mirror of
https://git.lyx.org/repos/lyx.git
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2c2ae5ecd8
This reverts commit 08a3405181
.
2022 lines
58 KiB
C++
2022 lines
58 KiB
C++
/**
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* \file src/TextMetrics.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Asger Alstrup
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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* \author John Levon
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* \author André Pönitz
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* \author Dekel Tsur
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* \author Jürgen Vigna
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* \author Abdelrazak Younes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "TextMetrics.h"
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#include "Buffer.h"
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#include "BufferParams.h"
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#include "BufferView.h"
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#include "CoordCache.h"
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#include "Cursor.h"
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#include "CutAndPaste.h"
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#include "Layout.h"
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#include "LyXRC.h"
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#include "MetricsInfo.h"
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#include "ParagraphParameters.h"
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#include "RowPainter.h"
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#include "Session.h"
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#include "Text.h"
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#include "TextClass.h"
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#include "VSpace.h"
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#include "insets/InsetText.h"
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#include "mathed/MacroTable.h"
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#include "frontends/FontMetrics.h"
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#include "frontends/NullPainter.h"
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#include "support/debug.h"
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#include "support/lassert.h"
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#include "support/Changer.h"
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#include <stdlib.h>
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#include <cmath>
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using namespace std;
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namespace lyx {
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using frontend::FontMetrics;
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namespace {
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int numberOfLabelHfills(Paragraph const & par, Row const & row)
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{
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pos_type last = row.endpos() - 1;
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pos_type first = row.pos();
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// hfill *DO* count at the beginning of paragraphs!
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if (first) {
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while (first < last && par.isHfill(first))
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++first;
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}
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last = min(last, par.beginOfBody());
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int n = 0;
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for (pos_type p = first; p < last; ++p) {
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if (par.isHfill(p))
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++n;
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}
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return n;
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}
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// FIXME: this needs to be rewritten, probably by merging it into some
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// code that, besides counting, sets the active status of the space
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// inset in the row element.
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int numberOfHfills(Row const & row, ParagraphMetrics const & pm,
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pos_type const body_pos)
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{
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int n = 0;
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Row::const_iterator cit = row.begin();
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Row::const_iterator const end = row.end();
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for ( ; cit != end ; ++cit)
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if (cit->pos >= body_pos
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&& cit->inset && pm.hfillExpansion(row, cit->pos))
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++n;
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return n;
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}
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} // namespace
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/////////////////////////////////////////////////////////////////////
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//
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// TextMetrics
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//
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/////////////////////////////////////////////////////////////////////
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TextMetrics::TextMetrics(BufferView * bv, Text * text)
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: bv_(bv), text_(text)
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{
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LBUFERR(bv_);
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max_width_ = bv_->workWidth();
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dim_.wid = max_width_;
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dim_.asc = 10;
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dim_.des = 10;
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}
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bool TextMetrics::contains(pit_type pit) const
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{
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return par_metrics_.find(pit) != par_metrics_.end();
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}
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pair<pit_type, ParagraphMetrics const *> TextMetrics::first() const
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{
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ParMetricsCache::const_iterator it = par_metrics_.begin();
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return make_pair(it->first, &it->second);
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}
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pair<pit_type, ParagraphMetrics const *> TextMetrics::last() const
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{
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LBUFERR(!par_metrics_.empty());
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ParMetricsCache::const_reverse_iterator it = par_metrics_.rbegin();
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return make_pair(it->first, &it->second);
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}
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bool TextMetrics::isLastRow(Row const & row) const
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{
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ParagraphList const & pars = text_->paragraphs();
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return row.endpos() >= pars[row.pit()].size()
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&& row.pit() + 1 == pit_type(pars.size());
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}
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bool TextMetrics::isFirstRow(Row const & row) const
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{
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return row.pos() == 0 && row.pit() == 0;
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}
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void TextMetrics::setRowChanged(pit_type pit, pos_type pos)
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{
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for (auto & pm_pair : par_metrics_)
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if (pm_pair.first == pit)
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for (Row & row : pm_pair.second.rows())
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if (row.pos() == pos)
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row.changed(true);
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}
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ParagraphMetrics & TextMetrics::parMetrics(pit_type pit, bool redo)
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{
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ParMetricsCache::iterator pmc_it = par_metrics_.find(pit);
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if (pmc_it == par_metrics_.end()) {
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pmc_it = par_metrics_.insert(
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make_pair(pit, ParagraphMetrics(text_->getPar(pit)))).first;
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}
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if (pmc_it->second.rows().empty() && redo)
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redoParagraph(pit);
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return pmc_it->second;
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}
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ParagraphMetrics const & TextMetrics::parMetrics(pit_type pit) const
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{
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return const_cast<TextMetrics *>(this)->parMetrics(pit, true);
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}
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ParagraphMetrics & TextMetrics::parMetrics(pit_type pit)
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{
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return parMetrics(pit, true);
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}
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void TextMetrics::newParMetricsDown()
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{
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pair<pit_type, ParagraphMetrics> const & last = *par_metrics_.rbegin();
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pit_type const pit = last.first + 1;
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if (pit == int(text_->paragraphs().size()))
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return;
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// do it and update its position.
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redoParagraph(pit);
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par_metrics_[pit].setPosition(last.second.position()
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+ last.second.descent() + par_metrics_[pit].ascent());
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updatePosCache(pit);
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}
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void TextMetrics::newParMetricsUp()
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{
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pair<pit_type, ParagraphMetrics> const & first = *par_metrics_.begin();
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if (first.first == 0)
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return;
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pit_type const pit = first.first - 1;
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// do it and update its position.
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redoParagraph(pit);
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par_metrics_[pit].setPosition(first.second.position()
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- first.second.ascent() - par_metrics_[pit].descent());
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updatePosCache(pit);
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}
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bool TextMetrics::metrics(MetricsInfo const & mi, Dimension & dim, int min_width,
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bool const expand_on_multipars)
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{
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LBUFERR(mi.base.textwidth > 0);
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max_width_ = mi.base.textwidth;
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// backup old dimension.
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Dimension const old_dim = dim_;
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// reset dimension.
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dim_ = Dimension();
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dim_.wid = min_width;
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pit_type const npar = text_->paragraphs().size();
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if (npar > 1 && expand_on_multipars)
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// If there is more than one row, expand the text to
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// the full allowable width.
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dim_.wid = max_width_;
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//lyxerr << "TextMetrics::metrics: width: " << mi.base.textwidth
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// << " maxWidth: " << max_width_ << "\nfont: " << mi.base.font << endl;
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bool changed = false;
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int h = 0;
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for (pit_type pit = 0; pit != npar; ++pit) {
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// create rows, but do not set alignment yet
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changed |= redoParagraph(pit, false);
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ParagraphMetrics const & pm = par_metrics_[pit];
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h += pm.height();
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if (dim_.wid < pm.width())
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dim_.wid = pm.width();
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}
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// Now set alignment for all rows (the width might not have been known before).
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for (pit_type pit = 0; pit != npar; ++pit) {
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ParagraphMetrics & pm = par_metrics_[pit];
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for (Row & row : pm.rows())
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setRowAlignment(row, dim_.wid);
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}
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dim_.asc = par_metrics_[0].ascent();
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dim_.des = h - dim_.asc;
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//lyxerr << "dim_.wid " << dim_.wid << endl;
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//lyxerr << "dim_.asc " << dim_.asc << endl;
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//lyxerr << "dim_.des " << dim_.des << endl;
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changed |= dim_ != old_dim;
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dim = dim_;
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return changed;
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}
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void TextMetrics::updatePosCache(pit_type pit) const
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{
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frontend::NullPainter np;
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PainterInfo pi(bv_, np);
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drawParagraph(pi, pit, origin_.x_, par_metrics_[pit].position());
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}
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int TextMetrics::rightMargin(ParagraphMetrics const & pm) const
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{
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return text_->isMainText() ? pm.rightMargin(*bv_) : 0;
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}
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int TextMetrics::rightMargin(pit_type const pit) const
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{
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return text_->isMainText() ? par_metrics_[pit].rightMargin(*bv_) : 0;
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}
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void TextMetrics::applyOuterFont(Font & font) const
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{
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FontInfo lf(font_.fontInfo());
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lf.reduce(bv_->buffer().params().getFont().fontInfo());
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font.fontInfo().realize(lf);
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}
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Font TextMetrics::displayFont(pit_type pit, pos_type pos) const
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{
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LASSERT(pos >= 0, { static Font f; return f; });
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ParagraphList const & pars = text_->paragraphs();
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Paragraph const & par = pars[pit];
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Layout const & layout = par.layout();
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Buffer const & buffer = bv_->buffer();
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// FIXME: broken?
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BufferParams const & params = buffer.params();
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pos_type const body_pos = par.beginOfBody();
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// We specialize the 95% common case:
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if (!par.getDepth()) {
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Font f = par.getFontSettings(params, pos);
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if (!text_->isMainText())
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applyOuterFont(f);
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bool lab = layout.labeltype == LABEL_MANUAL && pos < body_pos;
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FontInfo const & lf = lab ? layout.labelfont : layout.font;
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FontInfo rlf = lab ? layout.reslabelfont : layout.resfont;
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// In case the default family has been customized
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if (lf.family() == INHERIT_FAMILY)
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rlf.setFamily(params.getFont().fontInfo().family());
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f.fontInfo().realize(rlf);
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return f;
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}
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// The uncommon case need not be optimized as much
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FontInfo const & layoutfont = pos < body_pos ?
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layout.labelfont : layout.font;
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Font font = par.getFontSettings(params, pos);
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font.fontInfo().realize(layoutfont);
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if (!text_->isMainText())
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applyOuterFont(font);
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// Realize against environment font information
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// NOTE: the cast to pit_type should be removed when pit_type
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// changes to a unsigned integer.
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if (pit < pit_type(pars.size()))
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font.fontInfo().realize(text_->outerFont(pit).fontInfo());
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// Realize with the fonts of lesser depth.
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font.fontInfo().realize(params.getFont().fontInfo());
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return font;
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}
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bool TextMetrics::isRTL(CursorSlice const & sl, bool boundary) const
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{
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if (!sl.text())
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return false;
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int correction = 0;
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if (boundary && sl.pos() > 0)
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correction = -1;
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return displayFont(sl.pit(), sl.pos() + correction).isVisibleRightToLeft();
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}
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bool TextMetrics::isRTLBoundary(pit_type pit, pos_type pos) const
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{
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// no RTL boundary at paragraph start
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if (pos == 0)
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return false;
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Font const & left_font = displayFont(pit, pos - 1);
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return isRTLBoundary(pit, pos, left_font);
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}
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// isRTLBoundary returns false on a real end-of-line boundary,
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// because otherwise the two boundary types get mixed up.
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// This is the whole purpose of this being in TextMetrics.
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bool TextMetrics::isRTLBoundary(pit_type pit, pos_type pos,
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Font const & font) const
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{
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if (// no RTL boundary at paragraph start
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pos == 0
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// if the metrics have not been calculated, then we are not
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// on screen and can safely ignore issues about boundaries.
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|| !contains(pit))
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return false;
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ParagraphMetrics const & pm = par_metrics_[pit];
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// no RTL boundary in empty paragraph
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if (pm.rows().empty())
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return false;
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pos_type const endpos = pm.getRow(pos - 1, false).endpos();
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pos_type const startpos = pm.getRow(pos, false).pos();
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// no RTL boundary at line start:
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// abc\n -> toggle to RTL -> abc\n (and not: abc\n|
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// | | )
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if (pos == startpos && pos == endpos) // start of cur row, end of prev row
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return false;
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Paragraph const & par = text_->getPar(pit);
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// no RTL boundary at line break:
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// abc|\n -> move right -> abc\n (and not: abc\n|
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// FED FED| FED )
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if (startpos == pos && endpos == pos && endpos != par.size()
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&& (par.isNewline(pos - 1)
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|| par.isEnvSeparator(pos - 1)
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|| par.isLineSeparator(pos - 1)
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|| par.isSeparator(pos - 1)))
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return false;
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bool const left = font.isVisibleRightToLeft();
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bool right;
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if (pos == par.size())
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right = par.isRTL(bv_->buffer().params());
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else
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right = displayFont(pit, pos).isVisibleRightToLeft();
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return left != right;
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}
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bool TextMetrics::redoParagraph(pit_type const pit, bool const align_rows)
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{
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Paragraph & par = text_->getPar(pit);
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// IMPORTANT NOTE: We pass 'false' explicitly in order to not call
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// redoParagraph() recursively inside parMetrics.
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Dimension old_dim = parMetrics(pit, false).dim();
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ParagraphMetrics & pm = par_metrics_[pit];
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pm.reset(par);
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Buffer & buffer = bv_->buffer();
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bool changed = false;
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// Check whether there are InsetBibItems that need fixing
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// FIXME: This check ought to be done somewhere else. It is the reason
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// why text_ is not const. But then, where else to do it?
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// Well, how can you end up with either (a) a biblio environment that
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// has no InsetBibitem, (b) a biblio environment with more than one
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// InsetBibitem or (c) a paragraph that has a bib item but is no biblio
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// environment? I think the answer is: when paragraphs are merged;
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// when layout is set; when material is pasted.
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if (par.brokenBiblio()) {
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Cursor & cur = const_cast<Cursor &>(bv_->cursor());
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// In some cases, we do not know how to record undo
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if (&cur.inset() == &text_->inset())
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cur.recordUndo(pit, pit);
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int const moveCursor = par.fixBiblio(buffer);
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// Is it necessary to update the cursor?
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if (&cur.inset() == &text_->inset() && cur.pit() == pit) {
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if (moveCursor > 0)
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cur.posForward();
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else if (moveCursor < 0 && cur.pos() >= -moveCursor)
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cur.posBackward();
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}
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}
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// Optimisation: this is used in the next two loops
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// so better to calculate that once here.
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int const right_margin = rightMargin(pm);
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// iterator pointing to paragraph to resolve macros
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DocIterator parPos = text_->macrocontextPosition();
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if (!parPos.empty())
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parPos.pit() = pit;
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else {
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LYXERR(Debug::INFO, "MacroContext not initialised!"
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<< " Going through the buffer again and hope"
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<< " the context is better then.");
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// FIXME audit updateBuffer calls
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// This should not be here, but it is not clear yet where else it
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// should be.
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bv_->buffer().updateBuffer();
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parPos = text_->macrocontextPosition();
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LBUFERR(!parPos.empty());
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parPos.pit() = pit;
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}
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// redo insets
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par.setBeginOfBody();
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Font const bufferfont = buffer.params().getFont();
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CoordCache::Insets & insetCache = bv_->coordCache().insets();
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for (auto const & e : par.insetList()) {
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// FIXME Doesn't this HAVE to be non-empty?
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// position already initialized?
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if (!parPos.empty()) {
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parPos.pos() = e.pos;
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// A macro template would normally not be visible
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// by itself. But the tex macro semantics allow
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// recursion, so we artifically take the context
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// after the macro template to simulate this.
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if (e.inset->lyxCode() == MATHMACRO_CODE)
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parPos.pos()++;
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}
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// If there is an end of paragraph marker, its size should be
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// substracted to the available width. The logic here is
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// almost the same as in breakRow, remember keep them in sync.
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int eop = 0;
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if (lyxrc.paragraph_markers && e.pos + 1 == par.size()
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&& size_type(pit + 1) < text_->paragraphs().size()) {
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Font f(text_->layoutFont(pit));
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// ¶ U+00B6 PILCROW SIGN
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eop = theFontMetrics(f).width(char_type(0x00B6));
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}
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// do the metric calculation
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Dimension dim;
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int const w = max_width_ - leftMargin(pit, e.pos)
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- right_margin - eop;
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Font const & font = e.inset->inheritFont() ?
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displayFont(pit, e.pos) : bufferfont;
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MacroContext mc(&buffer, parPos);
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MetricsInfo mi(bv_, font.fontInfo(), w, mc, e.pos == 0);
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e.inset->metrics(mi, dim);
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if (!insetCache.has(e.inset) || insetCache.dim(e.inset) != dim) {
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insetCache.add(e.inset, dim);
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changed = true;
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}
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}
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pos_type first = 0;
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size_t row_index = 0;
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bool need_new_row = false;
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// maximum pixel width of a row
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do {
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if (row_index == pm.rows().size())
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pm.rows().push_back(Row());
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else
|
|
pm.rows()[row_index] = Row();
|
|
Row & row = pm.rows()[row_index];
|
|
row.pit(pit);
|
|
row.pos(first);
|
|
need_new_row = breakRow(row, right_margin);
|
|
setRowHeight(row);
|
|
row.changed(true);
|
|
if ((row_index || row.endpos() < par.size() || row.right_boundary())
|
|
&& par.inInset().lyxCode() != CELL_CODE) {
|
|
/* If there is more than one row or the row has been
|
|
* broken by a display inset or a newline, expand the text
|
|
* to the full allowable width. This setting here is
|
|
* needed for the setRowAlignment() below.
|
|
* We do nothing when inside a table cell.
|
|
*/
|
|
if (dim_.wid < max_width_)
|
|
dim_.wid = max_width_;
|
|
}
|
|
if (align_rows)
|
|
setRowAlignment(row, max(dim_.wid, row.width()));
|
|
first = row.endpos();
|
|
++row_index;
|
|
|
|
pm.dim().wid = max(pm.dim().wid, row.width() + row.right_margin);
|
|
pm.dim().des += row.height();
|
|
} while (first < par.size() || need_new_row);
|
|
|
|
if (row_index < pm.rows().size())
|
|
pm.rows().resize(row_index);
|
|
|
|
// This type of margin can only be handled at the global paragraph level
|
|
if (par.layout().margintype == MARGIN_RIGHT_ADDRESS_BOX) {
|
|
int offset = 0;
|
|
if (par.isRTL(buffer.params())) {
|
|
// globally align the paragraph to the left.
|
|
int minleft = max_width_;
|
|
for (Row const & row : pm.rows())
|
|
minleft = min(minleft, row.left_margin);
|
|
offset = right_margin - minleft;
|
|
} else {
|
|
// globally align the paragraph to the right.
|
|
int maxwid = 0;
|
|
for (Row const & row : pm.rows())
|
|
maxwid = max(maxwid, row.width());
|
|
offset = max_width_ - right_margin - maxwid;
|
|
}
|
|
|
|
for (Row & row : pm.rows()) {
|
|
row.left_margin += offset;
|
|
row.dim().wid += offset;
|
|
}
|
|
}
|
|
|
|
// The space above and below the paragraph.
|
|
int const top = parTopSpacing(pit);
|
|
pm.rows().front().dim().asc += top;
|
|
int const bottom = parBottomSpacing(pit);
|
|
pm.rows().back().dim().des += bottom;
|
|
pm.dim().des += top + bottom;
|
|
|
|
pm.dim().asc += pm.rows()[0].ascent();
|
|
pm.dim().des -= pm.rows()[0].ascent();
|
|
|
|
// Top and bottom margin of the document (only at top-level)
|
|
// FIXME: It might be better to move this in another method
|
|
// specially tailored for the main text.
|
|
if (text_->isMainText()) {
|
|
if (pit == 0)
|
|
pm.dim().asc += bv_->topMargin();
|
|
ParagraphList const & pars = text_->paragraphs();
|
|
if (pit + 1 == pit_type(pars.size())) {
|
|
pm.dim().des += bv_->bottomMargin();
|
|
}
|
|
}
|
|
|
|
changed |= old_dim.height() != pm.dim().height();
|
|
|
|
return changed;
|
|
}
|
|
|
|
|
|
LyXAlignment TextMetrics::getAlign(Paragraph const & par, Row const & row) const
|
|
{
|
|
LyXAlignment align = par.getAlign(bv_->buffer().params());
|
|
|
|
// handle alignment inside tabular cells
|
|
Inset const & owner = text_->inset();
|
|
bool forced_block = false;
|
|
switch (owner.contentAlignment()) {
|
|
case LYX_ALIGN_BLOCK:
|
|
// In general block align is the default state, but here it is
|
|
// an explicit choice. Therefore it should not be overridden
|
|
// later.
|
|
forced_block = true;
|
|
// fall through
|
|
case LYX_ALIGN_CENTER:
|
|
case LYX_ALIGN_LEFT:
|
|
case LYX_ALIGN_RIGHT:
|
|
if (align == LYX_ALIGN_NONE || align == LYX_ALIGN_BLOCK)
|
|
align = owner.contentAlignment();
|
|
break;
|
|
default:
|
|
// unchanged (use align)
|
|
break;
|
|
}
|
|
|
|
// Display-style insets should always be on a centered row
|
|
if (Inset const * inset = par.getInset(row.pos())) {
|
|
if (inset->rowFlags() & Inset::Display) {
|
|
if (inset->rowFlags() & Inset::AlignLeft)
|
|
align = LYX_ALIGN_BLOCK;
|
|
else if (inset->rowFlags() & Inset::AlignRight)
|
|
align = LYX_ALIGN_RIGHT;
|
|
else
|
|
align = LYX_ALIGN_CENTER;
|
|
}
|
|
}
|
|
|
|
if (align == LYX_ALIGN_BLOCK) {
|
|
// If this row has been broken abruptly by a display inset, or
|
|
// it is the end of the paragraph, or the user requested we
|
|
// not justify stuff, then don't stretch.
|
|
// A forced block alignment can only be overridden the 'no
|
|
// justification on screen' setting.
|
|
if ((row.flushed() && !forced_block)
|
|
|| !bv_->buffer().params().justification)
|
|
align = row.isRTL() ? LYX_ALIGN_RIGHT : LYX_ALIGN_LEFT;
|
|
}
|
|
|
|
return align;
|
|
}
|
|
|
|
|
|
void TextMetrics::setRowAlignment(Row & row, int width) const
|
|
{
|
|
row.label_hfill = 0;
|
|
row.separator = 0;
|
|
|
|
Paragraph const & par = text_->getPar(row.pit());
|
|
|
|
int const w = width - row.right_margin - row.width();
|
|
// FIXME: put back this assertion when the crash on new doc is solved.
|
|
//LASSERT(w >= 0, /**/);
|
|
|
|
// is there a manual margin with a manual label
|
|
Layout const & layout = par.layout();
|
|
|
|
int nlh = 0;
|
|
if (layout.margintype == MARGIN_MANUAL
|
|
&& layout.labeltype == LABEL_MANUAL) {
|
|
/// We might have real hfills in the label part
|
|
nlh = numberOfLabelHfills(par, row);
|
|
|
|
// A manual label par (e.g. List) has an auto-hfill
|
|
// between the label text and the body of the
|
|
// paragraph too.
|
|
// But we don't want to do this auto hfill if the par
|
|
// is empty.
|
|
if (!par.empty())
|
|
++nlh;
|
|
|
|
if (nlh && !par.getLabelWidthString().empty())
|
|
row.label_hfill = labelFill(row) / double(nlh);
|
|
}
|
|
|
|
// are there any hfills in the row?
|
|
ParagraphMetrics const & pm = par_metrics_[row.pit()];
|
|
int nh = numberOfHfills(row, pm, par.beginOfBody());
|
|
int hfill = 0;
|
|
int hfill_rem = 0;
|
|
|
|
// We don't have to look at the alignment if the row is already
|
|
// larger then the permitted width as then we force the
|
|
// LEFT_ALIGN'edness!
|
|
if (int(row.width()) >= max_width_)
|
|
return;
|
|
|
|
if (nh == 0) {
|
|
// Common case : there is no hfill, and the alignment will be
|
|
// meaningful
|
|
switch (getAlign(par, row)) {
|
|
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.dim().wid += w;
|
|
}
|
|
break;
|
|
case LYX_ALIGN_LEFT:
|
|
// a displayed inset that is flushed
|
|
if (Inset const * inset = par.getInset(row.pos())) {
|
|
row.left_margin += inset->indent(*bv_);
|
|
row.dim().wid += inset->indent(*bv_);
|
|
}
|
|
break;
|
|
case LYX_ALIGN_RIGHT:
|
|
if (Inset const * inset = par.getInset(row.pos())) {
|
|
int const new_w = max(w - inset->indent(*bv_), 0);
|
|
row.left_margin += new_w;
|
|
row.dim().wid += new_w;
|
|
} else {
|
|
row.left_margin += w;
|
|
row.dim().wid += w;
|
|
}
|
|
break;
|
|
case LYX_ALIGN_CENTER:
|
|
row.dim().wid += w / 2;
|
|
row.left_margin += w / 2;
|
|
break;
|
|
case LYX_ALIGN_NONE:
|
|
case LYX_ALIGN_LAYOUT:
|
|
case LYX_ALIGN_SPECIAL:
|
|
case LYX_ALIGN_DECIMAL:
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Case nh > 0. There are hfill separators.
|
|
hfill = w / nh;
|
|
hfill_rem = w % nh;
|
|
row.dim().wid += w;
|
|
// Set size of hfill insets
|
|
pos_type const endpos = row.endpos();
|
|
pos_type body_pos = par.beginOfBody();
|
|
if (body_pos > 0
|
|
&& (body_pos > endpos || !par.isLineSeparator(body_pos - 1)))
|
|
body_pos = 0;
|
|
|
|
CoordCache::Insets & insetCache = bv_->coordCache().insets();
|
|
for (Row::Element & e : row) {
|
|
if (row.label_hfill && e.endpos == body_pos
|
|
&& e.type == Row::SPACE)
|
|
e.dim.wid -= int(row.label_hfill * (nlh - 1));
|
|
if (e.inset && pm.hfillExpansion(row, e.pos)) {
|
|
if (e.pos >= body_pos) {
|
|
e.dim.wid += hfill;
|
|
--nh;
|
|
if (nh == 0)
|
|
e.dim.wid += hfill_rem;
|
|
} else
|
|
e.dim.wid += int(row.label_hfill);
|
|
// Cache the inset dimension.
|
|
insetCache.add(e.inset, e.dim);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
int TextMetrics::labelFill(Row const & row) const
|
|
{
|
|
Paragraph const & par = text_->getPar(row.pit());
|
|
LBUFERR(par.beginOfBody() > 0 || par.isEnvSeparator(0));
|
|
|
|
int w = 0;
|
|
// iterate over elements before main body (except the last one,
|
|
// which is extra space).
|
|
for (Row::Element const & e : row) {
|
|
if (e.endpos >= par.beginOfBody())
|
|
break;
|
|
w += e.dim.wid;
|
|
}
|
|
|
|
docstring const & label = par.params().labelWidthString();
|
|
if (label.empty())
|
|
return 0;
|
|
|
|
FontMetrics const & fm
|
|
= theFontMetrics(text_->labelFont(par));
|
|
|
|
return max(0, fm.width(label) - w);
|
|
}
|
|
|
|
|
|
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 {
|
|
|
|
/**
|
|
* Calling Text::getFont is slow. While rebreaking we scan a
|
|
* paragraph from left to right calling getFont for every char. This
|
|
* simple class address this problem by hidding an optimization trick
|
|
* (not mine btw -AB): the font is reused in the whole font span. The
|
|
* class handles transparently the "hidden" (not part of the fontlist)
|
|
* label font (as getFont does).
|
|
**/
|
|
class FontIterator
|
|
{
|
|
public:
|
|
///
|
|
FontIterator(TextMetrics const & tm,
|
|
Paragraph const & par, pit_type pit, pos_type pos)
|
|
: tm_(tm), par_(par), pit_(pit), pos_(pos),
|
|
font_(tm.displayFont(pit, pos)),
|
|
endspan_(par.fontSpan(pos).last),
|
|
bodypos_(par.beginOfBody())
|
|
{}
|
|
|
|
///
|
|
Font const & operator*() const { return font_; }
|
|
|
|
///
|
|
FontIterator & operator++()
|
|
{
|
|
++pos_;
|
|
if (pos_ < par_.size() && (pos_ > endspan_ || pos_ == bodypos_)) {
|
|
font_ = tm_.displayFont(pit_, pos_);
|
|
endspan_ = par_.fontSpan(pos_).last;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
///
|
|
Font * operator->() { return &font_; }
|
|
|
|
private:
|
|
///
|
|
TextMetrics const & tm_;
|
|
///
|
|
Paragraph const & par_;
|
|
///
|
|
pit_type pit_;
|
|
///
|
|
pos_type pos_;
|
|
///
|
|
Font font_;
|
|
///
|
|
pos_type endspan_;
|
|
///
|
|
pos_type bodypos_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
/** 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;
|
|
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.
|
|
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))
|
|
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));
|
|
} else
|
|
row.add(i, c, *fi, par.lookupChange(i));
|
|
|
|
// 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() & Inset::BreakBefore)
|
|
|| (prevInset && prevInset->rowFlags() & Inset::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() & Inset::RowAfter
|
|
|| (prevInset->rowFlags() & Inset::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
|
|
&& 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);
|
|
|
|
// 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(body_pos, 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
|
|
{
|
|
Paragraph const & par = text_->getPar(pit);
|
|
Layout const & layout = par.layout();
|
|
|
|
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 & prevpar2 = pars[pit - 1];
|
|
if (prevpar2.getDepth() != 0 || prevpar2.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);
|
|
|
|
// Initial value for ascent (useful if row is empty).
|
|
Font const font = displayFont(row.pit(), row.pos());
|
|
FontMetrics const & fm = theFontMetrics(font);
|
|
int maxasc = int(fm.maxAscent() * spacing_val);
|
|
int maxdes = int(fm.maxDescent() * spacing_val);
|
|
|
|
// Take label string into account (useful if labelfont is large)
|
|
if (row.pos() == 0 && layout.labelIsInline()) {
|
|
FontInfo const labelfont = text_->labelFont(par);
|
|
FontMetrics const & lfm = theFontMetrics(labelfont);
|
|
maxasc = max(maxasc, int(lfm.maxAscent() * spacing_val));
|
|
maxdes = max(maxdes, int(lfm.maxDescent() * spacing_val));
|
|
}
|
|
|
|
// Find the ascent/descent of the row contents
|
|
for (Row::Element const & e : row) {
|
|
if (e.inset) {
|
|
maxasc = max(maxasc, e.dim.ascent());
|
|
maxdes = max(maxdes, e.dim.descent());
|
|
} else {
|
|
FontMetrics const & fm2 = theFontMetrics(e.font);
|
|
maxasc = max(maxasc, int(fm2.maxAscent() * spacing_val));
|
|
maxdes = max(maxdes, int(fm2.maxDescent() * spacing_val));
|
|
}
|
|
}
|
|
|
|
// This is nicer with box insets
|
|
++maxasc;
|
|
++maxdes;
|
|
|
|
row.dim().asc = maxasc;
|
|
row.dim().des = maxdes;
|
|
}
|
|
|
|
|
|
// x is an absolute screen coord
|
|
// returns the column near the specified x-coordinate of the row
|
|
// x is set to the real beginning of this column
|
|
pos_type TextMetrics::getPosNearX(Row const & row, int & x,
|
|
bool & boundary) const
|
|
{
|
|
//LYXERR0("getPosNearX(" << x << ") row=" << row);
|
|
/// For the main Text, it is possible that this pit is not
|
|
/// yet in the CoordCache when moving cursor up.
|
|
/// x Paragraph coordinate is always 0 for main text anyway.
|
|
int const xo = origin_.x_;
|
|
x -= xo;
|
|
|
|
// Adapt to cursor row scroll offset if applicable.
|
|
int const offset = bv_->horizScrollOffset(text_, row.pit(), row.pos());
|
|
x += offset;
|
|
|
|
pos_type pos = row.pos();
|
|
boundary = false;
|
|
if (row.empty())
|
|
x = row.left_margin;
|
|
else if (x <= row.left_margin) {
|
|
pos = row.front().left_pos();
|
|
x = row.left_margin;
|
|
} else if (x >= row.width()) {
|
|
pos = row.back().right_pos();
|
|
x = row.width();
|
|
} else {
|
|
double w = row.left_margin;
|
|
Row::const_iterator cit = row.begin();
|
|
Row::const_iterator cend = row.end();
|
|
for ( ; cit != cend; ++cit) {
|
|
if (w <= x && w + cit->full_width() > x) {
|
|
int x_offset = int(x - w);
|
|
pos = cit->x2pos(x_offset);
|
|
x = int(x_offset + w);
|
|
break;
|
|
}
|
|
w += cit->full_width();
|
|
}
|
|
if (cit == row.end()) {
|
|
pos = row.back().right_pos();
|
|
x = row.width();
|
|
}
|
|
/** This tests for the case where the cursor is placed
|
|
* just before a font direction change. See comment on
|
|
* the boundary_ member in DocIterator.h to understand
|
|
* how boundary helps here.
|
|
*/
|
|
else if (pos == cit->endpos
|
|
&& ((!cit->isRTL() && cit + 1 != row.end()
|
|
&& (cit + 1)->isRTL())
|
|
|| (cit->isRTL() && cit != row.begin()
|
|
&& !(cit - 1)->isRTL())))
|
|
boundary = true;
|
|
}
|
|
|
|
/** This tests for the case where the cursor is set at the end
|
|
* of a row which has been broken due something else than a
|
|
* separator (a display inset or a forced breaking of the
|
|
* row). We know that there is a separator when the end of the
|
|
* row is larger than the end of its last element.
|
|
*/
|
|
if (!row.empty() && pos == row.back().endpos
|
|
&& row.back().endpos == row.endpos()) {
|
|
Inset const * inset = row.back().inset;
|
|
if (inset && (inset->lyxCode() == NEWLINE_CODE
|
|
|| inset->lyxCode() == SEPARATOR_CODE))
|
|
pos = row.back().pos;
|
|
else
|
|
boundary = row.right_boundary();
|
|
}
|
|
|
|
x += xo - offset;
|
|
//LYXERR0("getPosNearX ==> pos=" << pos << ", boundary=" << boundary);
|
|
|
|
return pos;
|
|
}
|
|
|
|
|
|
pos_type TextMetrics::x2pos(pit_type pit, int row, int x) const
|
|
{
|
|
// We play safe and use parMetrics(pit) to make sure the
|
|
// ParagraphMetrics will be redone and OK to use if needed.
|
|
// Otherwise we would use an empty ParagraphMetrics in
|
|
// upDownInText() while in selection mode.
|
|
ParagraphMetrics const & pm = parMetrics(pit);
|
|
|
|
LBUFERR(row < int(pm.rows().size()));
|
|
bool bound = false;
|
|
Row const & r = pm.rows()[row];
|
|
return getPosNearX(r, x, bound);
|
|
}
|
|
|
|
|
|
// y is screen coordinate
|
|
pit_type TextMetrics::getPitNearY(int y)
|
|
{
|
|
LASSERT(!text_->paragraphs().empty(), return -1);
|
|
LASSERT(!par_metrics_.empty(), return -1);
|
|
LYXERR(Debug::DEBUG, "y: " << y << " cache size: " << par_metrics_.size());
|
|
|
|
// look for highest numbered paragraph with y coordinate less than given y
|
|
pit_type pit = -1;
|
|
int yy = -1;
|
|
ParMetricsCache::const_iterator it = par_metrics_.begin();
|
|
ParMetricsCache::const_iterator et = par_metrics_.end();
|
|
ParMetricsCache::const_iterator last = et;
|
|
--last;
|
|
|
|
ParagraphMetrics const & pm = it->second;
|
|
|
|
if (y < it->second.position() - int(pm.ascent())) {
|
|
// We are looking for a position that is before the first paragraph in
|
|
// the cache (which is in priciple off-screen, that is before the
|
|
// visible part.
|
|
if (it->first == 0)
|
|
// We are already at the first paragraph in the inset.
|
|
return 0;
|
|
// OK, this is the paragraph we are looking for.
|
|
pit = it->first - 1;
|
|
newParMetricsUp();
|
|
return pit;
|
|
}
|
|
|
|
ParagraphMetrics const & pm_last = par_metrics_[last->first];
|
|
|
|
if (y >= last->second.position() + int(pm_last.descent())) {
|
|
// We are looking for a position that is after the last paragraph in
|
|
// the cache (which is in priciple off-screen), that is before the
|
|
// visible part.
|
|
pit = last->first + 1;
|
|
if (pit == int(text_->paragraphs().size()))
|
|
// We are already at the last paragraph in the inset.
|
|
return last->first;
|
|
// OK, this is the paragraph we are looking for.
|
|
newParMetricsDown();
|
|
return pit;
|
|
}
|
|
|
|
for (; it != et; ++it) {
|
|
LYXERR(Debug::DEBUG, "examining: pit: " << it->first
|
|
<< " y: " << it->second.position());
|
|
|
|
ParagraphMetrics const & pm2 = par_metrics_[it->first];
|
|
|
|
if (it->first >= pit && int(it->second.position()) - int(pm2.ascent()) <= y) {
|
|
pit = it->first;
|
|
yy = it->second.position();
|
|
}
|
|
}
|
|
|
|
LYXERR(Debug::DEBUG, "found best y: " << yy << " for pit: " << pit);
|
|
|
|
return pit;
|
|
}
|
|
|
|
|
|
Row const & TextMetrics::getPitAndRowNearY(int & y, pit_type & pit,
|
|
bool assert_in_view, bool up)
|
|
{
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
|
|
int yy = pm.position() - pm.rows().front().ascent();
|
|
LBUFERR(!pm.rows().empty());
|
|
RowList::const_iterator rit = pm.rows().begin();
|
|
RowList::const_iterator rlast = pm.rows().end();
|
|
--rlast;
|
|
for (; rit != rlast; yy += rit->height(), ++rit)
|
|
if (yy + rit->height() > y)
|
|
break;
|
|
|
|
if (assert_in_view) {
|
|
if (!up && yy + rit->height() > y) {
|
|
if (rit != pm.rows().begin()) {
|
|
y = yy;
|
|
--rit;
|
|
} else if (pit != 0) {
|
|
--pit;
|
|
newParMetricsUp();
|
|
ParagraphMetrics const & pm2 = par_metrics_[pit];
|
|
rit = pm2.rows().end();
|
|
--rit;
|
|
y = yy;
|
|
}
|
|
} else if (up && yy != y) {
|
|
if (rit != rlast) {
|
|
y = yy + rit->height();
|
|
++rit;
|
|
} else if (pit < int(text_->paragraphs().size()) - 1) {
|
|
++pit;
|
|
newParMetricsDown();
|
|
ParagraphMetrics const & pm2 = par_metrics_[pit];
|
|
rit = pm2.rows().begin();
|
|
y = pm2.position();
|
|
}
|
|
}
|
|
}
|
|
return *rit;
|
|
}
|
|
|
|
|
|
// x,y are absolute screen coordinates
|
|
// sets cursor recursively descending into nested editable insets
|
|
Inset * TextMetrics::editXY(Cursor & cur, int x, int y,
|
|
bool assert_in_view, bool up)
|
|
{
|
|
if (lyxerr.debugging(Debug::WORKAREA)) {
|
|
LYXERR0("TextMetrics::editXY(cur, " << x << ", " << y << ")");
|
|
cur.bv().coordCache().dump();
|
|
}
|
|
pit_type pit = getPitNearY(y);
|
|
LASSERT(pit != -1, return 0);
|
|
Row const & row = getPitAndRowNearY(y, pit, assert_in_view, up);
|
|
cur.pit() = pit;
|
|
|
|
// Do we cover an inset?
|
|
InsetList::Element * e = checkInsetHit(pit, x, y);
|
|
|
|
if (!e) {
|
|
// No inset, set position in the text
|
|
bool bound = false; // is modified by getPosNearX
|
|
cur.pos() = getPosNearX(row, x, bound);
|
|
cur.boundary(bound);
|
|
cur.setCurrentFont();
|
|
cur.setTargetX(x);
|
|
return 0;
|
|
}
|
|
|
|
Inset * inset = e->inset;
|
|
//lyxerr << "inset " << inset << " hit at x: " << x << " y: " << y << endl;
|
|
|
|
// Set position in front of inset
|
|
cur.pos() = e->pos;
|
|
cur.boundary(false);
|
|
cur.setTargetX(x);
|
|
|
|
// Try to descend recursively inside the inset.
|
|
Inset * edited = inset->editXY(cur, x, y);
|
|
// FIXME: it is not clear that the test on position is needed
|
|
// Remove it if/when semantics of editXY is clarified
|
|
if (cur.text() == text_ && cur.pos() == e->pos) {
|
|
// non-editable inset, set cursor after the inset if x is
|
|
// nearer to that position (bug 9628)
|
|
bool bound = false; // is modified by getPosNearX
|
|
cur.pos() = getPosNearX(row, x, bound);
|
|
cur.boundary(bound);
|
|
cur.setCurrentFont();
|
|
cur.setTargetX(x);
|
|
}
|
|
|
|
if (cur.top().text() == text_)
|
|
cur.setCurrentFont();
|
|
return edited;
|
|
}
|
|
|
|
|
|
void TextMetrics::setCursorFromCoordinates(Cursor & cur, int const x, int const y)
|
|
{
|
|
LASSERT(text_ == cur.text(), return);
|
|
pit_type const pit = getPitNearY(y);
|
|
LASSERT(pit != -1, return);
|
|
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
|
|
int yy = pm.position() - pm.rows().front().ascent();
|
|
LYXERR(Debug::DEBUG, "x: " << x << " y: " << y <<
|
|
" pit: " << pit << " yy: " << yy);
|
|
|
|
int r = 0;
|
|
LBUFERR(pm.rows().size());
|
|
for (; r < int(pm.rows().size()) - 1; ++r) {
|
|
Row const & row = pm.rows()[r];
|
|
if (int(yy + row.height()) > y)
|
|
break;
|
|
yy += row.height();
|
|
}
|
|
|
|
Row const & row = pm.rows()[r];
|
|
|
|
LYXERR(Debug::DEBUG, "row " << r << " from pos: " << row.pos());
|
|
|
|
bool bound = false;
|
|
int xx = x;
|
|
pos_type const pos = getPosNearX(row, xx, bound);
|
|
|
|
LYXERR(Debug::DEBUG, "setting cursor pit: " << pit << " pos: " << pos);
|
|
|
|
text_->setCursor(cur, pit, pos, true, bound);
|
|
// remember new position.
|
|
cur.setTargetX();
|
|
}
|
|
|
|
|
|
//takes screen x,y coordinates
|
|
InsetList::Element * TextMetrics::checkInsetHit(pit_type pit, int x, int y)
|
|
{
|
|
Paragraph const & par = text_->paragraphs()[pit];
|
|
CoordCache::Insets const & insetCache = bv_->coordCache().getInsets();
|
|
|
|
LYXERR(Debug::DEBUG, "x: " << x << " y: " << y << " pit: " << pit);
|
|
|
|
for (InsetList::Element const & e : par.insetList()) {
|
|
LYXERR(Debug::DEBUG, "examining inset " << e.inset);
|
|
|
|
if (insetCache.covers(e.inset, x, y)) {
|
|
LYXERR(Debug::DEBUG, "Hit inset: " << e.inset);
|
|
return const_cast<InsetList::Element *>(&e);
|
|
}
|
|
}
|
|
|
|
LYXERR(Debug::DEBUG, "No inset hit. ");
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
//takes screen x,y coordinates
|
|
Inset * TextMetrics::checkInsetHit(int x, int y)
|
|
{
|
|
pit_type const pit = getPitNearY(y);
|
|
LASSERT(pit != -1, return 0);
|
|
InsetList::Element * e = checkInsetHit(pit, x, y);
|
|
|
|
if (!e)
|
|
return 0;
|
|
|
|
return e->inset;
|
|
}
|
|
|
|
|
|
int TextMetrics::cursorX(CursorSlice const & sl,
|
|
bool boundary) const
|
|
{
|
|
LASSERT(sl.text() == text_, return 0);
|
|
|
|
ParagraphMetrics const & pm = par_metrics_[sl.pit()];
|
|
if (pm.rows().empty())
|
|
return 0;
|
|
Row const & row = pm.getRow(sl.pos(), boundary);
|
|
pos_type const pos = sl.pos();
|
|
|
|
double x = 0;
|
|
row.findElement(pos, boundary, x);
|
|
return int(x);
|
|
|
|
}
|
|
|
|
|
|
int TextMetrics::cursorY(CursorSlice const & sl, bool boundary) const
|
|
{
|
|
//lyxerr << "TextMetrics::cursorY: boundary: " << boundary << endl;
|
|
ParagraphMetrics const & pm = parMetrics(sl.pit());
|
|
if (pm.rows().empty())
|
|
return 0;
|
|
|
|
int h = 0;
|
|
h -= parMetrics(0).rows()[0].ascent();
|
|
for (pit_type pit = 0; pit < sl.pit(); ++pit) {
|
|
h += parMetrics(pit).height();
|
|
}
|
|
int pos = sl.pos();
|
|
if (pos && boundary)
|
|
--pos;
|
|
size_t const rend = pm.pos2row(pos);
|
|
for (size_t rit = 0; rit != rend; ++rit)
|
|
h += pm.rows()[rit].height();
|
|
h += pm.rows()[rend].ascent();
|
|
return h;
|
|
}
|
|
|
|
|
|
// the cursor set functions have a special mechanism. When they
|
|
// realize you left an empty paragraph, they will delete it.
|
|
|
|
bool TextMetrics::cursorHome(Cursor & cur)
|
|
{
|
|
LASSERT(text_ == cur.text(), return false);
|
|
ParagraphMetrics const & pm = par_metrics_[cur.pit()];
|
|
Row const & row = pm.getRow(cur.pos(),cur.boundary());
|
|
return text_->setCursor(cur, cur.pit(), row.pos());
|
|
}
|
|
|
|
|
|
bool TextMetrics::cursorEnd(Cursor & cur)
|
|
{
|
|
LASSERT(text_ == cur.text(), return false);
|
|
// if not on the last row of the par, put the cursor before
|
|
// the final space exept if I have a spanning inset or one string
|
|
// is so long that we force a break.
|
|
pos_type end = cur.textRow().endpos();
|
|
if (end == 0)
|
|
// empty text, end-1 is no valid position
|
|
return false;
|
|
bool boundary = false;
|
|
if (end != cur.lastpos()) {
|
|
if (!cur.paragraph().isLineSeparator(end-1)
|
|
&& !cur.paragraph().isNewline(end-1)
|
|
&& !cur.paragraph().isEnvSeparator(end-1))
|
|
boundary = true;
|
|
else
|
|
--end;
|
|
} else if (cur.paragraph().isEnvSeparator(end-1))
|
|
--end;
|
|
return text_->setCursor(cur, cur.pit(), end, true, boundary);
|
|
}
|
|
|
|
|
|
void TextMetrics::deleteLineForward(Cursor & cur)
|
|
{
|
|
LASSERT(text_ == cur.text(), return);
|
|
if (cur.lastpos() == 0) {
|
|
// Paragraph is empty, so we just go forward
|
|
text_->cursorForward(cur);
|
|
} else {
|
|
cur.resetAnchor();
|
|
cur.selection(true); // to avoid deletion
|
|
cursorEnd(cur);
|
|
cur.setSelection();
|
|
// What is this test for ??? (JMarc)
|
|
if (!cur.selection())
|
|
text_->deleteWordForward(cur);
|
|
else
|
|
cap::cutSelection(cur, false);
|
|
cur.checkBufferStructure();
|
|
}
|
|
}
|
|
|
|
|
|
int TextMetrics::leftMargin(pit_type pit) const
|
|
{
|
|
// the + 1 is useful when the paragraph is empty
|
|
return leftMargin(pit, text_->paragraphs()[pit].size() + 1);
|
|
}
|
|
|
|
|
|
int TextMetrics::leftMargin(pit_type const pit, pos_type const pos) const
|
|
{
|
|
ParagraphList const & pars = text_->paragraphs();
|
|
|
|
LASSERT(pit >= 0, return 0);
|
|
LASSERT(pit < int(pars.size()), return 0);
|
|
Paragraph const & par = pars[pit];
|
|
LASSERT(pos >= 0, return 0);
|
|
// We do not really care whether pos > par.size(), since we do not
|
|
// access the data. It can be actially useful, when querying the
|
|
// margin without indentation (see leftMargin(pit_type).
|
|
|
|
Buffer const & buffer = bv_->buffer();
|
|
//lyxerr << "TextMetrics::leftMargin: pit: " << pit << " pos: " << pos << endl;
|
|
DocumentClass const & tclass = buffer.params().documentClass();
|
|
Layout const & layout = par.layout();
|
|
FontMetrics const & bfm = theFontMetrics(buffer.params().getFont());
|
|
|
|
docstring parindent = layout.parindent;
|
|
|
|
int l_margin = 0;
|
|
|
|
if (text_->isMainText()) {
|
|
l_margin += bv_->leftMargin();
|
|
l_margin += bfm.signedWidth(tclass.leftmargin());
|
|
}
|
|
|
|
int depth = par.getDepth();
|
|
if (depth != 0) {
|
|
// find the next level paragraph
|
|
pit_type newpar = text_->outerHook(pit);
|
|
if (newpar != pit_type(pars.size())) {
|
|
if (pars[newpar].layout().isEnvironment()) {
|
|
int nestmargin = depth * nestMargin();
|
|
if (text_->isMainText())
|
|
nestmargin += changebarMargin();
|
|
l_margin = max(leftMargin(newpar), nestmargin);
|
|
// Remove the parindent that has been added
|
|
// if the paragraph was empty.
|
|
if (pars[newpar].empty() &&
|
|
buffer.params().paragraph_separation ==
|
|
BufferParams::ParagraphIndentSeparation) {
|
|
docstring pi = pars[newpar].layout().parindent;
|
|
l_margin -= bfm.signedWidth(pi);
|
|
}
|
|
}
|
|
if (tclass.isDefaultLayout(par.layout())
|
|
|| tclass.isPlainLayout(par.layout())) {
|
|
if (pars[newpar].params().noindent())
|
|
parindent.erase();
|
|
else
|
|
parindent = pars[newpar].layout().parindent;
|
|
}
|
|
}
|
|
}
|
|
|
|
// This happens after sections or environments in standard classes.
|
|
// We have to check the previous layout at same depth.
|
|
if (buffer.params().paragraph_separation ==
|
|
BufferParams::ParagraphSkipSeparation)
|
|
parindent.erase();
|
|
else if (pit > 0 && pars[pit - 1].getDepth() >= par.getDepth()) {
|
|
pit_type prev = text_->depthHook(pit, par.getDepth());
|
|
if (par.layout() == pars[prev].layout()) {
|
|
if (prev != pit - 1
|
|
&& pars[pit - 1].layout().nextnoindent)
|
|
parindent.erase();
|
|
} else if (pars[prev].layout().nextnoindent)
|
|
parindent.erase();
|
|
}
|
|
|
|
FontInfo const labelfont = text_->labelFont(par);
|
|
FontMetrics const & lfm = theFontMetrics(labelfont);
|
|
|
|
switch (layout.margintype) {
|
|
case MARGIN_DYNAMIC:
|
|
if (!layout.leftmargin.empty()) {
|
|
l_margin += bfm.signedWidth(layout.leftmargin);
|
|
}
|
|
if (!par.labelString().empty()) {
|
|
l_margin += lfm.signedWidth(layout.labelindent);
|
|
l_margin += lfm.width(par.labelString());
|
|
l_margin += lfm.width(layout.labelsep);
|
|
}
|
|
break;
|
|
|
|
case MARGIN_MANUAL: {
|
|
l_margin += lfm.signedWidth(layout.labelindent);
|
|
// The width of an empty par, even with manual label, should be 0
|
|
if (!par.empty() && pos >= par.beginOfBody()) {
|
|
if (!par.getLabelWidthString().empty()) {
|
|
docstring labstr = par.getLabelWidthString();
|
|
l_margin += lfm.width(labstr);
|
|
l_margin += lfm.width(layout.labelsep);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MARGIN_STATIC: {
|
|
l_margin += bfm.signedWidth(layout.leftmargin) * 4
|
|
/ (par.getDepth() + 4);
|
|
break;
|
|
}
|
|
|
|
case MARGIN_FIRST_DYNAMIC:
|
|
if (layout.labeltype == LABEL_MANUAL) {
|
|
// if we are at position 0, we are never in the body
|
|
if (pos > 0 && pos >= par.beginOfBody())
|
|
l_margin += lfm.signedWidth(layout.leftmargin);
|
|
else
|
|
l_margin += lfm.signedWidth(layout.labelindent);
|
|
} else if (pos != 0
|
|
// Special case to fix problems with
|
|
// theorems (JMarc)
|
|
|| (layout.labeltype == LABEL_STATIC
|
|
&& layout.latextype == LATEX_ENVIRONMENT
|
|
&& !text_->isFirstInSequence(pit))) {
|
|
l_margin += lfm.signedWidth(layout.leftmargin);
|
|
} else if (!layout.labelIsAbove()) {
|
|
l_margin += lfm.signedWidth(layout.labelindent);
|
|
l_margin += lfm.width(layout.labelsep);
|
|
l_margin += lfm.width(par.labelString());
|
|
}
|
|
break;
|
|
|
|
case MARGIN_RIGHT_ADDRESS_BOX:
|
|
// This is handled globally in redoParagraph().
|
|
break;
|
|
}
|
|
|
|
if (!par.params().leftIndent().zero())
|
|
l_margin += par.params().leftIndent().inPixels(max_width_, lfm.em());
|
|
|
|
LyXAlignment align = par.getAlign(bv_->buffer().params());
|
|
|
|
// set the correct parindent
|
|
if (pos == 0
|
|
&& (layout.labeltype == LABEL_NO_LABEL
|
|
|| layout.labeltype == LABEL_ABOVE
|
|
|| layout.labeltype == LABEL_CENTERED
|
|
|| (layout.labeltype == LABEL_STATIC
|
|
&& layout.latextype == LATEX_ENVIRONMENT
|
|
&& !text_->isFirstInSequence(pit)))
|
|
&& (align == LYX_ALIGN_BLOCK || align == LYX_ALIGN_LEFT)
|
|
&& !par.params().noindent()
|
|
// in some insets, paragraphs are never indented
|
|
&& !text_->inset().neverIndent()
|
|
// display style insets do not need indentation
|
|
&& !(!par.empty()
|
|
&& par.isInset(0)
|
|
&& par.getInset(0)->rowFlags() & Inset::Display)
|
|
&& (!(tclass.isDefaultLayout(par.layout())
|
|
|| tclass.isPlainLayout(par.layout()))
|
|
|| buffer.params().paragraph_separation
|
|
== BufferParams::ParagraphIndentSeparation)) {
|
|
/* use the parindent of the layout when the default
|
|
* indentation is used otherwise use the indentation set in
|
|
* the document settings
|
|
*/
|
|
if (buffer.params().getParIndent().empty())
|
|
l_margin += bfm.signedWidth(parindent);
|
|
else
|
|
l_margin += buffer.params().getParIndent().inPixels(max_width_, bfm.em());
|
|
}
|
|
|
|
return l_margin;
|
|
}
|
|
|
|
|
|
void TextMetrics::draw(PainterInfo & pi, int x, int y) const
|
|
{
|
|
if (par_metrics_.empty())
|
|
return;
|
|
|
|
origin_.x_ = x;
|
|
origin_.y_ = y;
|
|
|
|
y -= par_metrics_.begin()->second.ascent();
|
|
for (auto & pm_pair : par_metrics_) {
|
|
pit_type const pit = pm_pair.first;
|
|
ParagraphMetrics & pm = pm_pair.second;
|
|
y += pm.ascent();
|
|
// Save the paragraph position in the cache.
|
|
pm.setPosition(y);
|
|
drawParagraph(pi, pit, x, y);
|
|
y += pm.descent();
|
|
}
|
|
}
|
|
|
|
|
|
void TextMetrics::drawParagraph(PainterInfo & pi, pit_type const pit, int const x, int y) const
|
|
{
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
if (pm.rows().empty())
|
|
return;
|
|
size_t const nrows = pm.rows().size();
|
|
// Remember left and right margin for drawing math numbers
|
|
Changer changeleft = changeVar(pi.leftx, x + leftMargin(pit));
|
|
Changer changeright = changeVar(pi.rightx, x + width() - rightMargin(pit));
|
|
|
|
// Use fast lane in nodraw stage.
|
|
if (pi.pain.isNull()) {
|
|
for (size_t i = 0; i != nrows; ++i) {
|
|
|
|
Row const & row = pm.rows()[i];
|
|
// Adapt to cursor row scroll offset if applicable.
|
|
int row_x = x - bv_->horizScrollOffset(text_, pit, row.pos());
|
|
if (i)
|
|
y += row.ascent();
|
|
|
|
RowPainter rp(pi, *text_, row, row_x, y);
|
|
|
|
rp.paintOnlyInsets();
|
|
y += row.descent();
|
|
}
|
|
return;
|
|
}
|
|
|
|
int const ww = bv_->workHeight();
|
|
Cursor const & cur = bv_->cursor();
|
|
DocIterator sel_beg = cur.selectionBegin();
|
|
DocIterator sel_end = cur.selectionEnd();
|
|
bool selection = cur.selection()
|
|
// This is our text.
|
|
&& cur.text() == text_
|
|
// if the anchor is outside, this is not our selection
|
|
&& cur.normalAnchor().text() == text_
|
|
&& pit >= sel_beg.pit() && pit <= sel_end.pit();
|
|
|
|
// We store the begin and end pos of the selection relative to this par
|
|
DocIterator sel_beg_par = cur.selectionBegin();
|
|
DocIterator sel_end_par = cur.selectionEnd();
|
|
|
|
// We care only about visible selection.
|
|
if (selection) {
|
|
if (pit != sel_beg.pit()) {
|
|
sel_beg_par.pit() = pit;
|
|
sel_beg_par.pos() = 0;
|
|
}
|
|
if (pit != sel_end.pit()) {
|
|
sel_end_par.pit() = pit;
|
|
sel_end_par.pos() = sel_end_par.lastpos();
|
|
}
|
|
}
|
|
|
|
if (text_->isRTL(pit))
|
|
swap(pi.leftx, pi.rightx);
|
|
|
|
for (size_t i = 0; i != nrows; ++i) {
|
|
|
|
Row const & row = pm.rows()[i];
|
|
// Adapt to cursor row scroll offset if applicable.
|
|
int row_x = x - bv_->horizScrollOffset(text_, pit, row.pos());
|
|
if (i)
|
|
y += row.ascent();
|
|
|
|
// It is not needed to draw on screen if we are not inside.
|
|
bool const inside = (y + row.descent() >= 0
|
|
&& y - row.ascent() < ww);
|
|
if (!inside) {
|
|
// Inset positions have already been set in nodraw stage.
|
|
y += row.descent();
|
|
continue;
|
|
}
|
|
|
|
if (selection)
|
|
row.setSelectionAndMargins(sel_beg_par, sel_end_par);
|
|
else
|
|
row.clearSelectionAndMargins();
|
|
|
|
// The row knows nothing about the paragraph, so we have to check
|
|
// whether this row is the first or last and update the margins.
|
|
if (row.selection()) {
|
|
if (row.sel_beg == 0)
|
|
row.change(row.begin_margin_sel, sel_beg.pit() < pit);
|
|
if (row.sel_end == sel_end_par.lastpos())
|
|
row.change(row.end_margin_sel, sel_end.pit() > pit);
|
|
}
|
|
|
|
// Take this opportunity to spellcheck the row contents.
|
|
if (row.changed() && pi.do_spellcheck && lyxrc.spellcheck_continuously) {
|
|
text_->getPar(pit).spellCheck();
|
|
}
|
|
|
|
RowPainter rp(pi, *text_, row, row_x, y);
|
|
|
|
// Don't paint the row if a full repaint has not been requested
|
|
// and if it has not changed.
|
|
if (!pi.full_repaint && !row.changed()) {
|
|
// Paint only the insets if the text itself is
|
|
// unchanged.
|
|
rp.paintOnlyInsets();
|
|
row.changed(false);
|
|
y += row.descent();
|
|
continue;
|
|
}
|
|
|
|
// Clear background of this row if paragraph background was not
|
|
// 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() << ")="
|
|
<< width() << " x " << row.height());
|
|
pi.pain.fillRectangle(row_x, y - row.ascent(),
|
|
width(), row.height(), pi.background_color);
|
|
}
|
|
|
|
// Instrumentation for testing row cache (see also
|
|
// 12 lines lower):
|
|
if (lyxerr.debugging(Debug::PAINTING)
|
|
&& (row.selection() || pi.full_repaint || row.changed())) {
|
|
string const foreword = text_->isMainText() ? "main text redraw "
|
|
: "inset text redraw: ";
|
|
LYXERR0(foreword << "pit=" << pit << " row=" << i
|
|
<< (row.selection() ? " row_selection": "")
|
|
<< (pi.full_repaint ? " full_repaint" : "")
|
|
<< (row.changed() ? " row.changed" : ""));
|
|
}
|
|
|
|
// Backup full_repaint status and force full repaint
|
|
// for inner insets as the Row has been cleared out.
|
|
bool tmp = pi.full_repaint;
|
|
pi.full_repaint = true;
|
|
|
|
rp.paintSelection();
|
|
rp.paintAppendix();
|
|
rp.paintDepthBar();
|
|
if (row.needsChangeBar())
|
|
rp.paintChangeBar();
|
|
if (i == 0)
|
|
rp.paintFirst();
|
|
if (i == nrows - 1)
|
|
rp.paintLast();
|
|
rp.paintText();
|
|
rp.paintTooLargeMarks(row_x + row.left_x() < 0,
|
|
row_x + row.right_x() > bv_->workWidth());
|
|
y += row.descent();
|
|
|
|
#if 0
|
|
// This debug code shows on screen which rows are repainted.
|
|
// FIXME: since the updates related to caret blinking restrict
|
|
// the painter to a small rectangle, the numbers are not
|
|
// updated when this happens. Change the code in
|
|
// GuiWorkArea::Private::show/hideCaret if this is important.
|
|
static int count = 0;
|
|
++count;
|
|
FontInfo fi(sane_font);
|
|
fi.setSize(TINY_SIZE);
|
|
fi.setColor(Color_red);
|
|
pi.pain.text(row_x, y, convert<docstring>(count), fi);
|
|
#endif
|
|
|
|
// Restore full_repaint status.
|
|
pi.full_repaint = tmp;
|
|
|
|
row.changed(false);
|
|
}
|
|
|
|
//LYXERR(Debug::PAINTING, ".");
|
|
}
|
|
|
|
|
|
void TextMetrics::completionPosAndDim(Cursor const & cur, int & x, int & y,
|
|
Dimension & dim) const
|
|
{
|
|
DocIterator from = cur.bv().cursor();
|
|
DocIterator to = from;
|
|
text_->getWord(from.top(), to.top(), PREVIOUS_WORD);
|
|
|
|
// The vertical dimension of the word
|
|
Font const font = displayFont(cur.pit(), from.pos());
|
|
FontMetrics const & fm = theFontMetrics(font);
|
|
// the +1's below are related to the extra pixels added in setRowHeight
|
|
dim.asc = fm.maxAscent() + 1;
|
|
dim.des = fm.maxDescent() + 1;
|
|
|
|
// get position on screen of the word start and end
|
|
//FIXME: Is it necessary to explicitly set this to false?
|
|
from.boundary(false);
|
|
Point lxy = cur.bv().getPos(from);
|
|
Point rxy = cur.bv().getPos(to);
|
|
dim.wid = abs(rxy.x_ - lxy.x_);
|
|
|
|
// calculate position of word
|
|
y = lxy.y_;
|
|
x = min(rxy.x_, lxy.x_);
|
|
|
|
//lyxerr << "wid=" << dim.width() << " x=" << x << " y=" << y << " lxy.x_=" << lxy.x_ << " rxy.x_=" << rxy.x_ << " word=" << word << std::endl;
|
|
//lyxerr << " wordstart=" << wordStart << " bvcur=" << bvcur << " cur=" << cur << std::endl;
|
|
}
|
|
|
|
int defaultRowHeight()
|
|
{
|
|
return int(theFontMetrics(sane_font).maxHeight() * 1.2);
|
|
}
|
|
|
|
} // namespace lyx
|