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237c132c1e
- get rid of the cached Dimension. Text inset dimensions are saved in ParagraphMetrics and mathed maintain their own dimension where needed. - width(), ascent(), descent(): deleted. - dimension(): now needs a valid BufferView. - metrics(): now void. * BufferView::getCoveringInset(): simplify. * ParagraphMetrics(): now cache inset dimensions. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20420 a592a061-630c-0410-9148-cb99ea01b6c8
2138 lines
58 KiB
C++
2138 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 "Bidi.h"
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#include "Buffer.h"
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#include "buffer_funcs.h"
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#include "BufferParams.h"
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#include "BufferView.h"
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#include "bufferview_funcs.h"
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#include "Color.h"
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#include "CutAndPaste.h"
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#include "debug.h"
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#include "FontIterator.h"
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#include "FuncRequest.h"
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#include "Length.h"
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#include "LyXRC.h"
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#include "MetricsInfo.h"
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#include "paragraph_funcs.h"
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#include "ParagraphParameters.h"
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#include "ParIterator.h"
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#include "rowpainter.h"
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#include "Text.h"
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#include "Undo.h"
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#include "VSpace.h"
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#include "frontends/FontMetrics.h"
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#include "frontends/Painter.h"
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#include <boost/current_function.hpp>
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using std::make_pair;
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using std::max;
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using std::min;
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using std::endl;
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using std::pair;
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namespace lyx {
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using frontend::FontMetrics;
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namespace {
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int numberOfSeparators(Paragraph const & par, Row const & row)
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{
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pos_type const first = max(row.pos(), par.beginOfBody());
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pos_type const last = row.endpos() - 1;
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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.isSeparator(p))
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++n;
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}
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return n;
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}
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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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int numberOfHfills(Paragraph const & par, Row const & row)
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{
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pos_type const last = row.endpos();
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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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first = max(first, 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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} // namespace anon
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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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BOOST_ASSERT(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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//text_->updateLabels(bv->buffer());
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}
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bool TextMetrics::has(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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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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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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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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ParagraphMetrics & TextMetrics::parMetrics(pit_type pit,
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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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}
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return pmc_it->second;
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}
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int TextMetrics::parPosition(pit_type pit) const
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{
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pair<pit_type, ParagraphMetrics> first = *par_metrics_.begin();
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pair<pit_type, ParagraphMetrics> last = *par_metrics_.rbegin();
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if (pit < first.first)
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return -1000000;
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else if (pit > last.first)
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return +1000000;
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return par_metrics_[pit].position();
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}
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bool TextMetrics::metrics(MetricsInfo & mi, Dimension & dim, int min_width)
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{
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BOOST_ASSERT(mi.base.textwidth);
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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)
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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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unsigned int h = 0;
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for (pit_type pit = 0; pit != npar; ++pit) {
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changed |= redoParagraph(pit);
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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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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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int TextMetrics::rightMargin(ParagraphMetrics const & pm) const
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{
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return main_text_? pm.rightMargin(bv_->buffer()) : 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 main_text_? par_metrics_[pit].rightMargin(bv_->buffer()) : 0;
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}
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void TextMetrics::applyOuterFont(Font & font) const
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{
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Font lf(font_);
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lf.reduce(bv_->buffer().params().getFont());
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lf.realize(font);
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lf.setLanguage(font.language());
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font = lf;
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}
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Font TextMetrics::getDisplayFont(pit_type pit, pos_type pos) const
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{
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BOOST_ASSERT(pos >= 0);
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ParagraphList const & pars = text_->paragraphs();
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Paragraph const & par = pars[pit];
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LayoutPtr 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(buffer))
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applyOuterFont(f);
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bool lab = layout->labeltype == LABEL_MANUAL && pos < body_pos;
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Font const & lf = lab ? layout->labelfont : layout->font;
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Font 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() == Font::INHERIT_FAMILY)
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rlf.setFamily(params.getFont().family());
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return f.realize(rlf);
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}
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// The uncommon case need not be optimized as much
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Font 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.realize(layoutfont);
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if (!text_->isMainText(buffer))
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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.realize(outerFont(pit, pars));
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// Realize with the fonts of lesser depth.
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font.realize(params.getFont());
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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 (!lyxrc.rtl_support || !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 getDisplayFont(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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if (!lyxrc.rtl_support)
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return false;
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// no RTL boundary at line start
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if (pos == 0)
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return false;
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Paragraph const & par = text_->getPar(pit);
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bool left = getDisplayFont(pit, pos - 1).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 = getDisplayFont(pit, pos).isVisibleRightToLeft();
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return left != right;
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}
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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 (!lyxrc.rtl_support)
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return false;
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Paragraph const & par = text_->getPar(pit);
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bool 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 = getDisplayFont(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)
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{
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Paragraph & par = text_->getPar(pit);
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// IMPORTANT NOTE: We pass 'false' explicitely 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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BufferParams const & bparams = buffer.params();
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main_text_ = (text_ == &buffer.text());
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bool changed = false;
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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 or (b) a biblio environment with more than one
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// InsetBibitem? 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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int const moveCursor = par.checkBiblio(buffer.params().trackChanges);
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if (moveCursor > 0)
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const_cast<Cursor &>(bv_->cursor()).posRight();
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else if (moveCursor < 0) {
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Cursor & cursor = const_cast<Cursor &>(bv_->cursor());
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if (cursor.pos() >= -moveCursor)
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cursor.posLeft();
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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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// redo insets
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// FIXME: We should always use getFont(), see documentation of
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// noFontChange() in Inset.h.
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Font const bufferfont = buffer.params().getFont();
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InsetList::const_iterator ii = par.insetlist.begin();
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InsetList::const_iterator iend = par.insetlist.end();
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for (; ii != iend; ++ii) {
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Dimension dim;
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int const w = max_width_ - leftMargin(max_width_, pit, ii->pos)
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- right_margin;
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Font const & font = ii->inset->noFontChange() ?
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bufferfont : getDisplayFont(pit, ii->pos);
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MetricsInfo mi(bv_, font, w);
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ii->inset->metrics(mi, dim);
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Dimension const old_dim = pm.insetDimension(ii->inset);
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pm.setInsetDimension(ii->inset, dim);
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changed |= (old_dim != dim);
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}
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Cursor const & cur = bv_->cursor();
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DocIterator sel_beg = cur.selectionBegin();
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DocIterator sel_end = cur.selectionEnd();
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bool selection = cur.selection()
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// This is out text.
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&& cur.text() == text_
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// if the anchor is outside, this is not our selection
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&& cur.anchor().text() == text_
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&& pit >= sel_beg.pit() && pit <= sel_end.pit();
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// We care only about visible selection.
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if (selection) {
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if (pit != sel_beg.pit()) {
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sel_beg.pit() = pit;
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sel_beg.pos() = 0;
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}
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if (pit != sel_end.pit()) {
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sel_end.pit() = pit;
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sel_end.pos() = sel_end.lastpos();
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}
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}
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par.setBeginOfBody();
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pos_type first = 0;
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size_t row_index = 0;
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// maximum pixel width of a row
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int width = max_width_ - right_margin; // - leftMargin(max_width_, pit, row);
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do {
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Dimension dim;
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pos_type end = rowBreakPoint(width, pit, first);
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if (row_index || end < par.size())
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// If there is more than one row, expand the text to
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// the full allowable width. This setting here is needed
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// for the computeRowMetrics below().
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dim_.wid = max_width_;
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dim.wid = rowWidth(right_margin, pit, first, end);
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boost::tie(dim.asc, dim.des) = rowHeight(pit, first, end);
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if (row_index == pm.rows().size())
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pm.rows().push_back(Row());
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Row & row = pm.rows()[row_index];
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row.setChanged(false);
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row.pos(first);
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row.endpos(end);
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if (selection)
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row.setSelection(sel_beg.pos(), sel_end.pos());
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else
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row.setSelection(-1, -1);
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row.setDimension(dim);
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computeRowMetrics(pit, row);
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pm.computeRowSignature(row, bparams);
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first = end;
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++row_index;
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pm.dim().wid = std::max(pm.dim().wid, dim.wid);
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pm.dim().des += dim.height();
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} while (first < par.size());
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if (row_index < pm.rows().size())
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pm.rows().resize(row_index);
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// Make sure that if a par ends in newline, there is one more row
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// under it
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if (first > 0 && par.isNewline(first - 1)) {
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Dimension dim;
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dim.wid = rowWidth(right_margin, pit, first, first);
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boost::tie(dim.asc, dim.des) = rowHeight(pit, first, first);
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if (row_index == pm.rows().size())
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pm.rows().push_back(Row());
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Row & row = pm.rows()[row_index];
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row.setChanged(false);
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row.pos(first);
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row.endpos(first);
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row.setDimension(dim);
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computeRowMetrics(pit, row);
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pm.computeRowSignature(row, bparams);
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pm.dim().des += dim.height();
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}
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pm.dim().asc += pm.rows()[0].ascent();
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pm.dim().des -= pm.rows()[0].ascent();
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changed |= old_dim.height() != pm.dim().height();
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return changed;
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}
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void TextMetrics::computeRowMetrics(pit_type const pit,
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Row & row) const
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{
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row.label_hfill = 0;
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row.hfill = 0;
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row.separator = 0;
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Buffer & buffer = bv_->buffer();
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Paragraph const & par = text_->getPar(pit);
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double w = dim_.wid - row.width();
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// FIXME: put back this assertion when the crash on new doc is solved.
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//BOOST_ASSERT(w >= 0);
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//lyxerr << "\ndim_.wid " << dim_.wid << endl;
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//lyxerr << "row.width() " << row.width() << endl;
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//lyxerr << "w " << w << endl;
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bool const is_rtl = text_->isRTL(buffer, par);
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if (is_rtl)
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row.x = rightMargin(pit);
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else
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row.x = leftMargin(max_width_, pit, row.pos());
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// is there a manual margin with a manual label
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LayoutPtr const & layout = par.layout();
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if (layout->margintype == MARGIN_MANUAL
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&& layout->labeltype == LABEL_MANUAL) {
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/// We might have real hfills in the label part
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int nlh = numberOfLabelHfills(par, row);
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// A manual label par (e.g. List) has an auto-hfill
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// between the label text and the body of the
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|
// 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(pit, row) / double(nlh);
|
|
}
|
|
|
|
// are there any hfills in the row?
|
|
int const nh = numberOfHfills(par, row);
|
|
|
|
if (nh) {
|
|
if (w > 0)
|
|
row.hfill = w / nh;
|
|
// we don't have to look at the alignment if it is ALIGN_LEFT and
|
|
// if the row is already larger then the permitted width as then
|
|
// we force the LEFT_ALIGN'edness!
|
|
} else if (int(row.width()) < max_width_) {
|
|
// is it block, flushleft or flushright?
|
|
// set x how you need it
|
|
int align;
|
|
if (par.params().align() == LYX_ALIGN_LAYOUT)
|
|
align = layout->align;
|
|
else
|
|
align = par.params().align();
|
|
|
|
// Display-style insets should always be on a centred row
|
|
// The test on par.size() is to catch zero-size pars, which
|
|
// would trigger the assert in Paragraph::getInset().
|
|
//inset = par.size() ? par.getInset(row.pos()) : 0;
|
|
if (row.pos() < par.size()
|
|
&& par.isInset(row.pos()))
|
|
{
|
|
switch(par.getInset(row.pos())->display()) {
|
|
case Inset::AlignLeft:
|
|
align = LYX_ALIGN_BLOCK;
|
|
break;
|
|
case Inset::AlignCenter:
|
|
align = LYX_ALIGN_CENTER;
|
|
break;
|
|
case Inset::Inline:
|
|
case Inset::AlignRight:
|
|
// unchanged (use align)
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (align) {
|
|
case LYX_ALIGN_BLOCK: {
|
|
int const ns = numberOfSeparators(par, row);
|
|
bool disp_inset = false;
|
|
if (row.endpos() < par.size()) {
|
|
Inset const * in = par.getInset(row.endpos());
|
|
if (in)
|
|
disp_inset = in->display();
|
|
}
|
|
// If we have separators, this is not the last row of a
|
|
// par, does not end in newline, and is not row above a
|
|
// display inset... then stretch it
|
|
if (ns
|
|
&& row.endpos() < par.size()
|
|
&& !par.isNewline(row.endpos() - 1)
|
|
&& !disp_inset
|
|
) {
|
|
row.separator = w / ns;
|
|
//lyxerr << "row.separator " << row.separator << endl;
|
|
//lyxerr << "ns " << ns << endl;
|
|
} else if (is_rtl) {
|
|
row.x += w;
|
|
}
|
|
break;
|
|
}
|
|
case LYX_ALIGN_RIGHT:
|
|
row.x += w;
|
|
break;
|
|
case LYX_ALIGN_CENTER:
|
|
row.x += w / 2;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (is_rtl) {
|
|
pos_type body_pos = par.beginOfBody();
|
|
pos_type end = row.endpos();
|
|
|
|
if (body_pos > 0
|
|
&& (body_pos > end || !par.isLineSeparator(body_pos - 1)))
|
|
{
|
|
row.x += theFontMetrics(text_->getLabelFont(buffer, par)).
|
|
width(layout->labelsep);
|
|
if (body_pos <= end)
|
|
row.x += row.label_hfill;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
int TextMetrics::labelFill(pit_type const pit, Row const & row) const
|
|
{
|
|
Buffer & buffer = bv_->buffer();
|
|
Paragraph const & par = text_->getPar(pit);
|
|
|
|
pos_type last = par.beginOfBody();
|
|
BOOST_ASSERT(last > 0);
|
|
|
|
// -1 because a label ends with a space that is in the label
|
|
--last;
|
|
|
|
// a separator at this end does not count
|
|
if (par.isLineSeparator(last))
|
|
--last;
|
|
|
|
int w = 0;
|
|
for (pos_type i = row.pos(); i <= last; ++i)
|
|
w += singleWidth(pit, i);
|
|
|
|
docstring const & label = par.params().labelWidthString();
|
|
if (label.empty())
|
|
return 0;
|
|
|
|
FontMetrics const & fm
|
|
= theFontMetrics(text_->getLabelFont(buffer, par));
|
|
|
|
return max(0, fm.width(label) - w);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
// this needs special handling - only newlines count as a break point
|
|
pos_type addressBreakPoint(pos_type i, Paragraph const & par)
|
|
{
|
|
pos_type const end = par.size();
|
|
|
|
for (; i < end; ++i)
|
|
if (par.isNewline(i))
|
|
return i + 1;
|
|
|
|
return end;
|
|
}
|
|
|
|
};
|
|
|
|
|
|
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(max_width_, pit);
|
|
}
|
|
|
|
|
|
pit_type TextMetrics::rowBreakPoint(int width, pit_type const pit,
|
|
pit_type pos) const
|
|
{
|
|
Buffer & buffer = bv_->buffer();
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
Paragraph const & par = text_->getPar(pit);
|
|
pos_type const end = par.size();
|
|
if (pos == end || width < 0)
|
|
return end;
|
|
|
|
LayoutPtr const & layout = par.layout();
|
|
|
|
if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX)
|
|
return addressBreakPoint(pos, par);
|
|
|
|
pos_type const body_pos = par.beginOfBody();
|
|
|
|
|
|
// Now we iterate through until we reach the right margin
|
|
// or the end of the par, then choose the possible break
|
|
// nearest that.
|
|
|
|
int label_end = labelEnd(pit);
|
|
int const left = leftMargin(max_width_, pit, pos);
|
|
int x = left;
|
|
|
|
// pixel width since last breakpoint
|
|
int chunkwidth = 0;
|
|
|
|
FontIterator fi = FontIterator(*this, par, pit, pos);
|
|
pos_type point = end;
|
|
pos_type i = pos;
|
|
for ( ; i < end; ++i, ++fi) {
|
|
int thiswidth = pm.singleWidth(i, *fi);
|
|
|
|
// add the auto-hfill from label end to the body
|
|
if (body_pos && i == body_pos) {
|
|
FontMetrics const & fm = theFontMetrics(
|
|
text_->getLabelFont(buffer, par));
|
|
int add = fm.width(layout->labelsep);
|
|
if (par.isLineSeparator(i - 1))
|
|
add -= singleWidth(pit, i - 1);
|
|
|
|
add = std::max(add, label_end - x);
|
|
thiswidth += add;
|
|
}
|
|
|
|
x += thiswidth;
|
|
chunkwidth += thiswidth;
|
|
|
|
// break before a character that will fall off
|
|
// the right of the row
|
|
if (x >= width) {
|
|
// if no break before, break here
|
|
if (point == end || chunkwidth >= width - left) {
|
|
if (i > pos)
|
|
point = i;
|
|
else
|
|
point = i + 1;
|
|
|
|
}
|
|
// exit on last registered breakpoint:
|
|
break;
|
|
}
|
|
|
|
if (par.isNewline(i)) {
|
|
point = i + 1;
|
|
break;
|
|
}
|
|
// Break before...
|
|
if (i + 1 < end) {
|
|
if (par.isInset(i + 1) && par.getInset(i + 1)->display()) {
|
|
point = i + 1;
|
|
break;
|
|
}
|
|
// ...and after.
|
|
if (par.isInset(i) && par.getInset(i)->display()) {
|
|
point = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!par.isInset(i) || par.getInset(i)->isChar()) {
|
|
// some insets are line separators too
|
|
if (par.isLineSeparator(i)) {
|
|
// register breakpoint:
|
|
point = i + 1;
|
|
chunkwidth = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// maybe found one, but the par is short enough.
|
|
if (i == end && x < width)
|
|
point = end;
|
|
|
|
// manual labels cannot be broken in LaTeX. But we
|
|
// want to make our on-screen rendering of footnotes
|
|
// etc. still break
|
|
if (body_pos && point < body_pos)
|
|
point = body_pos;
|
|
|
|
return point;
|
|
}
|
|
|
|
|
|
int TextMetrics::rowWidth(int right_margin, pit_type const pit,
|
|
pos_type const first, pos_type const end) const
|
|
{
|
|
Buffer & buffer = bv_->buffer();
|
|
// get the pure distance
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
Paragraph const & par = text_->getPar(pit);
|
|
int w = leftMargin(max_width_, pit, first);
|
|
int label_end = labelEnd(pit);
|
|
|
|
pos_type const body_pos = par.beginOfBody();
|
|
pos_type i = first;
|
|
|
|
if (i < end) {
|
|
FontIterator fi = FontIterator(*this, par, pit, i);
|
|
for ( ; i < end; ++i, ++fi) {
|
|
if (body_pos > 0 && i == body_pos) {
|
|
FontMetrics const & fm = theFontMetrics(
|
|
text_->getLabelFont(buffer, par));
|
|
w += fm.width(par.layout()->labelsep);
|
|
if (par.isLineSeparator(i - 1))
|
|
w -= singleWidth(pit, i - 1);
|
|
w = max(w, label_end);
|
|
}
|
|
w += pm.singleWidth(i, *fi);
|
|
}
|
|
}
|
|
|
|
if (body_pos > 0 && body_pos >= end) {
|
|
FontMetrics const & fm = theFontMetrics(
|
|
text_->getLabelFont(buffer, par));
|
|
w += fm.width(par.layout()->labelsep);
|
|
if (end > 0 && par.isLineSeparator(end - 1))
|
|
w -= singleWidth(pit, end - 1);
|
|
w = max(w, label_end);
|
|
}
|
|
|
|
return w + right_margin;
|
|
}
|
|
|
|
|
|
boost::tuple<int, int> TextMetrics::rowHeight(pit_type const pit, pos_type const first,
|
|
pos_type const end) const
|
|
{
|
|
Paragraph const & par = text_->getPar(pit);
|
|
// get the maximum ascent and the maximum descent
|
|
double layoutasc = 0;
|
|
double layoutdesc = 0;
|
|
double const dh = defaultRowHeight();
|
|
|
|
// ok, let us initialize the maxasc and maxdesc value.
|
|
// Only the fontsize count. The other properties
|
|
// are taken from the layoutfont. Nicer on the screen :)
|
|
LayoutPtr const & layout = par.layout();
|
|
|
|
// as max get the first character of this row then it can
|
|
// increase but not decrease the height. Just some point to
|
|
// start with so we don't have to do the assignment below too
|
|
// often.
|
|
Buffer const & buffer = bv_->buffer();
|
|
Font font = getDisplayFont(pit, first);
|
|
Font::FONT_SIZE const tmpsize = font.size();
|
|
font = text_->getLayoutFont(buffer, pit);
|
|
Font::FONT_SIZE const size = font.size();
|
|
font.setSize(tmpsize);
|
|
|
|
Font labelfont = text_->getLabelFont(buffer, par);
|
|
|
|
FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
|
|
FontMetrics const & fontmetrics = theFontMetrics(font);
|
|
|
|
// these are minimum values
|
|
double const spacing_val = layout->spacing.getValue()
|
|
* text_->spacing(buffer, par);
|
|
//lyxerr << "spacing_val = " << spacing_val << endl;
|
|
int maxasc = int(fontmetrics.maxAscent() * spacing_val);
|
|
int maxdesc = int(fontmetrics.maxDescent() * spacing_val);
|
|
|
|
// insets may be taller
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
InsetList::const_iterator ii = par.insetlist.begin();
|
|
InsetList::const_iterator iend = par.insetlist.end();
|
|
for ( ; ii != iend; ++ii) {
|
|
Dimension const & dim = pm.insetDimension(ii->inset);
|
|
if (ii->pos >= first && ii->pos < end) {
|
|
maxasc = max(maxasc, dim.ascent());
|
|
maxdesc = max(maxdesc, dim.descent());
|
|
}
|
|
}
|
|
|
|
// Check if any custom fonts are larger (Asger)
|
|
// This is not completely correct, but we can live with the small,
|
|
// cosmetic error for now.
|
|
int labeladdon = 0;
|
|
|
|
Font::FONT_SIZE maxsize =
|
|
par.highestFontInRange(first, end, size);
|
|
if (maxsize > font.size()) {
|
|
// use standard paragraph font with the maximal size
|
|
Font maxfont = font;
|
|
maxfont.setSize(maxsize);
|
|
FontMetrics const & maxfontmetrics = theFontMetrics(maxfont);
|
|
maxasc = max(maxasc, maxfontmetrics.maxAscent());
|
|
maxdesc = max(maxdesc, maxfontmetrics.maxDescent());
|
|
}
|
|
|
|
// This is nicer with box insets:
|
|
++maxasc;
|
|
++maxdesc;
|
|
|
|
ParagraphList const & pars = text_->paragraphs();
|
|
|
|
// is it a top line?
|
|
if (first == 0) {
|
|
BufferParams const & bufparams = buffer.params();
|
|
// some parskips VERY EASY IMPLEMENTATION
|
|
if (bufparams.paragraph_separation
|
|
== BufferParams::PARSEP_SKIP
|
|
&& par.ownerCode() != Inset::ERT_CODE
|
|
&& par.ownerCode() != Inset::LISTINGS_CODE
|
|
&& pit > 0
|
|
&& ((layout->isParagraph() && par.getDepth() == 0)
|
|
|| (pars[pit - 1].layout()->isParagraph()
|
|
&& pars[pit - 1].getDepth() == 0)))
|
|
{
|
|
maxasc += bufparams.getDefSkip().inPixels(*bv_);
|
|
}
|
|
|
|
if (par.params().startOfAppendix())
|
|
maxasc += int(3 * dh);
|
|
|
|
// This is special code for the chapter, since the label of this
|
|
// layout is printed in an extra row
|
|
if (layout->counter == "chapter"
|
|
&& !par.params().labelString().empty()) {
|
|
labeladdon = int(labelfont_metrics.maxHeight()
|
|
* layout->spacing.getValue()
|
|
* text_->spacing(buffer, par));
|
|
}
|
|
|
|
// special code for the top label
|
|
if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
|
|
|| layout->labeltype == LABEL_BIBLIO
|
|
|| layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
|
|
&& isFirstInSequence(pit, pars)
|
|
&& !par.getLabelstring().empty())
|
|
{
|
|
labeladdon = int(
|
|
labelfont_metrics.maxHeight()
|
|
* layout->spacing.getValue()
|
|
* text_->spacing(buffer, 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 = depthHook(pit, pars, par.getDepth());
|
|
Paragraph const & prevpar = pars[prev];
|
|
if (prev != pit
|
|
&& prevpar.layout() == layout
|
|
&& prevpar.getDepth() == par.getDepth()
|
|
&& prevpar.getLabelWidthString()
|
|
== par.getLabelWidthString()) {
|
|
layoutasc = layout->itemsep * dh;
|
|
} else if (pit != 0 || first != 0) {
|
|
if (layout->topsep > 0)
|
|
layoutasc = layout->topsep * dh;
|
|
}
|
|
|
|
prev = outerHook(pit, pars);
|
|
if (prev != pit_type(pars.size())) {
|
|
maxasc += int(pars[prev].layout()->parsep * dh);
|
|
} else if (pit != 0) {
|
|
Paragraph const & prevpar = pars[pit - 1];
|
|
if (prevpar.getDepth() != 0 ||
|
|
prevpar.layout() == layout) {
|
|
maxasc += int(layout->parsep * dh);
|
|
}
|
|
}
|
|
}
|
|
|
|
// is it a bottom line?
|
|
if (end >= par.size()) {
|
|
// 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;
|
|
double usual = 0;
|
|
double unusual = 0;
|
|
|
|
if (pars[cpit].getDepth() > pars[nextpit].getDepth()) {
|
|
usual = pars[cpit].layout()->bottomsep * dh;
|
|
cpit = depthHook(cpit, pars, pars[nextpit].getDepth());
|
|
if (pars[cpit].layout() != pars[nextpit].layout()
|
|
|| pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
|
|
{
|
|
unusual = pars[cpit].layout()->bottomsep * dh;
|
|
}
|
|
layoutdesc = max(unusual, usual);
|
|
} else if (pars[cpit].getDepth() == pars[nextpit].getDepth()) {
|
|
if (pars[cpit].layout() != pars[nextpit].layout()
|
|
|| pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
|
|
layoutdesc = int(pars[cpit].layout()->bottomsep * dh);
|
|
}
|
|
}
|
|
}
|
|
|
|
// incalculate the layout spaces
|
|
maxasc += int(layoutasc * 2 / (2 + pars[pit].getDepth()));
|
|
maxdesc += int(layoutdesc * 2 / (2 + pars[pit].getDepth()));
|
|
|
|
// FIXME: the correct way is to do the following is to move the
|
|
// following code in another method specially tailored for the
|
|
// main Text. The following test is thus bogus.
|
|
// Top and bottom margin of the document (only at top-level)
|
|
if (main_text_) {
|
|
if (pit == 0 && first == 0)
|
|
maxasc += 20;
|
|
if (pit + 1 == pit_type(pars.size()) &&
|
|
end == par.size() &&
|
|
!(end > 0 && par.isNewline(end - 1)))
|
|
maxdesc += 20;
|
|
}
|
|
|
|
return boost::make_tuple(maxasc + labeladdon, maxdesc);
|
|
}
|
|
|
|
|
|
// 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::getColumnNearX(pit_type const pit,
|
|
Row const & row, int & x, bool & boundary) const
|
|
{
|
|
Buffer const & buffer = bv_->buffer();
|
|
|
|
/// 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;
|
|
Paragraph const & par = text_->getPar(pit);
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
Bidi bidi;
|
|
bidi.computeTables(par, buffer, row);
|
|
|
|
pos_type vc = row.pos();
|
|
pos_type end = row.endpos();
|
|
pos_type c = 0;
|
|
LayoutPtr const & layout = par.layout();
|
|
|
|
bool left_side = false;
|
|
|
|
pos_type body_pos = par.beginOfBody();
|
|
|
|
double tmpx = row.x;
|
|
double last_tmpx = tmpx;
|
|
|
|
if (body_pos > 0 &&
|
|
(body_pos > end || !par.isLineSeparator(body_pos - 1)))
|
|
body_pos = 0;
|
|
|
|
// check for empty row
|
|
if (vc == end) {
|
|
x = int(tmpx) + xo;
|
|
return 0;
|
|
}
|
|
|
|
while (vc < end && tmpx <= x) {
|
|
c = bidi.vis2log(vc);
|
|
last_tmpx = tmpx;
|
|
if (body_pos > 0 && c == body_pos - 1) {
|
|
FontMetrics const & fm = theFontMetrics(
|
|
text_->getLabelFont(buffer, par));
|
|
tmpx += row.label_hfill + fm.width(layout->labelsep);
|
|
if (par.isLineSeparator(body_pos - 1))
|
|
tmpx -= singleWidth(pit, body_pos - 1);
|
|
}
|
|
|
|
if (pm.hfillExpansion(row, c)) {
|
|
tmpx += singleWidth(pit, c);
|
|
if (c >= body_pos)
|
|
tmpx += row.hfill;
|
|
else
|
|
tmpx += row.label_hfill;
|
|
} else if (par.isSeparator(c)) {
|
|
tmpx += singleWidth(pit, c);
|
|
if (c >= body_pos)
|
|
tmpx += row.separator;
|
|
} else {
|
|
tmpx += singleWidth(pit, c);
|
|
}
|
|
++vc;
|
|
}
|
|
|
|
if ((tmpx + last_tmpx) / 2 > x) {
|
|
tmpx = last_tmpx;
|
|
left_side = true;
|
|
}
|
|
|
|
BOOST_ASSERT(vc <= end); // This shouldn't happen.
|
|
|
|
boundary = false;
|
|
// This (rtl_support test) is not needed, but gives
|
|
// some speedup if rtl_support == false
|
|
bool const lastrow = lyxrc.rtl_support && row.endpos() == par.size();
|
|
|
|
// If lastrow is false, we don't need to compute
|
|
// the value of rtl.
|
|
bool const rtl = lastrow ? text_->isRTL(buffer, par) : false;
|
|
if (lastrow &&
|
|
((rtl && left_side && vc == row.pos() && x < tmpx - 5) ||
|
|
(!rtl && !left_side && vc == end && x > tmpx + 5)))
|
|
c = end;
|
|
else if (vc == row.pos()) {
|
|
c = bidi.vis2log(vc);
|
|
if (bidi.level(c) % 2 == 1)
|
|
++c;
|
|
} else {
|
|
c = bidi.vis2log(vc - 1);
|
|
bool const rtl = (bidi.level(c) % 2 == 1);
|
|
if (left_side == rtl) {
|
|
++c;
|
|
boundary = isRTLBoundary(pit, c);
|
|
}
|
|
}
|
|
|
|
// I believe this code is not needed anymore (Jug 20050717)
|
|
#if 0
|
|
// The following code is necessary because the cursor position past
|
|
// the last char in a row is logically equivalent to that before
|
|
// the first char in the next row. That's why insets causing row
|
|
// divisions -- Newline and display-style insets -- must be treated
|
|
// specially, so cursor up/down doesn't get stuck in an air gap -- MV
|
|
// Newline inset, air gap below:
|
|
if (row.pos() < end && c >= end && par.isNewline(end - 1)) {
|
|
if (bidi.level(end -1) % 2 == 0)
|
|
tmpx -= singleWidth(pit, end - 1);
|
|
else
|
|
tmpx += singleWidth(pit, end - 1);
|
|
c = end - 1;
|
|
}
|
|
|
|
// Air gap above display inset:
|
|
if (row.pos() < end && c >= end && end < par.size()
|
|
&& par.isInset(end) && par.getInset(end)->display()) {
|
|
c = end - 1;
|
|
}
|
|
// Air gap below display inset:
|
|
if (row.pos() < end && c >= end && par.isInset(end - 1)
|
|
&& par.getInset(end - 1)->display()) {
|
|
c = end - 1;
|
|
}
|
|
#endif
|
|
|
|
x = int(tmpx) + xo;
|
|
pos_type const col = c - row.pos();
|
|
|
|
if (!c || end == par.size())
|
|
return col;
|
|
|
|
if (c==end && !par.isLineSeparator(c-1) && !par.isNewline(c-1)) {
|
|
boundary = true;
|
|
return col;
|
|
}
|
|
|
|
return min(col, end - 1 - row.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);
|
|
|
|
BOOST_ASSERT(row < int(pm.rows().size()));
|
|
bool bound = false;
|
|
Row const & r = pm.rows()[row];
|
|
return r.pos() + getColumnNearX(pit, r, x, bound);
|
|
}
|
|
|
|
|
|
void TextMetrics::newParMetricsDown()
|
|
{
|
|
pair<pit_type, ParagraphMetrics> const & last = *par_metrics_.rbegin();
|
|
pit_type const pit = last.first + 1;
|
|
if (pit == text_->paragraphs().size())
|
|
return;
|
|
|
|
// do it and update its position.
|
|
redoParagraph(pit);
|
|
par_metrics_[pit].setPosition(last.second.position()
|
|
+ last.second.descent());
|
|
}
|
|
|
|
|
|
void TextMetrics::newParMetricsUp()
|
|
{
|
|
pair<pit_type, ParagraphMetrics> const & first = *par_metrics_.begin();
|
|
if (first.first == 0)
|
|
return;
|
|
|
|
pit_type const pit = first.first - 1;
|
|
// do it and update its position.
|
|
redoParagraph(pit);
|
|
par_metrics_[pit].setPosition(first.second.position()
|
|
- first.second.ascent());
|
|
}
|
|
|
|
// y is screen coordinate
|
|
pit_type TextMetrics::getPitNearY(int y)
|
|
{
|
|
BOOST_ASSERT(!text_->paragraphs().empty());
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": y: " << y << " cache size: " << par_metrics_.size()
|
|
<< endl;
|
|
|
|
// look for highest numbered paragraph with y coordinate less than given y
|
|
pit_type pit = 0;
|
|
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 we are off-screen (before the visible part)
|
|
if (y < 0
|
|
// and even before the first paragraph in the cache.
|
|
&& y < it->second.position() - int(pm.ascent())) {
|
|
// and we are not at the first paragraph in the inset.
|
|
if (it->first == 0)
|
|
return 0;
|
|
// then this is the paragraph we are looking for.
|
|
pit = it->first - 1;
|
|
// rebreak it and update the CoordCache.
|
|
redoParagraph(pit);
|
|
par_metrics_[pit].setPosition(it->second.position() - pm.descent());
|
|
return pit;
|
|
}
|
|
|
|
ParagraphMetrics const & pm_last = par_metrics_[last->first];
|
|
|
|
// If we are off-screen (after the visible part)
|
|
if (y > bv_->workHeight()
|
|
// and even after the first paragraph in the cache.
|
|
&& y >= last->second.position() + int(pm_last.descent())) {
|
|
pit = last->first + 1;
|
|
// and we are not at the last paragraph in the inset.
|
|
if (pit == int(text_->paragraphs().size()))
|
|
return last->first;
|
|
// then this is the paragraph we are looking for.
|
|
// rebreak it and update the CoordCache.
|
|
redoParagraph(pit);
|
|
par_metrics_[pit].setPosition(last->second.position() + pm_last.ascent());
|
|
return pit;
|
|
}
|
|
|
|
for (; it != et; ++it) {
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< " examining: pit: " << it->first
|
|
<< " y: " << it->second.position()
|
|
<< endl;
|
|
|
|
ParagraphMetrics const & pm = par_metrics_[it->first];
|
|
|
|
if (it->first >= pit && int(it->second.position()) - int(pm.ascent()) <= y) {
|
|
pit = it->first;
|
|
yy = it->second.position();
|
|
}
|
|
}
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": found best y: " << yy << " for pit: " << pit
|
|
<< endl;
|
|
|
|
return pit;
|
|
}
|
|
|
|
|
|
Row const & TextMetrics::getRowNearY(int y, pit_type pit) const
|
|
{
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
|
|
int yy = pm.position() - pm.ascent();
|
|
BOOST_ASSERT(!pm.rows().empty());
|
|
RowList::const_iterator rit = pm.rows().begin();
|
|
RowList::const_iterator const rlast = boost::prior(pm.rows().end());
|
|
for (; rit != rlast; yy += rit->height(), ++rit)
|
|
if (yy + rit->height() > y)
|
|
break;
|
|
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)
|
|
{
|
|
if (lyxerr.debugging(Debug::WORKAREA)) {
|
|
lyxerr << "TextMetrics::editXY(cur, " << x << ", " << y << ")" << std::endl;
|
|
cur.bv().coordCache().dump();
|
|
}
|
|
pit_type pit = getPitNearY(y);
|
|
BOOST_ASSERT(pit != -1);
|
|
|
|
Row const & row = getRowNearY(y, pit);
|
|
bool bound = false;
|
|
|
|
int xx = x; // is modified by getColumnNearX
|
|
pos_type const pos = row.pos()
|
|
+ getColumnNearX(pit, row, xx, bound);
|
|
cur.pit() = pit;
|
|
cur.pos() = pos;
|
|
cur.boundary(bound);
|
|
cur.setTargetX(x);
|
|
|
|
// try to descend into nested insets
|
|
Inset * inset = checkInsetHit(x, y);
|
|
//lyxerr << "inset " << inset << " hit at x: " << x << " y: " << y << endl;
|
|
if (!inset) {
|
|
// Either we deconst editXY or better we move current_font
|
|
// and real_current_font to Cursor
|
|
// FIXME: what is needed now that current_font and real_current_font
|
|
// are transferred?
|
|
cur.setCurrentFont();
|
|
return 0;
|
|
}
|
|
|
|
ParagraphList const & pars = text_->paragraphs();
|
|
Inset const * insetBefore = pos? pars[pit].getInset(pos - 1): 0;
|
|
//Inset * insetBehind = pars[pit].getInset(pos);
|
|
|
|
// This should be just before or just behind the
|
|
// cursor position set above.
|
|
BOOST_ASSERT((pos != 0 && inset == insetBefore)
|
|
|| inset == pars[pit].getInset(pos));
|
|
|
|
// Make sure the cursor points to the position before
|
|
// this inset.
|
|
if (inset == insetBefore) {
|
|
--cur.pos();
|
|
cur.boundary(false);
|
|
}
|
|
|
|
// Try to descend recursively inside the inset.
|
|
inset = inset->editXY(cur, x, y);
|
|
|
|
if (cur.top().text() == text_)
|
|
cur.setCurrentFont();
|
|
return inset;
|
|
}
|
|
|
|
|
|
void TextMetrics::setCursorFromCoordinates(Cursor & cur, int const x, int const y)
|
|
{
|
|
BOOST_ASSERT(text_ == cur.text());
|
|
pit_type pit = getPitNearY(y);
|
|
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
|
|
int yy = pm.position() - pm.ascent();
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": x: " << x
|
|
<< " y: " << y
|
|
<< " pit: " << pit
|
|
<< " yy: " << yy << endl;
|
|
|
|
int r = 0;
|
|
BOOST_ASSERT(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)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": row " << r
|
|
<< " from pos: " << row.pos()
|
|
<< endl;
|
|
|
|
bool bound = false;
|
|
int xx = x;
|
|
pos_type const pos = row.pos() + getColumnNearX(pit, row, xx, bound);
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": setting cursor pit: " << pit
|
|
<< " pos: " << pos
|
|
<< endl;
|
|
|
|
text_->setCursor(cur, pit, pos, true, bound);
|
|
// remember new position.
|
|
cur.setTargetX();
|
|
}
|
|
|
|
|
|
//takes screen x,y coordinates
|
|
Inset * TextMetrics::checkInsetHit(int x, int y)
|
|
{
|
|
pit_type pit = getPitNearY(y);
|
|
BOOST_ASSERT(pit != -1);
|
|
|
|
Paragraph const & par = text_->paragraphs()[pit];
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": x: " << x
|
|
<< " y: " << y
|
|
<< " pit: " << pit
|
|
<< endl;
|
|
InsetList::const_iterator iit = par.insetlist.begin();
|
|
InsetList::const_iterator iend = par.insetlist.end();
|
|
for (; iit != iend; ++iit) {
|
|
Inset * inset = iit->inset;
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": examining inset " << inset << endl;
|
|
|
|
if (!bv_->coordCache().getInsets().has(inset)) {
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": inset has no cached position" << endl;
|
|
return 0;
|
|
}
|
|
|
|
Dimension const & dim = pm.insetDimension(inset);
|
|
Point p = bv_->coordCache().getInsets().xy(inset);
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": xo: " << p.x_ << "..." << p.x_ + dim.wid
|
|
<< " yo: " << p.y_ - dim.asc << "..." << p.y_ + dim.des
|
|
<< endl;
|
|
|
|
if (x >= p.x_ && p.x_ + dim.wid
|
|
&& y >= p.y_ - dim.asc
|
|
&& y <= p.y_ + dim.des) {
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": Hit inset: " << inset << endl;
|
|
return inset;
|
|
}
|
|
}
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": No inset hit. " << endl;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int TextMetrics::cursorX(CursorSlice const & sl,
|
|
bool boundary) const
|
|
{
|
|
BOOST_ASSERT(sl.text() == text_);
|
|
pit_type const pit = sl.pit();
|
|
Paragraph const & par = text_->paragraphs()[pit];
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
if (pm.rows().empty())
|
|
return 0;
|
|
|
|
pos_type ppos = sl.pos();
|
|
// Correct position in front of big insets
|
|
bool const boundary_correction = ppos != 0 && boundary;
|
|
if (boundary_correction)
|
|
--ppos;
|
|
|
|
Row const & row = pm.getRow(sl.pos(), boundary);
|
|
|
|
pos_type cursor_vpos = 0;
|
|
|
|
Buffer const & buffer = bv_->buffer();
|
|
double x = row.x;
|
|
Bidi bidi;
|
|
bidi.computeTables(par, buffer, row);
|
|
|
|
pos_type const row_pos = row.pos();
|
|
pos_type const end = row.endpos();
|
|
// Spaces at logical line breaks in bidi text must be skipped during
|
|
// cursor positioning. However, they may appear visually in the middle
|
|
// of a row; they must be skipped, wherever they are...
|
|
// * logically "abc_[HEBREW_\nHEBREW]"
|
|
// * visually "abc_[_WERBEH\nWERBEH]"
|
|
pos_type skipped_sep_vpos = -1;
|
|
|
|
if (end <= row_pos)
|
|
cursor_vpos = row_pos;
|
|
else if (ppos >= end)
|
|
cursor_vpos = text_->isRTL(buffer, par) ? row_pos : end;
|
|
else if (ppos > row_pos && ppos >= end)
|
|
// Place cursor after char at (logical) position pos - 1
|
|
cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
|
|
? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
|
|
else
|
|
// Place cursor before char at (logical) position ppos
|
|
cursor_vpos = (bidi.level(ppos) % 2 == 0)
|
|
? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
|
|
|
|
pos_type body_pos = par.beginOfBody();
|
|
if (body_pos > 0 &&
|
|
(body_pos > end || !par.isLineSeparator(body_pos - 1)))
|
|
body_pos = 0;
|
|
|
|
// Use font span to speed things up, see below
|
|
FontSpan font_span;
|
|
Font font;
|
|
|
|
// If the last logical character is a separator, skip it, unless
|
|
// it's in the last row of a paragraph; see skipped_sep_vpos declaration
|
|
if (end > 0 && end < par.size() && par.isSeparator(end - 1))
|
|
skipped_sep_vpos = bidi.log2vis(end - 1);
|
|
|
|
for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
|
|
// Skip the separator which is at the logical end of the row
|
|
if (vpos == skipped_sep_vpos)
|
|
continue;
|
|
pos_type pos = bidi.vis2log(vpos);
|
|
if (body_pos > 0 && pos == body_pos - 1) {
|
|
FontMetrics const & labelfm = theFontMetrics(
|
|
text_->getLabelFont(buffer, par));
|
|
x += row.label_hfill + labelfm.width(par.layout()->labelsep);
|
|
if (par.isLineSeparator(body_pos - 1))
|
|
x -= singleWidth(pit, body_pos - 1);
|
|
}
|
|
|
|
// Use font span to speed things up, see above
|
|
if (pos < font_span.first || pos > font_span.last) {
|
|
font_span = par.fontSpan(pos);
|
|
font = getDisplayFont(pit, pos);
|
|
}
|
|
|
|
x += pm.singleWidth(pos, font);
|
|
|
|
if (pm.hfillExpansion(row, pos))
|
|
x += (pos >= body_pos) ? row.hfill : row.label_hfill;
|
|
else if (par.isSeparator(pos) && pos >= body_pos)
|
|
x += row.separator;
|
|
}
|
|
|
|
// see correction above
|
|
if (boundary_correction) {
|
|
if (isRTL(sl, boundary))
|
|
x -= singleWidth(pit, ppos);
|
|
else
|
|
x += singleWidth(pit, ppos);
|
|
}
|
|
|
|
return int(x);
|
|
}
|
|
|
|
|
|
int TextMetrics::cursorY(CursorSlice const & sl, bool boundary) const
|
|
{
|
|
//lyxerr << "TextMetrics::cursorY: boundary: " << boundary << std::endl;
|
|
ParagraphMetrics const & pm = par_metrics_[sl.pit()];
|
|
if (pm.rows().empty())
|
|
return 0;
|
|
|
|
int h = 0;
|
|
h -= par_metrics_[0].rows()[0].ascent();
|
|
for (pit_type pit = 0; pit < sl.pit(); ++pit) {
|
|
h += par_metrics_[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;
|
|
}
|
|
|
|
|
|
void TextMetrics::cursorPrevious(Cursor & cur)
|
|
{
|
|
pos_type cpos = cur.pos();
|
|
pit_type cpar = cur.pit();
|
|
|
|
int x = cur.x_target();
|
|
setCursorFromCoordinates(cur, x, 0);
|
|
cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
|
|
|
|
if (cpar == cur.pit() && cpos == cur.pos())
|
|
// we have a row which is taller than the workarea. The
|
|
// simplest solution is to move to the previous row instead.
|
|
cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
|
|
|
|
finishUndo();
|
|
cur.updateFlags(Update::Force | Update::FitCursor);
|
|
}
|
|
|
|
|
|
void TextMetrics::cursorNext(Cursor & cur)
|
|
{
|
|
pos_type cpos = cur.pos();
|
|
pit_type cpar = cur.pit();
|
|
|
|
int x = cur.x_target();
|
|
setCursorFromCoordinates(cur, x, cur.bv().workHeight() - 1);
|
|
cur.dispatch(FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
|
|
|
|
if (cpar == cur.pit() && cpos == cur.pos())
|
|
// we have a row which is taller than the workarea. The
|
|
// simplest solution is to move to the next row instead.
|
|
cur.dispatch(
|
|
FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
|
|
|
|
finishUndo();
|
|
cur.updateFlags(Update::Force | Update::FitCursor);
|
|
}
|
|
|
|
|
|
// 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)
|
|
{
|
|
BOOST_ASSERT(text_ == cur.text());
|
|
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)
|
|
{
|
|
BOOST_ASSERT(text_ == cur.text());
|
|
// 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))
|
|
boundary = true;
|
|
else
|
|
--end;
|
|
}
|
|
return text_->setCursor(cur, cur.pit(), end, true, boundary);
|
|
}
|
|
|
|
|
|
void TextMetrics::deleteLineForward(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(text_ == cur.text());
|
|
if (cur.lastpos() == 0) {
|
|
// Paragraph is empty, so we just go to the right
|
|
text_->cursorRight(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, true, false);
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
}
|
|
|
|
|
|
bool TextMetrics::isLastRow(pit_type pit, Row const & row) const
|
|
{
|
|
ParagraphList const & pars = text_->paragraphs();
|
|
return row.endpos() >= pars[pit].size()
|
|
&& pit + 1 == pit_type(pars.size());
|
|
}
|
|
|
|
|
|
bool TextMetrics::isFirstRow(pit_type pit, Row const & row) const
|
|
{
|
|
return row.pos() == 0 && pit == 0;
|
|
}
|
|
|
|
|
|
int TextMetrics::leftMargin(int max_width, pit_type pit) const
|
|
{
|
|
BOOST_ASSERT(pit >= 0);
|
|
BOOST_ASSERT(pit < int(text_->paragraphs().size()));
|
|
return leftMargin(max_width, pit, text_->paragraphs()[pit].size());
|
|
}
|
|
|
|
|
|
int TextMetrics::leftMargin(int max_width,
|
|
pit_type const pit, pos_type const pos) const
|
|
{
|
|
ParagraphList const & pars = text_->paragraphs();
|
|
|
|
BOOST_ASSERT(pit >= 0);
|
|
BOOST_ASSERT(pit < int(pars.size()));
|
|
Paragraph const & par = pars[pit];
|
|
BOOST_ASSERT(pos >= 0);
|
|
BOOST_ASSERT(pos <= par.size());
|
|
Buffer const & buffer = bv_->buffer();
|
|
//lyxerr << "TextMetrics::leftMargin: pit: " << pit << " pos: " << pos << endl;
|
|
TextClass const & tclass = buffer.params().getTextClass();
|
|
LayoutPtr const & layout = par.layout();
|
|
|
|
docstring parindent = layout->parindent;
|
|
|
|
int l_margin = 0;
|
|
|
|
if (text_->isMainText(buffer))
|
|
l_margin += changebarMargin();
|
|
|
|
l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
|
|
tclass.leftmargin());
|
|
|
|
if (par.getDepth() != 0) {
|
|
// find the next level paragraph
|
|
pit_type newpar = outerHook(pit, pars);
|
|
if (newpar != pit_type(pars.size())) {
|
|
if (pars[newpar].layout()->isEnvironment()) {
|
|
l_margin = leftMargin(max_width, newpar);
|
|
}
|
|
if (par.layout() == tclass.defaultLayout()) {
|
|
if (pars[newpar].params().noindent())
|
|
parindent.erase();
|
|
else
|
|
parindent = pars[newpar].layout()->parindent;
|
|
}
|
|
}
|
|
}
|
|
|
|
// This happens after sections in standard classes. The 1.3.x
|
|
// code compared depths too, but it does not seem necessary
|
|
// (JMarc)
|
|
if (par.layout() == tclass.defaultLayout()
|
|
&& pit > 0 && pars[pit - 1].layout()->nextnoindent)
|
|
parindent.erase();
|
|
|
|
Font const labelfont = text_->getLabelFont(buffer, par);
|
|
FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
|
|
|
|
switch (layout->margintype) {
|
|
case MARGIN_DYNAMIC:
|
|
if (!layout->leftmargin.empty()) {
|
|
l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
|
|
layout->leftmargin);
|
|
}
|
|
if (!par.getLabelstring().empty()) {
|
|
l_margin += labelfont_metrics.signedWidth(layout->labelindent);
|
|
l_margin += labelfont_metrics.width(par.getLabelstring());
|
|
l_margin += labelfont_metrics.width(layout->labelsep);
|
|
}
|
|
break;
|
|
|
|
case MARGIN_MANUAL: {
|
|
l_margin += labelfont_metrics.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 += labelfont_metrics.width(labstr);
|
|
l_margin += labelfont_metrics.width(layout->labelsep);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MARGIN_STATIC: {
|
|
l_margin += theFontMetrics(buffer.params().getFont()).
|
|
signedWidth(layout->leftmargin) * 4 / (par.getDepth() + 4);
|
|
break;
|
|
}
|
|
|
|
case MARGIN_FIRST_DYNAMIC:
|
|
if (layout->labeltype == LABEL_MANUAL) {
|
|
if (pos >= par.beginOfBody()) {
|
|
l_margin += labelfont_metrics.signedWidth(layout->leftmargin);
|
|
} else {
|
|
l_margin += labelfont_metrics.signedWidth(layout->labelindent);
|
|
}
|
|
} else if (pos != 0
|
|
// Special case to fix problems with
|
|
// theorems (JMarc)
|
|
|| (layout->labeltype == LABEL_STATIC
|
|
&& layout->latextype == LATEX_ENVIRONMENT
|
|
&& !isFirstInSequence(pit, pars))) {
|
|
l_margin += labelfont_metrics.signedWidth(layout->leftmargin);
|
|
} else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
|
|
&& layout->labeltype != LABEL_BIBLIO
|
|
&& layout->labeltype !=
|
|
LABEL_CENTERED_TOP_ENVIRONMENT) {
|
|
l_margin += labelfont_metrics.signedWidth(layout->labelindent);
|
|
l_margin += labelfont_metrics.width(layout->labelsep);
|
|
l_margin += labelfont_metrics.width(par.getLabelstring());
|
|
}
|
|
break;
|
|
|
|
case MARGIN_RIGHT_ADDRESS_BOX: {
|
|
#if 0
|
|
// ok, a terrible hack. The left margin depends on the widest
|
|
// row in this paragraph.
|
|
RowList::iterator rit = par.rows().begin();
|
|
RowList::iterator end = par.rows().end();
|
|
// FIXME: This is wrong.
|
|
int minfill = max_width;
|
|
for ( ; rit != end; ++rit)
|
|
if (rit->fill() < minfill)
|
|
minfill = rit->fill();
|
|
l_margin += theFontMetrics(params.getFont()).signedWidth(layout->leftmargin);
|
|
l_margin += minfill;
|
|
#endif
|
|
// also wrong, but much shorter.
|
|
l_margin += max_width / 2;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!par.params().leftIndent().zero())
|
|
l_margin += par.params().leftIndent().inPixels(max_width);
|
|
|
|
LyXAlignment align;
|
|
|
|
if (par.params().align() == LYX_ALIGN_LAYOUT)
|
|
align = layout->align;
|
|
else
|
|
align = par.params().align();
|
|
|
|
// set the correct parindent
|
|
if (pos == 0
|
|
&& (layout->labeltype == LABEL_NO_LABEL
|
|
|| layout->labeltype == LABEL_TOP_ENVIRONMENT
|
|
|| layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
|
|
|| (layout->labeltype == LABEL_STATIC
|
|
&& layout->latextype == LATEX_ENVIRONMENT
|
|
&& !isFirstInSequence(pit, pars)))
|
|
&& align == LYX_ALIGN_BLOCK
|
|
&& !par.params().noindent()
|
|
// in some insets, paragraphs are never indented
|
|
&& !(par.inInset() && par.inInset()->neverIndent(buffer))
|
|
// display style insets are always centered, omit indentation
|
|
&& !(!par.empty()
|
|
&& par.isInset(pos)
|
|
&& par.getInset(pos)->display())
|
|
&& (par.layout() != tclass.defaultLayout()
|
|
|| buffer.params().paragraph_separation ==
|
|
BufferParams::PARSEP_INDENT))
|
|
{
|
|
l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
|
|
parindent);
|
|
}
|
|
|
|
return l_margin;
|
|
}
|
|
|
|
|
|
int TextMetrics::singleWidth(pit_type pit, pos_type pos) const
|
|
{
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
|
|
return pm.singleWidth(pos, getDisplayFont(pit, pos));
|
|
}
|
|
|
|
|
|
// only used for inset right now. should also be used for main text
|
|
void TextMetrics::draw(PainterInfo & pi, int x, int y) const
|
|
{
|
|
if (par_metrics_.empty())
|
|
return;
|
|
|
|
origin_.x_ = x;
|
|
origin_.y_ = y;
|
|
|
|
ParMetricsCache::iterator it = par_metrics_.begin();
|
|
ParMetricsCache::iterator const pm_end = par_metrics_.end();
|
|
y -= it->second.ascent();
|
|
for (; it != pm_end; ++it) {
|
|
ParagraphMetrics const & pmi = it->second;
|
|
y += pmi.ascent();
|
|
pit_type const pit = it->first;
|
|
// Save the paragraph position in the cache.
|
|
it->second.setPosition(y);
|
|
drawParagraph(pi, pit, x, y);
|
|
y += pmi.descent();
|
|
}
|
|
}
|
|
|
|
|
|
void TextMetrics::drawParagraph(PainterInfo & pi, pit_type pit, int x, int y) const
|
|
{
|
|
// lyxerr << " paintPar: pit: " << pit << " at y: " << y << endl;
|
|
int const ww = bv_->workHeight();
|
|
|
|
ParagraphMetrics const & pm = par_metrics_[pit];
|
|
if (pm.rows().empty())
|
|
return;
|
|
|
|
RowList::const_iterator const rb = pm.rows().begin();
|
|
RowList::const_iterator const re = pm.rows().end();
|
|
|
|
Bidi bidi;
|
|
|
|
y -= rb->ascent();
|
|
for (RowList::const_iterator rit = rb; rit != re; ++rit) {
|
|
y += rit->ascent();
|
|
|
|
bool const inside = (y + rit->descent() >= 0
|
|
&& y - rit->ascent() < ww);
|
|
// it is not needed to draw on screen if we are not inside.
|
|
pi.pain.setDrawingEnabled(inside);
|
|
RowPainter rp(pi, *text_, pit, *rit, bidi, x, y);
|
|
|
|
// Row signature; has row changed since last paint?
|
|
bool row_has_changed = rit->changed();
|
|
|
|
bool row_selection = rit->sel_beg != -1 && rit->sel_end != -1;
|
|
|
|
if (!row_selection && !pi.full_repaint && !row_has_changed) {
|
|
// Paint the only the insets if the text itself is
|
|
// unchanged.
|
|
rp.paintOnlyInsets();
|
|
y += rit->descent();
|
|
continue;
|
|
}
|
|
|
|
// Paint the row if a full repaint has been requested or it has
|
|
// changed.
|
|
// Clear background of this row
|
|
// (if paragraph background was not cleared)
|
|
if (row_selection || (!pi.full_repaint && row_has_changed)) {
|
|
pi.pain.fillRectangle(x, y - rit->ascent(),
|
|
width(), rit->height(),
|
|
Color_color(Color::color(pi.background_color)));
|
|
}
|
|
if (row_selection) {
|
|
DocIterator beg = bv_->cursor().selectionBegin();
|
|
DocIterator end = bv_->cursor().selectionEnd();
|
|
beg.pit() = pit;
|
|
beg.pos() = rit->sel_beg;
|
|
if (pit == end.pit()) {
|
|
end.pos() = rit->sel_end;
|
|
} else {
|
|
end.pit() = pit + 1;
|
|
end.pos() = 0;
|
|
}
|
|
drawSelection(pi, beg, end, x);
|
|
}
|
|
|
|
// Instrumentation for testing row cache (see also
|
|
// 12 lines lower):
|
|
if (lyxerr.debugging(Debug::PAINTING)) {
|
|
if (text_->isMainText(bv_->buffer()))
|
|
LYXERR(Debug::PAINTING) << "\n{" <<
|
|
pi.full_repaint << row_has_changed << "}";
|
|
else
|
|
LYXERR(Debug::PAINTING) << "[" <<
|
|
pi.full_repaint << row_has_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.paintAppendix();
|
|
rp.paintDepthBar();
|
|
rp.paintChangeBar();
|
|
if (rit == rb)
|
|
rp.paintFirst();
|
|
rp.paintText();
|
|
if (rit + 1 == re)
|
|
rp.paintLast();
|
|
y += rit->descent();
|
|
// Restore full_repaint status.
|
|
pi.full_repaint = tmp;
|
|
}
|
|
// Re-enable screen drawing for future use of the painter.
|
|
pi.pain.setDrawingEnabled(true);
|
|
|
|
//LYXERR(Debug::PAINTING) << "." << endl;
|
|
}
|
|
|
|
|
|
// FIXME: only take care of one row!
|
|
void TextMetrics::drawSelection(PainterInfo & pi,
|
|
DocIterator const & beg, DocIterator const & end, int x) const
|
|
{
|
|
ParagraphMetrics const & pm1 = parMetrics(beg.pit());
|
|
ParagraphMetrics const & pm2 = parMetrics(end.pit());
|
|
Row const & row1 = pm1.getRow(beg.pos(), beg.boundary());
|
|
Row const & row2 = pm2.getRow(end.pos(), end.boundary());
|
|
|
|
// clip above
|
|
int middleTop;
|
|
bool const clipAbove =
|
|
(bv_funcs::status(bv_, beg) == bv_funcs::CUR_ABOVE);
|
|
if (clipAbove)
|
|
middleTop = 0;
|
|
else
|
|
middleTop = bv_funcs::getPos(*bv_, beg, beg.boundary()).y_ + row1.descent();
|
|
|
|
// clip below
|
|
int middleBottom;
|
|
bool const clipBelow =
|
|
(bv_funcs::status(bv_, end) == bv_funcs::CUR_BELOW);
|
|
if (clipBelow)
|
|
middleBottom = bv_->workHeight();
|
|
else
|
|
middleBottom = bv_funcs::getPos(*bv_, end, end.boundary()).y_ - row2.ascent();
|
|
|
|
// start and end in the same line?
|
|
if (!(clipAbove || clipBelow) && &row1 == &row2)
|
|
// then only draw this row's selection
|
|
drawRowSelection(pi, x, row1, beg, end, false, false);
|
|
else {
|
|
if (!clipAbove) {
|
|
// get row end
|
|
DocIterator begRowEnd = beg;
|
|
begRowEnd.pos() = row1.endpos();
|
|
begRowEnd.boundary(true);
|
|
|
|
// draw upper rectangle
|
|
drawRowSelection(pi, x, row1, beg, begRowEnd, false, true);
|
|
}
|
|
|
|
if (middleTop < middleBottom) {
|
|
// draw middle rectangle
|
|
pi.pain.fillRectangle(x, middleTop, width(), middleBottom - middleTop,
|
|
Color::selection);
|
|
}
|
|
|
|
if (!clipBelow) {
|
|
// get row begin
|
|
DocIterator endRowBeg = end;
|
|
endRowBeg.pos() = row2.pos();
|
|
endRowBeg.boundary(false);
|
|
|
|
// draw low rectangle
|
|
drawRowSelection(pi, x, row2, endRowBeg, end, true, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void TextMetrics::drawRowSelection(PainterInfo & pi, int x, Row const & row,
|
|
DocIterator const & beg, DocIterator const & end,
|
|
bool drawOnBegMargin, bool drawOnEndMargin) const
|
|
{
|
|
Buffer & buffer = bv_->buffer();
|
|
DocIterator cur = beg;
|
|
int x1 = cursorX(beg.top(), beg.boundary());
|
|
int x2 = cursorX(end.top(), end.boundary());
|
|
int y1 = bv_funcs::getPos(*bv_, cur, cur.boundary()).y_ - row.ascent();
|
|
int y2 = y1 + row.height();
|
|
|
|
// draw the margins
|
|
if (drawOnBegMargin) {
|
|
if (text_->isRTL(buffer, beg.paragraph()))
|
|
pi.pain.fillRectangle(x + x1, y1, width() - x1, y2 - y1, Color::selection);
|
|
else
|
|
pi.pain.fillRectangle(x, y1, x1, y2 - y1, Color::selection);
|
|
}
|
|
|
|
if (drawOnEndMargin) {
|
|
if (text_->isRTL(buffer, beg.paragraph()))
|
|
pi.pain.fillRectangle(x, y1, x2, y2 - y1, Color::selection);
|
|
else
|
|
pi.pain.fillRectangle(x + x2, y1, width() - x2, y2 - y1, Color::selection);
|
|
}
|
|
|
|
// if we are on a boundary from the beginning, it's probably
|
|
// a RTL boundary and we jump to the other side directly as this
|
|
// segement is 0-size and confuses the logic below
|
|
if (cur.boundary())
|
|
cur.boundary(false);
|
|
|
|
// go through row and draw from RTL boundary to RTL boundary
|
|
while (cur < end) {
|
|
bool drawNow = false;
|
|
|
|
// simplified cursorRight code below which does not
|
|
// descend into insets and which does not go into the
|
|
// next line. Compare the logic with the original cursorRight
|
|
|
|
// if left of boundary -> just jump to right side
|
|
// but for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
|
|
if (cur.boundary()) {
|
|
cur.boundary(false);
|
|
} else if (isRTLBoundary(cur.pit(), cur.pos() + 1)) {
|
|
// in front of RTL boundary -> Stay on this side of the boundary because:
|
|
// ab|cDDEEFFghi -> abc|DDEEFFghi
|
|
++cur.pos();
|
|
cur.boundary(true);
|
|
drawNow = true;
|
|
} else {
|
|
// move right
|
|
++cur.pos();
|
|
|
|
// line end?
|
|
if (cur.pos() == row.endpos())
|
|
cur.boundary(true);
|
|
}
|
|
|
|
if (x1 == -1) {
|
|
// the previous segment was just drawn, now the next starts
|
|
x1 = cursorX(cur.top(), cur.boundary());
|
|
}
|
|
|
|
if (!(cur < end) || drawNow) {
|
|
x2 = cursorX(cur.top(), cur.boundary());
|
|
pi.pain.fillRectangle(x + min(x1,x2), y1, abs(x2 - x1), y2 - y1,
|
|
Color::selection);
|
|
|
|
// reset x1, so it is set again next round (which will be on the
|
|
// right side of a boundary or at the selection end)
|
|
x1 = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
//int TextMetrics::pos2x(pit_type pit, pos_type pos) const
|
|
//{
|
|
// ParagraphMetrics const & pm = par_metrics_[pit];
|
|
// Row const & r = pm.rows()[row];
|
|
// int x = 0;
|
|
// pos -= r.pos();
|
|
//}
|
|
|
|
|
|
int defaultRowHeight()
|
|
{
|
|
return int(theFontMetrics(Font(Font::ALL_SANE)).maxHeight() * 1.2);
|
|
}
|
|
|
|
} // namespace lyx
|