src/RowPainter.cpp

   1 /**
   2  * \file RowPainter.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author various
   7  * \author John Levon
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "RowPainter.h"
  15
  16 #include "Buffer.h"
  17 #include "CoordCache.h"
  18 #include "Cursor.h"
  19 #include "BufferParams.h"
  20 #include "BufferView.h"
  21 #include "Bullet.h"
  22 #include "Changes.h"
  23 #include "Language.h"
  24 #include "Layout.h"
  25 #include "LyXRC.h"
  26 #include "Row.h"
  27 #include "MetricsInfo.h"
  28 #include "Paragraph.h"
  29 #include "ParagraphList.h"
  30 #include "ParagraphParameters.h"
  31 #include "Text.h"
  32 #include "TextMetrics.h"
  33
  34 #include "frontends/FontMetrics.h"
  35 #include "frontends/Painter.h"
  36
  37 #include "support/debug.h"
  38 #include "support/gettext.h"
  39 #include "support/lassert.h"
  40
  41 #include <algorithm>
  42
  43 using namespace std;
  44
  45 namespace lyx {
  46
  47 using frontend::Painter;
  48 using frontend::FontMetrics;
  49
  50
  51 RowPainter::RowPainter(PainterInfo & pi,
  52         Text const & text, Row const & row, int x, int y)
  53         : pi_(pi), text_(text),
  54           tm_(pi_.base.bv->textMetrics(&text)),
  55           row_(row), par_(text.paragraphs()[row.pit()]),
  56           xo_(x), yo_(y)
  57 {
  58         x_ = row_.left_margin + xo_;
  59
  60         //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
  61         //row_.dump();
  62
  63         LBUFERR(row.pit() >= 0);
  64         LBUFERR(row.pit() < int(text.paragraphs().size()));
  65 }
  66
  67
  68 FontInfo RowPainter::labelFont(bool end) const
  69 {
  70         FontInfo f = text_.labelFont(par_);
  71         // selected text?
  72         if ((end ? row_.end_margin_sel : row_.begin_margin_sel)
  73             || pi_.selected)
  74                 f.setPaintColor(Color_selectiontext);
  75         return f;
  76 }
  77
  78
  79 // If you want to debug inset metrics uncomment the following line:
  80 //#define DEBUG_METRICS
  81 // This draws green lines around each inset.
  82
  83
  84 void RowPainter::paintInset(Row::Element const & e) const
  85 {
  86         // Handle selection (first left/right, then middle).
  87         pi_.selected_left = pi_.selected
  88                             || (row_.isRTL() ? row_.end_margin_sel : row_.begin_margin_sel);
  89         pi_.selected_right = pi_.selected
  90                              || (row_.isRTL() ? row_.begin_margin_sel : row_.end_margin_sel);
  91         bool const pi_selected = pi_.selected;
  92         Cursor const & cur = pi_.base.bv->cursor();
  93         if (cur.selection() && cur.text() == &text_
  94                 && cur.normalAnchor().text() == &text_)
  95                 pi_.selected = row_.sel_beg <= e.pos && row_.sel_end > e.pos;
  96
  97         LASSERT(e.inset, return);
  98         // Backup full_repaint status because some insets (InsetTabular)
  99         // requires a full repaint
 100         bool const pi_full_repaint = pi_.full_repaint;
 101         bool const pi_do_spellcheck = pi_.do_spellcheck;
 102         Change const pi_change = pi_.change;
 103
 104         pi_.base.font = e.inset->inheritFont() ? e.font.fontInfo() :
 105                 pi_.base.bv->buffer().params().getFont().fontInfo();
 106         pi_.ltr_pos = !e.font.isVisibleRightToLeft();
 107         pi_.change = pi_.change.changed() ? pi_.change : e.change;
 108         pi_.do_spellcheck &= e.inset->allowSpellCheck();
 109
 110         int const x1 = int(x_);
 111         pi_.base.bv->coordCache().insets().add(e.inset, x1, yo_);
 112         // insets are painted completely. Recursive
 113         // FIXME: it is wrong to completely paint the background
 114         // if we want to do single row painting.
 115         e.inset->drawBackground(pi_, x1, yo_);
 116         e.inset->drawSelection(pi_, x1, yo_);
 117         e.inset->draw(pi_, x1, yo_);
 118         paintTextDecoration(e);
 119
 120         // Restore full_repaint status.
 121         pi_.full_repaint = pi_full_repaint;
 122         pi_.change = pi_change;
 123         pi_.do_spellcheck = pi_do_spellcheck;
 124         pi_.selected = pi_selected;
 125
 126 #ifdef DEBUG_METRICS
 127         Dimension const & dim = pi_.base.bv->coordCache().insets().dim(e.inset);
 128         int const x2 = x1 + dim.wid;
 129         int const y1 = yo_ + dim.des;
 130         int const y2 = yo_ - dim.asc;
 131         pi_.pain.line(x1, y1, x1, y2, Color_green);
 132         pi_.pain.line(x1, y1, x2, y1, Color_green);
 133         pi_.pain.line(x2, y1, x2, y2, Color_green);
 134         pi_.pain.line(x1, y2, x2, y2, Color_green);
 135 #endif
 136 }
 137
 138
 139 void RowPainter::paintLanguageMarkings(Row::Element const & e) const
 140 {
 141         paintForeignMark(e);
 142         paintNoSpellingMark(e);
 143 }
 144
 145
 146 void RowPainter::paintForeignMark(Row::Element const & e) const
 147 {
 148         Language const * lang = e.font.language();
 149         if (!lyxrc.mark_foreign_language)
 150                 return;
 151         if (lang == latex_language)
 152                 return;
 153         if (lang == pi_.base.bv->buffer().params().language)
 154                 return;
 155
 156         int const desc = e.inset ? e.dim.descent() : 0;
 157         int const y = yo_ + min(3 * pi_.base.solidLineOffset() / 2 + desc,
 158                                 row_.descent() - 1);
 159         pi_.pain.line(int(x_), y, int(x_ + e.full_width() - 1), y, Color_language,
 160                       Painter::line_solid, pi_.base.solidLineThickness());
 161 }
 162
 163
 164 void RowPainter::paintNoSpellingMark(Row::Element const & e) const
 165 {
 166         //if (!lyxrc.mark_no_spelling)
 167         //      return;
 168         if (e.font.language() == latex_language)
 169                 return;
 170         if (e.font.fontInfo().nospellcheck() != FONT_ON)
 171                 return;
 172
 173         // We at the same voffset than the misspelled mark, since
 174         // these two are mutually exclusive
 175         int const desc = e.inset ? e.dim.descent() : 0;
 176         int y = yo_ + pi_.base.solidLineOffset() + desc
 177                 + pi_.base.solidLineThickness()
 178                 + (e.change.changed() ? pi_.base.solidLineThickness() + 1 : 0)
 179                 + 1;
 180         // Make sure that the mark does not go below the row rectangle
 181         y = min(y, yo_ + row_.descent() - 1);
 182
 183         pi_.pain.line(int(x_), y, int(x_ + e.full_width()), y, Color_language,
 184                       Painter::line_onoffdash, pi_.base.solidLineThickness());
 185 }
 186
 187
 188 void RowPainter::paintMisspelledMark(Row::Element const & e) const
 189 {
 190         if (e.font.fontInfo().nospellcheck() == FONT_ON)
 191                 return;
 192         // if changed the misspelled marker gets placed slightly lower than normal
 193         // to avoid drawing at the same vertical offset
 194         FontMetrics const & fm = theFontMetrics(e.font);
 195         int const thickness = max(fm.lineWidth(), 2);
 196         int y = yo_ + pi_.base.solidLineOffset() + pi_.base.solidLineThickness()
 197                 + (e.change.changed() ? pi_.base.solidLineThickness() + 1 : 0)
 198                 + 1 + thickness / 2;
 199         // Make sure that the mark does not go below the row rectangle
 200         y = min(y, yo_ + row_.descent() - 1);
 201
 202         //FIXME: this could be computed only once, it is probably not costly.
 203         // check for cursor position
 204         // don't draw misspelled marker for words at cursor position
 205         // we don't want to disturb the process of text editing
 206         DocIterator const nw = pi_.base.bv->cursor().newWord();
 207         pos_type cpos = -1;
 208         if (!nw.empty() && par_.id() == nw.paragraph().id()) {
 209                 cpos = nw.pos();
 210                 if (cpos > 0 && cpos == par_.size() && !par_.isWordSeparator(cpos-1))
 211                         --cpos;
 212                 else if (cpos > 0 && par_.isWordSeparator(cpos))
 213                         --cpos;
 214         }
 215
 216         pos_type pos = e.pos;
 217         while (pos < e.pos + pos_type(e.str.length())) {
 218                 if (!par_.isMisspelled(pos)) {
 219                         ++pos;
 220                         continue;
 221                 }
 222
 223                 FontSpan const & range = par_.getSpellRange(pos);
 224
 225                 // Skip element which are being edited
 226                 if (range.contains(cpos)) {
 227                         // the range includes the last element
 228                         pos = range.last + 1;
 229                         continue;
 230                 }
 231
 232                 int x1 = fm.pos2x(e.str, range.first - e.pos,
 233                                   e.isRTL(), e.extra);
 234                 int x2 = fm.pos2x(e.str, min(range.last - e.pos + 1,
 235                                                                          pos_type(e.str.length())),
 236                                                                          e.isRTL(), e.extra);
 237                 if (x1 > x2)
 238                         swap(x1, x2);
 239
 240                 pi_.pain.line(int(x_ + x1), y, int(x_ + x2), y,
 241                               Color_error,
 242                               Painter::line_onoffdash, thickness);
 243                 pos = range.last + 1;
 244         }
 245 }
 246
 247
 248 void RowPainter::paintStringAndSel(Row::Element const & e) const
 249 {
 250         // at least part of text selected?
 251         bool const some_sel = (e.endpos >= row_.sel_beg && e.pos < row_.sel_end)
 252                 || pi_.selected;
 253         // all the text selected?
 254         bool const all_sel = (e.pos >= row_.sel_beg && e.endpos < row_.sel_end)
 255                 || pi_.selected;
 256
 257         if (all_sel || e.change.changed()) {
 258                 Font copy = e.font;
 259                 Color const col = e.change.changed() ? e.change.color()
 260                                                      : Color_selectiontext;
 261                 copy.fontInfo().setPaintColor(col);
 262                 pi_.pain.text(int(x_), yo_, e.str, copy, e.extra, e.full_width());
 263         } else if (!some_sel) {
 264                 pi_.pain.text(int(x_), yo_, e.str, e.font, e.extra, e.full_width());
 265         } else {
 266                 pi_.pain.text(int(x_), yo_, e.str, e.font, Color_selectiontext,
 267                               max(row_.sel_beg, e.pos) - e.pos,
 268                               min(row_.sel_end, e.endpos) - e.pos,
 269                               e.extra, e.full_width());
 270         }
 271 }
 272
 273
 274 void RowPainter::paintTextDecoration(Row::Element const & e) const
 275 {
 276         // element selected?
 277         bool const sel = (e.pos >= row_.sel_beg && e.endpos <= row_.sel_end)
 278                 || pi_.selected;
 279         FontInfo copy = e.font.fontInfo();
 280         if (sel || e.change.changed()) {
 281                 Color const col = e.change.changed() ? e.change.color()
 282                                                      : Color_selectiontext;
 283                 copy.setPaintColor(col);
 284         }
 285         pi_.pain.textDecoration(copy, int(x_), yo_, int(e.full_width()));
 286 }
 287
 288
 289 void RowPainter::paintChange(Row::Element const & e) const
 290 {
 291         e.change.paintCue(pi_, x_, yo_, x_ + e.full_width(), e.font.fontInfo());
 292 }
 293
 294
 295 void RowPainter::paintChangeBar() const
 296 {
 297         int const x = pi_.base.bv->leftMargin() - pi_.base.bv->zoomedPixels(7);
 298         Dimension const & cdim = row_.contents_dim();
 299         pi_.pain.fillRectangle(x, yo_ - cdim.ascent(),
 300                                3, cdim.height(), Color_changebar);
 301 }
 302
 303
 304 void RowPainter::paintAppendix() const
 305 {
 306         // only draw the appendix frame once (for the main text)
 307         if (!par_.params().appendix() || !text_.isMainText())
 308                 return;
 309
 310         int y = yo_ - row_.ascent();
 311
 312         if (par_.params().startOfAppendix())
 313                 y += 2 * defaultRowHeight();
 314
 315         pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
 316         pi_.pain.line(tm_.width() - 2, y, tm_.width() - 2, yo_ + row_.height(), Color_appendix);
 317 }
 318
 319
 320 void RowPainter::paintDepthBar() const
 321 {
 322         depth_type const depth = par_.getDepth();
 323         ParagraphList const & pars = text_.paragraphs();
 324
 325         if (depth <= 0)
 326                 return;
 327
 328         depth_type prev_depth = 0;
 329         if (!tm_.isFirstRow(row_)) {
 330                 pit_type pit2 = row_.pit();
 331                 if (row_.pos() == 0)
 332                         --pit2;
 333                 prev_depth = pars[pit2].getDepth();
 334         }
 335
 336         depth_type next_depth = 0;
 337         if (!tm_.isLastRow(row_)) {
 338                 pit_type pit2 = row_.pit();
 339                 if (row_.endpos() >= pars[pit2].size())
 340                         ++pit2;
 341                 next_depth = pars[pit2].getDepth();
 342         }
 343
 344         for (depth_type i = 1; i <= depth; ++i) {
 345                 int const w = nestMargin() / 5;
 346                 int x = int(xo_) + w * i;
 347                 // only consider the changebar space if we're drawing outermost text
 348                 if (text_.isMainText())
 349                         x += pi_.base.bv->leftMargin() - changebarMargin();
 350
 351                 int const starty = yo_ - row_.ascent();
 352                 int const h =  row_.height() - 1 - (i - next_depth - 1) * 3;
 353
 354                 pi_.pain.line(x, starty, x, starty + h, Color_depthbar);
 355
 356                 if (i > prev_depth)
 357                         pi_.pain.fillRectangle(x, starty, w, 2, Color_depthbar);
 358                 if (i > next_depth)
 359                         pi_.pain.fillRectangle(x, starty + h, w, 2, Color_depthbar);
 360         }
 361 }
 362
 363
 364 void RowPainter::paintAppendixStart(int y) const
 365 {
 366         FontInfo pb_font = sane_font;
 367         pb_font.setColor(Color_appendix);
 368         pb_font.decSize();
 369
 370         int w = 0;
 371         int a = 0;
 372         int d = 0;
 373
 374         docstring const label = _("Appendix");
 375         theFontMetrics(pb_font).rectText(label, w, a, d);
 376
 377         int const text_start = int(xo_ + (tm_.width() - w) / 2);
 378         int const text_end = text_start + w;
 379
 380         pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
 381
 382         pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
 383         pi_.pain.line(text_end, y, int(xo_ + tm_.width() - 2), y, Color_appendix);
 384 }
 385
 386
 387 void RowPainter::paintTooLargeMarks(bool const left, bool const right) const
 388 {
 389         int const lwid = pi_.base.dottedLineThickness();
 390         Dimension const & cdim = row_.contents_dim();
 391         if (left) {
 392                 int const x = pi_.base.bv->leftMargin() - lwid;
 393                 pi_.pain.line(x, yo_ - cdim.ascent(), x, yo_ + cdim.descent(),
 394                               Color_scroll, Painter::line_onoffdash, lwid);
 395         }
 396         if (right) {
 397                 int const x = pi_.base.bv->workWidth() - pi_.base.bv->rightMargin();
 398                 pi_.pain.line(x, yo_ - cdim.ascent(), x, yo_ + cdim.descent(),
 399                               Color_scroll, Painter::line_onoffdash, lwid);
 400         }
 401 }
 402
 403
 404 void RowPainter::paintFirst() const
 405 {
 406         Layout const & layout = par_.layout();
 407
 408         // start of appendix?
 409         if (par_.params().startOfAppendix())
 410             paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
 411
 412         bool const is_first =
 413                 text_.isFirstInSequence(row_.pit()) || !layout.isParagraphGroup();
 414         //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << endl;
 415
 416         if (layout.labelIsInline()
 417             && (layout.labeltype != LABEL_STATIC || is_first))
 418                 paintLabel();
 419         else if (is_first && layout.labelIsAbove())
 420                 paintTopLevelLabel();
 421 }
 422
 423
 424 void RowPainter::paintLabel() const
 425 {
 426         docstring const & str = par_.labelString();
 427         if (str.empty())
 428                 return;
 429
 430         // different font for label separation and string
 431         Layout const & layout = par_.layout();
 432         FontInfo const font = labelFont(false);
 433         FontMetrics const & fm = theFontMetrics(font);
 434         FontInfo lfont = font;
 435
 436         // bullet?
 437         if (layout.labeltype == LABEL_ITEMIZE && par_.itemdepth < 4) {
 438                 // get label font size from document properties
 439                 lfont.setSize(pi_.base.bv->buffer().params().user_defined_bullet(par_.itemdepth).getFontSize());
 440                 // realize to avoid assertion
 441                 lfont.realize(sane_font);
 442         }
 443
 444         FontMetrics const & lfm = theFontMetrics(lfont);
 445
 446         int const x = row_.isRTL() ? row_.width() + fm.width(layout.labelsep)
 447                                    : row_.left_margin - fm.width(layout.labelsep) - lfm.width(str);
 448
 449         pi_.pain.text(int(xo_) + x, yo_, str, lfont);
 450 }
 451
 452
 453 void RowPainter::paintTopLevelLabel() const
 454 {
 455         BufferParams const & bparams = pi_.base.bv->buffer().params();
 456         ParagraphParameters const & pparams = par_.params();
 457         Layout const & layout = par_.layout();
 458         FontInfo const font = labelFont(false);
 459         docstring const str = par_.labelString();
 460         if (str.empty())
 461                 return;
 462
 463         double spacing_val = 1.0;
 464         if (!pparams.spacing().isDefault())
 465                 spacing_val = pparams.spacing().getValue();
 466         else
 467                 spacing_val = bparams.spacing().getValue();
 468
 469         FontMetrics const & fm = theFontMetrics(font);
 470
 471         int const labeladdon = int(fm.maxHeight()
 472                 * layout.spacing.getValue() * spacing_val);
 473
 474         int maxdesc =
 475                 int(fm.maxDescent() * layout.spacing.getValue() * spacing_val
 476                 + (layout.labelbottomsep * defaultRowHeight()));
 477
 478         double x = x_;
 479         if (layout.labeltype == LABEL_CENTERED) {
 480                 // The 'size + 1' is weird, but it makes sure that we get the
 481                 // left margin of non-first row.
 482                 int leftm = tm_.leftMargin(row_.pit(), par_.size() + 1);
 483                 int rightm = tm_.rightMargin(row_.pit());
 484                 if (row_.isRTL())
 485                         swap(leftm, rightm);
 486                 /* Currently, x points at row_.left_margin (which contains the
 487                  * indent). First remove that, and then center the title with
 488                  * respect to the left and right margins.
 489                  */
 490                 x += leftm - row_.left_margin + (tm_.width() - leftm -rightm) / 2
 491                         - fm.width(str) / 2;
 492         } else if (row_.isRTL()) {
 493                 x = xo_ + tm_.width() - row_.right_margin - fm.width(str);
 494         }
 495         pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
 496 }
 497
 498
 499 void RowPainter::paintLast() const
 500 {
 501         int const endlabel = text_.getEndLabel(row_.pit());
 502         switch (endlabel) {
 503         case END_LABEL_BOX:
 504         case END_LABEL_FILLED_BOX: {
 505                 FontInfo font = labelFont(true);
 506                 if (font.realColor() != Color_selectiontext)
 507                         font.setPaintColor(Color_eolmarker);
 508                 FontMetrics const & fm = theFontMetrics(font);
 509                 int const size = int(0.75 * fm.maxAscent());
 510                 int const y = yo_ - size;
 511
 512                 // If needed, move the box a bit to avoid overlapping with text.
 513                 int x = 0;
 514                 if (row_.isRTL()) {
 515                         int const normal_x = nestMargin() + changebarMargin();
 516                         x = min(normal_x, row_.left_margin - size - Inset::textOffset(pi_.base.bv));
 517                 } else {
 518                         int const normal_x = tm_.width() - row_.right_margin
 519                                 - size - Inset::textOffset(pi_.base.bv);
 520                         x = max(normal_x, row_.width());
 521                 }
 522
 523                 if (endlabel == END_LABEL_BOX)
 524                         pi_.pain.rectangle(int(xo_) + x, y, size, size, font.realColor());
 525                 else
 526                         pi_.pain.fillRectangle(int(xo_) + x, y, size, size, font.realColor());
 527                 break;
 528         }
 529
 530         case END_LABEL_STATIC: {
 531                 FontInfo const font = labelFont(true);
 532                 FontMetrics const & fm = theFontMetrics(font);
 533                 docstring const & str = par_.layout().endlabelstring();
 534                 double const x = row_.isRTL() ? row_.left_margin - fm.width(str) : row_.width();
 535                 pi_.pain.text(xo_ + x, yo_, str, font);
 536                 break;
 537         }
 538
 539         case END_LABEL_NO_LABEL:
 540                 break;
 541         }
 542 }
 543
 544
 545 void RowPainter::paintOnlyInsets()
 546 {
 547         for (Row::Element const & e : row_) {
 548                 if (e.type == Row::INSET) {
 549                         paintInset(e);
 550                         // The markings of foreign languages
 551                         // and of text ignored for spellchecking
 552                         paintLanguageMarkings(e);
 553                         // change tracking (not for insets that handle it themselves)
 554                         if (!e.inset->canPaintChange(*pi_.base.bv))
 555                                 paintChange(e);
 556                 }
 557
 558                 x_ += e.full_width();
 559         }
 560 }
 561
 562
 563 void RowPainter::paintText()
 564 {
 565         for (Row::Element const & e : row_) {
 566                 switch (e.type) {
 567                 case Row::STRING:
 568                 case Row::VIRTUAL:
 569                         paintStringAndSel(e);
 570
 571                         // Paint the spelling marks if enabled.
 572                         if (lyxrc.spellcheck_continuously && pi_.do_spellcheck && !pi_.pain.isNull())
 573                                 paintMisspelledMark(e);
 574                         break;
 575
 576                 case Row::INSET:
 577                         paintInset(e);
 578                         break;
 579
 580                 case Row::SPACE:
 581                 case Row::MARGINSPACE:
 582                         paintTextDecoration(e);
 583                 }
 584
 585                 // The markings of foreign languages
 586                 // and of text ignored for spellchecking
 587                 paintLanguageMarkings(e);
 588
 589                 // change tracking (not for insets that handle it themselves)
 590                 if (e.type != Row::INSET || ! e.inset->canPaintChange(*pi_.base.bv))
 591                         paintChange(e);
 592
 593                 x_ += e.full_width();
 594         }
 595 }
 596
 597
 598 void RowPainter::paintSelection() const
 599 {
 600         if (!row_.selection())
 601                 return;
 602
 603         int const y1 = yo_ - row_.contents_dim().asc;
 604         int const y2 = yo_ + row_.contents_dim().des;
 605
 606         // The top selection
 607         if (row_.begin_margin_sel)
 608                 pi_.pain.fillRectangle(int(xo_), yo_ - row_.ascent(),
 609                                        tm_.width(), row_.ascent() - row_.contents_dim().asc,
 610                                        Color_selection);
 611
 612         // The left margin selection
 613         if (row_.isRTL() ? row_.end_margin_sel : row_.begin_margin_sel)
 614                 pi_.pain.fillRectangle(int(xo_), y1, row_.left_margin, y2 - y1,
 615                                        Color_selection);
 616
 617         // go through row and draw from RTL boundary to RTL boundary
 618         double x = xo_ + row_.left_margin;
 619         for (auto const & e : row_) {
 620                 // These are the same tests as in paintStringAndSel, except
 621                 // that all_sel has an additional clause that triggers for end
 622                 // of paragraph markers. The clause was not used in
 623                 // paintStringAndSel to avoid changing the drawing color.
 624                 // at least part of text selected?
 625                 bool const some_sel = (e.endpos >= row_.sel_beg && e.pos < row_.sel_end)
 626                         || pi_.selected;
 627                 // all the text selected?
 628                 bool const all_sel = (e.pos >= row_.sel_beg && e.endpos < row_.sel_end)
 629                     || (e.isVirtual() && e.pos == row_.endpos() && row_.end_margin_sel)
 630                     || pi_.selected;
 631
 632                 if (all_sel) {
 633                         // the 3rd argument is written like that to avoid rounding issues
 634                         pi_.pain.fillRectangle(int(x), y1,
 635                                                int(x + e.full_width()) - int(x), y2 - y1,
 636                                                Color_selection);
 637                 } else if (some_sel) {
 638                         pos_type const from = min(max(row_.sel_beg, e.pos), e.endpos);
 639                         pos_type const to = max(min(row_.sel_end, e.endpos), e.pos);
 640                         double x1 = e.pos2x(from);
 641                         double x2 = e.pos2x(to);
 642                         if (x1 > x2)
 643                                 swap(x1, x2);
 644                         // the 3rd argument is written like that to avoid rounding issues
 645                         pi_.pain.fillRectangle(int(x + x1), y1, int(x2 + x) - int(x1 + x),
 646                                                y2 - y1, Color_selection);
 647                 }
 648                 x += e.full_width();
 649         }
 650
 651         // the right margin selection
 652         if (row_.isRTL() ? row_.begin_margin_sel : row_.end_margin_sel)
 653                 pi_.pain.fillRectangle(int(x), y1,
 654                                        int(xo_ + tm_.width()) - int(x), y2 - y1,
 655                                        Color_selection);
 656         // The bottom selection
 657         if (row_.end_margin_sel)
 658                 pi_.pain.fillRectangle(int(xo_), yo_ + row_.contents_dim().des,
 659                                        tm_.width(), row_.descent() - row_.contents_dim().des,
 660                                        Color_selection);
 661 }
 662
 663
 664 void RowPainter::paintBookmark(int num) const
 665 {
 666         BufferView const * bv = pi_.base.bv;
 667         FontInfo fi = bv->buffer().params().getFont().fontInfo();
 668         FontMetrics const & fm = theFontMetrics(fi);
 669         fi.setColor(Color_bookmark);
 670         // ❶ U+2776 DINGBAT NEGATIVE CIRCLED DIGIT ONE
 671         char_type const ch = 0x2775 + num;
 672         int const x = row_.isRTL()
 673                 ? bv->workWidth() - bv->rightMargin() + (bv->defaultMargin() - fm.width(ch)) / 2
 674                 : bv->leftMargin() - (bv->defaultMargin() + fm.width(ch)) / 2;
 675         pi_.pain.text(x, yo_, ch, fi);
 676 }
 677
 678
 679 } // namespace lyx