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