3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
9 * Full author contact details are available in file CREDITS.
15 #include "rowpainter.h"
19 #include "CoordCache.h"
21 #include "BufferParams.h"
22 #include "BufferView.h"
29 #include "MetricsInfo.h"
30 #include "Paragraph.h"
31 #include "ParagraphMetrics.h"
32 #include "ParagraphParameters.h"
33 #include "TextMetrics.h"
36 #include "frontends/FontMetrics.h"
37 #include "frontends/Painter.h"
39 #include "insets/InsetText.h"
41 #include "mathed/InsetMath.h"
43 #include "support/debug.h"
44 #include "support/gettext.h"
45 #include "support/textutils.h"
47 #include "support/lassert.h"
48 #include <boost/crc.hpp>
54 using frontend::Painter;
55 using frontend::FontMetrics;
57 RowPainter::RowPainter(PainterInfo & pi,
58 Text const & text, pit_type pit, Row const & row, Bidi & bidi, int x, int y)
59 : pi_(pi), text_(text),
60 text_metrics_(pi_.base.bv->textMetrics(&text)),
61 pars_(text.paragraphs()),
62 row_(row), pit_(pit), par_(text.paragraphs()[pit]),
63 pm_(text_metrics_.parMetrics(pit)),
64 bidi_(bidi), change_(pi_.change_),
65 xo_(x), yo_(y), width_(text_metrics_.width()),
66 line_thickness_(1.0), line_offset_(2)
68 bidi_.computeTables(par_, pi_.base.bv->buffer(), row_);
70 if (lyxrc.zoom >= 100) {
71 // derive the line thickness from zoom factor
72 // the zoom is given in percent
73 // (increase thickness at 150%, 250% etc.)
74 line_thickness_ = (float)(int((lyxrc.zoom + 50) / 100.0));
75 // adjust line_offset_ too
76 line_offset_ = int(2 * line_thickness_) + 1;
81 //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
84 LASSERT(pit >= 0, /**/);
85 LASSERT(pit < int(text.paragraphs().size()), /**/);
89 FontInfo RowPainter::labelFont() const
91 FontInfo f = text_.labelFont(par_);
93 if (row_.begin_margin_sel || pi_.selected)
94 f.setPaintColor(Color_selectiontext);
99 int RowPainter::leftMargin() const
101 return text_metrics_.leftMargin(text_metrics_.width(), pit_,
105 // If you want to debug inset metrics uncomment the following line:
106 //#define DEBUG_METRICS
107 // This draws green lines around each inset.
110 void RowPainter::paintInset(Inset const * inset, pos_type const pos)
112 Font const font = text_metrics_.displayFont(pit_, pos);
114 LASSERT(inset, return);
115 // Backup full_repaint status because some insets (InsetTabular)
116 // requires a full repaint
117 bool pi_full_repaint = pi_.full_repaint;
119 // FIXME: We should always use font, see documentation of
120 // noFontChange() in Inset.h.
121 pi_.base.font = inset->noFontChange() ?
122 pi_.base.bv->buffer().params().getFont().fontInfo() :
124 pi_.ltr_pos = (bidi_.level(pos) % 2 == 0);
125 pi_.change_ = change_.changed() ? change_ : par_.lookupChange(pos);
127 int const x1 = int(x_);
128 pi_.base.bv->coordCache().insets().add(inset, x1, yo_);
129 // insets are painted completely. Recursive
130 // FIXME: it is wrong to completely paint the background
131 // if we want to do single row painting.
132 inset->drawBackground(pi_, x1, yo_);
133 inset->drawSelection(pi_, x1, yo_);
134 inset->draw(pi_, x1, yo_);
136 Dimension const & dim = pm_.insetDimension(inset);
138 paintForeignMark(x_, font.language(), dim.descent());
142 // Restore full_repaint status.
143 pi_.full_repaint = pi_full_repaint;
146 int const x2 = x1 + dim.wid;
147 int const y1 = yo_ + dim.des;
148 int const y2 = yo_ - dim.asc;
149 pi_.pain.line(x1, y1, x1, y2, Color_green);
150 pi_.pain.line(x1, y1, x2, y1, Color_green);
151 pi_.pain.line(x2, y1, x2, y2, Color_green);
152 pi_.pain.line(x1, y2, x2, y2, Color_green);
157 void RowPainter::paintHebrewComposeChar(pos_type & vpos, FontInfo const & font)
159 pos_type pos = bidi_.vis2log(vpos);
164 char_type c = par_.getChar(pos);
168 int const width = theFontMetrics(font).width(c);
171 for (pos_type i = pos - 1; i >= 0; --i) {
173 if (!Encodings::isHebrewComposeChar(c)) {
174 if (isPrintableNonspace(c)) {
175 int const width2 = pm_.singleWidth(i,
176 text_metrics_.displayFont(pit_, i));
177 dx = (c == 0x05e8 || // resh
178 c == 0x05d3) // dalet
180 : (width2 - width) / 2;
187 pi_.pain.text(int(x_) + dx, yo_, str, font);
191 void RowPainter::paintArabicComposeChar(pos_type & vpos, FontInfo const & font)
193 pos_type pos = bidi_.vis2log(vpos);
197 char_type c = par_.getChar(pos);
198 c = par_.transformChar(c, pos);
202 int const width = theFontMetrics(font).width(c);
205 for (pos_type i = pos - 1; i >= 0; --i) {
207 if (!Encodings::isArabicComposeChar(c)) {
208 if (isPrintableNonspace(c)) {
209 int const width2 = pm_.singleWidth(i,
210 text_metrics_.displayFont(pit_, i));
211 dx = (width2 - width) / 2;
217 pi_.pain.text(int(x_) + dx, yo_, str, font);
221 void RowPainter::paintChars(pos_type & vpos, FontInfo const & font,
222 bool hebrew, bool arabic)
224 // This method takes up 70% of time when typing
225 pos_type pos = bidi_.vis2log(vpos);
227 char_type prev_char = par_.getChar(pos);
228 vector<char_type> str;
230 str.push_back(prev_char);
233 char_type c = str[0];
238 str[0] = par_.transformChar(c, pos);
241 pos_type const end = row_.endpos();
242 FontSpan const font_span = par_.fontSpan(pos);
243 // Track-change status.
244 Change const & change_running = par_.lookupChange(pos);
247 bool const selection = (pos >= row_.sel_beg && pos < row_.sel_end)
251 bool const spell_state =
252 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
254 // collect as much similar chars as we can
255 for (++vpos ; vpos < end ; ++vpos) {
256 // Work-around bug #6920
257 // The bug can be reproduced with DejaVu font under Linux.
258 // The issue is that we compute the metrics character by character
259 // in ParagraphMetrics::singleWidth(); but we paint word by word
260 // for performance reason.
261 // Maybe a more general fix would be draw character by character
262 // for some predefined fonts on some platform. In arabic and
263 // Hebrew we already do paint this way.
264 if (prev_char == 'f')
267 pos = bidi_.vis2log(vpos);
268 if (pos < font_span.first || pos > font_span.last)
271 bool const new_selection = pos >= row_.sel_beg && pos < row_.sel_end;
272 if (new_selection != selection)
273 // Selection ends or starts here.
276 bool const new_spell_state =
277 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
278 if (new_spell_state != spell_state)
279 // Spell checker state changed here.
282 Change const & change = par_.lookupChange(pos);
283 if (!change_running.isSimilarTo(change))
284 // Track change type or author has changed.
287 char_type c = par_.getChar(pos);
292 if (!isPrintableNonspace(c))
295 /* Because we do our own bidi, at this point the strings are
296 * already in visual order. However, Qt also applies its own
297 * bidi algorithm to strings that it paints to the screen.
298 * Therefore, if we were to paint Hebrew/Arabic words as a
299 * single string, the letters in the words would get reversed
300 * again. In order to avoid that, we don't collect Hebrew/
301 * Arabic characters, but rather paint them one at a time.
302 * See also http://thread.gmane.org/gmane.editors.lyx.devel/79740
307 /* FIXME: these checks are irrelevant, since 'arabic' and
308 * 'hebrew' alone are already going to trigger a break.
309 * However, this should not be removed completely, because
310 * if an alternative solution is found which allows grouping
311 * of arabic and hebrew characters, then these breaks may have
314 if (arabic && Encodings::isArabicComposeChar(c))
317 if (hebrew && Encodings::isHebrewComposeChar(c))
326 c = par_.transformChar(c, pos);
327 /* see comment in hebrew, explaining why we break */
335 docstring s(&str[0], str.size());
338 s.replace(0,1,from_ascii(" "));
340 if (!selection && !change_running.changed()) {
341 x_ += pi_.pain.text(int(x_), yo_, s, font);
345 FontInfo copy = font;
346 if (change_running.changed())
347 copy.setPaintColor(change_running.color());
349 copy.setPaintColor(Color_selectiontext);
351 x_ += pi_.pain.text(int(x_), yo_, s, copy);
355 void RowPainter::paintForeignMark(double orig_x, Language const * lang,
358 if (!lyxrc.mark_foreign_language)
360 if (lang == latex_language)
362 if (lang == pi_.base.bv->buffer().params().language)
365 int const y = yo_ + 1 + desc + int(line_thickness_/2);
366 pi_.pain.line(int(orig_x), y, int(x_), y, Color_language,
367 Painter::line_solid, line_thickness_);
371 void RowPainter::paintMisspelledMark(double orig_x, bool changed)
373 // if changed the misspelled marker gets placed slightly lower than normal
374 // to avoid drawing at the same vertical offset
375 int const y = yo_ + (changed ? int(line_thickness_ + 1.0) : 0) + line_offset_;
376 pi_.pain.line(int(orig_x), y, int(x_), y, Color_error,
377 Painter::line_onoffdash, line_thickness_);
381 void RowPainter::paintFromPos(pos_type & vpos, bool changed)
383 pos_type const pos = bidi_.vis2log(vpos);
384 Font const orig_font = text_metrics_.displayFont(pit_, pos);
385 double const orig_x = x_;
387 // usual characters, no insets
388 char_type const c = par_.getChar(pos);
390 // special case languages
391 string const & lang = orig_font.language()->lang();
392 bool const hebrew = lang == "hebrew";
393 bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi" ||
397 bool const misspelled =
398 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
400 // draw as many chars as we can
401 if ((!hebrew && !arabic)
402 || (hebrew && !Encodings::isHebrewComposeChar(c))
403 || (arabic && !Encodings::isArabicComposeChar(c))) {
404 paintChars(vpos, orig_font.fontInfo(), hebrew, arabic);
406 paintHebrewComposeChar(vpos, orig_font.fontInfo());
408 paintArabicComposeChar(vpos, orig_font.fontInfo());
411 paintForeignMark(orig_x, orig_font.language());
413 if (lyxrc.spellcheck_continuously && misspelled) {
414 // check for cursor position
415 // don't draw misspelled marker for words at cursor position
416 // we don't want to disturb the process of text editing
417 BufferView const * bv = pi_.base.bv;
418 Cursor const & cur = bv->cursor();
419 bool current_word = false;
420 if (par_.id() == cur.paragraph().id()) {
421 pos_type cpos = cur.pos();
422 if (cpos > 0 && cpos == par_.size() && !par_.isWordSeparator(cpos-1))
424 current_word = par_.isSameSpellRange(pos, cpos) ;
427 paintMisspelledMark(orig_x, changed);
432 void RowPainter::paintChangeBar()
434 pos_type const start = row_.pos();
435 pos_type end = row_.endpos();
437 if (par_.size() == end) {
438 // this is the last row of the paragraph;
439 // thus, we must also consider the imaginary end-of-par character
443 if (start == end || !par_.isChanged(start, end))
446 int const height = text_metrics_.isLastRow(pit_, row_)
450 pi_.pain.fillRectangle(5, yo_ - row_.ascent(), 3, height, Color_changebar);
454 void RowPainter::paintAppendix()
456 // only draw the appendix frame once (for the main text)
457 if (!par_.params().appendix() || !text_.isMainText())
460 int y = yo_ - row_.ascent();
462 if (par_.params().startOfAppendix())
463 y += 2 * defaultRowHeight();
465 pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
466 pi_.pain.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color_appendix);
470 void RowPainter::paintDepthBar()
472 depth_type const depth = par_.getDepth();
477 depth_type prev_depth = 0;
478 if (!text_metrics_.isFirstRow(pit_, row_)) {
479 pit_type pit2 = pit_;
482 prev_depth = pars_[pit2].getDepth();
485 depth_type next_depth = 0;
486 if (!text_metrics_.isLastRow(pit_, row_)) {
487 pit_type pit2 = pit_;
488 if (row_.endpos() >= pars_[pit2].size())
490 next_depth = pars_[pit2].getDepth();
493 for (depth_type i = 1; i <= depth; ++i) {
494 int const w = nestMargin() / 5;
495 int x = int(xo_) + w * i;
496 // only consider the changebar space if we're drawing outermost text
497 if (text_.isMainText())
498 x += changebarMargin();
500 int const starty = yo_ - row_.ascent();
501 int const h = row_.height() - 1 - (i - next_depth - 1) * 3;
503 pi_.pain.line(x, starty, x, starty + h, Color_depthbar);
506 pi_.pain.fillRectangle(x, starty, w, 2, Color_depthbar);
508 pi_.pain.fillRectangle(x, starty + h, w, 2, Color_depthbar);
513 int RowPainter::paintAppendixStart(int y)
515 FontInfo pb_font = sane_font;
516 pb_font.setColor(Color_appendix);
523 docstring const label = _("Appendix");
524 theFontMetrics(pb_font).rectText(label, w, a, d);
526 int const text_start = int(xo_ + (width_ - w) / 2);
527 int const text_end = text_start + w;
529 pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
531 pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
532 pi_.pain.line(text_end, y, int(xo_ + width_ - 2), y, Color_appendix);
534 return 3 * defaultRowHeight();
538 void RowPainter::paintFirst()
540 ParagraphParameters const & pparams = par_.params();
541 Buffer const & buffer = pi_.base.bv->buffer();
542 BufferParams const & bparams = buffer.params();
543 Layout const & layout = par_.layout();
547 // start of appendix?
548 if (pparams.startOfAppendix())
549 y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
551 if (bparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
553 if (layout.latextype == LATEX_PARAGRAPH
554 && !par_.getDepth()) {
555 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
557 Layout const & playout = pars_[pit_ - 1].layout();
558 if (playout.latextype == LATEX_PARAGRAPH
559 && !pars_[pit_ - 1].getDepth()) {
560 // is it right to use defskip here, too? (AS)
561 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
566 bool const is_rtl = text_.isRTL(par_);
567 bool const is_seq = text_.isFirstInSequence(pit_);
568 //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << endl;
570 // should we print a label?
571 if (layout.labeltype >= LABEL_STATIC
572 && (layout.labeltype != LABEL_STATIC
573 || layout.latextype != LATEX_ENVIRONMENT
576 FontInfo const font = labelFont();
577 FontMetrics const & fm = theFontMetrics(font);
579 docstring const str = par_.labelString();
583 // this is special code for the chapter layout. This is
584 // printed in an extra row and has a pagebreak at
586 if (layout.counter == "chapter") {
587 double spacing_val = 1.0;
588 if (!pparams.spacing().isDefault()) {
589 spacing_val = pparams.spacing().getValue();
591 spacing_val = bparams.spacing().getValue();
594 int const labeladdon = int(fm.maxHeight() * layout.spacing.getValue() * spacing_val);
596 int const maxdesc = int(fm.maxDescent() * layout.spacing.getValue() * spacing_val)
597 + int(layout.parsep) * defaultRowHeight();
600 x = width_ - leftMargin() -
604 pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
607 x = width_ - leftMargin()
608 + fm.width(layout.labelsep);
610 x = x_ - fm.width(layout.labelsep)
614 pi_.pain.text(int(x), yo_, str, font);
618 // the labels at the top of an environment.
619 // More or less for bibliography
621 (layout.labeltype == LABEL_TOP_ENVIRONMENT ||
622 layout.labeltype == LABEL_BIBLIO ||
623 layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
624 FontInfo const font = labelFont();
625 docstring const str = par_.labelString();
627 double spacing_val = 1.0;
628 if (!pparams.spacing().isDefault())
629 spacing_val = pparams.spacing().getValue();
631 spacing_val = bparams.spacing().getValue();
633 FontMetrics const & fm = theFontMetrics(font);
635 int const labeladdon = int(fm.maxHeight()
636 * layout.spacing.getValue() * spacing_val);
639 int(fm.maxDescent() * layout.spacing.getValue() * spacing_val
640 + (layout.labelbottomsep * defaultRowHeight()));
643 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
646 x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
647 x -= fm.width(str) / 2;
649 x = width_ - leftMargin() - fm.width(str);
651 pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
657 /** Check if the current paragraph is the last paragraph in a
659 static int getEndLabel(pit_type p, Text const & text)
661 ParagraphList const & pars = text.paragraphs();
663 depth_type par_depth = pars[p].getDepth();
664 while (pit != pit_type(pars.size())) {
665 Layout const & layout = pars[pit].layout();
666 int const endlabeltype = layout.endlabeltype;
668 if (endlabeltype != END_LABEL_NO_LABEL) {
669 if (p + 1 == pit_type(pars.size()))
672 depth_type const next_depth =
673 pars[p + 1].getDepth();
674 if (par_depth > next_depth ||
675 (par_depth == next_depth && layout != pars[p + 1].layout()))
681 pit = text.outerHook(pit);
682 if (pit != pit_type(pars.size()))
683 par_depth = pars[pit].getDepth();
685 return END_LABEL_NO_LABEL;
689 void RowPainter::paintLast()
691 bool const is_rtl = text_.isRTL(par_);
692 int const endlabel = getEndLabel(pit_, text_);
694 // paint imaginary end-of-paragraph character
696 Change const & change = par_.lookupChange(par_.size());
697 if (change.changed()) {
698 FontMetrics const & fm =
699 theFontMetrics(pi_.base.bv->buffer().params().getFont());
700 int const length = fm.maxAscent() / 2;
701 Color col = change.color();
703 pi_.pain.line(int(x_) + 1, yo_ + 2, int(x_) + 1, yo_ + 2 - length, col,
704 Painter::line_solid, 3);
706 if (change.deleted()) {
707 pi_.pain.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1 + length,
708 yo_ + 2, col, Painter::line_solid, 3);
710 pi_.pain.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1,
711 yo_ + 2, col, Painter::line_solid, 3);
719 case END_LABEL_FILLED_BOX: {
720 FontInfo const font = labelFont();
721 FontMetrics const & fm = theFontMetrics(font);
722 int const size = int(0.75 * fm.maxAscent());
723 int const y = yo_ - size;
724 int const max_row_width = width_ - size - Inset::TEXT_TO_INSET_OFFSET;
725 int x = is_rtl ? nestMargin() + changebarMargin()
726 : max_row_width - text_metrics_.rightMargin(pm_);
728 // If needed, move the box a bit to avoid overlapping with text.
729 int const rem = max_row_width - row_.width();
731 x += is_rtl ? rem : - rem;
733 if (endlabel == END_LABEL_BOX)
734 pi_.pain.rectangle(x, y, size, size, Color_eolmarker);
736 pi_.pain.fillRectangle(x, y, size, size, Color_eolmarker);
740 case END_LABEL_STATIC: {
741 FontInfo const font = labelFont();
742 FontMetrics const & fm = theFontMetrics(font);
743 docstring const & str = par_.layout().endlabelstring();
744 double const x = is_rtl ? x_ - fm.width(str) : x_;
745 pi_.pain.text(int(x), yo_, str, font);
749 case END_LABEL_NO_LABEL:
750 if (lyxrc.paragraph_markers && size_type(pit_ + 1) < pars_.size()) {
751 docstring const s = docstring(1, char_type(0x00B6));
752 FontInfo f = FontInfo();
753 FontMetrics const & fm = theFontMetrics(f);
754 f.setColor(Color_paragraphmarker);
755 pi_.pain.text(int(x_), yo_, s, f);
763 void RowPainter::paintOnlyInsets()
765 CoordCache const & cache = pi_.base.bv->coordCache();
766 pos_type const end = row_.endpos();
767 for (pos_type pos = row_.pos(); pos != end; ++pos) {
768 // If outer row has changed, nested insets are repaint completely.
769 Inset const * inset = par_.getInset(pos);
770 bool const nested_inset = inset &&
771 ((inset->asInsetMath() &&
772 !inset->asInsetMath()->asMacroTemplate())
773 || inset->asInsetText()
774 || inset->asInsetTabular());
777 if (x_ > pi_.base.bv->workWidth()
778 || !cache.getInsets().has(inset))
780 x_ = cache.getInsets().x(inset);
782 bool const pi_selected = pi_.selected;
783 Cursor const & cur = pi_.base.bv->cursor();
784 if (cur.selection() && cur.text() == &text_
785 && cur.normalAnchor().text() == &text_)
786 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
787 paintInset(inset, pos);
788 pi_.selected = pi_selected;
793 void RowPainter::paintText()
795 pos_type const end = row_.endpos();
796 // Spaces at logical line breaks in bidi text must be skipped during
797 // painting. However, they may appear visually in the middle
798 // of a row; they must be skipped, wherever they are...
799 // * logically "abc_[HEBREW_\nHEBREW]"
800 // * visually "abc_[_WERBEH\nWERBEH]"
801 pos_type skipped_sep_vpos = -1;
802 pos_type body_pos = par_.beginOfBody();
804 (body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
808 Layout const & layout = par_.layout();
810 Change change_running;
811 int change_last_x = 0;
813 // check for possible inline completion
814 DocIterator const & inlineCompletionPos = pi_.base.bv->inlineCompletionPos();
815 pos_type inlineCompletionVPos = -1;
816 if (inlineCompletionPos.inTexted()
817 && inlineCompletionPos.text() == &text_
818 && inlineCompletionPos.pit() == pit_
819 && inlineCompletionPos.pos() - 1 >= row_.pos()
820 && inlineCompletionPos.pos() - 1 < row_.endpos()) {
821 // draw logically behind the previous character
822 inlineCompletionVPos = bidi_.log2vis(inlineCompletionPos.pos() - 1);
825 // Use font span to speed things up, see below
829 // If the last logical character is a separator, don't paint it, unless
830 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
831 if (end > 0 && end < par_.size() && par_.isSeparator(end - 1))
832 skipped_sep_vpos = bidi_.log2vis(end - 1);
834 for (pos_type vpos = row_.pos(); vpos < end; ) {
835 if (x_ > pi_.base.bv->workWidth())
838 // Skip the separator at the logical end of the row
839 if (vpos == skipped_sep_vpos) {
844 pos_type const pos = bidi_.vis2log(vpos);
846 if (pos >= par_.size()) {
851 // Use font span to speed things up, see above
852 if (vpos < font_span.first || vpos > font_span.last) {
853 font_span = par_.fontSpan(vpos);
854 font = text_metrics_.displayFont(pit_, vpos);
856 // split font span if inline completion is inside
857 if (font_span.first <= inlineCompletionVPos
858 && font_span.last > inlineCompletionVPos)
859 font_span.last = inlineCompletionVPos;
862 const int width_pos = pm_.singleWidth(pos, font);
864 if (x_ + width_pos < 0) {
869 Change const & change = par_.lookupChange(pos);
870 if (change.changed() && !change_running.changed()) {
871 change_running = change;
872 change_last_x = int(x_);
875 Inset const * inset = par_.getInset(pos);
876 bool const highly_editable_inset = inset
877 && inset->editable();
879 // If we reach the end of a change or if the author changes, paint it.
880 // We also don't paint across things like tables
881 if (change_running.changed() && (highly_editable_inset
882 || !change.changed() || !change_running.isSimilarTo(change))) {
883 // Calculate 1/3 height of the buffer's default font
884 FontMetrics const & fm
885 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
886 int const y_bar = change_running.deleted() ?
887 yo_ - fm.maxAscent() / 3 : yo_ + line_offset_;
888 pi_.pain.line(change_last_x, y_bar, int(x_), y_bar,
889 change_running.color(), Painter::line_solid, line_thickness_);
891 // Change might continue with a different author or type
892 if (change.changed() && !highly_editable_inset) {
893 change_running = change;
894 change_last_x = int(x_);
896 change_running.setUnchanged();
899 if (body_pos > 0 && pos == body_pos - 1) {
900 int const lwidth = theFontMetrics(labelFont())
901 .width(layout.labelsep);
903 x_ += row_.label_hfill + lwidth - width_pos;
906 // Is the inline completion in front of character?
907 if (font.isRightToLeft() && vpos == inlineCompletionVPos)
908 paintInlineCompletion(font);
910 if (par_.isSeparator(pos)) {
911 Font const orig_font = text_metrics_.displayFont(pit_, pos);
912 double const orig_x = x_;
915 x_ += row_.separator;
916 paintForeignMark(orig_x, orig_font.language());
920 // If outer row has changed, nested insets are repaint completely.
921 pi_.base.bv->coordCache().insets().add(inset, int(x_), yo_);
923 bool const pi_selected = pi_.selected;
924 Cursor const & cur = pi_.base.bv->cursor();
925 if (cur.selection() && cur.text() == &text_
926 && cur.normalAnchor().text() == &text_)
927 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
928 paintInset(inset, pos);
929 pi_.selected = pi_selected;
933 // paint as many characters as possible.
934 paintFromPos(vpos, change_running.changed());
937 // Is the inline completion after character?
938 if (!font.isRightToLeft() && vpos - 1 == inlineCompletionVPos)
939 paintInlineCompletion(font);
942 // if we reach the end of a struck out range, paint it
943 if (change_running.changed()) {
944 FontMetrics const & fm
945 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
946 int const y_bar = change_running.deleted() ?
947 yo_ - fm.maxAscent() / 3 : yo_ + line_offset_;
948 pi_.pain.line(change_last_x, y_bar, int(x_), y_bar,
949 change_running.color(), Painter::line_solid, line_thickness_);
950 change_running.setUnchanged();
955 void RowPainter::paintSelection()
957 if (!row_.selection())
959 Cursor const & curs = pi_.base.bv->cursor();
960 DocIterator beg = curs.selectionBegin();
962 beg.pos() = row_.sel_beg;
964 DocIterator end = curs.selectionEnd();
966 end.pos() = row_.sel_end;
968 bool const begin_boundary = beg.pos() >= row_.endpos();
969 bool const end_boundary = row_.sel_end == row_.endpos();
971 DocIterator cur = beg;
972 cur.boundary(begin_boundary);
973 int x1 = text_metrics_.cursorX(beg.top(), begin_boundary);
974 int x2 = text_metrics_.cursorX(end.top(), end_boundary);
975 int const y1 = yo_ - row_.ascent();
976 int const y2 = y1 + row_.height();
978 int const rm = text_.isMainText() ? pi_.base.bv->rightMargin() : 0;
979 int const lm = text_.isMainText() ? pi_.base.bv->leftMargin() : 0;
982 if (row_.begin_margin_sel) {
983 if (text_.isRTL(beg.paragraph())) {
984 pi_.pain.fillRectangle(int(xo_ + x1), y1,
985 text_metrics_.width() - rm - x1, y2 - y1, Color_selection);
987 pi_.pain.fillRectangle(int(xo_ + lm), y1, x1 - lm, y2 - y1,
992 if (row_.end_margin_sel) {
993 if (text_.isRTL(beg.paragraph())) {
994 pi_.pain.fillRectangle(int(xo_ + lm), y1, x2 - lm, y2 - y1,
997 pi_.pain.fillRectangle(int(xo_ + x2), y1, text_metrics_.width() - rm - x2,
998 y2 - y1, Color_selection);
1002 // if we are on a boundary from the beginning, it's probably
1003 // a RTL boundary and we jump to the other side directly as this
1004 // segement is 0-size and confuses the logic below
1006 cur.boundary(false);
1008 // go through row and draw from RTL boundary to RTL boundary
1010 bool draw_now = false;
1012 // simplified cursorForward code below which does not
1013 // descend into insets and which does not go into the
1014 // next line. Compare the logic with the original cursorForward
1016 // if left of boundary -> just jump to right side, but
1017 // for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
1018 if (cur.boundary()) {
1019 cur.boundary(false);
1020 } else if (text_metrics_.isRTLBoundary(cur.pit(), cur.pos() + 1)) {
1021 // in front of RTL boundary -> Stay on this side of the boundary
1022 // because: ab|cDDEEFFghi -> abc|DDEEFFghi
1031 if (cur.pos() == row_.endpos())
1036 // the previous segment was just drawn, now the next starts
1037 x1 = text_metrics_.cursorX(cur.top(), cur.boundary());
1040 if (!(cur < end) || draw_now) {
1041 x2 = text_metrics_.cursorX(cur.top(), cur.boundary());
1042 pi_.pain.fillRectangle(int(xo_ + min(x1, x2)), y1, abs(x2 - x1),
1043 y2 - y1, Color_selection);
1045 // reset x1, so it is set again next round (which will be on the
1046 // right side of a boundary or at the selection end)
1053 void RowPainter::paintInlineCompletion(Font const & font)
1055 docstring completion = pi_.base.bv->inlineCompletion();
1056 FontInfo f = font.fontInfo();
1057 bool rtl = font.isRightToLeft();
1059 // draw the unique and the non-unique completion part
1060 // Note: this is not time-critical as it is
1061 // only done once per screen.
1062 size_t uniqueTo = pi_.base.bv->inlineCompletionUniqueChars();
1063 docstring s1 = completion.substr(0, uniqueTo);
1064 docstring s2 = completion.substr(uniqueTo);
1065 ColorCode c1 = Color_inlinecompletion;
1066 ColorCode c2 = Color_nonunique_inlinecompletion;
1074 if (s1.size() > 0) {
1076 pi_.pain.text(int(x_), yo_, s1, f);
1077 x_ += theFontMetrics(font).width(s1);
1080 if (s2.size() > 0) {
1082 pi_.pain.text(int(x_), yo_, s2, f);
1083 x_ += theFontMetrics(font).width(s2);