Get rid of some QTextCodec leftovers

There's no real dependency to QTextCodec in those files anymore.

Change-Id: Ifaf19ab554fd108fa26095db4e2bd4a3e9ea427f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

examples/widgets/doc/src/application.qdoc

@@ -312,9 +312,8 @@
     If we successfully opened the file, we use a QTextStream object
     to read in the data. QTextStream automatically converts the 8-bit
     data into a Unicode QString and supports various encodings. If no
-    encoding is specified, QTextStream assumes the file is written
-    using the system's default 8-bit encoding (for example, Latin-1;
-    see QTextCodec::codecForLocale() for details).
+    encoding is specified, QTextStream assumes the file is encoded in
+    UTF-8.
 
     Since the call to QTextStream::readAll() might take some time, we
     set the cursor to be Qt::WaitCursor for the entire application

src/corelib/io/qprocess.cpp

@@ -148,7 +148,7 @@ QT_BEGIN_NAMESPACE
     binary data (except for the NUL character). QProcessEnvironment will preserve
     such variables, but does not support manipulating variables whose names or
     values cannot be encoded by the current locale settings (see
-    QTextCodec::codecForLocale).
+    QString::toLocal8Bit).
 
     On Windows, the variable names are case-insensitive, but case-preserving.
     QProcessEnvironment behaves accordingly.

src/corelib/kernel/qcoreapplication.h

@@ -60,7 +60,6 @@ QT_BEGIN_NAMESPACE
 
 
 class QCoreApplicationPrivate;
-class QTextCodec;
 class QTranslator;
 class QPostEventList;
 class QStringList;

src/corelib/serialization/qtextstream.cpp

@@ -165,7 +165,7 @@ static const int QTEXTSTREAM_BUFFERSIZE = 16384;
     parameter: qSetFieldWidth(), qSetPadChar(), and
     qSetRealNumberPrecision().
 
-    \sa QDataStream, QIODevice, QFile, QBuffer, QTcpSocket, {Text Codecs Example}
+    \sa QDataStream, QIODevice, QFile, QBuffer, QTcpSocket
 */
 
 /*! \enum QTextStream::RealNumberNotation

src/corelib/serialization/qtextstream.h

@@ -55,10 +55,6 @@
 
 QT_BEGIN_NAMESPACE
 
-
-class QTextCodec;
-class QTextDecoder;
-
 class QTextStreamPrivate;
 class Q_CORE_EXPORT QTextStream                                // text stream class
 {

src/corelib/serialization/qxmlstream.cpp

@@ -45,9 +45,6 @@
 #include <qdebug.h>
 #include <qfile.h>
 #include <stdio.h>
-#if QT_CONFIG(textcodec)
-#include <qtextcodec.h>
-#endif
 #include <qstringconverter.h>
 #include <qstack.h>
 #include <qbuffer.h>

src/corelib/text/qstring.h

@@ -75,7 +75,6 @@ class QRegularExpression;
 class QRegularExpressionMatch;
 class QString;
 class QStringList;
-class QTextCodec;
 class QStringRef;
 template <typename T> class QVector;
 
@@ -1021,7 +1020,6 @@ private:
     static qlonglong toIntegral_helper(const QChar *data, int len, bool *ok, int base);
     static qulonglong toIntegral_helper(const QChar *data, uint len, bool *ok, int base);
     void replace_helper(uint *indices, int nIndices, int blen, const QChar *after, int alen);
-    friend class QTextCodec;
     friend class QStringRef;
     friend class QStringView;
     friend class QByteArray;

src/platformsupport/input/libinput/qlibinputkeyboard.cpp

@@ -38,7 +38,6 @@
 ****************************************************************************/
 
 #include "qlibinputkeyboard_p.h"
-#include <QtCore/QTextCodec>
 #include <QtCore/QLoggingCategory>
 #include <QtGui/private/qguiapplication_p.h>
 #include <QtGui/private/qinputdevicemanager_p.h>

src/plugins/platforms/windows/qwindowsmime.cpp

@@ -42,7 +42,6 @@
 
 #include <QtGui/private/qinternalmimedata_p.h>
 #include <QtCore/qbytearraymatcher.h>
-#include <QtCore/qtextcodec.h>
 #include <QtCore/qmap.h>
 #include <QtCore/qurl.h>
 #include <QtCore/qdir.h>

src/plugins/sqldrivers/mysql/qsql_mysql.cpp

@@ -48,9 +48,6 @@
 #include <qsqlquery.h>
 #include <qsqlrecord.h>
 #include <qstringlist.h>
-#if QT_CONFIG(textcodec)
-#include <qtextcodec.h>
-#endif
 #include <qvector.h>
 #include <qfile.h>
 #include <qdebug.h>

src/tools/uic/main.cpp

@@ -35,7 +35,6 @@
 #include <qdir.h>
 #include <qhashfunctions.h>
 #include <qtextstream.h>
-#include <qtextcodec.h>
 #include <qcoreapplication.h>
 #include <qcommandlineoption.h>
 #include <qcommandlineparser.h>

src/xml/dom/qdom.cpp

@@ -52,9 +52,6 @@
 #if QT_CONFIG(regularexpression)
 #include <qregularexpression.h>
 #endif
-#if QT_CONFIG(textcodec)
-#include <qtextcodec.h>
-#endif
 #include <qtextstream.h>
 #include <qxml.h>
 #include <qvariant.h>
@@ -5942,7 +5939,7 @@ void QDomDocumentPrivate::saveDocument(QTextStream& s, const int indent, QDomNod
     const QDomNodePrivate* n = first;
 
     if(encUsed == QDomNode::EncodingFromDocument) {
-#if QT_CONFIG(textcodec) && QT_CONFIG(regularexpression)
+#if QT_CONFIG(regularexpression)
         const QDomNodePrivate* n = first;
 
         if (n && n->isProcessingInstruction() && n->nodeName() == QLatin1String("xml")) {
@@ -5977,11 +5974,7 @@ void QDomDocumentPrivate::saveDocument(QTextStream& s, const int indent, QDomNod
     else {
 
         // Write out the XML declaration.
-#if !QT_CONFIG(textcodec)
-        const QLatin1String codecName("UTF-8");
-#else
         const QByteArray codecName = QStringConverter::nameForEncoding(s.encoding());
-#endif
 
         s << "<?xml version=\"1.0\" encoding=\""
           << codecName

src/xml/sax/qxml.cpp

@@ -39,10 +39,8 @@
 
 #include "qxml.h"
 #include "qxml_p.h"
-#if QT_CONFIG(textcodec)
-#include "qtextcodec.h"
-#endif
 #include "qbuffer.h"
+#include "qstringconverter.h"
 #if QT_CONFIG(regularexpression)
 #include "qregularexpression.h"
 #endif
@@ -1301,7 +1299,6 @@ void QXmlInputSource::fetchData()
     }
 }
 
-#if QT_CONFIG(textcodec)
 static QString extractEncodingDecl(const QString &text, bool *needMoreText)
 {
     *needMoreText = false;
@@ -1343,7 +1340,6 @@ static QString extractEncodingDecl(const QString &text, bool *needMoreText)
 
     return encoding;
 }
-#endif // textcodec
 
 /*!
     This function reads the XML file from \a data and tries to
@@ -1358,10 +1354,6 @@ static QString extractEncodingDecl(const QString &text, bool *needMoreText)
 */
 QString QXmlInputSource::fromRawData(const QByteArray &data, bool beginning)
 {
-#if !QT_CONFIG(textcodec)
-    Q_UNUSED(beginning);
-    return QString::fromLatin1(data.constData(), data.size());
-#else
     if (data.size() == 0)
         return QString();
     if (beginning) {
@@ -1443,7 +1435,6 @@ QString QXmlInputSource::fromRawData(const QByteArray &data, bool beginning)
     }
 
     return input;
-#endif
 }
 
 

tests/auto/corelib/io/qtemporarydir/tst_qtemporarydir.cpp

@@ -34,7 +34,6 @@
 #include <qfile.h>
 #include <qdir.h>
 #include <qset.h>
-#include <qtextcodec.h>
 #include <QtTest/private/qtesthelpers_p.h>
 #ifdef Q_OS_WIN
 # include <windows.h>

tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp

@@ -36,7 +36,6 @@
 #include <qdatetime.h>
 #include <qdir.h>
 #include <qset.h>
-#include <qtextcodec.h>
 
 #include <QtTest/private/qtesthelpers_p.h>
 

tests/auto/corelib/io/qurl/tst_qurl.cpp

@@ -36,7 +36,6 @@
 #include <qcoreapplication.h>
 
 #include <qfileinfo.h>
-#include <qtextcodec.h>
 #include <qmap.h>
 
 Q_DECLARE_METATYPE(QUrl::FormattingOptions)

tests/auto/corelib/text/qlocale/tst_qlocale.cpp

@@ -33,7 +33,6 @@
 #include <qdir.h>
 #include <qfileinfo.h>
 #include <QScopedArrayPointer>
-#include <qtextcodec.h>
 #include <qdatetime.h>
 #if QT_CONFIG(process)
 # include <qprocess.h>

tests/auto/corelib/text/qstring/tst_qstring.cpp

@@ -41,7 +41,6 @@
 #include <QtTest/QtTest>
 #include <qregexp.h>
 #include <qregularexpression.h>
-#include <qtextcodec.h>
 #include <qtextstream.h>
 #include <qstringlist.h>
 #include <qstringmatcher.h>
@@ -4184,7 +4183,6 @@ void tst_QString::stringRef_utf8()
     QCOMPARE( utf8, QByteArray(ref.toUtf8()) );
 }
 
-// copied to tst_QTextCodec::utf8Codec_data()
 void tst_QString::fromUtf8_data()
 {
     QTest::addColumn<QByteArray>("utf8");