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https://git.lyx.org/repos/lyx.git
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9bbe7251af
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@26427 a592a061-630c-0410-9148-cb99ea01b6c8
136 lines
2.6 KiB
C++
136 lines
2.6 KiB
C++
/**
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* \file Row.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 unknown
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* \author Lars Gullik Bjønnes
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* \author John Levon
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* \author André Pönitz
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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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* Metrics for an on-screen text row.
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*/
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#include <config.h>
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#include "Row.h"
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#include "DocIterator.h"
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#include "support/debug.h"
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namespace lyx {
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Row::Row()
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: separator(0), label_hfill(0), x(0),
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sel_beg(-1), sel_end(-1),
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left_margin_sel(false), right_margin_sel(false),
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changed_(false), crc_(0), pos_(0), end_(0)
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{}
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void Row::setCrc(size_type crc) const
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{
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changed_ = crc != crc_;
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crc_ = crc;
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}
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void Row::setDimension(Dimension const & dim)
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{
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dim_ = dim;
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}
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void Row::pos(pos_type p)
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{
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pos_ = p;
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}
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void Row::endpos(pos_type p)
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{
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end_ = p;
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}
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bool Row::isMarginSelected(bool left_margin, DocIterator const & beg,
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DocIterator const & end) const
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{
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pos_type const sel_pos = left_margin ? sel_beg : sel_end;
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pos_type const margin_pos = left_margin ? pos_ : end_;
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// Is the chosen margin selected ?
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if (sel_pos == margin_pos) {
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if (beg.pos() == end.pos())
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// This is a special case in which the space between after
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// pos i-1 and before pos i is selected, i.e. the margins
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// (see DocIterator::boundary_).
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return beg.boundary() && !end.boundary();
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else if (end.pos() == margin_pos)
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// If the selection ends around the margin, it is only
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// drawn if the cursor is after the margin.
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return !end.boundary();
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else if (beg.pos() == margin_pos)
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// If the selection begins around the margin, it is
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// only drawn if the cursor is before the margin.
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return beg.boundary();
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else
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return true;
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}
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return false;
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}
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void Row::setSelectionAndMargins(DocIterator const & beg,
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DocIterator const & end) const
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{
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setSelection(beg.pos(), end.pos());
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if (selection()) {
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right_margin_sel = isMarginSelected(false, beg, end);
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left_margin_sel = isMarginSelected(true, beg, end);
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}
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}
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void Row::setSelection(pos_type beg, pos_type end) const
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{
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if (pos_ >= beg && pos_ <= end)
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sel_beg = pos_;
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else if (beg > pos_ && beg <= end_)
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sel_beg = beg;
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else
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sel_beg = -1;
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if (end_ >= beg && end_ <= end)
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sel_end = end_;
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else if (end < end_ && end >= pos_)
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sel_end = end;
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else
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sel_end = -1;
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}
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bool Row::selection() const
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{
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return sel_beg != -1 && sel_end != -1;
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}
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void Row::dump(char const * s) const
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{
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LYXERR0(s << " pos: " << pos_ << " end: " << end_
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<< " width: " << dim_.wid
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<< " ascent: " << dim_.asc
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<< " descent: " << dim_.des);
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}
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} // namespace lyx
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