724 lines
18 KiB
C++
724 lines
18 KiB
C++
// fg_props.cxx -- support for FlightGear properties.
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//
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// Written by David Megginson, started 2000.
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//
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// Copyright (C) 2000, 2001 David Megginson - david@megginson.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#include "config.h"
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#include <simgear/compiler.h>
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#include <simgear/structure/exception.hxx>
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#include <simgear/props/props_io.hxx>
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#include <simgear/misc/strutils.hxx>
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#include <simgear/timing/sg_time.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <simgear/scene/model/particles.hxx>
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#include <simgear/sound/soundmgr.hxx>
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#include <GUI/gui.h>
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#include "globals.hxx"
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#include "fg_props.hxx"
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static bool frozen = false; // FIXME: temporary
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using std::string;
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////////////////////////////////////////////////////////////////////////
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// Default property bindings (not yet handled by any module).
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////////////////////////////////////////////////////////////////////////
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struct LogClassMapping {
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sgDebugClass c;
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string name;
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LogClassMapping(sgDebugClass cc, string nname) { c = cc; name = nname; }
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};
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LogClassMapping log_class_mappings [] = {
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LogClassMapping(SG_NONE, "none"),
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LogClassMapping(SG_TERRAIN, "terrain"),
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LogClassMapping(SG_ASTRO, "astro"),
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LogClassMapping(SG_FLIGHT, "flight"),
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LogClassMapping(SG_INPUT, "input"),
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LogClassMapping(SG_GL, "gl"),
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LogClassMapping(SG_VIEW, "view"),
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LogClassMapping(SG_COCKPIT, "cockpit"),
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LogClassMapping(SG_GENERAL, "general"),
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LogClassMapping(SG_MATH, "math"),
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LogClassMapping(SG_EVENT, "event"),
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LogClassMapping(SG_AIRCRAFT, "aircraft"),
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LogClassMapping(SG_AUTOPILOT, "autopilot"),
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LogClassMapping(SG_IO, "io"),
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LogClassMapping(SG_CLIPPER, "clipper"),
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LogClassMapping(SG_NETWORK, "network"),
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LogClassMapping(SG_INSTR, "instrumentation"),
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LogClassMapping(SG_ATC, "atc"),
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LogClassMapping(SG_NASAL, "nasal"),
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LogClassMapping(SG_SYSTEMS, "systems"),
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LogClassMapping(SG_AI, "ai"),
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LogClassMapping(SG_ENVIRONMENT, "environment"),
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LogClassMapping(SG_SOUND, "sound"),
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LogClassMapping(SG_NAVAID, "navaid"),
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LogClassMapping(SG_GUI, "gui"),
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LogClassMapping(SG_TERRASYNC, "terrasync"),
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LogClassMapping(SG_UNDEFD, "")
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};
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/**
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* Get the logging classes.
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*/
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// XXX Making the result buffer be global is a band-aid that hopefully
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// delays its destruction 'til after its last use.
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namespace
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{
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string loggingResult;
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}
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static const char *
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getLoggingClasses ()
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{
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sgDebugClass classes = sglog().get_log_classes();
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loggingResult.clear();
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for (int i = 0; log_class_mappings[i].c != SG_UNDEFD; i++) {
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if ((classes&log_class_mappings[i].c) > 0) {
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if (!loggingResult.empty())
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loggingResult += '|';
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loggingResult += log_class_mappings[i].name;
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}
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}
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return loggingResult.c_str();
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}
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static void
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addLoggingClass (const string &name)
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{
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sgDebugClass classes = sglog().get_log_classes();
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for (int i = 0; log_class_mappings[i].c != SG_UNDEFD; i++) {
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if (name == log_class_mappings[i].name) {
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sglog().set_log_classes(sgDebugClass(classes|log_class_mappings[i].c));
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return;
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}
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}
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SG_LOG(SG_GENERAL, SG_WARN, "Unknown logging class: " << name);
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}
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/**
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* Set the logging classes.
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*/
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void
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setLoggingClasses (const char * c)
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{
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string classes = c;
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sglog().set_log_classes(SG_NONE);
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if (classes == "none") {
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SG_LOG(SG_GENERAL, SG_INFO, "Disabled all logging classes");
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return;
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}
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if (classes.empty() || classes == "all") { // default
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sglog().set_log_classes(SG_ALL);
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SG_LOG(SG_GENERAL, SG_INFO, "Enabled all logging classes: "
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<< getLoggingClasses());
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return;
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}
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string rest = classes;
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string name = "";
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string::size_type sep = rest.find('|');
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if (sep == string::npos)
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sep = rest.find(',');
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while (sep != string::npos) {
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name = rest.substr(0, sep);
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rest = rest.substr(sep+1);
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addLoggingClass(name);
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sep = rest.find('|');
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if (sep == string::npos)
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sep = rest.find(',');
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}
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addLoggingClass(rest);
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SG_LOG(SG_GENERAL, SG_INFO, "Set logging classes to "
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<< getLoggingClasses());
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}
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/**
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* Get the logging priority.
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*/
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static const char *
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getLoggingPriority ()
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{
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switch (sglog().get_log_priority()) {
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case SG_BULK:
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return "bulk";
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case SG_DEBUG:
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return "debug";
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case SG_INFO:
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return "info";
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case SG_WARN:
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return "warn";
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case SG_ALERT:
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case SG_POPUP:
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return "alert";
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default:
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SG_LOG(SG_GENERAL, SG_WARN, "Internal: Unknown logging priority number: "
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<< sglog().get_log_priority());
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return "unknown";
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}
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}
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/**
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* Set the logging priority.
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*/
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void
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setLoggingPriority (const char * p)
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{
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if (p == 0)
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return;
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string priority = p;
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if (priority.empty()) {
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sglog().set_log_priority(SG_INFO);
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} else {
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try {
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sglog().set_log_priority(logstream::priorityFromString(priority));
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} catch (std::exception& e) {
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SG_LOG(SG_GENERAL, SG_WARN, "Unknown logging priority: " << priority);
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}
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}
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SG_LOG(SG_GENERAL, SG_DEBUG, "Logging priority is " << getLoggingPriority());
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}
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/**
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* Return the current frozen state.
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*/
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static bool
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getFreeze ()
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{
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return frozen;
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}
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/**
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* Set the current frozen state.
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*/
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static void
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setFreeze (bool f)
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{
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frozen = f;
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// Pause the particle system
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auto p = simgear::ParticlesGlobalManager::instance();
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p->setFrozen(f);
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}
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/**
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* Return the number of milliseconds elapsed since simulation started.
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*/
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static double
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getElapsedTime_sec ()
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{
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return globals->get_sim_time_sec();
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}
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/**
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* Return the current Zulu time.
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*/
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static const char *
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getDateString ()
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{
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static char buf[64]; // FIXME
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SGTime * st = globals->get_time_params();
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if (!st) {
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buf[0] = 0;
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return buf;
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}
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struct tm * t = st->getGmt();
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sprintf(buf, "%.4d-%.2d-%.2dT%.2d:%.2d:%.2d",
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t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
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t->tm_hour, t->tm_min, t->tm_sec);
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return buf;
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}
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/**
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* Set the current Zulu time.
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*/
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static void
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setDateString (const char * date_string)
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{
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SGTime * st = globals->get_time_params();
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struct tm * current_time = st->getGmt();
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struct tm new_time;
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// Scan for basic ISO format
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// YYYY-MM-DDTHH:MM:SS
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int ret = sscanf(date_string, "%d-%d-%dT%d:%d:%d",
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&(new_time.tm_year), &(new_time.tm_mon),
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&(new_time.tm_mday), &(new_time.tm_hour),
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&(new_time.tm_min), &(new_time.tm_sec));
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// Be pretty picky about this, so
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// that strange things don't happen
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// if the save file has been edited
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// by hand.
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if (ret != 6) {
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SG_LOG(SG_INPUT, SG_WARN, "Date/time string " << date_string
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<< " not in YYYY-MM-DDTHH:MM:SS format; skipped");
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return;
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}
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// OK, it looks like we got six
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// values, one way or another.
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new_time.tm_year -= 1900;
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new_time.tm_mon -= 1;
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// Now, tell flight gear to use
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// the new time. This was far
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// too difficult, by the way.
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long int warp =
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mktime(&new_time) - mktime(current_time) + globals->get_warp();
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fgSetInt("/sim/time/warp", warp);
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}
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/**
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* Return the GMT as a string.
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*/
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static const char *
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getGMTString ()
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{
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static char buf[16];
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SGTime * st = globals->get_time_params();
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if (!st) {
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buf[0] = 0;
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return buf;
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}
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struct tm *t = st->getGmt();
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snprintf(buf, 16, "%.2d:%.2d:%.2d",
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t->tm_hour, t->tm_min, t->tm_sec);
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return buf;
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}
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////////////////////////////////////////////////////////////////////////
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// Tie the properties.
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////////////////////////////////////////////////////////////////////////
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SGConstPropertyNode_ptr FGProperties::_longDeg;
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SGConstPropertyNode_ptr FGProperties::_latDeg;
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SGConstPropertyNode_ptr FGProperties::_lonLatformat;
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using namespace simgear;
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const char* FGProperties::getLongitudeString ()
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{
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const double d = _longDeg->getDoubleValue();
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auto format = static_cast<strutils::LatLonFormat>(_lonLatformat->getIntValue());
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const char c = d < 0.0 ? 'W' : 'E';
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static char longitudeBuffer[64];
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const auto s = strutils::formatLatLonValueAsString(d, format, c);
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memcpy(longitudeBuffer, s.c_str(), s.size() + 1);
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return longitudeBuffer;
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}
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const char* FGProperties::getLatitudeString ()
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{
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const double d = _latDeg->getDoubleValue();
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auto format = static_cast<strutils::LatLonFormat>(_lonLatformat->getIntValue());
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const char c = d < 0.0 ? 'S' : 'N';
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static char latitudeBuffer[64];
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const auto s = strutils::formatLatLonValueAsString(d, format, c);
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memcpy(latitudeBuffer, s.c_str(), s.size() + 1);
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return latitudeBuffer;
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}
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FGProperties::FGProperties ()
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{
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}
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FGProperties::~FGProperties ()
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{
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}
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void
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FGProperties::init ()
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{
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}
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static SGPropertyNode_ptr initDoubleNode(const std::string& path, const double v)
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{
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auto r = fgGetNode(path, true);
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if (r->getType() == simgear::props::NONE) {
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r->setDoubleValue(v);
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}
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return r;
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}
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void
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FGProperties::bind ()
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{
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_longDeg = fgGetNode("/position/longitude-deg", true);
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_latDeg = fgGetNode("/position/latitude-deg", true);
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_lonLatformat = fgGetNode("/sim/lon-lat-format", true);
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_offset = fgGetNode("/sim/time/local-offset", true);
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// utc date/time
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_uyear = fgGetNode("/sim/time/utc/year", true);
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_umonth = fgGetNode("/sim/time/utc/month", true);
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_uday = fgGetNode("/sim/time/utc/day", true);
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_uhour = fgGetNode("/sim/time/utc/hour", true);
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_umin = fgGetNode("/sim/time/utc/minute", true);
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_usec = fgGetNode("/sim/time/utc/second", true);
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_uwday = fgGetNode("/sim/time/utc/weekday", true);
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_udsec = fgGetNode("/sim/time/utc/day-seconds", true);
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// real local date/time
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_ryear = fgGetNode("/sim/time/real/year", true);
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_rmonth = fgGetNode("/sim/time/real/month", true);
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_rday = fgGetNode("/sim/time/real/day", true);
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_rhour = fgGetNode("/sim/time/real/hour", true);
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_rmin = fgGetNode("/sim/time/real/minute", true);
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_rsec = fgGetNode("/sim/time/real/second", true);
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_rwday = fgGetNode("/sim/time/real/weekday", true);
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_tiedProperties.setRoot(globals->get_props());
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// Simulation
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_tiedProperties.Tie("/sim/logging/priority", getLoggingPriority, setLoggingPriority);
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_tiedProperties.Tie("/sim/logging/classes", getLoggingClasses, setLoggingClasses);
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_tiedProperties.Tie("/sim/freeze/master", getFreeze, setFreeze);
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_tiedProperties.Tie<double>("/sim/time/elapsed-sec", getElapsedTime_sec);
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_tiedProperties.Tie("/sim/time/gmt", getDateString, setDateString);
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fgSetArchivable("/sim/time/gmt");
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_tiedProperties.Tie<const char*>("/sim/time/gmt-string", getGMTString);
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// Position
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_tiedProperties.Tie<const char*>("/position/latitude-string", getLatitudeString);
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_tiedProperties.Tie<const char*>("/position/longitude-string", getLongitudeString);
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_headingMagnetic = initDoubleNode("/orientation/heading-magnetic-deg", 0.0);
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_trackMagnetic = initDoubleNode("/orientation/track-magnetic-deg", 0.0);
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_magVar = initDoubleNode("/environment/magnetic-variation-deg", 0.0);
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_trueHeading = initDoubleNode("/orientation/heading-deg", 0.0);
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_trueTrack = initDoubleNode("/orientation/track-deg", 0.0);
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}
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void
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FGProperties::unbind ()
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{
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_tiedProperties.Untie();
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// drop static references to properties
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_longDeg = 0;
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_latDeg = 0;
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_lonLatformat = 0;
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}
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void
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FGProperties::update (double dt)
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{
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_offset->setIntValue(globals->get_time_params()->get_local_offset());
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// utc date/time
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struct tm *u = globals->get_time_params()->getGmt();
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_uyear->setIntValue(u->tm_year + 1900);
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_umonth->setIntValue(u->tm_mon + 1);
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_uday->setIntValue(u->tm_mday);
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_uhour->setIntValue(u->tm_hour);
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_umin->setIntValue(u->tm_min);
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_usec->setIntValue(u->tm_sec);
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_uwday->setIntValue(u->tm_wday);
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_udsec->setIntValue(u->tm_hour * 3600 + u->tm_min * 60 + u->tm_sec);
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|
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// real local date/time
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time_t real = time(0);
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struct tm *r = localtime(&real);
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_ryear->setIntValue(r->tm_year + 1900);
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_rmonth->setIntValue(r->tm_mon + 1);
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_rday->setIntValue(r->tm_mday);
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_rhour->setIntValue(r->tm_hour);
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_rmin->setIntValue(r->tm_min);
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_rsec->setIntValue(r->tm_sec);
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_rwday->setIntValue(r->tm_wday);
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const double magvar = _magVar->getDoubleValue();
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const auto hdgMag = SGMiscd::normalizePeriodic(0, 360.0, _trueHeading->getDoubleValue() - magvar);
|
||
_headingMagnetic->setDoubleValue(hdgMag);
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const auto trackMag = SGMiscd::normalizePeriodic(0, 360.0, _trueTrack->getDoubleValue() - magvar);
|
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_trackMagnetic->setDoubleValue(trackMag);
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}
|
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|
||
|
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// Register the subsystem.
|
||
SGSubsystemMgr::Registrant<FGProperties> registrantFGProperties;
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Save and restore.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
|
||
/**
|
||
* Save the current state of the simulator to a stream.
|
||
*/
|
||
bool
|
||
fgSaveFlight (std::ostream &output, bool write_all)
|
||
{
|
||
|
||
fgSetBool("/sim/presets/onground", false);
|
||
fgSetArchivable("/sim/presets/onground");
|
||
fgSetBool("/sim/presets/trim", false);
|
||
fgSetArchivable("/sim/presets/trim");
|
||
fgSetString("/sim/presets/speed-set", "UVW");
|
||
fgSetArchivable("/sim/presets/speed-set");
|
||
|
||
try {
|
||
writeProperties(output, globals->get_props(), write_all);
|
||
} catch (const sg_exception &e) {
|
||
guiErrorMessage("Error saving flight: ", e);
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
/**
|
||
* Restore the current state of the simulator from a stream.
|
||
*/
|
||
bool
|
||
fgLoadFlight (std::istream &input)
|
||
{
|
||
SGPropertyNode props;
|
||
try {
|
||
readProperties(input, &props);
|
||
} catch (const sg_exception &e) {
|
||
guiErrorMessage("Error reading saved flight: ", e);
|
||
return false;
|
||
}
|
||
|
||
fgSetBool("/sim/presets/onground", false);
|
||
fgSetBool("/sim/presets/trim", false);
|
||
fgSetString("/sim/presets/speed-set", "UVW");
|
||
|
||
copyProperties(&props, globals->get_props());
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
bool
|
||
fgLoadProps (const std::string& path, SGPropertyNode * props, bool in_fg_root, int default_mode)
|
||
{
|
||
SGPath fullpath;
|
||
if (in_fg_root) {
|
||
SGPath loadpath(globals->get_fg_root());
|
||
loadpath.append(path);
|
||
fullpath = loadpath;
|
||
} else {
|
||
fullpath = SGPath::fromUtf8(path);
|
||
}
|
||
|
||
try {
|
||
readProperties(fullpath, props, default_mode);
|
||
} catch (const sg_exception &e) {
|
||
guiErrorMessage("Error reading properties: ", e);
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Property convenience functions.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
SGPropertyNode *
|
||
fgGetNode (const char * path, bool create)
|
||
{
|
||
return globals->get_props()->getNode(path, create);
|
||
}
|
||
|
||
SGPropertyNode *
|
||
fgGetNode (const char * path, int index, bool create)
|
||
{
|
||
return globals->get_props()->getNode(path, index, create);
|
||
}
|
||
|
||
bool
|
||
fgHasNode (const char * path)
|
||
{
|
||
return (fgGetNode(path, false) != 0);
|
||
}
|
||
|
||
void
|
||
fgAddChangeListener (SGPropertyChangeListener * listener, const char * path)
|
||
{
|
||
fgGetNode(path, true)->addChangeListener(listener);
|
||
}
|
||
|
||
void
|
||
fgAddChangeListener (SGPropertyChangeListener * listener,
|
||
const char * path, int index)
|
||
{
|
||
fgGetNode(path, index, true)->addChangeListener(listener);
|
||
}
|
||
|
||
bool
|
||
fgGetBool (const char * name, bool defaultValue)
|
||
{
|
||
return globals->get_props()->getBoolValue(name, defaultValue);
|
||
}
|
||
|
||
int
|
||
fgGetInt (const char * name, int defaultValue)
|
||
{
|
||
return globals->get_props()->getIntValue(name, defaultValue);
|
||
}
|
||
|
||
long
|
||
fgGetLong (const char * name, long defaultValue)
|
||
{
|
||
return globals->get_props()->getLongValue(name, defaultValue);
|
||
}
|
||
|
||
float
|
||
fgGetFloat (const char * name, float defaultValue)
|
||
{
|
||
return globals->get_props()->getFloatValue(name, defaultValue);
|
||
}
|
||
|
||
double
|
||
fgGetDouble (const char * name, double defaultValue)
|
||
{
|
||
return globals->get_props()->getDoubleValue(name, defaultValue);
|
||
}
|
||
|
||
const char *
|
||
fgGetString (const char * name, const char * defaultValue)
|
||
{
|
||
return globals->get_props()->getStringValue(name, defaultValue);
|
||
}
|
||
|
||
bool
|
||
fgSetBool (const char * name, bool val)
|
||
{
|
||
return globals->get_props()->setBoolValue(name, val);
|
||
}
|
||
|
||
bool
|
||
fgSetInt (const char * name, int val)
|
||
{
|
||
return globals->get_props()->setIntValue(name, val);
|
||
}
|
||
|
||
bool
|
||
fgSetLong (const char * name, long val)
|
||
{
|
||
return globals->get_props()->setLongValue(name, val);
|
||
}
|
||
|
||
bool
|
||
fgSetFloat (const char * name, float val)
|
||
{
|
||
return globals->get_props()->setFloatValue(name, val);
|
||
}
|
||
|
||
bool
|
||
fgSetDouble (const char * name, double val)
|
||
{
|
||
return globals->get_props()->setDoubleValue(name, val);
|
||
}
|
||
|
||
bool
|
||
fgSetString (const char * name, const char * val)
|
||
{
|
||
return globals->get_props()->setStringValue(name, val);
|
||
}
|
||
|
||
void
|
||
fgSetArchivable (const char * name, bool state)
|
||
{
|
||
SGPropertyNode * node = globals->get_props()->getNode(name);
|
||
if (node == 0)
|
||
SG_LOG(SG_GENERAL, SG_DEBUG,
|
||
"Attempt to set archive flag for non-existant property "
|
||
<< name);
|
||
else
|
||
node->setAttribute(SGPropertyNode::ARCHIVE, state);
|
||
}
|
||
|
||
void
|
||
fgSetReadable (const char * name, bool state)
|
||
{
|
||
SGPropertyNode * node = globals->get_props()->getNode(name);
|
||
if (node == 0)
|
||
SG_LOG(SG_GENERAL, SG_DEBUG,
|
||
"Attempt to set read flag for non-existant property "
|
||
<< name);
|
||
else
|
||
node->setAttribute(SGPropertyNode::READ, state);
|
||
}
|
||
|
||
void
|
||
fgSetWritable (const char * name, bool state)
|
||
{
|
||
SGPropertyNode * node = globals->get_props()->getNode(name);
|
||
if (node == 0)
|
||
SG_LOG(SG_GENERAL, SG_DEBUG,
|
||
"Attempt to set write flag for non-existant property "
|
||
<< name);
|
||
else
|
||
node->setAttribute(SGPropertyNode::WRITE, state);
|
||
}
|
||
|
||
void
|
||
fgUntie(const char * name)
|
||
{
|
||
SGPropertyNode* node = globals->get_props()->getNode(name);
|
||
if (!node) {
|
||
SG_LOG(SG_GENERAL, SG_WARN, "fgUntie: unknown property " << name);
|
||
return;
|
||
}
|
||
|
||
if (!node->isTied()) {
|
||
return;
|
||
}
|
||
|
||
if (!node->untie()) {
|
||
SG_LOG(SG_GENERAL, SG_WARN, "Failed to untie property " << name);
|
||
}
|
||
}
|
||
|
||
|
||
// end of fg_props.cxx
|