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https://git.lyx.org/repos/lyx.git
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00c39208ac
Instead of actually fixing the messiness of InsetInfo, let's just fix the symptom and avoid the access to Paragraph::id() that was crashing LyX every time updateBuffer/validate/metrics/draw did not happen in the right order. Fixes bug #12639.
166 lines
3.6 KiB
C++
166 lines
3.6 KiB
C++
/**
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* \file Paragraph.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 Angus Leeming
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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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*
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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 "ParagraphMetrics.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 "Font.h"
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#include "Layout.h"
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#include "LayoutEnums.h"
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#include "Paragraph.h"
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#include "TextClass.h"
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#include "frontends/FontMetrics.h"
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#include "support/lassert.h"
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#include "support/debug.h"
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#include <sstream>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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ParagraphMetrics::ParagraphMetrics(Paragraph const & par) :
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position_(-1), id_(par.id()), par_(&par)
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{}
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ParagraphMetrics & ParagraphMetrics::operator=(
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ParagraphMetrics const & pm)
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{
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rows_ = pm.rows_;
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dim_ = pm.dim_;
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par_ = pm.par_;
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position_ = pm.position_;
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return *this;
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}
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void ParagraphMetrics::reset(Paragraph const & par)
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{
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par_ = ∥
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dim_ = Dimension();
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//position_ = -1;
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}
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void ParagraphMetrics::setPosition(int position)
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{
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position_ = position;
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}
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Row const & ParagraphMetrics::getRow(pos_type pos, bool boundary) const
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{
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LBUFERR(!rows().empty());
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// If boundary is set we should return the row on which
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// the character before is inside.
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if (pos > 0 && boundary)
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--pos;
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RowList::const_iterator rit = rows_.end();
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RowList::const_iterator const begin = rows_.begin();
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for (--rit; rit != begin && rit->pos() > pos; --rit)
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;
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return *rit;
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}
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size_t ParagraphMetrics::pos2row(pos_type pos) const
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{
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LBUFERR(!rows().empty());
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RowList::const_iterator rit = rows_.end();
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RowList::const_iterator const begin = rows_.begin();
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for (--rit; rit != begin && rit->pos() > pos; --rit)
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;
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return rit - begin;
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}
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void ParagraphMetrics::dump() const
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{
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lyxerr << "Paragraph::dump: rows.size(): " << rows_.size() << endl;
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for (size_t i = 0; i != rows_.size(); ++i) {
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lyxerr << " row " << i << ": " << rows_[i];
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}
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}
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int ParagraphMetrics::rightMargin(BufferView const & bv) const
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{
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BufferParams const & params = bv.buffer().params();
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DocumentClass const & tclass = params.documentClass();
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frontend::FontMetrics const & fm = theFontMetrics(params.getFont());
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int const r_margin =
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bv.rightMargin()
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+ fm.signedWidth(tclass.rightmargin())
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+ fm.signedWidth(par_->layout().rightmargin)
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* 4 / (par_->getDepth() + 4);
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return r_margin;
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}
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// FIXME: this code seems bogus. Audit and rewrite (see bug #9860).
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bool ParagraphMetrics::hfillExpansion(Row const & row, pos_type pos) const
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{
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if (!par_->isHfill(pos))
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return false;
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LASSERT(pos >= row.pos() && pos < row.endpos(), return false);
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// expand at the end of a row only if there is another hfill on the same row
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if (pos == row.endpos() - 1) {
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for (pos_type i = row.pos(); i < pos; i++) {
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if (par_->isHfill(i))
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return true;
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}
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return false;
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}
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// expand at the beginning of a row only if it is the first row of a paragraph
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if (pos == row.pos())
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return pos == 0;
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// do not expand in some labels
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if (par_->layout().margintype != MARGIN_MANUAL && pos < par_->beginOfBody())
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return false;
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// if there is anything between the first char of the row and
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// the specified position that is neither a newline nor an hfill,
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// the hfill will be expanded, otherwise it won't
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for (pos_type i = row.pos(); i < pos; i++) {
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if (!par_->isNewline(i) && !par_->isEnvSeparator(i) && !par_->isHfill(i))
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return true;
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}
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return false;
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}
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} // namespace lyx
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