diff options
Diffstat (limited to 'src-qt5/core/libLumina/LUtils.cpp')
| -rw-r--r-- | src-qt5/core/libLumina/LUtils.cpp | 436 |
1 files changed, 436 insertions, 0 deletions
diff --git a/src-qt5/core/libLumina/LUtils.cpp b/src-qt5/core/libLumina/LUtils.cpp new file mode 100644 index 00000000..78831231 --- /dev/null +++ b/src-qt5/core/libLumina/LUtils.cpp @@ -0,0 +1,436 @@ +//=========================================== +// Lumina-DE source code +// Copyright (c) 2013-2016, Ken Moore +// Available under the 3-clause BSD license +// See the LICENSE file for full details +//=========================================== +#include "LUtils.h" + +#include "LuminaOS.h" +#include "LuminaXDG.h" + +#include <QApplication> +#include <QtConcurrent> + +inline QStringList ProcessRun(QString cmd, QStringList args){ + //Assemble outputs + QStringList out; out << "1" << ""; //error code, string output + QProcess proc; + QProcessEnvironment env = QProcessEnvironment::systemEnvironment(); + env.insert("LANG", "C"); + env.insert("LC_MESSAGES", "C"); + proc.setProcessEnvironment(env); + proc.setProcessChannelMode(QProcess::MergedChannels); + if(args.isEmpty()){ + proc.start(cmd, QIODevice::ReadOnly); + }else{ + proc.start(cmd,args ,QIODevice::ReadOnly); + } + QString info; + while(!proc.waitForFinished(1000)){ + if(proc.state() == QProcess::NotRunning){ break; } //somehow missed the finished signal + QString tmp = proc.readAllStandardOutput(); + if(tmp.isEmpty()){ proc.terminate(); } + else{ info.append(tmp); } + } + out[0] = QString::number(proc.exitCode()); + out[1] = info+QString(proc.readAllStandardOutput()); + return out; +} +//============= +// LUtils Functions +//============= +int LUtils::runCmd(QString cmd, QStringList args){ + /*QProcess proc; + proc.setProcessChannelMode(QProcess::MergedChannels); + if(args.isEmpty()){ + proc.start(cmd); + }else{ + proc.start(cmd, args); + } + //if(!proc.waitForStarted(30000)){ return 1; } //process never started - max wait of 30 seconds + while(!proc.waitForFinished(300)){ + if(proc.state() == QProcess::NotRunning){ break; } //somehow missed the finished signal + QCoreApplication::processEvents(); + } + int ret = proc.exitCode(); + return ret;*/ + QFuture<QStringList> future = QtConcurrent::run(ProcessRun, cmd, args); + return future.result()[0].toInt(); //turn it back into an integer return code + +} + +QStringList LUtils::getCmdOutput(QString cmd, QStringList args){ + /*QProcess proc; + QProcessEnvironment env = QProcessEnvironment::systemEnvironment(); + env.insert("LANG", "C"); + env.insert("LC_MESSAGES", "C"); + proc.setProcessEnvironment(env); + proc.setProcessChannelMode(QProcess::MergedChannels); + if(args.isEmpty()){ + proc.start(cmd); + }else{ + proc.start(cmd,args); + } + //if(!proc.waitForStarted(30000)){ return QStringList(); } //process never started - max wait of 30 seconds + while(!proc.waitForFinished(300)){ + if(proc.state() == QProcess::NotRunning){ break; } //somehow missed the finished signal + QCoreApplication::processEvents(); + } + QStringList out = QString(proc.readAllStandardOutput()).split("\n"); + return out;*/ + QFuture<QStringList> future = QtConcurrent::run(ProcessRun, cmd, args); + return future.result()[1].split("\n"); //Split the return message into lines +} + +QStringList LUtils::readFile(QString filepath){ + QStringList out; + QFile file(filepath); + if(file.open(QIODevice::Text | QIODevice::ReadOnly)){ + QTextStream in(&file); + while(!in.atEnd()){ + out << in.readLine(); + } + file.close(); + } + return out; +} + +bool LUtils::writeFile(QString filepath, QStringList contents, bool overwrite){ + QFile file(filepath); + if(file.exists() && !overwrite){ return false; } + bool ok = false; + if(contents.isEmpty()){ contents << "\n"; } + if( file.open(QIODevice::WriteOnly | QIODevice::Truncate) ){ + QTextStream out(&file); + out << contents.join("\n"); + if(!contents.last().isEmpty()){ out << "\n"; } //always end with a new line + file.close(); + ok = true; + } + return ok; +} + +bool LUtils::isValidBinary(QString& bin){ + if(!bin.startsWith("/")){ + //Relative path: search for it on the current "PATH" settings + QStringList paths = QString(qgetenv("PATH")).split(":"); + for(int i=0; i<paths.length(); i++){ + if(QFile::exists(paths[i]+"/"+bin)){ bin = paths[i]+"/"+bin; break;} + } + } + //bin should be the full path by now + if(!bin.startsWith("/")){ return false; } + QFileInfo info(bin); + bool good = (info.exists() && info.isExecutable()); + if(good){ bin = info.absoluteFilePath(); } + return good; +} + +QStringList LUtils::systemApplicationDirs(){ + //Returns a list of all the directories where *.desktop files can be found + QStringList appDirs = QString(getenv("XDG_DATA_HOME")).split(":"); + appDirs << QString(getenv("XDG_DATA_DIRS")).split(":"); + if(appDirs.isEmpty()){ appDirs << "/usr/local/share" << "/usr/share" << LOS::AppPrefix()+"/share" << LOS::SysPrefix()+"/share" << L_SHAREDIR; } + appDirs.removeDuplicates(); + //Now create a valid list + QStringList out; + for(int i=0; i<appDirs.length(); i++){ + if( QFile::exists(appDirs[i]+"/applications") ){ + out << appDirs[i]+"/applications"; + //Also check any subdirs within this directory + // (looking at you KDE - stick to the standards!!) + out << LUtils::listSubDirectories(appDirs[i]+"/applications"); + } + } + //qDebug() << "System Application Dirs:" << out; + return out; +} + +QString LUtils::GenerateOpenTerminalExec(QString term, QString dirpath){ + //Check the input terminal application (default/fallback - determined by calling application) + //if(!LUtils::isValidBinary(term)){ + if(term.endsWith(".desktop")){ + //Pull the binary name out of the shortcut + XDGDesktop DF(term); + if(DF.type == XDGDesktop::BAD){ term = "xterm"; } + else{ term= DF.exec.section(" ",0,0); } //only take the binary name - not any other flags + }else{ + term = "xterm"; //fallback + } + //} + //Now create the calling command for the designated terminal + // NOTE: While the "-e" routine is supposed to be universal, many terminals do not properly use it + // so add some special/known terminals here as necessary + QString exec; + qWarning() << " - Reached terminal initialization" << term; + if(term=="mate-terminal" || term=="lxterminal" || term=="gnome-terminal"){ + exec = term+" --working-directory=\""+dirpath+"\""; + }else if(term=="xfce4-terminal"){ + exec = term+" --default-working-directory=\""+dirpath+"\""; + }else if(term=="konsole" || term == "qterminal"){ + exec = term+" --workdir \""+dirpath+"\""; + }else{ + //-e is the parameter for most of the terminal appliction to execute an external command. + //In this case we start a shell in the selected directory + //Need the user's shell first + QString shell = QString(getenv("SHELL")); + if(!LUtils::isValidBinary(shell)){ shell = "/bin/sh"; } //universal fallback for a shell + exec = term + " -e \"cd " + dirpath + " && " + shell + " \" "; + } + qDebug() << exec; + return exec; +} + +QStringList LUtils::listSubDirectories(QString dir, bool recursive){ + //This is a recursive method for returning the full paths of all subdirectories (if recursive flag is enabled) + QDir maindir(dir); + QStringList out; + QStringList subs = maindir.entryList(QDir::NoDotAndDotDot | QDir::Dirs, QDir::Name); + for(int i=0; i<subs.length(); i++){ + out << maindir.absoluteFilePath(subs[i]); + if(recursive){ + out << LUtils::listSubDirectories(maindir.absoluteFilePath(subs[i]), recursive); + } + } + return out; +} + +QString LUtils::PathToAbsolute(QString path){ + //Convert an input path to an absolute path (this does not check existance ot anything) + if(path.startsWith("/")){ return path; } //already an absolute path + if(path.startsWith("~")){ path.replace(0,1,QDir::homePath()); } + if(!path.startsWith("/")){ + //Must be a relative path + if(path.startsWith("./")){ path = path.remove(2); } + path.prepend( QDir::currentPath()+"/"); + } + return path; +} + +QString LUtils::AppToAbsolute(QString path){ + if(path.startsWith("~/")){ path = path.replace("~/", QDir::homePath()+"/" ); } + if(path.startsWith("/") || QFile::exists(path)){ return path; } + if(path.endsWith(".desktop")){ + //Look in the XDG dirs + QStringList dirs = systemApplicationDirs(); + for(int i=0; i<dirs.length(); i++){ + if(QFile::exists(dirs[i]+"/"+path)){ return (dirs[i]+"/"+path); } + } + }else{ + //Look on $PATH for the binary + QStringList paths = QString(getenv("PATH")).split(":"); + for(int i=0; i<paths.length(); i++){ + if(QFile::exists(paths[i]+"/"+path)){ return (paths[i]+"/"+path); } + } + } + return path; +} + +QStringList LUtils::imageExtensions(bool wildcards){ + //Note that all the image extensions are lowercase!! + static QStringList imgExtensions; + if(imgExtensions.isEmpty()){ + QList<QByteArray> fmt = QImageReader::supportedImageFormats(); + for(int i=0; i<fmt.length(); i++){ + if(wildcards){ imgExtensions << "*."+QString::fromLocal8Bit(fmt[i]); } + else{ imgExtensions << QString::fromLocal8Bit(fmt[i]); } + } + } + return imgExtensions; +} + + QTranslator* LUtils::LoadTranslation(QApplication *app, QString appname, QString locale, QTranslator *cTrans){ + //Get the current localization + QString langEnc = "UTF-8"; //default value + QString langCode = locale; //provided locale + if(langCode.isEmpty()){ langCode = getenv("LC_ALL"); } + if(langCode.isEmpty()){ langCode = getenv("LANG"); } + if(langCode.isEmpty()){ langCode = "en_US.UTF-8"; } //default to US english + //See if the encoding is included and strip it out as necessary + if(langCode.contains(".")){ + langEnc = langCode.section(".",-1); + langCode = langCode.section(".",0,0); + } + //Now verify the encoding for the locale + if(langCode =="C" || langCode=="POSIX" || langCode.isEmpty()){ + langEnc = "System"; //use the Qt system encoding + } + if(app !=0){ + qDebug() << "Loading Locale:" << appname << langCode << langEnc; + //If an existing translator was provided, remove it first (will be replaced) + if(cTrans!=0){ app->removeTranslator(cTrans); } + //Setup the translator + cTrans = new QTranslator(); + //Use the shortened locale code if specific code does not have a corresponding file + if(!QFile::exists(LOS::LuminaShare()+"i18n/"+appname+"_" + langCode + ".qm") && langCode!="en_US" ){ + langCode.truncate( langCode.indexOf("_") ); + } + QString filename = appname+"_"+langCode+".qm"; + //qDebug() << "FileName:" << filename << "Dir:" << LOS::LuminaShare()+"i18n/"; + if( cTrans->load( filename, LOS::LuminaShare()+"i18n/" ) ){ + app->installTranslator( cTrans ); + }else{ + //Translator could not be loaded for some reason + cTrans = 0; + if(langCode!="en_US"){ + qWarning() << " - Could not load Locale:" << langCode; + } + } + }else{ + //Only going to set the encoding since no application given + qDebug() << "Loading System Encoding:" << langEnc; + } + //Load current encoding for this locale + QTextCodec::setCodecForLocale( QTextCodec::codecForName(langEnc.toUtf8()) ); + return cTrans; +} + +QStringList LUtils::knownLocales(){ + QDir i18n = QDir(LOS::LuminaShare()+"i18n"); + if( !i18n.exists() ){ return QStringList(); } + QStringList files = i18n.entryList(QStringList() << "lumina-desktop_*.qm", QDir::Files, QDir::Name); + if(files.isEmpty()){ return QStringList(); } + //Now strip off the filename and just leave the locale tag + for(int i=0; i<files.length(); i++){ + files[i].chop(3); //remove the ".qm" on the end + files[i] = files[i].section("_",1,50).simplified(); + } + files << "en_US"; //default locale + files.sort(); + return files; +} + +void LUtils::setLocaleEnv(QString lang, QString msg, QString time, QString num,QString money,QString collate, QString ctype){ + //Adjust the current locale environment variables + bool all = false; + if(msg.isEmpty() && time.isEmpty() && num.isEmpty() && money.isEmpty() && collate.isEmpty() && ctype.isEmpty() ){ + if(lang.isEmpty()){ return; } //nothing to do - no changes requested + all = true; //set everything to the "lang" value + } + //If no lang given, but others are given, then use the current setting + if(lang.isEmpty()){ lang = getenv("LC_ALL"); } + if(lang.isEmpty()){ lang = getenv("LANG"); } + if(lang.isEmpty()){ lang = "en_US"; } + //Now go through and set/unset the environment variables + // - LANG & LC_ALL + if(!lang.contains(".")){ lang.append(".UTF-8"); } + setenv("LANG",lang.toUtf8() ,1); //overwrite setting (this is always required as the fallback) + if(all){ setenv("LC_ALL",lang.toUtf8() ,1); } + else{ unsetenv("LC_ALL"); } //make sure the custom settings are used + // - LC_MESSAGES + if(msg.isEmpty()){ unsetenv("LC_MESSAGES"); } + else{ + if(!msg.contains(".")){ msg.append(".UTF-8"); } + setenv("LC_MESSAGES",msg.toUtf8(),1); + } + // - LC_TIME + if(time.isEmpty()){ unsetenv("LC_TIME"); } + else{ + if(!time.contains(".")){ time.append(".UTF-8"); } + setenv("LC_TIME",time.toUtf8(),1); + } + // - LC_NUMERIC + if(num.isEmpty()){ unsetenv("LC_NUMERIC"); } + else{ + if(!num.contains(".")){ num.append(".UTF-8"); } + setenv("LC_NUMERIC",num.toUtf8(),1); + } + // - LC_MONETARY + if(money.isEmpty()){ unsetenv("LC_MONETARY"); } + else{ + if(!money.contains(".")){ money.append(".UTF-8"); } + setenv("LC_MONETARY",money.toUtf8(),1); + } + // - LC_COLLATE + if(collate.isEmpty()){ unsetenv("LC_COLLATE"); } + else{ + if(!collate.contains(".")){ collate.append(".UTF-8"); } + setenv("LC_COLLATE",collate.toUtf8(),1); + } + // - LC_CTYPE + if(ctype.isEmpty()){ unsetenv("LC_CTYPE"); } + else{ + if(!ctype.contains(".")){ ctype.append(".UTF-8"); } + setenv("LC_CTYPE",ctype.toUtf8(),1); + } +} + +QString LUtils::currentLocale(){ + QString curr = getenv("LC_ALL");// = QLocale::system(); + if(curr.isEmpty()){ curr = getenv("LANG"); } + if(curr.isEmpty()){ curr = "en_US"; } + curr = curr.section(".",0,0); //remove any encodings off the end + return curr; +} + +double LUtils::DisplaySizeToBytes(QString num){ + //qDebug() << "Convert Num to Bytes:" << num; + num = num.toLower().simplified(); + num = num.remove(" "); + if(num.isEmpty()){ return 0.0; } + if(num.endsWith("b")){ num.chop(1); } //remove the "bytes" marker (if there is one) + QString lab = "b"; + if(!num[num.size()-1].isNumber()){ + lab = num.right(1); num.chop(1); + } + double N = num.toDouble(); + QStringList labs; labs <<"b"<<"k"<<"m"<<"g"<<"t"<<"p"; //go up to petabytes for now + for(int i=0; i<labs.length(); i++){ + if(lab==labs[i]){ break; }//already at the right units - break out + N = N*1024.0; //Move to the next unit of measurement + } + //qDebug() << " - Done:" << QString::number(N) << lab << num; + return N; +} + +QString LUtils::BytesToDisplaySize(qint64 ibytes){ + static QStringList labs = QStringList(); + if(labs.isEmpty()){ labs << "B" << "K" << "M" << "G" << "T" << "P"; } + //Now get the dominant unit + int c=0; + double bytes = ibytes; //need to keep decimel places for calculations + while(bytes>=1000 && c<labs.length() ){ + bytes = bytes/1024; + c++; + } //labs[c] is the unit + //Bytes are now + //Now format the number (up to 3 digits, not including decimel places) + QString num; + if(bytes>=100){ + //No decimel places + num = QString::number(qRound(bytes)); + }else if(bytes>=10){ + //need 1 decimel place + num = QString::number( (qRound(bytes*10)/10.0) ); + }else if(bytes>=1){ + //need 2 decimel places + num = QString::number( (qRound(bytes*100)/100.0) ); + }else{ + //Fully decimel (3 places) + num = "0."+QString::number(qRound(bytes*1000)); + } + //qDebug() << "Bytes to Human-readable:" << bytes << c << num << labs[c]; + return (num+labs[c]); +} + +QString LUtils::SecondsToDisplay(int secs){ + if(secs < 0){ return "??"; } + QString rem; //remaining + if(secs > 3600){ + int hours = secs/3600; + rem.append( QString::number(hours)+"h "); + secs = secs - (hours*3600); + } + if(secs > 60){ + int min = secs/60; + rem.append( QString::number(min)+"m "); + secs = secs - (min*60); + } + if(secs > 0){ + rem.append( QString::number(secs)+"s"); + }else{ + rem.append( "0s" ); + } + return rem; +} |