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