src/insets/insetcollapsable.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *          Copyright 1998-2001 The LyX Team.
   7  *
   8  * ======================================================
   9  */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "insetcollapsable.h"
  18 #include "gettext.h"
  19 #include "lyxfont.h"
  20 #include "BufferView.h"
  21 #include "Painter.h"
  22 #include "insets/insettext.h"
  23 #include "support/LOstream.h"
  24 #include "support/lstrings.h"
  25 #include "debug.h"
  26 #include "lyxtext.h"
  27 #include "font.h"
  28 #include "lyxlex.h"
  29
  30 class LyXText;
  31
  32 using std::ostream;
  33 using std::endl;
  34 using std::max;
  35
  36
  37 InsetCollapsable::InsetCollapsable(bool collapsed)
  38         : UpdatableInset(), collapsed_(collapsed),
  39           button_length(0), button_top_y(0), button_bottom_y(0),
  40           need_update(NONE), label("Label"),
  41 #if 0
  42         autocollapse(false),
  43 #endif
  44           oldWidth(0), in_update(false)
  45 {
  46         inset.setOwner(this);
  47         inset.setAutoBreakRows(true);
  48         inset.setDrawFrame(0, InsetText::ALWAYS);
  49         inset.setFrameColor(0, LColor::collapsableframe);
  50         setInsetName("Collapsable");
  51 }
  52
  53
  54 InsetCollapsable::InsetCollapsable(InsetCollapsable const & in, bool same_id)
  55         : UpdatableInset(in, same_id), collapsed_(in.collapsed_),
  56           framecolor(in.framecolor), labelfont(in.labelfont),
  57           button_length(0), button_top_y(0), button_bottom_y(0),
  58           need_update(NONE), label(in.label),
  59 #if 0
  60           autocollapse(in.autocollapse),
  61 #endif
  62           oldWidth(0), in_update(false)
  63 {
  64         inset.init(&(in.inset), same_id);
  65         inset.setOwner(this);
  66 }
  67
  68
  69 bool InsetCollapsable::insertInset(BufferView * bv, Inset * in)
  70 {
  71         if (!insetAllowed(in->lyxCode())) {
  72                 lyxerr << "InsetCollapsable::InsertInset: "
  73                         "Unable to insert inset." << endl;
  74                 return false;
  75         }
  76         return inset.insertInset(bv, in);
  77 }
  78
  79
  80 void InsetCollapsable::write(Buffer const * buf, ostream & os) const
  81 {
  82         os << "collapsed " << tostr(collapsed_) << "\n";
  83         inset.writeParagraphData(buf, os);
  84 }
  85
  86
  87
  88 void InsetCollapsable::read(Buffer const * buf, LyXLex & lex)
  89 {
  90         if (lex.isOK()) {
  91                 lex.next();
  92                 string const token = lex.getString();
  93                 if (token == "collapsed") {
  94                         lex.next();
  95                         collapsed_ = lex.getBool();
  96                 } else {
  97                         lyxerr << "InsetCollapsable::Read: Missing collapsed!"
  98                                << endl;
  99                         // Take countermeasures
 100                         lex.pushToken(token);
 101                 }
 102         }
 103         inset.read(buf, lex);
 104 }
 105
 106
 107 int InsetCollapsable::ascent_collapsed() const
 108 {
 109         int width = 0;
 110         int ascent = 0;
 111         int descent = 0;
 112         lyxfont::buttonText(label, labelfont, width, ascent, descent);
 113         return ascent;
 114 }
 115
 116
 117 int InsetCollapsable::descent_collapsed() const
 118 {
 119         int width = 0;
 120         int ascent = 0;
 121         int descent = 0;
 122         lyxfont::buttonText(label, labelfont, width, ascent, descent);
 123         return descent;
 124 }
 125
 126
 127 //int InsetCollapsable::width_collapsed(Painter & pain) const
 128 int InsetCollapsable::width_collapsed() const
 129 {
 130         int width;
 131         int ascent;
 132         int descent;
 133         lyxfont::buttonText(label, labelfont, width, ascent, descent);
 134         return width + (2*TEXT_TO_INSET_OFFSET);
 135 }
 136
 137
 138 int InsetCollapsable::ascent(BufferView * /*bv*/, LyXFont const &) const
 139 {
 140         return ascent_collapsed();
 141 }
 142
 143
 144 int InsetCollapsable::descent(BufferView * bv, LyXFont const & font) const
 145 {
 146         if (collapsed_)
 147                 return descent_collapsed();
 148
 149         return descent_collapsed()
 150                 + inset.descent(bv, font)
 151                 + inset.ascent(bv, font)
 152                 + TEXT_TO_BOTTOM_OFFSET;
 153 }
 154
 155
 156 int InsetCollapsable::width(BufferView * bv, LyXFont const & font) const
 157 {
 158         if (collapsed_)
 159                 return width_collapsed();
 160
 161         int widthCollapsed = width_collapsed();
 162
 163         return (inset.width(bv, font) > widthCollapsed) ?
 164                 inset.width(bv, font) : widthCollapsed;
 165 }
 166
 167
 168 void InsetCollapsable::draw_collapsed(Painter & pain,
 169                                       int baseline, float & x) const
 170 {
 171         pain.buttonText(int(x) + TEXT_TO_INSET_OFFSET,
 172                         baseline, label, labelfont);
 173         x += width_collapsed();
 174 }
 175
 176
 177 void InsetCollapsable::draw(BufferView * bv, LyXFont const & f,
 178                             int baseline, float & x, bool cleared) const
 179 {
 180         if (need_update != NONE) {
 181                 const_cast<InsetText *>(&inset)->update(bv, f, true);
 182                 bv->text->status(bv, LyXText::CHANGED_IN_DRAW);
 183                 need_update = NONE;
 184                 return;
 185         }
 186         if (nodraw())
 187                 return;
 188
 189         Painter & pain = bv->painter();
 190
 191         button_length = width_collapsed();
 192         button_top_y = -ascent(bv, f);
 193         button_bottom_y = -ascent(bv, f) + ascent_collapsed() +
 194                 descent_collapsed();
 195
 196         if (!isOpen()) {
 197                 draw_collapsed(pain, baseline, x);
 198                 x += TEXT_TO_INSET_OFFSET;
 199                 return;
 200         }
 201
 202         float old_x = x;
 203
 204         if (!owner())
 205                 x += static_cast<float>(scroll());
 206
 207         if (!cleared && (inset.need_update == InsetText::FULL ||
 208                          inset.need_update == InsetText::INIT ||
 209                          top_x != int(x) ||
 210                          top_baseline != baseline))
 211         {
 212                 // we don't need anymore to clear here we just have to tell
 213                 // the underlying LyXText that it should do the RowClear!
 214                 inset.setUpdateStatus(bv, InsetText::FULL);
 215                 bv->text->status(bv, LyXText::CHANGED_IN_DRAW);
 216                 return;
 217         }
 218
 219         top_x = int(x);
 220         topx_set = true;
 221         top_baseline = baseline;
 222
 223         int const bl = baseline - ascent(bv, f) + ascent_collapsed();
 224
 225         draw_collapsed(pain, bl, old_x);
 226         inset.draw(bv, f,
 227                            bl + descent_collapsed() + inset.ascent(bv, f),
 228                            x, cleared);
 229         if (x < (top_x + button_length + TEXT_TO_INSET_OFFSET))
 230                 x = top_x + button_length + TEXT_TO_INSET_OFFSET;
 231 }
 232
 233
 234 void InsetCollapsable::edit(BufferView * bv, int xp, int yp,
 235                             unsigned int button)
 236 {
 237         UpdatableInset::edit(bv, xp, yp, button);
 238
 239         if (collapsed_) {
 240                 collapsed_ = false;
 241                 // set this only here as it should be recollapsed only if
 242                 // it was already collapsed!
 243                 first_after_edit = true;
 244                 if (!bv->lockInset(this))
 245                         return;
 246                 bv->updateInset(this, false);
 247                 inset.edit(bv);
 248         } else {
 249                 if (!bv->lockInset(this))
 250                         return;
 251                 if (yp <= button_bottom_y) {
 252                         inset.edit(bv);
 253                 } else {
 254                         LyXFont font(LyXFont::ALL_SANE);
 255                         int yy = ascent(bv, font) + yp -
 256                                 (ascent_collapsed() +
 257                                  descent_collapsed() +
 258                                  inset.ascent(bv, font));
 259                         inset.edit(bv, xp, yy, button);
 260                 }
 261         }
 262 }
 263
 264
 265 void InsetCollapsable::edit(BufferView * bv, bool front)
 266 {
 267         UpdatableInset::edit(bv, front);
 268
 269         if (collapsed_) {
 270                 collapsed_ = false;
 271                 if (!bv->lockInset(this))
 272                         return;
 273                 inset.setUpdateStatus(bv, InsetText::FULL);
 274                 bv->updateInset(this, false);
 275                 inset.edit(bv, front);
 276         } else {
 277                 if (!bv->lockInset(this))
 278                         return;
 279                 inset.edit(bv, front);
 280         }
 281         first_after_edit = true;
 282 }
 283
 284
 285 Inset::EDITABLE InsetCollapsable::editable() const
 286 {
 287         if (collapsed_)
 288                 return IS_EDITABLE;
 289         return HIGHLY_EDITABLE;
 290 }
 291
 292
 293 void InsetCollapsable::insetUnlock(BufferView * bv)
 294 {
 295 #if 0
 296         if (autocollapse) {
 297                 if (change_label_with_text) {
 298                         draw_label = get_new_label();
 299                 } else {
 300                         draw_label = label;
 301                 }
 302                 collapsed_ = true;
 303         }
 304 #endif
 305         inset.insetUnlock(bv);
 306         if (scroll())
 307                 scroll(bv, 0.0F);
 308         bv->updateInset(this, false);
 309 }
 310
 311
 312 void InsetCollapsable::insetButtonPress(BufferView * bv,
 313                                         int x, int y, int button)
 314 {
 315         if (!collapsed_ && (y > button_bottom_y)) {
 316                 LyXFont font(LyXFont::ALL_SANE);
 317                 int yy = ascent(bv, font) + y -
 318                     (ascent_collapsed() +
 319                      descent_collapsed() +
 320                      inset.ascent(bv, font));
 321                 inset.insetButtonPress(bv, x, yy, button);
 322         }
 323 }
 324
 325
 326 void InsetCollapsable::insetButtonRelease(BufferView * bv,
 327                                           int x, int y, int button)
 328 {
 329         if ((x >= 0)  && (x < button_length) &&
 330             (y >= button_top_y) &&  (y <= button_bottom_y))
 331         {
 332                 if (collapsed_) {
 333                         collapsed_ = false;
 334 // should not be called on inset open!
 335 //                      inset.insetButtonRelease(bv, 0, 0, button);
 336                         inset.setUpdateStatus(bv, InsetText::FULL);
 337                         bv->updateInset(this, false);
 338                 } else {
 339                         collapsed_ = true;
 340                         bv->unlockInset(this);
 341                         bv->updateInset(this, false);
 342                 }
 343         } else if (!collapsed_ && (y > button_bottom_y)) {
 344                 LyXFont font(LyXFont::ALL_SANE);
 345                 int yy = ascent(bv, font) + y -
 346                     (ascent_collapsed() +
 347                      descent_collapsed() +
 348                      inset.ascent(bv, font));
 349                 inset.insetButtonRelease(bv, x, yy, button);
 350         }
 351 }
 352
 353
 354 void InsetCollapsable::insetMotionNotify(BufferView * bv,
 355                                          int x, int y, int state)
 356 {
 357         if (y > button_bottom_y) {
 358                 LyXFont font(LyXFont::ALL_SANE);
 359                 int yy = ascent(bv, font) + y -
 360                     (ascent_collapsed() +
 361                      descent_collapsed() +
 362                      inset.ascent(bv, font));
 363                 inset.insetMotionNotify(bv, x, yy, state);
 364         }
 365 }
 366
 367
 368 void InsetCollapsable::insetKeyPress(XKeyEvent * xke)
 369 {
 370         inset.insetKeyPress(xke);
 371 }
 372
 373
 374 int InsetCollapsable::latex(Buffer const * buf, ostream & os,
 375                             bool fragile, bool free_spc) const
 376 {
 377         return inset.latex(buf, os, fragile, free_spc);
 378 }
 379
 380
 381 int InsetCollapsable::getMaxWidth(BufferView * bv,
 382                                   UpdatableInset const * in) const
 383 {
 384 #if 0
 385         int const w = UpdatableInset::getMaxWidth(bv, in);
 386
 387         if (w < 0) {
 388                 // What does a negative max width signify? (Lgb)
 389                 // Use the max width of the draw-area (Jug)
 390                 return w;
 391         }
 392         // should be at least 30 pixels !!!
 393         return max(30, w - width_collapsed());
 394 #else
 395         return UpdatableInset::getMaxWidth(bv, in);
 396 #endif
 397 }
 398
 399
 400 void InsetCollapsable::update(BufferView * bv, LyXFont const & font,
 401                               bool reinit)
 402 {
 403         if (in_update) {
 404                 if (reinit && owner()) {
 405                         owner()->update(bv, font, true);
 406                 }
 407                 return;
 408         }
 409         in_update = true;
 410         inset.update(bv, font, reinit);
 411         if (reinit && owner()) {
 412                 owner()->update(bv, font, true);
 413         }
 414         in_update = false;
 415 }
 416
 417
 418 UpdatableInset::RESULT
 419 InsetCollapsable::localDispatch(BufferView * bv, kb_action action,
 420                                 string const & arg)
 421 {
 422         UpdatableInset::RESULT result = inset.localDispatch(bv, action, arg);
 423         if (result >= FINISHED)
 424                 bv->unlockInset(this);
 425         first_after_edit = false;
 426         return result;
 427 }
 428
 429
 430 bool InsetCollapsable::lockInsetInInset(BufferView * bv, UpdatableInset * in)
 431 {
 432         if (&inset == in)
 433                 return true;
 434         return inset.lockInsetInInset(bv, in);
 435 }
 436
 437
 438 bool InsetCollapsable::unlockInsetInInset(BufferView * bv, UpdatableInset * in,
 439                                           bool lr)
 440 {
 441         if (&inset == in) {
 442                 bv->unlockInset(this);
 443                 return true;
 444         }
 445         return inset.unlockInsetInInset(bv, in, lr);
 446 }
 447
 448
 449 bool InsetCollapsable::updateInsetInInset(BufferView * bv, Inset *in)
 450 {
 451         if (&inset == in)
 452                 return true;
 453         return inset.updateInsetInInset(bv, in);
 454 }
 455
 456
 457 unsigned int InsetCollapsable::insetInInsetY()
 458 {
 459         return inset.insetInInsetY() - (top_baseline - inset.y());
 460 }
 461
 462
 463 void InsetCollapsable::validate(LaTeXFeatures & features) const
 464 {
 465         inset.validate(features);
 466 }
 467
 468
 469 void InsetCollapsable::getCursorPos(BufferView * bv, int & x, int & y) const
 470 {
 471         inset.getCursorPos(bv, x , y);
 472 }
 473
 474
 475 void InsetCollapsable::toggleInsetCursor(BufferView * bv)
 476 {
 477         inset.toggleInsetCursor(bv);
 478 }
 479
 480
 481 void InsetCollapsable::showInsetCursor(BufferView * bv, bool show)
 482 {
 483         inset.showInsetCursor(bv, show);
 484 }
 485
 486
 487 void InsetCollapsable::hideInsetCursor(BufferView * bv)
 488 {
 489         inset.hideInsetCursor(bv);
 490 }
 491
 492
 493 UpdatableInset * InsetCollapsable::getLockingInset() const
 494 {
 495         UpdatableInset * in = inset.getLockingInset();
 496         if (const_cast<InsetText *>(&inset) == in)
 497                 return const_cast<InsetCollapsable *>(this);
 498         return in;
 499 }
 500
 501
 502 UpdatableInset * InsetCollapsable::getFirstLockingInsetOfType(Inset::Code c)
 503 {
 504         if (c == lyxCode())
 505                 return this;
 506         return inset.getFirstLockingInsetOfType(c);
 507 }
 508
 509
 510 void InsetCollapsable::setFont(BufferView * bv, LyXFont const & font,
 511                                bool toggleall, bool selectall)
 512 {
 513         inset.setFont(bv, font, toggleall, selectall);
 514 }
 515
 516
 517 bool InsetCollapsable::doClearArea() const
 518 {
 519         return inset.doClearArea();
 520 }
 521
 522
 523 LyXText * InsetCollapsable::getLyXText(BufferView const * bv,
 524                                        bool const recursive) const
 525 {
 526         return inset.getLyXText(bv, recursive);
 527 }
 528
 529
 530 void InsetCollapsable::deleteLyXText(BufferView * bv, bool recursive) const
 531 {
 532         inset.deleteLyXText(bv, recursive);
 533 }
 534
 535
 536 void InsetCollapsable::resizeLyXText(BufferView * bv, bool force) const
 537 {
 538         inset.resizeLyXText(bv, force);
 539         LyXFont font(LyXFont::ALL_SANE);
 540         oldWidth = width(bv, font);
 541 }
 542
 543
 544 std::vector<string> const InsetCollapsable::getLabelList() const
 545 {
 546         return inset.getLabelList();
 547 }
 548
 549
 550 bool InsetCollapsable::nodraw() const
 551 {
 552         return inset.nodraw();
 553 }
 554
 555
 556 int InsetCollapsable::scroll(bool recursive) const
 557 {
 558         int sx = UpdatableInset::scroll(false);
 559
 560         if (recursive)
 561                 sx += inset.scroll(recursive);
 562
 563         return sx;
 564 }
 565
 566
 567 Paragraph * InsetCollapsable::getParFromID(int id) const
 568 {
 569         lyxerr[Debug::INFO] << "Looking for paragraph " << id << endl;
 570         return inset.getParFromID(id);
 571 }
 572
 573
 574 Paragraph * InsetCollapsable::firstParagraph() const
 575 {
 576         return inset.firstParagraph();
 577 }
 578
 579
 580 Paragraph * InsetCollapsable::getFirstParagraph(int i) const
 581 {
 582         return inset.getFirstParagraph(i);
 583 }
 584
 585
 586 LyXCursor const & InsetCollapsable::cursor(BufferView * bv) const
 587 {
 588         return inset.cursor(bv);
 589 }
 590
 591
 592 Inset * InsetCollapsable::getInsetFromID(int id_arg) const
 593 {
 594         if (id_arg == id())
 595                 return const_cast<InsetCollapsable *>(this);
 596         return inset.getInsetFromID(id_arg);
 597 }
 598
 599
 600 void InsetCollapsable::open(BufferView * bv)
 601 {
 602         if (!collapsed_) return;
 603
 604         collapsed_ = false;
 605         bv->updateInset(this, false);
 606 }
 607
 608
 609 void InsetCollapsable::close(BufferView * bv) const
 610 {
 611         if (collapsed_)
 612                 return;
 613
 614         collapsed_ = true;
 615         bv->updateInset(const_cast<InsetCollapsable *>(this), false);
 616 }
 617
 618
 619 void InsetCollapsable::setLabel(string const & l) const
 620 {
 621         label = l;
 622 }
 623
 624
 625 bool InsetCollapsable::searchForward(BufferView * bv, string const & str,
 626                                      bool const & cs, bool const & mw)
 627 {
 628         bool found = inset.searchForward(bv, str, cs, mw);
 629         if (first_after_edit && !found)
 630                 close(bv);
 631         first_after_edit = false;
 632         return found;
 633 }
 634
 635
 636 bool InsetCollapsable::searchBackward(BufferView * bv, string const & str,
 637                                       bool const & cs, bool const & mw)
 638 {
 639         bool found = inset.searchBackward(bv, str, cs, mw);
 640         if (first_after_edit && !found)
 641                 close(bv);
 642         first_after_edit = false;
 643         return found;
 644 }
 645
 646
 647 string const InsetCollapsable::selectNextWordToSpellcheck(BufferView * bv,
 648                                               float & value) const
 649 {
 650         string const str = inset.selectNextWordToSpellcheck(bv, value);
 651         if (first_after_edit && str.empty())
 652                 close(bv);
 653         first_after_edit = false;
 654         return str;
 655 }