/** * \file FontList.cpp * This file is part of LyX, the document processor. * Licence details can be found in the file COPYING. * * \author Asger Alstrup * \author Lars Gullik Bjønnes * \author Jean-Marc Lasgouttes * \author Angus Leeming * \author John Levon * \author André Pönitz * \author Dekel Tsur * \author Jürgen Vigna * \author Abdelrazak Younes * * Full author contact details are available in file CREDITS. */ #include #include "FontList.h" #include "support/lyxalgo.h" using namespace std; namespace lyx { FontList::iterator FontList::fontIterator(pos_type pos) { FontList::iterator it = list_.begin(); FontList::iterator end = list_.end(); for (; it != end; ++it) { if (it->pos() >= pos) break; } return it; } FontList::const_iterator FontList::fontIterator(pos_type pos) const { FontList::const_iterator it = list_.begin(); FontList::const_iterator end = list_.end(); for (; it != end; ++it) { if (it->pos() >= pos) break; } return it; } Font const & FontList::get(pos_type pos) { iterator end = list_.end(); iterator it = fontIterator(pos); if (it != end && it->pos() == pos) return it->font_; static Font const dummy; return dummy; } void FontList::erase(pos_type pos) { // Erase entries in the tables. iterator it = fontIterator(pos); iterator beg = list_.begin(); if (it != list_.end() && it->pos() == pos && (pos == 0 || (it != list_.begin() && prev(it, 1)->pos() == pos - 1))) { // If it is a multi-character font // entry, we just make it smaller // (see update below), otherwise we // should delete it. unsigned int const i = it - list_.begin(); list_.erase(it); if (i >= list_.size()) return; it = list_.begin() + i; if (i > 0 && i < list_.size() && list_[i - 1].font() == list_[i].font()) { list_.erase(beg + i - 1); it = list_.begin() + i - 1; } } // Update all other entries iterator end = list_.end(); for (; it != end; ++it) it->pos(it->pos() - 1); } void FontList::increasePosAfterPos(pos_type pos) { List::iterator end = list_.end(); List::iterator it = fontIterator(pos); for (; it != end; ++it) ++it->pos_; } void FontList::decreasePosAfterPos(pos_type pos) { List::iterator end = list_.end(); List::iterator it = fontIterator(pos); for (; it != end; ++it) --it->pos_; } void FontList::setRange(pos_type startpos, pos_type endpos, Font const & font) { // FIXME: Optimize!!! for (pos_type pos = startpos; pos != endpos; ++pos) set(pos, font); } void FontList::set(pos_type pos, Font const & font) { // No need to simplify this because it will disappear // in a new kernel. (Asger) // Next search font table List::iterator it = fontIterator(pos); bool const found = it != list_.end(); if (found && it->font() == font) // Font is already set. return; size_t const i = distance(list_.begin(), it); // Is position pos a beginning of a font block? bool const begin = pos == 0 || !found || (i > 0 && list_[i - 1].pos() == pos - 1); // Is position pos at the end of a font block? bool const end = found && list_[i].pos() == pos; if (!begin && !end) { // The general case: The block is split into 3 blocks list_.insert(list_.begin() + i, FontTable(pos - 1, list_[i].font())); list_.insert(list_.begin() + i + 1, FontTable(pos, font)); return; } if (begin && end) { // A single char block if (i + 1 < list_.size() && list_[i + 1].font() == font) { // Merge the singleton block with the next block list_.erase(list_.begin() + i); if (i > 0 && list_[i - 1].font() == font) list_.erase(list_.begin() + i - 1); } else if (i > 0 && list_[i - 1].font() == font) { // Merge the singleton block with the previous block list_[i - 1].pos(pos); list_.erase(list_.begin() + i); } else list_[i].font(font); } else if (begin) { if (i > 0 && list_[i - 1].font() == font) list_[i - 1].pos(pos); else list_.insert(list_.begin() + i, FontTable(pos, font)); } else if (end) { list_[i].pos(pos - 1); if (!(i + 1 < list_.size() && list_[i + 1].font() == font)) list_.insert(list_.begin() + i + 1, FontTable(pos, font)); } } FontSize FontList::highestInRange(pos_type startpos, pos_type endpos, FontSize def_size) const { if (list_.empty()) return def_size; List::const_iterator end_it = fontIterator(endpos); const_iterator const end = list_.end(); if (end_it != end) ++end_it; List::const_iterator cit = fontIterator(startpos); FontSize maxsize = FONT_SIZE_TINY; for (; cit != end_it; ++cit) { FontSize size = cit->font().fontInfo().size(); if (size == FONT_SIZE_INHERIT) size = def_size; if (size > maxsize && size <= FONT_SIZE_HUGER) maxsize = size; } return maxsize; } void FontList::validate(LaTeXFeatures & features) const { const_iterator fcit = list_.begin(); const_iterator fend = list_.end(); for (; fcit != fend; ++fcit) fcit->font().validate(features); } } // namespace lyx