#include "support/debug.h"
#include "support/lassert.h"
+#include <stdlib.h>
#include <cmath>
using namespace std;
}
// redo insets
+ par.setBeginOfBody();
Font const bufferfont = buffer.params().getFont();
CoordCache::Insets & insetCache = bv_->coordCache().insets();
InsetList::const_iterator ii = par.insetList().begin();
}
}
- par.setBeginOfBody();
pos_type first = 0;
size_t row_index = 0;
bool need_new_row = false;
pm.dim().des += row.height();
} while (first < par.size() || need_new_row);
+ if (row_index < pm.rows().size())
+ pm.rows().resize(row_index);
+
// FIXME: It might be better to move this in another method
// specially tailored for the main text.
// Top and bottom margin of the document (only at top-level)
if (text_->isMainText()) {
if (pit == 0) {
pm.rows().front().dimension().asc += 20;
+ /* coverity[copy_paste_error]: coverity thinks that we
+ * should update pm.dim().asc below, but all the rows
+ * heights are actually counted as part of the paragraph metric
+ * descent see loop above).
+ */
pm.dim().des += 20;
}
ParagraphList const & pars = text_->paragraphs();
}
}
- if (row_index < pm.rows().size())
- pm.rows().resize(row_index);
+ // The space above and below the paragraph.
+ int const top = parTopSpacing(pit);
+ pm.rows().front().dimension().asc += top;
+ int const bottom = parBottomSpacing(pit);
+ pm.rows().back().dimension().des += bottom;
+ pm.dim().des += top + bottom;
pm.dim().asc += pm.rows()[0].ascent();
pm.dim().des -= pm.rows()[0].ascent();
LyXAlignment TextMetrics::getAlign(Paragraph const & par, Row const & row) const
{
- Layout const & layout = par.layout();
-
- LyXAlignment align;
- if (par.params().align() == LYX_ALIGN_LAYOUT)
- align = layout.align;
- else
- align = par.params().align();
+ LyXAlignment align = par.getAlign();
// handle alignment inside tabular cells
Inset const & owner = text_->inset();
// not justify stuff, then don't stretch.
// A forced block alignment can only be overridden the 'no
// justification on screen' setting.
- if (((row.right_boundary() || row.endpos() == par.size())
- && !forced_block)
+ if ((row.flushed() && !forced_block)
|| !bv_->buffer().params().justification)
- align = text_->isRTL(par) ? LYX_ALIGN_RIGHT : LYX_ALIGN_LEFT;
+ align = row.isRTL() ? LYX_ALIGN_RIGHT : LYX_ALIGN_LEFT;
}
return align;
// Common case : there is no hfill, and the alignment will be
// meaningful
switch (getAlign(par, row)) {
- case LYX_ALIGN_BLOCK: {
- int const ns = row.countSeparators();
- // If we have separators, then stretch the row
- if (ns) {
- row.setSeparatorExtraWidth(double(w) / ns);
- row.dimension().wid += w;
- } else if (text_->isRTL(par)) {
+ case LYX_ALIGN_BLOCK:
+ // Expand expanding characters by a total of w
+ if (!row.setExtraWidth(w) && row.isRTL()) {
+ // Justification failed and the text is RTL: align to the right
row.left_margin += w;
row.dimension().wid += w;
}
break;
- }
case LYX_ALIGN_RIGHT:
row.left_margin += w;
row.dimension().wid += w;
return;
}
+ // Case nh > 0. There are hfill separators.
hfill = w / nh;
hfill_rem = w % nh;
row.dimension().wid += w;
} else if (c == '\t')
row.addSpace(i, theFontMetrics(*fi).width(from_ascii(" ")),
*fi, par.lookupChange(i));
- else {
+ 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));
+ } else {
// FIXME: please someone fix the Hebrew/Arabic parenthesis mess!
// see also Paragraph::getUChar.
if (fi->language()->lang() == "hebrew") {
&& inset->display())
|| (!row.empty() && row.back().inset
&& row.back().inset->display())) {
- row.right_boundary(true);
+ row.flushed(true);
need_new_row = par.isNewline(i);
++i;
break;
BufferParams const & bparams
= text_->inset().buffer().params();
f.setLanguage(par.getParLanguage(bparams));
+ // ¶ U+00B6 PILCROW SIGN
row.addVirtual(end, docstring(1, char_type(0x00B6)), f, Change());
}
// if the row is too large, try to cut at last separator. In case
// of success, reset indication that the row was broken abruptly.
- if (row.shortenIfNeeded(body_pos, width))
- row.right_boundary(false);
+ int const next_width = max_width_ - leftMargin(max_width_, row.pit(), row.endpos())
+ - rightMargin(row.pit());
+
+ row.shortenIfNeeded(body_pos, width, next_width);
+ 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);
return need_new_row;
}
+int TextMetrics::parTopSpacing(pit_type const pit) const
+{
+ Paragraph const & par = text_->getPar(pit);
+ Layout const & layout = par.layout();
-void TextMetrics::setRowHeight(Row & row, bool topBottomSpace) const
+ int asc = 0;
+ ParagraphList const & pars = text_->paragraphs();
+ double const dh = defaultRowHeight();
+
+ BufferParams const & bparams = bv_->buffer().params();
+ Inset const & inset = text_->inset();
+ // some parskips VERY EASY IMPLEMENTATION
+ if (bparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
+ && !inset.getLayout().parbreakIsNewline()
+ && !par.layout().parbreak_is_newline
+ && pit > 0
+ && ((layout.isParagraph() && par.getDepth() == 0)
+ || (pars[pit - 1].layout().isParagraph()
+ && pars[pit - 1].getDepth() == 0))) {
+ asc += bparams.getDefSkip().inPixels(*bv_);
+ }
+
+ if (par.params().startOfAppendix())
+ asc += int(3 * dh);
+
+ // special code for the top label
+ if (layout.labelIsAbove()
+ && (!layout.isParagraphGroup() || text_->isFirstInSequence(pit))
+ && !par.labelString().empty()) {
+ FontInfo labelfont = text_->labelFont(par);
+ FontMetrics const & lfm = theFontMetrics(labelfont);
+ asc += int(lfm.maxHeight() * layout.spacing.getValue()
+ * text_->spacing(par)
+ + (layout.topsep + layout.labelbottomsep) * dh);
+ }
+
+ // Add the layout spaces, for example before and after
+ // a section, or between the items of a itemize or enumerate
+ // environment.
+
+ pit_type prev = text_->depthHook(pit, par.getDepth());
+ Paragraph const & prevpar = pars[prev];
+ double layoutasc = 0;
+ if (prev != pit
+ && prevpar.layout() == layout
+ && prevpar.getDepth() == par.getDepth()
+ && prevpar.getLabelWidthString() == par.getLabelWidthString()) {
+ layoutasc = layout.itemsep * dh;
+ } else if (pit != 0 && layout.topsep > 0)
+ layoutasc = layout.topsep * dh;
+
+ asc += int(layoutasc * 2 / (2 + pars[pit].getDepth()));
+
+ prev = text_->outerHook(pit);
+ if (prev != pit_type(pars.size())) {
+ asc += int(pars[prev].layout().parsep * dh);
+ } else if (pit != 0) {
+ Paragraph const & prevpar = pars[pit - 1];
+ if (prevpar.getDepth() != 0 || prevpar.layout() == layout)
+ asc += int(layout.parsep * dh);
+ }
+
+ return asc;
+}
+
+
+int TextMetrics::parBottomSpacing(pit_type const pit) const
+{
+ double layoutdesc = 0;
+ ParagraphList const & pars = text_->paragraphs();
+ double const dh = defaultRowHeight();
+
+ // add the layout spaces, for example before and after
+ // a section, or between the items of a itemize or enumerate
+ // environment
+ pit_type nextpit = pit + 1;
+ if (nextpit != pit_type(pars.size())) {
+ pit_type cpit = pit;
+
+ if (pars[cpit].getDepth() > pars[nextpit].getDepth()) {
+ double usual = pars[cpit].layout().bottomsep * dh;
+ double unusual = 0;
+ cpit = text_->depthHook(cpit, pars[nextpit].getDepth());
+ if (pars[cpit].layout() != pars[nextpit].layout()
+ || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
+ unusual = pars[cpit].layout().bottomsep * dh;
+ layoutdesc = max(unusual, usual);
+ } else if (pars[cpit].getDepth() == pars[nextpit].getDepth()) {
+ if (pars[cpit].layout() != pars[nextpit].layout()
+ || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
+ layoutdesc = int(pars[cpit].layout().bottomsep * dh);
+ }
+ }
+
+ return int(layoutdesc * 2 / (2 + pars[pit].getDepth()));
+}
+
+
+void TextMetrics::setRowHeight(Row & row) const
{
Paragraph const & par = text_->getPar(row.pit());
Layout const & layout = par.layout();
- double const spacing_val = layout.spacing.getValue()
- * text_->spacing(par);
+ double const spacing_val = layout.spacing.getValue() * text_->spacing(par);
// Initial value for ascent (useful if row is empty).
Font const font = displayFont(row.pit(), row.pos());
++maxasc;
++maxdes;
- // Now use the layout information.
- double layoutasc = 0;
- double layoutdesc = 0;
- int labeladdon = 0;
- ParagraphList const & pars = text_->paragraphs();
- Inset const & inset = text_->inset();
- double const dh = defaultRowHeight();
-
- // is it a top line?
- if (row.pos() == 0 && topBottomSpace) {
- BufferParams const & bufparams = bv_->buffer().params();
- // some parskips VERY EASY IMPLEMENTATION
- if (bufparams.paragraph_separation == BufferParams::ParagraphSkipSeparation
- && !inset.getLayout().parbreakIsNewline()
- && !par.layout().parbreak_is_newline
- && row.pit() > 0
- && ((layout.isParagraph() && par.getDepth() == 0)
- || (pars[row.pit() - 1].layout().isParagraph()
- && pars[row.pit() - 1].getDepth() == 0))) {
- maxasc += bufparams.getDefSkip().inPixels(*bv_);
- }
-
- if (par.params().startOfAppendix())
- maxasc += int(3 * dh);
-
- // special code for the top label
- if (layout.labelIsAbove()
- && (!layout.isParagraphGroup() || text_->isFirstInSequence(row.pit()))
- && !par.labelString().empty()) {
- FontInfo labelfont = text_->labelFont(par);
- FontMetrics const & lfm = theFontMetrics(labelfont);
- labeladdon = int(
- lfm.maxHeight()
- * layout.spacing.getValue()
- * text_->spacing(par)
- + (layout.topsep + layout.labelbottomsep) * dh);
- }
-
- // Add the layout spaces, for example before and after
- // a section, or between the items of a itemize or enumerate
- // environment.
-
- pit_type prev = text_->depthHook(row.pit(), par.getDepth());
- Paragraph const & prevpar = pars[prev];
- if (prev != row.pit()
- && prevpar.layout() == layout
- && prevpar.getDepth() == par.getDepth()
- && prevpar.getLabelWidthString()
- == par.getLabelWidthString()) {
- layoutasc = layout.itemsep * dh;
- } else if (row.pit() != 0 || row.pos() != 0) {
- if (layout.topsep > 0)
- layoutasc = layout.topsep * dh;
- }
-
- prev = text_->outerHook(row.pit());
- if (prev != pit_type(pars.size())) {
- maxasc += int(pars[prev].layout().parsep * dh);
- } else if (row.pit() != 0) {
- Paragraph const & prevpar = pars[row.pit() - 1];
- if (prevpar.getDepth() != 0 ||
- prevpar.layout() == layout) {
- maxasc += int(layout.parsep * dh);
- }
- }
- }
-
- // is it a bottom line?
- if (row.endpos() >= par.size() && topBottomSpace) {
- // add the layout spaces, for example before and after
- // a section, or between the items of a itemize or enumerate
- // environment
- pit_type nextpit = row.pit() + 1;
- if (nextpit != pit_type(pars.size())) {
- pit_type cpit = row.pit();
-
- if (pars[cpit].getDepth() > pars[nextpit].getDepth()) {
- double usual = pars[cpit].layout().bottomsep * dh;
- double unusual = 0;
- cpit = text_->depthHook(cpit, pars[nextpit].getDepth());
- if (pars[cpit].layout() != pars[nextpit].layout()
- || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
- unusual = pars[cpit].layout().bottomsep * dh;
- layoutdesc = max(unusual, usual);
- } else if (pars[cpit].getDepth() == pars[nextpit].getDepth()) {
- if (pars[cpit].layout() != pars[nextpit].layout()
- || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
- layoutdesc = int(pars[cpit].layout().bottomsep * dh);
- }
- }
- }
-
- // incalculate the layout spaces
- maxasc += int(layoutasc * 2 / (2 + pars[row.pit()].getDepth()));
- maxdes += int(layoutdesc * 2 / (2 + pars[row.pit()].getDepth()));
-
- row.dimension().asc = maxasc + labeladdon;
+ row.dimension().asc = maxasc;
row.dimension().des = maxdes;
}
LYXERR(Debug::DEBUG, "x: " << x << " y: " << y << " pit: " << pit);
- InsetList::const_iterator iit = par.insetList().begin();
- InsetList::const_iterator iend = par.insetList().end();
- for (; iit != iend; ++iit) {
- Inset * inset = iit->inset;
-
- LYXERR(Debug::DEBUG, "examining inset " << inset);
+ for (auto const & it : par.insetList()) {
+ LYXERR(Debug::DEBUG, "examining inset " << it.inset);
- if (!insetCache.has(inset)) {
- LYXERR(Debug::DEBUG, "inset has no cached position");
- return 0;
- }
-
- Dimension const & dim = insetCache.dim(inset);
- Point p = insetCache.xy(inset);
-
- LYXERR(Debug::DEBUG, "xo: " << p.x_ << "..." << p.x_ + dim.wid
- << " yo: " << p.y_ - dim.asc << "..." << p.y_ + dim.des);
-
- if (x >= p.x_ && x <= p.x_ + dim.wid
- && y >= p.y_ - dim.asc && y <= p.y_ + dim.des) {
- LYXERR(Debug::DEBUG, "Hit inset: " << inset);
- return const_cast<InsetList::InsetTable *>(&(*iit));
+ if (insetCache.covers(it.inset, x, y)) {
+ LYXERR(Debug::DEBUG, "Hit inset: " << it.inset);
+ return const_cast<InsetList::InsetTable *>(&it);
}
}
}
-Row::const_iterator const
-TextMetrics::findRowElement(Row const & row, pos_type const pos,
- bool const boundary, double & x) const
-{
- /**
- * When boundary is true, position i is in the row element (pos, endpos)
- * if
- * pos < i <= endpos
- * whereas, when boundary is false, the test is
- * pos <= i < endpos
- * The correction below allows to handle both cases.
- */
- int const boundary_corr = (boundary && pos) ? -1 : 0;
-
- x = row.left_margin;
-
- /** Early return in trivial cases
- * 1) the row is empty
- * 2) the position is the left-most position of the row; there
- * is a quirk here however: if the first element is virtual
- * (end-of-par marker for example), then we have to look
- * closer
- */
- if (row.empty()
- || (pos == row.begin()->left_pos() && !boundary
- && !row.begin()->isVirtual()))
- return row.begin();
-
- Row::const_iterator cit = row.begin();
- for ( ; cit != row.end() ; ++cit) {
- /** Look whether the cursor is inside the element's
- * span. Note that it is necessary to take the
- * boundary into account, and to accept virtual
- * elements, which have pos == endpos.
- */
- if (pos + boundary_corr >= cit->pos
- && (pos + boundary_corr < cit->endpos || cit->isVirtual())) {
- x += cit->pos2x(pos);
- break;
- }
- x += cit->full_width();
- }
-
- if (cit == row.end())
- --cit;
-
- return cit;
-}
-
-
int TextMetrics::cursorX(CursorSlice const & sl,
bool boundary) const
{
pos_type const pos = sl.pos();
double x = 0;
- findRowElement(row, pos, boundary, x);
+ row.findElement(pos, boundary, x);
return int(x);
}
if (!par.params().leftIndent().zero())
l_margin += par.params().leftIndent().inPixels(max_width, lfm.em());
- LyXAlignment align;
-
- if (par.params().align() == LYX_ALIGN_LAYOUT)
- align = layout.align;
- else
- align = par.params().align();
+ LyXAlignment align = par.getAlign();
// set the correct parindent
if (pos == 0
return;
}
- BufferParams const & bparams = bv_->buffer().params();
int const ww = bv_->workHeight();
Cursor const & cur = bv_->cursor();
DocIterator sel_beg = cur.selectionBegin();
}
// Row signature; has row changed since last paint?
- row.setCrc(pm.computeRowSignature(row, bparams));
+ row.setCrc(pm.computeRowSignature(row, *bv_));
bool row_has_changed = row.changed()
|| bv_->hadHorizScrollOffset(text_, pit, row.pos());
rp.paintAppendix();
rp.paintDepthBar();
rp.paintChangeBar();
- bool const is_rtl = text_->isRTL(text_->getPar(pit));
- if (i == 0 && !is_rtl)
+ if (i == 0 && !row.isRTL())
rp.paintFirst();
- if (i == nrows - 1 && is_rtl)
+ if (i == nrows - 1 && row.isRTL())
rp.paintLast();
rp.paintText();
- if (i == nrows - 1 && !is_rtl)
+ if (i == nrows - 1 && !row.isRTL())
rp.paintLast();
- if (i == 0 && is_rtl)
+ if (i == 0 && row.isRTL())
rp.paintFirst();
rp.paintTooLargeMarks(row_x + row.left_x() < 0,
row_x + row.right_x() > bv_->workWidth());
DocIterator wordStart = bvcur;
wordStart.pos() -= word.length();
- // get position on screen of the word start and end
- //FIXME: Is it necessary to explicitly set this to false?
- wordStart.boundary(false);
- Point lxy = cur.bv().getPos(wordStart);
- Point rxy = cur.bv().getPos(bvcur);
-
// calculate dimensions of the word
Row row;
+ row.pit(bvcur.pit());
row.pos(wordStart.pos());
row.endpos(bvcur.pos());
- setRowHeight(row, false);
+ setRowHeight(row);
dim = row.dimension();
+
+ // get position on screen of the word start and end
+ //FIXME: Is it necessary to explicitly set this to false?
+ wordStart.boundary(false);
+ Point lxy = cur.bv().getPos(wordStart);
+ Point rxy = cur.bv().getPos(bvcur);
dim.wid = abs(rxy.x_ - lxy.x_);
// calculate position of word
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