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 solid_line_thickness_(1.0), solid_line_offset_(1),
67 dotted_line_thickness_(1.0), dotted_line_offset_(2)
69 bidi_.computeTables(par_, pi_.base.bv->buffer(), row_);
71 if (lyxrc.zoom >= 200) {
72 // derive the line thickness from zoom factor
73 // the zoom is given in percent
74 // (increase thickness at 250%, 450% etc.)
75 solid_line_thickness_ = (float)(int((lyxrc.zoom + 50) / 200.0));
76 // adjust line_offset_ too
77 solid_line_offset_ = 1 + int(0.5 * solid_line_thickness_);
79 if (lyxrc.zoom >= 100) {
80 // derive the line thickness from zoom factor
81 // the zoom is given in percent
82 // (increase thickness at 150%, 250% etc.)
83 dotted_line_thickness_ = (float)(int((lyxrc.zoom + 50) / 100.0));
84 // adjust line_offset_ too
85 dotted_line_offset_ = int(0.5 * dotted_line_thickness_) + 1;
90 //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
93 LASSERT(pit >= 0, /**/);
94 LASSERT(pit < int(text.paragraphs().size()), /**/);
98 FontInfo RowPainter::labelFont() const
100 FontInfo f = text_.labelFont(par_);
102 if (row_.begin_margin_sel || pi_.selected)
103 f.setPaintColor(Color_selectiontext);
108 int RowPainter::leftMargin() const
110 return text_metrics_.leftMargin(text_metrics_.width(), pit_,
114 // If you want to debug inset metrics uncomment the following line:
115 //#define DEBUG_METRICS
116 // This draws green lines around each inset.
119 void RowPainter::paintInset(Inset const * inset, pos_type const pos)
121 Font const font = text_metrics_.displayFont(pit_, pos);
123 LASSERT(inset, return);
124 // Backup full_repaint status because some insets (InsetTabular)
125 // requires a full repaint
126 bool pi_full_repaint = pi_.full_repaint;
128 pi_.base.font = inset->inheritFont() ? font.fontInfo() :
129 pi_.base.bv->buffer().params().getFont().fontInfo();
130 pi_.ltr_pos = (bidi_.level(pos) % 2 == 0);
131 pi_.change_ = change_.changed() ? change_ : par_.lookupChange(pos);
133 int const x1 = int(x_);
134 pi_.base.bv->coordCache().insets().add(inset, x1, yo_);
135 // insets are painted completely. Recursive
136 // FIXME: it is wrong to completely paint the background
137 // if we want to do single row painting.
138 inset->drawBackground(pi_, x1, yo_);
139 inset->drawSelection(pi_, x1, yo_);
140 inset->draw(pi_, x1, yo_);
142 Dimension const & dim = pm_.insetDimension(inset);
144 paintForeignMark(x_, font.language(), dim.descent());
148 // Restore full_repaint status.
149 pi_.full_repaint = pi_full_repaint;
152 int const x2 = x1 + dim.wid;
153 int const y1 = yo_ + dim.des;
154 int const y2 = yo_ - dim.asc;
155 pi_.pain.line(x1, y1, x1, y2, Color_green);
156 pi_.pain.line(x1, y1, x2, y1, Color_green);
157 pi_.pain.line(x2, y1, x2, y2, Color_green);
158 pi_.pain.line(x1, y2, x2, y2, Color_green);
163 void RowPainter::paintHebrewComposeChar(pos_type & vpos, FontInfo const & font)
165 pos_type pos = bidi_.vis2log(vpos);
170 char_type c = par_.getChar(pos);
174 int const width = theFontMetrics(font).width(c);
177 for (pos_type i = pos - 1; i >= 0; --i) {
179 if (!Encodings::isHebrewComposeChar(c)) {
180 if (isPrintableNonspace(c)) {
181 int const width2 = pm_.singleWidth(i,
182 text_metrics_.displayFont(pit_, i));
183 dx = (c == 0x05e8 || // resh
184 c == 0x05d3) // dalet
186 : (width2 - width) / 2;
193 pi_.pain.text(int(x_) + dx, yo_, str, font);
197 void RowPainter::paintArabicComposeChar(pos_type & vpos, FontInfo const & font)
199 pos_type pos = bidi_.vis2log(vpos);
203 char_type c = par_.getChar(pos);
204 c = par_.transformChar(c, pos);
208 int const width = theFontMetrics(font).width(c);
211 for (pos_type i = pos - 1; i >= 0; --i) {
213 if (!Encodings::isArabicComposeChar(c)) {
214 if (isPrintableNonspace(c)) {
215 int const width2 = pm_.singleWidth(i,
216 text_metrics_.displayFont(pit_, i));
217 dx = (width2 - width) / 2;
223 pi_.pain.text(int(x_) + dx, yo_, str, font);
227 void RowPainter::paintChars(pos_type & vpos, FontInfo const & font,
228 bool hebrew, bool arabic)
230 // This method takes up 70% of time when typing
231 pos_type pos = bidi_.vis2log(vpos);
233 char_type prev_char = par_.getChar(pos);
234 vector<char_type> str;
236 str.push_back(prev_char);
239 char_type c = str[0];
244 str[0] = par_.transformChar(c, pos);
247 pos_type const end = row_.endpos();
248 FontSpan const font_span = par_.fontSpan(pos);
249 // Track-change status.
250 Change const & change_running = par_.lookupChange(pos);
253 bool const selection = (pos >= row_.sel_beg && pos < row_.sel_end)
257 bool const spell_state =
258 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
260 // collect as much similar chars as we can
261 for (++vpos ; vpos < end ; ++vpos) {
262 // Work-around bug #6920
263 // The bug can be reproduced with DejaVu font under Linux.
264 // The issue is that we compute the metrics character by character
265 // in ParagraphMetrics::singleWidth(); but we paint word by word
266 // for performance reason.
267 // Maybe a more general fix would be draw character by character
268 // for some predefined fonts on some platform. In arabic and
269 // Hebrew we already do paint this way.
270 if (prev_char == 'f' || lyxrc.force_paint_single_char)
273 pos = bidi_.vis2log(vpos);
274 if (pos < font_span.first || pos > font_span.last)
277 bool const new_selection = pos >= row_.sel_beg && pos < row_.sel_end;
278 if (new_selection != selection)
279 // Selection ends or starts here.
282 bool const new_spell_state =
283 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
284 if (new_spell_state != spell_state)
285 // Spell checker state changed here.
288 Change const & change = par_.lookupChange(pos);
289 if (!change_running.isSimilarTo(change))
290 // Track change type or author has changed.
293 char_type c = par_.getChar(pos);
298 if (!isPrintableNonspace(c))
301 /* Because we do our own bidi, at this point the strings are
302 * already in visual order. However, Qt also applies its own
303 * bidi algorithm to strings that it paints to the screen.
304 * Therefore, if we were to paint Hebrew/Arabic words as a
305 * single string, the letters in the words would get reversed
306 * again. In order to avoid that, we don't collect Hebrew/
307 * Arabic characters, but rather paint them one at a time.
308 * See also http://thread.gmane.org/gmane.editors.lyx.devel/79740
313 /* FIXME: these checks are irrelevant, since 'arabic' and
314 * 'hebrew' alone are already going to trigger a break.
315 * However, this should not be removed completely, because
316 * if an alternative solution is found which allows grouping
317 * of arabic and hebrew characters, then these breaks may have
320 if (arabic && Encodings::isArabicComposeChar(c))
323 if (hebrew && Encodings::isHebrewComposeChar(c))
332 c = par_.transformChar(c, pos);
333 /* see comment in hebrew, explaining why we break */
341 docstring s(&str[0], str.size());
344 s.replace(0,1,from_ascii(" "));
346 if (!selection && !change_running.changed()) {
347 x_ += pi_.pain.text(int(x_), yo_, s, font);
351 FontInfo copy = font;
352 if (change_running.changed())
353 copy.setPaintColor(change_running.color());
355 copy.setPaintColor(Color_selectiontext);
357 x_ += pi_.pain.text(int(x_), yo_, s, copy);
361 void RowPainter::paintForeignMark(double orig_x, Language const * lang,
364 if (!lyxrc.mark_foreign_language)
366 if (lang == latex_language)
368 if (lang == pi_.base.bv->buffer().params().language)
371 int const y = yo_ + solid_line_offset_ + desc + int(solid_line_thickness_/2);
372 pi_.pain.line(int(orig_x), y, int(x_), y, Color_language,
373 Painter::line_solid, solid_line_thickness_);
377 void RowPainter::paintMisspelledMark(double orig_x, bool changed)
379 // if changed the misspelled marker gets placed slightly lower than normal
380 // to avoid drawing at the same vertical offset
381 float const y = yo_ + solid_line_offset_ + solid_line_thickness_
382 + (changed ? solid_line_thickness_ + 1 : 0)
383 + dotted_line_offset_;
384 pi_.pain.line(int(orig_x), int(y), int(x_), int(y), Color_error,
385 Painter::line_onoffdash, dotted_line_thickness_);
389 void RowPainter::paintFromPos(pos_type & vpos, bool changed)
391 pos_type const pos = bidi_.vis2log(vpos);
392 Font const orig_font = text_metrics_.displayFont(pit_, pos);
393 double const orig_x = x_;
395 // usual characters, no insets
396 char_type const c = par_.getChar(pos);
398 // special case languages
399 string const & lang = orig_font.language()->lang();
400 bool const hebrew = lang == "hebrew";
401 bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi" ||
405 bool const misspelled =
406 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
408 // draw as many chars as we can
409 if ((!hebrew && !arabic)
410 || (hebrew && !Encodings::isHebrewComposeChar(c))
411 || (arabic && !Encodings::isArabicComposeChar(c))) {
412 paintChars(vpos, orig_font.fontInfo(), hebrew, arabic);
414 paintHebrewComposeChar(vpos, orig_font.fontInfo());
416 paintArabicComposeChar(vpos, orig_font.fontInfo());
419 paintForeignMark(orig_x, orig_font.language());
421 if (lyxrc.spellcheck_continuously && misspelled) {
422 // check for cursor position
423 // don't draw misspelled marker for words at cursor position
424 // we don't want to disturb the process of text editing
425 BufferView const * bv = pi_.base.bv;
426 DocIterator const nw = bv->cursor().newWord();
427 bool new_word = false;
428 if (!nw.empty() && par_.id() == nw.paragraph().id()) {
429 pos_type cpos = nw.pos();
430 if (cpos > 0 && cpos == par_.size() && !par_.isWordSeparator(cpos-1))
432 else if (cpos > 0 && par_.isWordSeparator(cpos))
434 new_word = par_.isSameSpellRange(pos, cpos) ;
437 paintMisspelledMark(orig_x, changed);
442 void RowPainter::paintChangeBar()
444 pos_type const start = row_.pos();
445 pos_type end = row_.endpos();
447 if (par_.size() == end) {
448 // this is the last row of the paragraph;
449 // thus, we must also consider the imaginary end-of-par character
453 if (start == end || !par_.isChanged(start, end))
456 int const height = text_metrics_.isLastRow(pit_, row_)
460 pi_.pain.fillRectangle(5, yo_ - row_.ascent(), 3, height, Color_changebar);
464 void RowPainter::paintAppendix()
466 // only draw the appendix frame once (for the main text)
467 if (!par_.params().appendix() || !text_.isMainText())
470 int y = yo_ - row_.ascent();
472 if (par_.params().startOfAppendix())
473 y += 2 * defaultRowHeight();
475 pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
476 pi_.pain.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color_appendix);
480 void RowPainter::paintDepthBar()
482 depth_type const depth = par_.getDepth();
487 depth_type prev_depth = 0;
488 if (!text_metrics_.isFirstRow(pit_, row_)) {
489 pit_type pit2 = pit_;
492 prev_depth = pars_[pit2].getDepth();
495 depth_type next_depth = 0;
496 if (!text_metrics_.isLastRow(pit_, row_)) {
497 pit_type pit2 = pit_;
498 if (row_.endpos() >= pars_[pit2].size())
500 next_depth = pars_[pit2].getDepth();
503 for (depth_type i = 1; i <= depth; ++i) {
504 int const w = nestMargin() / 5;
505 int x = int(xo_) + w * i;
506 // only consider the changebar space if we're drawing outermost text
507 if (text_.isMainText())
508 x += changebarMargin();
510 int const starty = yo_ - row_.ascent();
511 int const h = row_.height() - 1 - (i - next_depth - 1) * 3;
513 pi_.pain.line(x, starty, x, starty + h, Color_depthbar);
516 pi_.pain.fillRectangle(x, starty, w, 2, Color_depthbar);
518 pi_.pain.fillRectangle(x, starty + h, w, 2, Color_depthbar);
523 int RowPainter::paintAppendixStart(int y)
525 FontInfo pb_font = sane_font;
526 pb_font.setColor(Color_appendix);
533 docstring const label = _("Appendix");
534 theFontMetrics(pb_font).rectText(label, w, a, d);
536 int const text_start = int(xo_ + (width_ - w) / 2);
537 int const text_end = text_start + w;
539 pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
541 pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
542 pi_.pain.line(text_end, y, int(xo_ + width_ - 2), y, Color_appendix);
544 return 3 * defaultRowHeight();
548 void RowPainter::paintFirst()
550 BufferParams const & bparams = pi_.base.bv->buffer().params();
551 Layout const & layout = par_.layout();
555 // start of appendix?
556 if (par_.params().startOfAppendix())
557 y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
559 if (bparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
561 if (layout.latextype == LATEX_PARAGRAPH
562 && !par_.getDepth()) {
563 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
565 Layout const & playout = pars_[pit_ - 1].layout();
566 if (playout.latextype == LATEX_PARAGRAPH
567 && !pars_[pit_ - 1].getDepth()) {
568 // is it right to use defskip here, too? (AS)
569 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
574 bool const is_seq = text_.isFirstInSequence(pit_);
575 //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << endl;
577 if (layout.labeltype >= LABEL_STATIC
578 && (layout.labeltype != LABEL_STATIC
579 || layout.latextype != LATEX_ENVIRONMENT
583 && (layout.labeltype == LABEL_TOP_ENVIRONMENT
584 || layout.labeltype == LABEL_BIBLIO
585 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
586 // the labels at the top of an environment.
587 // More or less for bibliography
588 paintTopLevelLabel();
593 void RowPainter::paintLabel()
595 docstring const str = par_.labelString();
599 BufferParams const & bparams = pi_.base.bv->buffer().params();
600 bool const is_rtl = text_.isRTL(par_);
601 Layout const & layout = par_.layout();
602 ParagraphParameters const & pparams = par_.params();
603 FontInfo const font = labelFont();
604 FontMetrics const & fm = theFontMetrics(font);
608 // this is special code for the chapter layout. This is
609 // printed in an extra row and has a pagebreak at
611 if (layout.counter == "chapter") {
612 double spacing_val = 1.0;
613 if (!pparams.spacing().isDefault()) {
614 spacing_val = pparams.spacing().getValue();
616 spacing_val = bparams.spacing().getValue();
619 int const labeladdon = int(fm.maxHeight() * layout.spacing.getValue() * spacing_val);
621 int const maxdesc = int(fm.maxDescent() * layout.spacing.getValue() * spacing_val)
622 + int(layout.parsep) * defaultRowHeight();
625 x = width_ - leftMargin() -
629 pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
632 x = width_ - leftMargin()
633 + fm.width(layout.labelsep);
635 x = x_ - fm.width(layout.labelsep)
639 pi_.pain.text(int(x), yo_, str, font);
644 void RowPainter::paintTopLevelLabel()
646 BufferParams const & bparams = pi_.base.bv->buffer().params();
647 bool const is_rtl = text_.isRTL(par_);
648 ParagraphParameters const & pparams = par_.params();
649 Layout const & layout = par_.layout();
650 FontInfo const font = labelFont();
651 docstring const str = par_.labelString();
655 double spacing_val = 1.0;
656 if (!pparams.spacing().isDefault())
657 spacing_val = pparams.spacing().getValue();
659 spacing_val = bparams.spacing().getValue();
661 FontMetrics const & fm = theFontMetrics(font);
663 int const labeladdon = int(fm.maxHeight()
664 * layout.spacing.getValue() * spacing_val);
667 int(fm.maxDescent() * layout.spacing.getValue() * spacing_val
668 + (layout.labelbottomsep * defaultRowHeight()));
671 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
674 x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
675 x -= fm.width(str) / 2;
677 x = width_ - leftMargin() - fm.width(str);
679 pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
682 /** Check if the current paragraph is the last paragraph in a
684 static int getEndLabel(pit_type p, Text const & text)
686 ParagraphList const & pars = text.paragraphs();
688 depth_type par_depth = pars[p].getDepth();
689 while (pit != pit_type(pars.size())) {
690 Layout const & layout = pars[pit].layout();
691 int const endlabeltype = layout.endlabeltype;
693 if (endlabeltype != END_LABEL_NO_LABEL) {
694 if (p + 1 == pit_type(pars.size()))
697 depth_type const next_depth =
698 pars[p + 1].getDepth();
699 if (par_depth > next_depth ||
700 (par_depth == next_depth && layout != pars[p + 1].layout()))
706 pit = text.outerHook(pit);
707 if (pit != pit_type(pars.size()))
708 par_depth = pars[pit].getDepth();
710 return END_LABEL_NO_LABEL;
714 void RowPainter::paintLast()
716 bool const is_rtl = text_.isRTL(par_);
717 int const endlabel = getEndLabel(pit_, text_);
719 // paint imaginary end-of-paragraph character
721 Change const & change = par_.lookupChange(par_.size());
722 if (change.changed()) {
723 FontMetrics const & fm =
724 theFontMetrics(pi_.base.bv->buffer().params().getFont());
725 int const length = fm.maxAscent() / 2;
726 Color col = change.color();
728 pi_.pain.line(int(x_) + 1, yo_ + 2, int(x_) + 1, yo_ + 2 - length, col,
729 Painter::line_solid, 3);
731 if (change.deleted()) {
732 pi_.pain.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1 + length,
733 yo_ + 2, col, Painter::line_solid, 3);
735 pi_.pain.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1,
736 yo_ + 2, col, Painter::line_solid, 3);
744 case END_LABEL_FILLED_BOX: {
745 FontInfo const font = labelFont();
746 FontMetrics const & fm = theFontMetrics(font);
747 int const size = int(0.75 * fm.maxAscent());
748 int const y = yo_ - size;
749 int const max_row_width = width_ - size - Inset::TEXT_TO_INSET_OFFSET;
750 int x = is_rtl ? nestMargin() + changebarMargin()
751 : max_row_width - text_metrics_.rightMargin(pm_);
753 // If needed, move the box a bit to avoid overlapping with text.
754 int const rem = max_row_width - row_.width();
756 x += is_rtl ? rem : - rem;
758 if (endlabel == END_LABEL_BOX)
759 pi_.pain.rectangle(x, y, size, size, Color_eolmarker);
761 pi_.pain.fillRectangle(x, y, size, size, Color_eolmarker);
765 case END_LABEL_STATIC: {
766 FontInfo const font = labelFont();
767 FontMetrics const & fm = theFontMetrics(font);
768 docstring const & str = par_.layout().endlabelstring();
769 double const x = is_rtl ? x_ - fm.width(str) : x_;
770 pi_.pain.text(int(x), yo_, str, font);
774 case END_LABEL_NO_LABEL:
775 if (lyxrc.paragraph_markers && size_type(pit_ + 1) < pars_.size()) {
776 docstring const s = docstring(1, char_type(0x00B6));
777 FontInfo f = FontInfo();
778 FontMetrics const & fm = theFontMetrics(f);
779 f.setColor(Color_paragraphmarker);
780 pi_.pain.text(int(x_), yo_, s, f);
788 void RowPainter::paintOnlyInsets()
790 CoordCache const & cache = pi_.base.bv->coordCache();
791 pos_type const end = row_.endpos();
792 for (pos_type pos = row_.pos(); pos != end; ++pos) {
793 // If outer row has changed, nested insets are repaint completely.
794 Inset const * inset = par_.getInset(pos);
795 bool const nested_inset = inset &&
796 ((inset->asInsetMath() &&
797 !inset->asInsetMath()->asMacroTemplate())
798 || inset->asInsetText()
799 || inset->asInsetTabular());
802 if (x_ > pi_.base.bv->workWidth()
803 || !cache.getInsets().has(inset))
805 x_ = cache.getInsets().x(inset);
807 bool const pi_selected = pi_.selected;
808 Cursor const & cur = pi_.base.bv->cursor();
809 if (cur.selection() && cur.text() == &text_
810 && cur.normalAnchor().text() == &text_)
811 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
812 paintInset(inset, pos);
813 pi_.selected = pi_selected;
818 void RowPainter::paintText()
820 pos_type const end = row_.endpos();
821 // Spaces at logical line breaks in bidi text must be skipped during
822 // painting. However, they may appear visually in the middle
823 // of a row; they must be skipped, wherever they are...
824 // * logically "abc_[HEBREW_\nHEBREW]"
825 // * visually "abc_[_WERBEH\nWERBEH]"
826 pos_type skipped_sep_vpos = -1;
827 pos_type body_pos = par_.beginOfBody();
829 (body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
833 Layout const & layout = par_.layout();
835 Change change_running;
836 int change_last_x = 0;
838 // check for possible inline completion
839 DocIterator const & inlineCompletionPos = pi_.base.bv->inlineCompletionPos();
840 pos_type inlineCompletionVPos = -1;
841 if (inlineCompletionPos.inTexted()
842 && inlineCompletionPos.text() == &text_
843 && inlineCompletionPos.pit() == pit_
844 && inlineCompletionPos.pos() - 1 >= row_.pos()
845 && inlineCompletionPos.pos() - 1 < row_.endpos()) {
846 // draw logically behind the previous character
847 inlineCompletionVPos = bidi_.log2vis(inlineCompletionPos.pos() - 1);
850 // Use font span to speed things up, see below
854 // If the last logical character is a separator, don't paint it, unless
855 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
856 if (end > 0 && end < par_.size() && par_.isSeparator(end - 1))
857 skipped_sep_vpos = bidi_.log2vis(end - 1);
859 for (pos_type vpos = row_.pos(); vpos < end; ) {
860 if (x_ > pi_.base.bv->workWidth())
863 // Skip the separator at the logical end of the row
864 if (vpos == skipped_sep_vpos) {
869 pos_type const pos = bidi_.vis2log(vpos);
871 if (pos >= par_.size()) {
876 // Use font span to speed things up, see above
877 if (vpos < font_span.first || vpos > font_span.last) {
878 font_span = par_.fontSpan(vpos);
879 font = text_metrics_.displayFont(pit_, vpos);
881 // split font span if inline completion is inside
882 if (font_span.first <= inlineCompletionVPos
883 && font_span.last > inlineCompletionVPos)
884 font_span.last = inlineCompletionVPos;
887 const int width_pos = pm_.singleWidth(pos, font);
889 if (x_ + width_pos < 0) {
894 Change const & change = par_.lookupChange(pos);
895 if (change.changed() && !change_running.changed()) {
896 change_running = change;
897 change_last_x = int(x_);
900 Inset const * inset = par_.getInset(pos);
901 bool const highly_editable_inset = inset
902 && inset->editable();
904 // If we reach the end of a change or if the author changes, paint it.
905 // We also don't paint across things like tables
906 if (change_running.changed() && (highly_editable_inset
907 || !change.changed() || !change_running.isSimilarTo(change))) {
908 // Calculate 1/3 height of the buffer's default font
909 FontMetrics const & fm
910 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
911 float const y_bar = change_running.deleted() ?
912 yo_ - fm.maxAscent() / 3 : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
913 pi_.pain.line(change_last_x, int(y_bar), int(x_), int(y_bar),
914 change_running.color(), Painter::line_solid, solid_line_thickness_);
916 // Change might continue with a different author or type
917 if (change.changed() && !highly_editable_inset) {
918 change_running = change;
919 change_last_x = int(x_);
921 change_running.setUnchanged();
924 if (body_pos > 0 && pos == body_pos - 1) {
925 int const lwidth = theFontMetrics(labelFont())
926 .width(layout.labelsep);
928 x_ += row_.label_hfill + lwidth - width_pos;
931 // Is the inline completion in front of character?
932 if (font.isRightToLeft() && vpos == inlineCompletionVPos)
933 paintInlineCompletion(font);
935 if (par_.isSeparator(pos)) {
936 Font const orig_font = text_metrics_.displayFont(pit_, pos);
937 double const orig_x = x_;
940 x_ += row_.separator;
941 paintForeignMark(orig_x, orig_font.language());
945 // If outer row has changed, nested insets are repaint completely.
946 pi_.base.bv->coordCache().insets().add(inset, int(x_), yo_);
948 bool const pi_selected = pi_.selected;
949 Cursor const & cur = pi_.base.bv->cursor();
950 if (cur.selection() && cur.text() == &text_
951 && cur.normalAnchor().text() == &text_)
952 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
953 paintInset(inset, pos);
954 pi_.selected = pi_selected;
958 // paint as many characters as possible.
959 paintFromPos(vpos, change_running.changed());
962 // Is the inline completion after character?
963 if (!font.isRightToLeft() && vpos - 1 == inlineCompletionVPos)
964 paintInlineCompletion(font);
967 // if we reach the end of a struck out range, paint it
968 if (change_running.changed()) {
969 FontMetrics const & fm
970 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
971 float const y_bar = change_running.deleted() ?
972 yo_ - fm.maxAscent() / 3 : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
973 pi_.pain.line(change_last_x, int(y_bar), int(x_), int(y_bar),
974 change_running.color(), Painter::line_solid, solid_line_thickness_);
975 change_running.setUnchanged();
980 void RowPainter::paintSelection()
982 if (!row_.selection())
984 Cursor const & curs = pi_.base.bv->cursor();
985 DocIterator beg = curs.selectionBegin();
987 beg.pos() = row_.sel_beg;
989 DocIterator end = curs.selectionEnd();
991 end.pos() = row_.sel_end;
993 bool const begin_boundary = beg.pos() >= row_.endpos();
994 bool const end_boundary = row_.sel_end == row_.endpos();
996 DocIterator cur = beg;
997 cur.boundary(begin_boundary);
998 int x1 = text_metrics_.cursorX(beg.top(), begin_boundary);
999 int x2 = text_metrics_.cursorX(end.top(), end_boundary);
1000 int const y1 = yo_ - row_.ascent();
1001 int const y2 = y1 + row_.height();
1003 int const rm = text_.isMainText() ? pi_.base.bv->rightMargin() : 0;
1004 int const lm = text_.isMainText() ? pi_.base.bv->leftMargin() : 0;
1007 if (row_.begin_margin_sel) {
1008 if (text_.isRTL(beg.paragraph())) {
1009 pi_.pain.fillRectangle(int(xo_ + x1), y1,
1010 text_metrics_.width() - rm - x1, y2 - y1, Color_selection);
1012 pi_.pain.fillRectangle(int(xo_ + lm), y1, x1 - lm, y2 - y1,
1017 if (row_.end_margin_sel) {
1018 if (text_.isRTL(beg.paragraph())) {
1019 pi_.pain.fillRectangle(int(xo_ + lm), y1, x2 - lm, y2 - y1,
1022 pi_.pain.fillRectangle(int(xo_ + x2), y1, text_metrics_.width() - rm - x2,
1023 y2 - y1, Color_selection);
1027 // if we are on a boundary from the beginning, it's probably
1028 // a RTL boundary and we jump to the other side directly as this
1029 // segement is 0-size and confuses the logic below
1031 cur.boundary(false);
1033 // go through row and draw from RTL boundary to RTL boundary
1035 bool draw_now = false;
1037 // simplified cursorForward code below which does not
1038 // descend into insets and which does not go into the
1039 // next line. Compare the logic with the original cursorForward
1041 // if left of boundary -> just jump to right side, but
1042 // for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
1043 if (cur.boundary()) {
1044 cur.boundary(false);
1045 } else if (text_metrics_.isRTLBoundary(cur.pit(), cur.pos() + 1)) {
1046 // in front of RTL boundary -> Stay on this side of the boundary
1047 // because: ab|cDDEEFFghi -> abc|DDEEFFghi
1056 if (cur.pos() == row_.endpos())
1061 // the previous segment was just drawn, now the next starts
1062 x1 = text_metrics_.cursorX(cur.top(), cur.boundary());
1065 if (!(cur < end) || draw_now) {
1066 x2 = text_metrics_.cursorX(cur.top(), cur.boundary());
1067 pi_.pain.fillRectangle(int(xo_ + min(x1, x2)), y1, abs(x2 - x1),
1068 y2 - y1, Color_selection);
1070 // reset x1, so it is set again next round (which will be on the
1071 // right side of a boundary or at the selection end)
1078 void RowPainter::paintInlineCompletion(Font const & font)
1080 docstring completion = pi_.base.bv->inlineCompletion();
1081 FontInfo f = font.fontInfo();
1082 bool rtl = font.isRightToLeft();
1084 // draw the unique and the non-unique completion part
1085 // Note: this is not time-critical as it is
1086 // only done once per screen.
1087 size_t uniqueTo = pi_.base.bv->inlineCompletionUniqueChars();
1088 docstring s1 = completion.substr(0, uniqueTo);
1089 docstring s2 = completion.substr(uniqueTo);
1090 ColorCode c1 = Color_inlinecompletion;
1091 ColorCode c2 = Color_nonunique_inlinecompletion;
1099 if (s1.size() > 0) {
1101 pi_.pain.text(int(x_), yo_, s1, f);
1102 x_ += theFontMetrics(font).width(s1);
1105 if (s2.size() > 0) {
1107 pi_.pain.text(int(x_), yo_, s2, f);
1108 x_ += theFontMetrics(font).width(s2);