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 Change prev_change = change_;
132 pi_.change_ = change_.changed() ? change_ : par_.lookupChange(pos);
134 int const x1 = int(x_);
135 pi_.base.bv->coordCache().insets().add(inset, x1, yo_);
136 // insets are painted completely. Recursive
137 // FIXME: it is wrong to completely paint the background
138 // if we want to do single row painting.
139 inset->drawBackground(pi_, x1, yo_);
140 inset->drawSelection(pi_, x1, yo_);
141 inset->draw(pi_, x1, yo_);
143 Dimension const & dim = pm_.insetDimension(inset);
145 paintForeignMark(x_, font.language(), dim.descent());
149 // Restore full_repaint status.
150 pi_.full_repaint = pi_full_repaint;
151 pi_.change_ = prev_change;
154 int const x2 = x1 + dim.wid;
155 int const y1 = yo_ + dim.des;
156 int const y2 = yo_ - dim.asc;
157 pi_.pain.line(x1, y1, x1, y2, Color_green);
158 pi_.pain.line(x1, y1, x2, y1, Color_green);
159 pi_.pain.line(x2, y1, x2, y2, Color_green);
160 pi_.pain.line(x1, y2, x2, y2, Color_green);
165 void RowPainter::paintHebrewComposeChar(pos_type & vpos, FontInfo const & font)
167 pos_type pos = bidi_.vis2log(vpos);
172 char_type c = par_.getChar(pos);
176 int const width = theFontMetrics(font).width(c);
179 for (pos_type i = pos - 1; i >= 0; --i) {
181 if (!Encodings::isHebrewComposeChar(c)) {
182 if (isPrintableNonspace(c)) {
183 int const width2 = pm_.singleWidth(i,
184 text_metrics_.displayFont(pit_, i));
185 dx = (c == 0x05e8 || // resh
186 c == 0x05d3) // dalet
188 : (width2 - width) / 2;
195 pi_.pain.text(int(x_) + dx, yo_, str, font);
199 void RowPainter::paintArabicComposeChar(pos_type & vpos, FontInfo const & font)
201 pos_type pos = bidi_.vis2log(vpos);
205 char_type c = par_.getChar(pos);
206 c = par_.transformChar(c, pos);
210 int const width = theFontMetrics(font).width(c);
213 for (pos_type i = pos - 1; i >= 0; --i) {
215 if (!Encodings::isArabicComposeChar(c)) {
216 if (isPrintableNonspace(c)) {
217 int const width2 = pm_.singleWidth(i,
218 text_metrics_.displayFont(pit_, i));
219 dx = (width2 - width) / 2;
225 pi_.pain.text(int(x_) + dx, yo_, str, font);
229 void RowPainter::paintChars(pos_type & vpos, FontInfo const & font,
230 bool hebrew, bool arabic)
232 // This method takes up 70% of time when typing
233 pos_type pos = bidi_.vis2log(vpos);
235 char_type prev_char = par_.getChar(pos);
236 vector<char_type> str;
238 str.push_back(prev_char);
240 // FIXME: Why only round brackets and why the difference to
241 // Hebrew? See also Paragraph::getUChar
243 char_type c = str[0];
248 str[0] = par_.transformChar(c, pos);
251 pos_type const end = row_.endpos();
252 FontSpan const font_span = par_.fontSpan(pos);
253 // Track-change status.
254 Change const & change_running = par_.lookupChange(pos);
257 bool const selection = (pos >= row_.sel_beg && pos < row_.sel_end)
261 bool const spell_state =
262 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
264 // collect as much similar chars as we can
265 for (++vpos ; vpos < end ; ++vpos) {
266 // Work-around bug #6920
267 // The bug can be reproduced with DejaVu font under Linux.
268 // The issue is that we compute the metrics character by character
269 // in ParagraphMetrics::singleWidth(); but we paint word by word
270 // for performance reason.
271 // Maybe a more general fix would be draw character by character
272 // for some predefined fonts on some platform. In arabic and
273 // Hebrew we already do paint this way.
274 if (prev_char == 'f' || lyxrc.force_paint_single_char)
277 pos = bidi_.vis2log(vpos);
278 if (pos < font_span.first || pos > font_span.last)
281 bool const new_selection = pos >= row_.sel_beg && pos < row_.sel_end;
282 if (new_selection != selection)
283 // Selection ends or starts here.
286 bool const new_spell_state =
287 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
288 if (new_spell_state != spell_state)
289 // Spell checker state changed here.
292 Change const & change = par_.lookupChange(pos);
293 if (!change_running.isSimilarTo(change))
294 // Track change type or author has changed.
297 char_type c = par_.getChar(pos);
302 if (!isPrintableNonspace(c))
305 /* Because we do our own bidi, at this point the strings are
306 * already in visual order. However, Qt also applies its own
307 * bidi algorithm to strings that it paints to the screen.
308 * Therefore, if we were to paint Hebrew/Arabic words as a
309 * single string, the letters in the words would get reversed
310 * again. In order to avoid that, we don't collect Hebrew/
311 * Arabic characters, but rather paint them one at a time.
312 * See also http://thread.gmane.org/gmane.editors.lyx.devel/79740
317 /* FIXME: these checks are irrelevant, since 'arabic' and
318 * 'hebrew' alone are already going to trigger a break.
319 * However, this should not be removed completely, because
320 * if an alternative solution is found which allows grouping
321 * of arabic and hebrew characters, then these breaks may have
324 if (arabic && Encodings::isArabicComposeChar(c))
327 if (hebrew && Encodings::isHebrewComposeChar(c))
331 // FIXME: Why only round brackets and why the difference to
332 // Hebrew? See also Paragraph::getUChar
338 c = par_.transformChar(c, pos);
339 /* see comment in hebrew, explaining why we break */
347 docstring s(&str[0], str.size());
350 s.replace(0,1,from_ascii(" "));
352 if (!selection && !change_running.changed()) {
353 x_ += pi_.pain.text(int(x_), yo_, s, font);
357 FontInfo copy = font;
358 if (change_running.changed())
359 copy.setPaintColor(change_running.color());
361 copy.setPaintColor(Color_selectiontext);
363 x_ += pi_.pain.text(int(x_), yo_, s, copy);
367 void RowPainter::paintSeparator(double orig_x, double width,
368 FontInfo const & font)
370 pi_.pain.textDecoration(font, int(orig_x), yo_, int(width));
375 void RowPainter::paintForeignMark(double orig_x, Language const * lang,
378 if (!lyxrc.mark_foreign_language)
380 if (lang == latex_language)
382 if (lang == pi_.base.bv->buffer().params().language)
385 int const y = yo_ + solid_line_offset_ + desc + int(solid_line_thickness_/2);
386 pi_.pain.line(int(orig_x), y, int(x_), y, Color_language,
387 Painter::line_solid, solid_line_thickness_);
391 void RowPainter::paintMisspelledMark(double orig_x, bool changed)
393 // if changed the misspelled marker gets placed slightly lower than normal
394 // to avoid drawing at the same vertical offset
395 float const y = yo_ + solid_line_offset_ + solid_line_thickness_
396 + (changed ? solid_line_thickness_ + 1 : 0)
397 + dotted_line_offset_;
398 pi_.pain.line(int(orig_x), int(y), int(x_), int(y), Color_error,
399 Painter::line_onoffdash, dotted_line_thickness_);
403 void RowPainter::paintFromPos(pos_type & vpos, bool changed)
405 pos_type const pos = bidi_.vis2log(vpos);
406 Font const orig_font = text_metrics_.displayFont(pit_, pos);
407 double const orig_x = x_;
409 // usual characters, no insets
410 char_type const c = par_.getChar(pos);
412 // special case languages
413 string const & lang = orig_font.language()->lang();
414 bool const hebrew = lang == "hebrew";
415 bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi" ||
419 bool const misspelled =
420 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
422 // draw as many chars as we can
423 if ((!hebrew && !arabic)
424 || (hebrew && !Encodings::isHebrewComposeChar(c))
425 || (arabic && !Encodings::isArabicComposeChar(c))) {
426 paintChars(vpos, orig_font.fontInfo(), hebrew, arabic);
428 paintHebrewComposeChar(vpos, orig_font.fontInfo());
430 paintArabicComposeChar(vpos, orig_font.fontInfo());
433 paintForeignMark(orig_x, orig_font.language());
435 if (lyxrc.spellcheck_continuously && misspelled) {
436 // check for cursor position
437 // don't draw misspelled marker for words at cursor position
438 // we don't want to disturb the process of text editing
439 BufferView const * bv = pi_.base.bv;
440 DocIterator const nw = bv->cursor().newWord();
441 bool new_word = false;
442 if (!nw.empty() && par_.id() == nw.paragraph().id()) {
443 pos_type cpos = nw.pos();
444 if (cpos > 0 && cpos == par_.size() && !par_.isWordSeparator(cpos-1))
446 else if (cpos > 0 && par_.isWordSeparator(cpos))
448 new_word = par_.isSameSpellRange(pos, cpos) ;
451 paintMisspelledMark(orig_x, changed);
456 void RowPainter::paintChangeBar()
458 pos_type const start = row_.pos();
459 pos_type end = row_.endpos();
461 if (par_.size() == end) {
462 // this is the last row of the paragraph;
463 // thus, we must also consider the imaginary end-of-par character
467 if (start == end || !par_.isChanged(start, end))
470 int const height = text_metrics_.isLastRow(pit_, row_)
474 pi_.pain.fillRectangle(5, yo_ - row_.ascent(), 3, height, Color_changebar);
478 void RowPainter::paintAppendix()
480 // only draw the appendix frame once (for the main text)
481 if (!par_.params().appendix() || !text_.isMainText())
484 int y = yo_ - row_.ascent();
486 if (par_.params().startOfAppendix())
487 y += 2 * defaultRowHeight();
489 pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
490 pi_.pain.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color_appendix);
494 void RowPainter::paintDepthBar()
496 depth_type const depth = par_.getDepth();
501 depth_type prev_depth = 0;
502 if (!text_metrics_.isFirstRow(pit_, row_)) {
503 pit_type pit2 = pit_;
506 prev_depth = pars_[pit2].getDepth();
509 depth_type next_depth = 0;
510 if (!text_metrics_.isLastRow(pit_, row_)) {
511 pit_type pit2 = pit_;
512 if (row_.endpos() >= pars_[pit2].size())
514 next_depth = pars_[pit2].getDepth();
517 for (depth_type i = 1; i <= depth; ++i) {
518 int const w = nestMargin() / 5;
519 int x = int(xo_) + w * i;
520 // only consider the changebar space if we're drawing outermost text
521 if (text_.isMainText())
522 x += changebarMargin();
524 int const starty = yo_ - row_.ascent();
525 int const h = row_.height() - 1 - (i - next_depth - 1) * 3;
527 pi_.pain.line(x, starty, x, starty + h, Color_depthbar);
530 pi_.pain.fillRectangle(x, starty, w, 2, Color_depthbar);
532 pi_.pain.fillRectangle(x, starty + h, w, 2, Color_depthbar);
537 int RowPainter::paintAppendixStart(int y)
539 FontInfo pb_font = sane_font;
540 pb_font.setColor(Color_appendix);
547 docstring const label = _("Appendix");
548 theFontMetrics(pb_font).rectText(label, w, a, d);
550 int const text_start = int(xo_ + (width_ - w) / 2);
551 int const text_end = text_start + w;
553 pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
555 pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
556 pi_.pain.line(text_end, y, int(xo_ + width_ - 2), y, Color_appendix);
558 return 3 * defaultRowHeight();
562 void RowPainter::paintFirst()
564 BufferParams const & bparams = pi_.base.bv->buffer().params();
565 Layout const & layout = par_.layout();
569 // start of appendix?
570 if (par_.params().startOfAppendix())
571 y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
573 if (bparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
575 if (layout.latextype == LATEX_PARAGRAPH
576 && !par_.getDepth()) {
577 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
579 Layout const & playout = pars_[pit_ - 1].layout();
580 if (playout.latextype == LATEX_PARAGRAPH
581 && !pars_[pit_ - 1].getDepth()) {
582 // is it right to use defskip here, too? (AS)
583 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
588 bool const is_seq = text_.isFirstInSequence(pit_);
589 //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << endl;
591 if (layout.labeltype >= LABEL_STATIC
592 && (layout.labeltype != LABEL_STATIC
593 || layout.latextype != LATEX_ENVIRONMENT
597 && (layout.labeltype == LABEL_TOP_ENVIRONMENT
598 || layout.labeltype == LABEL_BIBLIO
599 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
600 // the labels at the top of an environment.
601 // More or less for bibliography
602 paintTopLevelLabel();
607 void RowPainter::paintLabel()
609 docstring const str = par_.labelString();
613 BufferParams const & bparams = pi_.base.bv->buffer().params();
614 bool const is_rtl = text_.isRTL(par_);
615 Layout const & layout = par_.layout();
616 ParagraphParameters const & pparams = par_.params();
617 FontInfo const font = labelFont();
618 FontMetrics const & fm = theFontMetrics(font);
622 // this is special code for the chapter layout. This is
623 // printed in an extra row and has a pagebreak at
625 if (layout.counter == "chapter") {
626 double spacing_val = 1.0;
627 if (!pparams.spacing().isDefault()) {
628 spacing_val = pparams.spacing().getValue();
630 spacing_val = bparams.spacing().getValue();
633 int const labeladdon = int(fm.maxHeight() * layout.spacing.getValue() * spacing_val);
635 int const maxdesc = int(fm.maxDescent() * layout.spacing.getValue() * spacing_val)
636 + int(layout.parsep) * defaultRowHeight();
639 x = width_ - leftMargin() -
643 pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
646 x = width_ - leftMargin()
647 + fm.width(layout.labelsep);
649 x = x_ - fm.width(layout.labelsep)
653 pi_.pain.text(int(x), yo_, str, font);
658 void RowPainter::paintTopLevelLabel()
660 BufferParams const & bparams = pi_.base.bv->buffer().params();
661 bool const is_rtl = text_.isRTL(par_);
662 ParagraphParameters const & pparams = par_.params();
663 Layout const & layout = par_.layout();
664 FontInfo const font = labelFont();
665 docstring const str = par_.labelString();
669 double spacing_val = 1.0;
670 if (!pparams.spacing().isDefault())
671 spacing_val = pparams.spacing().getValue();
673 spacing_val = bparams.spacing().getValue();
675 FontMetrics const & fm = theFontMetrics(font);
677 int const labeladdon = int(fm.maxHeight()
678 * layout.spacing.getValue() * spacing_val);
681 int(fm.maxDescent() * layout.spacing.getValue() * spacing_val
682 + (layout.labelbottomsep * defaultRowHeight()));
685 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
688 x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
689 x -= fm.width(str) / 2;
691 x = width_ - leftMargin() - fm.width(str);
693 pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
696 /** Check if the current paragraph is the last paragraph in a
698 static int getEndLabel(pit_type p, Text const & text)
700 ParagraphList const & pars = text.paragraphs();
702 depth_type par_depth = pars[p].getDepth();
703 while (pit != pit_type(pars.size())) {
704 Layout const & layout = pars[pit].layout();
705 int const endlabeltype = layout.endlabeltype;
707 if (endlabeltype != END_LABEL_NO_LABEL) {
708 if (p + 1 == pit_type(pars.size()))
711 depth_type const next_depth =
712 pars[p + 1].getDepth();
713 if (par_depth > next_depth ||
714 (par_depth == next_depth && layout != pars[p + 1].layout()))
720 pit = text.outerHook(pit);
721 if (pit != pit_type(pars.size()))
722 par_depth = pars[pit].getDepth();
724 return END_LABEL_NO_LABEL;
728 void RowPainter::paintLast()
730 bool const is_rtl = text_.isRTL(par_);
731 int const endlabel = getEndLabel(pit_, text_);
733 // paint imaginary end-of-paragraph character
735 Change const & change = par_.lookupChange(par_.size());
736 if (change.changed()) {
737 FontMetrics const & fm =
738 theFontMetrics(pi_.base.bv->buffer().params().getFont());
739 int const length = fm.maxAscent() / 2;
740 Color col = change.color();
742 pi_.pain.line(int(x_) + 1, yo_ + 2, int(x_) + 1, yo_ + 2 - length, col,
743 Painter::line_solid, 3);
745 if (change.deleted()) {
746 pi_.pain.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1 + length,
747 yo_ + 2, col, Painter::line_solid, 3);
749 pi_.pain.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1,
750 yo_ + 2, col, Painter::line_solid, 3);
758 case END_LABEL_FILLED_BOX: {
759 FontInfo const font = labelFont();
760 FontMetrics const & fm = theFontMetrics(font);
761 int const size = int(0.75 * fm.maxAscent());
762 int const y = yo_ - size;
763 int const max_row_width = width_ - size - Inset::TEXT_TO_INSET_OFFSET;
764 int x = is_rtl ? nestMargin() + changebarMargin()
765 : max_row_width - text_metrics_.rightMargin(pm_);
767 // If needed, move the box a bit to avoid overlapping with text.
768 int const rem = max_row_width - row_.width();
770 x += is_rtl ? rem : - rem;
772 if (endlabel == END_LABEL_BOX)
773 pi_.pain.rectangle(x, y, size, size, Color_eolmarker);
775 pi_.pain.fillRectangle(x, y, size, size, Color_eolmarker);
779 case END_LABEL_STATIC: {
780 FontInfo const font = labelFont();
781 FontMetrics const & fm = theFontMetrics(font);
782 docstring const & str = par_.layout().endlabelstring();
783 double const x = is_rtl ? x_ - fm.width(str) : x_;
784 pi_.pain.text(int(x), yo_, str, font);
788 case END_LABEL_NO_LABEL:
789 if (lyxrc.paragraph_markers && size_type(pit_ + 1) < pars_.size()) {
790 docstring const s = docstring(1, char_type(0x00B6));
791 FontInfo f = FontInfo();
792 FontMetrics const & fm = theFontMetrics(f);
793 f.setColor(Color_paragraphmarker);
794 pi_.pain.text(int(x_), yo_, s, f);
802 void RowPainter::paintOnlyInsets()
804 CoordCache const & cache = pi_.base.bv->coordCache();
805 pos_type const end = row_.endpos();
806 for (pos_type pos = row_.pos(); pos != end; ++pos) {
807 // If outer row has changed, nested insets are repaint completely.
808 Inset const * inset = par_.getInset(pos);
809 bool const nested_inset = inset &&
810 ((inset->asInsetMath() &&
811 !inset->asInsetMath()->asMacroTemplate())
812 || inset->asInsetText()
813 || inset->asInsetTabular());
816 if (x_ > pi_.base.bv->workWidth()
817 || !cache.getInsets().has(inset))
819 x_ = cache.getInsets().x(inset);
821 bool const pi_selected = pi_.selected;
822 Cursor const & cur = pi_.base.bv->cursor();
823 if (cur.selection() && cur.text() == &text_
824 && cur.normalAnchor().text() == &text_)
825 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
826 paintInset(inset, pos);
827 pi_.selected = pi_selected;
832 void RowPainter::paintText()
834 pos_type const end = row_.endpos();
835 // Spaces at logical line breaks in bidi text must be skipped during
836 // painting. However, they may appear visually in the middle
837 // of a row; they must be skipped, wherever they are...
838 // * logically "abc_[HEBREW_\nHEBREW]"
839 // * visually "abc_[_WERBEH\nWERBEH]"
840 pos_type skipped_sep_vpos = -1;
841 pos_type body_pos = par_.beginOfBody();
843 (body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
847 Layout const & layout = par_.layout();
849 Change change_running;
850 int change_last_x = 0;
852 // check for possible inline completion
853 DocIterator const & inlineCompletionPos = pi_.base.bv->inlineCompletionPos();
854 pos_type inlineCompletionVPos = -1;
855 if (inlineCompletionPos.inTexted()
856 && inlineCompletionPos.text() == &text_
857 && inlineCompletionPos.pit() == pit_
858 && inlineCompletionPos.pos() - 1 >= row_.pos()
859 && inlineCompletionPos.pos() - 1 < row_.endpos()) {
860 // draw logically behind the previous character
861 inlineCompletionVPos = bidi_.log2vis(inlineCompletionPos.pos() - 1);
864 // Use font span to speed things up, see below
868 // If the last logical character is a separator, don't paint it, unless
869 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
870 if (end > 0 && end < par_.size() && par_.isSeparator(end - 1))
871 skipped_sep_vpos = bidi_.log2vis(end - 1);
873 for (pos_type vpos = row_.pos(); vpos < end; ) {
874 if (x_ > pi_.base.bv->workWidth())
877 // Skip the separator at the logical end of the row
878 if (vpos == skipped_sep_vpos) {
883 pos_type const pos = bidi_.vis2log(vpos);
885 if (pos >= par_.size()) {
890 // Use font span to speed things up, see above
891 if (vpos < font_span.first || vpos > font_span.last) {
892 font_span = par_.fontSpan(vpos);
893 font = text_metrics_.displayFont(pit_, vpos);
895 // split font span if inline completion is inside
896 if (font_span.first <= inlineCompletionVPos
897 && font_span.last > inlineCompletionVPos)
898 font_span.last = inlineCompletionVPos;
901 const int width_pos = pm_.singleWidth(pos, font);
903 if (x_ + width_pos < 0) {
908 Change const & change = par_.lookupChange(pos);
909 if (change.changed() && !change_running.changed()) {
910 change_running = change;
911 change_last_x = int(x_);
914 Inset const * inset = par_.getInset(pos);
915 bool const highly_editable_inset = inset
916 && inset->editable();
918 // If we reach the end of a change or if the author changes, paint it.
919 // We also don't paint across things like tables
920 if (change_running.changed() && (highly_editable_inset
921 || !change.changed() || !change_running.isSimilarTo(change))) {
922 // Calculate 1/3 height of the buffer's default font
923 FontMetrics const & fm
924 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
925 float const y_bar = change_running.deleted() ?
926 yo_ - fm.maxAscent() / 3 : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
927 pi_.pain.line(change_last_x, int(y_bar), int(x_), int(y_bar),
928 change_running.color(), Painter::line_solid, solid_line_thickness_);
930 // Change might continue with a different author or type
931 if (change.changed() && !highly_editable_inset) {
932 change_running = change;
933 change_last_x = int(x_);
935 change_running.setUnchanged();
938 if (body_pos > 0 && pos == body_pos - 1) {
939 int const lwidth = theFontMetrics(labelFont())
940 .width(layout.labelsep);
942 x_ += row_.label_hfill + lwidth - width_pos;
945 // Is the inline completion in front of character?
946 if (font.isRightToLeft() && vpos == inlineCompletionVPos)
947 paintInlineCompletion(font);
949 if (par_.isSeparator(pos)) {
950 Font const orig_font = text_metrics_.displayFont(pit_, pos);
951 double const orig_x = x_;
952 double separator_width = width_pos;
954 separator_width += row_.separator;
955 paintSeparator(orig_x, separator_width, orig_font.fontInfo());
956 paintForeignMark(orig_x, orig_font.language());
960 // If outer row has changed, nested insets are repaint completely.
961 pi_.base.bv->coordCache().insets().add(inset, int(x_), yo_);
963 bool const pi_selected = pi_.selected;
964 Cursor const & cur = pi_.base.bv->cursor();
965 if (cur.selection() && cur.text() == &text_
966 && cur.normalAnchor().text() == &text_)
967 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
968 paintInset(inset, pos);
969 pi_.selected = pi_selected;
973 // paint as many characters as possible.
974 paintFromPos(vpos, change_running.changed());
977 // Is the inline completion after character?
978 if (!font.isRightToLeft() && vpos - 1 == inlineCompletionVPos)
979 paintInlineCompletion(font);
982 // if we reach the end of a struck out range, paint it
983 if (change_running.changed()) {
984 FontMetrics const & fm
985 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
986 float const y_bar = change_running.deleted() ?
987 yo_ - fm.maxAscent() / 3 : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
988 pi_.pain.line(change_last_x, int(y_bar), int(x_), int(y_bar),
989 change_running.color(), Painter::line_solid, solid_line_thickness_);
990 change_running.setUnchanged();
995 void RowPainter::paintSelection()
997 if (!row_.selection())
999 Cursor const & curs = pi_.base.bv->cursor();
1000 DocIterator beg = curs.selectionBegin();
1002 beg.pos() = row_.sel_beg;
1004 DocIterator end = curs.selectionEnd();
1006 end.pos() = row_.sel_end;
1008 bool const begin_boundary = beg.pos() >= row_.endpos();
1009 bool const end_boundary = row_.sel_end == row_.endpos();
1011 DocIterator cur = beg;
1012 cur.boundary(begin_boundary);
1013 int x1 = text_metrics_.cursorX(beg.top(), begin_boundary);
1014 int x2 = text_metrics_.cursorX(end.top(), end_boundary);
1015 int const y1 = yo_ - row_.ascent();
1016 int const y2 = y1 + row_.height();
1018 int const rm = text_.isMainText() ? pi_.base.bv->rightMargin() : 0;
1019 int const lm = text_.isMainText() ? pi_.base.bv->leftMargin() : 0;
1022 if (row_.begin_margin_sel) {
1023 if (text_.isRTL(beg.paragraph())) {
1024 pi_.pain.fillRectangle(int(xo_ + x1), y1,
1025 text_metrics_.width() - rm - x1, y2 - y1, Color_selection);
1027 pi_.pain.fillRectangle(int(xo_ + lm), y1, x1 - lm, y2 - y1,
1032 if (row_.end_margin_sel) {
1033 if (text_.isRTL(beg.paragraph())) {
1034 pi_.pain.fillRectangle(int(xo_ + lm), y1, x2 - lm, y2 - y1,
1037 pi_.pain.fillRectangle(int(xo_ + x2), y1, text_metrics_.width() - rm - x2,
1038 y2 - y1, Color_selection);
1042 // if we are on a boundary from the beginning, it's probably
1043 // a RTL boundary and we jump to the other side directly as this
1044 // segement is 0-size and confuses the logic below
1046 cur.boundary(false);
1048 // go through row and draw from RTL boundary to RTL boundary
1050 bool draw_now = false;
1052 // simplified cursorForward code below which does not
1053 // descend into insets and which does not go into the
1054 // next line. Compare the logic with the original cursorForward
1056 // if left of boundary -> just jump to right side, but
1057 // for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
1058 if (cur.boundary()) {
1059 cur.boundary(false);
1060 } else if (text_metrics_.isRTLBoundary(cur.pit(), cur.pos() + 1)) {
1061 // in front of RTL boundary -> Stay on this side of the boundary
1062 // because: ab|cDDEEFFghi -> abc|DDEEFFghi
1071 if (cur.pos() == row_.endpos())
1076 // the previous segment was just drawn, now the next starts
1077 x1 = text_metrics_.cursorX(cur.top(), cur.boundary());
1080 if (!(cur < end) || draw_now) {
1081 x2 = text_metrics_.cursorX(cur.top(), cur.boundary());
1082 pi_.pain.fillRectangle(int(xo_ + min(x1, x2)), y1, abs(x2 - x1),
1083 y2 - y1, Color_selection);
1085 // reset x1, so it is set again next round (which will be on the
1086 // right side of a boundary or at the selection end)
1093 void RowPainter::paintInlineCompletion(Font const & font)
1095 docstring completion = pi_.base.bv->inlineCompletion();
1096 FontInfo f = font.fontInfo();
1097 bool rtl = font.isRightToLeft();
1099 // draw the unique and the non-unique completion part
1100 // Note: this is not time-critical as it is
1101 // only done once per screen.
1102 size_t uniqueTo = pi_.base.bv->inlineCompletionUniqueChars();
1103 docstring s1 = completion.substr(0, uniqueTo);
1104 docstring s2 = completion.substr(uniqueTo);
1105 ColorCode c1 = Color_inlinecompletion;
1106 ColorCode c2 = Color_nonunique_inlinecompletion;
1114 if (s1.size() > 0) {
1116 pi_.pain.text(int(x_), yo_, s1, f);
1117 x_ += theFontMetrics(font).width(s1);
1120 if (s2.size() > 0) {
1122 pi_.pain.text(int(x_), yo_, s2, f);
1123 x_ += theFontMetrics(font).width(s2);