Christophe Teyssier's cel: URL implementation.
Chris Laurel
parent
d0ddfc0781
commit
053534ec2d
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/***************************************************************************
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url.cpp - description
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-------------------
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begin : Wed Aug 7 2002
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copyright : (C) 2002 by chris
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email : chris@tux.teyssier.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <string>
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#include <stdio.h>
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#include "celestiacore.h"
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#include "celengine/astro.h"
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#include "url.h"
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Url::Url(const std::string& str, CelestiaCore *core) {
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urlStr = str;
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appCore = core;
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std::string::size_type pos, endPrevious;
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std::vector<Selection> bodies;
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Simulation *sim = appCore->getSimulation();
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std::map<std::string, std::string> params = parseUrlParams(urlStr);
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if (urlStr.substr(0, 6) != "cel://") {
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urlStr = "";
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return;
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}
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pos = urlStr.find("/", 6);
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if (pos == std::string::npos) pos = urlStr.find("?", 6);
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if (pos == std::string::npos) modeStr = urlStr.substr(6);
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else modeStr = decode_string(urlStr.substr(6, pos - 6));
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if (modeStr == "Freeflight") {
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mode = astro::Universal;
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nbBodies = 0;
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}
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if (modeStr == "Follow") {
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mode = astro::Ecliptical;
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nbBodies = 1;
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}
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if (modeStr == "SyncOrbit") {
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mode = astro::Geographic;
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nbBodies = 1;
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}
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if (modeStr == "Chase") {
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mode = astro::Chase;
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nbBodies = 1;
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}
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if (modeStr == "PhaseLock") {
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mode = astro::PhaseLock;
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nbBodies = 2;
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}
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if (nbBodies == -1) {
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urlStr = "";
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return; // Mode not recognized
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}
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endPrevious = pos;
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int nb = nbBodies, i=1;
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while (nb != 0 && endPrevious != std::string::npos) {
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std::string bodyName="";
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pos = urlStr.find("/", endPrevious + 1);
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if (pos == std::string::npos) pos = urlStr.find("?", endPrevious + 1);
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if (pos == std::string::npos) bodyName = urlStr.substr(endPrevious + 1);
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else bodyName = urlStr.substr(endPrevious + 1, pos - endPrevious - 1);
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endPrevious = pos;
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bodyName = decode_string(bodyName);
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pos = 0;
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if (i==1) body1 = bodyName;
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if (i==2) body2 = bodyName;
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while(pos != std::string::npos) {
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pos = bodyName.find(":", pos + 1);
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if (pos != std::string::npos) bodyName[pos]='/';
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}
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bodies.push_back(sim->findObjectFromPath(bodyName));
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nb--;
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i++;
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}
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if (nb != 0) {
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urlStr = "";
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return; // Number of bodies in Url doesn't match Mode
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}
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if (nbBodies == 0) ref = FrameOfReference();
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if (nbBodies == 1) ref = FrameOfReference(mode, bodies[0]);
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if (nbBodies == 2) ref = FrameOfReference(mode, bodies[0], bodies[1]);
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fromString = true;
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std::string time="";
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pos = urlStr.find("?", endPrevious + 1);
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if (pos == std::string::npos) time = urlStr.substr(endPrevious + 1);
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else time = urlStr.substr(endPrevious + 1, pos - endPrevious -1);
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time = decode_string(time);
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int t;
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date = astro::Date(0.0);
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sscanf(time.substr(0, 4).c_str(), "%04d", &t);
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date.year=t;
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sscanf(time.substr(5, 2).c_str(), "%02d", &t);
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date.month=t;
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sscanf(time.substr(8, 2).c_str(), "%02d", &t);
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date.day=t;
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sscanf(time.substr(11, 2).c_str(), "%02d", &t);
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date.hour=t;
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sscanf(time.substr(14, 2).c_str(), "%02d", &t);
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date.minute=t;
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sscanf(time.substr(17, 2).c_str(), "%02d", &t);
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date.seconds=float(t);
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BigFix x(params["x"].c_str()), y(params["y"].c_str()), z(params["z"].c_str());
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coord = UniversalCoord(x,y,z);
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float ow, ox, oy, oz;
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sscanf(params["ow"].c_str(), "%f", &ow);
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sscanf(params["ox"].c_str(), "%f", &ox);
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sscanf(params["oy"].c_str(), "%f", &oy);
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sscanf(params["oz"].c_str(), "%f", &oz);
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orientation = Quatf(ow, ox, oy, oz);
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if (params["fov"] != "") {
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sscanf(params["fov"].c_str(), "%f", &fieldOfView);
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}
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if (params["ts"] != "") {
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sscanf(params["ts"].c_str(), "%f", &timeScale);
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}
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if (params["rf"] != "") {
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sscanf(params["rf"].c_str(), "%d", &renderFlags);
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}
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if (params["lm"] != "") {
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sscanf(params["lm"].c_str(), "%d", &labelMode);
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}
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if (params["select"] != "") {
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selectedStr = params["select"];
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}
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if (params["track"] != "") {
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trackedStr = params["track"];
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}
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name = modeStr;
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if (body1 != "") name += " " + getBodyShortName(body1);
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if (body2 != "") name += " " + getBodyShortName(body2);
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if (trackedStr != "") name += " -> " + getBodyShortName(trackedStr);
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if (selectedStr != "") name += " [" + getBodyShortName(selectedStr) + "]";
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}
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Url::Url(CelestiaCore* core) {
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appCore = core;
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Simulation *sim = appCore->getSimulation();
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Renderer *renderer = appCore->getRenderer();
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modeStr = getCoordSysName(sim->getFrame().coordSys);
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ref = sim->getFrame();
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urlStr += "cel://" + modeStr;
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if (sim->getFrame().coordSys != astro::Universal) {
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body1 = getSelectionName(sim->getFrame().refObject);
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urlStr += "/" + body1;
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if (sim->getFrame().coordSys == astro::PhaseLock) {
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body2 = getSelectionName(sim->getFrame().targetObject);
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urlStr += "/" + body2;
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}
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}
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char date_str[30];
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date = astro::Date(sim->getTime());
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sprintf(date_str, "%04d-%02d-%02dT%02d:%02d:%02d",
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date.year, date.month, date.day, date.hour, date.minute, int(date.seconds));
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coord = sim->getObserver().getPosition();
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urlStr += std::string("/") + date_str + "?x=" + coord.x.toString();
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urlStr += "&y=" + coord.y.toString();
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urlStr += "&z=" + coord.z.toString();
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orientation = sim->getObserver().getOrientation();
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char buff[255];
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sprintf(buff, "&ow=%f&ox=%f&oy=%f&oz=%f", orientation.w, orientation.x, orientation.y, orientation.z);
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urlStr += buff;
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tracked = sim->getTrackedObject();
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trackedStr = getSelectionName(tracked);
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if (trackedStr != "") urlStr += "&track=" + trackedStr;
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selected = sim->getSelection();
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selectedStr = getSelectionName(selected);
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if (selectedStr != "") urlStr += "&select=" + selectedStr;
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fieldOfView = renderer->getFieldOfView();
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timeScale = sim->getTimeScale();
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renderFlags = renderer->getRenderFlags();
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labelMode = renderer->getLabelMode();
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sprintf(buff, "&fov=%f&ts=%f&rf=%d&lm=%d", fieldOfView,
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timeScale, renderFlags, labelMode);
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urlStr += buff;
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name = modeStr;
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if (body1 != "") name += " " + getBodyShortName(body1);
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if (body2 != "") name += " " + getBodyShortName(body2);
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if (trackedStr != "") name += " -> " + getBodyShortName(trackedStr);
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if (selectedStr != "") name += " [" + getBodyShortName(selectedStr) + "]";
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}
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std::string Url::getAsString() const {
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return urlStr;
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}
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std::string Url::getName() const {
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return name;
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}
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std::string Url::getBodyShortName(const std::string& body) const {
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std::string::size_type pos;
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if (body != "") {
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pos = body.rfind(":");
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if (pos != std::string::npos) return body.substr(pos+1);
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else return body;
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}
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return "";
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}
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std::map<std::string, std::string> Url::parseUrlParams(const std::string& url) const{
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std::string::size_type pos, startName, startValue;
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std::map<std::string, std::string> params;
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pos = url.find("?");
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while (pos != std::string::npos) {
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startName = pos + 1;
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startValue = url.find("=", startName);
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pos = url.find("&", pos + 1);
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if (startValue != std::string::npos) {
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startValue++;
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if (pos != std::string::npos)
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params[url.substr(startName, startValue - startName -1)] = decode_string(url.substr(startValue, pos - startValue));
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else
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params[url.substr(startName, startValue - startName -1)] = decode_string(url.substr(startValue));
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}
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}
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return params;
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}
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std::string Url::getCoordSysName(astro::CoordinateSystem mode) const {
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switch (mode) {
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case astro::Universal:
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return "Freeflight";
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case astro::Ecliptical:
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return "Follow";
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case astro::Geographic:
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return "SyncOrbit";
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case astro::Chase:
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return "Chase";
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case astro::PhaseLock:
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return "PhaseLock";
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}
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return "Unknown";
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}
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std::string Url::getSelectionName(const Selection& selection) const {
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Universe *universe = appCore->getSimulation()->getUniverse();
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if (selection.body != 0) {
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std::string name=selection.body->getName();
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if (selection.body->getSystem() != 0) {
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if (selection.body->getSystem()->getPrimaryBody() != 0) {
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name=selection.body->getSystem()->getPrimaryBody()->getName() + ":" + name;
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}
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if (selection.body->getSystem()->getStar() != 0) {
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name=universe->getStarCatalog()->getStarName(*(selection.body->getSystem()->getStar()))
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+ ":" + name;
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}
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}
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return name;
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}
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if (selection.star != 0) return universe->getStarCatalog()->getStarName(*selection.star);
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if (selection.galaxy != 0) return selection.galaxy->getName();
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return "";
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}
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void Url::goTo() {
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if (urlStr == "") return;
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Simulation *sim = appCore->getSimulation();
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Renderer *renderer = appCore->getRenderer();
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std::string::size_type pos;
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sim->setTime((double) date);
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sim->update(0.0);
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sim->setFrame(ref);
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sim->setObserverPosition(coord);
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sim->setObserverOrientation(orientation);
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renderer->setFieldOfView(fieldOfView);
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sim->setTimeScale(timeScale);
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renderer->setRenderFlags(renderFlags);
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renderer->setLabelMode(labelMode);
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pos = 0;
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while(pos != std::string::npos) {
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pos = selectedStr.find(":", pos + 1);
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if (pos != std::string::npos) selectedStr[pos]='/';
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Selection sel = sim->findObjectFromPath(selectedStr);
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sim->setSelection(sel);
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}
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pos = 0;
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while(pos != std::string::npos) {
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pos = trackedStr.find(":", pos + 1);
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if (pos != std::string::npos) trackedStr[pos]='/';
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Selection sel = sim->findObjectFromPath(trackedStr);
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sim->setTrackedObject(sel);
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}
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}
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Url::~Url() {
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}
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std::string Url::decode_string(const std::string& str) {
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std::string::size_type a=0, b;
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std::string out = "";
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b = str.find("%");
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while (b != std::string::npos) {
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char c;
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out += str.substr(a, b-a);
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std::string c_code = str.substr(b+1, 2);
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sscanf(c_code.c_str(), "%02x", &c);
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out += c;
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a = b + 3;
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b = str.find("%", a);
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}
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out += str.substr(a);
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return out;
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}
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@ -0,0 +1,71 @@
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/***************************************************************************
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url.h - description
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-------------------
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begin : Wed Aug 7 2002
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copyright : (C) 2002 by chris
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email : chris@tux.teyssier.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef _URL_H_
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#define _URL_H_
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#include <string>
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#include "celestiacore.h"
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#include "celengine/astro.h"
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class CelestiaCore;
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class Url
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{
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public:
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// parses str
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Url(const std::string& str, CelestiaCore *core);
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// current url of appCore
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Url(CelestiaCore* appCore);
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~Url();
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std::string getAsString() const;
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std::string getName() const;
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void goTo();
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private:
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std::string urlStr, name;
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std::string modeStr;
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std::string body1, body2, selectedStr, trackedStr;
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CelestiaCore *appCore;
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FrameOfReference ref;
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Selection selected;
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Selection tracked;
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astro::CoordinateSystem mode;
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int nbBodies;
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UniversalCoord coord;
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Quatf orientation;
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float fieldOfView;
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float timeScale;
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int renderFlags;
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int labelMode;
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astro::Date date;
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std::map<std::string, std::string> parseUrlParams(const std::string& url) const;
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std::string getCoordSysName(astro::CoordinateSystem mode) const;
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std::string getSelectionName(const Selection& selection) const;
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std::string getBodyShortName(const std::string& body) const;
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static std::string decode_string(const std::string& str);
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bool fromString;
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};
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#endif
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