Add a method to find data files in standard directories (such as $PREFIX/share)

[quassel.git] / src / common / util.cpp

diff --git a/src/common/util.cpp b/src/common/util.cpp
index 1b75f29..a8a3887 100644 (file)
--- a/src/common/util.cpp
+++ b/src/common/util.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   Copyright (C) 2005-09 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -22,6 +22,8 @@
 
 #include <QCoreApplication>
 #include <QDebug>
+#include <QFile>
+#include <QLibraryInfo>
 #include <QTextCodec>
 #include <QTranslator>
 
@@ -49,6 +51,17 @@ bool isChannelName(QString str) {
   return QString("#&!+").contains(str[0]);
 }
 
+QString stripFormatCodes(QString str) {
+  str.remove(QRegExp("\x03(\\d\\d?(,\\d\\d?)?)?"));
+  str.remove('\x02');
+  str.remove('\x0f');
+  str.remove('\x12');
+  str.remove('\x16');
+  str.remove('\x1d');
+  str.remove('\x1f');
+  return str;
+}
+
 QString decodeString(const QByteArray &input, QTextCodec *codec) {
   // First, we check if it's utf8. It is very improbable to encounter a string that looks like
   // valid utf8, but in fact is not. This means that if the input string passes as valid utf8, it
@@ -138,11 +151,6 @@ uint editingDistance(const QString &s1, const QString &s2) {
   return matrix[n-1][m-1];
 }
 
-QByteArray methodName(const QMetaMethod &method) {
-  QByteArray sig(method.signature());
-  return sig.left(sig.indexOf("("));
-}
-
 QDir quasselDir() {
   QString quasselDir;
   if(Quassel::isOptionSet("datadir")) {
@@ -168,25 +176,58 @@ QDir quasselDir() {
   return qDir;
 }
 
+QStringList dataDirPaths() {
+  QStringList dataDirNames = QString(qgetenv("XDG_DATA_DIRS")).split(':', QString::SkipEmptyParts);
+
+  // Provide a fallback
+# ifdef Q_OS_UNIX
+  if(dataDirNames.isEmpty()) dataDirNames.append("/usr/share");
+  // on UNIX, we always check our install prefix
+  QString appDir = QCoreApplication::applicationDirPath();
+  int binpos = appDir.lastIndexOf("/bin");
+  if(binpos >= 0) {
+    appDir.replace(binpos, 4, "/share");
+    if(!dataDirNames.contains(appDir)) dataDirNames.append(appDir);
+  }
+# endif
+
+  return dataDirNames;
+}
+
+QString findDataFilePath(const QString &fileName) {
+  QStringList dataDirs = dataDirPaths();
+  foreach(QString dataDir, dataDirs) {
+    QString path = dataDir + "/apps/quassel/" + fileName;
+    if(QFile::exists(path))
+      return path;
+  }
+  return QString();
+}
+
 void loadTranslation(const QLocale &locale) {
   QTranslator *qtTranslator = QCoreApplication::instance()->findChild<QTranslator *>("QtTr");
   QTranslator *quasselTranslator = QCoreApplication::instance()->findChild<QTranslator *>("QuasselTr");
-  Q_ASSERT(qtTranslator);
-  Q_ASSERT(quasselTranslator);
 
-  QLocale::setDefault(locale);
+  if(!qtTranslator) {
+    qtTranslator = new QTranslator(qApp);
+    qtTranslator->setObjectName("QtTr");
+    qApp->installTranslator(qtTranslator);
+  }
+  if(!quasselTranslator) {
+    quasselTranslator = new QTranslator(qApp);
+    quasselTranslator->setObjectName("QuasselTr");
+    qApp->installTranslator(quasselTranslator);
+  }
 
-  QCoreApplication::removeTranslator(qtTranslator);
-  QCoreApplication::removeTranslator(quasselTranslator);
+  QLocale::setDefault(locale);
 
   if(locale.language() == QLocale::C)
     return;
 
-  qtTranslator->load(QString(":i18n/qt_%1").arg(locale.name()));
+  bool success = qtTranslator->load(QString(":i18n/qt_%1").arg(locale.name()));
+  if(!success)
+    qtTranslator->load(QString("%2/qt_%1").arg(locale.name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath)));
   quasselTranslator->load(QString(":i18n/quassel_%1").arg(locale.name()));
-
-  QCoreApplication::installTranslator(qtTranslator);
-  QCoreApplication::installTranslator(quasselTranslator);
 }
 
 QString secondsToString(int timeInSeconds) {