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;
58 RowPainter::RowPainter(PainterInfo & pi,
59 Text const & text, pit_type pit, Row const & row, Bidi & bidi, int x, int y)
60 : pi_(pi), text_(text),
61 text_metrics_(pi_.base.bv->textMetrics(&text)),
62 pars_(text.paragraphs()),
63 row_(row), pit_(pit), par_(text.paragraphs()[pit]),
64 pm_(text_metrics_.parMetrics(pit)),
65 bidi_(bidi), change_(pi_.change_),
66 xo_(x), yo_(y), width_(text_metrics_.width()),
67 solid_line_thickness_(1.0), solid_line_offset_(1),
68 dotted_line_thickness_(1.0), dotted_line_offset_(2)
70 bidi_.computeTables(par_, pi_.base.bv->buffer(), row_);
72 if (lyxrc.zoom >= 200) {
73 // derive the line thickness from zoom factor
74 // the zoom is given in percent
75 // (increase thickness at 250%, 450% etc.)
76 solid_line_thickness_ = (float)(int((lyxrc.zoom + 50) / 200.0));
77 // adjust line_offset_ too
78 solid_line_offset_ = 1 + int(0.5 * solid_line_thickness_);
80 if (lyxrc.zoom >= 100) {
81 // derive the line thickness from zoom factor
82 // the zoom is given in percent
83 // (increase thickness at 150%, 250% etc.)
84 dotted_line_thickness_ = (float)(int((lyxrc.zoom + 50) / 100.0));
85 // adjust line_offset_ too
86 dotted_line_offset_ = int(0.5 * dotted_line_thickness_) + 1;
91 //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
95 LBUFERR(pit < int(text.paragraphs().size()));
99 FontInfo RowPainter::labelFont() const
101 FontInfo f = text_.labelFont(par_);
103 if (row_.begin_margin_sel || pi_.selected)
104 f.setPaintColor(Color_selectiontext);
109 int RowPainter::leftMargin() const
111 return text_metrics_.leftMargin(text_metrics_.width(), pit_,
115 // If you want to debug inset metrics uncomment the following line:
116 //#define DEBUG_METRICS
117 // This draws green lines around each inset.
120 void RowPainter::paintInset(Inset const * inset, pos_type const pos)
122 Font const font = text_metrics_.displayFont(pit_, pos);
124 LASSERT(inset, return);
125 // Backup full_repaint status because some insets (InsetTabular)
126 // requires a full repaint
127 bool pi_full_repaint = pi_.full_repaint;
129 pi_.base.font = inset->inheritFont() ? font.fontInfo() :
130 pi_.base.bv->buffer().params().getFont().fontInfo();
131 pi_.ltr_pos = (bidi_.level(pos) % 2 == 0);
132 Change prev_change = change_;
133 pi_.change_ = change_.changed() ? change_ : par_.lookupChange(pos);
135 int const x1 = int(x_);
136 pi_.base.bv->coordCache().insets().add(inset, x1, yo_);
137 // insets are painted completely. Recursive
138 // FIXME: it is wrong to completely paint the background
139 // if we want to do single row painting.
140 inset->drawBackground(pi_, x1, yo_);
141 inset->drawSelection(pi_, x1, yo_);
142 inset->draw(pi_, x1, yo_);
144 Dimension const & dim = pm_.insetDimension(inset);
146 paintForeignMark(x_, font.language(), dim.descent());
150 // Restore full_repaint status.
151 pi_.full_repaint = pi_full_repaint;
152 pi_.change_ = prev_change;
155 int const x2 = x1 + dim.wid;
156 int const y1 = yo_ + dim.des;
157 int const y2 = yo_ - dim.asc;
158 pi_.pain.line(x1, y1, x1, y2, Color_green);
159 pi_.pain.line(x1, y1, x2, y1, Color_green);
160 pi_.pain.line(x2, y1, x2, y2, Color_green);
161 pi_.pain.line(x1, y2, x2, y2, Color_green);
166 void RowPainter::paintHebrewComposeChar(pos_type & vpos, FontInfo const & font)
168 pos_type pos = bidi_.vis2log(vpos);
173 char_type c = par_.getChar(pos);
177 int const width = theFontMetrics(font).width(c);
180 for (pos_type i = pos - 1; i >= 0; --i) {
182 if (!Encodings::isHebrewComposeChar(c)) {
183 if (isPrintableNonspace(c)) {
184 int const width2 = pm_.singleWidth(i,
185 text_metrics_.displayFont(pit_, i));
186 dx = (c == 0x05e8 || // resh
187 c == 0x05d3) // dalet
189 : (width2 - width) / 2;
196 pi_.pain.text(int(x_) + dx, yo_, str, font);
200 void RowPainter::paintArabicComposeChar(pos_type & vpos, FontInfo const & font)
202 pos_type pos = bidi_.vis2log(vpos);
206 char_type c = par_.getChar(pos);
207 c = par_.transformChar(c, pos);
211 int const width = theFontMetrics(font).width(c);
214 for (pos_type i = pos - 1; i >= 0; --i) {
216 if (!Encodings::isArabicComposeChar(c)) {
217 if (isPrintableNonspace(c)) {
218 int const width2 = pm_.singleWidth(i,
219 text_metrics_.displayFont(pit_, i));
220 dx = (width2 - width) / 2;
226 pi_.pain.text(int(x_) + dx, yo_, str, font);
230 void RowPainter::paintChars(pos_type & vpos, FontInfo const & font,
231 bool hebrew, bool arabic)
233 // This method takes up 70% of time when typing
234 pos_type pos = bidi_.vis2log(vpos);
236 char_type prev_char = par_.getChar(pos);
237 vector<char_type> str;
239 str.push_back(prev_char);
241 // FIXME: Why only round brackets and why the difference to
242 // Hebrew? See also Paragraph::getUChar
244 char_type c = str[0];
249 str[0] = par_.transformChar(c, pos);
252 pos_type const end = row_.endpos();
253 FontSpan const font_span = par_.fontSpan(pos);
254 // Track-change status.
255 Change const & change_running = par_.lookupChange(pos);
258 bool const selection = (pos >= row_.sel_beg && pos < row_.sel_end)
262 bool const spell_state =
263 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
265 // collect as much similar chars as we can
266 for (++vpos ; vpos < end ; ++vpos) {
267 if (lyxrc.force_paint_single_char)
270 pos = bidi_.vis2log(vpos);
271 if (pos < font_span.first || pos > font_span.last)
274 bool const new_selection = pos >= row_.sel_beg && pos < row_.sel_end;
275 if (new_selection != selection)
276 // Selection ends or starts here.
279 bool const new_spell_state =
280 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
281 if (new_spell_state != spell_state)
282 // Spell checker state changed here.
285 Change const & change = par_.lookupChange(pos);
286 if (!change_running.isSimilarTo(change))
287 // Track change type or author has changed.
290 char_type c = par_.getChar(pos);
295 if (!isPrintableNonspace(c))
298 /* Because we do our own bidi, at this point the strings are
299 * already in visual order. However, Qt also applies its own
300 * bidi algorithm to strings that it paints to the screen.
301 * Therefore, if we were to paint Hebrew/Arabic words as a
302 * single string, the letters in the words would get reversed
303 * again. In order to avoid that, we don't collect Hebrew/
304 * Arabic characters, but rather paint them one at a time.
305 * See also http://thread.gmane.org/gmane.editors.lyx.devel/79740
310 /* FIXME: these checks are irrelevant, since 'arabic' and
311 * 'hebrew' alone are already going to trigger a break.
312 * However, this should not be removed completely, because
313 * if an alternative solution is found which allows grouping
314 * of arabic and hebrew characters, then these breaks may have
317 if (arabic && Encodings::isArabicComposeChar(c))
320 if (hebrew && Encodings::isHebrewComposeChar(c))
324 // FIXME: Why only round brackets and why the difference to
325 // Hebrew? See also Paragraph::getUChar
331 c = par_.transformChar(c, pos);
332 /* see comment in hebrew, explaining why we break */
340 docstring s(&str[0], str.size());
343 s.replace(0,1,from_ascii(" "));
345 if (!selection && !change_running.changed()) {
346 x_ += pi_.pain.text(int(x_), yo_, s, font);
350 FontInfo copy = font;
351 if (change_running.changed())
352 copy.setPaintColor(change_running.color());
354 copy.setPaintColor(Color_selectiontext);
356 x_ += pi_.pain.text(int(x_), yo_, s, copy);
360 void RowPainter::paintSeparator(double orig_x, double width,
361 FontInfo const & font)
363 pi_.pain.textDecoration(font, int(orig_x), yo_, int(width));
368 void RowPainter::paintForeignMark(double orig_x, Language const * lang,
371 if (!lyxrc.mark_foreign_language)
373 if (lang == latex_language)
375 if (lang == pi_.base.bv->buffer().params().language)
378 int const y = yo_ + solid_line_offset_ + desc + int(solid_line_thickness_/2);
379 pi_.pain.line(int(orig_x), y, int(x_), y, Color_language,
380 Painter::line_solid, solid_line_thickness_);
384 void RowPainter::paintMisspelledMark(double orig_x, bool changed)
386 // if changed the misspelled marker gets placed slightly lower than normal
387 // to avoid drawing at the same vertical offset
388 float const y = yo_ + solid_line_offset_ + solid_line_thickness_
389 + (changed ? solid_line_thickness_ + 1 : 0)
390 + dotted_line_offset_;
391 pi_.pain.line(int(orig_x), int(y), int(x_), int(y), Color_error,
392 Painter::line_onoffdash, dotted_line_thickness_);
396 void RowPainter::paintFromPos(pos_type & vpos, bool changed)
398 pos_type const pos = bidi_.vis2log(vpos);
399 Font const orig_font = text_metrics_.displayFont(pit_, pos);
400 double const orig_x = x_;
402 // usual characters, no insets
403 char_type const c = par_.getChar(pos);
405 // special case languages
406 string const & lang = orig_font.language()->lang();
407 bool const hebrew = lang == "hebrew";
408 bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi" ||
412 bool const misspelled =
413 lyxrc.spellcheck_continuously && par_.isMisspelled(pos);
415 // draw as many chars as we can
416 if ((!hebrew && !arabic)
417 || (hebrew && !Encodings::isHebrewComposeChar(c))
418 || (arabic && !Encodings::isArabicComposeChar(c))) {
419 paintChars(vpos, orig_font.fontInfo(), hebrew, arabic);
421 paintHebrewComposeChar(vpos, orig_font.fontInfo());
423 paintArabicComposeChar(vpos, orig_font.fontInfo());
426 paintForeignMark(orig_x, orig_font.language());
428 if (lyxrc.spellcheck_continuously && misspelled) {
429 // check for cursor position
430 // don't draw misspelled marker for words at cursor position
431 // we don't want to disturb the process of text editing
432 BufferView const * bv = pi_.base.bv;
433 DocIterator const nw = bv->cursor().newWord();
434 bool new_word = false;
435 if (!nw.empty() && par_.id() == nw.paragraph().id()) {
436 pos_type cpos = nw.pos();
437 if (cpos > 0 && cpos == par_.size() && !par_.isWordSeparator(cpos-1))
439 else if (cpos > 0 && par_.isWordSeparator(cpos))
441 new_word = par_.isSameSpellRange(pos, cpos) ;
444 paintMisspelledMark(orig_x, changed);
449 void RowPainter::paintChangeBar()
451 pos_type const start = row_.pos();
452 pos_type end = row_.endpos();
454 if (par_.size() == end) {
455 // this is the last row of the paragraph;
456 // thus, we must also consider the imaginary end-of-par character
460 if (start == end || !par_.isChanged(start, end))
463 int const height = text_metrics_.isLastRow(pit_, row_)
467 pi_.pain.fillRectangle(5, yo_ - row_.ascent(), 3, height, Color_changebar);
471 void RowPainter::paintAppendix()
473 // only draw the appendix frame once (for the main text)
474 if (!par_.params().appendix() || !text_.isMainText())
477 int y = yo_ - row_.ascent();
479 if (par_.params().startOfAppendix())
480 y += 2 * defaultRowHeight();
482 pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
483 pi_.pain.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color_appendix);
487 void RowPainter::paintDepthBar()
489 depth_type const depth = par_.getDepth();
494 depth_type prev_depth = 0;
495 if (!text_metrics_.isFirstRow(pit_, row_)) {
496 pit_type pit2 = pit_;
499 prev_depth = pars_[pit2].getDepth();
502 depth_type next_depth = 0;
503 if (!text_metrics_.isLastRow(pit_, row_)) {
504 pit_type pit2 = pit_;
505 if (row_.endpos() >= pars_[pit2].size())
507 next_depth = pars_[pit2].getDepth();
510 for (depth_type i = 1; i <= depth; ++i) {
511 int const w = nestMargin() / 5;
512 int x = int(xo_) + w * i;
513 // only consider the changebar space if we're drawing outermost text
514 if (text_.isMainText())
515 x += changebarMargin();
517 int const starty = yo_ - row_.ascent();
518 int const h = row_.height() - 1 - (i - next_depth - 1) * 3;
520 pi_.pain.line(x, starty, x, starty + h, Color_depthbar);
523 pi_.pain.fillRectangle(x, starty, w, 2, Color_depthbar);
525 pi_.pain.fillRectangle(x, starty + h, w, 2, Color_depthbar);
530 int RowPainter::paintAppendixStart(int y)
532 FontInfo pb_font = sane_font;
533 pb_font.setColor(Color_appendix);
540 docstring const label = _("Appendix");
541 theFontMetrics(pb_font).rectText(label, w, a, d);
543 int const text_start = int(xo_ + (width_ - w) / 2);
544 int const text_end = text_start + w;
546 pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
548 pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
549 pi_.pain.line(text_end, y, int(xo_ + width_ - 2), y, Color_appendix);
551 return 3 * defaultRowHeight();
555 void RowPainter::paintFirst()
557 BufferParams const & bparams = pi_.base.bv->buffer().params();
558 Layout const & layout = par_.layout();
562 // start of appendix?
563 if (par_.params().startOfAppendix())
564 y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
566 if (bparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
568 if (layout.latextype == LATEX_PARAGRAPH
569 && !par_.getDepth()) {
570 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
572 Layout const & playout = pars_[pit_ - 1].layout();
573 if (playout.latextype == LATEX_PARAGRAPH
574 && !pars_[pit_ - 1].getDepth()) {
575 // is it right to use defskip here, too? (AS)
576 y_top += bparams.getDefSkip().inPixels(*pi_.base.bv);
581 bool const is_first =
582 text_.isFirstInSequence(pit_) || !layout.isParagraphGroup();
583 //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << endl;
585 if (layout.labelIsInline()
586 && (layout.labeltype != LABEL_STATIC || is_first)) {
588 } else if (is_first && layout.labelIsAbove()) {
589 paintTopLevelLabel();
594 void RowPainter::paintLabel()
596 docstring const str = par_.labelString();
600 bool const is_rtl = text_.isRTL(par_);
601 Layout const & layout = par_.layout();
602 FontInfo const font = labelFont();
603 FontMetrics const & fm = theFontMetrics(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 void RowPainter::paintTopLevelLabel()
620 BufferParams const & bparams = pi_.base.bv->buffer().params();
621 bool const is_rtl = text_.isRTL(par_);
622 ParagraphParameters const & pparams = par_.params();
623 Layout const & layout = par_.layout();
624 FontInfo const font = labelFont();
625 docstring const str = par_.labelString();
629 double spacing_val = 1.0;
630 if (!pparams.spacing().isDefault())
631 spacing_val = pparams.spacing().getValue();
633 spacing_val = bparams.spacing().getValue();
635 FontMetrics const & fm = theFontMetrics(font);
637 int const labeladdon = int(fm.maxHeight()
638 * layout.spacing.getValue() * spacing_val);
641 int(fm.maxDescent() * layout.spacing.getValue() * spacing_val
642 + (layout.labelbottomsep * defaultRowHeight()));
645 if (layout.labeltype == LABEL_CENTERED) {
648 x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
649 x -= fm.width(str) / 2;
651 x = width_ - leftMargin() - fm.width(str);
653 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(text_.layoutFont(pit_));
753 f.setColor(Color_paragraphmarker);
754 pi_.pain.text(int(x_), yo_, s, f);
755 x_ += theFontMetrics(f).width(s);
762 void RowPainter::paintOnlyInsets()
764 CoordCache const & cache = pi_.base.bv->coordCache();
765 pos_type const end = row_.endpos();
766 for (pos_type pos = row_.pos(); pos != end; ++pos) {
767 // If outer row has changed, nested insets are repaint completely.
768 Inset const * inset = par_.getInset(pos);
769 bool const nested_inset = inset &&
770 ((inset->asInsetMath() &&
771 !inset->asInsetMath()->asMacroTemplate())
772 || inset->asInsetText()
773 || inset->asInsetTabular());
776 if (x_ > pi_.base.bv->workWidth()
777 || !cache.getInsets().has(inset))
779 x_ = cache.getInsets().x(inset);
781 bool const pi_selected = pi_.selected;
782 Cursor const & cur = pi_.base.bv->cursor();
783 if (cur.selection() && cur.text() == &text_
784 && cur.normalAnchor().text() == &text_)
785 pi_.selected = row_.sel_beg <= pos && row_.sel_end > pos;
786 paintInset(inset, pos);
787 pi_.selected = pi_selected;
792 void RowPainter::paintText()
794 pos_type const end = row_.endpos();
795 // Spaces at logical line breaks in bidi text must be skipped during
796 // painting. However, they may appear visually in the middle
797 // of a row; they must be skipped, wherever they are...
798 // * logically "abc_[HEBREW_\nHEBREW]"
799 // * visually "abc_[_WERBEH\nWERBEH]"
800 pos_type skipped_sep_vpos = -1;
801 pos_type body_pos = par_.beginOfBody();
803 (body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
807 Layout const & layout = par_.layout();
809 Change change_running;
810 int change_last_x = 0;
812 // check for possible inline completion
813 DocIterator const & inlineCompletionPos = pi_.base.bv->inlineCompletionPos();
814 pos_type inlineCompletionVPos = -1;
815 if (inlineCompletionPos.inTexted()
816 && inlineCompletionPos.text() == &text_
817 && inlineCompletionPos.pit() == pit_
818 && inlineCompletionPos.pos() - 1 >= row_.pos()
819 && inlineCompletionPos.pos() - 1 < row_.endpos()) {
820 // draw logically behind the previous character
821 inlineCompletionVPos = bidi_.log2vis(inlineCompletionPos.pos() - 1);
824 // Use font span to speed things up, see below
828 // If the last logical character is a separator, don't paint it, unless
829 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
830 if (end > 0 && end < par_.size() && par_.isSeparator(end - 1))
831 skipped_sep_vpos = bidi_.log2vis(end - 1);
833 for (pos_type vpos = row_.pos(); vpos < end; ) {
834 if (x_ > pi_.base.bv->workWidth())
837 // Skip the separator at the logical end of the row
838 if (vpos == skipped_sep_vpos) {
843 pos_type const pos = bidi_.vis2log(vpos);
845 if (pos >= par_.size()) {
850 // Use font span to speed things up, see above
851 if (vpos < font_span.first || vpos > font_span.last) {
852 font_span = par_.fontSpan(vpos);
853 font = text_metrics_.displayFont(pit_, vpos);
855 // split font span if inline completion is inside
856 if (font_span.first <= inlineCompletionVPos
857 && font_span.last > inlineCompletionVPos)
858 font_span.last = inlineCompletionVPos;
861 const int width_pos = pm_.singleWidth(pos, font);
863 if (x_ + width_pos < 0) {
868 Change const & change = par_.lookupChange(pos);
869 if (change.changed() && !change_running.changed()) {
870 change_running = change;
871 change_last_x = int(x_);
874 Inset const * inset = par_.getInset(pos);
875 bool const highly_editable_inset = inset
876 && inset->editable();
878 // If we reach the end of a change or if the author changes, paint it.
879 // We also don't paint across things like tables
880 if (change_running.changed() && (highly_editable_inset
881 || !change.changed() || !change_running.isSimilarTo(change))) {
882 // Calculate 1/3 height of the buffer's default font
883 FontMetrics const & fm
884 = theFontMetrics(pi_.base.bv->buffer().params().getFont());
885 float const y_bar = change_running.deleted() ?
886 yo_ - fm.maxAscent() / 3 : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
887 pi_.pain.line(change_last_x, int(y_bar), int(x_), int(y_bar),
888 change_running.color(), Painter::line_solid, solid_line_thickness_);
890 // Change might continue with a different author or type
891 if (change.changed() && !highly_editable_inset) {
892 change_running = change;
893 change_last_x = int(x_);
895 change_running.setUnchanged();
898 if (body_pos > 0 && pos == body_pos - 1) {
899 int const lwidth = theFontMetrics(labelFont())
900 .width(layout.labelsep);
902 x_ += row_.label_hfill + lwidth - width_pos;
905 // Is the inline completion in front of character?
906 if (font.isRightToLeft() && vpos == inlineCompletionVPos)
907 paintInlineCompletion(font);
909 if (par_.isSeparator(pos)) {
910 Font const orig_font = text_metrics_.displayFont(pit_, pos);
911 double const orig_x = x_;
912 double separator_width = width_pos;
914 separator_width += row_.separator;
915 paintSeparator(orig_x, separator_width, orig_font.fontInfo());
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 float const y_bar = change_running.deleted() ?
947 yo_ - fm.maxAscent() / 3 : yo_ + 2 * solid_line_offset_ + solid_line_thickness_;
948 pi_.pain.line(change_last_x, int(y_bar), int(x_), int(y_bar),
949 change_running.color(), Painter::line_solid, 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;
1076 pi_.pain.text(int(x_), yo_, s1, f);
1077 x_ += theFontMetrics(font).width(s1);
1082 pi_.pain.text(int(x_), yo_, s2, f);
1083 x_ += theFontMetrics(font).width(s2);