src/generic/gridsel.cpp

   1 ///////////////////////////////////////////////////////////////////////////
   2 // Name:        generic/gridsel.cpp
   3 // Purpose:     wxGridSelection
   4 // Author:      Stefan Neis
   5 // Modified by:
   6 // Created:     20/02/1999
   7 // RCS-ID:      $$
   8 // Copyright:   (c) Stefan Neis (Stefan.Neis@t-online.de)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "gridsel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx/wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #include "wx/defs.h"
  28
  29 #ifdef __BORLANDC__
  30     #pragma hdrstop
  31 #endif
  32
  33 #if defined(wxUSE_NEW_GRID) && (wxUSE_NEW_GRID)
  34
  35 #include "wx/generic/gridsel.h"
  36
  37 // Some explanation for the members of the class:
  38 // m_cellSelection stores individual selected cells
  39 //   -- this is only used if m_selectionMode == wxGridSelectCells
  40 // m_blockSelectionTopLeft and m_blockSelectionBottomRight
  41 //   store the upper left and lower right corner of selected Blocks
  42 // m_rowSelection and m_colSelection store individual selected
  43 //   rows and columns; maybe those are superfluous and should be
  44 //   treated as blocks?
  45
  46 wxGridSelection::wxGridSelection( wxGrid * grid,
  47                                   wxGrid::wxGridSelectionModes sel )
  48 {
  49     m_grid = grid;
  50     m_selectionMode = sel;
  51 }
  52
  53 bool wxGridSelection::IsSelection()
  54 {
  55   return ( m_cellSelection.GetCount() || m_blockSelectionTopLeft.GetCount() ||
  56            m_rowSelection.GetCount() || m_colSelection.GetCount() );
  57 }
  58
  59 bool wxGridSelection::IsInSelection ( int row, int col )
  60 {
  61     size_t count;
  62
  63     // First check whether the given cell is individually selected
  64     // (if m_selectionMode is wxGridSelectCells).
  65     if ( m_selectionMode == wxGrid::wxGridSelectCells )
  66     {
  67         count = m_cellSelection.GetCount();
  68         for ( size_t n = 0; n < count; n++ )
  69         {
  70             wxGridCellCoords& coords = m_cellSelection[n];
  71             if ( row == coords.GetRow() && col == coords.GetCol() )
  72                 return true;
  73         }
  74     }
  75
  76     // Now check whether the given cell is
  77     // contained in one of the selected blocks.
  78     count = m_blockSelectionTopLeft.GetCount();
  79     for ( size_t n = 0; n < count; n++ )
  80     {
  81         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
  82         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
  83         if ( BlockContainsCell(coords1.GetRow(), coords1.GetCol(),
  84                                coords2.GetRow(), coords2.GetCol(),
  85                                row, col ) )
  86             return true;
  87     }
  88
  89     // Now check whether the given cell is
  90     // contained in one of the selected rows
  91     // (unless we are in column selection mode).
  92     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
  93     {
  94         size_t count = m_rowSelection.GetCount();
  95         for ( size_t n = 0; n < count; n++ )
  96         {
  97             if ( row == m_rowSelection[n] )
  98               return true;
  99         }
 100     }
 101
 102     // Now check whether the given cell is
 103     // contained in one of the selected columns
 104     // (unless we are in row selection mode).
 105     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 106     {
 107         size_t count = m_colSelection.GetCount();
 108         for ( size_t n = 0; n < count; n++ )
 109         {
 110             if ( col == m_colSelection[n] )
 111               return true;
 112         }
 113     }
 114     return false;
 115 }
 116
 117 // Change the selection mode
 118 void wxGridSelection::SetSelectionMode(wxGrid::wxGridSelectionModes selmode)
 119 {
 120     // if selection mode is unchanged return immediately
 121     if (selmode == m_selectionMode)
 122         return;
 123
 124     if ( m_selectionMode != wxGrid::wxGridSelectCells )
 125     {
 126         // if changing form row to column selection
 127         // or vice versa, clear the selection.
 128         if ( selmode != wxGrid::wxGridSelectCells )
 129             ClearSelection();
 130
 131         m_selectionMode = selmode;
 132     }
 133     else
 134     {
 135         // if changing from cell selection to something else,
 136         // promote selected cells/blocks to whole rows/columns.
 137         size_t n;
 138         while ( ( n = m_cellSelection.GetCount() ) > 0 )
 139         {
 140             n--;
 141             wxGridCellCoords& coords = m_cellSelection[n];
 142             int row = coords.GetRow();
 143             int col = coords.GetCol();
 144             m_cellSelection.RemoveAt(n);
 145             if (selmode == wxGrid::wxGridSelectRows)
 146                 SelectRow( row );
 147             else // selmode == wxGridSelectColumns)
 148                 SelectCol( col );
 149         }
 150
 151         for (n = 0; n < m_blockSelectionTopLeft.GetCount(); n++)
 152         // Note that m_blockSelectionTopLeft's size may be changing!
 153         {
 154             wxGridCellCoords& coords = m_blockSelectionTopLeft[n];
 155             int topRow = coords.GetRow();
 156             int leftCol = coords.GetCol();
 157             coords = m_blockSelectionBottomRight[n];
 158             int bottomRow = coords.GetRow();
 159             int rightCol = coords.GetCol();
 160             if (selmode == wxGrid::wxGridSelectRows)
 161             {
 162                 if (leftCol != 0 || rightCol != m_grid->GetNumberCols() - 1 )
 163                 {
 164                     m_blockSelectionTopLeft.RemoveAt(n);
 165                     m_blockSelectionBottomRight.RemoveAt(n);
 166                     SelectBlock( topRow, 0,
 167                                  bottomRow, m_grid->GetNumberCols() - 1 );
 168                 }
 169             }
 170             else // selmode == wxGridSelectColumns)
 171             {
 172                 if (topRow != 0 || bottomRow != m_grid->GetNumberRows() - 1 )
 173                 {
 174                     m_blockSelectionTopLeft.RemoveAt(n);
 175                     m_blockSelectionBottomRight.RemoveAt(n);
 176                     SelectBlock( 0, leftCol,
 177                                  m_grid->GetNumberRows() - 1, rightCol );
 178                 }
 179             }
 180         }
 181         m_selectionMode = selmode;
 182     }
 183 }
 184
 185 void wxGridSelection::SelectRow( int row, bool addToSelected )
 186 {
 187     if ( m_selectionMode == wxGrid::wxGridSelectColumns )
 188         return;
 189     size_t count, n;
 190
 191     // Remove single cells contained in newly selected block.
 192     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 193     {
 194         count = m_cellSelection.GetCount();
 195         for ( n = 0; n < count; n++ )
 196         {
 197             wxGridCellCoords& coords = m_cellSelection[n];
 198             if ( BlockContainsCell( row, 0, row, m_grid->GetNumberCols() - 1,
 199                                     coords.GetRow(), coords.GetCol() ) )
 200             {
 201                 m_cellSelection.RemoveAt(n);
 202                 n--; count--;
 203             }
 204         }
 205     }
 206
 207     // Simplify list of selected blocks (if possible)
 208     count = m_blockSelectionTopLeft.GetCount();
 209     bool done = false;
 210     for ( n = 0; n < count; n++ )
 211     {
 212         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 213         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 214
 215         // Remove block if it is a subset of the row
 216         if ( coords1.GetRow() == row && row == coords2.GetRow() )
 217         {
 218             m_blockSelectionTopLeft.RemoveAt(n);
 219             m_blockSelectionBottomRight.RemoveAt(n);
 220             n--; count--;
 221         }
 222         else if ( coords1.GetCol() == 0  &&
 223                   coords2.GetCol() == m_grid->GetNumberCols() - 1 )
 224         {
 225             // silently return, if row is contained in block
 226             if ( coords1.GetRow() <= row && row <= coords2.GetRow() )
 227                 return;
 228             // expand block, if it touched row
 229             else if ( coords1.GetRow() == row + 1)
 230             {
 231                 coords1.SetRow(row);
 232                 done = true;
 233             }
 234             else if ( coords2.GetRow() == row - 1)
 235             {
 236                 coords2.SetRow(row);
 237                 done = true;
 238             }
 239         }
 240     }
 241
 242     // Unless we successfully handled the row,
 243     // check whether row is already selected.
 244     if ( !done )
 245     {
 246         count = m_rowSelection.GetCount();
 247         for ( n = 0; n < count; n++ )
 248         {
 249             if ( row == m_rowSelection[n] )
 250                 return;
 251         }
 252
 253         // Add row to selection
 254         m_rowSelection.Add(row);
 255     }
 256
 257     // Update View:
 258     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ),
 259                                           wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) );
 260     if ( !m_grid->GetBatchCount() )
 261         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 262
 263     // Possibly send event here? This would imply that no event is sent,
 264     // if the row already was part of the selection.
 265 }
 266
 267 void wxGridSelection::SelectCol( int col, bool addToSelected )
 268 {
 269     if ( m_selectionMode == wxGrid::wxGridSelectRows )
 270         return;
 271     size_t count, n;
 272
 273     // Remove single cells contained in newly selected block.
 274     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 275     {
 276         count = m_cellSelection.GetCount();
 277         for ( n = 0; n < count; n++ )
 278         {
 279             wxGridCellCoords& coords = m_cellSelection[n];
 280             if ( BlockContainsCell( 0, col, m_grid->GetNumberRows() - 1, col,
 281                                     coords.GetRow(), coords.GetCol() ) )
 282             {
 283                 m_cellSelection.RemoveAt(n);
 284                 n--; count--;
 285             }
 286         }
 287     }
 288
 289     // Simplify list of selected blocks (if possible)
 290     count = m_blockSelectionTopLeft.GetCount();
 291     bool done = false;
 292     for ( n = 0; n < count; n++ )
 293     {
 294         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 295         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 296
 297         // Remove block if it is a subset of the column
 298         if ( coords1.GetCol() == col && col == coords2.GetCol() )
 299         {
 300             m_blockSelectionTopLeft.RemoveAt(n);
 301             m_blockSelectionBottomRight.RemoveAt(n);
 302             n--; count--;
 303         }
 304         else if ( coords1.GetRow() == 0  &&
 305                   coords2.GetRow() == m_grid->GetNumberRows() - 1 )
 306         {
 307             // silently return, if row is contained in block
 308             if ( coords1.GetCol() <= col && col <= coords2.GetCol() )
 309                 return;
 310             // expand block, if it touched col
 311             else if ( coords1.GetCol() == col + 1)
 312             {
 313                 coords1.SetCol(col);
 314                 done = true;
 315             }
 316             else if ( coords2.GetCol() == col - 1)
 317             {
 318                 coords2.SetCol(col);
 319                 done = true;
 320             }
 321         }
 322     }
 323
 324     // Unless we successfully handled the column,
 325     // Check whether col is already selected.
 326     if ( !done )
 327     {
 328         count = m_colSelection.GetCount();
 329         for ( n = 0; n < count; n++ )
 330         {
 331             if ( col == m_colSelection[n] )
 332                 return;
 333         }
 334
 335         // Add col to selection
 336         m_colSelection.Add(col);
 337     }
 338
 339     // Update View:
 340     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ),
 341                                           wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) );
 342     if ( !m_grid->GetBatchCount() )
 343         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 344
 345     // Possibly send event here? This would imply that no event is sent,
 346     // if the row already was part of the selection.
 347 }
 348
 349 void wxGridSelection::SelectBlock( int topRow, int leftCol, int bottomRow, int rightCol )
 350 {
 351     // Fix the coordinates of the block if potentially needed
 352     if ( m_selectionMode == wxGrid::wxGridSelectRows )
 353     {
 354         leftCol = 0;
 355         rightCol = m_grid->GetNumberCols() - 1;
 356     }
 357     else if ( m_selectionMode == wxGrid::wxGridSelectColumns )
 358     {
 359         topRow = 0;
 360         bottomRow = m_grid->GetNumberRows() - 1;
 361     }
 362
 363     // Handle single cell selection in SelectCell.
 364     if ( topRow == bottomRow && leftCol == rightCol )
 365         SelectCell( topRow, leftCol );
 366
 367     size_t count, n;
 368     // Remove single cells contained in newly selected block.
 369     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 370     {
 371         count = m_cellSelection.GetCount();
 372         for ( n = 0; n < count; n++ )
 373         {
 374             wxGridCellCoords& coords = m_cellSelection[n];
 375             if ( BlockContainsCell( topRow, leftCol, bottomRow, rightCol,
 376                                     coords.GetRow(), coords.GetCol() ) )
 377             {
 378                 m_cellSelection.RemoveAt(n);
 379                 n--; count--;
 380             }
 381         }
 382     }
 383
 384     // If a block containing the selection is already selected, return,
 385     // if a block contained in the selection is found, remove it.
 386
 387     count = m_blockSelectionTopLeft.GetCount();
 388     for ( n = 0; n < count; n++ )
 389     {
 390         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 391         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 392         switch ( BlockContain( coords1.GetRow(), coords1.GetCol(),
 393                                coords2.GetRow(), coords2.GetCol(),
 394                                topRow, leftCol, bottomRow, rightCol ) )
 395         {
 396           case 1:
 397             return;
 398           case -1:
 399             m_blockSelectionTopLeft.RemoveAt(n);
 400             m_blockSelectionBottomRight.RemoveAt(n);
 401             n--; count--;
 402           default:
 403             ;
 404         }
 405     }
 406
 407     // If a row containing the selection is already selected, return,
 408     // if a row contained in newly selected block is found, remove it.
 409     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 410     {
 411         count = m_rowSelection.GetCount();
 412         for ( n = 0; n < count; n++ )
 413         {
 414             switch ( BlockContain( m_rowSelection[n], 0,
 415                                    m_rowSelection[n], m_grid->GetNumberCols()-1,
 416                                    topRow, leftCol, bottomRow, rightCol ) )
 417             {
 418               case 1:
 419                 return;
 420               case -1:
 421                 m_rowSelection.RemoveAt(n);
 422                 n--; count--;
 423               default:
 424                 ;
 425             }
 426         }
 427     }
 428     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 429     {
 430         count = m_colSelection.GetCount();
 431         for ( n = 0; n < count; n++ )
 432         {
 433             switch ( BlockContain( 0, m_colSelection[n],
 434                                    m_grid->GetNumberRows()-1, m_colSelection[n],
 435                                    topRow, leftCol, bottomRow, rightCol ) )
 436             {
 437               case 1:
 438                 return;
 439               case -1:
 440                 m_colSelection.RemoveAt(n);
 441                 n--; count--;
 442               default:
 443                 ;
 444             }
 445         }
 446     }
 447     m_blockSelectionTopLeft.Add( wxGridCellCoords( topRow, leftCol ) );
 448     m_blockSelectionBottomRight.Add( wxGridCellCoords( bottomRow, rightCol ) );
 449
 450     // Update View:
 451     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( topRow, leftCol ),
 452                                           wxGridCellCoords( bottomRow, rightCol ) );
 453     if ( !m_grid->GetBatchCount() )
 454         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 455
 456     // Possibly send event?
 457 }
 458
 459 void wxGridSelection::SelectCell( int row, int col)
 460 {
 461     if ( m_selectionMode == wxGrid::wxGridSelectRows )
 462     {
 463         SelectBlock(row, 0, row, m_grid->GetNumberCols() - 1 );
 464         return;
 465     }
 466     else if ( m_selectionMode == wxGrid::wxGridSelectColumns )
 467     {
 468         SelectBlock(0, col, m_grid->GetNumberRows() - 1, col );
 469         return;
 470     }
 471     else if ( IsInSelection ( row, col ) )
 472         return;
 473     m_cellSelection.Add( wxGridCellCoords( row, col ) );
 474
 475     // Update View:
 476     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, col ),
 477                                           wxGridCellCoords( row, col ) );
 478     if ( !m_grid->GetBatchCount() )
 479         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 480
 481     // Possibly send event?
 482 }
 483
 484 void wxGridSelection::ToggleCellSelection( int row, int col)
 485 {
 486     // if the cell is not selected, select it
 487     if ( !IsInSelection ( row, col ) )
 488     {
 489         SelectCell( row, col );
 490         return;
 491     }
 492
 493     // otherwise deselect it. This can be simple or more or
 494     // less difficult, depending on how the cell is selected.
 495     size_t count, n;
 496
 497     // The simplest case: The cell is contained in m_cellSelection
 498     // Then it can't be contained in rows/cols/block (since those
 499     // would remove the cell from m_cellSelection on creation), so
 500     // we just have to remove it from m_cellSelection.
 501
 502     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 503     {
 504         count = m_cellSelection.GetCount();
 505         for ( n = 0; n < count; n++ )
 506         {
 507             wxGridCellCoords& coords = m_cellSelection[n];
 508             if ( row == coords.GetRow() && col == coords.GetCol() )
 509             {
 510                 wxRect r;
 511                 r = m_grid->BlockToDeviceRect( m_cellSelection[n],
 512                                                m_cellSelection[n] );
 513                 m_cellSelection.RemoveAt(n);
 514                 n--; count--;
 515                 if ( !m_grid->GetBatchCount() )
 516                     ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 517                 return;
 518             }
 519         }
 520     }
 521
 522     // The most difficult case: The cell is member of one or even several
 523     // blocks. Split each such block in up to 4 new parts, that don't
 524     // contain the cell to be selected, like this:
 525     // |---------------------------|
 526     // |                           |
 527     // |           part 1          |
 528     // |                           |
 529     // |---------------------------|
 530     // |   part 3   |x|   part 4   |
 531     // |---------------------------|
 532     // |                           |
 533     // |           part 2          |
 534     // |                           |
 535     // |---------------------------|
 536     //   (The x marks the newly deselected cell).
 537     // Note: in row selection mode, we only need part1 and part2;
 538     //       in column selection mode, we only need part 3 and part4,
 539     //          which are expanded to whole columns automatically!
 540
 541     count = m_blockSelectionTopLeft.GetCount();
 542     for ( n = 0; n < count; n++ )
 543       {
 544         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 545         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 546         int topRow = coords1.GetRow();
 547         int leftCol = coords1.GetCol();
 548         int bottomRow = coords2.GetRow();
 549         int rightCol = coords2.GetCol();
 550         if ( BlockContainsCell( topRow, leftCol, bottomRow, rightCol,
 551                                 row, col ) )
 552         {
 553             // remove the block
 554             m_blockSelectionTopLeft.RemoveAt(n);
 555             m_blockSelectionBottomRight.RemoveAt(n);
 556             n--; count--;
 557             // add up to 4 smaller blocks and set update region
 558             if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 559             {
 560                 if ( topRow < row )
 561                     SelectBlock( topRow, leftCol, row - 1, rightCol );
 562                 if ( bottomRow > row )
 563                     SelectBlock( row + 1, leftCol, bottomRow, rightCol );
 564             }
 565             if ( m_selectionMode != wxGrid::wxGridSelectRows )
 566             {
 567                 if ( leftCol < col )
 568                     SelectBlock( row, leftCol, row, col - 1 );
 569                 if ( rightCol > col )
 570                     SelectBlock( row, col + 1, row, rightCol );
 571             }
 572         }
 573     }
 574
 575     // remove a cell from a row, adding up to two new blocks
 576     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 577     {
 578         count = m_rowSelection.GetCount();
 579         for ( n = 0; n < count; n++ )
 580         {
 581             if ( m_rowSelection[n] == row )
 582             {
 583                 m_rowSelection.RemoveAt(n);
 584                 n--; count--;
 585                 if (m_selectionMode == wxGrid::wxGridSelectCells)
 586                 {
 587                     if ( col > 0 )
 588                         SelectBlock( row, 0, row, col - 1 );
 589                     if ( col < m_grid->GetNumberCols() - 1 )
 590                         SelectBlock( row, col + 1, row, m_grid->GetNumberCols() - 1 );
 591                 }
 592             }
 593         }
 594     }
 595
 596     // remove a cell from a column, adding up to two new blocks
 597     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 598     {
 599         count = m_colSelection.GetCount();
 600         for ( n = 0; n < count; n++ )
 601         {
 602             if ( m_colSelection[n] == col )
 603             {
 604                 m_colSelection.RemoveAt(n);
 605                 n--; count--;
 606                 if (m_selectionMode == wxGrid::wxGridSelectCells)
 607                 {
 608                     if ( row > 0 )
 609                         SelectBlock( 0, col, row - 1, col );
 610                     if ( row < m_grid->GetNumberRows() - 1 )
 611                         SelectBlock( row + 1, col, m_grid->GetNumberRows() - 1, col );
 612                 }
 613             }
 614         }
 615     }
 616
 617     // Refresh the screen; according to m_selectionMode, we
 618     // need to either update only the cell, or the whole row/column.
 619     wxRect r;
 620     switch (m_selectionMode)
 621     {
 622       case wxGrid::wxGridSelectCells:
 623         r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, col ),
 624                                        wxGridCellCoords( row, col ) );
 625         break;
 626       case wxGrid::wxGridSelectRows:
 627         r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ),
 628                                        wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) );
 629         break;
 630       case wxGrid::wxGridSelectColumns:
 631         r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ),
 632                                        wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) );
 633         break;
 634     }
 635     if ( !m_grid->GetBatchCount() )
 636         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 637 }
 638
 639 void wxGridSelection::ClearSelection()
 640 {
 641     // Should this send deselection events?
 642     size_t n;
 643
 644     // deselect all invidiual cells and update the screen
 645     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 646     {
 647
 648         while( ( n = m_cellSelection.GetCount() ) > 0)
 649         {
 650             wxRect r;
 651             n--;
 652             r = m_grid->BlockToDeviceRect( m_cellSelection[n],
 653                                            m_cellSelection[n] );
 654             m_cellSelection.RemoveAt(n);
 655             if ( !m_grid->GetBatchCount() )
 656                 ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 657         }
 658     }
 659
 660     // deselect all blocks and update the screen
 661     while( ( n = m_blockSelectionTopLeft.GetCount() ) > 0)
 662     {
 663         wxRect r;
 664         n--;
 665         r = m_grid->BlockToDeviceRect( m_blockSelectionTopLeft[n],
 666                                        m_blockSelectionBottomRight[n] );
 667         m_blockSelectionTopLeft.RemoveAt(n);
 668         m_blockSelectionBottomRight.RemoveAt(n);
 669         if ( !m_grid->GetBatchCount() )
 670             ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 671     }
 672
 673     // deselect all rows and update the screen
 674     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 675     {
 676         while( ( n = m_rowSelection.GetCount() ) > 0)
 677         {
 678             n--;
 679             int & row = m_rowSelection[n];
 680             wxRect r;
 681             r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ),
 682                                            wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) );
 683             m_rowSelection.RemoveAt(n);
 684             if ( !m_grid->GetBatchCount() )
 685                 ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 686         }
 687     }
 688
 689     // deselect all columns and update the screen
 690     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 691     {
 692         while( ( n = m_colSelection.GetCount() ) > 0)
 693         {
 694             n--;
 695             int & col = m_colSelection[n];
 696             wxRect r;
 697             r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ),
 698                                            wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) );
 699             m_colSelection.RemoveAt(n);
 700             if ( !m_grid->GetBatchCount() )
 701                 ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 702         }
 703     }
 704 }
 705
 706
 707 void wxGridSelection::UpdateRows( size_t pos, int numRows )
 708 {
 709     size_t count = m_cellSelection.GetCount();
 710     size_t n;
 711     for ( n = 0; n < count; n++ )
 712     {
 713         wxGridCellCoords& coords = m_cellSelection[n];
 714         wxCoord row = coords.GetRow();
 715         if ((size_t)row >= pos)
 716         {
 717             if (numRows > 0)
 718             {
 719                 // If rows inserted, increase row counter where necessary
 720                 coords.SetRow(row + numRows);
 721             }
 722             else if (numRows < 0)
 723             {
 724                 // If rows deleted ...
 725                 if ((size_t)row >= pos - numRows)
 726                 {
 727                     // ...either decrement row counter (if row still exists)...
 728                     coords.SetRow(row + numRows);
 729                 }
 730                 else
 731                 {
 732                     // ...or remove the attribute
 733                     m_cellSelection.RemoveAt(n);
 734                     n--; count--;
 735                 }
 736             }
 737         }
 738     }
 739
 740     count = m_blockSelectionTopLeft.GetCount();
 741     for ( n = 0; n < count; n++ )
 742     {
 743         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 744         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 745         wxCoord row1 = coords1.GetRow();
 746         wxCoord row2 = coords2.GetRow();
 747         if ((size_t)row2 >= pos)
 748         {
 749             if (numRows > 0)
 750             {
 751                 // If rows inserted, increase row counter where necessary
 752                 coords2.SetRow(row2 + numRows);
 753                 if ( (size_t)row1 >= pos )
 754                     coords1.SetRow(row1 + numRows);
 755             }
 756             else if (numRows < 0)
 757             {
 758                 // If rows deleted ...
 759                 if ((size_t)row2 >= pos - numRows)
 760                 {
 761                     // ...either decrement row counter (if row still exists)...
 762                     coords2.SetRow(row2 + numRows);
 763                     if ( (size_t) row1 >= pos)
 764                         coords1.SetRow( wxMax(row1 + numRows, (int) pos) );
 765
 766                 }
 767                 else
 768                 {
 769                     if ( (size_t) row1 >= pos)
 770                     {
 771                         // ...or remove the attribute
 772                         m_blockSelectionTopLeft.RemoveAt(n);
 773                         m_blockSelectionBottomRight.RemoveAt(n);
 774                         n--; count--;
 775                     }
 776                     else
 777                         coords2.SetRow(pos);
 778                 }
 779             }
 780         }
 781     }
 782
 783     count = m_rowSelection.GetCount();
 784     for ( n = 0; n < count; n++ )
 785     {
 786         int & rowOrCol = m_rowSelection[n];
 787         if ( (size_t)rowOrCol >= pos )
 788         {
 789             if ( numRows > 0 )
 790             {
 791                 // If rows inserted, include row counter where necessary
 792                 rowOrCol += numRows;
 793             }
 794             else if ( numRows < 0)
 795             {
 796                 // If rows deleted, either decrement row counter (if row still exists)
 797                 if ((size_t)rowOrCol >= pos - numRows)
 798                     rowOrCol += numRows;
 799                 else
 800                 {
 801                     m_rowSelection.RemoveAt(n);
 802                     n--; count--;
 803                 }
 804             }
 805         }
 806     }
 807 }
 808
 809 void wxGridSelection::UpdateCols( size_t pos, int numCols )
 810 {
 811     size_t count = m_cellSelection.GetCount();
 812     size_t n;
 813     for ( n = 0; n < count; n++ )
 814     {
 815         wxGridCellCoords& coords = m_cellSelection[n];
 816         wxCoord col = coords.GetCol();
 817         if ((size_t)col >= pos)
 818         {
 819             if (numCols > 0)
 820             {
 821                 // If rows inserted, increase row counter where necessary
 822                 coords.SetCol(col + numCols);
 823             }
 824             else if (numCols < 0)
 825             {
 826                 // If rows deleted ...
 827                 if ((size_t)col >= pos - numCols)
 828                 {
 829                     // ...either decrement row counter (if row still exists)...
 830                     coords.SetCol(col + numCols);
 831                 }
 832                 else
 833                 {
 834                     // ...or remove the attribute
 835                     m_cellSelection.RemoveAt(n);
 836                     n--; count--;
 837                 }
 838             }
 839         }
 840     }
 841
 842     count = m_blockSelectionTopLeft.GetCount();
 843     for ( n = 0; n < count; n++ )
 844     {
 845         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 846         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 847         wxCoord col1 = coords1.GetCol();
 848         wxCoord col2 = coords2.GetCol();
 849         if ((size_t)col2 >= pos)
 850         {
 851             if (numCols > 0)
 852             {
 853                 // If rows inserted, increase row counter where necessary
 854                 coords2.SetCol(col2 + numCols);
 855                 if ( (size_t)col1 >= pos )
 856                     coords1.SetCol(col1 + numCols);
 857             }
 858             else if (numCols < 0)
 859             {
 860                 // If cols deleted ...
 861                 if ((size_t)col2 >= pos - numCols)
 862                 {
 863                     // ...either decrement col counter (if col still exists)...
 864                     coords2.SetCol(col2 + numCols);
 865                     if ( (size_t) col1 >= pos)
 866                         coords1.SetCol( wxMax(col1 + numCols, (int) pos) );
 867
 868                 }
 869                 else
 870                 {
 871                     if ( (size_t) col1 >= pos)
 872                     {
 873                         // ...or remove the attribute
 874                         m_blockSelectionTopLeft.RemoveAt(n);
 875                         m_blockSelectionBottomRight.RemoveAt(n);
 876                         n--; count--;
 877                     }
 878                     else
 879                         coords2.SetCol(pos);
 880                 }
 881             }
 882         }
 883     }
 884
 885     count = m_colSelection.GetCount();
 886     for ( n = 0; n < count; n++ )
 887     {
 888         int & rowOrCol = m_colSelection[n];
 889         if ( (size_t)rowOrCol >= pos )
 890         {
 891             if ( numCols > 0 )
 892             {
 893                 // If cols inserted, include col counter where necessary
 894                 rowOrCol += numCols;
 895             }
 896             else if ( numCols < 0)
 897             {
 898                 // If cols deleted, either decrement col counter (if col still exists)
 899                 if ((size_t)rowOrCol >= pos - numCols)
 900                     rowOrCol += numCols;
 901                 else
 902                 {
 903                     m_colSelection.RemoveAt(n);
 904                     n--; count--;
 905                 }
 906             }
 907         }
 908     }
 909 }
 910
 911 int wxGridSelection::BlockContain( int topRow1, int leftCol1,
 912                                    int bottomRow1, int rightCol1,
 913                                    int topRow2, int leftCol2,
 914                                    int bottomRow2, int rightCol2 )
 915 // returns 1, if Block1 contains Block2,
 916 //        -1, if Block2 contains Block1,
 917 //         0, otherwise
 918 {
 919     if ( topRow1 <= topRow2 && bottomRow2 <= bottomRow1 &&
 920          leftCol1 <= leftCol2 && rightCol2 <= rightCol1 )
 921         return 1;
 922     else if ( topRow2 <= topRow1 && bottomRow1 <= bottomRow2 &&
 923               leftCol2 <= leftCol1 && rightCol1 <= rightCol2 )
 924         return -1;
 925     return 0;
 926 }
 927
 928 #endif