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, 164 insertions, 0 deletions

diff --git a/include/oox/ole/axbinarywriter.hxx b/include/oox/ole/axbinarywriter.hxx
new file mode 100644
index 000000000..eb370473a
--- /dev/null
+++ b/include/oox/ole/axbinarywriter.hxx
@@ -0,0 +1,164 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_OOX_OLE_AXBINARYWRITER_HXX
+#define INCLUDED_OOX_OLE_AXBINARYWRITER_HXX
+
+#include <cstddef>
+#include <utility>
+
+#include <oox/helper/binaryoutputstream.hxx>
+#include <oox/helper/binarystreambase.hxx>
+#include <oox/helper/refvector.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace oox::ole {
+
+
+/** A wrapper for a binary output stream that supports aligned write operations.
+
+    The implementation does support seeking back the wrapped stream. All
+    seeking operations (tell, seekTo, align) are performed relative to the
+    position of the wrapped stream at construction time of this wrapper.
+    Unlike it's reader class counterpart it is NOT possible to construct this
+    wrapper with an unseekable output stream.
+ */
+class AxAlignedOutputStream final : public BinaryOutputStream
+{
+public:
+    explicit            AxAlignedOutputStream( BinaryOutputStream& rOutStrm );
+
+    /** Returns the size of the data this stream represents, if the wrapped
+        stream supports the size() operation. */
+    virtual sal_Int64   size() const override;
+    /** Return the current relative stream position (relative to position of
+        the wrapped stream at construction time). */
+    virtual sal_Int64   tell() const override;
+    /** Seeks the stream to the passed relative position, if it is behind the
+        current position. */
+    virtual void        seek( sal_Int64 nPos ) override;
+    /** Closes the input stream but not the wrapped stream. */
+    virtual void        close() override;
+
+    /** Reads nBytes bytes to the passed sequence.
+        @return  Number of bytes really read. */
+    virtual void writeData( const StreamDataSequence& orData, size_t nAtomSize = 1 ) override;
+    /** Reads nBytes bytes to the (existing) buffer opMem.
+        @return  Number of bytes really read. */
+    virtual void   writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize = 1 ) override;
+
+    /** Aligns the stream to a multiple of the passed size (relative to the
+        position of the wrapped stream at construction time). */
+    void                align( size_t nSize );
+
+    void         pad( sal_Int32 nBytes );
+
+    /** Aligns the stream according to the passed type and reads a value. */
+    template< typename Type >
+    void         writeAligned( Type nVal ) { align( sizeof( Type ) ); writeValue( nVal ); }
+
+private:
+    BinaryOutputStream*  mpOutStrm;           ///< The wrapped input stream.
+    sal_Int64           mnStrmPos;          ///< Tracks relative position in the stream.
+    sal_Int64           mnStrmSize;         ///< Size of the wrapped stream data.
+    sal_Int64           mnWrappedBeginPos;     ///< starting pos or wrapped stream
+};
+
+/** A pair of integer values as a property. */
+typedef ::std::pair< sal_Int32, sal_Int32 > AxPairData;
+
+/** Export helper to write simple and complex ActiveX form control properties
+    to a binary input stream. */
+class AxBinaryPropertyWriter
+{
+public:
+    explicit            AxBinaryPropertyWriter( BinaryOutputStream& rOutStrm, bool b64BitPropFlags = false );
+
+    /** Write an integer property value to the stream, the
+        respective flag in the property mask is set. */
+    template< typename StreamType, typename DataType >
+    void                writeIntProperty( DataType ornValue )
+                            { startNextProperty(); maOutStrm.writeAligned< StreamType >( ornValue ); }
+    /** Write a boolean property value to the stream, the
+        respective flag in the property mask is set. */
+    void                writeBoolProperty( bool orbValue );
+    /** Write a pair property the stream, the respective flag in
+        the property mask is set. */
+    void                writePairProperty( AxPairData& orPairData );
+    /** Write a string property to the stream, the respective flag
+        in the property mask is set. */
+    void                writeStringProperty( OUString& orValue );
+
+    /** Skips the next property clears the respective
+        flag in the property mask. */
+    void                skipProperty() { startNextProperty( true ); }
+
+    /** Final processing, write contents of all complex properties, writes record size */
+    void                finalizeExport();
+
+private:
+    bool                ensureValid();
+    void                startNextProperty( bool bSkip = false );
+
+private:
+    /** Base class for complex properties such as string, point, size, GUID, picture. */
+    struct ComplexProperty
+    {
+        virtual             ~ComplexProperty();
+        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) = 0;
+    };
+
+    /** Complex property for a 32-bit value pair, e.g. point or size. */
+    struct PairProperty final : public ComplexProperty
+    {
+        AxPairData&         mrPairData;
+
+        explicit            PairProperty( AxPairData& rPairData ) :
+                                mrPairData( rPairData ) {}
+        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) override;
+    };
+
+    /** Complex property for a string value. */
+    struct StringProperty final : public ComplexProperty
+    {
+        OUString&    mrValue;
+        sal_uInt32          mnSize;
+
+        explicit            StringProperty( OUString& rValue, sal_uInt32 nSize ) :
+                                mrValue( rValue ), mnSize( nSize ) {}
+        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) override;
+    };
+
+    /** Stream property for a picture or mouse icon. */
+    struct PictureProperty final : public ComplexProperty
+    {
+        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) override;
+    };
+
+    typedef RefVector< ComplexProperty > ComplexPropVector;
+
+private:
+    AxAlignedOutputStream maOutStrm;        ///< The input stream to read from.
+    ComplexPropVector   maLargeProps;       ///< Stores info for all used large properties.
+    ComplexPropVector   maStreamProps;      ///< Stores info for all used stream data properties.
+    sal_Int16           mnBlockSize;
+    sal_Int64           mnPropFlagsStart;     ///< pos of Prop flags
+    sal_Int64           mnPropFlags;        ///< Flags specifying existing properties.
+    sal_Int64           mnNextProp;         ///< Next property to read.
+    bool                mbValid;            ///< True = stream still valid.
+    bool                mb64BitPropFlags;
+};
+
+
+} // namespace oox::ole
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */