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f1c24d1009
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4417 a592a061-630c-0410-9148-cb99ea01b6c8
123 lines
2.7 KiB
C++
123 lines
2.7 KiB
C++
// -*- C++ -*-
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/**
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* \file kbsequence.h
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* Copyright 2001 the LyX Team
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* Read the file COPYING
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*/
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#ifndef KBSEQUENCE_H
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#define KBSEQUENCE_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include <config.h>
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#include "frontends/key_state.h"
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#include "frontends/LyXKeySym.h"
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#include "LString.h"
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#include <vector>
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class kb_keymap;
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/// Holds a key sequence and the current and standard keymaps
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class kb_sequence {
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public:
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typedef std::vector<LyXKeySymPtr> KeySequence;
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friend class kb_keymap;
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///
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kb_sequence(kb_keymap * std, kb_keymap * cur)
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: stdmap(std), curmap(cur), deleted_(false) {}
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/**
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* Add a key to the key sequence and look it up in the curmap
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* if the latter is defined.
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* @param keysym the key to add
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* @param mod modifier mask
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* @param nmod which modifiers to mask out for equality test
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* @return the action matching this key sequence or LFUN_UNKNOWN_ACTION
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*/
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int addkey(LyXKeySymPtr keysym, key_modifier::state mod,
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key_modifier::state nmod = key_modifier::none);
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/**
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* Add a sequence of keys from a string to the sequence
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* @return string::npos if OK, else error position in string
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*
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* Keys in the string must be separated with whitespace;
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* Use the keysym names used by XStringToKeysym, f.ex.
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* "Space", "a", "Return", ...
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* Prefixes are S-, C-, M- for shift, control, meta
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* Prefixes can also be ignored by using the Tilde "~"
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* f.ex.: "~S-Space".
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*/
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string::size_type parse(string const & s);
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/**
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* Return the current sequence as a string.
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* @see parse()
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*/
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string const print() const;
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/**
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* Return the current sequence and available options as
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* a string. No options are added if no curmap kb map exists.
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*/
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string const printOptions() const;
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/// Mark the sequence as deleted.
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void mark_deleted();
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/**
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* Return the value of the last keysym in the sequence
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* in the local ISO encoding. If it does not encode
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* in this encoding, return 0.
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*/
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char getLastKeyEncoded() const;
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/// Reset sequence to become "deleted"
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void reset();
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/// clear in full
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void clear();
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bool deleted() const {
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return deleted_;
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}
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/// length of sequence
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KeySequence::size_type length() const {
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return sequence.size();
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}
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/// Keymap to use if a new sequence is starting
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kb_keymap * stdmap;
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/// Keymap to use for the next key
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kb_keymap * curmap;
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private:
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/// get the keysym of last in sequence
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LyXKeySymPtr getsym() const;
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/**
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* Array holding the current key sequence as KeySyms.
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* If sequence[length-1] < 0xff it can be used as ISO8859 char
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*/
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KeySequence sequence;
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typedef std::pair<key_modifier::state, key_modifier::state>
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modifier_pair;
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/// modifiers for keys in the sequence
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std::vector<modifier_pair> modifiers;
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/// is keysequence deleted ?
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bool deleted_;
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};
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#endif
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