Aegisub/aegisub/libaegisub/include/libaegisub/hotkey.h
Thomas Goyne 3c18ed542c Clean up libaegisub includes
Consistently use the C++ names for headers rather than a combination of the
C and C++ names.

Remove empty LAGI_PRE blocks.

Remove checks for both AGI_PRE and LAGI_PRE and change a check for only
AGI_PRE to LAGI_PRE.

Originally committed to SVN as r5516.
2011-07-26 22:25:21 +00:00

135 lines
4.3 KiB
C++

// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file hotkey.h
/// @brief Hotkey handler
/// @ingroup hotkey menu event window
#ifndef LAGI_PRE
#include <cmath>
#include <map>
#include <memory>
#include <string>
#include <vector>
#endif
namespace json { class Object; }
namespace agi {
namespace hotkey {
class Hotkey;
/// Hotkey instance.
extern Hotkey *hotkey;
/// @class Combo
/// A Combo represents a linear sequence of characters set in an std::vector. This makes up
/// a single combination, or "Hotkey".
class Combo {
friend class Hotkey;
public:
/// Linear key sequence that forms a combination or "Combo"
typedef std::vector<std::string> ComboMap;
/// Constructor
/// @param ctx Context
/// @param cmd Command name
Combo(std::string const& ctx, std::string const& cmd): cmd_name(cmd), context(ctx) {}
/// Destructor
~Combo() {}
/// String representation of the Combo
std::string Str() const;
/// String suitable for usage in a menu.
std::string StrMenu() const;
/// Get the literal combo map.
/// @return ComboMap (std::vector) of linear key sequence.
const ComboMap& Get() const { return key_map; }
/// Command name triggered by the combination.
/// @return Command name
const std::string& CmdName() const { return cmd_name; }
/// Context this Combo is triggered in.
const std::string& Context() const { return context; }
private:
ComboMap key_map; ///< Map.
const std::string cmd_name; ///< Command name.
const std::string context; ///< Context
/// Insert a key into the ComboMap.
/// @param key Key to insert.
void KeyInsert(std::string key) { key_map.push_back(key); }
};
/// @class Hotkey
/// Holds the map of Combo instances and handles searching for matching key sequences.
class Hotkey {
public:
/// Constructor
/// @param file Location of user config file.
/// @param default_config Default config.
Hotkey(const std::string &file, const std::string &default_config);
/// Destructor.
~Hotkey();
/// Scan for a matching key.
/// @param context Context requested.
/// @param str Hyphen separated key sequence.
/// @param always Enable the "Always" override context
/// @param[out] cmd Command found.
bool Scan(const std::string &context, const std::string &str, bool always, std::string &cmd) const;
/// Get the string representation of the hotkeys for the given command
/// @param context Context requested
/// @param command Command name
/// @return A vector of all hotkeys for that command in the context
std::vector<std::string> GetHotkeys(const std::string &context, const std::string &command) const;
/// Get a string representation of a hotkeys for the given command
/// @param context Context requested
/// @param command Command name
/// @return A hotkey for the given command or "" if there are none
std::string GetHotkey(const std::string &context, const std::string &command) const;
private:
typedef std::multimap<std::string, Combo> HotkeyMap; ///< Map to hold Combo instances.
HotkeyMap str_map; ///< String representation -> Combo
HotkeyMap cmd_map; ///< Command name -> Combo
const std::string config_file; ///< Default user config location.
/// Build hotkey map.
/// @param context Context being parsed.
/// @param object json::Object holding items for context being parsed.
void BuildHotkey(std::string const& context, const json::Object& object);
/// Insert Combo into HotkeyMap instance.
/// @param combo Combo to insert.
void ComboInsert(Combo const& combo);
/// Write active Hotkey configuration to disk.
void Flush();
};
} // namespace hotkey
} // namespace agi