerX;
 999         }
1000         else if ( widthChange )
1001         {
1002             //float centerX = float(pg->GetSize().x) * 0.5;
1003
1004             // Recenter?
1005             splitterX = m_fSplitterX + (float(widthChange) * 0.5);
1006             float deviation = fabs(centerX - splitterX);
1007
1008             // If deviating from center, adjust towards it
1009             if ( deviation > 20.0 )
1010             {
1011                 if ( splitterX > centerX)
1012                     splitterX -= 2;
1013                 else
1014                     splitterX += 2;
1015             }
1016         }
1017         else
1018         {
1019             // No width change, just keep sure we keep splitter position intact
1020             splitterX = m_fSplitterX;
1021             float deviation = fabs(centerX - splitterX);
1022             if ( deviation > 50.0 )
1023             {
1024                 splitterX = centerX;
1025             }
1026         }
1027
1028         DoSetSplitterPosition((int)splitterX, 0, false, true);
1029
1030         m_fSplitterX = splitterX; // needed to retain accuracy
1031     }
1032 }
1033
1034 void wxPropertyGridPageState::SetColumnCount( int colCount )
1035 {
1036     wxASSERT( colCount >= 2 );
1037     m_colWidths.SetCount( colCount, wxPG_DRAG_MARGIN );
1038     if ( m_colWidths.size() > (unsigned int)colCount )
1039         m_colWidths.RemoveAt( m_colWidths.size(), m_colWidths.size() - colCount );
1040
1041     if ( m_pPropGrid->GetState() == this )
1042         m_pPropGrid->RecalculateVirtualSize();
1043     else
1044         CheckColumnWidths();
1045 }
1046
1047 // Returns column index, -1 for margin
1048 int wxPropertyGridPageState::HitTestH( int x, int* pSplitterHit, int* pSplitterHitOffset ) const
1049 {
1050     int cx = GetGrid()->m_marginWidth;
1051     int col = -1;
1052     int prevSplitter = -1;
1053
1054     while ( x > cx )
1055     {
1056         col++;
1057         if ( col >= (int)m_colWidths.size() )
1058         {
1059             *pSplitterHit = -1;
1060             return col;
1061         }
1062         prevSplitter = cx;
1063         cx += m_colWidths[col];
1064     }
1065
1066     // Near prev. splitter
1067     if ( col >= 1 )
1068     {
1069         int diff = x - prevSplitter;
1070         if ( abs(diff) < wxPG_SPLITTERX_DETECTMARGIN1 )
1071         {
1072             *pSplitterHit = col - 1;
1073             *pSplitterHitOffset = diff;
1074             return col;
1075         }
1076     }
1077
1078     // Near next splitter
1079     int nextSplitter = cx;
1080     if ( col < (int)(m_colWidths.size()-1) )
1081     {
1082         int diff = x - nextSplitter;
1083         if ( abs(diff) < wxPG_SPLITTERX_DETECTMARGIN1 )
1084         {
1085             *pSplitterHit = col;
1086             *pSplitterHitOffset = diff;
1087             return col;
1088         }
1089     }
1090
1091     *pSplitterHit = -1;
1092     return col;
1093 }
1094
1095 // -----------------------------------------------------------------------
1096 // wxPropertyGridPageState property value setting and getting
1097 // -----------------------------------------------------------------------
1098
1099 bool wxPropertyGridPageState::DoSetPropertyValueString( wxPGProperty* p, const wxString& value )
1100 {
1101     if ( p )
1102     {
1103         int flags = wxPG_REPORT_ERROR|wxPG_FULL_VALUE|wxPG_PROGRAMMATIC_VALUE;
1104
1105         wxVariant variant = p->GetValueRef();
1106         bool res;
1107
1108         if ( p->GetMaxLength() <= 0 )
1109             res = p->StringToValue( variant, value, flags );
1110         else
1111             res = p->StringToValue( variant, value.Mid(0,p->GetMaxLength()), flags );
1112
1113         if ( res )
1114         {
1115             p->SetValue(variant);
1116             if ( m_selected==p && this==m_pPropGrid->GetState() )
1117                 p->UpdateControl(m_pPropGrid->GetEditorControl());
1118         }
1119
1120         return true;
1121     }
1122     return false;
1123 }
1124
1125 // -----------------------------------------------------------------------
1126
1127 bool wxPropertyGridPageState::DoSetPropertyValue( wxPGProperty* p, wxVariant& value )
1128 {
1129     if ( p )
1130     {
1131         p->SetValue(value);
1132         if ( m_selected==p && this==m_pPropGrid->GetState() )
1133             p->UpdateControl(m_pPropGrid->GetEditorControl());
1134
1135         return true;
1136     }
1137     return false;
1138 }
1139
1140 // -----------------------------------------------------------------------
1141
1142 bool wxPropertyGridPageState::DoSetPropertyValueWxObjectPtr( wxPGProperty* p, wxObject* value )
1143 {
1144     if ( p )
1145     {
1146         // wnd_primary has to be given so the control can be updated as well.
1147         wxVariant v(value);
1148         DoSetPropertyValue(p, v);
1149         return true;
1150     }
1151     return false;
1152 }
1153
1154 // -----------------------------------------------------------------------
1155
1156 void wxPropertyGridPageState::DoSetPropertyValueUnspecified( wxPGProperty* p )
1157 {
1158     wxCHECK_RET( p, wxT("invalid property id") );
1159
1160     if ( !p->IsValueUnspecified() )
1161     {
1162         // Value should be set first - editor class methods may need it
1163         p->m_value.MakeNull();
1164
1165         wxASSERT( m_pPropGrid );
1166
1167         if ( m_pPropGrid->GetState() == this )
1168         {
1169             if ( m_pPropGrid->m_selected == p && m_pPropGrid->m_wndEditor )
1170             {
1171                 p->GetEditorClass()->SetValueToUnspecified(p, m_pPropGrid->GetEditorControl());
1172             }
1173         }
1174
1175         unsigned int i;
1176         for ( i = 0; i < p->GetChildCount(); i++ )
1177             DoSetPropertyValueUnspecified( p->Item(i) );
1178     }
1179 }
1180
1181 // -----------------------------------------------------------------------
1182 // wxPropertyGridPageState property operations
1183 // -----------------------------------------------------------------------
1184
1185 bool wxPropertyGridPageState::DoCollapse( wxPGProperty* p )
1186 {
1187     wxCHECK_MSG( p, false, wxT("invalid property id") );
1188
1189     if ( !p->GetChildCount() ) return false;
1190
1191     if ( !p->IsExpanded() ) return false;
1192
1193     p->SetExpanded(false);
1194
1195     VirtualHeightChanged();
1196
1197     return true;
1198 }
1199
1200 // -----------------------------------------------------------------------
1201
1202 bool wxPropertyGridPageState::DoExpand( wxPGProperty* p )
1203 {
1204     wxCHECK_MSG( p, false, wxT("invalid property id") );
1205
1206     if ( !p->GetChildCount() ) return false;
1207
1208     if ( p->IsExpanded() ) return false;
1209
1210     p->SetExpanded(true);
1211
1212     VirtualHeightChanged();
1213
1214     return true;
1215 }
1216
1217 // -----------------------------------------------------------------------
1218
1219 bool wxPropertyGridPageState::DoSelectProperty( wxPGProperty* p, unsigned int flags )
1220 {
1221     if ( this == m_pPropGrid->GetState() )
1222         return m_pPropGrid->DoSelectProperty( p, flags );
1223
1224     m_selected = p;
1225     return true;
1226 }
1227
1228 // -----------------------------------------------------------------------
1229
1230 bool wxPropertyGridPageState::DoHideProperty( wxPGProperty* p, bool hide, int flags )
1231 {
1232     if ( !hide )
1233         p->ClearFlag( wxPG_PROP_HIDDEN );
1234     else
1235         p->SetFlag( wxPG_PROP_HIDDEN );
1236
1237     if ( flags & wxPG_RECURSE )
1238     {
1239         unsigned int i;
1240         for ( i = 0; i < p->GetChildCount(); i++ )
1241             DoHideProperty(p->Item(i), hide, flags | wxPG_RECURSE_STARTS);
1242     }
1243
1244     VirtualHeightChanged();
1245
1246     return true;
1247 }
1248
1249 // -----------------------------------------------------------------------
1250
1251 bool wxPropertyGridPageState::DoEnableProperty( wxPGProperty* p, bool enable )
1252 {
1253     if ( p )
1254     {
1255         if ( enable )
1256         {
1257             if ( !(p->m_flags & wxPG_PROP_DISABLED) )
1258                 return false;
1259
1260             // Enabling
1261
1262             p->m_flags &= ~(wxPG_PROP_DISABLED);
1263         }
1264         else
1265         {
1266             if ( p->m_flags & wxPG_PROP_DISABLED )
1267                 return false;
1268
1269             // Disabling
1270
1271             p->m_flags |= wxPG_PROP_DISABLED;
1272
1273         }
1274
1275         // Apply same to sub-properties as well
1276         unsigned int i;
1277         for ( i = 0; i < p->GetChildCount(); i++ )
1278             DoEnableProperty( p->Item(i), enable );
1279
1280         return true;
1281     }
1282     return false;
1283 }
1284
1285 // -----------------------------------------------------------------------
1286 // wxPropertyGridPageState wxVariant related routines
1287 // -----------------------------------------------------------------------
1288
1289 // Returns list of wxVariant objects (non-categories and non-sub-properties only).
1290 // Never includes sub-properties (unless they are parented by wxParentProperty).
1291 wxVariant wxPropertyGridPageState::DoGetPropertyValues( const wxString& listname,
1292                                                     wxPGProperty* baseparent,
1293                                                     long flags ) const
1294 {
1295     wxPGProperty* pwc = (wxPGProperty*) baseparent;
1296
1297     // Root is the default base-parent.
1298     if ( !pwc )
1299         pwc = m_properties;
1300
1301     wxVariantList tempList;
1302     wxVariant v( tempList, listname );
1303
1304     if ( pwc->GetChildCount() )
1305     {
1306         if ( flags & wxPG_KEEP_STRUCTURE )
1307         {
1308             wxASSERT( !pwc->HasFlag(wxPG_PROP_AGGREGATE) );
1309
1310             size_t i;
1311             for ( i=0; i<pwc->GetChildCount(); i++ )
1312             {
1313                 wxPGProperty* p = pwc->Item(i);
1314                 if ( !p->GetChildCount() || p->HasFlag(wxPG_PROP_AGGREGATE) )
1315                 {
1316                     wxVariant variant = p->GetValue();
1317                     variant.SetName( p->GetBaseName() );
1318                     v.Append( variant );
1319                 }
1320                 else
1321                 {
1322                     v.Append( DoGetPropertyValues(p->m_name,p,flags|wxPG_KEEP_STRUCTURE) );
1323                 }
1324                 if ( (flags & wxPG_INC_ATTRIBUTES) && p->m_attributes.GetCount() )
1325                     v.Append( p->GetAttributesAsList() );
1326             }
1327         }
1328         else
1329         {
1330             wxPropertyGridConstIterator it( this, wxPG_ITERATE_DEFAULT, pwc->Item(0) );
1331             it.SetBaseParent( pwc );
1332
1333             for ( ; !it.AtEnd(); it.Next() )
1334             {
1335                 const wxPGProperty* p = it.GetProperty();
1336
1337                 // Use a trick to ignore wxParentProperty itself, but not its sub-properties.
1338                 if ( !p->GetChildCount() || p->HasFlag(wxPG_PROP_AGGREGATE) )
1339                 {
1340                     wxVariant variant = p->GetValue();
1341                     variant.SetName( p->GetName() );
1342                     v.Append( variant );
1343                     if ( (flags & wxPG_INC_ATTRIBUTES) && p->m_attributes.GetCount() )
1344                         v.Append( p->GetAttributesAsList() );
1345                 }
1346             }
1347         }
1348     }
1349
1350     return v;
1351 }
1352
1353 // -----------------------------------------------------------------------
1354
1355 void wxPropertyGridPageState::DoSetPropertyValues( const wxVariantList& list, wxPGProperty* defaultCategory )
1356 {
1357     unsigned char origFrozen = 1;
1358
1359     if ( m_pPropGrid->GetState() == this )
1360     {
1361         origFrozen = m_pPropGrid->m_frozen;
1362         if ( !origFrozen ) m_pPropGrid->Freeze();
1363     }
1364
1365     wxPropertyCategory* use_category = (wxPropertyCategory*)defaultCategory;
1366
1367     if ( !use_category )
1368         use_category = (wxPropertyCategory*)m_properties;
1369
1370     // Let's iterate over the list of variants.
1371     wxVariantList::const_iterator node;
1372     int numSpecialEntries = 0;
1373
1374     //
1375     // Second pass for special entries
1376     for ( node = list.begin(); node != list.end(); node++ )
1377     {
1378         wxVariant *current = (wxVariant*)*node;
1379
1380         // Make sure it is wxVariant.
1381         wxASSERT( current );
1382         wxASSERT( wxStrcmp(current->GetClassInfo()->GetClassName(),wxT("wxVariant")) == 0 );
1383
1384         const wxString& name = current->GetName();
1385         if ( name.length() > 0 )
1386         {
1387             //
1388             // '@' signified a special entry
1389             if ( name[0] == wxS('@') )
1390             {
1391                 numSpecialEntries++;
1392             }
1393             else
1394             {
1395                 wxPGProperty* foundProp = BaseGetPropertyByName(name);
1396                 if ( foundProp )
1397                 {
1398                     wxPGProperty* p = foundProp;
1399
1400                     // If it was a list, we still have to go through it.
1401                     if ( wxStrcmp(current->GetType(), wxS("list")) == 0 )
1402                     {
1403                         DoSetPropertyValues( current->GetList(),
1404                                 p->IsCategory()?p:((wxPGProperty*)NULL)
1405                             );
1406                     }
1407                     else
1408                     {
1409                 #ifdef __WXDEBUG__
1410                         if ( wxStrcmp(current->GetType(), p->GetValue().GetType()) != 0)
1411                         {
1412                             wxLogDebug(wxT("wxPropertyGridPageState::DoSetPropertyValues Warning: Setting value of property \"%s\" from variant"),
1413                                 p->GetName().c_str());
1414                         }
1415                 #endif
1416
1417                         p->SetValue(*current);
1418                     }
1419                 }
1420                 else
1421                 {
1422                     // Is it list?
1423                     if ( current->GetType() != wxS("list") )
1424                     {
1425                         // Not.
1426                     }
1427                     else
1428                     {
1429                         // Yes, it is; create a sub category and append contents there.
1430                         wxPGProperty* newCat = DoInsert(use_category,-1,new wxPropertyCategory(current->GetName(),wxPG_LABEL));
1431                         DoSetPropertyValues( current->GetList(), newCat );
1432                     }
1433                 }
1434             }
1435         }
1436     }
1437
1438     if ( numSpecialEntries )
1439     {
1440         for ( node = list.begin(); node != list.end(); node++ )
1441         {
1442             wxVariant *current = (wxVariant*)*node;
1443
1444             const wxString& name = current->GetName();
1445             if ( name.length() > 0 )
1446             {
1447                 //
1448                 // '@' signified a special entry
1449                 if ( name[0] == wxS('@') )
1450                 {
1451                     numSpecialEntries--;
1452
1453                     size_t pos2 = name.rfind(wxS('@'));
1454                     if ( pos2 > 0 && pos2 < (name.size()-1) )
1455                     {
1456                         wxString propName = name.substr(1, pos2-1);
1457                         wxString entryType = name.substr(pos2+1, wxString::npos);
1458
1459                         if ( entryType == wxS("attr") )
1460                         {
1461                             //
1462                             // List of attributes
1463                             wxPGProperty* foundProp = BaseGetPropertyByName(propName);
1464                             if ( foundProp )
1465                             {
1466                                 wxASSERT( current->GetType() == wxPG_VARIANT_TYPE_LIST );
1467
1468                                 wxVariantList& list2 = current->GetList();
1469                                 wxVariantList::const_iterator node2;
1470
1471                                 for ( node2 = list2.begin(); node2 != list2.end(); node2++ )
1472                                 {
1473                                     wxVariant *attr = (wxVariant*)*node2;
1474                                     foundProp->SetAttribute( attr->GetName(), *attr );
1475                                 }
1476                             }
1477                             else
1478                             {
1479                                 // ERROR: No such property: 'propName'
1480                             }
1481                         }
1482                     }
1483                     else
1484                     {
1485                         // ERROR: Special entry requires name of format @<propname>@<entrytype>
1486                     }
1487                 }
1488             }
1489
1490             if ( !numSpecialEntries )
1491                 break;
1492         }
1493     }
1494
1495     if ( !origFrozen )
1496     {
1497         m_pPropGrid->Thaw();
1498
1499         if ( this == m_pPropGrid->GetState() )
1500         {
1501             m_selected->UpdateControl(m_pPropGrid->GetEditorControl());
1502         }
1503     }
1504
1505 }
1506
1507 // -----------------------------------------------------------------------
1508 // wxPropertyGridPageState property adding and removal
1509 // -----------------------------------------------------------------------
1510
1511 bool wxPropertyGridPageState::PrepareToAddItem( wxPGProperty* property,
1512                                                 wxPGProperty* scheduledParent )
1513 {
1514     wxPropertyGrid* propGrid = m_pPropGrid;
1515
1516     // This will allow better behavior.
1517     if ( scheduledParent == m_properties )
1518         scheduledParent = (wxPGProperty*) NULL;
1519
1520     if ( scheduledParent && !scheduledParent->IsCategory() )
1521     {
1522         wxASSERT_MSG( property->GetBaseName().length(),
1523                       "Property's children must have unique, non-empty names within their scope" );
1524     }
1525
1526     property->m_parentState = this;
1527
1528     if ( property->IsCategory() )
1529     {
1530
1531         // Parent of a category must be either root or another category
1532         // (otherwise Bad Things might happen).
1533         wxASSERT_MSG( scheduledParent == NULL ||
1534                       scheduledParent == m_properties ||
1535                       scheduledParent->IsCategory(),
1536                  wxT("Parent of a category must be either root or another category."));
1537
1538         // If we already have category with same name, delete given property
1539         // and use it instead as most recent caption item.
1540         wxPGProperty* found_id = BaseGetPropertyByName( property->GetBaseName() );
1541         if ( found_id )
1542         {
1543             wxPropertyCategory* pwc = (wxPropertyCategory*) found_id;
1544             if ( pwc->IsCategory() ) // Must be a category.
1545             {
1546                 delete property;
1547                 m_currentCategory = pwc;
1548                 return false;
1549             }
1550         }
1551     }
1552
1553 #ifdef __WXDEBUG__
1554     // Warn for identical names in debug mode.
1555     if ( BaseGetPropertyByName(property->GetName()) &&
1556          (!scheduledParent || scheduledParent->IsCategory()) )
1557     {
1558         wxLogError(wxT("wxPropertyGrid: Warning - item with name \"%s\" already exists."),
1559             property->GetName().c_str());
1560         wxPGGlobalVars->m_warnings++;
1561     }
1562 #endif
1563
1564     // Make sure nothing is selected.
1565     if ( propGrid && propGrid->m_selected )
1566     {
1567         bool selRes = propGrid->ClearSelection();
1568         wxPG_CHECK_MSG_DBG( selRes,
1569                             true,
1570                             wxT("failed to deselect a property (editor probably had invalid value)") );
1571     }
1572
1573     // NULL parent == root parent
1574     if ( !scheduledParent )
1575         scheduledParent = DoGetRoot();
1576
1577     property->m_parent = scheduledParent;
1578
1579     property->InitAfterAdded(this, propGrid);
1580
1581     if ( property->IsCategory() )
1582     {
1583         wxPropertyCategory* pc = wxStaticCast(property, wxPropertyCategory);
1584
1585         m_currentCategory = pc;
1586
1587         // Calculate text extent for category caption
1588         if ( propGrid )
1589             pc->CalculateTextExtent(propGrid, propGrid->GetCaptionFont());
1590     }
1591
1592     return true;
1593 }
1594
1595 // -----------------------------------------------------------------------
1596
1597 wxPGProperty* wxPropertyGridPageState::DoAppend( wxPGProperty* property )
1598 {
1599     wxPropertyCategory* cur_cat = m_currentCategory;
1600     if ( property->IsCategory() )
1601         cur_cat = (wxPropertyCategory*) NULL;
1602
1603     return DoInsert( cur_cat, -1, property );
1604 }
1605
1606 // -----------------------------------------------------------------------
1607
1608 wxPGProperty* wxPropertyGridPageState::DoInsert( wxPGProperty* parent, int index, wxPGProperty* property )
1609 {
1610     if ( !parent )
1611         parent = m_properties;
1612
1613     wxCHECK_MSG( !parent->HasFlag(wxPG_PROP_AGGREGATE),
1614                  wxNullProperty,
1615                  wxT("when adding properties to fixed parents, use BeginAddChildren and EndAddChildren.") );
1616
1617     bool res = PrepareToAddItem( property, (wxPropertyCategory*)parent );
1618
1619     // PrepareToAddItem() may just decide to use use current category
1620     // instead of adding new one.
1621     if ( !res )
1622         return m_currentCategory;
1623
1624     // Note that item must be added into current mode later.
1625
1626     // If parent is wxParentProperty, just stick it in...
1627     // If parent is root (m_properties), then...
1628     //   In categoric mode: Add as last item in m_abcArray (if not category).
1629     //                      Add to given index in m_regularArray.
1630     //   In non-cat mode:   Add as last item in m_regularArray.
1631     //                      Add to given index in m_abcArray.
1632     // If parent is category, then...
1633     //   1) Add to given category in given index.
1634     //   2) Add as last item in m_abcArray.
1635
1636     if ( !parent->IsCategory() && !parent->IsRoot() )
1637     {
1638         // Parent is wxParentingProperty: Just stick it in...
1639         parent->AddChild2( property, index );
1640     }
1641     else
1642     {
1643         // Parent is Category or Root.
1644
1645         if ( m_properties == &m_regularArray )
1646         {
1647             // Categorized mode
1648
1649             // Only add non-categories to m_abcArray.
1650             if ( m_abcArray && !property->IsCategory() )
1651                 m_abcArray->AddChild2( property, -1, false );
1652
1653             // Add to current mode.
1654             parent->AddChild2( property, index );
1655
1656         }
1657         else
1658         {
1659             // Non-categorized mode.
1660
1661             if ( parent != m_properties )
1662                 // Parent is category.
1663                 parent->AddChild2( property, index, false );
1664             else
1665                 // Parent is root.
1666                 m_regularArray.AddChild2( property, -1, false );
1667
1668             // Add to current mode (no categories).
1669             if ( !property->IsCategory() )
1670                 m_abcArray->AddChild2( property, index );
1671         }
1672     }
1673
1674     // category stuff
1675     if ( property->IsCategory() )
1676     {
1677         // This is a category caption item.
1678
1679         // Last caption is not the bottom one (this info required by append)
1680         m_lastCaptionBottomnest = 0;
1681     }
1682
1683     // Only add name to hashmap if parent is root or category
1684     if ( (parent->IsCategory() || parent->IsRoot()) && property->m_name.length() )
1685         m_dictName[property->m_name] = (void*) property;
1686
1687     VirtualHeightChanged();
1688
1689     property->UpdateParentValues();
1690
1691     m_itemsAdded = 1;
1692
1693     return property;
1694 }
1695
1696 // -----------------------------------------------------------------------
1697
1698 void wxPropertyGridPageState::DoDelete( wxPGProperty* item )
1699 {
1700     wxCHECK_RET( item->GetParent(),
1701         wxT("this property was already deleted") );
1702
1703     wxCHECK_RET( item != &m_regularArray && item != m_abcArray,
1704         wxT("wxPropertyGrid: Do not attempt to remove the root item.") );
1705
1706     size_t i;
1707     unsigned int indinparent = item->GetIndexInParent();
1708
1709     wxPGProperty* pwc = (wxPGProperty*)item;
1710
1711     wxCHECK_RET( !item->GetParent()->HasFlag(wxPG_PROP_AGGREGATE),
1712         wxT("wxPropertyGrid: Do not attempt to remove sub-properties.") );
1713
1714     if ( item->IsCategory() )
1715     {
1716         // deleting a category
1717
1718         // erase category entries from the hash table
1719         for ( i=0; i<pwc->GetChildCount(); i++ )
1720         {
1721             wxPGProperty* sp = pwc->Item( i );
1722             if ( sp->GetBaseName().Len() ) m_dictName.erase(sp->GetBaseName());
1723         }
1724
1725         if ( pwc == m_currentCategory )
1726             m_currentCategory = (wxPropertyCategory*) NULL;
1727
1728         if ( m_abcArray )
1729         {
1730             // Remove children from non-categorized array.
1731             for ( i=0; i<pwc->GetChildCount(); i++ )
1732             {
1733                 wxPGProperty * p = pwc->Item( i );
1734                 wxASSERT( p != NULL );
1735                 if ( !p->IsCategory() )
1736                     m_abcArray->RemoveChild(p);
1737             }
1738
1739             if ( IsInNonCatMode() )
1740                 m_abcArray->FixIndicesOfChildren();
1741         }
1742     }
1743
1744     if ( !IsInNonCatMode() )
1745     {
1746         // categorized mode - non-categorized array
1747
1748         // Remove from non-cat array, but only if parent is in it
1749         if ( !item->IsCategory() && item->GetParent()->IsCategory() )
1750         {
1751             if ( m_abcArray )
1752                 m_abcArray->RemoveChild(item);
1753         }
1754
1755         // categorized mode - categorized array
1756         wxArrayPGProperty& parentsChildren = item->m_parent->m_children;
1757         parentsChildren.erase( parentsChildren.begin() + indinparent );
1758         item->m_parent->FixIndicesOfChildren();
1759     }
1760     else
1761     {
1762         // non-categorized mode - categorized array
1763
1764         // We need to find location of item.
1765         wxPGProperty* cat_parent = &m_regularArray;
1766         int cat_index = m_regularArray.GetChildCount();
1767         size_t i;
1768         for ( i = 0; i < m_regularArray.GetChildCount(); i++ )
1769         {
1770             wxPGProperty* p = m_regularArray.Item(i);
1771             if ( p == item ) { cat_index = i; break; }
1772             if ( p->IsCategory() )
1773             {
1774                 int subind = ((wxPGProperty*)p)->Index(item);
1775                 if ( subind != wxNOT_FOUND )
1776                 {
1777                     cat_parent = ((wxPGProperty*)p);
1778                     cat_index = subind;
1779                     break;
1780                 }
1781             }
1782         }
1783         cat_parent->m_children.erase(cat_parent->m_children.begin()+cat_index);
1784
1785         // non-categorized mode - non-categorized array
1786         if ( !item->IsCategory() )
1787         {
1788             wxASSERT( item->m_parent == m_abcArray );
1789             wxArrayPGProperty& parentsChildren = item->m_parent->m_children;
1790             parentsChildren.erase(parentsChildren.begin() + indinparent);
1791             item->m_parent->FixIndicesOfChildren(indinparent);
1792         }
1793     }
1794
1795     if ( item->GetBaseName().Len() ) m_dictName.erase(item->GetBaseName());
1796
1797     // We can actually delete it now
1798     delete item;
1799
1800     m_itemsAdded = 1; // Not a logical assignment (but required nonetheless).
1801
1802     VirtualHeightChanged();
1803 }
1804
1805 // -----------------------------------------------------------------------
1806
1807 #endif  // wxUSE_PROPGRID