include/wx/gtk/dataobj2.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/dataobj2.h
   3 // Purpose:     declaration of standard wxDataObjectSimple-derived classes
   4 // Author:      Robert Roebling
   5 // Created:     19.10.99 (extracted from gtk/dataobj.h)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 1998, 1999 Vadim Zeitlin, Robert Roebling
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_GTK_DATAOBJ2_H_
  12 #define _WX_GTK_DATAOBJ2_H_
  13
  14 // ----------------------------------------------------------------------------
  15 // wxBitmapDataObject is a specialization of wxDataObject for bitmaps
  16 // ----------------------------------------------------------------------------
  17
  18 class WXDLLIMPEXP_CORE wxBitmapDataObject : public wxBitmapDataObjectBase
  19 {
  20 public:
  21     // ctors
  22     wxBitmapDataObject();
  23     wxBitmapDataObject(const wxBitmap& bitmap);
  24
  25     // destr
  26     virtual ~wxBitmapDataObject();
  27
  28     // override base class virtual to update PNG data too
  29     virtual void SetBitmap(const wxBitmap& bitmap);
  30
  31     // implement base class pure virtuals
  32     // ----------------------------------
  33
  34     virtual size_t GetDataSize() const { return m_pngSize; }
  35     virtual bool GetDataHere(void *buf) const;
  36     virtual bool SetData(size_t len, const void *buf);
  37     // Must provide overloads to avoid hiding them (and warnings about it)
  38     virtual size_t GetDataSize(const wxDataFormat&) const
  39     {
  40         return GetDataSize();
  41     }
  42     virtual bool GetDataHere(const wxDataFormat&, void *buf) const
  43     {
  44         return GetDataHere(buf);
  45     }
  46     virtual bool SetData(const wxDataFormat&, size_t len, const void *buf)
  47     {
  48         return SetData(len, buf);
  49     }
  50
  51 protected:
  52     void Clear() { free(m_pngData); }
  53     void ClearAll() { Clear(); Init(); }
  54
  55     size_t      m_pngSize;
  56     void       *m_pngData;
  57
  58     void DoConvertToPng();
  59
  60 private:
  61     void Init() { m_pngData = NULL; m_pngSize = 0; }
  62 };
  63
  64 // ----------------------------------------------------------------------------
  65 // wxFileDataObject is a specialization of wxDataObject for file names
  66 // ----------------------------------------------------------------------------
  67
  68 class WXDLLIMPEXP_CORE wxFileDataObject : public wxFileDataObjectBase
  69 {
  70 public:
  71     // implement base class pure virtuals
  72     // ----------------------------------
  73
  74     void AddFile( const wxString &filename );
  75
  76     virtual size_t GetDataSize() const;
  77     virtual bool GetDataHere(void *buf) const;
  78     virtual bool SetData(size_t len, const void *buf);
  79     // Must provide overloads to avoid hiding them (and warnings about it)
  80     virtual size_t GetDataSize(const wxDataFormat&) const
  81     {
  82         return GetDataSize();
  83     }
  84     virtual bool GetDataHere(const wxDataFormat&, void *buf) const
  85     {
  86         return GetDataHere(buf);
  87     }
  88     virtual bool SetData(const wxDataFormat&, size_t len, const void *buf)
  89     {
  90         return SetData(len, buf);
  91     }
  92 };
  93
  94 // ----------------------------------------------------------------------------
  95 // wxURLDataObject is a specialization of wxDataObject for URLs
  96 // ----------------------------------------------------------------------------
  97
  98 class WXDLLIMPEXP_CORE wxURLDataObject : public wxDataObjectComposite
  99 {
 100 public:
 101     wxURLDataObject(const wxString& url = wxEmptyString);
 102
 103     wxString GetURL() const;
 104     void SetURL(const wxString& url);
 105
 106 private:
 107     class wxTextURIListDataObject* const m_dobjURIList;
 108     wxTextDataObject* const m_dobjText;
 109
 110     wxDECLARE_NO_COPY_CLASS(wxURLDataObject);
 111 };
 112
 113
 114 #endif // _WX_GTK_DATAOBJ2_H_
 115