Merge different read/write/readEntry methods with Qtopia2.1 from

Trolltech to prepare the ConfigCache merge

1 files changed, 164 insertions, 67 deletions

diff --git a/library/config.cpp b/library/config.cpp
index 61ff089..bdfcb3f 100644
--- a/library/config.cpp
+++ b/library/config.cpp
@@ -5,159 +5,214 @@
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 
 #include <qdir.h>
 #include <qmessagebox.h>
 #if QT_VERSION <= 230 && defined(QT_NO_CODECS)
 #include <qtextcodec.h>
 #endif
 #include <qtextstream.h>
 
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <fcntl.h>
 #include <stdlib.h>
 #include <unistd.h>
 
 #define QTOPIA_INTERNAL_LANGLIST
 #include "config.h"
 #include "global.h"
+#include "qpeapplication.h"
 
 
+/*
+ * Internal Class
+ */
+class ConfigPrivate {
+public:
+    ConfigPrivate() : multilang(FALSE) {}
+    ConfigPrivate(const ConfigPrivate& o) :
+        trfile(o.trfile),
+        trcontext(o.trcontext),
+        multilang(o.multilang)
+    {}
+    ConfigPrivate& operator=(const ConfigPrivate& o)
+    {
+        trfile = o.trfile;
+        trcontext = o.trcontext;
+        multilang = o.multilang;
+        return *this;
+    }
+
+    QString trfile;
+    QCString trcontext;
+    bool multilang;
+};
+
+/////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////
+
 /*!
   \internal
 */
 QString Config::configFilename(const QString& name, Domain d)
 {
     switch (d) {
         case File:
             return name;
         case User: {
             QDir dir = (QString(getenv("HOME")) + "/Settings");
             if ( !dir.exists() )
                 mkdir(dir.path().local8Bit(),0700);
             return dir.path() + "/" + name + ".conf";
         }
     }
     return name;
 }
 
+/* This cannot be made public because of binary compat issues */
+void Config::read( QTextStream &s )
+{
+#if QT_VERSION <= 230 && defined(QT_NO_CODECS)
+    // The below should work, but doesn't in Qt 2.3.0
+    s.setCodec( QTextCodec::codecForMib( 106 ) );
+#else
+    s.setEncoding( QTextStream::UnicodeUTF8 );
+#endif
+
+    QStringList list = QStringList::split('\n', s.read() );
+
+    for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
+        if ( !parse( *it ) ) {
+            git = groups.end();
+            return;
+        }
+    }
+}
+
 /*!
   \class Config config.h
   \brief The Config class provides for saving application cofniguration state.
 
   You should keep a Config in existence only while you do not want others
   to be able to change the state. There is no locking currently, but there
   may be in the future.
 */
 
 /*!
   \enum Config::ConfigGroup
   \internal
 */
 
 /*!
   \enum Config::Domain
 
   \value File
   \value User
 
   See Config for details.
 */
 
 /*!
   Constructs a config that will load or create a configuration with the
   given \a name in the given \a domain.
 
   You must call setGroup() before doing much else with the Config.
 
   In the default Domain, \e User,
   the configuration is user-specific. \a name should not contain "/" in
   this case, and in general should be the name of the C++ class that is
   primarily responsible for maintaining the configuration.
 
   In the File Domain, \a name is an absolute filename.
 */
 Config::Config( const QString &name, Domain domain )
     : filename( configFilename(name,domain) )
 {
     git = groups.end();
+    d = 0;
     read();
-    QStringList l = Global::languageList();
-    lang = l[0];
-    glang = l[1];
 }
 
 
 // Sharp ROM compatibility
 Config::Config ( const QString &name, bool what )
         : filename( configFilename(name,what ? User : File) )
 {
     git = groups.end();
+    d = 0;
     read();
-    QStringList l = Global::languageList();
-    lang = l[0];
-    glang = l[1];
 }
 
 /*!
   Writes any changes to disk and destroys the in-memory object.
 */
 Config::~Config()
 {
     if ( changed )
-        write();
+        write();
+
+    delete d;
 }
 
 /*!
   Returns whether the current group has an entry called \a key.
 */
 bool Config::hasKey( const QString &key ) const
 {
     if ( groups.end() == git )
         return FALSE;
     ConfigGroup::ConstIterator it = ( *git ).find( key );
+    if ( it == ( *git ).end() ) {
+        if ( d && !d->trcontext.isNull() ) {
+            it = ( *git ).find( key + "[]" );
+        } else if ( d && d->multilang ) {
+            it = ( *git ).find( key + "["+lang+"]" );
+            if ( it == ( *git ).end() && !glang.isEmpty() )
+                it = ( *git ).find( key + "["+glang+"]" );
+        }
+    }
     return it != ( *git ).end();
 }
 
 /*!
   Sets the current group for subsequent reading and writing of
   entries to \a gname. Grouping allows the application to partition the namespace.
 
   This function must be called prior to any reading or writing
   of entries.
 
   The \a gname must not be empty.
 */
 void Config::setGroup( const QString &gname )
 {
     QMap< QString, ConfigGroup>::Iterator it = groups.find( gname );
     if ( it == groups.end() ) {
         git = groups.insert( gname, ConfigGroup() );
         changed = TRUE;
         return;
     }
     git = it;
 }
 
 /*!
   Writes a (\a key, \a value) entry to the current group.
 
   \sa readEntry()
 */
 void Config::writeEntry( const QString &key, const char* value )
 {
     writeEntry(key,QString(value));
 }
@@ -280,106 +335,123 @@ void Config::writeEntry( const QString &key, const QStringList &lst, const QChar
     for ( ; it != lst.end(); ++it )
         s += *it + sep;
     writeEntry( key, s );
 }
 
 /*!
   Removes the \a key entry from the current group. Does nothing if
   there is no such entry.
 */
 
 void Config::removeEntry( const QString &key )
 {
     if ( git == groups.end() ) {
         qWarning( "no group set" );
         return;
     }
     ( *git ).remove( key );
     changed = TRUE;
 }
 
 /*!
   \fn bool Config::operator == ( const Config & other ) const
 
   Tests for equality with \a other. Config objects are equal if they refer to the same filename.
 */
 
 /*!
   \fn bool Config::operator != ( const Config & other ) const
 
   Tests for inequality with \a other. Config objects are equal if they refer to the same filename.
 */
 
+
 /*!
   \fn QString Config::readEntry( const QString &key, const QString &deflt ) const
 
   Reads a string entry stored with \a key, defaulting to \a deflt if there is no entry.
 */
 
+/*
+ * ### !LocalTranslator::translate was kept out!
+ *
+ */
+
 /*!
   \internal
   For compatibility, non-const version.
 */
 QString Config::readEntry( const QString &key, const QString &deflt )
 {
-    QString res = readEntryDirect( key+"["+lang+"]" );
-    if ( !res.isNull() )
-        return res;
-    if ( !glang.isEmpty() ) {
-        res = readEntryDirect( key+"["+glang+"]" );
-        if ( !res.isNull() )
-            return res;
+    QString r;
+    if ( d && !d->trcontext.isNull() ) {
+        // Still try untranslated first, becuase:
+        //  1. It's the common case
+        //  2. That way the value can be WRITTEN (becoming untranslated)
+        r = readEntryDirect( key );
+        if ( !r.isNull() )
+            return r;
+        r = readEntryDirect( key + "[]" );
+        if ( !r.isNull() )
+            return qApp->translate(d->trfile,d->trcontext,r);
+    } else if ( d && d->multilang ) {
+        // For compatibilitity
+        r = readEntryDirect( key + "["+lang+"]" );
+        if ( !r.isNull() )
+            return r;
+        if ( !glang.isEmpty() ) {
+            r = readEntryDirect( key + "["+glang+"]" );
+            if ( !r.isNull() )
+                return r;
+        }
     }
-    return readEntryDirect( key, deflt );
+    r = readEntryDirect( key, deflt );
+    return r;
 }
 
 /*!
   \fn QString Config::readEntryCrypt( const QString &key, const QString &deflt ) const
 
   Reads an encrypted string entry stored with \a key, defaulting to \a deflt if there is no entry.
 */
 
 /*!
   \internal
   For compatibility, non-const version.
 */
 QString Config::readEntryCrypt( const QString &key, const QString &deflt )
 {
-    QString res = readEntryDirect( key+"["+lang+"]" );
-    if ( res.isNull() && glang.isEmpty() )
-        res = readEntryDirect( key+"["+glang+"]" );
-    if ( res.isNull() )
-        res = readEntryDirect( key, QString::null );
+    QString res = readEntry( key );
     if ( res.isNull() )
-        return deflt;
+        return deflt;
     return decipher(res);
 }
 
 /*!
   \fn QString Config::readEntryDirect( const QString &key, const QString &deflt ) const
   \internal
 */
 
 /*!
   \internal
   For compatibility, non-const version.
 */
 QString Config::readEntryDirect( const QString &key, const QString &deflt )
 {
     if ( git == groups.end() ) {
         //qWarning( "no group set" );
         return deflt;
     }
     ConfigGroup::ConstIterator it = ( *git ).find( key );
     if ( it != ( *git ).end() )
         return *it;
     else
         return deflt;
 }
 
 /*!
   \fn int Config::readNumEntry( const QString &key, int deflt ) const
   Reads a numeric entry stored with \a key, defaulting to \a deflt if there is no entry.
 */
 
 /*!
   \internal
@@ -460,150 +532,175 @@ void Config::write( const QString &fn )
         qWarning( "could not open for writing `%s'", strNewFile.latin1() );
         git = groups.end();
         return;
     }
 
     QString str;
     QCString cstr;
     QMap< QString, ConfigGroup >::Iterator g_it = groups.begin();
 
     for ( ; g_it != groups.end(); ++g_it ) {
         str += "[" + g_it.key() + "]\n";
         ConfigGroup::Iterator e_it = ( *g_it ).begin();
         for ( ; e_it != ( *g_it ).end(); ++e_it )
             str += e_it.key() + " = " + *e_it + "\n";
     }
     cstr = str.utf8();
 
     int total_length;
     total_length = f.writeBlock( cstr.data(), cstr.length() );
     if ( total_length != int(cstr.length()) ) {
         QMessageBox::critical( 0, QObject::tr("Out of Space"),
                                QObject::tr("There was a problem creating\nConfiguration Information \nfor this program.\n\nPlease free up some space and\ntry again.") );
         f.close();
         QFile::remove( strNewFile );
         return;
     }
 
     f.close();
     // now rename the file...
     if ( rename( strNewFile, filename ) < 0 ) {
         qWarning( "problem renaming the file %s to %s", strNewFile.latin1(),
                   filename.latin1() );
-        QFile::remove( strNewFile );
+        QFile::remove( strNewFile );
+        return;
     }
+
+    changed = FALSE;
 }
 
 /*!
   Returns whether the Config is in a valid state.
 */
 bool Config::isValid() const
 {
     return groups.end() != git;
 }
 
 /*!
   \internal
 */
 void Config::read()
 {
     changed = FALSE;
 
-    if ( !QFileInfo( filename ).exists() ) {
-        git = groups.end();
-        return;
+    QString readFilename(filename);
+
+    if ( !QFile::exists(filename) ) {
+        bool failed = TRUE;
+        QFileInfo fi(filename);
+        QString settingsDir = QDir::homeDirPath() + "/Settings";
+        if (fi.dirPath(TRUE) == settingsDir) {
+        // User setting - see if there is a default in $OPIEDIR/etc/default/
+            QString dftlFile = QPEApplication::qpeDir() + "etc/default/" + fi.fileName();
+            if (QFile::exists(dftlFile)) {
+                readFilename = dftlFile;
+                failed = FALSE;
+            }
+        }
+        if (failed) {
+            git = groups.end();
+            return;
+        }
     }
 
-    QFile f( filename );
+
+    QFile f( readFilename );
     if ( !f.open( IO_ReadOnly ) ) {
-        git = groups.end();
-        return;
+        git = groups.end();
+        return;
     }
 
-
-    // hack to avoid problems if big files are passed to test
-    // if they are valid configs ( like passing a mp3 ... )
-    // I just hope that there are no conf files > 100000 byte
-    // not the best solution, find something else later
-    if ( f.getch()!='[' ||f.size() > 100000 )  {
+    if (f.getch()!='[') {
         git = groups.end();
         return;
     }
     f.ungetch('[');
 
-
     QTextStream s( &f );
-#if QT_VERSION <= 230 && defined(QT_NO_CODECS)
-    // The below should work, but doesn't in Qt 2.3.0
-    s.setCodec( QTextCodec::codecForMib( 106 ) );
-#else
-    s.setEncoding( QTextStream::UnicodeUTF8 );
-#endif
-
-    QStringList list = QStringList::split('\n', s.read() );
+    read( s );
     f.close();
-
-    for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
-        if ( !parse( *it ) ) {
-            git = groups.end();
-            return;
-        }
-    }
 }
 
 /*!
   \internal
 */
 bool Config::parse( const QString &l )
 {
     QString line = l.stripWhiteSpace();
-
-    if ( line [0] == QChar ( '#' ))
-        return true; // ignore comments
-
     if ( line[ 0 ] == QChar( '[' ) ) {
-        QString gname = line;
-        gname = gname.remove( 0, 1 );
-        if ( gname[ (int)gname.length() - 1 ] == QChar( ']' ) )
-            gname = gname.remove( gname.length() - 1, 1 );
-        git = groups.insert( gname, ConfigGroup() );
+        QString gname = line;
+        gname = gname.remove( 0, 1 );
+        if ( gname[ (int)gname.length() - 1 ] == QChar( ']' ) )
+            gname = gname.remove( gname.length() - 1, 1 );
+        git = groups.insert( gname, ConfigGroup() );
     } else if ( !line.isEmpty() ) {
-        if ( git == groups.end() )
-            return FALSE;
-        int eq = line.find( '=' );
-        if ( eq == -1 )
-            return FALSE;
-        QString key = line.left(eq).stripWhiteSpace();
-        QString value = line.mid(eq+1).stripWhiteSpace();
-        ( *git ).insert( key, value );
+        if ( git == groups.end() )
+            return FALSE;
+        int eq = line.find( '=' );
+        if ( eq == -1 )
+            return FALSE;
+        QString key = line.left(eq).stripWhiteSpace();
+        QString value = line.mid(eq+1).stripWhiteSpace();
+
+        if ( git.key() == "Translation" ) {
+            if ( key == "File" ) {
+                if ( !d )
+                    d = new ConfigPrivate;
+                d->trfile = value;
+            } else if ( key == "Context" ) {
+                if ( !d )
+                    d = new ConfigPrivate;
+                d->trcontext = value.latin1();
+            } else if ( key.startsWith("Comment") ) {
+                return TRUE; // ignore comment for ts file
+            } else {
+                return FALSE; // Unrecognized
+            }
+        }
+
+        int kl = key.length();
+        if ( kl > 1 && key[kl-1] == ']' && key[kl-2] != '[' ) {
+            // Old-style translation (inefficient)
+            if ( !d )
+                d = new ConfigPrivate;
+            if ( !d->multilang ) {
+                QStringList l = Global::languageList();
+                lang = l[0];
+                glang = l[1];
+                d->multilang = TRUE;
+            }
+        }
+
+        ( *git ).insert( key, value );
     }
     return TRUE;
 }
 
 
 
 bool Config::hasGroup( const QString& name )const {
     return ( groups. find ( name ) != groups. end ( ));
 };
 
 QStringList Config::groupList()const {
     QStringList sl;
     for ( ConfigGroupMap::ConstIterator it = groups. begin ( ); it != groups. end ( ); ++it )
         sl << it.key();
 
     return sl;
 };
 
 /////////////
 // Qtopia 2.1 Functions
 //
 ////////////
 
 QStringList Config::allGroups()const {
     return groupList();
 }
 
 /*!
   Returns the time stamp for the config identified by \a name.  The
   time stamp represents the time the config was last committed to storage.
   Returns 0 if there is no time stamp available for the config.