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.
14 #include "rowpainter.h"
17 #include "CoordCache.h"
20 #include "BufferParams.h"
21 #include "BufferView.h"
28 #include "MetricsInfo.h"
29 #include "Paragraph.h"
30 #include "ParagraphMetrics.h"
31 #include "paragraph_funcs.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 "support/textutils.h"
43 #include <boost/crc.hpp>
48 using frontend::Painter;
49 using frontend::FontMetrics;
58 /// Flag: do a full redraw of inside text of inset
59 /// Working variable indicating a full screen refresh
63 * A class used for painting an individual row of text.
67 /// initialise and run painter
68 RowPainter(PainterInfo & pi, Text const & text,
69 pit_type pit, Row const & row, int x, int y);
71 // paint various parts
74 void paintChangeBar();
78 int maxWidth() { return max_width_; }
81 void paintForeignMark(double orig_x, Font const & font, int desc = 0);
82 void paintHebrewComposeChar(pos_type & vpos, Font const & font);
83 void paintArabicComposeChar(pos_type & vpos, Font const & font);
84 void paintChars(pos_type & vpos, Font const & font,
85 bool hebrew, bool arabic);
86 int paintAppendixStart(int y);
87 void paintFromPos(pos_type & vpos);
88 void paintInset(pos_type const pos, Font const & font);
90 /// return left margin
91 int leftMargin() const;
93 /// return the label font for this row
94 Font const getLabelFont() const;
96 /// bufferview to paint on
104 TextMetrics & text_metrics_;
105 ParagraphList const & pars_;
112 Paragraph const & par_;
113 ParagraphMetrics const & pm_;
116 /// is row erased? (change tracking)
121 int const yo_; // current baseline
130 RowPainter::RowPainter(PainterInfo & pi,
131 Text const & text, pit_type pit, Row const & row, int x, int y)
132 : bv_(*pi.base.bv), pain_(pi.pain), text_(text),
133 text_metrics_(pi.base.bv->textMetrics(&text)),
134 pars_(text.paragraphs()),
135 row_(row), pit_(pit), par_(text.paragraphs()[pit]),
136 pm_(text_metrics_.parMetrics(pit)),
137 max_width_(bv_.workWidth()),
139 xo_(x), yo_(y), width_(text_metrics_.width())
141 RowMetrics m = text_metrics_.computeRowMetrics(pit_, row_);
144 //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
147 separator_ = m.separator;
149 label_hfill_ = m.label_hfill;
151 BOOST_ASSERT(pit >= 0);
152 BOOST_ASSERT(pit < int(text.paragraphs().size()));
156 Font const RowPainter::getLabelFont() const
158 return text_.getLabelFont(*bv_.buffer(), par_);
162 int RowPainter::leftMargin() const
164 return text_.leftMargin(*bv_.buffer(), max_width_, pit_, row_.pos());
168 // If you want to debug inset metrics uncomment the following line:
169 // #define DEBUG_METRICS
170 // This draws green lines around each inset.
173 void RowPainter::paintInset(pos_type const pos, Font const & font)
175 Inset const * inset = par_.getInset(pos);
177 PainterInfo pi(const_cast<BufferView *>(&bv_), pain_);
178 // FIXME: We should always use font, see documentation of
179 // noFontChange() in Inset.h.
180 pi.base.font = inset->noFontChange() ?
181 bv_.buffer()->params().getFont() :
183 pi.ltr_pos = (text_.bidi.level(pos) % 2 == 0);
184 pi.erased_ = erased_ || par_.isDeleted(pos);
186 int const x1 = int(x_);
188 bv_.coordCache().insets().add(inset, int(x_), yo_);
189 InsetText const * const in = inset->asTextInset();
190 // non-wide insets are painted completely. Recursive
191 bool tmp = refreshInside;
192 if (!in || !in->wide()) {
193 refreshInside = true;
194 LYXERR(Debug::PAINTING) << endl << "Paint inset fully" << endl;
197 inset->drawSelection(pi, int(x_), yo_);
198 inset->draw(pi, int(x_), yo_);
200 x_ += inset->width();
203 BOOST_ASSERT(max_witdh_ > 0);
204 int right_margin = text_metrics_.rightMargin(pm_);
205 int const w = max_witdh_ - leftMargin() - right_margin;
206 MetricsInfo mi(&bv_, font, w);
207 inset->metrics(mi, dim);
208 if (inset->width() > dim.wid)
209 lyxerr << "Error: inset " << to_ascii(inset->getInsetName())
210 << " draw width " << inset->width()
211 << "> metrics width " << dim.wid << "." << std::endl;
212 if (inset->ascent() > dim.asc)
213 lyxerr << "Error: inset " << to_ascii(inset->getInsetName())
214 << " draw ascent " << inset->ascent()
215 << "> metrics ascent " << dim.asc << "." << std::endl;
216 if (inset->descent() > dim.des)
217 lyxerr << "Error: inset " << to_ascii(inset->getInsetName())
218 << " draw ascent " << inset->descent()
219 << "> metrics descent " << dim.des << "." << std::endl;
220 BOOST_ASSERT(inset->width() <= dim.wid);
221 BOOST_ASSERT(inset->ascent() <= dim.asc);
222 BOOST_ASSERT(inset->descent() <= dim.des);
223 int const x2 = x1 + dim.wid;
224 int const y1 = yo_ + dim.des;
225 int const y2 = yo_ - dim.asc;
226 pi.pain.line(x1, y1, x1, y2, Color::green);
227 pi.pain.line(x1, y1, x2, y1, Color::green);
228 pi.pain.line(x2, y1, x2, y2, Color::green);
229 pi.pain.line(x1, y2, x2, y2, Color::green);
234 void RowPainter::paintHebrewComposeChar(pos_type & vpos, Font const & font)
236 pos_type pos = text_.bidi.vis2log(vpos);
241 char_type c = par_.getChar(pos);
245 int const width = theFontMetrics(font).width(c);
248 for (pos_type i = pos - 1; i >= 0; --i) {
250 if (!Encodings::isComposeChar_hebrew(c)) {
251 if (isPrintableNonspace(c)) {
252 int const width2 = text_.singleWidth(par_, i, c,
253 text_.getFont(*bv_.buffer(), par_, i));
254 dx = (c == 0x05e8 || // resh
255 c == 0x05d3) // dalet
257 : (width2 - width) / 2;
264 pain_.text(int(x_) + dx, yo_, str, font);
268 void RowPainter::paintArabicComposeChar(pos_type & vpos, Font const & font)
270 pos_type pos = text_.bidi.vis2log(vpos);
274 char_type c = par_.getChar(pos);
275 c = par_.transformChar(c, pos);
279 int const width = theFontMetrics(font).width(c);
282 for (pos_type i = pos - 1; i >= 0; --i) {
284 if (!Encodings::isComposeChar_arabic(c)) {
285 if (isPrintableNonspace(c)) {
286 int const width2 = text_.singleWidth(par_, i, c,
287 text_.getFont(*bv_.buffer(), par_, i));
288 dx = (width2 - width) / 2;
294 pain_.text(int(x_) + dx, yo_, str, font);
298 void RowPainter::paintChars(pos_type & vpos, Font const & font,
299 bool hebrew, bool arabic)
301 // This method takes up 70% of time when typing
302 pos_type pos = text_.bidi.vis2log(vpos);
303 pos_type const end = row_.endpos();
304 FontSpan const font_span = par_.fontSpan(pos);
305 Change::Type const prev_change = par_.lookupChange(pos).type;
308 std::vector<char_type> str;
310 str.push_back(par_.getChar(pos));
313 char_type c = str[0];
318 str[0] = par_.transformChar(c, pos);
321 // collect as much similar chars as we can
322 for (++vpos ; vpos < end ; ++vpos) {
323 pos = text_.bidi.vis2log(vpos);
324 if (pos < font_span.first || pos > font_span.last)
327 if (prev_change != par_.lookupChange(pos).type)
330 char_type c = par_.getChar(pos);
332 if (!isPrintableNonspace(c))
335 /* Because we do our own bidi, at this point the strings are
336 * already in visual order. However, Qt also applies its own
337 * bidi algorithm to strings that it paints to the screen.
338 * Therefore, if we were to paint Hebrew/Arabic words as a
339 * single string, the letters in the words would get reversed
340 * again. In order to avoid that, we don't collect Hebrew/
341 * Arabic characters, but rather paint them one at a time.
342 * See also http://thread.gmane.org/gmane.editors.lyx.devel/79740
347 /* FIXME: these checks are irrelevant, since 'arabic' and
348 * 'hebrew' alone are already going to trigger a break.
349 * However, this should not be removed completely, because
350 * if an alternative solution is found which allows grouping
351 * of arabic and hebrew characters, then these breaks may have
354 if (arabic && Encodings::isComposeChar_arabic(c))
357 if (hebrew && Encodings::isComposeChar_hebrew(c))
366 c = par_.transformChar(c, pos);
367 /* see comment in hebrew, explaining why we break */
374 docstring s(&str[0], str.size());
376 if (prev_change != Change::UNCHANGED) {
378 if (prev_change == Change::DELETED) {
379 copy.setColor(Color::deletedtext);
380 } else if (prev_change == Change::INSERTED) {
381 copy.setColor(Color::addedtext);
383 x_ += pain_.text(int(x_), yo_, s, copy);
385 x_ += pain_.text(int(x_), yo_, s, font);
390 void RowPainter::paintForeignMark(double orig_x, Font const & font, int desc)
392 if (!lyxrc.mark_foreign_language)
394 if (font.language() == latex_language)
396 if (font.language() == bv_.buffer()->params().language)
399 int const y = yo_ + 1 + desc;
400 pain_.line(int(orig_x), y, int(x_), y, Color::language);
404 void RowPainter::paintFromPos(pos_type & vpos)
406 pos_type const pos = text_.bidi.vis2log(vpos);
407 Font orig_font = text_.getFont(*bv_.buffer(), par_, pos);
409 double const orig_x = x_;
411 if (par_.isInset(pos)) {
412 paintInset(pos, orig_font);
414 paintForeignMark(orig_x, orig_font,
415 par_.getInset(pos)->descent());
419 // usual characters, no insets
420 char_type const c = par_.getChar(pos);
422 // special case languages
423 std::string const & lang = orig_font.language()->lang();
424 bool const hebrew = lang == "hebrew";
425 bool const arabic = lang == "arabic" || lang == "farsi";
427 // draw as many chars as we can
428 if ((!hebrew && !arabic)
429 || (hebrew && !Encodings::isComposeChar_hebrew(c))
430 || (arabic && !Encodings::isComposeChar_arabic(c))) {
431 paintChars(vpos, orig_font, hebrew, arabic);
433 paintHebrewComposeChar(vpos, orig_font);
435 paintArabicComposeChar(vpos, orig_font);
438 paintForeignMark(orig_x, orig_font);
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_.isLastRow(pit_, row_)
460 pain_.fillRectangle(5, yo_ - row_.ascent(), 3, height, Color::changebar);
464 void RowPainter::paintAppendix()
466 if (!par_.params().appendix())
469 int y = yo_ - row_.ascent();
471 if (par_.params().startOfAppendix())
472 y += 2 * defaultRowHeight();
474 pain_.line(1, y, 1, yo_ + row_.height(), Color::appendix);
475 pain_.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color::appendix);
479 void RowPainter::paintDepthBar()
481 depth_type const depth = par_.getDepth();
486 depth_type prev_depth = 0;
487 if (!text_.isFirstRow(pit_, row_)) {
488 pit_type pit2 = pit_;
491 prev_depth = pars_[pit2].getDepth();
494 depth_type next_depth = 0;
495 if (!text_.isLastRow(pit_, row_)) {
496 pit_type pit2 = pit_;
497 if (row_.endpos() >= pars_[pit2].size())
499 next_depth = pars_[pit2].getDepth();
502 for (depth_type i = 1; i <= depth; ++i) {
503 int const w = nestMargin() / 5;
504 int x = int(xo_) + w * i;
505 // only consider the changebar space if we're drawing outermost text
506 if (text_.isMainText(*bv_.buffer()))
507 x += changebarMargin();
509 int const starty = yo_ - row_.ascent();
510 int const h = row_.height() - 1 - (i - next_depth - 1) * 3;
512 pain_.line(x, starty, x, starty + h, Color::depthbar);
515 pain_.fillRectangle(x, starty, w, 2, Color::depthbar);
517 pain_.fillRectangle(x, starty + h, w, 2, Color::depthbar);
522 int RowPainter::paintAppendixStart(int y)
525 pb_font.setColor(Color::appendix);
532 docstring const label = _("Appendix");
533 theFontMetrics(pb_font).rectText(label, w, a, d);
535 int const text_start = int(xo_ + (width_ - w) / 2);
536 int const text_end = text_start + w;
538 pain_.rectText(text_start, y + d, label, pb_font, Color::none, Color::none);
540 pain_.line(int(xo_ + 1), y, text_start, y, Color::appendix);
541 pain_.line(text_end, y, int(xo_ + width_ - 2), y, Color::appendix);
543 return 3 * defaultRowHeight();
547 void RowPainter::paintFirst()
549 ParagraphParameters const & parparams = par_.params();
553 // start of appendix?
554 if (parparams.startOfAppendix())
555 y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
557 Buffer const & buffer = *bv_.buffer();
559 Layout_ptr const & layout = par_.layout();
561 if (buffer.params().paragraph_separation == BufferParams::PARSEP_SKIP) {
563 if (layout->latextype == LATEX_PARAGRAPH
564 && !par_.getDepth()) {
565 y_top += buffer.params().getDefSkip().inPixels(bv_);
567 Layout_ptr const & playout = pars_[pit_ - 1].layout();
568 if (playout->latextype == LATEX_PARAGRAPH
569 && !pars_[pit_ - 1].getDepth()) {
570 // is it right to use defskip here, too? (AS)
571 y_top += buffer.params().getDefSkip().inPixels(bv_);
577 bool const is_rtl = text_.isRTL(buffer, par_);
578 bool const is_seq = isFirstInSequence(pit_, text_.paragraphs());
579 //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << std::endl;
581 // should we print a label?
582 if (layout->labeltype >= LABEL_STATIC
583 && (layout->labeltype != LABEL_STATIC
584 || layout->latextype != LATEX_ENVIRONMENT
587 Font const font = getLabelFont();
588 FontMetrics const & fm = theFontMetrics(font);
590 docstring const str = par_.getLabelstring();
594 // this is special code for the chapter layout. This is
595 // printed in an extra row and has a pagebreak at
597 if (layout->counter == "chapter") {
598 double spacing_val = 1.0;
599 if (!parparams.spacing().isDefault()) {
600 spacing_val = parparams.spacing().getValue();
602 spacing_val = buffer.params().spacing().getValue();
605 int const labeladdon = int(fm.maxHeight() * layout->spacing.getValue() * spacing_val);
607 int const maxdesc = int(fm.maxDescent() * layout->spacing.getValue() * spacing_val)
608 + int(layout->parsep) * defaultRowHeight();
611 x = width_ - leftMargin() -
615 pain_.text(int(x), yo_ - maxdesc - labeladdon, str, font);
618 docstring lab = from_utf8(layout->labelsep);
620 x = width_ - leftMargin()
623 x = x_ - fm.width(lab)
627 pain_.text(int(x), yo_, str, font);
631 // the labels at the top of an environment.
632 // More or less for bibliography
634 (layout->labeltype == LABEL_TOP_ENVIRONMENT ||
635 layout->labeltype == LABEL_BIBLIO ||
636 layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
637 Font font = getLabelFont();
638 if (!par_.getLabelstring().empty()) {
639 docstring const str = par_.getLabelstring();
640 double spacing_val = 1.0;
641 if (!parparams.spacing().isDefault())
642 spacing_val = parparams.spacing().getValue();
644 spacing_val = buffer.params().spacing().getValue();
646 FontMetrics const & fm = theFontMetrics(font);
648 int const labeladdon = int(fm.maxHeight()
649 * layout->spacing.getValue() * spacing_val);
652 int(fm.maxDescent() * layout->spacing.getValue() * spacing_val
653 + (layout->labelbottomsep * defaultRowHeight()));
656 if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
659 x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
660 x -= fm.width(str) / 2;
662 x = width_ - leftMargin() - fm.width(str);
664 pain_.text(int(x), yo_ - maxdesc - labeladdon, str, font);
670 void RowPainter::paintLast()
672 bool const is_rtl = text_.isRTL(*bv_.buffer(), par_);
673 int const endlabel = getEndLabel(pit_, text_.paragraphs());
675 // paint imaginary end-of-paragraph character
677 if (par_.isInserted(par_.size()) || par_.isDeleted(par_.size())) {
678 FontMetrics const & fm = theFontMetrics(bv_.buffer()->params().getFont());
679 int const length = fm.maxAscent() / 2;
680 Color::color col = par_.isInserted(par_.size()) ? Color::addedtext : Color::deletedtext;
682 pain_.line(int(x_) + 1, yo_ + 2, int(x_) + 1, yo_ + 2 - length, col,
683 Painter::line_solid, Painter::line_thick);
684 pain_.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1, yo_ + 2, col,
685 Painter::line_solid, Painter::line_thick);
692 case END_LABEL_FILLED_BOX: {
693 Font const font = getLabelFont();
694 FontMetrics const & fm = theFontMetrics(font);
695 int const size = int(0.75 * fm.maxAscent());
696 int const y = yo_ - size;
697 int x = is_rtl ? nestMargin() + changebarMargin() : width_ - size;
699 if (width_ - int(row_.width()) <= size)
700 x += (size - width_ + row_.width() + 1) * (is_rtl ? -1 : 1);
702 if (endlabel == END_LABEL_BOX)
703 pain_.rectangle(x, y, size, size, Color::eolmarker);
705 pain_.fillRectangle(x, y, size, size, Color::eolmarker);
709 case END_LABEL_STATIC: {
710 Font font = getLabelFont();
711 FontMetrics const & fm = theFontMetrics(font);
712 docstring const & str = par_.layout()->endlabelstring();
713 double const x = is_rtl ?
715 : - text_metrics_.rightMargin(pm_) - row_.width();
716 pain_.text(int(x), yo_, str, font);
720 case END_LABEL_NO_LABEL:
726 void RowPainter::paintText()
728 pos_type const end = row_.endpos();
729 pos_type body_pos = par_.beginOfBody();
731 (body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
735 Layout_ptr const & layout = par_.layout();
737 bool running_strikeout = false;
738 bool is_struckout = false;
739 int last_strikeout_x = 0;
741 // Use font span to speed things up, see below
744 Buffer const & buffer = *bv_.buffer();
746 for (pos_type vpos = row_.pos(); vpos < end; ) {
747 if (x_ > bv_.workWidth())
750 pos_type const pos = text_.bidi.vis2log(vpos);
752 if (pos >= par_.size()) {
757 // Use font span to speed things up, see above
758 if (vpos < font_span.first || vpos > font_span.last) {
759 font_span = par_.fontSpan(vpos);
760 font = text_.getFont(buffer, par_, vpos);
763 const int width_pos =
764 text_.singleWidth(par_, pos, par_.getChar(pos), font);
766 if (x_ + width_pos < 0) {
772 is_struckout = par_.isDeleted(pos);
774 if (is_struckout && !running_strikeout) {
775 running_strikeout = true;
776 last_strikeout_x = int(x_);
779 bool const highly_editable_inset = par_.isInset(pos)
780 && isHighlyEditableInset(par_.getInset(pos));
782 // If we reach the end of a struck out range, paint it.
783 // We also don't paint across things like tables
784 if (running_strikeout && (highly_editable_inset || !is_struckout)) {
785 // Calculate 1/3 height of the buffer's default font
786 FontMetrics const & fm
787 = theFontMetrics(bv_.buffer()->params().getFont());
788 int const middle = yo_ - fm.maxAscent() / 3;
789 pain_.line(last_strikeout_x, middle, int(x_), middle,
790 Color::deletedtext, Painter::line_solid, Painter::line_thin);
791 running_strikeout = false;
794 if (body_pos > 0 && pos == body_pos - 1) {
796 int const lwidth = theFontMetrics(getLabelFont())
797 .width(from_utf8(layout->labelsep));
799 x_ += label_hfill_ + lwidth - width_pos;
802 if (par_.isHfill(pos)) {
806 int const y1 = y0 - defaultRowHeight() / 2;
808 pain_.line(int(x_), y1, int(x_), y0, Color::added_space);
810 if (par_.hfillExpansion(row_, pos)) {
811 int const y2 = (y0 + y1) / 2;
813 if (pos >= body_pos) {
814 pain_.line(int(x_), y2, int(x_ + hfill_), y2,
816 Painter::line_onoffdash);
819 pain_.line(int(x_), y2, int(x_ + label_hfill_), y2,
821 Painter::line_onoffdash);
824 pain_.line(int(x_), y1, int(x_), y0, Color::added_space);
828 } else if (par_.isSeparator(pos)) {
829 Font orig_font = text_.getFont(*bv_.buffer(), par_, pos);
830 double const orig_x = x_;
835 paintForeignMark(orig_x, orig_font);
841 // if we reach the end of a struck out range, paint it
842 if (running_strikeout) {
843 // calculate 1/3 height of the buffer's default font
844 FontMetrics const & fm
845 = theFontMetrics(bv_.buffer()->params().getFont());
846 int const middle = yo_ - fm.maxAscent() / 3;
847 pain_.line(last_strikeout_x, middle, int(x_), middle,
848 Color::deletedtext, Painter::line_solid, Painter::line_thin);
849 running_strikeout = false;
854 bool CursorOnRow(PainterInfo & pi, pit_type const pit,
855 RowList::const_iterator rit, Text const & text)
857 // Is there a cursor on this row (or inside inset on row)
858 Cursor & cur = pi.base.bv->cursor();
859 for (size_type d = 0; d < cur.depth(); ++d) {
860 CursorSlice const & sl = cur[d];
861 if (sl.text() == &text
863 && sl.pos() >= rit->pos()
864 && sl.pos() <= rit->endpos())
871 bool innerCursorOnRow(PainterInfo & pi, pit_type pit,
872 RowList::const_iterator rit, Text const & text)
874 // Is there a cursor inside an inset on this row, and is this inset
875 // the only "character" on this row
876 Cursor & cur = pi.base.bv->cursor();
877 if (rit->pos() + 1 != rit->endpos())
879 for (size_type d = 0; d < cur.depth(); d++) {
880 CursorSlice const & sl = cur[d];
881 if (sl.text() == &text
883 && sl.pos() == rit->pos())
884 return d < cur.depth() - 1;
890 // FIXME: once wide() is obsolete, remove this as well!
891 bool inNarrowInset(PainterInfo & pi)
893 // check whether the current inset is nested in a non-wide inset
894 Cursor & cur = pi.base.bv->cursor();
895 for (int i = cur.depth() - 1; --i >= 0; ) {
896 Inset * const in = &cur[i].inset();
899 const_cast<InsetText *>(in->asTextInset());
909 (PainterInfo & pi, Text const & text, pit_type pit, int x, int y,
912 // lyxerr << " paintPar: pit: " << pit << " at y: " << y << endl;
913 int const ww = pi.base.bv->workHeight();
915 pi.base.bv->coordCache().parPos()[&text][pit] = Point(x, y);
917 Paragraph const & par = text.paragraphs()[pit];
918 ParagraphMetrics const & pm = pi.base.bv->parMetrics(&text, pit);
919 if (pm.rows().empty())
922 RowList::const_iterator const rb = pm.rows().begin();
923 RowList::const_iterator const re = pm.rows().end();
927 for (RowList::const_iterator rit = rb; rit != re; ++rit, ++rowno) {
929 // Allow setting of refreshInside for nested insets in
931 bool tmp = refreshInside;
933 // Row signature; has row changed since last paint?
934 bool row_has_changed = pm.rowChangeStatus()[rowno];
936 bool cursor_on_row = CursorOnRow(pi, pit, rit, text);
937 bool in_inset_alone_on_row =
938 innerCursorOnRow(pi, pit, rit, text);
940 (par.getAlign() == LYX_ALIGN_LEFT ||
941 par.getAlign() == LYX_ALIGN_BLOCK);
942 bool inNarrowIns = inNarrowInset(pi);
944 // If this is the only object on the row, we can make it wide
946 // FIXME: there is a const_cast here because paintPar() is not supposed
947 // to touch the paragraph contents. So either we move this "wide"
948 // property out of InsetText or we localize the feature to the painting
950 // JSpitzm: We should aim at removing wide() altogether while retaining
951 // typing speed within insets.
952 for (pos_type i = rit->pos() ; i != rit->endpos(); ++i) {
953 Inset const * const in = par.getInset(i);
955 InsetText * t = const_cast<InsetText *>(in->asTextInset());
957 t->setWide(in_inset_alone_on_row
963 // If selection is on, the current row signature differs
964 // from cache, or cursor is inside an inset _on this row_,
965 // then paint the row
966 if (repaintAll || row_has_changed || cursor_on_row) {
967 bool const inside = (y + rit->descent() >= 0
968 && y - rit->ascent() < ww);
969 // it is not needed to draw on screen if we are not inside.
970 pi.pain.setDrawingEnabled(inside);
971 RowPainter rp(pi, text, pit, *rit, x, y);
972 // Clear background of this row
973 // (if paragraph background was not cleared)
975 (!(in_inset_alone_on_row && leftEdgeFixed)
976 || row_has_changed)) {
977 pi.pain.fillRectangle(x, y - rit->ascent(),
978 rp.maxWidth(), rit->height(),
979 text.backgroundColor());
980 // If outer row has changed, force nested
981 // insets to repaint completely
983 refreshInside = true;
986 // Instrumentation for testing row cache (see also
988 if (lyxerr.debugging(Debug::PAINTING)) {
989 if (text.isMainText(*pi.base.bv->buffer()))
990 LYXERR(Debug::PAINTING) << "#";
992 LYXERR(Debug::PAINTING) << "[" <<
993 repaintAll << row_has_changed <<
994 cursor_on_row << "]";
1005 y += rit->descent();
1006 // Restore, see above
1007 refreshInside = tmp;
1009 // Re-enable screen drawing for future use of the painter.
1010 pi.pain.setDrawingEnabled(true);
1012 LYXERR(Debug::PAINTING) << "." << endl;
1018 void paintText(BufferView & bv,
1021 BOOST_ASSERT(bv.buffer());
1022 Buffer const & buffer = *bv.buffer();
1023 Text & text = buffer.text();
1024 bool const select = bv.cursor().selection();
1025 ViewMetricsInfo const & vi = bv.viewMetricsInfo();
1027 PainterInfo pi(const_cast<BufferView *>(&bv), pain);
1028 // Should the whole screen, including insets, be refreshed?
1029 // FIXME: We should also distinguish DecorationUpdate to avoid text
1030 // drawing if possible. This is not possible to do easily right now
1031 // because of the single backing pixmap.
1032 bool repaintAll = select || vi.update_strategy != SingleParUpdate;
1035 // Clear background (if not delegated to rows)
1036 pain.fillRectangle(0, vi.y1, bv.workWidth(), vi.y2 - vi.y1,
1037 text.backgroundColor());
1040 text.drawSelection(pi, 0, 0);
1045 for (pit_type pit = vi.p1; pit <= vi.p2; ++pit) {
1046 refreshInside = repaintAll;
1047 ParagraphMetrics const & pm = bv.parMetrics(&text, pit);
1049 paintPar(pi, text, pit, 0, yy, repaintAll);
1053 // and grey out above (should not happen later)
1054 // lyxerr << "par ascent: " << text.getPar(vi.p1).ascent() << endl;
1055 if (vi.y1 > 0 && vi.update_strategy != SingleParUpdate)
1056 pain.fillRectangle(0, 0, bv.workWidth(), vi.y1, Color::bottomarea);
1058 // and possibly grey out below
1059 // lyxerr << "par descent: " << text.getPar(vi.p1).ascent() << endl;
1060 if (vi.y2 < bv.workHeight() && vi.update_strategy != SingleParUpdate)
1061 pain.fillRectangle(0, vi.y2, bv.workWidth(), bv.workHeight() - vi.y2, Color::bottomarea);
1065 void paintTextInset(Text const & text, PainterInfo & pi, int x, int y)
1067 // lyxerr << " paintTextInset: y: " << y << endl;
1069 y -= pi.base.bv->parMetrics(&text, 0).ascent();
1070 // This flag cannot be set from within same inset:
1071 bool repaintAll = refreshInside;
1072 for (int pit = 0; pit < int(text.paragraphs().size()); ++pit) {
1073 ParagraphMetrics const & pmi
1074 = pi.base.bv->parMetrics(&text, pit);
1076 paintPar(pi, text, pit, x, y, repaintAll);