Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 239 insertions, 0 deletions

diff --git a/io/source/TextOutputStream/TextOutputStream.cxx b/io/source/TextOutputStream/TextOutputStream.cxx
new file mode 100644
index 000000000..1271c4d09
--- /dev/null
+++ b/io/source/TextOutputStream/TextOutputStream.cxx
@@ -0,0 +1,239 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <rtl/textenc.h>
+#include <rtl/tencinfo.h>
+
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/io/XTextOutputStream2.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::io;
+
+// Implementation XTextOutputStream
+
+namespace {
+
+class OTextOutputStream : public WeakImplHelper< XTextOutputStream2, XServiceInfo >
+{
+    Reference< XOutputStream > mxStream;
+
+    // Encoding
+    bool mbEncodingInitialized;
+    rtl_UnicodeToTextConverter  mConvUnicode2Text;
+    rtl_UnicodeToTextContext    mContextUnicode2Text;
+
+    Sequence<sal_Int8> implConvert( const OUString& rSource );
+    /// @throws IOException
+    void checkOutputStream() const;
+
+public:
+    OTextOutputStream();
+    virtual ~OTextOutputStream() override;
+
+    // Methods XTextOutputStream
+    virtual void SAL_CALL writeString( const OUString& aString ) override;
+    virtual void SAL_CALL setEncoding( const OUString& Encoding ) override;
+
+    // Methods XOutputStream
+    virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData ) override;
+    virtual void SAL_CALL flush(  ) override;
+    virtual void SAL_CALL closeOutput(  ) override;
+
+    // Methods XActiveDataSource
+    virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream ) override;
+    virtual Reference< XOutputStream > SAL_CALL getOutputStream(  ) override;
+
+    // Methods XServiceInfo
+        virtual OUString              SAL_CALL getImplementationName() override;
+        virtual Sequence< OUString >  SAL_CALL getSupportedServiceNames() override;
+        virtual sal_Bool              SAL_CALL supportsService(const OUString& ServiceName) override;
+};
+
+}
+
+OTextOutputStream::OTextOutputStream()
+    : mbEncodingInitialized(false)
+    , mConvUnicode2Text(nullptr)
+    , mContextUnicode2Text(nullptr)
+{
+}
+
+OTextOutputStream::~OTextOutputStream()
+{
+    if( mbEncodingInitialized )
+    {
+        rtl_destroyUnicodeToTextContext( mConvUnicode2Text, mContextUnicode2Text );
+        rtl_destroyUnicodeToTextConverter( mConvUnicode2Text );
+    }
+}
+
+Sequence<sal_Int8> OTextOutputStream::implConvert( const OUString& rSource )
+{
+    const sal_Unicode *puSource = rSource.getStr();
+    sal_Int32 nSourceSize = rSource.getLength();
+
+    sal_Size nTargetCount = 0;
+    sal_Size nSourceCount = 0;
+
+    sal_uInt32 uiInfo;
+    sal_Size nSrcCvtChars;
+
+    // take nSourceSize * 3 as preference
+    // this is an upper boundary for converting to utf8,
+    // which most often used as the target.
+    sal_Int32 nSeqSize =  nSourceSize * 3;
+
+    Sequence<sal_Int8> seqText( nSeqSize );
+    char *pTarget = reinterpret_cast<char *>(seqText.getArray());
+    while( true )
+    {
+        nTargetCount += rtl_convertUnicodeToText(
+                                    mConvUnicode2Text,
+                                    mContextUnicode2Text,
+                                    &( puSource[nSourceCount] ),
+                                    nSourceSize - nSourceCount ,
+                                    &( pTarget[nTargetCount] ),
+                                    nSeqSize - nTargetCount,
+                                    RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT |
+                                    RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT ,
+                                    &uiInfo,
+                                    &nSrcCvtChars);
+        nSourceCount += nSrcCvtChars;
+
+        if( uiInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL )
+        {
+            nSeqSize *= 2;
+            seqText.realloc( nSeqSize );  // double array size
+            pTarget = reinterpret_cast<char*>(seqText.getArray());
+            continue;
+        }
+        break;
+    }
+
+    // reduce the size of the buffer (fast, no copy necessary)
+    seqText.realloc( nTargetCount );
+    return seqText;
+}
+
+
+// XTextOutputStream
+
+void OTextOutputStream::writeString( const OUString& aString )
+{
+    checkOutputStream();
+    if( !mbEncodingInitialized )
+    {
+        setEncoding( "utf8" );
+    }
+    if( !mbEncodingInitialized )
+        return;
+
+    Sequence<sal_Int8> aByteSeq = implConvert( aString );
+    mxStream->writeBytes( aByteSeq );
+}
+
+void OTextOutputStream::setEncoding( const OUString& Encoding )
+{
+    OString aOEncodingStr = OUStringToOString( Encoding, RTL_TEXTENCODING_ASCII_US );
+    rtl_TextEncoding encoding = rtl_getTextEncodingFromMimeCharset( aOEncodingStr.getStr() );
+    if( RTL_TEXTENCODING_DONTKNOW == encoding )
+        return;
+
+    mbEncodingInitialized = true;
+    mConvUnicode2Text   = rtl_createUnicodeToTextConverter( encoding );
+    mContextUnicode2Text = rtl_createUnicodeToTextContext( mConvUnicode2Text );
+}
+
+
+// XOutputStream
+void OTextOutputStream::writeBytes( const Sequence< sal_Int8 >& aData )
+{
+    checkOutputStream();
+    mxStream->writeBytes( aData );
+}
+
+void OTextOutputStream::flush(  )
+{
+    checkOutputStream();
+    mxStream->flush();
+}
+
+void OTextOutputStream::closeOutput(  )
+{
+    checkOutputStream();
+    mxStream->closeOutput();
+}
+
+
+void OTextOutputStream::checkOutputStream() const
+{
+    if (! mxStream.is() )
+        throw IOException("output stream is not initialized, you have to use setOutputStream first");
+}
+
+
+// XActiveDataSource
+
+void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream )
+{
+    mxStream = aStream;
+}
+
+Reference< XOutputStream > OTextOutputStream::getOutputStream()
+{
+    return mxStream;
+}
+
+OUString OTextOutputStream::getImplementationName()
+{
+    return "com.sun.star.comp.io.TextOutputStream";
+}
+
+sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > OTextOutputStream::getSupportedServiceNames()
+{
+    return { "com.sun.star.io.TextOutputStream" };
+}
+
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+io_OTextOutputStream_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new OTextOutputStream());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */