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       1                 :            : /*
       2                 :            :  * Version: MPL 1.1 / GPLv3+ / LGPLv3+
       3                 :            :  *
       4                 :            :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :            :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :            :  * the License. You may obtain a copy of the License at
       7                 :            :  * http://www.mozilla.org/MPL/
       8                 :            :  *
       9                 :            :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :            :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :            :  * for the specific language governing rights and limitations under the
      12                 :            :  * License.
      13                 :            :  *
      14                 :            :  * The Initial Developer of the Original Code is
      15                 :            :  *       Miklos Vajna <vmiklos@suse.cz> (SUSE, Inc.)
      16                 :            :  * Portions created by the Initial Developer are Copyright (C) 2012 the
      17                 :            :  * Initial Developer. All Rights Reserved.
      18                 :            :  *
      19                 :            :  * Contributor(s):
      20                 :            :  *
      21                 :            :  * Alternatively, the contents of this file may be used under the terms of
      22                 :            :  * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
      23                 :            :  * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
      24                 :            :  * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
      25                 :            :  * instead of those above.
      26                 :            :  */
      27                 :            : 
      28                 :            : #ifndef _RTFSTRINGBUFFER_HXX_
      29                 :            : #define _RTFSTRINGBUFFER_HXX_
      30                 :            : 
      31                 :            : #include <rtl/strbuf.hxx>
      32                 :            : #include <vector>
      33                 :            : 
      34                 :            : class SwGrfNode;
      35                 :            : class SwFlyFrmFmt;
      36                 :            : class RtfAttributeOutput;
      37                 :            : 
      38                 :            : /// Contains a buffered string or graphic during RTF export.
      39                 :       2028 : class RtfStringBufferValue
      40                 :            : {
      41                 :            : public:
      42                 :            :     /// Constructor for a string buffering.
      43                 :            :     RtfStringBufferValue();
      44                 :            :     /// Constructor for graphic buffering.
      45                 :            :     RtfStringBufferValue(const SwFlyFrmFmt* pFlyFrmFmt, const SwGrfNode* pGrfNode);
      46                 :            :     /// This version handles graphics.
      47                 :            :     void makeStringAndClear(RtfAttributeOutput* pAttributeOutput);
      48                 :            :     /// This one doesn't.
      49                 :            :     rtl::OString makeStringAndClear();
      50                 :            :     bool isGraphic() const;
      51                 :            : 
      52                 :            :     rtl::OStringBuffer m_aBuffer;
      53                 :            :     const SwFlyFrmFmt* m_pFlyFrmFmt;
      54                 :            :     const SwGrfNode* m_pGrfNode;
      55                 :            : };
      56                 :            : 
      57                 :            : /// Wrapper around OStringBuffers, so less hexdump of graphics have to be kept in memory during RTF export.
      58                 :        282 : class RtfStringBuffer
      59                 :            : {
      60                 :            : public:
      61                 :            :     RtfStringBuffer();
      62                 :            :     /// Length of all the contained buffers.
      63                 :            :     sal_Int32 getLength() const;
      64                 :            :     /// Writes the contents of the buffer directly to the supplied stream.
      65                 :            :     void makeStringAndClear(RtfAttributeOutput* pAttributeOutput);
      66                 :            :     /// Returns the bufferent strings as a string (ignores graphic elements!)
      67                 :            :     rtl::OString makeStringAndClear();
      68                 :            :     /// Access to the last buffer.
      69                 :            :     rtl::OStringBuffer& getLastBuffer();
      70                 :            :     rtl::OStringBuffer* operator->();
      71                 :            :     /// Similar to ->setLength(0), but for all buffers.
      72                 :            :     void clear();
      73                 :            :     /// Same as ->append(), but for graphics and without expanding contents to save memory.
      74                 :            :     void append(const SwFlyFrmFmt* pFlyFrmFmt, const SwGrfNode* pGrfNode);
      75                 :            :     /// Append all contained buffers and clear the argument.
      76                 :            :     void appendAndClear(RtfStringBuffer& rBuf);
      77                 :            : private:
      78                 :            :     typedef std::vector<RtfStringBufferValue> Values_t;
      79                 :            :     Values_t m_aValues;
      80                 :            : };
      81                 :            : 
      82                 :            : #endif // _RTFSTRINGBUFFER_HXX_
      83                 :            : 
      84                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */