src/x11/dnd.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/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 // for compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if defined(__BORLANDC__)
  14 #pragma hdrstop
  15 #endif
  16
  17 #if wxUSE_DRAG_AND_DROP
  18
  19 #include "wx/dnd.h"
  20 #include "wx/window.h"
  21 #include "wx/app.h"
  22 #include "wx/gdicmn.h"
  23 #include "wx/intl.h"
  24 #include "wx/utils.h"
  25 #include "wx/log.h"
  26
  27 #include <X11/Xlib.h>
  28
  29 // ----------------------------------------------------------------------------
  30 // global
  31 // ----------------------------------------------------------------------------
  32
  33 // ----------------------------------------------------------------------------
  34 // wxDropTarget
  35 // ----------------------------------------------------------------------------
  36
  37 wxDropTarget::wxDropTarget()
  38 {
  39 }
  40
  41 wxDropTarget::~wxDropTarget()
  42 {
  43 }
  44
  45 // ----------------------------------------------------------------------------
  46 // wxTextDropTarget
  47 // ----------------------------------------------------------------------------
  48
  49 bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) )
  50 {
  51   OnDropText( x, y, (const char*)data );
  52   return true;
  53 }
  54
  55 bool wxTextDropTarget::OnDropText( long x, long y, const char *psz )
  56 {
  57   wxLogDebug( "Got dropped text: %s.", psz );
  58   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  59   return true;
  60 }
  61
  62 size_t wxTextDropTarget::GetFormatCount() const
  63 {
  64   return 1;
  65 }
  66
  67 wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const
  68 {
  69   return wxDF_TEXT;
  70 }
  71
  72 // ----------------------------------------------------------------------------
  73 // wxFileDropTarget
  74 // ----------------------------------------------------------------------------
  75
  76 bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] )
  77 {
  78   wxLogDebug( "Got %d dropped files.", (int)nFiles );
  79   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  80   size_t i;
  81   for (i = 0; i < nFiles; i++)
  82   {
  83     wxLogDebug( aszFiles[i] );
  84   }
  85   return true;
  86 }
  87
  88 bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size )
  89 {
  90   size_t number = 0;
  91   char *text = (char*) data;
  92   size_t i;
  93   for (i = 0; i < size; i++)
  94     if (text[i] == 0) number++;
  95
  96   if (number == 0) return true;
  97
  98   char **files = new char*[number];
  99
 100   text = (char*) data;
 101   for ( i = 0; i < number; i++)
 102   {
 103     files[i] = text;
 104     int len = strlen( text );
 105     text += len+1;
 106   }
 107
 108   bool ret = OnDropFiles( x, y, 1, files );
 109
 110   free( files );
 111
 112   return ret;
 113 }
 114
 115 size_t wxFileDropTarget::GetFormatCount() const
 116 {
 117   return 1;
 118 }
 119
 120 wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const
 121 {
 122   return wxDF_FILENAME;
 123 }
 124
 125 //-------------------------------------------------------------------------
 126 // wxDropSource
 127 //-------------------------------------------------------------------------
 128
 129 wxDropSource::wxDropSource( wxWindow *win )
 130 {
 131 #if 0
 132   m_window = win;
 133   m_data = (wxDataObject *) NULL;
 134   m_retValue = wxDragCancel;
 135
 136   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 137   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 138 #endif
 139 }
 140
 141 wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win )
 142 {
 143 #if 0
 144   g_blockEventsOnDrag = true;
 145
 146   m_window = win;
 147   m_widget = win->m_widget;
 148   if (win->m_wxwindow) m_widget = win->m_wxwindow;
 149   m_retValue = wxDragCancel;
 150
 151   m_data = &data;
 152
 153   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 154   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 155 #endif
 156 }
 157
 158 void wxDropSource::SetData( wxDataObject &data )
 159 {
 160 //  m_data = &data;
 161 }
 162
 163 wxDropSource::~wxDropSource(void)
 164 {
 165 //  if (m_data) delete m_data;
 166 }
 167
 168 wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
 169 {
 170   //  wxASSERT_MSG( m_data, "wxDragSource: no data" );
 171
 172   return wxDragNone;
 173 #if 0
 174   if (!m_data) return (wxDragResult) wxDragNone;
 175   if (m_data->GetDataSize() == 0) return (wxDragResult) wxDragNone;
 176
 177   RegisterWindow();
 178
 179   // TODO
 180
 181   UnregisterWindow();
 182
 183   g_blockEventsOnDrag = FALSE;
 184
 185   return m_retValue;
 186 #endif
 187 }
 188
 189 #if 0
 190 void wxDropSource::RegisterWindow(void)
 191 {
 192   if (!m_data) return;
 193
 194   wxString formats;
 195
 196   wxDataFormat df = m_data->GetPreferredFormat();
 197
 198     switch (df)
 199     {
 200       case wxDF_TEXT:
 201         formats += "text/plain";
 202         break;
 203       case wxDF_FILENAME:
 204         formats += "file:ALL";
 205         break;
 206       default:
 207         break;
 208     }
 209
 210   char *str = WXSTRINGCAST formats;
 211
 212   // TODO
 213 }
 214
 215 void wxDropSource::UnregisterWindow(void)
 216 {
 217   if (!m_widget) return;
 218
 219   // TODO
 220 }
 221 #endif
 222
 223 wxPrivateDropTarget::wxPrivateDropTarget()
 224 {
 225     m_id = wxTheApp->GetAppName();
 226 }
 227
 228 size_t wxPrivateDropTarget::GetFormatCount() const
 229 {
 230     return 1;
 231 }
 232
 233 wxDataFormat wxPrivateDropTarget::GetFormat(size_t n) const
 234 {
 235     return wxDF_INVALID;
 236 }
 237
 238 #endif
 239       // wxUSE_DRAG_AND_DROP