include/wx/os2/dataobj2.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/os2/dataobj2.h
   3 // Purpose:     declaration of standard wxDataObjectSimple-derived classes
   4 // Author:      Stefan Csomor (adapted from Robert Roebling's gtk port
   5 // Modified by:
   6 // Created:     10/21/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998, 1999 Vadim Zeitlin, Robert Roebling
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_OS2_DATAOBJ2_H_
  13 #define _WX_OS2_DATAOBJ2_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // wxBitmapDataObject is a specialization of wxDataObject for bitmaps
  17 // ----------------------------------------------------------------------------
  18
  19 class WXDLLIMPEXP_CORE wxBitmapDataObject : public wxBitmapDataObjectBase
  20 {
  21 public:
  22     // ctors
  23     wxBitmapDataObject();
  24     wxBitmapDataObject(const wxBitmap& bitmap);
  25
  26     // destr
  27     ~wxBitmapDataObject();
  28
  29     // override base class virtual to update PNG data too
  30     virtual void SetBitmap(const wxBitmap& bitmap);
  31
  32     // implement base class pure virtuals
  33     // ----------------------------------
  34
  35     virtual size_t GetDataSize() const { return m_pngSize; }
  36     virtual bool GetDataHere(void *buf) const;
  37     virtual bool SetData(size_t len, const void *buf);
  38
  39 protected:
  40     void Init() { m_pngData = (void *)NULL; m_pngSize = 0; }
  41     void Clear() { free(m_pngData); }
  42     void ClearAll() { Clear(); Init(); }
  43
  44     size_t      m_pngSize;
  45     void       *m_pngData;
  46
  47     void DoConvertToPng();
  48
  49 private:
  50     // Virtual function hiding supression
  51     size_t GetDataSize(const wxDataFormat& rFormat) const
  52     { return(wxDataObjectSimple::GetDataSize(rFormat)); }
  53     bool GetDataHere(const wxDataFormat& rFormat, void* pBuf) const
  54     { return(wxDataObjectSimple::GetDataHere(rFormat, pBuf)); }
  55     bool SetData(const wxDataFormat& rFormat, size_t nLen, const void* pBuf)
  56     { return(wxDataObjectSimple::SetData(rFormat, nLen, pBuf)); }
  57 };
  58
  59 // ----------------------------------------------------------------------------
  60 // wxFileDataObject is a specialization of wxDataObject for file names
  61 // ----------------------------------------------------------------------------
  62
  63 class wxFileDataObject : public wxFileDataObjectBase
  64 {
  65 public:
  66     // implement base class pure virtuals
  67     // ----------------------------------
  68
  69     void AddFile( const wxString &filename );
  70
  71     virtual size_t GetDataSize() const;
  72     virtual bool GetDataHere(void *buf) const;
  73     virtual bool SetData(size_t len, const void *buf);
  74
  75 private:
  76     // Virtual function hiding supression
  77     size_t GetDataSize(const wxDataFormat& rFormat) const
  78     { return(wxDataObjectSimple::GetDataSize(rFormat)); }
  79     bool GetDataHere(const wxDataFormat& rFormat, void* pBuf) const
  80     { return(wxDataObjectSimple::GetDataHere(rFormat, pBuf)); }
  81     bool SetData(const wxDataFormat& rFormat, size_t nLen, const void* pBuf)
  82     { return(wxDataObjectSimple::SetData(rFormat, nLen, pBuf)); }
  83 };
  84
  85 #endif // _WX_OS2_DATAOBJ2_H_