src/x11/dnd.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dnd.cpp
   3 // Purpose:     wxDropTarget, wxDropSource classes
   4 // Author:      Julian Smart
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Julian Smart
   7 // Licence:     wxWindows licence
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 #include "wx/setup.h"
  11
  12 #if wxUSE_DRAG_AND_DROP
  13
  14 #include "wx/dnd.h"
  15 #include "wx/window.h"
  16 #include "wx/app.h"
  17 #include "wx/gdicmn.h"
  18 #include "wx/intl.h"
  19 #include "wx/utils.h"
  20 #include "wx/log.h"
  21
  22 #include <X11/Xlib.h>
  23
  24 // ----------------------------------------------------------------------------
  25 // global
  26 // ----------------------------------------------------------------------------
  27
  28 // ----------------------------------------------------------------------------
  29 // wxDropTarget
  30 // ----------------------------------------------------------------------------
  31
  32 wxDropTarget::wxDropTarget()
  33 {
  34 }
  35
  36 wxDropTarget::~wxDropTarget()
  37 {
  38 }
  39
  40 // ----------------------------------------------------------------------------
  41 // wxTextDropTarget
  42 // ----------------------------------------------------------------------------
  43
  44 bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) )
  45 {
  46   OnDropText( x, y, (const char*)data );
  47   return TRUE;
  48 }
  49
  50 bool wxTextDropTarget::OnDropText( long x, long y, const char *psz )
  51 {
  52   wxLogDebug( "Got dropped text: %s.", psz );
  53   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  54   return TRUE;
  55 }
  56
  57 size_t wxTextDropTarget::GetFormatCount() const
  58 {
  59   return 1;
  60 }
  61
  62 wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const
  63 {
  64   return wxDF_TEXT;
  65 }
  66
  67 // ----------------------------------------------------------------------------
  68 // wxFileDropTarget
  69 // ----------------------------------------------------------------------------
  70
  71 bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] )
  72 {
  73   wxLogDebug( "Got %d dropped files.", (int)nFiles );
  74   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  75   size_t i;
  76   for (i = 0; i < nFiles; i++)
  77   {
  78     wxLogDebug( aszFiles[i] );
  79   }
  80   return TRUE;
  81 }
  82
  83 bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size )
  84 {
  85   size_t number = 0;
  86   char *text = (char*) data;
  87   size_t i;
  88   for (i = 0; i < size; i++)
  89     if (text[i] == 0) number++;
  90
  91   if (number == 0) return TRUE;
  92
  93   char **files = new char*[number];
  94
  95   text = (char*) data;
  96   for ( i = 0; i < number; i++)
  97   {
  98     files[i] = text;
  99     int len = strlen( text );
 100     text += len+1;
 101   }
 102
 103   bool ret = OnDropFiles( x, y, 1, files );
 104
 105   free( files );
 106
 107   return ret;
 108 }
 109
 110 size_t wxFileDropTarget::GetFormatCount() const
 111 {
 112   return 1;
 113 }
 114
 115 wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const
 116 {
 117   return wxDF_FILENAME;
 118 }
 119
 120 //-------------------------------------------------------------------------
 121 // wxDropSource
 122 //-------------------------------------------------------------------------
 123
 124 wxDropSource::wxDropSource( wxWindow *win )
 125 {
 126 #if 0
 127   m_window = win;
 128   m_data = (wxDataObject *) NULL;
 129   m_retValue = wxDragCancel;
 130
 131   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 132   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 133 #endif
 134 }
 135
 136 wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win )
 137 {
 138 #if 0
 139   g_blockEventsOnDrag = TRUE;
 140
 141   m_window = win;
 142   m_widget = win->m_widget;
 143   if (win->m_wxwindow) m_widget = win->m_wxwindow;
 144   m_retValue = wxDragCancel;
 145
 146   m_data = &data;
 147
 148   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 149   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 150 #endif
 151 }
 152
 153 void wxDropSource::SetData( wxDataObject &data )
 154 {
 155 //  m_data = &data;
 156 }
 157
 158 wxDropSource::~wxDropSource(void)
 159 {
 160 //  if (m_data) delete m_data;
 161 }
 162
 163 wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
 164 {
 165   //  wxASSERT_MSG( m_data, "wxDragSource: no data" );
 166
 167   return wxDragNone;
 168 #if 0
 169   if (!m_data) return (wxDragResult) wxDragNone;
 170   if (m_data->GetDataSize() == 0) return (wxDragResult) wxDragNone;
 171
 172   RegisterWindow();
 173
 174   // TODO
 175
 176   UnregisterWindow();
 177
 178   g_blockEventsOnDrag = FALSE;
 179
 180   return m_retValue;
 181 #endif
 182 }
 183
 184 #if 0
 185 void wxDropSource::RegisterWindow(void)
 186 {
 187   if (!m_data) return;
 188
 189   wxString formats;
 190
 191   wxDataFormat df = m_data->GetPreferredFormat();
 192
 193     switch (df)
 194     {
 195       case wxDF_TEXT:
 196         formats += "text/plain";
 197         break;
 198       case wxDF_FILENAME:
 199         formats += "file:ALL";
 200         break;
 201       default:
 202         break;
 203     }
 204
 205   char *str = WXSTRINGCAST formats;
 206
 207   // TODO
 208 }
 209
 210 void wxDropSource::UnregisterWindow(void)
 211 {
 212   if (!m_widget) return;
 213
 214   // TODO
 215 }
 216 #endif
 217
 218 wxPrivateDropTarget::wxPrivateDropTarget()
 219 {
 220     m_id = wxTheApp->GetAppName();
 221 }
 222
 223 size_t wxPrivateDropTarget::GetFormatCount() const
 224 {
 225     return 1;
 226 }
 227
 228 wxDataFormat wxPrivateDropTarget::GetFormat(size_t n) const
 229 {
 230     return wxDF_INVALID;
 231 }
 232
 233 #endif
 234       // wxUSE_DRAG_AND_DROP