include/wx/gtk/dataobj.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dataobj.h
   3 // Purpose:     declaration of the wxDataObject class
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Vadim Zeitlin, Robert Roebling
   7 // Licence:     wxWindows license
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef __GTKDATAOBJECTH__
  11 #define __GTKDATAOBJECTH__
  12
  13 #ifdef __GNUG__
  14 #pragma interface
  15 #endif
  16
  17 #include "wx/defs.h"
  18 #include "wx/object.h"
  19 #include "wx/string.h"
  20 #include "wx/bitmap.h"
  21
  22 //-------------------------------------------------------------------------
  23 // classes
  24 //-------------------------------------------------------------------------
  25
  26 class wxDataObject;
  27 class wxTextDataObject;
  28 class wxBitmapDataObject;
  29 class wxPrivateDataObject;
  30 class wxFileDataObject;
  31
  32 //-------------------------------------------------------------------------
  33 // wxDataObject
  34 //-------------------------------------------------------------------------
  35
  36 class wxDataObject: public wxObject
  37 {
  38   DECLARE_ABSTRACT_CLASS( wxDataObject )
  39
  40 public:
  41
  42   wxDataObject() {}
  43   ~wxDataObject() {}
  44
  45   virtual wxDataFormat GetFormat() const = 0;
  46
  47   // implementation
  48
  49   GdkAtom  m_formatAtom;
  50 };
  51
  52 // ----------------------------------------------------------------------------
  53 // wxTextDataObject is a specialization of wxDataObject for text data
  54 // ----------------------------------------------------------------------------
  55
  56 class wxTextDataObject : public wxDataObject
  57 {
  58   DECLARE_DYNAMIC_CLASS( wxTextDataObject )
  59
  60 public:
  61
  62   wxTextDataObject() {}
  63   wxTextDataObject( const wxString& strText )
  64     : m_strText(strText) { }
  65
  66   virtual wxDataFormat GetFormat() const
  67     { return wxDF_TEXT; }
  68
  69   void SetText( const wxString& strText)
  70     { m_strText = strText; }
  71
  72   wxString GetText()
  73     { return m_strText; }
  74
  75 private:
  76   wxString  m_strText;
  77
  78 };
  79
  80 // ----------------------------------------------------------------------------
  81 // wxFileDataObject is a specialization of wxDataObject for file names
  82 // ----------------------------------------------------------------------------
  83
  84 class wxFileDataObject : public wxDataObject
  85 {
  86   DECLARE_DYNAMIC_CLASS( wxFileDataObject )
  87
  88 public:
  89
  90   wxFileDataObject(void) {}
  91
  92   virtual wxDataFormat GetFormat() const
  93     { return wxDF_FILENAME; }
  94
  95   void AddFile( const wxString &file )
  96     { m_files += file; m_files += (char)0; }
  97
  98   wxString GetFiles()
  99     { return m_files; }
 100
 101 private:
 102   wxString  m_files;
 103
 104 };
 105
 106 // ----------------------------------------------------------------------------
 107 // wxBitmapDataObject is a specialization of wxDataObject for bitmaps
 108 // ----------------------------------------------------------------------------
 109
 110 class wxBitmapDataObject : public wxDataObject
 111 {
 112   DECLARE_DYNAMIC_CLASS( wxBitmapDataObject )
 113
 114 public:
 115
 116   wxBitmapDataObject(void) {}
 117
 118   virtual wxDataFormat GetFormat() const
 119     { return wxDF_BITMAP; }
 120
 121   void SetBitmap( const wxBitmap &bitmap )
 122     { m_bitmap = bitmap; }
 123
 124   wxBitmap GetBitmap()
 125     { return m_bitmap; }
 126
 127 private:
 128   wxBitmap  m_bitmap;
 129 };
 130
 131 // ----------------------------------------------------------------------------
 132 // wxPrivateDataObject is a specialization of wxDataObject for app specific data
 133 // ----------------------------------------------------------------------------
 134
 135 class wxPrivateDataObject : public wxDataObject
 136 {
 137   DECLARE_DYNAMIC_CLASS( wxPrivateDataObject )
 138
 139 public:
 140
 141   wxPrivateDataObject()
 142     { m_size = 0; m_data = (char*) NULL; }
 143
 144   ~wxPrivateDataObject()
 145     { if (m_data) delete[] m_data; }
 146
 147   virtual wxDataFormat GetFormat() const
 148     { return wxDF_PRIVATE; }
 149
 150   // the string ID identifies the format of clipboard or DnD data. a word
 151   // processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
 152   // to the clipboard - the latter with the Id "WXWORD_FORMAT".
 153
 154   void SetId( const wxString& id )
 155     { m_id = id; }
 156
 157   wxString GetId()
 158     { return m_id; }
 159
 160   // will make internal copy
 161   void SetData( const char *data, size_t size );
 162
 163   size_t GetDataSize()
 164     { return m_size; }
 165
 166   char* GetData()
 167     { return m_data; }
 168
 169 private:
 170   size_t     m_size;
 171   char*      m_data;
 172   wxString   m_id;
 173 };
 174
 175
 176 #endif
 177        //__GTKDNDH__
 178