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