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, LyXText 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, LyXFont const & font, int desc = 0);
82 void paintHebrewComposeChar(pos_type & vpos, LyXFont const & font);
83 void paintArabicComposeChar(pos_type & vpos, LyXFont const & font);
84 void paintChars(pos_type & vpos, LyXFont 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, LyXFont const & font);
90 /// return left margin
91 int leftMargin() const;
93 /// return the label font for this row
94 LyXFont const getLabelFont() const;
96 /// bufferview to paint on
102 /// LyXText for the row
103 LyXText const & text_;
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 LyXText 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 LyXFont 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, LyXFont const & font)
175 InsetBase 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 insetbase.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 if (lyxerr.debugging(Debug::PAINTING)) {
195 lyxerr << endl << "Paint inset fully" << endl;
199 inset->drawSelection(pi, int(x_), yo_);
200 inset->draw(pi, int(x_), yo_);
202 x_ += inset->width();
205 BOOST_ASSERT(max_witdh_ > 0);
206 int right_margin = text_metrics_.rightMargin(pm_);
207 int const w = max_witdh_ - leftMargin() - right_margin;
208 MetricsInfo mi(&bv_, font, w);
209 inset->metrics(mi, dim);
210 if (inset->width() > dim.wid)
211 lyxerr << "Error: inset " << to_ascii(inset->getInsetName())
212 << " draw width " << inset->width()
213 << "> metrics width " << dim.wid << "." << std::endl;
214 if (inset->ascent() > dim.asc)
215 lyxerr << "Error: inset " << to_ascii(inset->getInsetName())
216 << " draw ascent " << inset->ascent()
217 << "> metrics ascent " << dim.asc << "." << std::endl;
218 if (inset->descent() > dim.des)
219 lyxerr << "Error: inset " << to_ascii(inset->getInsetName())
220 << " draw ascent " << inset->descent()
221 << "> metrics descent " << dim.des << "." << std::endl;
222 BOOST_ASSERT(inset->width() <= dim.wid);
223 BOOST_ASSERT(inset->ascent() <= dim.asc);
224 BOOST_ASSERT(inset->descent() <= dim.des);
225 int const x2 = x1 + dim.wid;
226 int const y1 = yo_ + dim.des;
227 int const y2 = yo_ - dim.asc;
228 pi.pain.line(x1, y1, x1, y2, LColor::green);
229 pi.pain.line(x1, y1, x2, y1, LColor::green);
230 pi.pain.line(x2, y1, x2, y2, LColor::green);
231 pi.pain.line(x1, y2, x2, y2, LColor::green);
236 void RowPainter::paintHebrewComposeChar(pos_type & vpos, LyXFont const & font)
238 pos_type pos = text_.bidi.vis2log(vpos);
243 char_type c = par_.getChar(pos);
247 int const width = theFontMetrics(font).width(c);
250 for (pos_type i = pos - 1; i >= 0; --i) {
252 if (!Encodings::isComposeChar_hebrew(c)) {
253 if (isPrintableNonspace(c)) {
254 int const width2 = text_.singleWidth(par_, i, c,
255 text_.getFont(*bv_.buffer(), par_, i));
257 // This does not work anymore, and non-ascii
258 // characters in source files are forbidden
261 dx = (c == 'ø' || c == 'ã')
263 : (width2 - width) / 2;
271 pain_.text(int(x_) + dx, yo_, str, font);
275 void RowPainter::paintArabicComposeChar(pos_type & vpos, LyXFont const & font)
277 pos_type pos = text_.bidi.vis2log(vpos);
281 char_type c = par_.getChar(pos);
282 c = par_.transformChar(c, pos);
286 int const width = theFontMetrics(font).width(c);
289 for (pos_type i = pos - 1; i >= 0; --i) {
291 if (!Encodings::isComposeChar_arabic(c)) {
292 if (isPrintableNonspace(c)) {
293 int const width2 = text_.singleWidth(par_, i, c,
294 text_.getFont(*bv_.buffer(), par_, i));
295 dx = (width2 - width) / 2;
301 pain_.text(int(x_) + dx, yo_, str, font);
305 void RowPainter::paintChars(pos_type & vpos, LyXFont const & font,
306 bool hebrew, bool arabic)
308 // This method takes up 70% of time when typing
309 pos_type pos = text_.bidi.vis2log(vpos);
310 pos_type const end = row_.endpos();
311 FontSpan const font_span = par_.fontSpan(pos);
312 Change::Type const prev_change = par_.lookupChange(pos).type;
315 std::vector<char_type> str;
317 str.push_back(par_.getChar(pos));
320 char_type c = str[0];
321 str[0] = par_.transformChar(c, pos);
324 // collect as much similar chars as we can
325 for (++vpos ; vpos < end ; ++vpos) {
326 pos = text_.bidi.vis2log(vpos);
327 if (pos < font_span.first || pos > font_span.last)
330 if (prev_change != par_.lookupChange(pos).type)
333 char_type c = par_.getChar(pos);
335 if (!isPrintableNonspace(c))
338 if (arabic && Encodings::isComposeChar_arabic(c))
341 if (hebrew && Encodings::isComposeChar_hebrew(c))
345 c = par_.transformChar(c, pos);
350 docstring s(&str[0], str.size());
352 if (prev_change != Change::UNCHANGED) {
354 if (prev_change == Change::DELETED) {
355 copy.setColor(LColor::strikeout);
356 } else if (prev_change == Change::INSERTED) {
357 copy.setColor(LColor::newtext);
359 x_ += pain_.text(int(x_), yo_, s, copy);
361 x_ += pain_.text(int(x_), yo_, s, font);
366 void RowPainter::paintForeignMark(double orig_x, LyXFont const & font, int desc)
368 if (!lyxrc.mark_foreign_language)
370 if (font.language() == latex_language)
372 if (font.language() == bv_.buffer()->params().language)
375 int const y = yo_ + 1 + desc;
376 pain_.line(int(orig_x), y, int(x_), y, LColor::language);
380 void RowPainter::paintFromPos(pos_type & vpos)
382 pos_type const pos = text_.bidi.vis2log(vpos);
383 LyXFont orig_font = text_.getFont(*bv_.buffer(), par_, pos);
385 double const orig_x = x_;
387 if (par_.isInset(pos)) {
388 paintInset(pos, orig_font);
390 paintForeignMark(orig_x, orig_font,
391 par_.getInset(pos)->descent());
395 // usual characters, no insets
396 char_type const c = par_.getChar(pos);
398 // special case languages
399 std::string const & lang = orig_font.language()->lang();
400 bool const hebrew = lang == "hebrew";
401 bool const arabic = lang == "arabic" &&
402 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
403 lyxrc.font_norm_type == LyXRC::ISO_10646_1);
405 // draw as many chars as we can
406 if ((!hebrew && !arabic)
407 || (hebrew && !Encodings::isComposeChar_hebrew(c))
408 || (arabic && !Encodings::isComposeChar_arabic(c))) {
409 paintChars(vpos, orig_font, hebrew, arabic);
411 paintHebrewComposeChar(vpos, orig_font);
413 paintArabicComposeChar(vpos, orig_font);
416 paintForeignMark(orig_x, orig_font);
420 void RowPainter::paintChangeBar()
422 pos_type const start = row_.pos();
423 pos_type end = row_.endpos();
425 if (par_.size() == end) {
426 // this is the last row of the paragraph;
427 // thus, we must also consider the imaginary end-of-par character
431 if (start == end || !par_.isChanged(start, end))
434 int const height = text_.isLastRow(pit_, row_)
438 pain_.fillRectangle(5, yo_ - row_.ascent(), 3, height, LColor::changebar);
442 void RowPainter::paintAppendix()
444 if (!par_.params().appendix())
447 int y = yo_ - row_.ascent();
449 if (par_.params().startOfAppendix())
450 y += 2 * defaultRowHeight();
452 pain_.line(1, y, 1, yo_ + row_.height(), LColor::appendix);
453 pain_.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), LColor::appendix);
457 void RowPainter::paintDepthBar()
459 depth_type const depth = par_.getDepth();
464 depth_type prev_depth = 0;
465 if (!text_.isFirstRow(pit_, row_)) {
466 pit_type pit2 = pit_;
469 prev_depth = pars_[pit2].getDepth();
472 depth_type next_depth = 0;
473 if (!text_.isLastRow(pit_, row_)) {
474 pit_type pit2 = pit_;
475 if (row_.endpos() >= pars_[pit2].size())
477 next_depth = pars_[pit2].getDepth();
480 for (depth_type i = 1; i <= depth; ++i) {
481 int const w = nestMargin() / 5;
482 int x = int(xo_) + w * i;
483 // only consider the changebar space if we're drawing outermost text
484 if (text_.isMainText(*bv_.buffer()))
485 x += changebarMargin();
487 int const starty = yo_ - row_.ascent();
488 int const h = row_.height() - 1 - (i - next_depth - 1) * 3;
490 pain_.line(x, starty, x, starty + h, LColor::depthbar);
493 pain_.fillRectangle(x, starty, w, 2, LColor::depthbar);
495 pain_.fillRectangle(x, starty + h, w, 2, LColor::depthbar);
500 int RowPainter::paintAppendixStart(int y)
503 pb_font.setColor(LColor::appendix);
510 docstring const label = _("Appendix");
511 theFontMetrics(pb_font).rectText(label, w, a, d);
513 int const text_start = int(xo_ + (width_ - w) / 2);
514 int const text_end = text_start + w;
516 pain_.rectText(text_start, y + d, label, pb_font, LColor::none, LColor::none);
518 pain_.line(int(xo_ + 1), y, text_start, y, LColor::appendix);
519 pain_.line(text_end, y, int(xo_ + width_ - 2), y, LColor::appendix);
521 return 3 * defaultRowHeight();
525 void RowPainter::paintFirst()
527 ParagraphParameters const & parparams = par_.params();
531 // start of appendix?
532 if (parparams.startOfAppendix())
533 y_top += paintAppendixStart(yo_ - row_.ascent() + 2 * defaultRowHeight());
535 Buffer const & buffer = *bv_.buffer();
537 LyXLayout_ptr const & layout = par_.layout();
539 if (buffer.params().paragraph_separation == BufferParams::PARSEP_SKIP) {
541 if (layout->latextype == LATEX_PARAGRAPH
542 && !par_.getDepth()) {
543 y_top += buffer.params().getDefSkip().inPixels(bv_);
545 LyXLayout_ptr const & playout = pars_[pit_ - 1].layout();
546 if (playout->latextype == LATEX_PARAGRAPH
547 && !pars_[pit_ - 1].getDepth()) {
548 // is it right to use defskip here, too? (AS)
549 y_top += buffer.params().getDefSkip().inPixels(bv_);
555 bool const is_rtl = text_.isRTL(buffer, par_);
556 bool const is_seq = isFirstInSequence(pit_, text_.paragraphs());
557 //lyxerr << "paintFirst: " << par_.id() << " is_seq: " << is_seq << std::endl;
559 // should we print a label?
560 if (layout->labeltype >= LABEL_STATIC
561 && (layout->labeltype != LABEL_STATIC
562 || layout->latextype != LATEX_ENVIRONMENT
565 LyXFont const font = getLabelFont();
566 FontMetrics const & fm = theFontMetrics(font);
568 docstring const str = par_.getLabelstring();
572 // this is special code for the chapter layout. This is
573 // printed in an extra row and has a pagebreak at
575 if (layout->counter == "chapter") {
576 double spacing_val = 1.0;
577 if (!parparams.spacing().isDefault()) {
578 spacing_val = parparams.spacing().getValue();
580 spacing_val = buffer.params().spacing().getValue();
583 int const labeladdon = int(fm.maxHeight() * layout->spacing.getValue() * spacing_val);
585 int const maxdesc = int(fm.maxDescent() * layout->spacing.getValue() * spacing_val)
586 + int(layout->parsep) * defaultRowHeight();
589 x = width_ - leftMargin() -
593 pain_.text(int(x), yo_ - maxdesc - labeladdon, str, font);
596 docstring lab = from_utf8(layout->labelsep);
598 x = width_ - leftMargin()
601 x = x_ - fm.width(lab)
605 pain_.text(int(x), yo_, str, font);
609 // the labels at the top of an environment.
610 // More or less for bibliography
612 (layout->labeltype == LABEL_TOP_ENVIRONMENT ||
613 layout->labeltype == LABEL_BIBLIO ||
614 layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
615 LyXFont font = getLabelFont();
616 if (!par_.getLabelstring().empty()) {
617 docstring const str = par_.getLabelstring();
618 double spacing_val = 1.0;
619 if (!parparams.spacing().isDefault())
620 spacing_val = parparams.spacing().getValue();
622 spacing_val = buffer.params().spacing().getValue();
624 FontMetrics const & fm = theFontMetrics(font);
626 int const labeladdon = int(fm.maxHeight()
627 * layout->spacing.getValue() * spacing_val);
630 int(fm.maxDescent() * layout->spacing.getValue() * spacing_val
631 + (layout->labelbottomsep * defaultRowHeight()));
634 if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
637 x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
638 x -= fm.width(str) / 2;
640 x = width_ - leftMargin() - fm.width(str);
642 pain_.text(int(x), yo_ - maxdesc - labeladdon, str, font);
648 void RowPainter::paintLast()
650 bool const is_rtl = text_.isRTL(*bv_.buffer(), par_);
651 int const endlabel = getEndLabel(pit_, text_.paragraphs());
653 // paint imaginary end-of-paragraph character
655 if (par_.isInserted(par_.size()) || par_.isDeleted(par_.size())) {
656 FontMetrics const & fm = theFontMetrics(bv_.buffer()->params().getFont());
657 int const length = fm.maxAscent() / 2;
658 LColor::color col = par_.isInserted(par_.size()) ? LColor::newtext : LColor::strikeout;
660 pain_.line(int(x_) + 1, yo_ + 2, int(x_) + 1, yo_ + 2 - length, col,
661 Painter::line_solid, Painter::line_thick);
662 pain_.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1, yo_ + 2, col,
663 Painter::line_solid, Painter::line_thick);
670 case END_LABEL_FILLED_BOX: {
671 LyXFont const font = getLabelFont();
672 FontMetrics const & fm = theFontMetrics(font);
673 int const size = int(0.75 * fm.maxAscent());
674 int const y = yo_ - size;
675 int x = is_rtl ? nestMargin() + changebarMargin() : width_ - size;
677 if (width_ - int(row_.width()) <= size)
678 x += (size - width_ + row_.width() + 1) * (is_rtl ? -1 : 1);
680 if (endlabel == END_LABEL_BOX)
681 pain_.rectangle(x, y, size, size, LColor::eolmarker);
683 pain_.fillRectangle(x, y, size, size, LColor::eolmarker);
687 case END_LABEL_STATIC: {
688 LyXFont font = getLabelFont();
689 FontMetrics const & fm = theFontMetrics(font);
690 docstring const & str = par_.layout()->endlabelstring();
691 double const x = is_rtl ?
693 : - text_metrics_.rightMargin(pm_) - row_.width();
694 pain_.text(int(x), yo_, str, font);
698 case END_LABEL_NO_LABEL:
704 void RowPainter::paintText()
706 pos_type const end = row_.endpos();
707 pos_type body_pos = par_.beginOfBody();
709 (body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
713 LyXLayout_ptr const & layout = par_.layout();
715 bool running_strikeout = false;
716 bool is_struckout = false;
717 int last_strikeout_x = 0;
719 // Use font span to speed things up, see below
722 Buffer const & buffer = *bv_.buffer();
724 for (pos_type vpos = row_.pos(); vpos < end; ) {
725 if (x_ > bv_.workWidth())
728 pos_type const pos = text_.bidi.vis2log(vpos);
730 if (pos >= par_.size()) {
735 // Use font span to speed things up, see above
736 if (vpos < font_span.first || vpos > font_span.last) {
737 font_span = par_.fontSpan(vpos);
738 font = text_.getFont(buffer, par_, vpos);
741 const int width_pos =
742 text_.singleWidth(par_, pos, par_.getChar(pos), font);
744 if (x_ + width_pos < 0) {
750 is_struckout = par_.isDeleted(pos);
752 if (is_struckout && !running_strikeout) {
753 running_strikeout = true;
754 last_strikeout_x = int(x_);
757 bool const highly_editable_inset = par_.isInset(pos)
758 && isHighlyEditableInset(par_.getInset(pos));
760 // If we reach the end of a struck out range, paint it.
761 // We also don't paint across things like tables
762 if (running_strikeout && (highly_editable_inset || !is_struckout)) {
763 // Calculate 1/3 height of the buffer's default font
764 FontMetrics const & fm
765 = theFontMetrics(bv_.buffer()->params().getFont());
766 int const middle = yo_ - fm.maxAscent() / 3;
767 pain_.line(last_strikeout_x, middle, int(x_), middle,
768 LColor::strikeout, Painter::line_solid, Painter::line_thin);
769 running_strikeout = false;
772 if (body_pos > 0 && pos == body_pos - 1) {
774 int const lwidth = theFontMetrics(getLabelFont())
775 .width(from_utf8(layout->labelsep));
777 x_ += label_hfill_ + lwidth - width_pos;
780 if (par_.isHfill(pos)) {
784 int const y1 = y0 - defaultRowHeight() / 2;
786 pain_.line(int(x_), y1, int(x_), y0, LColor::added_space);
788 if (par_.hfillExpansion(row_, pos)) {
789 int const y2 = (y0 + y1) / 2;
791 if (pos >= body_pos) {
792 pain_.line(int(x_), y2, int(x_ + hfill_), y2,
794 Painter::line_onoffdash);
797 pain_.line(int(x_), y2, int(x_ + label_hfill_), y2,
799 Painter::line_onoffdash);
802 pain_.line(int(x_), y1, int(x_), y0, LColor::added_space);
806 } else if (par_.isSeparator(pos)) {
816 // if we reach the end of a struck out range, paint it
817 if (running_strikeout) {
818 // calculate 1/3 height of the buffer's default font
819 FontMetrics const & fm
820 = theFontMetrics(bv_.buffer()->params().getFont());
821 int const middle = yo_ - fm.maxAscent() / 3;
822 pain_.line(last_strikeout_x, middle, int(x_), middle,
823 LColor::strikeout, Painter::line_solid, Painter::line_thin);
824 running_strikeout = false;
829 bool CursorOnRow(PainterInfo & pi, pit_type const pit,
830 RowList::const_iterator rit, LyXText const & text)
832 // Is there a cursor on this row (or inside inset on row)
833 LCursor & cur = pi.base.bv->cursor();
834 for (size_type d = 0; d < cur.depth(); ++d) {
835 CursorSlice const & sl = cur[d];
836 if (sl.text() == &text
838 && sl.pos() >= rit->pos()
839 && sl.pos() <= rit->endpos())
846 bool innerCursorOnRow(PainterInfo & pi, pit_type pit,
847 RowList::const_iterator rit, LyXText const & text)
849 // Is there a cursor inside an inset on this row, and is this inset
850 // the only "character" on this row
851 LCursor & cur = pi.base.bv->cursor();
852 if (rit->pos() + 1 != rit->endpos())
854 for (size_type d = 0; d < cur.depth(); d++) {
855 CursorSlice const & sl = cur[d];
856 if (sl.text() == &text
858 && sl.pos() == rit->pos())
859 return d < cur.depth() - 1;
866 (PainterInfo & pi, LyXText const & text, pit_type pit, int x, int y,
869 // lyxerr << " paintPar: pit: " << pit << " at y: " << y << endl;
870 int const ww = pi.base.bv->workHeight();
872 pi.base.bv->coordCache().parPos()[&text][pit] = Point(x, y);
874 Paragraph const & par = text.paragraphs()[pit];
875 ParagraphMetrics const & pm = pi.base.bv->parMetrics(&text, pit);
876 if (pm.rows().empty())
879 RowList::const_iterator const rb = pm.rows().begin();
880 RowList::const_iterator const re = pm.rows().end();
884 for (RowList::const_iterator rit = rb; rit != re; ++rit, ++rowno) {
886 // Allow setting of refreshInside for nested insets in
888 bool tmp = refreshInside;
890 // Row signature; has row changed since last paint?
891 bool row_has_changed = pm.rowChangeStatus()[rowno];
893 bool cursor_on_row = CursorOnRow(pi, pit, rit, text);
894 bool in_inset_alone_on_row = innerCursorOnRow(pi, pit, rit,
897 (par.getAlign() == LYX_ALIGN_LEFT ||
898 par.getAlign() == LYX_ALIGN_BLOCK);
900 // If this is the only object on the row, we can make it wide
902 // FIXME: there is a const_cast here because paintPar() is not supposed
903 // to touch the paragraph contents. So either we move this "wide"
904 // property out of InsetText or we localize the feature to the painting
906 for (pos_type i = rit->pos() ; i != rit->endpos(); ++i) {
907 InsetBase const * const in = par.getInset(i);
909 InsetText * t = const_cast<InsetText *>(in->asTextInset());
911 t->setWide(in_inset_alone_on_row && leftEdgeFixed);
915 // If selection is on, the current row signature differs
916 // from cache, or cursor is inside an inset _on this row_,
917 // then paint the row
918 if (repaintAll || row_has_changed || cursor_on_row) {
919 bool const inside = (y + rit->descent() >= 0
920 && y - rit->ascent() < ww);
921 // it is not needed to draw on screen if we are not inside.
922 pi.pain.setDrawingEnabled(inside);
923 RowPainter rp(pi, text, pit, *rit, x, y);
924 // Clear background of this row
925 // (if paragraph background was not cleared)
927 (!(in_inset_alone_on_row && leftEdgeFixed)
928 || row_has_changed)) {
929 pi.pain.fillRectangle(x, y - rit->ascent(),
930 rp.maxWidth(), rit->height(),
931 text.backgroundColor());
932 // If outer row has changed, force nested
933 // insets to repaint completely
935 refreshInside = true;
938 // Instrumentation for testing row cache (see also
940 if (lyxerr.debugging(Debug::PAINTING)) {
941 if (text.isMainText(*pi.base.bv->buffer()))
942 lyxerr[Debug::PAINTING] << "#";
944 lyxerr[Debug::PAINTING] << "[" <<
945 repaintAll << row_has_changed <<
946 cursor_on_row << "]";
958 // Restore, see above
961 // Re-enable screen drawing for future use of the painter.
962 pi.pain.setDrawingEnabled(true);
964 if (lyxerr.debugging(Debug::PAINTING)) {
965 lyxerr[Debug::PAINTING] << "." << endl;
972 void paintText(BufferView & bv,
975 BOOST_ASSERT(bv.buffer());
976 Buffer const & buffer = *bv.buffer();
977 LyXText & text = buffer.text();
978 bool const select = bv.cursor().selection();
979 ViewMetricsInfo const & vi = bv.viewMetricsInfo();
981 PainterInfo pi(const_cast<BufferView *>(&bv), pain);
982 // Should the whole screen, including insets, be refreshed?
983 // FIXME: We should also distinguish DecorationUpdate to avoid text
984 // drawing if possible. This is not possible to do easily right now
985 // because of the single backing pixmap.
986 bool repaintAll = select || vi.update_strategy != SingleParUpdate;
989 // Clear background (if not delegated to rows)
990 pain.fillRectangle(0, vi.y1, bv.workWidth(), vi.y2 - vi.y1,
991 text.backgroundColor());
994 text.drawSelection(pi, 0, 0);
999 for (pit_type pit = vi.p1; pit <= vi.p2; ++pit) {
1000 refreshInside = repaintAll;
1001 ParagraphMetrics const & pm = bv.parMetrics(&text, pit);
1003 paintPar(pi, text, pit, 0, yy, repaintAll);
1007 // and grey out above (should not happen later)
1008 // lyxerr << "par ascent: " << text.getPar(vi.p1).ascent() << endl;
1009 if (vi.y1 > 0 && vi.update_strategy != SingleParUpdate)
1010 pain.fillRectangle(0, 0, bv.workWidth(), vi.y1, LColor::bottomarea);
1012 // and possibly grey out below
1013 // lyxerr << "par descent: " << text.getPar(vi.p1).ascent() << endl;
1014 if (vi.y2 < bv.workHeight() && vi.update_strategy != SingleParUpdate)
1015 pain.fillRectangle(0, vi.y2, bv.workWidth(), bv.workHeight() - vi.y2, LColor::bottomarea);
1019 void paintTextInset(LyXText const & text, PainterInfo & pi, int x, int y)
1021 // lyxerr << " paintTextInset: y: " << y << endl;
1023 y -= pi.base.bv->parMetrics(&text, 0).ascent();
1024 // This flag cannot be set from within same inset:
1025 bool repaintAll = refreshInside;
1026 for (int pit = 0; pit < int(text.paragraphs().size()); ++pit) {
1027 ParagraphMetrics const & pmi
1028 = pi.base.bv->parMetrics(&text, pit);
1030 paintPar(pi, text, pit, x, y, repaintAll);