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