src/mathed/MathMacro.cpp

   1 /**
   2  * \file MathMacro.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 André Pönitz
   8  * \author Stefan Schimanski
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "MathMacro.h"
  16
  17 #include "InsetMathChar.h"
  18 #include "MathCompletionList.h"
  19 #include "MathExtern.h"
  20 #include "MathFactory.h"
  21 #include "MathStream.h"
  22 #include "MathSupport.h"
  23
  24 #include "Buffer.h"
  25 #include "BufferView.h"
  26 #include "CoordCache.h"
  27 #include "Cursor.h"
  28 #include "FuncStatus.h"
  29 #include "FuncRequest.h"
  30 #include "LaTeXFeatures.h"
  31 #include "LyXFunc.h"
  32 #include "LyXRC.h"
  33 #include "Undo.h"
  34
  35 #include "frontends/Painter.h"
  36
  37 #include "support/debug.h"
  38 #include "support/lassert.h"
  39 #include "support/textutils.h"
  40
  41 #include <ostream>
  42 #include <vector>
  43
  44 using namespace std;
  45
  46 namespace lyx {
  47
  48
  49 /// A proxy for the macro values
  50 class ArgumentProxy : public InsetMath {
  51 public:
  52         ///
  53         ArgumentProxy(MathMacro & mathMacro, size_t idx)
  54                 : mathMacro_(mathMacro), idx_(idx) {}
  55         ///
  56         ArgumentProxy(MathMacro & mathMacro, size_t idx, docstring const & def)
  57                 : mathMacro_(mathMacro), idx_(idx)
  58         {
  59                         asArray(def, def_);
  60         }
  61         ///
  62         void metrics(MetricsInfo & mi, Dimension & dim) const {
  63                 mathMacro_.macro()->unlock();
  64                 mathMacro_.cell(idx_).metrics(mi, dim);
  65
  66                 if (!mathMacro_.editMetrics(mi.base.bv)
  67                     && mathMacro_.cell(idx_).empty())
  68                         def_.metrics(mi, dim);
  69
  70                 mathMacro_.macro()->lock();
  71         }
  72         ///
  73         void draw(PainterInfo & pi, int x, int y) const {
  74                 if (mathMacro_.editMetrics(pi.base.bv)) {
  75                         // The only way a ArgumentProxy can appear is in a cell of the
  76                         // MathMacro. Moreover the cells are only drawn in the DISPLAY_FOLDED
  77                         // mode and then, if the macro is edited the monochrome
  78                         // mode is entered by the MathMacro before calling the cells' draw
  79                         // method. Then eventually this code is reached and the proxy leaves
  80                         // monochrome mode temporarely. Hence, if it is not in monochrome
  81                         // here (and the assert triggers in pain.leaveMonochromeMode())
  82                         // it's a bug.
  83                         pi.pain.leaveMonochromeMode();
  84                         mathMacro_.cell(idx_).draw(pi, x, y);
  85                         pi.pain.enterMonochromeMode(Color_mathbg, Color_mathmacroblend);
  86                 } else if (mathMacro_.cell(idx_).empty()) {
  87                         mathMacro_.cell(idx_).setXY(*pi.base.bv, x, y);
  88                         def_.draw(pi, x, y);
  89                 } else
  90                         mathMacro_.cell(idx_).draw(pi, x, y);
  91         }
  92         ///
  93         size_t idx() const { return idx_; }
  94         ///
  95         int kerning(BufferView const * bv) const
  96         {
  97                 if (mathMacro_.editMetrics(bv)
  98                     || !mathMacro_.cell(idx_).empty())
  99                         return mathMacro_.cell(idx_).kerning(bv);
 100                 else
 101                         return def_.kerning(bv);
 102         }
 103
 104 private:
 105         ///
 106         Inset * clone() const
 107         {
 108                 return new ArgumentProxy(*this);
 109         }
 110         ///
 111         MathMacro & mathMacro_;
 112         ///
 113         size_t idx_;
 114         ///
 115         MathData def_;
 116 };
 117
 118
 119 MathMacro::MathMacro(Buffer * buf, docstring const & name)
 120         : InsetMathNest(buf, 0), name_(name), displayMode_(DISPLAY_INIT),
 121                 expanded_(buf), attachedArgsNum_(0), optionals_(0), nextFoldMode_(true),
 122                 macroBackup_(buf), macro_(0), needsUpdate_(false), appetite_(9)
 123 {}
 124
 125
 126 Inset * MathMacro::clone() const
 127 {
 128         MathMacro * copy = new MathMacro(*this);
 129         copy->needsUpdate_ = true;
 130         copy->expanded_.cell(0).clear();
 131         return copy;
 132 }
 133
 134
 135 docstring MathMacro::name() const
 136 {
 137         if (displayMode_ == DISPLAY_UNFOLDED)
 138                 return asString(cell(0));
 139
 140         return name_;
 141 }
 142
 143
 144 void MathMacro::cursorPos(BufferView const & bv,
 145                 CursorSlice const & sl, bool boundary, int & x, int & y) const
 146 {
 147         // We may have 0 arguments, but InsetMathNest requires at least one.
 148         if (nargs() > 0)
 149                 InsetMathNest::cursorPos(bv, sl, boundary, x, y);
 150 }
 151
 152
 153 bool MathMacro::editMode(BufferView const * bv) const {
 154         // find this in cursor trace
 155         Cursor const & cur = bv->cursor();
 156         for (size_t i = 0; i != cur.depth(); ++i)
 157                 if (&cur[i].inset() == this) {
 158                         // look if there is no other macro in edit mode above
 159                         ++i;
 160                         for (; i != cur.depth(); ++i) {
 161                                 MathMacro const * macro = dynamic_cast<MathMacro const *>(&cur[i].inset());
 162                                 if (macro && macro->displayMode() == DISPLAY_NORMAL)
 163                                         return false;
 164                         }
 165
 166                         // ok, none found, I am the highest one
 167                         return true;
 168                 }
 169
 170         return false;
 171 }
 172
 173
 174 bool MathMacro::editMetrics(BufferView const * bv) const
 175 {
 176         return editing_[bv];
 177 }
 178
 179
 180 void MathMacro::metrics(MetricsInfo & mi, Dimension & dim) const
 181 {
 182         // set edit mode for which we will have calculated metrics. But only
 183         editing_[mi.base.bv] = editMode(mi.base.bv);
 184
 185         // calculate new metrics according to display mode
 186         if (displayMode_ == DISPLAY_INIT || displayMode_ == DISPLAY_INTERACTIVE_INIT) {
 187                 mathed_string_dim(mi.base.font, from_ascii("\\") + name(), dim);
 188         } else if (displayMode_ == DISPLAY_UNFOLDED) {
 189                 cell(0).metrics(mi, dim);
 190                 Dimension bsdim;
 191                 mathed_string_dim(mi.base.font, from_ascii("\\"), bsdim);
 192                 dim.wid += bsdim.width() + 1;
 193                 dim.asc = max(bsdim.ascent(), dim.ascent());
 194                 dim.des = max(bsdim.descent(), dim.descent());
 195                 metricsMarkers(dim);
 196         } else if (lyxrc.macro_edit_style == LyXRC::MACRO_EDIT_LIST
 197                    && editing_[mi.base.bv]) {
 198                 // Macro will be edited in a old-style list mode here:
 199
 200                 LASSERT(macro_ != 0, /**/);
 201                 Dimension fontDim;
 202                 FontInfo labelFont = sane_font;
 203                 math_font_max_dim(labelFont, fontDim.asc, fontDim.des);
 204
 205                 // get dimension of components of list view
 206                 Dimension nameDim;
 207                 nameDim.wid = mathed_string_width(mi.base.font, from_ascii("Macro \\") + name() + ": ");
 208                 nameDim.asc = fontDim.asc;
 209                 nameDim.des = fontDim.des;
 210
 211                 Dimension argDim;
 212                 argDim.wid = mathed_string_width(labelFont, from_ascii("#9: "));
 213                 argDim.asc = fontDim.asc;
 214                 argDim.des = fontDim.des;
 215
 216                 Dimension defDim;
 217                 definition_.metrics(mi, defDim);
 218
 219                 // add them up
 220                 dim.wid = nameDim.wid + defDim.wid;
 221                 dim.asc = max(nameDim.asc, defDim.asc);
 222                 dim.des = max(nameDim.des, defDim.des);
 223
 224                 for (idx_type i = 0; i < nargs(); ++i) {
 225                         Dimension cdim;
 226                         cell(i).metrics(mi, cdim);
 227                         dim.des += max(argDim.height(), cdim.height()) + 1;
 228                         dim.wid = max(dim.wid, argDim.wid + cdim.wid);
 229                 }
 230
 231                 // make space for box and markers, 2 pixels
 232                 dim.asc += 1;
 233                 dim.des += 1;
 234                 dim.wid += 2;
 235                 metricsMarkers2(dim);
 236         } else {
 237                 LASSERT(macro_ != 0, /**/);
 238
 239                 // calculate metrics, hoping that all cells are seen
 240                 macro_->lock();
 241                 expanded_.cell(0).metrics(mi, dim);
 242
 243                 // otherwise do a manual metrics call
 244                 CoordCache & coords = mi.base.bv->coordCache();
 245                 for (idx_type i = 0; i < nargs(); ++i) {
 246                         if (!coords.getArrays().has(&cell(i))) {
 247                                 Dimension tdim;
 248                                 cell(i).metrics(mi, tdim);
 249                         }
 250                 }
 251                 macro_->unlock();
 252
 253                 // calculate dimension with label while editing
 254                 if (lyxrc.macro_edit_style == LyXRC::MACRO_EDIT_INLINE_BOX
 255                     && editing_[mi.base.bv]) {
 256                         FontInfo font = mi.base.font;
 257                         augmentFont(font, from_ascii("lyxtex"));
 258                         Dimension namedim;
 259                         mathed_string_dim(font, name(), namedim);
 260 #if 0
 261                         dim.wid += 2 + namedim.wid + 2 + 2;
 262                         dim.asc = max(dim.asc, namedim.asc) + 2;
 263                         dim.des = max(dim.des, namedim.des) + 2;
 264 #endif
 265                         dim.wid = max(1 + namedim.wid + 1, 2 + dim.wid + 2);
 266                         dim.asc += 1 + namedim.height() + 1;
 267                         dim.des += 2;
 268                 }
 269
 270         }
 271 }
 272
 273
 274 int MathMacro::kerning(BufferView const * bv) const {
 275         if (displayMode_ == DISPLAY_NORMAL && !editing_[bv])
 276                 return expanded_.kerning(bv);
 277         else
 278                 return 0;
 279 }
 280
 281
 282 void MathMacro::updateMacro(MacroContext const & mc)
 283 {
 284         if (validName()) {
 285                 macro_ = mc.get(name());
 286                 if (macro_ && macroBackup_ != *macro_) {
 287                         macroBackup_ = *macro_;
 288                         needsUpdate_ = true;
 289                 }
 290         } else {
 291                 macro_ = 0;
 292         }
 293 }
 294
 295
 296 void MathMacro::updateRepresentation()
 297 {
 298         // known macro?
 299         if (macro_ == 0)
 300                 return;
 301
 302         // update requires
 303         requires_ = macro_->requires();
 304
 305         // non-normal mode? We are done!
 306         if (displayMode_ != DISPLAY_NORMAL)
 307                 return;
 308
 309         // macro changed?
 310         if (!needsUpdate_)
 311                 return;
 312
 313         needsUpdate_ = false;
 314
 315         // get default values of macro
 316         vector<docstring> const & defaults = macro_->defaults();
 317
 318         // create MathMacroArgumentValue objects pointing to the cells of the macro
 319         vector<MathData> values(nargs());
 320         for (size_t i = 0; i < nargs(); ++i) {
 321                 ArgumentProxy * proxy;
 322                 if (i < defaults.size())
 323                         proxy = new ArgumentProxy(*this, i, defaults[i]);
 324                 else
 325                         proxy = new ArgumentProxy(*this, i);
 326                 values[i].insert(0, MathAtom(proxy));
 327         }
 328
 329         // expanding macro with the values
 330         macro_->expand(values, expanded_.cell(0));
 331                 // get definition for list edit mode
 332         docstring const & display = macro_->display();
 333         asArray(display.empty() ? macro_->definition() : display, definition_);
 334 }
 335
 336
 337 void MathMacro::draw(PainterInfo & pi, int x, int y) const
 338 {
 339         Dimension const dim = dimension(*pi.base.bv);
 340
 341         setPosCache(pi, x, y);
 342         int expx = x;
 343         int expy = y;
 344
 345         if (displayMode_ == DISPLAY_INIT || displayMode_ == DISPLAY_INTERACTIVE_INIT) {
 346                 FontSetChanger dummy(pi.base, "lyxtex");
 347                 pi.pain.text(x, y, from_ascii("\\") + name(), pi.base.font);
 348         } else if (displayMode_ == DISPLAY_UNFOLDED) {
 349                 FontSetChanger dummy(pi.base, "lyxtex");
 350                 pi.pain.text(x, y, from_ascii("\\"), pi.base.font);
 351                 x += mathed_string_width(pi.base.font, from_ascii("\\")) + 1;
 352                 cell(0).draw(pi, x, y);
 353                 drawMarkers(pi, expx, expy);
 354         } else if (lyxrc.macro_edit_style == LyXRC::MACRO_EDIT_LIST
 355                    && editing_[pi.base.bv]) {
 356                 // Macro will be edited in a old-style list mode here:
 357
 358                 CoordCache const & coords = pi.base.bv->coordCache();
 359                 FontInfo const & labelFont = sane_font;
 360
 361                 // markers and box needs two pixels
 362                 x += 2;
 363
 364                 // get maximal font height
 365                 Dimension fontDim;
 366                 math_font_max_dim(pi.base.font, fontDim.asc, fontDim.des);
 367
 368                 // draw label
 369                 docstring label = from_ascii("Macro \\") + name() + from_ascii(": ");
 370                 pi.pain.text(x, y, label, labelFont);
 371                 x += mathed_string_width(labelFont, label);
 372
 373                 // draw definition
 374                 definition_.draw(pi, x, y);
 375                 Dimension const & defDim = coords.getArrays().dim(&definition_);
 376                 y += max(fontDim.des, defDim.des);
 377
 378                 // draw parameters
 379                 docstring str = from_ascii("#9");
 380                 int strw1 = mathed_string_width(labelFont, from_ascii("#9"));
 381                 int strw2 = mathed_string_width(labelFont, from_ascii(": "));
 382
 383                 for (idx_type i = 0; i < nargs(); ++i) {
 384                         // position of label
 385                         Dimension const & cdim = coords.getArrays().dim(&cell(i));
 386                         x = expx + 2;
 387                         y += max(fontDim.asc, cdim.asc) + 1;
 388
 389                         // draw label
 390                         str[1] = '1' + i;
 391                         pi.pain.text(x, y, str, labelFont);
 392                         x += strw1;
 393                         pi.pain.text(x, y, from_ascii(":"), labelFont);
 394                         x += strw2;
 395
 396                         // draw paramter
 397                         cell(i).draw(pi, x, y);
 398
 399                         // next line
 400                         y += max(fontDim.des, cdim.des);
 401                 }
 402
 403                 pi.pain.rectangle(expx + 1, expy - dim.asc + 1, dim.wid - 3,
 404                                   dim.height() - 2, Color_mathmacroframe);
 405                 drawMarkers2(pi, expx, expy);
 406         } else {
 407                 bool drawBox = lyxrc.macro_edit_style == LyXRC::MACRO_EDIT_INLINE_BOX;
 408
 409                 // warm up cells
 410                 for (size_t i = 0; i < nargs(); ++i)
 411                         cell(i).setXY(*pi.base.bv, x, y);
 412
 413                 if (drawBox && editing_[pi.base.bv]) {
 414                         // draw header and rectangle around
 415                         FontInfo font = pi.base.font;
 416                         augmentFont(font, from_ascii("lyxtex"));
 417                         font.setSize(FONT_SIZE_TINY);
 418                         font.setColor(Color_mathmacrolabel);
 419                         Dimension namedim;
 420                         mathed_string_dim(font, name(), namedim);
 421
 422                         pi.pain.fillRectangle(x, y - dim.asc, dim.wid, 1 + namedim.height() + 1, Color_mathmacrobg);
 423                         pi.pain.text(x + 1, y - dim.asc + namedim.asc + 2, name(), font);
 424                         expx += (dim.wid - expanded_.cell(0).dimension(*pi.base.bv).width()) / 2;
 425                 }
 426
 427                 if (editing_[pi.base.bv]) {
 428                         pi.pain.enterMonochromeMode(Color_mathbg, Color_mathmacroblend);
 429                         expanded_.cell(0).draw(pi, expx, expy);
 430                         pi.pain.leaveMonochromeMode();
 431
 432                         if (drawBox)
 433                                 pi.pain.rectangle(x, y - dim.asc, dim.wid,
 434                                                   dim.height(), Color_mathmacroframe);
 435                 } else
 436                         expanded_.cell(0).draw(pi, expx, expy);
 437
 438                 if (!drawBox)
 439                         drawMarkers(pi, x, y);
 440         }
 441
 442         // edit mode changed?
 443         if (editing_[pi.base.bv] != editMode(pi.base.bv))
 444                 pi.base.bv->cursor().updateFlags(Update::SinglePar);
 445 }
 446
 447
 448 void MathMacro::drawSelection(PainterInfo & pi, int x, int y) const
 449 {
 450         // We may have 0 arguments, but InsetMathNest requires at least one.
 451         if (cells_.size() > 0)
 452                 InsetMathNest::drawSelection(pi, x, y);
 453 }
 454
 455
 456 void MathMacro::setDisplayMode(MathMacro::DisplayMode mode, int appetite)
 457 {
 458         if (displayMode_ != mode) {
 459                 // transfer name if changing from or to DISPLAY_UNFOLDED
 460                 if (mode == DISPLAY_UNFOLDED) {
 461                         cells_.resize(1);
 462                         asArray(name_, cell(0));
 463                 } else if (displayMode_ == DISPLAY_UNFOLDED) {
 464                         name_ = asString(cell(0));
 465                         cells_.resize(0);
 466                 }
 467
 468                 displayMode_ = mode;
 469                 needsUpdate_ = true;
 470         }
 471
 472         // the interactive init mode is non-greedy by default
 473         if (appetite == -1)
 474                 appetite_ = (mode == DISPLAY_INTERACTIVE_INIT) ? 0 : 9;
 475         else
 476                 appetite_ = size_t(appetite);
 477 }
 478
 479
 480 MathMacro::DisplayMode MathMacro::computeDisplayMode() const
 481 {
 482         if (nextFoldMode_ == true && macro_ && !macro_->locked())
 483                 return DISPLAY_NORMAL;
 484         else
 485                 return DISPLAY_UNFOLDED;
 486 }
 487
 488
 489 bool MathMacro::validName() const
 490 {
 491         docstring n = name();
 492
 493         // empty name?
 494         if (n.size() == 0)
 495                 return false;
 496
 497         // converting back and force doesn't swallow anything?
 498         /*MathData ma;
 499         asArray(n, ma);
 500         if (asString(ma) != n)
 501                 return false;*/
 502
 503         // valid characters?
 504         for (size_t i = 0; i<n.size(); ++i) {
 505                 if (!(n[i] >= 'a' && n[i] <= 'z')
 506                     && !(n[i] >= 'A' && n[i] <= 'Z')
 507                     && n[i] != '*')
 508                         return false;
 509         }
 510
 511         return true;
 512 }
 513
 514
 515 void MathMacro::validate(LaTeXFeatures & features) const
 516 {
 517         if (!requires_.empty())
 518                 features.require(requires_);
 519
 520         if (name() == "binom")
 521                 features.require("binom");
 522
 523         // validate the cells and the definition
 524         if (displayMode() == DISPLAY_NORMAL) {
 525                 definition_.validate(features);
 526                 InsetMathNest::validate(features);
 527         }
 528 }
 529
 530
 531 void MathMacro::edit(Cursor & cur, bool front, EntryDirection entry_from)
 532 {
 533         cur.updateFlags(Update::SinglePar);
 534         InsetMathNest::edit(cur, front, entry_from);
 535 }
 536
 537
 538 Inset * MathMacro::editXY(Cursor & cur, int x, int y)
 539 {
 540         // We may have 0 arguments, but InsetMathNest requires at least one.
 541         if (nargs() > 0) {
 542                 cur.updateFlags(Update::SinglePar);
 543                 return InsetMathNest::editXY(cur, x, y);
 544         } else
 545                 return this;
 546 }
 547
 548
 549 void MathMacro::removeArgument(Inset::pos_type pos) {
 550         if (displayMode_ == DISPLAY_NORMAL) {
 551                 LASSERT(size_t(pos) < cells_.size(), /**/);
 552                 cells_.erase(cells_.begin() + pos);
 553                 if (size_t(pos) < attachedArgsNum_)
 554                         --attachedArgsNum_;
 555                 if (size_t(pos) < optionals_) {
 556                         --optionals_;
 557                 }
 558
 559                 needsUpdate_ = true;
 560         }
 561 }
 562
 563
 564 void MathMacro::insertArgument(Inset::pos_type pos) {
 565         if (displayMode_ == DISPLAY_NORMAL) {
 566                 LASSERT(size_t(pos) <= cells_.size(), /**/);
 567                 cells_.insert(cells_.begin() + pos, MathData());
 568                 if (size_t(pos) < attachedArgsNum_)
 569                         ++attachedArgsNum_;
 570                 if (size_t(pos) < optionals_)
 571                         ++optionals_;
 572
 573                 needsUpdate_ = true;
 574         }
 575 }
 576
 577
 578 void MathMacro::detachArguments(vector<MathData> & args, bool strip)
 579 {
 580         LASSERT(displayMode_ == DISPLAY_NORMAL, /**/);
 581         args = cells_;
 582
 583         // strip off empty cells, but not more than arity-attachedArgsNum_
 584         if (strip) {
 585                 size_t i;
 586                 for (i = cells_.size(); i > attachedArgsNum_; --i)
 587                         if (!cell(i - 1).empty()) break;
 588                 args.resize(i);
 589         }
 590
 591         attachedArgsNum_ = 0;
 592         expanded_.cell(0) = MathData();
 593         cells_.resize(0);
 594
 595         needsUpdate_ = true;
 596 }
 597
 598
 599 void MathMacro::attachArguments(vector<MathData> const & args, size_t arity, int optionals)
 600 {
 601         LASSERT(displayMode_ == DISPLAY_NORMAL, /**/);
 602         cells_ = args;
 603         attachedArgsNum_ = args.size();
 604         cells_.resize(arity);
 605         expanded_.cell(0) = MathData();
 606         optionals_ = optionals;
 607
 608         needsUpdate_ = true;
 609 }
 610
 611
 612 bool MathMacro::idxFirst(Cursor & cur) const
 613 {
 614         cur.updateFlags(Update::SinglePar);
 615         return InsetMathNest::idxFirst(cur);
 616 }
 617
 618
 619 bool MathMacro::idxLast(Cursor & cur) const
 620 {
 621         cur.updateFlags(Update::SinglePar);
 622         return InsetMathNest::idxLast(cur);
 623 }
 624
 625
 626 bool MathMacro::notifyCursorLeaves(Cursor const & old, Cursor & cur)
 627 {
 628         if (displayMode_ == DISPLAY_UNFOLDED) {
 629                 docstring const & unfolded_name = name();
 630                 if (unfolded_name != name_) {
 631                         // The macro name was changed
 632                         cur = old;
 633                         bool left = cur.pos() == 0;
 634                         cur.recordUndoInset();
 635                         cur.popForward();
 636                         cur.backspace();
 637                         cur.insert(createInsetMath(unfolded_name, cur.buffer()));
 638                         if (left)
 639                                 cur.backwardPos();
 640                         cur.updateFlags(Update::Force);
 641                         return true;
 642                 }
 643         }
 644         cur.updateFlags(Update::Force);
 645         return InsetMathNest::notifyCursorLeaves(old, cur);
 646 }
 647
 648
 649 void MathMacro::fold(Cursor & cur)
 650 {
 651         if (!nextFoldMode_) {
 652                 nextFoldMode_ = true;
 653                 cur.updateFlags(Update::SinglePar);
 654         }
 655 }
 656
 657
 658 void MathMacro::unfold(Cursor & cur)
 659 {
 660         if (nextFoldMode_) {
 661                 nextFoldMode_ = false;
 662                 cur.updateFlags(Update::SinglePar);
 663         }
 664 }
 665
 666
 667 bool MathMacro::folded() const
 668 {
 669         return nextFoldMode_;
 670 }
 671
 672
 673 void MathMacro::write(WriteStream & os) const
 674 {
 675         MathEnsurer ensurer(os, macro_ != 0, true);
 676
 677         // non-normal mode
 678         if (displayMode_ != DISPLAY_NORMAL) {
 679                 os << "\\" << name();
 680                 if (name().size() != 1 || isAlphaASCII(name()[0]))
 681                         os.pendingSpace(true);
 682                 return;
 683         }
 684
 685         // normal mode
 686         LASSERT(macro_, /**/);
 687
 688         // optional arguments make macros fragile
 689         if (optionals_ > 0 && os.fragile())
 690                 os << "\\protect";
 691
 692         os << "\\" << name();
 693         bool first = true;
 694
 695         // Optional arguments:
 696         // First find last non-empty optional argument
 697         idx_type emptyOptFrom = 0;
 698         idx_type i = 0;
 699         for (; i < cells_.size() && i < optionals_; ++i) {
 700                 if (!cell(i).empty())
 701                         emptyOptFrom = i + 1;
 702         }
 703
 704         // print out optionals
 705         for (i=0; i < cells_.size() && i < emptyOptFrom; ++i) {
 706                 first = false;
 707                 os << "[" << cell(i) << "]";
 708         }
 709
 710         // skip the tailing empty optionals
 711         i = optionals_;
 712
 713         // Print remaining macros
 714         for (; i < cells_.size(); ++i) {
 715                 if (cell(i).size() == 1
 716                         && cell(i)[0].nucleus()->asCharInset()
 717                         && cell(i)[0].nucleus()->asCharInset()->getChar() < 0x80) {
 718                         if (first)
 719                                 os << " ";
 720                         os << cell(i);
 721                 } else
 722                         os << "{" << cell(i) << "}";
 723                 first = false;
 724         }
 725
 726         // add space if there was no argument
 727         if (first)
 728                 os.pendingSpace(true);
 729 }
 730
 731
 732 void MathMacro::maple(MapleStream & os) const
 733 {
 734         lyx::maple(expanded_.cell(0), os);
 735 }
 736
 737
 738 void MathMacro::mathmlize(MathStream & os) const
 739 {
 740         lyx::mathmlize(expanded_.cell(0), os);
 741 }
 742
 743
 744 void MathMacro::octave(OctaveStream & os) const
 745 {
 746         lyx::octave(expanded_.cell(0), os);
 747 }
 748
 749
 750 void MathMacro::infoize(odocstream & os) const
 751 {
 752         os << "Macro: " << name();
 753 }
 754
 755
 756 void MathMacro::infoize2(odocstream & os) const
 757 {
 758         os << "Macro: " << name();
 759
 760 }
 761
 762
 763 bool MathMacro::completionSupported(Cursor const & cur) const
 764 {
 765         if (displayMode() != DISPLAY_UNFOLDED)
 766                 return InsetMathNest::completionSupported(cur);
 767
 768         return lyxrc.completion_popup_math
 769                 && displayMode() == DISPLAY_UNFOLDED
 770                 && cur.bv().cursor().pos() == int(name().size());
 771 }
 772
 773
 774 bool MathMacro::inlineCompletionSupported(Cursor const & cur) const
 775 {
 776         if (displayMode() != DISPLAY_UNFOLDED)
 777                 return InsetMathNest::inlineCompletionSupported(cur);
 778
 779         return lyxrc.completion_inline_math
 780                 && displayMode() == DISPLAY_UNFOLDED
 781                 && cur.bv().cursor().pos() == int(name().size());
 782 }
 783
 784
 785 bool MathMacro::automaticInlineCompletion() const
 786 {
 787         if (displayMode() != DISPLAY_UNFOLDED)
 788                 return InsetMathNest::automaticInlineCompletion();
 789
 790         return lyxrc.completion_inline_math;
 791 }
 792
 793
 794 bool MathMacro::automaticPopupCompletion() const
 795 {
 796         if (displayMode() != DISPLAY_UNFOLDED)
 797                 return InsetMathNest::automaticPopupCompletion();
 798
 799         return lyxrc.completion_popup_math;
 800 }
 801
 802
 803 CompletionList const *
 804 MathMacro::createCompletionList(Cursor const & cur) const
 805 {
 806         if (displayMode() != DISPLAY_UNFOLDED)
 807                 return InsetMathNest::createCompletionList(cur);
 808
 809         return new MathCompletionList(cur.bv().cursor());
 810 }
 811
 812
 813 docstring MathMacro::completionPrefix(Cursor const & cur) const
 814 {
 815         if (displayMode() != DISPLAY_UNFOLDED)
 816                 return InsetMathNest::completionPrefix(cur);
 817
 818         if (!completionSupported(cur))
 819                 return docstring();
 820
 821         return "\\" + name();
 822 }
 823
 824
 825 bool MathMacro::insertCompletion(Cursor & cur, docstring const & s,
 826                                         bool finished)
 827 {
 828         if (displayMode() != DISPLAY_UNFOLDED)
 829                 return InsetMathNest::insertCompletion(cur, s, finished);
 830
 831         if (!completionSupported(cur))
 832                 return false;
 833
 834         // append completion
 835         docstring newName = name() + s;
 836         asArray(newName, cell(0));
 837         cur.bv().cursor().pos() = name().size();
 838         cur.updateFlags(Update::SinglePar);
 839
 840         // finish macro
 841         if (finished) {
 842                 cur.bv().cursor().pop();
 843                 ++cur.bv().cursor().pos();
 844                 cur.updateFlags(Update::SinglePar);
 845         }
 846
 847         return true;
 848 }
 849
 850
 851 void MathMacro::completionPosAndDim(Cursor const & cur, int & x, int & y,
 852         Dimension & dim) const
 853 {
 854         if (displayMode() != DISPLAY_UNFOLDED)
 855                 InsetMathNest::completionPosAndDim(cur, x, y, dim);
 856
 857         // get inset dimensions
 858         dim = cur.bv().coordCache().insets().dim(this);
 859         // FIXME: these 3 are no accurate, but should depend on the font.
 860         // Now the popup jumps down if you enter a char with descent > 0.
 861         dim.des += 3;
 862         dim.asc += 3;
 863
 864         // and position
 865         Point xy
 866         = cur.bv().coordCache().insets().xy(this);
 867         x = xy.x_;
 868         y = xy.y_;
 869 }
 870
 871
 872 } // namespace lyx