X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FRowPainter.cpp;h=cc3ea895d5fcb2ca3f932b6912622a3979e6a7cf;hb=c7d29be153debac82e3d2e8865fcc849f0a5f40d;hp=276664237f220572c99621abcd84d80148d4a226;hpb=5792606ff96cba6e7c8741e7bfc9024463cd21f8;p=lyx.git

diff --git a/src/RowPainter.cpp b/src/RowPainter.cpp
index 276664237f..cc3ea895d5 100644
--- a/src/RowPainter.cpp
+++ b/src/RowPainter.cpp
@@ -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 {
@@ -54,38 +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)
+	  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;
-	}
-
 	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()));
 }
 
 
@@ -93,7 +77,7 @@ FontInfo RowPainter::labelFont() const
 {
 	FontInfo f = text_.labelFont(par_);
 	// selected text?
-	if (row_.begin_margin_sel || pi_.selected)
+	if ((row_.selection() && row_.begin_margin_sel) || pi_.selected)
 		f.setPaintColor(Color_selectiontext);
 	return f;
 }
@@ -104,7 +88,7 @@ FontInfo RowPainter::labelFont() const
 // This draws green lines around each inset.
 
 
-void RowPainter::paintInset(Row::Element const & e)
+void RowPainter::paintInset(Row::Element const & e) const
 {
 	// Handle selection
 	bool const pi_selected = pi_.selected;
@@ -134,12 +118,7 @@ void RowPainter::paintInset(Row::Element const & e)
 	e.inset->drawBackground(pi_, x1, yo_);
 	e.inset->drawSelection(pi_, x1, yo_);
 	e.inset->draw(pi_, x1, yo_);
-
-	Dimension const & dim = pi_.base.bv->coordCache().insets().dim(e.inset);
-
-	paintForeignMark(x_, e.font.language(), dim.descent());
-
-	x_ += dim.width();
+	paintTextDecoration(e);
 
 	// Restore full_repaint status.
 	pi_.full_repaint = pi_full_repaint;
@@ -148,6 +127,7 @@ void RowPainter::paintInset(Row::Element const & e)
 	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;
@@ -159,8 +139,9 @@ void RowPainter::paintInset(Row::Element const & e)
 }
 
 
-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)
@@ -168,21 +149,22 @@ 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_ + min(3 * pi_.base.solidLineOffset() / 2 + desc,
+	                        row_.descent() - 1);
+	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
 	FontMetrics const & fm = theFontMetrics(e.font);
 	int const thickness = max(fm.lineWidth(), 2);
-	int const y = yo_ + solid_line_offset_ + solid_line_thickness_
-		+ (e.change.changed() ? solid_line_thickness_ + 1 : 0)
+	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.
@@ -224,7 +206,7 @@ void RowPainter::paintMisspelledMark(double const orig_x,
 		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, thickness);
 		pos = range.last + 1;
@@ -232,7 +214,7 @@ void RowPainter::paintMisspelledMark(double const orig_x,
 }
 
 
-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)
@@ -246,47 +228,42 @@ void RowPainter::paintStringAndSel(Row::Element const & e)
 		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);
+		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::paintTextDecoration(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_);
+	// element selected?
+	bool const sel = (e.pos >= row_.sel_beg && e.endpos <= row_.sel_end)
+		|| pi_.selected;
+	FontInfo copy = e.font.fontInfo();
+	if (sel || e.change.changed()) {
+		Color const col = e.change.changed() ? e.change.color()
+		                                     : Color_selectiontext;
+		copy.setPaintColor(col);
+	}
+	pi_.pain.textDecoration(copy, int(x_), yo_, int(e.full_width()));
 }
 
 
-void RowPainter::paintChangeBar() const
+void RowPainter::paintChange(Row::Element const & e) const
 {
-	pos_type const start = row_.pos();
-	pos_type end = row_.endpos();
-
-	if (par_.size() == end) {
-		// this is the last row of the paragraph;
-		// thus, we must also consider the imaginary end-of-par character
-		end++;
-	}
+	e.change.paintCue(pi_, x_, yo_, x_ + e.full_width(), e.font.fontInfo());
+}
 
-	if (start == end || !par_.isChanged(start, end))
-		return;
 
-	int const height = text_metrics_.isLastRow(pit_, row_)
+void RowPainter::paintChangeBar() const
+{
+	int const height = tm_.isLastRow(row_)
 		? row_.ascent()
 		: row_.height();
 
@@ -306,7 +283,7 @@ 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);
 }
 
 
@@ -318,16 +295,16 @@ 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();
@@ -336,9 +313,9 @@ void RowPainter::paintDepthBar() const
 	for (depth_type i = 1; i <= depth; ++i) {
 		int const w = nestMargin() / 5;
 		int x = int(xo_) + w * i;
-		// only consider the changebar space if we're drawing outermost text
+		// consider the bufferview left margin if we're drawing outermost text
 		if (text_.isMainText())
-			x += changebarMargin();
+			x += pi_.base.bv->leftMargin();
 
 		int const starty = yo_ - row_.ascent();
 		int const h =  row_.height() - 1 - (i - next_depth - 1) * 3;
@@ -366,29 +343,30 @@ void 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);
+	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());
 	}
 }
 
@@ -402,7 +380,7 @@ void RowPainter::paintFirst() const
 	    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()
@@ -415,18 +393,17 @@ void RowPainter::paintFirst() const
 
 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 = xo_ + row_.width() + fm.width(layout.labelsep);
 	else
 		x = x_ - fm.width(layout.labelsep) - fm.width(str);
 
@@ -437,7 +414,6 @@ 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();
@@ -462,10 +438,10 @@ 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 += (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 = xo_ + tm_.width() - row_.right_margin - fm.width(str);
 	}
 	pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
 }
@@ -503,10 +479,9 @@ 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
 
@@ -538,19 +513,22 @@ 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);
+			pi_.pain.rectangle(int(xo_) + x, y, size, size, Color_eolmarker);
 		else
-			pi_.pain.fillRectangle(x, y, size, size, Color_eolmarker);
+			pi_.pain.fillRectangle(int(xo_) + x, y, size, size, Color_eolmarker);
 		break;
 	}
 
@@ -558,7 +536,7 @@ 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;
 	}
@@ -576,18 +554,15 @@ 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);
-		} else
-			x_ += e.full_width();
+			// 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();
 	}
 }
 
@@ -597,9 +572,7 @@ 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:
@@ -607,27 +580,26 @@ void RowPainter::paintText()
 			paintStringAndSel(e);
 
 			// Paint the spelling marks if enabled.
-			if (lyxrc.spellcheck_continuously && pi_.do_spellcheck && pi_.pain.isDrawingEnabled())
-				paintMisspelledMark(orig_x, e);
+			if (lyxrc.spellcheck_continuously && pi_.do_spellcheck && !pi_.pain.isNull())
+				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_);
+
+		case Row::INSET:
 			paintInset(e);
-			foreign_descent = e.dim.descent();
-		}
 			break;
+
 		case Row::SPACE:
-			pi_.pain.textDecoration(e.font.fontInfo(), int(x_), yo_, int(e.full_width()));
-			x_ += e.full_width();
+			paintTextDecoration(e);
 		}
 
 		// 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 track their own changes)
-		if (e.type != Row::INSET || ! e.inset->canTrackChanges())
-			paintChange(orig_x, e.font, e.change);
+		// change tracking (not for insets that handle it themselves)
+		if (e.type != Row::INSET || ! e.inset->canPaintChange(*pi_.base.bv))
+			paintChange(e);
+
+		x_ += e.full_width();
 	}
 }
 
@@ -636,97 +608,54 @@ 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;
-		}
-	}
 }