| 1 | /////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: generic/gridsel.cpp |
| 3 | // Purpose: wxGridSelection |
| 4 | // Author: Stefan Neis |
| 5 | // Modified by: |
| 6 | // Created: 20/02/1999 |
| 7 | // RCS-ID: $Id$ |
| 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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 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 wxUSE_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 | FALSE, FALSE, FALSE, FALSE, 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 | FALSE, FALSE, FALSE, FALSE, 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 | if ( !m_grid->GetBatchCount() ) |
| 263 | { |
| 264 | wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ), |
| 265 | wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) ); |
| 266 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 267 | } |
| 268 | |
| 269 | // Send Event |
| 270 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 271 | wxEVT_GRID_RANGE_SELECT, |
| 272 | m_grid, |
| 273 | wxGridCellCoords( row, 0 ), |
| 274 | wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ), |
| 275 | TRUE, |
| 276 | ControlDown, ShiftDown, |
| 277 | AltDown, MetaDown ); |
| 278 | |
| 279 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 280 | } |
| 281 | |
| 282 | void wxGridSelection::SelectCol( int col, |
| 283 | bool ControlDown, bool ShiftDown, |
| 284 | bool AltDown, bool MetaDown ) |
| 285 | { |
| 286 | if ( m_selectionMode == wxGrid::wxGridSelectRows ) |
| 287 | return; |
| 288 | size_t count, n; |
| 289 | |
| 290 | // Remove single cells contained in newly selected block. |
| 291 | if ( m_selectionMode == wxGrid::wxGridSelectCells ) |
| 292 | { |
| 293 | count = m_cellSelection.GetCount(); |
| 294 | for ( n = 0; n < count; n++ ) |
| 295 | { |
| 296 | wxGridCellCoords& coords = m_cellSelection[n]; |
| 297 | if ( BlockContainsCell( 0, col, m_grid->GetNumberRows() - 1, col, |
| 298 | coords.GetRow(), coords.GetCol() ) ) |
| 299 | { |
| 300 | m_cellSelection.RemoveAt(n); |
| 301 | n--; count--; |
| 302 | } |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | // Simplify list of selected blocks (if possible) |
| 307 | count = m_blockSelectionTopLeft.GetCount(); |
| 308 | bool done = FALSE; |
| 309 | for ( n = 0; n < count; n++ ) |
| 310 | { |
| 311 | wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n]; |
| 312 | wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n]; |
| 313 | |
| 314 | // Remove block if it is a subset of the column |
| 315 | if ( coords1.GetCol() == col && col == coords2.GetCol() ) |
| 316 | { |
| 317 | m_blockSelectionTopLeft.RemoveAt(n); |
| 318 | m_blockSelectionBottomRight.RemoveAt(n); |
| 319 | n--; count--; |
| 320 | } |
| 321 | else if ( coords1.GetRow() == 0 && |
| 322 | coords2.GetRow() == m_grid->GetNumberRows() - 1 ) |
| 323 | { |
| 324 | // silently return, if row is contained in block |
| 325 | if ( coords1.GetCol() <= col && col <= coords2.GetCol() ) |
| 326 | return; |
| 327 | // expand block, if it touched col |
| 328 | else if ( coords1.GetCol() == col + 1) |
| 329 | { |
| 330 | coords1.SetCol(col); |
| 331 | done = TRUE; |
| 332 | } |
| 333 | else if ( coords2.GetCol() == col - 1) |
| 334 | { |
| 335 | coords2.SetCol(col); |
| 336 | done = TRUE; |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | // Unless we successfully handled the column, |
| 342 | // Check whether col is already selected. |
| 343 | if ( !done ) |
| 344 | { |
| 345 | count = m_colSelection.GetCount(); |
| 346 | for ( n = 0; n < count; n++ ) |
| 347 | { |
| 348 | if ( col == m_colSelection[n] ) |
| 349 | return; |
| 350 | } |
| 351 | |
| 352 | // Add col to selection |
| 353 | m_colSelection.Add(col); |
| 354 | } |
| 355 | |
| 356 | // Update View: |
| 357 | if ( !m_grid->GetBatchCount() ) |
| 358 | { |
| 359 | wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ), |
| 360 | wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) ); |
| 361 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 362 | } |
| 363 | |
| 364 | // Send Event |
| 365 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 366 | wxEVT_GRID_RANGE_SELECT, |
| 367 | m_grid, |
| 368 | wxGridCellCoords( 0, col ), |
| 369 | wxGridCellCoords( m_grid->GetNumberRows() - 1, col ), |
| 370 | TRUE, |
| 371 | ControlDown, ShiftDown, |
| 372 | AltDown, MetaDown ); |
| 373 | |
| 374 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 375 | } |
| 376 | |
| 377 | void wxGridSelection::SelectBlock( int topRow, int leftCol, |
| 378 | int bottomRow, int rightCol, |
| 379 | bool ControlDown, bool ShiftDown, |
| 380 | bool AltDown, bool MetaDown, |
| 381 | bool sendEvent ) |
| 382 | { |
| 383 | // Fix the coordinates of the block if needed. |
| 384 | if ( m_selectionMode == wxGrid::wxGridSelectRows ) |
| 385 | { |
| 386 | leftCol = 0; |
| 387 | rightCol = m_grid->GetNumberCols() - 1; |
| 388 | } |
| 389 | else if ( m_selectionMode == wxGrid::wxGridSelectColumns ) |
| 390 | { |
| 391 | topRow = 0; |
| 392 | bottomRow = m_grid->GetNumberRows() - 1; |
| 393 | } |
| 394 | if ( topRow > bottomRow ) |
| 395 | { |
| 396 | int temp = topRow; |
| 397 | topRow = bottomRow; |
| 398 | bottomRow = temp; |
| 399 | } |
| 400 | |
| 401 | if ( leftCol > rightCol ) |
| 402 | { |
| 403 | int temp = leftCol; |
| 404 | leftCol = rightCol; |
| 405 | rightCol = temp; |
| 406 | } |
| 407 | |
| 408 | // Handle single cell selection in SelectCell. |
| 409 | // (MB: added check for selection mode here to prevent |
| 410 | // crashes if, for example, we are select rows and the |
| 411 | // grid only has 1 col) |
| 412 | if ( m_selectionMode == wxGrid::wxGridSelectCells && |
| 413 | topRow == bottomRow && leftCol == rightCol ) |
| 414 | SelectCell( topRow, leftCol, ControlDown, ShiftDown, |
| 415 | AltDown, MetaDown, sendEvent ); |
| 416 | |
| 417 | size_t count, n; |
| 418 | // Remove single cells contained in newly selected block. |
| 419 | if ( m_selectionMode == wxGrid::wxGridSelectCells ) |
| 420 | { |
| 421 | count = m_cellSelection.GetCount(); |
| 422 | for ( n = 0; n < count; n++ ) |
| 423 | { |
| 424 | wxGridCellCoords& coords = m_cellSelection[n]; |
| 425 | if ( BlockContainsCell( topRow, leftCol, bottomRow, rightCol, |
| 426 | coords.GetRow(), coords.GetCol() ) ) |
| 427 | { |
| 428 | m_cellSelection.RemoveAt(n); |
| 429 | n--; count--; |
| 430 | } |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | // If a block containing the selection is already selected, return, |
| 435 | // if a block contained in the selection is found, remove it. |
| 436 | |
| 437 | count = m_blockSelectionTopLeft.GetCount(); |
| 438 | for ( n = 0; n < count; n++ ) |
| 439 | { |
| 440 | wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n]; |
| 441 | wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n]; |
| 442 | switch ( BlockContain( coords1.GetRow(), coords1.GetCol(), |
| 443 | coords2.GetRow(), coords2.GetCol(), |
| 444 | topRow, leftCol, bottomRow, rightCol ) ) |
| 445 | { |
| 446 | case 1: |
| 447 | return; |
| 448 | case -1: |
| 449 | m_blockSelectionTopLeft.RemoveAt(n); |
| 450 | m_blockSelectionBottomRight.RemoveAt(n); |
| 451 | n--; count--; |
| 452 | default: |
| 453 | ; |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | // If a row containing the selection is already selected, return, |
| 458 | // if a row contained in newly selected block is found, remove it. |
| 459 | if ( m_selectionMode != wxGrid::wxGridSelectColumns ) |
| 460 | { |
| 461 | count = m_rowSelection.GetCount(); |
| 462 | for ( n = 0; n < count; n++ ) |
| 463 | { |
| 464 | switch ( BlockContain( m_rowSelection[n], 0, |
| 465 | m_rowSelection[n], m_grid->GetNumberCols()-1, |
| 466 | topRow, leftCol, bottomRow, rightCol ) ) |
| 467 | { |
| 468 | case 1: |
| 469 | return; |
| 470 | case -1: |
| 471 | m_rowSelection.RemoveAt(n); |
| 472 | n--; count--; |
| 473 | default: |
| 474 | ; |
| 475 | } |
| 476 | } |
| 477 | } |
| 478 | if ( m_selectionMode != wxGrid::wxGridSelectRows ) |
| 479 | { |
| 480 | count = m_colSelection.GetCount(); |
| 481 | for ( n = 0; n < count; n++ ) |
| 482 | { |
| 483 | switch ( BlockContain( 0, m_colSelection[n], |
| 484 | m_grid->GetNumberRows()-1, m_colSelection[n], |
| 485 | topRow, leftCol, bottomRow, rightCol ) ) |
| 486 | { |
| 487 | case 1: |
| 488 | return; |
| 489 | case -1: |
| 490 | m_colSelection.RemoveAt(n); |
| 491 | n--; count--; |
| 492 | default: |
| 493 | ; |
| 494 | } |
| 495 | } |
| 496 | } |
| 497 | m_blockSelectionTopLeft.Add( wxGridCellCoords( topRow, leftCol ) ); |
| 498 | m_blockSelectionBottomRight.Add( wxGridCellCoords( bottomRow, rightCol ) ); |
| 499 | |
| 500 | // Update View: |
| 501 | if ( !m_grid->GetBatchCount() ) |
| 502 | { |
| 503 | wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( topRow, leftCol ), |
| 504 | wxGridCellCoords( bottomRow, rightCol ) ); |
| 505 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 506 | } |
| 507 | |
| 508 | // Send Event, if not disabled. |
| 509 | if ( sendEvent ) |
| 510 | { |
| 511 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 512 | wxEVT_GRID_RANGE_SELECT, |
| 513 | m_grid, |
| 514 | wxGridCellCoords( topRow, leftCol ), |
| 515 | wxGridCellCoords( bottomRow, rightCol ), |
| 516 | TRUE, |
| 517 | ControlDown, ShiftDown, |
| 518 | AltDown, MetaDown ); |
| 519 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | void wxGridSelection::SelectCell( int row, int col, |
| 524 | bool ControlDown, bool ShiftDown, |
| 525 | bool AltDown, bool MetaDown, |
| 526 | bool sendEvent ) |
| 527 | { |
| 528 | if ( m_selectionMode == wxGrid::wxGridSelectRows ) |
| 529 | { |
| 530 | SelectBlock(row, 0, row, m_grid->GetNumberCols() - 1, |
| 531 | ControlDown, ShiftDown, AltDown, MetaDown, sendEvent); |
| 532 | return; |
| 533 | } |
| 534 | else if ( m_selectionMode == wxGrid::wxGridSelectColumns ) |
| 535 | { |
| 536 | SelectBlock(0, col, m_grid->GetNumberRows() - 1, col, |
| 537 | ControlDown, ShiftDown, AltDown, MetaDown, sendEvent); |
| 538 | return; |
| 539 | } |
| 540 | else if ( IsInSelection ( row, col ) ) |
| 541 | return; |
| 542 | m_cellSelection.Add( wxGridCellCoords( row, col ) ); |
| 543 | |
| 544 | // Update View: |
| 545 | if ( !m_grid->GetBatchCount() ) |
| 546 | { |
| 547 | wxRect r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, col ), |
| 548 | wxGridCellCoords( row, col ) ); |
| 549 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 550 | } |
| 551 | |
| 552 | // Send event |
| 553 | if (sendEvent) |
| 554 | { |
| 555 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 556 | wxEVT_GRID_RANGE_SELECT, |
| 557 | m_grid, |
| 558 | wxGridCellCoords( row, col ), |
| 559 | wxGridCellCoords( row, col ), |
| 560 | TRUE, |
| 561 | ControlDown, ShiftDown, |
| 562 | AltDown, MetaDown); |
| 563 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | void wxGridSelection::ToggleCellSelection( int row, int col, |
| 568 | bool ControlDown, bool ShiftDown, |
| 569 | bool AltDown, bool MetaDown ) |
| 570 | { |
| 571 | // if the cell is not selected, select it |
| 572 | if ( !IsInSelection ( row, col ) ) |
| 573 | { |
| 574 | SelectCell( row, col, ControlDown, ShiftDown, |
| 575 | AltDown, MetaDown ); |
| 576 | return; |
| 577 | } |
| 578 | |
| 579 | // otherwise deselect it. This can be simple or more or |
| 580 | // less difficult, depending on how the cell is selected. |
| 581 | size_t count, n; |
| 582 | |
| 583 | // The simplest case: The cell is contained in m_cellSelection |
| 584 | // Then it can't be contained in rows/cols/block (since those |
| 585 | // would remove the cell from m_cellSelection on creation), so |
| 586 | // we just have to remove it from m_cellSelection. |
| 587 | |
| 588 | if ( m_selectionMode == wxGrid::wxGridSelectCells ) |
| 589 | { |
| 590 | count = m_cellSelection.GetCount(); |
| 591 | for ( n = 0; n < count; n++ ) |
| 592 | { |
| 593 | wxGridCellCoords& coords = m_cellSelection[n]; |
| 594 | if ( row == coords.GetRow() && col == coords.GetCol() ) |
| 595 | { |
| 596 | wxGridCellCoords coords = m_cellSelection[n]; |
| 597 | m_cellSelection.RemoveAt(n); |
| 598 | if ( !m_grid->GetBatchCount() ) |
| 599 | { |
| 600 | wxRect r = m_grid->BlockToDeviceRect( coords, coords ); |
| 601 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 602 | } |
| 603 | |
| 604 | // Send event |
| 605 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 606 | wxEVT_GRID_RANGE_SELECT, |
| 607 | m_grid, |
| 608 | wxGridCellCoords( row, col ), |
| 609 | wxGridCellCoords( row, col ), |
| 610 | FALSE, |
| 611 | ControlDown, ShiftDown, |
| 612 | AltDown, MetaDown ); |
| 613 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 614 | return; |
| 615 | } |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | // The most difficult case: The cell is member of one or even several |
| 620 | // blocks. Split each such block in up to 4 new parts, that don't |
| 621 | // contain the cell to be selected, like this: |
| 622 | // |---------------------------| |
| 623 | // | | |
| 624 | // | part 1 | |
| 625 | // | | |
| 626 | // |---------------------------| |
| 627 | // | part 3 |x| part 4 | |
| 628 | // |---------------------------| |
| 629 | // | | |
| 630 | // | part 2 | |
| 631 | // | | |
| 632 | // |---------------------------| |
| 633 | // (The x marks the newly deselected cell). |
| 634 | // Note: in row selection mode, we only need part1 and part2; |
| 635 | // in column selection mode, we only need part 3 and part4, |
| 636 | // which are expanded to whole columns automatically! |
| 637 | |
| 638 | count = m_blockSelectionTopLeft.GetCount(); |
| 639 | for ( n = 0; n < count; n++ ) |
| 640 | { |
| 641 | wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n]; |
| 642 | wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n]; |
| 643 | int topRow = coords1.GetRow(); |
| 644 | int leftCol = coords1.GetCol(); |
| 645 | int bottomRow = coords2.GetRow(); |
| 646 | int rightCol = coords2.GetCol(); |
| 647 | if ( BlockContainsCell( topRow, leftCol, bottomRow, rightCol, |
| 648 | row, col ) ) |
| 649 | { |
| 650 | // remove the block |
| 651 | m_blockSelectionTopLeft.RemoveAt(n); |
| 652 | m_blockSelectionBottomRight.RemoveAt(n); |
| 653 | n--; count--; |
| 654 | // add up to 4 smaller blocks and set update region |
| 655 | if ( m_selectionMode != wxGrid::wxGridSelectColumns ) |
| 656 | { |
| 657 | if ( topRow < row ) |
| 658 | SelectBlock( topRow, leftCol, row - 1, rightCol, |
| 659 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 660 | if ( bottomRow > row ) |
| 661 | SelectBlock( row + 1, leftCol, bottomRow, rightCol, |
| 662 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 663 | } |
| 664 | if ( m_selectionMode != wxGrid::wxGridSelectRows ) |
| 665 | { |
| 666 | if ( leftCol < col ) |
| 667 | SelectBlock( row, leftCol, row, col - 1, |
| 668 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 669 | if ( rightCol > col ) |
| 670 | SelectBlock( row, col + 1, row, rightCol, |
| 671 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | // remove a cell from a row, adding up to two new blocks |
| 677 | if ( m_selectionMode != wxGrid::wxGridSelectColumns ) |
| 678 | { |
| 679 | count = m_rowSelection.GetCount(); |
| 680 | for ( n = 0; n < count; n++ ) |
| 681 | { |
| 682 | if ( m_rowSelection[n] == row ) |
| 683 | { |
| 684 | m_rowSelection.RemoveAt(n); |
| 685 | n--; count--; |
| 686 | if (m_selectionMode == wxGrid::wxGridSelectCells) |
| 687 | { |
| 688 | if ( col > 0 ) |
| 689 | SelectBlock( row, 0, row, col - 1, |
| 690 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 691 | if ( col < m_grid->GetNumberCols() - 1 ) |
| 692 | SelectBlock( row, col + 1, |
| 693 | row, m_grid->GetNumberCols() - 1, |
| 694 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 695 | } |
| 696 | } |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | // remove a cell from a column, adding up to two new blocks |
| 701 | if ( m_selectionMode != wxGrid::wxGridSelectRows ) |
| 702 | { |
| 703 | count = m_colSelection.GetCount(); |
| 704 | for ( n = 0; n < count; n++ ) |
| 705 | { |
| 706 | if ( m_colSelection[n] == col ) |
| 707 | { |
| 708 | m_colSelection.RemoveAt(n); |
| 709 | n--; count--; |
| 710 | if (m_selectionMode == wxGrid::wxGridSelectCells) |
| 711 | { |
| 712 | if ( row > 0 ) |
| 713 | SelectBlock( 0, col, row - 1, col, |
| 714 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 715 | if ( row < m_grid->GetNumberRows() - 1 ) |
| 716 | SelectBlock( row + 1, col, |
| 717 | m_grid->GetNumberRows() - 1, col, |
| 718 | FALSE, FALSE, FALSE, FALSE, FALSE ); |
| 719 | } |
| 720 | } |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | // Refresh the screen and send the event; according to m_selectionMode, |
| 725 | // we need to either update only the cell, or the whole row/column. |
| 726 | wxRect r; |
| 727 | switch (m_selectionMode) |
| 728 | { |
| 729 | case wxGrid::wxGridSelectCells: |
| 730 | { |
| 731 | if ( !m_grid->GetBatchCount() ) |
| 732 | { |
| 733 | r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, col ), |
| 734 | wxGridCellCoords( row, col ) ); |
| 735 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 736 | } |
| 737 | |
| 738 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 739 | wxEVT_GRID_RANGE_SELECT, |
| 740 | m_grid, |
| 741 | wxGridCellCoords( row, col ), |
| 742 | wxGridCellCoords( row, col ), |
| 743 | FALSE, |
| 744 | ControlDown, ShiftDown, |
| 745 | AltDown, MetaDown ); |
| 746 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 747 | break; |
| 748 | } |
| 749 | case wxGrid::wxGridSelectRows: |
| 750 | { |
| 751 | if ( !m_grid->GetBatchCount() ) |
| 752 | { |
| 753 | r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ), |
| 754 | wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) ); |
| 755 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 756 | } |
| 757 | |
| 758 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 759 | wxEVT_GRID_RANGE_SELECT, |
| 760 | m_grid, |
| 761 | wxGridCellCoords( row, 0 ), |
| 762 | wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ), |
| 763 | FALSE, |
| 764 | ControlDown, ShiftDown, |
| 765 | AltDown, MetaDown ); |
| 766 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 767 | break; |
| 768 | } |
| 769 | case wxGrid::wxGridSelectColumns: |
| 770 | { |
| 771 | if ( !m_grid->GetBatchCount() ) |
| 772 | { |
| 773 | r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ), |
| 774 | wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) ); |
| 775 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 776 | } |
| 777 | |
| 778 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 779 | wxEVT_GRID_RANGE_SELECT, |
| 780 | m_grid, |
| 781 | wxGridCellCoords( 0, col ), |
| 782 | wxGridCellCoords( m_grid->GetNumberRows() - 1, col ), |
| 783 | FALSE, |
| 784 | ControlDown, ShiftDown, |
| 785 | AltDown, MetaDown ); |
| 786 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 787 | break; |
| 788 | } |
| 789 | } |
| 790 | } |
| 791 | |
| 792 | void wxGridSelection::ClearSelection() |
| 793 | { |
| 794 | size_t n; |
| 795 | wxRect r; |
| 796 | wxGridCellCoords coords1, coords2; |
| 797 | |
| 798 | // deselect all invidiual cells and update the screen |
| 799 | if ( m_selectionMode == wxGrid::wxGridSelectCells ) |
| 800 | { |
| 801 | while( ( n = m_cellSelection.GetCount() ) > 0) |
| 802 | { |
| 803 | n--; |
| 804 | coords1 = m_cellSelection[n]; |
| 805 | m_cellSelection.RemoveAt(n); |
| 806 | if ( !m_grid->GetBatchCount() ) |
| 807 | { |
| 808 | r = m_grid->BlockToDeviceRect( coords1, coords1 ); |
| 809 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 810 | } |
| 811 | } |
| 812 | } |
| 813 | |
| 814 | // deselect all blocks and update the screen |
| 815 | while( ( n = m_blockSelectionTopLeft.GetCount() ) > 0) |
| 816 | { |
| 817 | n--; |
| 818 | coords1 = m_blockSelectionTopLeft[n]; |
| 819 | coords2 = m_blockSelectionBottomRight[n]; |
| 820 | m_blockSelectionTopLeft.RemoveAt(n); |
| 821 | m_blockSelectionBottomRight.RemoveAt(n); |
| 822 | if ( !m_grid->GetBatchCount() ) |
| 823 | { |
| 824 | r = m_grid->BlockToDeviceRect( coords1, coords2 ); |
| 825 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | // deselect all rows and update the screen |
| 830 | if ( m_selectionMode != wxGrid::wxGridSelectColumns ) |
| 831 | { |
| 832 | while( ( n = m_rowSelection.GetCount() ) > 0) |
| 833 | { |
| 834 | n--; |
| 835 | int row = m_rowSelection[n]; |
| 836 | m_rowSelection.RemoveAt(n); |
| 837 | if ( !m_grid->GetBatchCount() ) |
| 838 | { |
| 839 | r = m_grid->BlockToDeviceRect( wxGridCellCoords( row, 0 ), |
| 840 | wxGridCellCoords( row, m_grid->GetNumberCols() - 1 ) ); |
| 841 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | // deselect all columns and update the screen |
| 847 | if ( m_selectionMode != wxGrid::wxGridSelectRows ) |
| 848 | { |
| 849 | while( ( n = m_colSelection.GetCount() ) > 0) |
| 850 | { |
| 851 | n--; |
| 852 | int col = m_colSelection[n]; |
| 853 | m_colSelection.RemoveAt(n); |
| 854 | if ( !m_grid->GetBatchCount() ) |
| 855 | { |
| 856 | r = m_grid->BlockToDeviceRect( wxGridCellCoords( 0, col ), |
| 857 | wxGridCellCoords( m_grid->GetNumberRows() - 1, col ) ); |
| 858 | ((wxWindow *)m_grid->m_gridWin)->Refresh( FALSE, &r ); |
| 859 | } |
| 860 | } |
| 861 | } |
| 862 | |
| 863 | // One deselection event, indicating deselection of _all_ cells. |
| 864 | // (No finer grained events for each of the smaller regions |
| 865 | // deselected above!) |
| 866 | wxGridRangeSelectEvent gridEvt( m_grid->GetId(), |
| 867 | wxEVT_GRID_RANGE_SELECT, |
| 868 | m_grid, |
| 869 | wxGridCellCoords( 0, 0 ), |
| 870 | wxGridCellCoords( m_grid->GetNumberRows() - 1, |
| 871 | m_grid->GetNumberCols() - 1 ), |
| 872 | FALSE ); |
| 873 | |
| 874 | m_grid->GetEventHandler()->ProcessEvent(gridEvt); |
| 875 | } |
| 876 | |
| 877 | |
| 878 | void wxGridSelection::UpdateRows( size_t pos, int numRows ) |
| 879 | { |
| 880 | size_t count = m_cellSelection.GetCount(); |
| 881 | size_t n; |
| 882 | for ( n = 0; n < count; n++ ) |
| 883 | { |
| 884 | wxGridCellCoords& coords = m_cellSelection[n]; |
| 885 | wxCoord row = coords.GetRow(); |
| 886 | if ((size_t)row >= pos) |
| 887 | { |
| 888 | if (numRows > 0) |
| 889 | { |
| 890 | // If rows inserted, increase row counter where necessary |
| 891 | coords.SetRow(row + numRows); |
| 892 | } |
| 893 | else if (numRows < 0) |
| 894 | { |
| 895 | // If rows deleted ... |
| 896 | if ((size_t)row >= pos - numRows) |
| 897 | { |
| 898 | // ...either decrement row counter (if row still exists)... |
| 899 | coords.SetRow(row + numRows); |
| 900 | } |
| 901 | else |
| 902 | { |
| 903 | // ...or remove the attribute |
| 904 | m_cellSelection.RemoveAt(n); |
| 905 | n--; count--; |
| 906 | } |
| 907 | } |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | count = m_blockSelectionTopLeft.GetCount(); |
| 912 | for ( n = 0; n < count; n++ ) |
| 913 | { |
| 914 | wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n]; |
| 915 | wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n]; |
| 916 | wxCoord row1 = coords1.GetRow(); |
| 917 | wxCoord row2 = coords2.GetRow(); |
| 918 | if ((size_t)row2 >= pos) |
| 919 | { |
| 920 | if (numRows > 0) |
| 921 | { |
| 922 | // If rows inserted, increase row counter where necessary |
| 923 | coords2.SetRow(row2 + numRows); |
| 924 | if ( (size_t)row1 >= pos ) |
| 925 | coords1.SetRow(row1 + numRows); |
| 926 | } |
| 927 | else if (numRows < 0) |
| 928 | { |
| 929 | // If rows deleted ... |
| 930 | if ((size_t)row2 >= pos - numRows) |
| 931 | { |
| 932 | // ...either decrement row counter (if row still exists)... |
| 933 | coords2.SetRow(row2 + numRows); |
| 934 | if ( (size_t) row1 >= pos) |
| 935 | coords1.SetRow( wxMax(row1 + numRows, (int) pos) ); |
| 936 | |
| 937 | } |
| 938 | else |
| 939 | { |
| 940 | if ( (size_t) row1 >= pos) |
| 941 | { |
| 942 | // ...or remove the attribute |
| 943 | m_blockSelectionTopLeft.RemoveAt(n); |
| 944 | m_blockSelectionBottomRight.RemoveAt(n); |
| 945 | n--; count--; |
| 946 | } |
| 947 | else |
| 948 | coords2.SetRow(pos); |
| 949 | } |
| 950 | } |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | count = m_rowSelection.GetCount(); |
| 955 | for ( n = 0; n < count; n++ ) |
| 956 | { |
| 957 | int rowOrCol_ = m_rowSelection [ n ]; |
| 958 | |
| 959 | if ( ( size_t ) rowOrCol_ >= pos ) |
| 960 | { |
| 961 | if ( numRows > 0 ) |
| 962 | { |
| 963 | m_rowSelection [ n ] += numRows; |
| 964 | } |
| 965 | else if ( numRows < 0 ) |
| 966 | { |
| 967 | if ( ( size_t ) rowOrCol_ >= ( pos - numRows ) ) |
| 968 | m_rowSelection [ n ] += numRows; |
| 969 | else |
| 970 | { |
| 971 | m_rowSelection.RemoveAt ( n ); |
| 972 | n--; |
| 973 | count--; |
| 974 | } |
| 975 | } |
| 976 | } |
| 977 | } |
| 978 | // No need to touch selected columns, unless we removed _all_ |
| 979 | // rows, in this case, we remove all columns from the selection. |
| 980 | |
| 981 | if ( !m_grid->GetNumberRows() ) |
| 982 | m_colSelection.Clear(); |
| 983 | } |
| 984 | |
| 985 | |
| 986 | void wxGridSelection::UpdateCols( size_t pos, int numCols ) |
| 987 | { |
| 988 | size_t count = m_cellSelection.GetCount(); |
| 989 | size_t n; |
| 990 | for ( n = 0; n < count; n++ ) |
| 991 | { |
| 992 | wxGridCellCoords& coords = m_cellSelection[n]; |
| 993 | wxCoord col = coords.GetCol(); |
| 994 | if ((size_t)col >= pos) |
| 995 | { |
| 996 | if (numCols > 0) |
| 997 | { |
| 998 | // If rows inserted, increase row counter where necessary |
| 999 | coords.SetCol(col + numCols); |
| 1000 | } |
| 1001 | else if (numCols < 0) |
| 1002 | { |
| 1003 | // If rows deleted ... |
| 1004 | if ((size_t)col >= pos - numCols) |
| 1005 | { |
| 1006 | // ...either decrement row counter (if row still exists)... |
| 1007 | coords.SetCol(col + numCols); |
| 1008 | } |
| 1009 | else |
| 1010 | { |
| 1011 | // ...or remove the attribute |
| 1012 | m_cellSelection.RemoveAt(n); |
| 1013 | n--; count--; |
| 1014 | } |
| 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | count = m_blockSelectionTopLeft.GetCount(); |
| 1020 | for ( n = 0; n < count; n++ ) |
| 1021 | { |
| 1022 | wxGridCellCoords& coords1 = m_blockSelectionTopLeft[n]; |
| 1023 | wxGridCellCoords& coords2 = m_blockSelectionBottomRight[n]; |
| 1024 | wxCoord col1 = coords1.GetCol(); |
| 1025 | wxCoord col2 = coords2.GetCol(); |
| 1026 | if ((size_t)col2 >= pos) |
| 1027 | { |
| 1028 | if (numCols > 0) |
| 1029 | { |
| 1030 | // If rows inserted, increase row counter where necessary |
| 1031 | coords2.SetCol(col2 + numCols); |
| 1032 | if ( (size_t)col1 >= pos ) |
| 1033 | coords1.SetCol(col1 + numCols); |
| 1034 | } |
| 1035 | else if (numCols < 0) |
| 1036 | { |
| 1037 | // If cols deleted ... |
| 1038 | if ((size_t)col2 >= pos - numCols) |
| 1039 | { |
| 1040 | // ...either decrement col counter (if col still exists)... |
| 1041 | coords2.SetCol(col2 + numCols); |
| 1042 | if ( (size_t) col1 >= pos) |
| 1043 | coords1.SetCol( wxMax(col1 + numCols, (int) pos) ); |
| 1044 | |
| 1045 | } |
| 1046 | else |
| 1047 | { |
| 1048 | if ( (size_t) col1 >= pos) |
| 1049 | { |
| 1050 | // ...or remove the attribute |
| 1051 | m_blockSelectionTopLeft.RemoveAt(n); |
| 1052 | m_blockSelectionBottomRight.RemoveAt(n); |
| 1053 | n--; count--; |
| 1054 | } |
| 1055 | else |
| 1056 | coords2.SetCol(pos); |
| 1057 | } |
| 1058 | } |
| 1059 | } |
| 1060 | } |
| 1061 | |
| 1062 | count = m_colSelection.GetCount(); |
| 1063 | for ( n = 0; n < count; n++ ) |
| 1064 | { |
| 1065 | |
| 1066 | int rowOrCol = m_colSelection [ n ]; |
| 1067 | if ( ( size_t ) rowOrCol >= pos ) |
| 1068 | { |
| 1069 | if ( numCols > 0 ) |
| 1070 | m_colSelection [ n ] += numCols; |
| 1071 | else if ( numCols < 0 ) |
| 1072 | { |
| 1073 | if ( ( size_t ) rowOrCol >= ( pos -numCols ) ) |
| 1074 | m_colSelection [ n ] += numCols; |
| 1075 | else |
| 1076 | { |
| 1077 | m_colSelection.RemoveAt ( n ); |
| 1078 | n--; |
| 1079 | count--; |
| 1080 | } |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | } |
| 1085 | |
| 1086 | // No need to touch selected rows, unless we removed _all_ |
| 1087 | // columns, in this case, we remove all rows from the selection. |
| 1088 | if ( !m_grid->GetNumberCols() ) |
| 1089 | m_rowSelection.Clear(); |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | int wxGridSelection::BlockContain( int topRow1, int leftCol1, |
| 1094 | int bottomRow1, int rightCol1, |
| 1095 | int topRow2, int leftCol2, |
| 1096 | int bottomRow2, int rightCol2 ) |
| 1097 | // returns 1, if Block1 contains Block2, |
| 1098 | // -1, if Block2 contains Block1, |
| 1099 | // 0, otherwise |
| 1100 | { |
| 1101 | if ( topRow1 <= topRow2 && bottomRow2 <= bottomRow1 && |
| 1102 | leftCol1 <= leftCol2 && rightCol2 <= rightCol1 ) |
| 1103 | return 1; |
| 1104 | else if ( topRow2 <= topRow1 && bottomRow1 <= bottomRow2 && |
| 1105 | leftCol2 <= leftCol1 && rightCol1 <= rightCol2 ) |
| 1106 | return -1; |
| 1107 | return 0; |
| 1108 | } |
| 1109 | |
| 1110 | #endif |