lyx_mirror/src/trans_mgr.C

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/**
* \file trans_mgr.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bj<EFBFBD>nnes
* \author Matthias Ettrich
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "trans_mgr.h"
#include "BufferView.h"
#include "CutAndPaste.h"
#include "cursor.h"
#include "debug.h"
#include "lyxrc.h"
#include "lyxtext.h"
#include "trans.h"
#include "insets/insetlatexaccent.h"
#include "support/lstrings.h"
using lyx::support::split;
using std::endl;
using std::string;
using std::pair;
extern string const DoAccent(string const &, tex_accent);
extern string const DoAccent(char, tex_accent);
// TransFSMData
TransFSMData::TransFSMData()
{
deadkey_ = deadkey2_ = 0;
deadkey_info_.accent = deadkey2_info_.accent = TEX_NOACCENT;
}
// TransState
char const TransState::TOKEN_SEP = 4;
// TransInitState
TransInitState::TransInitState()
{
init_state_ = this;
}
string const TransInitState::normalkey(char c)
{
string res;
res = c;
return res;
}
string const TransInitState::deadkey(char c, KmodInfo d)
{
deadkey_ = c;
deadkey_info_ = d;
currentState = deadkey_state_;
return string();
}
// TransDeadkeyState
TransDeadkeyState::TransDeadkeyState()
{
deadkey_state_ = this;
}
string const TransDeadkeyState::normalkey(char c)
{
string res;
KmodException::iterator it = deadkey_info_.exception_list.begin();
KmodException::iterator end = deadkey_info_.exception_list.end();
for (; it != end; ++it) {
if (it->c == c) {
res = it->data;
break;
}
}
if (it == end) {
res = DoAccent(c, deadkey_info_.accent);
}
currentState = init_state_;
return res;
}
string const TransDeadkeyState::deadkey(char c, KmodInfo d)
{
string res;
// Check if the same deadkey was typed twice
if (deadkey_ == c) {
res = deadkey_;
deadkey_ = 0;
deadkey_info_.accent = TEX_NOACCENT;
currentState = init_state_;
return res;
}
// Check if it is a combination or an exception
KmodException::const_iterator cit = deadkey_info_.exception_list.begin();
KmodException::const_iterator end = deadkey_info_.exception_list.end();
for (; cit != end; ++cit) {
if (cit->combined == true && cit->accent == d.accent) {
deadkey2_ = c;
deadkey2_info_ = d;
comb_info_ = (*cit);
currentState = combined_state_;
return string();
}
if (cit->c == c) {
res = cit->data;
deadkey_ = 0;
deadkey_info_.accent = TEX_NOACCENT;
currentState = init_state_;
return res;
}
}
// Not a combination or an exception.
// Output deadkey1 and keep deadkey2
if (deadkey_!= 0)
res = deadkey_;
deadkey_ = c;
deadkey_info_ = d;
currentState = deadkey_state_;
return res;
}
TransCombinedState::TransCombinedState()
{
combined_state_ = this;
}
string const TransCombinedState::normalkey(char c)
{
string const temp = DoAccent(c, deadkey2_info_.accent);
string const res = DoAccent(temp, deadkey_info_.accent);
currentState = init_state_;
return res;
}
string const TransCombinedState::deadkey(char c, KmodInfo d)
{
// Third key in a row. Output the first one and
// reenter with shifted deadkeys
string res;
if (deadkey_ != 0)
res = deadkey_;
res += TOKEN_SEP;
deadkey_ = deadkey2_;
deadkey_info_ = deadkey2_info_;
res += deadkey_state_->deadkey(c, d);
return res;
}
// TransFSM
TransFSM::TransFSM():
TransFSMData(),
TransInitState(),
TransDeadkeyState(),
TransCombinedState()
{
currentState = init_state_;
}
// TransManager
// Initialize static member.
Trans TransManager::default_;
TransManager::TransManager()
: active_(0), t1_(new Trans), t2_(new Trans)
{}
// For the sake of boost::scoped_ptr.
TransManager::~TransManager()
{}
int TransManager::setPrimary(string const & language)
{
if (t1_->getName() == language)
return 0;
return t1_->load(language);
}
int TransManager::setSecondary(string const & language)
{
if (t2_->getName() == language)
return 0;
return t2_->load(language);
}
bool TransManager::setCharset(string const & str)
{
return chset_.loadFile(str);
}
void TransManager::enablePrimary()
{
if (t1_->isDefined())
active_ = t1_.get();
lyxerr[Debug::KBMAP] << "Enabling primary keymap" << endl;
}
void TransManager::enableSecondary()
{
if (t2_->isDefined())
active_ = t2_.get();
lyxerr[Debug::KBMAP] << "Enabling secondary keymap" << endl;
}
void TransManager::disableKeymap()
{
active_ = &default_;
lyxerr[Debug::KBMAP] << "Disabling keymap" << endl;
}
void TransManager::translateAndInsert(char c, LyXText * text)
{
string res = active_->process(c, *this);
// Process with tokens
string temp;
while (res.length() > 0) {
res = split(res, temp, TransState::TOKEN_SEP);
insert(temp, text);
}
}
void TransManager::insertVerbatim(string const & str, LyXText * text)
{
for (string::size_type i = 0, n = str.size(); i < n; ++i)
text->insertChar(text->bv()->cursor(), str[i]);
}
void TransManager::insert(string const & str, LyXText * text)
{
// Go through the character encoding only if the current
// encoding (chset_->name()) matches the current font_norm
// (lyrxc->font_norm)
// Is false to speak about "only if" the current encoding will
// almost always be equal to font_norm.
pair<bool, int> enc = chset_.encodeString(str);
if (chset_.getName() != lyxrc.font_norm ||
!enc.first) {
// Could not find an encoding
InsetLatexAccent ins(str);
if (ins.canDisplay()) {
LCursor & cur = text->bv()->cursor();
lyx::cap::replaceSelection(cur);
cur.insert(new InsetLatexAccent(ins));
cur.posRight();
} else {
insertVerbatim(str, text);
}
return;
}
string const tmp(1, static_cast<char>(enc.second));
insertVerbatim(tmp, text);
}
void TransManager::deadkey(char c, tex_accent accent, LyXText * t)
{
if (c == 0 && active_ != &default_) {
// A deadkey was pressed that cannot be printed
// or a accent command was typed in the minibuffer
KmodInfo i;
if (active_->isAccentDefined(accent, i) == true) {
string const res = trans_fsm_
.currentState->deadkey(c, i);
insert(res, t);
return;
}
}
if (active_ == &default_ || c == 0) {
KmodInfo i;
i.accent = accent;
i.data.erase();
string res = trans_fsm_.currentState->deadkey(c, i);
insert(res, t);
} else {
// Go through the translation
translateAndInsert(c, t);
}
}