src/osx/dataview_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/dataview_osx.cpp
   3 // Purpose:     wxDataViewCtrl native mac implementation
   4 // Author:
   5 // Copyright:   (c) 2009
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if (wxUSE_DATAVIEWCTRL != 0) && (!defined(wxUSE_GENERICDATAVIEWCTRL) || (wxUSE_GENERICDATAVIEWCTRL == 0))
  13
  14 #include <limits>
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/timer.h"
  18     #include "wx/settings.h"
  19     #include "wx/dcclient.h"
  20     #include "wx/icon.h"
  21 #endif
  22 #if wxOSX_USE_CARBON
  23 #include "wx/osx/carbon/dataview.h"
  24 #endif
  25
  26 #include "wx/osx/core/dataview.h"
  27 #include "wx/osx/private.h"
  28 #include "wx/renderer.h"
  29
  30 // ============================================================================
  31 // Helper functions for dataviewe implementation on OSX
  32 // ============================================================================
  33 wxString ConcatenateDataViewItemValues(wxDataViewCtrl const* dataViewCtrlPtr, wxDataViewItem const& dataViewItem)
  34 {
  35   wxString dataString; // contains the TAB concatenated data
  36
  37
  38   for (size_t i=0; i<dataViewCtrlPtr->GetColumnCount(); i++)
  39   {
  40    // variable definition:
  41     wxVariant dataValue;
  42
  43     dataViewCtrlPtr->GetModel()->GetValue(dataValue,dataViewItem,dataViewCtrlPtr->GetColumn(i)->GetModelColumn());
  44     if (i > 0)
  45       dataString << wxT('\t');
  46     dataString << dataValue.MakeString();
  47   }
  48   return dataString;
  49 }
  50
  51 // ============================================================================
  52 // wxOSXDataViewModelNotifier
  53 // ============================================================================
  54 class wxOSXDataViewModelNotifier : public wxDataViewModelNotifier
  55 {
  56 public:
  57  //
  58  // constructors / destructor
  59  //
  60   wxOSXDataViewModelNotifier(wxDataViewCtrl* initDataViewCtrlPtr);
  61
  62  //
  63  // inherited methods from wxDataViewModelNotifier
  64  //
  65   virtual bool ItemAdded   (wxDataViewItem const &parent, wxDataViewItem const &item);
  66   virtual bool ItemsAdded  (wxDataViewItem const& parent, wxDataViewItemArray const& items);
  67   virtual bool ItemChanged (wxDataViewItem const& item);
  68   virtual bool ItemsChanged(wxDataViewItemArray const& items);
  69   virtual bool ItemDeleted (wxDataViewItem const& parent, wxDataViewItem const& item);
  70   virtual bool ItemsDeleted(wxDataViewItem const& parent, wxDataViewItemArray const& items);
  71   virtual bool ValueChanged(wxDataViewItem const& item, unsigned int col);
  72   virtual bool Cleared();
  73   virtual void Resort();
  74
  75 protected:
  76  // if the dataview control can have a variable row height this method sets the dataview's control row height of
  77  // the passed item to the maximum value occupied by the item in all columns
  78   void AdjustRowHeight(wxDataViewItem const& item);
  79  // ... and the same method for a couple of items:
  80   void AdjustRowHeights(wxDataViewItemArray const& items);
  81  // adjust wxCOL_WIDTH_AUTOSIZE columns to fit the data
  82   void AdjustAutosizedColumns();
  83
  84 private:
  85   wxDataViewCtrl* m_DataViewCtrlPtr;
  86 };
  87
  88 //
  89 // constructors / destructor
  90 //
  91 wxOSXDataViewModelNotifier::wxOSXDataViewModelNotifier(wxDataViewCtrl* initDataViewCtrlPtr)
  92                            :m_DataViewCtrlPtr(initDataViewCtrlPtr)
  93 {
  94   if (initDataViewCtrlPtr == NULL)
  95     wxFAIL_MSG("Pointer to dataview control must not be NULL");
  96 }
  97
  98 bool wxOSXDataViewModelNotifier::ItemAdded(wxDataViewItem const& parent, wxDataViewItem const& item)
  99 {
 100   bool noFailureFlag;
 101
 102
 103   wxCHECK_MSG(item.IsOk(),false,"Added item is invalid.");
 104   noFailureFlag = m_DataViewCtrlPtr->GetDataViewPeer()->Add(parent,item);
 105   AdjustRowHeight(item);
 106   return noFailureFlag;
 107 }
 108
 109 bool wxOSXDataViewModelNotifier::ItemsAdded(wxDataViewItem const& parent, wxDataViewItemArray const& items)
 110 {
 111   bool noFailureFlag;
 112
 113
 114  // insert all valid items into control:
 115   noFailureFlag = m_DataViewCtrlPtr->GetDataViewPeer()->Add(parent,items);
 116  // adjust row heights:
 117   AdjustRowHeights(items);
 118  // done:
 119   return noFailureFlag;
 120 }
 121
 122 bool wxOSXDataViewModelNotifier::ItemChanged(wxDataViewItem const& item)
 123 {
 124   wxCHECK_MSG(item.IsOk(),             false,"Changed item is invalid.");
 125   wxCHECK_MSG(GetOwner() != NULL,false,"Owner not initialized.");
 126   if (m_DataViewCtrlPtr->GetDataViewPeer()->Update(GetOwner()->GetParent(item),item))
 127   {
 128    // sent the equivalent wxWidget event:
 129     wxDataViewEvent dataViewEvent(wxEVT_DATAVIEW_ITEM_VALUE_CHANGED,m_DataViewCtrlPtr->GetId());
 130
 131     dataViewEvent.SetEventObject(m_DataViewCtrlPtr);
 132     dataViewEvent.SetItem(item);
 133    // sent the equivalent wxWidget event:
 134     m_DataViewCtrlPtr->HandleWindowEvent(dataViewEvent);
 135    // row height may have to be adjusted:
 136     AdjustRowHeight(item);
 137     AdjustAutosizedColumns();
 138    // done
 139     return true;
 140   }
 141   else
 142     return false;
 143 }
 144
 145 bool wxOSXDataViewModelNotifier::ItemsChanged(wxDataViewItemArray const& items)
 146 {
 147   size_t const noOfItems = items.GetCount();
 148
 149   wxDataViewEvent dataViewEvent(wxEVT_DATAVIEW_ITEM_VALUE_CHANGED,m_DataViewCtrlPtr->GetId());
 150
 151
 152   dataViewEvent.SetEventObject(m_DataViewCtrlPtr);
 153   for (size_t indexItem=0; indexItem<noOfItems; ++indexItem)
 154     if (m_DataViewCtrlPtr->GetDataViewPeer()->Update(GetOwner()->GetParent(items[indexItem]),items[indexItem]))
 155     {
 156      // send for all changed items a wxWidget event:
 157       dataViewEvent.SetItem(items[indexItem]);
 158       m_DataViewCtrlPtr->HandleWindowEvent(dataViewEvent);
 159     }
 160     else
 161       return false;
 162  // if this location is reached all items have been updated:
 163   AdjustRowHeights(items);
 164   AdjustAutosizedColumns();
 165  // done:
 166   return true;
 167 }
 168
 169 bool wxOSXDataViewModelNotifier::ItemDeleted(wxDataViewItem const& parent, wxDataViewItem const& item)
 170 {
 171   bool noFailureFlag;
 172
 173
 174   wxCHECK_MSG(item.IsOk(),false,"To be deleted item is invalid.");
 175  // when this method is called and currently an item is being edited this item may have already been deleted in the model (the passed item and the being edited item have
 176  // not to be identical because the being edited item might be below the passed item in the hierarchy);
 177  // to prevent the control trying to ask the model to update an already deleted item the control is informed that currently a deleting process
 178  // has been started and that variables can currently not be updated even when requested by the system:
 179   m_DataViewCtrlPtr->SetDeleting(true);
 180   noFailureFlag = m_DataViewCtrlPtr->GetDataViewPeer()->Remove(parent,item);
 181  // enable automatic updating again:
 182   m_DataViewCtrlPtr->SetDeleting(false);
 183
 184   AdjustAutosizedColumns();
 185  // done:
 186   return noFailureFlag;
 187 }
 188
 189 bool wxOSXDataViewModelNotifier::ItemsDeleted(wxDataViewItem const& parent, wxDataViewItemArray const& items)
 190 {
 191   bool noFailureFlag;
 192
 193
 194  // when this method is called and currently an item is being edited this item may have already been deleted in the model (the passed item and the being edited item have
 195  // not to be identical because the being edited item might be below the passed item in the hierarchy);
 196  // to prevent the control trying to ask the model to update an already deleted item the control is informed that currently a deleting process
 197  // has been started and that variables can currently not be updated even when requested by the system:
 198   m_DataViewCtrlPtr->SetDeleting(true);
 199  // delete all specified items:
 200   noFailureFlag = m_DataViewCtrlPtr->GetDataViewPeer()->Remove(parent,items);
 201  // enable automatic updating again:
 202   m_DataViewCtrlPtr->SetDeleting(false);
 203
 204   AdjustAutosizedColumns();
 205  // done:
 206   return noFailureFlag;
 207 }
 208
 209 bool wxOSXDataViewModelNotifier::ValueChanged(wxDataViewItem const& item, unsigned int col)
 210 {
 211   wxCHECK_MSG(item.IsOk(),             false,"Passed item is invalid.");
 212   wxCHECK_MSG(GetOwner() != NULL,false,"Owner not initialized.");
 213   if (m_DataViewCtrlPtr->GetDataViewPeer()->Update(GetOwner()->GetParent(item),item))
 214   {
 215     wxDataViewEvent dataViewEvent(wxEVT_DATAVIEW_ITEM_VALUE_CHANGED,m_DataViewCtrlPtr->GetId());
 216
 217     dataViewEvent.SetEventObject(m_DataViewCtrlPtr);
 218     dataViewEvent.SetColumn(col);
 219     dataViewEvent.SetItem(item);
 220    // send the equivalent wxWidget event:
 221     m_DataViewCtrlPtr->HandleWindowEvent(dataViewEvent);
 222
 223     AdjustAutosizedColumns();
 224    // done
 225     return true;
 226   }
 227   else
 228     return false;
 229 }
 230
 231 bool wxOSXDataViewModelNotifier::Cleared()
 232 {
 233   return m_DataViewCtrlPtr->GetDataViewPeer()->Reload();
 234 }
 235
 236 void wxOSXDataViewModelNotifier::Resort()
 237 {
 238   m_DataViewCtrlPtr->GetDataViewPeer()->Resort();
 239 }
 240
 241 void wxOSXDataViewModelNotifier::AdjustRowHeight(wxDataViewItem const& item)
 242 {
 243   if ((m_DataViewCtrlPtr->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT) != 0)
 244   {
 245       wxDataViewModel *model = GetOwner();
 246
 247       int height = 20; // TODO find out standard height
 248       unsigned int num = m_DataViewCtrlPtr->GetColumnCount();
 249       unsigned int col;
 250       for (col = 0; col < num; col++)
 251       {
 252           wxDataViewColumn* column(m_DataViewCtrlPtr->GetColumnPtr(col));
 253
 254           if (!(column->IsHidden()))
 255           {
 256             wxDataViewCustomRenderer *renderer = dynamic_cast<wxDataViewCustomRenderer*>(column->GetRenderer());
 257             if (renderer)
 258             {
 259                 wxVariant value;
 260                 model->GetValue( value, item, column->GetModelColumn() );
 261                 renderer->SetValue( value );
 262                 height = wxMax( height, renderer->GetSize().y );
 263             }
 264           }
 265       }
 266       if (height > 20)
 267         m_DataViewCtrlPtr->GetDataViewPeer()->SetRowHeight(item,height);
 268   }
 269 }
 270
 271 void wxOSXDataViewModelNotifier::AdjustRowHeights(wxDataViewItemArray const& items)
 272 {
 273   if ((m_DataViewCtrlPtr->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT) != 0)
 274   {
 275       size_t const noOfItems = items.GetCount();
 276
 277       wxDataViewModel *model = GetOwner();
 278
 279       for (size_t itemIndex=0; itemIndex<noOfItems; ++itemIndex)
 280       {
 281         int height = 20; // TODO find out standard height
 282         unsigned int num = m_DataViewCtrlPtr->GetColumnCount();
 283         unsigned int col;
 284
 285         for (col = 0; col < num; col++)
 286         {
 287             wxDataViewColumn* column(m_DataViewCtrlPtr->GetColumnPtr(col));
 288
 289             if (!(column->IsHidden()))
 290             {
 291               wxDataViewCustomRenderer *renderer = dynamic_cast<wxDataViewCustomRenderer*>(column->GetRenderer());
 292               if (renderer)
 293               {
 294                   wxVariant value;
 295                   model->GetValue( value, items[itemIndex], column->GetModelColumn() );
 296                   renderer->SetValue( value );
 297                   height = wxMax( height, renderer->GetSize().y );
 298               }
 299             }
 300         }
 301         if (height > 20)
 302           m_DataViewCtrlPtr->GetDataViewPeer()->SetRowHeight(items[itemIndex],height);
 303       }
 304   }
 305 }
 306
 307 void wxOSXDataViewModelNotifier::AdjustAutosizedColumns()
 308 {
 309   unsigned count = m_DataViewCtrlPtr->GetColumnCount();
 310   for ( unsigned col = 0; col < count; col++ )
 311   {
 312       wxDataViewColumn *column = m_DataViewCtrlPtr->GetColumnPtr(col);
 313
 314       if ( column->GetWidthVariable() == wxCOL_WIDTH_AUTOSIZE )
 315         m_DataViewCtrlPtr->GetDataViewPeer()->FitColumnWidthToContent(col);
 316   }
 317 }
 318
 319 // ---------------------------------------------------------
 320 // wxDataViewCustomRenderer
 321 // The constructor, the implementation macro and environment
 322 // dependent methods can be found in the environment's
 323 // source file.
 324 // ---------------------------------------------------------
 325 wxDataViewCustomRenderer::~wxDataViewCustomRenderer()
 326 {
 327   delete m_DCPtr;
 328 }
 329
 330 wxDC* wxDataViewCustomRenderer::GetDC()
 331 {
 332   if ((m_DCPtr == NULL) && (GetOwner() != NULL) && (GetOwner()->GetOwner() != NULL))
 333     m_DCPtr = new wxClientDC(GetOwner()->GetOwner());
 334   return m_DCPtr;
 335 }
 336
 337 void wxDataViewCustomRenderer::SetDC(wxDC* newDCPtr)
 338 {
 339   delete m_DCPtr;
 340   m_DCPtr = newDCPtr;
 341 }
 342
 343 //-----------------------------------------------------------------------------
 344 // wxDataViewCtrl
 345 //-----------------------------------------------------------------------------
 346
 347 wxDataViewCtrl::~wxDataViewCtrl()
 348 {
 349   ClearColumns();
 350
 351   // Ensure that the already destructed controls is not notified about changes
 352   // in the model any more.
 353   if (m_ModelNotifier != NULL)
 354     m_ModelNotifier->GetOwner()->RemoveNotifier(m_ModelNotifier);
 355 }
 356
 357 void wxDataViewCtrl::Init()
 358 {
 359   m_CustomRendererPtr = NULL;
 360   m_Deleting          = false;
 361   m_cgContext         = NULL;
 362   m_ModelNotifier     = NULL;
 363 }
 364
 365 bool wxDataViewCtrl::Create(wxWindow *parent,
 366                             wxWindowID id,
 367                             const wxPoint& pos,
 368                             const wxSize& size,
 369                             long style,
 370                             const wxValidator& validator,
 371                             const wxString& name)
 372 {
 373   DontCreatePeer();
 374   if (!(wxControl::Create(parent,id,pos,size,style,validator,name)))
 375     return false;
 376   SetPeer(::CreateDataView(this,parent,id,pos,size,style,GetExtraStyle()));
 377
 378   MacPostControlCreate(pos,size);
 379
 380   return true;
 381 }
 382
 383 bool wxDataViewCtrl::AssociateModel(wxDataViewModel* model)
 384 {
 385   wxDataViewWidgetImpl* dataViewWidgetPtr(GetDataViewPeer());
 386
 387
 388   wxCHECK_MSG(dataViewWidgetPtr != NULL,false,"Pointer to native control must not be NULL.");
 389
 390   // We could have been associated with another model previously, break the
 391   // association in this case.
 392   if ( m_ModelNotifier )
 393       m_ModelNotifier->GetOwner()->RemoveNotifier(m_ModelNotifier);
 394
 395   if (wxDataViewCtrlBase::AssociateModel(model) && dataViewWidgetPtr->AssociateModel(model))
 396   {
 397     if (model != NULL)
 398     {
 399       m_ModelNotifier = new wxOSXDataViewModelNotifier(this);
 400       model->AddNotifier(m_ModelNotifier);
 401     }
 402     return true;
 403   }
 404   else
 405     return false;
 406 }
 407
 408 bool wxDataViewCtrl::AppendColumn(wxDataViewColumn* columnPtr)
 409 {
 410    return wxDataViewCtrl::InsertColumn( GetColumnCount(), columnPtr );
 411 }
 412
 413 bool wxDataViewCtrl::PrependColumn(wxDataViewColumn* columnPtr)
 414 {
 415    return wxDataViewCtrl::InsertColumn( 0, columnPtr );
 416 }
 417
 418 bool wxDataViewCtrl::InsertColumn(unsigned int pos, wxDataViewColumn* columnPtr)
 419 {
 420   wxDataViewWidgetImpl* dataViewWidgetPtr(GetDataViewPeer());
 421
 422  // first, some error checking:
 423   wxCHECK_MSG(dataViewWidgetPtr != NULL,                                         false,"Pointer to native control must not be NULL.");
 424   wxCHECK_MSG(columnPtr != NULL,                                                 false,"Column pointer must not be NULL.");
 425   wxCHECK_MSG(columnPtr->GetRenderer() != NULL,                                  false,"Column does not have a renderer.");
 426   wxCHECK_MSG(GetModel() != NULL,                                          false,"No model associated with control.");
 427   wxCHECK_MSG(columnPtr->GetModelColumn() < GetModel()->GetColumnCount(),false,"Column's model column has no equivalent in the associated model.");
 428
 429  // add column to wxWidget's internal structure:
 430   if (wxDataViewCtrlBase::InsertColumn(pos,columnPtr))
 431   {
 432     m_ColumnPtrs.Add(columnPtr);
 433    // if the insertion in the native control is successful the rest can also be initialized:
 434     if (dataViewWidgetPtr->InsertColumn(pos,columnPtr))
 435     {
 436      // make sure that the data is up-to-date...
 437      // if the newly appended column is the first column add the initial data to the control and mark the column as an expander column,
 438      // otherwise ask the control to 'update' the data in the newly appended column:
 439       if (GetColumnCount() == 1)
 440         SetExpanderColumn(columnPtr);
 441      // done:
 442       return true;
 443     }
 444     else
 445     {
 446      // clean-up:
 447       m_ColumnPtrs.Remove(columnPtr);
 448       delete columnPtr;
 449      // and send a message in debug mode:
 450       wxFAIL_MSG("Column could not be added to native control.");
 451      // failed:
 452       return false;
 453     }
 454   }
 455   else
 456   {
 457    // clean-up:
 458     delete columnPtr;
 459     wxFAIL_MSG("Could not add column to internal structures.");
 460    // failed:
 461     return false;
 462   }
 463 }
 464
 465 bool wxDataViewCtrl::ClearColumns()
 466 {
 467   if (GetDataViewPeer()->ClearColumns())
 468   {
 469     WX_CLEAR_ARRAY(m_ColumnPtrs);
 470     return true;
 471   }
 472   else
 473     return false;
 474 }
 475
 476 bool wxDataViewCtrl::DeleteColumn(wxDataViewColumn* columnPtr)
 477 {
 478   if (GetDataViewPeer()->DeleteColumn(columnPtr))
 479   {
 480     m_ColumnPtrs.Remove(columnPtr);
 481     delete columnPtr;
 482     return true;
 483   }
 484   else
 485     return false;
 486 }
 487
 488 wxDataViewColumn* wxDataViewCtrl::GetColumn(unsigned int pos) const
 489 {
 490   return GetDataViewPeer()->GetColumn(pos);
 491 }
 492
 493 unsigned int wxDataViewCtrl::GetColumnCount() const
 494 {
 495   return m_ColumnPtrs.GetCount();
 496 }
 497
 498 int wxDataViewCtrl::GetColumnPosition(wxDataViewColumn const* columnPtr) const
 499 {
 500   return GetDataViewPeer()->GetColumnPosition(columnPtr);
 501 }
 502
 503 void wxDataViewCtrl::Collapse(wxDataViewItem const& item)
 504 {
 505   GetDataViewPeer()->Collapse(item);
 506 }
 507
 508 void wxDataViewCtrl::EnsureVisible(wxDataViewItem const& item, wxDataViewColumn const* columnPtr)
 509 {
 510   if (item.IsOk())
 511   {
 512     ExpandAncestors(item); // make sure that the item exists in the control
 513     GetDataViewPeer()->EnsureVisible(item,columnPtr);
 514   }
 515 }
 516
 517 void wxDataViewCtrl::Expand(wxDataViewItem const& item)
 518 {
 519   return GetDataViewPeer()->Expand(item);
 520 }
 521
 522 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
 523 {
 524   return (item.IsOk() && GetDataViewPeer()->IsExpanded(item));
 525 }
 526
 527 wxDataViewColumn* wxDataViewCtrl::GetSortingColumn() const
 528 {
 529   return GetDataViewPeer()->GetSortingColumn();
 530 }
 531
 532 unsigned int wxDataViewCtrl::GetCount() const
 533 {
 534   return GetDataViewPeer()->GetCount();
 535 }
 536
 537 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
 538 {
 539     return GetDataViewPeer()->GetCurrentItem();
 540 }
 541
 542 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
 543 {
 544     GetDataViewPeer()->SetCurrentItem(item);
 545 }
 546
 547 wxDataViewColumn *wxDataViewCtrl::GetCurrentColumn() const
 548 {
 549     return GetDataViewPeer()->GetCurrentColumn();
 550 }
 551
 552 wxRect wxDataViewCtrl::GetItemRect(wxDataViewItem const& item, wxDataViewColumn const* columnPtr) const
 553 {
 554   if (item.IsOk() && (columnPtr != NULL))
 555     return GetDataViewPeer()->GetRectangle(item,columnPtr);
 556   else
 557     return wxRect();
 558 }
 559
 560 int wxDataViewCtrl::GetSelectedItemsCount() const
 561 {
 562   return GetDataViewPeer()->GetSelectedItemsCount();
 563 }
 564
 565 int wxDataViewCtrl::GetSelections(wxDataViewItemArray& sel) const
 566 {
 567   return GetDataViewPeer()->GetSelections(sel);
 568 }
 569
 570 void wxDataViewCtrl::HitTest(wxPoint const& point, wxDataViewItem& item, wxDataViewColumn*& columnPtr) const
 571 {
 572   return GetDataViewPeer()->HitTest(point,item,columnPtr);
 573 }
 574
 575 bool wxDataViewCtrl::IsSelected(wxDataViewItem const& item) const
 576 {
 577   return GetDataViewPeer()->IsSelected(item);
 578 }
 579
 580 void wxDataViewCtrl::Select(wxDataViewItem const& item)
 581 {
 582   if (item.IsOk())
 583   {
 584     ExpandAncestors(item); // make sure that the item exists in the control
 585     GetDataViewPeer()->Select(item);
 586   }
 587 }
 588
 589 void wxDataViewCtrl::SelectAll()
 590 {
 591   GetDataViewPeer()->SelectAll();
 592 }
 593
 594 void wxDataViewCtrl::SetSelections(wxDataViewItemArray const& sel)
 595 {
 596     size_t const noOfSelections = sel.GetCount();
 597
 598     size_t i;
 599
 600     wxDataViewItem last_parent;
 601
 602
 603    // make sure that all to be selected items are visible in the control:
 604     for (i = 0; i < noOfSelections; i++)
 605     {
 606         wxDataViewItem item   = sel[i];
 607         wxDataViewItem parent = GetModel()->GetParent( item );
 608
 609         if (parent.IsOk() && (parent != last_parent))
 610           ExpandAncestors(item);
 611         last_parent = parent;
 612     }
 613
 614    // finally select the items:
 615     wxDataViewWidgetImpl* dataViewWidgetPtr(GetDataViewPeer()); // variable definition for abbreviational purposes
 616
 617     for (i=0; i<noOfSelections; ++i)
 618       dataViewWidgetPtr->Select(sel[i]);
 619 }
 620
 621 void wxDataViewCtrl::Unselect(wxDataViewItem const& item)
 622 {
 623   if (item.IsOk())
 624     GetDataViewPeer()->Unselect(item);
 625 }
 626
 627 void wxDataViewCtrl::UnselectAll()
 628 {
 629   GetDataViewPeer()->UnselectAll();
 630 }
 631
 632 //
 633 // implementation
 634 //
 635 wxDataViewWidgetImpl* wxDataViewCtrl::GetDataViewPeer() const
 636 {
 637   return dynamic_cast<wxDataViewWidgetImpl*>(GetPeer());
 638 }
 639
 640 void wxDataViewCtrl::AddChildren(wxDataViewItem const& parentItem)
 641 {
 642   int noOfChildren;
 643
 644   wxDataViewItemArray items;
 645
 646
 647   wxCHECK_RET(GetModel() != NULL,"Model pointer not initialized.");
 648   noOfChildren = GetModel()->GetChildren(parentItem,items);
 649   (void) GetModel()->ItemsAdded(parentItem,items);
 650 }
 651
 652 void wxDataViewCtrl::EditItem(const wxDataViewItem& item, const wxDataViewColumn *column)
 653 {
 654     GetDataViewPeer()->StartEditor(item, GetColumnPosition(column));
 655 }
 656
 657 void wxDataViewCtrl::FinishCustomItemEditing()
 658 {
 659   if (GetCustomRendererItem().IsOk())
 660   {
 661     GetCustomRendererPtr()->FinishEditing();
 662     SetCustomRendererItem(wxDataViewItem());
 663     SetCustomRendererPtr (NULL);
 664   }
 665 }
 666
 667 /*static*/
 668 wxVisualAttributes
 669 wxDataViewCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 670 {
 671     wxVisualAttributes attr;
 672
 673     attr.colFg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
 674     attr.colBg = wxSystemSettings::GetColour( wxSYS_COLOUR_LISTBOX );
 675     static wxFont font = wxFont(wxOSX_SYSTEM_FONT_VIEWS);
 676     attr.font = font;
 677
 678     return attr;
 679 }
 680
 681 // inherited methods from wxDataViewCtrlBase
 682 void wxDataViewCtrl::DoSetExpanderColumn()
 683 {
 684   if (GetExpanderColumn() != NULL)
 685     GetDataViewPeer()->DoSetExpanderColumn(GetExpanderColumn());
 686 }
 687
 688 void wxDataViewCtrl::DoSetIndent()
 689 {
 690   GetDataViewPeer()->DoSetIndent(GetIndent());
 691 }
 692
 693 // event handling:
 694 void wxDataViewCtrl::OnSize(wxSizeEvent& event)
 695 {
 696   unsigned int const noOfColumns = GetColumnCount();
 697
 698
 699  // reset DC of all custom renderers because DC has changed:
 700   for (unsigned int i=0; i<noOfColumns; ++i)
 701   {
 702     wxDataViewColumn* dataViewColumnPtr(GetColumn(i));
 703
 704     if (dataViewColumnPtr != NULL)
 705     {
 706       wxDataViewCustomRenderer* dataViewCustomRendererPtr(dynamic_cast<wxDataViewCustomRenderer*>(dataViewColumnPtr->GetRenderer()));
 707
 708       if (dataViewCustomRendererPtr != NULL)
 709         dataViewCustomRendererPtr->SetDC(NULL);
 710     }
 711   }
 712
 713  // update the layout of the native control after a size event:
 714   GetDataViewPeer()->OnSize();
 715
 716   event.Skip();
 717 }
 718
 719 wxSize wxDataViewCtrl::DoGetBestSize() const
 720 {
 721     wxSize best = wxControl::DoGetBestSize();
 722     best.y = 80;
 723
 724     return best;
 725 }
 726
 727 void wxDataViewCtrl::OnMouse(wxMouseEvent& event)
 728 {
 729     event.Skip();
 730
 731 #if wxOSX_USE_CARBON
 732     if (GetModel() == NULL)
 733         return;
 734
 735     wxMacDataViewDataBrowserListViewControlPointer MacDataViewListCtrlPtr(dynamic_cast<wxMacDataViewDataBrowserListViewControlPointer>(GetPeer()));
 736
 737     int NoOfChildren;
 738     wxDataViewItemArray items;
 739     NoOfChildren = GetModel()->GetChildren( wxDataViewItem(), items);
 740     if (NoOfChildren == 0)
 741        return;
 742     wxDataViewItem firstChild = items[0];
 743
 744     UInt16 headerHeight = 0;
 745     MacDataViewListCtrlPtr->GetHeaderButtonHeight(&headerHeight);
 746
 747
 748     if (event.GetY() < headerHeight)
 749     {
 750        unsigned int col_count = GetColumnCount();
 751        unsigned int col;
 752        for (col = 0; col < col_count; col++)
 753        {
 754            wxDataViewColumn *column = GetColumn( col );
 755            if (column->IsHidden())
 756               continue;
 757
 758            Rect itemrect;
 759            ::GetDataBrowserItemPartBounds( MacDataViewListCtrlPtr->GetControlRef(),
 760               reinterpret_cast<DataBrowserItemID>(firstChild.GetID()), column->GetNativeData()->GetPropertyID(),
 761               kDataBrowserPropertyEnclosingPart, &itemrect );
 762
 763            if (abs( event.GetX() - itemrect.right) < 3)
 764            {
 765                if (column->GetFlags() & wxDATAVIEW_COL_RESIZABLE)
 766                   SetCursor( wxCursor( wxCURSOR_SIZEWE ) );
 767                else
 768                   SetCursor( *wxSTANDARD_CURSOR );
 769                return;
 770            }
 771        }
 772
 773     }
 774     SetCursor( *wxSTANDARD_CURSOR );
 775 #endif
 776 }
 777
 778 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl,wxDataViewCtrlBase)
 779
 780 BEGIN_EVENT_TABLE(wxDataViewCtrl,wxDataViewCtrlBase)
 781   EVT_SIZE(wxDataViewCtrl::OnSize)
 782   EVT_MOTION(wxDataViewCtrl::OnMouse)
 783 END_EVENT_TABLE()
 784
 785 #endif // (wxUSE_DATAVIEWCTRL != 0) && (!defined(wxUSE_GENERICDATAVIEWCTRL) || (wxUSE_GENERICDATAVIEWCTRL == 0))
 786