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