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