vcl/win/dtrans/FetcList.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/types.h>
  23 #include <com/sun/star/datatransfer/XTransferable.hpp>
  24 #include <com/sun/star/uno/XComponentContext.hpp>
  25 #include "Fetc.hxx"
  26
  27 #if !defined WIN32_LEAN_AND_MEAN
  28 # define WIN32_LEAN_AND_MEAN
  29 #endif
  30 #include <windows.h>
  31
  32 #include <vector>
  33
  34 /*****************************************************************
  35     a simple container for FORMATECT structures
  36     instances of this class are not thread-safe
  37 *****************************************************************/
  38
  39 class CFormatEtcContainer
  40 {
  41 public:
  42     CFormatEtcContainer( );
  43
  44     // duplicates not allowed
  45     void addFormatEtc( const CFormatEtc& fetc );
  46
  47     // removes the specified formatetc
  48     void removeFormatEtc( const CFormatEtc& fetc );
  49
  50     // removes the formatetc at pos
  51     void removeAllFormatEtc( );
  52
  53     bool hasFormatEtc( const CFormatEtc& fetc ) const;
  54
  55     bool hasElements( ) const;
  56
  57     // begin enumeration
  58     void beginEnumFormatEtc( );
  59
  60     // copies the specified number of formatetc structures starting
  61     // at the current enum position
  62     // the return value is the number of copied elements; if the
  63     // current enum position is at the end the return value is 0
  64     sal_uInt32 nextFormatEtc( LPFORMATETC lpFetc, sal_uInt32 aNum = 1 );
  65
  66     // skips the specified number of elements in the container
  67     bool skipFormatEtc( sal_uInt32 aNum );
  68
  69 protected:
  70     typedef std::vector< CFormatEtc > FormatEtcMap_t;
  71
  72 private:
  73     FormatEtcMap_t           m_FormatMap;
  74     FormatEtcMap_t::iterator m_EnumIterator;
  75 };
  76
  77 /*****************************************************************
  78     a helper class which converts data flavors to clipformats,
  79     creates an appropriate formatetc structures and if possible
  80     synthesizes clipboard formats if necessary, e.g. if text
  81     is provided a locale will also be provided;
  82     the class registers the formatetc within a CFormatEtcContainer
  83
  84     instances of this class are not thread-safe and multiple
  85     instances of this class would use the same static variables
  86     that's why this class should not be used by multiple threads,
  87     only one thread of a process should use it
  88 *****************************************************************/
  89
  90 // forward
  91 class CDataFormatTranslator;
  92
  93 class CFormatRegistrar
  94 {
  95 public:
  96     CFormatRegistrar( const css::uno::Reference< css::uno::XComponentContext >& rxContext,
  97                       const CDataFormatTranslator& aDataFormatTranslator );
  98
  99     void RegisterFormats( const css::uno::Reference< css::datatransfer::XTransferable >& aXTransferable,
 100                                    CFormatEtcContainer& aFormatEtcContainer );
 101
 102     bool hasSynthesizedLocale( ) const;
 103     static LCID getSynthesizedLocale( );
 104     static sal_uInt32 getRegisteredTextCodePage( );
 105     css::datatransfer::DataFlavor getRegisteredTextFlavor( ) const;
 106
 107     static bool isSynthesizeableFormat( const CFormatEtc& aFormatEtc );
 108     static bool needsToSynthesizeAccompanyFormats( const CFormatEtc& aFormatEtc );
 109
 110 private:
 111     OUString getCharsetFromDataFlavor( const css::datatransfer::DataFlavor& aFlavor );
 112
 113     bool hasUnicodeFlavor(
 114         const css::uno::Reference< css::datatransfer::XTransferable >& aXTransferable ) const;
 115
 116     static bool findLocaleForTextCodePage( );
 117
 118     static bool isLocaleOemCodePage( LCID lcid, sal_uInt32 codepage );
 119     static bool isLocaleAnsiCodePage( LCID lcid, sal_uInt32 codepage );
 120     static bool isLocaleCodePage( LCID lcid, LCTYPE lctype, sal_uInt32 codepage );
 121
 122     static BOOL CALLBACK EnumLocalesProc( LPSTR lpLocaleStr );
 123
 124 private:
 125     const CDataFormatTranslator&             m_DataFormatTranslator;
 126     bool                                     m_bHasSynthesizedLocale;
 127     css::datatransfer::DataFlavor            m_RegisteredTextFlavor;
 128
 129     const css::uno::Reference< css::uno::XComponentContext >  m_xContext;
 130
 131     static LCID       m_TxtLocale;
 132     static sal_uInt32 m_TxtCodePage;
 133
 134 private:
 135     CFormatRegistrar( const CFormatRegistrar& );
 136     CFormatRegistrar& operator=( const CFormatRegistrar& );
 137 };
 138
 139 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */