include/wx/motif/clipbrd.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        clipbrd.h
   3 // Purpose:     Clipboard functionality.
   4 //              Note: this functionality is under review, and
   5 //              is derived from wxWindows 1.xx code. Please contact
   6 //              the wxWindows developers for further information.
   7 // Author:      Julian Smart
   8 // Modified by:
   9 // Created:     17/09/98
  10 // RCS-ID:      $Id$
  11 // Copyright:   (c) Julian Smart
  12 // Licence:     wxWindows licence
  13 /////////////////////////////////////////////////////////////////////////////
  14
  15 #ifndef _WX_CLIPBRD_H_
  16 #define _WX_CLIPBRD_H_
  17
  18 #ifdef __GNUG__
  19 #pragma interface "clipbrd.h"
  20 #endif
  21
  22 #include "wx/defs.h"
  23 #include "wx/setup.h"
  24
  25 #include "wx/list.h"
  26 #include "wx/module.h"
  27
  28 bool WXDLLEXPORT wxOpenClipboard();
  29 bool WXDLLEXPORT wxClipboardOpen();
  30 bool WXDLLEXPORT wxCloseClipboard();
  31 bool WXDLLEXPORT wxEmptyClipboard();
  32 bool WXDLLEXPORT wxIsClipboardFormatAvailable(wxDataFormat dataFormat);
  33 bool WXDLLEXPORT wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width = 0, int height = 0);
  34 wxObject* WXDLLEXPORT wxGetClipboardData(wxDataFormat dataFormat, long *len = NULL);
  35 wxDataFormat WXDLLEXPORT wxEnumClipboardFormats(wxDataFormat dataFormat);
  36 wxDataFormat WXDLLEXPORT wxRegisterClipboardFormat(char *formatName);
  37 bool WXDLLEXPORT wxGetClipboardFormatName(wxDataFormat dataFormat, char *formatName, int maxCount);
  38
  39 //-----------------------------------------------------------------------------
  40 // wxClipboard
  41 //-----------------------------------------------------------------------------
  42
  43 class WXDLLEXPORT wxDataObject;
  44 class WXDLLEXPORT wxClipboard: public wxObject
  45 {
  46   DECLARE_DYNAMIC_CLASS(wxClipboard)
  47
  48 public:
  49
  50   wxClipboard();
  51   ~wxClipboard();
  52
  53   // open the clipboard before SetData() and GetData()
  54   virtual bool Open();
  55
  56   // close the clipboard after SetData() and GetData()
  57   virtual void Close();
  58
  59   // can be called several times
  60   virtual bool SetData( wxDataObject *data );
  61
  62   // format available on the clipboard ?
  63   // supply ID if private format, the same as wxPrivateDataObject::SetId()
  64   virtual bool IsSupportedFormat( wxDataFormat format, const wxString &id = wxEmptyString );
  65
  66   // fill data with data on the clipboard (if available)
  67   virtual bool GetData( wxDataObject *data );
  68
  69   // clears wxTheClipboard and the system's clipboard if possible
  70   virtual void Clear();
  71
  72  // implementation
  73
  74   bool              m_open;
  75   wxList            m_data;
  76 };
  77
  78 /* The clipboard */
  79 WXDLLEXPORT_DATA(extern wxClipboard*) wxTheClipboard;
  80
  81 //-----------------------------------------------------------------------------
  82 // wxClipboardModule
  83 //-----------------------------------------------------------------------------
  84
  85 class wxClipboardModule: public wxModule
  86 {
  87   DECLARE_DYNAMIC_CLASS(wxClipboardModule)
  88
  89 public:
  90     wxClipboardModule() {}
  91     bool OnInit();
  92     void OnExit();
  93 };
  94
  95 // This is the old, 1.68 implementation
  96 #if 0
  97
  98 /* A clipboard client holds data belonging to the clipboard.
  99    For plain text, a client is not necessary. */
 100 class WXDLLEXPORT wxClipboardClient : public wxObject
 101 {
 102   DECLARE_ABSTRACT_CLASS(wxClipboardClient)
 103
 104  public:
 105   /* This list should be filled in with strings indicating the formats
 106      this client can provide. Almost all clients will provide "TEXT".
 107      Format names should be 4 characters long, so things will work
 108      out on the Macintosh */
 109   wxStringList formats;
 110
 111   /* This method is called when the client is losing the selection. */
 112   virtual void BeingReplaced() = 0;
 113
 114   /* This method is called when someone wants the data this client is
 115      supplying to the clipboard. "format" is a string indicating the
 116      format of the data - one of the strings from the "formats"
 117      list. "*size" should be filled with the size of the resulting
 118      data. In the case of text, "*size" does not count the
 119      NULL terminator. */
 120   virtual char *GetData(char *format, long *size) = 0;
 121 };
 122
 123 /* ONE instance of this class: */
 124 class WXDLLEXPORT wxClipboard : public wxObject
 125 {
 126   DECLARE_DYNAMIC_CLASS(wxClipboard)
 127
 128  public:
 129   wxClipboardClient *clipOwner;
 130   char *cbString, *sentString, *receivedString;
 131   void *receivedTargets;
 132   long receivedLength;
 133
 134   wxClipboard();
 135   ~wxClipboard();
 136
 137   /* Set the clipboard data owner. "time" comes from the event record. */
 138   void SetClipboardClient(wxClipboardClient *, long time);
 139
 140   /* Set the clipboard string; does not require a client. */
 141   void SetClipboardString(char *, long time);
 142
 143   /* Get data from the clipboard in the format "TEXT". */
 144   char *GetClipboardString(long time);
 145
 146   /* Get data from the clipboard */
 147   char *GetClipboardData(char *format, long *length, long time);
 148
 149   /* Get the clipboard client directly. Will be NULL if clipboard data
 150      is a string, or if some other application owns the clipboard.
 151      This can be useful for shortcutting data translation, if the
 152      clipboard user can check for a specific client. (This is used
 153      by the wxMediaEdit class.) */
 154   wxClipboardClient *GetClipboardClient();
 155 };
 156
 157 /* Initialize wxTheClipboard. Can be called repeatedly */
 158 void WXDLLEXPORT wxInitClipboard();
 159
 160 /* The clipboard */
 161 WXDLLEXPORT_DATA(extern wxClipboard*) wxTheClipboard;
 162
 163 #endif
 164   // Old clipboard class
 165
 166 #endif
 167     // _WX_CLIPBRD_H_