C++ input_manager::set_timeout方法代码示例

const std::string &input_context::handle_input( const int timeout )
{
    inp_mngr.set_timeout( timeout );
    const std::string &result = handle_input();
    inp_mngr.reset_timeout();
    return result;
}

void input_context::display_help()
{
    inp_mngr.set_timeout(-1);
    // Shamelessly stolen from help.cpp
    WINDOW *w_help = newwin(FULL_SCREEN_HEIGHT - 2, FULL_SCREEN_WIDTH - 2,
                            1 + (int)((TERMY > FULL_SCREEN_HEIGHT) ? (TERMY - FULL_SCREEN_HEIGHT) / 2 : 0),
                            1 + (int)((TERMX > FULL_SCREEN_WIDTH) ? (TERMX - FULL_SCREEN_WIDTH) / 2 : 0));

    // has the user changed something?
    bool changed = false;
    // keybindings before the user changed anything.
    input_manager::t_action_contexts old_action_contexts(inp_mngr.action_contexts);
    // current status: adding/removing/showing keybindings
    enum { s_remove, s_add, s_add_global, s_show } status = s_show;
    // copy of registered_actions, but without the ANY_INPUT and COORDINATE, which should not be shown
    std::vector<std::string> org_registered_actions(registered_actions);
    std::vector<std::string>::iterator any_input = std::find(org_registered_actions.begin(),
            org_registered_actions.end(), ANY_INPUT);
    if (any_input != org_registered_actions.end()) {
        org_registered_actions.erase(any_input);
    }
    std::vector<std::string>::iterator coordinate = std::find(org_registered_actions.begin(),
            org_registered_actions.end(), COORDINATE);
    if (coordinate != org_registered_actions.end()) {
        org_registered_actions.erase(coordinate);
    }

    // colors of the keybindings
    static const nc_color global_key = c_ltgray;
    static const nc_color local_key = c_ltgreen;
    static const nc_color unbound_key = c_ltred;
    // (vertical) scroll offset
    size_t scroll_offset = 0;
    // height of the area usable for display of keybindings, excludes headers & borders
    const size_t display_height = FULL_SCREEN_HEIGHT - 9 - 2; // -2 for the border
    // width of the legend
    const size_t legwidth = FULL_SCREEN_WIDTH - 4 - 2;
    // keybindings help
    std::ostringstream legend;
    legend << "<color_" << string_from_color(unbound_key) << ">" << _("Unbound keys") << "</color>\n";
    legend << "<color_" << string_from_color(local_key) << ">" <<
           _("Keybinding active only on this screen") << "</color>\n";
    legend << "<color_" << string_from_color(global_key) << ">" << _("Keybinding active globally") <<
           "</color>\n";
    legend << _("Press - to remove keybinding\nPress + to add local keybinding\nPress = to add global keybinding\n");

    input_context ctxt("HELP_KEYBINDINGS");
    ctxt.register_action("UP", _("Scroll up"));
    ctxt.register_action("DOWN", _("Scroll down"));
    ctxt.register_action("PAGE_DOWN");
    ctxt.register_action("PAGE_UP");
    ctxt.register_action("REMOVE");
    ctxt.register_action("ADD_LOCAL");
    ctxt.register_action("ADD_GLOBAL");
    ctxt.register_action("QUIT");
    ctxt.register_action("ANY_INPUT");

    if (category != "HELP_KEYBINDINGS") {
        // avoiding inception!
        ctxt.register_action("HELP_KEYBINDINGS");
    }

    std::string hotkeys = ctxt.get_available_single_char_hotkeys(display_help_hotkeys);

    while(true) {
        werase(w_help);
        draw_border(w_help);
        draw_scrollbar(w_help, scroll_offset, display_height, org_registered_actions.size() - display_height, 8);
        mvwprintz(w_help, 0, (FULL_SCREEN_WIDTH - utf8_width(_("Keybindings"))) / 2 - 1,
                  c_ltred, " %s ", _("Keybindings"));

        fold_and_print(w_help, 1, 2, legwidth, c_white, legend.str());

        for (size_t i = 0; i + scroll_offset < org_registered_actions.size() && i < display_height; i++) {
            const std::string &action_id = org_registered_actions[i + scroll_offset];

            bool overwrite_default;
            const action_attributes &attributes = inp_mngr.get_action_attributes(action_id, category,
                                                  &overwrite_default);

            char invlet;
            if (i < hotkeys.size()) {
                invlet = hotkeys[i];
            } else {
                invlet = ' ';
            }

            if (status == s_add_global && overwrite_default) {
                // We're trying to add a global, but this action has a local
                // defined, so gray out the invlet.
                mvwprintz(w_help, i + 8, 2, c_dkgray, "%c ", invlet);
            } else if (status == s_add || status == s_add_global) {
                mvwprintz(w_help, i + 8, 2, c_blue, "%c ", invlet);
            } else if (status == s_remove) {
                mvwprintz(w_help, i + 8, 2, c_blue, "%c ", invlet);
            } else {
                mvwprintz(w_help, i + 8, 2, c_blue, "  ");
            }
            nc_color col;
            if (attributes.input_events.empty()) {
//.........这里部分代码省略.........