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 #ifdef __GNUG__
  11 #pragma implementation "dnd.h"
  12 #endif
  13
  14 #include "wx/setup.h"
  15
  16 #if wxUSE_DRAG_AND_DROP
  17
  18 #include "wx/dnd.h"
  19 #include "wx/window.h"
  20 #include "wx/app.h"
  21 #include "wx/gdicmn.h"
  22 #include "wx/intl.h"
  23 #include "wx/utils.h"
  24 #include "wx/log.h"
  25
  26 #include <X11/Xlib.h>
  27
  28 // ----------------------------------------------------------------------------
  29 // global
  30 // ----------------------------------------------------------------------------
  31
  32 // ----------------------------------------------------------------------------
  33 // wxDropTarget
  34 // ----------------------------------------------------------------------------
  35
  36 wxDropTarget::wxDropTarget()
  37 {
  38 }
  39
  40 wxDropTarget::~wxDropTarget()
  41 {
  42 }
  43
  44 // ----------------------------------------------------------------------------
  45 // wxTextDropTarget
  46 // ----------------------------------------------------------------------------
  47
  48 bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) )
  49 {
  50   OnDropText( x, y, (const char*)data );
  51   return TRUE;
  52 }
  53
  54 bool wxTextDropTarget::OnDropText( long x, long y, const char *psz )
  55 {
  56   wxLogDebug( "Got dropped text: %s.", psz );
  57   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  58   return TRUE;
  59 }
  60
  61 size_t wxTextDropTarget::GetFormatCount() const
  62 {
  63   return 1;
  64 }
  65
  66 wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const
  67 {
  68   return wxDF_TEXT;
  69 }
  70
  71 // ----------------------------------------------------------------------------
  72 // wxFileDropTarget
  73 // ----------------------------------------------------------------------------
  74
  75 bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] )
  76 {
  77   wxLogDebug( "Got %d dropped files.", (int)nFiles );
  78   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  79   size_t i;
  80   for (i = 0; i < nFiles; i++)
  81   {
  82     wxLogDebug( aszFiles[i] );
  83   }
  84   return TRUE;
  85 }
  86
  87 bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size )
  88 {
  89   size_t number = 0;
  90   char *text = (char*) data;
  91   size_t i;
  92   for (i = 0; i < size; i++)
  93     if (text[i] == 0) number++;
  94
  95   if (number == 0) return TRUE;
  96
  97   char **files = new char*[number];
  98
  99   text = (char*) data;
 100   for ( i = 0; i < number; i++)
 101   {
 102     files[i] = text;
 103     int len = strlen( text );
 104     text += len+1;
 105   }
 106
 107   bool ret = OnDropFiles( x, y, 1, files );
 108
 109   free( files );
 110
 111   return ret;
 112 }
 113
 114 size_t wxFileDropTarget::GetFormatCount() const
 115 {
 116   return 1;
 117 }
 118
 119 wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const
 120 {
 121   return wxDF_FILENAME;
 122 }
 123
 124 //-------------------------------------------------------------------------
 125 // wxDropSource
 126 //-------------------------------------------------------------------------
 127
 128 wxDropSource::wxDropSource( wxWindow *win )
 129 {
 130 #if 0
 131   m_window = win;
 132   m_data = (wxDataObject *) NULL;
 133   m_retValue = wxDragCancel;
 134
 135   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 136   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 137 #endif
 138 }
 139
 140 wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win )
 141 {
 142 #if 0
 143   g_blockEventsOnDrag = TRUE;
 144
 145   m_window = win;
 146   m_widget = win->m_widget;
 147   if (win->m_wxwindow) m_widget = win->m_wxwindow;
 148   m_retValue = wxDragCancel;
 149
 150   m_data = &data;
 151
 152   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 153   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 154 #endif
 155 }
 156
 157 void wxDropSource::SetData( wxDataObject &data )
 158 {
 159 //  m_data = &data;
 160 }
 161
 162 wxDropSource::~wxDropSource(void)
 163 {
 164 //  if (m_data) delete m_data;
 165 }
 166
 167 wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
 168 {
 169   //  wxASSERT_MSG( m_data, "wxDragSource: no data" );
 170
 171   return wxDragNone;
 172 #if 0
 173   if (!m_data) return (wxDragResult) wxDragNone;
 174   if (m_data->GetDataSize() == 0) return (wxDragResult) wxDragNone;
 175
 176   RegisterWindow();
 177
 178   // TODO
 179
 180   UnregisterWindow();
 181
 182   g_blockEventsOnDrag = FALSE;
 183
 184   return m_retValue;
 185 #endif
 186 }
 187
 188 #if 0
 189 void wxDropSource::RegisterWindow(void)
 190 {
 191   if (!m_data) return;
 192
 193   wxString formats;
 194
 195   wxDataFormat df = m_data->GetPreferredFormat();
 196
 197     switch (df)
 198     {
 199       case wxDF_TEXT:
 200         formats += "text/plain";
 201         break;
 202       case wxDF_FILENAME:
 203         formats += "file:ALL";
 204         break;
 205       default:
 206         break;
 207     }
 208
 209   char *str = WXSTRINGCAST formats;
 210
 211   // TODO
 212 }
 213
 214 void wxDropSource::UnregisterWindow(void)
 215 {
 216   if (!m_widget) return;
 217
 218   // TODO
 219 }
 220 #endif
 221
 222 wxPrivateDropTarget::wxPrivateDropTarget()
 223 {
 224     m_id = wxTheApp->GetAppName();
 225 }
 226
 227 size_t wxPrivateDropTarget::GetFormatCount() const
 228 {
 229     return 1;
 230 }
 231
 232 wxDataFormat wxPrivateDropTarget::GetFormat(size_t n) const
 233 {
 234     return wxDF_INVALID;
 235 }
 236
 237 #endif
 238       // wxUSE_DRAG_AND_DROP