| 1 | /* |
| 2 | * Jexer - Java Text User Interface |
| 3 | * |
| 4 | * The MIT License (MIT) |
| 5 | * |
| 6 | * Copyright (C) 2019 Kevin Lamonte |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 9 | * copy of this software and associated documentation files (the "Software"), |
| 10 | * to deal in the Software without restriction, including without limitation |
| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 12 | * and/or sell copies of the Software, and to permit persons to whom the |
| 13 | * Software is furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice shall be included in |
| 16 | * all copies or substantial portions of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 24 | * DEALINGS IN THE SOFTWARE. |
| 25 | * |
| 26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] |
| 27 | * @version 1 |
| 28 | */ |
| 29 | package jexer; |
| 30 | |
| 31 | import java.io.IOException; |
| 32 | import java.util.ArrayList; |
| 33 | import java.util.List; |
| 34 | |
| 35 | import jexer.bits.CellAttributes; |
| 36 | import jexer.event.TKeypressEvent; |
| 37 | import jexer.event.TMenuEvent; |
| 38 | import jexer.event.TMouseEvent; |
| 39 | import jexer.event.TResizeEvent; |
| 40 | import jexer.menu.TMenu; |
| 41 | import static jexer.TKeypress.*; |
| 42 | |
| 43 | /** |
| 44 | * TTableWidget is used to display and edit regular two-dimensional tables of |
| 45 | * cells. |
| 46 | * |
| 47 | * This class was inspired by a TTable implementation originally developed by |
| 48 | * David "Niki" ROULET [niki@nikiroo.be], made available under MIT at |
| 49 | * https://github.com/nikiroo/jexer/tree/ttable_pull. |
| 50 | */ |
| 51 | public class TTableWidget extends TWidget { |
| 52 | |
| 53 | // ------------------------------------------------------------------------ |
| 54 | // Constants -------------------------------------------------------------- |
| 55 | // ------------------------------------------------------------------------ |
| 56 | |
| 57 | /** |
| 58 | * Available borders for cells. |
| 59 | */ |
| 60 | public enum Border { |
| 61 | /** |
| 62 | * No border. |
| 63 | */ |
| 64 | NONE, |
| 65 | |
| 66 | /** |
| 67 | * Single bar: \u2502 (vertical) and \u2500 (horizontal). |
| 68 | */ |
| 69 | SINGLE, |
| 70 | |
| 71 | /** |
| 72 | * Double bar: \u2551 (vertical) and \u2550 (horizontal). |
| 73 | */ |
| 74 | DOUBLE, |
| 75 | |
| 76 | /** |
| 77 | * Thick bar: \u2503 (vertical heavy) and \u2501 (horizontal heavy). |
| 78 | */ |
| 79 | THICK, |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Row label width. |
| 84 | */ |
| 85 | private static final int ROW_LABEL_WIDTH = 8; |
| 86 | |
| 87 | /** |
| 88 | * Column label height. |
| 89 | */ |
| 90 | private static final int COLUMN_LABEL_HEIGHT = 1; |
| 91 | |
| 92 | /** |
| 93 | * Column default width. |
| 94 | */ |
| 95 | private static final int COLUMN_DEFAULT_WIDTH = 8; |
| 96 | |
| 97 | /** |
| 98 | * Extra rows to add. |
| 99 | */ |
| 100 | private static final int EXTRA_ROWS = 10; |
| 101 | |
| 102 | /** |
| 103 | * Extra columns to add. |
| 104 | */ |
| 105 | private static final int EXTRA_COLUMNS = 10 * (8 + 1); |
| 106 | |
| 107 | // ------------------------------------------------------------------------ |
| 108 | // Variables -------------------------------------------------------------- |
| 109 | // ------------------------------------------------------------------------ |
| 110 | |
| 111 | /** |
| 112 | * The underlying data, organized as columns. |
| 113 | */ |
| 114 | private ArrayList<Column> columns = new ArrayList<Column>(); |
| 115 | |
| 116 | /** |
| 117 | * The underlying data, organized as rows. |
| 118 | */ |
| 119 | private ArrayList<Row> rows = new ArrayList<Row>(); |
| 120 | |
| 121 | /** |
| 122 | * The row in model corresponding to the top-left visible cell. |
| 123 | */ |
| 124 | private int top = 0; |
| 125 | |
| 126 | /** |
| 127 | * The column in model corresponding to the top-left visible cell. |
| 128 | */ |
| 129 | private int left = 0; |
| 130 | |
| 131 | /** |
| 132 | * The row in model corresponding to the currently selected cell. |
| 133 | */ |
| 134 | private int selectedRow = 0; |
| 135 | |
| 136 | /** |
| 137 | * The column in model corresponding to the currently selected cell. |
| 138 | */ |
| 139 | private int selectedColumn = 0; |
| 140 | |
| 141 | /** |
| 142 | * If true, highlight the entire row of the currently-selected cell. |
| 143 | */ |
| 144 | private boolean highlightRow = false; |
| 145 | |
| 146 | /** |
| 147 | * If true, highlight the entire column of the currently-selected cell. |
| 148 | */ |
| 149 | private boolean highlightColumn = false; |
| 150 | |
| 151 | /** |
| 152 | * If true, show the row labels as the first column. |
| 153 | */ |
| 154 | private boolean showRowLabels = true; |
| 155 | |
| 156 | /** |
| 157 | * If true, show the column labels as the first row. |
| 158 | */ |
| 159 | private boolean showColumnLabels = true; |
| 160 | |
| 161 | /** |
| 162 | * The top border for the first row. |
| 163 | */ |
| 164 | private Border topBorder = Border.NONE; |
| 165 | |
| 166 | /** |
| 167 | * The left border for the first column. |
| 168 | */ |
| 169 | private Border leftBorder = Border.NONE; |
| 170 | |
| 171 | /** |
| 172 | * Column represents a column of cells. |
| 173 | */ |
| 174 | public class Column { |
| 175 | |
| 176 | /** |
| 177 | * X position of this column. |
| 178 | */ |
| 179 | private int x = 0; |
| 180 | |
| 181 | /** |
| 182 | * Width of column. |
| 183 | */ |
| 184 | private int width = COLUMN_DEFAULT_WIDTH; |
| 185 | |
| 186 | /** |
| 187 | * The cells of this column. |
| 188 | */ |
| 189 | private ArrayList<Cell> cells = new ArrayList<Cell>(); |
| 190 | |
| 191 | /** |
| 192 | * Column label. |
| 193 | */ |
| 194 | private String label = ""; |
| 195 | |
| 196 | /** |
| 197 | * The right border for this column. |
| 198 | */ |
| 199 | private Border rightBorder = Border.NONE; |
| 200 | |
| 201 | /** |
| 202 | * Constructor sets label to lettered column. |
| 203 | * |
| 204 | * @param col column number to use for this column. Column 0 will be |
| 205 | * "A", column 1 will be "B", column 26 will be "AA", and so on. |
| 206 | */ |
| 207 | Column(int col) { |
| 208 | StringBuilder sb = new StringBuilder(); |
| 209 | for (;;) { |
| 210 | sb.append((char) ('A' + (col % 26))); |
| 211 | if (col < 26) { |
| 212 | break; |
| 213 | } |
| 214 | col /= 26; |
| 215 | } |
| 216 | label = sb.reverse().toString(); |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Add an entry to this column. |
| 221 | * |
| 222 | * @param cell the cell to add |
| 223 | */ |
| 224 | public void add(final Cell cell) { |
| 225 | cells.add(cell); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * Get an entry from this column. |
| 230 | * |
| 231 | * @param row the entry index to get |
| 232 | * @return the cell at row |
| 233 | */ |
| 234 | public Cell get(final int row) { |
| 235 | return cells.get(row); |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * Get the X position of the cells in this column. |
| 240 | * |
| 241 | * @return the position |
| 242 | */ |
| 243 | public int getX() { |
| 244 | return x; |
| 245 | } |
| 246 | |
| 247 | /** |
| 248 | * Set the X position of the cells in this column. |
| 249 | * |
| 250 | * @param x the position |
| 251 | */ |
| 252 | public void setX(final int x) { |
| 253 | for (Cell cell: cells) { |
| 254 | cell.setX(x); |
| 255 | } |
| 256 | this.x = x; |
| 257 | } |
| 258 | |
| 259 | } |
| 260 | |
| 261 | /** |
| 262 | * Row represents a row of cells. |
| 263 | */ |
| 264 | public class Row { |
| 265 | |
| 266 | /** |
| 267 | * Y position of this row. |
| 268 | */ |
| 269 | private int y = 0; |
| 270 | |
| 271 | /** |
| 272 | * Height of row. |
| 273 | */ |
| 274 | private int height = 1; |
| 275 | |
| 276 | /** |
| 277 | * The cells of this row. |
| 278 | */ |
| 279 | private ArrayList<Cell> cells = new ArrayList<Cell>(); |
| 280 | |
| 281 | /** |
| 282 | * Row label. |
| 283 | */ |
| 284 | private String label = ""; |
| 285 | |
| 286 | /** |
| 287 | * The bottom border for this row. |
| 288 | */ |
| 289 | private Border bottomBorder = Border.NONE; |
| 290 | |
| 291 | /** |
| 292 | * Constructor sets label to numbered row. |
| 293 | * |
| 294 | * @param row row number to use for this row |
| 295 | */ |
| 296 | Row(final int row) { |
| 297 | label = Integer.toString(row); |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Add an entry to this column. |
| 302 | * |
| 303 | * @param cell the cell to add |
| 304 | */ |
| 305 | public void add(final Cell cell) { |
| 306 | cells.add(cell); |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Get an entry from this row. |
| 311 | * |
| 312 | * @param column the entry index to get |
| 313 | * @return the cell at column |
| 314 | */ |
| 315 | public Cell get(final int column) { |
| 316 | return cells.get(column); |
| 317 | } |
| 318 | /** |
| 319 | * Get the Y position of the cells in this column. |
| 320 | * |
| 321 | * @return the position |
| 322 | */ |
| 323 | public int getY() { |
| 324 | return y; |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * Set the Y position of the cells in this column. |
| 329 | * |
| 330 | * @param y the position |
| 331 | */ |
| 332 | public void setY(final int y) { |
| 333 | for (Cell cell: cells) { |
| 334 | cell.setY(y); |
| 335 | } |
| 336 | this.y = y; |
| 337 | } |
| 338 | |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Cell represents an editable cell in the table. Normally, navigation |
| 343 | * to a cell only highlights it; pressing Enter or F2 will switch to |
| 344 | * editing mode. |
| 345 | */ |
| 346 | public class Cell extends TWidget { |
| 347 | |
| 348 | // -------------------------------------------------------------------- |
| 349 | // Variables ---------------------------------------------------------- |
| 350 | // -------------------------------------------------------------------- |
| 351 | |
| 352 | /** |
| 353 | * The field containing the cell's data. |
| 354 | */ |
| 355 | private TField field; |
| 356 | |
| 357 | /** |
| 358 | * The column of this cell. |
| 359 | */ |
| 360 | private int column; |
| 361 | |
| 362 | /** |
| 363 | * The row of this cell. |
| 364 | */ |
| 365 | private int row; |
| 366 | |
| 367 | /** |
| 368 | * If true, the cell is being edited. |
| 369 | */ |
| 370 | private boolean isEditing = false; |
| 371 | |
| 372 | /** |
| 373 | * Text of field before editing. |
| 374 | */ |
| 375 | private String fieldText; |
| 376 | |
| 377 | // -------------------------------------------------------------------- |
| 378 | // Constructors ------------------------------------------------------- |
| 379 | // -------------------------------------------------------------------- |
| 380 | |
| 381 | /** |
| 382 | * Public constructor. |
| 383 | * |
| 384 | * @param parent parent widget |
| 385 | * @param x column relative to parent |
| 386 | * @param y row relative to parent |
| 387 | * @param width width of widget |
| 388 | * @param height height of widget |
| 389 | * @param column column index of this cell |
| 390 | * @param row row index of this cell |
| 391 | */ |
| 392 | public Cell(final TTableWidget parent, final int x, final int y, |
| 393 | final int width, final int height, final int column, |
| 394 | final int row) { |
| 395 | |
| 396 | super(parent, x, y, width, height); |
| 397 | this.column = column; |
| 398 | this.row = row; |
| 399 | |
| 400 | field = addField(0, 0, width, false); |
| 401 | field.setEnabled(false); |
| 402 | field.setBackgroundChar(' '); |
| 403 | } |
| 404 | |
| 405 | // -------------------------------------------------------------------- |
| 406 | // Event handlers ----------------------------------------------------- |
| 407 | // -------------------------------------------------------------------- |
| 408 | |
| 409 | /** |
| 410 | * Handle mouse double-click events. |
| 411 | * |
| 412 | * @param mouse mouse double-click event |
| 413 | */ |
| 414 | @Override |
| 415 | public void onMouseDoubleClick(final TMouseEvent mouse) { |
| 416 | // Use TWidget's code to pass the event to the children. |
| 417 | super.onMouseDown(mouse); |
| 418 | |
| 419 | // Double-click means to start editing. |
| 420 | fieldText = field.getText(); |
| 421 | isEditing = true; |
| 422 | field.setEnabled(true); |
| 423 | activate(field); |
| 424 | |
| 425 | if (isActive()) { |
| 426 | // Let the table know that I was activated. |
| 427 | ((TTableWidget) getParent()).selectedRow = row; |
| 428 | ((TTableWidget) getParent()).selectedColumn = column; |
| 429 | ((TTableWidget) getParent()).alignGrid(); |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | /** |
| 434 | * Handle mouse press events. |
| 435 | * |
| 436 | * @param mouse mouse button press event |
| 437 | */ |
| 438 | @Override |
| 439 | public void onMouseDown(final TMouseEvent mouse) { |
| 440 | // Use TWidget's code to pass the event to the children. |
| 441 | super.onMouseDown(mouse); |
| 442 | |
| 443 | if (isActive()) { |
| 444 | // Let the table know that I was activated. |
| 445 | ((TTableWidget) getParent()).selectedRow = row; |
| 446 | ((TTableWidget) getParent()).selectedColumn = column; |
| 447 | ((TTableWidget) getParent()).alignGrid(); |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | /** |
| 452 | * Handle mouse release events. |
| 453 | * |
| 454 | * @param mouse mouse button release event |
| 455 | */ |
| 456 | @Override |
| 457 | public void onMouseUp(final TMouseEvent mouse) { |
| 458 | // Use TWidget's code to pass the event to the children. |
| 459 | super.onMouseDown(mouse); |
| 460 | |
| 461 | if (isActive()) { |
| 462 | // Let the table know that I was activated. |
| 463 | ((TTableWidget) getParent()).selectedRow = row; |
| 464 | ((TTableWidget) getParent()).selectedColumn = column; |
| 465 | ((TTableWidget) getParent()).alignGrid(); |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | /** |
| 470 | * Handle keystrokes. |
| 471 | * |
| 472 | * @param keypress keystroke event |
| 473 | */ |
| 474 | @Override |
| 475 | public void onKeypress(final TKeypressEvent keypress) { |
| 476 | // System.err.println("Cell onKeypress: " + keypress); |
| 477 | |
| 478 | if (isEditing) { |
| 479 | if (keypress.equals(kbEsc)) { |
| 480 | // ESC cancels the edit. |
| 481 | field.setText(fieldText); |
| 482 | isEditing = false; |
| 483 | field.setEnabled(false); |
| 484 | return; |
| 485 | } |
| 486 | if (keypress.equals(kbEnter)) { |
| 487 | // Enter ends editing. |
| 488 | fieldText = field.getText(); |
| 489 | isEditing = false; |
| 490 | field.setEnabled(false); |
| 491 | return; |
| 492 | } |
| 493 | // Pass down to field. |
| 494 | super.onKeypress(keypress); |
| 495 | } |
| 496 | |
| 497 | if (keypress.equals(kbEnter) || keypress.equals(kbF2)) { |
| 498 | // Enter or F2 starts editing. |
| 499 | fieldText = field.getText(); |
| 500 | isEditing = true; |
| 501 | field.setEnabled(true); |
| 502 | activate(field); |
| 503 | return; |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | // -------------------------------------------------------------------- |
| 508 | // TWidget ------------------------------------------------------------ |
| 509 | // -------------------------------------------------------------------- |
| 510 | |
| 511 | /** |
| 512 | * Draw this cell. |
| 513 | */ |
| 514 | @Override |
| 515 | public void draw() { |
| 516 | TTableWidget table = (TTableWidget) getParent(); |
| 517 | |
| 518 | if (isAbsoluteActive()) { |
| 519 | if (isEditing) { |
| 520 | field.setActiveColorKey("tfield.active"); |
| 521 | field.setInactiveColorKey("tfield.inactive"); |
| 522 | } else { |
| 523 | field.setActiveColorKey("ttable.selected"); |
| 524 | field.setInactiveColorKey("ttable.selected"); |
| 525 | } |
| 526 | } else if (((table.selectedColumn == column) |
| 527 | && ((table.selectedRow == row) |
| 528 | || (table.highlightColumn == true))) |
| 529 | || ((table.selectedRow == row) |
| 530 | && ((table.selectedColumn == column) |
| 531 | || (table.highlightRow == true))) |
| 532 | ) { |
| 533 | field.setActiveColorKey("ttable.active"); |
| 534 | field.setInactiveColorKey("ttable.active"); |
| 535 | } else { |
| 536 | field.setActiveColorKey("ttable.active"); |
| 537 | field.setInactiveColorKey("ttable.inactive"); |
| 538 | } |
| 539 | |
| 540 | assert (isVisible() == true); |
| 541 | |
| 542 | super.draw(); |
| 543 | } |
| 544 | |
| 545 | // -------------------------------------------------------------------- |
| 546 | // TTable.Cell -------------------------------------------------------- |
| 547 | // -------------------------------------------------------------------- |
| 548 | |
| 549 | /** |
| 550 | * Get field text. |
| 551 | * |
| 552 | * @return field text |
| 553 | */ |
| 554 | public final String getText() { |
| 555 | return field.getText(); |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * Set field text. |
| 560 | * |
| 561 | * @param text the new field text |
| 562 | */ |
| 563 | public void setText(final String text) { |
| 564 | field.setText(text); |
| 565 | } |
| 566 | |
| 567 | } |
| 568 | |
| 569 | // ------------------------------------------------------------------------ |
| 570 | // Constructors ----------------------------------------------------------- |
| 571 | // ------------------------------------------------------------------------ |
| 572 | |
| 573 | /** |
| 574 | * Public constructor. |
| 575 | * |
| 576 | * @param parent parent widget |
| 577 | * @param x column relative to parent |
| 578 | * @param y row relative to parent |
| 579 | * @param width width of widget |
| 580 | * @param height height of widget |
| 581 | */ |
| 582 | public TTableWidget(final TWidget parent, final int x, final int y, |
| 583 | final int width, final int height) { |
| 584 | |
| 585 | super(parent, x, y, width, height); |
| 586 | |
| 587 | // Initialize the starting row and column. |
| 588 | rows.add(new Row(0)); |
| 589 | columns.add(new Column(0)); |
| 590 | |
| 591 | // Place a grid of cells that fit in this space. |
| 592 | int row = 0; |
| 593 | for (int i = 0; i < height + EXTRA_ROWS; i += rows.get(0).height) { |
| 594 | int column = 0; |
| 595 | for (int j = 0; j < width + EXTRA_COLUMNS; |
| 596 | j += columns.get(0).width) { |
| 597 | |
| 598 | Cell cell = new Cell(this, 0, 0, /* j, i, */ columns.get(0).width, |
| 599 | rows.get(0).height, column, row); |
| 600 | |
| 601 | // DEBUG: set a grid of cell index labels |
| 602 | // TODO: remove this |
| 603 | cell.setText("" + row + " " + column); |
| 604 | rows.get(row).add(cell); |
| 605 | columns.get(column).add(cell); |
| 606 | if ((i == 0) && |
| 607 | (j + columns.get(0).width < width + EXTRA_COLUMNS) |
| 608 | ) { |
| 609 | columns.add(new Column(column + 1)); |
| 610 | } |
| 611 | column++; |
| 612 | } |
| 613 | if (i + rows.get(0).height < height + EXTRA_ROWS) { |
| 614 | rows.add(new Row(row + 1)); |
| 615 | } |
| 616 | row++; |
| 617 | } |
| 618 | for (int i = 0; i < rows.size(); i++) { |
| 619 | rows.get(i).setY(i + (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0)); |
| 620 | } |
| 621 | for (int j = 0; j < columns.size(); j++) { |
| 622 | columns.get(j).setX((j * COLUMN_DEFAULT_WIDTH) + |
| 623 | (showRowLabels ? ROW_LABEL_WIDTH : 0)); |
| 624 | } |
| 625 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 626 | |
| 627 | alignGrid(); |
| 628 | |
| 629 | // Set the menu to match the flags. |
| 630 | getApplication().getMenuItem(TMenu.MID_TABLE_VIEW_ROW_LABELS). |
| 631 | setChecked(showRowLabels); |
| 632 | getApplication().getMenuItem(TMenu.MID_TABLE_VIEW_COLUMN_LABELS). |
| 633 | setChecked(showColumnLabels); |
| 634 | getApplication().getMenuItem(TMenu.MID_TABLE_VIEW_HIGHLIGHT_ROW). |
| 635 | setChecked(highlightRow); |
| 636 | getApplication().getMenuItem(TMenu.MID_TABLE_VIEW_HIGHLIGHT_COLUMN). |
| 637 | setChecked(highlightColumn); |
| 638 | |
| 639 | |
| 640 | } |
| 641 | |
| 642 | // ------------------------------------------------------------------------ |
| 643 | // Event handlers --------------------------------------------------------- |
| 644 | // ------------------------------------------------------------------------ |
| 645 | |
| 646 | /** |
| 647 | * Handle mouse press events. |
| 648 | * |
| 649 | * @param mouse mouse button press event |
| 650 | */ |
| 651 | @Override |
| 652 | public void onMouseDown(final TMouseEvent mouse) { |
| 653 | if (mouse.isMouseWheelUp() || mouse.isMouseWheelDown()) { |
| 654 | // Treat wheel up/down as 3 up/down |
| 655 | TKeypressEvent keyEvent; |
| 656 | if (mouse.isMouseWheelUp()) { |
| 657 | keyEvent = new TKeypressEvent(kbUp); |
| 658 | } else { |
| 659 | keyEvent = new TKeypressEvent(kbDown); |
| 660 | } |
| 661 | for (int i = 0; i < 3; i++) { |
| 662 | onKeypress(keyEvent); |
| 663 | } |
| 664 | return; |
| 665 | } |
| 666 | |
| 667 | // Use TWidget's code to pass the event to the children. |
| 668 | super.onMouseDown(mouse); |
| 669 | } |
| 670 | |
| 671 | /** |
| 672 | * Handle keystrokes. |
| 673 | * |
| 674 | * @param keypress keystroke event |
| 675 | */ |
| 676 | @Override |
| 677 | public void onKeypress(final TKeypressEvent keypress) { |
| 678 | if (keypress.equals(kbTab) |
| 679 | || keypress.equals(kbShiftTab) |
| 680 | ) { |
| 681 | // Squash tab and back-tab. They don't make sense in the TTable |
| 682 | // grid context. |
| 683 | return; |
| 684 | } |
| 685 | |
| 686 | // If editing, pass to that cell and do nothing else. |
| 687 | if (getSelectedCell().isEditing) { |
| 688 | super.onKeypress(keypress); |
| 689 | return; |
| 690 | } |
| 691 | |
| 692 | if (keypress.equals(kbLeft)) { |
| 693 | // Left |
| 694 | if (selectedColumn > 0) { |
| 695 | selectedColumn--; |
| 696 | } |
| 697 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 698 | } else if (keypress.equals(kbRight)) { |
| 699 | // Right |
| 700 | if (selectedColumn < columns.size() - 1) { |
| 701 | selectedColumn++; |
| 702 | } |
| 703 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 704 | } else if (keypress.equals(kbUp)) { |
| 705 | // Up |
| 706 | if (selectedRow > 0) { |
| 707 | selectedRow--; |
| 708 | } |
| 709 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 710 | } else if (keypress.equals(kbDown)) { |
| 711 | // Down |
| 712 | if (selectedRow < rows.size() - 1) { |
| 713 | selectedRow++; |
| 714 | } |
| 715 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 716 | } else if (keypress.equals(kbHome)) { |
| 717 | // Home - leftmost column |
| 718 | selectedColumn = 0; |
| 719 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 720 | } else if (keypress.equals(kbEnd)) { |
| 721 | // End - rightmost column |
| 722 | selectedColumn = columns.size() - 1; |
| 723 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 724 | } else if (keypress.equals(kbPgUp)) { |
| 725 | // PgUp - Treat like multiple up |
| 726 | for (int i = 0; i < getHeight() - 2; i++) { |
| 727 | if (selectedRow > 0) { |
| 728 | selectedRow--; |
| 729 | } |
| 730 | } |
| 731 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 732 | } else if (keypress.equals(kbPgDn)) { |
| 733 | // PgDn - Treat like multiple up |
| 734 | for (int i = 0; i < getHeight() - 2; i++) { |
| 735 | if (selectedRow < rows.size() - 1) { |
| 736 | selectedRow++; |
| 737 | } |
| 738 | } |
| 739 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 740 | } else if (keypress.equals(kbCtrlHome)) { |
| 741 | // Ctrl-Home - go to top-left |
| 742 | selectedRow = 0; |
| 743 | selectedColumn = 0; |
| 744 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 745 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 746 | } else if (keypress.equals(kbCtrlEnd)) { |
| 747 | // Ctrl-End - go to bottom-right |
| 748 | selectedRow = rows.size() - 1; |
| 749 | selectedColumn = columns.size() - 1; |
| 750 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 751 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 752 | } else { |
| 753 | // Pass to the Cell. |
| 754 | super.onKeypress(keypress); |
| 755 | } |
| 756 | |
| 757 | // We may have scrolled off screen. Reset positions as needed to |
| 758 | // make the newly selected cell visible. |
| 759 | alignGrid(); |
| 760 | } |
| 761 | |
| 762 | /** |
| 763 | * Handle widget resize events. |
| 764 | * |
| 765 | * @param event resize event |
| 766 | */ |
| 767 | @Override |
| 768 | public void onResize(final TResizeEvent event) { |
| 769 | super.onResize(event); |
| 770 | |
| 771 | alignGrid(); |
| 772 | } |
| 773 | |
| 774 | /** |
| 775 | * Handle posted menu events. |
| 776 | * |
| 777 | * @param menu menu event |
| 778 | */ |
| 779 | @Override |
| 780 | public void onMenu(final TMenuEvent menu) { |
| 781 | switch (menu.getId()) { |
| 782 | case TMenu.MID_TABLE_VIEW_ROW_LABELS: |
| 783 | showRowLabels = getApplication().getMenuItem(menu.getId()).getChecked(); |
| 784 | break; |
| 785 | case TMenu.MID_TABLE_VIEW_COLUMN_LABELS: |
| 786 | showColumnLabels = getApplication().getMenuItem(menu.getId()).getChecked(); |
| 787 | break; |
| 788 | case TMenu.MID_TABLE_VIEW_HIGHLIGHT_ROW: |
| 789 | highlightRow = getApplication().getMenuItem(menu.getId()).getChecked(); |
| 790 | break; |
| 791 | case TMenu.MID_TABLE_VIEW_HIGHLIGHT_COLUMN: |
| 792 | highlightColumn = getApplication().getMenuItem(menu.getId()).getChecked(); |
| 793 | break; |
| 794 | case TMenu.MID_TABLE_BORDER_NONE: |
| 795 | topBorder = Border.NONE; |
| 796 | leftBorder = Border.NONE; |
| 797 | for (int i = 0; i < columns.size(); i++) { |
| 798 | columns.get(i).rightBorder = Border.NONE; |
| 799 | } |
| 800 | for (int i = 0; i < rows.size(); i++) { |
| 801 | rows.get(i).bottomBorder = Border.NONE; |
| 802 | rows.get(i).height = 1; |
| 803 | } |
| 804 | break; |
| 805 | case TMenu.MID_TABLE_BORDER_ALL: |
| 806 | topBorder = Border.SINGLE; |
| 807 | leftBorder = Border.SINGLE; |
| 808 | for (int i = 0; i < columns.size(); i++) { |
| 809 | columns.get(i).rightBorder = Border.SINGLE; |
| 810 | } |
| 811 | for (int i = 0; i < rows.size(); i++) { |
| 812 | rows.get(i).bottomBorder = Border.SINGLE; |
| 813 | rows.get(i).height = 2; |
| 814 | } |
| 815 | break; |
| 816 | case TMenu.MID_TABLE_BORDER_CELL_NONE: |
| 817 | if (selectedRow == 0) { |
| 818 | topBorder = Border.NONE; |
| 819 | } |
| 820 | if (selectedColumn == 0) { |
| 821 | leftBorder = Border.NONE; |
| 822 | } |
| 823 | columns.get(selectedColumn).rightBorder = Border.NONE; |
| 824 | rows.get(selectedRow).bottomBorder = Border.NONE; |
| 825 | rows.get(selectedRow).height = 1; |
| 826 | break; |
| 827 | case TMenu.MID_TABLE_BORDER_CELL_ALL: |
| 828 | if (selectedRow == 0) { |
| 829 | topBorder = Border.SINGLE; |
| 830 | } |
| 831 | if (selectedColumn == 0) { |
| 832 | leftBorder = Border.SINGLE; |
| 833 | } |
| 834 | columns.get(selectedColumn).rightBorder = Border.SINGLE; |
| 835 | rows.get(selectedRow).bottomBorder = Border.SINGLE; |
| 836 | rows.get(selectedRow).height = 2; |
| 837 | break; |
| 838 | case TMenu.MID_TABLE_BORDER_RIGHT: |
| 839 | columns.get(selectedColumn).rightBorder = Border.SINGLE; |
| 840 | break; |
| 841 | case TMenu.MID_TABLE_BORDER_LEFT: |
| 842 | if (selectedColumn == 0) { |
| 843 | leftBorder = Border.SINGLE; |
| 844 | } else { |
| 845 | columns.get(selectedColumn - 1).rightBorder = Border.SINGLE; |
| 846 | } |
| 847 | break; |
| 848 | case TMenu.MID_TABLE_BORDER_TOP: |
| 849 | if (selectedRow == 0) { |
| 850 | topBorder = Border.SINGLE; |
| 851 | } else { |
| 852 | rows.get(selectedRow - 1).bottomBorder = Border.SINGLE; |
| 853 | rows.get(selectedRow - 1).height = 2; |
| 854 | } |
| 855 | break; |
| 856 | case TMenu.MID_TABLE_BORDER_BOTTOM: |
| 857 | rows.get(selectedRow).bottomBorder = Border.SINGLE; |
| 858 | rows.get(selectedRow).height = 2; |
| 859 | break; |
| 860 | case TMenu.MID_TABLE_BORDER_DOUBLE_BOTTOM: |
| 861 | rows.get(selectedRow).bottomBorder = Border.DOUBLE; |
| 862 | rows.get(selectedRow).height = 2; |
| 863 | break; |
| 864 | case TMenu.MID_TABLE_BORDER_THICK_BOTTOM: |
| 865 | rows.get(selectedRow).bottomBorder = Border.THICK; |
| 866 | rows.get(selectedRow).height = 2; |
| 867 | break; |
| 868 | case TMenu.MID_TABLE_DELETE_LEFT: |
| 869 | case TMenu.MID_TABLE_DELETE_UP: |
| 870 | case TMenu.MID_TABLE_DELETE_ROW: |
| 871 | case TMenu.MID_TABLE_DELETE_COLUMN: |
| 872 | case TMenu.MID_TABLE_INSERT_LEFT: |
| 873 | case TMenu.MID_TABLE_INSERT_RIGHT: |
| 874 | case TMenu.MID_TABLE_INSERT_ABOVE: |
| 875 | case TMenu.MID_TABLE_INSERT_BELOW: |
| 876 | break; |
| 877 | case TMenu.MID_TABLE_COLUMN_NARROW: |
| 878 | columns.get(selectedColumn).width--; |
| 879 | for (Cell cell: getSelectedColumn().cells) { |
| 880 | cell.setWidth(columns.get(selectedColumn).width); |
| 881 | cell.field.setWidth(columns.get(selectedColumn).width); |
| 882 | } |
| 883 | for (int i = selectedColumn + 1; i < columns.size(); i++) { |
| 884 | columns.get(i).setX(columns.get(i).getX() - 1); |
| 885 | } |
| 886 | break; |
| 887 | case TMenu.MID_TABLE_COLUMN_WIDEN: |
| 888 | columns.get(selectedColumn).width++; |
| 889 | for (Cell cell: getSelectedColumn().cells) { |
| 890 | cell.setWidth(columns.get(selectedColumn).width); |
| 891 | cell.field.setWidth(columns.get(selectedColumn).width); |
| 892 | } |
| 893 | for (int i = selectedColumn + 1; i < columns.size(); i++) { |
| 894 | columns.get(i).setX(columns.get(i).getX() + 1); |
| 895 | } |
| 896 | break; |
| 897 | case TMenu.MID_TABLE_FILE_SAVE_CSV: |
| 898 | // TODO |
| 899 | break; |
| 900 | case TMenu.MID_TABLE_FILE_SAVE_TEXT: |
| 901 | // TODO |
| 902 | break; |
| 903 | default: |
| 904 | super.onMenu(menu); |
| 905 | } |
| 906 | |
| 907 | // Fix/redraw the display. |
| 908 | alignGrid(); |
| 909 | } |
| 910 | |
| 911 | // ------------------------------------------------------------------------ |
| 912 | // TWidget ---------------------------------------------------------------- |
| 913 | // ------------------------------------------------------------------------ |
| 914 | |
| 915 | /** |
| 916 | * Draw the table row/column labels, and borders. |
| 917 | */ |
| 918 | @Override |
| 919 | public void draw() { |
| 920 | CellAttributes labelColor = getTheme().getColor("ttable.label"); |
| 921 | CellAttributes labelColorSelected = getTheme().getColor("ttable.label.selected"); |
| 922 | CellAttributes borderColor = getTheme().getColor("ttable.border"); |
| 923 | |
| 924 | // Column labels. |
| 925 | if (showColumnLabels == true) { |
| 926 | for (int i = left; i < columns.size(); i++) { |
| 927 | if (columns.get(i).get(top).isVisible() == false) { |
| 928 | break; |
| 929 | } |
| 930 | putStringXY(columns.get(i).get(top).getX(), 0, |
| 931 | String.format(" %-" + |
| 932 | (columns.get(i).width - 2) |
| 933 | + "s ", columns.get(i).label), |
| 934 | (i == selectedColumn ? labelColorSelected : labelColor)); |
| 935 | } |
| 936 | } |
| 937 | |
| 938 | // Row labels. |
| 939 | if (showRowLabels == true) { |
| 940 | for (int i = top; i < rows.size(); i++) { |
| 941 | if (rows.get(i).get(left).isVisible() == false) { |
| 942 | break; |
| 943 | } |
| 944 | putStringXY(0, rows.get(i).get(left).getY(), |
| 945 | String.format(" %-6s ", rows.get(i).label), |
| 946 | (i == selectedRow ? labelColorSelected : labelColor)); |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | // Draw vertical borders. |
| 951 | if (leftBorder == Border.SINGLE) { |
| 952 | vLineXY((showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 953 | (topBorder == Border.NONE ? 0 : 1) + |
| 954 | (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0), |
| 955 | getHeight(), '\u2502', borderColor); |
| 956 | } |
| 957 | for (int i = left; i < columns.size(); i++) { |
| 958 | if (columns.get(i).get(top).isVisible() == false) { |
| 959 | break; |
| 960 | } |
| 961 | if (columns.get(i).rightBorder == Border.SINGLE) { |
| 962 | vLineXY(columns.get(i).getX() + columns.get(i).width, |
| 963 | (topBorder == Border.NONE ? 0 : 1) + |
| 964 | (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0), |
| 965 | getHeight(), '\u2502', borderColor); |
| 966 | } |
| 967 | } |
| 968 | |
| 969 | // Draw horizontal borders. |
| 970 | if (topBorder == Border.SINGLE) { |
| 971 | hLineXY((showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 972 | (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0), |
| 973 | getWidth(), '\u2500', borderColor); |
| 974 | } |
| 975 | for (int i = top; i < rows.size(); i++) { |
| 976 | if (rows.get(i).get(left).isVisible() == false) { |
| 977 | break; |
| 978 | } |
| 979 | if (rows.get(i).bottomBorder == Border.SINGLE) { |
| 980 | hLineXY((leftBorder == Border.NONE ? 0 : 1) + |
| 981 | (showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 982 | rows.get(i).getY() + rows.get(i).height - 1, |
| 983 | getWidth(), '\u2500', borderColor); |
| 984 | } else if (rows.get(i).bottomBorder == Border.DOUBLE) { |
| 985 | hLineXY((leftBorder == Border.NONE ? 0 : 1) + |
| 986 | (showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 987 | rows.get(i).getY() + rows.get(i).height - 1, |
| 988 | getWidth(), '\u2550', borderColor); |
| 989 | } else if (rows.get(i).bottomBorder == Border.THICK) { |
| 990 | hLineXY((leftBorder == Border.NONE ? 0 : 1) + |
| 991 | (showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 992 | rows.get(i).getY() + rows.get(i).height - 1, |
| 993 | getWidth(), '\u2501', borderColor); |
| 994 | } |
| 995 | } |
| 996 | // Top-left corner if needed |
| 997 | if ((topBorder == Border.SINGLE) && (leftBorder == Border.SINGLE)) { |
| 998 | putCharXY((showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 999 | (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0), |
| 1000 | '\u250c', borderColor); |
| 1001 | } |
| 1002 | |
| 1003 | // Now draw the correct corners |
| 1004 | for (int i = top; i < rows.size(); i++) { |
| 1005 | if (rows.get(i).get(left).isVisible() == false) { |
| 1006 | break; |
| 1007 | } |
| 1008 | for (int j = left; j < columns.size(); j++) { |
| 1009 | if (columns.get(j).get(i).isVisible() == false) { |
| 1010 | break; |
| 1011 | } |
| 1012 | if ((i == top) && (topBorder == Border.SINGLE) |
| 1013 | && (columns.get(j).rightBorder == Border.SINGLE) |
| 1014 | ) { |
| 1015 | // Top tee |
| 1016 | putCharXY(columns.get(j).getX() + columns.get(j).width, |
| 1017 | (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0), |
| 1018 | '\u252c', borderColor); |
| 1019 | } |
| 1020 | if ((j == left) && (leftBorder == Border.SINGLE) |
| 1021 | && (rows.get(i).bottomBorder == Border.SINGLE) |
| 1022 | ) { |
| 1023 | // Left tee |
| 1024 | putCharXY((showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 1025 | rows.get(i).getY() + rows.get(i).height - 1, |
| 1026 | '\u251c', borderColor); |
| 1027 | } |
| 1028 | if ((columns.get(j).rightBorder == Border.SINGLE) |
| 1029 | && (rows.get(i).bottomBorder == Border.SINGLE) |
| 1030 | ) { |
| 1031 | // Intersection of single bars |
| 1032 | putCharXY(columns.get(j).getX() + columns.get(j).width, |
| 1033 | rows.get(i).getY() + rows.get(i).height - 1, |
| 1034 | '\u253c', borderColor); |
| 1035 | } |
| 1036 | if ((j == left) && (leftBorder == Border.SINGLE) |
| 1037 | && (rows.get(i).bottomBorder == Border.DOUBLE) |
| 1038 | ) { |
| 1039 | // Left tee: single bar vertical, double bar horizontal |
| 1040 | putCharXY((showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 1041 | rows.get(i).getY() + rows.get(i).height - 1, |
| 1042 | '\u255e', borderColor); |
| 1043 | } |
| 1044 | if ((j == left) && (leftBorder == Border.SINGLE) |
| 1045 | && (rows.get(i).bottomBorder == Border.THICK) |
| 1046 | ) { |
| 1047 | // Left tee: single bar vertical, thick bar horizontal |
| 1048 | putCharXY((showRowLabels ? ROW_LABEL_WIDTH : 0), |
| 1049 | rows.get(i).getY() + rows.get(i).height - 1, |
| 1050 | '\u251d', borderColor); |
| 1051 | } |
| 1052 | if ((columns.get(j).rightBorder == Border.SINGLE) |
| 1053 | && (rows.get(i).bottomBorder == Border.DOUBLE) |
| 1054 | ) { |
| 1055 | // Intersection: single bar vertical, double bar |
| 1056 | // horizontal |
| 1057 | putCharXY(columns.get(j).getX() + columns.get(j).width, |
| 1058 | rows.get(i).getY() + rows.get(i).height - 1, |
| 1059 | '\u256a', borderColor); |
| 1060 | } |
| 1061 | if ((columns.get(j).rightBorder == Border.SINGLE) |
| 1062 | && (rows.get(i).bottomBorder == Border.THICK) |
| 1063 | ) { |
| 1064 | // Intersection: single bar vertical, thick bar |
| 1065 | // horizontal |
| 1066 | putCharXY(columns.get(j).getX() + columns.get(j).width, |
| 1067 | rows.get(i).getY() + rows.get(i).height - 1, |
| 1068 | '\u253f', borderColor); |
| 1069 | } |
| 1070 | } |
| 1071 | } |
| 1072 | |
| 1073 | // Now draw the window borders. |
| 1074 | super.draw(); |
| 1075 | } |
| 1076 | |
| 1077 | // ------------------------------------------------------------------------ |
| 1078 | // TTable ----------------------------------------------------------------- |
| 1079 | // ------------------------------------------------------------------------ |
| 1080 | |
| 1081 | /** |
| 1082 | * Get the currently-selected cell. |
| 1083 | * |
| 1084 | * @return the selected cell |
| 1085 | */ |
| 1086 | public Cell getSelectedCell() { |
| 1087 | assert (rows.get(selectedRow) != null); |
| 1088 | assert (rows.get(selectedRow).get(selectedColumn) != null); |
| 1089 | assert (columns.get(selectedColumn) != null); |
| 1090 | assert (columns.get(selectedColumn).get(selectedRow) != null); |
| 1091 | assert (rows.get(selectedRow).get(selectedColumn) == |
| 1092 | columns.get(selectedColumn).get(selectedRow)); |
| 1093 | |
| 1094 | return (columns.get(selectedColumn).get(selectedRow)); |
| 1095 | } |
| 1096 | |
| 1097 | /** |
| 1098 | * Get the currently-selected column. |
| 1099 | * |
| 1100 | * @return the selected column |
| 1101 | */ |
| 1102 | public Column getSelectedColumn() { |
| 1103 | assert (selectedColumn >= 0); |
| 1104 | assert (columns.size() > selectedColumn); |
| 1105 | assert (columns.get(selectedColumn) != null); |
| 1106 | return columns.get(selectedColumn); |
| 1107 | } |
| 1108 | |
| 1109 | /** |
| 1110 | * Get the currently-selected row. |
| 1111 | * |
| 1112 | * @return the selected row |
| 1113 | */ |
| 1114 | public Row getSelectedRow() { |
| 1115 | assert (selectedRow >= 0); |
| 1116 | assert (rows.size() > selectedRow); |
| 1117 | assert (rows.get(selectedRow) != null); |
| 1118 | return rows.get(selectedRow); |
| 1119 | } |
| 1120 | |
| 1121 | /** |
| 1122 | * Get the currently-selected column number. 0 is the left-most column. |
| 1123 | * |
| 1124 | * @return the selected column number |
| 1125 | */ |
| 1126 | public int getSelectedColumnNumber() { |
| 1127 | return selectedColumn; |
| 1128 | } |
| 1129 | |
| 1130 | /** |
| 1131 | * Set the currently-selected column number. 0 is the left-most column. |
| 1132 | * |
| 1133 | * @param column the column number to select |
| 1134 | */ |
| 1135 | public void setSelectedColumnNumber(final int column) { |
| 1136 | if ((column < 0) || (column > columns.size() - 1)) { |
| 1137 | throw new IndexOutOfBoundsException("Column count is " + |
| 1138 | columns.size() + ", requested index " + column); |
| 1139 | } |
| 1140 | selectedColumn = column; |
| 1141 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 1142 | alignGrid(); |
| 1143 | } |
| 1144 | |
| 1145 | /** |
| 1146 | * Get the currently-selected row number. 0 is the top-most row. |
| 1147 | * |
| 1148 | * @return the selected row number |
| 1149 | */ |
| 1150 | public int getSelectedRowNumber() { |
| 1151 | return selectedRow; |
| 1152 | } |
| 1153 | |
| 1154 | /** |
| 1155 | * Set the currently-selected row number. 0 is the left-most column. |
| 1156 | * |
| 1157 | * @param row the row number to select |
| 1158 | */ |
| 1159 | public void setSelectedRowNumber(final int row) { |
| 1160 | if ((row < 0) || (row > rows.size() - 1)) { |
| 1161 | throw new IndexOutOfBoundsException("Row count is " + |
| 1162 | rows.size() + ", requested index " + row); |
| 1163 | } |
| 1164 | selectedRow = row; |
| 1165 | activate(columns.get(selectedColumn).get(selectedRow)); |
| 1166 | alignGrid(); |
| 1167 | } |
| 1168 | |
| 1169 | /** |
| 1170 | * Get the number of columns. |
| 1171 | * |
| 1172 | * @return the number of columns |
| 1173 | */ |
| 1174 | public int getColumnCount() { |
| 1175 | return columns.size(); |
| 1176 | } |
| 1177 | |
| 1178 | /** |
| 1179 | * Get the number of rows. |
| 1180 | * |
| 1181 | * @return the number of rows |
| 1182 | */ |
| 1183 | public int getRowCount() { |
| 1184 | return rows.size(); |
| 1185 | } |
| 1186 | |
| 1187 | /** |
| 1188 | * Align the grid so that the selected cell is fully visible. |
| 1189 | */ |
| 1190 | private void alignGrid() { |
| 1191 | int viewColumns = getWidth(); |
| 1192 | if (showRowLabels == true) { |
| 1193 | viewColumns -= ROW_LABEL_WIDTH; |
| 1194 | } |
| 1195 | if (leftBorder != Border.NONE) { |
| 1196 | viewColumns--; |
| 1197 | } |
| 1198 | int viewRows = getHeight(); |
| 1199 | if (showColumnLabels == true) { |
| 1200 | viewRows -= COLUMN_LABEL_HEIGHT; |
| 1201 | } |
| 1202 | if (topBorder != Border.NONE) { |
| 1203 | viewRows--; |
| 1204 | } |
| 1205 | |
| 1206 | // If we pushed left or right, adjust the box to include the new |
| 1207 | // selected cell. |
| 1208 | if (selectedColumn < left) { |
| 1209 | left = selectedColumn - 1; |
| 1210 | } |
| 1211 | if (left < 0) { |
| 1212 | left = 0; |
| 1213 | } |
| 1214 | if (selectedRow < top) { |
| 1215 | top = selectedRow - 1; |
| 1216 | } |
| 1217 | if (top < 0) { |
| 1218 | top = 0; |
| 1219 | } |
| 1220 | |
| 1221 | /* |
| 1222 | * viewColumns and viewRows now contain the available columns and |
| 1223 | * rows available to view the selected cell. We adjust left and top |
| 1224 | * to ensure the selected cell is within view, and then make all |
| 1225 | * cells outside the box between (left, top) and (right, bottom) |
| 1226 | * invisible. |
| 1227 | * |
| 1228 | * We need to calculate right and bottom now. |
| 1229 | */ |
| 1230 | int right = left; |
| 1231 | |
| 1232 | boolean done = false; |
| 1233 | while (!done) { |
| 1234 | int rightCellX = (showRowLabels ? ROW_LABEL_WIDTH : 0); |
| 1235 | if (leftBorder != Border.NONE) { |
| 1236 | rightCellX++; |
| 1237 | } |
| 1238 | int maxCellX = rightCellX + viewColumns; |
| 1239 | right = left; |
| 1240 | boolean selectedIsVisible = false; |
| 1241 | int selectedX = 0; |
| 1242 | for (int x = left; x < columns.size(); x++) { |
| 1243 | if (x == selectedColumn) { |
| 1244 | selectedX = rightCellX; |
| 1245 | if (selectedX + columns.get(x).width + 1 <= maxCellX) { |
| 1246 | selectedIsVisible = true; |
| 1247 | } |
| 1248 | } |
| 1249 | rightCellX += columns.get(x).width + 1; |
| 1250 | if (rightCellX >= maxCellX) { |
| 1251 | break; |
| 1252 | } |
| 1253 | right++; |
| 1254 | } |
| 1255 | if (right < selectedColumn) { |
| 1256 | // selectedColumn is outside the view range. Push left over, |
| 1257 | // and calculate again. |
| 1258 | left++; |
| 1259 | } else if (left == selectedColumn) { |
| 1260 | // selectedColumn doesn't fit inside the view range, but we |
| 1261 | // can't go over any further either. Bail out. |
| 1262 | done = true; |
| 1263 | } else if (selectedIsVisible == false) { |
| 1264 | // selectedColumn doesn't fit inside the view range, continue |
| 1265 | // on. |
| 1266 | left++; |
| 1267 | } else { |
| 1268 | // selectedColumn is fully visible, all done. |
| 1269 | assert (selectedIsVisible == true); |
| 1270 | done = true; |
| 1271 | } |
| 1272 | |
| 1273 | } // while (!done) |
| 1274 | |
| 1275 | // We have the left/right range correct, set cell visibility and |
| 1276 | // column X positions. |
| 1277 | int leftCellX = showRowLabels ? ROW_LABEL_WIDTH : 0; |
| 1278 | if (leftBorder != Border.NONE) { |
| 1279 | leftCellX++; |
| 1280 | } |
| 1281 | for (int x = 0; x < columns.size(); x++) { |
| 1282 | if ((x < left) || (x > right)) { |
| 1283 | for (int i = 0; i < rows.size(); i++) { |
| 1284 | columns.get(x).get(i).setVisible(false); |
| 1285 | columns.get(x).setX(getWidth() + 1); |
| 1286 | } |
| 1287 | continue; |
| 1288 | } |
| 1289 | for (int i = 0; i < rows.size(); i++) { |
| 1290 | columns.get(x).get(i).setVisible(true); |
| 1291 | } |
| 1292 | columns.get(x).setX(leftCellX); |
| 1293 | leftCellX += columns.get(x).width + 1; |
| 1294 | } |
| 1295 | |
| 1296 | int bottom = top; |
| 1297 | |
| 1298 | done = false; |
| 1299 | while (!done) { |
| 1300 | int bottomCellY = (showColumnLabels ? COLUMN_LABEL_HEIGHT : 0); |
| 1301 | if (topBorder != Border.NONE) { |
| 1302 | bottomCellY++; |
| 1303 | } |
| 1304 | int maxCellY = bottomCellY + viewRows; |
| 1305 | bottom = top; |
| 1306 | for (int y = top; y < rows.size(); y++) { |
| 1307 | bottomCellY += rows.get(y).height; |
| 1308 | if (bottomCellY >= maxCellY) { |
| 1309 | break; |
| 1310 | } |
| 1311 | bottom++; |
| 1312 | } |
| 1313 | if (bottom < selectedRow) { |
| 1314 | // selectedRow is outside the view range. Push top down, and |
| 1315 | // calculate again. |
| 1316 | top++; |
| 1317 | } else { |
| 1318 | // selectedRow is inside the view range, done. |
| 1319 | done = true; |
| 1320 | } |
| 1321 | } // while (!done) |
| 1322 | |
| 1323 | // We have the top/bottom range correct, set cell visibility and |
| 1324 | // row Y positions. |
| 1325 | int topCellY = showColumnLabels ? COLUMN_LABEL_HEIGHT : 0; |
| 1326 | if (topBorder != Border.NONE) { |
| 1327 | topCellY++; |
| 1328 | } |
| 1329 | for (int y = 0; y < rows.size(); y++) { |
| 1330 | if ((y < top) || (y > bottom)) { |
| 1331 | for (int i = 0; i < columns.size(); i++) { |
| 1332 | rows.get(y).get(i).setVisible(false); |
| 1333 | } |
| 1334 | rows.get(y).setY(getHeight() + 1); |
| 1335 | continue; |
| 1336 | } |
| 1337 | for (int i = 0; i < columns.size(); i++) { |
| 1338 | rows.get(y).get(i).setVisible(true); |
| 1339 | } |
| 1340 | rows.get(y).setY(topCellY); |
| 1341 | topCellY += rows.get(y).height; |
| 1342 | } |
| 1343 | |
| 1344 | } |
| 1345 | |
| 1346 | /** |
| 1347 | * Save contents to file. |
| 1348 | * |
| 1349 | * @param filename file to save to |
| 1350 | * @throws IOException if a java.io operation throws |
| 1351 | */ |
| 1352 | public void saveToFilename(final String filename) throws IOException { |
| 1353 | // TODO |
| 1354 | } |
| 1355 | |
| 1356 | } |