wxPython/src/_clipbrd.i

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        _clipbrd.i
   3 // Purpose:     SWIG definitions for the Clipboard
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     31-October-1999
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2003 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // Not a %module
  14
  15
  16 //---------------------------------------------------------------------------
  17 %newgroup
  18
  19 %{
  20 %}
  21
  22 DocStr(wxClipboard,
  23 "wx.Clipboard represents the system clipboard and provides methods to
  24 copy data to it or paste data from it.  Normally, you should only use
  25 ``wx.TheClipboard`` which is a reference to a global wx.Clipboard
  26 instance.
  27
  28 Call ``wx.TheClipboard``'s `Open` method to get ownership of the
  29 clipboard. If this operation returns True, you now own the
  30 clipboard. Call `SetData` to put data on the clipboard, or `GetData`
  31 to retrieve data from the clipboard.  Call `Close` to close the
  32 clipboard and relinquish ownership. You should keep the clipboard open
  33 only momentarily.
  34
  35 :see: `wx.DataObject`
  36 ", "");
  37
  38
  39
  40 class wxClipboard : public wxObject {
  41 public:
  42     DocCtorStr(
  43         wxClipboard(),
  44         "", "");
  45
  46     ~wxClipboard();
  47
  48
  49     DocDeclStr(
  50         virtual bool , Open(),
  51         "Call this function to open the clipboard before calling SetData and
  52 GetData.  Call Close when you have finished with the clipboard.  You
  53 should keep the clipboard open for only a very short time.  Returns
  54 True on success.", "");
  55
  56
  57     DocDeclStr(
  58         virtual void , Close(),
  59         "Closes the clipboard.", "");
  60
  61
  62     DocDeclStr(
  63         virtual bool , IsOpened() const,
  64         "Query whether the clipboard is opened", "");
  65
  66
  67
  68     %disownarg( wxDataObject *data );
  69
  70     DocDeclStr(
  71         virtual bool , AddData( wxDataObject *data ),
  72         "Call this function to add the data object to the clipboard. You may
  73 call this function repeatedly after having cleared the clipboard.
  74 After this function has been called, the clipboard owns the data, so
  75 do not delete the data explicitly.
  76
  77 :see: `wx.DataObject`", "");
  78
  79
  80     DocDeclStr(
  81         virtual bool , SetData( wxDataObject *data ),
  82         "Set the clipboard data, this is the same as `Clear` followed by
  83 `AddData`.
  84
  85 :see: `wx.DataObject`", "");
  86
  87     %cleardisown( wxDataObject *data );
  88
  89
  90     DocDeclStr(
  91         virtual bool , IsSupported( const wxDataFormat& format ),
  92         "Returns True if the given format is available in the data object(s) on
  93 the clipboard.", "");
  94
  95     DocDeclStr(
  96         virtual bool , GetData( wxDataObject& data ),
  97         "Call this function to fill data with data on the clipboard, if
  98 available in the required format. Returns true on success.", "");
  99
 100
 101     DocDeclStr(
 102         virtual void , Clear(),
 103         "Clears data from the clipboard object and also the system's clipboard
 104 if possible.", "");
 105
 106
 107     DocDeclStr(
 108         virtual bool , Flush(),
 109         "Flushes the clipboard: this means that the data which is currently on
 110 clipboard will stay available even after the application exits,
 111 possibly eating memory, otherwise the clipboard will be emptied on
 112 exit.  Returns False if the operation is unsuccesful for any reason.", "");
 113
 114
 115     DocDeclStr(
 116         virtual void , UsePrimarySelection( bool primary = true ),
 117         "On platforms supporting it (the X11 based platforms), selects the
 118 so called PRIMARY SELECTION as the clipboard as opposed to the
 119 normal clipboard, if primary is True.", "");
 120
 121
 122     DocDeclStr(
 123         static wxClipboard *, Get(),
 124         "Returns global instance (wxTheClipboard) of the object.", "");
 125
 126 };
 127
 128
 129 // Previously we just declared wxTheClipboard as a global, but in C++
 130 // is has been changed to be a macro for wxClipboard::Get, but the
 131 // swig generated code will try to evaluate it when it assigns to the
 132 // swig wrapper var so this causes Get to be called too early on
 133 // wxGTK.  So instead we'll create a Python class that can delay the
 134 // Get until it is really needed, which is similar in effect to what
 135 // is really happening on the C++ side too.
 136 %pythoncode {
 137     class _wxPyDelayedInitWrapper(object):
 138         def __init__(self, initfunc, *args, **kwargs):
 139             self._initfunc = initfunc
 140             self._args = args
 141             self._kwargs = kwargs
 142             self._instance = None
 143         def _checkInstance(self):
 144             if self._instance is None:
 145                 if wx.GetApp():
 146                     self._instance = self._initfunc(*self._args, **self._kwargs)
 147         def __getattr__(self, name):
 148             self._checkInstance()
 149             return getattr(self._instance, name)
 150         def __repr__(self):
 151             self._checkInstance()
 152             return repr(self._instance)
 153     TheClipboard = _wxPyDelayedInitWrapper(Clipboard.Get)
 154 }
 155
 156
 157 //---------------------------------------------------------------------------
 158
 159
 160 DocStr(wxClipboardLocker,
 161 "A helpful class for opening the clipboard and automatically
 162 closing it when the locker is destroyed.", "");
 163
 164 class wxClipboardLocker
 165 {
 166 public:
 167     wxClipboardLocker(wxClipboard *clipboard = NULL);
 168     ~wxClipboardLocker();
 169
 170     DocStr(__nonzero__,
 171            "A ClipboardLocker instance evaluates to True if the clipboard was
 172 successfully opened.", "");
 173     %extend {
 174         bool __nonzero__()   { return !!(*self); }
 175     }
 176 };
 177
 178
 179 //---------------------------------------------------------------------------