]> git.lyx.org Git - lyx.git/blobdiff - src/RowPainter.cpp
Account for old versions of Pygments
[lyx.git] / src / RowPainter.cpp
index f54cf2853bb6919e2e7893375d75edbdf600c2ec..55155716bea43c2a7afac6cc6055210b0a3c2de7 100644 (file)
@@ -26,7 +26,6 @@
 #include "Row.h"
 #include "MetricsInfo.h"
 #include "Paragraph.h"
-#include "ParagraphMetrics.h"
 #include "ParagraphParameters.h"
 #include "TextMetrics.h"
 #include "VSpace.h"
@@ -45,6 +44,8 @@
 #include "support/lassert.h"
 #include <boost/crc.hpp>
 
+#include <stdlib.h>
+
 using namespace std;
 
 namespace lyx {
@@ -54,40 +55,21 @@ using frontend::FontMetrics;
 
 
 RowPainter::RowPainter(PainterInfo & pi,
-       Text const & text, pit_type pit, Row const & row, int x, int y)
+       Text const & text, Row const & row, int x, int y)
        : pi_(pi), text_(text),
-         text_metrics_(pi_.base.bv->textMetrics(&text)),
+         tm_(pi_.base.bv->textMetrics(&text)),
          pars_(text.paragraphs()),
-         row_(row), pit_(pit), par_(text.paragraphs()[pit]),
-         pm_(text_metrics_.parMetrics(pit)), change_(pi_.change_),
-         xo_(x), yo_(y), width_(text_metrics_.width()),
-         solid_line_thickness_(1), solid_line_offset_(1),
-         dotted_line_thickness_(1), dotted_line_offset_(2)
+         row_(row), par_(text.paragraphs()[row.pit()]),
+         change_(pi_.change_),
+         xo_(x), yo_(y)
 {
-       if (lyxrc.zoom >= 200) {
-               // derive the line thickness from zoom factor
-               // the zoom is given in percent
-               // (increase thickness at 250%, 450% etc.)
-               solid_line_thickness_ = (lyxrc.zoom + 50) / 200;
-               // adjust line_offset_ too
-               solid_line_offset_ = 1 + solid_line_thickness_ / 2;
-       }
-       if (lyxrc.zoom >= 100) {
-               // derive the line thickness from zoom factor
-               // the zoom is given in percent
-               // (increase thickness at 150%, 250% etc.)
-               dotted_line_thickness_ = (lyxrc.zoom + 50) / 100;
-               // adjust line_offset_ too
-               dotted_line_offset_ = 1 + dotted_line_thickness_ / 2;
-       }
-
        x_ = row_.left_margin + xo_;
 
        //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
        //row_.dump();
 
-       LBUFERR(pit >= 0);
-       LBUFERR(pit < int(text.paragraphs().size()));
+       LBUFERR(row.pit() >= 0);
+       LBUFERR(row.pit() < int(text.paragraphs().size()));
 }
 
 
@@ -106,44 +88,36 @@ FontInfo RowPainter::labelFont() const
 // This draws green lines around each inset.
 
 
-void RowPainter::paintInset(Inset const * inset, Font const & font,
-                            Change const & change,
-                            pos_type const pos)
+void RowPainter::paintInset(Row::Element const & e) const
 {
        // Handle selection
        bool const pi_selected = pi_.selected;
        Cursor const & cur = pi_.base.bv->cursor();
        if (cur.selection() && cur.text() == &text_
                && cur.normalAnchor().text() == &text_)
-               pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
+               pi_.selected = row_.sel_beg <= e.pos && row_.sel_end > e.pos;
 
-       LASSERT(inset, return);
+       LASSERT(e.inset, return);
        // Backup full_repaint status because some insets (InsetTabular)
        // requires a full repaint
        bool const pi_full_repaint = pi_.full_repaint;
        bool const pi_do_spellcheck = pi_.do_spellcheck;
        Change const pi_change = pi_.change_;
 
-       pi_.base.font = inset->inheritFont() ? font.fontInfo() :
+       pi_.base.font = e.inset->inheritFont() ? e.font.fontInfo() :
                pi_.base.bv->buffer().params().getFont().fontInfo();
-       pi_.ltr_pos = !font.isVisibleRightToLeft();
-       pi_.change_ = change_.changed() ? change_ : change;
-       pi_.do_spellcheck &= inset->allowSpellCheck();
+       pi_.ltr_pos = !e.font.isVisibleRightToLeft();
+       pi_.change_ = change_.changed() ? change_ : e.change;
+       pi_.do_spellcheck &= e.inset->allowSpellCheck();
 
        int const x1 = int(x_);
-       pi_.base.bv->coordCache().insets().add(inset, x1, yo_);
+       pi_.base.bv->coordCache().insets().add(e.inset, x1, yo_);
        // insets are painted completely. Recursive
        // FIXME: it is wrong to completely paint the background
        // if we want to do single row painting.
-       inset->drawBackground(pi_, x1, yo_);
-       inset->drawSelection(pi_, x1, yo_);
-       inset->draw(pi_, x1, yo_);
-
-       Dimension const & dim = pm_.insetDimension(inset);
-
-       paintForeignMark(x_, font.language(), dim.descent());
-
-       x_ += dim.width();
+       e.inset->drawBackground(pi_, x1, yo_);
+       e.inset->drawSelection(pi_, x1, yo_);
+       e.inset->draw(pi_, x1, yo_);
 
        // Restore full_repaint status.
        pi_.full_repaint = pi_full_repaint;
@@ -152,6 +126,7 @@ void RowPainter::paintInset(Inset const * inset, Font const & font,
        pi_.selected = pi_selected;
 
 #ifdef DEBUG_METRICS
+       Dimension const & dim = pi_.base.bv->coordCache().insets().dim(e.inset);
        int const x2 = x1 + dim.wid;
        int const y1 = yo_ + dim.des;
        int const y2 = yo_ - dim.asc;
@@ -163,8 +138,9 @@ void RowPainter::paintInset(Inset const * inset, Font const & font,
 }
 
 
-void RowPainter::paintForeignMark(double orig_x, Language const * lang, int desc) const
+void RowPainter::paintForeignMark(Row::Element const & e) const
 {
+       Language const * lang = e.font.language();
        if (!lyxrc.mark_foreign_language)
                return;
        if (lang == latex_language)
@@ -172,20 +148,23 @@ void RowPainter::paintForeignMark(double orig_x, Language const * lang, int desc
        if (lang == pi_.base.bv->buffer().params().language)
                return;
 
-       int const y = yo_ + solid_line_offset_ + desc + solid_line_thickness_ / 2;
-       pi_.pain.line(int(orig_x), y, int(x_), y, Color_language,
-               Painter::line_solid, solid_line_thickness_);
+       int const desc = e.inset ? e.dim.descent() : 0;
+       int const y = yo_ + pi_.base.solidLineOffset()
+               + desc + pi_.base.solidLineThickness() / 2;
+       pi_.pain.line(int(x_), y, int(x_ + e.full_width()), y, Color_language,
+                     Painter::line_solid, pi_.base.solidLineThickness());
 }
 
 
-void RowPainter::paintMisspelledMark(double const orig_x,
-                                     Row::Element const & e) const
+void RowPainter::paintMisspelledMark(Row::Element const & e) const
 {
        // if changed the misspelled marker gets placed slightly lower than normal
        // to avoid drawing at the same vertical offset
-       int const y = yo_ + solid_line_offset_ + solid_line_thickness_
-               + (e.change.changed() ? solid_line_thickness_ + 1 : 0)
-               + dotted_line_offset_;
+       FontMetrics const & fm = theFontMetrics(e.font);
+       int const thickness = max(fm.lineWidth(), 2);
+       int const y = yo_ + pi_.base.solidLineOffset() + pi_.base.solidLineThickness()
+               + (e.change.changed() ? pi_.base.solidLineThickness() + 1 : 0)
+               + 1 + thickness / 2;
 
        //FIXME: this could be computed only once, it is probably not costly.
        // check for cursor position
@@ -219,22 +198,22 @@ void RowPainter::paintMisspelledMark(double const orig_x,
 
                FontMetrics const & fm = theFontMetrics(e.font);
                int x1 = fm.pos2x(e.str, range.first - e.pos,
-                                 e.font.isVisibleRightToLeft(), e.extra);
+                                 e.isRTL(), e.extra);
                int x2 = fm.pos2x(e.str, min(range.last - e.pos + 1,
                                                                         pos_type(e.str.length())),
-                                                                        e.font.isVisibleRightToLeft(), e.extra);
+                                                                        e.isRTL(), e.extra);
                if (x1 > x2)
                        swap(x1, x2);
 
-               pi_.pain.line(int(orig_x) + x1, y, int(orig_x) + x2, y,
+               pi_.pain.line(int(x_ + x1), y, int(x_ + x2), y, 
                              Color_error,
-                             Painter::line_onoffdash, dotted_line_thickness_);
+                             Painter::line_onoffdash, thickness);
                pos = range.last + 1;
        }
 }
 
 
-void RowPainter::paintStringAndSel(Row::Element const & e)
+void RowPainter::paintStringAndSel(Row::Element const & e) const
 {
        // at least part of text selected?
        bool const some_sel = (e.endpos >= row_.sel_beg && e.pos < row_.sel_end)
@@ -243,36 +222,26 @@ void RowPainter::paintStringAndSel(Row::Element const & e)
        bool const all_sel = (e.pos >= row_.sel_beg && e.endpos < row_.sel_end)
                || pi_.selected;
 
-       if (all_sel) {
-               Font copy = e.font;
-               copy.fontInfo().setPaintColor(Color_selectiontext);
-               pi_.pain.text(int(x_), yo_, e.str, copy, e.extra);
-       } else if (e.change.changed()) {
+       if (all_sel || e.change.changed()) {
                Font copy = e.font;
-               copy.fontInfo().setPaintColor(e.change.color());
-               pi_.pain.text(int(x_), yo_, e.str, copy, e.extra);
+               Color const col = e.change.changed() ? e.change.color()
+                                                    : Color_selectiontext;
+               copy.fontInfo().setPaintColor(col);
+               pi_.pain.text(int(x_), yo_, e.str, copy, e.extra, e.full_width());
        } else if (!some_sel) {
-               pi_.pain.text(int(x_), yo_, e.str, e.font, e.extra);
+               pi_.pain.text(int(x_), yo_, e.str, e.font, e.extra, e.full_width());
        } else {
                pi_.pain.text(int(x_), yo_, e.str, e.font, Color_selectiontext,
-                                   max(row_.sel_beg, e.pos) - e.pos,
-                        min(row_.sel_end, e.endpos) - e.pos, e.extra);
+                             max(row_.sel_beg, e.pos) - e.pos,
+                             min(row_.sel_end, e.endpos) - e.pos,
+                             e.extra, e.full_width());
        }
-       x_ += e.full_width();
 }
 
 
-void RowPainter::paintChange(double orig_x, Font const & font,
-                             Change const & change) const
+void RowPainter::paintChange(Row::Element const & e) const
 {
-       if (!change.changed())
-               return;
-       // Calculate 1/3 height of font
-       FontMetrics const & fm = theFontMetrics(font);
-       int const y_bar = change.deleted() ? yo_ - fm.maxAscent() / 3
-               : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
-       pi_.pain.line(int(orig_x), y_bar, int(x_), y_bar,
-                     change.color(), Painter::line_solid, solid_line_thickness_);
+       e.change.paintCue(pi_, x_, yo_, x_ + e.full_width(), e.font.fontInfo());
 }
 
 
@@ -290,7 +259,7 @@ void RowPainter::paintChangeBar() const
        if (start == end || !par_.isChanged(start, end))
                return;
 
-       int const height = text_metrics_.isLastRow(pit_, row_)
+       int const height = tm_.isLastRow(row_)
                ? row_.ascent()
                : row_.height();
 
@@ -310,7 +279,7 @@ void RowPainter::paintAppendix() const
                y += 2 * defaultRowHeight();
 
        pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
-       pi_.pain.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color_appendix);
+       pi_.pain.line(tm_.width() - 2, y, tm_.width() - 2, yo_ + row_.height(), Color_appendix);
 }
 
 
@@ -322,16 +291,16 @@ void RowPainter::paintDepthBar() const
                return;
 
        depth_type prev_depth = 0;
-       if (!text_metrics_.isFirstRow(pit_, row_)) {
-               pit_type pit2 = pit_;
+       if (!tm_.isFirstRow(row_)) {
+               pit_type pit2 = row_.pit();
                if (row_.pos() == 0)
                        --pit2;
                prev_depth = pars_[pit2].getDepth();
        }
 
        depth_type next_depth = 0;
-       if (!text_metrics_.isLastRow(pit_, row_)) {
-               pit_type pit2 = pit_;
+       if (!tm_.isLastRow(row_)) {
+               pit_type pit2 = row_.pit();
                if (row_.endpos() >= pars_[pit2].size())
                        ++pit2;
                next_depth = pars_[pit2].getDepth();
@@ -357,7 +326,7 @@ void RowPainter::paintDepthBar() const
 }
 
 
-int RowPainter::paintAppendixStart(int y) const
+void RowPainter::paintAppendixStart(int y) const
 {
        FontInfo pb_font = sane_font;
        pb_font.setColor(Color_appendix);
@@ -370,88 +339,67 @@ int RowPainter::paintAppendixStart(int y) const
        docstring const label = _("Appendix");
        theFontMetrics(pb_font).rectText(label, w, a, d);
 
-       int const text_start = int(xo_ + (width_ - w) / 2);
+       int const text_start = int(xo_ + (tm_.width() - w) / 2);
        int const text_end = text_start + w;
 
        pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
 
        pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
-       pi_.pain.line(text_end, y, int(xo_ + width_ - 2), y, Color_appendix);
-
-       return 3 * defaultRowHeight();
+       pi_.pain.line(text_end, y, int(xo_ + tm_.width() - 2), y, Color_appendix);
 }
 
 
 void RowPainter::paintTooLargeMarks(bool const left, bool const right) const
 {
        if (left)
-               pi_.pain.line(dotted_line_thickness_, yo_ - row_.ascent(),
-                                         dotted_line_thickness_, yo_ + row_.descent(),
-                                         Color_scroll,
-                                         Painter::line_onoffdash, dotted_line_thickness_);
+               pi_.pain.line(pi_.base.dottedLineThickness(), yo_ - row_.ascent(),
+                                         pi_.base.dottedLineThickness(), yo_ + row_.descent(),
+                                         Color_scroll, Painter::line_onoffdash,
+                             pi_.base.dottedLineThickness());
        if (right) {
-               int const wwidth = pi_.base.bv->workWidth() - dotted_line_thickness_;
+               int const wwidth =
+                       pi_.base.bv->workWidth() - pi_.base.dottedLineThickness();
                pi_.pain.line(wwidth, yo_ - row_.ascent(),
                                          wwidth, yo_ + row_.descent(),
-                                         Color_scroll,
-                                         Painter::line_onoffdash, dotted_line_thickness_);
+                                         Color_scroll, Painter::line_onoffdash,
+                             pi_.base.dottedLineThickness());
        }
 }
 
 
 void RowPainter::paintFirst() const
 {
-       BufferParams const & bparams = pi_.base.bv->buffer().params();
        Layout const & layout = par_.layout();
 
-       int y_top = 0;
-
        // start of appendix?
        if (par_.params().startOfAppendix())
-               y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
-
-       if (bparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
-               && pit_ != 0) {
-               if (layout.latextype == LATEX_PARAGRAPH
-                   && !par_.getDepth()) {
-                       y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
-               } else {
-                       Layout const & playout = pars_[pit_ - 1].layout();
-                       if (playout.latextype == LATEX_PARAGRAPH
-                           && !pars_[pit_ - 1].getDepth()) {
-                               // is it right to use defskip here, too? (AS)
-                               y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
-                       }
-               }
-       }
+           paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
 
        bool const is_first =
-               text_.isFirstInSequence(pit_) || !layout.isParagraphGroup();
+               text_.isFirstInSequence(row_.pit()) || !layout.isParagraphGroup();
        //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << endl;
 
        if (layout.labelIsInline()
-                       && (layout.labeltype != LABEL_STATIC || is_first)) {
+           && (layout.labeltype != LABEL_STATIC || is_first))
                paintLabel();
-       } else if (is_first && layout.labelIsAbove()) {
+       else if (is_first && layout.labelIsAbove())
                paintTopLevelLabel();
-       }
 }
 
 
 void RowPainter::paintLabel() const
 {
-       docstring const str = par_.labelString();
+       docstring const str = par_.labelString();
        if (str.empty())
                return;
 
-       bool const is_rtl = text_.isRTL(par_);
        Layout const & layout = par_.layout();
        FontInfo const font = labelFont();
        FontMetrics const & fm = theFontMetrics(font);
        double x = x_;
 
-       if (is_rtl)
-               x = width_ - row_.right_margin + fm.width(layout.labelsep);
+       if (row_.isRTL())
+               x = tm_.width() - row_.right_margin + fm.width(layout.labelsep);
        else
                x = x_ - fm.width(layout.labelsep) - fm.width(str);
 
@@ -462,7 +410,6 @@ void RowPainter::paintLabel() const
 void RowPainter::paintTopLevelLabel() const
 {
        BufferParams const & bparams = pi_.base.bv->buffer().params();
-       bool const is_rtl = text_.isRTL(par_);
        ParagraphParameters const & pparams = par_.params();
        Layout const & layout = par_.layout();
        FontInfo const font = labelFont();
@@ -487,10 +434,10 @@ void RowPainter::paintTopLevelLabel() const
 
        double x = x_;
        if (layout.labeltype == LABEL_CENTERED) {
-               x = row_.left_margin + (width_ - row_.left_margin - row_.right_margin) / 2;
+               x = row_.left_margin + (tm_.width() - row_.left_margin - row_.right_margin) / 2;
                x -= fm.width(str) / 2;
-       } else if (is_rtl) {
-               x = width_ - row_.right_margin - fm.width(str);
+       } else if (row_.isRTL()) {
+               x = tm_.width() - row_.right_margin - fm.width(str);
        }
        pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
 }
@@ -528,10 +475,9 @@ static int getEndLabel(pit_type p, Text const & text)
 }
 
 
-void RowPainter::paintLast()
+void RowPainter::paintLast() const
 {
-       bool const is_rtl = text_.isRTL(par_);
-       int const endlabel = getEndLabel(pit_, text_);
+       int const endlabel = getEndLabel(row_.pit(), text_);
 
        // paint imaginary end-of-paragraph character
 
@@ -563,14 +509,17 @@ void RowPainter::paintLast()
                FontMetrics const & fm = theFontMetrics(font);
                int const size = int(0.75 * fm.maxAscent());
                int const y = yo_ - size;
-               int const max_row_width = width_ - size - Inset::TEXT_TO_INSET_OFFSET;
-               int x = is_rtl ? nestMargin() + changebarMargin()
-                       : max_row_width - row_.right_margin;
 
                // If needed, move the box a bit to avoid overlapping with text.
-               int const rem = max_row_width - row_.width();
-               if (rem <= 0)
-                       x += is_rtl ? rem : - rem;
+               int x = 0;
+               if (row_.isRTL()) {
+                       int const normal_x = nestMargin() + changebarMargin();
+                       x = min(normal_x, row_.left_margin - size - Inset::TEXT_TO_INSET_OFFSET);
+               } else {
+                       int const normal_x = tm_.width() - row_.right_margin
+                               - size - Inset::TEXT_TO_INSET_OFFSET;
+                       x = max(normal_x, row_.width());
+               }
 
                if (endlabel == END_LABEL_BOX)
                        pi_.pain.rectangle(x, y, size, size, Color_eolmarker);
@@ -583,7 +532,7 @@ void RowPainter::paintLast()
                FontInfo const font = labelFont();
                FontMetrics const & fm = theFontMetrics(font);
                docstring const & str = par_.layout().endlabelstring();
-               double const x = is_rtl ? x_ - fm.width(str) : x_;
+               double const x = row_.isRTL() ? x_ - fm.width(str) : x_;
                pi_.pain.text(int(x), yo_, str, font);
                break;
        }
@@ -601,18 +550,15 @@ void RowPainter::paintOnlyInsets()
        for ( ; cit != end ; ++cit) {
                Row::Element const & e = *cit;
                if (e.type == Row::INSET) {
-                       // If outer row has changed, nested insets are repainted completely.
-                       pi_.base.bv->coordCache().insets().add(e.inset, int(x_), yo_);
-                       bool const nested_inset =
-                               (e.inset->asInsetMath() && !e.inset->asInsetMath()->asMacroTemplate())
-                               || e.inset->asInsetText() || e.inset->asInsetTabular();
-                       if (!nested_inset) {
-                               x_ += e.full_width();
-                               continue;
-                       }
-                       paintInset(e.inset, e.font, e.change, e.pos);
-               } else
-                       x_ += e.full_width();
+                       paintInset(e);
+                       // The line that indicates word in a different language
+                       paintForeignMark(e);
+                       // change tracking (not for insets that handle it themselves)
+                       if (!e.inset->canPaintChange(*pi_.base.bv))
+                               paintChange(e);
+               }
+
+               x_ += e.full_width();
        }
 }
 
@@ -622,9 +568,7 @@ void RowPainter::paintText()
        Row::const_iterator cit = row_.begin();
        Row::const_iterator const & end = row_.end();
        for ( ; cit != end ; ++cit) {
-               double const orig_x = x_;
                Row::Element const & e = *cit;
-               int foreign_descent = 0;
 
                switch (e.type) {
                case Row::STRING:
@@ -632,27 +576,26 @@ void RowPainter::paintText()
                        paintStringAndSel(e);
 
                        // Paint the spelling marks if enabled.
-                       if (lyxrc.spellcheck_continuously && pi_.do_spellcheck)
-                               paintMisspelledMark(orig_x, e);
+                       if (lyxrc.spellcheck_continuously && pi_.do_spellcheck && pi_.pain.isDrawingEnabled())
+                               paintMisspelledMark(e);
                        break;
-               case Row::INSET: {
-                       // If outer row has changed, nested insets are repaint completely.
-                       pi_.base.bv->coordCache().insets().add(e.inset, int(x_), yo_);
-                       paintInset(e.inset, e.font, e.change, e.pos);
-                       foreign_descent = e.dim.descent();
-               }
+
+               case Row::INSET:
+                       paintInset(e);
                        break;
+
                case Row::SPACE:
                        pi_.pain.textDecoration(e.font.fontInfo(), int(x_), yo_, int(e.full_width()));
-                       x_ += e.full_width();
                }
 
                // The line that indicates word in a different language
-               paintForeignMark(orig_x, e.font.language(), foreign_descent);
+               paintForeignMark(e);
+
+               // change tracking (not for insets that handle it themselves)
+               if (e.type != Row::INSET || ! e.inset->canPaintChange(*pi_.base.bv))
+                       paintChange(e);
 
-               // change tracking (not for insets that track their own changes)
-               if (e.type != Row::INSET || ! e.inset->canTrackChanges())
-                       paintChange(orig_x, e.font, e.change);
+               x_ += e.full_width();
        }
 }
 
@@ -661,97 +604,54 @@ void RowPainter::paintSelection() const
 {
        if (!row_.selection())
                return;
-       Cursor const & curs = pi_.base.bv->cursor();
-       DocIterator beg = curs.selectionBegin();
-       beg.pit() = pit_;
-       beg.pos() = row_.sel_beg;
-
-       DocIterator end = curs.selectionEnd();
-       end.pit() = pit_;
-       end.pos() = row_.sel_end;
-
-       bool const begin_boundary = beg.pos() >= row_.endpos();
-       bool const end_boundary = row_.sel_end == row_.endpos();
-
-       DocIterator cur = beg;
-       cur.boundary(begin_boundary);
-       int x1 = text_metrics_.cursorX(beg.top(), begin_boundary);
-       int x2 = text_metrics_.cursorX(end.top(), end_boundary);
+
        int const y1 = yo_ - row_.ascent();
        int const y2 = y1 + row_.height();
 
-       int const rm = text_.isMainText() ? pi_.base.bv->rightMargin() : 0;
-       int const lm = text_.isMainText() ? pi_.base.bv->leftMargin() : 0;
-
        // draw the margins
-       if (row_.begin_margin_sel) {
-               if (text_.isRTL(beg.paragraph())) {
-                       pi_.pain.fillRectangle(int(xo_ + x1), y1,
-                               text_metrics_.width() - rm - x1, y2 - y1, Color_selection);
-               } else {
-                       pi_.pain.fillRectangle(int(xo_ + lm), y1, x1 - lm, y2 - y1,
-                               Color_selection);
-               }
-       }
-
-       if (row_.end_margin_sel) {
-               if (text_.isRTL(beg.paragraph())) {
-                       pi_.pain.fillRectangle(int(xo_ + lm), y1, x2 - lm, y2 - y1,
-                               Color_selection);
-               } else {
-                       pi_.pain.fillRectangle(int(xo_ + x2), y1, text_metrics_.width() - rm - x2,
-                               y2 - y1, Color_selection);
-               }
-       }
-
-       // if we are on a boundary from the beginning, it's probably
-       // a RTL boundary and we jump to the other side directly as this
-       // segement is 0-size and confuses the logic below
-       if (cur.boundary())
-               cur.boundary(false);
+       if (row_.isRTL() ? row_.end_margin_sel : row_.begin_margin_sel)
+               pi_.pain.fillRectangle(int(xo_), y1, row_.left_margin, y2 - y1,
+                                      Color_selection);
 
        // go through row and draw from RTL boundary to RTL boundary
-       while (cur < end) {
-               bool draw_now = false;
-
-               // simplified cursorForward code below which does not
-               // descend into insets and which does not go into the
-               // next line. Compare the logic with the original cursorForward
-
-               // if left of boundary -> just jump to right side, but
-               // for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
-               if (cur.boundary()) {
-                       cur.boundary(false);
-               }       else if (text_metrics_.isRTLBoundary(cur.pit(), cur.pos() + 1)) {
-                       // in front of RTL boundary -> Stay on this side of the boundary
-                       // because:  ab|cDDEEFFghi -> abc|DDEEFFghi
-                       ++cur.pos();
-                       cur.boundary(true);
-                       draw_now = true;
-               } else {
-                       // move right
-                       ++cur.pos();
-
-                       // line end?
-                       if (cur.pos() == row_.endpos())
-                               cur.boundary(true);
-               }
-
-               if (x1 == -1) {
-                       // the previous segment was just drawn, now the next starts
-                       x1 = text_metrics_.cursorX(cur.top(), cur.boundary());
+       double x = xo_ + row_.left_margin;
+       for (auto const & e : row_) {
+               // These are the same tests as in paintStringAndSel, except
+               // that all_sel has an additional clause that triggers for end
+               // of paragraph markers. The clause was not used in
+               // paintStringAndSel to avoid changing the drawing color.
+               // at least part of text selected?
+               bool const some_sel = (e.endpos >= row_.sel_beg && e.pos < row_.sel_end)
+                       || pi_.selected;
+               // all the text selected?
+               bool const all_sel = (e.pos >= row_.sel_beg && e.endpos < row_.sel_end)
+                   || (e.isVirtual() && e.pos == row_.endpos() && row_.end_margin_sel)
+                   || pi_.selected;
+
+               if (all_sel) {
+                       // the 3rd argument is written like that to avoid rounding issues
+                       pi_.pain.fillRectangle(int(x), y1,
+                                              int(x + e.full_width()) - int(x), y2 - y1,
+                                              Color_selection);
+               } else if (some_sel) {
+                       pos_type const from = min(max(row_.sel_beg, e.pos), e.endpos);
+                       pos_type const to = max(min(row_.sel_end, e.endpos), e.pos);
+                       double x1 = e.pos2x(from);
+                       double x2 = e.pos2x(to);
+                       if (x1 > x2)
+                               swap(x1, x2);
+                       // the 3rd argument is written like that to avoid rounding issues
+                       pi_.pain.fillRectangle(int(x + x1), y1, int(x2 + x) - int(x1 + x),
+                                              y2 - y1, Color_selection);
                }
+               x += e.full_width();
+       }
 
-               if (!(cur < end) || draw_now) {
-                       x2 = text_metrics_.cursorX(cur.top(), cur.boundary());
-                       pi_.pain.fillRectangle(int(xo_ + min(x1, x2)), y1, abs(x2 - x1),
-                               y2 - y1, Color_selection);
+       if (row_.isRTL() ? row_.begin_margin_sel : row_.end_margin_sel)
+               pi_.pain.fillRectangle(int(x), y1,
+                                      int(xo_ + tm_.width()) - int(x), y2 - y1,
+                                      Color_selection);
 
-                       // reset x1, so it is set again next round (which will be on the
-                       // right side of a boundary or at the selection end)
-                       x1 = -1;
-               }
-       }
 }