wxPython/src/_dnd.i

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        _dnd.i
   3 // Purpose:     SWIG definitions for the Drag-n-drop classes
   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 #ifndef __WXX11__
  18
  19 %newgroup
  20
  21 // flags for wxDropSource::DoDragDrop()
  22 //
  23 // NB: wxDrag_CopyOnly must be 0 (== False) and wxDrag_AllowMove must be 1
  24 //     (== True) for compatibility with the old DoDragDrop(bool) method!
  25 enum
  26 {
  27     wxDrag_CopyOnly    = 0, // allow only copying
  28     wxDrag_AllowMove   = 1, // allow moving (copying is always allowed)
  29     wxDrag_DefaultMove = 3  // the default operation is move, not copy
  30 };
  31
  32 // result of wxDropSource::DoDragDrop() call
  33 enum wxDragResult
  34 {
  35     wxDragError,    // error prevented the d&d operation from completing
  36     wxDragNone,     // drag target didn't accept the data
  37     wxDragCopy,     // the data was successfully copied
  38     wxDragMove,     // the data was successfully moved (MSW only)
  39     wxDragLink,     // operation is a drag-link
  40     wxDragCancel    // the operation was cancelled by user (not an error)
  41 };
  42
  43 bool wxIsDragResultOk(wxDragResult res);
  44
  45 //---------------------------------------------------------------------------
  46
  47
  48 // wxDropSource is the object you need to create (and call DoDragDrop on it)
  49 // to initiate a drag-and-drop operation
  50
  51
  52
  53 %{
  54 IMP_PYCALLBACK_BOOL_DR(wxPyDropSource, wxDropSource, GiveFeedback);
  55 %}
  56
  57
  58 %name(DropSource) class wxPyDropSource {
  59 public:
  60 #ifndef __WXGTK__
  61      wxPyDropSource(wxWindow *win = NULL,
  62                     const wxCursor &copy = wxNullCursor,
  63                     const wxCursor &move = wxNullCursor,
  64                     const wxCursor &none = wxNullCursor);
  65 #else
  66     wxPyDropSource(wxWindow *win = NULL,
  67                    const wxIcon& copy = wxNullIcon,
  68                    const wxIcon& move = wxNullIcon,
  69                    const wxIcon& none = wxNullIcon);
  70 #endif
  71
  72     void _setCallbackInfo(PyObject* self, PyObject* _class, int incref);
  73     %pragma(python) addtomethod = "__init__:self._setCallbackInfo(self, wxDropSource, 0)"
  74     ~wxPyDropSource();
  75
  76     // set the data which is transfered by drag and drop
  77     void SetData(wxDataObject& data);
  78
  79     wxDataObject *GetDataObject();
  80
  81     // set the icon corresponding to given drag result
  82     void SetCursor(wxDragResult res, const wxCursor& cursor);
  83
  84     wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
  85
  86     bool base_GiveFeedback(wxDragResult effect);
  87 };
  88
  89
  90 //---------------------------------------------------------------------------
  91
  92 // wxDropTarget should be associated with a window if it wants to be able to
  93 // receive data via drag and drop.
  94 //
  95 // To use this class, you should derive from wxDropTarget and implement
  96 // OnData() pure virtual method. You may also wish to override OnDrop() if you
  97 // want to accept the data only inside some region of the window (this may
  98 // avoid having to copy the data to this application which happens only when
  99 // OnData() is called)
 100
 101
 102 // Just a place holder for the type system.  The real base class for
 103 // wxPython is wxPyDropTarget
 104 // class wxDropTarget {
 105 // public:
 106 // };
 107
 108
 109 %{
 110 IMP_PYCALLBACK__(wxPyDropTarget, wxDropTarget, OnLeave);
 111 IMP_PYCALLBACK_DR_2WXCDR(wxPyDropTarget, wxDropTarget, OnEnter);
 112 IMP_PYCALLBACK_DR_2WXCDR(wxPyDropTarget, wxDropTarget, OnDragOver);
 113 IMP_PYCALLBACK_DR_2WXCDR_pure(wxPyDropTarget, wxDropTarget, OnData);
 114 IMP_PYCALLBACK_BOOL_INTINT(wxPyDropTarget, wxDropTarget, OnDrop);
 115 %}
 116
 117
 118 %name(DropTarget) class wxPyDropTarget // : public wxDropTarget
 119 {
 120 public:
 121     %addtofunc wxPyDropTarget
 122        "if args: args[0].thisown = 0;
 123         self._setCallbackInfo(self, DropTarget)"
 124
 125     wxPyDropTarget(wxDataObject *dataObject = NULL);
 126     void _setCallbackInfo(PyObject* self, PyObject* _class);
 127
 128     ~wxPyDropTarget();
 129
 130     // get/set the associated wxDataObject
 131     wxDataObject *GetDataObject();
 132     %addtofunc SetDataObject "args[1].thisown = 0"
 133     void SetDataObject(wxDataObject *dataObject);
 134
 135     wxDragResult base_OnEnter(wxCoord x, wxCoord y, wxDragResult def);
 136     wxDragResult base_OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
 137     void base_OnLeave();
 138     bool base_OnDrop(wxCoord x, wxCoord y);
 139
 140     // may be called *only* from inside OnData() and will fill m_dataObject
 141     // with the data from the drop source if it returns True
 142     bool GetData();
 143
 144 };
 145
 146
 147 %pythoncode { PyDropTarget = DropTarget }
 148
 149 //---------------------------------------------------------------------------
 150
 151 // A simple wxDropTarget derived class for text data: you only need to
 152 // override OnDropText() to get something working
 153
 154
 155 %{
 156 class wxPyTextDropTarget : public wxTextDropTarget {
 157 public:
 158     wxPyTextDropTarget() {}
 159
 160     DEC_PYCALLBACK_BOOL_INTINTSTR_pure(OnDropText);
 161
 162     DEC_PYCALLBACK__(OnLeave);
 163     DEC_PYCALLBACK_DR_2WXCDR(OnEnter);
 164     DEC_PYCALLBACK_DR_2WXCDR(OnDragOver);
 165     DEC_PYCALLBACK_DR_2WXCDR(OnData);
 166     DEC_PYCALLBACK_BOOL_INTINT(OnDrop);
 167
 168     PYPRIVATE;
 169 };
 170
 171 IMP_PYCALLBACK_BOOL_INTINTSTR_pure(wxPyTextDropTarget, wxTextDropTarget, OnDropText);
 172 IMP_PYCALLBACK__(wxPyTextDropTarget, wxTextDropTarget, OnLeave);
 173 IMP_PYCALLBACK_DR_2WXCDR(wxPyTextDropTarget, wxTextDropTarget, OnEnter);
 174 IMP_PYCALLBACK_DR_2WXCDR(wxPyTextDropTarget, wxTextDropTarget, OnDragOver);
 175 IMP_PYCALLBACK_DR_2WXCDR(wxPyTextDropTarget, wxTextDropTarget, OnData);
 176 IMP_PYCALLBACK_BOOL_INTINT(wxPyTextDropTarget, wxTextDropTarget, OnDrop);
 177
 178 %}
 179
 180 %name(TextDropTarget) class wxPyTextDropTarget : public wxPyDropTarget {
 181 public:
 182     %addtofunc wxPyTextDropTarget   "self._setCallbackInfo(self, TextDropTarget)"
 183
 184     wxPyTextDropTarget();
 185     void _setCallbackInfo(PyObject* self, PyObject* _class);
 186
 187     //bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
 188     wxDragResult base_OnEnter(wxCoord x, wxCoord y, wxDragResult def);
 189     wxDragResult base_OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
 190     void base_OnLeave();
 191     bool base_OnDrop(wxCoord x, wxCoord y);
 192     wxDragResult base_OnData(wxCoord x, wxCoord y, wxDragResult def);
 193 };
 194
 195 //---------------------------------------------------------------------------
 196
 197 // A drop target which accepts files (dragged from File Manager or Explorer)
 198
 199
 200 %{
 201 class wxPyFileDropTarget : public wxFileDropTarget {
 202 public:
 203     wxPyFileDropTarget() {}
 204
 205     virtual bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString& filenames);
 206
 207     DEC_PYCALLBACK__(OnLeave);
 208     DEC_PYCALLBACK_DR_2WXCDR(OnEnter);
 209     DEC_PYCALLBACK_DR_2WXCDR(OnDragOver);
 210     DEC_PYCALLBACK_DR_2WXCDR(OnData);
 211     DEC_PYCALLBACK_BOOL_INTINT(OnDrop);
 212
 213     PYPRIVATE;
 214 };
 215
 216 bool wxPyFileDropTarget::OnDropFiles(wxCoord x, wxCoord y,
 217                                      const wxArrayString& filenames) {
 218     bool rval = False;
 219     wxPyBeginBlockThreads();
 220     if (wxPyCBH_findCallback(m_myInst, "OnDropFiles")) {
 221         PyObject* list = wxArrayString2PyList_helper(filenames);
 222         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("(iiO)",x,y,list));
 223         Py_DECREF(list);
 224     }
 225     wxPyEndBlockThreads();
 226     return rval;
 227 }
 228
 229
 230
 231 IMP_PYCALLBACK__(wxPyFileDropTarget, wxFileDropTarget, OnLeave);
 232 IMP_PYCALLBACK_DR_2WXCDR(wxPyFileDropTarget, wxFileDropTarget, OnEnter);
 233 IMP_PYCALLBACK_DR_2WXCDR(wxPyFileDropTarget, wxFileDropTarget, OnDragOver);
 234 IMP_PYCALLBACK_DR_2WXCDR(wxPyFileDropTarget, wxFileDropTarget, OnData);
 235 IMP_PYCALLBACK_BOOL_INTINT(wxPyFileDropTarget, wxFileDropTarget, OnDrop);
 236
 237 %}
 238
 239
 240 %name(FileDropTarget) class wxPyFileDropTarget : public wxPyDropTarget
 241 {
 242 public:
 243     %addtofunc wxPyFileDropTarget   "self._setCallbackInfo(self, FileDropTarget)"
 244
 245     wxPyFileDropTarget();
 246     void _setCallbackInfo(PyObject* self, PyObject* _class);
 247
 248 //    bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString& filenames) = 0;
 249     wxDragResult base_OnEnter(wxCoord x, wxCoord y, wxDragResult def);
 250     wxDragResult base_OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
 251     void base_OnLeave();
 252     bool base_OnDrop(wxCoord x, wxCoord y);
 253     wxDragResult base_OnData(wxCoord x, wxCoord y, wxDragResult def);
 254 };
 255
 256
 257 //---------------------------------------------------------------------------
 258 %init %{
 259     wxPyPtrTypeMap_Add("wxDropSource",     "wxPyDropSource");
 260     wxPyPtrTypeMap_Add("wxDropTarget",     "wxPyDropTarget");
 261     wxPyPtrTypeMap_Add("wxTextDropTarget", "wxPyTextDropTarget");
 262     wxPyPtrTypeMap_Add("wxFileDropTarget", "wxPyFileDropTarget");
 263 %}
 264 //---------------------------------------------------------------------------
 265
 266 #endif