#include "TextClass.h"
#include "VSpace.h"
+#include "insets/InsetSeparator.h"
#include "insets/InsetText.h"
#include "mathed/MacroTable.h"
// If there is an end of paragraph marker, its size should be
// substracted to the available width. The logic here is
- // almost the same as in breakRow, remember keep them in sync.
+ // almost the same as in tokenizeParagraph, remember keep them in sync.
int eop = 0;
if (e.pos + 1 == par.size()
&& (lyxrc.paragraph_markers || par.lookupChange(par.size()).changed())
if (Inset const * inset = par.getInset(row.pos())) {
if (inset->rowFlags() & Display) {
if (inset->rowFlags() & AlignLeft)
- align = LYX_ALIGN_BLOCK;
+ align = LYX_ALIGN_LEFT;
else if (inset->rowFlags() & AlignRight)
align = LYX_ALIGN_RIGHT;
else
}
-int TextMetrics::labelEnd(pit_type const pit) const
-{
- // labelEnd is only needed if the layout fills a flushleft label.
- if (text_->getPar(pit).layout().margintype != MARGIN_MANUAL)
- return 0;
- // return the beginning of the body
- return leftMargin(pit);
-}
-
namespace {
/**
Dimension dim = bv_->coordCache().insets().dim(ins);
row.add(i, ins, dim, *fi, par.lookupChange(i));
} else if (c == ' ' && i + 1 == body_pos) {
- // There is a space at i, but it should not be
- // added as a separator, because it is just
- // before body_pos. Instead, insert some spacing to
- // align text
+ // This space is an \item separator. Represent it with a
+ // special space element, which dimension will be computed
+ // in breakRow.
FontMetrics const & fm = theFontMetrics(text_->labelFont(par));
- // this is needed to make sure that the row width is correct
- row.finalizeLast();
- int const add = max(fm.width(par.layout().labelsep),
- labelEnd(pit) - row.width());
- row.addSpace(i, add, *fi, par.lookupChange(i));
+ int const wid = fm.width(par.layout().labelsep);
+ row.addMarginSpace(i, wid, *fi, par.lookupChange(i));
} else if (c == '\t')
row.addSpace(i, theFontMetrics(*fi).width(from_ascii(" ")),
*fi, par.lookupChange(i));
* U+2029 PARAGRAPH SEPARATOR
* These are special unicode characters that break
- * lines/pragraphs. Not handling them lead to trouble wrt
+ * lines/pragraphs. Not handling them leads to trouble wrt
* Qt QTextLayout formatting. We add a visible character
* on screen so that the user can see that something is
* happening.
// ⤶ U+2936 ARROW POINTING DOWNWARDS THEN CURVING LEFTWARDS
// ¶ U+00B6 PILCROW SIGN
char_type const screen_char = (c == 0x2028) ? 0x2936 : 0x00B6;
- row.add(i, screen_char, *fi, par.lookupChange(i), i >= body_pos);
+ row.add(i, screen_char, *fi, par.lookupChange(i));
} else
// row elements before body are unbreakable
- row.add(i, c, *fi, par.lookupChange(i), i >= body_pos);
+ row.add(i, c, *fi, par.lookupChange(i));
// add inline completion width
// draw logically behind the previous character
public:
//
- flexible_const_iterator operator++() {
+ flexible_const_iterator & operator++() {
if (pile_.empty())
++cit_;
else
void put(value_type const & e) { pile_.push_back(e); }
+ // Put a sequence of elements on the pile (in reverse order!)
+ void put(vector<value_type> const & elts) {
+ pile_.insert(pile_.end(), elts.rbegin(), elts.rend());
+ }
+
// This should be private, but declaring the friend functions is too much work
//private:
typename T::const_iterator cit_;
return t1.cit_ == t2.cit_ && t1.pile_.empty() && t2.pile_.empty();
}
+
Row newRow(TextMetrics const & tm, pit_type pit, pos_type pos, bool is_rtl)
{
Row nrow;
nrow.pos(pos);
nrow.left_margin = tm.leftMargin(pit, pos);
nrow.right_margin = tm.rightMargin(pit);
+ nrow.setRTL(is_rtl);
if (is_rtl)
swap(nrow.left_margin, nrow.right_margin);
// Remember that the row width takes into account the left_margin
}
-void cleanupRow(Row & row, pos_type pos, pos_type real_endpos, bool is_rtl)
+void cleanupRow(Row & row, bool at_end)
{
- row.endpos(pos);
- row.right_boundary(!row.empty() && pos < real_endpos
- && row.back().endpos == pos);
+ if (row.empty()) {
+ row.endpos(row.pos());
+ return;
+ }
+
+ row.endpos(row.back().endpos);
+ // remove trailing spaces on row break
+ if (!at_end && !row.flushed())
+ row.back().rtrim();
+ // boundary exists when there was no space at the end of row
+ row.end_boundary(!at_end && row.back().endpos == row.endpos());
// make sure that the RTL elements are in reverse ordering
- row.reverseRTL(is_rtl);
+ row.reverseRTL();
}
+
// Implement the priorities described in RowFlags.h.
bool needsRowBreak(int f1, int f2)
{
RowList rows;
bool const is_rtl = text_->isRTL(bigrow.pit());
bool const end_label = text_->getEndLabel(bigrow.pit()) != END_LABEL_NO_LABEL;
+ int const next_width = max_width_ - leftMargin(bigrow.pit(), bigrow.endpos())
+ - rightMargin(bigrow.pit());
- bool need_new_row = true;
- pos_type pos = 0;
int width = 0;
flexible_const_iterator<Row> fcit = flexible_begin(bigrow);
flexible_const_iterator<Row> const end = flexible_end(bigrow);
while (true) {
- bool const has_row = !rows.empty();
- bool const row_empty = !has_row || rows.back().empty();
+ bool const row_empty = rows.empty() || rows.back().empty();
// The row flags of previous element, if there is one.
// Otherwise we use NoBreakAfter to avoid an empty row before
// e.g. a displayed equation.
// paragraph has an end label (for which an empty row is OK).
int const f2 = (fcit == end) ? (end_label ? Inline : NoBreakBefore)
: fcit->row_flags;
- need_new_row |= needsRowBreak(f1, f2);
- if (need_new_row) {
- if (!rows.empty())
- cleanupRow(rows.back(), pos, bigrow.endpos(), is_rtl);
+ if (rows.empty() || needsRowBreak(f1, f2)) {
+ if (!rows.empty()) {
+ // Flush row as requested by row flags
+ rows.back().flushed((f1 & Flush) || (f2 & FlushBefore));
+ cleanupRow(rows.back(), false);
+ }
+ pos_type pos = rows.empty() ? 0 : rows.back().endpos();
rows.push_back(newRow(*this, bigrow.pit(), pos, is_rtl));
// the width available for the row.
width = max_width_ - rows.back().right_margin;
- need_new_row = false;
}
// The stopping condition is here because we may need a new
// Next element to consider is either the top of the temporary
// pile, or the place when we were in main row
Row::Element elt = *fcit;
- Row::Element next_elt = elt.splitAt(width - rows.back().width(),
- !elt.font.language()->wordWrap());
- // a new element in the row
- rows.back().push_back(elt);
- rows.back().finalizeLast();
- pos = elt.endpos;
+ Row::Elements tail;
+ elt.splitAt(width - rows.back().width(), next_width, false, tail);
+ Row & rb = rows.back();
+ if (elt.type == Row::MARGINSPACE)
+ elt.dim.wid = max(elt.dim.wid, leftMargin(bigrow.pit()) - rb.width());
+ rb.push_back(elt);
+ rb.finalizeLast();
+ if (rb.width() > width) {
+ // Keep the tail for later; this ought to be rare, but play safe.
+ if (!tail.empty())
+ fcit.put(tail);
+ // if the row is too large, try to cut at last separator.
+ tail = rb.shortenIfNeeded(width, next_width);
+ }
// Go to next element
++fcit;
- // Add a new next element on the pile
- if (next_elt.isValid()) {
- // do as if we inserted this element in the original row
- fcit.put(next_elt);
- need_new_row = true;
- }
+ // Handle later the elements returned by splitAt or shortenIfNeeded.
+ fcit.put(tail);
}
if (!rows.empty()) {
- cleanupRow(rows.back(), pos, bigrow.endpos(), is_rtl);
// Last row in paragraph is flushed
rows.back().flushed(true);
+ cleanupRow(rows.back(), true);
}
return rows;
}
-/** This is the function where the hard work is done. The code here is
- * very sensitive to small changes :) Note that part of the
- * intelligence is also in Row::shortenIfNeeded.
- */
-bool TextMetrics::breakRow(Row & row, int const right_margin) const
-{
- LATTEST(row.empty());//
- Paragraph const & par = text_->getPar(row.pit());//
- Buffer const & buf = text_->inset().buffer();//
- BookmarksSection::BookmarkPosList bpl =//
- theSession().bookmarks().bookmarksInPar(buf.fileName(), par.id());//
-
- pos_type const end = par.size();//
- pos_type const pos = row.pos();//
- pos_type const body_pos = par.beginOfBody();//
- bool const is_rtl = text_->isRTL(row.pit());//
- bool need_new_row = false;//
-
- row.left_margin = leftMargin(row.pit(), pos);//
- row.right_margin = right_margin;//
- if (is_rtl)//
- swap(row.left_margin, row.right_margin);//
- // Remember that the row width takes into account the left_margin
- // but not the right_margin.
- row.dim().wid = row.left_margin;//
- // the width available for the row.
- int const width = max_width_ - row.right_margin;//
-
- // check for possible inline completion
- DocIterator const & ic_it = bv_->inlineCompletionPos();//
- pos_type ic_pos = -1;//
- if (ic_it.inTexted() && ic_it.text() == text_ && ic_it.pit() == row.pit())//
- ic_pos = ic_it.pos();//
-
- // Now we iterate through until we reach the right margin
- // or the end of the par, then build a representation of the row.
- pos_type i = pos;//---------------------------------------------------vvv
- FontIterator fi = FontIterator(*this, par, row.pit(), pos);
- // The real stopping condition is a few lines below.
- while (true) {
- // Firstly, check whether there is a bookmark here.
- if (lyxrc.bookmarks_visibility == LyXRC::BMK_INLINE)
- for (auto const & bp_p : bpl)
- if (bp_p.second == i) {
- Font f = *fi;
- f.fontInfo().setColor(Color_bookmark);
- // ❶ U+2776 DINGBAT NEGATIVE CIRCLED DIGIT ONE
- char_type const ch = 0x2775 + bp_p.first;
- row.addVirtual(i, docstring(1, ch), f, Change());
- }
-
- // The stopping condition is here so that the display of a
- // bookmark can take place at paragraph start too.
- if (i >= end || (i != pos && row.width() > width))//^width
- break;
-
- char_type c = par.getChar(i);
- // The most special cases are handled first.
- if (par.isInset(i)) {
- Inset const * ins = par.getInset(i);
- Dimension dim = bv_->coordCache().insets().dim(ins);
- row.add(i, ins, dim, *fi, par.lookupChange(i));
- } else if (c == ' ' && i + 1 == body_pos) {
- // There is a space at i, but it should not be
- // added as a separator, because it is just
- // before body_pos. Instead, insert some spacing to
- // align text
- FontMetrics const & fm = theFontMetrics(text_->labelFont(par));
- // this is needed to make sure that the row width is correct
- row.finalizeLast();
- int const add = max(fm.width(par.layout().labelsep),
- labelEnd(row.pit()) - row.width());
- row.addSpace(i, add, *fi, par.lookupChange(i));
- } else if (c == '\t')
- row.addSpace(i, theFontMetrics(*fi).width(from_ascii(" ")),
- *fi, par.lookupChange(i));
- else if (c == 0x2028 || c == 0x2029) {
- /**
- * U+2028 LINE SEPARATOR
- * U+2029 PARAGRAPH SEPARATOR
-
- * These are special unicode characters that break
- * lines/pragraphs. Not handling them lead to trouble wrt
- * Qt QTextLayout formatting. We add a visible character
- * on screen so that the user can see that something is
- * happening.
- */
- row.finalizeLast();
- // ⤶ U+2936 ARROW POINTING DOWNWARDS THEN CURVING LEFTWARDS
- // ¶ U+00B6 PILCROW SIGN
- char_type const screen_char = (c == 0x2028) ? 0x2936 : 0x00B6;
- row.add(i, screen_char, *fi, par.lookupChange(i), i >= body_pos);
- } else
- row.add(i, c, *fi, par.lookupChange(i), i >= body_pos);
-
- // add inline completion width
- // draw logically behind the previous character
- if (ic_pos == i + 1 && !bv_->inlineCompletion().empty()) {
- docstring const comp = bv_->inlineCompletion();
- size_t const uniqueTo =bv_->inlineCompletionUniqueChars();
- Font f = *fi;
-
- if (uniqueTo > 0) {
- f.fontInfo().setColor(Color_inlinecompletion);
- row.addVirtual(i + 1, comp.substr(0, uniqueTo), f, Change());
- }
- f.fontInfo().setColor(Color_nonunique_inlinecompletion);
- row.addVirtual(i + 1, comp.substr(uniqueTo), f, Change());
- }
-
- // Handle some situations that abruptly terminate the row
- // - Before an inset with BreakBefore
- // - After an inset with BreakAfter
- Inset const * prevInset = !row.empty() ? row.back().inset : 0;
- Inset const * nextInset = (i + 1 < end) ? par.getInset(i + 1) : 0;
- if ((nextInset && nextInset->rowFlags() & BreakBefore)
- || (prevInset && prevInset->rowFlags() & BreakAfter)) {
- row.flushed(true);
- // Force a row creation after this one if it is ended by
- // an inset that either
- // - has row flag RowAfter that enforces that;
- // - or (1) did force the row breaking, (2) is at end of
- // paragraph and (3) the said paragraph has an end label.
- need_new_row = prevInset &&
- (prevInset->rowFlags() & AlwaysBreakAfter
- || (prevInset->rowFlags() & BreakAfter && i + 1 == end
- && text_->getEndLabel(row.pit()) != END_LABEL_NO_LABEL));
- ++i;
- break;
- }
-
- ++i;
- ++fi;
- }
- row.finalizeLast();
- row.endpos(i);
-
- // End of paragraph marker. The logic here is almost the
- // same as in redoParagraph, remember keep them in sync.
- ParagraphList const & pars = text_->paragraphs();
- Change const & change = par.lookupChange(i);
- if ((lyxrc.paragraph_markers || change.changed())
- && !need_new_row // not this
- && i == end && size_type(row.pit() + 1) < pars.size()) {
- // add a virtual element for the end-of-paragraph
- // marker; it is shown on screen, but does not exist
- // in the paragraph.
- Font f(text_->layoutFont(row.pit()));
- f.fontInfo().setColor(Color_paragraphmarker);
- f.setLanguage(par.getParLanguage(buf.params()));
- // ¶ U+00B6 PILCROW SIGN
- row.addVirtual(end, docstring(1, char_type(0x00B6)), f, change);
- }
-
- // Is there a end-of-paragaph change?
- if (i == end && par.lookupChange(end).changed() && !need_new_row)
- row.needsChangeBar(true);
- //--------------------------------------------------------------------^^^
- // FIXME : nothing below this
-
- // if the row is too large, try to cut at last separator. In case
- // of success, reset indication that the row was broken abruptly.
- int const next_width = max_width_ - leftMargin(row.pit(), row.endpos())
- - rightMargin(row.pit());
-
- if (row.shortenIfNeeded(width, next_width))
- row.flushed(false);
- row.right_boundary(!row.empty() && row.endpos() < end//
- && row.back().endpos == row.endpos());//
- // Last row in paragraph is flushed
- if (row.endpos() == end)//
- row.flushed(true);//
-
- // make sure that the RTL elements are in reverse ordering
- row.reverseRTL(is_rtl);//
- //LYXERR0("breakrow: row is " << row);
-
- return need_new_row;
-}
int TextMetrics::parTopSpacing(pit_type const pit) const
{
&& prevpar.getLabelWidthString() == par.getLabelWidthString()) {
layoutasc = layout.itemsep * dh;
} else if (pit != 0 && layout.topsep > 0)
- layoutasc = layout.topsep * dh;
+ // combine the separation between different layouts (with same depth)
+ layoutasc = max(0.0,
+ prevpar.getDepth() != par.getDepth() ? layout.topsep
+ : layout.topsep - prevpar.layout().bottomsep) * dh;
asc += int(layoutasc * 2 / (2 + pars[pit].getDepth()));
|| inset->lyxCode() == SEPARATOR_CODE))
pos = row.back().pos;
else
- boundary = row.right_boundary();
+ boundary = row.end_boundary();
}
x += xo - offset;
}
}
- // This happens after sections or environments in standard classes.
- // We have to check the previous layout at same depth.
+ // Check for reasons to remove indentation.
+ // First, at document level.
if (buffer.params().paragraph_separation ==
BufferParams::ParagraphSkipSeparation)
parindent.erase();
+ // This happens after sections or environments in standard classes.
+ // We have to check the previous layout at same depth.
else if (pit > 0 && pars[pit - 1].getDepth() >= par.getDepth()) {
pit_type prev = text_->depthHook(pit, par.getDepth());
if (par.layout() == pars[prev].layout()) {
} else if (pars[prev].layout().nextnoindent)
parindent.erase();
}
+ // The previous paragraph may have ended with a separator inset.
+ if (pit > 0) {
+ Paragraph const & ppar = pars[pit - 1];
+ if (ppar.size() > 0) {
+ auto * in = dynamic_cast<InsetSeparator const *>(ppar.getInset(ppar.size() - 1));
+ if (in != nullptr && in->nextnoindent())
+ parindent.erase();
+ }
+ }
FontInfo const labelfont = text_->labelFont(par);
FontMetrics const & lfm = theFontMetrics(labelfont);
swap(pi.leftx, pi.rightx);
BookmarksSection::BookmarkPosList bpl =
- theSession().bookmarks().bookmarksInPar(bv_->buffer().fileName(), pm.par().id());
+ theSession().bookmarks().bookmarksInPar(bv_->buffer().fileName(), pm.id());
for (size_t i = 0; i != nrows; ++i) {
// already cleared because of a full repaint.
if (!pi.full_repaint && row.changed()) {
LYXERR(Debug::PAINTING, "Clear rect@("
- << max(row_x, 0) << ", " << y - row.ascent() << ")="
+ << x << ", " << y - row.ascent() << ")="
<< width() << " x " << row.height());
- pi.pain.fillRectangle(row_x, y - row.ascent(),
+ pi.pain.fillRectangle(x, y - row.ascent(),
width(), row.height(), pi.background_color);
}
projects / lyx.git / blobdiff