include/wx/msw/ole/dataobj2.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/ole/dataobj2.h
   3 // Purpose:     second part of platform specific wxDataObject header -
   4 //              declarations of predefined wxDataObjectSimple-derived classes
   5 // Author:      Vadim Zeitlin
   6 // Modified by:
   7 // Created:     21.10.99
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
  10 // Licence:     wxWindows licence
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_MSW_OLE_DATAOBJ2_H
  14 #define _WX_MSW_OLE_DATAOBJ2_H
  15
  16 // ----------------------------------------------------------------------------
  17 // wxBitmapDataObject is a specialization of wxDataObject for bitmap data
  18 //
  19 // NB: in fact, under MSW we support CF_DIB (and not CF_BITMAP) clipboard
  20 //     format and we also provide wxBitmapDataObject2 for CF_BITMAP (which is
  21 //     rarely used). This is ugly, but I haven't found a solution for it yet.
  22 // ----------------------------------------------------------------------------
  23
  24 class WXDLLIMPEXP_CORE wxBitmapDataObject : public wxBitmapDataObjectBase
  25 {
  26 public:
  27     // ctors
  28     wxBitmapDataObject(const wxBitmap& bitmap = wxNullBitmap)
  29         : wxBitmapDataObjectBase(bitmap)
  30         {
  31             SetFormat(wxDF_DIB);
  32
  33             m_data = NULL;
  34         }
  35
  36     // implement base class pure virtuals
  37     virtual size_t GetDataSize() const;
  38     virtual bool GetDataHere(void *buf) const;
  39     virtual bool SetData(size_t len, const void *buf);
  40
  41     virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const
  42         { return GetDataSize(); }
  43     virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
  44                              void *buf) const
  45         { return GetDataHere(buf); }
  46     virtual bool SetData(const wxDataFormat& WXUNUSED(format),
  47                          size_t len, const void *buf)
  48         { return SetData(len, buf); }
  49
  50 private:
  51     // the DIB data
  52     void /* BITMAPINFO */ *m_data;
  53
  54     wxDECLARE_NO_COPY_CLASS(wxBitmapDataObject);
  55 };
  56
  57 // ----------------------------------------------------------------------------
  58 // wxBitmapDataObject2 - a data object for CF_BITMAP
  59 //
  60 // FIXME did I already mention it was ugly?
  61 // ----------------------------------------------------------------------------
  62
  63 class WXDLLIMPEXP_CORE wxBitmapDataObject2 : public wxBitmapDataObjectBase
  64 {
  65 public:
  66     // ctors
  67     wxBitmapDataObject2(const wxBitmap& bitmap = wxNullBitmap)
  68         : wxBitmapDataObjectBase(bitmap)
  69         {
  70         }
  71
  72     // implement base class pure virtuals
  73     virtual size_t GetDataSize() const;
  74     virtual bool GetDataHere(void *buf) const;
  75     virtual bool SetData(size_t len, const void *buf);
  76
  77     virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const
  78         { return GetDataSize(); }
  79     virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
  80                              void *buf) const
  81         { return GetDataHere(buf); }
  82     virtual bool SetData(const wxDataFormat& WXUNUSED(format),
  83                          size_t len, const void *buf)
  84         { return SetData(len, buf); }
  85
  86 private:
  87     wxDECLARE_NO_COPY_CLASS(wxBitmapDataObject2);
  88 };
  89
  90 // ----------------------------------------------------------------------------
  91 // wxFileDataObject - data object for CF_HDROP
  92 // ----------------------------------------------------------------------------
  93
  94 class WXDLLIMPEXP_CORE wxFileDataObject : public wxFileDataObjectBase
  95 {
  96 public:
  97     wxFileDataObject() { }
  98
  99     // implement base class pure virtuals
 100     virtual bool SetData(size_t len, const void *buf);
 101     virtual size_t GetDataSize() const;
 102     virtual bool GetDataHere(void *pData) const;
 103     virtual void AddFile(const wxString& file);
 104
 105     virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const
 106         { return GetDataSize(); }
 107     virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
 108                              void *buf) const
 109         { return GetDataHere(buf); }
 110     virtual bool SetData(const wxDataFormat& WXUNUSED(format),
 111                          size_t len, const void *buf)
 112         { return SetData(len, buf); }
 113
 114 private:
 115     wxDECLARE_NO_COPY_CLASS(wxFileDataObject);
 116 };
 117
 118 // ----------------------------------------------------------------------------
 119 // wxURLDataObject: data object for URLs
 120 // ----------------------------------------------------------------------------
 121
 122 class WXDLLIMPEXP_CORE wxURLDataObject : public wxDataObjectComposite
 123 {
 124 public:
 125     // initialize with URL in ctor or use SetURL later
 126     wxURLDataObject(const wxString& url = wxEmptyString);
 127
 128     // return the URL as string
 129     wxString GetURL() const;
 130
 131     // Set a string as the URL in the data object
 132     void SetURL(const wxString& url);
 133
 134     // override to set m_textFormat
 135     virtual bool SetData(const wxDataFormat& format,
 136                          size_t len,
 137                          const void *buf);
 138
 139 private:
 140     // last data object we got data in
 141     wxDataObjectSimple *m_dataObjectLast;
 142
 143     wxDECLARE_NO_COPY_CLASS(wxURLDataObject);
 144 };
 145
 146 #endif // _WX_MSW_OLE_DATAOBJ2_H