src/insets/InsetCollapsable.cpp

   1 /**
   2  * \file InsetCollapsable.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author Jürgen Vigna
   8  * \author Lars Gullik Bjønnes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "InsetCollapsable.h"
  16
  17 #include "Buffer.h"
  18 #include "BufferParams.h"
  19 #include "BufferView.h"
  20 #include "Cursor.h"
  21 #include "debug.h"
  22 #include "DispatchResult.h"
  23 #include "FloatList.h"
  24 #include "FuncStatus.h"
  25 #include "gettext.h"
  26 #include "Color.h"
  27 #include "LaTeXFeatures.h"
  28 #include "Lexer.h"
  29 #include "FuncRequest.h"
  30 #include "MetricsInfo.h"
  31
  32 #include "frontends/FontMetrics.h"
  33 #include "frontends/Painter.h"
  34
  35
  36 namespace lyx {
  37
  38 using std::endl;
  39 using std::string;
  40 using std::ostream;
  41
  42
  43 InsetCollapsable::CollapseStatus InsetCollapsable::status() const
  44 {
  45         return autoOpen_ ? Open : status_;
  46 }
  47
  48
  49 InsetCollapsable::Geometry InsetCollapsable::geometry() const
  50 {
  51         switch (decoration()) {
  52         case Classic:
  53                 if (status() == Open) {
  54                         if (openinlined_)
  55                                 return LeftButton;
  56                         else
  57                                 return TopButton;
  58                 } else
  59                         return ButtonOnly;
  60
  61         case Minimalistic:
  62                 return status() == Open ? NoButton : ButtonOnly ;
  63
  64         case Conglomerate:
  65                 return status() == Open ? SubLabel : Corners ;
  66         }
  67
  68         // dummy return value to shut down a warning,
  69         // this is dead code.
  70         return NoButton;
  71 }
  72
  73
  74 InsetCollapsable::InsetCollapsable
  75                 (BufferParams const & bp, CollapseStatus status)
  76         : InsetText(bp), status_(status),
  77           openinlined_(false), autoOpen_(false), mouse_hover_(false)
  78 {
  79         setAutoBreakRows(true);
  80         setDrawFrame(true);
  81         setFrameColor(Color::collapsableframe);
  82         setButtonLabel();
  83         // Fallback for lacking inset layout item
  84         layout_.bgcolor = Color::background;
  85 }
  86
  87
  88 InsetCollapsable::InsetCollapsable(InsetCollapsable const & rhs)
  89         : InsetText(rhs),
  90                 button_dim(rhs.button_dim),
  91                 topx(rhs.topx),
  92                 topbaseline(rhs.topbaseline),
  93                 layout_(rhs.layout_),
  94                 status_(rhs.status_),
  95                 openinlined_(rhs.openinlined_),
  96                 autoOpen_(rhs.autoOpen_),
  97                 textdim_(rhs.textdim_),
  98                 // the sole purpose of this copy constructor
  99                 mouse_hover_(false)
 100 {
 101 }
 102
 103
 104 void  InsetCollapsable::setLayout(BufferParams const & bp)
 105 {
 106         layout_ = getLayout(bp);
 107 }
 108
 109
 110 void InsetCollapsable::write(Buffer const & buf, ostream & os) const
 111 {
 112         os << "status ";
 113         switch (status_) {
 114         case Open:
 115                 os << "open";
 116                 break;
 117         case Collapsed:
 118                 os << "collapsed";
 119                 break;
 120         }
 121         os << "\n";
 122         text_.write(buf, os);
 123 }
 124
 125
 126 void InsetCollapsable::read(Buffer const & buf, Lexer & lex)
 127 {
 128         bool token_found = false;
 129         if (lex.isOK()) {
 130                 lex.next();
 131                 string const token = lex.getString();
 132                 if (token == "status") {
 133                         lex.next();
 134                         string const tmp_token = lex.getString();
 135
 136                         if (tmp_token == "collapsed") {
 137                                 status_ = Collapsed;
 138                                 token_found = true;
 139                         } else if (tmp_token == "open") {
 140                                 status_ = Open;
 141                                 token_found = true;
 142                         } else {
 143                                 lyxerr << "InsetCollapsable::read: Missing status!"
 144                                        << endl;
 145                                 // Take countermeasures
 146                                 lex.pushToken(token);
 147                         }
 148                 } else {
 149                         lyxerr << "InsetCollapsable::read: Missing 'status'-tag!"
 150                                    << endl;
 151                         // take countermeasures
 152                         lex.pushToken(token);
 153                 }
 154         }
 155         InsetText::read(buf, lex);
 156
 157         if (!token_found)
 158                 status_ = isOpen() ? Open : Collapsed;
 159
 160         setButtonLabel();
 161 }
 162
 163
 164 Dimension InsetCollapsable::dimensionCollapsed() const
 165 {
 166         Dimension dim;
 167         theFontMetrics(layout_.labelfont).buttonText(
 168                 layout_.labelstring, dim.wid, dim.asc, dim.des);
 169         return dim;
 170 }
 171
 172
 173 bool InsetCollapsable::metrics(MetricsInfo & mi, Dimension & dim) const
 174 {
 175         using std::max;
 176
 177         autoOpen_ = mi.base.bv->cursor().isInside(this);
 178         mi.base.textwidth -= int(1.5 * TEXT_TO_INSET_OFFSET);
 179
 180         switch (geometry()) {
 181         case NoButton:
 182                 InsetText::metrics(mi, dim);
 183                 break;
 184         case Corners:
 185                 InsetText::metrics(mi, dim);
 186                 dim.des -= 3;
 187                 dim.asc -= 3;
 188                 break;
 189         case SubLabel: {
 190                 InsetText::metrics(mi, dim);
 191                 // consider width of the inset label
 192                 Font font(layout_.labelfont);
 193                 font.realize(Font(Font::ALL_SANE));
 194                 font.decSize();
 195                 font.decSize();
 196                 int w = 0;
 197                 int a = 0;
 198                 int d = 0;
 199                 docstring s = layout_.labelstring;
 200                 theFontMetrics(font).rectText(s, w, a, d);
 201                 dim.wid = max(dim.wid, w);
 202                 dim.des += ascent();
 203                 break;
 204                 }
 205         case TopButton:
 206         case LeftButton:
 207         case ButtonOnly:
 208                 dim = dimensionCollapsed();
 209                 if (geometry() == TopButton
 210                  || geometry() == LeftButton) {
 211                         InsetText::metrics(mi, textdim_);
 212                         // This expression should not contain mi.base.texwidth
 213                         openinlined_ = !hasFixedWidth()
 214                                 && textdim_.wid < 0.5 * mi.base.bv->workWidth();
 215                         if (openinlined_) {
 216                                 // Correct for button width.
 217                                 dim.wid += textdim_.wid;
 218                                 dim.des = max(dim.des - textdim_.asc + dim.asc, textdim_.des);
 219                                 dim.asc = textdim_.asc;
 220                         } else {
 221                                 dim.des += textdim_.height() + TEXT_TO_BOTTOM_OFFSET;
 222                                 dim.wid = max(dim.wid, textdim_.wid);
 223                                 if (hasFixedWidth())
 224                                         dim.wid = max(dim.wid, mi.base.textwidth);
 225                         }
 226                 }
 227                 break;
 228         }
 229         dim.asc += TEXT_TO_INSET_OFFSET;
 230         dim.des += TEXT_TO_INSET_OFFSET;
 231         dim.wid += int(1.5 * TEXT_TO_INSET_OFFSET);
 232         mi.base.textwidth += int(1.5 * TEXT_TO_INSET_OFFSET);
 233         bool const changed = dim_ != dim;
 234         dim_ = dim;
 235         return changed;
 236 }
 237
 238
 239 bool InsetCollapsable::setMouseHover(bool mouse_hover)
 240 {
 241         mouse_hover_ = mouse_hover;
 242         return true;
 243 }
 244
 245
 246 void InsetCollapsable::draw(PainterInfo & pi, int x, int y) const
 247 {
 248         autoOpen_ = pi.base.bv->cursor().isInside(this);
 249         text_.background_color_ = backgroundColor();
 250         const int xx = x + TEXT_TO_INSET_OFFSET;
 251
 252         // Draw button first -- top, left or only
 253         Dimension dimc = dimensionCollapsed();
 254         int const top  = y - ascent() + TEXT_TO_INSET_OFFSET;
 255         if (geometry() == TopButton ||
 256             geometry() == LeftButton ||
 257             geometry() == ButtonOnly) {
 258                 button_dim.x1 = xx + 0;
 259                 button_dim.x2 = xx + dimc.width();
 260                 button_dim.y1 = top;
 261                 button_dim.y2 = top + dimc.height();
 262
 263                 pi.pain.buttonText(xx, top + dimc.asc, layout_.labelstring, layout_.labelfont, mouse_hover_);
 264         } else {
 265                 button_dim.x1 = 0;
 266                 button_dim.y1 = 0;
 267                 button_dim.x2 = 0;
 268                 button_dim.y2 = 0;
 269         }
 270
 271         int textx, texty;
 272         switch (geometry()) {
 273         case LeftButton:
 274                 textx = xx + dimc.width();
 275                 texty = top + textdim_.asc;
 276                 InsetText::draw(pi, textx, texty);
 277                 break;
 278         case TopButton:
 279                 textx = xx;
 280                 texty = top + dimc.height() + textdim_.asc;
 281                 InsetText::draw(pi, textx, texty);
 282                 break;
 283         case ButtonOnly:
 284                 break;
 285         case NoButton:
 286                 textx = xx;
 287                 texty = y + textdim_.asc;
 288                 InsetText::draw(pi, textx, texty);
 289                 break;
 290         case SubLabel:
 291         case Corners:
 292                 textx = xx;
 293                 texty = y + textdim_.asc;
 294                 const_cast<InsetCollapsable *>(this)->setDrawFrame(false);
 295                 InsetText::draw(pi, textx, texty);
 296                 const_cast<InsetCollapsable *>(this)->setDrawFrame(true);
 297
 298                 int desc = InsetText::descent();
 299                 if (geometry() == SubLabel)
 300                         desc -= ascent();
 301                 else
 302                         desc -= 3;
 303
 304                 const int xx1 = xx + border_ - 1;
 305                 const int xx2 = x + dim_.wid - border_
 306                         - TEXT_TO_INSET_OFFSET + 1;
 307                 pi.pain.line(xx1, y + desc - 4,
 308                              xx1, y + desc,
 309                         layout_.labelfont.color());
 310                 if (internalStatus() == Open)
 311                         pi.pain.line(xx1, y + desc,
 312                                 xx2, y + desc,
 313                                 layout_.labelfont.color());
 314                 else {
 315                         // Make status_ value visible:
 316                         pi.pain.line(xx1, y + desc,
 317                                 xx1 + 4, y + desc,
 318                                 layout_.labelfont.color());
 319                         pi.pain.line(xx2 - 4, y + desc,
 320                                 xx2, y + desc,
 321                                 layout_.labelfont.color());
 322                 }
 323                 pi.pain.line(x + dim_.wid - 3, y + desc, x + dim_.wid - 3, y + desc - 4,
 324                         layout_.labelfont.color());
 325
 326                 // the label below the text. Can be toggled.
 327                 if (geometry() == SubLabel) {
 328                         Font font(layout_.labelfont);
 329                         font.realize(Font(Font::ALL_SANE));
 330                         font.decSize();
 331                         font.decSize();
 332                         int w = 0;
 333                         int a = 0;
 334                         int d = 0;
 335                         // FIXME UNICODE
 336                         docstring s = layout_.labelstring;
 337                         theFontMetrics(font).rectText(s, w, a, d);
 338                         pi.pain.rectText(x + (dim_.wid - w) / 2, y + desc + a,
 339                                 s, font, Color::none, Color::none);
 340                 }
 341
 342                 // a visual clue when the cursor is inside the inset
 343                 Cursor & cur = pi.base.bv->cursor();
 344                 if (cur.isInside(this)) {
 345                         y -= ascent();
 346                         y += 3;
 347                         pi.pain.line(xx1, y + 4, xx1, y, layout_.labelfont.color());
 348                         pi.pain.line(xx1 + 4, y, xx1, y, layout_.labelfont.color());
 349                         pi.pain.line(xx2, y + 4, x + dim_.wid - 3, y,
 350                                 layout_.labelfont.color());
 351                         pi.pain.line(xx2 - 4, y, xx2, y,
 352                                 layout_.labelfont.color());
 353                 }
 354                 break;
 355         }
 356         setPosCache(pi, x, y);
 357 }
 358
 359
 360 void InsetCollapsable::drawSelection(PainterInfo & pi, int x, int y) const
 361 {
 362         x += TEXT_TO_INSET_OFFSET;
 363         switch (geometry()) {
 364         case LeftButton:
 365                 x += dimensionCollapsed().wid;
 366                 InsetText::drawSelection(pi, x, y);
 367                 break;
 368         case TopButton:
 369                 y += dimensionCollapsed().des + textdim_.asc;
 370                 InsetText::drawSelection(pi, x, y);
 371                 break;
 372         case ButtonOnly:
 373                 break;
 374         case NoButton:
 375         case SubLabel:
 376         case Corners:
 377                 InsetText::drawSelection(pi, x, y);
 378                 break;
 379         }
 380 }
 381
 382
 383 void InsetCollapsable::cursorPos(BufferView const & bv,
 384                 CursorSlice const & sl, bool boundary, int & x, int & y) const
 385 {
 386         BOOST_ASSERT(geometry() != ButtonOnly);
 387
 388         InsetText::cursorPos(bv, sl, boundary, x, y);
 389
 390         switch (geometry()) {
 391         case LeftButton:
 392                 x += dimensionCollapsed().wid;
 393                 break;
 394         case TopButton:
 395                 y += dimensionCollapsed().height() - ascent()
 396                         + TEXT_TO_INSET_OFFSET + textdim_.asc;
 397                 break;
 398         case NoButton:
 399         case SubLabel:
 400         case Corners:
 401                 // Do nothing
 402                 break;
 403         case ButtonOnly:
 404                 // Cannot get here
 405                 break;
 406         }
 407         x += TEXT_TO_INSET_OFFSET;
 408 }
 409
 410
 411 Inset::EDITABLE InsetCollapsable::editable() const
 412 {
 413         return geometry() != ButtonOnly? HIGHLY_EDITABLE : IS_EDITABLE;
 414 }
 415
 416
 417 bool InsetCollapsable::descendable() const
 418 {
 419         return geometry() != ButtonOnly;
 420 }
 421
 422
 423 bool InsetCollapsable::hitButton(FuncRequest const & cmd) const
 424 {
 425         return button_dim.contains(cmd.x, cmd.y);
 426 }
 427
 428
 429 docstring const InsetCollapsable::getNewLabel(docstring const & l) const
 430 {
 431         docstring label;
 432         pos_type const max_length = 15;
 433         pos_type const p_siz = paragraphs().begin()->size();
 434         pos_type const n = std::min(max_length, p_siz);
 435         pos_type i = 0;
 436         pos_type j = 0;
 437         for (; i < n && j < p_siz; ++j) {
 438                 if (paragraphs().begin()->isInset(j))
 439                         continue;
 440                 label += paragraphs().begin()->getChar(j);
 441                 ++i;
 442         }
 443         if (paragraphs().size() > 1 || (i > 0 && j < p_siz)) {
 444                 label += "...";
 445         }
 446         return label.empty() ? l : label;
 447 }
 448
 449
 450 void InsetCollapsable::edit(Cursor & cur, bool left)
 451 {
 452         //lyxerr << "InsetCollapsable: edit left/right" << endl;
 453         cur.push(*this);
 454         InsetText::edit(cur, left);
 455 }
 456
 457
 458 Inset * InsetCollapsable::editXY(Cursor & cur, int x, int y)
 459 {
 460         //lyxerr << "InsetCollapsable: edit xy" << endl;
 461         if (geometry() == ButtonOnly
 462          || (button_dim.contains(x, y)
 463           && geometry() != NoButton))
 464                 return this;
 465         cur.push(*this);
 466         return InsetText::editXY(cur, x, y);
 467 }
 468
 469
 470 void InsetCollapsable::doDispatch(Cursor & cur, FuncRequest & cmd)
 471 {
 472         //lyxerr << "InsetCollapsable::doDispatch (begin): cmd: " << cmd
 473         //      << " cur: " << cur << " bvcur: " << cur.bv().cursor() << endl;
 474
 475         switch (cmd.action) {
 476         case LFUN_MOUSE_PRESS:
 477                 if (cmd.button() == mouse_button::button1
 478                  && hitButton(cmd)
 479                  && geometry() != NoButton) {
 480                         // reset selection if necessary (see bug 3060)
 481                         if (cur.selection())
 482                                 cur.bv().cursor().clearSelection();
 483                         else
 484                                 cur.noUpdate();
 485                         cur.dispatched();
 486                         break;
 487                 }
 488                 if (geometry() == NoButton)
 489                         InsetText::doDispatch(cur, cmd);
 490                 else if (geometry() != ButtonOnly
 491                      && !hitButton(cmd))
 492                         InsetText::doDispatch(cur, cmd);
 493                 else
 494                         cur.undispatched();
 495                 break;
 496
 497         case LFUN_MOUSE_MOTION:
 498         case LFUN_MOUSE_DOUBLE:
 499         case LFUN_MOUSE_TRIPLE:
 500                 if (geometry() == NoButton)
 501                         InsetText::doDispatch(cur, cmd);
 502                 else if (geometry() != ButtonOnly
 503                      && !hitButton(cmd))
 504                         InsetText::doDispatch(cur, cmd);
 505                 else
 506                         cur.undispatched();
 507                 break;
 508
 509         case LFUN_MOUSE_RELEASE:
 510                 if (cmd.button() == mouse_button::button3) {
 511                         // There is no button to right click:
 512                         if (geometry() == Corners ||
 513                             geometry() == SubLabel ||
 514                             geometry() == NoButton)  {
 515                                 if (internalStatus() == Open)
 516                                         setStatus(cur, Collapsed);
 517                                 else
 518                                         setStatus(cur, Open);
 519                                 break;
 520                         } else {
 521                                 // Open the Inset
 522                                 // configuration dialog
 523                                 showInsetDialog(&cur.bv());
 524                                 break;
 525                         }
 526                 }
 527
 528                 if (geometry() == NoButton) {
 529                         // The mouse click has to be within the inset!
 530                         InsetText::doDispatch(cur, cmd);
 531                         break;
 532                 }
 533
 534                 if (cmd.button() == mouse_button::button1 && hitButton(cmd)) {
 535                         // if we are selecting, we do not want to
 536                         // toggle the inset.
 537                         if (cur.selection())
 538                                 break;
 539                         // Left button is clicked, the user asks to
 540                         // toggle the inset visual state.
 541                         cur.dispatched();
 542                         cur.updateFlags(Update::Force | Update::FitCursor);
 543                         if (geometry() == ButtonOnly) {
 544                                 setStatus(cur, Open);
 545                                 edit(cur, true);
 546                         }
 547                         else {
 548                                 setStatus(cur, Collapsed);
 549                         }
 550                         cur.bv().cursor() = cur;
 551                         break;
 552                 }
 553
 554                 // The mouse click is within the opened inset.
 555                 if (geometry() == TopButton
 556                  || geometry() == LeftButton)
 557                         InsetText::doDispatch(cur, cmd);
 558                 break;
 559
 560         case LFUN_INSET_TOGGLE:
 561                 if (cmd.argument() == "open")
 562                         setStatus(cur, Open);
 563                 else if (cmd.argument() == "close")
 564                         setStatus(cur, Collapsed);
 565                 else if (cmd.argument() == "toggle" || cmd.argument().empty())
 566                         if (internalStatus() == Open) {
 567                                 setStatus(cur, Collapsed);
 568                                 if (geometry() == ButtonOnly)
 569                                         cur.top().forwardPos();
 570                         } else
 571                                 setStatus(cur, Open);
 572                 else // if assign or anything else
 573                         cur.undispatched();
 574                 cur.dispatched();
 575                 break;
 576
 577         default:
 578                 InsetText::doDispatch(cur, cmd);
 579                 break;
 580         }
 581 }
 582
 583
 584 bool InsetCollapsable::getStatus(Cursor & cur, FuncRequest const & cmd,
 585                 FuncStatus & flag) const
 586 {
 587         switch (cmd.action) {
 588
 589         case LFUN_INSET_TOGGLE:
 590                 if (cmd.argument() == "open" || cmd.argument() == "close" ||
 591                     cmd.argument() == "toggle")
 592                         flag.enabled(true);
 593                 else
 594                         flag.enabled(false);
 595                 return true;
 596
 597         default:
 598                 return InsetText::getStatus(cur, cmd, flag);
 599         }
 600 }
 601
 602
 603 void InsetCollapsable::setLabel(docstring const & l)
 604 {
 605         layout_.labelstring = l;
 606 }
 607
 608
 609 void InsetCollapsable::setStatus(Cursor & cur, CollapseStatus status)
 610 {
 611         status_ = status;
 612         setButtonLabel();
 613         if (status_ == Collapsed)
 614                 cur.leaveInset(*this);
 615 }
 616
 617
 618 void InsetCollapsable::setLabelFont(Font const & font)
 619 {
 620         layout_.labelfont = font;
 621 }
 622
 623 docstring InsetCollapsable::floatName(string const & type, BufferParams const & bp) const
 624 {
 625         FloatList const & floats = bp.getTextClass().floats();
 626         FloatList::const_iterator it = floats[type];
 627         // FIXME UNICODE
 628         return (it == floats.end()) ? from_ascii(type) : bp.B_(it->second.name());
 629 }
 630
 631
 632 InsetCollapsable::Decoration InsetCollapsable::decoration() const
 633 {
 634         if (layout_.decoration == "classic")
 635                 return Classic;
 636         if (layout_.decoration == "minimalistic")
 637                 return Minimalistic;
 638         if (layout_.decoration == "conglomerate")
 639                 return Conglomerate;
 640         if (name() == from_ascii("CharStyle"))
 641                 return Conglomerate;
 642         return Classic;
 643 }
 644
 645
 646 int InsetCollapsable::latex(Buffer const & buf, odocstream & os,
 647                           OutputParams const & runparams) const
 648 {
 649         // This implements the standard way of handling the LaTeX output of
 650         // a collapsable inset, either a command or an environment. Standard
 651         // collapsable insets should not redefine this, non-standard ones may
 652         // call this.
 653         if (!layout_.latexname.empty()) {
 654                 if (layout_.latextype == "command") {
 655                         // FIXME UNICODE
 656                         os << '\\' << from_utf8(layout_.latexname);
 657                         if (!layout_.latexparam.empty())
 658                                 os << from_utf8(layout_.latexparam);
 659                         os << '{';
 660                 } else if (layout_.latextype == "environment") {
 661                         os << "%\n\\begin{" << from_utf8(layout_.latexname) << "}\n";
 662                         if (!layout_.latexparam.empty())
 663                                 os << from_utf8(layout_.latexparam);
 664                 }
 665         }
 666         int i = InsetText::latex(buf, os, runparams);
 667         if (!layout_.latexname.empty())
 668                 if (layout_.latextype == "command") {
 669                         os << "}";
 670                 } else if (layout_.latextype == "environment") {
 671                         os << "\n\\end{" << from_utf8(layout_.latexname) << "}\n";
 672                         i += 4;
 673                 }
 674         return i;
 675 }
 676
 677
 678 void InsetCollapsable::validate(LaTeXFeatures & features) const
 679 {
 680         // Force inclusion of preamble snippet in layout file
 681         features.addPreambleSnippet(layout_.preamble);
 682         InsetText::validate(features);
 683 }
 684
 685
 686 } // namespace lyx