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                                  0, FALSE );
 169                 }
 170             }
 171             else // selmode == wxGridSelectColumns)
 172             {
 173                 if (topRow != 0 || bottomRow != m_grid->GetNumberRows() - 1 )
 174                 {
 175                     m_blockSelectionTopLeft.RemoveAt(n);
 176                     m_blockSelectionBottomRight.RemoveAt(n);
 177                     SelectBlock( 0, leftCol,
 178                                  m_grid->GetNumberRows() - 1, rightCol,
 179                                  0, FALSE );
 180                 }
 181             }
 182         }
 183         m_selectionMode = selmode;
 184     }
 185 }
 186
 187 void wxGridSelection::SelectRow( int row,
 188                                  bool ControlDown,  bool ShiftDown,
 189                                  bool AltDown, bool MetaDown )
 190 {
 191     if ( m_selectionMode == wxGrid::wxGridSelectColumns )
 192         return;
 193     size_t count, n;
 194
 195     // Remove single cells contained in newly selected block.
 196     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 197     {
 198         count = m_cellSelection.GetCount();
 199         for ( n = 0; n < count; n++ )
 200         {
 201             wxGridCellCoords& coords = m_cellSelection[n];
 202             if ( BlockContainsCell( row, 0, row, m_grid->GetNumberCols() - 1,
 203                                     coords.GetRow(), coords.GetCol() ) )
 204             {
 205                 m_cellSelection.RemoveAt(n);
 206                 n--; count--;
 207             }
 208         }
 209     }
 210
 211     // Simplify list of selected blocks (if possible)
 212     count = m_blockSelectionTopLeft.GetCount();
 213     bool done = FALSE;
 214     for ( n = 0; n < count; n++ )
 215     {
 216         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 217         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 218
 219         // Remove block if it is a subset of the row
 220         if ( coords1.GetRow() == row && row == coords2.GetRow() )
 221         {
 222             m_blockSelectionTopLeft.RemoveAt(n);
 223             m_blockSelectionBottomRight.RemoveAt(n);
 224             n--; count--;
 225         }
 226         else if ( coords1.GetCol() == 0  &&
 227                   coords2.GetCol() == m_grid->GetNumberCols() - 1 )
 228         {
 229             // silently return, if row is contained in block
 230             if ( coords1.GetRow() <= row && row <= coords2.GetRow() )
 231                 return;
 232             // expand block, if it touched row
 233             else if ( coords1.GetRow() == row + 1)
 234             {
 235                 coords1.SetRow(row);
 236                 done = TRUE;
 237             }
 238             else if ( coords2.GetRow() == row - 1)
 239             {
 240                 coords2.SetRow(row);
 241                 done = TRUE;
 242             }
 243         }
 244     }
 245
 246     // Unless we successfully handled the row,
 247     // check whether row is already selected.
 248     if ( !done )
 249     {
 250         count = m_rowSelection.GetCount();
 251         for ( n = 0; n < count; n++ )
 252         {
 253             if ( row == m_rowSelection[n] )
 254                 return;
 255         }
 256
 257         // Add row to selection
 258         m_rowSelection.Add(row);
 259     }
 260
 261     // Update View:
 262     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ),
 263                                           wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) );
 264     if ( !m_grid->GetBatchCount() )
 265         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 266
 267     // Send Event
 268     wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 269                                     wxEVT_GRID_RANGE_SELECT,
 270                                     m_grid,
 271                                     wxGridCellCoords( row, 0 ),
 272                                     wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ),
 273                                     TRUE,
 274                                     ControlDown,  ShiftDown,
 275                                     AltDown, MetaDown );
 276
 277     m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 278 }
 279
 280 void wxGridSelection::SelectCol( int col,
 281                                  bool ControlDown,  bool ShiftDown,
 282                                  bool AltDown, bool MetaDown )
 283 {
 284     if ( m_selectionMode == wxGrid::wxGridSelectRows )
 285         return;
 286     size_t count, n;
 287
 288     // Remove single cells contained in newly selected block.
 289     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 290     {
 291         count = m_cellSelection.GetCount();
 292         for ( n = 0; n < count; n++ )
 293         {
 294             wxGridCellCoords& coords = m_cellSelection[n];
 295             if ( BlockContainsCell( 0, col, m_grid->GetNumberRows() - 1, col,
 296                                     coords.GetRow(), coords.GetCol() ) )
 297             {
 298                 m_cellSelection.RemoveAt(n);
 299                 n--; count--;
 300             }
 301         }
 302     }
 303
 304     // Simplify list of selected blocks (if possible)
 305     count = m_blockSelectionTopLeft.GetCount();
 306     bool done = FALSE;
 307     for ( n = 0; n < count; n++ )
 308     {
 309         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 310         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 311
 312         // Remove block if it is a subset of the column
 313         if ( coords1.GetCol() == col && col == coords2.GetCol() )
 314         {
 315             m_blockSelectionTopLeft.RemoveAt(n);
 316             m_blockSelectionBottomRight.RemoveAt(n);
 317             n--; count--;
 318         }
 319         else if ( coords1.GetRow() == 0  &&
 320                   coords2.GetRow() == m_grid->GetNumberRows() - 1 )
 321         {
 322             // silently return, if row is contained in block
 323             if ( coords1.GetCol() <= col && col <= coords2.GetCol() )
 324                 return;
 325             // expand block, if it touched col
 326             else if ( coords1.GetCol() == col + 1)
 327             {
 328                 coords1.SetCol(col);
 329                 done = TRUE;
 330             }
 331             else if ( coords2.GetCol() == col - 1)
 332             {
 333                 coords2.SetCol(col);
 334                 done = TRUE;
 335             }
 336         }
 337     }
 338
 339     // Unless we successfully handled the column,
 340     // Check whether col is already selected.
 341     if ( !done )
 342     {
 343         count = m_colSelection.GetCount();
 344         for ( n = 0; n < count; n++ )
 345         {
 346             if ( col == m_colSelection[n] )
 347                 return;
 348         }
 349
 350         // Add col to selection
 351         m_colSelection.Add(col);
 352     }
 353
 354     // Update View:
 355     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ),
 356                                           wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) );
 357     if ( !m_grid->GetBatchCount() )
 358         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 359
 360     // Send Event
 361     wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 362                                     wxEVT_GRID_RANGE_SELECT,
 363                                     m_grid,
 364                                     wxGridCellCoords( 0, col ),
 365                                     wxGridCellCoords( m_grid->GetNumberRows() - 1, col ),
 366                                     TRUE,
 367                                     ControlDown,  ShiftDown,
 368                                     AltDown, MetaDown );
 369
 370     m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 371 }
 372
 373 void wxGridSelection::SelectBlock( int topRow, int leftCol,
 374                                    int bottomRow, int rightCol,
 375                                    bool ControlDown, bool ShiftDown,
 376                                    bool AltDown, bool MetaDown,
 377                                    bool sendEvent )
 378 {
 379     // Fix the coordinates of the block if needed.
 380     if ( m_selectionMode == wxGrid::wxGridSelectRows )
 381     {
 382         leftCol = 0;
 383         rightCol = m_grid->GetNumberCols() - 1;
 384     }
 385     else if ( m_selectionMode == wxGrid::wxGridSelectColumns )
 386     {
 387         topRow = 0;
 388         bottomRow = m_grid->GetNumberRows() - 1;
 389     }
 390     if ( topRow > bottomRow )
 391     {
 392         int temp = topRow;
 393         topRow = bottomRow;
 394         bottomRow = temp;
 395     }
 396
 397     if ( leftCol > rightCol )
 398     {
 399         int temp = leftCol;
 400         leftCol = rightCol;
 401         rightCol = temp;
 402     }
 403
 404     // Handle single cell selection in SelectCell.
 405     if ( topRow == bottomRow && leftCol == rightCol )
 406         SelectCell( topRow, leftCol, ControlDown,  ShiftDown,
 407                     AltDown, MetaDown, sendEvent );
 408
 409     size_t count, n;
 410     // Remove single cells contained in newly selected block.
 411     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 412     {
 413         count = m_cellSelection.GetCount();
 414         for ( n = 0; n < count; n++ )
 415         {
 416             wxGridCellCoords& coords = m_cellSelection[n];
 417             if ( BlockContainsCell( topRow, leftCol, bottomRow, rightCol,
 418                                     coords.GetRow(), coords.GetCol() ) )
 419             {
 420                 m_cellSelection.RemoveAt(n);
 421                 n--; count--;
 422             }
 423         }
 424     }
 425
 426     // If a block containing the selection is already selected, return,
 427     // if a block contained in the selection is found, remove it.
 428
 429     count = m_blockSelectionTopLeft.GetCount();
 430     for ( n = 0; n < count; n++ )
 431     {
 432         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 433         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 434         switch ( BlockContain( coords1.GetRow(), coords1.GetCol(),
 435                                coords2.GetRow(), coords2.GetCol(),
 436                                topRow, leftCol, bottomRow, rightCol ) )
 437         {
 438           case 1:
 439             return;
 440           case -1:
 441             m_blockSelectionTopLeft.RemoveAt(n);
 442             m_blockSelectionBottomRight.RemoveAt(n);
 443             n--; count--;
 444           default:
 445             ;
 446         }
 447     }
 448
 449     // If a row containing the selection is already selected, return,
 450     // if a row contained in newly selected block is found, remove it.
 451     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 452     {
 453         count = m_rowSelection.GetCount();
 454         for ( n = 0; n < count; n++ )
 455         {
 456             switch ( BlockContain( m_rowSelection[n], 0,
 457                                    m_rowSelection[n], m_grid->GetNumberCols()-1,
 458                                    topRow, leftCol, bottomRow, rightCol ) )
 459             {
 460               case 1:
 461                 return;
 462               case -1:
 463                 m_rowSelection.RemoveAt(n);
 464                 n--; count--;
 465               default:
 466                 ;
 467             }
 468         }
 469     }
 470     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 471     {
 472         count = m_colSelection.GetCount();
 473         for ( n = 0; n < count; n++ )
 474         {
 475             switch ( BlockContain( 0, m_colSelection[n],
 476                                    m_grid->GetNumberRows()-1, m_colSelection[n],
 477                                    topRow, leftCol, bottomRow, rightCol ) )
 478             {
 479               case 1:
 480                 return;
 481               case -1:
 482                 m_colSelection.RemoveAt(n);
 483                 n--; count--;
 484               default:
 485                 ;
 486             }
 487         }
 488     }
 489     m_blockSelectionTopLeft.Add( wxGridCellCoords( topRow, leftCol ) );
 490     m_blockSelectionBottomRight.Add( wxGridCellCoords( bottomRow, rightCol ) );
 491
 492     // Update View:
 493     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( topRow, leftCol ),
 494                                           wxGridCellCoords( bottomRow, rightCol ) );
 495     if ( !m_grid->GetBatchCount() )
 496         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 497
 498     // Send Event, if not disabled.
 499     if ( sendEvent )
 500     {
 501         wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 502                                         wxEVT_GRID_RANGE_SELECT,
 503                                         m_grid,
 504                                         wxGridCellCoords( topRow, leftCol ),
 505                                         wxGridCellCoords( bottomRow, rightCol ),
 506                                         TRUE,
 507                                         ControlDown, ShiftDown,
 508                                         AltDown, MetaDown );
 509         m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 510     }
 511 }
 512
 513 void wxGridSelection::SelectCell( int row, int col,
 514                                   bool ControlDown, bool ShiftDown,
 515                                   bool AltDown, bool MetaDown,
 516                                   bool sendEvent )
 517 {
 518     if ( m_selectionMode == wxGrid::wxGridSelectRows )
 519     {
 520         SelectBlock(row, 0, row, m_grid->GetNumberCols() - 1,
 521                     ControlDown, ShiftDown, AltDown, MetaDown);
 522         return;
 523     }
 524     else if ( m_selectionMode == wxGrid::wxGridSelectColumns )
 525     {
 526         SelectBlock(0, col, m_grid->GetNumberRows() - 1, col,
 527                     ControlDown, ShiftDown, AltDown, MetaDown);
 528         return;
 529     }
 530     else if ( IsInSelection ( row, col ) )
 531         return;
 532     m_cellSelection.Add( wxGridCellCoords( row, col ) );
 533
 534     // Update View:
 535     wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, col ),
 536                                           wxGridCellCoords( row, col ) );
 537     if ( !m_grid->GetBatchCount() )
 538         ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 539
 540     // Send event
 541     if (sendEvent)
 542     {
 543         wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 544                                         wxEVT_GRID_RANGE_SELECT,
 545                                         m_grid,
 546                                         wxGridCellCoords( row, col ),
 547                                         wxGridCellCoords( row, col ),
 548                                         TRUE,
 549                                         ControlDown, ShiftDown,
 550                                         AltDown, MetaDown);
 551         m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 552     }
 553 }
 554
 555 void wxGridSelection::ToggleCellSelection( int row, int col,
 556                                            bool ControlDown, bool ShiftDown,
 557                                            bool AltDown, bool MetaDown )
 558 {
 559     // if the cell is not selected, select it
 560     if ( !IsInSelection ( row, col ) )
 561     {
 562         SelectCell( row, col, ControlDown, ShiftDown,
 563                     AltDown, MetaDown );
 564         return;
 565     }
 566
 567     // otherwise deselect it. This can be simple or more or
 568     // less difficult, depending on how the cell is selected.
 569     size_t count, n;
 570
 571     // The simplest case: The cell is contained in m_cellSelection
 572     // Then it can't be contained in rows/cols/block (since those
 573     // would remove the cell from m_cellSelection on creation), so
 574     // we just have to remove it from m_cellSelection.
 575
 576     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 577     {
 578         count = m_cellSelection.GetCount();
 579         for ( n = 0; n < count; n++ )
 580         {
 581             wxGridCellCoords& coords = m_cellSelection[n];
 582             if ( row == coords.GetRow() && col == coords.GetCol() )
 583             {
 584                 wxRect r;
 585                 r = m_grid->BlockToDeviceRect( m_cellSelection[n],
 586                                                m_cellSelection[n] );
 587                 m_cellSelection.RemoveAt(n);
 588                 n--; count--;
 589                 if ( !m_grid->GetBatchCount() )
 590                     ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 591
 592                 // Send event
 593                 wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 594                                                 wxEVT_GRID_RANGE_SELECT,
 595                                                 m_grid,
 596                                                 wxGridCellCoords( row, col ),
 597                                                 wxGridCellCoords( row, col ),
 598                                                 FALSE,
 599                                                 ControlDown, ShiftDown,
 600                                                 AltDown, MetaDown );
 601                 m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 602                 return;
 603             }
 604         }
 605     }
 606
 607     // The most difficult case: The cell is member of one or even several
 608     // blocks. Split each such block in up to 4 new parts, that don't
 609     // contain the cell to be selected, like this:
 610     // |---------------------------|
 611     // |                           |
 612     // |           part 1          |
 613     // |                           |
 614     // |---------------------------|
 615     // |   part 3   |x|   part 4   |
 616     // |---------------------------|
 617     // |                           |
 618     // |           part 2          |
 619     // |                           |
 620     // |---------------------------|
 621     //   (The x marks the newly deselected cell).
 622     // Note: in row selection mode, we only need part1 and part2;
 623     //       in column selection mode, we only need part 3 and part4,
 624     //          which are expanded to whole columns automatically!
 625
 626     count = m_blockSelectionTopLeft.GetCount();
 627     for ( n = 0; n < count; n++ )
 628       {
 629         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 630         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 631         int topRow = coords1.GetRow();
 632         int leftCol = coords1.GetCol();
 633         int bottomRow = coords2.GetRow();
 634         int rightCol = coords2.GetCol();
 635         if ( BlockContainsCell( topRow, leftCol, bottomRow, rightCol,
 636                                 row, col ) )
 637         {
 638             // remove the block
 639             m_blockSelectionTopLeft.RemoveAt(n);
 640             m_blockSelectionBottomRight.RemoveAt(n);
 641             n--; count--;
 642             // add up to 4 smaller blocks and set update region
 643             if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 644             {
 645                 if ( topRow < row )
 646                     SelectBlock( topRow, leftCol,
 647                                  row - 1, rightCol, 0, FALSE );
 648                 if ( bottomRow > row )
 649                     SelectBlock( row + 1, leftCol,
 650                                  bottomRow, rightCol, 0, FALSE );
 651             }
 652             if ( m_selectionMode != wxGrid::wxGridSelectRows )
 653             {
 654                 if ( leftCol < col )
 655                     SelectBlock( row, leftCol, row, col - 1, 0, FALSE );
 656                 if ( rightCol > col )
 657                     SelectBlock( row, col + 1, row, rightCol, 0, FALSE );
 658             }
 659         }
 660     }
 661
 662     // remove a cell from a row, adding up to two new blocks
 663     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 664     {
 665         count = m_rowSelection.GetCount();
 666         for ( n = 0; n < count; n++ )
 667         {
 668             if ( m_rowSelection[n] == row )
 669             {
 670                 m_rowSelection.RemoveAt(n);
 671                 n--; count--;
 672                 if (m_selectionMode == wxGrid::wxGridSelectCells)
 673                 {
 674                     if ( col > 0 )
 675                         SelectBlock( row, 0, row, col - 1, 0, FALSE );
 676                     if ( col < m_grid->GetNumberCols() - 1 )
 677                         SelectBlock( row, col + 1,
 678                                      row, m_grid->GetNumberCols() - 1,
 679                                      0, FALSE );
 680                 }
 681             }
 682         }
 683     }
 684
 685     // remove a cell from a column, adding up to two new blocks
 686     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 687     {
 688         count = m_colSelection.GetCount();
 689         for ( n = 0; n < count; n++ )
 690         {
 691             if ( m_colSelection[n] == col )
 692             {
 693                 m_colSelection.RemoveAt(n);
 694                 n--; count--;
 695                 if (m_selectionMode == wxGrid::wxGridSelectCells)
 696                 {
 697                     if ( row > 0 )
 698                         SelectBlock( 0, col, row - 1, col, 0, FALSE );
 699                     if ( row < m_grid->GetNumberRows() - 1 )
 700                         SelectBlock( row + 1, col,
 701                                      m_grid->GetNumberRows() - 1, col,
 702                                      0, FALSE );
 703                 }
 704             }
 705         }
 706     }
 707
 708     // Refresh the screen and send the event; according to m_selectionMode,
 709     // we need to either update only the cell, or the whole row/column.
 710     wxRect r;
 711     switch (m_selectionMode)
 712     {
 713       case wxGrid::wxGridSelectCells:
 714       {
 715           r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, col ),
 716                                          wxGridCellCoords( row, col ) );
 717           if ( !m_grid->GetBatchCount() )
 718               ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 719           wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 720                                           wxEVT_GRID_RANGE_SELECT,
 721                                           m_grid,
 722                                           wxGridCellCoords( row, col ),
 723                                           wxGridCellCoords( row, col ),
 724                                           FALSE,
 725                                           ControlDown, ShiftDown,
 726                                           AltDown, MetaDown );
 727           m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 728           break;
 729       }
 730       case wxGrid::wxGridSelectRows:
 731       {
 732           r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ),
 733                                          wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) );
 734           if ( !m_grid->GetBatchCount() )
 735               ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 736           wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 737                                           wxEVT_GRID_RANGE_SELECT,
 738                                           m_grid,
 739                                           wxGridCellCoords( row, 0 ),
 740                                           wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ),
 741                                           FALSE,
 742                                           ControlDown, ShiftDown,
 743                                           AltDown, MetaDown );
 744           m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 745           break;
 746       }
 747       case wxGrid::wxGridSelectColumns:
 748       {
 749           r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ),
 750                                          wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) );
 751           if ( !m_grid->GetBatchCount() )
 752               ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 753           wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 754                                           wxEVT_GRID_RANGE_SELECT,
 755                                           m_grid,
 756                                           wxGridCellCoords( 0, col ),
 757                                           wxGridCellCoords( m_grid->GetNumberRows() - 1, col ),
 758                                           FALSE,
 759                                           ControlDown, ShiftDown,
 760                                           AltDown, MetaDown );
 761           m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 762           break;
 763       }
 764     }
 765 }
 766
 767 void wxGridSelection::ClearSelection()
 768 {
 769     size_t n;
 770
 771     // deselect all invidiual cells and update the screen
 772     if ( m_selectionMode == wxGrid::wxGridSelectCells )
 773     {
 774
 775         while( ( n = m_cellSelection.GetCount() ) > 0)
 776         {
 777             wxRect r;
 778             n--;
 779             r = m_grid->BlockToDeviceRect( m_cellSelection[n],
 780                                            m_cellSelection[n] );
 781             m_cellSelection.RemoveAt(n);
 782             if ( !m_grid->GetBatchCount() )
 783                 ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 784         }
 785     }
 786
 787     // deselect all blocks and update the screen
 788     while( ( n = m_blockSelectionTopLeft.GetCount() ) > 0)
 789     {
 790         wxRect r;
 791         n--;
 792         r = m_grid->BlockToDeviceRect( m_blockSelectionTopLeft[n],
 793                                        m_blockSelectionBottomRight[n] );
 794         m_blockSelectionTopLeft.RemoveAt(n);
 795         m_blockSelectionBottomRight.RemoveAt(n);
 796         if ( !m_grid->GetBatchCount() )
 797             ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 798     }
 799
 800     // deselect all rows and update the screen
 801     if ( m_selectionMode != wxGrid::wxGridSelectColumns )
 802     {
 803         while( ( n = m_rowSelection.GetCount() ) > 0)
 804         {
 805             n--;
 806             int & row = m_rowSelection[n];
 807             wxRect r;
 808             r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ),
 809                                            wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) );
 810             m_rowSelection.RemoveAt(n);
 811             if ( !m_grid->GetBatchCount() )
 812                 ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 813         }
 814     }
 815
 816     // deselect all columns and update the screen
 817     if ( m_selectionMode != wxGrid::wxGridSelectRows )
 818     {
 819         while( ( n = m_colSelection.GetCount() ) > 0)
 820         {
 821             n--;
 822             int & col = m_colSelection[n];
 823             wxRect r;
 824             r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ),
 825                                            wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) );
 826             m_colSelection.RemoveAt(n);
 827             if ( !m_grid->GetBatchCount() )
 828                 ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r );
 829         }
 830     }
 831
 832     // One deselection event, indicating deselection of _all_ cells.
 833     // (No finer grained events for each of the smaller regions
 834     //  deselected above!)
 835     wxGridRangeSelectEvent gridEvt( m_grid->GetId(),
 836                                     wxEVT_GRID_RANGE_SELECT,
 837                                     m_grid,
 838                                     wxGridCellCoords( 0, 0 ),
 839                                     wxGridCellCoords( m_grid->GetNumberRows() - 1,
 840                                                       m_grid->GetNumberCols() - 1 ),
 841                                     FALSE );
 842
 843     m_grid->GetEventHandler()->ProcessEvent(gridEvt);
 844 }
 845
 846
 847 void wxGridSelection::UpdateRows( size_t pos, int numRows )
 848 {
 849     size_t count = m_cellSelection.GetCount();
 850     size_t n;
 851     for ( n = 0; n < count; n++ )
 852     {
 853         wxGridCellCoords& coords = m_cellSelection[n];
 854         wxCoord row = coords.GetRow();
 855         if ((size_t)row >= pos)
 856         {
 857             if (numRows > 0)
 858             {
 859                 // If rows inserted, increase row counter where necessary
 860                 coords.SetRow(row + numRows);
 861             }
 862             else if (numRows < 0)
 863             {
 864                 // If rows deleted ...
 865                 if ((size_t)row >= pos - numRows)
 866                 {
 867                     // ...either decrement row counter (if row still exists)...
 868                     coords.SetRow(row + numRows);
 869                 }
 870                 else
 871                 {
 872                     // ...or remove the attribute
 873                     m_cellSelection.RemoveAt(n);
 874                     n--; count--;
 875                 }
 876             }
 877         }
 878     }
 879
 880     count = m_blockSelectionTopLeft.GetCount();
 881     for ( n = 0; n < count; n++ )
 882     {
 883         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 884         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 885         wxCoord row1 = coords1.GetRow();
 886         wxCoord row2 = coords2.GetRow();
 887         if ((size_t)row2 >= pos)
 888         {
 889             if (numRows > 0)
 890             {
 891                 // If rows inserted, increase row counter where necessary
 892                 coords2.SetRow(row2 + numRows);
 893                 if ( (size_t)row1 >= pos )
 894                     coords1.SetRow(row1 + numRows);
 895             }
 896             else if (numRows < 0)
 897             {
 898                 // If rows deleted ...
 899                 if ((size_t)row2 >= pos - numRows)
 900                 {
 901                     // ...either decrement row counter (if row still exists)...
 902                     coords2.SetRow(row2 + numRows);
 903                     if ( (size_t) row1 >= pos)
 904                         coords1.SetRow( wxMax(row1 + numRows, (int) pos) );
 905
 906                 }
 907                 else
 908                 {
 909                     if ( (size_t) row1 >= pos)
 910                     {
 911                         // ...or remove the attribute
 912                         m_blockSelectionTopLeft.RemoveAt(n);
 913                         m_blockSelectionBottomRight.RemoveAt(n);
 914                         n--; count--;
 915                     }
 916                     else
 917                         coords2.SetRow(pos);
 918                 }
 919             }
 920         }
 921     }
 922
 923     count = m_rowSelection.GetCount();
 924     for ( n = 0; n < count; n++ )
 925     {
 926         int & rowOrCol = m_rowSelection[n];
 927         if ( (size_t)rowOrCol >= pos )
 928         {
 929             if ( numRows > 0 )
 930             {
 931                 // If rows inserted, include row counter where necessary
 932                 rowOrCol += numRows;
 933             }
 934             else if ( numRows < 0)
 935             {
 936                 // If rows deleted, either decrement row counter (if row still exists)
 937                 if ((size_t)rowOrCol >= pos - numRows)
 938                     rowOrCol += numRows;
 939                 else
 940                 {
 941                     m_rowSelection.RemoveAt(n);
 942                     n--; count--;
 943                 }
 944             }
 945         }
 946     }
 947     // No need to touch selected columns, unless we removed _all_
 948     // rows, in this case, we remove all columns from the selection.
 949     if ( !m_grid->GetNumberRows() )
 950         m_colSelection.Clear();
 951 }
 952
 953 void wxGridSelection::UpdateCols( size_t pos, int numCols )
 954 {
 955     size_t count = m_cellSelection.GetCount();
 956     size_t n;
 957     for ( n = 0; n < count; n++ )
 958     {
 959         wxGridCellCoords& coords = m_cellSelection[n];
 960         wxCoord col = coords.GetCol();
 961         if ((size_t)col >= pos)
 962         {
 963             if (numCols > 0)
 964             {
 965                 // If rows inserted, increase row counter where necessary
 966                 coords.SetCol(col + numCols);
 967             }
 968             else if (numCols < 0)
 969             {
 970                 // If rows deleted ...
 971                 if ((size_t)col >= pos - numCols)
 972                 {
 973                     // ...either decrement row counter (if row still exists)...
 974                     coords.SetCol(col + numCols);
 975                 }
 976                 else
 977                 {
 978                     // ...or remove the attribute
 979                     m_cellSelection.RemoveAt(n);
 980                     n--; count--;
 981                 }
 982             }
 983         }
 984     }
 985
 986     count = m_blockSelectionTopLeft.GetCount();
 987     for ( n = 0; n < count; n++ )
 988     {
 989         wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n];
 990         wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n];
 991         wxCoord col1 = coords1.GetCol();
 992         wxCoord col2 = coords2.GetCol();
 993         if ((size_t)col2 >= pos)
 994         {
 995             if (numCols > 0)
 996             {
 997                 // If rows inserted, increase row counter where necessary
 998                 coords2.SetCol(col2 + numCols);
 999                 if ( (size_t)col1 >= pos )
1000                     coords1.SetCol(col1 + numCols);
1001             }
1002             else if (numCols < 0)
1003             {
1004                 // If cols deleted ...
1005                 if ((size_t)col2 >= pos - numCols)
1006                 {
1007                     // ...either decrement col counter (if col still exists)...
1008                     coords2.SetCol(col2 + numCols);
1009                     if ( (size_t) col1 >= pos)
1010                         coords1.SetCol( wxMax(col1 + numCols, (int) pos) );
1011
1012                 }
1013                 else
1014                 {
1015                     if ( (size_t) col1 >= pos)
1016                     {
1017                         // ...or remove the attribute
1018                         m_blockSelectionTopLeft.RemoveAt(n);
1019                         m_blockSelectionBottomRight.RemoveAt(n);
1020                         n--; count--;
1021                     }
1022                     else
1023                         coords2.SetCol(pos);
1024                 }
1025             }
1026         }
1027     }
1028
1029     count = m_colSelection.GetCount();
1030     for ( n = 0; n < count; n++ )
1031     {
1032         int & rowOrCol = m_colSelection[n];
1033         if ( (size_t)rowOrCol >= pos )
1034         {
1035             if ( numCols > 0 )
1036             {
1037                 // If cols inserted, include col counter where necessary
1038                 rowOrCol += numCols;
1039             }
1040             else if ( numCols < 0)
1041             {
1042                 // If cols deleted, either decrement col counter (if col still exists)
1043                 if ((size_t)rowOrCol >= pos - numCols)
1044                     rowOrCol += numCols;
1045                 else
1046                 {
1047                     m_colSelection.RemoveAt(n);
1048                     n--; count--;
1049                 }
1050             }
1051         }
1052     }
1053
1054     // No need to touch selected rows, unless we removed _all_
1055     // columns, in this case, we remove all rows from the selection.
1056     if ( !m_grid->GetNumberCols() )
1057         m_rowSelection.Clear();
1058 }
1059
1060 int wxGridSelection::BlockContain( int topRow1, int leftCol1,
1061                                    int bottomRow1, int rightCol1,
1062                                    int topRow2, int leftCol2,
1063                                    int bottomRow2, int rightCol2 )
1064 // returns 1, if Block1 contains Block2,
1065 //        -1, if Block2 contains Block1,
1066 //         0, otherwise
1067 {
1068     if ( topRow1 <= topRow2 && bottomRow2 <= bottomRow1 &&
1069          leftCol1 <= leftCol2 && rightCol2 <= rightCol1 )
1070         return 1;
1071     else if ( topRow2 <= topRow1 && bottomRow1 <= bottomRow2 &&
1072               leftCol2 <= leftCol1 && rightCol1 <= rightCol2 )
1073         return -1;
1074     return 0;
1075 }
1076
1077 #endif