src/x11/dnd.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/dnd.cpp
   3 // Purpose:     wxDropTarget, wxDropSource classes
   4 // Author:      Julian Smart
   5 // Copyright:   (c) 1998 Julian Smart
   6 // Licence:     wxWindows licence
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // for compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if defined(__BORLANDC__)
  13     #pragma hdrstop
  14 #endif
  15
  16 #if wxUSE_DRAG_AND_DROP
  17
  18 #include "wx/dnd.h"
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/intl.h"
  22     #include "wx/log.h"
  23     #include "wx/app.h"
  24     #include "wx/utils.h"
  25     #include "wx/window.h"
  26     #include "wx/gdicmn.h"
  27 #endif
  28
  29 #include <X11/Xlib.h>
  30
  31 // ----------------------------------------------------------------------------
  32 // global
  33 // ----------------------------------------------------------------------------
  34
  35 // ----------------------------------------------------------------------------
  36 // wxDropTarget
  37 // ----------------------------------------------------------------------------
  38
  39 wxDropTarget::wxDropTarget()
  40 {
  41 }
  42
  43 wxDropTarget::~wxDropTarget()
  44 {
  45 }
  46
  47 // ----------------------------------------------------------------------------
  48 // wxTextDropTarget
  49 // ----------------------------------------------------------------------------
  50
  51 bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) )
  52 {
  53   OnDropText( x, y, (const char*)data );
  54   return true;
  55 }
  56
  57 bool wxTextDropTarget::OnDropText( long x, long y, const char *psz )
  58 {
  59   wxLogDebug( "Got dropped text: %s.", psz );
  60   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  61   return true;
  62 }
  63
  64 size_t wxTextDropTarget::GetFormatCount() const
  65 {
  66   return 1;
  67 }
  68
  69 wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const
  70 {
  71   return wxDF_TEXT;
  72 }
  73
  74 // ----------------------------------------------------------------------------
  75 // wxFileDropTarget
  76 // ----------------------------------------------------------------------------
  77
  78 bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] )
  79 {
  80   wxLogDebug( "Got %d dropped files.", (int)nFiles );
  81   wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
  82   size_t i;
  83   for (i = 0; i < nFiles; i++)
  84   {
  85     wxLogDebug( aszFiles[i] );
  86   }
  87   return true;
  88 }
  89
  90 bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size )
  91 {
  92   size_t number = 0;
  93   char *text = (char*) data;
  94   size_t i;
  95   for (i = 0; i < size; i++)
  96     if (text[i] == 0) number++;
  97
  98   if (number == 0) return true;
  99
 100   char **files = new char*[number];
 101
 102   text = (char*) data;
 103   for ( i = 0; i < number; i++)
 104   {
 105     files[i] = text;
 106     int len = strlen( text );
 107     text += len+1;
 108   }
 109
 110   bool ret = OnDropFiles( x, y, 1, files );
 111
 112   free( files );
 113
 114   return ret;
 115 }
 116
 117 size_t wxFileDropTarget::GetFormatCount() const
 118 {
 119   return 1;
 120 }
 121
 122 wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const
 123 {
 124   return wxDF_FILENAME;
 125 }
 126
 127 //-------------------------------------------------------------------------
 128 // wxDropSource
 129 //-------------------------------------------------------------------------
 130
 131 wxDropSource::wxDropSource( wxWindow *win )
 132 {
 133 #if 0
 134   m_window = win;
 135   m_data = NULL;
 136   m_retValue = wxDragCancel;
 137
 138   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 139   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 140 #endif
 141 }
 142
 143 wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win )
 144 {
 145 #if 0
 146   g_blockEventsOnDrag = true;
 147
 148   m_window = win;
 149   m_widget = win->m_widget;
 150   if (win->m_wxwindow) m_widget = win->m_wxwindow;
 151   m_retValue = wxDragCancel;
 152
 153   m_data = &data;
 154
 155   m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
 156   m_goaheadCursor = wxCursor( wxCURSOR_HAND );
 157 #endif
 158 }
 159
 160 void wxDropSource::SetData( wxDataObject &data )
 161 {
 162 //  m_data = &data;
 163 }
 164
 165 wxDropSource::~wxDropSource(void)
 166 {
 167 //  if (m_data) delete m_data;
 168 }
 169
 170 wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
 171 {
 172   //  wxASSERT_MSG( m_data, "wxDragSource: no data" );
 173
 174   return wxDragNone;
 175 #if 0
 176   if (!m_data) return (wxDragResult) wxDragNone;
 177   if (m_data->GetDataSize() == 0) return (wxDragResult) wxDragNone;
 178
 179   RegisterWindow();
 180
 181   // TODO
 182
 183   UnregisterWindow();
 184
 185   g_blockEventsOnDrag = false;
 186
 187   return m_retValue;
 188 #endif
 189 }
 190
 191 #if 0
 192 void wxDropSource::RegisterWindow(void)
 193 {
 194   if (!m_data) return;
 195
 196   wxString formats;
 197
 198   wxDataFormat df = m_data->GetPreferredFormat();
 199
 200     switch (df)
 201     {
 202       case wxDF_TEXT:
 203         formats += "text/plain";
 204         break;
 205       case wxDF_FILENAME:
 206         formats += "file:ALL";
 207         break;
 208       default:
 209         break;
 210     }
 211
 212   char *str = WXSTRINGCAST formats;
 213
 214   // TODO
 215 }
 216
 217 void wxDropSource::UnregisterWindow(void)
 218 {
 219   if (!m_widget) return;
 220
 221   // TODO
 222 }
 223 #endif
 224
 225 wxPrivateDropTarget::wxPrivateDropTarget()
 226 {
 227     m_id = wxTheApp->GetAppName();
 228 }
 229
 230 size_t wxPrivateDropTarget::GetFormatCount() const
 231 {
 232     return 1;
 233 }
 234
 235 wxDataFormat wxPrivateDropTarget::GetFormat(size_t n) const
 236 {
 237     return wxDF_INVALID;
 238 }
 239
 240 #endif
 241       // wxUSE_DRAG_AND_DROP