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 license
  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 WXDLLEXPORT 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 private:
  42     // the DIB data
  43     void /* BITMAPINFO */ *m_data;
  44 };
  45
  46 // ----------------------------------------------------------------------------
  47 // wxBitmapDataObject2 - a data object for CF_BITMAP
  48 //
  49 // FIXME did I already mention it was ugly?
  50 // ----------------------------------------------------------------------------
  51
  52 class WXDLLEXPORT wxBitmapDataObject2 : public wxBitmapDataObjectBase
  53 {
  54 public:
  55     // ctors
  56     wxBitmapDataObject2(const wxBitmap& bitmap = wxNullBitmap)
  57         : wxBitmapDataObjectBase(bitmap)
  58         {
  59         }
  60
  61     // implement base class pure virtuals
  62     virtual size_t GetDataSize() const;
  63     virtual bool GetDataHere(void *buf) const;
  64     virtual bool SetData(size_t len, const void *buf);
  65 };
  66
  67 // ----------------------------------------------------------------------------
  68 // wxFileDataObject - data object for CF_HDROP
  69 // ----------------------------------------------------------------------------
  70
  71 class WXDLLEXPORT wxFileDataObject : public wxFileDataObjectBase
  72 {
  73 public:
  74     // implement base class pure virtuals
  75     virtual bool SetData(size_t len, const void *buf);
  76     virtual size_t GetDataSize() const;
  77     virtual bool GetDataHere(void *pData) const;
  78     virtual void AddFile(const wxString& file);
  79 };
  80
  81 // ----------------------------------------------------------------------------
  82 // wxURLDataObject: data object for URLs
  83 // ----------------------------------------------------------------------------
  84
  85 class WXDLLEXPORT wxURLDataObject : public wxDataObjectComposite
  86 {
  87 public:
  88     wxURLDataObject();
  89
  90     // return the URL as string
  91     wxString GetURL() const;
  92
  93     // Set a string as the URL in the data object
  94     void SetURL(const wxString& url);
  95
  96     // override to set m_textFormat
  97     virtual bool SetData(const wxDataFormat& format,
  98                          size_t len,
  99                          const void *buf);
 100
 101 private:
 102     // last data object we got data in
 103     wxDataObjectSimple *m_dataObjectLast;
 104 };
 105
 106 #endif // _WX_MSW_OLE_DATAOBJ2_H