X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FParagraphMetrics.cpp;h=d4ff656449ace627c47a9365e8bd51bb122f6da9;hb=80dfb44171bdb081ec56ae9bd7bcc301359cb1ab;hp=2d5914644d2f5f9a61c03b11ae9962adf05eb5d1;hpb=6add1994c75c0f3e0db50ab6c94ac3b73deb1561;p=lyx.git diff --git a/src/ParagraphMetrics.cpp b/src/ParagraphMetrics.cpp index 2d5914644d..d4ff656449 100644 --- a/src/ParagraphMetrics.cpp +++ b/src/ParagraphMetrics.cpp @@ -4,13 +4,13 @@ * Licence details can be found in the file COPYING. * * \author Asger Alstrup - * \author Lars Gullik Bjønnes + * \author Lars Gullik Bjønnes * \author Jean-Marc Lasgouttes * \author Angus Leeming * \author John Levon - * \author André Pönitz + * \author André Pönitz * \author Dekel Tsur - * \author Jürgen Vigna + * \author Jürgen Vigna * * Full author contact details are available in file CREDITS. */ @@ -21,35 +21,33 @@ #include "Buffer.h" #include "BufferParams.h" +#include "BufferView.h" #include "Counters.h" #include "Encoding.h" -#include "debug.h" -#include "gettext.h" #include "Language.h" #include "LaTeXFeatures.h" +#include "Layout.h" #include "Font.h" #include "LyXRC.h" #include "Row.h" #include "OutputParams.h" -#include "paragraph_funcs.h" - -#include "rowpainter.h" - #include "sgml.h" +#include "TextClass.h" #include "TexRow.h" -#include "VSpace.h" #include "frontends/FontMetrics.h" #include "insets/InsetBibitem.h" -#include "insets/InsetOptArg.h" +#include "insets/InsetArgument.h" +#include "support/lassert.h" +#include "support/debug.h" +#include "support/ExceptionMessage.h" +#include "support/gettext.h" #include "support/lstrings.h" #include "support/textutils.h" -#include "support/convert.h" -#include "support/unicode.h" -#include +#include "support/bind.h" #include #include @@ -57,25 +55,15 @@ #include #include +using namespace std; +using namespace lyx::support; namespace lyx { -using lyx::support::contains; -using lyx::support::rsplit; -using support::subst; - -using std::distance; -using std::endl; -using std::list; -using std::stack; -using std::string; -using std::ostream; -using std::ostringstream; - -ParagraphMetrics::ParagraphMetrics(Paragraph const & par): par_(&par) -{ -} +ParagraphMetrics::ParagraphMetrics(Paragraph const & par) : + position_(-1), par_(&par) +{} ParagraphMetrics & ParagraphMetrics::operator=( @@ -84,39 +72,71 @@ ParagraphMetrics & ParagraphMetrics::operator=( rows_ = pm.rows_; dim_ = pm.dim_; par_ = pm.par_; + position_ = pm.position_; return *this; } -size_type ParagraphMetrics::calculateRowSignature(Row const & row) +void ParagraphMetrics::reset(Paragraph const & par) +{ + par_ = ∥ + dim_ = Dimension(); + //position_ = -1; +} + + +size_t ParagraphMetrics::computeRowSignature(Row const & row, + BufferParams const & bparams) const { boost::crc_32_type crc; for (pos_type i = row.pos(); i < row.endpos(); ++i) { char_type const b[] = { par_->getChar(i) }; - crc.process_bytes(b, 1); + crc.process_bytes(b, sizeof(char_type)); + if (bparams.trackChanges) { + Change change = par_->lookupChange(i); + char_type const b[] = { static_cast(change.type) }; + // 1 byte is enough to encode Change::Type + crc.process_bytes(b, 1); + } } + + Dimension const & d = row.dimension(); + char_type const b[] = { static_cast(row.sel_beg), + static_cast(row.sel_end), + row.begin_margin_sel, row.end_margin_sel, d.wid, d.asc, d.des}; + crc.process_bytes(b, sizeof(b)); + return crc.checksum(); } -void ParagraphMetrics::updateRowChangeStatus() +void ParagraphMetrics::setPosition(int position) { - size_t const size = rows_.size(); - row_change_status_.resize(size); - row_signature_.resize(size); - - for (size_t i = 0; i != size; ++i) { - // Row signature; has row changed since last update? - size_type const row_sig = calculateRowSignature(rows_[i]); - row_change_status_[i] = row_signature_[i] != row_sig; - row_signature_[i] = row_sig; - } + position_ = position; +} + + +Dimension const & ParagraphMetrics::insetDimension(Inset const * inset) const +{ + InsetDims::const_iterator it = inset_dims_.find(inset); + if (it != inset_dims_.end()) + return it->second; + + static Dimension dummy; + return dummy; +} + + +void ParagraphMetrics::setInsetDimension(Inset const * inset, + Dimension const & dim) +{ + inset_dims_[inset] = dim; } Row & ParagraphMetrics::getRow(pos_type pos, bool boundary) { - BOOST_ASSERT(!rows().empty()); + LBUFERR(!rows().empty()); // If boundary is set we should return the row on which // the character before is inside. @@ -135,7 +155,7 @@ Row & ParagraphMetrics::getRow(pos_type pos, bool boundary) Row const & ParagraphMetrics::getRow(pos_type pos, bool boundary) const { - BOOST_ASSERT(!rows().empty()); + LBUFERR(!rows().empty()); // If boundary is set we should return the row on which // the character before is inside. @@ -154,7 +174,7 @@ Row const & ParagraphMetrics::getRow(pos_type pos, bool boundary) const size_t ParagraphMetrics::pos2row(pos_type pos) const { - BOOST_ASSERT(!rows().empty()); + LBUFERR(!rows().empty()); RowList::const_iterator rit = rows_.end(); RowList::const_iterator const begin = rows_.begin(); @@ -175,20 +195,84 @@ void ParagraphMetrics::dump() const } } -int ParagraphMetrics::rightMargin(Buffer const & buffer) const +int ParagraphMetrics::rightMargin(BufferView const & bv) const { - BufferParams const & params = buffer.params(); - TextClass const & tclass = params.getTextClass(); - docstring trmarg = from_utf8(tclass.rightmargin()); - docstring lrmarg = from_utf8(par_->layout()->rightmargin); + BufferParams const & params = bv.buffer().params(); + DocumentClass const & tclass = params.documentClass(); frontend::FontMetrics const & fm = theFontMetrics(params.getFont()); int const r_margin = - lyx::rightMargin() - + fm.signedWidth(trmarg) - + fm.signedWidth(lrmarg) + bv.rightMargin() + + fm.signedWidth(tclass.rightmargin()) + + fm.signedWidth(par_->layout().rightmargin) * 4 / (par_->getDepth() + 4); return r_margin; } + +int ParagraphMetrics::singleWidth(pos_type pos, Font const & font) const +{ + // The most special cases are handled first. + if (Inset const * inset = par_->getInset(pos)) + return insetDimension(inset).wid; + + char_type c = par_->getChar(pos); + + if (c == '\t') + return 4 * theFontMetrics(font).width(' '); + + if (!isPrintable(c)) + return theFontMetrics(font).width(c); + + Language const * language = font.language(); + if (language->rightToLeft()) { + if (language->lang() == "arabic_arabtex" || + language->lang() == "arabic_arabi" || + language->lang() == "farsi") { + if (Encodings::isArabicComposeChar(c)) + return 0; + c = par_->transformChar(c, pos); + } else if (language->lang() == "hebrew" && + Encodings::isHebrewComposeChar(c)) { + return 0; + } + } + return theFontMetrics(font).width(c); +} + + +bool ParagraphMetrics::hfillExpansion(Row const & row, pos_type pos) const +{ + if (!par_->isHfill(pos)) + return false; + + LASSERT(pos >= row.pos() && pos < row.endpos(), return false); + + // expand at the end of a row only if there is another hfill on the same row + if (pos == row.endpos() - 1) { + for (pos_type i = row.pos(); i < pos; i++) { + if (par_->isHfill(i)) + return true; + } + return false; + } + + // expand at the beginning of a row only if it is the first row of a paragraph + if (pos == row.pos()) + return pos == 0; + + // do not expand in some labels + if (par_->layout().margintype != MARGIN_MANUAL && pos < par_->beginOfBody()) + return false; + + // if there is anything between the first char of the row and + // the specified position that is neither a newline nor an hfill, + // the hfill will be expanded, otherwise it won't + for (pos_type i = row.pos(); i < pos; i++) { + if (!par_->isNewline(i) && !par_->isHfill(i)) + return true; + } + return false; +} + } // namespace lyx