hotkey_command.hpp

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/*
   Copyright (C) 2003 - 2018 by David White <dave@whitevine.net>
   Part of the Battle for Wesnoth Project https://www.wesnoth.org/

   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.

   See the COPYING file for more details.
*/

#pragma once

#include "tooltips.hpp"
#include "tstring.hpp"

#include <bitset>
#include <list>
#include <map>
#include <vector>

class config;

namespace hotkey {

/**
 * Available hotkey scopes. The scope is used to allow command from
 * non-overlapping areas of the game share the same key
 */
enum scope {
    SCOPE_MAIN_MENU,
    SCOPE_GAME,
    SCOPE_EDITOR,
    SCOPE_COUNT,
};

enum HOTKEY_COMMAND {
    HOTKEY_CYCLE_UNITS, HOTKEY_CYCLE_BACK_UNITS,
    HOTKEY_UNIT_HOLD_POSITION,
    HOTKEY_END_UNIT_TURN, HOTKEY_LEADER,
    HOTKEY_UNDO, HOTKEY_REDO,
    HOTKEY_ZOOM_IN, HOTKEY_ZOOM_OUT, HOTKEY_ZOOM_DEFAULT,
    HOTKEY_FULLSCREEN, HOTKEY_SCREENSHOT, HOTKEY_MAP_SCREENSHOT, HOTKEY_ACCELERATED,
    HOTKEY_TERRAIN_DESCRIPTION,
    HOTKEY_UNIT_DESCRIPTION, HOTKEY_RENAME_UNIT, HOTKEY_DELETE_UNIT,
    HOTKEY_SAVE_GAME, HOTKEY_SAVE_REPLAY, HOTKEY_SAVE_MAP, HOTKEY_LOAD_GAME,
    HOTKEY_RECRUIT, HOTKEY_REPEAT_RECRUIT, HOTKEY_RECALL, HOTKEY_ENDTURN,
    HOTKEY_TOGGLE_ELLIPSES, HOTKEY_TOGGLE_GRID, HOTKEY_STATUS_TABLE, HOTKEY_MUTE, HOTKEY_MOUSE_SCROLL,
    HOTKEY_SPEAK, HOTKEY_CREATE_UNIT, HOTKEY_CHANGE_SIDE, HOTKEY_KILL_UNIT, HOTKEY_PREFERENCES,
    HOTKEY_OBJECTIVES, HOTKEY_UNIT_LIST, HOTKEY_STATISTICS, HOTKEY_STOP_NETWORK, HOTKEY_START_NETWORK, HOTKEY_SURRENDER, HOTKEY_QUIT_GAME, HOTKEY_QUIT_TO_DESKTOP,
    HOTKEY_LABEL_TEAM_TERRAIN, HOTKEY_LABEL_TERRAIN, HOTKEY_CLEAR_LABELS,HOTKEY_SHOW_ENEMY_MOVES, HOTKEY_BEST_ENEMY_MOVES,
    HOTKEY_DELAY_SHROUD, HOTKEY_UPDATE_SHROUD, HOTKEY_CONTINUE_MOVE,
    HOTKEY_SEARCH, HOTKEY_SPEAK_ALLY, HOTKEY_SPEAK_ALL, HOTKEY_HELP,
    HOTKEY_HELP_ABOUT_SAVELOAD,
    HOTKEY_CHAT_LOG, HOTKEY_LANGUAGE, HOTKEY_ANIMATE_MAP,

    // Replay
    HOTKEY_REPLAY_PLAY, HOTKEY_REPLAY_RESET, HOTKEY_REPLAY_STOP, HOTKEY_REPLAY_NEXT_TURN,
    HOTKEY_REPLAY_NEXT_SIDE, HOTKEY_REPLAY_NEXT_MOVE, HOTKEY_REPLAY_SHOW_EVERYTHING,
    HOTKEY_REPLAY_SHOW_EACH, HOTKEY_REPLAY_SHOW_TEAM1,
    HOTKEY_REPLAY_SKIP_ANIMATION,
    HOTKEY_REPLAY_EXIT,

    // Controls
    HOTKEY_SELECT_HEX, HOTKEY_DESELECT_HEX,
    HOTKEY_MOVE_ACTION, HOTKEY_SELECT_AND_ACTION, HOTKEY_TOUCH_HEX,

    // Camera movement
    HOTKEY_SCROLL_UP, HOTKEY_SCROLL_DOWN, HOTKEY_SCROLL_LEFT, HOTKEY_SCROLL_RIGHT,

    // Dialog control
    HOTKEY_CANCEL, HOTKEY_OKAY,

    // Whiteboard commands
    HOTKEY_WB_TOGGLE,
    HOTKEY_WB_EXECUTE_ACTION, HOTKEY_WB_EXECUTE_ALL_ACTIONS,
    HOTKEY_WB_DELETE_ACTION,
    HOTKEY_WB_BUMP_UP_ACTION, HOTKEY_WB_BUMP_DOWN_ACTION,
    HOTKEY_WB_SUPPOSE_DEAD,

    // Misc.
    HOTKEY_USER_CMD,
    HOTKEY_CUSTOM_CMD,
    HOTKEY_AI_FORMULA,
    HOTKEY_CLEAR_MSG,
    HOTKEY_LABEL_SETTINGS,

    // Minimap
    HOTKEY_MINIMAP_CODING_TERRAIN, HOTKEY_MINIMAP_CODING_UNIT,
    HOTKEY_MINIMAP_DRAW_UNITS, HOTKEY_MINIMAP_DRAW_VILLAGES, HOTKEY_MINIMAP_DRAW_TERRAIN,

    /* Gui2 specific hotkeys. */
    TITLE_SCREEN__RELOAD_WML,
    TITLE_SCREEN__NEXT_TIP,
    TITLE_SCREEN__PREVIOUS_TIP,
    TITLE_SCREEN__TUTORIAL,
    TITLE_SCREEN__CAMPAIGN,
    TITLE_SCREEN__MULTIPLAYER,
    TITLE_SCREEN__ADDONS,
    TITLE_SCREEN__CORES,
    TITLE_SCREEN__EDITOR,
    TITLE_SCREEN__CREDITS,
    TITLE_SCREEN__TEST,
    GLOBAL__HELPTIP,
    LUA_CONSOLE,

    HOTKEY_WML,

    /* Editor commands */
    HOTKEY_EDITOR_CUSTOM_TODS,
    HOTKEY_EDITOR_PARTIAL_UNDO,

    // Palette
    HOTKEY_EDITOR_PALETTE_ITEM_SWAP, HOTKEY_EDITOR_PALETTE_ITEMS_CLEAR,
    HOTKEY_EDITOR_PALETTE_GROUPS, HOTKEY_EDITOR_PALETTE_UPSCROLL, HOTKEY_EDITOR_PALETTE_DOWNSCROLL,

    HOTKEY_EDITOR_REMOVE_LOCATION,
    HOTKEY_EDITOR_PLAYLIST,
    HOTKEY_EDITOR_SCHEDULE,
    HOTKEY_EDITOR_LOCAL_TIME,
    HOTKEY_EDITOR_UNIT_FACING,

    // Unit
    HOTKEY_EDITOR_UNIT_TOGGLE_CANRECRUIT, HOTKEY_EDITOR_UNIT_TOGGLE_RENAMEABLE,
    HOTKEY_EDITOR_UNIT_CHANGE_ID, HOTKEY_EDITOR_UNIT_TOGGLE_LOYAL,

    // Brushes
    HOTKEY_EDITOR_BRUSH_NEXT, HOTKEY_EDITOR_BRUSH_DEFAULT,
    HOTKEY_EDITOR_BRUSH_1, HOTKEY_EDITOR_BRUSH_2, HOTKEY_EDITOR_BRUSH_3, HOTKEY_EDITOR_BRUSH_SW_NE, HOTKEY_EDITOR_BRUSH_NW_SE,

    // Tools
    HOTKEY_EDITOR_TOOL_NEXT,
    HOTKEY_EDITOR_TOOL_PAINT, HOTKEY_EDITOR_TOOL_FILL,
    HOTKEY_EDITOR_TOOL_SELECT, HOTKEY_EDITOR_TOOL_STARTING_POSITION, HOTKEY_EDITOR_TOOL_LABEL,
    HOTKEY_EDITOR_TOOL_UNIT, HOTKEY_EDITOR_TOOL_VILLAGE, HOTKEY_EDITOR_TOOL_ITEM,

    // Select
    HOTKEY_EDITOR_SELECT_ALL, HOTKEY_EDITOR_SELECT_INVERSE, HOTKEY_EDITOR_SELECT_NONE,
    // Clipboard
    HOTKEY_EDITOR_CLIPBOARD_PASTE,
    HOTKEY_EDITOR_CLIPBOARD_ROTATE_CW, HOTKEY_EDITOR_CLIPBOARD_ROTATE_CCW,
    HOTKEY_EDITOR_CLIPBOARD_FLIP_HORIZONTAL, HOTKEY_EDITOR_CLIPBOARD_FLIP_VERTICAL,
    // Selection
    HOTKEY_EDITOR_SELECTION_CUT, HOTKEY_EDITOR_SELECTION_COPY,
    HOTKEY_EDITOR_SELECTION_ROTATE, HOTKEY_EDITOR_SELECTION_FLIP,
    HOTKEY_EDITOR_SELECTION_FILL,
    HOTKEY_EDITOR_SELECTION_EXPORT,
    HOTKEY_EDITOR_SELECTION_RANDOMIZE,

    // Map
    HOTKEY_EDITOR_MAP_NEW, HOTKEY_EDITOR_MAP_LOAD, HOTKEY_EDITOR_MAP_SAVE,
    HOTKEY_EDITOR_MAP_SAVE_AS, HOTKEY_EDITOR_MAP_SAVE_ALL,
    HOTKEY_EDITOR_MAP_REVERT, HOTKEY_EDITOR_MAP_INFO,
    HOTKEY_EDITOR_MAP_CLOSE,
    HOTKEY_EDITOR_MAP_SWITCH,
    HOTKEY_EDITOR_MAP_RESIZE,
    HOTKEY_EDITOR_MAP_GENERATE, HOTKEY_EDITOR_MAP_APPLY_MASK,
    HOTKEY_EDITOR_MAP_CREATE_MASK_TO,

    // Transitions
    HOTKEY_EDITOR_UPDATE_TRANSITIONS, HOTKEY_EDITOR_TOGGLE_TRANSITIONS,
    HOTKEY_EDITOR_AUTO_UPDATE_TRANSITIONS, HOTKEY_EDITOR_PARTIAL_UPDATE_TRANSITIONS, HOTKEY_EDITOR_NO_UPDATE_TRANSITIONS,

    // Refresh
    HOTKEY_EDITOR_REFRESH,
    HOTKEY_EDITOR_REFRESH_IMAGE_CACHE,

    // Draw
    HOTKEY_EDITOR_DRAW_COORDINATES, HOTKEY_EDITOR_DRAW_TERRAIN_CODES, HOTKEY_EDITOR_DRAW_NUM_OF_BITMAPS,

    // Side
    HOTKEY_EDITOR_SIDE_NEW,
    HOTKEY_EDITOR_SIDE_EDIT,
    HOTKEY_EDITOR_SIDE_REMOVE,

    // Area
    HOTKEY_EDITOR_AREA_REMOVE,
    HOTKEY_EDITOR_AREA_ADD,
    HOTKEY_EDITOR_AREA_SAVE,
    HOTKEY_EDITOR_AREA_RENAME,

    // Scenario
    HOTKEY_EDITOR_SCENARIO_EDIT,
    HOTKEY_EDITOR_SCENARIO_NEW,
    HOTKEY_EDITOR_SCENARIO_SAVE_AS,

    /* This item must stay at the end since it is used as terminator for iterating. */
    HOTKEY_NULL
};

enum HOTKEY_CATEGORY {
    HKCAT_GENERAL,
    HKCAT_SAVING,
    HKCAT_MAP,
    HKCAT_UNITS,
    HKCAT_CHAT,
    HKCAT_REPLAY,
    HKCAT_WHITEBOARD,
    HKCAT_SCENARIO,
    HKCAT_PALETTE,
    HKCAT_TOOLS,
    HKCAT_CLIPBOARD,
    HKCAT_DEBUG,
    HKCAT_CUSTOM,
    HKCAT_PLACEHOLDER // Keep this one last
};

using category_name_map_t = std::map<HOTKEY_CATEGORY, std::string>;

/**
 * Returns the map of hotkey categories and their display names.
 *
 * These aren't translated and need be converted to a t_string before
 * being displayed to the player.
 */
const category_name_map_t& get_category_names();

/** Returns a list of all the hotkeys belonging to the given category. */
std::list<HOTKEY_COMMAND> get_hotkeys_by_category(HOTKEY_CATEGORY category);

typedef std::bitset<SCOPE_COUNT> hk_scopes;

/**
 * Do not use this outside hotkeys.cpp.
 * hotkey_command uses t_string which might cause bugs when used at program startup,
 * so use this for the master hotkey list (and only there).
 */
struct hotkey_command_temp
{
    HOTKEY_COMMAND id;

    std::string command;

    /** description, tooltip are untranslated */
    std::string description;

    bool hidden;

    hk_scopes scope;
    HOTKEY_CATEGORY category;

    std::string tooltip;
};

/**
 * Stores all information related to functions that can be bound to hotkeys.
 * this is currently a semi struct: it haves a constructor, but only const-public members.
 */
struct hotkey_command
{
    hotkey_command() = delete;

    /** Constuct a new command from a temporary static hotkey object. */
    hotkey_command(const hotkey_command_temp& temp_command);

    hotkey_command(HOTKEY_COMMAND cmd, const std::string& id, const t_string& desc, bool hidden, bool toggle, hk_scopes scope, HOTKEY_CATEGORY category, const t_string& tooltip);

    hotkey_command(const hotkey_command&) = default;
    hotkey_command& operator=(const hotkey_command&) = default;

    /**
     * the names are strange: the "hotkey::HOTKEY_COMMAND" is named id, and the string to identify the object is called "command"
     * there is some inconstancy with that names in this file.
     * This binds the command to a function. Does not need to be unique.
     */
    HOTKEY_COMMAND id;

    /** The command is unique. */
    std::string command;

    // since the wml_menu hotkey_command s can have different textdomains we need t_string now.
    t_string description;

    /** If hidden then don't show the command in the hotkey preferences. */
    bool hidden;

    /**
     * Toggle hotkeys have some restrictions on what can be bound to them.
     * They require a binding that has two states, "pressed" and "released"
     */
    bool toggle;

    /** The visibility scope of the command. */
    hk_scopes scope;

    /** The category of the command. */
    HOTKEY_CATEGORY category;

    t_string tooltip;

    /** checks weather this is the null hotkey_command */
    bool null() const;

    /** returns the command that is treated as null */
    static const hotkey_command& null_command();

    /**
     * the execute_command argument was changed from HOTKEY_COMMAND to hotkey_command,
     * to be able to call it with HOTKEY_COMMAND, this function was created
     */
    static const hotkey_command& get_command_by_command(HOTKEY_COMMAND command);
};

class scope_changer {
public:
    scope_changer();
    ~scope_changer();
private:
    hk_scopes prev_scope_active_;
};

/**
 * returns a container that contains all currently active hotkey_commands.
 * everything that wants a hotkey, must be in this container
 */
const std::vector<hotkey_command>& get_hotkey_commands();

/** returns the hotkey_command with the given name */
const hotkey_command& get_hotkey_command(const std::string& command);

/** returns the hotkey_command that is treated as null. */
const hotkey_command& get_hotkey_null();

void deactivate_all_scopes();
void set_scope_active(scope s, bool set = true);
void set_active_scopes(hk_scopes s);
bool is_scope_active(scope s);
bool is_scope_active(hk_scopes s);

bool has_hotkey_command(const std::string& id);

/**
 * adds a new wml hotkey to the list, but only if there is no hotkey with that id yet on the list.
 * the object that is created here will be deleted in "delete_all_wml_hotkeys()"
 */
void add_wml_hotkey(const std::string& id, const t_string& description, const config& default_hotkey);

/** deletes all wml hotkeys, should be called after a game has ended */
void delete_all_wml_hotkeys();
/** removes a wml hotkey with the given id, returns true if the deletion was successful */
bool remove_wml_hotkey(const std::string& id);

const std::string& get_description(const std::string& command);
const std::string& get_tooltip(const std::string& command);

void init_hotkey_commands();

void clear_hotkey_commands();

/** returns get_hotkey_command(command).id */
HOTKEY_COMMAND get_id(const std::string& command);
}