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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18550 a592a061-630c-0410-9148-cb99ea01b6c8
140 lines
3.1 KiB
C++
140 lines
3.1 KiB
C++
// -*- C++ -*-
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/**
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* \file KeyMap.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef KEYMAP_H
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#define KEYMAP_H
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#include "FuncRequest.h"
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#include "frontends/key_state.h"
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#include "frontends/KeySymbol.h"
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#include "support/docstream.h"
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#include <boost/shared_ptr.hpp>
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#include <vector>
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#include <deque>
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namespace lyx {
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class KeySequence;
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/// Defines key maps and actions for key sequences
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class KeyMap {
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public:
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/**
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* Bind a key sequence to an action.
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* @return 0 on success, or position in string seq where error
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* occurs.
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* See KeySequence::parse for the syntax of the seq string
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*/
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size_t bind(std::string const & seq, FuncRequest const & func);
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// Parse a bind file
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bool read(std::string const & bind_file);
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/**
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* print all available keysyms
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* @param forgui true if the string should use translations and
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* special characters.
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*/
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docstring const print(bool forgui) const;
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/**
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* Look up a key press in the keymap.
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* @param key the keysym
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* @param mod the modifiers
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* @param seq the current key sequence so far
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* @return the action / LFUN_COMMAND_PREFIX / LFUN_UNKNOWN_ACTION
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*/
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FuncRequest const &
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lookup(KeySymbolPtr key,
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key_modifier::state mod, KeySequence * seq) const;
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///
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typedef std::deque<KeySequence> Bindings;
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/// Given an action, find all keybindings.
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Bindings findbindings(FuncRequest const & func) const;
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/// Given an action, print the keybindings.
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docstring const printbindings(FuncRequest const & func) const;
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/**
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* Given an action, find the first 1-key binding (if it exists).
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* The KeySymbol pointer is 0 is no key is found.
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* [only used by the Qt/Mac frontend]
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*/
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std::pair<KeySymbol const *, key_modifier::state>
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find1keybinding(FuncRequest const & func) const;
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/**
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* Returns a string of the given keysym, with modifiers.
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* @param key the key as a keysym
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* @param mod the modifiers
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*/
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static std::string const printKeySym(KeySymbol const & key,
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key_modifier::state mod);
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typedef std::pair<key_modifier::state, key_modifier::state> modifier_pair;
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private:
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///
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struct Key {
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/// Keysym
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KeySymbolPtr code;
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/// Modifier masks
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modifier_pair mod;
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/// Keymap for prefix keys
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boost::shared_ptr<KeyMap> table;
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/// Action for !prefix keys
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FuncRequest func;
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};
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/**
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* Define an action for a key sequence.
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* @param r internal recursion level
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*/
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void defkey(KeySequence * seq, FuncRequest const & func,
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unsigned int r = 0);
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/**
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* Given an action, find all keybindings
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* @param func the action
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* @param prefix a sequence to prepend the results
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*/
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Bindings findbindings(FuncRequest const & func,
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KeySequence const & prefix) const;
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/// is the table empty ?
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bool empty() const { return table.empty(); }
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///
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typedef std::vector<Key> Table;
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///
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Table table;
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};
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/// Implementation is in LyX.cpp
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extern KeyMap & theTopLevelKeymap();
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} // namespace lyx
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#endif // KEYMAP_H
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