lyx_mirror/src/kbsequence.C

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/**
* \file kbsequence.C
* Copyright 1995-2002 the LyX Team
* Read the file COPYING
*
* \author John Levon <moz@compsoc.man.ac.uk>
*/
#include <config.h>
#include "gettext.h"
#include "frontends/mouse_state.h"
#include "frontends/LyXKeySymFactory.h"
#include "kbsequence.h"
#include "kbmap.h"
#include "commandtags.h"
#include "debug.h"
using std::make_pair;
int kb_sequence::addkey(LyXKeySymPtr key,
key_modifier::state mod, key_modifier::state nmod)
{
// adding a key to a deleted sequence
// starts a new sequence
if (deleted_) {
deleted_ = false;
sequence.clear();
modifiers.clear();
}
modifiers.push_back(make_pair(mod, nmod));
sequence.push_back(key);
if (curmap) {
return curmap->lookup(key, mod, this);
}
return LFUN_UNKNOWN_ACTION;
}
string::size_type kb_sequence::parse(string const & s)
{
if (s.empty()) return 1;
string::size_type i = 0;
key_modifier::state mod = key_modifier::none;
key_modifier::state nmod = key_modifier::none;
while (i < s.length()) {
if (s[i] == ' ')
++i;
if (i >= s.length())
break;
if (i + 1 < s.length() && s[i + 1] == '-') {
switch (s[i]) {
case 's': case 'S':
mod |= key_modifier::shift;
i += 2;
continue;
case 'c': case 'C':
mod |= key_modifier::ctrl;
i += 2;
continue;
case 'm': case 'M':
mod |= key_modifier::alt;
i += 2;
continue;
default:
return i + 1;
}
} else if (i + 2 < s.length() && s[i] == '~'
&& s[i + 2] == '-') {
switch (s[i + 1]) {
case 's': case 'S':
nmod |= key_modifier::shift;
i += 3;
continue;
case 'c': case 'C':
nmod |= key_modifier::ctrl;
i += 3;
continue;
case 'm': case 'M':
nmod |= key_modifier::alt;
i += 3;
continue;
default:
return i + 2;
}
} else {
string tbuf;
string::size_type j = i;
for (; j < s.length() && s[j] != ' '; ++j)
tbuf += s[j]; // (!!!check bounds :-)
LyXKeySymPtr key(LyXKeySymFactory::create());
key->init(tbuf);
if ( ! key->isOK() ) {
return j;
}
i = j;
addkey(key, mod, nmod);
mod = key_modifier::none;
}
}
// empty sequence?
if (sequence.size() == 0)
return 0;
// everything is fine
return string::npos;
}
string const kb_sequence::print() const
{
string buf;
//if (deleted_)
// return buf;
KeySequence::size_type i, length = sequence.size();
for (i = 0; i < length; ++i) {
buf += kb_keymap::printKeysym(sequence[i], modifiers[i].first);
// append a blank
if (i + 1 < length) {
buf += ' ';
}
}
return buf;
}
string const kb_sequence::printOptions() const
{
string buf;
buf += print();
if (!curmap)
return buf;
buf += _(" options: ");
buf += curmap->print();
return buf;
}
void kb_sequence::mark_deleted()
{
deleted_ = true;
}
void kb_sequence::reset()
{
mark_deleted();
curmap = stdmap;
}
void kb_sequence::clear()
{
sequence.clear();
reset();
}