mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-05 13:26:21 +00:00
Introducing FontList.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21062 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
parent
58d8b766bf
commit
4d9007bd61
168
src/FontList.cpp
Normal file
168
src/FontList.cpp
Normal file
@ -0,0 +1,168 @@
|
||||
/**
|
||||
* \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 <config.h>
|
||||
|
||||
#include "FontList.h"
|
||||
|
||||
#include <boost/next_prior.hpp>
|
||||
|
||||
#include <algorithm>
|
||||
|
||||
using std::distance;
|
||||
using std::endl;
|
||||
using std::string;
|
||||
using std::ostream;
|
||||
|
||||
namespace lyx {
|
||||
|
||||
|
||||
FontList::iterator FontList::fontIterator(pos_type pos)
|
||||
{
|
||||
static Font dummy;
|
||||
FontTable search_elem(pos, dummy);
|
||||
return lower_bound(list_.begin(), list_.end(), search_elem,
|
||||
matchFT());
|
||||
}
|
||||
|
||||
|
||||
FontList::const_iterator FontList::fontIterator(pos_type pos) const
|
||||
{
|
||||
static Font dummy;
|
||||
FontTable search_elem(pos, dummy);
|
||||
return lower_bound(list_.begin(), list_.end(), search_elem,
|
||||
matchFT());
|
||||
}
|
||||
|
||||
|
||||
Font & FontList::get(pos_type pos)
|
||||
{
|
||||
iterator end = list_.end();
|
||||
iterator it = fontIterator(pos);
|
||||
if (it != end && it->pos == pos)
|
||||
return it->font_;
|
||||
static Font 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 != beg && boost::prior(it)->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 - beg;
|
||||
list_.erase(beg + i);
|
||||
it = beg + i;
|
||||
if (i > 0 && i < list_.size() &&
|
||||
list_[i - 1].font() == list_[i].font()) {
|
||||
list_.erase(beg + i - 1);
|
||||
it = beg + 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::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
|
||||
|
||||
iterator beg = list_.begin();
|
||||
iterator it = beg;
|
||||
iterator endit = list_.end();
|
||||
for (; it != endit; ++it) {
|
||||
if (it->pos() >= pos)
|
||||
break;
|
||||
}
|
||||
size_t const i = distance(beg, it);
|
||||
bool notfound = (it == endit);
|
||||
|
||||
if (!notfound && list_[i].font() == font)
|
||||
return;
|
||||
|
||||
bool begin = pos == 0 || notfound ||
|
||||
(i > 0 && list_[i - 1].pos() == pos - 1);
|
||||
// Is position pos is a beginning of a font block?
|
||||
bool end = !notfound && list_[i].pos() == pos;
|
||||
// Is position pos is the end of a font block?
|
||||
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));
|
||||
} else { // The general case. The block is splitted into 3 blocks
|
||||
list_.insert(list_.begin() + i,
|
||||
FontTable(pos - 1, list_[i].font()));
|
||||
list_.insert(list_.begin() + i + 1,
|
||||
FontTable(pos, font));
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace lyx
|
116
src/FontList.h
Normal file
116
src/FontList.h
Normal file
@ -0,0 +1,116 @@
|
||||
/**
|
||||
* \file FontList.h
|
||||
* This file is part of LyX, the document processor.
|
||||
* Licence details can be found in the file COPYING.
|
||||
*
|
||||
* \author Abdelrazak Younes
|
||||
*
|
||||
* Full author contact details are available in file CREDITS.
|
||||
*/
|
||||
|
||||
#ifndef FONT_LIST_H
|
||||
#define FONT_LIST_H
|
||||
|
||||
#include "Font.h"
|
||||
|
||||
#include "support/types.h"
|
||||
|
||||
#include <vector>
|
||||
|
||||
namespace lyx {
|
||||
|
||||
/** A font entry covers a range of positions. Notice that the
|
||||
entries in the list are inserted in random order.
|
||||
I don't think it's worth the effort to implement a more effective
|
||||
datastructure, because the number of different fonts in a paragraph
|
||||
is limited. (Asger)
|
||||
Nevertheless, I decided to store fontlist_ using a sorted vector:
|
||||
fontlist_ = { {pos_1,font_1} , {pos_2,font_2} , ... } where
|
||||
pos_1 < pos_2 < ..., font_{i-1} != font_i for all i,
|
||||
and font_i covers the chars in positions pos_{i-1}+1,...,pos_i
|
||||
(font_1 covers the chars 0,...,pos_1) (Dekel)
|
||||
*/
|
||||
class FontTable
|
||||
{
|
||||
public:
|
||||
///
|
||||
FontTable(pos_type p, Font const & f)
|
||||
: pos_(p), font_(f)
|
||||
{}
|
||||
///
|
||||
pos_type pos() const { return pos_; }
|
||||
///
|
||||
void pos(pos_type p) { pos_ = p; }
|
||||
///
|
||||
Font const & font() const { return font_; }
|
||||
///
|
||||
void font(Font const & f) { font_ = f;}
|
||||
|
||||
private:
|
||||
friend class FontList;
|
||||
/// End position of paragraph this font attribute covers
|
||||
pos_type pos_;
|
||||
/** Font. Interpretation of the font values:
|
||||
If a value is Font::INHERIT_*, it means that the font
|
||||
attribute is inherited from either the layout of this
|
||||
paragraph or, in the case of nested paragraphs, from the
|
||||
layout in the environment one level up until completely
|
||||
resolved.
|
||||
The values Font::IGNORE_* and Font::TOGGLE are NOT
|
||||
allowed in these font tables.
|
||||
*/
|
||||
Font font_;
|
||||
};
|
||||
|
||||
|
||||
class matchFT
|
||||
{
|
||||
public:
|
||||
/// used by lower_bound and upper_bound
|
||||
int operator()(FontTable const & a, FontTable const & b) const {
|
||||
return a.pos() < b.pos();
|
||||
}
|
||||
};
|
||||
|
||||
///
|
||||
class FontList
|
||||
{
|
||||
public:
|
||||
typedef std::vector<FontTable> List;
|
||||
///
|
||||
typedef List::iterator iterator;
|
||||
///
|
||||
typedef List::const_iterator const_iterator;
|
||||
///
|
||||
iterator begin() { return list_.begin(); }
|
||||
///
|
||||
iterator end() { return list_.end(); }
|
||||
///
|
||||
const_iterator begin() const { return list_.begin(); }
|
||||
///
|
||||
const_iterator end() const { return list_.end(); }
|
||||
///
|
||||
bool empty() const { return list_.empty(); }
|
||||
///
|
||||
void erase(pos_type pos);
|
||||
///
|
||||
iterator fontIterator(pos_type pos);
|
||||
///
|
||||
const_iterator fontIterator(pos_type pos) const;
|
||||
///
|
||||
Font & get(pos_type pos);
|
||||
///
|
||||
void set(pos_type pos, Font const & font);
|
||||
///
|
||||
void increasePosAfterPos(pos_type pos);
|
||||
///
|
||||
void decreasePosAfterPos(pos_type pos);
|
||||
|
||||
private:
|
||||
///
|
||||
List list_;
|
||||
};
|
||||
|
||||
} // namespace lyx
|
||||
|
||||
#endif
|
@ -142,6 +142,8 @@ liblyxcore_la_SOURCES = \
|
||||
Font.h \
|
||||
FontIterator.cpp \
|
||||
FontIterator.h \
|
||||
FontList.cpp \
|
||||
FontList.h \
|
||||
Format.cpp \
|
||||
Format.h \
|
||||
FuncRequest.cpp \
|
||||
|
@ -33,6 +33,7 @@
|
||||
#include "Layout.h"
|
||||
#include "Length.h"
|
||||
#include "Font.h"
|
||||
#include "FontList.h"
|
||||
#include "LyXRC.h"
|
||||
#include "Messages.h"
|
||||
#include "OutputParams.h"
|
||||
@ -73,63 +74,6 @@ using support::suffixIs;
|
||||
using support::rsplit;
|
||||
using support::rtrim;
|
||||
|
||||
namespace {
|
||||
/** A font entry covers a range of positions. Notice that the
|
||||
entries in the list are inserted in random order.
|
||||
I don't think it's worth the effort to implement a more effective
|
||||
datastructure, because the number of different fonts in a paragraph
|
||||
is limited. (Asger)
|
||||
Nevertheless, I decided to store fontlist_ using a sorted vector:
|
||||
fontlist_ = { {pos_1,font_1} , {pos_2,font_2} , ... } where
|
||||
pos_1 < pos_2 < ..., font_{i-1} != font_i for all i,
|
||||
and font_i covers the chars in positions pos_{i-1}+1,...,pos_i
|
||||
(font_1 covers the chars 0,...,pos_1) (Dekel)
|
||||
*/
|
||||
class FontTable
|
||||
{
|
||||
public:
|
||||
///
|
||||
FontTable(pos_type p, Font const & f)
|
||||
: pos_(p), font_(f)
|
||||
{}
|
||||
///
|
||||
pos_type pos() const { return pos_; }
|
||||
///
|
||||
void pos(pos_type p) { pos_ = p; }
|
||||
///
|
||||
Font const & font() const { return font_; }
|
||||
///
|
||||
void font(Font const & f) { font_ = f;}
|
||||
|
||||
private:
|
||||
/// End position of paragraph this font attribute covers
|
||||
pos_type pos_;
|
||||
/** Font. Interpretation of the font values:
|
||||
If a value is Font::INHERIT_*, it means that the font
|
||||
attribute is inherited from either the layout of this
|
||||
paragraph or, in the case of nested paragraphs, from the
|
||||
layout in the environment one level up until completely
|
||||
resolved.
|
||||
The values Font::IGNORE_* and Font::TOGGLE are NOT
|
||||
allowed in these font tables.
|
||||
*/
|
||||
Font font_;
|
||||
};
|
||||
|
||||
|
||||
class matchFT
|
||||
{
|
||||
public:
|
||||
/// used by lower_bound and upper_bound
|
||||
int operator()(FontTable const & a, FontTable const & b) const {
|
||||
return a.pos() < b.pos();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
typedef std::vector<FontTable> FontList;
|
||||
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
@ -137,10 +81,6 @@ typedef std::vector<FontTable> FontList;
|
||||
//
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
|
||||
class Encoding;
|
||||
class Layout;
|
||||
|
||||
|
||||
class Paragraph::Private
|
||||
{
|
||||
public:
|
||||
@ -441,13 +381,7 @@ void Paragraph::Private::insertChar(pos_type pos, value_type c,
|
||||
owner_->text_.insert(owner_->text_.begin() + pos, c);
|
||||
|
||||
// Update the font table.
|
||||
FontTable search_font(pos, Font());
|
||||
for (FontList::iterator it
|
||||
= lower_bound(fontlist_.begin(), fontlist_.end(), search_font, matchFT());
|
||||
it != fontlist_.end(); ++it)
|
||||
{
|
||||
it->pos(it->pos() + 1);
|
||||
}
|
||||
fontlist_.increasePosAfterPos(pos);
|
||||
|
||||
// Update the insets
|
||||
insetlist_.increasePosAfterPos(pos);
|
||||
@ -461,7 +395,7 @@ void Paragraph::insertInset(pos_type pos, Inset * inset,
|
||||
BOOST_ASSERT(pos >= 0 && pos <= size());
|
||||
|
||||
d->insertChar(pos, META_INSET, change);
|
||||
BOOST_ASSERT(d->owner_->text_[pos] == META_INSET);
|
||||
BOOST_ASSERT(text_[pos] == META_INSET);
|
||||
|
||||
// Add a new entry in the insetlist_.
|
||||
d->insetlist_.insert(inset, pos);
|
||||
@ -507,36 +441,8 @@ bool Paragraph::eraseChar(pos_type pos, bool trackChanges)
|
||||
|
||||
text_.erase(text_.begin() + pos);
|
||||
|
||||
// Erase entries in the tables.
|
||||
FontTable search_font(pos, Font());
|
||||
|
||||
FontList::iterator it =
|
||||
lower_bound(d->fontlist_.begin(),
|
||||
d->fontlist_.end(),
|
||||
search_font, matchFT());
|
||||
FontList::iterator begin = d->fontlist_.begin();
|
||||
if (it != d->fontlist_.end() && it->pos() == pos &&
|
||||
(pos == 0 ||
|
||||
(it != begin
|
||||
&& boost::prior(it)->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 - begin;
|
||||
d->fontlist_.erase(begin + i);
|
||||
it = begin + i;
|
||||
if (i > 0 && i < d->fontlist_.size() &&
|
||||
d->fontlist_[i - 1].font() == d->fontlist_[i].font()) {
|
||||
d->fontlist_.erase(begin + i - 1);
|
||||
it = begin + i - 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Update all other entries
|
||||
FontList::iterator fend = d->fontlist_.end();
|
||||
for (; it != fend; ++it)
|
||||
it->pos(it->pos() - 1);
|
||||
// Update the fontlist_
|
||||
d->fontlist_.erase(pos);
|
||||
|
||||
// Update the insetlist_
|
||||
d->insetlist_.decreasePosAfterPos(pos);
|
||||
@ -1380,7 +1286,7 @@ FontSpan Paragraph::fontSpan(pos_type pos) const
|
||||
Font const Paragraph::getFirstFontSettings(BufferParams const & bparams) const
|
||||
{
|
||||
if (!empty() && !d->fontlist_.empty())
|
||||
return d->fontlist_[0].font();
|
||||
return d->fontlist_.begin()->font();
|
||||
|
||||
return Font(Font::ALL_INHERIT, bparams.language);
|
||||
}
|
||||
@ -1516,59 +1422,8 @@ void Paragraph::setFont(pos_type pos, Font const & font)
|
||||
// First, reduce font against layout/label font
|
||||
// Update: The setCharFont() routine in text2.cpp already
|
||||
// reduces font, so we don't need to do that here. (Asger)
|
||||
// No need to simplify this because it will disappear
|
||||
// in a new kernel. (Asger)
|
||||
// Next search font table
|
||||
|
||||
FontList::iterator beg = d->fontlist_.begin();
|
||||
FontList::iterator it = beg;
|
||||
FontList::iterator endit = d->fontlist_.end();
|
||||
for (; it != endit; ++it) {
|
||||
if (it->pos() >= pos)
|
||||
break;
|
||||
}
|
||||
size_t const i = distance(beg, it);
|
||||
bool notfound = (it == endit);
|
||||
|
||||
if (!notfound && d->fontlist_[i].font() == font)
|
||||
return;
|
||||
|
||||
bool begin = pos == 0 || notfound ||
|
||||
(i > 0 && d->fontlist_[i - 1].pos() == pos - 1);
|
||||
// Is position pos is a beginning of a font block?
|
||||
bool end = !notfound && d->fontlist_[i].pos() == pos;
|
||||
// Is position pos is the end of a font block?
|
||||
if (begin && end) { // A single char block
|
||||
if (i + 1 < d->fontlist_.size() &&
|
||||
d->fontlist_[i + 1].font() == font) {
|
||||
// Merge the singleton block with the next block
|
||||
d->fontlist_.erase(d->fontlist_.begin() + i);
|
||||
if (i > 0 && d->fontlist_[i - 1].font() == font)
|
||||
d->fontlist_.erase(d->fontlist_.begin() + i - 1);
|
||||
} else if (i > 0 && d->fontlist_[i - 1].font() == font) {
|
||||
// Merge the singleton block with the previous block
|
||||
d->fontlist_[i - 1].pos(pos);
|
||||
d->fontlist_.erase(d->fontlist_.begin() + i);
|
||||
} else
|
||||
d->fontlist_[i].font(font);
|
||||
} else if (begin) {
|
||||
if (i > 0 && d->fontlist_[i - 1].font() == font)
|
||||
d->fontlist_[i - 1].pos(pos);
|
||||
else
|
||||
d->fontlist_.insert(d->fontlist_.begin() + i,
|
||||
FontTable(pos, font));
|
||||
} else if (end) {
|
||||
d->fontlist_[i].pos(pos - 1);
|
||||
if (!(i + 1 < d->fontlist_.size() &&
|
||||
d->fontlist_[i + 1].font() == font))
|
||||
d->fontlist_.insert(d->fontlist_.begin() + i + 1,
|
||||
FontTable(pos, font));
|
||||
} else { // The general case. The block is splitted into 3 blocks
|
||||
d->fontlist_.insert(d->fontlist_.begin() + i,
|
||||
FontTable(pos - 1, d->fontlist_[i].font()));
|
||||
d->fontlist_.insert(d->fontlist_.begin() + i + 1,
|
||||
FontTable(pos, font));
|
||||
}
|
||||
|
||||
d->fontlist_.set(pos, font);
|
||||
}
|
||||
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user