subsurface/core/qthelper.cpp
Robert C. Helling dc55ee4a23 Update exif.cpp from upstream
Signed-off-by: Robert C. Helling <helling@atdotde.de>
2017-02-19 15:29:40 -08:00

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#include "qthelper.h"
#include "helpers.h"
#include "gettextfromc.h"
#include "statistics.h"
#include "membuffer.h"
#include "subsurfacesysinfo.h"
#include "version.h"
#include "divecomputer.h"
#include "time.h"
#include "gettextfromc.h"
#include <sys/time.h>
#include "exif.h"
#include "file.h"
#include "prefs-macros.h"
#include <QFile>
#include <QRegExp>
#include <QDir>
#include <QDebug>
#include <QSettings>
#include <QStandardPaths>
#include <QJsonDocument>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QNetworkAccessManager>
#include <QNetworkProxy>
#include <QDateTime>
#include <QImageReader>
#include <QtConcurrent>
#include <QFont>
#include <QApplication>
#include <QTextDocument>
#include <libxslt/documents.h>
const char *existing_filename;
static QLocale loc;
#define translate(_context, arg) trGettext(arg)
static const QString DEGREE_SIGNS("dD" UTF8_DEGREE);
QString weight_string(int weight_in_grams)
{
QString str;
if (get_units()->weight == units::KG) {
int gr = weight_in_grams % 1000;
int kg = weight_in_grams / 1000;
if (kg >= 20.0)
str = QString("%1").arg(kg + (gr >= 500 ? 1 : 0));
else
str = QString("%1.%2").arg(kg).arg((unsigned)(gr + 50) / 100);
} else {
double lbs = grams_to_lbs(weight_in_grams);
if (lbs >= 40.0)
lbs = rint(lbs + 0.5);
else
lbs = rint(lbs + 0.05);
str = QString("%1").arg(lbs, 0, 'f', lbs >= 40.0 ? 0 : 1);
}
return (str);
}
QString distance_string(int distanceInMeters)
{
QString str;
if(get_units()->length == units::METERS) {
if (distanceInMeters >= 1000)
str = QString(translate("gettextFromC", "%1km")).arg(distanceInMeters / 1000);
else
str = QString(translate("gettextFromC", "%1m")).arg(distanceInMeters);
} else {
double miles = m_to_mile(distanceInMeters);
if (miles >= 1.0)
str = QString(translate("gettextFromC", "%1mi")).arg((int)miles);
else
str = QString(translate("gettextFromC", "%1yd")).arg((int)(miles * 1760));
}
return str;
}
extern "C" const char *printGPSCoords(int lat, int lon)
{
unsigned int latdeg, londeg;
unsigned int latmin, lonmin;
double latsec, lonsec;
QString lath, lonh, result;
if (!lat && !lon)
return strdup("");
if (prefs.coordinates_traditional) {
lath = lat >= 0 ? translate("gettextFromC", "N") : translate("gettextFromC", "S");
lonh = lon >= 0 ? translate("gettextFromC", "E") : translate("gettextFromC", "W");
lat = abs(lat);
lon = abs(lon);
latdeg = lat / 1000000U;
londeg = lon / 1000000U;
latmin = (lat % 1000000U) * 60U;
lonmin = (lon % 1000000U) * 60U;
latsec = (latmin % 1000000) * 60;
lonsec = (lonmin % 1000000) * 60;
result.sprintf("%u%s%02d\'%06.3f\"%s %u%s%02d\'%06.3f\"%s",
latdeg, UTF8_DEGREE, latmin / 1000000, latsec / 1000000, lath.toUtf8().data(),
londeg, UTF8_DEGREE, lonmin / 1000000, lonsec / 1000000, lonh.toUtf8().data());
} else {
result.sprintf("%f %f", (double) lat / 1000000.0, (double) lon / 1000000.0);
}
return strdup(result.toUtf8().data());
}
/**
* Try to parse in a generic manner a coordinate.
*/
static bool parseCoord(const QString& txt, int& pos, const QString& positives,
const QString& negatives, const QString& others,
double& value)
{
bool numberDefined = false, degreesDefined = false,
minutesDefined = false, secondsDefined = false;
double number = 0.0;
int posBeforeNumber = pos;
int sign = 0;
value = 0.0;
while (pos < txt.size()) {
if (txt[pos].isDigit()) {
if (numberDefined)
return false;
QRegExp numberRe("(\\d+(?:[\\.,]\\d+)?).*");
if (!numberRe.exactMatch(txt.mid(pos)))
return false;
number = numberRe.cap(1).toDouble();
numberDefined = true;
posBeforeNumber = pos;
pos += numberRe.cap(1).size() - 1;
} else if (positives.indexOf(txt[pos]) >= 0) {
if (sign != 0)
return false;
sign = 1;
if (degreesDefined || numberDefined) {
//sign after the degrees =>
//at the end of the coordinate
++pos;
break;
}
} else if (negatives.indexOf(txt[pos]) >= 0) {
if (sign != 0) {
if (others.indexOf(txt[pos]) >= 0)
//special case for the '-' sign => next coordinate
break;
return false;
}
sign = -1;
if (degreesDefined || numberDefined) {
//sign after the degrees =>
//at the end of the coordinate
++pos;
break;
}
} else if (others.indexOf(txt[pos]) >= 0) {
//we are at the next coordinate.
break;
} else if (DEGREE_SIGNS.indexOf(txt[pos]) >= 0 ||
(txt[pos].isSpace() && !degreesDefined && numberDefined)) {
if (!numberDefined)
return false;
if (degreesDefined) {
//next coordinate => need to put back the number
pos = posBeforeNumber;
numberDefined = false;
break;
}
value += number;
numberDefined = false;
degreesDefined = true;
} else if (txt[pos] == '\'' || (txt[pos].isSpace() && !minutesDefined && numberDefined)) {
if (!numberDefined || minutesDefined)
return false;
value += number / 60.0;
numberDefined = false;
minutesDefined = true;
} else if (txt[pos] == '"' || (txt[pos].isSpace() && !secondsDefined && numberDefined)) {
if (!numberDefined || secondsDefined)
return false;
value += number / 3600.0;
numberDefined = false;
secondsDefined = true;
} else if ((numberDefined || minutesDefined || secondsDefined) &&
(txt[pos] == ',' || txt[pos] == ';')) {
// next coordinate coming up
// eat the ',' and any subsequent white space
while (++pos < txt.size() && txt[pos].isSpace())
/* nothing */ ;
break;
} else {
return false;
}
++pos;
}
if (!degreesDefined && numberDefined) {
value = number; //just a single number => degrees
} else if (!minutesDefined && numberDefined) {
value += number / 60.0;
} else if (!secondsDefined && numberDefined) {
value += number / 3600.0;
} else if (numberDefined) {
return false;
}
if (sign == -1) value *= -1.0;
return true;
}
/**
* Parse special coordinate formats that cannot be handled by parseCoord.
*/
static bool parseSpecialCoords(const QString& txt, double& latitude, double& longitude) {
QRegExp xmlFormat("(-?\\d+(?:\\.\\d+)?),?\\s+(-?\\d+(?:\\.\\d+)?)");
if (xmlFormat.exactMatch(txt)) {
latitude = xmlFormat.cap(1).toDouble();
longitude = xmlFormat.cap(2).toDouble();
return true;
}
return false;
}
bool parseGpsText(const QString &gps_text, double *latitude, double *longitude)
{
static const QString POS_LAT = QString("+N") + translate("gettextFromC", "N");
static const QString NEG_LAT = QString("-S") + translate("gettextFromC", "S");
static const QString POS_LON = QString("+E") + translate("gettextFromC", "E");
static const QString NEG_LON = QString("-W") + translate("gettextFromC", "W");
//remove the useless spaces (but keep the ones separating numbers)
static const QRegExp SPACE_CLEANER("\\s*([" + POS_LAT + NEG_LAT + POS_LON +
NEG_LON + DEGREE_SIGNS + "'\"\\s])\\s*");
const QString normalized = gps_text.trimmed().toUpper().replace(SPACE_CLEANER, "\\1");
if (normalized.isEmpty()) {
*latitude = 0.0;
*longitude = 0.0;
return true;
}
if (parseSpecialCoords(normalized, *latitude, *longitude))
return true;
int pos = 0;
return parseCoord(normalized, pos, POS_LAT, NEG_LAT, POS_LON + NEG_LON, *latitude) &&
parseCoord(normalized, pos, POS_LON, NEG_LON, "", *longitude) &&
pos == normalized.size();
}
#if 0 // we'll need something like this for the dive site management, eventually
bool gpsHasChanged(struct dive *dive, struct dive *master, const QString &gps_text, bool *parsed_out)
{
double latitude, longitude;
int latudeg, longudeg;
bool ignore;
bool *parsed = parsed_out ?: &ignore;
*parsed = true;
/* if we have a master and the dive's gps address is different from it,
* don't change the dive */
if (master && (master->latitude.udeg != dive->latitude.udeg ||
master->longitude.udeg != dive->longitude.udeg))
return false;
if (!(*parsed = parseGpsText(gps_text, &latitude, &longitude)))
return false;
latudeg = rint(1000000 * latitude);
longudeg = rint(1000000 * longitude);
/* if dive gps didn't change, nothing changed */
if (dive->latitude.udeg == latudeg && dive->longitude.udeg == longudeg)
return false;
/* ok, update the dive and mark things changed */
dive->latitude.udeg = latudeg;
dive->longitude.udeg = longudeg;
return true;
}
#endif
QList<int> getDivesInTrip(dive_trip_t *trip)
{
QList<int> ret;
int i;
struct dive *d;
for_each_dive (i, d) {
if (d->divetrip == trip) {
ret.push_back(get_divenr(d));
}
}
return ret;
}
// we need this to be uniq, but also make sure
// it doesn't change during the life time of a Subsurface session
// oh, and it has no meaning whatsoever - that's why we have the
// silly initial number and increment by 3 :-)
int dive_getUniqID(struct dive *d)
{
static QSet<int> ids;
static int maxId = 83529;
int id = d->id;
if (id) {
if (!ids.contains(id)) {
qDebug() << "WTF - only I am allowed to create IDs";
ids.insert(id);
}
return id;
}
maxId += 3;
id = maxId;
Q_ASSERT(!ids.contains(id));
ids.insert(id);
return id;
}
static xmlDocPtr get_stylesheet_doc(const xmlChar *uri, xmlDictPtr, int, void *, xsltLoadType)
{
QFile f(QLatin1String(":/xslt/") + (const char *)uri);
if (!f.open(QIODevice::ReadOnly)) {
if (verbose > 0) {
qDebug() << "cannot open stylesheet" << QLatin1String(":/xslt/") + (const char *)uri << f.errorString();
return NULL;
}
}
/* Load and parse the data */
QByteArray source = f.readAll();
xmlDocPtr doc = xmlParseMemory(source, source.size());
return doc;
}
extern "C" xsltStylesheetPtr get_stylesheet(const char *name)
{
// this needs to be done only once, but doesn't hurt to run every time
xsltSetLoaderFunc(get_stylesheet_doc);
// get main document:
xmlDocPtr doc = get_stylesheet_doc((const xmlChar *)name, NULL, 0, NULL, XSLT_LOAD_START);
if (!doc)
return NULL;
// xsltSetGenericErrorFunc(stderr, NULL);
xsltStylesheetPtr xslt = xsltParseStylesheetDoc(doc);
if (!xslt) {
xmlFreeDoc(doc);
return NULL;
}
return xslt;
}
extern "C" timestamp_t picture_get_timestamp(char *filename)
{
easyexif::EXIFInfo exif;
memblock mem;
int retval;
// filename might not be the actual filename, so let's go via the hash.
if (readfile(localFilePath(QString(filename)).toUtf8().data(), &mem) <= 0)
return 0;
retval = exif.parseFrom((const unsigned char *)mem.buffer, (unsigned)mem.size);
free(mem.buffer);
if (retval != PARSE_EXIF_SUCCESS)
return 0;
return exif.epoch();
}
extern "C" char *move_away(const char *old_path)
{
if (verbose > 1)
qDebug() << "move away" << old_path;
QDir oldDir(old_path);
QDir newDir;
QString newPath;
int i = 0;
do {
newPath = QString(old_path) + QString(".%1").arg(++i);
newDir.setPath(newPath);
} while(newDir.exists());
if (verbose > 1)
qDebug() << "renaming to" << newPath;
if (!oldDir.rename(old_path, newPath)) {
if (verbose)
qDebug() << "rename of" << old_path << "to" << newPath << "failed";
// this next one we only try on Windows... if we are on a different platform
// we simply give up and return an empty string
#ifdef WIN32
if (subsurface_dir_rename(old_path, qPrintable(newPath)) == 0)
#endif
return strdup("");
}
return strdup(qPrintable(newPath));
}
extern "C" char *get_file_name(const char *fileName)
{
QFileInfo fileInfo(fileName);
return strdup(fileInfo.fileName().toUtf8());
}
extern "C" void copy_image_and_overwrite(const char *cfileName, const char *path, const char *cnewName)
{
QString fileName(cfileName);
QString newName(path);
newName += cnewName;
QFile file(newName);
if (file.exists())
file.remove();
if (!QFile::copy(fileName, newName))
qDebug() << "copy of" << fileName << "to" << newName << "failed";
}
extern "C" bool string_sequence_contains(const char *string_sequence, const char *text)
{
if (same_string(text, "") || same_string(string_sequence, ""))
return false;
QString stringSequence(string_sequence);
QStringList strings = stringSequence.split(",", QString::SkipEmptyParts);
Q_FOREACH (const QString& string, strings) {
if (string.trimmed().compare(QString(text).trimmed(), Qt::CaseInsensitive) == 0)
return true;
}
return false;
}
static bool lessThan(const QPair<QString, int> &a, const QPair<QString, int> &b)
{
return a.second < b.second;
}
void selectedDivesGasUsed(QVector<QPair<QString, int> > &gasUsedOrdered)
{
int i, j;
struct dive *d;
QMap<QString, int> gasUsed;
for_each_dive (i, d) {
if (!d->selected)
continue;
volume_t diveGases[MAX_CYLINDERS] = {};
get_gas_used(d, diveGases);
for (j = 0; j < MAX_CYLINDERS; j++)
if (diveGases[j].mliter) {
QString gasName = gasname(&d->cylinder[j].gasmix);
gasUsed[gasName] += diveGases[j].mliter;
}
}
Q_FOREACH(const QString& gas, gasUsed.keys()) {
gasUsedOrdered.append(qMakePair(gas, gasUsed[gas]));
}
qSort(gasUsedOrdered.begin(), gasUsedOrdered.end(), lessThan);
}
QString getUserAgent()
{
QString arch;
// fill in the system data - use ':' as separator
// replace all other ':' with ' ' so that this is easy to parse
#ifdef SUBSURFACE_MOBILE
QString userAgent = QString("Subsurface-mobile:%1(%2):").arg(subsurface_mobile_version()).arg(subsurface_canonical_version());
#else
QString userAgent = QString("Subsurface:%1:").arg(subsurface_canonical_version());
#endif
userAgent.append(SubsurfaceSysInfo::prettyOsName().replace(':', ' ') + ":");
arch = SubsurfaceSysInfo::buildCpuArchitecture().replace(':', ' ');
userAgent.append(arch);
if (arch == "i386")
userAgent.append("/" + SubsurfaceSysInfo::currentCpuArchitecture());
userAgent.append(":" + uiLanguage(NULL));
return userAgent;
}
extern "C" const char *subsurface_user_agent()
{
static QString uA = getUserAgent();
return strdup(qPrintable(uA));
}
/* TOOD: Move this to SettingsObjectWrapper, and also fix this complexity.
* gezus.
*/
QString uiLanguage(QLocale *callerLoc)
{
QString shortDateFormat;
QString dateFormat;
QString timeFormat;
QSettings s;
QVariant v;
s.beginGroup("Language");
GET_BOOL("UseSystemLanguage", locale.use_system_language);
if (!prefs.locale.use_system_language) {
loc = QLocale(s.value("UiLangLocale", QLocale().uiLanguages().first()).toString());
} else {
loc = QLocale(QLocale().uiLanguages().first());
}
QStringList languages = loc.uiLanguages();
QString uiLang;
if (languages[0].contains('-'))
uiLang = languages[0];
else if (languages.count() > 1 && languages[1].contains('-'))
uiLang = languages[1];
else if (languages.count() > 2 && languages[2].contains('-'))
uiLang = languages[2];
else
uiLang = languages[0];
prefs.locale.lang_locale = copy_string(qPrintable(uiLang));
GET_BOOL("time_format_override", time_format_override);
GET_BOOL("date_format_override", date_format_override);
GET_TXT("time_format", time_format);
GET_TXT("date_format", date_format);
GET_TXT("date_format_short", date_format_short);
s.endGroup();
// there's a stupid Qt bug on MacOS where uiLanguages doesn't give us the country info
if (!uiLang.contains('-') && uiLang != loc.bcp47Name()) {
QLocale loc2(loc.bcp47Name());
loc = loc2;
QStringList languages = loc2.uiLanguages();
if (languages[0].contains('-'))
uiLang = languages[0];
else if (languages.count() > 1 && languages[1].contains('-'))
uiLang = languages[1];
else if (languages.count() > 2 && languages[2].contains('-'))
uiLang = languages[2];
}
if (callerLoc)
*callerLoc = loc;
if (!prefs.date_format_override || same_string(prefs.date_format_short, "") || same_string(prefs.date_format, "")) {
// derive our standard date format from what the locale gives us
// the short format is fine
// the long format uses long weekday and month names, so replace those with the short ones
// for time we don't want the time zone designator and don't want leading zeroes on the hours
shortDateFormat = loc.dateFormat(QLocale::ShortFormat);
dateFormat = loc.dateFormat(QLocale::LongFormat);
dateFormat.replace("dddd,", "ddd").replace("dddd", "ddd").replace("MMMM", "MMM");
// special hack for Swedish as our switching from long weekday names to short weekday names
// messes things up there
dateFormat.replace("'en' 'den' d:'e'", " d");
if (!prefs.date_format_override || same_string(prefs.date_format, "")) {
free((void*)prefs.date_format);
prefs.date_format = strdup(qPrintable(dateFormat));
}
if (!prefs.date_format_override || same_string(prefs.date_format_short, "")) {
free((void*)prefs.date_format_short);
prefs.date_format_short = strdup(qPrintable(shortDateFormat));
}
}
if (!prefs.time_format_override || same_string(prefs.time_format, "")) {
timeFormat = loc.timeFormat();
timeFormat.replace("(t)", "").replace(" t", "").replace("t", "").replace("hh", "h").replace("HH", "H").replace("'kl'.", "");
timeFormat.replace(".ss", "").replace(":ss", "").replace("ss", "");
free((void*)prefs.time_format);
prefs.time_format = strdup(qPrintable(timeFormat));
}
return uiLang;
}
QLocale getLocale()
{
return loc;
}
void set_filename(const char *filename, bool force)
{
if (!force && existing_filename)
return;
free((void *)existing_filename);
if (filename)
existing_filename = strdup(filename);
else
existing_filename = NULL;
}
const QString get_dc_nickname(const char *model, uint32_t deviceid)
{
const DiveComputerNode *existNode = dcList.getExact(model, deviceid);
if (existNode && !existNode->nickName.isEmpty())
return existNode->nickName;
else
return model;
}
QString get_depth_string(int mm, bool showunit, bool showdecimal)
{
if (prefs.units.length == units::METERS) {
double meters = mm / 1000.0;
return QString("%1%2").arg(meters, 0, 'f', (showdecimal && meters < 20.0) ? 1 : 0).arg(showunit ? translate("gettextFromC", "m") : "");
} else {
double feet = mm_to_feet(mm);
return QString("%1%2").arg(feet, 0, 'f', 0).arg(showunit ? translate("gettextFromC", "ft") : "");
}
}
QString get_depth_string(depth_t depth, bool showunit, bool showdecimal)
{
return get_depth_string(depth.mm, showunit, showdecimal);
}
QString get_depth_unit()
{
if (prefs.units.length == units::METERS)
return QString("%1").arg(translate("gettextFromC", "m"));
else
return QString("%1").arg(translate("gettextFromC", "ft"));
}
QString get_weight_string(weight_t weight, bool showunit)
{
QString str = weight_string(weight.grams);
if (get_units()->weight == units::KG) {
str = QString("%1%2").arg(str).arg(showunit ? translate("gettextFromC", "kg") : "");
} else {
str = QString("%1%2").arg(str).arg(showunit ? translate("gettextFromC", "lbs") : "");
}
return (str);
}
QString get_weight_unit()
{
if (prefs.units.weight == units::KG)
return QString("%1").arg(translate("gettextFromC", "kg"));
else
return QString("%1").arg(translate("gettextFromC", "lbs"));
}
QString get_temperature_string(temperature_t temp, bool showunit)
{
if (temp.mkelvin == 0) {
return ""; //temperature not defined
} else if (prefs.units.temperature == units::CELSIUS) {
double celsius = mkelvin_to_C(temp.mkelvin);
return QString("%1%2%3").arg(celsius, 0, 'f', 1).arg(showunit ? (UTF8_DEGREE) : "").arg(showunit ? translate("gettextFromC", "C") : "");
} else {
double fahrenheit = mkelvin_to_F(temp.mkelvin);
return QString("%1%2%3").arg(fahrenheit, 0, 'f', 1).arg(showunit ? (UTF8_DEGREE) : "").arg(showunit ? translate("gettextFromC", "F") : "");
}
}
QString get_temp_unit()
{
if (prefs.units.temperature == units::CELSIUS)
return QString(UTF8_DEGREE "C");
else
return QString(UTF8_DEGREE "F");
}
QString get_volume_string(volume_t volume, bool showunit)
{
const char *unit;
int decimals;
double value = get_volume_units(volume.mliter, &decimals, &unit);
return QString("%1%2").arg(value, 0, 'f', decimals).arg(showunit ? unit : "");
}
QString get_volume_unit()
{
const char *unit;
(void) get_volume_units(0, NULL, &unit);
return QString(unit);
}
QString get_pressure_string(pressure_t pressure, bool showunit)
{
if (prefs.units.pressure == units::BAR) {
double bar = pressure.mbar / 1000.0;
return QString("%1%2").arg(bar, 0, 'f', 1).arg(showunit ? translate("gettextFromC", "bar") : "");
} else {
double psi = mbar_to_PSI(pressure.mbar);
return QString("%1%2").arg(psi, 0, 'f', 0).arg(showunit ? translate("gettextFromC", "psi") : "");
}
}
QString getSubsurfaceDataPath(QString folderToFind)
{
QString execdir;
QDir folder;
// first check if we are running in the build dir, so the path that we
// are looking for is just a subdirectory of the execution path;
// this also works on Windows as there we install the dirs
// under the application path
execdir = QCoreApplication::applicationDirPath();
folder = QDir(execdir.append(QDir::separator()).append(folderToFind));
if (folder.exists())
return folder.absolutePath();
// next check for the Linux typical $(prefix)/share/subsurface
execdir = QCoreApplication::applicationDirPath();
if (execdir.contains("bin")) {
folder = QDir(execdir.replace("bin", "share/subsurface/").append(folderToFind));
if (folder.exists())
return folder.absolutePath();
}
// then look for the usual locations on a Mac
execdir = QCoreApplication::applicationDirPath();
folder = QDir(execdir.append("/../Resources/share/").append(folderToFind));
if (folder.exists())
return folder.absolutePath();
execdir = QCoreApplication::applicationDirPath();
folder = QDir(execdir.append("/../Resources/").append(folderToFind));
if (folder.exists())
return folder.absolutePath();
return QString("");
}
static const char *printing_templates = "printing_templates";
QString getPrintingTemplatePathUser()
{
static QString path = QString();
if (path.isEmpty())
path = QString(system_default_directory()) + QDir::separator() + QString(printing_templates);
return path;
}
QString getPrintingTemplatePathBundle()
{
static QString path = QString();
if (path.isEmpty())
path = getSubsurfaceDataPath(printing_templates);
return path;
}
void copyPath(QString src, QString dst)
{
QDir dir(src);
if (!dir.exists())
return;
foreach (QString d, dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot)) {
QString dst_path = dst + QDir::separator() + d;
dir.mkpath(dst_path);
copyPath(src + QDir::separator() + d, dst_path);
}
foreach (QString f, dir.entryList(QDir::Files))
QFile::copy(src + QDir::separator() + f, dst + QDir::separator() + f);
}
int gettimezoneoffset(timestamp_t when)
{
QDateTime dt1, dt2;
if (when == 0)
dt1 = QDateTime::currentDateTime();
else
dt1 = QDateTime::fromMSecsSinceEpoch(when * 1000);
dt2 = dt1.toUTC();
dt1.setTimeSpec(Qt::UTC);
return dt2.secsTo(dt1);
}
int parseLengthToMm(const QString &text)
{
int mm;
QString numOnly = text;
numOnly.replace(",", ".").remove(QRegExp("[^-0-9.]"));
if (numOnly.isEmpty())
return 0;
double number = numOnly.toDouble();
if (text.contains(QObject::tr("m"), Qt::CaseInsensitive)) {
mm = number * 1000;
} else if (text.contains(QObject::tr("ft"), Qt::CaseInsensitive)) {
mm = feet_to_mm(number);
} else {
switch (prefs.units.length) {
case units::FEET:
mm = feet_to_mm(number);
break;
case units::METERS:
mm = number * 1000;
break;
default:
mm = 0;
}
}
return mm;
}
int parseTemperatureToMkelvin(const QString &text)
{
int mkelvin;
QString numOnly = text;
numOnly.replace(",", ".").remove(QRegExp("[^-0-9.]"));
if (numOnly.isEmpty())
return 0;
double number = numOnly.toDouble();
if (text.contains(QObject::tr("C"), Qt::CaseInsensitive)) {
mkelvin = C_to_mkelvin(number);
} else if (text.contains(QObject::tr("F"), Qt::CaseInsensitive)) {
mkelvin = F_to_mkelvin(number);
} else {
switch (prefs.units.temperature) {
case units::CELSIUS:
mkelvin = C_to_mkelvin(number);
break;
case units::FAHRENHEIT:
mkelvin = F_to_mkelvin(number);
break;
default:
mkelvin = 0;
}
}
return mkelvin;
}
int parseWeightToGrams(const QString &text)
{
int grams;
QString numOnly = text;
numOnly.replace(",", ".").remove(QRegExp("[^0-9.]"));
if (numOnly.isEmpty())
return 0;
double number = numOnly.toDouble();
if (text.contains(QObject::tr("kg"), Qt::CaseInsensitive)) {
grams = rint(number * 1000);
} else if (text.contains(QObject::tr("lbs"), Qt::CaseInsensitive)) {
grams = lbs_to_grams(number);
} else {
switch (prefs.units.weight) {
case units::KG:
grams = rint(number * 1000);
break;
case units::LBS:
grams = lbs_to_grams(number);
break;
default:
grams = 0;
}
}
return grams;
}
int parsePressureToMbar(const QString &text)
{
int mbar;
QString numOnly = text;
numOnly.replace(",", ".").remove(QRegExp("[^0-9.]"));
if (numOnly.isEmpty())
return 0;
double number = numOnly.toDouble();
if (text.contains(QObject::tr("bar"), Qt::CaseInsensitive)) {
mbar = rint(number * 1000);
} else if (text.contains(QObject::tr("psi"), Qt::CaseInsensitive)) {
mbar = psi_to_mbar(number);
} else {
switch (prefs.units.pressure) {
case units::BAR:
mbar = rint(number * 1000);
break;
case units::PSI:
mbar = psi_to_mbar(number);
break;
default:
mbar = 0;
}
}
return mbar;
}
int parseGasMixO2(const QString &text)
{
QString gasString = text;
int o2, number;
if (gasString.contains(QObject::tr("AIR"), Qt::CaseInsensitive)) {
o2 = O2_IN_AIR;
} else if (gasString.contains(QObject::tr("EAN"), Qt::CaseInsensitive)) {
gasString.remove(QRegExp("[^0-9]"));
number = gasString.toInt();
o2 = number * 10;
} else if (gasString.contains("/")) {
QStringList gasSplit = gasString.split("/");
number = gasSplit[0].toInt();
o2 = number * 10;
} else {
number = gasString.toInt();
o2 = number * 10;
}
return o2;
}
int parseGasMixHE(const QString &text)
{
QString gasString = text;
int he, number;
if (gasString.contains("/")) {
QStringList gasSplit = gasString.split("/");
number = gasSplit[1].toInt();
he = number * 10;
} else {
he = 0;
}
return he;
}
QString get_dive_duration_string(timestamp_t when, QString hourText, QString minutesText)
{
int hrs, mins;
mins = (when + 59) / 60;
hrs = mins / 60;
mins -= hrs * 60;
QString displayTime;
if (hrs)
displayTime = QString("%1%2%3%4").arg(hrs).arg(hourText).arg(mins, 2, 10, QChar('0')).arg(minutesText);
else
displayTime = QString("%1%2").arg(mins).arg(minutesText);
return displayTime;
}
QString get_dive_date_string(timestamp_t when)
{
QDateTime ts;
ts.setMSecsSinceEpoch(when * 1000L);
return loc.toString(ts.toUTC(), QString(prefs.date_format) + " " + prefs.time_format);
}
QString get_short_dive_date_string(timestamp_t when)
{
QDateTime ts;
ts.setMSecsSinceEpoch(when * 1000L);
return loc.toString(ts.toUTC(), QString(prefs.date_format_short) + " " + prefs.time_format);
}
const char *get_dive_date_c_string(timestamp_t when)
{
QString text = get_dive_date_string(when);
return strdup(text.toUtf8().data());
}
bool is_same_day(timestamp_t trip_when, timestamp_t dive_when)
{
static timestamp_t twhen = (timestamp_t) 0;
static struct tm tmt;
struct tm tmd;
utc_mkdate(dive_when, &tmd);
if (twhen != trip_when) {
twhen = trip_when;
utc_mkdate(twhen, &tmt);
}
return ((tmd.tm_mday == tmt.tm_mday) && (tmd.tm_mon == tmt.tm_mon) && (tmd.tm_year == tmt.tm_year));
}
QString get_trip_date_string(timestamp_t when, int nr, bool getday)
{
struct tm tm;
utc_mkdate(when, &tm);
QDateTime localTime = QDateTime::fromMSecsSinceEpoch(1000*when,Qt::UTC);
localTime.setTimeSpec(Qt::UTC);
QString ret ;
QString suffix = " " + QObject::tr("(%n dive(s))", "", nr);
if (getday) {
ret = localTime.date().toString(prefs.date_format) + suffix;
} else {
ret = localTime.date().toString("MMM yyyy") + suffix;
}
return ret;
}
extern "C" void reverseGeoLookup(degrees_t latitude, degrees_t longitude, uint32_t uuid)
{
QNetworkRequest request;
QNetworkAccessManager *rgl = new QNetworkAccessManager();
request.setUrl(QString("http://open.mapquestapi.com/nominatim/v1/reverse.php?format=json&accept-language=%1&lat=%2&lon=%3")
.arg(uiLanguage(NULL)).arg(latitude.udeg / 1000000.0).arg(longitude.udeg / 1000000.0));
request.setRawHeader("Accept", "text/json");
request.setRawHeader("User-Agent", getUserAgent().toUtf8());
QNetworkReply *reply = rgl->get(request);
QEventLoop loop;
QObject::connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
loop.exec();
QJsonParseError errorObject;
QJsonDocument jsonDoc = QJsonDocument::fromJson(reply->readAll(), &errorObject);
if (errorObject.error != QJsonParseError::NoError) {
qDebug() << errorObject.errorString();
} else {
QJsonObject obj = jsonDoc.object();
QJsonObject address = obj.value("address").toObject();
qDebug() << "found country:" << address.value("country").toString();
struct dive_site *ds = get_dive_site_by_uuid(uuid);
ds->notes = add_to_string(ds->notes, "countrytag: %s", address.value("country").toString().toUtf8().data());
}
}
QHash<QString, QByteArray> hashOf;
QMutex hashOfMutex;
QHash<QByteArray, QString> localFilenameOf;
QHash <QString, QImage > thumbnailCache;
extern "C" char * hashstring(char * filename)
{
QMutexLocker locker(&hashOfMutex);
return hashOf[QString(filename)].toHex().data();
}
const QString hashfile_name()
{
return QString(system_default_directory()).append("/hashes");
}
extern "C" char *hashfile_name_string()
{
return strdup(hashfile_name().toUtf8().data());
}
void read_hashes()
{
QFile hashfile(hashfile_name());
QMutexLocker locker(&hashOfMutex);
if (hashfile.open(QIODevice::ReadOnly)) {
QDataStream stream(&hashfile);
stream >> localFilenameOf;
stream >> hashOf;
stream >> thumbnailCache;
hashfile.close();
}
localFilenameOf.remove("");
QMutableHashIterator<QString, QByteArray> iter(hashOf);
while (iter.hasNext()) {
iter.next();
if (iter.value().isEmpty())
iter.remove();
}
}
void write_hashes()
{
QSaveFile hashfile(hashfile_name());
QMutexLocker locker(&hashOfMutex);
if (hashfile.open(QIODevice::WriteOnly)) {
QDataStream stream(&hashfile);
stream << localFilenameOf;
stream << hashOf;
stream << thumbnailCache;
hashfile.commit();
} else {
qDebug() << "cannot open" << hashfile.fileName();
}
}
void add_hash(const QString filename, QByteArray hash)
{
if (hash.isEmpty())
return;
QMutexLocker locker(&hashOfMutex);
hashOf[filename] = hash;
localFilenameOf[hash] = filename;
}
QByteArray hashFile(const QString filename)
{
QCryptographicHash hash(QCryptographicHash::Sha1);
QFile imagefile(filename);
if (imagefile.exists() && imagefile.open(QIODevice::ReadOnly)) {
hash.addData(&imagefile);
add_hash(filename, hash.result());
return hash.result();
} else {
return QByteArray();
}
}
void learnHash(struct picture *picture, QByteArray hash)
{
if (hash.isNull())
return;
if (picture->hash)
free(picture->hash);
QMutexLocker locker(&hashOfMutex);
hashOf[QString(picture->filename)] = hash;
picture->hash = strdup(hash.toHex());
}
bool haveHash(QString &filename)
{
QMutexLocker locker(&hashOfMutex);
return hashOf.contains(filename);
}
QString localFilePath(const QString originalFilename)
{
QMutexLocker locker(&hashOfMutex);
if (hashOf.contains(originalFilename) && localFilenameOf.contains(hashOf[originalFilename]))
return localFilenameOf[hashOf[originalFilename]];
else
return originalFilename;
}
QString fileFromHash(char *hash)
{
if (!hash || !*hash)
return "";
QMutexLocker locker(&hashOfMutex);
return localFilenameOf[QByteArray::fromHex(hash)];
}
// This needs to operate on a copy of picture as it frees it after finishing!
void updateHash(struct picture *picture) {
if (!picture)
return;
QByteArray hash = hashFile(fileFromHash(picture->hash));
learnHash(picture, hash);
picture_free(picture);
}
// This needs to operate on a copy of picture as it frees it after finishing!
void hashPicture(struct picture *picture)
{
if (!picture)
return;
char *oldHash = copy_string(picture->hash);
learnHash(picture, hashFile(localFilePath(picture->filename)));
if (!same_string(picture->hash, "") && !same_string(picture->hash, oldHash))
mark_divelist_changed((true));
free(oldHash);
picture_free(picture);
}
extern "C" void cache_picture(struct picture *picture)
{
QString filename = picture->filename;
if (!haveHash(filename))
QtConcurrent::run(hashPicture, clone_picture(picture));
}
void learnImages(const QDir dir, int max_recursions)
{
QStringList filters, files;
if (max_recursions) {
foreach (QString dirname, dir.entryList(QStringList(), QDir::NoDotAndDotDot | QDir::Dirs)) {
learnImages(QDir(dir.filePath(dirname)), max_recursions - 1);
}
}
foreach (QString format, QImageReader::supportedImageFormats()) {
filters.append(QString("*.").append(format));
}
foreach (QString file, dir.entryList(filters, QDir::Files)) {
files.append(dir.absoluteFilePath(file));
}
QtConcurrent::blockingMap(files, hashFile);
}
extern "C" const char *local_file_path(struct picture *picture)
{
QString hashString = picture->hash;
if (hashString.isEmpty()) {
QByteArray hash = hashFile(picture->filename);
free(picture->hash);
picture->hash = strdup(hash.toHex().data());
}
QString localFileName = fileFromHash(picture->hash);
if (localFileName.isEmpty())
localFileName = picture->filename;
return strdup(qPrintable(localFileName));
}
extern "C" bool picture_exists(struct picture *picture)
{
QString localFilename = fileFromHash(picture->hash);
QByteArray hash = hashFile(localFilename);
return same_string(hash.toHex().data(), picture->hash);
}
const QString picturedir()
{
return QString(system_default_directory()).append("/picturedata/");
}
extern "C" char *picturedir_string()
{
return strdup(picturedir().toUtf8().data());
}
/* when we get a picture from git storage (local or remote) and can't find the picture
* based on its hash, we create a local copy with the hash as filename and the appropriate
* suffix */
extern "C" void savePictureLocal(struct picture *picture, const char *data, int len)
{
QString dirname = picturedir();
QDir localPictureDir(dirname);
localPictureDir.mkpath(dirname);
QString suffix(picture->filename);
suffix.replace(QRegularExpression(".*\\."), "");
QString filename(dirname + picture->hash + "." + suffix);
QSaveFile out(filename);
if (out.open(QIODevice::WriteOnly)) {
out.write(data, len);
out.commit();
add_hash(filename, QByteArray::fromHex(picture->hash));
}
}
extern "C" void picture_load_exif_data(struct picture *p)
{
easyexif::EXIFInfo exif;
memblock mem;
if (readfile(localFilePath(QString(p->filename)).toUtf8().data(), &mem) <= 0)
goto picture_load_exit;
if (exif.parseFrom((const unsigned char *)mem.buffer, (unsigned)mem.size) != PARSE_EXIF_SUCCESS)
goto picture_load_exit;
p->longitude.udeg= lrint(1000000.0 * exif.GeoLocation.Longitude);
p->latitude.udeg = lrint(1000000.0 * exif.GeoLocation.Latitude);
picture_load_exit:
free(mem.buffer);
return;
}
QString get_gas_string(struct gasmix gas)
{
uint o2 = (get_o2(&gas) + 5) / 10, he = (get_he(&gas) + 5) / 10;
QString result = gasmix_is_air(&gas) ? QObject::tr("AIR") : he == 0 ? (o2 == 100 ? QObject::tr("OXYGEN") : QString("EAN%1").arg(o2, 2, 10, QChar('0'))) : QString("%1/%2").arg(o2).arg(he);
return result;
}
QString get_divepoint_gas_string(struct dive *d, const divedatapoint &p)
{
int idx = p.cylinderid;
return get_gas_string(d->cylinder[idx].gasmix);
}
weight_t string_to_weight(const char *str)
{
const char *end;
double value = strtod_flags(str, &end, 0);
QString rest = QString(end).trimmed();
QString local_kg = QObject::tr("kg");
QString local_lbs = QObject::tr("lbs");
weight_t weight;
if (rest.startsWith("kg") || rest.startsWith(local_kg))
goto kg;
// using just "lb" instead of "lbs" is intentional - some people might enter the singular
if (rest.startsWith("lb") || rest.startsWith(local_lbs))
goto lbs;
if (prefs.units.weight == prefs.units.LBS)
goto lbs;
kg:
weight.grams = rint(value * 1000);
return weight;
lbs:
weight.grams = lbs_to_grams(value);
return weight;
}
depth_t string_to_depth(const char *str)
{
const char *end;
double value = strtod_flags(str, &end, 0);
QString rest = QString(end).trimmed();
QString local_ft = QObject::tr("ft");
QString local_m = QObject::tr("m");
depth_t depth;
if (value < 0)
value = 0;
if (rest.startsWith("m") || rest.startsWith(local_m))
goto m;
if (rest.startsWith("ft") || rest.startsWith(local_ft))
goto ft;
if (prefs.units.length == prefs.units.FEET)
goto ft;
m:
depth.mm = rint(value * 1000);
return depth;
ft:
depth.mm = feet_to_mm(value);
return depth;
}
pressure_t string_to_pressure(const char *str)
{
const char *end;
double value = strtod_flags(str, &end, 0);
QString rest = QString(end).trimmed();
QString local_psi = QObject::tr("psi");
QString local_bar = QObject::tr("bar");
pressure_t pressure;
if (rest.startsWith("bar") || rest.startsWith(local_bar))
goto bar;
if (rest.startsWith("psi") || rest.startsWith(local_psi))
goto psi;
if (prefs.units.pressure == prefs.units.PSI)
goto psi;
bar:
pressure.mbar = rint(value * 1000);
return pressure;
psi:
pressure.mbar = psi_to_mbar(value);
return pressure;
}
volume_t string_to_volume(const char *str, pressure_t workp)
{
const char *end;
double value = strtod_flags(str, &end, 0);
QString rest = QString(end).trimmed();
QString local_l = QObject::tr("l");
QString local_cuft = QObject::tr("cuft");
volume_t volume;
if (rest.startsWith("l") || rest.startsWith("") || rest.startsWith(local_l))
goto l;
if (rest.startsWith("cuft") || rest.startsWith(local_cuft))
goto cuft;
/*
* If we don't have explicit units, and there is no working
* pressure, we're going to assume "liter" even in imperial
* measurements.
*/
if (!workp.mbar)
goto l;
if (prefs.units.volume == prefs.units.LITER)
goto l;
cuft:
if (workp.mbar)
value /= bar_to_atm(workp.mbar / 1000.0);
value = cuft_to_l(value);
l:
volume.mliter = rint(value * 1000);
return volume;
}
fraction_t string_to_fraction(const char *str)
{
const char *end;
double value = strtod_flags(str, &end, 0);
fraction_t fraction;
fraction.permille = rint(value * 10);
/*
* Don't permit values less than zero or greater than 100%
*/
if (fraction.permille < 0)
fraction.permille = 0;
else if (fraction.permille > 1000)
fraction.permille = 1000;
return fraction;
}
int getCloudURL(QString &filename)
{
QString email = QString(prefs.cloud_storage_email);
email.replace(QRegularExpression("[^a-zA-Z0-9@._+-]"), "");
if (email.isEmpty() || same_string(prefs.cloud_storage_password, ""))
return report_error("Please configure Cloud storage email and password in the preferences");
if (email != prefs.cloud_storage_email_encoded) {
free(prefs.cloud_storage_email_encoded);
prefs.cloud_storage_email_encoded = strdup(qPrintable(email));
}
filename = QString(QString(prefs.cloud_git_url) + "/%1[%1]").arg(email);
if (verbose)
qDebug() << "cloud URL set as" << filename;
return 0;
}
extern "C" char *cloud_url()
{
QString filename;
getCloudURL(filename);
return strdup(filename.toUtf8().data());
}
extern "C" bool isCloudUrl(const char *filename)
{
QString email = QString(prefs.cloud_storage_email);
email.replace(QRegularExpression("[^a-zA-Z0-9@._+-]"), "");
if (!email.isEmpty() &&
QString(QString(prefs.cloud_git_url) + "/%1[%1]").arg(email) == filename)
return true;
return false;
}
extern "C" bool getProxyString(char **buffer)
{
if (prefs.proxy_type == QNetworkProxy::HttpProxy) {
QString proxy;
if (prefs.proxy_auth)
proxy = QString("http://%1:%2@%3:%4").arg(prefs.proxy_user).arg(prefs.proxy_pass)
.arg(prefs.proxy_host).arg(prefs.proxy_port);
else
proxy = QString("http://%1:%2").arg(prefs.proxy_host).arg(prefs.proxy_port);
if (buffer)
*buffer = strdup(qPrintable(proxy));
return true;
}
return false;
}
extern "C" void subsurface_mkdir(const char *dir)
{
QDir directory;
if (!directory.mkpath(QString(dir)))
qDebug() << "failed to create path" << dir;
}
extern "C" void parse_display_units(char *line)
{
qDebug() << line;
}
static QByteArray currentApplicationState;
QByteArray getCurrentAppState()
{
return currentApplicationState;
}
void setCurrentAppState(QByteArray state)
{
currentApplicationState = state;
}
extern "C" bool in_planner()
{
return (currentApplicationState == "PlanDive" || currentApplicationState == "EditPlannedDive");
}
extern "C" enum deco_mode decoMode()
{
return in_planner() ? prefs.planner_deco_mode : prefs.display_deco_mode;
}
void init_proxy()
{
QNetworkProxy proxy;
proxy.setType(QNetworkProxy::ProxyType(prefs.proxy_type));
proxy.setHostName(prefs.proxy_host);
proxy.setPort(prefs.proxy_port);
if (prefs.proxy_auth) {
proxy.setUser(prefs.proxy_user);
proxy.setPassword(prefs.proxy_pass);
}
QNetworkProxy::setApplicationProxy(proxy);
}
QString getUUID()
{
// This is a correct usage of QSettings,
// it's not a setting per se - the user cannot change it
// and thus, don't need to be on the prefs structure
// and this is the *only* point of access from it,
QString uuidString;
QSettings settings;
settings.beginGroup("UpdateManager");
if (settings.contains("UUID")) {
uuidString = settings.value("UUID").toString();
} else {
QUuid uuid = QUuid::createUuid();
uuidString = uuid.toString();
settings.setValue("UUID", uuidString);
}
uuidString.replace("{", "").replace("}", "");
return uuidString;
}