rename keys.{cpp,h} to bindings.{cpp,h}

src/bindings.h

@@ -0,0 +1,139 @@
+/***************************************************************************
+ *   Copyright (C) 2008-2012 by Andrzej Rybczak                            *
+ *   electricityispower@gmail.com                                          *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
+ ***************************************************************************/
+
+#ifndef _BINDINGS_H
+#define _BINDINGS_H
+
+#include <cassert>
+#include "actions.h"
+#include "macro_utilities.h"
+
+/// Key for binding actions to it. Supports non-ascii characters.
+struct Key
+{
+	enum Type { Standard, NCurses };
+	
+	Key(wchar_t ch, Type ct) : m_char(ch), m_type(ct) { }
+	
+	wchar_t getChar() const {
+		return m_char;
+	}
+	Type getType() const {
+		return m_type;
+	}
+	
+#	define KEYS_DEFINE_OPERATOR(CMP) \
+	bool operator CMP (const Key &k) const { \
+		if (m_char CMP k.m_char) \
+			return true; \
+		if (m_char != k.m_char) \
+			return false; \
+		return m_type CMP k.m_type; \
+	}
+	KEYS_DEFINE_OPERATOR(<);
+	KEYS_DEFINE_OPERATOR(<=);
+	KEYS_DEFINE_OPERATOR(>);
+	KEYS_DEFINE_OPERATOR(>=);
+#	undef KEYS_DEFINE_OPERATOR
+	
+	bool operator==(const Key &k) const {
+		return m_char == k.m_char && m_type == k.m_type;
+	}
+	bool operator!=(const Key &k) const {
+		return !(*this == k);
+	}
+	
+	static Key read(NC::Window &w);
+	static Key noOp;
+	
+	private:
+		wchar_t m_char;
+		Type m_type;
+};
+
+/// Represents either single action or chain of actions bound to a certain key
+struct Binding
+{
+	typedef std::vector<Action *> ActionChain;
+	
+	Binding(ActionType at) : m_is_single(true), m_action(Action::Get(at)) { }
+	Binding(const ActionChain &actions) {
+		assert(actions.size() > 0);
+		if (actions.size() == 1) {
+			m_is_single = true;
+			m_action = actions[0];
+		} else {
+			m_is_single = false;
+			m_chain = new ActionChain(actions);
+		}
+	}
+	
+	bool isSingle() const {
+		return m_is_single;
+	}
+	ActionChain *chain() const {
+		assert(!m_is_single);
+		return m_chain;
+	}
+	Action *action() const {
+		assert(m_is_single);
+		return m_action;
+	}
+	
+private:
+	bool m_is_single;
+	union {
+		Action *m_action;
+		ActionChain *m_chain;
+	};
+};
+
+/// Keybindings configuration
+struct BindingsConfiguration
+{
+	typedef std::multimap<Key, Binding> BindingsMap;
+	typedef BindingsMap::iterator BindingIterator;
+	typedef BindingsMap::const_iterator ConstBindingIterator;
+	
+	bool read(const std::string &file);
+	void generateDefault();
+	
+	std::pair<BindingIterator, BindingIterator> get(const Key &k) {
+		return m_bindings.equal_range(k);
+	}
+	
+	ConstBindingIterator begin() const { return m_bindings.begin(); }
+	ConstBindingIterator end() const { return m_bindings.end(); }
+	
+private:
+	bool notBound(const Key &k) const {
+		return k != Key::noOp && m_bindings.find(k) == m_bindings.end();
+	}
+	
+	template <typename T> void bind(Key k, T t) {
+		m_bindings.insert(std::make_pair(k, Binding(t)));
+	}
+	
+	BindingsMap m_bindings;
+};
+
+extern BindingsConfiguration Bindings;
+
+#endif // _BINDINGS_H