lyx_mirror/src/kbmap.C
André Pönitz 6c300f72a2 move everything into namespace lyx
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15422 a592a061-630c-0410-9148-cb99ea01b6c8
2006-10-21 00:16:43 +00:00

351 lines
7.3 KiB
C

/**
* \file kbmap.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author John Levon
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "kbmap.h"
#include "debug.h"
#include "kbsequence.h"
#include "LyXAction.h"
#include "lyxlex.h"
#include "frontends/LyXKeySym.h"
#include "support/filetools.h"
#include <sstream>
namespace lyx {
using support::i18nLibFileSearch;
using std::endl;
using std::string;
string const kb_keymap::printKeySym(LyXKeySym const & key,
key_modifier::state mod)
{
string buf;
string const s = key.getSymbolName();
if (mod & key_modifier::shift)
buf += "S-";
if (mod & key_modifier::ctrl)
buf += "C-";
if (mod & key_modifier::alt)
buf += "M-";
buf += s;
return buf;
}
string const kb_keymap::printKey(kb_key const & key) const
{
return key.code->print(key.mod.first);
}
string::size_type kb_keymap::bind(string const & seq, FuncRequest const & func)
{
if (lyxerr.debugging(Debug::KBMAP)) {
lyxerr << "BIND: Sequence `"
<< seq << "' Action `"
<< func.action << '\'' << endl;
}
kb_sequence k(0, 0);
string::size_type const res = k.parse(seq);
if (res == string::npos) {
defkey(&k, func);
} else {
lyxerr[Debug::KBMAP] << "Parse error at position " << res
<< " in key sequence '" << seq << "'."
<< endl;
}
return res;
}
namespace {
enum BindTags {
BN_BIND,
BN_BINDFILE
};
keyword_item bindTags[] = {
{ "\\bind", BN_BIND },
{ "\\bind_file", BN_BINDFILE }
};
}
bool kb_keymap::read(string const & bind_file)
{
const int bindCount = sizeof(bindTags) / sizeof(keyword_item);
LyXLex lexrc(bindTags, bindCount);
if (lyxerr.debugging(Debug::PARSER))
lexrc.printTable(lyxerr);
string const tmp = i18nLibFileSearch("bind", bind_file, "bind");
lexrc.setFile(tmp);
if (!lexrc.isOK()) {
lyxerr << "kb_keymap::read: cannot open bind file:"
<< tmp << endl;
return false;
}
lyxerr[Debug::KBMAP] << "Reading bind file:" << tmp << endl;
bool error = false;
while (lexrc.isOK()) {
switch (lexrc.lex()) {
case LyXLex::LEX_UNDEF:
lexrc.printError("Unknown tag `$$Token'");
error = true;
continue;
case LyXLex::LEX_FEOF:
continue;
case BN_BIND:
{
string seq, cmd;
if (lexrc.next()) {
seq = lexrc.getString();
} else {
lexrc.printError("BN_BIND: Missing key sequence");
error = true;
break;
}
if (lexrc.next(true)) {
cmd = lexrc.getString();
} else {
lexrc.printError("BN_BIND: missing command");
error = true;
break;
}
FuncRequest func = lyxaction.lookupFunc(cmd);
if (func. action == LFUN_UNKNOWN_ACTION) {
lexrc.printError("BN_BIND: Unknown LyX"
" function `$$Token'");
error = true;
break;
}
bind(seq, func);
break;
}
case BN_BINDFILE:
if (lexrc.next()) {
string const tmp(lexrc.getString());
error |= !read(tmp);
} else {
lexrc.printError("BN_BINDFILE: Missing file name");
error = true;
break;
}
break;
}
}
if (error)
lyxerr << "kb_keymap::read: error while reading bind file:"
<< tmp << endl;
return !error;
}
FuncRequest const &
kb_keymap::lookup(LyXKeySymPtr key,
key_modifier::state mod, kb_sequence * seq) const
{
static FuncRequest const unknown(LFUN_UNKNOWN_ACTION);
if (table.empty()) {
seq->curmap = seq->stdmap;
seq->mark_deleted();
return unknown;
}
Table::const_iterator end = table.end();
for (Table::const_iterator cit = table.begin(); cit != end; ++cit) {
key_modifier::state mask(cit->mod.second);
key_modifier::state check =
static_cast<key_modifier::state>(mod & ~mask);
if (*(cit->code) == *key && cit->mod.first == check) {
// match found
if (cit->table.get()) {
// this is a prefix key - set new map
seq->curmap = cit->table.get();
static FuncRequest prefix(LFUN_COMMAND_PREFIX);
return prefix;
} else {
// final key - reset map
seq->curmap = seq->stdmap;
seq->mark_deleted();
return cit->func;
}
}
}
// error - key not found:
seq->curmap = seq->stdmap;
seq->mark_deleted();
return unknown;
}
string const kb_keymap::print() const
{
string buf;
Table::const_iterator end = table.end();
for (Table::const_iterator cit = table.begin(); cit != end; ++cit) {
buf += printKey((*cit));
buf += ' ';
}
return buf;
}
void kb_keymap::defkey(kb_sequence * seq,
FuncRequest const & func, unsigned int r)
{
LyXKeySymPtr code = seq->sequence[r];
if (!code->isOK())
return;
key_modifier::state const mod1 = seq->modifiers[r].first;
key_modifier::state const mod2 = seq->modifiers[r].second;
// check if key is already there
Table::iterator end = table.end();
for (Table::iterator it = table.begin(); it != end; ++it) {
if (*(code) == *(it->code)
&& mod1 == it->mod.first
&& mod2 == it->mod.second) {
// overwrite binding
if (r + 1 == seq->length()) {
lyxerr[Debug::KBMAP]
<< "Warning: New binding for '"
<< seq->print()
<< "' is overriding old binding..."
<< endl;
if (it->table.get()) {
it->table.reset();
}
it->func = func;
it->func.origin = FuncRequest::KEYBOARD;
return;
} else if (!it->table.get()) {
lyxerr << "Error: New binding for '" << seq->print()
<< "' is overriding old binding..."
<< endl;
return;
} else {
it->table->defkey(seq, func, r + 1);
return;
}
}
}
Table::iterator newone = table.insert(table.end(), kb_key());
newone->code = code;
newone->mod = seq->modifiers[r];
if (r + 1 == seq->length()) {
newone->func = func;
newone->func.origin = FuncRequest::KEYBOARD;
newone->table.reset();
return;
} else {
newone->table.reset(new kb_keymap);
newone->table->defkey(seq, func, r + 1);
return;
}
}
string const kb_keymap::printbindings(FuncRequest const & func) const
{
std::ostringstream res;
Bindings bindings = findbindings(func);
for (Bindings::const_iterator cit = bindings.begin();
cit != bindings.end() ; ++cit)
res << '[' << cit->print() << ']';
return res.str();
}
kb_keymap::Bindings
kb_keymap::findbindings(FuncRequest const & func) const
{
return findbindings(func, kb_sequence(0, 0));
}
kb_keymap::Bindings
kb_keymap::findbindings(FuncRequest const & func,
kb_sequence const & prefix) const
{
Bindings res;
if (table.empty()) return res;
Table::const_iterator end = table.end();
for (Table::const_iterator cit = table.begin();
cit != end; ++cit) {
if (cit->table.get()) {
kb_sequence seq = prefix;
seq.addkey(cit->code, cit->mod.first);
Bindings res2 =
cit->table->findbindings(func, seq);
res.insert(res.end(), res2.begin(), res2.end());
} else if (cit->func == func) {
kb_sequence seq = prefix;
seq.addkey(cit->code, cit->mod.first);
res.push_back(seq);
}
}
return res;
}
std::pair<LyXKeySym const *, key_modifier::state>
kb_keymap::find1keybinding(FuncRequest const & func) const
{
Table::const_iterator end = table.end();
for (Table::const_iterator cit = table.begin();
cit != end; ++cit) {
if (!cit->table.get() && cit->func == func)
return std::make_pair(cit->code.get(), cit->mod.first);
}
return std::make_pair<LyXKeySym const *, key_modifier::state>(0, key_modifier::none);
}
} // namespace lyx